CN216936287U

CN216936287U - Discharging device and pulverizer

Info

Publication number: CN216936287U
Application number: CN202220235167.6U
Authority: CN
Inventors: 唐春燕
Original assignee: Guangdong Zhongtuowei Intelligent Equipment Co ltd
Current assignee: Guangdong Zhongtuowei Intelligent Equipment Co ltd
Priority date: 2022-01-27
Filing date: 2022-01-27
Publication date: 2022-07-12
Anticipated expiration: 2032-01-27

Abstract

The utility model discloses a discharging device and a pulverizer, wherein the discharging device comprises a base, a pulverizing roller shaft and a material pushing plate, wherein the base is provided with a discharging cavity penetrating through the upper end face, and the outer side wall of the base penetrates through the inner side wall of the discharging cavity to form a discharging hole; the crushing roller shaft is arranged on the base in a rotating mode along the vertical axis and is provided with a discharging shaft section, and the discharging shaft section is arranged in the discharging cavity; the material pushing plates are arranged on the peripheral side surface of the material discharging shaft section; the material after the crushing roller shaft is crushed falls into the discharging cavity, and the material pushing plate is driven by the discharging shaft section to push the crushed material to be discharged through the discharging hole. The crushing roller shaft can drive the material pushing plate to work when rotating crushed materials, and the problem that the structure of the existing discharging device is complex is solved.

Description

Discharging device and pulverizer

Technical Field

The utility model relates to the technical field of crushers, in particular to a discharging device and a crusher.

Background

Among the current material crushing machine, the material is smashing complete back via crushed aggregates device, often need set up discharging device alone and arrange the material, and discharging device's operation needs solitary power supply to carry out the transmission of power, and this not only can make the volume of device too big, and the structure is complicated, still can increase the manufacturing cost and the running cost of device.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a discharging device and a crusher, and aims to solve the problem that the existing discharging device is complex in structure.

In order to achieve the above object, the present invention provides a discharging device, including:

the base is provided with a discharge cavity penetrating through the upper end face, and the outer side wall of the base penetrates through the inner side wall of the discharge cavity to form a discharge hole;

the crushing roller shaft is rotatably arranged on the base along an up-down axial line and is provided with a discharging shaft section which is arranged in the discharging cavity; and the number of the first and second groups,

the material pushing plates are arranged on the peripheral side surface of the material discharging shaft section;

the material after the crushing roller shaft is crushed falls into the discharging cavity, and the material pushing plate is driven by the discharging shaft section to push the crushed material to be discharged through the discharging hole.

Optionally, the lower wall surface of the discharge cavity penetrates through the base downwards to form an installation hole, and a double-row angular contact bearing is arranged in the installation hole in a matched manner;

the crushing roller shaft is also provided with an installation shaft section which is positioned at the lower end of the discharging shaft section, and the installation shaft section is installed on the double-row angular contact bearing in an adaptive mode.

Optionally, a shaft shoulder is formed at the lower end of the discharging shaft section;

the discharging device further comprises a sealing ring, the sealing ring is arranged in the mounting hole in a matched mode, and the upper end face of the sealing ring is flush with the lower wall face of the discharging cavity;

the discharging shaft section is arranged in the annular cavity of the sealing ring in a matching mode, so that the shaft shoulder is tightly abutted to the upper end face of the sealing ring.

Optionally, the cross section of the discharge cavity is circular, and the extending direction of the discharge hole is in the tangential direction of the discharge cavity.

Optionally, the discharge hole is arranged inclined downwards in a direction tangential to the discharge chamber.

Optionally, in the horizontal direction, the discharge hole has a first hole wall and a second hole wall that are arranged oppositely, the first hole wall is connected with the inside wall of the discharge chamber in a tangent manner, and in the extending direction of the discharge hole, the second hole wall is arranged in an inclined manner in the direction away from the first hole wall.

Optionally, the material pushing plates are arranged on the circumferential side surface of the discharge shaft section at intervals.

