CN112059214A - High-efficient oil-gas lubrication main shaft - Google Patents
High-efficient oil-gas lubrication main shaft Download PDFInfo
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- CN112059214A CN112059214A CN202011066887.6A CN202011066887A CN112059214A CN 112059214 A CN112059214 A CN 112059214A CN 202011066887 A CN202011066887 A CN 202011066887A CN 112059214 A CN112059214 A CN 112059214A
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- rear bearing
- bearing seat
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/70—Stationary or movable members for carrying working-spindles for attachment of tools or work
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/12—Arrangements for cooling or lubricating parts of the machine
- B23Q11/121—Arrangements for cooling or lubricating parts of the machine with lubricating effect for reducing friction
- B23Q11/123—Arrangements for cooling or lubricating parts of the machine with lubricating effect for reducing friction for lubricating spindle bearings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/12—Arrangements for cooling or lubricating parts of the machine
- B23Q11/126—Arrangements for cooling or lubricating parts of the machine for cooling only
- B23Q11/127—Arrangements for cooling or lubricating parts of the machine for cooling only for cooling motors or spindles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention discloses a high-efficiency oil-gas lubrication main shaft which comprises a steel cylinder, a front bearing assembly, a rear bearing assembly and a rotor, wherein the rear bearing assembly comprises a rear bearing seat sleeve, the rear bearing seat sleeve is fixedly connected with the steel cylinder, a steel ball sleeve is arranged in the rear bearing seat sleeve, a rear bearing seat is arranged in the steel ball sleeve, two laminated rear bearings are arranged in the rear bearing seat, a rear bearing pressing plate is fixed at the rear end of the rear bearing seat sleeve, the rear bearings are oil-gas lubrication bearings, two oil inlets are fixed at the rear end of the rear bearing seat, two rear bearing oil-gas inlet channels are formed in the rear bearing seat, one ends of the two rear bearing oil-gas inlet channels are respectively communicated with the two oil inlets, the other ends of the two rear bearing oil-gas inlet channels are respectively communicated with oil-gas inlets of the two rear. The invention adopts an oil-gas lubrication mode, can independently provide oil-gas mixture for each bearing and can simultaneously play a role in cooling the bearings.
Description
Technical Field
The invention relates to a main shaft, in particular to an efficient oil-gas lubrication main shaft.
Background
The main shaft is a common executing mechanism in machine tool equipment, the application of the main shaft brings great help to a numerical control machine tool machining process, the machining efficiency and the machining quality of the numerical control technology are greatly improved, in view of the importance of the electric main shaft, the performance requirement of the electric main shaft is higher and higher, particularly for a high-speed main shaft, the requirement on the lubricating performance of the internal operation of the electric main shaft is higher and higher, therefore, how to ensure the lubricating performance of the front bearing part and the rear bearing part of the main shaft and simultaneously improve the cooling performance of the front bearing part and the rear bearing part are technical problems to be solved urgently in the prior art.
Disclosure of Invention
The invention aims to solve the technical problem of providing an efficient oil-gas lubrication main shaft which adopts an oil-gas lubrication mode, can independently provide oil-gas mixtures for each bearing and can simultaneously play a cooling role for the bearing, aiming at the defects of the prior art.
In order to solve the technical problems, the invention adopts the following technical scheme.
A high-efficiency oil-gas lubrication main shaft comprises a steel cylinder, wherein a front bearing assembly and a rear bearing assembly are respectively arranged at the front end and the rear end of the steel cylinder, a rotor penetrates through the steel cylinder, the front end of the rotor penetrates through the front bearing assembly, the rear bearing assembly comprises a rear bearing sleeve, the rear bearing sleeve is fixedly connected with the steel cylinder, a steel ball sleeve is arranged in the rear bearing sleeve, a plurality of steel balls distributed in an array mode are embedded in the steel ball sleeve, a rear bearing seat is arranged in the steel ball sleeve, two stacked rear bearings are arranged in the rear bearing seat, the rear end of the rotor sequentially penetrates through the two rear bearings, a plurality of early warning springs are clamped between the front end face of the rear bearing seat and the rear bearing sleeve, the early warning springs are uniformly distributed along the circumferential direction of the rear bearing seat, and a rear bearing pressing plate is fixed at the rear end of the rear bearing sleeve, the rear bearing pressing plate covers the steel ball sleeve, the rear bearing seat and the rear side of the rear bearing, the rear bearing is an oil-gas lubrication bearing, two oil inlets are fixed to the rear end of the rear bearing seat, two rear bearing oil inlet channels are formed in the rear bearing seat, one ends of the two rear bearing oil inlet channels are communicated with the two oil inlets respectively, the other ends of the two rear bearing oil inlet channels are communicated with oil-gas inlets of the two rear bearings respectively, a rear bearing oil-gas outlet channel is formed in the rear bearing seat, and oil-gas outlets of the two rear bearings are communicated with the rear bearing oil-gas outlet channel.
Preferably, a first oil-gas guide groove is formed in the rear bearing sleeve, and the first oil-gas guide groove is communicated between the oil-gas outlet channel of the rear bearing and the oil-gas outlet of the rear bearing.
Preferably, an oil inlet nozzle is fixed to the oil inlet.
Preferably, the front bearing assembly comprises a front bearing seat, two front bearings are arranged in the front bearing seat, the front end of the rotor sequentially penetrates through the two front bearings, the front bearings are oil-gas lubrication bearings, two front bearing oil-gas inlet channels are formed in the front bearing seat, the two front bearing oil-gas inlet channels are respectively communicated with oil-gas inlets of the two front bearings, a front bearing oil-gas outlet channel is formed in the front bearing seat, and an oil-gas outlet of the front bearing is communicated with the front bearing oil-gas outlet channel.
Preferably, a front bearing pressing plate is fixed to the front end of the front bearing seat, a second oil-gas guide groove is formed in the rear end face of the front bearing pressing plate, and the second oil-gas guide groove is communicated between the front bearing oil-gas outlet channel and an oil-gas outlet of one front bearing.
Preferably, an outer spacer ring and an inner spacer ring are clamped between the two front bearings, the outer spacer ring is sleeved on the outer side of the inner spacer ring, a spacer ring gap is arranged between the outer spacer ring and the inner spacer ring, an oil-gas guide hole is formed in the side portion of the outer spacer ring, and the oil-gas guide hole is communicated between the spacer ring gap and the oil-gas outlet channel of the front bearing.
Preferably, an outer flange is formed on the outer side wall of the inner spacer ring, and a diversion inclined plane is formed on the rear end face of the outer flange.
Preferably, wear to be equipped with the pull rod in the rotor, central gas circuit has been seted up in the pull rod, a plurality of L shape air flues have been seted up in the lateral wall of rotor, the rear end opening orientation of L shape air flue the pull rod, the front end opening of L shape air flue is located the preceding terminal surface of rotor, a plurality of air guide holes have been seted up to the lateral wall of pull rod, the air guide hole with L shape air flue one-to-one, the air guide hole with central gas circuit is linked together, works as when the pull rod impels forward, the air guide hole with the rear end opening of L shape air flue aligns and communicates each other to the front end opening of making a plurality of L shape air flues sprays the air current simultaneously, and then to the handle of a knife conical surface and the terminal surface of rotor front end play the cleaning action.
Preferably, a pull claw assembly is arranged in the front end opening of the rotor, the front end of the pull rod is connected to the pull claw assembly, the front end of the pull claw assembly is used for connecting the cutter handle, a plurality of inner side cleaning air holes are formed in the inner wall of the rotor, the inner side cleaning air holes correspond to the L-shaped air passages one to one, the inner side cleaning air holes are communicated with the L-shaped air passages, and the inner side opening of the inner side cleaning air holes is close to the joint of the pull claw assembly and the cutter handle.
Preferably, the inner cleaning air hole is inclined so that an inner opening of the inner cleaning air hole faces an oblique front direction.
According to the efficient oil-gas lubrication main shaft disclosed by the invention, the two rear bearing oil-gas inlet channels are arranged in the rear bearing seat, oil-gas mixtures can be separately provided for the two rear bearings by utilizing the two rear bearing oil-gas inlet channels, so that the two rear bearings have independent lubrication passages, the oil-gas lubrication effect of the bearings is greatly improved, the lubrication efficiency and the overall performance of the main shaft are greatly improved, meanwhile, the oil-gas mixtures injected into the bearings can be used for cooling the bearings, the cooling capacity of the main shaft is improved along with the cooling capacity, and the operation requirements of high rotating speed and high precision are better met. In addition, the rear bearing part adopts a mechanism with the cooperation of an early warning spring and a steel ball for controlling and adjusting the pre-pressure in real time, and the service life and the running precision of the main shaft can be effectively improved.
Drawings
FIG. 1 is a partial cross-sectional view of a first highly efficient oil and gas lubricated spindle of the present invention;
FIG. 2 is a partial sectional view of the high efficiency oil and gas lubricated spindle of the present invention;
FIG. 3 is a cross-sectional view of the rear bearing assembly;
FIG. 4 is an exploded view of the rear bearing assembly;
FIG. 5 is a perspective view of the rear bearing mount;
FIG. 6 is a cross-sectional view of the rear bearing carrier;
FIG. 7 is a cross-sectional view of the rear bearing sleeve;
FIG. 8 is a block diagram of the rear bearing retainer;
FIG. 9 is a cross-sectional view of the rear bearing retainer;
FIG. 10 is a cross-sectional view of the front bearing assembly;
FIG. 11 is a partial cross-sectional view of the front bearing assembly;
FIG. 12 is a cross-sectional view of the front bearing press plate;
FIG. 13 is a first cross-sectional view of the front bearing block;
FIG. 14 is a second cross-sectional view of the front bearing block;
FIG. 15 is a third cross-sectional view of the front bearing block;
fig. 16 is a partial sectional view of the spindle tip structure.
Detailed Description
The invention is described in more detail below with reference to the figures and examples.
The invention discloses a high-efficiency oil-gas lubrication main shaft, which is shown in a combined figure 1-16 and comprises a steel cylinder 1, wherein a front bearing assembly 2 and a rear bearing assembly 3 are respectively arranged at the front end and the rear end of the steel cylinder 1, a rotor 4 penetrates through the steel cylinder 1, the front end of the rotor 4 penetrates through the front bearing assembly 2, the rear bearing assembly 3 comprises a rear bearing seat sleeve 30, the rear bearing seat sleeve 30 is fixedly connected with the steel cylinder 1, a steel ball sleeve 31 is arranged in the rear bearing seat sleeve 30, a plurality of steel balls 310 distributed in an array form are embedded on the steel balls 31, a rear bearing seat 32 is arranged in the steel ball sleeve 31, two laminated rear bearings 33 are arranged in the rear bearing seat 32, the rear end of the rotor 4 sequentially penetrates through the two rear bearings 33, a plurality of early warning springs 34 are clamped between the front end surface of the rear bearing seat 32 and the rear bearing seat sleeve 30, the rear bearing seat sleeve 30 is fixedly provided with a rear bearing pressing plate 35 at the rear end, the rear bearing pressing plate 35 covers the steel ball sleeve 31, the rear bearing seat 32 and the rear side of the rear bearing 33, the rear bearing 33 is an oil-gas lubrication bearing, the rear end of the rear bearing seat 32 is fixedly provided with two oil inlets 320, two rear bearing oil inlet channels 321 are formed in the rear bearing seat 32, one ends of the two rear bearing oil inlet channels 321 are respectively communicated with the two oil inlets 320, the other ends of the two rear bearing oil inlet channels 321 are respectively communicated with oil-gas inlets of the two rear bearings 33, a rear bearing oil-gas outlet channel 300 is formed in the rear bearing seat sleeve 30, and oil-gas outlets of the two rear bearings 33 are all communicated with the rear bearing oil-gas outlet channel 300.
Among the above-mentioned main shaft two back bearing oil gas inlet channels 321 have been seted up in the back bearing frame 32, utilize two back bearing oil gas inlet channels 321 can provide oil-gas mixture respectively for two back bearings 33 alone, make two back bearings 33 have independent lubrication passage, the oil-gas lubrication effect of bearing has been improved greatly, make the lubricating efficiency and the wholeness ability of main shaft promote by a wide margin, utilize the oil-gas mixture who pours into the bearing simultaneously, can also play cooling effect to the bearing, make the cooling capacity of main shaft promote thereupon, high rotational speed has been satisfied betterly, the operation requirement of high accuracy. In addition, the rear bearing part adopts a mechanism with the cooperation of an early warning spring and a steel ball for controlling and adjusting the pre-pressure in real time, and the service life and the running precision of the main shaft can be effectively improved.
In order to lead out the oil-gas mixture, in this embodiment, a first oil-gas guide groove 301 is formed in the rear bearing sleeve 30, and the first oil-gas guide groove 301 is communicated between the rear bearing oil-gas outlet passage 300 and an oil-gas outlet of the rear bearing 33.
To facilitate communication with the passage in the rear bearing retainer 35, an oil inlet nozzle 322 is fixed to the oil inlet 320 in this embodiment.
The front bearing and the rear bearing are designed to be oil-gas lubrication bearings, and meanwhile, a structure that each bearing independently provides a lubricating liquid channel is adopted for the front bearing assembly, specifically, the front bearing assembly 2 comprises a front bearing seat 20, two front bearings 21 are arranged in the front bearing seat 20, the front end of the rotor 4 sequentially penetrates through the two front bearings 21, the front bearings 21 are oil-gas lubrication bearings, two front bearing oil-gas inlet channels 22 are arranged in the front bearing seat 20, the two front bearing oil-gas inlet channels 22 are respectively communicated with oil-gas inlets of the two front bearings 21, a front bearing oil-gas outlet channel 25 is arranged in the front bearing seat 20, and an oil-gas outlet of the front bearing 21 is communicated with the front bearing oil-gas outlet channel 25.
Further, a front bearing pressing plate 27 is fixed at the front end of the front bearing seat 20, a second oil-gas guide groove 270 is formed in the rear end face of the front bearing pressing plate 27, and the second oil-gas guide groove 270 is communicated between the front bearing oil-gas outlet channel 25 and an oil-gas outlet of one front bearing 21.
This embodiment has adopted the mode that provides the lubricated passageway of oil-gas separately to every front bearing respectively at the front bearing part for every front bearing obtains the oil-gas supply respectively, under oil-gas mixture's effect, has not only realized the front bearing lubrication function, can also cool off the front bearing, thereby further improves main shaft performance.
In order to facilitate oil and gas export, in this embodiment, an outer spacer ring 23 and an inner spacer ring 24 are interposed between the two front bearings 21, the outer spacer ring 23 is sleeved outside the inner spacer ring 24, a spacer ring gap 26 is provided between the outer spacer ring and the inner spacer ring 24, an oil and gas guide hole 230 is provided on a side portion of the outer spacer ring 23, and the oil and gas guide hole 230 is communicated between the spacer ring gap 26 and the front bearing oil and gas outlet channel 25.
Preferably, an outer flange 240 is formed on an outer side wall of the inner spacer 24, and a guide slope 241 is formed on a rear end surface of the outer flange 240.
In this embodiment, a pull rod 5 penetrates through the rotor 4, a central air passage 50 is formed in the pull rod 5, a plurality of L-shaped air passages 40 are formed in the side wall of the rotor 4, the rear end openings of the L-shaped air passages 40 face the pull rod 5, the front end openings of the L-shaped air passages 40 are located on the front end face of the rotor 4, a plurality of air guide holes 51 are formed in the side wall of the pull rod 5, the air guide holes 51 correspond to the L-shaped air passages 40 one by one, the air guide holes 51 are communicated with the central air passage 50, and when the pull rod 5 is pushed forwards, the air guide holes 51 are aligned with and communicated with the rear end openings of the L-shaped air passages 40, so that the front end openings of the L-shaped air passages 40 jet air simultaneously, and further, a cleaning effect is achieved on the knife handle and the end face of the front end of the rotor 4.
In the structure, along with the back-and-forth movement action executed by the pull rod 5, the air seal can be correspondingly formed on the front end surface of the rotor 4, so that the effects of cleaning and preventing dust from entering the main shaft are achieved, the application requirement is better met, and the cleaning effect at the front end of the main shaft is favorably improved.
As a preferable mode, a pull claw assembly 6 is arranged in the front end opening of the rotor 4, the front end of the pull rod 5 is connected to the pull claw assembly 6, the front end of the pull claw assembly 6 is used for connecting the tool shank 7, a plurality of inner side cleaning air holes 41 are formed in the inner wall of the rotor 4, the inner side cleaning air holes 41 correspond to the L-shaped air passages 40 one by one, the inner side cleaning air holes 41 are communicated with the L-shaped air passages 40, and the inner side opening of the inner side cleaning air holes 41 is close to the joint of the pull claw assembly 6 and the tool shank 7.
The function of the inner side cleaning air hole 41 is that when the spindle performs tool unloading and tool changing actions, the pull claw and the tool holder part can be cleaned by utilizing the air flow blown out from the inner side cleaning air hole 41, and meanwhile, because the air flow is blown out outwards, dust, water and the like can be effectively prevented from entering the spindle through the opening at the front end of the rotor 4, so that the cleaning capability of the spindle is greatly improved, and the service life of the spindle is prolonged.
In order to further enhance the cleaning capability, in the present embodiment, the inner side cleaning air holes 41 are inclined, so that the inner side openings of the inner side cleaning air holes 41 face to the inclined front.
Compared with the prior art, the efficient oil-gas lubrication main shaft has the beneficial effects that firstly, each bearing adopts an independent oil-gas lubrication line, so that mutual oil-gas pollution can be effectively prevented, and the front bearing seat and the rear bearing are sleeved in the inner hole of the steel cylinder, so that the mounting coaxiality of the front bearing and the rear bearing is greatly improved, the stability of the main shaft is improved, and the precision of the main shaft is improved; in addition, the air blowing holes are formed in the conical surfaces of the rotor and the pull rod of the spindle, so that the contact surface of the rotor and the tool shank is cleaned, the pull claw part can be effectively cleaned, and the service life and the overall performance of the spindle are improved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents or improvements made within the technical scope of the present invention should be included in the scope of the present invention.
Claims (10)
1. The high-efficiency oil-gas lubrication main shaft is characterized by comprising a steel cylinder (1), wherein a front bearing assembly (2) and a rear bearing assembly (3) are respectively arranged at the front end and the rear end of the steel cylinder (1), a rotor (4) penetrates through the steel cylinder (1), the front end of the rotor (4) penetrates through the front bearing assembly (2), the rear bearing assembly (3) comprises a rear bearing seat sleeve (30), the rear bearing seat sleeve (30) is fixedly connected with the steel cylinder (1), a steel ball sleeve (31) is arranged in the rear bearing seat sleeve (30), a plurality of steel balls (310) distributed in an array form are embedded in the steel ball sleeve (31), a rear bearing seat (32) is arranged in the steel ball sleeve (31), two laminated rear bearings (33) are arranged in the rear bearing seat (32), and the rear end of the rotor (4) sequentially penetrates through the two rear bearings (33), a plurality of early warning springs (34) are clamped between the front end face of the rear bearing seat (32) and the rear bearing seat sleeve (30), the early warning springs (34) are evenly distributed along the circumferential direction of the rear bearing seat (32), a rear bearing pressing plate (35) is fixed at the rear end of the rear bearing seat sleeve (30), the rear bearing pressing plate (35) covers the steel ball sleeve (31), the rear bearing seat (32) and the rear side of the rear bearing (33), the rear bearing (33) is an oil-gas lubrication bearing, two oil inlets (320) are fixed at the rear end of the rear bearing seat (32), two rear bearing oil inlet channels (321) are arranged in the rear bearing seat (32), one ends of the two rear bearing oil inlet channels (321) are respectively communicated with the two oil inlets (320), and the other ends of the two rear bearing oil inlet channels (321) are respectively communicated with oil-gas inlets of the two rear bearings (33), and a rear bearing oil-gas outlet channel (300) is formed in the rear bearing sleeve (30), and oil-gas outlets of the two rear bearings (33) are communicated with the rear bearing oil-gas outlet channel (300).
2. The high-efficiency oil-gas lubrication main shaft according to claim 1, wherein a first oil-gas guide groove (301) is formed in the rear bearing sleeve (30), and the first oil-gas guide groove (301) is communicated between the rear bearing oil-gas outlet channel (300) and an oil-gas outlet of the rear bearing (33).
3. The efficient oil-air lubrication main shaft as claimed in claim 1, wherein an oil inlet nozzle (322) is fixed to the oil inlet (320).
4. The efficient oil-gas lubrication main shaft according to claim 1, wherein the front bearing assembly (2) comprises a front bearing seat (20), two front bearings (21) are arranged in the front bearing seat (20), the front end of the rotor (4) sequentially penetrates through the two front bearings (21), the front bearings (21) are oil-gas lubrication bearings, two front bearing oil-gas inlet channels (22) are formed in the front bearing seat (20), the two front bearing oil-gas inlet channels (22) are respectively communicated with oil-gas inlets of the two front bearings (21), a front bearing oil-gas outlet channel (25) is formed in the front bearing seat (20), and oil-gas outlets of the front bearings (21) are communicated with the front bearing oil-gas outlet channel (25).
5. The efficient oil-gas lubrication main shaft according to claim 4, wherein a front bearing pressing plate (27) is fixed to the front end of the front bearing seat (20), a second oil-gas guide groove (270) is formed in the rear end face of the front bearing pressing plate (27), and the second oil-gas guide groove (270) is communicated between the front bearing oil-gas outlet channel (25) and an oil-gas outlet of one front bearing (21).
6. The efficient oil-gas lubrication main shaft according to claim 5, wherein an outer spacer ring (23) and an inner spacer ring (24) are clamped between the two front bearings (21), the outer spacer ring (23) is sleeved outside the inner spacer ring (24), a spacer ring gap (26) is arranged between the outer spacer ring and the inner spacer ring (24), an oil-gas guide hole (230) is formed in the side portion of the outer spacer ring (23), and the oil-gas guide hole (230) is communicated between the spacer ring gap (26) and the front bearing oil-gas outlet channel (25).
7. A high-efficiency oil-gas lubrication main shaft as recited in claim 6, characterized in that an outer flange (240) is formed on the outer side wall of the inner spacer ring (24), and a diversion bevel (241) is formed on the rear end face of the outer flange (240).
8. The efficient oil-gas lubrication main shaft according to claim 4, wherein a pull rod (5) penetrates through the rotor (4), a central gas path (50) is formed in the pull rod (5), a plurality of L-shaped gas passages (40) are formed in the side wall of the rotor (4), the rear end openings of the L-shaped gas passages (40) face the pull rod (5), the front end openings of the L-shaped gas passages (40) are located on the front end face of the rotor (4), a plurality of gas guide holes (51) are formed in the side wall of the pull rod (5), the gas guide holes (51) correspond to the L-shaped gas passages (40) one by one, the gas guide holes (51) are communicated with the central gas path (50), and when the pull rod (5) is pushed forwards, the gas guide holes (51) are aligned with the rear end openings of the L-shaped gas passages (40) and are communicated with each other, so that the front end openings of the plurality of the L-shaped gas passages (40) can jet gas flow simultaneously, and further cleaning the conical surface and the end surface of the tool holder at the front end of the rotor (4).
9. The efficient oil-gas lubrication main shaft according to claim 8, wherein a pull claw assembly (6) is arranged in a front end opening of the rotor (4), the front end of the pull rod (5) is connected to the pull claw assembly (6), the front end of the pull claw assembly (6) is used for being connected with the tool shank (7), a plurality of inner side cleaning air holes (41) are formed in the inner wall of the rotor (4), the inner side cleaning air holes (41) correspond to the L-shaped air passages (40) in a one-to-one mode, the inner side cleaning air holes (41) are communicated with the L-shaped air passages (40), and the inner side opening of the inner side cleaning air holes (41) is close to the connection position of the pull claw assembly (6) and the tool shank (7).
10. The highly efficient air-oil lubricated spindle according to claim 9, wherein the inner cleaning air hole (41) is inclined so that an inner opening of the inner cleaning air hole (41) faces obliquely forward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011066887.6A CN112059214A (en) | 2020-10-03 | 2020-10-03 | High-efficient oil-gas lubrication main shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011066887.6A CN112059214A (en) | 2020-10-03 | 2020-10-03 | High-efficient oil-gas lubrication main shaft |
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| Publication Number | Publication Date |
|---|---|
| CN112059214A true CN112059214A (en) | 2020-12-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011066887.6A Pending CN112059214A (en) | 2020-10-03 | 2020-10-03 | High-efficient oil-gas lubrication main shaft |
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| CN (1) | CN112059214A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112792363A (en) * | 2021-01-18 | 2021-05-14 | 广州市昊志机电股份有限公司 | Electric spindle and machine tool |
| CN113357271A (en) * | 2021-06-25 | 2021-09-07 | 珠海格力电器股份有限公司 | Electric spindle structure and processing equipment |
-
2020
- 2020-10-03 CN CN202011066887.6A patent/CN112059214A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112792363A (en) * | 2021-01-18 | 2021-05-14 | 广州市昊志机电股份有限公司 | Electric spindle and machine tool |
| WO2022151617A1 (en) * | 2021-01-18 | 2022-07-21 | 广州市昊志机电股份有限公司 | Motor spindle and machine tool |
| CN113357271A (en) * | 2021-06-25 | 2021-09-07 | 珠海格力电器股份有限公司 | Electric spindle structure and processing equipment |
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