阅读说明：本技术 一种偏心辊式破碎机 (Eccentric roller type crusher ) 是由 周作护 于 2021-08-06 设计创作，主要内容包括：本发明公开了一种偏心辊式破碎机,包括设置有进料斗的箱体、安装在箱体内形成破碎腔和排矿口的偏心辊和活动的定颚装置、驱动所述定颚装置相对所述偏心辊平行移动改变所述破碎腔大小和排矿口间隙的调节装置。本发明由于采用调节装置驱动定颚装置相对偏心辊平行移动调整破碎腔的大小,不改变破碎钳口角度,既可调整物料对偏心辊和定颚装置造成的磨损后的排矿口间隙,破碎效率高；又能当给料超过规定的粒度卡住破碎腔口时,非常便捷地通过调节装置继续进行破碎,从而避免因卡机而停机给生产线造成的损失。同时具备不可破碎料块通过破碎腔时使得定颚装置过载退缩的功能,达到设备安全保护的目的。(The invention discloses an eccentric roller type crusher, which comprises a box body provided with a feed hopper, an eccentric roller and a movable jaw fixing device, wherein the eccentric roller and the movable jaw fixing device are arranged in the box body to form a crushing cavity and an ore discharge opening, and an adjusting device is used for driving the jaw fixing device to move in parallel relative to the eccentric roller to change the size of the crushing cavity and the gap of the ore discharge opening. The adjusting device is adopted to drive the jaw fixing device to move in parallel relative to the eccentric roller to adjust the size of the crushing cavity, the angle of the crushing jaw is not changed, the gap of the ore discharge port, which is abraded by materials to the eccentric roller and the jaw fixing device, can be adjusted, and the crushing efficiency is high; when the feeding exceeds the specified granularity and the crushing cavity opening is blocked, the crushing is carried out continuously through the adjusting device very conveniently, so that the loss of the production line caused by the halt of the machine due to the blocking is avoided. And meanwhile, the function of overload retraction of the jaw fixing device when a non-crushable material block passes through the crushing cavity is achieved, and the purpose of equipment safety protection is achieved.)

1. An eccentric roller crusher comprises a box body provided with a feed hopper, an eccentric roller and a movable jaw fixing device, wherein the eccentric roller and the movable jaw fixing device are arranged in the box body to form a crushing cavity and a mine discharge opening, the jaw fixing device is driven to move in parallel relative to the eccentric roller to change the size of the crushing cavity and the gap of the mine discharge opening, and the diameter of the eccentric roller is 300-3000 mm.

2. An eccentric roller crusher according to claim 1, characterized in that said adjusting means comprise at least one hydraulic cylinder controlled by a PLC control system provided on said box and connected to said jaw positioning means.

3. An eccentric roller crusher according to claim 1 or 2, characterized in that a guide member is provided between said jaw defining means and said box, said jaw defining means being movable relative to said box by means of said guide member.

4. An eccentric roller crusher according to claim 3, characterized in that said guide member comprises a guide rod provided on said housing and a slide cooperating with said guide rod provided on said jaw defining means, or said slide is fixed to said housing, said guide rod being provided on said jaw defining means and cooperating with said slide.

5. The eccentric roller type crusher according to claim 1, wherein the feed hopper comprises a bottom plate with a swingable lower portion, bottom plate adjusting mechanisms arranged on both sides for adjusting the swing amplitude of the bottom plate, and a material blocking plate movably fixed on the lower portion of the bottom plate through an elastic mechanism and engaged with the top of the eccentric roller, and the material in the feed hopper enters the crushing chamber through the material blocking plate.

6. The eccentric roller crusher according to claim 5, wherein said bottom plate adjusting mechanism comprises a hinge shaft having both ends positioned in the arc-shaped guide grooves on both sides of the hopper and hinged to the bottom surface of the bottom plate, and a screw rod movably fitted over both ends of the hinge shaft and movably mounted to screw rod seats on both sides of the hopper through nuts.

7. The eccentric roller crusher according to claim 5 or 6, wherein said elastic means comprises a screw passing through said striker plate and said bottom plate, a spring fitted over said screw from the bottom surface of said bottom plate and secured by a nut.

8. The eccentric roller crusher according to claim 1, wherein said jaw fixing means comprises a jaw fixing frame and an arc-shaped jaw plate provided on the jaw fixing frame, and a discharge opening corresponding to said discharge opening is provided at the bottom of said housing.

9. An eccentric roller crusher according to claim 1, characterized in that a base is connected to the underside of said box, and a damping device is provided under the base.

