CN212121675U - Anti-channeling high-power main shaft - Google Patents
Anti-channeling high-power main shaft Download PDFInfo
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- CN212121675U CN212121675U CN202020501033.5U CN202020501033U CN212121675U CN 212121675 U CN212121675 U CN 212121675U CN 202020501033 U CN202020501033 U CN 202020501033U CN 212121675 U CN212121675 U CN 212121675U
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Abstract
The utility model discloses a prevent scurrying high-power main shaft, which comprises a housin, the dabber, the bearing frame, the spring holder, fixing base and back nut, the rear portion periphery of dabber is installed in the bearing frame through the back bearing, bearing frame fixed mounting is on the rear end of casing, spring holder slidable mounting just withstands terminal surface before the outer lane of back bearing in the rear end of casing, evenly seted up the forward seat hole of a plurality of openings on the spring holder, install the spring that withstands fixing base trailing flank in the seat hole, fixing base fixed mounting is in the rear end of casing, axial screw hole has still been seted up on the spring holder, install the adjustable screw that withstands fixing base trailing flank in the axial screw hole, back nut is fixed to be locked on the rear end portion external screw thread of dabber and withstands the inner circle. The utility model discloses through adjustable screw adjustment after the rear bearing passes through the spring holder atress, make the main shaft radial and the axial of dabber reach maximum limit atress when the cutting processing, prevented that the main shaft drunkenness from passing, improved bearing life greatly.
Description
Technical Field
The utility model belongs to the technical field of the main shaft, concretely relates to prevent scurrying high-power main shaft.
Background
The electric main shaft is a new technology which integrates a machine tool main shaft and a main shaft motor into a whole and appears in the field of numerical control machine tools, and the electric main shaft, a linear motor technology and a high-speed cutter technology can push high-speed processing to a new era. When the existing spindle is used for cutting, the axial and radial play amplitude of a mandrel of the spindle is large, so that the service life of a bearing is short.
SUMMERY OF THE UTILITY MODEL
In view of the deficiencies of the prior art, the object of the present invention is to provide a high-power main shaft with anti-play function.
In order to achieve the above purpose, the utility model adopts the following technical scheme: an anti-channeling high-power main shaft comprises a shell, a core shaft, a bearing seat, a spring seat, a fixed seat and a rear nut, the periphery of the front part of the mandrel is arranged in the shell through a front bearing, the periphery of the rear part of the mandrel is arranged in the bearing seat through a rear bearing, the bearing seat is fixedly arranged on the rear end of the shell, the spring seat is slidably arranged in the rear end of the shell and props against the front end face of the outer ring of the rear bearing, the spring seat is provided with a plurality of seat holes which are uniformly distributed and have forward openings, the seat holes are internally provided with springs which are propped against the rear side surface of the fixed seat, the fixed seat is fixedly arranged in the rear end of the shell, the spring seat is also provided with a plurality of axial threaded holes which are uniformly distributed, the rear nut is fixedly locked on the external thread at the rear end of the mandrel and abuts against the rear end face of the inner ring of the rear bearing.
Preferably, the rear end inner edge department of fixing base is provided with the first guide ring of backward extension, the periphery of first guide ring and the interior circumference sliding fit of spring holder, the rear end inner edge department of spring holder is provided with the second guide ring of backward extension, the periphery of second guide ring and the interior circumference sliding fit of bearing frame.
Preferably, the side wall of the casing is provided with a first screw fastening hole, the periphery of the fixing base is provided with an annular fixing groove opposite to the first screw fastening hole, and the fixing base is fixed in the casing by a first fixing screw penetrating through the first screw fastening hole and then propping against the annular fixing groove.
Preferably, the bearing seat further comprises a sealing cover and a rear cover, wherein the sealing cover is fixedly arranged at the rear end of the bearing seat and covers the rear nut and the rear bearing, and the rear cover is arranged at the rear end of the bearing seat, is fixedly connected with the sealing cover and covers the sealing cover.
Preferably, the bearing seat is provided with a wire outlet hole, the sealing cover is provided with an avoiding notch opposite to the wire outlet hole, the center of the rear cover is provided with a power plug fixing hole, and the power plug fixing hole is communicated with the wire outlet hole through the avoiding notch.
Preferably, still include stator, rotor, preceding compensating ring and back compensating ring, the fixed inner chamber middle part that sets up at the casing of stator, the fixed cover of rotor is established in the middle part periphery of dabber and is cooperated with the stator, both ends all are provided with the short circuit ring around the rotor, preceding compensating ring and back compensating ring are all established and are located the front and back both sides of two short circuit rings respectively in the spindle.
Preferably, a second screw fastening hole is formed in the side wall of the middle of the casing, and the stator is fixed in the casing through the second screw fastening hole by a second fixing screw.
Preferably, the oil retaining cover comprises an inner nut, a front nut, a dustproof cover and an oil retaining cover, the inner nut is fixedly locked on the front-end internal thread of the shell and abuts against the front end face of the outer ring of the front bearing, the front nut is fixedly locked on the front external thread of the mandrel and abuts against the front end face of the inner ring of the front bearing, the dustproof cover is fixedly installed on the front-end inner edge of the shell, and the oil retaining cover is fixedly installed on the front-end outer edge of the shell.
Preferably, the front outer periphery of the front nut is provided with a first annular groove with an outward opening, the front inner periphery of the dust cover is provided with a first annular convex part in clearance fit with the first annular groove, the rear end of the front nut is provided with a second annular groove with an inward opening, and the inner nut is provided with a second annular convex part in clearance fit with the second annular groove.
Preferably, the side wall of the front nut is provided with a third screw fastening hole, and the front nut is fixed on the front part of the mandrel after a third fixing screw penetrates through the third screw fastening hole; and a fourth screw fastening hole is formed in the side wall of the rear nut, and the rear nut is fixed on the rear end part of the mandrel after a fourth fixing screw penetrates through the fourth screw fastening hole.
Preferably, a plurality of cooling oil ducts which are distributed at intervals are formed in the side wall of the shell, the cooling oil ducts penetrate through the front end surface and the rear end surface of the shell, a plurality of rear communicating grooves which are uniformly distributed and used for communicating two adjacent cooling oil ducts are formed in the rear end surface of the shell, an oil inlet hole communicated with one cooling oil duct is formed in the bearing seat, and a plurality of front communicating grooves which are uniformly distributed and used for communicating two adjacent cooling oil ducts are formed in the rear end surface of the oil baffle cover.
Preferably, the periphery of the dust cover is provided with a first annular sealing groove, and a first sealing ring in sealing contact with the inner periphery of the oil baffle cover is arranged in the first annular sealing groove; and a second annular sealing groove is formed in each of two sides of the opening of the front communication groove, and a second sealing ring in sealing contact with the front end face of the shell is installed in the second annular sealing groove.
Compared with the prior art, the utility model discloses following beneficial effect has: this prevent scurrying high-power main shaft carries out elasticity floating support to the rear bearing through casing, fixing base, spring and spring holder, carries out adjustable spacing to the rear bearing through casing, fixing base, adjustable screw and spring holder, and the rear bearing passes through the adjustable screw adjustment position behind the spring holder atress, makes the radial of main shaft dabber reach the biggest ultimate atress when cutting processing, has prevented that the main shaft from scurrying the head, and protection effect is good, has improved bearing life greatly.
Drawings
Fig. 1 is a cross-sectional view of the overall structure of the embodiment of the present invention.
Fig. 2 is a sectional view of a front structure of an embodiment of the present invention.
Fig. 3 is a rear structure sectional view of the embodiment of the present invention.
The labels in the figure are: 1. a housing; 2. a mandrel; 3. a bearing seat; 4. a spring seat; 5. a fixed seat; 6. a back nut; 7. a front bearing; 8. a rear bearing; 9. a spring; 10. an axial threaded bore; 11. an adjustable screw; 12. a first guide ring; 13. a second guide ring; 14. a first screw fastening hole; 15. an annular fixing groove; 16. a sealing cover; 17. a rear cover; 18. a wire outlet hole; 19. avoiding the notch; 20. a power plug fixing hole; 21. a stator; 22. a rotor; 23. a front gimbal; 24. a rear balancing ring; 25. a short circuit ring; 26. a second screw fastening hole; 27. an inner nut; 28. a front nut; 29. a dust cover; 30. an oil blocking cover; 31. a first annular groove; 32. a first annular protrusion; 33. a second annular groove; 34. a second annular protrusion; 35. a third screw fastening hole; 36. a fourth screw fastening hole; 37. a cooling oil passage; 38. an oil inlet hole; 39. a front communicating groove; 40. a first annular seal groove; 41. a second annular seal groove; 42. flattening; 43. an external thread; 44. and (4) taper holes.
Detailed Description
In order to make the aforementioned and other features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
As shown in fig. 1 to 3, the embodiment provides an anti-moving high-power spindle, which includes a housing 1, a mandrel 2, a bearing seat 3, a spring seat 4, a fixed seat 5 and a rear nut 6, wherein the front periphery of the mandrel 2 is installed in the housing 1 through front bearings 7 (specifically, two front bearings 7, and a front spacer is arranged between the two front bearings 7), the rear periphery of the mandrel 2 is installed in the bearing seat 3 through rear bearings 8 (specifically, two rear bearings 8, and a rear spacer is arranged between the two rear bearings 8), the bearing seat 3 is fixedly installed at the rear end of the housing 1, the spring seat 4 is slidably installed in the rear end of the housing 1 and abuts against the front end surface of the outer ring of the rear bearing 8, a plurality of (e.g., three) seat holes which are uniformly distributed and have forward openings are formed in the spring seat hole, a spring 9 which abuts against the rear side surface of the fixed seat 5 is installed in the seat hole, the fixed seat, a plurality of (such as three) evenly distributed axial threaded holes 10 are further formed in the spring seat 4, adjustable screws 11 which are abutted to the rear side face of the fixing seat 5 are installed in the axial threaded holes 10, and the rear nut 6 is fixedly locked on the external thread of the rear end portion of the mandrel 2 and abutted to the rear end face of the inner ring of the rear bearing 8. This embodiment is through casing 1, fixing base 5, spring 9 and spring holder 4 carry out elasticity floating support to rear bearing 8, through casing 1, fixing base 5, adjustable screw 11 and spring holder 4 carry out adjustable spacing to rear bearing 8, through adjustable screw 11 adjusting position behind rear bearing 8 through spring holder 4 atress, make the main shaft when cutting add the radial of 2 of dabber and axial reach maximum limit atress, prevented that the main shaft drunkenness from passing, it is effectual to protect, bearing life has been improved greatly.
In this embodiment, the rear end inner edge of fixing base 5 is provided with first guide ring 12 of backward extension, the periphery of first guide ring 12 and the inner peripheral sliding fit of spring holder 4, the rear end inner edge of spring holder 4 is provided with second guide ring 13 of backward extension, the periphery of second guide ring 13 and the inner peripheral sliding fit of bearing frame 3. In order to conveniently and fixedly mount the fixing seat 5, the side wall of the housing 1 is provided with a first screw fastening hole 14, the periphery of the fixing seat 5 is provided with an annular fixing groove 15 opposite to the first screw fastening hole 14, and the fixing seat 5 is fixed in the housing 1 by a first fixing screw (omitted in the figure) penetrating through the first screw fastening hole 14 and then propping against the annular fixing groove 15, so that the fixing seat 5 is more reliably fixed.
In this embodiment, the anti-channeling high power spindle further includes a sealing cover 16 and a rear cover 17, the sealing cover 16 is fixedly installed on the rear end of the bearing housing 3 and covers the rear nut 6 and the rear bearing 8, and the rear cover 17 is disposed on the rear end of the bearing housing 3 and is fixedly connected with the sealing cover 16 and covers the sealing cover 16. The bearing seat 3 is provided with a wire outlet hole 18, the fixing seat 5 and the spring seat 4 are both provided with threading holes opposite to the wire outlet hole 18, the sealing cover 16 is provided with an avoiding notch 19 opposite to the wire outlet hole 18, the center of the rear cover 17 is provided with a power plug fixing hole 20, and the power plug fixing hole 20 is communicated with the wire outlet hole 18 through the avoiding notch 19, so that the following stator power cord can be conveniently penetrated.
In this embodiment, this prevent scurrying high-power main shaft still includes stator 21, rotor 22, preceding compensating ring 23 and back compensating ring 24, stator 21 is fixed to be set up in the inner chamber middle part of casing 1, rotor 22 is fixed to be established in the middle part periphery of dabber 2 and cooperatees with stator 21, both ends all are provided with short circuit ring 25 around rotor 22, preceding compensating ring 23 and back compensating ring 24 all establish on dabber 2 and are located the front and back both sides of two short circuit rings 25 respectively. In order to conveniently and fixedly mount the stator 21, a second screw fastening hole 26 is formed in the side wall of the middle portion of the housing 1, and the stator 21 is fixed in the housing 1 by a second fixing screw (not shown) passing through the second screw fastening hole 26, so that the stator 21 is fixed reliably. Wherein the stator 21 and the rotor 22 constitute a motor; the stator 21 includes a core and a coil; rotor 2216 is preferably a cast copper rotor 22, further increasing the spindle power to over 11 kw at 18000 rpm.
In this embodiment, the anti-channeling high-power spindle further includes an inner nut 27, a front nut 28, a dust cap 29 and an oil blocking cap 30, the inner nut 27 is fixedly locked on the front-end internal thread of the housing 1 and abuts against the front end face of the outer ring of the front bearing 7, the front nut 28 is fixedly locked on the front-portion external thread of the mandrel 2 and abuts against the front end face of the inner ring of the front bearing 7, the dust cap 29 is fixedly installed on the front-end inner edge of the housing 1, and the oil blocking cap 30 is fixedly installed on the front-end outer edge of the housing 1. Since the inner nut 27 and the dust cap 29 are clearance-fitted to the front nut 28, respectively, there is no interference with the rotation of the front nut 28 along with the spindle 2. Wherein, the front end of dabber 2 has set gradually first step and the second step that the diameter increases progressively from back to front, is provided with flat position 42 on the first step, conveniently locks with the handle, and the periphery of second step is provided with external screw thread 43, and the front end of dabber 2 is provided with taper hole 44, the cutter of easy to assemble.
In this embodiment, the front outer circumference of the front nut 28 defines a first annular groove 31 with an outward opening, the front inner circumference of the dust cover 29 defines a first annular protrusion 32 with a clearance fit with the first annular groove 31, the rear end of the front nut 28 defines a second annular groove 33 with a rearward opening, and the inner nut 27 defines a second annular protrusion 34 with a clearance fit with the second annular groove 33. In the embodiment, the first annular groove 31 and the two first annular protrusions 32 are matched to form a circuitous blocking structure, so that impurities such as dust, cooling water and the like are effectively prevented from entering the inner cavity of the shell 1 of the main shaft, and the service life of the main shaft is prolonged; a circuitous blocking structure is also formed by matching the second annular groove 33 with the second annular convex part 34, so that impurities such as dust, cooling water and the like are further effectively prevented from entering the inner cavity of the shell 1 of the main shaft, and the service life of the main shaft is further prolonged.
In the embodiment, in order to further fix the front nut 28, the side wall of the front nut 28 is provided with a third screw fastening hole 35, and the front nut 28 is fixed on the front part of the mandrel 2 after passing through the third screw fastening hole 35 by a third fixing screw (omitted in the figure), so that the front nut 28 is fixed more reliably; in order to further fix the rear nut 6, the side wall of the rear nut 6 is provided with a fourth screw fastening hole 36, and the rear nut 6 is fixed on the rear end of the spindle 2 after passing through the fourth screw fastening hole 36 by a fourth fixing screw (omitted in the figure), so that the rear nut 6 is fixed more reliably.
In this embodiment, a plurality of cooling oil ducts 37 distributed at intervals are formed in the side wall of the housing 1, the cooling oil ducts 37 penetrate through the front end surface and the rear end surface of the housing 1, a plurality of rear communicating grooves (not visible in the figure) which are uniformly distributed and used for communicating the two adjacent cooling oil ducts 37 are formed in the rear end surface of the housing 1, an oil inlet 38 communicated with one of the cooling oil ducts 37 is formed in the bearing block 3, a plurality of front communicating grooves 39 which are uniformly distributed and used for communicating the two adjacent cooling oil ducts 37 are formed in the rear end surface of the oil blocking cover 30, the housing 1 is cooled by cooling oil, and the cooling effect is good.
In this embodiment, in order to improve the sealing performance of the spindle, a first annular seal groove 40 is formed in the outer periphery of the dust cap 29, a first seal ring (not shown) in sealing contact with the inner periphery of the oil deflector cover 30 is installed in the first annular seal groove 40, and dust, cooling water and the like are prevented from entering through the first seal ring; a second annular seal groove 41 is formed in each of two sides of the opening of the front communication groove 39, a second seal ring (omitted in the figure) in sealing contact with the front end face of the housing 1 is installed in the second annular seal groove 41, and cooling oil leakage is prevented through the second seal ring.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and any person skilled in the art should not depart from the technical scope of the present invention, and any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention should fall within the scope of the present invention.
Claims (10)
1. A prevent scurrying high-power main shaft which characterized in that: including casing, dabber, bearing frame, spring holder, fixing base and back nut, the anterior periphery of dabber is installed in the casing through the front bearing, the rear portion periphery of dabber is installed in the bearing frame through the back bearing, bearing frame fixed mounting is on the rear end of casing, spring holder slidable mounting just withstands terminal surface before the outer lane of back bearing in the rear end of casing, set up a plurality of evenly distributed and opening forward seat hole on the spring holder, install the spring that withstands the fixing base trailing flank in the seat hole, fixing base fixed mounting is in the rear end of casing, still set up a plurality of evenly distributed's axial screw hole on the spring holder, the adjustable screw that withstands the fixing base trailing flank is installed to the axial screw hole, back nut is fixed to be locked on the rear end portion external screw of dabber and withstands the inner circle rear end face of back bearing.
2. The anti-tamper high power spindle according to claim 1, characterized in that: the utility model discloses a spring seat, including fixing base, spring holder, the rear end of fixing base, the rear end inner edge department of fixing base is provided with the first guide ring of ranging back, the periphery of first guide ring and the interior peripheral sliding fit of spring holder, the rear end inner edge department of spring holder is provided with the second guide ring of ranging back, the periphery of second guide ring and the interior peripheral sliding fit of bearing frame.
3. The anti-tamper high power spindle according to claim 1, characterized in that: the side wall of the shell is provided with a first screw fastening hole, the periphery of the fixing seat is provided with an annular fixing groove opposite to the first screw fastening hole, and the fixing seat is fixed in the shell by a first fixing screw penetrating through the first screw fastening hole and then propping against the annular fixing groove.
4. The anti-tamper high power spindle according to claim 1, characterized in that: the bearing seat is fixedly arranged on the bearing seat, the rear nut is fixedly arranged on the rear end of the bearing seat, the rear bearing is fixedly arranged on the rear end of the bearing seat, and the rear nut is fixedly connected with the sealing cover and covers the sealing cover.
5. The anti-tamper high power spindle according to claim 4, characterized in that: the bearing seat is provided with a wire outlet hole, the sealing cover is provided with an avoiding notch opposite to the wire outlet hole, the center of the rear cover is provided with a power plug fixing hole, and the power plug fixing hole is communicated with the wire outlet hole through the avoiding notch.
6. The anti-tamper high power spindle according to claim 1, characterized in that: still include stator, rotor, preceding compensating ring and back compensating ring, the fixed inner chamber middle part that sets up at the casing of stator, the fixed cover of rotor is established in the middle part periphery of dabber and is cooperated with the stator, both ends all are provided with the short circuit ring around the rotor, preceding compensating ring and back compensating ring all establish at the spindle and lie in two short circuit ring's front and back both sides respectively.
7. The anti-tamper high power spindle according to claim 6, characterized in that: and a second screw fastening hole is formed in the side wall of the middle part of the shell, and the stator is fixed in the shell through the second screw fastening hole by a second fixing screw.
8. The anti-tamper high power spindle according to claim 1, characterized in that: the front nut is fixedly locked on the front external thread of the mandrel and abuts against the front end face of the inner ring of the front bearing, the dust cover is fixedly installed on the inner edge of the front end of the shell, and the oil blocking cover is fixedly installed on the outer edge of the front end of the shell.
9. The anti-tamper high power spindle according to claim 8, characterized in that: the dustproof cover is characterized in that a first annular groove with an outward opening is formed in the periphery of the front portion of the front nut, a first annular convex portion in clearance fit with the first annular groove is formed in the inner periphery of the front portion of the dustproof cover, a second annular groove with an inward opening is formed in the rear end of the front nut, and the inner nut is provided with a second annular convex portion in clearance fit with the second annular groove.
10. The anti-tamper high power spindle according to claim 8, characterized in that: the oil baffle is characterized in that a plurality of cooling oil ducts which are distributed at intervals are formed in the side wall of the shell, the cooling oil ducts penetrate through the front end face and the rear end face of the shell, a plurality of rear communicating grooves which are uniformly distributed and used for communicating two adjacent cooling oil ducts are formed in the rear end face of the shell, an oil inlet hole communicated with one of the cooling oil ducts is formed in the bearing block, and a plurality of front communicating grooves which are uniformly distributed and used for communicating two adjacent cooling oil ducts are formed in the rear end face of the oil baffle cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020501033.5U CN212121675U (en) | 2020-04-08 | 2020-04-08 | Anti-channeling high-power main shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020501033.5U CN212121675U (en) | 2020-04-08 | 2020-04-08 | Anti-channeling high-power main shaft |
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| Publication Number | Publication Date |
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| CN212121675U true CN212121675U (en) | 2020-12-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020501033.5U Active CN212121675U (en) | 2020-04-08 | 2020-04-08 | Anti-channeling high-power main shaft |
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| CN (1) | CN212121675U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115217852A (en) * | 2022-07-21 | 2022-10-21 | 中国第一汽车股份有限公司 | Disconnected free end bearing seat |
| CN115213145A (en) * | 2022-07-14 | 2022-10-21 | 深圳市瑞驰文体科技发展有限公司 | Unattended intelligent desktop cleaning robot |
| CN115383144A (en) * | 2022-08-30 | 2022-11-25 | 宝鸡一机智能装备股份有限公司 | ECF200 square turning machine |
| CN116329585A (en) * | 2023-05-15 | 2023-06-27 | 齐鲁理工学院 | Motorized spindle and numerical control machine tool comprising motorized spindle |
-
2020
- 2020-04-08 CN CN202020501033.5U patent/CN212121675U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115213145A (en) * | 2022-07-14 | 2022-10-21 | 深圳市瑞驰文体科技发展有限公司 | Unattended intelligent desktop cleaning robot |
| CN115213145B (en) * | 2022-07-14 | 2024-03-22 | 深圳市瑞驰文体科技发展有限公司 | Intelligent desktop cleaning robot capable of being unattended |
| CN115217852A (en) * | 2022-07-21 | 2022-10-21 | 中国第一汽车股份有限公司 | Disconnected free end bearing seat |
| CN115383144A (en) * | 2022-08-30 | 2022-11-25 | 宝鸡一机智能装备股份有限公司 | ECF200 square turning machine |
| CN116329585A (en) * | 2023-05-15 | 2023-06-27 | 齐鲁理工学院 | Motorized spindle and numerical control machine tool comprising motorized spindle |
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