CN202768538U - Rotary oil feeder - Google Patents
Rotary oil feeder Download PDFInfo
- Publication number
- CN202768538U CN202768538U CN 201220370450 CN201220370450U CN202768538U CN 202768538 U CN202768538 U CN 202768538U CN 201220370450 CN201220370450 CN 201220370450 CN 201220370450 U CN201220370450 U CN 201220370450U CN 202768538 U CN202768538 U CN 202768538U
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- CN
- China
- Prior art keywords
- oil
- axle sleeve
- fixed axle
- rotatingshaft
- oilier
- 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
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Abstract
The utility model belongs to the technical field of mechanical equipment and relates to a rotary oil feeder. In order to solve the problem of oil leakage of the rotary oil feeder, the rotary oil feeder comprises a rotating shaft, a fixed shaft sleeve sleeved on the rotating shaft and an oil transportation component. The oil transportation component comprises a first oil channel, a second oil channel, a first oil port and a second oil port, wherein the first oil channel and the second oil channel are arranged in the rotating shaft, and the first oil port and the second oil port are respectively communicated with first oil channel and the second oil channel, the first oil port and the second oil port are arranged on the fixed shaft sleeve. The rotary oil feeder further comprises a ball bearing which is connected with the rotating shaft and the fixed shaft sleeve and a shaft sealing component for sealing a space between the rotating shaft and the fixed shaft sleeve. By means of the technical scheme, the technical problem can be effectively solved.
Description
Technical field
The utility model belongs to mechanical equipment technical field, relates to a kind of rotation oilier.
Background technique
Oilier is the visual plant that drives the oil hydraulic cylinder normal operation, usually, piston in the oil hydraulic cylinder is divided into two independently hydraulic pressure cavity with oil hydraulic cylinder, is pressed into or extrudes the motion that hydraulic oil just can control piston to these two hydraulic pressure cavity, realizes the mechanical function of oil hydraulic cylinder.
Under many circumstances, oil hydraulic cylinder needs integral-rotation, thereby the rotation oilier also appearred accordingly, this class rotation oilier generally comprises the axle of a rotation and is enclosed within fixed axle sleeve on the axle, oil duct is set in the rotatingshaft, extraneous hydraulic oil enters oil duct by oil pump and the hydraulic fluid port that is arranged on the fixed axle sleeve, and owing to inevitably have the gap between axle and the fixed axle sleeve, therefore, when entering oil duct by hydraulic fluid port, there is part oil can enter under pressure the gap, thereby forms oil leakage phenomenon.
Prior art is that the gap location at hydraulic fluid port and oil duct arranges back-up ring, prevents leakage of oil on the one hand, and axle can be rotated with respect to fixed axle sleeve by back-up ring.Yet this structure makes the back-up ring Fast Wearing easily, thereby oil leakage phenomenon can occur very soon again.
The model utility content
Technical problem to be solved in the utility model is the Leakage that the rotation oilier exists, and provides a kind of rotation oilier for this problem.
The utility model solves the problems of the technologies described above by the following technical programs:
A kind of rotation oilier, comprise rotatingshaft, be enclosed within fixed axle sleeve and oil transportation parts on the rotatingshaft, described oil transportation parts comprise the first oil duct and the second oil duct that is positioned at rotatingshaft, and the first hydraulic fluid port and the second hydraulic fluid port that are connected respectively with the first oil duct and the second oil duct, described the first hydraulic fluid port and the second hydraulic fluid port are arranged on the fixed axle sleeve, it is characterized in that described rotation oilier also comprises the ball bearing of connection of rotating axle and fixed axle sleeve, and the shaft sealing part that seals space between rotatingshaft and the fixed axle sleeve.
The utility model finds that the main drawback of prior art is to serve as simultaneously be used to the back-up ring that prevents leakage of oil the effect of mechanical bearing, and after fulfiling the effect of bearing, can slacken greatly again the effect that back-up ring prevents leakage of oil, finally causes the leakage of oil of rotation oilier.The function that the utility model is given back-up ring with prior art is transferred at least two parts and is finished, and namely is respectively the ball bearing of realizing the bearing function and the shaft sealing part that prevents leakage of oil.
The wear phenomenon of ball bearing will lack much with respect to sliding bearing, in in implementation, a kind of better scheme is that rolling bearing is arranged in the space that shaft sealing part, rotatingshaft and fixed axle sleeve consist of, under the effect of the leakage of oil between oil duct and the hydraulic fluid port at oil pressure, pass through like this ball bearing, play the effect of lubricated ball bearing, with the phenomenon that further reduces wear.
And can be diversified for the selection of shaft sealing, in fact, the structure that can play the shaft sealing effect all can be used as shaft sealing part described in the utility model.
Adopt a positive effect of the utility model technique scheme to be, greatly prolonged (because in the rotary course of selecting oilier, the wearing and tearing of equipment substantially not occurring) working life of rotation oilier, and obtained good leak preventing effect.
The utility model has also further adopted following technological scheme:
Described shaft sealing part comprises that the inner ring end props up support ring support and the fixed axle sleeve sealing cover of the back-up ring of rotatingshaft, backup washer, is provided with O shape circle between described support ring support and the fixed axle sleeve, is provided with O shape circle between described fixed axle sleeve sealing cover and the fixed axle sleeve;
The inner ring distal process of described back-up ring rises;
Described shaft sealing part also comprises the collar that blocks the support ring support, and fixed axle sleeve is provided with the collar groove;
Rotatingshaft is provided with equally distributed at least four interfaces, and described at least four interfaces all are communicated with the first oil duct;
Described rotation oilier also comprises oil leakaging port, and described oil leakaging port is communicated with space between rotatingshaft and fixed axle sleeve.
Description of drawings
Fig. 1 is the described a kind of structural representation (oil hydraulic cylinder, oil transport pipeline and external interface are all not shown) that rotates oilier of embodiment.
Embodiment
This part is the supplementary notes to the model utility content part.
A kind of rotation oilier, comprise rotatingshaft, be enclosed within fixed axle sleeve and oil transportation parts on the rotatingshaft, described oil transportation parts comprise the first oil duct and the second oil duct that is positioned at rotatingshaft, and the first hydraulic fluid port and the second hydraulic fluid port that are connected respectively with the first oil duct and the second oil duct, described the first hydraulic fluid port and the second hydraulic fluid port are arranged on the fixed axle sleeve, described rotation oilier also comprises the ball bearing of connection of rotating axle and fixed axle sleeve, and the shaft sealing part that seals space between rotatingshaft and the fixed axle sleeve.
The shaft sealing part that the utility model is selected comprises that the inner ring end props up support ring support and the fixed axle sleeve sealing cover of the back-up ring of rotatingshaft, backup washer, supports between ring support and the fixed axle sleeve and is equipped with O shape between fixed axle sleeve sealing cover and the fixed axle sleeve and enclose.Prop up rotatingshaft the inner ring end, support between ring support and the fixed axle sleeve and the circle of the O shape between fixed axle sleeve sealing cover and the fixed axle sleeve has consisted of a complete sealing system.
Back-up ring directly bears oil pressure, and back-up ring is pushed away to supporting on the ring support, on the one hand, in order to offset this active force, is provided with the collar groove at fixed axle sleeve, and props up the support axle bed with the collar of plug card ring recess; On the other hand, the utility model is found, oil pressure is orthogonal to the active force that active force and the back-up ring of back-up ring props up rotatingshaft, wearing and tearing along with back-up ring inner ring end, also oil leakage phenomenon may appear, if and back-up ring inner ring distal process is risen, then just in time to prop up the direction of rotatingshaft identical with back-up ring to the active force of this protruding part for oil pressure, the also corresponding raising of the area of contact of rotatingshaft and back-up ring inner ring end, thereby sealing effect can further improve, even if the wearing and tearing of back-up ring inner ring end occur, also can keep good sealing effect.
Excessive oil pressure; may destroy shaft sealing part; for the situation that surpasses the shaft sealing part pressure bearing limit; the utility model is provided with oil leakaging port; described oil leakaging port is communicated with space between rotatingshaft and fixed axle sleeve, and after pressure reached capacity, the leakage of oil meeting gushed from oil leakaging port; to guarantee that oil pressure is no more than the limiting value of shaft sealing part, protects whole equipment.
Embodiment
See Fig. 1, a kind of rotation oilier comprises rotatingshaft 11, is enclosed within fixed axle sleeve 8, oil transportation parts and shaft sealing part on the rotatingshaft 11, and described oil transportation parts comprise the first oil duct 13 and the second oil duct 12 that is arranged in the rotatingshaft 11; The oil leakaging port 15 that is arranged on the first hydraulic fluid port 6 on the fixed axle sleeve 8, the second hydraulic fluid port 7 and is communicated with space between rotatingshaft 11 and fixed axle sleeve 8; Described the first hydraulic fluid port 6 and the second hydraulic fluid port 7 are communicated with the first oil duct 13 and the second oil duct 12 respectively, described shaft sealing part comprises that the inner ring end props up support ring support 4 and the fixed axle sleeve sealing cover 9 of the back-up ring 14 of rotatingshaft 11, backup washer 14, be stuck in the collar 2 on the collar groove, support between ring support 4 and the fixed axle sleeve 8 and be equipped with O shape between fixed axle sleeve sealing cover 9 and the fixed axle sleeve 8 and enclose 3 or 10.
The rolling bearing 5 of connection of rotating axle 11 and fixed axle sleeve 8 is supporting between ring support 4 and the fixed axle sleeve sealing cover 9, the inner ring end of back-up ring 14 and outer ring end be projection (taking the shape of the letter U) in the same way, in view of present the first oil duct 13 is to be communicated with the external interface of oil hydraulic cylinder by external oil transport pipeline, and in reality produces, rotatingshaft 11 directly is not connected with oil hydraulic cylinder, but by some diameter changing mechanism, for example be threaded by adapter flange between rotatingshaft 11 and the oil hydraulic cylinder, guaranteeing under the prerequisite that rotatingshaft 11 screws by adapter flange and oil hydraulic cylinder like this, the external interface that oil hydraulic cylinder might occur, the interface 1 of the first oil duct 13 and the rotating shaft of rotatingshaft 11 can't be in conplane phenomenon, cause oil transport pipeline external interface and the interface that is communicated with the first oil duct 13 1 can't be communicated with, therefore present embodiment is that rotatingshaft 11 is provided with four interfaces 1 that are communicated with the first oil duct 13, even if can't be connected with one of them interface, but just can finish smoothly being communicated with of interface 1 and external interface as long as rotate less angle (for example 10 °).
During use, with oil pump oil is squeezed into the first oil duct 13 by the first hydraulic fluid port 6, and by the oil in the second hydraulic fluid port 7 extractions the second oil duct 12, if oil pressure is excessive, the leakage of oil that is full of space between rotatingshaft 11 and the fixed axle sleeve 8 can be discharged to the external world by oil leakaging port 15, obtains re-using.Certainly, also can oil be squeezed into the second oil duct 12 by the second hydraulic fluid port 7 with oil pump, and by the oil in the first hydraulic fluid port 6 extractions the first oil duct 13.More than show and described basic principle of the present utility model, major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that describes in above-described embodiment and the specification just illustrates principle of the present utility model; the utility model also has various changes and modifications under the prerequisite that does not break away from the utility model spirit and scope, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (6)
1. rotation oilier, comprise rotatingshaft, be enclosed within fixed axle sleeve and oil transportation parts on the rotatingshaft, described oil transportation parts comprise the first oil duct and the second oil duct that is positioned at rotatingshaft, and the first hydraulic fluid port and the second hydraulic fluid port that are connected respectively with the first oil duct and the second oil duct, described the first hydraulic fluid port and the second hydraulic fluid port are arranged on the fixed axle sleeve, it is characterized in that described rotation oilier also comprises the ball bearing of connection of rotating axle and fixed axle sleeve, and the shaft sealing part that seals space between rotatingshaft and the fixed axle sleeve.
2. a kind of rotation oilier according to claim 1, it is characterized in that described shaft sealing part comprises that the inner ring end props up support ring support and the fixed axle sleeve sealing cover of the back-up ring of rotatingshaft, backup washer, be provided with O shape circle between described support ring support and the fixed axle sleeve, be provided with O shape circle between described fixed axle sleeve sealing cover and the fixed axle sleeve.
3. a kind of rotation oilier according to claim 2 is characterized in that the inner ring distal process of described back-up ring rises.
4. a kind of rotation oilier according to claim 2 is characterized in that described shaft sealing part also comprises the collar that blocks the support ring support, and fixed axle sleeve is provided with the collar groove.
5. a kind of rotation oilier according to claim 1 is characterized in that rotatingshaft is provided with equally distributed at least four interfaces, and described at least four interfaces all are communicated with the first oil duct.
6. a kind of rotation oilier according to claim 1 is characterized in that described rotation oilier also comprises oil leakaging port, and described oil leakaging port is communicated with space between rotatingshaft and fixed axle sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220370450 CN202768538U (en) | 2012-07-27 | 2012-07-27 | Rotary oil feeder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220370450 CN202768538U (en) | 2012-07-27 | 2012-07-27 | Rotary oil feeder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202768538U true CN202768538U (en) | 2013-03-06 |
Family
ID=47775118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220370450 Expired - Fee Related CN202768538U (en) | 2012-07-27 | 2012-07-27 | Rotary oil feeder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202768538U (en) |
-
2012
- 2012-07-27 CN CN 201220370450 patent/CN202768538U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130306 Termination date: 20150727 |
|
| EXPY | Termination of patent right or utility model |