10. The eccentric roller crusher according to claim 9, wherein said base is provided at one end thereof with a driving motor, said eccentric roller is formed by a roller drum mounted on a driving shaft having an eccentricity, the driving shaft is fixed to the housing through a bearing housing, the driving shaft is provided at one end thereof with a pulley and at the other end thereof with a flywheel, and the driving motor is connected to the pulley on the driving shaft through a belt.

Technical Field

The invention belongs to ore crushing equipment, and particularly relates to an eccentric roller type crusher.

Background

The working principle of the existing eccentric roller crusher is that when an eccentric rotor rotates, an outer arc surface periodically approaches to an inner arc surface of a fixed jaw arc crushing wall to form a variable crushing cavity and an ore discharge opening of the crushing cavity, so that ore is crushed and crushed. In order to produce products of different particle sizes from large ores and to pass some uncrushable lumps through the crushing chamber enough to protect the safety of the apparatus, such crushers all use a rocker arm adjustment device to adjust the gap of the discharge opening. Because the arc-shaped protection plate installed on the wall of the crushing cavity is worn in the production process, in order to keep the gap of the ore discharge port to reach the required product granularity, the adjusting device reduces the gap of the ore discharge port through the swinging of the rocker arm to achieve the aim, so that the arc-shaped crushing jaw angle formed by the rocker arm (fixed jaw) and the eccentric roller cannot be stable, and inevitably becomes large. The arc-shaped crushing jaw angle formed by the rocker arm (fixed jaw) and the eccentric roller in the crushing cavity is a key technology for determining the particle size and the crushing efficiency of the fed materials of various types of equipment, and if the jaw angle is changed, the situation that the crushed materials spit (fly) upwards in the crushing cavity is caused, the particle size and the crushing efficiency of the fed materials are greatly reduced, and the safety problem is possibly caused.

Disclosure of Invention

The invention aims to provide an eccentric roller type crusher which can conveniently adjust the size of a crushing cavity and a mine discharge opening of the crushing cavity without changing the angle of a jaw of the crusher.

The technical scheme adopted for realizing the purpose of the invention is as follows:

the invention provides an eccentric roller crusher, which comprises a box body provided with a feed hopper, an eccentric roller and a movable jaw fixing device, wherein the eccentric roller and the movable jaw fixing device are arranged in the box body to form a crushing cavity and an ore discharge opening, the adjusting device is used for driving the jaw fixing device to move in parallel relative to the eccentric roller to change the size of the crushing cavity and the gap of the ore discharge opening, and the diameter of the eccentric roller is 300-3000 mm.

The adjusting device comprises at least one hydraulic cylinder which is arranged on the box body and connected with the jaw fixing device and is controlled by a PLC control system.

A guide part is arranged between the jaw fixing device and the box body, and the jaw fixing device moves relative to the box body through the guide part.

The guide part comprises a guide rod arranged on the box body and a sliding block which is arranged on the fixed jaw device and matched with the guide rod, or the sliding block is fixed on the box body, and the guide rod is arranged on the fixed jaw device and matched with the sliding block.

The feeder hopper includes the wobbling bottom plate in lower part, establish both sides be used for adjusting the bottom plate adjustment mechanism of bottom plate amplitude of oscillation, through elastic mechanism activity fix the bottom plate lower part with eccentric roller top complex striker plate, the material in the feeder hopper passes through the striker plate and gets into broken chamber.

The bottom plate adjusting mechanism comprises a hinge shaft and a screw rod, wherein the two ends of the hinge shaft are positioned in arc-shaped guide grooves on the two sides of the feed hopper and hinged to the bottom surface of the bottom plate, the screw rod is movably sleeved at the two ends of the hinge shaft and movably installed on screw rod seats on the two sides of the hopper through nuts.

The elastic mechanism comprises a screw rod penetrating through the material baffle plate and the bottom plate and a spring sleeved on the screw rod through the bottom surface of the bottom plate and fixed by a nut.

The fixed jaw device comprises a fixed jaw frame and an arc-shaped jaw plate arranged on the jaw frame, and a discharge opening corresponding to the ore discharge opening is formed in the bottom of the box body.

The base is connected below the box body, and the damping device is arranged below the base.

The one end of base is equipped with driving motor, eccentric roller is installed on having eccentric drive shaft and forms by the roller, and the drive shaft passes through the bearing frame to be fixed on the box, and the one end of drive shaft is equipped with the belt pulley, and the other end is equipped with the flywheel, and driving motor passes through the belt and is connected with the belt pulley of drive epaxial.

