CN214514872U - Double-geared roller crusher with high crushing ratio - Google Patents

Abstract

The technology discloses a double-geared roller crusher with a high crushing ratio, which comprises a crusher shell, a first geared roller shaft, a second geared roller shaft, a first coupler, a second coupler, a first speed reducer, a second speed reducer, a first hydraulic coupler, a second hydraulic coupler, a first motor, a second motor, a hydraulic jack, a bolt support, a crushing beam fixing bolt, a crushing beam and lower crushing teeth; a plurality of rows of roller teeth are distributed on the first gear roller shaft along the axial direction; a plurality of rows of roller teeth are distributed on the second gear roller shaft along the axial direction; the first tooth roller shaft and the second tooth roller shaft are arranged in the crusher shell in parallel; the bolt support is positioned on the hydraulic jack and is connected with the end plate of the crushing beam through a fixing bolt of the crushing beam, and the crushing beam is connected with lower crushing teeth. The technology can crush the materials for three times, and the crushing ratio is high; the granularity of the finished product can be strictly controlled; the crushing of large materials can be carried out, and the crushing efficiency is high; the blanking on the whole gear roller shaft is relatively uniform, and the crushing capacity is high.

Description

Double-geared roller crusher with high crushing ratio

Technical Field

The technology belongs to mining mechanical equipment, and particularly relates to a double-geared roller crusher with a high crushing ratio.

Background

In industrial production, mining field, the breaker has very extensive application, wherein double toothed roller crusher collects the advantage of roll-in and impact crusher as an organic whole, compact structure, crushing efficiency is high, the broken power of consumption is little and favour, because the demand is flourishing, the model that each type is various has emerged in the market, but the broken principle is roughly the same, all be two parallel roller relative rotations, the material enters into behind the V type clearance of two toothed rollers, receives the relative extrusion of two toothed rollers and cuts and carry out the breakage. The two ends of the equipment are provided with spring devices for adjusting the pressure between the two rollers, and the gap between the two toothed rollers determines the particle size of the finished product. After meeting the material bigger or the uncrushable thing and entering the equipment, the fluted roller can give way automatically to protect equipment not receive the damage. The main drawbacks of this type of machine are: (1) the material is rolled by two rollers at one time to become a finished product, and the crushing ratio is low; (2) the tooth roller can automatically give way, so the granularity of the finished product cannot be strictly controlled; (3) the roller teeth are fine and various, the impact capability is weak, tearing is mainly used as a main crushing form, and only small materials can be crushed. (4) The roller teeth are uniformly arranged in a simple linear mode, the quantity of the roller teeth stressed simultaneously is small, the crushing efficiency is low, materials at the feed inlet are concentrated, the middle of the toothed roller is prone to abrasion or bending, and the service life of equipment is influenced. Therefore, in order to meet the current situation, a brand new double-geared roller crusher needs to be developed urgently to meet the practical application requirements.

Disclosure of Invention

The technical problem to be solved by the technology is to provide a double-geared roller crusher with a high crushing ratio aiming at the defects of the prior art, the double-geared roller crusher with the high crushing ratio can crush materials for three times, and the crushing ratio is high; the distance between the first gear roller shaft and the second gear roller shaft is fixed and unchanged, and the influence on the granularity of a finished product caused by automatic yielding of the gear rollers can be avoided; the crushing of large materials can be carried out, and the crushing efficiency is high; the special arrangement mode of the roller teeth can force the massive materials in the middle to be shunted to two ends, so that the blanking on the whole toothed roller shaft is uniform, and the crushing capacity is improved.

In order to achieve the technical purpose, the technical scheme adopted by the technology is as follows:

a double-geared roller crusher with a high crushing ratio comprises a crusher shell, a first geared roller shaft, a second geared roller shaft, a first coupler, a second coupler, a first speed reducer, a second speed reducer, a first hydraulic coupler, a second hydraulic coupler, a first motor, a second motor, a hydraulic jack, a bolt support, a crushing beam fixing bolt, a crushing beam and lower crushing teeth;

a plurality of rows of roller teeth are distributed on the first gear roller shaft along the axial direction, and the starting angles of the plurality of rows of roller teeth are sequentially decreased from the central part of the first gear roller shaft to two ends, so that the plurality of rows of roller teeth are arranged in a V shape;

a plurality of rows of roller teeth are distributed on the second gear roller shaft along the axial direction, and the starting angles of the plurality of rows of roller teeth are sequentially decreased from the central part of the second gear roller shaft to two ends, so that the plurality of rows of roller teeth are arranged in a V shape;

the first tooth roll shaft and the second tooth roll shaft are arranged in the crusher shell in parallel, two end parts of the first tooth roll shaft are rotatably connected with the crusher shell, two end parts of the second tooth roll shaft are rotatably connected with the crusher shell, and the roll teeth on the first tooth roll shaft and the roll teeth on the second tooth roll shaft are arranged in a staggered manner;

the first motor is connected with a first fluid coupling, the first fluid coupling is connected with a first speed reducer, the first speed reducer is connected with a first coupler, and the first coupler is connected with the end part of a first gear roll shaft; the second motor is connected with a second hydraulic coupler, the second hydraulic coupler is connected with a second speed reducer, the second speed reducer is connected with a second coupler, and the second coupler is connected with the end part of a second gear roll shaft;

the bolt support is positioned on the hydraulic jack and connected with an end plate of the crushing beam through a crushing beam fixing bolt, and a plurality of lower crushing teeth are connected to the crushing beam; and a lower crushing tooth is arranged below each row of the roller teeth.

As a further improvement of the technology, the number of each row of the roller teeth on the first toothed roller shaft is three, and the three roller teeth are uniformly distributed in the circumferential direction of the first toothed roller shaft; the number of each row of roller teeth on the second gear roller shaft is three, and the three roller teeth are uniformly distributed in the circumferential direction of the second gear roller shaft.

As a further improvement of the present technology, the roller teeth include a toothed plate, a toothed head, an impact bolt, an open elastic cylindrical pin and an adjustment washer, the toothed plate is fixedly connected to the first toothed roller shaft and the second toothed roller shaft, the tail of the toothed plate is provided with a tooth root, the head of the toothed plate is provided with a toothed plate through hole, the toothed plate through hole is formed by communicating an impact bolt mounting hole and a toothed head mounting hole, the side wall of the toothed head mounting hole is further provided with a lateral pin hole, the toothed head is provided with a circle of circular tooth groove for matching with the lateral pin hole, the impact bolt is inserted into the impact bolt mounting hole of the toothed plate through hole and is in clearance fit with the toothed plate through hole, the adjustment washer is sleeved on the tail shaft of the toothed head, the tail shaft of the toothed head is inserted into the toothed head mounting hole of the toothed plate through hole and is aligned with the lateral pin hole on the toothed plate, the split elastic cylindrical pin is inserted into the circular tooth groove and the lateral pin hole.

As a further improvement of the technology, the crusher housing comprises a left end wall plate, a right end wall plate, a front side wall plate and a rear side wall plate, wherein the left end wall plate, the front side wall plate, the right end wall plate and the rear side wall plate are sequentially connected to form a closed rectangular crusher housing; the two end parts of the first gear roller shaft are respectively and rotatably connected with the left end wallboard and the right end wallboard through bearings, and the two end parts of the second gear roller shaft are respectively and rotatably connected with the left end wallboard and the right end wallboard through bearings.

As a further improvement of the technology, the starting angles of the multiple rows of the roller teeth on the first tooth roller shaft are sequentially decreased by 10 degrees from the central part of the first tooth roller shaft to two ends; the initial angles of the multiple rows of the roller teeth on the second gear roller shaft are sequentially decreased by 10 degrees from the central part of the second gear roller shaft to two ends; and the lower crushing teeth are fixedly connected with the crushing beam through bolts.

As a further improvement of the technology, a base is arranged under the bolt support, an adjusting gasket is arranged between the bolt support and the base in a cushioning manner, and the bolt support is fixedly connected with the base through a bolt.

As a further improvement of the technology, the bolt support has two, and the both ends board fixed connection through broken roof beam fixing bolt and broken roof beam respectively, the bolt support includes bottom plate and two bolt fastening board, and two bolt fastening board fixed connection are on the bottom plate, and two bolt fastening board are respectively through the end plate fixed connection of broken roof beam fixing bolt and broken roof beam, the bottom plate of bolt support is located hydraulic jack, it has the adjusting shim to fill up really between bottom plate and the base.

As a further improvement of the technology, the crushing device further comprises a bolt protective cover, and the bolt protective cover is fixedly connected to the bolt support and the crushing beam fixing bolt through bolts.

As the further improvement scheme of this technique, still include foundation frame, upper angle steel fender bracket and lower angle steel fender bracket, crusher housing's bottom fixed connection has foundation frame, go up angle steel fender bracket fixed connection on foundation frame, lower angle steel fender bracket fixed connection is on bolt support's bottom plate, it is located lower angle steel fender bracket top and upper angle steel fender bracket and lower angle steel fender bracket wrong limit and arranges to go up the angle steel fender bracket, the bolt visor is located the inboard of upper angle steel fender bracket and lower angle steel fender bracket.

As the further improvement scheme of this technique, still include a plurality of welts, equal a plurality of welts of fixedly connected with on preceding side wall board and the rear side wall board, the welt on the preceding side wall board is located between the epaxial adjacent row's of first fluted roller, the welt on the rear side wall board is located between the epaxial adjacent row's of second fluted roller.

The beneficial effect of this technique does:

1. the crushing ratio is large:

the material is from the center feeding between first tooth roller axle and the second tooth roller axle (two tooth roller axles for short), when falling, the last tooth that receives the epaxial roller tooth of two tooth roller is to rolling impact, the first stage that the centre gripping was cuted and is produced is broken, when the material passes through between two tooth roller axles, the last tooth root that receives the roller tooth is to rolling the second stage that the extrusion produced and broken, when the material goes out the tooth roller axle, the combined action of the last tooth of the epaxial roller tooth of receiving tooth roller and the lower broken tooth on the broken roof beam implements the third stage fine crushing to the fragment that two preceding stages produced. Therefore, large materials enter and small crushed materials flow out, and the crushing ratio is improved.

2. The granularity of the finished product is convenient to control:

through the lift of control hydraulic jack, raise or reduce broken roof beam, make the clearance change between the lower broken tooth on the broken roof beam and the tooth on two tooth roller shafts between the tooth head to reach the mesh of adjusting clearance control finished product granularity, and the interval is fixed unchangeable between first tooth roller shaft and the second tooth roller shaft, the automatic letting back of fluted roller can not appear and influence the finished product granularity.

3. Can even cloth, crushing ability is strong, efficient:

the V-shaped arrangement mode of the crushing roller teeth on the two toothed roller shafts can force the large materials in the middle to be shunted to two ends, so that the blanking on the whole toothed roller shaft is more uniform, the crushing and the discharge of the materials are facilitated, and the crushing capacity is improved. The roller teeth are provided with the upper tooth heads and the upper tooth roots, the crushing capacity is strong, and the large materials in the center of the shell can be shunted to two ends, so that the large materials can be crushed. On the other hand, the roller tooth arrangement mode is closer to material contour profiles with different sizes, the quantity of the roller teeth stressed simultaneously can be increased, and therefore the crushing efficiency is improved.

4. Has the double functions of sieving and crushing:

two tooth roller shafts are fixedly installed, the relative motion of the two tooth roller shafts is like a rotary grid sieve, and materials meeting the requirement of granularity are firstly leaked from a roller tooth gap to realize primary screening, so that the materials can be prevented from being crushed again through the roller tooth, the over-crushing rate and the energy consumption of the materials are reduced, the crushing time of the roller tooth is shortened, and the service life is prolonged. The movement of the roller teeth also enables the materials to be forcibly discharged after being crushed, so that the roller teeth are not easy to block, and can adapt to the crushing of viscous materials and materials with higher moisture.

5. The protection device is safe and reliable:

the moment-limiting hydraulic coupler is connected between the motor and the speed reducer of the crusher, on one hand, impact force generated during crushing can be absorbed, so that the machine operates stably, on the other hand, the whole machine is protected safely, and once the inside of the equipment is blocked or overloaded, the hydraulic coupler can automatically cut off the transmission of the power, so that the motor idles, and the motor, the gear roller shaft and the roller teeth are protected.

6. The tooth head on the roller tooth is convenient to detach and replace:

this technique makes the most easy wearing and tearing tooth head design into the independent monomer of detachable, can make a batch spare part tooth head in advance with planning, when tooth head wearing and tearing need be changed, as long as will be connected with the pinion rack open elastic cylindrical pin rush out, just can convenient and fast ground change the tooth head, maintenance duration is short, greatly reduced easy-to-wear part cost of maintenance moreover.

Drawings

Fig. 1 is a schematic structural diagram of a crusher of the present technology.

FIG. 2 is a cross-sectional view of a first or second gear roller shaft according to the present technology.

Fig. 3 is a sectional view taken along line F-F in fig. 2.

FIG. 4 is a schematic view of a tooth arrangement according to the present technique.

Fig. 5 is a sectional view taken along line a-a in fig. 1.

Fig. 6 is a cross-sectional view taken along line B-B of fig. 1.

Fig. 7 is an enlarged view of a portion of the structure of fig. 6.

Fig. 8 is a schematic view of the tooth head structure of the present technology.

Fig. 9 is a schematic view of the first gear roller shaft and the second gear roller shaft hidden in fig. 1.

Fig. 10 is a cross-sectional view taken along line C-C of fig. 9.

Fig. 11 is a cross-sectional view taken along line D-D of fig. 10.

Fig. 12 is a cross-sectional view taken along line E-E of fig. 9.

Fig. 13 is a partial enlarged view of a in fig. 12.

Fig. 14 is a schematic view of a bolt support structure according to the present technology.

Fig. 15 is a sectional view taken along line G-G in fig. 14.

Fig. 16 is a sectional view taken along line H-H in fig. 14.

Detailed Description

Embodiments of the present technology are further described below with reference to the accompanying drawings:

as shown in fig. 1 and 12, a high crushing ratio double-geared roller crusher includes a crusher housing 7, a first gear roller shaft 5, a second gear roller shaft 16, a first coupling 12, a second coupling 4, a first speed reducer 13, a second speed reducer 3, a first fluid coupling 14, a second fluid coupling 2, a first motor 15, a second motor 1, a hydraulic jack 24, a bolt bracket 27, a crushing beam fixing bolt 26, an adjusting shim 28, a crushing beam 11, and a lower crushing tooth 10.

As shown in fig. 2 and 3, a plurality of rows of teeth 17 are axially and equidistantly distributed on the first tooth roller shaft 5, and the starting angles of the plurality of rows of teeth 17 are sequentially decreased by 10 ° from the central part of the first tooth roller shaft 5 to both ends, so that the plurality of rows of teeth 17 are arranged in a V shape, as shown in fig. 4.

Similarly, as shown in fig. 2 and fig. 3, a plurality of rows of teeth 17 are distributed on the second gear roll shaft 16 at equal intervals along the axial direction, and the starting angles of the plurality of rows of teeth 17 are sequentially decreased by 10 ° from the central portion of the second gear roll shaft 16 to both ends, so that the plurality of rows of teeth 17 are arranged in a V shape, as shown in fig. 4.

As shown in fig. 1, 5 and 6, the first tooth roller shaft 5 and the second tooth roller shaft 16 are arranged in parallel in the crusher housing 7, both ends of the first tooth roller shaft 5 are respectively and rotatably connected with the crusher housing 7 through bearings (i.e. supported on the crusher housing 7 through bearings), both ends of the second tooth roller shaft 16 are respectively and rotatably connected with the crusher housing 7 through bearings (i.e. supported on the crusher housing 7 through bearings), the distance between the first tooth roller shaft 5 and the second tooth roller shaft 16 is constant, and the tooth roller is not allowed to automatically yield and affect the granularity of the finished product. The roller teeth 17 on the first gear roller shaft 5 and the roller teeth 17 on the second gear roller shaft 16 are arranged in a staggered mode.

