CN213808500U

CN213808500U - High-precision static pressure spindle

Info

Publication number: CN213808500U
Application number: CN202022661557.3U
Authority: CN
Inventors: 陈铮; 郑良钢; 孙奇; 周志科
Original assignee: Jiangsu Lingchen Precision Machinery Co Ltd
Current assignee: Jiangsu Lingchen Precision Machinery Co Ltd
Priority date: 2020-11-17
Filing date: 2020-11-17
Publication date: 2021-07-27
Anticipated expiration: 2030-11-17

Abstract

The utility model belongs to the hydrostatic bearing field, concretely relates to high accuracy static electricity main shaft, including the axle sleeve, the outside joint of axle sleeve has sealed lid, the inside rotation of sealed lid is connected with the hydrostatic shaft, the spread groove has been seted up on the sealed lid, the inside of spread groove is provided with spring one, the inside sliding connection of spread groove has the fixture block, the draw-in groove has been seted up on the axle sleeve, the outside of fixture block with the inboard joint of draw-in groove, the upper end fixedly connected with of fixture block presses the briquetting, the upper end of spring one with the lower extreme contact of fixture block. The utility model discloses an add in the inside of sealed lid and establish spring one, fixture block and press the briquetting isotructure, change the bolted connection originally into the joint formula, under the prerequisite of guaranteeing original canned type, can be through can accomplish the dismantlement to sealed lid with fixture block and draw-in groove separation, reduced the time of dismantling and installing to can increase work efficiency.

Description

High-precision static pressure spindle

Technical Field

The utility model relates to a hydrostatic bearing technical field specifically is a high accuracy static electricity main shaft.

Background

The hydrostatic bearing means: the sliding bearing is supplied with pressure oil from the outside, and a static pressure bearing oil film is established in the bearing to realize liquid lubrication. The hydrostatic bearing works under liquid lubrication from start to stop, so that the hydrostatic bearing has no abrasion, long service life and small starting power, and can be applied at an extremely low (even zero) speed. In addition, the bearing has the advantages of high rotation precision, high oil film rigidity, capability of inhibiting oil film oscillation and the like, but a special oil tank is required to supply pressure oil, and the power consumption is large at high speed.

High accuracy static pressure main shaft among the prior art when using, the precision requirement to processing is high, so need often clear up the inside of axle sleeve when daily use, but need dismantle a large amount of screws when the clearance, dismantle the process waste time, influence work efficiency, still need dismantle the connecting block in the static pressure off-axial side at the in-process of dismantling sealed lid, the connecting block has enough big stress range with the static pressure axle for guaranteeing, so its connection structure dismantles very loaded down with trivial details. Accordingly, there is a need for improvements in the art.

Disclosure of Invention

An object of the utility model is to provide a high accuracy static pressure main shaft has solved the sealed lid of static pressure axle and the problem of the not convenient to detach of connecting block.

In order to achieve the above object, the utility model provides a following technical scheme: a high-precision static pressure spindle comprises a spindle sleeve, wherein a sealing cover is clamped on the outer side of the spindle sleeve, a static pressure shaft is rotatably connected inside the sealing cover, a connecting groove is formed in the sealing cover, a first spring is arranged inside the connecting groove, a clamping block is slidably connected inside the connecting groove, a clamping groove is formed in the spindle sleeve, the outer side of the clamping block is clamped with the inner side of the clamping groove, a pressing block is fixedly connected to the upper end of the clamping block, the upper end of the first spring is in contact with the lower end of the clamping block, the lower end of the first spring is fixedly connected with the inside of the connecting groove, a connecting block is sleeved on the outer side of the left end of the static pressure shaft, a motor shaft is welded at the left end of the connecting block, a fixed rod is slidably connected inside the connecting block, the fixed rod penetrates through the static pressure shaft, and a fixed plate is fixedly connected to the lower end of the fixed rod, the fixing rod is provided with a fixing groove, a second spring is arranged inside the fixing groove, a telescopic rod is connected inside the fixing groove in a sliding mode, and a stop block is fixedly connected to the left end of the telescopic rod.

Preferably, a first limiting ring is fixedly connected to the inside of the connecting groove, and the inside of the first limiting ring is slidably connected with the outer side of the pressing block.

Preferably, the inside of the fixing groove is fixedly connected with a second limiting ring, and the inside of the second limiting ring is connected with the outer side of the telescopic rod in a sliding mode.

Preferably, the left end of the second spring is fixedly connected with the right end of the telescopic rod, and the right end of the second spring is fixedly connected with the inner side of the fixing groove.

Preferably, the inside fixedly connected with defeated oil pipe of axle sleeve, the lower extreme fixedly connected with festival hydraulic fluid port of defeated oil pipe.

Preferably, a sealing gasket is bonded on the inner side of the sealing cover, and the inner side of the sealing gasket is in contact connection with the outer side of the shaft sleeve.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses an add in the inside of sealed lid and establish spring one, fixture block and press the briquetting isotructure, change the bolted connection originally into the joint formula, under the prerequisite of guaranteeing original canned type, can be through can accomplish the dismantlement to sealed lid with fixture block and draw-in groove separation, reduced the time of dismantling and installing to can increase work efficiency.

2. The utility model discloses a pass a dead lever in the inside of connecting block and static pressure axle for can omit a plurality of bolted connection structures originally under the prerequisite of guaranteeing joint strength, can save installation time when overhauing, thereby can improve work efficiency.

Drawings

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

fig. 2 is a top view of the securing lever of fig. 1 of the present invention;

fig. 3 is an enlarged view of the structure of part a of fig. 1 according to the present invention;

fig. 4 is an enlarged view of the structure of the part B of fig. 1 according to the present invention.

In the figure: 1. a shaft sleeve; 2. a sealing cover; 3. a hydrostatic shaft; 4. a gasket; 5. connecting grooves; 6. a first spring; 7. a clamping block; 8. a pressing block; 9. a first limiting ring; 10. a card slot; 11. connecting blocks; 12. a motor shaft; 13. fixing the rod; 14. a fixing sheet; 15. fixing grooves; 16. a second spring; 17. a telescopic rod; 18. a stopper; 19. a second limiting ring; 20. an oil delivery pipe; 21. an oil saving opening.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

Referring to fig. 1-4, a high-precision static pressure spindle comprises a shaft sleeve 1, a sealing cover 2 is clamped on the outer side of the shaft sleeve 1, a static pressure shaft 3 is rotatably connected inside the sealing cover 2, a connecting groove 5 is formed in the sealing cover 2, a first spring 6 is arranged inside the connecting groove 5, a clamping block 7 is slidably connected inside the connecting groove 5, a clamping groove 10 is formed in the shaft sleeve 1, the outer side of the clamping block 7 is clamped with the inner side of the clamping groove 10, a pressing block 8 is fixedly connected to the upper end of the clamping block 7, the upper end of the first spring 6 is in contact with the lower end of the clamping block 7, the lower end of the first spring 6 is fixedly connected with the inside of the connecting groove 5, a connecting block 11 is sleeved on the outer side of the left end of the static pressure shaft 3, a motor shaft 12 is welded to the left end of the connecting block 11, a fixing rod 13 is slidably connected to the inside of the connecting block 11, the fixing rod 13 passes through the static pressure shaft 3, and a fixing plate 14 is fixedly connected to the lower end of the fixing rod 13, the fixing rod 13 is provided with a fixing groove 15, a second spring 16 is arranged inside the fixing groove 15, a telescopic rod 17 is connected inside the fixing groove 15 in a sliding mode, and a stop block 18 is fixedly connected to the left end of the telescopic rod 17.

Referring to fig. 4, the inside of the connecting groove 5 is fixedly connected with a first limiting ring 9, the inside of the first limiting ring 9 is slidably connected with the outside of the pressing block 8, and the first limiting ring 9 can prevent the pressing block 8 from sliding out of the inside of the connecting groove 5.

Referring to fig. 3, a second limit ring 19 is fixedly connected to the inside of the fixing groove 15, the inside of the second limit ring 19 is slidably connected to the outside of the telescopic rod 17, and the second limit ring 19 can prevent the telescopic rod 17 from sliding out of the fixing groove 15.

Referring to fig. 3, the left end of the second spring 16 is fixedly connected to the right end of the telescopic rod 17, the right end of the second spring 16 is fixedly connected to the inner side of the fixing groove 15, and the second spring 16 can keep the stopper 18 outside the fixing rod 13 at any time.

Referring to fig. 1, an oil delivery pipe 20 is fixedly connected inside a shaft sleeve 1, an oil saving port 21 is fixedly connected to the lower end of the oil delivery pipe 20, and the oil saving port 21 can save the amount of oil flowing out, and belongs to the prior art.

Referring to fig. 1, a sealing gasket 4 is adhered to the inner side of the sealing cover 2, the inner side of the sealing gasket 4 is in contact connection with the outer side of the shaft sleeve 1, and the sealing gasket 4 can prevent oil inside the shaft sleeve 1 from leaking.

The utility model discloses the concrete implementation process as follows: when the interior of the shaft sleeve 1 needs to be cleaned, the pressing block 8 can be pressed, the pressing block 8 pushes the fixture block 7 to move downwards, so that the fixture block 7 is separated from the clamping groove 10, then the sealing cover 2 can be detached, the interior of the shaft sleeve 1 is cleaned, after the cleaning is finished, the fixture block 7 is aligned to the clamping groove 10, then the fixture block 7 is tightly pressed to the interior of the clamping groove 10, the fixture block 7 is clamped with the clamping groove 10 under the pushing of the first spring 6, when the connecting block 11 needs to be disassembled, the stop block 18 can be pushed, so that the stop block 18 pushes the telescopic rod 17 to move towards the inside of the fixing groove 15, when the stop block 18 moves into the inside of the fixing rod 13, the fixing rod 13 can be drawn out from the inside of the connecting block 11, after the maintenance is finished, the fixing rod 13 can be inserted into the inside of the connecting block 11 again, and the stop block 18 fixes the fixing rod 13 in the inside of the connecting block 11 under the pushing of the second spring 16.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a high accuracy static electricity main shaft, includes axle sleeve (1), its characterized in that: the outer side of the shaft sleeve (1) is connected with a sealing cover (2) in a clamping manner, the inner part of the sealing cover (2) is rotatably connected with a static pressure shaft (3), the sealing cover (2) is provided with a connecting groove (5), a first spring (6) is arranged in the connecting groove (5), a clamping block (7) is slidably connected in the connecting groove (5), the shaft sleeve (1) is provided with a clamping groove (10), the outer side of the clamping block (7) is connected with the inner side of the clamping groove (10) in a clamping manner, the upper end of the clamping block (7) is fixedly connected with a pressing block (8), the upper end of the first spring (6) is contacted with the lower end of the clamping block (7), the lower end of the first spring (6) is fixedly connected with the inner part of the connecting groove (5), the outer side of the left end of the static pressure shaft (3) is sleeved with a connecting block (11), and the left end of the connecting block (11) is welded with a motor shaft (12), the inside sliding connection of connecting block (11) has dead lever (13), dead lever (13) are followed pass in static pressure axle (3), the lower extreme fixedly connected with stationary blade (14) of dead lever (13), fixed slot (15) have been seted up on dead lever (13), the inside of fixed slot (15) is provided with spring two (16), the inside sliding connection of fixed slot (15) has telescopic link (17), the left end fixedly connected with dog (18) of telescopic link (17).

2. A high precision electrostatic spindle according to claim 1, characterized in that: the inside fixedly connected with spacing ring one (9) of spread groove (5), the inside of spacing ring one (9) with press the outside sliding connection of piece (8).

3. A high precision electrostatic spindle according to claim 1, characterized in that: the inside fixedly connected with spacing ring two (19) of fixed slot (15), the inside of spacing ring two (19) with the outside sliding connection of telescopic link (17).

4. A high precision electrostatic spindle according to claim 1, characterized in that: the left end of the second spring (16) is fixedly connected with the right end of the telescopic rod (17), and the right end of the second spring (16) is fixedly connected with the inner side of the fixing groove (15).

5. A high precision electrostatic spindle according to claim 1, characterized in that: the oil delivery pipe (20) is fixedly connected to the inner portion of the shaft sleeve (1), and an oil saving opening (21) is fixedly connected to the lower end of the oil delivery pipe (20).

6. A high precision electrostatic spindle according to claim 1, characterized in that: the inner side of the sealing cover (2) is bonded with a sealing gasket (4), and the inner side of the sealing gasket (4) is in contact connection with the outer side of the shaft sleeve (1).