CN214288411U - High-speed fine crushing double-roller machine - Google Patents

Abstract

The invention relates to the field of twin-roll mills, and discloses a high-speed fine crushing twin-roll mill which comprises a rack, wherein a crushing mechanism, a repairing mechanism and a driving mechanism are arranged on the rack, the crushing mechanism comprises a crusher shell and two crushing rolls which are rotatably connected in the crusher shell, the top end of the crusher shell is provided with a funnel-shaped feed hopper, each crushing roll comprises a roller, end covers which are detachably connected at two ends of the roller and crushing shafts which penetrate between the two end covers, an adjustable abutting component is arranged between the two end covers, and a distance adjusting component for adjusting the distance between the two crushing shafts is arranged between the two crushing shafts; the repairing mechanism comprises a guide rail arranged on the side part of the crushing roller along the axial direction of the crushing roller and a milling cutter component which is connected on the guide rail in a sliding way and can be contacted with the surface of the roller. The invention solves the problems of high replacement cost and large equipment investment in the prior art that the damaged surface is recovered by replacing the pair roller.

Description

High-speed fine crushing double-roller machine

Technical Field

The invention relates to the field of roller machines, in particular to a high-speed fine crushing roller machine.

Background

The green brick is also called green body or green body, which means that the pug is processed and formed into an intermediate product with certain shape, size and strength and can be used for sintering by means of external force and a model. The undried green body is called wet green body, the dried green body is called dry green body, and the brick is formed after being fired, and the green body is one of the most common and important consumables in the building field. The raw materials are often mixed in the pug of the adobe, and the pug and the mixture thereof are crushed, mixed and stirred before the adobe is made, which is usually completed by a pair of rollers.

When the roll-pair machine works, the left and right rollers rotate at high speed in opposite directions, and the left and right rollers have a rotation speed difference, so that raw materials such as clay, shale, limestone and the like for producing tiles are crushed by utilizing mutual extrusion friction and high-speed collision between the rollers and the raw materials, the plasticity and the mixing uniformity of the raw materials are improved, and the working surface of the roll-pair machine is extremely easy to erode and wear. Although the relative clearance of the pair of rolls is adjustable, the craters generated on the surfaces of the pair of rolls due to abrasion, collision and erosion cannot be adjusted, and the quality of the crushing cannot be ensured in severe cases. At present, when the surface of the counter roll is seriously abraded, the surface damage problem is usually solved by adopting a mode of replacing the counter roll, and although the problem of crushing quality caused by the uneven surface of the counter roll can be solved by adopting the mode, the replacement cost is overhigh, and the equipment maintenance investment is overlarge.

Disclosure of Invention

The invention aims to provide a high-speed fine crushing roller pair machine to solve the problems that in the prior art, a damaged surface is recovered by replacing a roller pair, the replacement cost is overhigh, and the equipment maintenance investment is overlarge.

In order to achieve the purpose, the invention adopts the following technical scheme: a high-speed crushing twin-roll machine comprises a rack, wherein a crushing mechanism, a repairing mechanism and a driving mechanism are arranged on the rack, the crushing mechanism comprises a crusher shell and two crushing rolls which are rotatably connected in the crusher shell, a funnel-shaped feed hopper is arranged at the top end of the crusher shell, each crushing roll comprises a roller, end covers which are detachably connected to two ends of the roller and crushing shafts which penetrate between the two end covers, an adjustable abutting component is arranged between the two end covers, and a distance adjusting component for adjusting the distance between the two crushing shafts is arranged between the two crushing shafts; the repairing mechanism comprises a guide rail arranged on the side part of the crushing roller along the axial direction of the crushing roller and a milling cutter component which is connected on the guide rail in a sliding way and can be contacted with the surface of the roller.

The principle and the advantages of the scheme are as follows: during practical application, among this technical scheme, the frame plays the effect that supports and guarantee the stable connection between each part of equipment, and crushing mechanism is used for carrying out crushing treatment to the raw materials, utilizes two crushing roller relative rotations promptly, realizes the roll-in breakage to the raw materials, and along with live time's extension, damage such as pit can appear in the surface of roller, and repair mechanism can restore damaged roll surface this moment. When restoreing the roll surface, the milling cutter subassembly slides along the guide rail (along roller axial displacement promptly), and at this moment, actuating mechanism can drive the roller and rotate, at roller rotation and milling cutter axial displacement's in-process, can carry out comprehensive milling restoration to the surface of roller, compares in the mode of the whole change crushing roller among the prior art, has reduced the input of equipment. After the roller is milled and repaired, the diameter of the roller surface can be reduced, the distance between the two roller surfaces can be changed, and at the moment, the distance between the two roller surfaces can be adjusted to the optimal distance range (0.3-0.5mm) through the distance adjusting assembly, so that the crushing effect of raw materials is ensured. After the roller is milled and repaired many times, the roller can be thinner and thinner, and the crushing roller needs to be replaced at the moment. In the prior art, usually, the connection mode between the crushing shaft and the roller is key connection, and although the key connection can ensure the connection stability, the key connection mode needs to knock out a flat key forcibly when the roller is replaced, so that the operation difficulty is very high. Among this technical scheme, when installing broken axle in the roller, utilize the regulation formula to advance subassembly and end cover progressively and realize compressing tightly fixedly to broken axle, when needing to be changed the roller, utilize the regulation formula to support tight subassembly and can take off it, convenient operation is laborsaving.

Preferably, as an improvement, the tight subassembly is supported to regulation formula wears to be equipped with fixed screw including setting up the wedge hole on the end cover between the wedge hole of two just right end covers, and fixed screw's both ends all overlap and are equipped with and to support the wedge of tightly in the wedge hole, are provided with the wedge on the wedge, and the wedge sets up towards the middle part slope of fixed screw, and the outside of wedge is provided with the tight nut that supports of threaded connection on fixed screw.

Among this technical scheme, when needs support the end cover tightly at the tip of roller, rotatory support tight nut makes its axial displacement along fixation screw, can make and support tight nut with the wedge along the downthehole promotion of fixation screw's axial wedge and support tightly, because the scarf sets up towards fixation screw's middle part slope, the inboard height of wedge is less than the outside height promptly, with the in-process that the wedge promoted in to the wedge, can make the wedge support tightly in the wedge to the realization compresses tightly end cover (broken axle) to fix on the roller, convenient operation.

Preferably, as an improvement, a gasket is arranged between the wedge-shaped block and the abutting nut, the gasket is sleeved on the fixed screw rod, one end of the gasket abuts against the abutting nut, and the other end of the gasket is in threaded connection with the side portion of the wedge-shaped block.

In the technical scheme, the distance between the gasket and the wedge-shaped block can be adjusted on one hand by connecting the gasket with the end part of the wedge-shaped block in a threaded manner, so that the end cover can be conveniently pressed and fixed, and after the distance is adjusted, the distance between the gasket and the wedge-shaped block can be fixed by utilizing the reverse fixing action of threaded connection; on the other hand, when the end cover needs to be detached from the roller, the wedge block can be rapidly withdrawn from the wedge hole through the gasket, and the operation is convenient.

Preferably, as an improvement, there is a 10% difference in rotational speed between the two crushing rolls.

In the technical scheme, the rotating speeds of the two crushing rollers are optimized, so that the optimal raw material crushing effect can be ensured.

Preferably, as an improvement, the distance adjusting assembly is used for adjusting the distance between the roll surfaces of the two rollers to 0.3-0.5mm, the distance adjusting assembly comprises an adjusting screw rod rotatably connected to the crusher shell, a connecting seat in threaded connection with the adjusting screw rod is sleeved on the adjusting screw rod, the connecting seat is slidably connected in the crusher shell, and the crushing shaft is rotatably connected to the connecting seat.

In the technical scheme, long-time application verification shows that when the distance between the two roller surfaces is 0.3-0.5mm, the optimal crushing effect of the raw materials can be ensured. After the pair roll surface is milled and repaired, the distance between the two rollers needs to be readjusted, at the moment, the adjusting screw rod is rotated, the adjusting screw rod rotates to drive the connecting seat in threaded connection with the adjusting screw rod to slide along the crusher shell, and then the crushing shaft is driven to move in the crusher shell, so that the adjustment of the position of the crushing shaft (the rollers) is realized, and in addition, when the position of the crushing shaft does not need to be moved, the connecting seat plays a role in supporting the crushing shaft, and the structural design is reasonable.

Preferably, as an improvement, the milling cutter assembly comprises a milling cutter seat slidably connected to the guide rail, a driving screw rod is rotatably connected to the crusher shell, the milling cutter seat is sleeved on the driving screw rod and is in threaded connection with the driving screw rod, and a milling cutter capable of contacting with the surface of the roller is mounted on the milling cutter seat.

In the technical scheme, when the roller surface is repaired, the driving screw rod rotates to drive the milling cutter seat in threaded connection with the driving screw rod to move along the guide rail, namely, the milling cutter seat moves along the axial direction of the roller, and the milling repair of the roller surface can be completed by combining the rotation of the roller.

Preferably, as an improvement, the driving mechanism comprises a driving motor arranged on the frame, a speed reduction motor is arranged on the side of the driving motor, a chain is connected between an output shaft of the driving motor and an output shaft of the speed reduction motor, and a driving belt is connected between the driving motor and the crushing shaft.

According to the technical scheme, when the roller crushes the raw materials, the roller needs to rotate at a high speed, the driving motor is a direct power source, and the roller is driven to rotate at a high speed through the driving belt; when restoreing the roller surface, the rotation that needs the roller slow speed relatively, this moment, gear motor is direct power supply, and driving motor is passive pivoted power transmission, and gear motor rotates at a slow speed, drives driving motor through the chain and rotates at a slow speed, and rethread driving band drives the roller and rotates at a slow speed to the realization is to the all-round restoration of milling of roller surface, and structural design is reasonable, and power switching is convenient.

Preferably, as an improvement, driving motor and gear motor all sliding connection are in the frame, and all can dismantle between driving motor, gear motor and the frame and be connected with the locating part.

In this technical scheme, after the roll surface is restoreed and is finished, need adjust the position of roller, the distance between roller and driving motor and the gear motor changes this moment, only need this moment with driving motor and gear motor along the frame slide can, can guarantee to be in the most suitable distance between driving motor, gear motor and the roller, realize the effective transmission of power.

Preferably, as an improvement, the crusher shell is rotatably connected with a rotating shaft, a mud scraper which can be abutted against the outer wall of the roller is axially fixed on the rotating shaft along the rotating shaft, and one end of the rotating shaft penetrates out of the side wall of the crusher shell and is connected with an adjustable limiting part.

In the technical scheme, the raw materials for roller crushing comprise clay, shale, limestone and the like, and when the raw materials are rolled and crushed, the raw materials are adhered to the surface of the roller due to certain adhesion, so that the subsequent crushing effect on the raw materials is influenced. The mud scraper is used for scraping the earth of adhesion on the roll surface, when using, the roller is at the rotation in-process, the roll surface is at the in-process with the mud scraper relative motion, the completion is scraped the process, restore the back at the roll surface, the distance between roll surface and the mud scraper can change, can appear the clearance between mud scraper and the roll surface this moment, rotate the pivot this moment, the pivot is rotated the mud scraper that can drive the rigid coupling with it and is rotated, the mud scraper is rotating the back, can offset with the surface of roller again, continue to scrape the mud operation, it is fixed to adjust the position that the locating part is used for the countershaft, guarantee that the pivot can carry out stable support to the mud scraper.

Preferably, as an improvement, regulation formula locating part includes the actuating arm with the coaxial rigid coupling of pivot, and the one end that the pivot was kept away from to the actuating arm is provided with the connecting hole, wears to be equipped with the screw thread post in the connecting hole, and the top threaded connection of screw thread post has fixation nut, and the bottom of screw thread post articulates in the frame.

Among this technical scheme, when the position of needs according to roll surface position adjustment mud scraper, operating personnel only need rotate the actuating arm, makes the mud scraper adjust suitable position, and then rotatory fixation nut makes fixation nut support and leans on the actuating arm, prescribes a limit to the position of actuating arm, and structural design is reasonable.

Drawings

FIG. 1 is a front view of a first embodiment of the high-speed fine crushing twin-roll mill of the present invention.

Fig. 2 is a schematic view of the end cap of fig. 1 according to the present invention.

FIG. 3 is a right side longitudinal sectional view of the roller and the end cap in the first embodiment of the invention.

Fig. 4 is an enlarged view at a1 in fig. 3.

FIG. 5 is a front view of a second embodiment of the high-speed crushing twin-roll mill of the invention.

Fig. 6 is an enlarged view at a2 in fig. 5.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the crusher comprises a frame 1, a crusher shell 2, a feed hopper 3, a roller 4, an end cover 5, a connecting seat 6, a crushing shaft 7, a fixed screw rod 8, a wedge-shaped block 9, a gasket 10, a tightening nut 11, an adjusting screw rod 12, a supporting table 13, a driving screw rod 14, a milling cutter seat 15, a milling cutter 16, a driving motor 17, a driving belt 18, a speed reducing motor 19, a chain 20, a rotating shaft 21, a mud scraping plate 22, a driving arm 23, a threaded column 24, a fixing nut 25 and a crushing wheel 26.

Example one

This embodiment is substantially as shown in figures 1-4 of the accompanying drawings: a high-speed fine crushing double-roller machine comprises a machine frame 1, wherein a crushing mechanism, a repairing mechanism and a driving mechanism are arranged on the machine frame 1.

Crushing mechanism is used for carrying out crushing treatment to the raw materials, and crushing mechanism includes through bolt fastening at the breaker casing 2 in frame 1, and the top of breaker casing 2 is provided with hopper-shaped feeder hopper 3. Two crushing rolls are rotatably connected in the crusher shell 2, and a rotation speed difference of 10% exists between the two crushing rolls. Combine fig. 2, fig. 3 to show, the crushing roller all includes roller 4, and all detachable connection in the both ends of roller 4 has end cover 5, and the outside of end cover 5 all is connected with the connecting seat 6 of square through the bearing, wears to be equipped with broken axle 7 between two connecting seats 6, is connected through the bearing between broken axle 7 and the connecting seat 6, and the key-type connection between broken axle 7 and the end cover 5. The adjusting type abutting assembly is arranged between the roller 4 and the two end covers 5 and comprises five fixing screw rods 8 arranged between the two end covers 5 in a penetrating mode, and the five fixing screw rods 8 are evenly distributed in the circumferential direction of the end covers 5. As shown in fig. 4, the two ends of the fixing screw 8 are both sleeved with the wedge blocks 9, the upper end surfaces of the wedge blocks 9 are arc-shaped, the lower end surfaces are wedge surfaces, and the wedge surfaces are inclined toward the middle of the fixing screw 8, that is, the size of the wedge blocks 9 located on the inner side is smaller than that of the outer side. The outside of wedge 9 all has threaded connection to have gasket 10, and the one end that wedge 9 was kept away from to gasket 10 is oblate, and the outside of gasket 10 is provided with the tight nut 11 of support of threaded connection on stationary screw 8. When the wedge block 9 is matched with the wedge hole, the boundary line of the end cover 5 and the roller 4 is positioned at one end of the wedge block 9 close to the wedge surface (below the boundary position of the arc surface and the wedge surface on the wedge block 9) so as to avoid the relative displacement of the end cover 5 and the roller 4.

A distance adjusting assembly is arranged between the two crushing shafts 7 and used for adjusting the distance between the roll surfaces of the two rollers 4 to 0.3-0.5mm, the distance adjusting assembly comprises adjusting screw rods 12 which are rotatably connected in the crusher shell 2, the two adjusting screw rods 12 are parallel to each other, and the adjusting screw rods 12 are perpendicular to the crushing shafts 7. The connecting seats 6 at two ends of one crushing shaft 7 are clamped in the crusher shell 2 and fixed through bolts; connecting seats 6 at two ends of the other crushing shaft 7 are respectively sleeved on the adjusting screw rods 12 and are in threaded connection with the adjusting screw rods 12, and the bottom ends of the connecting seats 6 are all connected into the crusher shell 2 in a sliding mode.

Repair body is used for milling the restoration to damaged roll surface, repair body includes supporting bench 13 of sliding connection in frame 1 and can follow the gliding milling cutter 16 subassembly of supporting bench 13, be connected with the bolt between supporting bench 13 and the frame 1, supporting bench 13 is located the lateral part of roller 4, and there are two guide rails through the bolt fastening on supporting bench 13, two deflector rolls are parallel to each other and along roller 4 axial setting, be provided with between two guide rails and rotate the drive screw 14 of connection on supporting bench 13, and install through the bolt on supporting bench 13 and be used for driving drive screw 14 pivoted servo motor. The milling cutter 16 assembly comprises a milling cutter seat 15 which is sleeved on the driving screw rod 14 and is in threaded connection with the driving screw rod 14, and a milling cutter 16 which is arranged on the milling cutter seat 15 and can be in contact with the roller surface (the installation and the use of the milling cutter 16 are the prior art), wherein the milling cutter seat 15 is in sliding connection between two guide rails.

The driving mechanism comprises a driving motor 17 connected to the rack 1 in a sliding manner, the sliding direction of the driving motor 17 is perpendicular to the axial direction of the roller 4, and a bolt is connected between the driving motor 17 and the rack 1; the end of the crushing shaft 7 penetrates through the side wall of the crusher shell 2 and is coaxially and fixedly connected with a crushing wheel 26, a driving belt 18 is connected between the output shaft of the driving motor 17 and the crushing wheel 26, and a rotation speed difference of 10% exists between the two driving motors 17. A speed reducing motor 19 connected to the frame 1 in a sliding manner is arranged on the side of the driving motor 17, the sliding direction of the speed reducing motor 19 is the same as that of the driving motor 17, a bolt is connected between the speed reducing motor 19 and the frame 1, and a chain 20 is connected between the output shaft of the speed reducing motor 19 and the output shaft of the driving motor 17.

The specific implementation process is as follows: before the installation of twin-roll machine, need link together roller 4 and the end cover 5 that is connected with broken axle 7, it is concrete, two end covers 5 support respectively and lean on the both ends at roller 4, make two end covers 5 just make the juncture on end cover 5 and the roller 4 form the structure of wedge hole, then wear to establish lead screw 8 between just right two wedge holes, establish the both ends at lead screw 8 with wedge 9 respectively, make wedge 9 hold in the wedge hole, the arc surface of wedge 9 holds downtheholely at the semicircular of roller 4 this moment, the wedge surface of wedge 9 cooperates with the wedge hole on the end cover 5. The gasket 10 is in threaded connection with the outer end of the wedge-shaped block 9, and the adjustment of the gap distance can be realized by controlling the threaded connection position of the gasket 10 and the wedge-shaped block 9. Then, an operator sleeves the abutting nut 11 on the fixed screw rod 8 and rotates the abutting nut 11, at the moment, the abutting nut 11 can move along the axial direction of the fixed screw rod 8 to push the gasket 10 to the middle of the roller 4, and the gasket 10 can drive the wedge block 9 to move towards the inner side of the wedge hole to abut tightly, so that abutting fixation of the end cover 5 on one side is completed. And repeating the operation to complete the installation of the other four fixing screw rods 8 and the abutting fixation of the end cover 5 at the other side.

And then the fixed connecting seat 6 is installed in the crusher shell 2, so that the adjusting screw rod 12 is arranged in the connecting seat 6 at the right end in a penetrating manner, and the assembly of the two rollers 4 is completed (the operation is the prior art). Then will connect driving motor 17 and crushing wheel 26 through driving band 18, will treat that the broken raw materials from feeder hopper 3 feeding, start driving motor 17, driving motor 17 drives crushing wheel 26 through driving band 18 and rotates, and then drives roller 4 and rotate, because there is 10% rotational speed difference between two rollers 4, the differential motion of two rollers 4 can roll the breakage to the raw materials this moment.

Along with the extension of service life, the surface of roller 4 can appear pit etc. damage, need repair the roller face this moment, when repairing the roller face, need roller 4 slow rotating, connect chain 20 between the output shaft of driving motor 17 and the output shaft of gear motor 19 this moment, close driving motor 17, start gear motor 19, gear motor 19 is the direct power source this moment, driving motor 17 is the power transmission device of passive operation. The speed reducing motor 19 drives the driving motor 17 to rotate at a slow speed through the chain 20, and the driving motor 17 drives the crushing wheel 26 to rotate at a slow speed through the driving belt 18, so as to drive the roller 4 to rotate at a synchronous slow speed. The supporting table 13 is moved to enable the milling cutter 16 to be in contact with the surface of the roller 4, the servo motor is started, the driving screw rod 14 is driven by the servo motor to rotate, the driving screw rod 14 rotates to drive the milling cutter seat 15 in threaded connection with the driving screw rod to move along the axial direction of the roller 4, and therefore the milling cutter 16 can carry out comprehensive milling repair on the roller surface.

After the roller surfaces are repaired, the distance between the two roller surfaces is increased, and at the moment, in order to ensure the crushing effect of the raw materials, the distance between the roller surfaces of the two rollers 4 needs to be readjusted to be 0.3-0.5 mm. At this time, the operator rotates the adjusting screw rod 12, the adjusting screw rod 12 rotates to drive the connecting seat 6 in threaded connection with the adjusting screw rod to move transversely along the crusher shell 2, and further drive the roller 4 at the right end to move leftwards, the roller 4 close to the left end is driven, and when the distance between the roller surfaces of the two rollers 4 is adjusted to be 0.3-0.5mm, the position of the roller 4 is corrected again.

According to the technical scheme, when the roll surface of the roll pair is damaged, the roll surface can be milled and repaired by the aid of the repairing mechanism without being integrally replaced, and equipment investment is reduced.

Example two

As shown in fig. 5 and 6, the present embodiment is different from the first embodiment in that: in this embodiment, a mud scraping mechanism is further disposed in the crusher housing 2, the mud scraping mechanism includes a rotating shaft 21 rotatably connected in the crusher housing 2, the rotating shaft 21 is parallel to the axial direction of the roller 4, the rotating shaft 21 is located below the roller 4, and a mud scraping plate 22 which can abut against the outer wall of the roller 4 is welded on the rotating shaft 21 along the axial direction thereof. One end of the rotating shaft 21 penetrates out of the side wall of the crusher shell 2 and is coaxially and fixedly connected with a driving arm 23, a connecting hole is formed in one end, away from the rotating shaft 21, of the driving arm 23, a threaded column 24 penetrates through the connecting hole, the top end of the threaded column 24 is in threaded connection with two fixing nuts 25, the two fixing nuts 25 are located on two sides of the connecting hole respectively, and the bottom end of the threaded column 24 is hinged to the frame 1.

When the roller crusher is used practically, the crushed raw materials of the roller crusher comprise clay, shale, limestone and the like, and when the roller crusher is used for rolling and crushing, the raw materials are adhered to the surface of the roller 4 due to certain adhesion, so that the subsequent crushing effect on the raw materials is influenced. The scraper 22 is used for scraping off the mud adhered on the roller surface, and when in use, the roller 4 completes the scraping off process in the process of relative movement of the roller surface and the scraper 22 during the rotation process. After the roll surface is repaired, the distance between the roll surface and the mud scraper 22 changes, and a gap is formed between the mud scraper 22 and the roll surface, so that the mud scraper 22 does not abut against the roll surface any more to cause ineffective mud scraping. At this moment, the position of the mud scraper 22 needs to be adjusted, an operator rotates the driving arm 23, the driving arm 23 rotates to drive the rotating shaft 21 coaxially and fixedly connected with the driving arm to rotate, the rotating shaft 21 drives the mud scraper 22 to rotate by a certain angle in the rotating process and to abut against the roll surface again, and at this moment, the fixing of the position of the driving arm 23 is realized again through the fixing nut 25 and the threaded column 24, so that the stable support of the mud scraper 22 is ensured.

The foregoing is merely an example of the present invention and common general knowledge in the art of designing and/or characterizing particular aspects and/or features is not described in any greater detail herein. It should be noted that, for those skilled in the art, without departing from the technical solution of the present invention, several variations and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims (10)

1. The utility model provides a high-speed fine crushing twin-roll machine, includes the frame, its characterized in that: the crushing mechanism comprises a crusher shell and two crushing rollers which are rotatably connected in the crusher shell, a funnel-shaped feed hopper is arranged at the top end of the crusher shell, each crushing roller comprises a roller, end covers which are detachably connected to two ends of the roller and crushing shafts which penetrate between the two end covers, an adjustable abutting component is arranged between the two end covers, and a distance adjusting component for adjusting the distance between the two crushing shafts is arranged between the two crushing shafts; the repairing mechanism comprises a guide rail arranged at the side part of the crushing roller along the axial direction of the crushing roller and a milling cutter component which is connected to the guide rail in a sliding way and can be contacted with the surface of the roller.

2. The high-speed fine crushing roller pair machine according to claim 1, characterized in that: the adjusting type abutting assembly comprises wedge-shaped holes formed in the end covers, a fixing screw rod is arranged between the wedge-shaped holes of the two opposite end covers in a penetrating mode, wedge blocks capable of abutting tightly in the wedge-shaped holes are sleeved at the two ends of the fixing screw rod, wedge faces are arranged on the wedge blocks and incline towards the middle of the fixing screw rod, and abutting nuts connected to the fixing screw rod through threads are arranged on the outer sides of the wedge blocks.

3. The high-speed fine crushing roller pair machine according to claim 2, characterized in that: a gasket is arranged between the wedge-shaped block and the abutting nut, the gasket is sleeved on the fixed screw rod, one end of the gasket abuts against the abutting nut, and the other end of the gasket is in threaded connection with the side portion of the wedge-shaped block.

4. The high-speed fine crushing roller pair machine according to claim 3, characterized in that: there is a 10% difference in rotational speed between the two crushing rolls.

5. The high-speed fine crushing roller pair machine according to claim 4, characterized in that: the distance adjusting assembly is used for adjusting the distance between the roll surfaces of the two rollers to 0.3-0.5mm and comprises an adjusting screw rod rotatably connected to the crusher shell, a connecting seat in threaded connection with the adjusting screw rod is sleeved on the adjusting screw rod and is connected to the inside of the crusher shell in a sliding mode, and the crushing shaft is rotatably connected to the connecting seat.

6. The high-speed fine crushing roller pair machine according to claim 5, characterized in that: the milling cutter assembly comprises a milling cutter seat which is slidably connected onto the guide rail, a driving screw rod is connected to the crusher shell in a rotating mode, the milling cutter seat is sleeved on the driving screw rod and is in threaded connection with the driving screw rod, and a milling cutter which can be in surface contact with the roller is installed on the milling cutter seat.

7. The high-speed fine crushing roller pair machine according to claim 6, characterized in that: the driving mechanism comprises a driving motor arranged on the rack, a speed reduction motor is arranged on the side portion of the driving motor, a chain is connected between an output shaft of the driving motor and an output shaft of the speed reduction motor, and a driving belt is connected between the driving motor and the crushing shaft.

8. The high-speed fine crushing roller pair machine according to claim 7, characterized in that: the driving motor and the gear motor are both connected to the rack in a sliding mode, and limiting parts are detachably connected among the driving motor, the gear motor and the rack.

9. The high-speed fine crushing roller pair machine according to claim 8, characterized in that: the crusher shell is connected with a rotating shaft in a rotating mode, a mud scraper which can abut against the outer wall of the roller is fixed on the rotating shaft along the axial direction of the rotating shaft, and one end of the rotating shaft penetrates out of the side wall of the crusher shell and is connected with an adjustable limiting part.

10. The high-speed fine crushing roller pair machine according to claim 9, characterized in that: the regulation formula locating part includes the actuating arm with the coaxial rigid coupling of pivot, and the one end that the pivot was kept away from to the actuating arm is provided with the connecting hole, wears to be equipped with the screw thread post in the connecting hole, and the top threaded connection of screw thread post has fixation nut, and the bottom of screw thread post articulates in the frame.

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