As shown in fig. 1, the first motor 15 is connected to a first fluid coupling 14, the first fluid coupling 14 is connected to a first speed reducer 13, the first speed reducer 13 is connected to a first coupling 12, and the first coupling 12 is connected to an end of the first gear roller shaft 5; the second motor 1 is connected with a second hydraulic coupler 2, the second hydraulic coupler 2 is connected with a second speed reducer 3, the second speed reducer 3 is connected with a second coupler 4, and the second coupler 4 is connected with the end of a second gear roll shaft 16. The embodiment adopts the double motors, the double hydraulic couplers and the double gear boxes to directly drive the double gear rollers to roll in a centripetal manner, so as to smash, cut and extrude the materials, complete the crushing process of the materials and achieve the required particle size of the products. The first gear roller shaft 5 and the second gear roller shaft 16 of the embodiment are respectively connected with the speed reducer through the coupler, and the motor drives the speed reducer through the fluid coupling, so that the first gear roller shaft 5 and the second gear roller shaft 16 are driven to rotate at a high speed in a centripetal direction.

As shown in fig. 9 to 13, the bolt bracket 27 is located on the hydraulic jack 24, the bolt bracket 27 is connected with an end plate of the crushing beam 11 through a crushing beam fixing bolt 26, the crushing beam 11 is located below between the first gear roller shaft 5 and the second gear roller shaft 16, the crushing beam 11 is clamped with a plurality of lower crushing teeth 10 through clamping grooves on the crushing beam 11, and the lower crushing teeth 10 are fixedly connected with the crushing beam 11 through bolts. A lower crushing tooth 10 is arranged below each row of the roller teeth 17.

In this embodiment, as shown in fig. 6, the number of each row of teeth 17 on the first tooth roller shaft 5 is three, and the three teeth 17 are uniformly distributed in the circumferential direction of the first tooth roller shaft 5; similarly, in fig. 6, the number of each row of teeth 17 on the second gear roller shaft 16 is three, and the three teeth 17 are uniformly distributed in the circumferential direction of the second gear roller shaft 16; the front end part of the roller teeth 17 is provided with an upper tooth head 9, and the rear end part is provided with an upper tooth root 8.

In this embodiment, as shown in fig. 7 and 8, the roller teeth 17 include a toothed plate 35, a toothed head 9, an impact bolt 36, an open elastic cylindrical pin 37 and an adjustment washer 38, the toothed plate 35 is fixedly connected to the first toothed roller shaft 5 and the second toothed roller shaft 16 in a welding manner, a tooth root 8 is disposed at the tail of the toothed plate 35, a toothed plate through hole is formed in the head of the toothed plate 35, the toothed plate through hole is formed by communicating an impact bolt mounting hole 39 and a toothed head mounting hole 40, a lateral pin hole is further formed in the side wall of the toothed head mounting hole 40, a circular tooth groove 43 matched with the lateral pin hole is formed in the toothed head 9, the impact bolt 36 is inserted into the impact bolt mounting hole 39 of the toothed plate through hole, the impact bolt 36 is in clearance fit with the toothed plate through hole, the adjustment washer 38 is sleeved on the tail shaft of the toothed head 9, the tail shaft of the toothed head 9 is inserted into the toothed head mounting hole 40 of the toothed plate through hole, and the circular tooth groove 43 in the toothed head 9 and the toothed plate 35 The lateral pin holes are aligned and the split resilient cylindrical pin 37 is inserted in the circular spline 43 and the lateral pin hole. The outer surface of the tooth root 8 of the tooth plate 35 is welded with a wear resistant layer 42. The opening elastic cylindrical pin 37 is cylindrical, a strip-shaped opening is formed in the surface of the opening elastic cylindrical pin 37, and the opening elastic cylindrical pin 37 is made of spring steel. The inside of the tooth head mounting hole 40 is provided with a wear-resistant sleeve 41, the wear-resistant sleeve 41 is tightly matched with the inner wall of the tooth head mounting hole 40, and the tail shaft of the tooth head 9 is inserted into the wear-resistant sleeve 41.

In this embodiment, as shown in fig. 4, the crusher housing 7 includes a left end wall plate 18, a right end wall plate 19, a front side wall plate 20, and a rear side wall plate 21, and the left end wall plate 18, the front side wall plate 20, the right end wall plate 19, and the rear side wall plate 21 are connected in sequence to form a closed rectangular crusher housing 7; the two end parts of the first gear roller shaft 5 are respectively and rotatably connected with the left end wall plate 18 and the right end wall plate 19 through bearings, and the two end parts of the second gear roller shaft 16 are respectively and rotatably connected with the left end wall plate 18 and the right end wall plate 19 through bearings.

In this embodiment, a base 31 is disposed right below the bolt bracket 27, and the base 31 may be a steel plate welded to the base frame 22. An adjusting gasket 28 is padded between the bolt support 27 and the base 31, and the bolt support 27 and the base 31 are fixedly connected through bolts.

In this embodiment, there are two bolt brackets 27, which are respectively fixedly connected to two end plates of the crushing beam 11 through the crushing beam fixing bolts 26, as shown in fig. 14 to 16, the bolt brackets 27 include a bottom plate 33 and two bolt fixing plates 34, the two bolt fixing plates 34 are fixedly connected to the bottom plate 33, the two bolt fixing plates 34 are respectively fixedly connected to the end portions of the crushing beam 11 through the crushing beam fixing bolts 26, the bottom plate 33 of the bolt brackets 27 is located on the hydraulic jack 24, and an adjusting gasket 28 is padded between the bottom plate 33 and the base 31. The hydraulic jacks 24 are two in number and are respectively used for lifting two bolt supports 27.