Optionally, the material pushing plate is bent, the material pushing plate includes an installation plate section extending along the circumferential direction of the material discharging shaft section and a material pushing plate section extending along the radial direction of the material discharging shaft section, and a side end surface of the installation plate section is attached to a peripheral side surface of the material discharging shaft section.

Optionally, in the rotation direction of the crushing roller shaft, the material pushing plate section is arranged in front of the mounting plate section.

The utility model also provides a pulverizer, which comprises the discharge device, wherein the discharge device comprises:

the crushing roller shaft is rotationally arranged on the base along an up-down axial line, and is provided with a discharging shaft section which is arranged in the discharging cavity; and the number of the first and second groups,

the material crushed by the crushing roller shaft falls into the discharge cavity, and the material pushing plate is driven by the discharge shaft section to push the crushed material to be discharged through the discharge hole.

According to the technical scheme, materials completely crushed by the crushing roller shaft fall into the discharging cavity, the material pushing plate is arranged on the peripheral side surface of the discharging shaft section, so that the material pushing plate can move along with the rotation of the discharging shaft section, the materials falling into the discharging cavity are pushed, and finally the materials are discharged out of the device through the discharging holes, a power source is not required to be additionally arranged to drive the material pushing plate to move, the crushing roller shaft rotates crushed materials, the material pushing plate can push the falling materials in real time, the materials cannot be stacked, the discharging efficiency is high, the structure is compact, and the size of the device is small.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic view of an assembly structure of an embodiment of the pulverizer provided by the present invention;

FIG. 2 is a schematic longitudinal cross-sectional view of the shredder of FIG. 1;

FIG. 3 is an exploded view of the shredder of FIG. 1;

FIG. 4 is a schematic view of an assembly structure of the pulverizing roll shaft, the guide block, the sealing ring and the double-row angular contact bearing shown in FIG. 1;

FIG. 5 is a schematic view of the construction of the pulverizing barrel of FIG. 4;

FIG. 6 is a schematic view of the base of FIG. 4 (at another angle);

FIG. 7 is a schematic cross-sectional view of another embodiment of the shredder of FIG. 1.

The reference numbers illustrate:

the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

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

It should be noted that, if directional indications (such as up, down, left, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

In view of this, the utility model provides a discharging device and a crusher, and aims to solve the problem that the existing discharging device is complex in structure. Fig. 1 to 7 are schematic structural views of an embodiment of a pulverizer provided by the present invention.

Referring to fig. 2, 4 and 6, the discharging device 4 includes a base 1, a pulverizing roller shaft 2 and a material pushing plate 41, the base 1 is formed with a discharging cavity 11 penetrating through to an upper end surface, and an outer side wall of the base 1 penetrates through to an inner side wall of the discharging cavity 11 to form a discharging hole 12; the crushing roller shaft 2 is rotatably arranged on the base 1 along an up-down axial line, the crushing roller shaft 2 is provided with a discharging shaft section 22, and the discharging shaft section 22 is arranged in the discharging cavity 11; the material pushing plate 41 is arranged on the peripheral side surface of the discharging shaft section 22; the material crushed by the crushing roller shaft 2 falls into the discharging cavity 11, and the material pushing plate 41 is driven by the discharging shaft section 22 to push the crushed material to be discharged through the discharging hole 12.

According to the technical scheme, materials completely crushed by the crushing roller shaft 2 fall into the discharging cavity 11, the material pushing plate 41 is arranged on the peripheral side surface of the discharging shaft section 22, so that the material pushing plate 41 can move along with the rotation of the discharging shaft section 22, the materials falling into the discharging cavity 11 are pushed, and finally discharged out of the device through the discharging holes 12, a power source is not required to be additionally arranged to drive the material pushing plate 41 to move, when the crushing roller shaft 2 rotates crushed materials, the material pushing plate 41 can push the materials falling into the discharging cavity in real time, the materials cannot be stacked, the discharging efficiency is high, the structure is compact, and the size of the device is small.

It should be noted that, in this embodiment, the installation and connection position of the pulverizing roller shaft 2 is not limited, the pulverizing roller shaft 2 may be installed and connected to the base 1 through the upper end, may also be installed and connected to the base 1 through the lower end, and may also be installed and connected to the base 1 through the upper and lower ends, respectively, corresponding to different connection positions, the shape and position setting of the installation structure on the base 1 for installing the pulverizing roller shaft 2 may be changed adaptively, as long as the pulverizing roller shaft 2 can be installed on the base 1 along the upper and lower axes in a rotating manner.

It can be understood that, in order to achieve the discharging purpose, the material pushing plate 41 extends and is arranged in the discharging cavity 11, the lower end surface of the material pushing plate 41 should be close to the lower side wall surface of the discharging cavity 11, the material pushing plate 41 and the back end surface of the discharging shaft section 22 should be close to the peripheral side wall surface of the discharging cavity 11, so that the efficient material pushing effect of the material pushing plate 41 can be ensured.

Referring to fig. 2, 4 and 6, in the present embodiment, the lower wall of the discharging cavity 11 downwardly penetrates through the base 1 to form an installation hole 13, and a double-row angular contact bearing 42 is adapted to be disposed in the installation hole 13; the crushing roller shaft 2 also has an installation shaft section 23 located at the lower end of the discharge shaft section 22, and the installation shaft section 23 is adapted to be installed on the double-row angular contact bearing 42. So set up, through set up installation shaft section 23 below discharge shaft section 22, guaranteed that follow the top material loading of crushing roller shaft 2 is not influenced, simplified the structure of device, simultaneously in order to guarantee crushing roller shaft 2 can not take place the swing when rotating at a high speed, adopt double-row angular contact bearing to carry out 42 in this embodiment and connect, and then reduce crushing roller shaft 2's swing, mean crushing roller shaft 2 and the cooperation are smashed the clearance between the feed cylinder of material and can be controlled less, promptly can guarantee the less crushing granularity of material, simultaneously, double-row angular contact bearing 42 only need occupy less axial space, can effectively bear and come from crushing roller shaft 2's radial load and two-way axial load.

Further, in order to prevent the crushed material powder from falling into the double-row angular contact bearing 42, in the embodiment, a shaft shoulder 221 is formed at the lower end of the discharging shaft segment 22; the discharging device 4 further comprises a sealing ring 43, the sealing ring 43 is adapted to be arranged in the mounting hole 13, and the upper end surface of the sealing ring 43 is flush with the lower wall surface of the discharging cavity 11; the discharge shaft section 22 is adapted to the annular cavity of the sealing ring 43, so that the shaft shoulder 221 is tightly abutted to the upper end surface of the sealing ring 43. Through the setting of sealing ring 43, can prevent effectively that the material from falling into in the double row angular contact bearing 42, guarantee the gyration precision of crushing roller shaft 2, simultaneously the up end of sealing ring 43 with the lower wall face of discharge chamber 11 flushes the setting, makes the material be in under the centrifugal push of scraping wings 41 can be smoothly to the week side wall of discharge chamber 11 removes, has ensured the material via smooth the discharging of relief hole 12.

It will be appreciated that the sealing ring 43 is sealingly connected to the discharge shaft section 22, and further, to avoid frictional wear of the sealing ring 43, the sealing ring 43 is made of a wear-resistant material.

In another embodiment, the mounting shaft section 23 is provided at the upper end of the crushing roller shaft 2 and is connected to the base 1 through the mounting shaft section 23 at the upper end, so that the lower wall surface of the discharge chamber 11 is prevented from being provided with the mounting hole 13, and the sealing problem of the discharge shaft section 22 is not considered.

In order to improve the efficiency of the material pushing plate 41 pushing the material to be discharged, please refer to fig. 6, in this embodiment, the cross section of the discharging cavity 11 is circular, the extending direction of the discharging hole 12 is located on the tangential direction of the discharging cavity 11, it can be understood that a side wall of the discharging hole 12 is tangential and smoothly connected with the cavity wall of the discharging cavity 11, and the tangential direction of the discharging cavity 11 is adapted to the rotation circumferential direction of the crushing roller shaft. With such an arrangement, the powder material can be ensured to enter the discharge hole 12 along the direction with the maximum linear speed under the pushing action of the material pushing plate 41, that is, along the tangential direction of the discharge cavity 11, so that the discharge efficiency can be ensured to the maximum extent.

Further, in order to prevent the material from blocking the discharge hole 12, in this embodiment, in the tangential direction of the discharge cavity 11, the discharge hole 12 is arranged in a downward inclined manner, so that the crushed material can slide out of the discharge hole 12 downwards under the action of self gravity, the crushed material is prevented from blocking the discharge hole 12, and the passing efficiency of the material powder in the discharge hole 12 can be effectively improved.

Because the material powder loses the obstruction of the cavity wall of the discharge cavity 11 when the material pushing plate passes through the opening area of the discharge hole, so as to continuously enter the discharge hole 12 along the pushing direction of the material pushing plate 41, referring to fig. 7, in another embodiment, in the horizontal direction, the discharge hole 12 has a first hole wall 121 and a second hole wall 122 which are oppositely arranged, the first hole wall 121 is tangentially connected with the inner side wall of the discharge cavity 11, and in the extending direction of the discharge hole 12, the second hole wall 122 is obliquely arranged towards the direction far away from the first hole wall 121. It can be understood that the first hole wall 121 is tangentially connected with the inner side wall of the discharge cavity 11, the first hole wall 121 cannot be adhered to the material powder, and the arrangement is such that, when the material pushing plate rotates to the position of the second hole wall 122, due to the reason that the second hole wall 122 is inclined, the collision angle of the material powder with the second hole wall 122 is reduced, so that the adhesion probability of the material powder is reduced, and meanwhile, the discharge hole 12 is gradually enlarged, so that the probability that the discharge hole 12 is blocked is further reduced.

In this embodiment, three material pushing plates 41 are arranged on the circumferential side surface of the discharging shaft section 22 at intervals. By providing three ejector plates 41, no excessive load is applied to the crushing roller shaft 2 while ensuring the efficiency of pushing the material powder.

It will be appreciated that three of the ejector plates 41 are arranged at equal intervals in the rotational direction of the discharge shaft segment 22, thereby ensuring the revolution balance of the crushing roller shaft 2.

Referring to fig. 4, in the present embodiment, the material pushing plate 41 is bent, the material pushing plate 41 includes an installation plate segment 411 extending along the circumferential direction of the material discharging shaft segment 22 and a material pushing plate segment 412 extending along the radial direction of the material discharging shaft segment 22, and a side end surface of the installation plate segment 411 is attached to the circumferential side surface of the material discharging shaft segment 22. Through the arrangement of the mounting plate section 411, the connection contact area between the material pushing plate 41 and the material discharging shaft section 22 can be increased, so that the connection between the material pushing plate 41 and the material discharging shaft section 22 is firmer, the material pushing plate 41 is prevented from loosening and falling off in the high-speed rotation process, and the reliability of the device is ensured.

It is understood that the connection manner of the material pushing plate 41 and the discharge shaft segment 22 is various, and may be welding, riveting or screwing, and this embodiment is not limited in particular.

Further, based on the relative bending arrangement of the pushing plate section 412 and the mounting plate section 411, in this embodiment, the pushing plate section 412 is disposed in front of the mounting plate section 411 in the rotation direction of the crushing roller shaft 2. Compared with the situation that the pushing plate section 412 is arranged behind the mounting plate section 411, the pushing plate section 412 is arranged in front of the mounting plate section 411, so that the pushing plate section 412 can bear larger stress without further bending when pushing.

In this embodiment, the crushing roller shaft 2 further includes a driving shaft section located at the lower end of the mounting shaft section 23, the driving shaft section is used for connecting an external power source to obtain rotary power, the specific form of the external power source is not limited in this embodiment, and the driving shaft section may be a motor direct-connection driving or a manual driving.

The utility model further provides a pulverizer 100, which includes the above-mentioned discharging device 4, and the pulverizer 100 includes all technical features of the above-mentioned discharging device 4, and therefore, has technical effects brought by all the technical features, and is not described in detail herein.

Moreover, the pulverizer 100 further includes a pulverizing device 3, and the pulverizing device 3 and the above-mentioned discharging device 4 work together to pulverize the material to a target particle size, and then collect and discharge the material in time.

Referring to fig. 2 to 5, the crushing device 3 includes a base 1, a crushing cylinder 31 and a crushing roller 2; the crushing cylinder 31 is arranged on the base 1, a crushing cavity 311 penetrating through the upper end surface and the lower end surface of the crushing cylinder 31 is formed in the crushing cylinder 31, a plurality of crushing grooves 3111 are formed in the inner wall of the crushing cavity 311, the crushing grooves 3111 are arranged along the circumferential direction of the crushing cylinder 31, and each crushing groove 3111 extends along the vertical direction; the crushing roller shaft 2 is rotatably arranged on the base 1 along an up-down axis, the crushing roller shaft 2 is provided with a crushing shaft section 21, the crushing shaft section 21 is arranged in the crushing cavity 311, a plurality of material containing grooves 211 are arranged on the peripheral side surface of the crushing shaft section 21, each material containing groove 211 is upwards conducted to the upper end surface of the crushing shaft section 21 to form a crushing inlet 2111, and the peripheral side surface of the crushing shaft section 21 and the inner side wall of the crushing cavity 311 are arranged at intervals to form a discharging gap; the materials enter the material accommodating groove 211 from the crushing inlet 2111, collide and rub with the material accommodating grooves 3111 under the rotating centrifugal action of the crushing shaft section 21, and the materials with the qualified particle size after collision are led out downwards from the discharging gap.

In the technical scheme provided by the utility model, the material containing groove 211 is arranged on the peripheral side surface of the crushing shaft section 21, the material enters the material containing groove 211 from the crushing inlet 2111 and is always positioned in the material containing groove 211, under the rotating centrifugal action of the crushing shaft section 21, part of the material is exposed out of the material containing groove 211 and is in collision friction with the crushed material grooves 3111 on the inner wall of the crushing cavity 311 respectively, the material powder which is separated from the material body after the collision friction and reaches the standard particle size can be led out of the crushing device 3 downwards through the discharging gap, the part of the material body which does not reach the standard particle size is still in collision friction with the crushed material grooves 3111 under the driving of the material containing groove 211 until the final particle size reaches the standard and is led out through the discharging gap, the discharging gap realizes the control of the particle size of the led material powder, and the consistency of the grain size of the led out material powder is high, need not to screen the back regrinding to material powder, improved crushing efficiency, reduced manufacturing cost.

The shape of the material accommodating groove 211 is not limited in this embodiment, and the material accommodating groove 211 may be a straight groove or a spiral groove as long as it can accommodate the material and drive the material to collide and rub with the crushing cavity 311.

It can be understood that the discharge gap can be set according to the control requirement of the granularity of the material, the smaller the discharge gap is, the smaller the granularity after the material is crushed is, the effect of the crushed material groove 3111 is to increase the roughness of the side wall surface of the crushing cavity 311, the collision friction of the material of being convenient for, compared with the side wall surface of the crushing cavity 311 is provided with a convex block or a convex rib, the crushed material groove 3111 is arranged to ensure the accurate control of the size of the discharge gap, that is, the control of the granularity uniformity after the material is crushed is ensured, and the crushed material groove 3111 is also easier to process by extending in the up-down direction.

It can be understood that, in the embodiment of the present invention, specific materials of the pulverizing roller shaft 2 and the pulverizing cylinder 31 are not limited, and may be stainless steel alloy, silicon carbide or ceramic, etc., as long as the hardness is much greater than that of the material to be pulverized, so that the material will not be abraded during the process of pulverizing the material, and thus the material will not be polluted, and the service life of the device is longer.

The materials include but are not limited to grains, medicinal materials, dried fruits or processed raw materials and the like.

