CN203711867U - Rotor braking device - Google Patents
Rotor braking device Download PDFInfo
- Publication number
- CN203711867U CN203711867U CN201320893657.6U CN201320893657U CN203711867U CN 203711867 U CN203711867 U CN 203711867U CN 201320893657 U CN201320893657 U CN 201320893657U CN 203711867 U CN203711867 U CN 203711867U
- Authority
- CN
- China
- Prior art keywords
- brake ring
- rotor
- annular closed
- oil pocket
- closed oil
- 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 - Lifetime
Links
- 239000003921 oil Substances 0.000 claims description 38
- 239000000446 fuel Substances 0.000 claims description 16
- 239000010720 hydraulic oil Substances 0.000 claims description 13
- 230000015572 biosynthetic process Effects 0.000 claims description 6
- 238000012423 maintenance Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 2
- 241001133184 Colletotrichum agaves Species 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
Landscapes
- Braking Arrangements (AREA)
Abstract
The utility model discloses a rotor braking device which comprises a base and a braking ring. The base is cylindrical, and the bottom of the base inwards protrudes to form an annular supporting table; the outer wall of the braking ring is completely attached to the inner wall of the base, the braking ring is supported on the top face of the annular supporting table, and the outer wall of the braking ring and a rotor are arranged in a spaced mode to form an even gap; an annular closed oil cavity is formed in the braking ring, high-pressure oil is injected into the annular closed oil cavity, and an oil inlet connector and an oil outlet connector are further arranged on a wall body of the braking ring, and respectively communicated with the annular closed oil cavity. The rotor braking device is firm, reliable and free of oil leakage and maintenance, and braking can be effectively achieved.
Description
Technical field
The utility model relates to the technology of electric main shaft, is specifically related to rotor brake gear.
Background technology
Electricity main shaft is the main shaft that machine tool chief axis and spindle motor are combined together occurring in Digit Control Machine Tool field, wherein, electric main shaft comprises shell, through two bearings support, axle core in the enclosure, stator, rotor, high frequency converter plant, oil mist lubricator, cooling device, built-in encoder, tool changing device etc. is installed.The rotor of motor is directly as the main shaft of lathe, and the housing of main axle unit is exactly motor bed-plate, and coordinates other parts, realizes the integrated of motor and machine tool chief axis.
Rotor, after High Rotation Speed, in the time of need to stopping, needing to adopt brake gear to brake to it.The employing cylinder that current brake gear has promotes the mode of brake block friction dieback rotor, the fragile rotor of this mode; Also have the mode that adopts hydraulic oil expansion locking rotor, and the hydraulic oil of this mode is wayward, easily pressure release oil impregnate, brings brake to lose efficacy, even if adopt sealing ring to be sealed, still needs to regularly replace sealing ring, prevents oil impregnate.
Utility model content
In order to overcome the deficiencies in the prior art, the purpose of this utility model is to provide rotor brake gear that can positive braking, it is solid and reliable, can not oil impregnate, avoid safeguarding.
The purpose of this utility model adopts following technical scheme to realize:
Rotor brake gear, comprises base and brake ring, and described base is cylindrical, and the bottom of this base is inwardly protruding with annular brace platform; The outer wall of described brake ring fits in the inwall of base completely, and this brake ring is supported in the end face of annular brace platform, the uniform gap of the alternate formation of the outer wall of brake ring and rotor; In described brake ring, be provided with for injecting the annular closed oil pocket of hydraulic oil, be also provided with fuel inlet fitting and delivery connection on the wall body of brake ring, fuel inlet fitting and delivery connection are communicated with described annular closed oil pocket respectively.
Preferably, the cross section of described annular closed oil pocket is the rectangular ellipse of vertical setting.
Preferably, the spacing of described annular closed oil pocket and brake ring outer wall is 1 ~ 5 times of spacing of annular closed oil pocket and brake ring inwall, between described annular closed oil pocket and brake ring inwall, forms and has flexible thin-walled.
Preferably, the top of described brake ring has interface channel, and two interface channels vertically arrange and are symmetrical arranged with the axis of brake ring, and two interface channels are all communicated with annular closed oil pocket; Described fuel inlet fitting and delivery connection vertically seal and are plugged in two interface channels respectively.
Compared to existing technology, the beneficial effects of the utility model are:
The utility model, can be made brake ring expand and holds the whole outer circumference surface of rotor tightly injecting hydraulic oil in annular closed oil pocket by fuel inlet fitting, realizes positive braking; And open after delivery connection, the pressure release of annular closed oil pocket, brake ring recovers to keep formation gap, interval with rotor.Brake ring is under the support limit effect of fuel inlet fitting, delivery connection, annular brace platform, can solid and reliablely carry out brake, and annular closed oil pocket is connected through the sealing plug-in mounting of fuel inlet fitting and delivery connection self, hydraulic oil in annular closed oil pocket will keep high pressure conditions, keep brake ring to keep expanding, save the replacing, the attended operation that use sealing ring to bring, also avoided oil impregnate; Meanwhile, brake ring is simple in structure, can complete by casting, and suitable batch is produced, and assembling easily.
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is the sectional structure schematic diagram of the utility model rotor brake gear.
In figure: 1, base; 11, annular brace platform; 2, brake ring; 21, annular closed oil pocket; 22, thin-walled; 23, interface channel; 3, rotor; 4, fuel inlet fitting; 5, delivery connection.
The specific embodiment
Rotor brake gear as shown in Figure 1, comprises base 1 and brake ring 2, and base 1 is cylindrical, and the bottom of this base 1 is inwardly protruding with annular brace platform 11; The outer wall of brake ring 2 fits in the inwall of base 1 completely, and this brake ring 2 is supported in the end face of annular brace platform 11, the uniform gap of the outer wall of brake ring 2 formation alternate with rotor 3 (not shown), and this gap is for providing rotation space to rotor 3; In brake ring 2, be provided with for injecting the annular closed oil pocket 21 of hydraulic oil, be also provided with fuel inlet fitting 4 and delivery connection 5 on the wall body of brake ring 2, fuel inlet fitting 4 and delivery connection 5 are communicated with annular closed oil pocket 21 respectively.
By fuel inlet fitting 4 access external high pressure oil sources, in the time of need to braking to rotor 3, toward fuel inlet fitting 4, pass into hydraulic oil, hydraulic oil enters annular closed oil pocket 21, now delivery connection 5 is closed,, under the effect of oil pressure, brake ring 2 expands, thereby by the whole external peripheral surface locking of rotor 3, realize the object of brake, locking.When needs rotor 3 rotates, delivery connection 5 is opened, hydraulic oil in annular closed oil pocket 21 outwards discharges by delivery connection 5, now annular closed oil pocket 21 internal pressures reduce, brake ring 2 will restore to the original state again, keep interval to form the gap of rotating for rotor 3 with rotor 3, rotor 3 can freely rotate again.
For making the enclasping force of 2 pairs of rotors 3 of brake ring more even, the cross section of annular closed oil pocket 21 is the rectangular ellipse of vertical setting.When annular closed oil pocket 21 passes into after hydraulic oil, brake ring 2 is radially expanded brake ring 2, is evenly to be expanded on the axial direction of brake ring 2 simultaneously, thereby more effectively, closely holds rotor 3 tightly.
The spacing of annular closed oil pocket 21 and brake ring 2 outer walls is annular closed oil pockets 21 and 1 ~ 5 times of the spacing of brake ring 2 inwalls, and between annular closed oil pocket 21 and brake ring 2 inwalls, formation has flexible thin-walled 22.The formation of this thin-walled 22, to be beneficial to brake ring 2 can be by a relatively large margin under the effect of hydraulic oil oil pressure, expand delicately, and can quick, sensitive recovery resilience after hydraulic oil pressure release, scratching when being conducive to 3 employings of brake ring 2 and rotor and preventing rotor 3 normal operation compared with large gap, is also beneficial to the elastic performance that improves brake ring 2.The brake ring 2 of the present embodiment can adopt metal material.
The top of brake ring 2 has that interface channel 23, two interface channels 23 vertically arrange and is symmetrical arranged with the axis of brake ring 2, and two interface channels 23 are all communicated with annular closed oil pocket 21; Fuel inlet fitting 4 and delivery connection 5 vertically seal and are plugged in two interface channels 23 respectively.Be arranged on fuel inlet fitting 4 and the delivery connection 5 at brake ring 2 tops, can together support with annular brace platform 11, spacing brake ring 2, prevent brake ring 2 distortion or displacement, avoid the perforate processing technology step that fixedly brake ring 2 brings on base 1 to increase, and be easy to assembling.
Above-mentioned embodiment is only preferred embodiment of the present utility model; can not limit with this scope of the utility model protection, the variation of any unsubstantiality that those skilled in the art does on basis of the present utility model and replacement all belong to the utility model scope required for protection.
Claims (4)
1. rotor brake gear, is characterized in that: comprise base and brake ring, described base is cylindrical, and the bottom of this base is inwardly protruding with annular brace platform; The outer wall of described brake ring fits in the inwall of base completely, and this brake ring is supported in the end face of annular brace platform, the uniform gap of the alternate formation of the outer wall of brake ring and rotor; In described brake ring, be provided with for injecting the annular closed oil pocket of hydraulic oil, be also provided with fuel inlet fitting and delivery connection on the wall body of brake ring, fuel inlet fitting and delivery connection are communicated with described annular closed oil pocket respectively.
2. rotor brake gear according to claim 1, is characterized in that: the cross section of described annular closed oil pocket is the rectangular ellipse of vertical setting.
3. rotor brake gear according to claim 2, it is characterized in that: the spacing of described annular closed oil pocket and brake ring outer wall is 1 ~ 5 times of spacing of annular closed oil pocket and brake ring inwall, between described annular closed oil pocket and brake ring inwall, form and there is flexible thin-walled.
4. according to the rotor brake gear described in claim 1 ~ 3 any one, it is characterized in that: the top of described brake ring has interface channel, two interface channels vertically arrange and are symmetrical arranged with the axis of brake ring, and two interface channels are all communicated with annular closed oil pocket; Described fuel inlet fitting and delivery connection vertically seal and are plugged in two interface channels respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320893657.6U CN203711867U (en) | 2013-12-31 | 2013-12-31 | Rotor braking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320893657.6U CN203711867U (en) | 2013-12-31 | 2013-12-31 | Rotor braking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203711867U true CN203711867U (en) | 2014-07-16 |
Family
ID=51151066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320893657.6U Expired - Lifetime CN203711867U (en) | 2013-12-31 | 2013-12-31 | Rotor braking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203711867U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106078308A (en) * | 2016-08-18 | 2016-11-09 | 北京超同步伺服股份有限公司 | Hydraulic locking apparatus for electro spindle braking |
| CN108857471A (en) * | 2018-07-25 | 2018-11-23 | 深圳市科益展自动化有限公司 | Five shaft platform of oil pressure cantilever and its design method |
| CN113334194A (en) * | 2021-07-12 | 2021-09-03 | 台州北平机床有限公司 | Novel vertical grinding machine |
-
2013
- 2013-12-31 CN CN201320893657.6U patent/CN203711867U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106078308A (en) * | 2016-08-18 | 2016-11-09 | 北京超同步伺服股份有限公司 | Hydraulic locking apparatus for electro spindle braking |
| CN108857471A (en) * | 2018-07-25 | 2018-11-23 | 深圳市科益展自动化有限公司 | Five shaft platform of oil pressure cantilever and its design method |
| CN108857471B (en) * | 2018-07-25 | 2024-05-28 | 科益展智能装备有限公司 | Five-axis platform of oil pressure cantilever and design method thereof |
| CN113334194A (en) * | 2021-07-12 | 2021-09-03 | 台州北平机床有限公司 | Novel vertical grinding machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140716 |