CN216094018U - Grinding device for grinding machine - Google Patents

Abstract

The utility model relates to the field of grinding equipment, in particular to a grinding device for a grinding machine, which comprises a grinding mechanism and a separation barrel, wherein the separation barrel comprises a shell, a screen assembly, an accommodating cavity, a discharge hole and a first grinding rotor, the shell is detachably connected with the grinding mechanism, the screen assembly is inserted into the inner cavity of the shell, the first grinding rotor is arranged on the shell, the first grinding rotor is rotatably arranged in the accommodating cavity, and the first grinding rotor is connected with the grinding mechanism in a driving way; the accommodating cavity is communicated with a discharge hole of the grinding mechanism. The first grinding rotor can drive the grinding medium in the accommodating cavity to grind the materials for the second time, so that the grinding effect and efficiency of the materials are improved; the grinding media separated from the screen assembly can be driven to rotate together, so that the separation efficiency of the screen assembly is improved; dismantle the casing from grinding the mechanism, can directly wash the screen assembly who exposes outside, improved grinder's cleaning efficiency, screen assembly washs and maintains the convenience, be difficult for the putty, low in production cost.

Description

Grinding device for grinding machine

Technical Field

The utility model relates to the field of grinding equipment, in particular to a grinding device for a grinding machine.

Background

The grinding equipment drives the grinding media and the materials to move at a high speed through the grinding rotor, the grinding media and the materials are extruded and collided with each other to grind the materials, and the materials and the grinding media are separated through the screen assembly. Then current grinding apparatus, grinding medium or material are attached to on screen assembly easily, lead to screen assembly's sieve mesh to be blockked up by material or grinding medium, often need the manual work to dismantle screen assembly from grinding apparatus and wash, however screen assembly's structure is complicated, the dismouting is inconvenient, and it is consuming time and consuming power to dismantle screen assembly, influences grinding apparatus's grinding efficiency and separation efficiency. Therefore, the drawbacks are obvious, and a solution is needed.

SUMMERY OF THE UTILITY MODEL

In order to solve the above technical problems, an object of the present invention is to provide a grinding apparatus for a grinder.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a grinding device for a grinding machine comprises a grinding mechanism and a separation barrel, wherein the separation barrel comprises a shell detachably connected with the grinding mechanism, a screen assembly inserted in an inner cavity of the shell, an accommodating cavity formed by enclosing the inner side wall of the screen assembly and the end wall of the shell, a discharge hole arranged on the shell and communicated with the accommodating cavity, and a first grinding rotor rotationally arranged in the accommodating cavity, and the first grinding rotor is connected with the grinding mechanism in a driving manner; the accommodating cavity is communicated with a discharge hole of the grinding mechanism; the screen assembly is connected with a grinding mechanism.

Furthermore, the grinding mechanism comprises a grinding barrel, a second grinding rotor rotationally arranged on the grinding barrel, and a grinding cavity formed by enclosing the outer side wall of the second grinding rotor and the inner side wall of the grinding barrel; the grinding cavity is communicated with the accommodating cavity; the first grinding rotor is in driving connection with the second grinding rotor, the screen assembly is connected with the grinding barrel and the shell, and the shell is detachably connected with the grinding barrel; the grinding rotor II comprises a rotating shaft, a grinding rotor body II sleeved outside the rotating shaft and a plurality of blades II arranged on the circumference of the grinding rotor body II.

Furthermore, the shell comprises a cover plate connected with the screen assembly and a shell sleeved outside the screen assembly and connected with the grinding mechanism, and the discharge hole is formed in the side wall of the shell; the shell is detachably connected with the grinding mechanism; the holding cavity is formed by surrounding the inner side wall of the screen assembly and the inner side wall of the cover plate.

Further, the screen assembly comprises a screen, a first connecting piece connected with the screen and the cover plate, and a second connecting piece connected with the screen and the grinding mechanism.

Further, a protruding portion is arranged on the first connecting piece in the circumferential direction and detachably connected with the shell.

Further, the screen assembly further comprises a plurality of connecting rods arranged on the periphery of the side face of the screen, and the connecting rods are connected to the first connecting piece and the second connecting piece.

Furthermore, the grinding rotor I comprises a grinding rotor body I which is in driving connection with the rotating shaft and a plurality of blades I which are arranged on the periphery of the grinding rotor body I, and the blades I are provided with concave curved surfaces.

Further, the projection view of the first blade is in an inverted trapezoid shape.

Further, the projection view of the first blade is trapezoidal.

Further, the first blade and the second blade are identical in structure.

The utility model has the beneficial effects that: the grinding rotor can drive the grinding medium in the accommodating cavity to grind the materials for the second time, so that the grinding effect and efficiency of the materials are improved; the grinding media separated by the screen assembly can be driven to rotate together, so that the separated grinding media are prevented from being attached to the screen assembly, and the separation efficiency of the screen assembly is improved; the shell and the grinding mechanism can be connected in a screw joint or clamping way and the like, when the screen assembly is required to be cleaned, the shell is directly detached from the grinding mechanism, the screen assembly or the grinding rotor II is not required to be detached from the grinding mechanism, the exposed screen assembly can be directly cleaned, the shell is convenient to disassemble and assemble, the disassembling and cleaning time of the screen assembly is saved, the cleaning efficiency of the grinding device is improved, the grinding device is simple in structure, the screen assembly is convenient to clean and maintain, material blockage is not easy to occur, and the production cost is low; the apron can be used to prevent that the material from flowing out from the tip of shell, and is connected apron and screen assembly, prevents that screen assembly from appearing the displacement or deflecting in grinding process, has improved the stability of screen assembly in the use.

Drawings

Fig. 1 is a partial sectional view of the first embodiment of the present invention.

Fig. 2 is a partial sectional view of the present invention.

Fig. 3 is a schematic perspective view of a first grinding rotor according to a first embodiment of the present invention.

Fig. 4 is a schematic perspective view of a first grinding rotor according to a second embodiment of the present invention.

Description of reference numerals:

1. a separation barrel; 2. a grinding mechanism; 3. grinding the first rotor; 4. a cover plate; 5. a screen assembly; 6. a housing; 7. an accommodating cavity; 8. a discharge hole; 9. a first sealing element; 10. a second sealing element; 11. a grinding barrel; 12. a rotating shaft; 13. grinding the rotor II; 14. a grinding chamber; 15. screening a screen; 16. a first connecting piece; 17. a second connecting piece; 18. A boss portion; 19. a connecting rod; 20. a first blade; 21. a concave curved surface; 22. an inner barrel; 23. an outer tub; 24. A liquid inlet; 25. a liquid outlet; 26. and a discharge end.

Detailed Description

In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention.

The first embodiment.

As shown in fig. 1 to 3, the grinding device for a grinding machine provided by the present invention comprises a grinding mechanism 2 and a separation barrel 1, wherein the separation barrel 1 comprises a housing detachably connected to the grinding mechanism 2, a screen assembly 5 inserted into an inner cavity of the housing, an accommodating cavity 7 defined by an inner side wall of the screen assembly 5 and an end wall of the housing, a discharge hole 8 disposed on the housing and communicated with the accommodating cavity 7, and a grinding rotor i 3 rotatably disposed in the accommodating cavity 7, and the grinding rotor i 3 is drivingly connected to the grinding mechanism 2; the accommodating cavity 7 is communicated with a discharge hole of the grinding mechanism 2; the screen assembly 5 is connected to the grinding mechanism 2. The shell comprises a cover plate 4 connected with the screen assembly 5 and a shell 6 sleeved outside the screen assembly 5 and connected with the grinding mechanism 2, and the discharge hole 8 is formed in the side wall of the shell 6; the shell 6 is detachably connected with the grinding mechanism 2; the accommodating cavity 7 is formed by surrounding the inner side wall of the screen assembly 5 and the inner side wall of the cover plate 4.

Specifically, the discharge hole of discharge opening 8 communicates with the pump body, the pump body is used for taking the material in the holding chamber 7 out from discharge opening 8. In the actual use process, the material to be ground and the grinding medium are injected into the feed inlet of the grinding mechanism 2, the grinding mechanism 2 drives the material and the grinding medium to collide and rub with each other so as to primarily grind the material, and the primarily ground material and the grinding medium are conveyed into the accommodating cavity 7 from the discharge port of the grinding mechanism 2 under the combined action of the grinding mechanism 2 and the pump body; at this moment, grind mechanism 2 and drive grinding rotor 3 at the internal rotation of holding chamber 7, grinding rotor 3 drives the material and rotates so that grinding medium and material continuously rub and produce centrifugal force, in order to carry out the secondary grinding to the material, the continuous material with in holding chamber 7 of the pump body is taken out from discharge opening 8 simultaneously, material and grinding medium are to the direction motion that is close to discharge opening 8 under the combined action of centrifugal force and the pump body, screen assembly 5 screens the material and the grinding medium that are about to get into the feed inlet of discharge opening 8, the material that the particle diameter reached the grinding demand is carried to in the feed inlet of discharge opening 8 after screen assembly 5 screens, grinding medium is kept apart in holding chamber 7 by screen assembly 5, so that material and grinding medium separate, thereby realized the grinding and the screening separation of this grinder material. Because the screen assembly 5 is sleeved outside the grinding rotor I3, when the grinding rotor I3 rotates in the accommodating cavity 7, the grinding rotor I3 can drive the grinding medium in the accommodating cavity 7 to grind the material for the second time, so that the grinding effect and efficiency of the material are improved, the grinding medium separated by the screen assembly 5 can be driven to rotate together, the separated grinding medium is prevented from being attached to the screen assembly 5, and the separation efficiency of the screen assembly 5 is improved; the shell 6 and the grinding mechanism 2 can be connected in a screw joint or clamping way and the like, when the screen assembly 5 needs to be cleaned, the shell 6 is directly detached from the grinding mechanism 2, the screen assembly 5 or the grinding rotor II 13 does not need to be detached from the grinding mechanism 2, the exposed screen assembly 5 can be directly cleaned, the shell 6 is convenient to detach and assemble, the detaching and cleaning time of the screen assembly 5 is saved, the cleaning efficiency of the grinding device is improved, the grinding device is simple in structure, the screen assembly 5 is convenient to clean and maintain and is not easy to block materials, and the production cost is low; apron 4 can be used to prevent that the material from flowing out from the tip of shell 6, and is connected screen assembly 5 with apron 4 and grinding mechanism 2 respectively, has improved screen assembly 5 and has installed the stability in separation bucket 1, can prevent that screen assembly 5 from appearing the displacement or deflecting in the grinding process.

Further, one end of the housing 6 is detachably connected with the grinding mechanism 2, and the other end of the housing 6 is tightly connected with the screen assembly 5 or/and the cover plate 4; the grinding device also comprises a first sealing element 9 for sealing a gap between the housing 6 and the grinding mechanism 2 and a second sealing element 10 for sealing a gap between the housing 6 and the screen assembly 5 or/and the cover plate 4.

Specifically, the first sealing element 9 and the second sealing element 10 can both adopt rubber sealing rings. In the actual installation process, after the screen assembly 5 is respectively in threaded connection or clamping connection with the grinding mechanism 2 and the cover plate 4, the second sealing element 10 is arranged in the inner cavity of the shell 6, the first sealing element 9 is arranged at one end, close to the grinding mechanism 2, of the shell 6, the shell 6 is finally sleeved outside the screen assembly 5, one end of the shell 6 is firmly connected with the grinding mechanism 2 in a threaded connection or clamping connection mode, and the other end of the shell 6 is tightly connected with the screen assembly 5 or/and the cover plate 4. The first sealing element 9 can prevent the materials or grinding media in the accommodating cavity 7 from leaking out of the separating barrel 1 from the joint of the shell 6 and the grinding mechanism 2, and the second sealing element 10 can prevent the materials or grinding media in the accommodating cavity 7 from leaking out of the separating barrel 1 from the joint of the screen assembly 5 and the shell 6 or/and the cover plate 4, so that the sealing performance of the separating barrel 1 is improved, and the waste of the materials and the grinding media is avoided.

Further, the grinding mechanism 2 comprises a grinding barrel 11, a second grinding rotor 13 rotatably arranged in the inner cavity of the grinding barrel 11, and a grinding cavity 14 enclosed by the outer side wall of the second grinding rotor 13 and the inner side wall of the grinding barrel 11; the discharge end 26 of the grinding cavity 14 is communicated with the feed inlet of the accommodating cavity 7; the first grinding rotor 3 is in driving connection with the second grinding rotor 13, the screen assembly 5 is connected to the grinding barrel 11 and the cover plate 4, and the shell 6 is detachably connected with the grinding barrel 11.