Advantageous effects

The main advantages of the invention are as follows:

1. researches show that the angle of the arc-shaped jaw crushing cavity determines the feeding granularity of the material, and the angle of each extrusion crushing point is different; when the feeding exceeds the specified granularity and the crushing cavity opening is blocked, the crushing is carried out continuously through the adjusting device very conveniently, so that the loss of the production line caused by the halt of the machine due to the blocking is avoided.

2. The adjusting device adopts a hydraulic cylinder 13 controlled by a PLC control system, and has the function of enabling the jaw fixing device to overload and retract when an uncrushable material block passes through the crushing cavity, so that the purpose of equipment safety protection is achieved.

3. The invention can adapt to the working conditions of coarse crushing and medium fine crushing in the field of ore crushing, has multiple functions, can completely replace the traditional complex process flow from first crushing, second crushing to fine crushing, greatly saves the investment and the field of a production line, and effectively reduces the production cost.

The technical scheme of the invention is further explained by combining the attached drawings.

Drawings

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

Fig. 2 is a schematic view of the internal structure of embodiment 1 of the present invention.

Fig. 3 is a schematic structural view of a jaw fixing device according to embodiment 1 of the present invention.

FIG. 4 is a schematic view of the feed hopper in example 1 of the present invention.

FIG. 5 is a schematic view of the structure of the feed hopper in different directions in example 1 of the present invention.

Fig. 6 is a schematic structural view of the retainer plate and the eccentric roller in embodiment 1 of the present invention.

Fig. 7 is a schematic structural diagram of another striker plate and eccentric roller in embodiment 1 of the present invention.

Fig. 8 is a schematic diagram of the working principle of the present invention.

Fig. 9 is a schematic structural view of embodiment 2 of the present invention.

Fig. 10 is a schematic structural view of embodiment 3 of the present invention.

Fig. 11 is a schematic structural view of a jaw fixing device according to embodiment 3 of the present invention.

Detailed Description

Example 1

Referring to fig. 1-5, the eccentric roller crusher provided by the invention comprises a box body 7 provided with a feed hopper 9, an eccentric roller 21 and a movable jaw fixing device 12 which are arranged in the box body 7 to form a crushing cavity 17 and a mine discharge opening 1701, and an adjusting device for driving the jaw fixing device 12 to move in parallel relative to the eccentric roller 21 to change the size of the crushing cavity 17 and the gap of the mine discharge opening 1701, wherein the diameter of the eccentric roller is 300-3000 mm; the adjusting device comprises at least one hydraulic cylinder 13 which is arranged between the box body 7 and the jaw fixing device 12 and is controlled by a PLC control system; a guide part is arranged between the jaw fixing device 12 and the box body 7, and the jaw fixing device 12 moves relative to the box body 7 through the guide of the guide part; the guide part comprises a guide rod 5 arranged on the box body 7 and a slide block 4 which is arranged on the jaw fixing device 12 and matched with the guide rod 5.

The more specific structure of the invention is as follows:

referring to fig. 1-3, the jaw fixing device 12 comprises a jaw fixing frame 1202 and an arc-shaped jaw plate 1201 arranged on the jaw fixing frame 1202, and the bottom of the box body 7 is provided with a discharge opening 18 corresponding to the crushing cavity 17; the slide block 4 is fixed on a fixed jaw frame 1202 of the fixed jaw device 12, and one side of each guide rod 5 is fixed on the box body 7 through a guide rod seat 3; the crushing chamber 17 is formed by two side walls of the box 7, the rear part of the eccentric roller 21 and the arc-shaped jaw plate 1201 of the fixed jaw device 12.

Referring to fig. 1, a base 20 is connected to the periphery of the lower surface of the box body 7, and a damping device 1 is arranged below the base 20; the damping device 1 is arranged, so that the influence on equipment caused by vibration during working can be avoided, the service life is prolonged, and the noise is reduced.

Referring to fig. 1 and 2, the hydraulic cylinder 13 is fixed between the box body 7 and a fixed jaw frame 1202 of the fixed jaw device 12; the said base 20 has a driving motor 2 at one end, the said eccentric roller 21 is formed by installing the roller 16 on the driving shaft 15 with eccentricity, the driving shaft 15 is fixed on the box 7 through the bearing bracket, one end of the driving shaft 15 has belt pulley 11, another end has flywheel 6, the driving motor 2 is connected with belt pulley 11 on the driving shaft 15 through the belt 14.

Referring to fig. 1 and 2, the feed hopper 9 includes a bottom plate 901 with a swingable lower portion, bottom plate adjusting mechanisms 8 arranged on both sides for adjusting the swing amplitude of the bottom plate 901, and a baffle plate 10 movably fixed on the lower portion of the bottom plate 901 through an elastic mechanism and engaged with the top of the eccentric roller 21, and the material in the feed hopper 9 enters the crushing cavity 17 through the baffle plate 10.