In this embodiment, as shown in fig. 1, 11 and 13, the crushing device further includes a bolt protection cover 25, and the bolt protection cover 25 is fixedly connected to the bolt bracket 27 and the crushing beam fixing bolt 26 by bolts.

In this embodiment, as shown in fig. 5 and 13, the crusher further includes a base frame 22, an upper angle steel protection frame 30, and a lower angle steel protection frame 29, the base frame 22 is fixedly connected to the bottom of the crusher housing 7, the base frame 22 is used to support the crusher housing 7, the upper angle steel protection frame 30 is fixedly connected to a steel plate welded to the base frame 22, the lower angle steel protection frame 29 is fixedly connected to a bottom plate 33 of the bolt bracket 27, the upper angle steel protection frame 30 is located above the lower angle steel protection frame 29, the upper angle steel protection frame 30 and the lower angle steel protection frame 29 are arranged in a staggered manner, the crushing beam fixing bolt 26 and the bolt protection cover 25 are both located inside the upper angle steel protection frame 30 and the lower angle steel protection frame 29, the crushing beam 11 is located inside an end plate of the base frame 22, the bolt bracket 27 is located outside the end plate of the base frame 22, a long kidney-shaped through hole 32 is formed in the base frame 22 at a position corresponding to the crushing beam fixing bolt 26, it is possible to facilitate the up-and-down movement of the crushing beam fixing bolt 26.

In this embodiment, as shown in fig. 1, the roll-to-roll bending machine further includes a plurality of lining plates 6, the lining plates 6 are fixedly connected to the front side wall plate 20 and the rear side wall plate 21, the lining plates 6 on the front side wall plate 20 are located between adjacent rows of teeth 17 on the first tooth roll shaft 5, and the lining plates 6 on the rear side wall plate 21 are located between adjacent rows of teeth 17 on the second tooth roll shaft 16. The liners 6 are bolted to the front 20 and rear 21 side walls of the crusher housing 7. The convex plate on the lining plate 6 is arranged between the two rows of roller teeth 17 to form a sieve bar, so that materials which are possibly brought out by the centrifugal motion of the roller teeth 17 are prevented from falling out from a larger gap between the adjacent roller teeth 17.

When the hydraulic jack 24 of this embodiment is raised, the jack bolt bracket 27 moves upward, and the crushing beam fixing bolt 26 is fixed to the bolt bracket 27, so that the crushing beam fixing bolt 26 also moves upward. And the crushing beam fixing bolts 26 are inserted into both end plates of the crushing beam 11, so that the crushing beam 11 is also moved upward. When the particle size of a finished product needs to be adjusted, the hydraulic jack 24 is used, the variation amplitude of the particle size of the finished product cannot be too large, for example, the particle size range of the finished product is 20-80 mm, the lifting amplitude is 60mm at most, the lower angle steel protection frame 29 is fixed on the bolt support 27 and can lift along with the lifting of the bolt support 27, the upper angle steel protection frame 30 is fixed on one steel plate on the basic frame 22, the upper angle steel protection frame 30 is fixed, the upper angle steel protection frame 30 and the lower angle steel protection frame 29 are arranged in a staggered mode, and the rising opening behavior of the lower angle steel protection frame 29 is not influenced. The bolt support 27 is located on the base 31, the bolt support 27 is fixedly connected with the base 31 through bolts, and when the crushing beam 11 needs to be lifted, firstly, the bolts need to be loosened, and the bolt support 27 can be lifted up or lowered down by the hydraulic jack 24. When the bolt support 27 is lifted by the hydraulic jack 24, a gap is formed between the bolt support 27 and the base 31, and when the hydraulic jack 24 is lifted, the adjusting shim 28 is inserted to fill the gap. The adjusting shim 28 is provided with a U-shaped notch for avoiding a bolt (which is used for fixedly connecting the bolt support 27 with the base 31). After the bolt support 27 is lifted up, only the adjusting gasket 28 is used for filling, which is not enough, and if the bolt support 27 is not fixed firmly, the bolt support 27 will bump up and down, so after the adjusting gasket 28 is adjusted and filled up, the bolt support 27 and the base 31 are screwed tightly by using bolts.

Referring to fig. 1, in the present embodiment, 16 rows of teeth 17 are arranged along the length direction of the first tooth roller shaft 5 and the second tooth roller shaft 16 (8 rows of teeth 17 are respectively arranged on the first tooth roller shaft 5 and the second tooth roller shaft 16, and are arranged in a parallel and staggered manner), 1 discharge port is respectively arranged below each row, and the size of the discharge port is the gap between the upper tooth head 9 and the lower crushing tooth 10 of the teeth 17. The crushing beam 11 is lifted integrally along the length direction of the toothed roller shaft, so that 16 rows of lower crushing teeth 10 are lifted synchronously (a row of lower crushing teeth 10 are arranged below each row of roller teeth 17), which determines that 16 rows of discharge ports are the same in size, and the granularity of the crushed materials is the same basically. As shown in fig. 5, in this embodiment, a receiving lining board 23 is further disposed inside the base frame 22, which is used for collecting the materials and protecting the base frame 22.

