CN217596792U

CN217596792U - Direct-connected accurate lubricated type hybrid spindle

Info

Publication number: CN217596792U
Application number: CN202221925391.4U
Authority: CN
Inventors: 杜加帮
Original assignee: Hangzhou Hangkun Electromechanical Equipment Co ltd
Current assignee: Hangzhou Hangkun Electromechanical Equipment Co ltd
Priority date: 2022-07-25
Filing date: 2022-07-25
Publication date: 2022-10-18
Anticipated expiration: 2032-07-25

Abstract

The utility model discloses an accurate lubricated type hybrid main shaft of direct-connected type belongs to hybrid main shaft technical field, including the shell, its characterized in that: outer shell one end sets up the motor, the inside inner shell that sets up of shell, motor one end is kept away from to the inner shell sets up the front end housing, the inner shell is close to motor one end and sets up the rear end cap, the inner shell intermediate position sets up the main shaft, the main shaft is close to motor one end and runs through the rear end cap and be connected with the motor, the main shaft is kept away from motor one end and is run through the front end housing, the position that the main shaft is close to the front end housing sets up the shrouding, the shrouding is as an organic whole with the main shaft, the position that is close to the rear end cap of main shaft periphery is close to, initiative hydrostatic bearing is connected with the inner shell, initiative hydrostatic bearing's length is greater than the diameter of the thickest position of main shaft, the main shaft is close to front end housing one end and sets up the chuck, the utility model discloses make the main shaft be steadily supported all the time, initiative hydrostatic bearing and main shaft are lasted, stable, accurate lubrication, the leakproofness has effectively guaranteed simultaneously.

Description

Direct-connected accurate lubrication type hybrid spindle

Technical Field

The utility model relates to a hybrid main shaft technical field specifically is a direct-connected accurate lubricated type hybrid main shaft.

Background

In the industrial production activity, especially in the production scene that relates to the numerically controlled grinder, the static and dynamic pressure main shaft is indispensable production instrument, for cooperating the high accuracy of numerically controlled grinder, efficient production mode, the static and dynamic pressure main shaft need possess sufficient stability to guarantee the rotation accuracy, the assurance of stability needs to satisfy two factors: the support to the main shaft needs to be ensured stably, the lubrication to the main shaft needs to be ensured stably, and meanwhile, the leakage of lubricating oil and the condition that the production operation cannot be normally carried out due to the leakage need to be avoided.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides an accurate lubricated type hybrid spindle of direct-connected type.

The utility model provides an accurate lubricated type hybrid main shaft of direct-connected type, includes the shell, its characterized in that: the improved motor is characterized in that a motor is arranged at one end of the outer shell, an inner shell is arranged inside the outer shell, the inner shell is far away from one end of the motor and is provided with a front end cover, the inner shell is close to one end of the motor and is provided with a rear end cover, a main shaft is arranged in the middle of the inner shell and is close to one end of the motor, the rear end cover is penetrated through the rear end cover and is connected with the motor, the main shaft is far away from one end of the motor and is provided with a sealing plate, the sealing plate and the main shaft are of an integral structure, the periphery of the main shaft is close to the position of the sealing plate and the position of the rear end cover, an active hydrostatic bearing is arranged on the outer periphery of the main shaft, the active hydrostatic bearing is connected with the inner shell, the length of the active hydrostatic bearing is larger than the diameter of the thickest position of the main shaft, and the main shaft is close to one end of the front end cover and is provided with a chuck.

Furthermore, the periphery of the main shaft and the position corresponding to the front end cover are provided with auxiliary dynamic and static pressure bearings, the auxiliary dynamic and static pressure bearings are connected with the front end cover, and the auxiliary dynamic and static pressure bearings are attached to the sealing plate.

Furthermore, an oil cavity is arranged inside the inner shell, the oil cavity is parallel to the main shaft, an oil inlet hole is formed in the position, close to the front end cover, of the inner shell, the oil inlet hole is communicated with the oil cavity and the outer space of the inner shell, an oil outlet hole is formed in the position, corresponding to the active hydrostatic bearing, of the inner shell, and the oil outlet hole is communicated with the oil cavity and the inner space of the inner shell.

Furthermore, the initiative hydrostatic bearing with the oil outlet corresponds the position and sets up the buffer memory groove, buffer memory groove intermediate position sets up the oil filler point, the oil filler point runs through initiative hydrostatic bearing.

Furthermore, the active hydrostatic bearing close to the sealing plate is attached to the sealing plate, an oil seal is arranged on the inner side of the rear end cover in the radial direction, and the oil seal is tightly attached to the main shaft and the rear end cover.

Furthermore, the front end housing is close to chuck one side sets up the safety cover, the safety cover with the front end housing is connected, the chuck is close to front end housing one side sets up the recess, the safety cover is close to chuck one side stretches into inside the recess.

The utility model discloses a beneficial effect of accurate lubricated type hybrid main shaft of direct-connected type does:

1. the main shaft is supported by a common ball bearing compared with the traditional dynamic and static pressure main shaft, so that the main shaft of the dynamic and static pressure main shaft is always stably supported, and the working precision is effectively ensured;

2. the oil inlet hole, the oil cavity, the oil outlet hole, the buffer storage groove and the oil injection hole effectively guarantee continuous, stable and accurate oil supply to a gap between the active hydrostatic bearing and the main shaft, so that continuous, stable and accurate lubrication to the active hydrostatic bearing and the main shaft is effectively guaranteed, and meanwhile, a good structural foundation is provided for avoiding leakage of lubricating oil;

3. the auxiliary dynamic and static pressure bearing is attached to the sealing plate, and the active static pressure bearing close to the sealing plate is attached to the sealing plate, so that the leakage of lubricating oil at the position of a front end cover is effectively avoided, the leakage of the lubricating oil at the position of a rear end cover is effectively avoided through oil sealing, and the integral sealing performance of the active static pressure main shaft is effectively ensured;

4. the protective cover extends into the groove of the chuck, so that impurities such as dust in the external environment are effectively prevented from entering the dynamic static pressure main shaft, and the service life of the dynamic static pressure main shaft is effectively guaranteed;

on the basis that the main shaft is stably supported all the time, the active hydrostatic bearing and the main shaft are continuously, stably and accurately lubricated, and the sealing performance is effectively ensured, the active hydrostatic bearing can be matched with the numerical control grinding machine, and the production operation can be completed with high precision and high efficiency.

Drawings

In order to illustrate the embodiments of the present invention or the technical solutions in the prior art more clearly, the drawings used in the description of the embodiments or the prior art will be briefly described below, but the protection scope of the present invention is not limited thereto.

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a partially enlarged view of C in fig. 1.

The hydraulic oil-filling device comprises an outer shell, an inner shell, an oil cavity, an oil outlet, an oil inlet, a sealing plate, a protective cover, a chuck, a secondary dynamic and static pressure bearing, a front end cover, a driving static pressure bearing, an oil seal, a motor, a main shaft, a rear end cover, an oil filling hole and a buffer storage groove, wherein the outer shell is 1-arranged, the inner shell is 2-arranged, the oil cavity is 3-arranged, the oil outlet is 4-arranged, the oil inlet is 5-arranged, the sealing plate is 6-arranged, the protective cover is 7-arranged, the chuck is 8-arranged, the secondary dynamic and static pressure bearing is 9-arranged, the front end cover is 10-arranged, the driving static pressure bearing is 11-arranged, the oil seal is 12-arranged, the motor is 13-arranged, the main shaft is 14-arranged, the rear end cover is 15-arranged, the oil filling hole is 16-arranged, and the buffer storage groove is 17-arranged.

Detailed Description

For the sake of clarity, the direct connection type precise lubrication type hybrid spindle of the present invention is further described with reference to fig. 1 to 2 of the drawings attached to the specification.

The utility model provides an accurate lubricated type hybrid main shaft of direct-connected type, includes shell 1, its characterized in that: the improved structure of the motor-driven hydrostatic bearing is characterized in that a motor 13 is arranged at one end of an outer shell 1, an inner shell 2 is arranged in the outer shell 1, a front end cover 10 is arranged at one end, far away from the motor 13, of the inner shell 2, a rear end cover 15 is arranged at one end, close to the motor 13, of the inner shell 2, a main shaft 14 is arranged at the middle position of the inner shell 2, one end, close to the motor 13, of the main shaft 14 penetrates through the rear end cover 15 and is connected with the motor 13, a sealing plate 6 is arranged at the position, close to the front end cover 10, of the main shaft 14, the sealing plate 6 and the main shaft 14 are of an integral structure, an active hydrostatic bearing 11 is arranged at the position, close to the sealing plate 6, at the position, close to the rear end cover 15, of the main shaft 14, the active hydrostatic bearing 11 is connected with the inner shell 2, the length of the active hydrostatic bearing 11 is larger than the diameter of the thickest position of the main shaft 14, and a chuck 8 is arranged at one end, close to the front end cover 10.

Further, an auxiliary hybrid bearing 9 is arranged at the periphery of the main shaft 14 and corresponds to the front end cover 10, the auxiliary hybrid bearing 9 is connected with the front end cover 10, and the auxiliary hybrid bearing 9 is attached to the sealing plate 6.

Further, an oil cavity 3 is arranged inside the inner shell 2, the oil cavity 3 is parallel to the main shaft 14, an oil inlet hole 5 is arranged at a position, close to the front end cover 10, of the inner shell 2, the oil inlet hole 5 is communicated with the oil cavity 3 and the outer space of the inner shell 2, an oil outlet hole 4 is arranged at a position, corresponding to the active hydrostatic bearing 11, of the inner shell 2, and the oil outlet hole 4 is communicated with the oil cavity 3 and the inner space of the inner shell 2.

Furthermore, the active hydrostatic bearing 11 and the oil outlet 4 are provided with a buffer tank 17 at a corresponding position, an oil hole 16 is arranged in the middle of the buffer tank 17, and the oil hole 16 penetrates through the active hydrostatic bearing 11.

Further, the active hydrostatic bearing 11 close to the seal plate 6 is attached to the seal plate 6, an oil seal 12 is arranged on the inner side of the rear end cover 15 in the radial direction, and the oil seal 12 is closely attached to the main shaft 14 and the rear end cover 15.

Furthermore, the front end cover 10 is close to a protective cover 7 is arranged on one side of the chuck 8, the protective cover 7 is connected with the front end cover 10, the chuck 8 is close to a groove is formed in one side of the front end cover 10, and the protective cover 7 is close to a groove extending into one side of the chuck 8.

The utility model discloses a direct-connected type accurate lubrication type hybrid main shaft's theory of operation does: the dynamic and static pressure main shaft is integrally installed at an installation position through a shell 1, a grinding wheel with a required specification is selected, the grinding wheel is fixed at the grinding wheel installation position on a chuck 8, a motor 13 is started, the motor 13 drives the main shaft 14 and the grinding wheel to synchronously rotate and carry out related production operation, in the process, a driving static pressure bearing 11 and an auxiliary static pressure bearing 9 always ensure the rotation stability of the main shaft 14, an upper oil supply device continuously supplies oil to a gap between the driving static pressure bearing 11 and the main shaft 14 through an oil path of an oil inlet 5-an oil cavity 3-an oil outlet 4-a buffer storage groove 17-an oil inlet 16', so that the driving static pressure bearing 11 and the main shaft 14 are continuously, stably and accurately lubricated, the oil cavity 3 and the buffer storage groove 17 perform double buffering on the lubricating oil, further guarantee is provided for the stability of the lubricating position, on the basis, the auxiliary static pressure bearing 9 is attached to a sealing plate 6, the driving static pressure bearing 11 close to the sealing plate 6 is attached to the sealing plate 6, the lubricating oil cannot leak at the position of a front end cover 10, and the oil seal 12 cannot leak at the position of a rear end cover 15.

The above is only the specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the creative work should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.

Claims

1. The utility model provides an accurate lubricated type hybrid main shaft of direct-connected type, includes the shell, its characterized in that: the improved motor is characterized in that a motor is arranged at one end of the outer shell, an inner shell is arranged inside the outer shell, the inner shell is far away from one end of the motor and is provided with a front end cover, the inner shell is close to one end of the motor and is provided with a rear end cover, a main shaft is arranged in the middle of the inner shell and is close to one end of the motor, the rear end cover is penetrated through the rear end cover and is connected with the motor, the main shaft is far away from one end of the motor and is provided with a sealing plate, the sealing plate and the main shaft are of an integral structure, the periphery of the main shaft is close to the position of the sealing plate and the position of the rear end cover, an active hydrostatic bearing is arranged on the outer periphery of the main shaft, the active hydrostatic bearing is connected with the inner shell, the length of the active hydrostatic bearing is larger than the diameter of the thickest position of the main shaft, and the main shaft is close to one end of the front end cover and is provided with a chuck.

2. The direct-connected precise lubrication type hybrid spindle according to claim 1, wherein an auxiliary hybrid bearing is arranged at the periphery of the spindle and corresponds to the front end cover, the auxiliary hybrid bearing is connected with the front end cover, and the auxiliary hybrid bearing is attached to the sealing plate.

3. The direct-connected precise lubrication type hybrid spindle according to claim 1, wherein an oil chamber is arranged inside the inner shell, the oil chamber is parallel to the spindle, an oil inlet is arranged at a position of the inner shell close to the front end cover, the oil inlet is communicated with the oil chamber and an external space of the inner shell, an oil outlet is arranged at a position of the inner shell corresponding to the active hydrostatic bearing, and the oil outlet is communicated with the oil chamber and an internal space of the inner shell.

4. The direct-connected precise lubrication type hybrid spindle according to claim 3, wherein a buffer groove is formed in a position of the active hydrostatic bearing corresponding to the oil outlet, an oil filling hole is formed in the middle of the buffer groove, and the oil filling hole penetrates through the active hydrostatic bearing.

5. The direct-connected precise lubricating type hybrid spindle according to claim 1, wherein the active hydrostatic bearing close to the sealing plate is attached to the sealing plate, an oil seal is arranged on the inner side of the rear end cover in the radial direction, and the oil seal is tightly attached to the spindle and the rear end cover.

6. The direct-connected precise lubrication type hybrid spindle according to claim 1, wherein a protective cover is arranged on one side, close to the chuck, of the front end cover, the protective cover is connected with the front end cover, a groove is arranged on one side, close to the front end cover, of the chuck, and the protective cover extends into the groove.