CN210097853U

CN210097853U - Waste steel cutting and crushing machine

Info

Publication number: CN210097853U
Application number: CN201920392663.0U
Authority: CN
Inventors: 张德军
Original assignee: Liaoning Tiangong Intelligent Environmental Protection Technology Co Ltd
Current assignee: Liaoning Tiangong Intelligent Environmental Protection Technology Co Ltd
Priority date: 2019-03-26
Filing date: 2019-03-26
Publication date: 2020-02-21
Anticipated expiration: 2029-03-26

Abstract

The utility model provides a waste steel cutting rubbing crusher, the on-off control cabinet comprises a base, a workbench, a switch control cabinet, drive arrangement, rotor cutting device, stationary knife device and loading attachment, drive arrangement's two motors, two speed reducers drive rotor cutting device main shaft respectively, the main tool bit and the vice tool bit of a plurality of main blade discs and a plurality of vice blade discs of main shaft are the heliciform and distribute, the stationary knife fixed plate perpendicular to rotor cutting device outer warp tangent plane of stationary knife device, and it is fixed to be 25 contained angles with vertical direction, stationary knife fixed plate facial make-up is equipped with a plurality of stationary knives, a plurality of main tool bits pass through groove department cooperation with a plurality of tool bits that a plurality of stationary knives were arranged when rotor cutting device was rotatory, a plurality of vice tool bits and the cooperation of stationary knife outstanding face. The feeding hopper of the feeding device is supported by a hopper bracket, and the lower end of the feeding hopper is connected with two hydraulic oil cylinder shafts. The utility model discloses only a tool bit is the stress point when cuting, has reduced the resistance, and increase pressure has promoted cutting efficiency.

Description

Waste steel cutting and crushing machine

Technical Field

The utility model relates to a metallurgical equipment technical field, in particular to old and useless steel cutting crushing machinery device.

Background

The steel scrap crusher is a crushing machine for producing crushed steel scrap, and is mainly used for processing steel bars and steel bar groups into steel bar particles, wherein the steel bar particles are the first choice of steel-smelting furnace burden of iron and steel smelting enterprises in the world. At present, the main part of the waste steel treatment is the crushing line, and the principle is that the hammer head is rotated to strike the waste steel in turn, so that the waste steel is crushed into small crushed materials. But the broken line can not process waste steel such as reinforcing steel bars, reinforcing steel bar groups and the like, and can only process large light thin materials. In addition, the cutting machines such as the gantry shears and the crocodile shears can shear waste steel, but the steel bar shearing efficiency is low, and the length specification of finished products is difficult to control by shearing messy steel bars such as steel bar groups.

SUMMERY OF THE UTILITY MODEL

The utility model aims at not enough and the defect of prior art, provide a waste steel cutting rubbing crusher, this cutting rubbing crusher can process waste steel bar, reinforcing bar group for the reinforcing bar grain, and the reinforcing bar grain is the first-selected steelmaking smelting furnace charge of iron and steel smelting enterprise.

The technical scheme is as follows:

the utility model provides a waste steel cutting rubbing crusher, includes base, workstation, switch control cabinet, drive arrangement, rotor cutting device, stationary knife device and loading attachment, and its main points are that the base lower extreme is fixed to be set up subaerial, and the workstation is fixed to be set up on the base up end. The switch control cabinet is fixedly arranged on the upper end surface of one side of the workbench, and a steel bar grain funnel is fixedly arranged in the middle of the workbench.

The driving device comprises two motors, two speed reducers, a plurality of V-belts and four supporting bearing seats, wherein the two motors are respectively and correspondingly and fixedly arranged on the upper end surfaces of two sides of the workbench, the two speed reducers are respectively arranged in parallel with the two motors, and the lower ends of the two speed reducers are respectively and fixedly arranged on the upper end surface of the workbench. The two motors are respectively connected with a controller of the switch control cabinet through leads, output belt pulleys are respectively fixedly sleeved on output shafts of the two motors, and input belt pulleys are respectively fixedly sleeved on input shafts of the two speed reducers. The triangular belts are respectively and tightly sleeved on the output belt pulley and the input belt pulley. The four supporting bearing seats are respectively arranged at the corresponding positions of the output shafts of the two speed reducers according to two groups of parallel, the lower ends of the four supporting bearing seats are respectively and fixedly arranged on the upper end surface of the workbench, the output shafts of the two speed reducers are respectively supported by the supporting bearing seats, and the output shafts between the two supporting bearing seats are respectively and fixedly sleeved with a rotating chain wheel group.

The rotor cutting device comprises a main shaft, a plurality of main cutter heads, a plurality of auxiliary cutter heads, two end face spacer bushes, two positioning locking retaining rings and four main shaft supporting bearing seats, wherein the middle part of the main shaft is hexagonal, and a single key groove is concavely arranged on one side end face of the hexagonal shape. The side walls of the main cutter heads, the auxiliary cutter heads and the two end face spacers are correspondingly provided with a plurality of screw holes respectively, inner hexagonal sleeve holes are formed in the middle of the main cutter heads, the auxiliary cutter heads and the two end face spacers respectively, and a single-key jack is concavely arranged on one side wall of each inner hexagonal sleeve hole. The main cutter heads and the auxiliary cutter heads are not repeatedly arranged and tightly sleeved on the hexagonal shape of the main shaft respectively, two end face spacer sleeves are arranged at two ends of the main cutter heads and the auxiliary cutter heads respectively and sleeved on the hexagonal shape of the main shaft respectively, the single-key groove and the single-key jacks are correspondingly arranged respectively, and positioning keys are fixedly inserted in the single-key groove and the single-key jacks respectively. And a plurality of screw holes on the plurality of main cutter heads, the plurality of auxiliary cutter heads and the two end face spacer bushes are respectively and transversely penetrated and inserted with cutter head fixing screw rods, and two ends of the plurality of cutter head fixing screw rods are respectively fixed through nuts. The two positioning locking baffle rings are respectively arranged at the outer ends of the two end face spacer sleeves, and the two positioning locking baffle rings are respectively in threaded connection with the main shaft. The main cutter fixing seats on the main cutter discs are respectively arranged in a spiral mode, main cutter fixing bosses are arranged on the main cutter fixing seats in a protruding mode, and more than two main cutter fixing screw holes are formed in the main cutter fixing bosses respectively. The multi-cutter head cutting machine is characterized in that an arc-shaped groove is formed in the front end face of each main cutter head, main cutter fixing grooves are formed in the rear end faces of the main cutter heads respectively, more than two main cutter screw holes are formed in the main cutter fixing grooves and the front end faces of the main cutter heads in a penetrating mode, the main cutter fixing grooves are arranged on the main cutter fixing bases respectively in a clamping mode and are arranged on the main cutter fixing bosses respectively, and main cutter bolts are fixedly arranged in the main cutter screw holes and the main cutter fixing screw holes respectively. The auxiliary cutter fixing seats on the auxiliary cutter discs are respectively arranged on the peripheries of the auxiliary cutter discs and are spirally arranged with the main cutter fixing seats on the main cutter discs in a line, auxiliary cutter fixing bosses are convexly arranged on the auxiliary cutter fixing seats, and auxiliary cutter fixing screw holes are formed in the auxiliary cutter fixing bosses. The auxiliary cutter fixing device is characterized in that auxiliary cutter fixing grooves are formed in the rear end faces of the auxiliary cutter heads respectively, auxiliary cutter screw holes are formed in the auxiliary cutter fixing grooves and the front end faces of the auxiliary cutter heads in a penetrating mode, the auxiliary cutter heads are installed on the auxiliary cutter fixing seats respectively, the auxiliary cutter fixing grooves are arranged on the auxiliary cutter fixing bosses in a clamping mode respectively, and auxiliary cutter bolts are fixedly arranged in the auxiliary cutter screw holes and the auxiliary cutter fixing screw holes respectively. The four main shaft supporting bearing seats are respectively arranged on two sides of the main shaft in a group, the lower ends of the four main shaft supporting bearing seats are respectively fixedly connected with the workbench, two sides of the main shaft are respectively supported by the four main shaft supporting bearing seats, main shaft chain wheel groups are respectively fixedly arranged on the main shaft between the two main shaft supporting bearing seats, and the main shaft chain wheel groups are respectively connected with the rotating chain wheel groups through chains.

Four main cutter fixing seats are respectively arranged on the peripheries of the main cutter discs, and the main cutter fixing seats on the main cutter discs are respectively arranged spirally on the main shaft. Four auxiliary cutter fixing seats are respectively arranged on the peripheries of the auxiliary cutter discs, and the auxiliary cutter fixing seats on the auxiliary cutter discs are respectively spirally arranged with the main cutter fixing seats on the main cutter discs in a same line.

The main cutter heads are respectively a left main cutter head and a right main cutter head, the groove wall of the arc-shaped groove of the left main cutter head is an inclined wall with the left side groove wall being 10-15 degrees higher than the right side groove wall, the groove wall of the arc-shaped groove of the right main cutter head is an inclined wall with the right side groove wall being 10-15 degrees higher than the left side groove wall, and the main cutter heads are respectively fixedly arranged on the main cutter fixing seats of each main cutter head according to different non-repeated arrangements of the arc-shaped groove angles of the left main cutter head and the right main cutter head.

The auxiliary cutter heads are respectively a left auxiliary cutter head and a right auxiliary cutter head, the front end face of the left auxiliary cutter head is an inclined plane with the left side higher than the right side by 10-15 degrees, the front end face of the right auxiliary cutter head is an inclined plane with the right side higher than the left side by 10-15 degrees, and the auxiliary cutter heads are respectively fixedly arranged on the auxiliary cutter fixing seats of each auxiliary cutter head according to different non-repeated arrangement of the angles of the inclined planes of the left auxiliary cutter head and the right auxiliary cutter head.

The fixed cutter device comprises a plurality of fixed cutters, two fixed cutter guard plates, a fixed cutter fixing plate, a pressing plate, an upper cover plate and a fixed cutter plate support, cutter heads are arranged at two ends of the fixed cutters respectively, fixed clamping grooves are formed in the upper end face and the lower end face of the fixed cutters respectively, and the distances between the cutter heads at two ends of the fixed cutters and the fixed clamping grooves are different. The fixed cutter fixing plate is characterized in that a plurality of cutter head through grooves are concavely arranged at the lower end of the fixed cutter fixing plate, fixed cutter clamping tables are fixedly arranged on the upper end face of the fixed cutter fixing plate at the rear ends of the cutter head through grooves, fixed cutter baffles are fixedly arranged on two sides of the upper end of the fixed cutter fixing plate respectively, and a plurality of fixed cutter fixing screw holes are correspondingly arranged on the side walls of the fixed cutter baffles, the two fixed cutter guard plates and the plurality of fixed cutters respectively. The fixed knives are respectively arranged on the lower portion of the fixed knife fixing plate in the positive and negative directions in a non-repeated mode, the concave-convex grooves formed in the positive and negative lengths of the fixed knives are respectively matched with the tool bits through grooves, and the fixed clamping grooves at the lower ends of the fixed knives are respectively clamped on the fixed knife clamping table. When the rotor cutting device rotates, the plurality of main cutter heads are matched with the plurality of cutter heads arranged by the plurality of fixed cutters through the grooves, and the plurality of auxiliary cutter heads are matched with the plurality of fixed cutter protruding surfaces. The two fixed cutter guard plates are respectively arranged on two end faces of the plurality of fixed cutters, fixed cutter fixing screw rods are respectively inserted into the fixed cutter fixing screw holes on the fixed cutter baffle plate, the two fixed cutter guard plates and the plurality of fixed cutter side walls, two ends of each fixed cutter fixing screw rod are fixed through nuts, and the plurality of fixing screw rods between the fixed cutter guard plates and the fixed cutter baffle plates are respectively sleeved with the nuts. The lower end face of the pressing plate is fixedly provided with a positioning clamp table, the pressing plate is buckled on the plurality of fixed cutters, the positioning clamp table is clamped in fixing clamp grooves in the upper ends of the plurality of fixed cutters respectively, a plurality of fixing screw holes are correspondingly formed in the pressing plate and the fixed cutter fixing plate respectively, bolts are inserted into the plurality of fixing screw holes respectively, and the pressing plate and the fixed cutter fixing plate are fixedly connected through nuts sleeved at the upper end and the lower end of the plurality of bolts respectively. The upper cover plate is fixedly arranged on the upper end surface of the pressing plate. The fixed cutter plate support is fixedly arranged on the lower end face of the fixed cutter fixing plate, and the fixed cutter fixing plate is perpendicular to the outer diameter tangent plane of the rotor cutting device and is fixed at an included angle of 25 degrees with the vertical direction. The lower end of the fixed cutter plate bracket is fixedly connected with the workbench.

The feeding device comprises a feeding hopper, two hydraulic oil cylinders and a hopper support, wherein turning shaft arms are respectively arranged on two sides of the lower end of the feeding hopper, the turning shaft arms are respectively connected with the hopper support through turning hinge pins, and the lower end of the hopper support is fixedly connected with a fixed workbench. The two hydraulic oil cylinders are respectively arranged in the hopper support, the lower ends of the two hydraulic oil cylinders are respectively connected with the hopper support shaft through pin shafts, the upper ends of the two hydraulic oil cylinders are respectively connected with the tipping bucket support arm shaft at the lower end of the upper hopper through supporting pin shafts, and the hydraulic pumps of the two hydraulic oil cylinders are respectively connected with a controller of the switch control cabinet through wires.

The utility model discloses a mode of bi-motor is the power take off source, and the motor head is connected with the motor synchronizer for the belt lace wheel to guarantee the synchronism of two motors. The small belt pulley and the large belt pulley on the speed reducer are connected by the triangular belt, so that power transmission is realized. The motor is a wound-rotor three-phase asynchronous motor, the rated working voltage is 380V, the rated frequency is 50Hz, the rated power is 95kW, the rated rotating speed is 725r/min, the protection grade is IP23, and the insulation grade is grade B.

The utility model discloses an utilize the shearing edge principle of cuting, drive the speed reducer under two high-power motor's synchronous drive, the chain for the speed reducer is connected with the host computer rotor and is made the host computer rotatory, and the main tool bit and the vice tool bit of a plurality of main blade discs and a plurality of vice blade discs of rotor cutting device are the heliciform and distribute on the rotor, cuts steel scrap such as reinforcing bar group in turn, only a tool bit is the stress point during shearing, has reduced the resistance, increases pressure, has promoted cutting efficiency. The waste steel bars and the steel bar groups can be processed into steel bar particles by shearing the tool bit on the rotor and the fixed knife. The utility model discloses can cut the diameter and be scrap steel such as reinforcing bar below 32mm, breaker entry size is 3500mm 800mm, and even in order to guarantee the feeding, it can be higher to throw the material size according to above 70% control production efficiency during actual operation.

The utility model discloses the kibbling reinforcing bar grain of cutting is the steelmaking smelting furnace charge of the first choice of iron and steel smelting enterprise in the world today, and the reinforcing bar grain lies in as steelmaking smelting furnace charge advantage: the yield is high, namely the proportion of the refined molten steel and the input scrap steel is high, the chemical components of the molten steel in each furnace are stable, the content of phosphorus and sulfur in the molten steel is reduced, and when the reinforcing steel bar particles and other scrap steel are mixed for feeding, the broken steel particles can be filled in gaps, so that the feeding density is improved. The technical operation is easier during smelting, the air pollution is reduced, the charging times are reduced, the electrode damage is reduced, the heating in the furnace is uniform, and the service life of the refractory material lining in the furnace is prolonged.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a schematic structural view of the workbench of the present invention.

Fig. 3 is a schematic structural view of the rotor cutting device of the present invention.

Fig. 4 is a schematic view of a partial cross-sectional structure of the rotor cutting device of the present invention.

Fig. 5 is a schematic view of the structure of the main cutter head of the present invention.

Fig. 6 is a schematic view of the structure of the auxiliary cutter head of the present invention.

Fig. 7 is a schematic view of the end face spacer structure of the present invention.

Fig. 8 is a schematic view of a left main cutter head structure of the main cutter head of the present invention.

Fig. 9 is a schematic view of a right main tool bit structure of the main tool bit of the present invention.

Fig. 10 is a schematic view of a left auxiliary tool bit structure of the auxiliary tool bit of the present invention.

Fig. 11 is a schematic view of a right auxiliary tool bit structure of the auxiliary tool bit of the present invention.

Fig. 12 is a schematic structural view of the stationary knife device of the present invention.

Fig. 13 is a side sectional view of the stationary blade device of the present invention.

Fig. 14 is a structural view of the feeding device of the present invention.

Fig. 15 is a side sectional view of the feeding device of the present invention.

Detailed Description

The utility model provides a waste steel cutting rubbing crusher, includes base 1, workstation 2, switch control cabinet 3, drive arrangement, rotor cutting device, stationary knife device and loading attachment, and its main points are that the fixed setting of base 1 lower extreme is subaerial, and workstation 2 is fixed to be set up on base 1 up end. Switch control cabinet 3 fixed set up on workstation 2 one side up end, be provided with reinforcing bar grain funnel 4 in the middle of workstation 2 is fixed.

The driving device comprises two motors 5, two speed reducers 6, a plurality of triangular belts 7 and four supporting bearing seats 8, wherein the two motors are wound three-phase asynchronous motors respectively, the rated working voltage is 380V, the rated frequency is 50Hz, the rated power is 95kW, the rated rotating speed is 725r/min, the protection grade is IP23, and the insulation grade is B grade. The two motors 5 are respectively and fixedly arranged on the upper end surfaces of the two sides of the workbench 2 correspondingly, the two speed reducers 6 are respectively arranged in parallel with the two motors 5, and the lower ends of the two speed reducers are respectively and fixedly arranged on the upper end surface of the workbench 2. The two motors 5 are respectively connected with a controller of the switch control cabinet 3 through leads, output belt pulleys 9 are respectively fixedly sleeved on output shafts of the two motors 5, and input belt pulleys 10 are respectively fixedly sleeved on input shafts of the two speed reducers 6. The triangular belts 7 are respectively sleeved on the output belt pulley 9 and the input belt pulley 10 in a tight fit manner. The four supporting bearing seats 8 are respectively arranged at the corresponding positions of the output shafts 11 of the two speed reducers 6 in parallel according to a group of two, the lower ends of the four supporting bearing seats 8 are respectively fixedly arranged on the upper end surface of the workbench 2, the output shafts 11 of the two speed reducers 6 are respectively supported by the supporting bearing seats 8, and the output shafts 11 between the two supporting bearing seats 8 are respectively fixedly sleeved with a rotating chain wheel group 12.

The rotor cutting device comprises a main shaft 13, a plurality of main cutter heads 14, a plurality of main cutter heads 15, a plurality of auxiliary cutter heads 16, a plurality of auxiliary cutter heads 17, two end face spacer bushes 18, two positioning locking retaining rings 19 and four main shaft supporting bearing seats 20, wherein the middle part of the main shaft 13 is in a hexagonal shape 21, and a single key groove 22 is concavely arranged on one side end face of the hexagonal shape 21. The side walls of the main cutter heads 15, the auxiliary cutter heads 17 and the two end face spacers 18 are respectively and correspondingly provided with four screw holes 23, the middles of the main cutter heads 15, the auxiliary cutter heads 17 and the two end face spacers 18 are respectively provided with an inner hexagonal sleeve hole 24, and one side wall of the inner hexagonal sleeve hole 24 is respectively and concavely provided with a single key jack 25. The main cutter heads 15 and the auxiliary cutter heads 17 are not repeatedly arranged and tightly sleeved on the hexagonal shape 21 of the main shaft 13, the two end face spacer bushes 18 are arranged at two ends of the main cutter heads 15 and the auxiliary cutter heads 17 respectively and sleeved on the hexagonal shape 21 of the main shaft 13 respectively, the single-key grooves 22 and the single-key jacks 25 are correspondingly arranged respectively, and the positioning keys 26 are fixedly inserted in the single-key grooves 22 and the single-key jacks 25 respectively. The cutter head fixing screws 27 are transversely inserted through the four screw holes 23 in the main cutter heads 15, the auxiliary cutter heads 17 and the two end face spacers 18, and two ends of each cutter head fixing screw 27 are fixed through nuts. The two positioning locking retaining rings 19 are respectively arranged at the outer ends of the two end face spacer sleeves 18, and the two positioning locking retaining rings 19 are respectively in threaded connection with the main shaft 13. The periphery of the main cutter heads 15 is provided with four main cutter fixing seats 28, the main cutter fixing seats 28 on the main cutter heads 15 are arranged spirally, main cutter fixing bosses 29 are convexly arranged on the main cutter fixing seats 28, and two main cutter fixing screw holes 30 are arranged on the main cutter fixing bosses 29. The front end faces of the main cutter heads 14 are provided with arc-shaped grooves 59, the main cutter heads 14 are respectively a left main cutter head and a right main cutter head, the groove wall of the arc-shaped groove 59 of the left main cutter head is an inclined wall with the left side groove wall being 10 degrees higher than the right side groove wall, and the groove wall of the arc-shaped groove 59 of the right main cutter head is an inclined wall with the right side groove wall being 10 degrees higher than the left side groove wall. The rear end surfaces of the main cutter heads 14 are respectively provided with a main cutter fixing groove 31, two main cutter screw holes 32 are arranged on the main cutter fixing grooves 31 and the front end surfaces of the main cutter heads 14 in a penetrating manner, and the main cutter heads 14 are respectively fixedly arranged on the main cutter fixing seat 28 of each main cutter head 15 according to different non-repeated arrangements of the angles of the arc-shaped grooves 59 of the left main cutter head and the right main cutter head. The main cutter fixing grooves 31 are respectively clamped on the main cutter fixing bosses 29, and main cutter bolts 33 are respectively fixedly arranged in the main cutter screw holes 32 and the main cutter fixing screw holes 30. The periphery of the auxiliary cutterheads 17 is respectively provided with four auxiliary knife fixing seats 34, the auxiliary knife fixing seats 34 on the auxiliary cutterheads 17 are respectively arranged in a linear spiral mode with the main knife fixing seats 28 on the main cutterheads 15, auxiliary knife fixing bosses 35 are arranged on the auxiliary knife fixing seats 34 in a protruding mode, and auxiliary knife fixing screw holes 36 are formed in the auxiliary knife fixing bosses 35. A plurality of vice tool bits 16 be left vice tool bit and right vice tool bit respectively, the preceding terminal surface of left side vice tool bit is higher than the inclined plane of right side 10 for the left side, the preceding terminal surface of right side vice tool bit is higher than the inclined plane of left side 10 for the right side, be equipped with vice sword fixed groove 37 on a plurality of vice tool bit 16 rear end faces respectively, the terminal surface link up with vice tool bit 16 before vice sword fixed groove 37 and is provided with vice sword screw 38, a plurality of vice tool bits 16 are fixed respectively on every vice cutter head 17's vice sword fixing base 34 according to the different not repetitious arrangements of the inclined plane angle of left side vice tool bit and right side vice tool bit. The auxiliary cutter fixing grooves 37 are respectively clamped on the auxiliary cutter fixing bosses 35, and auxiliary cutter bolts 39 are respectively fixedly arranged in the auxiliary cutter screw holes 38 and the auxiliary cutter fixing screw holes 36. The main cutter heads 14 and the auxiliary cutter heads 16 are all processed by using the most advanced M42 in China at present as a raw material, the hardness of M42 steel is high and can reach 70HRC, the hot hardness is good, the high-temperature hardness is high, and the cutting is easy. A plurality of main tool bits 14 and a plurality of vice tool bit 16 are the heliciform and distribute on main shaft 13, cut at every turn and only have a tool bit as the stress point, have reduced the resistance, increase pressure, have promoted cutting efficiency. The four main shaft supporting bearing seats 20 are respectively arranged on two sides of the main shaft 13 in a group, the lower ends of the four main shaft supporting bearing seats 20 are respectively fixedly connected with the workbench 2, two sides of the main shaft 13 are respectively supported by the four main shaft supporting bearing seats 20, the main shaft 13 between the two main shaft supporting bearing seats 20 is respectively fixedly provided with a main shaft chain wheel group 40, and the main shaft chain wheel group 40 is respectively connected with the rotating chain wheel group 12 through chains 41.

The fixed cutter device comprises a plurality of fixed cutters 42, two fixed cutter guard plates 43, a fixed cutter fixing plate 44, a pressing plate 45, an upper cover plate 46 and a fixed cutter plate support 47, cutter heads are arranged at two ends of the fixed cutters 42 respectively, fixed clamping grooves 48 are arranged on the upper end surface and the lower end surface of the fixed cutters 42 respectively, and the distance between the cutter heads at two ends of the fixed cutters 42 and the fixed clamping grooves 48 is different. The fixed cutter fixing plate 44 is provided with a plurality of cutter head passing grooves 49 at the lower end thereof, fixed cutter clamping tables 50 are fixedly arranged on the upper end surfaces of the fixed cutter fixing plate 44 at the rear ends of the cutter head passing grooves 49, fixed cutter baffle plates 51 are respectively and fixedly arranged at the two sides of the upper end of the fixed cutter fixing plate 44, and a plurality of fixed cutter fixing screw holes 52 are respectively and correspondingly arranged on the side walls of the fixed cutter baffle plates 51, the two fixed cutter guard plates 43 and the plurality of fixed cutters 42. The plurality of fixed knives 42 are respectively arranged on the lower part of the fixed knife fixing plate 44 in the positive and negative directions in a non-repeated way, the positive and negative length settings of the plurality of fixed knives 42 are respectively matched with the plurality of knife heads through the grooves 49, the fixed clamping grooves 48 at the lower ends of the plurality of fixed knives 42 are respectively clamped on the fixed knife clamping tables 50, the plurality of fixed knives 42 can be used in a positive and negative exchange mode, the service life of the fixed knives 42 is prolonged, and the cost is reduced. When the rotor cutting device rotates, the plurality of main cutter heads 14 and the plurality of auxiliary cutter heads 16 are respectively matched with the concave-convex grooves which are arranged in the front and back length directions of the plurality of fixed cutters 42, so that a three-side cutting effect is achieved. The two fixed knife guard plates 43 are respectively arranged on two end faces of the plurality of fixed knives 42, fixed knife fixing screw rods 53 are respectively inserted into the fixed knife baffle plate 51, the two fixed knife guard plates 43 and a plurality of fixed knife fixing screw holes 52 on the side walls of the plurality of fixed knives 42, two ends of each fixed knife fixing screw rod 53 are fixed through nuts, and the plurality of fixing screw rods 53 between the fixed knife guard plates 43 and the fixed knife baffle plates 51 are respectively sleeved with nuts. The lower end face of the pressing plate 45 is fixedly provided with a positioning clamp table 54, the pressing plate 45 is buckled on the plurality of fixed knives 42, the positioning clamp tables 54 are respectively clamped in the fixing clamp grooves 48 at the upper ends of the plurality of fixed knives 42, the pressing plate 45 and the fixed knife fixing plate 44 are respectively and correspondingly provided with a plurality of fixing screw holes 55, the plurality of fixing screw holes 55 are respectively inserted with bolts 56, and the pressing plate 45 and the fixed knife fixing plate 44 are respectively fixedly connected through nuts sleeved at the upper ends and the lower ends of the plurality of bolts 56. The upper cover plate 46 is fixedly arranged on the upper end face of the pressing plate 45, and the upper cover plate 46 covers the pressing plate 45 to prevent materials from impacting the cutter bed assembly during feeding, so that the cutter bed is protected. The upper end of the fixed cutter plate bracket 47 is fixedly arranged on the lower end surface of the fixed cutter fixing plate 44, and the fixed cutter fixing plate 44 is perpendicular to the outer diameter tangent plane of the rotor cutting device and is fixed at an included angle of 25 degrees with the vertical direction. The lower end of the fixed cutter plate bracket 47 is fixedly connected with the workbench 2.

The feeding device comprises a feeding hopper 57, two hydraulic oil cylinders 58 and a hopper support 65, wherein turning shaft arms 60 are respectively arranged on two sides of the lower end of the feeding hopper 57, the turning shaft arms 60 are respectively connected with the hopper support 65 through turning pin shafts 61, and the lower end of the hopper support 65 is fixedly connected with a fixed workbench 2. The two hydraulic oil cylinders 58 are respectively arranged in the hopper bracket 65, the lower ends of the two hydraulic oil cylinders 58 are respectively connected with the hopper bracket 65 through pin shafts 62, the upper ends of the two hydraulic oil cylinders 58 are respectively connected with a tipping bucket support arm 64 at the lower end of the upper hopper 57 through a supporting pin shaft 63, and the hydraulic pumps of the two hydraulic oil cylinders 58 are respectively connected with a controller of the switch control cabinet 3 through wires.

Claims

1. A waste steel cutting crusher comprises a base (1), a workbench (2), a switch control cabinet (3), a driving device, a rotor cutting device, a fixed cutter device and a feeding device, and is characterized in that the lower end of the base (1) is fixedly arranged on the ground, and the workbench (2) is fixedly arranged on the upper end surface of the base (1); the switch control cabinet (3) is fixedly arranged on the upper end surface of one side of the workbench (2), and a steel bar grain funnel (4) is fixedly arranged in the middle of the workbench (2);

the driving device comprises two motors (5), two speed reducers (6), a plurality of V-belts (7) and four supporting bearing seats (8), wherein the two motors (5) are respectively and correspondingly fixedly arranged on the upper end surfaces of the two sides of the workbench (2), the two speed reducers (6) are respectively arranged in parallel with the two motors (5), and the lower ends of the two speed reducers are respectively and fixedly arranged on the upper end surface of the workbench (2); the two motors (5) are respectively connected with a controller of the switch control cabinet (3) through leads, output belt pulleys (9) are respectively and fixedly sleeved on output shafts of the two motors (5), and input belt pulleys (10) are respectively and fixedly sleeved on input shafts of the two speed reducers (6); the triangular belts (7) are respectively sleeved on the output belt pulley (9) and the input belt pulley (10) in a close fit manner; the four supporting bearing seats (8) are respectively arranged at the corresponding positions of the output shafts (11) of the two speed reducers (6) in parallel according to a group of two, the lower ends of the four supporting bearing seats (8) are respectively and fixedly arranged on the upper end surface of the workbench (2), the output shafts (11) of the two speed reducers (6) are respectively supported by the supporting bearing seats (8), and the output shafts (11) between the two supporting bearing seats (8) are respectively and fixedly sleeved with a rotating chain wheel group (12);

the rotor cutting device comprises a main shaft (13), a plurality of main cutter heads (14), a plurality of main cutter heads (15), a plurality of auxiliary cutter heads (16), a plurality of auxiliary cutter heads (17), two end face spacer bushes (18), two positioning locking baffle rings (19) and four main shaft supporting bearing seats (20), wherein the middle part of the main shaft (13) is in a hexagonal shape (21), and a single key groove (22) is concavely arranged on one side end face of the hexagonal shape (21); the side walls of the main cutterheads (15), the auxiliary cutterheads (17) and the two end face spacers (18) are respectively and correspondingly provided with a plurality of screw holes (23), inner hexagonal sleeve holes (24) are respectively formed in the middles of the main cutterheads (15), the auxiliary cutterheads (17) and the two end face spacers (18), and one side wall of each inner hexagonal sleeve hole (24) is respectively provided with a single-key jack (25) in a concave mode; the main cutterheads (15) and the auxiliary cutterheads (17) are not repeatedly arranged and tightly sleeved on the hexagonal shape (21) of the main shaft (13), two end face spacer bushes (18) are arranged at two ends of the main cutterheads (15) and the auxiliary cutterheads (17) respectively and sleeved on the hexagonal shape (21) of the main shaft (13), the single key grooves (22) and the single key jacks (25) are correspondingly arranged, and positioning keys (26) are fixedly inserted in the single key grooves (22) and the single key jacks (25) respectively; the cutter head fixing screws (27) are transversely inserted through the plurality of main cutter heads (15), the plurality of auxiliary cutter heads (17) and the plurality of screw holes (23) on the two end face spacer bushes (18), and two ends of the cutter head fixing screws (27) are fixed through nuts respectively; the two positioning locking baffle rings (19) are respectively arranged at the outer ends of the two end face spacer sleeves (18), and the two positioning locking baffle rings (19) are respectively in threaded connection with the main shaft (13); a plurality of main cutter fixing seats (28) are respectively arranged on the periphery of the plurality of main cutter heads (15), the main cutter fixing seats (28) on the plurality of main cutter heads (15) are respectively arranged in a spiral manner, main cutter fixing bosses (29) are convexly arranged on the main cutter fixing seats (28), and more than two main cutter fixing screw holes (30) are respectively arranged on the main cutter fixing bosses (29); the rear end faces of the main cutter heads (14) are respectively provided with a main cutter fixing groove (31), more than two main cutter screw holes (32) are arranged on the main cutter fixing grooves (31) and the front end faces of the main cutter heads (14) in a penetrating manner, the main cutter heads (14) are respectively arranged on a plurality of main cutter fixing seats (28), the main cutter fixing grooves (31) are respectively clamped on the main cutter fixing bosses (29), and main cutter bolts (33) are respectively fixedly arranged in the main cutter screw holes (32) and the main cutter fixing screw holes (30); a plurality of auxiliary cutter fixing seats (34) are respectively arranged on the periphery of the plurality of auxiliary cutter heads (17), the auxiliary cutter fixing seats (34) on the plurality of auxiliary cutter heads (17) are respectively spirally arranged with the main cutter fixing seats (28) on the plurality of main cutter heads (15) in a same line, auxiliary cutter fixing bosses (35) are convexly arranged on the auxiliary cutter fixing seats (34), and auxiliary cutter fixing screw holes (36) are arranged on the auxiliary cutter fixing bosses (35); auxiliary cutter fixing grooves (37) are respectively formed in the rear end faces of the auxiliary cutter heads (16), auxiliary cutter screw holes (38) are formed in the auxiliary cutter fixing grooves (37) and the front end faces of the auxiliary cutter heads (16) in a penetrating mode, the auxiliary cutter heads (16) are respectively installed on the auxiliary cutter fixing seats (34), the auxiliary cutter fixing grooves (37) are respectively clamped on the auxiliary cutter fixing bosses (35), and auxiliary cutter bolts (39) are respectively fixedly arranged in the auxiliary cutter screw holes (38) and the auxiliary cutter fixing screw holes (36); the four main shaft supporting bearing seats (20) are respectively arranged on two sides of the main shaft (13) in a group of two, the lower ends of the four main shaft supporting bearing seats (20) are respectively fixedly connected with the workbench (2), two sides of the main shaft (13) are respectively supported by the four main shaft supporting bearing seats (20), a main shaft chain wheel group (40) is respectively fixedly arranged on the main shaft (13) between the two main shaft supporting bearing seats (20), and the main shaft chain wheel group (40) is respectively connected with the rotating chain wheel group (12) through a chain (41);

the fixed cutter device comprises a plurality of fixed cutters (42), two fixed cutter guard plates (43), a fixed cutter fixing plate (44), a pressing plate (45), an upper cover plate (46) and a fixed cutter plate support (47), wherein cutter heads are respectively arranged at two ends of the fixed cutters (42), fixed clamping grooves (48) are respectively arranged on the upper end surface and the lower end surface of the fixed cutters (42), and the distances between the cutter heads at two ends of the fixed cutters (42) and the fixed clamping grooves (48) are different; a plurality of tool bit passing grooves (49) are concavely arranged at the lower end of the fixed tool fixing plate (44), fixed tool clamping tables (50) are fixedly arranged at the rear ends of the tool bit passing grooves (49) and positioned on the upper end surface of the fixed tool fixing plate (44), fixed tool baffles (51) are fixedly arranged on two sides of the upper end of the fixed tool fixing plate (44) respectively, and a plurality of fixed tool fixing screw holes (52) are correspondingly arranged on the side walls of the fixed tool baffles (51), the two fixed tool guard plates (43) and the plurality of fixed tools (42) respectively; the fixed cutters (42) are respectively arranged on the lower portion of the fixed cutter fixing plate (44) in the positive and negative directions in a non-repeated mode, concave-convex grooves formed in the positive and negative lengths of the fixed cutters (42) are respectively matched with the cutter head through grooves (49), fixing clamping grooves (48) at the lower ends of the fixed cutters (42) are respectively clamped on the fixed cutter clamping table (50), and a plurality of main cutter heads (14) and a plurality of auxiliary cutter heads (16) of the rotor cutting device are respectively matched with the concave-convex grooves formed in the positive and negative lengths of the fixed cutters (42); the two fixed knife guard plates (43) are respectively arranged on two end faces of the fixed knives (42), fixed knife fixing screws (53) are respectively inserted into the fixed knife baffle (51), the two fixed knife guard plates (43) and the fixed knife fixing screw holes (52) on the side walls of the fixed knives (42), two ends of each fixed knife fixing screw (53) are fixed through nuts, and the nuts are respectively sleeved on the fixed screws (53) between the fixed knife guard plates (43) and the fixed knife baffle (51); the lower end face of the pressing plate (45) is fixedly provided with a positioning clamping table (54), the pressing plate (45) is buckled on the plurality of fixed knives (42), the positioning clamping table (54) is respectively clamped in a fixing clamping groove (48) at the upper ends of the plurality of fixed knives (42), the pressing plate (45) and the fixed knife fixing plate (44) are respectively and correspondingly provided with a plurality of fixing screw holes (55), bolts (56) are respectively inserted in the plurality of fixing screw holes (55), and the pressing plate (45) and the fixed knife fixing plate (44) are respectively and fixedly connected through nuts sleeved at the upper end and the lower end of the plurality of bolts (56); the upper cover plate (46) is fixedly arranged on the upper end surface of the pressure plate (45); the upper end of the fixed cutter plate bracket (47) is fixedly arranged on the lower end surface of the fixed cutter fixing plate (44), the fixed cutter fixing plate (44) is perpendicular to the outer meridian section of the rotor cutting device and is fixed at an included angle of 25 degrees with the vertical direction, and the lower end of the fixed cutter plate bracket (47) is fixedly connected with the workbench (2);

the feeding device comprises a feeding hopper (57), two hydraulic oil cylinders (58) and a hopper support (65), wherein turning shaft arms (60) are respectively arranged on two sides of the lower end of the feeding hopper (57), the turning shaft arms (60) are respectively connected with the hopper support (65) through turning pin shafts (61), and the lower end of the hopper support (65) is fixedly connected with a workbench (2); the two hydraulic oil cylinders (58) are respectively arranged in the hopper support (65), the lower ends of the two hydraulic oil cylinders (58) are respectively connected with the hopper support (65) through pin shafts (62), the upper ends of the two hydraulic oil cylinders (58) are respectively connected with a tipping bucket support arm (64) at the lower end of the feeding hopper (57) through supporting pin shafts (63), and the hydraulic pumps of the two hydraulic oil cylinders (58) are respectively connected with a controller of the switch control cabinet (3) through wires.

2. The waste steel cutting crusher according to claim 1, wherein four main cutter holders (28) are respectively disposed on the periphery of a plurality of main cutter discs (15) of the rotor cutting device, and the main cutter holders (28) on the plurality of main cutter discs (15) are respectively arranged spirally on the main shaft (13); four auxiliary cutter fixing seats (34) are respectively arranged on the periphery of the auxiliary cutter heads (17), and the auxiliary cutter fixing seats (34) on the auxiliary cutter heads (17) are respectively spirally arranged with the main cutter fixing seats (28) on the main cutter heads (15) in a same line.

3. The waste steel cutting crusher according to claim 1, wherein the main cutters (14) are a left main cutter and a right main cutter respectively, the wall of the arc-shaped groove (59) of the left main cutter is an inclined wall with the left side wall being 10-15 degrees higher than the right side wall, the wall of the arc-shaped groove (59) of the right main cutter is an inclined wall with the right side wall being 10-15 degrees higher than the left side wall, and the main cutters (14) are respectively fixedly arranged on the main cutter fixing seats (28) of each main cutter (15) according to different non-repeated arrangement of the angles of the arc-shaped grooves (59) of the left main cutter and the right main cutter.

4. The waste steel cutting crusher according to claim 1, characterized in that the plurality of auxiliary cutter heads (16) are a left auxiliary cutter head and a right auxiliary cutter head respectively, the front end face of the left auxiliary cutter head is an inclined face with the left side higher than the right side by 10-15 degrees, the front end face of the right auxiliary cutter head is an inclined face with the right side higher than the left side by 10-15 degrees, and the plurality of auxiliary cutter heads (16) are fixedly arranged on the auxiliary cutter fixing seats (34) of each auxiliary cutter head (17) respectively according to different non-repeated arrangement of the angles of the inclined faces of the left auxiliary cutter head and the right auxiliary cutter head.