CN216094027U

CN216094027U - Separating device for grinding machine

Info

Publication number: CN216094027U
Application number: CN202122227770.8U
Authority: CN
Inventors: 余伟; 宋克甫; 邓世军
Original assignee: DONGGUAN LONGLY MACHINERY CO LTD
Current assignee: DONGGUAN LONGLY MACHINERY CO LTD
Priority date: 2021-09-14
Filing date: 2021-09-14
Publication date: 2022-03-22
Anticipated expiration: 2031-09-14

Abstract

The utility model relates to the technical field of grinding machines, in particular to a separating device for a grinding machine, which comprises a main shaft and a separating mechanism, wherein the main shaft is provided with a groove; the separation mechanism comprises a plurality of radial channels, a first mounting seat and a second mounting seat which are respectively connected to the outside of the main shaft, a plurality of connecting pieces connected to the first mounting seat and the second mounting seat, an accommodating cavity and an axial channel arranged in the main shaft, wherein the plurality of radial channels are arranged around the main shaft, and the radial channels are arranged between two adjacent connecting pieces; the axial channel is communicated with the radial channel through the accommodating cavity. The separating device is convenient to repair and maintain, simple in structure and convenient to produce. The radial channel can screen and separate grinding media and materials, so that the screening efficiency and the practicability of the separation device are improved; the holding cavity can be stored the material, and radial channel can be stored the material in carrying the holding cavity from grinding chamber, prevents that the material from piling up in radial channel.

Description

Separating device for grinding machine

Technical Field

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

Background

At present, the application range of wet grinding is wider and wider, the requirement on the grinding fineness of materials is higher and higher, and the grinding media used by wet grinding equipment are thinner and thinner, so that higher requirements are put forward on a separation device of the wet grinding equipment. However, the prior separating device has low separating and screening accuracy, complex structure and inconvenient production and installation; and in the separation and screening process, the separation device is easy to be blocked, so that the separation and screening efficiency is reduced. 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 separating apparatus for a grinding mill.

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

a separation device for a grinding mill comprises a main shaft and a separation mechanism; the separation mechanism comprises a plurality of radial channels, a first mounting seat and a second mounting seat which are respectively connected to the outside of the main shaft, a plurality of connecting pieces connected to the first mounting seat and the second mounting seat, an accommodating cavity formed by enclosing the outer side wall of the main shaft, the inner side wall of the first mounting seat, the inner side wall of the second mounting seat and the inner side walls of the connecting pieces, and an axial channel arranged in the main shaft, wherein the plurality of radial channels are arranged around the main shaft, and the radial channels are arranged between two adjacent connecting pieces; the axial channel is communicated with the radial channel through the accommodating cavity.

Furthermore, the separating device further comprises a limiting mechanism arranged on the main shaft, and the limiting mechanism is used for limiting the first mounting seat and/or the second mounting seat to move relative to the main shaft in the axial direction of the main shaft.

Further, a plurality of the connecting pieces are distributed along the central axis of the main shaft in an annular array.

Further, the main shaft comprises a main shaft body and a plurality of through holes arranged in the circumferential direction of the main shaft body, and the axial channel is arranged in the main shaft body; the axial channel is communicated with the accommodating cavity through the through hole.

Further, the first mounting seat and the second mounting seat are detachably connected with the connecting piece respectively.

Further, the connecting piece includes connecting piece body and the connecting hole three that runs through the connecting piece body setting, be provided with on the mount pad one with the connecting hole one of three intercommunications of connecting hole, be provided with on the mount pad two with the connecting hole two of three intercommunications of connecting hole, mount pad one, connecting piece body and mount pad two are connected via the locking part, the locking part is connected with connecting hole one, connecting hole three and connecting hole two detachably.

Furthermore, the connecting piece comprises a first straight-side surface, an arc-shaped surface and a second straight-side surface which are sequentially connected end to end, and the radial channel is formed by enclosing an inner side wall of the first mounting seat, an inner side wall of the second mounting seat, the second straight-side surface of one connecting piece and the first straight-side surface of the other adjacent connecting piece.

Further, the projection view of the radial channel is linear.

