CN218347689U - Improved bearing structure for spiral swing oil cylinder - Google Patents
Improved bearing structure for spiral swing oil cylinder Download PDFInfo
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- CN218347689U CN218347689U CN202222830306.2U CN202222830306U CN218347689U CN 218347689 U CN218347689 U CN 218347689U CN 202222830306 U CN202222830306 U CN 202222830306U CN 218347689 U CN218347689 U CN 218347689U
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- output shaft
- bearing
- cylinder
- cylinder body
- end cover
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Abstract
The utility model provides a modified is used for bearing arrangement of spiral swing hydro-cylinder, cylinder body including a spiral swing hydro-cylinder, the inner chamber of cylinder body is provided with an output shaft, outwards protruding formation shoulder along the circumferencial direction on the lateral wall of output shaft, all be provided with a thrust bearing along the axial of output shaft in the front and back side of shoulder, arbitrary thrust bearing all includes a bearing frame, one side of arbitrary bearing frame towards shoulder has set gradually first packing ring, the roller, the second packing ring, be provided with end cover and piston tooth cover in the cylinder body, the end cover is established in the one end of output shaft, the piston tooth cover is established on the output shaft, be provided with an annular support groove along the circumferencial direction on the inner wall of end cover, be provided with a support ring in the support groove. The utility model discloses its effect is: the thrust bearing has various models, and can meet the requirements of different models; the thrust bearing has a lower friction coefficient than a thrust washer, and the starting pressure is low under the condition of oil-free lubrication.
Description
Technical Field
The utility model relates to the field of machinary, especially, relate to spiral swing hydro-cylinder, especially a modified is used for bearing arrangement of spiral swing hydro-cylinder.
Background
The spiral swing oil cylinder is widely applied. The inner bearing is closely related to the flexible rotation, bending moment resistance, thrust resistance and friction loss performance of the tilt cylinder. In the prior art, two bearing structures are adopted to support an output shaft, one structure is shown in figure 1, a deep groove ball bearing is clamped into a shaft groove, but the type of the deep groove ball bearing is limited, the inner diameter and the outer diameter are fixed, the design space of a small oil cylinder is limited, and the deep groove ball bearing with a proper type is not available; the other structure is shown in figure 2, thrust gaskets are additionally arranged on two sides of a shaft shoulder step, but the friction resistance is slightly larger, and the starting pressure is higher under the condition of oil-free lubrication.
Disclosure of Invention
An object of the utility model is to provide a modified is used for bearing arrangement of spiral swing hydro-cylinder, this kind of modified is used for bearing arrangement of spiral swing hydro-cylinder to solve the technical problem that the friction resistance is big, start pressure is on the high side under the oil-free lubrication condition when the middle-size and small-size tilt cylinder space of prior art is not suitable for deep groove ball bearing, uses thrust gasket.
The utility model discloses a modified is used for bearing arrangement of spiral swing hydro-cylinder, cylinder body including a spiral swing hydro-cylinder, the inner chamber of cylinder body be provided with an output shaft, the lateral wall of output shaft on along the outside protruding axle shoulder portion that forms of circumferencial direction, follow the axial of output shaft be in the front and back side of axle shoulder portion all be provided with a thrust bearing, arbitrary one thrust bearing all separately include a bearing frame, arbitrary one the bearing frame orientation one side of axle shoulder portion set gradually first packing ring, roller, second packing ring, the cylinder body in be provided with end cover and piston tooth cover, the end cover establish the one end of output shaft, the piston tooth cover establish the output shaft on, the inner wall of end cover on be provided with an annular support groove along the circumferencial direction, the support inslot be provided with a support ring.
Further, the roller is a roller pin or a ball.
The working principle is as follows: the output shaft is provided with a shaft shoulder part, and the two sides of the shaft shoulder part are provided with thrust bearings, so that the thrust bearings are rich in types and low in friction coefficient.
Compared with the prior art, the utility model, its effect is positive and obvious. The thrust bearing has various models, and can meet the requirements of different models; the thrust bearing has a lower friction coefficient than the thrust washer and has a lower starting pressure under oil-free lubrication conditions.
Drawings
Fig. 1 is a schematic view of a deep groove ball bearing in the prior art.
Fig. 2 is a schematic diagram of a thrust washer in the prior art.
Fig. 3 is a schematic structural diagram of an improved bearing structure for a spiral oscillating cylinder according to the present invention.
Fig. 4 is a schematic enlarged partial view of an improved bearing structure for a spiral swing cylinder according to the present invention.
Detailed Description
Example 1
As shown in fig. 3 and 4, the solution provided by the present invention,
the utility model provides an improved bearing structure for spiral swing hydro-cylinder, cylinder body 1 including a spiral swing hydro-cylinder, the inner chamber of cylinder body 1 is provided with an output shaft 2, outwards protruding formation shaft shoulder 3 along the circumferencial direction on the lateral wall of output shaft 2, all be provided with a thrust bearing along the axial of output shaft 2 in the front and back side of shaft shoulder 3, arbitrary thrust bearing all includes a bearing frame 4 respectively, arbitrary one bearing frame 4 has set gradually first packing ring 5 towards one side of shaft shoulder 3, roller 6, second packing ring 7, be provided with end cover 8 and piston tooth cover 10 in the cylinder body 1, end cover 8 covers the one end of output shaft 2, piston tooth cover 10 covers on output shaft 2, be provided with an annular support groove along the circumferencial direction on the inner wall of end cover 8, be provided with a support ring 9 in the support groove.
Further, the rollers are roller pins or balls.
The working process of the embodiment:
the piston gear sleeve 10 moves back and forth under the action of hydraulic thrust to drive the output shaft 2 to swing. Thrust bearings are arranged on two sides of the shoulder part 3 of the output shaft, the second gasket 7 is close to the shaft shoulder, and an inner hole is positioned by the shaft shoulder; the first gasket 5 is far away from the shaft shoulder, and the outer diameter of the first gasket is positioned by the bearing seat; the middle part is a thrust needle roller, so that the bearing is connected with the cylinder barrel and the shaft, and the rotation is not interfered mutually. The hydraulic thrust of the piston is applied to the output shaft, and most of the axial thrust is borne by the bearing. A support ring 9 is arranged in the inner hole of the end cover and bears the radial force of the load.
Claims (2)
1. The utility model provides a modified is used for bearing arrangement of spiral swing hydro-cylinder, includes the cylinder body (1) of a spiral swing hydro-cylinder, the inner chamber of cylinder body (1) be provided with an output shaft (2), its characterized in that: the outer side wall of output shaft (2) on along the outside protruding axle shoulder portion (3) that forms of circumferencial direction, follow the axial of output shaft (2) be in the front and back side of axle shoulder portion (3) all be provided with a thrust bearing, arbitrary thrust bearing all include a bearing frame (4) separately, arbitrary bearing frame (4) orientation one side of axle shoulder portion (3) set gradually first packing ring (5), roller (6), second packing ring (7), cylinder body (1) in be provided with end cover (8) and piston tooth cover (10), end cover (8) cover establish the one end of output shaft (2), piston tooth cover (10) cover establish output shaft (2) on, the inner wall of end cover (8) on be provided with an annular support groove along the circumferencial direction, the support inslot be provided with a support ring (9).
2. An improved bearing structure for a spiral oscillating cylinder according to claim 1, wherein: the roller is a roller pin or a ball.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222830306.2U CN218347689U (en) | 2022-10-26 | 2022-10-26 | Improved bearing structure for spiral swing oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222830306.2U CN218347689U (en) | 2022-10-26 | 2022-10-26 | Improved bearing structure for spiral swing oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218347689U true CN218347689U (en) | 2023-01-20 |
Family
ID=84899031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222830306.2U Active CN218347689U (en) | 2022-10-26 | 2022-10-26 | Improved bearing structure for spiral swing oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218347689U (en) |
-
2022
- 2022-10-26 CN CN202222830306.2U patent/CN218347689U/en active Active
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