Specifically, the second grinding rotor 13 includes a rotating shaft 12, a second grinding rotor body sleeved outside the rotating shaft 12, and a plurality of second blades arranged in the circumferential direction of the second grinding rotor body; the first grinding rotor 3 and the second grinding rotor body can be connected with the rotating shaft 12 in a threaded connection or clamping connection mode and the like; the first seal 9 is used for sealing the gap between the housing 6 and the grinding barrel 11. In the actual use process, the rotating shaft 12 is in driving connection with the motor, the motor drives the rotating shaft 12 to drive the grinding rotor body II and the grinding rotor I3 to synchronously rotate in the grinding barrel 11 and the separation barrel 1 respectively, so that the grinding media can conveniently grind materials in the grinding cavity 14 and the accommodating cavity 7 respectively, and the grinding efficiency of the materials and the screening efficiency of the screen assembly 5 are improved; the grinding mechanism 2 has the advantages of simple structure, fine grinding, convenient operation, good applicability and the like.

Further, the screen assembly 5 includes a screen 15, a first connecting member 16 connected to the screen 15 and the cover plate 4, and a second connecting member 17 connected to the screen 15 and the grinding mechanism 2.

Specifically, the second sealing element 10 is used for sealing a gap between the housing 6 and the second connecting element 17 or/and the cover plate 4; mode such as 16 can adopt spiro union or joint are connected with apron 4 for connecting piece two 17 can adopt modes such as spiro union or joint to be connected with milling barrel 11 to make screen cloth 15 and apron 4 or/and milling barrel 11's easy dismounting, simplified screen assembly 5 respectively with milling barrel 11 and apron 4's connection structure, easily processing production. When the grinding rotor I3 drives the material and the grinding medium to rotate in the accommodating cavity 7, the grinding medium is isolated in the accommodating cavity 7 by the screen 15, so that the material and the grinding medium are separated, the connection and the installation of the screen 15 are convenient, and the separation efficiency is high.

Further, a protruding portion 18 is arranged on the first connecting member 16 in the circumferential direction, and the protruding portion 18 is detachably connected with the housing 6.

In particular, the boss 18 is screwed to the inner side wall of the housing 6, and the first seal 9 is used for sealing the gap between the boss 18 or/and the cover plate 4 and the housing 6. In the actual installation process, after the screen assembly 5, the cover plate 4 and the grinding barrel 11 are installed, the shell 6 is sleeved outside the screen assembly 5, when the shell 6 is abutted against the protruding portion 18, the shell 6 is rotated and moved towards the direction close to the grinding barrel 11, the shell 6 is screwed with the protruding portion 18 while rotating, when the shell 6 is abutted against the outer side wall of the grinding barrel 11, the rotation is stopped, and then the shell 6 and the grinding barrel 11 are locked together through the locking piece. The additionally arranged protruding part is in threaded connection with the shell 6, so that the situation that the shell 6 rotates or deviates from the cover plate 4 or/and the grinding barrel 11 in the rotating process of the first grinding rotor 3 is avoided, the stability of the shell 6 in the using process is improved, and the sealing performance of the separation barrel 1 is improved.

Further, the screen assembly 5 further comprises a plurality of connecting rods 19 uniformly distributed on the periphery of the side surface of the screen 15, and the connecting rods 19 are connected to the first connecting piece 16 and the second connecting piece 17.

In the in-service use process, use many connecting rods 19 and screen cloth 15's lateral wall closely to laminate, connecting rod 19 is used for supporting screen cloth 15 to strengthen screen cloth 15's intensity, be difficult to produce deformation when guaranteeing that screen cloth 15 receives the extrusion of material or grinding medium, thereby improved screen cloth 15's stability, avoid screen cloth 15 to warp and influence the effect of screening, improved the quality of screen cloth 15 screening separation.

Further, the grinding rotor one 3 includes a grinding rotor body one in driving connection with the rotating shaft 12, and a plurality of blades one 20 arranged in a circumferential direction of the grinding rotor body, and the blades one 20 is provided with a concave curved surface 21.

Specifically, the rotating shaft 12 protrudes into the accommodating cavity 7, and the grinding rotor body two and the grinding rotor body one are sequentially sleeved outside the rotating shaft 12; the number of the grinding rotor bodies II and the number of the grinding rotor bodies I are both multiple; the grinding rotor bodies I and the grinding rotor bodies II are respectively arranged along the central shaft of the rotating shaft 12 at equal intervals; the first blades 20 are arranged in an annular array along the central axis of the first grinding rotor body, the second blades are arranged in an annular array along the central axis of the second grinding rotor body, and the first grinding rotor 3 is of an integrated structure; the first blade 20 of the first grinding rotor 3 and the second blade 13 of the second grinding rotor have the same structure; the concave curved surface 21 is formed by inwards concave arrangement of the outer side wall of the top end surface of the first blade 20. In the actual use process, the grinding rotors I3 with different sizes can be selected according to the inner diameter of the screen 15, so that the grinding rotors I3 drive the grinding media separated in the accommodating cavity 7 by the screen 15 to rotate, and the separation efficiency and quality of the screen 15 are improved; the concave curved surface 21 is additionally arranged, so that the contact area between the first blade 20 and the grinding medium and the material is increased, the first blades 20 can fully drive the grinding medium and the material in the grinding cavity 14 or the accommodating cavity 7 to turn over, and the material can be fully ground.

Further, the projection view of the first blade 20 is trapezoidal.

In the actual use process, the bottom end of the first blade 20 is the end close to the first grinding rotor body, the width of the first blade 20 is gradually increased along the direction from the top end of the first blade 20 to the bottom end of the first blade 20, the first blade 20 is in a trapezoid shape, the contact area of the first blade 20 with the material and the grinding medium is increased, and in the process that the rotating shaft 12 drives the first grinding rotor body and the first blade 20 to rotate, the contact of the first blade 20 with the material and the grinding medium is more sufficient, so that the grinding efficiency of the material is improved; the structure of the first blade 20 is the same as that of the second blade.

Specifically, the grinding barrel 11 includes an inner barrel 22, an outer barrel 23 sleeved outside the inner barrel 22, and a cooling device disposed between the inner barrel 22 and the outer barrel 23.

Specifically, the two sets of cooling devices are arranged symmetrically along the central axis of the grinding barrel 11; the cooling device comprises a water guiding groove or a water guiding pipe spirally surrounding between the inner barrel 22 and the outer barrel 23, a liquid outlet 25 arranged on the outer barrel 23 and communicated with a water outlet of the water guiding groove or the water guiding pipe, and a liquid inlet 24 arranged on the outer barrel 23 and communicated with a water inlet of the water guiding groove or the water guiding pipe. In the actual use process, the materials and the grinding media in the grinding cavity 14 collide with each other and generate heat through friction, a cooling device is additionally arranged, cooling liquid is injected into the water guide groove or the water guide pipe from the liquid inlet 24, and the cooling liquid circularly flows in the water guide groove or the water guide pipe to cool or cool the grinding cavity 14, so that the materials and the grinding media in the grinding cavity 14 and the grinding cavity 14 are always kept at lower temperature, and the service life and the stability of the grinding device are improved. The operation of the two sets of cooling devices is not interfered with each other, and the two sets of cooling devices are additionally arranged, so that the cooling efficiency of the grinding barrel 11 is further improved.

Example two.

As shown in fig. 4, the present embodiment is different from the first embodiment in that: the projection view of the first blade 20 is in an inverted trapezoid shape, the bottom end of the first blade 20 is one end close to the first grinding rotor body, and the width of the first blade 20 gradually decreases along the direction from the top end of the first blade 20 to the bottom end of the first blade 20; because the quality of grinding medium is greater than the quality of material, when the pump body passes through discharge opening 8 and extracts material and grinding medium in the holding chamber 7, the pump body is stronger to the effort of the lighter material of quality, grinding medium receives the influence of the pump body littleer, consequently when blade 20 drives grinding medium and material and rotates along the center pin of pivot 12, at the cooperation of first 20 of the trapezoidal blade and concave curved surface 21, grinding medium slides to first 20 rear sides of blade along concave curved surface 21 easily, so that grinding medium is repeated constantly to the material in holding chamber 7 or grinding chamber 14 and grind, grinding medium's utilization efficiency and grinding efficiency have been improved.