Further, the direction of rotation that a plurality of radial passages formed is A, the direction of rotation of main shaft is B, the direction of rotation A and the opposite direction of rotation B.

Furthermore, sharp corners are formed by enclosing the first straight-edge surface and the second straight-edge surface, and the plurality of sharp corners are distributed outside the main shaft in an annular array and enclose an accommodating cavity with a regular polygon structure; the arc-shaped surfaces of the connecting pieces are encircled into a circle.

The utility model has the beneficial effects that: the separating device is convenient to repair and maintain, simple in structure and convenient to produce. The radial channel can screen and separate grinding media and materials, and the grinding media can move in the direction far away from the radial channel under the action of centrifugal force, so that the cleaning and maintenance times of the separation device are reduced, and the screening efficiency and the practicability of the separation device are improved; the holding cavity can be stored the material, and radial channel can be stored the material from carrying to the holding cavity in the grinding chamber, prevents that the material from piling up in radial channel, influences separating mechanism's screening efficiency.

Drawings

Fig. 1 is a partial cross-sectional view of the present invention.

Fig. 2 is a cross-sectional view taken at a-a in fig. 1.

Fig. 3 is a schematic perspective view of the connector of the present invention.

Description of reference numerals:

1. a first mounting seat; 2. a second mounting seat; 3. a main shaft; 4. a connecting member; 5. an accommodating cavity; 6. an axial channel; 7. a radial channel; 8. a grinding barrel; 9. a grinding chamber; 10. a through hole; 11. a first connecting hole; 12. a second connecting hole; 13. connecting a hole III; 14. a straight edge surface I; 15. a straight side surface II; 16. an arc-shaped surface; 17. and (4) sharp corners.

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.

As shown in fig. 1 to 3, the present invention provides a separating device for a grinding machine, which comprises a main shaft 3 and a separating mechanism; the separation mechanism comprises a plurality of radial channels 7, a first mounting seat 1 and a second mounting seat 2 which are respectively sleeved outside the main shaft 3, a plurality of connecting pieces 4 connected to the first mounting seat 1 and the second mounting seat 2, an accommodating cavity 5 formed by enclosing the outer side wall of the main shaft 3, the inner side wall of the first mounting seat 1, the inner side wall of the second mounting seat 2 and the inner side walls of the connecting pieces 4, and axial channels 6 arranged in the main shaft 3, wherein the plurality of radial channels 7 are arranged in an annular array around the central axis of the main shaft 3, and each radial channel 7 is arranged between two adjacent connecting pieces 4; the axial channel 6 is communicated with the radial channel 7 through the accommodating cavity 5, and the first mounting seat 1 and the second mounting seat 2 are arranged at intervals.

Specifically, the separation device further comprises a grinding barrel 8, a grinding cavity 9 surrounded by the inner side wall of the grinding barrel 8, a grinding rotor rotatably arranged in the grinding cavity 9, a driving device in driving connection with the main shaft 3 and a pump body communicated with the axial channel 6, wherein the grinding cavity 9 is communicated with the radial channel 7; the grinding barrel 8 is sleeved outside the separating mechanism, one end of the main shaft 3 and the separating mechanism are both rotatably arranged in the grinding cavity 9, and the main shaft 3 and the separating mechanism synchronously rotate; the separation mechanism is sleeved outside the bottom end or the middle part of the main shaft 3, and the grinding rotor is sleeved outside the top end of the main shaft 3; the first mounting seat 1 and the second mounting seat 2 are respectively in key connection with the main shaft 3; the driving device can adopt a motor; the pump body is used for pumping the materials in the grinding cavity 9 out of the axial channel 6. In the actual installation, firmly be connected mount pad two 2 and mount pad one 1 respectively with the both ends of connecting piece 4, locate main shaft 3 outside the separating mechanism cover that will install again, and make mount pad one 1 and mount pad two 2 respectively with 3 key-type connections of main shaft, install separating mechanism and main shaft 3 in grinding chamber 9 again, thereby realize the swift installation of separating mechanism and main shaft 3, the separator's of being convenient for dismouting and maintenance, separator's simple structure, convenient production. In the actual use process, the material to be ground and the grinding medium (the grinding medium can adopt zirconia balls) are injected into the grinding cavity 9 from the feed inlet of the grinding barrel 8, the main shaft 3, the grinding rotor and the separating mechanism are driven by the driving device to rotate in the grinding cavity 9, and the grinding rotor drives the material and the grinding medium to collide and rub with each other so as to grind the material; in the grinding process, materials and grinding media are conveyed from a feed inlet of the grinding barrel 8 to a direction close to the separating mechanism under the action of the pump body, and the materials and the grinding media can generate centrifugal force under the action of the separating mechanism and the grinding rotor; because the mass of the grinding medium is greater than that of the material, the centrifugal force generated by the grinding medium is greater than that generated by the material, the output power of the pump body is adjusted, so that the suction force of the pump body acting on the grinding medium and the material is greater than that exerted on the material and less than that exerted on the grinding medium, and the material reaching the ground particle size overcomes the centrifugal force and sequentially flows through the radial channel 7, the accommodating cavity 5 and the axial channel 6 under the action of the suction force, and is finally conveyed out of the grinding barrel 8 through the axial channel 6; the grinding medium can move towards the direction far away from the connecting piece 4 and the radial channel 7 under the action of centrifugal force, so that the primary screening and separation of the materials and the grinding medium by the separating device are facilitated; the maximum diameter of the feed inlet of the radial channel 7 is smaller than the minimum diameter of the grinding medium, so that the grinding medium can be further prevented from entering the radial channel 7, the grinding medium can move towards the direction far away from the radial channel 7 under the action of centrifugal force, the problem that the ground material cannot normally enter the radial channel 7 due to the fact that the grinding medium blocks the feed inlet of the radial channel 7 can be prevented, the cleaning and maintenance times of the separation device are reduced, and the screening efficiency and the practicability of the separation device are improved; the holding cavity 5 can store the material, and radial passage 7 can store the material from grinding cavity 9 transport to holding cavity 5 in, prevents that the material from piling up in radial passage 7, influences separating mechanism's screening efficiency.

Furthermore, the separating device further comprises a limiting mechanism arranged on the main shaft 3, and the limiting mechanism is used for limiting the first mounting seat 1 or/and the second mounting seat 2 to move relative to the main shaft 3 in the axial direction of the main shaft 3.

Specifically, the limiting mechanism is a limiting part formed by outwardly protruding the outer side wall of the spindle 3, and the limiting part can be clamped in the first mounting seat 1 or/and the second mounting seat 2. The separating mechanism is firmly connected with the main shaft 3 through the limiting mechanism, axial limiting is carried out, relative displacement of the separating mechanism and the main shaft 3 in the axial direction is avoided when the separating device is used, and stability of the separating mechanism and the main shaft 3 in synchronous rotation is improved.

Further, a plurality of the connecting pieces 4 are distributed along the central axis of the main shaft 3 in an annular array; preferably, the number of said connecting pieces 4 is 6-18, so that the structure of the separating apparatus is more compact and stable.

Further, the spindle 3 comprises a spindle body and a plurality of through holes 10 arranged in the circumferential direction of the spindle body, and the axial channel 6 is arranged in the spindle body; the axial channel 6 communicates with the housing cavity 5 through a through hole 10.

In particular, said axial channel 6 is arranged coaxially to the central axis of the main shaft 3; a plurality of said through holes 10 are distributed in an annular array along the central axis of the axial channel 6. Through a plurality of through-holes 10 intercommunication axial passage 6 and holding cavity 5, the material accessible in the holding cavity 5 is quick to be carried to axial passage 6 in a plurality of through-holes 10, can avoid the material to take place to block up in holding cavity 5, has improved separator's screening efficiency.

Further, the first mounting seat 1 and the second mounting seat 2 are detachably connected with two ends of the connecting piece 4 respectively; specifically, connecting piece 4 includes connecting piece body and the connecting hole three 13 that runs through the connecting piece body setting, be provided with connecting hole one 11 with the three 13 intercommunications of connecting hole on the mount pad 1, be provided with the connecting hole two 12 with the three 13 intercommunications of connecting hole on the mount pad two 2, mount pad one 1, connecting piece body and mount pad two 2 are connected via the locking part, the locking part is connected with connecting hole one 11, connecting hole three 13 and connecting hole two 12 detachably.

