CN113117886A

CN113117886A - Magnetic separation device

Info

Publication number: CN113117886A
Application number: CN202110444696.7A
Authority: CN
Inventors: 黄建瑞; 赵焱; 冶生有; 王红霞
Original assignee: Ningbo Kocel Machine Tool Auxiliary Machinery Co Ltd
Current assignee: Ningbo Kocel Machine Tool Auxiliary Machinery Co Ltd
Priority date: 2021-04-24
Filing date: 2021-04-24
Publication date: 2021-07-16

Abstract

A magnetic separation device, said magnetic separation device comprising: the driving part is fixedly arranged at the top of the fixed part, and an output shaft faces the cavity; the rotary part is arranged in the cavity in the middle, and the rotary center of the rotary part is connected with the output shaft of the driving part; magnetic components are fixed on the wall side of the revolving part and are spirally distributed on the revolving part; the chip removal port is formed in the top end of the outer wall of the fixing part; the driving part drives the rotary part to rotate when rotating, the rotary part drives the chips in the cutting fluid to spirally climb along the outer wall of the fixed part, and the chips are discharged through the chip discharge port.

Description

Magnetic separation device

Technical Field

The invention discloses a scrap-liquid separating device, and relates to a magnetic separating device.

Background

In the machining process, the separation of the generated cutting chips and the recovery of the cutting fluid are a crucial link. The machine tool has strict requirements on the use of cutting fluid, the cutting fluid after cutting chips are separated must meet the precision requirements required by the functions of water outlet of the center of the cutter, chip flushing of a clamp and the like so as to be recycled, and meanwhile, the damage to various water pumps can be greatly reduced by recycling the separated cutting fluid. At present, in the development of the industry, the machining is increasingly precise, scrap iron generated in the machining process can only meet the requirement of scrap removal of larger scrap iron through a common chain plate or a scraper chip removal device, but the problem of filtering and recycling cutting fluid containing smaller scrap iron cannot be solved. If a roller chip removal device or a paper tape filtering and purifying device is used, the cost and the long-term consumption of consumables can greatly increase the cost investment. The invention aims to provide a low-cost high-efficiency filtering device, which realizes high-efficiency separation of scrap iron in cutting fluid and effective recycling of the cutting fluid.

Disclosure of Invention

In view of the above, it is desirable to provide a magnetic separation device that addresses the above problems. The spiral permanent magnet arranged on the magnetic bucket adsorbs iron chips in the cutting fluid, and the adsorbed iron chips are discharged through continuous rotation, so that the separation efficiency is high and the separation effect is good when the chips and the fluid are separated.

In one embodiment, the outer wall of the fixing part is provided with a spiral chip guide groove at a position matching with the magnetic assembly, and the top of the spiral chip guide groove is communicated with the chip discharge port.

In one embodiment, the bottom of the spiral chip guide groove is lower than the lowest end of the magnetic component at the corresponding position.

In one embodiment, a sleeve matched with the fixing part in shape is sleeved outside the fixing part, and an annular cavity is formed between the outer wall of the fixing part and the sleeve; the spiral chip guide groove is positioned in the annular cavity.

In one embodiment, a liquid inlet and a liquid outlet are arranged on the side surface of the sleeve, and the liquid inlet and the liquid outlet are communicated with the annular cavity.

In one embodiment, the liquid outlet is higher than the liquid inlet, and the liquid outlet is lower than the chip removal port.

In one embodiment, the magnetic separation device can be provided in plurality and used in series and/or parallel combination through a pipeline.

In one embodiment, a protruding connecting shaft is arranged at one end of the rotating part far away from the driving part, and the connecting shaft is rotatably connected with the bottom of the fixing part.

In one embodiment, the magnetic assembly includes a plurality of magnets and a plurality of non-magnetic members, each of the magnets being disposed adjacent to each of the non-magnetic assemblies.

In one embodiment, a spiral support matched with the magnetic assembly is further fixedly arranged on the outer wall of the fixing part, and the magnetic assembly is fixed on the spiral support.

Above-mentioned magnetic separation device, the magnetic component through spiral distribution can make the iron fillings in the liquid spiral climbing discharge under the adsorption of magnetic force, realizes the separation of iron fillings and liquid. Not only the scrap liquid is purified, but also the scrap iron is automatically discharged. The chip removal port for spirally climbing and discharging chips is higher than the liquid outlet, so that the discharged chips are drier, the carrying of the chip liquid is reduced, and the chip liquid is convenient to recycle.

Drawings

FIG. 1 is a schematic isometric view of a magnetic separation apparatus;

FIG. 2 is a schematic cross-sectional view of the first embodiment;

FIG. 3 is a schematic cross-sectional view of an embodiment with an additional helical guide groove;

FIG. 4 is a schematic sectional view of the second embodiment;

FIG. 5 is a schematic view of a third embodiment;

FIG. 6 is a schematic sectional view of a part of a third embodiment;

in the drawings:

10-motor, 20-fixed part, 30-rotary part, 40-magnetic component;

201-a fixed cylinder, 202-a base, 203-a top seat, 204-a chip removal port, 205-a spiral guide groove, 206-a sleeve, 207-a connecting seat, 208-a liquid inlet and 209-a liquid outlet; 301-rotating cylinder, 302-rotating shaft, 401-magnet, 402-nylon block, 403-spiral support.

Detailed Description

To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical," "horizontal," "left," "right," "top," "bottom," "top," and the like are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

In one embodiment, a magnetic separation device, the magnetic separation device comprising: the driving part is fixedly arranged at the top of the fixed part, and an output shaft faces the cavity; the rotary part is arranged in the cavity in the middle, and the rotary center of the rotary part is connected with the output shaft of the driving part; magnetic components are fixed on the wall side of the revolving part and are spirally distributed on the revolving part; the chip removal port is formed in the top end of the outer wall of the fixing part; the driving part drives the rotary part to rotate when rotating, the rotary part drives the chips in the cutting fluid to spirally climb along the outer wall of the fixed part, and the chips are discharged through the chip discharge port.

The magnetic separation device is described below with reference to specific embodiments to further understand the concept of the magnetic separation device.

Example one

Referring to fig. 1 and 2, a magnetic separator includes: the driving member 10, a fixing portion 20 having a cavity therein, and a rotating portion 30. Specifically, the fixing portion 20 includes a fixing cylinder 201, a base 202, and a top 203. The fixed cylinder 101 is made of a stainless steel thin-wall cylinder, the bottom of the fixed cylinder is fixedly connected with the base 202, and the top of the fixed cylinder is connected with the top seat 203. The top seat comprises a circular end cover with a hole in the middle and a bearing seat, the bearing seat is fixed on one surface of the circular end cover in the middle, and the other surface of the end cover is connected with the upper end surface of the fixed cylinder through a fastener. The turn 30 includes a turn cylinder 301 and a turn shaft 302. The rotary cylinder can also be made of a thin-wall cylinder, and the upper end and the lower end of the rotary cylinder are sealed. The rotating shaft is fixed at the center of the end face of the rotating cylinder, and preferably, the rotating shaft is fixedly connected with the end face of the rotating cylinder through a bolt. A magnetic assembly 40 is fixedly mounted on the outer wall of the rotating cylinder. Furthermore, the magnetic components are spirally distributed on the outer circumferential surface of the rotary cylinder, so that the rotary cylinder, the rotary shaft and the magnetic components form a magnetic cylinder, the maximum circumferential surface of the magnetic barrel is smaller than the inner circle of the fixed cylinder, and the magnetic barrel is spaced after being embedded into the fixed cylinder. It should be noted that, in order to make the iron filings adsorbed on the outer wall of the fixed cylinder be discharged in a concentrated manner, the side surface of the top end of the fixed cylinder, that is, the side close to the end cover, is provided with the scrap guide port 204. The chip guide port can adopt a U-shaped groove and is fixed on the fixed cylinder, and the chip guide port is close to the tail end of the spiral line of the magnetic assembly.

When the magnetic cylinder is installed, the end cover is firstly disassembled, then the magnetic cylinder is arranged in the fixed cylinder, the rotating shaft upwards protrudes out of the fixed cylinder, and at the moment, the cover plate penetrates through the rotating shaft to be connected with the fixed cylinder. Then two rows of bearings are arranged in the bearing seat and sleeved on the rotating shaft and fixedly connected with the end cover. In order to ensure the installation reliability of the magnetic drum, the rotary shaft and the bearing seat are provided with check rings to limit the rotary shaft. Further, in order to automate the rotation of the magnetic cylinder and improve the separation efficiency, a driving member 10 is fixedly installed on the bearing housing. The driving member 10 can be replaced by a speed reducing motor, and the output shaft of the speed reducing motor is in key connection with a rotating shaft to realize transmission (the center of the rotating shaft is provided with a hole matched with the output shaft of the motor). Therefore, when the motor rotates, the magnetic cylinder can be driven to rotate, and the spiral magnetic assembly arranged on the magnetic cylinder can drive the iron chips to realize spiral climbing on the outer wall of the fixed cylinder when the magnetic cylinder rotates, and then the iron chips are discharged from the chip discharge port.

When the magnetic separation device with the structure is placed in a liquid tank needing to remove scrap iron, the spiral rotation of the magnetic assembly can adsorb the scrap in the liquid tank to the outside of the fixed cylinder, then the scrap is climbed section by section through spiral rotation, and the scrap is conveyed to the top from the base and discharged, so that the cleaning of the scrap in the liquid tank is realized.

It should be noted that, when the size of the revolving portion is larger, the load required during rotation is also larger, and at this time, in order to make the rotation of the revolving portion more flexible and stable, the revolving portion is also provided with a rotating shaft at one end close to the base, the rotating shaft is coaxially arranged with the revolving shaft 302, and the rotating shaft and the base can also be rotatably connected by a bearing, and the specific structure can be the same as the connecting structure with the bearing seat after revolving.

Referring to fig. 3, in an embodiment, in order to more efficiently discharge chips adsorbed on the outer wall of the fixed cylinder, spiral chip guide grooves 205 are formed on the outer wall of the fixed cylinder. The spiral chip guide groove is arranged at a position matched with the spiral line of the magnetic assembly, optimally, the screw pitch of the spiral chip guide groove is the same as that of the spiral line of the magnetic assembly, the rotating direction is the same, and an inner spiral line and an outer spiral line are formed in parallel. The spiral chip guide groove is a thin plate with an L-shaped section, is spirally wound on the outer wall of the fixed cylinder and forms a groove with a U-shaped section together with the fixed cylinder. It should be noted that the top end of the spiral guide groove communicates with the exhaust port 204. Therefore, the chips adsorbed by the magnetic assembly can be discharged more smoothly and efficiently through the guide of the spiral chip guide groove.

It should be noted that, when the rotary cylinder is installed, the rotation direction of the magnetic assembly on the rotary cylinder is ensured to be consistent with the rotation direction of the spiral guide groove, and the rotation direction of the motor also needs to ensure that the rotation spiral line of the magnetic assembly runs upwards.

In one embodiment, in order to improve the separation efficiency of the magnetic separation device, that is, to discharge as much of the chips adsorbed by the magnetic assembly as possible, the bottom of the spiral guide groove 205 is lower than the lowest end of the magnetic assembly at the same position, so that the chips adsorbed by the magnetic assembly on the fixed cylinder are completely positioned in the spiral chip guide groove and then spirally climb up and discharged from the spiral chip guide groove by the rotation of the motor. The accidental falling in the rotating process can not occur, and the working efficiency is not influenced.

In order to make the chips adsorbed on the fixed cylinder smoothly enter the spiral chip guide groove, the lowest end (the end far away from the speed reduction motor) of the spiral chip guide groove is lower than the lowest end of the magnetic assembly, and optimally, the starting point of the spiral chip guide groove and the starting point of the magnetic assembly are on the same vertical line.

It should be noted that if the required magnetic separation device has a small volume and the required separation capacity is not too large, the rotary cylinder of the rotary part can also be made of a solid round shaft in consideration of simple structure, convenient manufacture and low cost.

In one embodiment, in order to isolate the magnetic assembly from the scrap liquid and prolong the service life of the magnetic assembly, the connection between the fixed cylinder and the base in the fixed part can be set to be in sealing connection, so that when the magnetic separation device is placed in the liquid tank, only the fixed cylinder and the base are in contact with the scrap liquid, and the abrasion loss of the magnetic assembly and the corrosion of the cutting liquid are avoided.

Carry out two

In order to make the magnetic separation device usable alone, referring to fig. 4, a sleeve 206 having the same shape as the fixed cylinder and larger than the fixed cylinder may be disposed outside the fixed cylinder according to the first embodiment. The sleeve 206 and the fixed cylinder 201 are sealed and sealed at one end near the base and open at the other end. At the moment, an annular cavity is formed between the fixed cylinder and the sleeve, and the spiral guide groove is positioned in the annular cavity. Furthermore, a connecting seat 207 can be arranged at the bottom of the sleeve and the fixed cylinder, the connecting seat is connected with the fixed cylinder, the sleeve and the base through bolts, and a mounting hole can be further formed in the connecting seat to fixedly mount the magnetic separation device, so that stable work is facilitated. Specifically, the connecting seat 207 may be a rotary seat with a cross-section shaped like a Chinese character 'ji', and a through hole is formed in the middle. The fixed cylinder is hermetically connected with the bottom of the sleeve and then is fixed with the connecting seat through threads; the base passes through the through-hole of connecting seat and is connected with the connecting seat through the fastener. Thus, the annular cavity is completely isolated from the rotary part, and the liquid is injected into the annular cavity to separate the scraps from the liquid.

Furthermore, in order to facilitate the separation of the magnetic separation device from the scraps and the liquid, a liquid inlet 208 and a liquid outlet 209 which are communicated with the annular cavity are formed on the side wall of the sleeve. Dirty liquid enters the annular cavity through the liquid inlet, the scrap iron is discharged through the spiral chip guide groove under the rotation action of the magnetic barrel, and clean liquid is discharged through the liquid outlet. The liquid inlet is preferably arranged on a plane parallel to the plane of the starting point of the spiral chip guide groove.

It should be noted that the height of the liquid inlet is lower than that of the liquid outlet, and the height of the liquid outlet is lower than that of the chip removal port. Optimally, the liquid inlet is arranged at the lowest end of the sleeve, the liquid outlet is arranged at the highest end of the sleeve, and the chip outlet is arranged at the highest end of the fixed sleeve and is higher than the half pitch of the liquid outlet. The inlet is low, and the liquid outlet is high, at magnetic separation device during operation, can follow the bottommost separation of bits liquid that begins, and the walking route of smear metal is longest and can the at utmost separate dirty liquid for dirty liquid can obtain abundant filtration. The position of the chip removal port is highest, so that the travel path of the absorbed chips can be further prolonged, the water carrying amount of the chips is small, and the drying degree is higher.

The magnetic separation devices in the above embodiments can be used in combination in parallel and/or in series through pipes in practical use. When the precision of the cutting fluid after separation is high, a plurality of magnetic separation devices can be used in series. Namely, the liquid discharged from the liquid outlet of the first magnetic separation device enters the liquid inlet of the second magnetic separation device, and the liquid outlet of the second magnetic separation device is communicated with the liquid inlet of the third magnetic separation device and is sequentially connected as required. When the flow of the cutting fluid needing to be separated is large, a plurality of magnetic separation devices are used in parallel. That is, the liquid inlets of the plurality of magnetic separation devices are all connected with the liquid container.

EXAMPLE III

Referring to fig. 5 and 6, in the above embodiment, in order to make the installation of the magnetic assembly and the rotating part easier and more convenient, the magnetic assembly 40 may include a plurality of magnets 401 and a plurality of nylon blocks 402, which are arranged adjacent to each other to form a spiral shape. Through the nylon block, the nylon block is separated between two adjacent magnets, mutual adsorption of the magnets is avoided, and the installation difficulty is reduced. In order to obtain the spiral shape of the magnetic assembly more conveniently and accurately, a spiral support 403 may be provided on the outer wall of the rotating cylinder, and the spiral support may be used as a positioning template of the magnetic assembly. The screw pitch of the screw bracket is the same as that of the magnetic assembly, and a screw channel for mounting the magnetic assembly is reserved on the screw bracket. Namely, a vacant position for installing the magnetic component is reserved on the spiral bracket. During the installation, paste the outer wall of revolving cylinder with the helical support through gluing now, then paste magnet and nylon piece in the helical passage of helical support through AB glue one by one.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A magnetic separation device, said magnetic separation device comprising: a driving piece, a fixed part and a rotating part, wherein the fixed part and the rotating part are internally provided with a circular cavity,

the driving piece is fixedly arranged at the top of the fixing part, and the output shaft faces the cavity;

the rotary part is arranged in the cavity in the middle, and the rotary center of the rotary part is connected with the output shaft of the driving part;

magnetic components are fixed on the wall side of the revolving part and are spirally distributed on the revolving part;

the chip removal port is formed in the top end of the outer wall of the fixing part;

the driving part drives the rotary part to rotate when rotating, the rotary part drives the chips in the cutting fluid to spirally climb along the outer wall of the fixed part, and the chips are discharged through the chip discharge port.

2. The magnetic separation device of claim 1, wherein the outer wall of the fixing portion is provided with a spiral chip guide groove at a position matching the magnetic assembly, and the top of the spiral chip guide groove is communicated with the chip discharge port.

3. A magnetic separation device according to claim 2 wherein the base of the helical flutes is below the lowermost end of the correspondingly located magnetic assembly.

4. The magnetic separator according to claim 3, wherein a sleeve with a shape matching with the shape of the fixed part is sleeved outside the fixed part, and an annular cavity is formed between the outer wall of the fixed part and the sleeve; the spiral chip guide groove is positioned in the annular cavity.

5. The magnetic separation device of claim 4, wherein a liquid inlet and a liquid outlet are arranged on the side surface of the sleeve, and the liquid inlet and the liquid outlet are communicated with the annular cavity.

6. The magnetic separation device of claim 5 wherein the liquid outlet is at a higher elevation than the liquid inlet and the liquid outlet is at a lower elevation than the exhaust port.

7. The magnetic separation device of claim 6, wherein the magnetic separation device can be provided in plurality and used in combination of series connection and/or parallel connection through pipelines.

8. The magnetic separation device of claim 1 wherein the rotary part is provided with a protruding connecting shaft at an end away from the driving part, the connecting shaft being rotatably connected to the bottom of the fixed part.

9. A magnetic separation device according to claim 1 wherein the magnetic assembly comprises a plurality of magnets and a plurality of non-magnetic members, each of the magnets being disposed adjacent to each of the non-magnetic assemblies.

10. The magnetic separation device of claim 1, wherein a spiral support matched with the magnetic assembly is further fixedly arranged on the outer wall of the fixing part, and the magnetic assembly is fixed on the spiral support.