CN204621167U - A kind of rice-milling roller air vent drill bit and rig - Google Patents
A kind of rice-milling roller air vent drill bit and rig Download PDFInfo
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- CN204621167U CN204621167U CN201520315665.1U CN201520315665U CN204621167U CN 204621167 U CN204621167 U CN 204621167U CN 201520315665 U CN201520315665 U CN 201520315665U CN 204621167 U CN204621167 U CN 204621167U
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Abstract
The utility model relates to process tool technical field, provide a kind of rice-milling roller air vent drill bit and rig, wherein drill bit comprises: drill body (10), be provided with two blade fixed bits (121) at the end of described drill body (10), described two blade fixed bits (121) are parallel relatively and setting of staggering; At least two pieces of blades (20), described two pieces of blades (20) are arranged on described blade fixed bit (121) respectively, and blade (20) is fixed on drill body (10) by compact heap (30); Spacer (40) is provided with between described blade (20).Rice-milling roller air vent drill bit of the present utility model is wear-resisting, long service life, and production efficiency is high, and air guide water guide is convenient, and chip removal is convenient, and blade assembly precision is high.
Description
[technical field]
The utility model relates to process tool technical field, particularly relates to a kind of rice-milling roller air vent drill bit and rig.
[background technology]
Sand roller is the vitals on rice mill, is to add epoxy resin compacting by carborundum sand grains to form.Husk rice is exactly make the grain of rice and whitening chamber component by the sand roller rotated and produce between the grain of rice and the grain of rice mutually to collide, rub and the motion such as rolling, acting on by grain of rice skin portion or all remove from waiting by grinding to cut and rub to wipe, making it to become the process of the rice meeting predetermined quality requirement.
In rice milling process, due to effects such as collision and rollings, while partly or entirely removing grain of rice cortex, also create certain heat.Part heat is dispersed in air by whitening chamber component etc., and another part heat scatters and disappears along with the evaporation of grain of rice moisture, and some heat is passed to grain of rice inside, makes rice temperature increase.If these heats can not distribute in time, meter Wen will be impelled sharply to rise cause a large amount of evaporations of rice moisture, result not only causes rice mill load to increase, but also causes grain of rice resistance to compression, the reduction of shear strength and the increase of broken rice rate.Therefore, when manufacturing rice-milling roller, several air vents need be got out with drill bit on sand roller.In rice milling process, air at room temperature by the centre bore at the main shaft two ends of High Rotation Speed, enters rice-milling roller inner chamber usually, and then sprays in whitening chamber through the radial air openings of rice-milling roller, thus forms the air whirl rotated around rice-milling roller.This air whirl impels the grain of rice to produce the motion such as stronger collision and rolling, reaches the even pearling grain of rice, cools and forces chaff powder to be discharged rapidly the effects such as machine is outer, reach the object improving Mill technique effect.
The processing of air vent is a difficult problem of puzzlement Sha Gun manufacturing enterprise, and processing mode in the past gets out air vent with high speed steel twist drill along sand roller radial direction.And the main composition material silicon carbide of sand roller, be a kind of high performance removing material, very easily wear and tear when high speed steel twist is drilled in drilling sand roller.The head of drill bit can attenuate and come to a point, and sharp drilling sword is worn away originally, until drill bit loses boring capacity, must change.According to statistics, the high speed steel twist drill of a diameter 22mm can only process 100 holes.
In existing cutting tool, if drill bit adopts two pieces and above blade, and do not adopt quarantine measures between blade, then to cause between blade wearing and tearing mutually, the inconvenience of air guide water guide, chip removal is inconvenient, assembly precision is lower problems such as (blade lack positioning element after entering groove).
In addition, in the blade fixed form of existing cutting tool, general is be threaded connection device to assemble from compact heap end toward cutter body end by the assembling mode of the compact heap of blade pressing on cutter body, this assembling mode needs the head of retaining thread jockey due to compact heap end, therefore need the cross section of compact heap larger, cause compact heap volume larger, in addition, due to assembly space restriction, the cross section of compact heap also can not be done very large, therefore the head of screw connection only has very little portion compresses on compact heap, the insufficient strength of thread locking.
[utility model content]
The technical problems to be solved in the utility model is to provide that a kind of drill bit is not easy to wear, isolate good rice-milling roller air vent drill bit and rig between blade.
The utility model adopts following technical scheme:
A kind of rice-milling roller air vent drill bit, comprising:
Drill body (10), is provided with two blade fixed bits (121) at the end of described drill body (10), and described two blade fixed bits (121) are parallel relatively and setting of staggering;
At least two pieces of blades (20), described two pieces of blades (20) are arranged on described blade fixed bit (121) respectively, and blade (20) is fixed on drill body (10) by compact heap (30);
Spacer (40) is provided with between described blade (20).
Further, described blade (20) comprises fixed part (21) and blade portion (22), and described blade portion (22) is dimond synneusis blade.
Further, described drill body (10) comprises pedestal (11) and is positioned at two columns (12) of described pedestal (11) end, described two columns (12) are staggered in diagonal angle setting, and described two blade fixed bits (121) are arranged on two columns (12) respectively.
Further, described blade fixed part (21) is provided with the location division (211) of protrusion, described column (12) is provided with corresponding locating slot (122), and location division (211) embed in locating slot (122) and realize blade (20) location.
Further, described spacer (40) is copper sheet, one end of described copper sheet is positioned between two blades (20), the through hole (15) below the centre that the other end of copper sheet is positioned at two columns (12), pedestal (11) offered, clamps copper sheet after blade (20) assembling.
Further, described compact heap (30) offers screwed hole (31), described drill body (10) offers bellmouth (13), and threaded connector (50) is locked from drill body (10) end to compact heap (30) end.
Further, the compression end of described compact heap (30) has two presser feets (32), side presser feet (32) is pressed on blade (20), and opposite side presser feet (32) is pressed on drill body (10).
Further, the spot size that screwed hole (31) is offered at described compact heap (30) middle part is large, progressively reduces from middle part towards both sides size.
Further, the position extended between described column (12) and toward pedestal (11) direction is chip area (14), and the end entirety of described each blade (20) and column (12) is in skewed toward side from centre.
The utility model additionally provides a kind of rig, and described equipment, for processing rice-milling roller air vent, described rig is provided with the rice-milling roller air vent drill bit described in the claims.
Compared with existing knife changable cutting tool, the beneficial effects of the utility model are: the utility model is by design isolated sheet between blade, can not be cracked because of extruding between blade, blade wearability is good, and the water guide of energy air guide simultaneously, is convenient to heat radiation, chip removal also facilitates, due to the setting of spacer, blade using spacer as positioning element, can also improve the assembly precision of blade after entering groove.
[accompanying drawing explanation]
Fig. 1 is the structural representation of the utility model embodiment rice-milling roller air vent drill bit;
Fig. 2 is the exploded view of the utility model embodiment rice-milling roller air vent drill bit;
Fig. 3 is the structural representation of blade;
Fig. 4 is the profile of blade;
Fig. 5 is the structural representation of compact heap;
Fig. 6 is the partial structurtes schematic diagram that compact heap is fixed blade;
Figure 7 shows that the sectional view of bellmouth.
Reference numeral:
Drill body 10, pedestal 11, column 12, blade fixed bit 121, locating slot 122, bellmouth 13, chip area 14, through hole 15, blade 20, fixed part 21, location division 211, blade portion 22, compact heap 30, screwed hole 31, presser feet 32, spacer 40, threaded connector 50.
[detailed description of the invention]
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
In addition, if below in described each embodiment of the utility model involved technical characteristic do not form conflict each other and just can mutually combine.
As shown in Figure 1, Figure 2 with shown in Fig. 6, the utility model embodiment provides a kind of rice-milling roller air vent drill bit, this drill bit comprises drill body 10 and at least two pieces of blades 20, is provided with two blade fixed bits, 121, two blade fixed bits 121 parallel relatively and setting of staggering at the end of drill body 10; Two pieces of blades 20 are arranged on blade fixed bit 121 respectively, and blade 20 is fixed on drill body 10 by compact heap 30; Two columns, 12, two columns 12 that drill body 10 comprises pedestal 11 and is positioned at pedestal 11 end stagger in diagonal angle setting, and two blade fixed bits 121 are arranged on two columns 12 respectively; Be provided with spacer 40 between blade 20, spacer 40 is copper sheet, and one end of copper sheet is between two blades 20, and the through hole 15 below the centre that the other end of copper sheet is positioned at two columns 12, pedestal 11 offered, clamps copper sheet after blade 20 assembles.Owing to having spacer assembly between blade 20, making can not be cracked because of extruding between blade 20, blade wearability is good, the water guide of energy air guide simultaneously, be convenient to heat radiation, chip removal also facilitates, due to the setting of copper sheet, blade 20 using copper sheet as positioning element, can also improve the assembly precision of blade 20 after entering groove.
It should be noted that, through hole 15 can play water guide air guide, is the effect of blade heat radiation.
As shown in Figure 3 and Figure 4, blade 20 comprises fixed part 21 and blade portion 22, and blade portion 22 is dimond synneusis blade.Wherein, blade portion 22 is diamond layer, fixed part 21 is hard alloy layer, combine closely to make diamond layer and hard alloy layer, be not separated, when manufacturing this blade composite sheet, zigzag or corrugated groove can be processed on carbide alloy, making between diamond layer and hard alloy layer, to have sawtooth or wavy texture.Dimond synneusis blade is used to substitute traditional drill bit drilling sword, the problem that bit wear is too fast can be solved, because diamond polycrystalline drill bit wearability is good, self-sharpening is strong, under the state that cooling is good, a diamond polycrystalline drill bit can process 4000 air vents, drastically increases the service life of drill bit, save the time of a lot of more bit change simultaneously, improve production efficiency.
The quantity of blade 20 is arranged, and with two pieces for optimal design, not only saves cost but also can meet process requirements, and the present embodiment is two pieces of blades 20.Can certainly be three pieces or more blocks, the utility model limit.The layout of blade 20 is preferably symmetrical according to the central shaft of drill body 10, makes the uniform force of blade 20 during bit, processes more well-balanced, and the degree of wear of blade 20 is also close to synchronous simultaneously.
As shown in figures 1 to 6, blade fixed part 21 is provided with the location division 211 of protrusion, and column 12 is provided with corresponding locating slot 122, and location division 211 embeds in locating slot 122 and realizes blade 20 and locate.By the design of location division 211 and locating slot 122, make the fixing better of blade 20, not easily offset.
As shown in Fig. 1, Fig. 6 and Fig. 7, compact heap 30 offers screwed hole 31, drill body 10 offers bellmouth 13, threaded connector 50 is locked from drill body 10 end to compact heap 30 end.Particularly, please refer to shown in Fig. 5, the compression end of compact heap 30 has two presser feets 32, and side presser feet 32 is pressed on blade 20, and opposite side presser feet 32 is pressed on drill body 10.The spot size offering screwed hole 31 in the middle part of compact heap 30 is large, progressively reduces from middle part towards both sides size.Be threaded connection compared with mode that device to carry out from compact heap end toward drill body end assembling with existing, in the assembling mode of the present embodiment, compact heap 30 end does not need the head of retaining thread connector 50, what therefore the cross section of compact heap 30 can be designed is larger, compact heap 30 volume can be controlled in less scope, meet the demand of less assembly space, and the head of threaded connector 50 is pressed in the bellmouth 13 of drill body 10, obtain enough supports, the intensity of thread locking obtains guarantee.
In addition, as shown in figures 1 to 6, the position extended between column 12 and toward pedestal 11 direction is chip area 14, and the end of each blade 20 and column 12 entirety in from middle skewed toward side, is convenient to draining of chip in process.
The utility model embodiment still provides a kind of rig, and this equipment, for processing rice-milling roller air vent, rig is provided with rice-milling roller air vent drill bit as above.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (10)
1. a rice-milling roller air vent drill bit, is characterized in that, comprising:
Drill body (10), is provided with two blade fixed bits (121) at the end of described drill body (10), and described two blade fixed bits (121) are parallel relatively and setting of staggering;
At least two pieces of blades (20), described two pieces of blades (20) are arranged on described blade fixed bit (121) respectively, and blade (20) is fixed on drill body (10) by compact heap (30);
Spacer (40) is provided with between described blade (20).
2. rice-milling roller air vent drill bit as claimed in claim 1, it is characterized in that, described blade (20) comprises fixed part (21) and blade portion (22), and described blade portion (22) is dimond synneusis blade.
3. rice-milling roller air vent drill bit as claimed in claim 2, it is characterized in that, described drill body (10) comprises pedestal (11) and is positioned at two columns (12) of described pedestal (11) end, described two columns (12) are staggered in diagonal angle setting, and described two blade fixed bits (121) are arranged on two columns (12) respectively.
4. rice-milling roller air vent drill bit as claimed in claim 3, it is characterized in that, described blade fixed part (21) is provided with the location division (211) of protrusion, described column (12) is provided with corresponding locating slot (122), and location division (211) embed in locating slot (122) and realize blade (20) location.
5. rice-milling roller air vent drill bit as claimed in claim 3, it is characterized in that, described spacer (40) is copper sheet, one end of described copper sheet is positioned between two blades (20), the through hole (15) below the centre that the other end of copper sheet is positioned at two columns (12), pedestal (11) offered, clamps copper sheet after blade (20) assembling.
6. rice-milling roller air vent drill bit as claimed in claim 1, it is characterized in that, described compact heap (30) offers screwed hole (31), described drill body (10) offers bellmouth (13), and threaded connector (50) is locked from drill body (10) end to compact heap (30) end.
7. the rice-milling roller air vent drill bit as described in any one of claim 1-6, it is characterized in that, the compression end of described compact heap (30) has two presser feets (32), side presser feet (32) is pressed on blade (20), and opposite side presser feet (32) is pressed on drill body (10).
8. the rice-milling roller air vent drill bit as described in any one of claim 1-6, is characterized in that, the spot size that screwed hole (31) is offered at described compact heap (30) middle part is large, progressively reduces from middle part towards both sides size.
9. rice-milling roller air vent drill bit as claimed in claim 3, it is characterized in that, the position extended between described column (12) and toward pedestal (11) direction is chip area (14), and the end entirety of described each blade (20) and column (12) is in skewed toward side from centre.
10. a rig, is characterized in that, described equipment, for processing rice-milling roller air vent, described rig is provided with the rice-milling roller air vent drill bit described in any one of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520315665.1U CN204621167U (en) | 2015-05-15 | 2015-05-15 | A kind of rice-milling roller air vent drill bit and rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520315665.1U CN204621167U (en) | 2015-05-15 | 2015-05-15 | A kind of rice-milling roller air vent drill bit and rig |
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| Publication Number | Publication Date |
|---|---|
| CN204621167U true CN204621167U (en) | 2015-09-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520315665.1U Active CN204621167U (en) | 2015-05-15 | 2015-05-15 | A kind of rice-milling roller air vent drill bit and rig |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104816013A (en) * | 2015-05-15 | 2015-08-05 | 杨帆 | Rice milling emery roll ventilation hole drill bit and drilling equipment |
| CN113600263A (en) * | 2020-05-04 | 2021-11-05 | 森王技术有限公司 | Cutting member of cutting rice mill inserted with ceramic cutting teeth |
-
2015
- 2015-05-15 CN CN201520315665.1U patent/CN204621167U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104816013A (en) * | 2015-05-15 | 2015-08-05 | 杨帆 | Rice milling emery roll ventilation hole drill bit and drilling equipment |
| CN113600263A (en) * | 2020-05-04 | 2021-11-05 | 森王技术有限公司 | Cutting member of cutting rice mill inserted with ceramic cutting teeth |
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| GR01 | Patent grant |