In the actual use process, locking parts (screws, bolts or the like) are sequentially inserted into the connecting holes II 12, the connecting holes III 13 and the connecting holes I11 so as to firmly fix the connecting piece 4 between the mounting seat I1 and the mounting seat II 2, the main shaft 3 drives the mounting seat I1, the connecting piece 4 and the mounting seat II 2 to rotate in the use process of the separating device, and the mounting seat I1, the connecting piece 4 and the mounting seat II 2 are not easy to shift or shake, so that the stability of the separating device in the use process is improved; the mounting seat I1, the connecting piece 4 and the mounting seat II 2 are convenient to disassemble and assemble, high in assembly efficiency and convenient to repair and maintain the separating device.

Further, the connecting piece 4 comprises a first straight-side surface 14, an arc-shaped surface 16 and a second straight-side surface 15 which are sequentially connected end to end, and the radial channel 7 is formed by enclosing the inner side wall of the first mounting seat 1, the inner side wall of the second mounting seat 2, the second straight-side surface 15 of one connecting piece 4 and the first straight-side surface 14 of the other adjacent connecting piece 4. Specifically, the straight side surfaces I14 and the straight side surfaces II 15 enclose sharp corners 17, the sharp corners 17 of the plurality of connecting pieces 4 are distributed outside the main shaft 3 in an annular array and enclose the accommodating cavity 5 in a regular polygonal structure, and the arc surfaces 16 of the plurality of connecting pieces 4 enclose a circle.

In particular, said arc-shaped surface 16 is arranged close to the inner side wall of the grinding bowl 8. In the actual use process, the connecting piece 4 is set to be in a scalene sector shape, and the first straight side surface 14 and the second straight side surface 15 are easy to process; when the connecting pieces 4 are respectively arranged on the first mounting seat 1 and the second mounting seat 2, the distance between the adjacent first straight-edge surfaces 14 and the adjacent second straight-edge surfaces 15 can be as small as possible, so that the width of the radial channel 7 is as small as possible; preferably, the width of the radial channels 7 is 0.1 mm to 10 mm, and the width of the radial channels 7 can be adjusted or selected according to the diameter of the grinding media.

Further, the radial channels 7 are rectilinear in projection view.

Specifically, the connecting piece 4 is obliquely arranged on the first mounting seat 1 and the second mounting seat 2. In the actual installation process, the connecting pieces 4 are obliquely arranged on the first mounting seat 1 and the second mounting seat 2 respectively, so that the radial channels 7 are obliquely arranged; the adjacent first straight-edge surface 14 and the adjacent second straight-edge surface 15 are arranged in parallel, the radial channels 7 are arranged along the length directions of the first straight-edge surface 14 and the second straight-edge surface 15, the inclination direction of the radial channels 7 is opposite to the rotation direction of the spindle 3, the rotation direction formed by the radial channels 7 is A, the rotation direction of the spindle 3 is B, the rotation directions of the A and the B are opposite, and a grinding medium is not easy to block a feed port of the radial channels 7 during centrifugal rotation, so that the centrifugal and screening efficiency of the separating mechanism is improved. Compared with the arc-shaped or other shaped radial channels 7, the linear radial channel 7 of the utility model has no barriers or dead angles, materials are not easy to deposit in the radial channel 7, the smoothness of the radial channel 7 can be ensured, the cleaning and maintenance times of the separating mechanism are reduced, and the mounting and production of the separating mechanism are convenient.

Specifically, the connecting piece 4 is of an integrated structure, and the connecting piece 4 is convenient to produce and good in quality; the main shaft 3, the first mounting seat 1, the connecting piece 4 and the second mounting seat 2 can be made of hard alloy (such as tungsten carbide alloy), production and processing efficiency of the main shaft 3, the first mounting seat 1, the connecting piece 4 and the second mounting seat 2 is improved, service life of the main shaft is prolonged, and production cost of the main shaft 3, the first mounting seat 1, the connecting piece 4 and the second mounting seat 2 is reduced.

Furthermore, projection views of the first mounting seat 1 and the second mounting seat 2 are circular, the first mounting seat 1 and the second mounting seat 2 are arranged in parallel, the circular first mounting seat 1 and the circular second mounting seat 2 are easy to produce and mount, and production raw materials are saved; the first mounting seat 1 and the second mounting seat 2 can be tightly attached to the inner side wall of the grinding cavity 9, so that the structure of the separation device is more compact.

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

1. A separating apparatus for a grinding mill, characterized by: comprises a main shaft (3) and a separating mechanism; the separation mechanism comprises a plurality of radial channels (7), a first mounting seat (1) and a second mounting seat (2) which are respectively connected to the outside of the main shaft (3), a plurality of connecting pieces (4) connected to the first mounting seat (1) and the second mounting seat (2), an accommodating cavity (5) formed by enclosing the outer side wall of the main shaft (3), the inner side wall of the first mounting seat (1), the inner side wall of the second mounting seat (2) and the inner side walls of the connecting pieces (4), and an axial channel (6) arranged in the main shaft (3), wherein the plurality of radial channels (7) are arranged around the main shaft (3), and the radial channels (7) are arranged between two adjacent connecting pieces (4); the axial channel (6) is communicated with the radial channel (7) through the accommodating cavity (5).

2. A separating apparatus for a grinding mill according to claim 1, characterised in that: the separating device further comprises a limiting mechanism arranged on the main shaft (3), and the limiting mechanism is used for limiting the first mounting seat (1) or/and the second mounting seat (2) to move relative to the main shaft (3) in the axial direction of the main shaft (3).

3. A separating apparatus for a grinding mill according to claim 1, characterised in that: the connecting pieces (4) are distributed in an annular array along the central axis of the main shaft (3).

4. A separating apparatus for a grinding mill according to claim 1, characterised in that: the main shaft (3) comprises a main shaft body and a plurality of through holes (10) arranged in the circumferential direction of the main shaft body, and the axial channel (6) is arranged in the main shaft body; the axial channel (6) is communicated with the accommodating cavity (5) through a through hole (10).

5. A separating apparatus for a grinding mill according to claim 1, characterised in that: the first mounting seat (1) and the second mounting seat (2) are detachably connected with the connecting piece (4) respectively.

6. A separating device for a grinding mill according to claim 5, characterised in that: connecting piece (4) include connecting piece body and the connecting hole three (13) that runs through the connecting piece body setting, be provided with on mount pad (1) connecting hole one (11) with connecting hole three (13) intercommunication, be provided with on mount pad two (2) connecting hole two (12) with connecting hole three (13) intercommunication, mount pad one (1), connecting piece body and mount pad two (2) are connected via the locking part, the locking part is connected with connecting hole one (11), connecting hole three (13) and connecting hole two (12) detachably.

7. A separating apparatus for a grinding mill according to claim 1, characterised in that: the connecting piece (4) comprises a first straight-side surface (14), an arc-shaped surface (16) and a second straight-side surface (15) which are sequentially connected end to end, and the radial channel (7) is formed by enclosing the inner side wall of the first mounting seat (1), the inner side wall of the second mounting seat (2), the second straight-side surface (15) of one connecting piece (4) and the first straight-side surface (14) of the other adjacent connecting piece (4).

8. A separating device for a grinding mill according to claim 1 or 7, characterized in that: the projection view of the radial channel (7) is linear.

9. A separating apparatus for a grinding mill according to claim 7, characterised in that: the plurality of radial channels (7) form a rotating direction A, the rotating direction of the main shaft (3) is B, and the rotating directions A and B are opposite.

10. A separating apparatus for a grinding mill according to claim 7 or 9, characterised in that: sharp corners (17) are formed by enclosing the first straight-edge surface (14) and the second straight-edge surface (15), and the plurality of sharp corners (17) are distributed outside the main shaft (3) in an annular array and enclose an accommodating cavity (5) with a regular polygon structure; the arc-shaped surfaces (16) of the connecting pieces (4) are encircled into a circle.