CN114272991A

CN114272991A - Double-roller sand making machine capable of stirring stuck materials

Info

Publication number: CN114272991A
Application number: CN202111511668.9A
Authority: CN
Inventors: 祝光云; 祝鹤槐
Original assignee: Zhejiang Chentai Machinery Manufacturing Co ltd
Current assignee: Zhejiang Chentai Machinery Manufacturing Co ltd
Priority date: 2021-12-11
Filing date: 2021-12-11
Publication date: 2022-04-05
Anticipated expiration: 2041-12-11
Also published as: CN114272991B

Abstract

The invention relates to a pair-roller sand making machine for stirring anti-sticking materials, which comprises a rack and a stone moving structure, wherein the rack is provided with two crushing rollers and a driving motor for driving the crushing rollers to rotate, the crushing rollers comprise rolling cylinders and a main shaft, a rolling gap is formed between the two rolling cylinders, the crushing rollers are connected with the rack through the main shaft, the stone moving structure comprises a plurality of shifting pieces which are distributed along the axial direction of the crushing rollers and are positioned between the two crushing rollers and connected with the rack through a swing shaft, and a shifting piece driving mechanism for driving the shifting pieces to swing by taking the swing shaft as a shaft, and the swing shaft horizontally extends along the direction vertical to the crushing rollers. The invention aims to provide a pair-roller sand making machine which can remove stirring stuck materials without separating a crushing roller when the stuck materials are generated in feeding, and is used for solving the problem that stone materials with unqualified granularity can be mixed into the crushed sand when the crushed materials are removed by separating the crushing roller.

Description

Double-roller sand making machine capable of stirring stuck materials

Technical Field

The invention relates to a sand making machine, in particular to a pair roller sand making machine for stirring a stuck material.

Background

A sand maker is a mechanical device used to break stone into sand. The structure of the sand making machine has two types, one is a hammer crusher, the other is a double-roller machine (hereinafter referred to as a double-roller sand making machine), the hammer crusher has many wearing parts, large energy consumption, much dust and uneven fineness. The roller pair sand making machine can avoid the defects of much dust and uneven fineness. The patent document with Chinese patent No. 2010202399225, publication No. CN201791554U, entitled "drive mechanism of double-roller sand making machine" discloses a double-roller sand making machine, the crushing of stone into sand by the double-roller sand making machine is realized by rolling a pair of crushing rollers (also called rollers), the crushing roller of the initial double-roller sand making machine is realized by arranging a chain wheel at one end of the crushing roller, then reducing the speed of the output of a motor by a speed reducer and then driving the chain wheel by a chain, therefore, the defects of poor efficiency, large abrasion, small bearing capacity, small impact resistance, large vibration and appearance volume and short continuous operation life exist; the present applicant has devised for this purpose an internally driven pair roller sand mill as disclosed in patent application No. 2016101635735. The sand making machine in the patent has the following defects: the phenomenon that the crushed stone cannot rotate when being clamped by the stone can be encountered in the crushing process, the jamming can be eliminated if the stone which causes the jamming is transposed and then fed and rolled again when the jamming is generated, the existing jamming elimination method is that a crushing roller is fixed with a rack through an air cylinder, the jamming force drives the air cylinder to compress to provide the interval (namely the crushing interval is widened) for separating the crushing barrel when the jamming is generated, and the jamming solving mode can cause the granularity of the sand to exceed the requirement although the manual dredging is carried out without stopping.

Disclosure of Invention

The invention aims to provide a pair-roller sand making machine which can remove stirring stuck materials without separating a crushing roller when the stuck materials are generated in feeding, and is used for solving the problem that stone materials with unqualified granularity can be mixed into the crushed sand when the crushed materials are removed by separating the crushing roller.

The technical problem is solved by the following technical scheme: the utility model provides a stir pair roller system sand machine of card material that disappears, includes the frame, the frame is provided with two crushing drums and drive crushing drum pivoted driving motor, crushing drum includes grinding cylinder and main shaft, forms between two grinding cylinders and rolls the clearance, crushing cylinder passes through the main shaft with the frame links together, and its characterized in that still moves the building stones moving structure that is located treating crushing building stones between two crushing cylinders including removing, building stones moving structure include a plurality of along crushing cylinder axial distribution lie in two between the crushing cylinder through the plectrum that the balance staff is connected with the frame with the drive plectrum with the balance staff is axle wobbling plectrum actuating mechanism, the balance staff is along the direction horizontal extension of perpendicular to crushing cylinder. When jamming occurs, the poking piece driving mechanism drives the poking piece to swing by taking the swinging shaft as the shaft to displace stone, so that the jamming is eliminated.

Preferably, the stone moving structure comprises a plurality of shifting pieces which are distributed along the axial direction of the crushing rollers and are positioned between the two crushing rollers and connected with the frame through a swing shaft, and a shifting piece driving mechanism for driving the shifting pieces to swing by taking the swing shaft as a shaft, wherein the swing shaft horizontally extends along the direction vertical to the crushing rollers. Provides a concrete technical proposal of the stone moving structure.

Preferably, a feeding hopper for conveying stone to the crushing rollers is arranged on the rack, a rectangular prism-shaped discharging pipe which extends into a space between the two crushing rollers and is of a flat structure is arranged on the feeding hopper, the length direction of the discharging pipe is consistent with the axial direction of the crushing rollers, the swing shaft is fixed on the outer surface of the discharging pipe, and the shifting sheet is suspended on the discharging pipe through the swing shaft. Compact structure nature is good, can drop the volume that gets into the building stones between two crushing roller for it is more laborsaving abundant to remove the building stones during the card hinders, thereby is convenient for can be fast to the quick whole removals of the building stones that lie in between the crushing roller body, in order to improve the efficiency when dredging the card and hindering.

Preferably, the swing shaft is composed of two half sections, the two half sections are connected to two sides of the blanking pipe, the poking piece is provided with two connecting lugs, and the two swing shafts penetrate through the two connecting lugs in a one-to-one correspondence mode and can be connected to the two connecting lugs in a rotating mode. The pick has good stability when being connected, and the joint is not easy to be damaged.

Preferably, the pendulum shaft is fixedly connected with the blanking pipe. When the shifting piece swings to cause damage, the blanking tube cannot be damaged, and the blanking tube is low in cost and convenient to maintain.

Preferably, the plectrum also includes the extension section that extends to in the unloading pipe, and the pendulum shaft is located between plectrum and the extension section. When the pendulum picked up building stones on the plectrum, the extension section pressed down building stones for the lower pendulum, and the interact of two continuous plectrums can make building stones produce more easily and roll, more can realize once stirring and whole aversion of building stones, and the mediation is efficient.

Preferably, the pick and the extension are located on the same surface. The effect of stirring to promote the stone to turn over is good.

Preferably, adjacent shifting pieces are spaced from the extension section on the other shifting piece along the axial direction of the crushing roller in the process that the shifting pieces rotate by taking the swing shaft as an axis. The anti-rotation reliability of the stone is good when the plectrum is pulled.

Preferably, when the shifting piece swings to the position with the largest angle, the spacing distance between the extending sections of one shifting piece and the other shifting piece in the adjacent shifting pieces is less than 2 centimeters.

Preferably, the feed hopper is further provided with two baffle plates which are distributed along the axial direction of the crushing roller and are positioned at two ends of the blanking pipe, the baffle plates extend into the space between the two rolling cylinders, and the gap between the baffle plates and the outer roller is smaller than the granularity of stone materials to be crushed. The stones falling onto the two crushing rollers can be prevented from scattering without passing through the crushing gap.

Preferably, the plectrum driving mechanism comprises a rack extending along the axial direction of the crushing roller and a translation mechanism driving the rack to translate in a reciprocating manner along the extending direction of the rack, the plectrum is provided with a plurality of driving teeth distributed along the axial direction of the pendulum shaft and distributed in the circumferential direction, and the driving teeth are meshed with the rack together. One set of actuating mechanism just can drive so plectrum, and this design can play supplementary plectrum and maintain vertical state when not stirring moreover.

The invention also comprises a control unit and a counter, the opening of the outer roller is round, the inner roller is cylindrical and coaxial with the outer roller, the outer roller and the inner roller are fixed together by a friction braking rotation stopping mechanism, the outer roller and the inner roller can rotate relatively when being clamped by stones in the stone grinding process of the two grinding cylinders, a slip detection mechanism for detecting whether slip occurs between the inner roller and the outer roller is arranged on the crushing roller, the slip detection mechanism comprises a conductive bar, a guide sleeve, a cam, an ejector rod, a separation structure and two conductive rings, the conductive rings are distributed along the axial direction of the crushing roller, the cam and the conductive rings are coaxial with the crushing roller, the cam and the inner roller are fixed together, the guide sleeve and the outer roller are fixed together, the ejector rod extends along the radial direction of the crushing roller and is arranged in the guide sleeve in a penetrating manner, one end of the ejector rod is connected together with the conductive bar, The other end of the conductive bar is aligned with the cam, the conductive bar is aligned with the two conductive rings at the same time, when the ejector rod is supported on the protruding part of the cam, the ejector rod drives the conductive bar to abut against the two conductive rings at the same time so that the two conductive rings are conducted, the separation structure is used for driving the ejector rod to drive the conductive bar to be separated from the conductive rings when the ejector rod is staggered with the protruding part of the cam, the conductive rings are fixed with the rack, and the driving motor, the counter and the conductive rings are all electrically connected with the control unit; in the process of crushing stone by driving the crushing roller by the forward rotation of the driving motor, when the conducting ring is disconnected from the conducting bar, the counter starts to record the conducting times N of the conducting bar and the conducting ring, when the N reaches a set value, the control device enables the driving motor to rotate reversely for a set angle and then stops rotating for a set time, and then the forward rotation is carried out, and when the driving motor rotates reversely, the timer is reset; the stone moving structure moves the stone to be crushed between the two crushing drums during a period in which the control device stops after reversing the driving motor by a set angle. Whether the jamming is generated can be automatically known, after the jamming is generated, the slipping detection mechanism can be reset, and the reverse rotation can be generated to enable the jamming stones to move and loosen, so that the jamming is not generated until the normal smashing is carried out.

Preferably, the disengagement structure is a spring. The structure is simple and durable.

Preferably, one end of the spring is connected with the guide sleeve, and the other end of the spring is connected with the ejector rod.

Preferably, the spring is sleeved on the ejector rod, the ejector rod is provided with a supporting block, one end of the spring is abutted with the guide sleeve, and the other end of the spring is abutted with the supporting block. The structure is compact and good.

Preferably, the cam is an outer cam, the conductive strip is arranged in the conductive ring in a penetrating mode, and the supporting block is arranged at one end, facing the outer cam, of the ejector rod. The preparation is convenient.

Preferably, the two milling drums are staggered axially, and one conducting ring of the two conducting rings of the slip detection mechanism in the two milling drums and one milling drum is sleeved at one end of one milling drum extending out of the other milling drum. The slip detection mechanism can be arranged on the rolling cylinder on the premise that the structure of the rolling cylinder is not changed.

Preferably, one end of the outer roller is provided with an inner conical surface section of a conical surface with a large outer end and a small inner end, one end of the inner roller body is provided with an outer conical surface section of a conical surface with a large outer end and a small inner end, an annular connecting groove which extends along the circumferential direction of the inner roller body and is positioned on the end face of the rolling cylinder is arranged between the other end of the outer roller and the other end of the inner roller body, and the rotation stopping mechanism is arranged in the connecting groove; the rotation stopping structure comprises an inner extrusion ring and an outer extrusion ring which are sleeved on an inner roller body, the outer end of the inner extrusion is provided with an inner extrusion ring part conical surface section, the outer peripheral surface of the inner extrusion ring part conical surface section is a conical surface with a large inner end and a small outer end, the inner peripheral surface of the inner extrusion ring part conical surface section is a conical surface with a small inner end and a large outer end, the inner end of the outer extrusion ring is provided with an outer extrusion ring part conical surface section, the outer peripheral surface of the outer extrusion ring part conical surface section is a conical surface with a small inner end and a large outer end, the inner extrusion ring is provided with a plurality of inner extrusion ring part threaded holes which are distributed along the circumferential direction of the inner extrusion ring and extend axially, the outer extrusion ring is provided with a plurality of outer extrusion ring part bolt holes which are distributed along the circumferential direction of a connecting groove, two ends of the connecting groove are respectively supported on the outer peripheral surface of the inner extrusion ring part conical surface section and the outer peripheral surface of the outer extrusion ring conical surface section, the inner extrusion device is characterized in that a plurality of inner extrusion strips are arranged in the connecting groove, two ends of the inner extrusion strips are circumferentially distributed along the connecting groove and respectively supported on the inner peripheral surface of the conical section of the inner extrusion ring part and the inner peripheral surface of the conical section of the outer extrusion ring part, a plurality of tensioning screws penetrate through the bolt holes of the outer extrusion ring part in a one-to-one correspondence mode and then are screwed in the threaded holes of the inner extrusion ring part in a one-to-one correspondence mode, the outer extrusion strips are abutted to the inner peripheral surface of the outer roller together under the extrusion effect of the inner extrusion ring and the inner extrusion ring, and the outer peripheral surface of the inner roller body is abutted to the outer peripheral surface of the inner roller body through the inner extrusion strips. This technical scheme establishes back on interior roll body at outer cylinder cover, will only rotate the mechanism and pour into the spread groove into, then make inside and outside extrusion circle fold through rotating the tensioning screw, the result of folding is realized realizing the fixed of outer roller and interior roll body through frictional force for driving inside and outside extrusion strip supports tightly with interior roll body and outer roller, thereby need not to design outer roller and interior roll body for the tight fit, and this technical scheme locks and only need rotate the tensioning screw when loosening can, thereby it is laborsaving when outer roller and interior roll body are dismantled in the feasible assembly. The roller is fixed through friction force, so that the force for fixing the outer roller and the inner roller body can be controlled conveniently.

Preferably, the outer extrusion strips and the outer peripheral surface of the conical surface section of the inner extrusion ring portion are in matched abutting connection, and the outer extrusion strips and the outer peripheral surface of the conical surface section of the outer extrusion ring portion are in matched abutting connection; the inner extrusion strip and the inner circumferential surface conical surface of the conical surface section of the inner extrusion ring portion are matched and abutted together, and the inner extrusion strip and the inner circumferential surface conical surface of the conical surface section of the outer extrusion ring portion are matched and abutted together. The abrasion between the extrusion ring and the extrusion strip during locking can be reduced.

Preferably, the inner circumferential surface of the outer roller is provided with a plurality of outer roller clamping grooves, and the outer extrusion strips are correspondingly arranged in the outer roller clamping grooves in a penetrating manner; the outer peripheral surface of the inner roller body is provided with a plurality of inner roller body part clamping grooves, and the inner extrusion strips penetrate through the inner roller body part clamping grooves in a one-to-one correspondence mode. The friction force transmission part for fixing the outer roller and the inner roller is controlled at the contact part of the extrusion ring and the extrusion strip, so that the friction force transmission part is convenient to replace and improve the convenience in manufacturing when being worn.

Preferably, the outer circumferential surface of the conical surface section of the inner extrusion ring part is provided with an outer friction layer of the inner extrusion ring part, an inner friction layer of the inner extrusion ring part is arranged on the inner peripheral surface of the conical surface section of the inner extrusion ring part, an outer friction layer of the outer extrusion ring part is arranged on the outer peripheral surface of the conical surface section of the outer extrusion ring part, an inner friction layer of the outer extrusion ring part is arranged on the inner circumferential surface of the conical surface section of the outer extrusion ring part, one end of the inner extrusion strip is provided with a first friction layer of the inner extrusion strip part which is abutted with the inner friction layer of the inner extrusion ring part, the other end of the inner extrusion strip is provided with a second friction layer of the inner extrusion strip part which is abutted with the inner friction layer of the outer extrusion ring part, one end of the outer extrusion pressing strip is provided with a first friction layer of the outer extrusion pressing strip part which is abutted with the outer friction layer of the inner extrusion ring part, and the other end of the outer extrusion pressing strip is provided with a second friction layer of the outer extrusion pressing strip part which is abutted with the outer friction layer of the outer extrusion ring part. The control can be better controlled when the force for preventing the outer roller and the inner roller from generating relative rotation is controlled.

Compared with the prior art, the method has the following beneficial effects: the outer roller and the inner roller body are fixed together through a radial opening structure, so that the outer roller and the inner roller body are convenient and labor-saving to assemble and disassemble; the outer roller and the inner roller are prevented from rotating relatively through friction force, the friction force is controlled to enable the torque for preventing the outer sleeve from rotating to be larger than the torque generated by the friction force when jamming occurs, so that the outer roller stops and only the inner roller rotates (namely slipping occurs between the outer roller and the inner roller) when jamming occurs, whether jamming occurs or not is judged through detecting whether slipping occurs or not, stone materials blocked by jamming are loosened through reversing when jamming occurs, then crushing is carried out, jamming is eliminated, and manufactured sand is excessively large in particle size due to the fact that two crushing rollers are not required to be separated when jamming occurs; can remove the transposition to the building stones between the crushing roller body when the jam to dredge and eliminate the jam.

Drawings

FIG. 1 is a front view of the present invention with the shift lever in an initial state;

FIG. 2 is a schematic enlarged view of a portion of FIG. 1 at B;

FIG. 3 is a schematic cross-sectional view C-C of FIG. 1;

FIG. 4 is an enlarged partial schematic view at D of FIG. 3;

FIG. 5 is a schematic view of the present invention with the toggle lever pivoted to an extreme position.

FIG. 6 is a schematic view of a crushing roller according to a second embodiment of the present invention;

FIG. 7 is an enlarged partial schematic view at A of FIG. 6;

FIG. 8 is a schematic front view illustrating a second embodiment of the present invention;

FIG. 9 is a schematic side view of the crushing roller according to the second embodiment.

In the figure: the device comprises a grinding cylinder 1, a main shaft 2, a grinding gap 3, an outer roller 4, an inner roller 5, an inner conical surface section 6, an outer conical surface section 7, a connecting groove 8, a rotation stopping mechanism 9, an inner extrusion ring 10, an outer extrusion ring 11, an inner extrusion ring conical surface section 12, an outer extrusion ring conical surface section 13, an inner extrusion ring threaded hole 14, an outer extrusion strip 15, an inner extrusion strip 16, a tensioning screw 17, an outer roller clamping groove 18, an inner roller clamping groove 19, an inner extrusion ring outer friction layer 20, an inner extrusion ring inner friction layer 21, an outer extrusion ring outer friction layer 22, an outer extrusion ring inner friction layer 23, an inner extrusion strip first friction layer 24, an inner extrusion strip second friction layer 25, an outer extrusion strip first friction layer 26, an outer extrusion strip second friction layer 27, a conductive strip 28, a guide sleeve 29, a cam 30, a push rod 31, a disengaging structure 32, a conductive ring 33, a cam bulge 34, a supporting block 35, The device comprises a swing shaft 36, a shifting piece 37, a feed hopper 38, a feeding pipe 39, a connecting lug 40, an extension section 41, a baffle plate 42, a gap 43 between the baffle plate and an outer roller, a rack 44, a translation mechanism 45, a driving gear 46 and a spacing distance L between one shifting piece of adjacent shifting pieces and the extension section of the other shifting piece when the shifting pieces swing to the position with the largest angle.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

First embodiment, referring to fig. 1 to 7, a pair roller sand making machine for shifting a stuck material comprises a rack, wherein the rack is provided with two crushing rollers and a driving structure for driving the crushing rollers to rotate, and the driving mechanism comprises a driving motor. Crushing cylinder includes a section of thick bamboo 1 and main shaft 2 of rolling, it establishes and rotates to roll the cover and connect in the main shaft, crushing cylinder passes through the main shaft and links together with the frame, it rolls clearance 3 (see fig. 6) to form between two rolls, it includes outer roller 4 and the interior roller 5 that can dismantle the connection together with outer roller that lies in outer roller, the one end of outer roller is equipped with the inner conical surface section 6 that the inner peripheral surface is the little conical surface of the big inner end in outer end, the one end of interior roller is equipped with outer conical surface section 7 that the outer peripheral surface is the little conical surface of the big inner end in outer end. The opening of the outer roller is circular, and the inner roller body is cylindrical and coaxial with the outer roller. An annular connecting groove 8 which extends along the circumferential direction of the inner roller body and is positioned on the end face of the rolling cylinder is arranged between the other end of the outer roller cylinder and the other end of the inner roller body, and a rotation stopping mechanism 9 which prevents the outer roller cylinder from rotating relative to the inner roller body is arranged in the connecting groove. The rotation stopping structure comprises an inner extrusion ring 10 and an outer extrusion ring 11 which are sleeved on an inner roller body, the outer end of the inner extrusion is provided with an inner extrusion ring part conical surface section 12, the outer peripheral surface of the inner extrusion ring part conical surface section is a conical surface with a large inner end and a small outer end, the inner peripheral surface of the inner extrusion ring part conical surface section is a conical surface with a small inner end and a large outer end, the inner peripheral surface of the outer extrusion ring part conical surface section is a conical surface with a small inner end and a large outer end, the inner extrusion ring is provided with a plurality of inner extrusion ring part threaded holes 14 which are distributed along the circumferential direction of the inner extrusion ring and extend axially, the outer extrusion ring is provided with a plurality of outer extrusion ring part bolt holes which are distributed along the circumferential direction of the outer extrusion ring and extend axially, a plurality of outer extrusion battens 15 which are arranged in the connecting groove and both ends of which are respectively supported on the outer peripheral surface of the inner extrusion ring part conical surface and the outer extrusion ring part conical surface, the connecting groove is internally provided with a plurality of inner extrusion strips 16 which are respectively supported on the inner peripheral surface of the conical section of the inner extrusion ring part and the inner peripheral surface of the conical section of the outer extrusion ring part at two ends distributed along the circumferential direction of the connecting groove, a plurality of tensioning screws 17 correspondingly penetrate through the bolt holes of the outer extrusion ring part one by one and then are correspondingly screwed in the threaded holes of the inner extrusion ring part one by one, the outer extrusion strips are butted together with the inner peripheral surface of the outer roller under the extrusion action of the inner extrusion ring and the inner extrusion ring, and the outer peripheral surface of the inner roller body is butted together through the inner extrusion strips. The outer extrusion pressing strip and the outer peripheral surface conical surface of the conical surface section of the inner extrusion ring portion are matched and abutted together, and the outer extrusion pressing strip and the outer peripheral surface conical surface of the conical surface section of the outer extrusion ring portion are matched and abutted together; the inner extrusion strip and the inner peripheral surface conical surface of the conical surface section of the inner extrusion ring portion are matched and abutted together, and the inner extrusion strip and the inner peripheral surface conical surface of the conical surface section of the outer extrusion ring portion are matched and abutted together. The inner circumferential surface of the outer roller is provided with a plurality of outer roller clamping grooves 18. The outer roller clamping groove penetrates through the end face of the outer roller. The outer extrusion pressing strips penetrate through the clamping grooves of the outer roller barrel part in a one-to-one correspondence manner; a plurality of inner roller body part clamping grooves 19 are arranged on the outer peripheral surface of the inner roller body and run through the end surface of the inner roller body. The inner extrusion strips are correspondingly arranged in the clamping grooves of the inner roller body part in a penetrating way. An inner extrusion ring part outer friction layer 20 is arranged on the outer peripheral surface of the inner extrusion ring part conical surface section, an inner extrusion ring part inner friction layer 21 is arranged on the inner peripheral surface of the inner extrusion ring part conical surface section, an outer extrusion ring part outer friction layer 22 is arranged on the outer peripheral surface of the outer extrusion ring part conical surface section, an outer extrusion ring part inner friction layer 23 is arranged on the inner peripheral surface of the outer extrusion ring part conical surface section, an inner extrusion strip part first friction layer 24 which is abutted with the inner extrusion ring part inner friction layer is arranged at one end of the inner extrusion strip, an inner extrusion strip part second friction layer 25 which is abutted with the outer extrusion ring part inner friction layer is arranged at the other end of the inner extrusion strip, an outer extrusion strip part first friction layer 26 which is abutted with the inner extrusion ring part outer friction layer is arranged at one end of the outer extrusion strip, and an outer extrusion strip part second friction layer 27 which is abutted with the outer extrusion ring part outer friction layer is arranged at the other end of the outer extrusion strip.

The invention also comprises a stone moving structure for moving the stone to be crushed between the two crushing rollers. The stone moving structure comprises a plurality of shifting pieces 37 which are distributed along the axial direction of the crushing rollers and are positioned between the two crushing rollers and connected with the frame through a swinging shaft 36, and a shifting piece driving mechanism for driving the shifting pieces to swing by taking the swinging shaft as a shaft, wherein the swinging shaft horizontally extends along the direction vertical to the crushing rollers. The frame is provided with a feeding hopper 38 for conveying stone materials to the crushing rollers, the feeding hopper is provided with a rectangular discharging pipe 39 extending into a flat structure between the two crushing rollers, the length direction of the discharging pipe is consistent with the axial direction of the crushing rollers, a swing shaft is fixed on the outer surface of the discharging pipe, and a shifting piece is suspended on the discharging pipe through the swing shaft. The pendulum shaft comprises two half sections, and two half sections are connected in the both sides of unloading pipe, and the plectrum is equipped with two engaging lugs 40, and two pendulum shafts wear to establish and can connect on two engaging lugs with rotating one-to-one. The half sections are welded and fixed together with the blanking pipe. The plectrum also includes the extension 41 that extends to in the blanking pipe, and the pendulum shaft is located between plectrum and extension. The plectrum and the extension section are positioned on the same surface. And adjacent shifting pieces are spaced from the extension section on the other shifting piece along the axial direction of the crushing roller in the process that the shifting pieces rotate by taking the swing shaft as the shaft. When the shifting piece swings to the position with the largest angle, the spacing distance L between the extending sections of one shifting piece and the other shifting piece in the adjacent shifting pieces is less than 2 cm, which is 2 mm in the embodiment. The feeder hopper still is equipped with two baffle 42 that are located the unloading pipe both ends along crushing roller axial distribution, the baffle stretches into between two crushing barrels, and the clearance 43 between baffle and the outer cylinder is less than the granularity of treating kibbling building stones, also just the building stones can not fall out from the circumference of crushing roller body under the effect of bottom. The paddle drive mechanism comprises a rack 44 extending axially along the crushing drum and a translation mechanism 45 driving the rack to translate reciprocally in the direction of extension of the rack. The translation mechanism is a cylinder. The shifting piece is provided with a plurality of driving teeth 46 which extend along the axial direction of the swing shaft and are distributed along the circumferential direction, and the driving teeth are meshed with the rack.

The second embodiment is different from the first embodiment in that:

referring to fig. 8 and 9, the present invention further includes a control unit and a counter, and the crushing roller is provided with a slip detection mechanism for detecting whether a slip phenomenon occurs between the inner roller and the outer roller. The slip detection mechanism comprises a conductive bar 28, a guide sleeve 29, a cam 30, a push rod 31, a disengaging structure 32 and two conductive rings 33. The two conducting rings are distributed along the axial direction of the crushing roller, the cam and the conducting rings are coaxial with the crushing roller, and the cam is an outer cam. The cam is together fixed with interior roller body, and the uide bushing is together fixed with outer roller, and the ejector pin just wears to establish in the uide bushing along crushing roller's radial extension, and the one end of ejector pin links together with the conducting strip, and the other end aligns with the cam, and the conducting strip aligns with two conducting rings simultaneously, and ejector pin drive conducting strip butt simultaneously makes two conducting rings switch on two conducting rings when the ejector pin supports the bellying 34 at the cam. The separation structure is used for driving the ejector rod to drive the driving conductive bar to be separated from the conductive ring when the ejector rod and the protruding part of the cam are staggered, the conductive ring and the frame are fixed together, and one of the two conductive rings is sleeved on the outer roller. The driving motor, the counter and the conducting ring are electrically connected with the control unit; in the process of crushing stones by driving the crushing roller through forward rotation of the driving motor, when the conducting ring is separated from the conducting bar, the counter starts to record the conducting times N of the conducting bar and the conducting ring, and when the N reaches a set value (the set value is 1 in the embodiment, and the abrasion of a friction layer can be reduced), the control device enables the driving motor to rotate backwards for a set angle (the set angle is 90 degrees in the embodiment) and then stops rotating forwards for a set time (the set time is 3 seconds in the embodiment), and the timer is reset when the driving motor rotates backwards. The disengaging structure is a spring. One end of the spring is connected with the guide sleeve, and the other end of the spring is connected with the ejector rod, specifically: the spring is sleeved on the ejector rod, a supporting block 35 is arranged on the ejector rod, one end of the spring is abutted with the guide sleeve, and the other end of the spring is abutted with the supporting block. The conducting bar is arranged in the conducting ring in a penetrating mode, and the supporting block is arranged at one end, facing the outer cam, of the ejector rod. Two the section of thick bamboo of rolling staggers along the axial, and two of the detection mechanism that skids in two sections of rolls, a section of thick bamboo of rolling a conducting ring cover is established one and is rolled a section of thick bamboo and stretch out one end of another section of thick bamboo of rolling. The present embodiment moves the stone moving structure between the two crushing drums to be crushed during the period in which the control means stops after reversing the driving motor by a set angle.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a stir pair roller system sand machine of card material that disappears, includes the frame, the frame is provided with two crushing drums and drive crushing drum pivoted driving motor, crushing drum includes grinding cylinder and main shaft, forms between two grinding cylinders and rolls the clearance, crushing cylinder passes through the main shaft with the frame links together, and its characterized in that still moves the building stones moving structure that is located treating crushing building stones between two crushing cylinders including removing, building stones moving structure include a plurality of along crushing cylinder axial distribution lie in two between the crushing cylinder through the plectrum that the balance staff is connected with the frame with the drive plectrum with the balance staff is axle wobbling plectrum actuating mechanism, the balance staff is along the direction horizontal extension of perpendicular to crushing cylinder.

2. The pair-roller sand making machine capable of shifting the blockage eliminating materials according to claim 1, wherein a feed hopper for conveying stone materials to the crushing rollers is arranged on the rack, the feed hopper is provided with a rectangular prism-shaped blanking pipe which extends into a flat structure between the two crushing rollers, the length direction of the blanking pipe is consistent with the axial direction of the crushing rollers, the swing shaft is fixed on the outer surface of the blanking pipe, and the shifting sheet is suspended on the blanking pipe through the swing shaft.

3. The pair-roller sand making machine for stirring the stuck-eliminating materials according to claim 2, wherein the swing shaft is composed of two half sections, the two half sections are connected to two sides of the blanking pipe, the stirring sheet is provided with two connecting lugs, and the two swing shafts are correspondingly arranged in a penetrating manner one by one and can be rotatably connected to the two connecting lugs.

4. The pair roller sand making machine for stirring the stuck eliminating materials according to claim 2 or 3, wherein the stirring sheet further comprises an extension section extending into the blanking pipe, and the pendulum shaft is positioned between the stirring sheet and the extension section.

5. The pair-roller sand making machine for stirring the stuck elimination material as claimed in claim 4, wherein the stirring sheet and the extension section are positioned on the same surface.

6. The pair roller sand making machine for stirring the stuck elimination material as claimed in claim 4, wherein the adjacent shifting sheets are spaced apart from the extending section on the other shifting sheet along the axial direction of the crushing roller in the process that the shifting sheets rotate by taking a swing shaft as an axis.

7. A pair roller sand making machine for stirring and eliminating stuck materials according to claim 1, 2 or 3, characterized in that the stirring sheet driving mechanism comprises a rack extending along the axial direction of the crushing roller and a translation mechanism for driving the rack to perform reciprocating translation along the extending direction of the rack, the stirring sheet is provided with a plurality of driving teeth distributed circumferentially along the axial direction of the pendulum shaft, and the driving teeth are meshed with the rack.

8. The pair roller sand making machine for stirring the material without sticking as claimed in claim 1, 2 or 3, characterized in that it further comprises a control unit and a counter, the opening of the outer roller is circular, the inner roller is cylindrical and coaxial with the outer roller, the outer roller and the inner roller are fixed together by a friction braking rotation stopping mechanism, the outer roller and the inner roller can rotate relatively when being stuck by the stone in the process of grinding the stone by the two grinding rollers, a slip detection mechanism for detecting whether the inner roller and the outer roller slip occurs is arranged on the crushing roller, the slip detection mechanism comprises a conductive strip, a guide sleeve, a cam, a push rod, a separation structure and two conductive rings, the conductive rings are distributed along the axial direction of the crushing roller, the cam and the conductive rings are coaxial with the crushing roller, the cam is fixed with the inner roller, the guide sleeve is fixed with the outer roller, the ejector rod extends along the radial direction of the crushing roller and is arranged in the guide sleeve in a penetrating mode, one end of the ejector rod is connected with the conductive strips, the other end of the ejector rod is aligned with the cam, the conductive strips are aligned with the two conductive rings at the same time, when the ejector rod is supported on the protruding portion of the cam, the ejector rod drives the conductive strips to abut against the two conductive rings at the same time to enable the two conductive rings to be conducted, the separation structure is used for driving the ejector rod to drive the conductive strips to be separated from the conductive rings when the ejector rod is staggered with the protruding portion of the cam, the conductive rings are fixed with the frame, and the driving motor, the counter and the conductive rings are electrically connected with the control unit; in the process of crushing stone by driving the crushing roller by the forward rotation of the driving motor, when the conducting ring is disconnected from the conducting bar, the counter starts to record the conducting times N of the conducting bar and the conducting ring, when the N reaches a set value, the control device enables the driving motor to rotate reversely for a set angle and then stops rotating for a set time, and then the forward rotation is carried out, and when the driving motor rotates reversely, the timer is reset; the stone moving structure moves the stone to be crushed between the two crushing drums during a period in which the control device stops after reversing the driving motor by a set angle.

9. The pair-roller sand making machine for stirring the stuck materials, according to claim 8, wherein the breaking structure is a spring, the spring is sleeved on a mandril, a supporting block is arranged on the mandril, one end of the spring is abutted with the guide sleeve, the other end of the spring is abutted with the supporting block, the cam is an outer cam, the conductive strip is arranged in the conductive ring in a penetrating way, and the supporting block is arranged at one end of the mandril facing the outer cam.

10. The pair-roller sand making machine capable of shifting the stuck-eliminating materials according to claim 8, wherein the two rolling cylinders are staggered in the axial direction, and one of the two conductive rings of the slippage detection mechanism in the two rolling cylinders and one of the two rolling cylinders is sleeved on one end of one rolling cylinder extending out of the other rolling cylinder.