CN205896512U - Central swivel joint is used to excavator - Google Patents

Central swivel joint is used to excavator Download PDF

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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
Application number
CN201620766398.4U
Other languages
Chinese (zh)
Inventor
张同美
娄玉柱
魏佑超
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHANDONG DORSON HYDRAULIC CO Ltd
Original Assignee
SHANDONG DORSON HYDRAULIC CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SHANDONG DORSON HYDRAULIC CO Ltd filed Critical SHANDONG DORSON HYDRAULIC CO Ltd
Priority to CN201620766398.4U priority Critical patent/CN205896512U/en
Application granted granted Critical
Publication of CN205896512U publication Critical patent/CN205896512U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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

Excavator center-rotary joint
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).
CN201620766398.4U 2016-07-21 2016-07-21 Central swivel joint is used to excavator Expired - Fee Related CN205896512U (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (4)

* Cited by examiner, † Cited by third party
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
CN112555548B (en) * 2020-12-18 2024-08-06 徐州徐工随车起重机有限公司 Center rotary joint for engineering machinery

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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