CN216343138U - Split pin shaft installed on oil cylinder and oil cylinder - Google Patents
Split pin shaft installed on oil cylinder and oil cylinder Download PDFInfo
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- CN216343138U CN216343138U CN202121793729.0U CN202121793729U CN216343138U CN 216343138 U CN216343138 U CN 216343138U CN 202121793729 U CN202121793729 U CN 202121793729U CN 216343138 U CN216343138 U CN 216343138U
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- pin shaft
- oil cylinder
- earrings
- wall
- cylinder
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Abstract
The utility model discloses a split pin shaft arranged on an oil cylinder, which comprises a pin shaft body and pin shaft earrings, wherein the pin shaft body is sleeved on the outer wall of a cylinder barrel of the oil cylinder, the pin shaft body is symmetrically provided with mounting openings, the lower ends of the pin shaft earrings are connected in the mounting openings in a matching manner, the outer walls of the lower ends of the pin shaft earrings are attached to the inner wall of the pin shaft body, the lower ends of the pin shaft earrings are attached to the outer wall of the cylinder barrel, and the connecting parts of the pin shaft earrings and the outer sides of the pin shaft body form welding parts through welding. The oil cylinder comprises a cylinder barrel, wherein the split pin shaft is arranged in the middle of the cylinder barrel. Through the mode, the split pin shaft and the oil cylinder which are arranged on the oil cylinder divide the middle pin shaft into the pin shaft lug ring and the pin shaft body for split processing and assembly, and the split pin shaft and the oil cylinder are short in production period, low in cost and high in reliability.
Description
Technical Field
The utility model relates to the field of oil cylinders, in particular to a split pin shaft arranged on an oil cylinder and the oil cylinder.
Background
For a conventional hydraulic oil cylinder with a middle shaft pin, the middle shaft pin is generally of an integral free forging structure, and the integral structure is long in production period, high in cost and difficult to machine.
Disclosure of Invention
The utility model mainly solves the technical problem of providing the split pin shaft and the oil cylinder which are arranged on the oil cylinder, the middle pin shaft is divided into the pin shaft lug ring and the pin shaft body for split processing and assembly, the production period is short, the cost is lower, and the reliability is high.
In order to solve the technical problems, the utility model adopts a technical scheme that: the utility model provides an install split type round pin axle on hydro-cylinder, includes round pin axle body and round pin axle earrings, the round pin axle body cover is established on the cylinder outer wall of hydro-cylinder, the last symmetry of round pin axle body has seted up the installation opening, the lower extreme cooperation of round pin axle earrings is connected in the installation opening, the laminating of the lower extreme outer wall of round pin axle earrings is on the inner wall of round pin axle body, the lower extreme subsides of round pin axle earrings are established on the cylinder outer wall, the junction in the outside of round pin axle earrings and round pin axle body forms the weld part through the welding.
In a preferred embodiment of the present invention, the cross section of the welding portion has a quadrilateral structure, and the outer wall of the lower end of the pin shaft earring and the inner wall of the pin shaft body form a first stressed portion.
In a preferred embodiment of the present invention, the lower end of the pin shaft earring is an arc surface attached to the outer wall of the cylinder barrel, and the arc surface is the second stressed portion.
In a preferred embodiment of the utility model, the pin shaft earrings and the pin shaft body are made of cold drawn pipes or capillary tubes.
In order to solve the technical problem, the utility model adopts another technical scheme that: the oil cylinder comprises a cylinder barrel, and the split pin shaft is arranged in the middle of the cylinder barrel.
The utility model has the beneficial effects that: the split pin shaft and the oil cylinder are arranged on the oil cylinder, the middle pin shaft is divided into the pin shaft lug ring and the pin shaft body to be processed and assembled in a split mode, the production period is short, the cost is low, and the reliability is high.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:
FIG. 1 is a schematic structural view of a preferred embodiment of a split pin shaft of the present invention;
FIG. 2 is a sectional view taken along line A-A of FIG. 1;
the parts in the drawings are numbered as follows: 1. the pin shaft body 11, the welding part 2, the pin shaft earrings 21, the arc surface 3 and the cylinder barrel.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. 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 to 2, a split pin shaft mounted on an oil cylinder includes a pin shaft body 1 and a pin shaft earring 2, the pin shaft body 1 is sleeved on the outer wall of a cylinder barrel 3 of the oil cylinder, mounting openings are symmetrically formed on the pin shaft body 1, the lower end of the pin shaft earring 2 is connected in the mounting openings in a matching manner, the outer wall of the lower end of the pin shaft earring 2 is attached to the inner wall of the pin shaft body 1, the lower end of the pin shaft earring 2 is attached to the outer wall of the cylinder barrel 3, and a welding portion 11 is formed at the joint of the pin shaft earring 2 and the outer side of the pin shaft body 1 by welding.
In addition, the cross section of the welding part 11 is of a quadrilateral structure, and the outer wall of the lower end of the pin shaft earring 2 and the inner wall of the pin shaft 1 body form a first stress part. The pin shaft earrings are inserted into the pin shaft body, and the periphery is sealed and welded, so that the stress mode of the middle pin shaft is improved, and larger push-pull force can be borne, namely: when the oil cylinder works, firstly, the bearing force is the contact surface (larger bearing area) between the pin shaft lug ring and the pin shaft body, but not the welding line, and the safety is higher. The pin shaft lug 4 and the pin shaft body 5 are welded together (the stress area is small).
In addition, the lower end of the pin shaft earring 2 is an arc surface 21 attached to the outer wall of the cylinder 3, and the arc surface 21 is a second stress part. The arc surface 21 of the pin shaft earring 2 is clamped on the excircle of the cylinder barrel 3, and when the oil cylinder works, the arc surface 21 matched between the pin shaft earring 2 and the cylinder barrel 3 can bear a part of force, so that the stress state of the middle pin shaft 2 is improved.
In addition, the pin shaft earrings 2 and the pin shaft body 1 are made of cold-drawn pipes or capillary pipes.
An oil cylinder comprises a cylinder barrel 3, and the split pin shaft is arranged in the middle of the cylinder barrel 3.
The split pin shaft and the oil cylinder are arranged on the oil cylinder, the middle pin shaft is divided into the pin shaft lug ring and the pin shaft body to be processed and assembled in a split mode, the production period is short, the cost is low, and the reliability is high.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by the present specification, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (5)
1. The utility model provides an install split type round pin axle on hydro-cylinder, its characterized in that, includes round pin axis body and round pin axle earrings, the round pin axis body cover is established on the cylinder outer wall of hydro-cylinder, the last symmetry of round pin axis body has seted up the installation opening, the lower extreme cooperation of round pin axle earrings is connected in the installation opening, the laminating of the lower extreme outer wall of round pin axle earrings is on the inner wall of round pin axle body, the lower extreme subsides of round pin axle earrings are established on the cylinder outer wall, the junction in the outside of round pin axle earrings and round pin axle body forms the weld part through the welding.
2. The split pin shaft installed on the oil cylinder according to claim 1, wherein the cross section of the welding part is a quadrilateral structure, and the outer wall of the lower end of the pin shaft earring and the inner wall of the pin shaft body form a first stress part.
3. The split pin shaft installed on the oil cylinder according to claim 2, wherein the lower end of the pin shaft earring is an arc surface attached to the outer wall of the cylinder barrel, and the arc surface is the second stress portion.
4. The split pin shaft installed on the oil cylinder according to claim 3, wherein the pin shaft earrings and the pin shaft body are made of cold drawn pipes or capillary pipes.
5. An oil cylinder, comprising a cylinder barrel, characterized in that the middle part of the cylinder barrel is provided with a split pin shaft as claimed in any one of claims 1 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121793729.0U CN216343138U (en) | 2021-08-03 | 2021-08-03 | Split pin shaft installed on oil cylinder and oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121793729.0U CN216343138U (en) | 2021-08-03 | 2021-08-03 | Split pin shaft installed on oil cylinder and oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216343138U true CN216343138U (en) | 2022-04-19 |
Family
ID=81168914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121793729.0U Active CN216343138U (en) | 2021-08-03 | 2021-08-03 | Split pin shaft installed on oil cylinder and oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216343138U (en) |
-
2021
- 2021-08-03 CN CN202121793729.0U patent/CN216343138U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |