CN117047117B - Electrode bar cleaning system for plasma rotary electrode atomization powder preparation equipment - Google Patents
Electrode bar cleaning system for plasma rotary electrode atomization powder preparation equipment Download PDFInfo
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- CN117047117B CN117047117B CN202311323547.0A CN202311323547A CN117047117B CN 117047117 B CN117047117 B CN 117047117B CN 202311323547 A CN202311323547 A CN 202311323547A CN 117047117 B CN117047117 B CN 117047117B
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- electrode bar
- connecting rod
- electrode
- cleaning system
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- 239000000843 powder Substances 0.000 title claims abstract description 39
- 238000004140 cleaning Methods 0.000 title claims abstract description 30
- 238000000889 atomisation Methods 0.000 title claims abstract description 11
- 238000002360 preparation method Methods 0.000 title description 4
- 238000007789 sealing Methods 0.000 claims abstract description 51
- 239000003595 mist Substances 0.000 claims abstract description 41
- 239000000428 dust Substances 0.000 claims abstract description 39
- 238000000034 method Methods 0.000 claims abstract description 12
- 230000001681 protective effect Effects 0.000 claims description 21
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 230000002265 prevention Effects 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 28
- 238000010298 pulverizing process Methods 0.000 abstract description 16
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 abstract description 11
- 229910052799 carbon Inorganic materials 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 2
- 210000003437 trachea Anatomy 0.000 abstract 4
- 230000000903 blocking effect Effects 0.000 abstract 1
- 238000009423 ventilation Methods 0.000 abstract 1
- 239000002184 metal Substances 0.000 description 14
- 238000000926 separation method Methods 0.000 description 9
- 238000010521 absorption reaction Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000003749 cleanliness Effects 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 238000004663 powder metallurgy Methods 0.000 description 2
- 238000010146 3D printing Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/14—Making metallic powder or suspensions thereof using physical processes using electric discharge
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/02—Cleaning by the force of jets, e.g. blowing-out cavities
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Abstract
The embodiment of the disclosure relates to an electrode bar cleaning system for a plasma rotary electrode atomization pulverizing device. The system comprises: shafting subassembly, shafting shielding assembly, equipment protection cover, vortex dustproof subassembly and oil removal water conservancy diversion subassembly. The shafting assembly is shielded by the shafting sealing cover, and most of carbon powder and oil mist in the shafting sealing cover are removed by matching with the dust collection component. Through installing annular trachea on the mounting, form the vortex, in the powder process, the intraductal continuous ventilation of annular trachea, electrode bar and connective bar pass annular trachea, can be with its surface because the carbon dust and the oil mist of gathering in the negative pressure zone that high-speed rotation formed are clear away totally by the vortex that annular trachea jet-propelled formed, play the effect on clean electrode bar and connective bar surface. Blocking oil mist overflowed from a gap between the connecting rod and the through hole in the shafting sealing cover to prevent overflow; and carbon powder blown out by the vortex dust-proof component can be prevented from being deposited at a gap between the connecting rod and the through hole.
Description
Technical Field
The embodiment of the disclosure relates to the technical field of atomization powder manufacturing equipment, in particular to an electrode bar cleaning system for plasma rotary electrode atomization powder manufacturing equipment.
Background
The metal powder produced by the plasma rotary electrode powder process (Plasma rotating electrode process, PREP) technology has the advantages of high sphericity, good fluidity, few satellite powder and the like, and is widely applied to the field of powder metallurgy by virtue of the excellent performance. In recent years, with the continuous development of metal powder metallurgy and rapid prototyping (3D printing) technologies, particularly in high-end application fields such as aerospace and medical treatment, higher requirements are put on the purity of metal powder.
In the related art, a rotating shaft of the traditional plasma rotating electrode powder making equipment mainly comprises a mechanical shaft and an electric spindle, wherein the mechanical shaft mainly comprises a constraint bearing set, a power supply shaft core and a carbon brush assembly, the carbon brush is tightly pressed by a spring to supply power to the power supply shaft core in a sliding friction mode, a large amount of carbon powder can be generated in the process, and meanwhile, an oil mist can be generated by a mechanical shaft oil-gas lubrication system and dispersed in air. In the pulverizing process, part of carbon powder and oil mist are removed by a dust removing system of equipment, and the other part of carbon powder and oil mist are collected in a negative pressure area under the action of negative pressure suction because a high-speed rotating shaft drives a connecting rod and an electrode bar to rotate at a high speed, so that the surface cleanliness of the connecting rod and the electrode bar is affected, and the pulverizing process is adversely affected.
Accordingly, there is a need to improve one or more problems in the related art as described above.
It should be noted that the description herein is not admitted to be prior art by inclusion in this section.
Disclosure of Invention
It is an object of embodiments of the present disclosure to provide an electrode bar cleaning system for a plasma rotary electrode atomizing milling apparatus, which overcomes one or more of the problems due to the limitations and disadvantages of the related art, at least to some extent.
According to an embodiment of the present disclosure, there is provided an electrode bar cleaning system for a plasma rotary electrode atomizing pulverizing apparatus, the electrode bar cleaning system including:
the shafting assembly comprises a mechanical shaft and a connecting rod, and the mechanical shaft is connected with one end of the connecting rod;
the shafting shielding assembly comprises a shafting sealing cover and a dust collection component, the mechanical shaft is arranged in the shafting sealing cover, a through hole is formed in the side wall of the shafting sealing cover, the connecting rod penetrates through the through hole, the other end of the connecting rod is used for arranging electrode bars, and the dust collection component is communicated with the shafting sealing cover through a dust collection pipeline so as to suck dust and oil mist in the shafting sealing cover;
the shafting shielding assembly is arranged in the equipment protecting cover;
the vortex dustproof assembly comprises a fixing piece and an annular air pipe, wherein the fixing piece is fixed on the equipment protection cover, the annular air pipe is arranged on the fixing piece, the connecting rod penetrates through the annular air pipe, a plurality of air inlets are formed in the outer side wall of the annular air pipe, and a plurality of air outlets are formed in the inner side wall of the annular air pipe;
the oil removal guide assembly comprises a protective cover, wherein the protective cover is arranged on the mechanical shaft, and the protective cover is arranged in the shaft system sealing cover so as to prevent dust and oil mist from overflowing from the through hole.
In an embodiment of the disclosure, the air outlet and the inner side wall of the annular air pipe form a preset angle, and the preset angle is smaller than 90 °.
In an embodiment of the disclosure, a relationship between a gas flow rate of the gas outlet and a gas flow rate of any point on the surface of the electrode bar is:
V 2 sinθ＞V 1 （1）
wherein V is 1 The flow velocity of the gas at any point on the surface of the electrode bar is V 2 And θ is a preset angle between the gas outlet and the inner side wall of the annular gas pipe.
In an embodiment of the disclosure, the air outlets are uniformly distributed on the inner side wall of the annular air pipe, and each air outlet is 5-20 mm apart.
In an embodiment of the disclosure, the diameter of the air outlet is 1-5 mm.
In an embodiment of the disclosure, the diameter of the through hole is 1-10 mm larger than the diameter of the connecting rod.
In an embodiment of the disclosure, the electric spindle is further included; the electric spindle is arranged in the shafting sealing cover and is connected with the mechanical shaft.
In one embodiment of the disclosure, the device further comprises a shafting base, wherein the shafting shielding component is arranged on the shafting base; the shafting shielding assembly and the vortex dust prevention assembly are both arranged in the equipment protection cover.
In an embodiment of the disclosure, the air pump is further included; the air pump is arranged in the equipment protection cover, and the air pump is communicated with the air inlet through an air pipe.
The technical scheme provided by the embodiment of the disclosure can comprise the following beneficial effects:
in the embodiment of the disclosure, through the electrode bar cleaning system for the plasma rotary electrode atomization powder making device, in the first aspect, the mechanical shaft and the connecting rod are shielded by the shaft system sealing cover, and the dust collection pipeline sucks carbon powder and oil mist in the shaft system sealing cover into the dust collection component, so that the carbon powder and the oil mist are prevented from being dispersed in the shaft system sealing cover or attached to the connecting rod and the electrode bar. In the second aspect, the electrode bar and the connecting rod penetrate through the annular air pipe, a negative pressure area is formed on the surface of the connecting rod due to high-speed rotation of the connecting rod, and carbon powder and oil mist accumulated in the negative pressure area are cleared by vortex formed by air injection of the annular air pipe, so that the electrode bar and the surface of the connecting rod are cleaned. In the third aspect, a protective cover is arranged at the connecting end of the connecting rod and the mechanical shaft, the protective cover is arranged in the shafting sealing cover, oil mist overflowed at the gap between the connecting rod and the through hole is rapidly gathered in the negative pressure area, and the protective cover can block the oil mist overflowed at the gap between the connecting rod and the through hole in the shafting sealing cover to prevent the oil mist from overflowing; and carbon powder blown out by the vortex dust-proof component can be prevented from being deposited at a gap between the connecting rod and the through hole.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure. It will be apparent to those of ordinary skill in the art that the drawings in the following description are merely examples of the disclosure and that other drawings may be derived from them without undue effort.
Fig. 1 illustrates a schematic configuration of an electrode bar cleaning system for a plasma rotary electrode atomizing pulverizing apparatus according to an exemplary embodiment of the present disclosure;
FIG. 2 illustrates a schematic diagram of a vortex dust prevention assembly in an exemplary embodiment of the present disclosure;
FIG. 3 illustrates a schematic diagram of the positional relationship between a connecting rod, electrode bar, mechanical shaft, and shield in an exemplary embodiment of the present disclosure;
FIG. 4 is a schematic diagram illustrating the relationship between gas flow rate at the gas outlet and gas flow rate at any point on the surface of an electrode bar in an exemplary embodiment of the present disclosure;
FIG. 5 is a photograph of the outer surface of a connecting rod after preparing metal powder without assembling the system in one embodiment of the present disclosure;
FIG. 6 is a photograph of the outer surface of a connecting rod after metal powder is prepared under the system conditions of assembly in one embodiment of the present disclosure;
FIG. 7 is a photograph of the outer surface of a connecting rod after preparing metal powder without assembling the system in another embodiment of the present disclosure;
fig. 8 shows a photograph of the outer surface of a connecting rod after preparing metal powder under the conditions of assembling the system in another embodiment of the present disclosure.
In the figure, 101, connecting rods; 102. electrode bar stock; 103. a mechanical shaft; 104. an electric spindle; 105. a shafting base; 106. a shafting sealing cover; 107. a device protection cover; 108. a dust collection pipeline; 109. a dust collection part; 200. a vortex dust prevention assembly; 201. an annular air tube; 202. an air inlet; 203. an air outlet; 204. a fixing member; 301. and a protective cover.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments may be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
Furthermore, the drawings are merely schematic illustrations of embodiments of the disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus a repetitive description thereof will be omitted. Some of the block diagrams shown in the figures are functional entities and do not necessarily correspond to physically or logically separate entities.
In this exemplary embodiment, an electrode bar cleaning system for a plasma rotary electrode atomizing powder manufacturing apparatus is first provided. Referring to fig. 1, an electrode bar cleaning system for a plasma rotary electrode atomizing pulverizing apparatus may include: shafting subassembly, shafting shielding subassembly, vortex dustproof subassembly 200 and oil removal water conservancy diversion subassembly. The shafting assembly comprises a mechanical shaft 103 and a connecting rod 101, wherein the mechanical shaft 103 is connected with one end of the connecting rod 101; the shafting shielding assembly comprises a shafting sealing cover 106 and a dust collection component 109, wherein the mechanical shaft 103 is arranged in the shafting sealing cover 106, a through hole is formed in the side wall of the shafting sealing cover 106, the connecting rod 101 penetrates through the through hole, the other end of the connecting rod 101 is used for arranging an electrode bar 102, and the dust collection component 109 is communicated with the shafting sealing cover 106 through a dust collection pipeline 108 so as to suck dust and oil mist in the shafting sealing cover 106; the shafting shielding assembly is arranged in the equipment protecting cover 107; the vortex dust prevention assembly 200 comprises a fixing piece 204 and an annular air pipe 201, wherein the fixing piece 204 is fixed on the equipment protection cover 107, the annular air pipe 201 is arranged on the fixing piece 204, the connecting rod 101 penetrates through the annular air pipe 201, a plurality of air inlets 202 are formed in the outer side wall of the annular air pipe 201, and a plurality of air outlets 203 are formed in the inner side wall of the annular air pipe 201; the oil separation flow guide assembly comprises a protective cover 301, wherein the protective cover 301 is arranged on the mechanical shaft 103, and the protective cover 301 is arranged in the shafting sealing cover 106 so as to prevent dust and oil mist from overflowing from the through hole.
It can be understood that during the pulverizing process, the mechanical shaft 103 drives the electrode bar 102 to rotate at a high speed through the connecting rod 101, the mechanical shaft 103 rubs with the carbon brush to generate a large amount of carbon powder, and meanwhile, the oil mist is generated by the oil-gas lubrication system of the mechanical shaft 103 and dispersed in the air.
As shown in fig. 1, the mechanical shaft 103 and the connecting rod 101 are shielded by a shafting sealing cover 106, a dust collection pipeline 108 is connected to the top of the shafting sealing cover 106, and carbon powder and oil mist are sucked into a dust collection part 109 by the dust collection pipeline 108, so that the carbon powder and the oil mist are prevented from being dispersed in the shafting sealing cover 106 in a large amount, and meanwhile, the surfaces of the connecting rod 101 and the electrode bar 102 are prevented from being attached; the front end of the shafting sealing cover 106 is provided with a through hole with a diameter larger than that of the connecting rod 101, so that the connecting rod 101 can pass through.
A shafting shield assembly is disposed within the equipment boot 107. During the pulverizing process, the electrode bar 102 can rotate at a high speed, and the equipment protection cover 107 can prevent the occurrence of safety accidents so as to play a role in protection.
During the pulverizing process, most of the toner and oil mist are removed by the shafting shield assembly, but a small amount of toner and oil mist can still overflow through the through hole at the front end of the shafting seal cover 106. Therefore, the vortex dust-proof assembly 200 is added, as shown in fig. 2, the vortex dust-proof assembly 200 comprises a fixing piece 204 and an annular air pipe 201, the outer side wall of the annular air pipe 201 is provided with a plurality of air inlets 202, the inner side wall of the annular air pipe 201 is provided with a plurality of air outlets 203, and the distance between the air outlets 203 is the same. It is emphasized that, as shown in fig. 4, the air outlet 203 is oriented at a preset angle θ < 90 ° with respect to the axial direction of the electrode rod 102 and the connecting rod 101, for example, 15 °, 30 °, 45 °, 60 °, etc. The air flow direction of the air outlet 203 forms a vortex along the tangential direction of the electrode bar 102 and the connecting rod 101, and the vortex direction is opposite to the rotation direction of the electrode bar 102. The annular air tube 201 is mounted on a fixture 204, which may be a large nut 204. In the pulverizing process, the annular air pipe 201 is continuously ventilated, the electrode bar 102 and the connecting rod 101 penetrate through the annular air pipe 201, carbon powder and oil mist accumulated in a negative pressure area formed by high-speed rotation on the surfaces of the electrode bar 102 and the connecting rod 101 are cleaned by vortex formed by air injection of the annular air pipe 201, and the effect of cleaning the surfaces of the electrode bar 102 and the connecting rod 101 is achieved.
As shown in fig. 3, the oil separation and flow guiding component is to add a protective cover 301 at the connection end of the connection rod 101 and the mechanical shaft 103, wherein the protective cover 301 may be a spherical protective cover 301. The oil mist overflowed from the through hole on the shafting seal cap 106 is further reduced while the oil mist is prevented from being generated at the gap between the connecting rod 101 and the through hole. It should be emphasized that the boot 301 is within the shafting seal case 106, and that the size of the boot 301 is larger than the diameter of the through hole at the front end of the shafting seal case 106.
According to the electrode bar cleaning system for the plasma rotary electrode atomization powder making equipment, in the first aspect, the mechanical shaft 103 and the connecting rod 101 are shielded by the shafting sealing cover 106, and the dust collection pipeline 108 sucks carbon powder and oil mist in the shafting sealing cover 106 into the dust collection component 109, so that the carbon powder and the oil mist are prevented from being dispersed in the shafting sealing cover 106 or attached to the connecting rod 101 and the electrode bar 102. In the second aspect, the electrode bar 102 and the connecting rod 101 pass through the annular air pipe 201, and the connecting rod 101 forms a negative pressure area on the surface due to high-speed rotation, and carbon powder and oil mist accumulated in the negative pressure area are cleaned by vortex formed by air injection of the annular air pipe 201, so that the surfaces of the electrode bar 102 and the connecting rod 101 are cleaned. In the third aspect, a protective cover 301 is arranged at the connection end of the connecting rod 101 and the mechanical shaft 103, the protective cover 301 is arranged in the shafting sealing cover 106, oil mist overflowed at the gap between the connecting rod 101 and the through hole is rapidly gathered in the negative pressure region, and the protective cover 301 can block the oil mist overflowed at the gap between the connecting rod 101 and the through hole in the shafting sealing cover 106 to prevent the oil mist from overflowing; and also can prevent carbon powder blown out from the vortex dust prevention assembly 200 from being deposited at the gap between the connection rod 101 and the through hole.
Next, each part of the electrode bar cleaning system for the above-described plasma rotary electrode atomizing pulverizing apparatus in the present exemplary embodiment will be described in more detail with reference to fig. 1 to 8.
In one embodiment, as shown in fig. 2 and 4, the air outlet 203 forms a predetermined angle with the inner side wall of the annular air pipe 201, and the predetermined angle is smaller than 90 °. The preset angle is equal to the angle formed by the orientation of the air outlet 203 and the axial direction of the electrode bar 102 and the connecting rod 101, the air flow direction of the air outlet 203 forms vortex along the tangential direction of the electrode bar 102 and the connecting rod 101, and the vortex direction is opposite to the rotation direction of the electrode bar 102.
In one embodiment, the relationship between the gas flow rate at the gas outlet 203 and the gas flow rate at any point on the surface of the electrode bar 102 is:
V 2 sinθ＞V 1 （1）
wherein V is 1 The gas flow velocity, V, at any point on the surface of the electrode bar 102 2 θ is a preset angle between the gas outlet 203 and the inner side wall of the annular gas pipe 201, which is the gas flow rate of the gas outlet 203.
Specifically, V 1 Satisfies the gas bernoulli equation:
V 1 2 /2 + P 1 /ρ= P 0 /ρ （2）
wherein V is 1 For a gas flow rate at a point on the surface of the electrode bar 102 (i.e., a gas flow rate at any point on the surface of the electrode bar 102), P 1 For this point pressure, P 0 At normal atmospheric pressure, ρ is the air density.
In the pulverizing process, the electrode bar 102 is fed into the atomizing chamber, the surface gas velocity is divided into an axial velocity and a tangential velocity, and the axial velocity is negligible compared with the tangential velocity, so that the gas velocity V at a certain point on the surface of the electrode bar 102 1 The calculation method is as follows:
V 1 = 2πnr （3）
where n is the rotational speed of the electrode bar 102 and r is the radius of the electrode bar 102;
from (2), the pressure P of the negative pressure area on the surface of the electrode bar 102 during high-speed rotation can be calculated 1 From (3), the gas flow velocity V at a certain point on the surface of the electrode bar 102 can be calculated 1 If the gas flow rate of the gas outlet 203 is V 2 Then it divides tangentially to the electrode bar 102Speed V 2 sin theta, as shown in fig. 3, to destroy the negative pressure area generated on the surface of the electrode bar 102 and counteract the gas flow on the surface, the conditions need to be satisfied:
V 2 sinθ＞V 1 （1）
thereby, the gas flow velocity V of the gas outlet 203 of the annular gas pipe 201 at different rotational speeds can be determined 2 Substituting it into the Bernoulli equation of gas, the pressure P at the outlet 203 of the annular gas tube 201 can be determined 2 . Therefore, according to the set pressure P of the air outlet 203 2 Determining the angle theta between the gas outlet 203 of the annular gas pipe 201 and the electrode bar 102 or between the gas outlet 203 of the annular gas pipe 201 and the connecting rod 101, or determining the pressure value P of the gas outlet 203 of the annular gas pipe 201 according to the angle theta between the gas outlet 203 of the annular gas pipe 201 and the electrode bar 102 or between the gas outlet 203 of the annular gas pipe 201 and the connecting rod 101 2 . The pressure of the air outlet 203 of the annular air pipe 201 is generally set to 0.1-20 MPa.
In one embodiment, the air outlets 203 are uniformly arranged on the inner side wall of the annular air pipe 201, the distance between the air outlets 203 is 5-20 mm, and the diameter of the air outlet 203 is 1-5 mm.
Specifically, the air outlets 203 may be spaced apart by a distance of 5mm, 10mm or 20mm, and are not particularly limited herein. The smaller the separation distance between the air outlets 203, the denser the distribution thereof over the annular air duct 201. The diameter of the air outlet 203 may be 1mm, 2mm or 5mm, and is not particularly limited herein.
It will be appreciated that the number of air inlets 202 may be 1, 2, or 3, without limitation. The annular gas tube 201 is inflated through the gas inlet 202 so that gas flows out of the gas outlet 203.
In one embodiment, the diameter of the through hole is 1 to 10mm larger than the diameter of the connection rod 101. Specifically, the diameter of the through hole is 1 to 10mm larger than that of the connection rod 101 so that the connection rod 101 can be penetrated out of the through hole, and the connection rod 101 does not rub against the through hole when the connection rod 101 rotates.
In one embodiment, the system further comprises: motorized spindle 104; the electric spindle 104 is arranged in the shafting sealing cover 106, and the electric spindle 104 is connected with the mechanical shaft 103. Specifically, the motorized spindle 104 drives the mechanical shaft 103 to rotate, the mechanical shaft 103 drives the connecting rod 101 to rotate, and the connecting rod 101 drives the electrode bar 102 connected with the connecting rod to rotate.
In one embodiment, the system further comprises: a shafting base 105, the shafting shield assembly being disposed on the shafting base 105. Specifically, the mechanical shaft 103, the shaft system sealing cover 106 and the motorized spindle 104 are all arranged on the shaft system base 105, so that the overall stability is ensured, and therefore, the connecting rod 101 and the electrode bar 102 can be ensured not to shake during rotation, and the quality of metal powder is prevented from being influenced.
In one embodiment, the system further comprises: an air pump; the air pump is arranged in the equipment protection cover 107, and the air pump is communicated with the air inlet 202 through an air pipe. Specifically, the air pump is communicated with the annular air pipe 201 through the air inlet 202, blows air into the annular air pipe 201, and then blows air from the air outlet 203 of the annular air pipe 201 to the electrode bar 102.
It will be appreciated that the flow rate of the gas may be controlled by an air pump to adjust the flow rate of the gas at the outlet 203.
The following are specific examples.
Example 1
The shafting assembly is shielded by a shafting sealing cover 106, a dust absorption pipeline 108 is connected to the top of the shafting sealing cover 106, carbon powder and oil mist are absorbed to a dust absorption part 109 by the dust absorption pipeline 108, so that the carbon powder and the oil mist are prevented from being dispersed in a space of an equipment protection cover 107 in a large amount, and meanwhile, the surfaces of a connecting rod 101 and an electrode bar 102 are prevented from being attached; the front end of the shafting sealing cover 106 is provided with a through hole with the diameter of 55mm, and the connecting rod 101 can pass through the through hole.
The vortex dust-proof assembly 200 is an annular air pipe 201, and 16 cylindrical air outlets 203 with the diameter of 2mm are formed in the inner surface of the annular air pipe 201, and the distance between the air outlets 203 is 5mm. The air outlet 203 faces to form 45 degrees with the axial direction of the connecting rod 101, and the air flow direction of the air outlet 203 forms vortex along the tangential direction of the electrode bar 102 and the connecting rod 101, and the vortex direction is opposite to the rotation direction of the electrode bar 102. The annular air pipe 201 is arranged on the fixing piece 204, and in the pulverizing process, the annular air pipe 201 is continuously ventilated, and the air pressure is controlled at 5MPa.
The oil separation flow guide component is formed by adding a spherical protection cover 301 at the connecting end of the connecting rod 101 and the mechanical shaft 103, wherein the spherical protection cover 301 is arranged in the shafting sealing cover 106, and the maximum diameter of the spherical surface is 80mm. In the pulverizing process, the mechanical shaft 103 drives the connecting rod 101 to rotate at a high speed, a negative pressure area is formed on the surface of the connecting rod 101, overflowed oil mist at a gap between the connecting rod 101 and the through hole is rapidly gathered in the negative pressure area, the spherical protective cover 301 can block the overflowed oil mist at the gap between the connecting rod 101 and the through hole in the shafting sealing cover 106 to prevent the overflow, and on the other hand, carbon powder blown out by the oil separation flow guide assembly can be prevented from being deposited at the gap between the connecting rod 101 and the through hole.
The plasma rotary electrode atomization powder making equipment of a certain model is selected for powder making operation, the working condition of the equipment is good, the performance in all aspects meets the index, and the shafting sealing assembly, the vortex dust-proof assembly 200 and the oil separation flow guide assembly can be normally carried.
The metal powder was prepared under the conditions of unassembled bar cleaning system and assembled bar cleaning system, respectively, with the preparation material IN718. After the metal powders of 5 electrode bars 102 were prepared, the surface conditions of the connecting rod 101 were as shown in fig. 5 and 6. It can be seen that the surface cleanliness of the connecting rod 101 is significantly higher when the metal powder is prepared under the condition of assembling the electrode bar cleaning system for the plasma rotary electrode atomizing powder manufacturing equipment.
Example 2
The shafting assembly is shielded by a shafting sealing cover 106, a dust absorption pipeline 108 is connected to the top of the shafting sealing cover 106, carbon powder and oil mist are absorbed to a dust absorption part 109 by the dust absorption pipeline 108, the carbon powder and the oil mist are prevented from being dispersed in a space of an equipment protection cover 107 in a large amount, and the carbon powder and the oil mist are adhered to the surfaces of a connecting rod 101 and an electrode bar 102; the front end of the shafting sealing cover 106 is provided with a through hole with the diameter of 55mm, and the connecting rod 101 can pass through the through hole.
The vortex dust-proof assembly 200 is an annular air pipe 201, 10 cylindrical air outlets 203 with the diameter of 4mm are formed in the inner surface of the annular air pipe 201, and the distance between the air outlets 203 is 10mm. The air outlet 203 faces to form 60 degrees with the axial direction of the connecting rod 101, and the air flow direction of the air outlet 203 forms vortex along the tangential direction of the electrode bar 102 and the connecting rod 101, and the vortex direction is opposite to the rotation direction of the electrode bar 102. The annular air pipe 201 is arranged on the fixing piece 204, and in the pulverizing process, the annular air pipe 201 is continuously ventilated, and the air pressure is controlled to be 10MPa.
The oil separation flow guide component is formed by adding a spherical protection cover 301 at the connecting end of the connecting rod 101 and the mechanical shaft 103, wherein the spherical protection cover 301 is arranged in the shafting sealing cover 106, and the maximum diameter of the spherical surface is 80mm. In the pulverizing process, the mechanical shaft 103 drives the connecting rod 101 to rotate at a high speed, a negative pressure area is formed on the surface of the connecting rod 101, overflowed oil mist at a gap between the connecting rod 101 and the through hole is rapidly gathered in the negative pressure area, the spherical protective cover 301 can block the overflowed oil mist at the gap between the connecting rod 101 and the through hole in the shafting sealing cover 106 to prevent the overflow, and on the other hand, carbon powder blown out by the oil separation flow guide assembly can be prevented from being deposited at the gap between the connecting rod 101 and the through hole.
The plasma rotary electrode atomization powder making equipment of a certain model is selected for powder making operation, the working condition of the equipment is good, the performances in all aspects meet the indexes, and the shafting sealing assembly, the vortex dust-proof assembly 200 and the oil separation flow guide assembly can be normally carried.
The metal powder was prepared under the conditions of unassembled bar cleaning system and assembled bar cleaning system, respectively, with the preparation material IN718. After the metal powders of 5 electrode bars 102 were prepared, the surface conditions of the connecting rod 101 were as shown in fig. 7 and 8. It can be seen that the surface cleanliness of the connecting rod 101 is significantly higher when the metal powder is prepared under the condition of assembling the electrode bar cleaning system for the plasma rotary electrode atomizing powder manufacturing equipment.
It is to be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like in the above description are directional or positional relationships as indicated based on the drawings, merely to facilitate description of the embodiments of the disclosure and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and thus should not be construed as limiting the embodiments of the disclosure.
In the presently disclosed embodiments, the terms "mounted," "connected," "secured," and the like are to be construed broadly, as well as being either fixedly connected, detachably connected, or integrally formed, unless otherwise specifically indicated and defined; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the terms in this disclosure will be understood by those of ordinary skill in the art as the case may be.
In the presently disclosed embodiments, unless expressly stated and limited otherwise, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, one skilled in the art can combine and combine the different embodiments or examples described in this specification.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any adaptations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains.
Claims (9)
1. An electrode bar cleaning system for a plasma rotary electrode atomizing powder process device, characterized in that the electrode bar cleaning system comprises:
the shafting assembly comprises a mechanical shaft and a connecting rod, and the mechanical shaft is connected with one end of the connecting rod;
the shafting shielding assembly comprises a shafting sealing cover and a dust collection component, the mechanical shaft is arranged in the shafting sealing cover, a through hole is formed in the side wall of the shafting sealing cover, the connecting rod penetrates through the through hole, the other end of the connecting rod is used for arranging an electrode bar stock, and the dust collection component is communicated with the shafting sealing cover through a dust collection pipeline so as to suck dust and oil mist in the shafting sealing cover;
the shafting shielding assembly is arranged in the equipment protecting cover;
the vortex dustproof assembly comprises a fixing piece and an annular air pipe, the fixing piece is fixed on the equipment protection cover, the annular air pipe is arranged on the fixing piece, the connecting rod penetrates through the annular air pipe, a plurality of air inlets are formed in the outer side wall of the annular air pipe, and a plurality of air outlets are formed in the inner side wall of the annular air pipe;
the oil removal guide assembly comprises a protective cover, wherein the protective cover is arranged on the mechanical shaft, and the protective cover is arranged in the shaft system sealing cover so as to prevent dust and oil mist from overflowing from the through hole.
2. The electrode bar cleaning system for a plasma rotary electrode atomizing powder process apparatus as set forth in claim 1, wherein the air outlet is at a predetermined angle with respect to an inner side wall of the annular air tube, the predetermined angle being less than 90 °.
3. The electrode bar cleaning system for the plasma rotary electrode atomization powder process equipment according to claim 2, wherein the relation between the gas flow rate of the gas outlet and the gas flow rate at any point on the surface of the electrode bar is:
V 2 sinθ＞V 1 （1）
wherein V is 1 The flow velocity of the gas at any point on the surface of the electrode bar is V 2 And θ is a preset angle between the gas outlet and the inner side wall of the annular gas pipe.
4. The electrode bar cleaning system for the plasma rotary electrode atomization powder process equipment according to claim 1, wherein the air outlets are uniformly distributed on the inner side wall of the annular air pipe, and the distance between the air outlets is 5-20 mm.
5. The electrode bar cleaning system for the plasma rotary electrode atomizing powder manufacturing equipment according to claim 1, wherein the diameter of the air outlet is 1-5 mm.
6. The electrode bar cleaning system for a plasma rotary electrode atomizing powder process apparatus as set forth in claim 1, wherein the diameter of the through hole is 1 to 10mm larger than the diameter of the connecting rod.
7. The electrode bar cleaning system for a plasma rotary electrode atomizing powder process apparatus as set forth in claim 1, further comprising an electric spindle disposed within the shafting seal cover and connected to the mechanical shaft.
8. The electrode bar cleaning system for a plasma rotary electrode atomizing powder process apparatus as set forth in claim 1, further comprising a shafting base, wherein the shafting shield assembly is disposed on the shafting base; the shafting shielding assembly and the vortex dust prevention assembly are both arranged in the equipment protection cover.
9. The electrode bar cleaning system for a plasma rotary electrode atomizing powder process apparatus as set forth in claim 1, further comprising an air pump disposed in the apparatus protecting cover, the air pump being in communication with the air inlet via an air pipe.
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1353517A (en) * | 1970-07-17 | 1974-05-22 | Whittaker Corp | Production of pure spherical powders |
| JP2003061308A (en) * | 2001-08-10 | 2003-02-28 | Honda Motor Co Ltd | Draft cooling device of dc motor |
| KR200333156Y1 (en) * | 2003-08-05 | 2003-11-12 | 주식회사 포스코 | Injection device for dc motor |
| CN208341263U (en) * | 2018-04-02 | 2019-01-08 | 浙江晋椿五金配件有限公司 | Bar annular cleaner |
| CN209049829U (en) * | 2018-09-30 | 2019-07-02 | 浙江绅仕镭集团有限公司 | White oil is atomized cleaning systems |
| CN112008089A (en) * | 2020-10-14 | 2020-12-01 | 西安赛隆金属材料有限责任公司 | Mechanical shaft, plasma rotating electrode powder making device and method |
| CN214314849U (en) * | 2021-03-31 | 2021-09-28 | 重庆华能水电设备制造有限公司 | Generator carbon powder absorbing device |
| CN214392347U (en) * | 2020-12-08 | 2021-10-15 | 四川容克斯科技有限公司 | Metal powder recovery device of rotary electrode centrifugal atomization system |
| CN216880803U (en) * | 2022-03-16 | 2022-07-05 | 福建南平沃森机电自动化有限公司 | Carbon powder collecting device for motor carbon brush |
| CN218071174U (en) * | 2022-03-17 | 2022-12-16 | 江阴兴澄特种钢铁有限公司 | Synchronous machine carbocycle self-cleaning heat sink |
| CN115854030A (en) * | 2023-02-16 | 2023-03-28 | 西安赛隆增材技术股份有限公司 | Double-sealing assembly, plasma rotating electrode atomization powder making device and powder making method |
-
2023
- 2023-10-13 CN CN202311323547.0A patent/CN117047117B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1353517A (en) * | 1970-07-17 | 1974-05-22 | Whittaker Corp | Production of pure spherical powders |
| JP2003061308A (en) * | 2001-08-10 | 2003-02-28 | Honda Motor Co Ltd | Draft cooling device of dc motor |
| KR200333156Y1 (en) * | 2003-08-05 | 2003-11-12 | 주식회사 포스코 | Injection device for dc motor |
| CN208341263U (en) * | 2018-04-02 | 2019-01-08 | 浙江晋椿五金配件有限公司 | Bar annular cleaner |
| CN209049829U (en) * | 2018-09-30 | 2019-07-02 | 浙江绅仕镭集团有限公司 | White oil is atomized cleaning systems |
| CN112008089A (en) * | 2020-10-14 | 2020-12-01 | 西安赛隆金属材料有限责任公司 | Mechanical shaft, plasma rotating electrode powder making device and method |
| CN214392347U (en) * | 2020-12-08 | 2021-10-15 | 四川容克斯科技有限公司 | Metal powder recovery device of rotary electrode centrifugal atomization system |
| CN214314849U (en) * | 2021-03-31 | 2021-09-28 | 重庆华能水电设备制造有限公司 | Generator carbon powder absorbing device |
| CN216880803U (en) * | 2022-03-16 | 2022-07-05 | 福建南平沃森机电自动化有限公司 | Carbon powder collecting device for motor carbon brush |
| CN218071174U (en) * | 2022-03-17 | 2022-12-16 | 江阴兴澄特种钢铁有限公司 | Synchronous machine carbocycle self-cleaning heat sink |
| CN115854030A (en) * | 2023-02-16 | 2023-03-28 | 西安赛隆增材技术股份有限公司 | Double-sealing assembly, plasma rotating electrode atomization powder making device and powder making method |
Non-Patent Citations (2)
| Title |
|---|
| 水电厂机组发电机转子绝缘故障分析及处理对策;刘勇;;科技风(19);第86-87页 * |
| 浅析黑河塘水电站发电机励磁风罩的改造;周振波;;四川水力发电(S1);第16-18页 * |
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