Referring to fig. 4, the bottom surface of the upper part of the bottom plate 901 is hinged to a hinge shaft 903 fixed to both sides of the hopper 9 by hinge lugs 902, and the bottom plate 901 can swing up and down around the hinge shaft 903.

Referring to fig. 1, 2, 4 and 5, the bottom plate adjusting mechanism 8 includes a hinge shaft 801 with two ends located in arc-shaped guide slots 904 on two sides of the feed hopper 9 and hinged to the bottom surface of the bottom plate 901, a screw rod 803 movably sleeved on two ends of the hinge shaft 801 and movably mounted on screw rod seats 905 on two sides of the hopper 9 through nuts 802, and the bottom plate 901 is matched with the hinge shaft 801 through a hinge lug 804; the elastic mechanism comprises a screw 908 penetrating through the striker plate 10 and the bottom plate 901, and a spring 906 sleeved on the screw 908 from the bottom surface of the bottom plate 901 and fixed by a nut 907; after the bottom plate 901 is adjusted and the nut 802 is unscrewed, the up-and-down position of the screw 803 is adjusted to drive the hinge shaft 801 to move up and down along the arc-shaped guide groove 904 so as to drive the bottom plate 901 to swing up and down, so that the material blocking plate 10 on the bottom plate 901 is clung to the roller 16 of the eccentric roller 21 by overcoming the acting force of the spring 906 in the elastic mechanism, and then the nut 802 is screwed down; the striker plate 10 is used for ensuring that all materials enter the crushing cavity 17 and preventing the materials from reversely flowing into the non-crushing cavity 19 from the front of the eccentric roller 21 to influence the breakage rate.

Referring to fig. 6, grooves 1601 are arranged on the surface of the roller 16 of the eccentric roller 21, and the striker plate 10 is provided with comb teeth 1001 to match with the grooves 1601 on the roller 16; referring to fig. 7, the surface of the roller 16 may also be a smooth surface 1602, and the striker plate 10 is not provided with the comb teeth 1001 to press against the smooth surface 1602 of the roller 16.

The working principle is as follows: after the material W enters the feed hopper 9, the material W enters the crushing cavity 17 through the material baffle plate 10, under the driving of the driving motor 2, the driving shaft 15 drives the eccentric roller 21 to eccentrically rotate relative to the arc-shaped jaw plate 1201 of the jaw fixing device 12, so that the crushing cavity 17 between the eccentric roller and the jaw fixing device extrudes and crushes the material W in a periodically back-and-forth changing manner, and the crushed material W is discharged from the ore discharge opening 1701 and the discharge opening 18. Because the striker plate 10 is matched with the eccentric roller 16 through an elastic mechanism, the striker plate 10 can be ensured to be always tightly attached to the surface of the roller 16 despite the change of the surface position of the roller 16 of the eccentric roller 21. In order to compensate the abrasion of materials to the roller 16 and the arc-shaped jaw plate 1201, the hydraulic cylinder 13 of the adjusting device can drive the jaw fixing device 12 to move in parallel relative to the eccentric roller 21, the original sizes of the crushing cavity 19 and the ore discharge opening 1701 are kept, the angles a1 and a2 of the crushing jaws are not changed, the jaw fixing device 12 has the function of overloading and retracting when uncrushable materials pass through the crushing cavity 17, and the safety of the equipment can be protected. If the size of the crushed material W is to be changed, the jaw fixing device 12 can also be driven by the hydraulic cylinder 13 to move back and forth in parallel relative to the eccentric roller 21. After the surface of the roller 16 is abraded to a certain degree, the crushed material flows backwards towards the non-crushing cavity, the bottom plate 901 can be downwards adjusted through the bottom plate adjusting mechanism 8, so that the material baffle plate 10 is kept close to the roller surface, and the purpose of preventing the material from flowing backwards is achieved.

Example 2

The invention can also arrange two hydraulic cylinders 13 between the frame 7 and the fixed jaw frame 1202 of the fixed jaw device 12, and a guide rod 5 arranged on the box body 7 through a guide rod seat 3 is matched with a slide block 4 fixed on the fixed jaw frame 1202, as shown in fig. 9.

Example 3

The sliding block 4 can also be fixed on the box body 7, and the guide rod 5 is arranged on the fixed jaw frame 1202 by an upper and a lower two to be matched with the sliding block 4, as shown in fig. 10 and 11.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that it will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the principle of the present invention, and such modifications and improvements should also be considered within the scope of the present invention. The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.