CN205394123U - Crouch and add front -end of spindle protection machanism - Google Patents

Crouch and add front -end of spindle protection machanism Download PDF

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Publication number
CN205394123U
CN205394123U CN201620155807.7U CN201620155807U CN205394123U CN 205394123 U CN205394123 U CN 205394123U CN 201620155807 U CN201620155807 U CN 201620155807U CN 205394123 U CN205394123 U CN 205394123U
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CN
China
Prior art keywords
water supply
main shaft
spindle
groove
gas
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn - After Issue
Application number
CN201620155807.7U
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Chinese (zh)
Inventor
张学军
赵岩
盛孝勇
黄文东
叶斌炳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ningbo Haitian Precision Machinery Co Ltd
Original Assignee
Ningbo Haitian Precision Machinery Co Ltd
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Filing date
Publication date
Application filed by Ningbo Haitian Precision Machinery Co Ltd filed Critical Ningbo Haitian Precision Machinery Co Ltd
Priority to CN201620155807.7U priority Critical patent/CN205394123U/en
Application granted granted Critical
Publication of CN205394123U publication Critical patent/CN205394123U/en
Withdrawn - After Issue legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a crouch and add front -end of spindle protection machanism, the design improves to traditional air curtain, prevents the iron fillings structure to front -end of spindle waterproof and carries out meticulous design, blows out from the front -end of spindle what the protection in -process can lose one's temper air as much as possible sealed, increases the atmoseal effect, makes the air that blows to the rear -end of spindle few as far as possible simultaneously, reduces the damage of atmoseal air to main shaft bearing, installation back, at the machine tool machining in -process, low pressure gas is in the gas hole gets into annular gas tank, and in the reentrant annular gap, angle direction through an annular gap finally blows out in the 2nd annular gap, and the gas that blows out forms annular air curtain when the main shaft is rotatory, can effectively prevent cooling water and iron fillings entering main shaft, if there is a small amount of gaseous the 3rd annular gap on warp flow direction rear -end of spindle, keep off the gas face and can prevent effectively that the air from continuing to get into outer labyrinth ring and interior labyrinth ring and main shaft bearing department again, play better protecting effect to the reduction is to main shaft bearing's damage.

Description

A kind of crouching adds front-end of spindle protection mechanism
Technical field
This utility model relates to lathe guard technology field, and specifically a kind of crouching adds front-end of spindle protection mechanism.
Background technology
Front-end of spindle waterproof construction designs, and is related to the integrity problem of machine tool chief axis, the main shaft that waterproof is bad, and internal bearings can be intake into iron filings, need to often keep in repair, and reduces bearing service life.The actually used operating mode of machine tool chief axis is complicated, and working environment is relatively more severe, and being always up being in has the occasion that cooling water and iron filings splash everywhere to work long hours, and therefore the design of front-end of spindle protection mechanism is extremely important.
Existing front-end of spindle protection Design is generally adopted common curtain design, during machine tooling, the air of air curtain also can blow to rear-end of spindle while blowing to front-end of spindle, reduce the effect of front-end of spindle hermetic seal, the low-pressure air simultaneously blowing to rear-end of spindle can enter bearing, bearing grease can be blown open by time length, and the aqueous vapor blowing to the filtered of rear-end of spindle also can make bearing heating even damage, cause that the repair rate of machine tool chief axis is higher.
Summary of the invention
Technical problem to be solved in the utility model is: for the deficiencies in the prior art, it is provided that a kind of waterproof and effective sleeping of anti-iron filings add front-end of spindle protection mechanism.
nullThe technical scheme that the above-mentioned technical problem of this utility model solution is taked is: a kind of crouching adds front-end of spindle protection mechanism,Including the outer press cover and the inner end cap that are arranged on front-end of spindle,The rear side of described outer press cover is provided with outer labyrinth ring and interior labyrinth ring,Main shaft bearing is arranged on the rear side of described outer labyrinth ring and interior labyrinth ring,The front end of described outer press cover is provided with the installation cavity of indent,Described inner end cap is arranged in described installation cavity,Described outer press cover offers the gas hole being connected with extraneous source of the gas,Described extraneous source of the gas is for passing into low-pressure gas to described gas hole,Described inner end cap offers the annular gas tank being connected with described gas hole,The inner side of described inner end cap is provided with the first inclined-plane of oblique front-end of spindle,Described outer press cover be provided with second inclined-plane relative with the first described inclined-plane,It is formed with first annular gap between the first described inclined-plane and the second described inclined-plane,Described first annular gap is connected with described annular gas tank,The second annular gap being connected with described first annular gap it is provided with between described inner end cap and main shaft,The 3rd annular gap being connected with the second described annular gap it is provided with between described outer press cover and main shaft,Main shaft is provided with gear gas face radially at the rear side of the 3rd described annular gap.
Crouch after adding the installation of front-end of spindle protection mechanism disclosed in this utility model, in machine tooling process, low-pressure gas enters in annular gas tank through gas hole, enter back in first annular gap, led by the angle in first annular gap, finally blow out in the second annular gap, and the gas of blowout forms annular air curtain when main shaft rotates, it is possible to effectively prevent cooling water and iron filings entrance main shaft.If there being a small amount of gas to flow to rear-end of spindle through the 3rd annular gap, gear gas face can effectively prevent air to be further continued for entering outer labyrinth ring and interior labyrinth ring and main shaft bearing place, plays good protection effect, thus reducing the damage to main shaft bearing.This utility model is disclosed sleeping adds front-end of spindle protection mechanism, it is possible to make that the air of hermetic seal is as much as possible to be blown out from front-end of spindle, increases sealing gland effect, makes the air blowing to rear-end of spindle the least possible simultaneously, reduces the damage to main shaft bearing of the sealing gland air.
Further, the air pressure of described low-pressure gas is 0.2~0.3MPa.
Further, front-end of spindle is provided with the first of some annulars and cuts off the water supply groove, and the some described first groove of cutting off the water supply is positioned at the front side of described inner end cap, the cross section of groove of cutting off the water supply from single described first, this cross section include before and after the hypotenuse that is connected and straight flange.First groove of cutting off the water supply can effectively prevent the cooling water of front-end of spindle from flowing in the second annular gap;In addition, owing to the first cross section cutting off the water supply groove includes hypotenuse and the straight flange that front and back are connected, namely first groove is cut off the water supply originally as right angled triangle groove structure, therefore the cooling water axially flowed along main shaft enters first and cuts off the water supply and will radially be thrown away after groove, reduce the water yield entering the cooling water within main shaft, thus playing better waterproof effect.
Further, some the first described rear sides cutting off the water supply groove are provided with the second of some annulars and cut off the water supply groove, some described second groove of cutting off the water supply is positioned at the rear side of described inner end cap, cut off the water supply from single described second the cross section of groove, this cross section includes hypotenuse and the straight flange that front and back are connected, the first row tank of annular it is provided with between inner side and the described main shaft of described outer press cover, described first row tank is just being cut off the water supply to some described second the periphery of groove, described outer press cover offers first row water hole, described first row water hole is connected with described first row tank.First cut off the water supply groove waterproof effect basis on, the second groove of cutting off the water supply can make a small amount of first groove of cutting off the water supply of breaking through protect and enter the cooling water of main shaft and be thrown in first row tank, is gone out by the cooling water drainage of collection in first row tank by first row water hole simultaneously.
Further, some the second described rear sides cutting off the water supply groove are provided with the 3rd of some annulars and cut off the water supply groove, cut off the water supply from the single described 3rd the cross section of groove, this cross section includes hypotenuse and the straight flange that front and back are connected, the second row tank of annular it is provided with between inner side and the described main shaft of described outer press cover, described second row tank is just being cut off the water supply to the some described 3rd the periphery of groove, offering second row water hole on described outer press cover, described second row water hole is connected with described second row tank.First cut off the water supply groove and second cut off the water supply groove double protection basis on, 3rd groove of cutting off the water supply is conducive to making breakthrough first the cut off the water supply minute quantity cooling water of groove protection of groove and second of cutting off the water supply be thrown in second row tank and discharge through second row water hole, play the effect of multiple-protection, make the sleeping waterproof adding front-end of spindle and anti-iron filings more thoroughly, effectively, the sleeping reliability that add main shaft is substantially improved.
Further, the medial surface of described outer press cover includes First terrace and the second step face that front and back are arranged, described first row tank is arranged on described First terrace, described second row tank is arranged on described second step face, described outer press cover in the endoporus aperture at described second step face place more than the endoporus aperture of the step surface at the close described outer press cover place of described outer labyrinth ring so that cooling water can be back to better in second row tank and be discharged to outside main shaft through second row water hole.
Compared with prior art, the utility model has the advantage of: the sleeping of this utility model offer adds front-end of spindle protection mechanism, traditional curtain design is improved, the anti-iron filings structure of waterproof of front-end of spindle is carried out Fine design, protection process can make the air of hermetic seal is as much as possible to be blown out from front-end of spindle, increase sealing gland effect, make the air blowing to rear-end of spindle the least possible simultaneously, reduce the damage to main shaft bearing of the sealing gland air;After installation, in machine tooling process, low-pressure gas enters in annular gas tank through gas hole, enter back in first annular gap, led by the angle in first annular gap, finally blow out in the second annular gap, and the gas of blowout forms annular air curtain when main shaft rotates, it is possible to effectively prevent cooling water and iron filings entrance main shaft;If there being a small amount of gas to flow to rear-end of spindle through the 3rd annular gap, gear gas face can effectively prevent air to be further continued for entering outer labyrinth ring and interior labyrinth ring and main shaft bearing place, plays good protection effect, thus reducing the damage to main shaft bearing.
Accompanying drawing explanation
Fig. 1 be embodiment front end protection mechanism sleeping add main shaft is installed after design sketch;
Fig. 2 is A place enlarged drawing in Fig. 1;
Fig. 3 is B place enlarged drawing in Fig. 1.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, this utility model is described in further detail.
nullThe sleeping of embodiment adds front-end of spindle protection mechanism,As shown in the figure,Including the outer press cover 1 and the inner end cap 2 that are arranged on main shaft 3 front end,The rear side of outer press cover 1 is provided with outer labyrinth ring 51 and interior labyrinth ring 52,Main shaft bearing 53 is arranged on the rear side of outer labyrinth ring 51 and interior labyrinth ring 52,The front end of outer press cover 1 is provided with the installation cavity 11 of indent,Inner end cap 2 is arranged in installation cavity 11,Outer press cover 1 offers the gas hole 12 being connected with extraneous source of the gas (not shown),Extraneous source of the gas is for passing into, to gas hole 12, the low-pressure gas that air pressure is 0.2~0.3MPa,Inner end cap 2 offers the annular gas tank 21 being connected with gas hole 12,The inner side of inner end cap 2 is provided with the first inclined-plane 22 of oblique main shaft 3 front end,Outer press cover 1 be provided with second inclined-plane 13 relative with the first inclined-plane 22,It is formed with first annular gap 41 between the first inclined-plane 22 and the second inclined-plane 13,First annular gap 41 is connected with annular gas tank 21,The second annular gap 42 being connected with first annular gap 41 it is provided with between inner end cap 2 with main shaft 3,The 3rd annular gap 43 being connected with the second annular gap 42 it is provided with between outer press cover 1 with main shaft 3,Main shaft 3 is provided with gear gas face 34 radially at the rear side of the 3rd annular gap 43.
Main shaft 3 front end is provided with annular first and cuts off the water supply groove 31, first groove 31 of cutting off the water supply is positioned at the front side of inner end cap 2, cut off the water supply from first the cross section of groove 31, this cross section includes hypotenuse 311 and the straight flange 312 that front and back are connected, as it is shown on figure 3, arrow show cooling water by first flow direction cutting off the water supply groove 31 in Fig. 3;First rear side cutting off the water supply groove 31 is provided with two annular second and cuts off the water supply groove 32, two second grooves 32 of cutting off the water supply are positioned at the rear side of inner end cap 2, cut off the water supply from single second the cross section of groove 32, identical with the first groove 31 of cutting off the water supply, this cross section includes hypotenuse and the straight flange that front and back are connected, the first row tank 14 of annular it is provided with between inner side and the main shaft 3 of outer press cover 1, first row tank 14 just periphery to two second grooves 32 of cutting off the water supply, offering first row water hole 15 on outer press cover 1, first row water hole 15 is connected with first row tank 14;Two the second rear sides cutting off the water supply groove 32 are provided with annular the 3 and cut off the water supply groove 33, identical with the first groove 31 of cutting off the water supply, cut off the water supply from the 3rd the cross section of groove 33, this cross section includes hypotenuse and the straight flange that front and back are connected, the second row tank 16 of annular it is provided with between inner side and the main shaft 3 of outer press cover 1, second row tank 16 is just being cut off the water supply to the some 3rd the periphery of groove 33, and outer press cover 1 offers second row water hole 17, and second row water hole 17 is connected with second row tank 16.
The medial surface of outer press cover 1 includes First terrace 18 and the second step face 19 that front and back are arranged, first row tank 14 is arranged on First terrace 18, second row tank 16 is arranged on second step face 19, outer press cover 1 in the endoporus aperture at second step face 19 place more than the endoporus aperture of the step surface 511 at close outer press cover 1 place of outer labyrinth ring 51.
Above-mentioned sleeping add after main shaft 3 front end protection mechanism installs, in machine tooling process, low-pressure gas enters in annular gas tank 21 through gas hole 12, enter back in first annular gap 41, led by the angle in first annular gap 41, final from blowout in the second annular gap 42, and the gas of blowout forms annular air curtain when main shaft 3 rotates, it is possible to effectively prevent cooling water and iron filings from entering main shaft 3.If there being a small amount of gas to flow to main shaft 3 rear end through the 3rd annular gap 43, gear gas face 34 can effectively prevent air to be further continued for entering outer labyrinth ring 51 and interior labyrinth ring 52 and main shaft bearing 53 place, plays good protection effect, thus reducing the damage to main shaft bearing 53.
The cooling water of main shaft 3 front end initially enters first and cuts off the water supply groove 31 radially being thrown away;A small amount of first cooling water cutting off the water supply groove 31 protection of breaking through enters second and cuts off the water supply groove 32 be dumped in first row tank 14, first row water hole 15 discharge.Even if there being minimal amount of cooling water breakthrough first groove 31 and second of cutting off the water supply to cut off the water supply the protection of groove 32, also can cut off the water supply the 3rd and be dumped into second row tank 32 in groove 33 and discharge through second row water hole 17.First cut off the water supply groove 31, the second groove 32 and the 3rd groove 33 of cutting off the water supply of cutting off the water supply plays the effect of multiple-protection, makes the sleeping waterproof adding main shaft 3 front end and anti-iron filings more thoroughly, effectively, the sleeping reliability that add main shaft 3 is substantially improved.

Claims (6)

  1. null1. one kind sleeping adds front-end of spindle protection mechanism,It is characterized in that including being arranged on outer press cover and the inner end cap of front-end of spindle,The rear side of described outer press cover is provided with outer labyrinth ring and interior labyrinth ring,Main shaft bearing is arranged on the rear side of described outer labyrinth ring and interior labyrinth ring,The front end of described outer press cover is provided with the installation cavity of indent,Described inner end cap is arranged in described installation cavity,Described outer press cover offers the gas hole being connected with extraneous source of the gas,Described extraneous source of the gas is for passing into low-pressure gas to described gas hole,Described inner end cap offers the annular gas tank being connected with described gas hole,The inner side of described inner end cap is provided with the first inclined-plane of oblique front-end of spindle,Described outer press cover be provided with second inclined-plane relative with the first described inclined-plane,It is formed with first annular gap between the first described inclined-plane and the second described inclined-plane,Described first annular gap is connected with described annular gas tank,The second annular gap being connected with described first annular gap it is provided with between described inner end cap and main shaft,The 3rd annular gap being connected with the second described annular gap it is provided with between described outer press cover and main shaft,Main shaft is provided with gear gas face radially at the rear side of the 3rd described annular gap.
  2. 2. one according to claim 1 is sleeping adds front-end of spindle protection mechanism, it is characterised in that the air pressure of described low-pressure gas is 0.2~0.3MPa.
  3. 3. one according to claim 1 and 2 is sleeping adds front-end of spindle protection mechanism, it is characterized in that front-end of spindle is provided with the first of some annulars and cuts off the water supply groove, some described first groove of cutting off the water supply is positioned at the front side of described inner end cap, cut off the water supply from single described first the cross section of groove, this cross section include before and after the hypotenuse that is connected and straight flange.
  4. 4. one according to claim 3 is sleeping adds front-end of spindle protection mechanism, it is characterized in that some the first described rear sides cutting off the water supply groove are provided with the second of some annulars and cut off the water supply groove, some described second groove of cutting off the water supply is positioned at the rear side of described inner end cap, cut off the water supply from single described second the cross section of groove, this cross section includes hypotenuse and the straight flange that front and back are connected, the first row tank of annular it is provided with between inner side and the described main shaft of described outer press cover, described first row tank is just being cut off the water supply to some described second the periphery of groove, described outer press cover offers first row water hole, described first row water hole is connected with described first row tank.
  5. 5. one according to claim 4 is sleeping adds front-end of spindle protection mechanism, it is characterized in that some the second described rear sides cutting off the water supply groove are provided with the 3rd of some annulars and cut off the water supply groove, cut off the water supply from the single described 3rd the cross section of groove, this cross section includes hypotenuse and the straight flange that front and back are connected, the second row tank of annular it is provided with between inner side and the described main shaft of described outer press cover, described second row tank is just being cut off the water supply to the some described 3rd the periphery of groove, described outer press cover offers second row water hole, described second row water hole is connected with described second row tank.
  6. 6. one according to claim 5 is sleeping adds front-end of spindle protection mechanism, it is characterized in that the medial surface of described outer press cover includes First terrace and the second step face that front and back are arranged, described first row tank is arranged on described First terrace, described second row tank is arranged on described second step face, described outer press cover in the endoporus aperture at described second step face place more than the endoporus aperture of the step surface at the close described outer press cover place of described outer labyrinth ring.
CN201620155807.7U 2016-03-01 2016-03-01 Crouch and add front -end of spindle protection machanism Withdrawn - After Issue CN205394123U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620155807.7U CN205394123U (en) 2016-03-01 2016-03-01 Crouch and add front -end of spindle protection machanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620155807.7U CN205394123U (en) 2016-03-01 2016-03-01 Crouch and add front -end of spindle protection machanism

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Publication Number Publication Date
CN205394123U true CN205394123U (en) 2016-07-27

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Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106246923A (en) * 2016-08-29 2016-12-21 北京超同步伺服股份有限公司 Split type machine tool chief axis gas sealing mechanism
CN106246925A (en) * 2016-08-29 2016-12-21 北京超同步伺服股份有限公司 Labyrinth type machine tool chief axis air curtain protection device
CN106246924A (en) * 2016-08-29 2016-12-21 北京超同步伺服股份有限公司 Split type air curtain protection device for machine tool chief axis
CN107838484A (en) * 2017-10-30 2018-03-27 山东鲁南机床有限公司 Turning center high speed high pulling torque power milling head
CN108223812A (en) * 2016-12-22 2018-06-29 湖南中大创远数控装备有限公司 Rotation axis seal structure
CN109261993A (en) * 2018-11-21 2019-01-25 陕西海力特精密机械有限公司 Numerically controlled lathe high-speed electric main shaft gas sealing structure
CN109531411A (en) * 2018-12-28 2019-03-29 广州市威嘉机床有限公司 A kind of high-power grinding spindle structure
CN109622998A (en) * 2019-01-14 2019-04-16 江苏大卫精工科技有限公司 A high-speed spindle anti-fouling suction structure
CN110899732A (en) * 2019-12-04 2020-03-24 浙江双正科技股份有限公司 a power head
CN111111325A (en) * 2020-01-30 2020-05-08 深圳市爱贝科精密机械有限公司 Main shaft gas circuit drainage mechanism
CN111360694A (en) * 2020-04-01 2020-07-03 深圳市爱贝科精密机械有限公司 An air seal mechanism for the front end of the main shaft
CN111623040A (en) * 2020-06-01 2020-09-04 东莞市建科机械有限公司 Main shaft inner bearing protection device
CN112025395A (en) * 2020-09-14 2020-12-04 深圳市爱贝科精密机械有限公司 A front-end air seal mechanism of a lathe spindle
CN112846930A (en) * 2020-12-31 2021-05-28 浙江震环数控机床股份有限公司 Numerical control machine tool
CN114453602A (en) * 2022-02-12 2022-05-10 深圳市爱贝科精密工业股份有限公司 A horizontal milling machine spindle

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106246925A (en) * 2016-08-29 2016-12-21 北京超同步伺服股份有限公司 Labyrinth type machine tool chief axis air curtain protection device
CN106246924A (en) * 2016-08-29 2016-12-21 北京超同步伺服股份有限公司 Split type air curtain protection device for machine tool chief axis
CN106246923A (en) * 2016-08-29 2016-12-21 北京超同步伺服股份有限公司 Split type machine tool chief axis gas sealing mechanism
CN108223812A (en) * 2016-12-22 2018-06-29 湖南中大创远数控装备有限公司 Rotation axis seal structure
CN108223812B (en) * 2016-12-22 2024-12-31 湖南中大创远数控装备有限公司 Rotating shaft seal structure
CN107838484A (en) * 2017-10-30 2018-03-27 山东鲁南机床有限公司 Turning center high speed high pulling torque power milling head
CN109261993A (en) * 2018-11-21 2019-01-25 陕西海力特精密机械有限公司 Numerically controlled lathe high-speed electric main shaft gas sealing structure
CN109531411B (en) * 2018-12-28 2024-03-12 广州市威嘉机床有限公司 High-power grinding main shaft structure
CN109531411A (en) * 2018-12-28 2019-03-29 广州市威嘉机床有限公司 A kind of high-power grinding spindle structure
CN109622998A (en) * 2019-01-14 2019-04-16 江苏大卫精工科技有限公司 A high-speed spindle anti-fouling suction structure
CN110899732A (en) * 2019-12-04 2020-03-24 浙江双正科技股份有限公司 a power head
CN111111325A (en) * 2020-01-30 2020-05-08 深圳市爱贝科精密机械有限公司 Main shaft gas circuit drainage mechanism
CN111360694A (en) * 2020-04-01 2020-07-03 深圳市爱贝科精密机械有限公司 An air seal mechanism for the front end of the main shaft
CN111623040A (en) * 2020-06-01 2020-09-04 东莞市建科机械有限公司 Main shaft inner bearing protection device
CN112025395A (en) * 2020-09-14 2020-12-04 深圳市爱贝科精密机械有限公司 A front-end air seal mechanism of a lathe spindle
CN112846930A (en) * 2020-12-31 2021-05-28 浙江震环数控机床股份有限公司 Numerical control machine tool
CN112846930B (en) * 2020-12-31 2022-03-15 浙江震环数控机床股份有限公司 Numerical control machine tool
CN114453602A (en) * 2022-02-12 2022-05-10 深圳市爱贝科精密工业股份有限公司 A horizontal milling machine spindle

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Granted publication date: 20160727

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