The remaining structure of this embodiment is the same as that of the first embodiment, and the same structure may be analyzed according to the first embodiment, which is not described herein again.

All the technical features in the embodiment can be freely combined according to actual needs.

The above embodiments are preferred implementations of the present invention, and the present invention can be implemented in other ways without departing from the spirit of the present invention.

Claims (10)

1. A grinding apparatus for a grinding machine, characterized by: the separation barrel (1) comprises a grinding mechanism (2) and a separation barrel (1), wherein the separation barrel (1) comprises a shell detachably connected with the grinding mechanism (2), a screen assembly (5) inserted into an inner cavity of the shell, an accommodating cavity (7) formed by enclosing the inner side wall of the screen assembly (5) and the end wall of the shell, a discharge hole (8) arranged on the shell and communicated with the accommodating cavity (7), and a grinding rotor I (3) rotatably arranged in the accommodating cavity (7), and the grinding rotor I (3) is in driving connection with the grinding mechanism (2); the accommodating cavity (7) is communicated with a discharge hole of the grinding mechanism (2); the screen assembly (5) is connected with the grinding mechanism (2).

2. A grinding apparatus for a grinding mill according to claim 1, characterized in that: the grinding mechanism (2) comprises a grinding barrel (11), a second grinding rotor (13) rotatably arranged on the grinding barrel (11), and a grinding cavity (14) formed by enclosing the outer side wall of the second grinding rotor (13) and the inner side wall of the grinding barrel (11); the grinding cavity (14) is communicated with the accommodating cavity (7); the first grinding rotor (3) is in driving connection with the second grinding rotor (13), the screen assembly (5) is connected with the grinding barrel (11) and the shell, and the shell is detachably connected with the grinding barrel (11); the second grinding rotor (13) comprises a rotating shaft (12), a second grinding rotor body sleeved outside the rotating shaft (12) and a plurality of second blades arranged on the second grinding rotor body in the circumferential direction.

3. A grinding apparatus for a grinding mill according to claim 2, characterized in that: the shell comprises a cover plate (4) connected with the screen assembly (5) and a shell (6) sleeved outside the screen assembly (5) and connected with the grinding mechanism (2), and the discharge hole (8) is formed in the side wall of the shell (6); the shell (6) is detachably connected with the grinding mechanism (2); the accommodating cavity (7) is formed by surrounding the inner side wall of the screen assembly (5) and the inner side wall of the cover plate (4).

4. A grinding apparatus for a grinding mill according to claim 3, characterized in that: the screen assembly (5) comprises a screen (15), a first connecting piece (16) connected with the screen (15) and the cover plate (4) and a second connecting piece (17) connected with the screen (15) and the grinding mechanism (2).

5. A grinding apparatus for a grinding mill according to claim 4, characterized in that: the first connecting piece (16) is circumferentially provided with a protruding part (18), and the protruding part (18) is detachably connected with the shell (6).

6. A grinding apparatus for a grinding mill according to claim 4, characterized in that: the screen assembly (5) further comprises a plurality of connecting rods (19) arranged on the periphery of the side face of the screen (15), and the connecting rods (19) are connected to the first connecting piece (16) and the second connecting piece (17).

7. A grinding apparatus for a grinding mill according to claim 2, characterized in that: the grinding rotor I (3) comprises a grinding rotor body I in driving connection with the rotating shaft (12) and a plurality of blades I (20) arranged in the circumferential direction of the grinding rotor body, and the blades I (20) are provided with concave curved surfaces (21).

8. A grinding apparatus for a grinding mill according to claim 7, characterized in that: the projection view of the first blade (20) is in an inverted trapezoid shape.

9. A grinding apparatus for a grinding mill according to claim 7, characterized in that: the projection view of the first blade (20) is trapezoidal.

10. A grinding apparatus for a grinding mill according to claim 7, 8 or 9, characterized in that: the first blade (20) and the second blade are identical in structure.

Images