In order to improve the efficiency of the material entering the pulverizing inlet 2111, please refer to fig. 3 and 4, in this embodiment, the upper end surface of the pulverizing roller shaft 2 is provided with a guide block 32 arranged in a conical shape, and the section of the guide block 32 is arranged in a gradually expanding manner in the direction from top to bottom; a plurality of guide slots 321 are arranged on the circumferential side surface of the guide block 32 corresponding to the plurality of material accommodating slots 211, and each guide slot 321 is adapted to be communicated with the corresponding crushing inlet 2111 of the material accommodating slot 211. The material to be crushed can fall into the material accommodating groove 211 through the crushing inlet 2111 as soon as possible under the guiding action of the guide groove, so that the blanking efficiency of the material is improved.

The shape of the guide groove is not limited in this embodiment, and the guide groove may be a straight groove or a spiral groove as long as the function of guiding the material is achieved.

Further, the material guide block 32 is connected with the crushing roller shaft 2 through a bolt, so that the material guide block 32 and the crushing roller shaft 2 can be respectively processed and molded, and the processing technology is more reasonable.

Further, in this embodiment, the material guiding groove 321 is spirally wound on the peripheral side surface of the material guiding block 32, and the spiral direction of the material guiding groove 321 is opposite to the rotation direction of the pulverizing roller shaft 2. Compared with the guide grooves arranged along the generatrix direction of the guide block 32, the guide grooves arranged in a spiral manner can generate thrust to the direction of the crushing inlet 2111 in the rotating process while playing a guiding role, so that the materials can enter the crushing inlet 2111 as soon as possible.

In order to increase the primary crushing function of the device for the material with larger particle size, please refer to fig. 2, fig. 4 and fig. 5, in this embodiment, a plurality of primary crushing material grooves 3112 are disposed on the inner side wall of the crushing cavity 311 corresponding to the plurality of guide grooves 321, and each of the primary crushing material grooves 3112 penetrates upward to the upper end surface of the crushing roller shaft 2. The material is crushed into a particle size capable of entering the crushing inlet 2111 by the combined crushing action of the primary crushing groove 3112 and the guide chute 321.

It is understood that the size of the preliminary milling stock groove 3112 is larger than the size of the milling stock groove 3111.

Further, in order to prevent that the granularity is great, the harder material of treating to smash in surface be in preliminary broken groove with upwards roll-off skids between the baffle box 321, and influence crushing efficiency, in this embodiment, from last direction down, preliminary crushed aggregates groove 3112 is followed smash the direction of rotation spiral setting of roller 2, preliminary crushed aggregates groove 3112 with the spiral opposite direction of baffle box 321 when smashing roller 2 and rotating, preliminary crushed aggregates groove 3112 with the cell wall of baffle box 321 can provide respectively jointly and treat a decurrent effort of crushing material, prevent to treat the slippage of crushing material, has improved the preliminary crushing efficiency of treating crushing material.

Referring to fig. 5, in an embodiment, in a top-to-bottom direction, a groove depth of the preliminary milling groove 3112 is gradually reduced to match with the material with gradually reduced particle size, so that a final particle size of the material reaches a requirement of entering the milling inlet 2111;

in another embodiment, the width of the preliminary milling stock groove 3112 is gradually reduced from top to bottom to match the material with gradually reduced particle size, so that the final particle size of the material reaches the required particle size of the material entering the milling inlet 2111.

It should be noted that, above-mentioned two parallel technical features "from last direction down, preliminary crushed aggregates groove 3112's groove depth reduces gradually" and "from last direction down, preliminary crushed aggregates groove 3112's groove width reduces gradually" can the alternative setting, also can set up simultaneously, and is obvious, and the effect that sets up simultaneously is better.

Under the centrifugal action, the material can receive the ascending reaction force of holding silo 211 lateral wall, has hindered the material to a certain extent and has moved downwards in holding silo 211, please refer to fig. 4 on this basis, in this embodiment, hold silo 211 and be the heliciform around locating crushing shaft section 21 week side, just hold the helical direction of silo 211 with crushing roller 2's direction of rotation is opposite, thereby make crushing shaft section 21 when rotatory, hold the lateral wall face of silo 211 and can provide a decurrent friction component for the material, thereby promote the material along crushing roller 2's axial downstream, improved the passing efficiency of material.

Further, in this embodiment, from the top to the bottom, the groove depth of the material accommodating groove 211 gradually decreases, and with this arrangement, along with the material of which the particle size gradually decreases moving down in the material accommodating groove 211, the material can be forcibly extruded from the material accommodating groove 211 to collide with the material crushing groove 3111, so that the material is prevented from completely rebounding into the material accommodating groove 211 due to collision, and the crushing efficiency is improved.

Because the material reduces gradually from last motion in-process granularity down, treats that the volume of smashing the material also reduces gradually, on this basis, in another embodiment, from last direction down, hold the groove width of silo 211 and reduce gradually, can assemble remaining material better to extrude the material part hold silo 211 with crushed aggregates groove 3111 collision friction has improved crushing efficiency.

It should be noted that, the two parallel technical features "the groove depth of the material accommodating groove 211 gradually decreases in the direction from top to bottom" and "the groove width of the material accommodating groove 211 gradually decreases in the direction from top to bottom" may be alternatively or simultaneously set, which is obvious and has better effect in simultaneous setting.

It is understood that the groove depth and the groove width of the material accommodating groove 211 are gradually reduced until the material accommodating groove 211 disappears, and the particle size after the material is finally crushed is the size of the discharge gap by cooperating with the crushed material groove 3111.

In another embodiment, from top to bottom, the groove depth and the groove width of the particle groove 3111 gradually decrease until the particle groove 3111 disappears, so as to match the materials with gradually decreasing particle size to perform collision friction, and the particle size of the materials finally reaches the size of the discharge gap.

In order to improve the efficiency of the material to be crushed entering the crushing device 3, please refer to fig. 3, in this embodiment, the crushing device 3 further includes a lower hopper 33, and an end of the lower hopper 33 with a smaller opening is sleeved on an upper end of an outer side wall of the crushing cylinder 31. When unloading efficiency is improved, can effectively prevent that the material from splashing out.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all equivalent structural changes made by using the contents of the specification and drawings, or any other related technical fields, which are directly or indirectly applied to the present invention, are included in the scope of the present invention.

Claims

1. A discharge device, comprising:

2. The discharge device of claim 1, wherein a mounting hole is formed through the base with a lower wall of the discharge cavity facing downward, and a double-row angular contact bearing is fittingly arranged in the mounting hole;

3. The discharge device of claim 2, wherein a shoulder is formed at the lower end of the discharge shaft section;

4. A discharge device according to claim 1, characterised in that the discharge chamber is circular in cross-section and the discharge opening extends in the direction tangential to the discharge chamber.

5. A discharge device according to claim 4, characterized in that said discharge opening is arranged obliquely downwards in a direction tangential to said discharge chamber.

6. A discharge device according to claim 4, wherein the discharge opening has, in a horizontal direction, a first opening wall and a second opening wall arranged opposite to each other, the first opening wall being tangentially connected to an inner side wall of the discharge chamber, and the second opening wall being inclined away from the first opening wall in an extension direction of the discharge opening.

7. The discharge device of claim 1, wherein the stripper plates are arranged three at intervals on the circumferential side of the discharge shaft section.

8. The discharging device according to claim 1, wherein the material pushing plate is bent, the material pushing plate comprises a mounting plate section extending along a circumferential direction of the discharging shaft section and a material pushing plate section extending along a radial direction of the discharging shaft section, and a side end surface of the mounting plate section is attached to a circumferential side surface of the discharging shaft section.

9. The discharge device of claim 8, wherein said pusher plate segment is disposed forward of said mounting plate segment in the rotational direction of said crushing roller shaft.

10. A pulverizer characterized by comprising a discharge device according to any one of claims 1 to 9.