CN205896512U - Central swivel joint is used to excavator - Google Patents
Central swivel joint is used to excavator Download PDFInfo
- Publication number
- CN205896512U CN205896512U CN201620766398.4U CN201620766398U CN205896512U CN 205896512 U CN205896512 U CN 205896512U CN 201620766398 U CN201620766398 U CN 201620766398U CN 205896512 U CN205896512 U CN 205896512U
- Authority
- CN
- China
- Prior art keywords
- annular
- oil
- groove
- revolving shell
- ring
- 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
Landscapes
- Joints Allowing Movement (AREA)
Abstract
Central swivel joint is used to excavator is including revolving axle, rotation shell, end cover, guidance tape, rotary combined sealing washer, hexagon head bolt, spring washers, annular oil groove, O shape sealing washer, axle with jump ring, fender ring, the shaft shoulder, revolving axle surface cover is equipped with rotation shell, offers the axial oil ducts of a plurality of transport hydraulic oil in the revolving axle, the oil duct respectively with set up the revolving axle surface not the oil -out of co -altitude link to each other, be provided with on the rotation shell internal surface respectively with the pivot surface communicating annular oil groove of co -altitude oil -out not, every annular oil groove both sides all is provided with annular U groove high pressure seal ring, the utility model discloses a set up the annular U groove high pressure seal ring in U groove, surface grooves's annular protuberance looks adaptation has increased the sealing contact area in annular U groove high pressure seal ring and the rotation shell, has improved sealed degree, has stopped the fluid seepage, has eliminated weeping hidden danger.
Description
Technical field
This utility model is related to excavator technical field of transmission, the central authorities' revolution of more specifically a kind of excavator
Joint.
Background technology
Chassis of dredging machine does relative gyration with portion of upper body, and center-rotary joint is to ensure that when doing gyration
The supply of hydraulic circuit.When excavator revolution action, hydraulic oil is conveyed to by each portion by central joint, plain tubing is difficult to
Accomplish effect as central joint.Annular oil groove both sides will arrange sealing ring and prevent in annular oil groove hydraulic oil under high pressure
Overflow, but existing sealing ring sealing contact surface mostly is plane, sealing contact surface is little, in excacation, hydraulic fluid pressure
Very big, easily cause fluid seepage, impact work efficiency and job stability, or even become accident potential.
Content of the invention
For solving the above problems, overcome the deficiencies in the prior art, this utility model provides a kind of sealing well, aneroid
Force feed Seepage, the no excavator center-rotary joint of potential safety hazard.
For achieving the above object, the excavator center-rotary joint that this utility model provides, including gyroaxis, revolution shell
Body, end cap, guidance tape, rotation combination sealing ring, hexagon-headed bolt, elastic washer, annular oil groove, o shape sealing ring, axle card
Spring, baffle ring, the shaft shoulder；Gyroaxis outer surface is arranged with revolving shell, described gyroaxis can with respect to revolving shell do around return
The circular motion of shaft centerline, offers the axial oil duct of some delivery hydraulic pressure oil in gyroaxis, described oil duct respectively with set
Put gyroaxis outer surface oil-out be connected, described revolving shell inner surface is provided with respectively with rotating shaft outer surface oil-out
The annular oil groove communicating, each described annular oil groove both sides is provided with annular u groove high-pressure seal ring, described annular u groove high pressure
Sealing ring be embedded in the groove of revolving shell inner surface of annular u groove high-pressure seal ring mating shapes in.
Further, described revolving shell upper end is provided with end cap, and described end cap passes through hexagon-headed bolt and revolution shell
Body phase even, described hexagon-headed bolt is additionally provided with anti-loosening elastic washer.
Further, described revolving shell and end cap contact surface offer annular seal grooves, described annular seal grooves
Inside it is provided with o shape sealing ring.
Further, described gyroaxis and revolving shell lower end mating part are provided with the annular table scalariform shaft shoulder, revolution
Axle is provided with the baffle ring to revolving shell axial limiting and axle jump ring with the part of revolving shell upper end cooperation.
Further, described revolving shell upper end inwall is further opened with inlaying the annular direction recess of guidance tape.
The beneficial effects of the utility model are: this utility model is using the annular u groove high-pressure seal ring offering u groove, ring
The annular projection of shape u groove high-pressure seal ring and revolving shell inner surface recesses is adapted, and increased area in sealing contact, improves
Tightness, has prevented fluid seepage, eliminates leakage hidden danger.
Brief description:
Accompanying drawing 1 is structural representation of the present utility model；
Accompanying drawing 2 is the mplifying structure schematic diagram at this utility model a；
In accompanying drawing: 1, gyroaxis, 2, revolving shell, 3, end cap, 4, guidance tape, 5, annular u groove high-pressure seal ring, 6, hexagonal
Hook bolt, 7, elastic washer, 8, annular oil groove, 9, o shape sealing ring, 10, axle jump ring, 11, baffle ring, 12, the shaft shoulder.
Specific embodiment:
For making purpose, technical scheme and advantage that this utility model is implemented clearer, below in conjunction with this utility model
Accompanying drawing, this utility model is further described in more detail.
It is to be understood that being described as based on attached of indicating position or position relationship in description of the present utility model
Orientation shown in figure or position relationship, are for only for ease of and describe this utility model and simplify description, rather than instruction or hint
The device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to this
The restriction of utility model protection scope.Additionally, term " first ", " second ", " the 3rd " are only used for describing purpose, and it is not understood that
For indicating or implying relative importance.
In description of the present utility model, it should be noted that unless otherwise clearly defined and limited, term " sets
Put ", should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or integratedly " being connected ", " connection "
Connect；Can be to be mechanically connected or electrically connect；Can be to be joined directly together it is also possible to be indirectly connected to by intermediary,
It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
Concrete meaning in this utility model for the language.
In accompanying drawing 1 and accompanying drawing 2, the excavator center-rotary joint that this utility model provides, including gyroaxis 1, returns
Transcapsidation body 2, end cap 3, guidance tape 4, rotation combination sealing ring, hexagon-headed bolt 6, elastic washer 7, annular oil groove 8, the sealing of o shape
Circle 9, axle jump ring 10, baffle ring 11, the shaft shoulder 12；Gyroaxis 1 outer surface is arranged with revolving shell 2, and described gyroaxis 1 can be relatively
Do the circular motion around gyroaxis 1 centrage in revolving shell 2, in gyroaxis 1, offer the axial direction of some delivery hydraulic pressure oil
Oil duct, described oil duct is connected with the oil-out being arranged on gyroaxis 1 outer surface respectively, and described revolving shell 2 inner surface is arranged
There is the annular oil groove 8 communicating respectively with rotating shaft outer surface oil-out, each described annular oil groove 8 both sides is provided with annular u groove
High-pressure seal ring 5, described annular u groove high-pressure seal ring 5 is embedded in the revolution with annular u groove high-pressure seal ring 5 mating shapes
In the groove of housing 2 inner surface, the annular projection of annular u groove high-pressure seal ring 5 and revolving shell 2 inner surface recesses is adapted,
Increased area in sealing contact, improve tightness, prevented fluid seepage, eliminate leakage hidden danger.
Described revolving shell 2 upper end is provided with end cap 3, and described end cap 3 passes through hexagon-headed bolt 6 and revolving shell 2 phase
Even, described hexagon-headed bolt 6 is additionally provided with anti-loosening elastic washer 7 it is ensured that will not lead because of the vibrations in work process
Hexagon-headed bolt 6 is caused to loosen thus causing end cap 3 to separate with revolving shell 2, revolving shell 2 and end cap 3 contact surface offer ring
Shape sealed groove, is provided with o shape sealing ring 9 in described annular seal grooves, prevent in gyroaxis 1 and revolving shell 2 cavity
Lubricating oil flows out in revolving shell 2；Gyroaxis 1 and revolving shell 2 lower end mating part are provided with the annular table scalariform shaft shoulder
12, gyroaxis 1 is provided with the baffle ring 11 to revolving shell 2 axial limiting and axle with the part of revolving shell 2 upper end cooperation
With jump ring 10, effectively prevent gyroaxis 1 and revolving shell 2 from axial displacement occurring, described revolving shell 2 upper end inwall is further opened with
Inlay the annular direction recess of guidance tape 4.
Claims (5)
1. excavator center-rotary joint, including gyroaxis (1), revolving shell (2), end cap (3), guidance tape (4), annular u
Groove high-pressure seal ring (5), hexagon-headed bolt (6), elastic washer (7), annular oil groove (8), o shape sealing ring (9), axle jump ring
(10), baffle ring (11), the shaft shoulder (12)；It is characterized in that gyroaxis (1) outer surface is arranged with revolving shell (2), in gyroaxis (1)
Offer the axial oil duct of some delivery hydraulic pressure oil, described oil duct respectively with the oil-out phase being arranged on gyroaxis (1) outer surface
Even, described revolving shell (2) inner surface is provided with the annular oil groove (8) communicating respectively, institute with the oil-out of rotating shaft outer surface
State annular oil groove (8) both sides and be provided with annular u groove high-pressure seal ring (5), described annular u groove high-pressure seal ring (5) is embedded in
In the groove of revolving shell (2) inner surface of annular u groove high-pressure seal ring (5) mating shapes.
