CN215862238U - Hydraulic oil rotary joint - Google Patents
Hydraulic oil rotary joint Download PDFInfo
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- CN215862238U CN215862238U CN202122298357.0U CN202122298357U CN215862238U CN 215862238 U CN215862238 U CN 215862238U CN 202122298357 U CN202122298357 U CN 202122298357U CN 215862238 U CN215862238 U CN 215862238U
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Abstract
The utility model discloses a hydraulic oil rotary joint which comprises a rotary joint main body, wherein one end of the rotary joint main body is provided with a shell, one end of the shell, far away from the rotary joint main body, is provided with a second joint, the outer surface of the rotary joint main body is provided with a high-pressure shaft body interface, a rotary mandrel is arranged in the rotary joint main body, one end of the rotary mandrel is provided with oil ports, the oil ports are provided with four groups, one side of the surface of the shell is provided with a low-pressure shell body supplementing interface, and the surface of the shell, at one side of the low-pressure shell body supplementing interface, is provided with a high-pressure shell body interface. The utility model not only realizes the multi-path connection function of the joint, leads the joint to operate stably, durably, reliably, solidly and flexibly, prolongs the service life of the joint, but also can quickly finish the installation work of the rotary joint and is convenient for the working personnel to carry out construction operation.
Description
Technical Field
The utility model relates to the technical field of rotary joints, in particular to a hydraulic oil rotary joint.
Background
Hydraulic transmission is more and more common in all industries compared with the advantages of electric transmission and rigid transmission, a hydraulic executing mechanism is firm relative to a medium, the medium can be conveyed to the executing mechanism by using a steel pipe, and the executing mechanism can be connected by using a high-pressure hose when the executing mechanism moves (moves, rotates and swings) a small amount relative to the medium. A hydraulic cylinder is provided on a shaft rotating at a high speed, and a rotary joint is required for transporting a fluid medium such as water, steam, oil, an atmosphere, a vacuum cutting fluid, and a chemical solvent such as toluene. The hydraulic rotary joint is also called a hydraulic rotary joint and can rotate 360 degrees under the working pressure condition, an independent pipeline is arranged in the hydraulic rotary joint, and the side edge or the rear end can be freely selected as a transmission medium inlet according to the working condition.
This type of hydraulic oil rotary joint on the market is of a great variety now, can satisfy people's user demand basically, but still have certain weak point, this type of hydraulic oil rotary joint that has now is in the use, the circulation of hydraulic oil is carried out to the low pressure mostly, to comparatively complicated multichannel hydraulic pressure oil circuit, multiunit rotary joint needs to be arranged, cause the hydraulic pressure pipeline to be complicated and complicated, inconvenience has been brought for staff's follow-up maintenance, and current hydraulic oil rotary joint is after long-time the use, its inside sealing washer and bearing wear are comparatively serious, and life is lower relatively.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a hydraulic oil rotary joint to solve the problems that the hydraulic oil rotary joint is difficult to transfer multiple paths of oil and parts in the joint are easy to wear in the background technology.
In order to achieve the purpose, the utility model provides the following technical scheme: a hydraulic oil rotary joint comprises a rotary joint body, wherein one end of the rotary joint body is provided with a shell, and one end of the shell far away from the main body of the rotary joint is provided with a second joint, the outer surface of the main body of the rotary joint is provided with a high-pressure shaft body interface, the inside of the main body of the rotary joint is provided with a rotary mandrel, and one end of the rotating mandrel is provided with oil ports, four groups of the oil ports are arranged, one side of the surface of the shell is provided with a low-pressure shell body supplement interface, and the surface of the shell at one side of the supplement interface of the low-pressure shell is provided with a high-pressure shell interface, one side of the surface of the second joint is provided with a low-pressure shell interface, and the surface of the second joint at one side of the low-pressure shell interface is provided with a low-pressure shaft body interface, one end of the second joint is provided with a flange plate, an oil way is arranged in the second connector, and an O-shaped ring is installed at one end in the rotary connector main body.
Preferably, a fastening bolt is installed at one end of the interior of the rotary joint main body, and a first ball bearing is installed at the joint of the rotary joint main body and the shell.
Preferably, the outer walls of the two sides of the shell are both fixed with arc-shaped plates, and the arc-shaped plates are made of stainless steel.
Preferably, a second ball bearing is installed at one end inside the second joint, and a sealing ring is installed at one end inside the shell.
Preferably, an auxiliary sealing ring is installed on one side of the interior of the second joint, and a main sealing ring is installed at the joint of the second joint and the shell.
Preferably, the rotary seals are arranged in the shells on two sides of the high-pressure shell connector and adopt the cyanogen butadiene rubber.
Preferably, the low-pressure shell interface and the low-pressure shaft body interface are communicated with each other.
Preferably, the main sealing ring is a silicon carbide sealing ring, and the auxiliary sealing ring is a silicon carbide sealing ring.
Preferably, one side of the surface of the arc plate is fixed with a fixing plate, and one end, far away from the arc plate, of the fixing plate is provided with a groove.
Compared with the prior art, the utility model has the beneficial effects that: the hydraulic oil rotary joint not only realizes the multi-channel connection function of the joint, enables the joint to operate stably, durably, reliably, solidly and flexibly, prolongs the service life of the joint, but also can quickly finish the installation work of the rotary joint and is convenient for workers to carry out construction work;
(1) the high-pressure shaft body interface and the low-pressure shaft body interface are arranged, the four groups of oil ports can be connected to an external hydraulic oil supply end, the high-pressure shaft body interface and the high-pressure shell interface are connected to a high-pressure oil path, the low-pressure shell interface and the low-pressure shaft body interface are connected to a low-pressure oil path, and the low-pressure shell supplement interface serves as a supplement oil path interface in the process and helps oil path oil pressure balance in the rotary joint main body, so that the multi-path connection function of the joint is realized;
(2) the rotary joint is provided with the sealing ring, the first ball bearing and the like, the sealing ring, the O-shaped ring and the rotary seal are made of the butadiene-acrylonitrile rubber, normal work can be kept under high vacuum, high and low temperature and various corrosive environments, and the sealing performance of the joint is improved;
(3) through being provided with recess and arc etc. utilize the recess to install the fixed plate on adjacent two sets of hydraulic pressure oil pipe way, utilize fixed plate and arc to support this joint, install each oil line joint to appointed interface again to accomplish rotary joint's installation work fast, improve rotary joint's efficiency of construction.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a schematic cross-sectional front view of the present invention;
FIG. 3 is a schematic diagram of a side view of the oil port of the present invention;
FIG. 4 is a schematic side view of a low-pressure spool interface according to the present invention;
FIG. 5 is a schematic view of a low-pressure housing interface according to the present invention;
in the figure: 1. a rotary joint body; 2. rotating the mandrel; 3. an oil port; 4. a housing; 5. a second joint; 6. a high-pressure shaft body interface; 7. a low pressure housing supplement interface; 8. a high-pressure housing interface; 9. a low-pressure housing interface; 10. a low-pressure shaft body interface; 11. fastening a bolt; 12. a first ball bearing; 13. an O-shaped ring; 14. a second ball bearing; 15. a seal ring; 16. a primary seal ring; 17. a secondary seal ring; 18. an arc-shaped plate; 19. a fixing plate; 20. a groove; 21. a flange plate; 22. rotating and sealing; 23. an oil passage.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, an embodiment of the present invention is shown: a hydraulic oil rotary joint comprises a rotary joint main body 1, wherein a shell 4 is installed at one end of the rotary joint main body 1, a second joint 5 is installed at one end, away from the rotary joint main body 1, of the shell 4, a second ball bearing 14 is installed at one end inside the second joint 5, a sealing ring 15 is installed at one end inside the shell 4, an auxiliary sealing ring 17 is installed at one side inside the second joint 5, a main sealing ring 16 is installed at the joint of the second joint 5 and the shell 4, the main sealing ring 16 is a silicon carbide sealing ring, and the auxiliary sealing ring 17 is a silicon carbide sealing ring;
a fastening bolt 11 is arranged at one end inside the rotary joint main body 1, a first ball bearing 12 and a second ball bearing 14 are arranged at the joint of the rotary joint main body 1 and the shell 4, so that the joint can run stably, durably, reliably, firmly and flexibly, and has a small friction coefficient, thereby prolonging the service life of the joint;
the outer surface of the rotary joint main body 1 is provided with a high-pressure shaft body interface 6, the inside of the rotary joint main body 1 is provided with a rotary mandrel 2, and one end of the rotary mandrel 2 is provided with oil ports 3, four groups of the oil ports 3 are arranged, the four groups of the oil ports 3 can be connected to an external hydraulic oil supply end, one side of the surface of the shell 4 is provided with a low-pressure shell body supplement interface 7, the low-pressure shell body supplement interface 7 is used as a supplement oil path interface, a high-pressure shell interface 8 is arranged on the surface of the shell 4 on one side of the low-pressure shell supplement interface 7, the high-pressure shaft body interface 6 and the high-pressure shell interface 8 are connected to a high-pressure oil way, rotary seals 22 are arranged inside the shells 4 on two sides of the high-pressure shell interface 8, the rotary seals 22 are made of butadiene-acrylonitrile rubber, one end of the second joint 5 is provided with a flange 21, an oil way 23 is arranged inside the second joint 5, and one end inside the rotary joint main body 1 is provided with an O-shaped ring 13;
the rotary joint main body 1, the shell 4 and the rotary seal 22 which are internally provided with a plurality of groups of sealing rings 15, O-shaped rings 13 and rotary seals 22 are made of butadiene-acrylonitrile rubber, so that the normal work can be kept under high vacuum, high and low temperature and various corrosive environments, and the sealing performance of the joint is improved;
a low-pressure shell interface 9 is mounted on one side of the surface of the second joint 5, a low-pressure shaft body interface 10 is mounted on the surface of the second joint 5 on one side of the low-pressure shell interface 9, the low-pressure shell interface 9 and the low-pressure shaft body interface 10 are communicated with each other, and the low-pressure shell interface 9 and the low-pressure shaft body interface 10 are connected to a low-pressure oil way;
the connecting function of multiple joints and multiple hydraulic oil paths is realized, the arrangement of rotary joints in the hydraulic oil paths is reduced as much as possible, and the multiple hydraulic oil paths are convenient for workers to overhaul;
arc-shaped plates 18 are fixed on the outer walls of two sides of the shell 4, the arc-shaped plates 18 are made of stainless steel, a fixing plate 19 is fixed on one side of the surface of each arc-shaped plate 18, a groove 20 is formed in one end, far away from the arc-shaped plates 18, of each fixing plate 19, and the fixing plates 19 are installed on two adjacent groups of hydraulic oil pipelines through the grooves 20;
the joint is supported by the fixing plate 19 and the arc-shaped plate 18, and then each oil way joint is installed on a designated interface, so that the installation work of the rotary joint is completed quickly, and the installation work of workers is facilitated;
when the connector is used, four groups of oil ports 3 can be connected to an external hydraulic oil supply end, at the moment, a high-pressure shaft body interface 6 and a high-pressure shell body interface 8 are connected to a high-pressure oil way, a low-pressure shell body interface 9 and a low-pressure shaft body interface 10 are connected to a low-pressure oil way, and a low-pressure shell body supplement interface 7 serves as a supplement oil way interface in the process to help the oil way oil pressure balance in a rotary connector main body 1, so that the multi-way connection function of the connector is realized, the arrangement of rotary connectors in the hydraulic oil way is reduced as much as possible, the multi-hydraulic oil way is convenient for workers to overhaul, the use convenience of the connector is improved, a plurality of groups of sealing rings 15, O-shaped rings 13 and rotary seals 22 which are arranged in the rotary connector main body 1, the shell 4 and the second connector 5 adopt the cyanogen butadiene rubber, the normal work can be kept under high vacuum, high and low temperature and various corrosive environments, and the sealing performance of the connector is improved, the rotary joint main part 1, there are first ball bearing 12 and second ball bearing 14 in the inside of shell 4 and second joint 5, can make the joint operate steadily reliable lasting, firm nimble, the coefficient of friction is little, thereby the life of extension joint, when the staff need install this joint, utilize recess 20 to install fixed plate 19 on adjacent two sets of hydraulic pressure oil pipe way, utilize fixed plate 19 and arc 18 to support this joint, install each oil pipe joint to appointed interface again, thereby accomplish rotary joint's installation work fast, be convenient for the staff to carry out installation work.
Claims (9)
1. The utility model provides a hydraulic oil rotary joint which characterized in that: comprises a rotary joint main body (1), a shell (4) is installed at one end of the rotary joint main body (1), a second joint (5) is installed at one end, far away from the rotary joint main body (1), of the shell (4), a high-pressure shaft body interface (6) is installed on the outer surface of the rotary joint main body (1), a rotary mandrel (2) is installed inside the rotary joint main body (1), an oil port (3) is installed at one end of the rotary mandrel (2), four groups of the oil ports (3) are arranged, a low-pressure shell supplementing interface (7) is installed at one side of the surface of the shell (4), a high-pressure shell interface (8) is installed at the surface of the shell (4) at one side of the low-pressure shell supplementing interface (7), a low-pressure shell interface (9) is installed at one side of the surface of the second joint (5), and a low-pressure shaft body interface (10) is installed at the surface of the second joint (5) at one side of the low-pressure shell interface (9), a flange plate (21) is installed at one end of the second connector (5), an oil way (23) is arranged inside the second connector (5), and an O-shaped ring (13) is installed at one end inside the rotary connector main body (1).
2. A hydraulic oil swivel joint as claimed in claim 1, wherein: fastening bolt (11) are installed to the inside one end of rotary joint main part (1), first ball bearing (12) are installed to the junction of rotary joint main part (1) and shell (4).
3. A hydraulic oil swivel joint as claimed in claim 1, wherein: arc-shaped plates (18) are fixed on the outer walls of the two sides of the shell (4), and the arc-shaped plates (18) are made of stainless steel.
4. A hydraulic oil swivel joint as claimed in claim 1, wherein: second ball bearing (14) are installed to the inside one end of second joint (5), sealing washer (15) are installed to the inside one end of shell (4).
5. A hydraulic oil swivel joint as claimed in claim 1, wherein: and an auxiliary sealing ring (17) is installed on one side of the interior of the second joint (5), and a main sealing ring (16) is installed at the joint of the second joint (5) and the shell (4).
6. A hydraulic oil swivel joint as claimed in claim 1, wherein: the rotary seal (22) is mounted inside the shell (4) on two sides of the high-pressure shell connector (8), and the rotary seal (22) is made of butadiene-acrylonitrile rubber.
7. A hydraulic oil swivel joint as claimed in claim 1, wherein: the low-voltage shell interface (9) and the low-voltage shaft body interface (10) are mutually communicated.
8. A hydraulic oil swivel joint as claimed in claim 5, wherein: the main sealing ring (16) is a silicon carbide sealing ring, and the auxiliary sealing ring (17) is a silicon carbide sealing ring.
9. A hydraulic oil swivel joint as claimed in claim 3, wherein: a fixing plate (19) is fixed on one side of the surface of the arc-shaped plate (18), and a groove (20) is formed in one end, far away from the arc-shaped plate (18), of the fixing plate (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122298357.0U CN215862238U (en) | 2021-09-22 | 2021-09-22 | Hydraulic oil rotary joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122298357.0U CN215862238U (en) | 2021-09-22 | 2021-09-22 | Hydraulic oil rotary joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215862238U true CN215862238U (en) | 2022-02-18 |
Family
ID=80255693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122298357.0U Active CN215862238U (en) | 2021-09-22 | 2021-09-22 | Hydraulic oil rotary joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215862238U (en) |
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2021
- 2021-09-22 CN CN202122298357.0U patent/CN215862238U/en active Active
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