CN205745800U - Clearance sealing structure swivel joint - Google Patents
Clearance sealing structure swivel joint Download PDFInfo
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- CN205745800U CN205745800U CN201521019806.1U CN201521019806U CN205745800U CN 205745800 U CN205745800 U CN 205745800U CN 201521019806 U CN201521019806 U CN 201521019806U CN 205745800 U CN205745800 U CN 205745800U
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- outer tube
- housing
- sealing structure
- swivel joint
- ball bearing
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Abstract
This utility model relates to a kind of clearance sealing structure swivel joint, including housing and the outer tube being arranged in housing, it is characterized in that: described outer tube uses clearance seal with housing；The front-end and back-end of described housing are respectively equipped with end cap and tail-hood, end cap and tail-hood and are all set on outer tube；Described outer tube is arranged in housing by the first deep groove ball bearing and the second deep groove ball bearing；Described outer tube is provided with fuel feed hole and air inlet, and the cylindrical of described housing is provided with oil outlet and leak.Clearance sealing structure swivel joint provided by the utility model is the high-voltage high-speed hydraulic rotary joint of the special clearance sealing structure of hydraulic test, good airproof performance, and leakage rate is low, it is ensured that hydraulic work system stability and the work efficiency of raising equipment.
Description
Technical field
This utility model relates to a kind of swivel joint, especially clearance sealing structure swivel joint, belongs to hydraulic packing technical field.
Background technology
Swivel joint is the connection seal member that fluid media (medium) (liquid, gas etc.) is input to slewing from static duct, is to solve run, drip, leak, saves the energy, protects environment, the sealing device improved working conditions.In existing technology, swivel joint is primarily present following defect: cannot meet existing equipment applying working condition, hydraulic work system instability, inefficiency, leakage rate is big, affect manufacturing schedule, profile is coarse, simple and crude.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, it is provided that a kind of clearance sealing structure swivel joint, and for hydraulic test, logical oil, gas are effective, seal stability good, and maintenance period and service life are long.
The technical scheme provided according to this utility model, a kind of clearance sealing structure swivel joint, including housing and the outer tube being arranged in housing, it is characterized in that: described outer tube uses clearance seal with housing；The front-end and back-end of described housing are respectively equipped with end cap and tail-hood, end cap and tail-hood and are all set on outer tube；Described outer tube is arranged in housing by the first deep groove ball bearing and the second deep groove ball bearing；Described outer tube is provided with fuel feed hole and air inlet, and the cylindrical of described housing is provided with oil outlet and leak.
Sealed by the first O and the first outside framework oil seal between described end cap and outer tube；Sealed by the second O and the second outside framework oil seal between described tail-hood and outer tube.
The inner surface of described housing is provided with annular groove, annular groove connection fuel feed hole and oil outlet.
Being provided with leakage through hole on the housing, the two-port of leakage through hole is respectively communicated to the first deep groove ball bearing and the second deep groove ball bearing, and leakage through hole connects with leak.
The end of described outer tube is provided with bolt fastening structure, and the afterbody mounting plane of outer tube seals high-speed joint.
Clearance sealing structure swivel joint provided by the utility model is the high-voltage high-speed hydraulic rotary joint of the special clearance sealing structure of hydraulic test, good airproof performance, and leakage rate is low, it is ensured that hydraulic work system stability and the work efficiency of raising equipment.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the left view of Fig. 1.
Detailed description of the invention
Below in conjunction with concrete accompanying drawing, the utility model is described in further detail.
Such as Fig. 1, shown in Fig. 2: the swivel joint of the special clearance sealing structure of described hydraulic test includes the 3rd O 1, outer tube 2, end cap 3, first hexagon socket cap head screw 4, first O 5, first outside framework oil seal 6, first deep groove ball bearing 7, first shaft block ring 8, housing 9, second deep groove ball bearing 10, second O 11, tail-hood 12, second hexagon socket cap head screw 13, second shaft block ring 14, second outside framework oil seal 15, flat seal swivel joint 16, fuel feed hole 17, air inlet 18, oil outlet 19, leak 20, spline hole 21, leakage through hole 22 etc..
As it is shown in figure 1, this utility model includes housing 9 and the outer tube 2 being arranged in housing 9；The front-end and back-end of described housing 9 are respectively equipped with end cap 3 and tail-hood 12, end cap 3 and tail-hood 12 and are fixed on housing 9 by the first hexagon socket cap head screw 4 and the second hexagon socket cap head screw 13 respectively, and end cap 3 and tail-hood 12 are all set on outer tube 2；Sealed by the first O 5 and the first outside framework oil seal 6 between described end cap 3 and outer tube 2；Sealed by the second O 11 and the second outside framework oil seal 15 between described tail-hood 12 and outer tube 2；Described outer tube 2 is arranged in housing 9 by the first deep groove ball bearing 7 and the second deep groove ball bearing 10, and the first deep groove ball bearing 7 and the second deep groove ball bearing 10 are fixed by the first shaft block ring 8 and the second shaft block ring 14 respectively；
As in figure 2 it is shown, described outer tube 2 is provided with two fuel feed holes 17 and an air inlet 18, fuel feed hole 17 is respectively equipped with the 3rd O 1 with the port of air inlet 18；The cylindrical of described housing 9 is provided with 19, two leaks 20 of two oil outlets, a spline hole 21, and the inner surface of housing 9 is provided with two annular grooves, annular groove connection fuel feed hole 17 and oil outlet 19；
Described housing 9 is provided with two leakage through holes 22, the two-port of leakage through hole 22 is respectively communicated to the first deep groove ball bearing 7 and the second deep groove ball bearing 10, leakage through hole 22 connects with leak 20, for being discharged by the fluids such as the oil preparation of leakage between outer tube 2 and housing 9；
The end of described outer tube 2 is provided with bolt fastening structure, and bolt fastening structure is bolted with rotating axle head；The afterbody mounting plane of described outer tube 2 seals high-speed joint 16；
Described outer tube 2 uses clearance seal, good airproof performance with housing 9, and leakage rate is low, and hydraulic work system is stable, efficient.
Operation principle of the present utility model and work process: as shown in Figure 1 and Figure 2, fluid media (medium) such as oil preparation etc. enters outer tube 2 by fuel feed hole 17, flows into annular groove via fuel feed hole 17 outlet, then discharges through oil outlet 19；Because outer tube 2 and housing 9 use clearance seal, fuel feed hole 17 oil preparation exporting outflow has the space leaked on a small quantity between the first deep groove ball bearing 7 and the second deep groove ball bearing 10 and housing 9, and the oil preparation of leakage can be discharged through leak 20 by leakage through hole 22.Being respectively equipped with the first outside framework oil seal 6 and the second outside framework oil seal 15 between end cap 3 and tail-hood 12 and outer tube 2, wearability is good, and frictional force is little, and compressibility is little and retractility good.
Claims (5)
1. a clearance sealing structure swivel joint, including housing (9) and the outer tube (2) that is arranged in housing (9), is characterized in that: described outer tube (2) uses clearance seal with housing (9)；The front-end and back-end of described housing (9) are respectively equipped with end cap (3) and tail-hood (12), end cap (3) and tail-hood (12) and are all set on outer tube (2)；Described outer tube (2) is arranged in housing (9) by the first deep groove ball bearing (7) and the second deep groove ball bearing (10)；Described outer tube (2) is provided with fuel feed hole (17) and air inlet (18), and the cylindrical of described housing (9) is provided with oil outlet (19) and leak (20).
2. clearance sealing structure swivel joint as claimed in claim 1, be is characterized in that: sealed by the first O (5) and the first outside framework oil seal (6) between described end cap (3) and outer tube (2)；Sealed by the second O (11) and the second outside framework oil seal (15) between described tail-hood (12) and outer tube (2).
3. clearance sealing structure swivel joint as claimed in claim 1, is characterized in that: the inner surface of described housing (9) is provided with annular groove, annular groove connection fuel feed hole (17) and oil outlet (19).
4. clearance sealing structure swivel joint as claimed in claim 1, it is characterized in that: on described housing (9), be provided with leakage through hole (22), the two-port of leakage through hole (22) is respectively communicated to the first deep groove ball bearing (7) and the second deep groove ball bearing (10), and leakage through hole (22) connects with leak (20).
5. clearance sealing structure swivel joint as claimed in claim 1, is characterized in that: the end of described outer tube (2) is provided with bolt fastening structure, and the afterbody mounting plane of outer tube (2) seals high-speed joint (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521019806.1U CN205745800U (en) | 2015-12-10 | 2015-12-10 | Clearance sealing structure swivel joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521019806.1U CN205745800U (en) | 2015-12-10 | 2015-12-10 | Clearance sealing structure swivel joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205745800U true CN205745800U (en) | 2016-11-30 |
Family
ID=57387604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521019806.1U Active CN205745800U (en) | 2015-12-10 | 2015-12-10 | Clearance sealing structure swivel joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205745800U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105371037A (en) * | 2015-12-10 | 2016-03-02 | 江苏腾旋科技股份有限公司 | Rotary joint of clearance sealing structure |
-
2015
- 2015-12-10 CN CN201521019806.1U patent/CN205745800U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105371037A (en) * | 2015-12-10 | 2016-03-02 | 江苏腾旋科技股份有限公司 | Rotary joint of clearance sealing structure |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |