CN210548148U - Rotary joint capable of increasing stability - Google Patents
Rotary joint capable of increasing stability Download PDFInfo
- Publication number
- CN210548148U CN210548148U CN201921192680.6U CN201921192680U CN210548148U CN 210548148 U CN210548148 U CN 210548148U CN 201921192680 U CN201921192680 U CN 201921192680U CN 210548148 U CN210548148 U CN 210548148U
- Authority
- CN
- China
- Prior art keywords
- gland
- spacing
- friction ring
- back locking
- rotation axis
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 210000004907 gland Anatomy 0.000 claims abstract description 67
- 238000005266 casting Methods 0.000 claims abstract description 8
- 238000007789 sealing Methods 0.000 claims description 7
- 230000001360 synchronised effect Effects 0.000 claims description 2
- 230000007774 longterm Effects 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 230000013011 mating Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 239000000110 cooling liquid Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000003570 air Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
Images
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- Sealing Devices (AREA)
Abstract
The utility model relates to a rotary joint of multiplicable stability in deep hole drill lathe accessory field, including preceding axis of rotation, back locking shaft and axle sleeve, the axle sleeve includes preceding gland, spacing gland and back gland, preceding gland fixed connection is in the front end of spacing gland, the front end of preceding gland is equipped with and outwards extends and is used for pairing the positioning disk of fixing to on the spindle drum foundry goods, back gland fixed connection is in the rear end of spacing gland, the front end of back locking shaft is equipped with spacing disc, the center of spacing gland is equipped with spacing inner ring, the inner diameter of spacing inner ring is less than the external diameter of spacing disc. The front gland is additionally arranged, the positioning disc of the front gland can be fixed to the main shaft seat casting in a matched mode during use, the overall stability can be improved after the front gland is fixed to the main shaft seat casting through locking, the rear stop shaft can be limited to move forwards through the additionally arranged limiting gland, the rear friction ring can be prevented from being damaged due to long-term contact with the front friction ring in rotation, and therefore the service life of the rear friction ring and the service life of the front friction ring can be prolonged.
Description
Technical Field
The utility model relates to a deep hole bores lathe accessory field, concretely relates to rotary joint of multiplicable stability.
Background
The deep hole drill is a drill bit specially used for processing deep holes and can be divided into an outer chip removal type and an inner chip removal type. The biggest disadvantage of deep drilling is the difficulty in heat dissipation and chip removal. The rotary joint is a common part of a deep hole drill, and for example, when a main shaft of a machining center needs to be cooled or blown, the rotary joint is needed. The spindle rotary joint is a high-precision rotary joint used for introducing air, cooling liquid and hydraulic oil and rotating equipment at high speed.
Rotary joint includes casing, rotation axis and locking axle, and the rotation axis is connected with the main shaft, and the main shaft drives and places the axle and carry out synchronous rotation, and rotary joint on the existing market still has following defect: 1) the rotating shaft of the rotating joint is directly connected with the rear end of the main shaft through a screw, other supporting structures are not provided, the stability is poor after the rotating joint is installed, and the rotating joint is easy to shake particularly in a high-speed rotating process; 2) in the working process, the friction ring of the rotating shaft is in friction type contact with the friction ring of the stop shaft, the stop shaft is pressed to continuously move forwards, and the friction ring is easy to wear in the long-term forward moving process, so that the worn friction ring needs to be frequently replaced; 3) the rotating shaft is supported by the bearing, the bearing is easy to damage after long-term rotation, and the noise is large.
Disclosure of Invention
The utility model aims at solving the above defect, providing the rotary joint of multiplicable stability, it locks with the spindle drum foundry goods to multiplicable overall stability.
The utility model aims at realizing through the following mode:
a rotary joint capable of increasing stability comprises a front rotary shaft, a rear stop shaft and a shaft sleeve, wherein the front end of the front rotary shaft is used for being connected with a main shaft, the front rotary shaft is driven to synchronously rotate when the main shaft rotates, the rear end of the front rotary shaft is provided with a front friction ring, the rear stop shaft is positioned behind the front rotary shaft, the front end of the rear stop shaft is provided with a rear friction ring in matched contact with the front friction ring, the centers of the front rotary shaft and the rear stop shaft are respectively provided with a through hole which is communicated with each other, the front rotary shaft and the rear stop shaft are respectively arranged in the shaft sleeve in a matched manner, the shaft sleeve comprises a front gland, a limit gland and a rear gland, the front gland is fixedly connected with the front end of the limit gland, the front end of the front gland is provided with a positioning disc which extends outwards and is used for being matched and fixed on a main shaft seat casting, the rear gland is fixedly connected with the rear end of the limit gland, the, the center of back gland is equipped with the access thru hole that switches on with the access mouth, and the front end of back locking axle is equipped with spacing disc, and the rear end of back locking axle is equipped with the sealed post of mating penetrating access thru hole to restrict back locking axle rotation through the bayonet lock of mating inserting back gland, the center of spacing gland is equipped with spacing inner ring, and the inner bore diameter of spacing inner ring is less than the external diameter of spacing disc, thereby is used for restricting back locking axle and moves forward.
In the above description, as a preferable mode, a sealing ring is sleeved on the periphery of the sealing column.
In the above description, as a preferable scheme, the front end of the rear gland is provided with more than two positioning grooves with forward openings, a spring is arranged in each positioning groove, the front end of the spring extends forwards and is pressed by a limiting disc, and the rear stop shaft keeps a forward inclination under the action of the spring.
In the above description, it is preferable that the front end of the front rotating shaft is provided with an external thread for mating with the main shaft.
In the above description, as a preferable scheme, the edge of the positioning disk is provided with more than two positioning holes, and the positioning disk is locked to the spindle seat casting through bolts which are matched and penetrate into the positioning holes.
In the above description, as a preferable scheme, the front gland, the limiting gland and the rear gland are locked by long bolts.
The utility model discloses produced beneficial effect is: add preceding gland, the positioning disk of preceding gland can pair fixedly to the spindle drum foundry goods during use, compare with traditional independent threaded connection structure, multiplicable overall stability after fixed to the spindle drum foundry goods through the locking, and simultaneously, under the supplementary installation of preceding gland, the length of preceding axis of rotation is reducible, need not set up the bearing in addition again and support, it is easier to make overall structure, avoid influencing the bulk life because of the bearing damages, in addition, it can restrict back locking shaft and move forward to add spacing gland, can prevent that back friction ring from contacting and damaging with the preceding friction ring in the rotation for a long time, thereby can improve the life of back friction ring and preceding friction ring.
Drawings
Fig. 1 is a schematic perspective view of a main viewing angle according to an embodiment of the present invention;
fig. 2 is a schematic perspective view of a rear view angle according to an embodiment of the present invention;
FIG. 3 is an exploded view of an embodiment of the present invention;
fig. 4 is a cross-sectional view of an embodiment of the invention;
figure 5 is a schematic view of an embodiment of the present invention mounted to a spindle housing casting;
in the figure, 1 is a front gland, 2 is a limit gland, 3 is a rear gland, 4 is a front rotating shaft, 5 is a rear stop shaft, 6 is a front friction ring, 7 is a rear friction ring, 8 is a positioning disc, 9 is a positioning hole, 10 is a spring, 11 is a bayonet lock, 12 is a limit inner ring, 13 is an access port, and 14 is a main shaft seat casting.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
In this embodiment, referring to fig. 1 to 5, a practical rotary joint capable of increasing stability includes a front rotary shaft 4, a rear stop shaft 5 and a shaft sleeve, wherein the front end of the front rotary shaft 4 is provided with an external thread for mating connection with a main shaft, and the front end of the front rotary shaft 4 is used for connecting with the main shaft, and when the main shaft rotates, the front rotary shaft 4 is driven to rotate synchronously.
The rear end of the front rotating shaft 4 is provided with a front friction ring 6, the rear stop shaft 5 is positioned behind the front rotating shaft 4, the front end of the rear stop shaft 5 is provided with a rear friction ring 7 in matched contact with the front friction ring 6, the front friction ring 6 is driven by the front rotating shaft 4 to rotate together during working, and the front friction ring 6 and the rear friction ring 7 in rotation are in friction contact with each other in opposite surfaces. The centers of the front rotating shaft 4 and the rear stopping shaft 5 are provided with through holes which are communicated with each other, the through holes are used for introducing cooling liquid, and the front rotating shaft 4 and the rear stopping shaft 5 are matched and installed in the shaft sleeve.
The axle sleeve includes preceding gland 1, spacing gland 2 and back gland 3, locks through the stay bolt between preceding gland 1, spacing gland 2 and the back gland 3. Preceding gland 1 fixed connection is in the front end of spacing gland 2, and the front end of preceding gland 1 is equipped with and outwards extends and is used for pairing the positioning disk 8 of fixing to spindle drum foundry goods 14, and as shown in fig. 5, the edge of positioning disk 8 is equipped with four locating holes 9 to bolt through pairing the penetration locating hole 9 locks positioning disk 8 to the rear end face of spindle drum foundry goods 14. Overall stability is increased by the locking securement to the spindle housing casting 14 as compared to a conventional single threaded connection.
The foregoing is a more detailed description of the invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of the ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as the utility model discloses a protection scope.
Claims (6)
1. Rotary joint of multiplicable stability, including preceding rotation axis, back locking axle and axle sleeve, the front end of preceding rotation axis is used for being connected with the main shaft, rotation axis carries out synchronous rotation before driving when the main shaft rotates, the rear end of preceding rotation axis is equipped with preceding friction ring, back locking axle is located the rear of preceding rotation axis, and the front end of back locking axle is equipped with the back friction ring who pairs the contact with preceding friction ring, the center of preceding rotation axis and back locking axle all is equipped with the through-hole that switches on each other, the inside at the axle sleeve of installing is all paired to preceding rotation axis and back locking axle, its characterized in that: the axle sleeve includes preceding gland, spacing gland and back gland, preceding gland fixed connection is in the front end of spacing gland, the front end of preceding gland is equipped with and outwards extends and is used for pairing the positioning disk of fixing to on the spindle drum foundry goods, back gland fixed connection is in the rear end of spacing gland, the rear end of back gland is equipped with the access mouth that extends backward and switch on with the through-hole, the center of back gland is equipped with the access thru hole that switches on with the access mouth, the front end of back locking axle is equipped with spacing disc, the rear end of back locking axle is equipped with pairs and penetrates the sealed post that inserts the thru hole, and restrict back locking axle through pairing the bayonet lock of inserting back gland and rotate, the center of spacing gland is equipped with spacing inner ring, the inner aperture of spacing inner ring is less than the external diameter of spacing disc, thereby be used for restricting back locking axle and move forward.
2. The rotational joint capable of increasing stability according to claim 1, wherein: and a sealing ring is sleeved on the periphery of the sealing column.
3. The rotational joint capable of increasing stability according to claim 1, wherein: the front end of the rear gland is provided with more than two positioning grooves with forward openings, springs are arranged in the positioning grooves, the front ends of the springs extend forwards and are pressed by the limiting circular discs, and the rear stop shaft keeps a forward trend under the action of the springs.
4. A swivel joint with increased stability according to any of claims 1-3, wherein: and the front end of the front rotating shaft is provided with an external thread for matching connection with the main shaft.
5. A swivel joint with increased stability according to any of claims 1-3, wherein: the edge of the positioning disc is provided with more than two positioning holes, and the positioning disc is locked to the main shaft seat casting through bolts which penetrate through the positioning holes in a matched mode.
6. A swivel joint with increased stability according to any of claims 1-3, wherein: the front gland, the limiting gland and the rear gland are locked through long bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921192680.6U CN210548148U (en) | 2019-07-26 | 2019-07-26 | Rotary joint capable of increasing stability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921192680.6U CN210548148U (en) | 2019-07-26 | 2019-07-26 | Rotary joint capable of increasing stability |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210548148U true CN210548148U (en) | 2020-05-19 |
Family
ID=70672506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921192680.6U Expired - Fee Related CN210548148U (en) | 2019-07-26 | 2019-07-26 | Rotary joint capable of increasing stability |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210548148U (en) |
-
2019
- 2019-07-26 CN CN201921192680.6U patent/CN210548148U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200519 |