2. excavator center-rotary joint as claimed in claim 1 is it is characterised in that described revolving shell (2) upper end sets
It is equipped with end cap (3), described end cap (3) is connected with revolving shell (2) by hexagon-headed bolt (6), on described hexagon-headed bolt (6)
It is additionally provided with anti-loosening elastic washer (7).
3. excavator center-rotary joint as claimed in claim 1 is it is characterised in that described revolving shell (2) and end cap
(3) contact surface offers annular seal grooves, is provided with o shape sealing ring (9) in described annular seal grooves.
4. excavator center-rotary joint as claimed in claim 1 is it is characterised in that described gyroaxis (1) and revolving shell
(2) lower end mating part is provided with the annular table scalariform shaft shoulder (12), the portion that gyroaxis (1) is coordinated with revolving shell (2) upper end
Divide and be provided with the baffle ring (11) to revolving shell (2) axial limiting and axle jump ring (10).
5. excavator center-rotary joint as claimed in claim 1 is it is characterised in that described revolving shell (2) upper end inwall
It is further opened with inlaying the annular direction recess of guidance tape (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620766398.4U CN205896512U (en) | 2016-07-21 | 2016-07-21 | Central swivel joint is used to excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620766398.4U CN205896512U (en) | 2016-07-21 | 2016-07-21 | Central swivel joint is used to excavator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205896512U true CN205896512U (en) | 2017-01-18 |
Family
ID=57773211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620766398.4U Expired - Fee Related CN205896512U (en) | 2016-07-21 | 2016-07-21 | Central swivel joint is used to excavator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205896512U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108644509A (en) * | 2018-07-11 | 2018-10-12 | 深圳市森瑞普电子有限公司 | A kind of multi-path gas-liquid rotary slip ring |
| CN109854851A (en) * | 2019-01-22 | 2019-06-07 | 宝鸡石油机械有限责任公司 | A kind of hydraulic quick connecting device suitable for high pressure pipe joint |
| CN112555548A (en) * | 2020-12-18 | 2021-03-26 | 徐州徐工随车起重机有限公司 | Novel central swivel joint for engineering machinery |
-
2016
- 2016-07-21 CN CN201620766398.4U patent/CN205896512U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108644509A (en) * | 2018-07-11 | 2018-10-12 | 深圳市森瑞普电子有限公司 | A kind of multi-path gas-liquid rotary slip ring |
| CN109854851A (en) * | 2019-01-22 | 2019-06-07 | 宝鸡石油机械有限责任公司 | A kind of hydraulic quick connecting device suitable for high pressure pipe joint |
| CN112555548A (en) * | 2020-12-18 | 2021-03-26 | 徐州徐工随车起重机有限公司 | Novel central swivel joint for engineering machinery |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205896512U (en) | Central swivel joint is used to excavator | |
| CN205013918U (en) | High rotational speed rotary joint of single channel high pressure | |
| CN203499690U (en) | Spraying device in coal cutter | |
| CN203906801U (en) | Light mechanical sealing device for pump | |
| CN102042450B (en) | Centre revolving joint for engineering machinery | |
| CN202048287U (en) | Rotating connection device in oil way system | |
| CN106287093B (en) | Hydraulic turbine vibrationproof balance pipe | |
| CN205689984U (en) | A kind of chemical pipeline leakage collection device | |
| CN205402017U (en) | Vacuum pump station | |
| CN203453676U (en) | Central swivel joint for 22-tonner crawler excavator | |
| CN205173219U (en) | Drag link connector assembly | |
| CN202992527U (en) | Flywheel casing for agricultural machines | |
| CN202546076U (en) | Rotary joint | |
| CN205908443U (en) | High -pressure pump plunger | |
| CN203584884U (en) | Submersible pump sealing device | |
| CN201866443U (en) | Centre revolving joint for engineering machinery | |
| CN204817902U (en) | Roller mill mulling arm main shaft bearing seal structure | |
| CN204962125U (en) | Rotating quick connector | |
| CN204533913U (en) | Zero leakage swivel joint | |
| CN205937285U (en) | Track tension cylinder | |
| CN203411777U (en) | Sewing machine oscillating shaft sleeve with oil return function | |
| CN203375043U (en) | Center swivel joint for 6t-8t-level crawler excavator | |
| CN209818991U (en) | Fast-insertion safety valve | |
| CN204805214U (en) | A font for connecting back cylinder body is imported and exported and outside oil circuit | |
| CN204664023U (en) | A kind of hydraulic oil container filler cap component |
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: 20170118 Termination date: 20210721 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |