Stone double-geared roller crusher

Abstract

The invention relates to the technical field of tooth roller crushing, in particular to a stone double-tooth-roller crusher which comprises a double-tooth-roller assembly and a digital display control panel, the double-tooth-roller assembly comprises two oppositely-arranged rollers, and one end of each roller is provided with a belt transmission driving assembly used for driving the roller to rotate; a screening assembly used for screening stone is arranged below the double-tooth-roller assembly. Through mutual cooperation and cooperation of the double-tooth roller assembly, the belt transmission driving assembly, the interval adjusting assembly and the like, independent driving rotation of the two rollers can be achieved, and on the basis, the interval adjusting assembly can adjust the interval between the two rollers; especially, the belt transmission driving assembly drives and adjusts the rollers to rotate, so that the distance between the two rollers can be adjusted under the condition that the machine is not closed, and real-time adjustment is facilitated after the stone crushing condition is judged.

Description

Technical Field

[0001] The invention relates to the field of toothed roller crushing equipment, in particular to a stone double-toothed roller crusher. Background Art

[0002] Double-tooth roller crusher is widely used in coal preparation industry for its low energy consumption and low over-crushing. Among them, the single-tooth welded structure is the most economical to use in the production process. The gap between the relatively staggered teeth and the tooth plate is used to control the crushing particle size. The working principle of the double-tooth roller crusher is to use two rollers rotating in opposite directions to squeeze, shear and split the material, so as to achieve material crushing. The driving mechanism is driven by two motors through V-belts to the groove wheel to drag the rollers, so that they move and rotate in relative directions. The material passes through the rollers from the feed inlet, is crushed by rolling, and the finished product is discharged from the bottom of the chassis.

[0003] A double-toothed roller crusher with publication number CN104069913B comprises a reducer, a pair of crushing rollers, a toothed ring and a spacer ring, wherein the toothed ring installed on the crushing roller adopts a grouped spiral tooth arrangement structure, that is, the toothed rings are grouped along the axial direction of the crushing roller, the groups are spirally distributed according to a certain angle difference, and there is no angle difference between the toothed rings in the same group along the axial direction of the crushing roller;

[0004] A rigid-flexible coupling strong double-toothed roller crusher for limestone crushing and a process thereof with publication number CN107866303B comprises a driving part, a transmission part and a crushing part connected in sequence, wherein the belt flexible connection structure is composed of an annular transmission belt, which is respectively connected to the output shaft of the reducer of the driving part and the crushing roller of the crushing part; the tensioning device is used in pairs, and is divided into an upper tensioning device and a lower tensioning device;

[0005] However, at present, when the distance between the two rollers of the double-toothed roller crusher is adjusted, it is affected by the structure of their respective driving parts. Structures such as tensioning wheels are often used to keep the transmission belt in a normal transmission state at all times. Then, during the adjustment process, it is often necessary to stop driving the rollers. In addition, the crushing and screening of stones often require two devices to complete, which not only takes up a large space but also affects the overall production efficiency. Summary of the invention

[0006] 1. Technical issues to be resolved

[0007] The purpose of the present invention is to provide a stone double-toothed roller crusher in order to solve the above-mentioned problems.

[0008] (II) Technical solution

[0009] To achieve the above object, the present invention provides the following technical solutions:

[0010] The present invention provides a double-toothed roller crusher for stone, comprising a double-toothed roller assembly and a digital display control panel, wherein the double-toothed roller assembly comprises two rollers arranged opposite to each other, one end of each roller is respectively provided with a belt transmission drive assembly for driving the roller to rotate, and a screening assembly for screening stone is provided below the double-toothed roller assembly;

[0011] A support structure for supporting the double-toothed roller assembly is disposed on the bottom side thereof, and a reciprocating deflection support structure for reciprocatingly supporting the screening material assembly is disposed on the support structure;

[0012] An eccentric wheel linkage mechanism is arranged between the double-toothed roller assembly and the screening material assembly. When the belt transmission drive assembly drives the roller to rotate, the roller can drive the screening material assembly to reciprocate under the support of the reciprocating deflection support structure through the eccentric wheel linkage mechanism.

[0013] The support structure is provided with a spacing adjustment component for adjusting the spacing between the two rollers. When the spacing adjustment component adjusts the spacing between the two rollers, the synchronous movement adjustment of the belt transmission drive component and the corresponding rollers can be achieved.

[0014] Furthermore, the double-toothed roller assembly includes a crushing shell covered on the outside of two rollers, a roller shaft is arranged at the center position of each roller, and an axle groove for sliding through the roller shaft is opened on the crushing shell, the axle groove is in a straight line shape and extends in the horizontal direction, the upper and lower sides of the crushing shell are open, a feed hopper is arranged at the upper opening of the crushing shell, and the outer contour of the feed hopper is a cone shape that is wide at the top and narrow at the bottom, the lower side of the crushing shell is open and faces the screening assembly, and a plurality of crushing tooth blocks are protruded and arranged on the outside of each roller, and the crushing tooth blocks on the two rollers are arranged crosswise and spaced from each other.

[0015] Furthermore, the belt transmission drive assembly includes a first pulley and a second pulley, the first pulley and the second pulley are meshed with each other and connected with a transmission belt, the central axis end of the first pulley and the corresponding roller end are fixedly connected to each other, and a driving motor for driving the second pulley to rotate is arranged at the central axis end, and the output end of the digital display control panel is electrically connected to the input end of the driving motor.

[0016] Furthermore, the spacing adjustment assembly includes a fixed seat rod and a dynamic seat rod arranged relatively to each other, the fixed seat rod is provided with a linear movement driving structure for driving the dynamic seat rod to move, and the connection between the roller shaft and the fixed seat rod is provided with an elastic slider structure for realizing elastic buffering of the two rollers moving in opposite directions, the driving motor is fixedly arranged on the dynamic seat rod through a motor seat, the first pulley and the second pulley are respectively rotatably arranged on the dynamic seat rod, and the output end of the digital display control panel is electrically connected to the input end of the driving motor.

[0017] The cam is an axially traversable chain which is adapted to move the hydraulic cylinder in a direction of rotation from one end of the hydraulic cylinder to the other end of the hydraulic cylinder to move the hydraulic cylinder in a direction of rotation from one end of the hydraulic cylinder to the other end of the hydraulic cylinder.

[0018] Furthermore, the elastic slider structure includes two second adjusting slots on the fixed seat rod, a third adjusting slot is provided on the fixed seat rod between the two second adjusting slots, a supporting slider is slidably arranged in each of the second adjusting slots, the supporting slider is fixedly connected to one end of two parallel second guide rods facing the third adjusting slot, the other end of the second guide rod slides and extends into the third adjusting slot, a buffer spring is fixedly connected between the side of the supporting slider away from the third adjusting slot and the inner end surface of the second adjusting slot, and the roller shaft is rotatably connected to the supporting slider through a bearing.

[0019] Furthermore, the screening material assembly includes a screening bucket, which has an outer shape of a cone that is wide at the top and narrow at the bottom. A plurality of screening shafts are evenly distributed in an arc direction between the two rollers are arranged at the upper opening of the screening bucket, and both ends of the screening shafts are inclined from high to low. Top cover plates are arranged on both sides of the upper part of the screening bucket, and a cleaning brush is arranged on each top cover plate through a seat plate.

[0020] Furthermore, the reciprocating deflection support structure includes two parallel distributed cross beams, the middle position of each cross beam is hinged to each other with the screening bucket through a hinge shaft, and both ends of the cross beam are fixedly connected with mounting rods, which are fixed to the support structure by bolts.

[0021] Furthermore, the eccentric wheel linkage mechanism includes an eccentric wheel fixedly arranged on a roller shaft, two parallel lifting guide rods are arranged below the eccentric wheel, upper ends of the two lifting guide rods are rotatably provided with upper abutting wheels for rolling contact with the eccentric wheel, lower ends of the two lifting guide rods are rotatably provided with lower abutting wheels for rolling contact with the upper surface of the top cover plate, upper pressure blocks and support blocks are fixedly arranged in the up and down directions respectively on the lifting guide rods between the upper abutting wheels and the lower abutting wheels, one side of the support block is fixedly connected to the support slider through more than two suspension rods, and a return spring is sleeved on the lifting guide rod between the support block and the upper pressure block.

[0022] Furthermore, the support structure includes four vertical poles distributed in a rectangular array, and the four vertical poles are fixedly connected to the lower sides of the two seat rods in groups of two. The lower end of each vertical pole is fixedly provided with a mounting base plate, and the mounting base plate has more than two mounting holes.

[0023] (III) Beneficial effects

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1. Through the cooperation and coordination between the double-toothed roller assembly, the belt transmission drive assembly and the spacing adjustment assembly, the two rollers can be driven and rotated independently. On this basis, the spacing adjustment assembly can adjust the spacing between the two rollers, especially the driving adjustment under the belt transmission drive assembly driving the rollers to rotate. Thus, the spacing between the two rollers can be adjusted without shutting down the machine, which is beneficial for real-time adjustment after judging the situation of the crushed stone;

[0026] 2. When the roller rotates, the eccentric wheel linkage mechanism realizes the linkage deflection drive of the screening bucket under the support of the reciprocating deflection support structure. The eccentric wheel linkage mechanism realizes the synchronous linkage between the double-toothed roller assembly and the screening material assembly. Even when the spacing adjustment assembly adjusts the spacing between the two rollers, the eccentric wheel linkage mechanism also realizes the synchronous linkage between the double-toothed roller assembly and the screening material assembly, thereby realizing the integration of stone crushing and screening and improving production efficiency;

[0027] 3. The distance between the two rollers can also be elastically buffered by the buffer spring, which can achieve micro-adjustment and change, making it easier for the crushing teeth to bite and crush the stone. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0030] Figure 2 The present invention Figure 1 Schematic diagram of the three-dimensional structure;

[0031] Figure 3 The present invention Figure 2 Schematic diagram of the internal three-dimensional structure;

[0032] Figure 4 The present invention Figure 3 A schematic diagram of a three-dimensional structure in an upward-looking direction;

[0033] Figure 5 The present invention Figure 4 A local enlarged structural schematic diagram;

[0034] Figure 6 It is a schematic diagram of the three-dimensional structure of the eccentric wheel linkage mechanism of the present invention;

[0035] Figure 7 It is a schematic diagram of the three-dimensional structure of the screening material assembly of the present invention;

[0036] Figure 8 It is a schematic diagram of the cross-sectional structure of the screening material assembly of the present invention;

[0037] Fig. 9 It is a schematic diagram of the matching structure of the roller shaft and the shaft-penetrating groove of the present invention.

[0038] The description of the accompanying drawings is as follows: 1. Double-toothed roller assembly; 101. Crushing shell; 102. Feed hopper; 103. Roller; 104. Crushing tooth block; 105. Roller shaft; 106. Shaft groove; 2. Belt transmission drive assembly; 201. First pulley; 202. Second pulley; 203. Transmission belt; 204. Drive motor; 205. Motor seat; 3. Screening assembly; 301. Screening bucket; 302. Top cover plate; 303. Screening shaft; 304. Seat plate; 305. Cleaning brush; 4. Reciprocating deflection support structure; 401. Crossbeam; 402. Articulated shaft; 403. Mounting rod; 5. Eccentric wheel linkage mechanism; 501. Eccentric wheel; 502. Upper wheel ;503, lifting guide rod;504, support block;505, suspension rod;506, lower wheel;507, reset spring;508, upper pressure block;6, spacing adjustment assembly;601, fixed seat rod;602, movable seat rod;603, first guide rod;604, hydraulic cylinder;605, first limiting sleeve;606, tightening bolt;607, second limiting sleeve;608, first adjustment slot;609, second adjustment slot;610, support slider;611, buffer spring;612, third adjustment slot;613, second guide rod;7, supporting structure;701, vertical pole;702, mounting base;703, mounting hole;8, digital display control panel. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical scheme and advantages of the present invention clearer, the technical scheme of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] See also Figure 1-Figure 9 As shown, the present invention provides a double-toothed roller crusher for stone, including a double-toothed roller assembly 1 and a digital display control panel 8, the double-toothed roller assembly 1 includes two rollers 103 arranged opposite to each other, one end of each roller 103 is respectively provided with a belt transmission drive assembly 2 for driving the roller 103 to rotate, a screening assembly 3 for screening stone is arranged below the double-toothed roller assembly 1; a supporting structure 7 for supporting the double-toothed roller assembly 1 is arranged on the bottom side thereof, and a reciprocating deflection support structure 4 for reciprocatingly supporting the screening assembly 3 is arranged on the support structure 7; an eccentric wheel linkage mechanism 5 is arranged between the double-toothed roller assembly 1 and the screening assembly 3, when the belt transmission drive assembly 2 drives the roller 103 to rotate, the roller 103 can drive the screening assembly 3 to reciprocate and deflect under the support of the reciprocating deflection support structure 4 through the eccentric wheel linkage mechanism 5.

[0041] The support structure 7 is provided with a spacing adjustment component 6 for adjusting the spacing between the two rollers 103 . When the spacing adjustment component 6 adjusts the spacing between the two rollers 103 , the synchronous movement adjustment of the belt transmission drive component 2 and the corresponding roller 103 can be achieved.

[0042] See the instruction manual Figure 2 , Figure 3 and Figure 6 As shown, the double-toothed roller assembly 1 includes a crushing shell 101 covered on the outside of two rollers 103. The overall outline of the crushing shell 101 is in the shape of a rectangular parallelepiped. The interior of the crushing shell 101 is hollow and opened on the upper and lower sides. A roller shaft 105 is arranged at the center position of each roller 103. The crushing shell 101 is provided with an axis-through groove 106 for sliding through the roller shaft 105. The axis-through groove 106 is in a straight line shape and extends in the horizontal direction. A feed hopper 102 is arranged at the upper opening of the crushing shell 101. The outline of the feed hopper 102 is in the shape of a cone with a wide top and a narrow bottom. The lower side of the crushing shell 101 is open and faces the screening assembly 3. A plurality of crushing tooth blocks 104 are protruded and arranged on the outside of each roller 103. The crushing tooth blocks 104 on the two rollers 103 are arranged crosswise with each other.

[0043] See the instruction manual Figure 2 As shown, the belt drive drive assembly 2 includes a first pulley 201 and a second pulley 202, the first pulley 201 and the second pulley 202 are meshed with each other and connected with a transmission belt 203, the central axis end of the first pulley 201 is fixedly connected to the corresponding end of the roller 105, the central axis end of the second pulley 202 is provided with a drive motor 204 for driving the rotation thereof, and the output end of the digital display control panel 8 is electrically connected to the input end of the drive motor 204. Through the above-mentioned specific structural design, the rotation of the output shaft of the drive motor 204 can drive the second pulley 202 to rotate, and the rotation of the second pulley 202 can drive the first pulley 201 to rotate through the transmission belt 203, thereby driving the corresponding connected roller 105 to rotate.

[0044] See the instruction manual Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, the spacing adjustment component 6 includes a fixed seat rod 601 and a moving seat rod 602 which are arranged relatively to each other. In actual application, the fixed seat rod 601 and the moving seat rod 602 form an overall shape of a rectangular frame, and two connecting notches are formed between the fixed seat rod 601 and the moving seat rod 602. A linear moving driving structure for driving the moving seat rod 602 to move is provided on the fixed seat rod 601. An elastic slider structure for realizing elastic buffering of the two rollers 103 moving in opposite directions is provided at the connection between the roller shaft 105 and the fixed seat rod 601. The driving motor 204 is fixedly arranged on the moving seat rod 602 through the motor seat 205. The first pulley 201 and the second pulley 202 are respectively rotatably arranged on the moving seat rod 602. The output end of the digital display control panel 8 is electrically connected to the input end of the driving motor 204. The linear motion driving structure includes a hydraulic cylinder 604 fixedly arranged on the fixed seat rod 601, the hydraulic cylinder 604 is located in one of the connection gaps, a first adjusting slot 608 is provided inside the movable seat rod 602 near one end of the hydraulic cylinder 604, the push rod head end of the hydraulic cylinder 604 slides and extends into the first adjusting slot 608 and is fixedly sleeved with a second limiting sleeve 607, a first limiting sleeve 605 is sleeved on the push rod of the hydraulic cylinder 604 located between the fixed seat rod 601 and the movable seat rod 602, and a threaded connection is provided on the first limiting sleeve 605 for realizing the adjustment of the push rod of the hydraulic cylinder 604 Abutting against the tightening bolt 606, two parallel distributed first guide rods 603 are also arranged between the fixed seat rod 601 and the movable seat rod 602, one end of the two first guide rods 603 is fixedly connected to the fixed seat rod 601, and the other end of the two first guide rods 603 is slidably connected to the first guide sliding holes opened at the corresponding positions of the movable seat rod 602, the first guide rod 603 is located in the other connecting notch, the axial direction of the first guide rod 603 is consistent with the extension and retraction direction of the push rod of the hydraulic cylinder 604, and the output end of the digital display control panel 8 is electrically connected to the input end of the hydraulic cylinder 604. The elastic slider structure includes two second adjustment slots 609 provided on the fixed seat rod 601, and a third adjustment slot 612 is provided on the fixed seat rod 601 between the two second adjustment slots 609. A support slider 610 is slidably provided in each second adjustment slot 609. The support slider 610 is fixedly connected to one end of two parallel second guide rods 613 toward the side of the third adjustment slot 612, and the other end of the second guide rod 613 slides and extends into the third adjustment slot 612. A buffer spring 611 is fixedly connected between the side of the support slider 610 away from the third adjustment slot 612 and the inner end surface of the second adjustment slot 609, and the roller shaft 105 is rotatably connected to the support slider 610 through a bearing.Through the above-mentioned specific structural design, the spacing adjustment component 6 can realize the adjustment of the spacing between the two rollers 103, especially the drive adjustment under the driving rotation of the roller 103 by the belt transmission drive component 2, so that the spacing between the two rollers 103 can be adjusted without shutting down the machine, which is beneficial for real-time adjustment after judging the situation of crushing stone.

[0045] See the instruction manual Figure 4 , Figure 7 and Figure 8 As shown, the screening component 3 includes a screening bucket 301, which is in the shape of a cone that is wide at the top and narrow at the bottom. A plurality of screening shafts 303 are evenly distributed in an arc direction along the direction between the two rollers 103 are arranged at the upper opening of the screening bucket 301. The two ends of the screening shafts 303 are inclined from high to low. Top cover plates 302 are arranged on both sides of the upper part of the screening bucket 301. A cleaning brush 305 is arranged on each top cover plate 302 through a seat plate 304. Through the above-mentioned specific structural design, the screening component 3 can not only screen the crushed stone, but also brush and clean the roller 103 by the cleaning brush 305, so that the crushed stone on the roller 103 is cleaned and falls into the screening bucket 301 to avoid accumulation in other places in the crushing shell 101.

[0046] The reciprocating deflection support structure 4 includes two parallel cross beams 401, the middle position of each cross beam 401 is hinged to the screening bucket 301 through a hinge shaft 402, and the two ends of the cross beam 401 are fixedly connected with mounting rods 403, which are fixedly arranged on the support structure 7 by bolts. In practical applications, the reciprocating deflection support structure 4 can realize the hinged support of the screening bucket 301, so that the eccentric wheel linkage mechanism 5 can realize the reciprocating deflection rotation of the screening bucket 301 when the roller 103 rotates.

[0047] The eccentric wheel linkage mechanism 5 includes an eccentric wheel 501 fixedly set on the roller shaft 105, and two parallel lifting guide rods 503 are arranged below the eccentric wheel 501. The upper ends of the two lifting guide rods 503 are rotatably provided with upper abutting wheels 502 for rolling abutment with the eccentric wheel 501, and the lower ends of the two lifting guide rods 503 are rotatably provided with lower abutting wheels 506 for rolling abutment with the upper surface of the top cover plate 302. The lifting guide rod 503 located between the upper abutting wheels 502 and the lower abutting wheels 506 is respectively fixedly provided with an upper pressure block 508 and a sliding support block 504 in the upper and lower directions. One side of the support block 504 is fixedly connected to the support slider 610 through more than two suspension rods 505, and a reset spring 507 is sleeved on the lifting guide rod 503 located between the support block 504 and the upper pressure block 508.

[0048] The supporting structure 7 includes four vertical poles 701 distributed in a rectangular array. The four vertical poles 701 are fixedly connected to the lower sides of the two seat rods 601 in groups of two. A mounting base plate 702 is fixedly provided at the lower end of each vertical pole 701. The mounting base plate 702 has two or more mounting holes 703.

[0049] Working principle and technical effect of the present invention:

[0050] The two rollers 103 are driven by the corresponding belt drive drive assembly 2 to rotate independently, and the two rollers 103 rotate synchronously in opposite directions to crush the stone. After the crushing tooth block 104 engages to crush the stone, the crushed stone falls downward into the screening bucket 301 of the screening assembly 3. When the rollers 103 rotate, the eccentric wheel linkage mechanism 5 realizes the linkage deflection drive of the screening bucket 301 supported by the reciprocating deflection support structure 4. The screening bucket 301 screens the stone through the screening shaft 303. The large stone slides from high to low along the axial direction of the screening shaft 303, thereby realizing the screening of the crushed stone. The eccentric wheel linkage mechanism 5 realizes the synchronous linkage between the double-toothed roller assembly 1 and the screening assembly 3, and even when the spacing adjustment assembly 6 adjusts the spacing between the two rollers 103, the eccentric wheel linkage mechanism 5 also realizes the synchronous linkage between the double-toothed roller assembly 1 and the screening assembly 3.

[0051] When the spacing adjustment component 6 adjusts the spacing between the two rollers 103, the push rod of the hydraulic cylinder 604 is extended and retracted. When the spacing between the two rollers 103 is increased, the push rods of the hydraulic cylinders 604 of the two spacing adjustment components 6 are extended at the same time, and the first limiting sleeve 605 and the end of the movable seat rod 602 abut against each other, thereby pushing the movable seat rod 602 away from the fixed seat rod 601 along the axial direction of the first guide rod 603. At this time, the movable seat rod 602 can simultaneously drive the belt transmission drive component 2 to move, and will not affect the rotational drive of the belt transmission drive component 2 on the roller 103. The spacing between the two rollers 103 can also be elastically buffered by the buffer spring 611 to achieve micro-adjustment changes, which is convenient for the crushing tooth block 104 to achieve bite and crushing of the stone;

[0052] When the eccentric wheel linkage mechanism 5 realizes the linkage function, the rotation of the roller shaft 105 can drive the eccentric wheel 501 to rotate, and the rotation of the eccentric wheel 501 can roll and abut against the upper abutment wheel 502. The eccentric wheel linkage mechanism 5 located on the two roller shafts 105 can alternately press the screening component 3 to the left and right, thereby realizing the reciprocating deflection of the screening component 3 under the support of the reciprocating deflection support structure 4, thereby realizing the shaking screening of stones by the screening component 3, and improving the effect and efficiency of stone screening.

[0053] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A double-toothed roller crusher for stone, characterized in that: The invention comprises a double-toothed roller assembly (1) and a digital display control panel (8), wherein the double-toothed roller assembly (1) comprises two rollers (103) arranged opposite to each other, one end of each roller (103) is provided with a belt drive assembly (2) for driving the roller to rotate, and a screening assembly (3) for screening stones is provided below the double-toothed roller assembly (1); A support structure (7) for supporting the double-toothed roller assembly (1) is disposed on the bottom side thereof, and a reciprocating deflection support structure (4) for reciprocatingly supporting the screening material assembly (3) is disposed on the support structure (7); An eccentric wheel linkage mechanism (5) is provided between the double-toothed roller assembly (1) and the screening material assembly (3); when the belt transmission drive assembly (2) drives the roller (103) to rotate, the roller (103) can drive the screening material assembly (3) to reciprocate under the support of the reciprocating deflection support structure (4) through the eccentric wheel linkage mechanism (5); The support structure (7) is provided with a spacing adjustment component (6) for adjusting the spacing between the two rollers (103); when the spacing adjustment component (6) adjusts the spacing between the two rollers (103), synchronous movement adjustment of the belt transmission drive component (2) and the corresponding roller (103) can be achieved.

2. A double-toothed roller crusher for stone materials according to claim 1, characterized in that: The double-toothed roller assembly (1) comprises a crushing shell (101) which is covered on the outside of two rollers (103), a roller shaft (105) is arranged at the center of each roller (103), the crushing shell (101) is provided with an axle-through groove (106) for sliding through the roller shaft (105), the axle-through groove (106) is in a straight line shape and extends in a horizontal direction, the upper and lower sides of the crushing shell (101) are open, a feed hopper (102) is arranged at the upper opening of the crushing shell (101), the outer profile of the feed hopper (102) is in a cone shape with a wide top and a narrow bottom, the lower side of the crushing shell (101) is open and faces the screening assembly (3), the outer side of each roller (103) is provided with a plurality of crushing tooth blocks (104) protrudingly distributed, and the crushing tooth blocks (104) on the two rollers (103) are arranged crosswise and spaced from each other.

3. The double-toothed roller crusher for stone according to claim 1, characterized in that: The belt transmission drive assembly (2) comprises a first pulley (201) and a second pulley (202), the first pulley (201) and the second pulley (202) being meshed with each other and connected with a transmission belt (203), the central axis end of the first pulley (201) and the corresponding end of the roller (105) being fixedly connected to each other, the central axis end of the second pulley (202) being provided with a driving motor (204) for driving the second pulley (202) to rotate, and the output end of the digital display control panel (8) being electrically connected to the input end of the driving motor (204).

4. A double-toothed roller crusher for stone materials according to claim 3, characterized in that: The spacing adjustment component (6) comprises a fixed seat rod (601) and a moving seat rod (602) arranged opposite to each other, the fixed seat rod (601) is provided with a linear movement driving structure for driving the moving seat rod (602) to move, an elastic slider structure for realizing elastic buffering when the two rollers (103) move in opposite directions is provided at the connection between the roller shaft (105) and the fixed seat rod (601), the driving motor (204) is fixedly arranged on the moving seat rod (602) through the motor seat (205), the first pulley (201) and the second pulley (202) are respectively rotatably arranged on the moving seat rod (602), and the output end of the digital display control panel (8) is electrically connected to the input end of the driving motor (204).

5. A double-toothed roller crusher for stone materials according to claim 4, characterized in that: The linear motion driving structure comprises a hydraulic cylinder (604) fixedly arranged on a fixed seat rod (601); a first adjusting slot (608) is provided inside one end of the movable seat rod (602) close to the hydraulic cylinder (604); a push rod head end of the hydraulic cylinder (604) slides and extends into the first adjusting slot (608) and is fixedly sleeved with a second limiting sleeve (607); a first limiting sleeve (605) is sleeved on the push rod of the hydraulic cylinder (604) located between the fixed seat rod (601) and the movable seat rod (602); a threaded connection is provided on the first limiting sleeve (605) for realizing adjustment of the hydraulic cylinder (604); The push rod is abutted against a tightening bolt (606) for tightening, and two parallel first guide rods (603) are arranged between the fixed seat rod (601) and the movable seat rod (602). One end of the two first guide rods (603) is fixedly connected to the fixed seat rod (601), and the other end of the two first guide rods (603) is slidably connected to the first guide sliding holes provided at the corresponding positions of the movable seat rod (602). The axial direction of the first guide rod (603) is consistent with the extension and retraction direction of the push rod of the hydraulic cylinder (604), and the output end of the digital display control panel (8) is electrically connected to the input end of the hydraulic cylinder (604).

6. A double-toothed roller crusher for stone materials according to claim 4, characterized in that: The elastic slider structure comprises two second adjustment slots (609) provided on the fixed seat rod (601); a third adjustment slot (612) is provided on the fixed seat rod (601) between the two second adjustment slots (609); a support slider (610) is slidably provided in each of the second adjustment slots (609); the support slider (610) is fixedly connected to one end of two parallel second guide rods (613) on the side facing the third adjustment slot (612); the other end of the second guide rod (613) slides and extends into the third adjustment slot (612); a buffer spring (611) is fixedly connected between the side of the support slider (610) away from the third adjustment slot (612) and the inner end surface of the second adjustment slot (609); and the roller shaft (105) is rotatably connected to the support slider (610) via a bearing.

7. The double-toothed roller crusher for stone materials according to claim 1, characterized in that: The screening material assembly (3) comprises a screening bucket (301), the outer shape of the screening bucket (301) is a cone shape that is wide at the top and narrow at the bottom, a plurality of screening shafts (303) are arranged at the upper opening of the screening bucket (301) and are evenly distributed in an arc direction along the direction between the two rollers (103), and the two ends of the screening shafts (303) are arranged to be inclined from high to low, and top cover plates (302) are arranged on both sides of the upper part of the screening bucket (301), and a cleaning brush (305) is arranged on each top cover plate (302) through a seat plate (304).

8. A double-toothed roller crusher for stone materials according to claim 7, characterized in that: The reciprocating deflection support structure (4) comprises two parallel distributed cross beams (401), the middle position of each cross beam (401) is hinged to the screening bucket (301) via a hinge shaft (402), and the two ends of the cross beam (401) are fixedly connected with mounting rods (403), and the mounting rods (403) are fixedly arranged on the support structure (7) via bolts.

9. The stone double-toothed roller crusher according to claim 1, characterized in that: The eccentric wheel linkage mechanism (5) comprises an eccentric wheel (501) fixedly arranged on a roller shaft (105), two parallel lifting guide rods (503) are arranged below the eccentric wheel (501), upper ends of the two lifting guide rods (503) are rotatably provided with upper abutting wheels (502) for rolling contact with the eccentric wheel (501), and lower ends of the two lifting guide rods (503) are rotatably provided with lower abutting wheels (506) for rolling contact with the upper surface of the top cover plate (302). ), an upper pressing block (508) and a supporting block (504) are fixedly arranged in the up and down directions on the lifting guide rod (503) located between the upper push wheel (502) and the lower push wheel (506), and a supporting block (504) is slidably arranged, one side of the supporting block (504) is fixedly connected to the supporting sliding block (610) through more than two suspension rods (505), and a return spring (507) is sleeved on the lifting guide rod (503) located between the supporting block (504) and the upper pressing block (508).

10. The stone double-toothed roller crusher according to claim 1, characterized in that: The support structure (7) comprises four vertical poles (701) distributed in a rectangular array, wherein the four vertical poles (701) are fixedly connected to the lower sides of two seat rods (601) in groups of two, and a mounting base plate (702) is fixedly provided at the lower end of each vertical pole (701), and the mounting base plate (702) is provided with more than two mounting holes (703).

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