The teeth 17 on the two tooth roller shafts (namely the first tooth roller shaft 5 and the second tooth roller shaft 16) of the embodiment are arranged in a staggered mode, the opening between the teeth 9 on the teeth 17 on the two tooth roller shafts close to the left end wall plate 18 and the right end wall plate 19 is large, large materials are suitably clamped and sheared, the opening between the teeth 9 on the teeth 17 on the two tooth roller shafts at the center part is small, and small materials are suitably clamped and sheared. After the materials are fed from the centers of the two toothed roll shafts, the large materials at the central parts are difficult to clamp because the upper toothed heads 9 are small in opening, and can be extruded towards two ends, and the two end parts of the toothed roll shafts are supported by bearings and wall plates, so that the bending resistance and the bending resistance are strong, the deformation is not easy, and the large materials are more suitable for crushing. The arrangement mode of the roller teeth 17 on the roller shafts of the toothed rollers is beneficial to uniform arrangement of materials in the axial direction of the toothed rollers, the middle parts of the two roller shafts of the toothed rollers are opposite to the feed inlet, the feeding amount is more, and the arrangement mode of the roller teeth 17 can force the large materials in the middle parts to be shunted to two ends. The two ends of the two toothed roll shafts are far away from the feeding port, the feeding amount is relatively less, and after a part of large materials from the middle part are received, the feeding on the whole roll teeth 17 is relatively uniform, the materials are convenient to crush and discharge, and the crushing capacity is improved. On the other hand, the arrangement of the roller teeth 17 is closer to the outline of materials with different sizes, and the number of the roller teeth 17 stressed at the same time can be increased, so that the crushing efficiency is improved.

The finished grain size is mainly achieved by adjusting the gap between the upper tooth head 9 of the tooth 17 and the lower crushing tooth 10 on the crushing beam 11. The crushing beam 11 is arranged in the center of the machine shell below the two toothed roll shafts, and two ends of the crushing beam 11 are supported by the crushing beam fixing bolts 26. The lifting of the crushing beam 11 can be realized by controlling the lifting of the hydraulic jack 24 to drive the bolt bracket 27 and the bolt crushing beam fixing bolt 26 to correspondingly act. Broken tooth 10 is installed in the draw-in groove on broken roof beam 11 down to firmly fixed through the bolt, can the oscilaltion together along with broken roof beam 11, broken roof beam 11 rises, and then the clearance between the tooth head 9 can diminish on broken roof beam 11 lower broken tooth 10 and the roller tooth 17 of two tooth roller shafts, otherwise, broken roof beam 11 descends, and the clearance can grow, thereby reaches the purpose of adjusting the clearance. After the gap is adjusted in place, the gap is kept unchanged by adopting an adjusting gasket 28 for compaction. The bolt protection cover 25 is fixed on the bolt support 27 through bolts to block the crushing beam fixing bolts 26 to prevent backward withdrawal, the upper angle steel protection frame 30 is fixed on the foundation frame 22 at the bottom of the crusher shell 7 to block the bolts on the bolt protection cover 25 to prevent backward withdrawal, and the safety protection structure is complete.

The preparation process of the roller teeth 17 in this embodiment is as follows:

1. blanking the toothed plate 35 according to a part drawing, processing the overall dimension, overlaying the wear-resistant layer 42, processing toothed plate through holes in the toothed plate 35, and positioning and welding the toothed plate 35 on a toothed roll shaft according to the arrangement mode of the toothed plate 35.

2. The tooth head 9, the impact bolt 36 and the adjusting washer 38 are finished according to the part drawing.

3. The split resilient cylindrical pin 37 is purchased in place with the standard.

The tooth head 9 mounting process of the embodiment:

firstly, the impact bolt 36 is installed in the toothed plate through hole on the toothed plate 35 and is installed in clearance fit with the toothed plate through hole, so that the impact bolt 36 can flexibly move back and forth in the toothed plate through hole. The method mainly plays two roles: firstly, when the tooth head 9 is disassembled, the impact can be carried out from the tail end, so that the tooth head 9 is convenient to disassemble; secondly, the gear roller plays a buffering role during crushing work, keeps the motion state forward along with the tooth head 9, and when the tooth head 9 is stressed, the recoil force is instantly transmitted to the impact bolt 36, so that the recoil force is effectively buffered and resolved in the process of changing the motion state, and the elastic cylindrical pin 37 with the opening plays a good protection role.

And secondly, the tooth head 9 is arranged in a tooth plate through hole on the tooth plate 35, so that the circular tooth groove 43 on the tooth head 9 is aligned with the lateral pin hole on the tooth plate 35.

In a third step, a split resilient cylindrical pin 37 is inserted into a lateral pin hole in the toothed plate 35.

Fourthly, the actually required thickness of the adjusting washer 38 is measured, and the adjusting washer 38 with the corresponding thickness is selected.

And fifthly, punching out the split elastic cylindrical pin 37, pulling out the gear head 9, sleeving the adjusting washer 38 with proper thickness on the tail shaft of the gear head 9, and then reinserting the gear head 9 and the split elastic cylindrical pin 37 to finish the installation.

And sixthly, checking the installation quality. The tooth head 9 must maintain a clearance from the plane of the front end of the toothed plate 35 and the adjusting washer 38, so as to prevent the split resilient cylindrical pin 37 from being broken by shearing force during operation.

The tooth head 9 dismounting process:

in a first step, the split elastic cylindrical pin 37 is punched out.

And in the second step, the tooth head 9 is pulled out, if the tooth head is pulled out, the small round hole on the back of the toothed plate 35, namely the impact bolt mounting hole 39, can be used for impacting the impact bolt 36 forwards by adopting a round bar, so that the tooth head 9 is pushed out.

This embodiment makes the most easy wearing and tearing tooth head 9 design into the independent monomer of detachable, can make a batch spare part tooth head 9 in planned in advance, when tooth head 9 wearing and tearing need be changed, as long as will be connected with pinion rack 35's opening elasticity cylindric lock 37 rush out, just can convenient and fast ground change tooth head 9, maintenance duration is short, greatly reduced easy-wear part cost of maintenance moreover.

This embodiment also has the following advantages:

1. the crushing ratio is large:

the material is from the center feeding between first tooth roller 5 and second tooth roller 16, when falling, receives on the epaxial roller tooth 17 of two tooth rollers that the tooth head 9 is to rolling impact, the first stage that the centre gripping was cuted and is produced is broken, when the material passes through between two tooth rollers, receives the last tooth root 8 of roller tooth 17 to rolling the second stage that the extrusion produced broken, when the material goes out the tooth roller, receives on the epaxial roller tooth 17 of tooth head 9 and broken roof beam 11 on the lower broken tooth 10 combined action of tooth and implements the third stage fine crushing to the fragment that two preceding stages produced. Therefore, large materials enter and small crushed materials flow out, and the crushing ratio is improved.

2. The granularity of the finished product is convenient to control:

the crushing beam 11 is raised or lowered by controlling the lifting of the hydraulic jack 24, so that the gap between the lower crushing teeth 10 on the crushing beam 11 and the upper tooth heads 9 of the roller teeth 17 on the two-tooth roller shafts is changed, the purpose of adjusting the gap is achieved, and the granularity of a finished product can be strictly controlled.

3. Can even cloth, crushing ability is strong, efficient:

the special arrangement mode of the crushing roller teeth 17 on the gear roller shaft can force the large materials in the middle to be shunted to two ends, so that the blanking on the whole gear roller shaft is more uniform, the crushing and the discharge of the materials are facilitated, and the crushing capacity is improved. The roller teeth 17 are provided with upper tooth heads and upper tooth roots, the crushing capacity is strong, and the large materials in the center of the machine shell can be shunted to two ends, so that the large materials can be crushed. On the other hand, the arrangement of the roller teeth 17 is closer to the outline of materials with different sizes, and the number of the roller teeth 17 stressed at the same time can be increased, so that the crushing efficiency is improved.

4. Has the double functions of sieving and crushing:

the two toothed roller shafts are fixedly installed, the relative motion of the two toothed roller shafts is like a rotary grid sieve, and materials meeting the requirement of granularity are firstly leaked from the gap of the roller teeth 17 to realize primary screening, so that the materials can be prevented from being crushed again through the roller teeth 17, the excessive crushing rate and the energy consumption of the materials are reduced, the crushing time of the roller teeth 17 is shortened, and the service life is prolonged. The movement of the roller teeth 17 also enables the materials to be forcibly discharged after being crushed, so that congestion is not easy to occur, and the roller teeth can also adapt to the crushing of viscous materials and materials with high moisture.

5. The protection device is safe and reliable:

the motor and the speed reducer of the crusher are connected by a torque-limiting hydraulic coupler, so that impact force generated during crushing can be absorbed to enable the machine to operate stably, and the whole machine can be protected safely. In addition, on the control of the equipment and the electric appliance, an electric control overload protection switch can be designed, so that the upper crushing tooth 10 and the lower crushing tooth 10 can be effectively prevented from being damaged by hard objects.

The technical scope of the present invention includes, but is not limited to, the above embodiments, the technical scope of the present invention is defined by the claims, and any replacement, modification, and improvement that can be easily conceived by those skilled in the art are included in the technical scope of the present invention.

Claims (10)

1. High broken ratio double tooth roller crusher, its characterized in that: the device comprises a crusher shell (7), a first gear roll shaft (5), a second gear roll shaft (16), a first coupler (12), a second coupler (4), a first speed reducer (13), a second speed reducer (3), a first hydraulic coupler (14), a second hydraulic coupler (2), a first motor (15), a second motor (1), a hydraulic jack (24), a bolt support (27), a crushing beam fixing bolt (26), a crushing beam (11) and lower crushing teeth (10);

a plurality of rows of roller teeth (17) are axially distributed on the first tooth roller shaft (5), and the starting angles of the plurality of rows of roller teeth (17) are sequentially decreased from the central part of the first tooth roller shaft (5) to two ends, so that the plurality of rows of roller teeth (17) are arranged in a V shape;

a plurality of rows of roller teeth (17) are distributed on the second gear roller shaft (16) along the axial direction, and the starting angles of the plurality of rows of roller teeth (17) are sequentially decreased from the central part of the second gear roller shaft (16) to two ends, so that the plurality of rows of roller teeth (17) are arranged in a V shape;

the first tooth roll shaft (5) and the second tooth roll shaft (16) are arranged in the crusher shell (7) in parallel, two end parts of the first tooth roll shaft (5) are rotatably connected with the crusher shell (7), two end parts of the second tooth roll shaft (16) are rotatably connected with the crusher shell (7), and the roll teeth (17) on the first tooth roll shaft (5) and the roll teeth (17) on the second tooth roll shaft (16) are arranged in a staggered mode;

the first motor (15) is connected with a first fluid coupling (14), the first fluid coupling (14) is connected with a first speed reducer (13), the first speed reducer (13) is connected with a first coupling (12), and the first coupling (12) is connected with the end part of the first gear roller shaft (5); the second motor (1) is connected with a second hydraulic coupler (2), the second hydraulic coupler (2) is connected with a second speed reducer (3), the second speed reducer (3) is connected with a second coupling (4), and the second coupling (4) is connected with the end part of a second gear roll shaft (16);

the bolt support (27) is positioned on the hydraulic jack (24), the bolt support (27) is connected with an end plate of the crushing beam (11) through a crushing beam fixing bolt (26), and the crushing beam (11) is connected with a plurality of lower crushing teeth (10); and a lower crushing tooth (10) is arranged below each row of the roller teeth (17).

2. A high crushing ratio double toothed roller crusher according to claim 1, characterized in that: the number of each row of roller teeth (17) on the first gear roller shaft (5) is three, and the three roller teeth (17) are uniformly distributed in the circumferential direction of the first gear roller shaft (5); the number of each row of roller teeth (17) on the second gear roller shaft (16) is three, and the three roller teeth (17) are uniformly distributed in the circumferential direction of the second gear roller shaft (16).

3. A high crushing ratio double toothed roller crusher according to claim 1, characterized in that: the roller teeth (17) comprise toothed plates (35), toothed heads (9), impact bolts (36), open elastic cylindrical pins (37) and adjusting washers (38), the toothed plates (35) are fixedly connected to the first toothed roller shaft (5) and the second toothed roller shaft (16), tooth roots (8) are arranged at the tails of the toothed plates (35), toothed plate through holes are formed in the heads of the toothed plates (35) and are formed by communicating impact bolt mounting holes (39) with toothed head mounting holes (40), lateral pin holes are further formed in the side walls of the toothed head mounting holes (40), a circular tooth groove (43) matched with the lateral pin holes is formed in each toothed head (9), the impact bolts (36) are inserted into the impact bolt mounting holes (39) of the toothed plate through holes and are in clearance fit with the toothed plate through holes, and the adjusting washers (38) are sleeved on the tail shafts of the toothed heads (9), the tail shaft of the tooth head (9) is inserted into a tooth head mounting hole (40) of the tooth plate through hole, a circular tooth groove (43) in the tooth head (9) is aligned with a lateral pin hole in the tooth plate (35), and the split elastic cylindrical pin (37) is inserted into the circular tooth groove (43) and the lateral pin hole.

4. A high crushing ratio double toothed roller crusher according to claim 1, characterized in that: the crusher shell (7) comprises a left end wall plate (18), a right end wall plate (19), a front side wall plate (20) and a rear side wall plate (21), wherein the left end wall plate (18), the front side wall plate (20), the right end wall plate (19) and the rear side wall plate (21) are sequentially connected to form a closed rectangular crusher shell (7) in an enclosing manner; the two ends of the first gear roller shaft (5) are respectively and rotatably connected with the left end wall plate (18) and the right end wall plate (19) through bearings, and the two ends of the second gear roller shaft (16) are respectively and rotatably connected with the left end wall plate (18) and the right end wall plate (19) through bearings.

5. A high crushing ratio double toothed roller crusher according to claim 1, characterized in that: the initial angles of the multiple rows of roller teeth (17) on the first tooth roller shaft (5) are sequentially decreased by 10 degrees from the central part of the first tooth roller shaft (5) to two ends; the starting angles of the multiple rows of roller teeth (17) on the second gear roller shaft (16) are sequentially decreased by 10 degrees from the central part of the second gear roller shaft (16) to two ends; the lower crushing teeth (10) are fixedly connected with the crushing beam (11) through bolts.

6. A high crushing ratio double toothed roller crusher according to claim 1, characterized in that: the bolt support is characterized in that a base (31) is arranged under the bolt support (27), an adjusting gasket (28) is arranged between the bolt support (27) and the base (31) in a cushioning mode, and the bolt support (27) is fixedly connected with the base (31) through bolts.

7. A high crushing ratio double toothed roller crusher according to claim 6, characterized in that: bolt support (27) have two, through broken roof beam fixing bolt (26) and the both ends board fixed connection of broken roof beam (11) respectively, bolt support (27) include bottom plate (33) and two bolt fastening board (34), and two bolt fastening board (34) fixed connection are on bottom plate (33), and two bolt fastening board (34) are respectively through the end plate fixed connection of broken roof beam fixing bolt (26) and broken roof beam (11), bottom plate (33) of bolt support (27) are located hydraulic jack (24), it has adjusting shim (28) to fill up in fact between bottom plate (33) and base (31).

8. A high crushing ratio double toothed roller crusher according to claim 7, characterized in that: the crushing beam crusher further comprises a bolt protection cover (25), and the bolt protection cover (25) is fixedly connected to the bolt support (27) and the crushing beam fixing bolt (26) through bolts.

9. A high crushing ratio double toothed roller crusher according to claim 8, characterized in that: still include foundation frame (22), upper angle steel fender bracket (30) and lower angle steel fender bracket (29), the bottom fixed connection of crusher housing (7) has foundation frame (22), upper angle steel fender bracket (30) fixed connection is on foundation frame (22), lower angle steel fender bracket (29) fixed connection is on bottom plate (33) of bolt support (27), upper angle steel fender bracket (30) are located lower angle steel fender bracket (29) top and upper angle steel fender bracket (30) and lower angle steel fender bracket (29) wrong limit and arrange, bolt visor (25) are located the inboard of upper angle steel fender bracket (30) and lower angle steel fender bracket (29).

10. A high crushing ratio double toothed roller crusher according to claim 4, characterized in that: still include a plurality of welts (6), equal a plurality of welts (6) of fixedly connected with on front side wallboard (20) and rear side wallboard (21), welt (6) on front side wallboard (20) are located between adjacent row's of roller tooth (17) on first tooth roller axle (5), welt (6) on rear side wallboard (21) are located between adjacent row's of roller tooth (17) on second tooth roller axle (16).

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