CN214304629U - Integrated piston cylinder with top cap - Google Patents
Integrated piston cylinder with top cap Download PDFInfo
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- CN214304629U CN214304629U CN202023156846.4U CN202023156846U CN214304629U CN 214304629 U CN214304629 U CN 214304629U CN 202023156846 U CN202023156846 U CN 202023156846U CN 214304629 U CN214304629 U CN 214304629U
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- piston cylinder
- top cap
- cylinder body
- piston
- welding
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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model belongs to the field of piston cylinders, and relates to an integrated piston cylinder with a top cap, which comprises a piston cylinder body and a piston rod, wherein the piston rod and the piston cylinder body are coaxially arranged and are connected by the top cap; the top cap comprises a welding end, and the welding end is sleeved at the end head of the piston cylinder body; the welding end is fixed on the piston cylinder body in a welding mode; the piston rod penetrates through the top cap and then is installed on the piston cylinder body; by definition, matched means that the outside diameter of the weld end is no greater than the inside diameter of the piston cylinder. The guide device can effectively prolong the length of the guide section and can be stably connected with the piston cylinder.
Description
Technical Field
The utility model belongs to the piston cylinder field relates to a piston cylinder of integral type area hood.
Background
The existing mainstream is transported and pushed to adopt two festival (piston cylinder and piston rod) lifting modes, namely hydraulic oil is carried to the hydro-cylinder, after the hydro-cylinder is full of hydraulic oil, the first piston cylinder is pushed up, and when the piston cylinder is full of hydraulic oil, the second piston rod can be pushed up, thereby achieving the lifting effect. As shown in fig. 1.
The fixed sealing connection of the existing mainstream conveying top piston cylinder 2 and the piston rod needs to be realized by a top cap 1 (as shown in figure 3), threads are turned on the top of the piston cylinder and the bottom of a small top cap, and the piston cylinder and the piston rod are fixed through threaded connection (as shown in figure 2).
However, the applicant finds that in the practical application process:
1. the mainstream product has higher requirements on the quality of the small top cap, not only has the sealing effect to prevent oil leakage, but also ensures that the guide section of the mainstream product has enough length to prevent shaking after being heightened, and simultaneously, the coaxiality also needs to be met.
2. The main stream of the small top cap adopts a threaded connection mode, the small top cap is large in size and high in cost, the oil leakage risk exists, and the total stroke of the product is reduced.
SUMMERY OF THE UTILITY MODEL
The application provides a piston cylinder of integral type area hood, it can effectively prolong the guide section length to can be stably connected with the piston cylinder.
In order to achieve the technical purpose, the technical scheme adopted by the application is as follows: an integrated piston cylinder with a top cap comprises a piston cylinder body and a piston rod, wherein the piston rod and the piston cylinder body are coaxially arranged and are connected by the top cap; the top cap comprises a welding end, and the welding end is sleeved at the end head of the piston cylinder body; the welding end is fixed on the piston cylinder body in a welding mode; the piston rod penetrates through the top cap and then is installed on the piston cylinder body.
According to the technical scheme, one end, used for welding the top cap, of the piston cylinder body is provided with a connecting end, the inner diameter of the connecting end is smaller than that of the piston cylinder body main body, and the outer diameter of the connecting end is consistent with that of the piston cylinder body main body; the outer diameter of the welding end of the top cap is matched with the inner diameter of the connecting end of the piston cylinder body; by definition, matched means that the outside diameter of the welded end is no greater than the inside diameter of the connecting end of the piston cylinder.
As an improved technical scheme of the application, the length of the welding end of the top hat accounts for 8% -10% of the total length of the top hat.
As the improved technical scheme of the application, the top cap further comprises a sealing end, a sealing groove is formed in the sealing end, and a sealing ring is arranged in the sealing groove.
As the improved technical scheme of the application, the number of the sealing grooves is two.
As an improved technical scheme of the application, the length of the top cap is 10% -15% of the length of the piston rod.
Advantageous effects
This application integral type takes piston cylinder of hood, the hood passes through welding process with the piston cylinder and realizes being connected, reaches the integration of piston cylinder hood through whole excircle processing. Compared with the traditional small top cap threaded connection, the technical scheme of the application has no oil leakage risk; the length of the guide section (namely the length of the welding end) can be increased according to the requirement of a product so as to reduce the shaking of the lifting tool after the lifting tool is lifted; the welding end and the sealing end of the top cap are integrally processed, so that the coaxiality is ensured, and the structure of a hydraulic component is simplified; the overall weight and cost are reduced; the total stroke of the product use is increased, and the product competitiveness is improved.
Drawings
Fig. 1 shows a schematic view of a piston cylinder of the prior art.
FIG. 2 depicts a prior art threaded connection of a piston cylinder to a piston rod; in the drawings, 1, a top cap; and 2, a piston cylinder.
Fig. 3 illustrates a prior art top hat.
FIG. 4 is a schematic exploded view of the piston cylinder and the top cap of the present application, wherein 1 is a piston cylinder; 2. a top cap; 3. welding the end; 4. and sealing the ends.
FIG. 5 is a schematic view of the entire structure of the piston cylinder and the top cap of the present application, wherein 1 is a piston cylinder; 2. a top cap; 3. welding the end; 4. sealing the end; 5. and (7) welding the surfaces.
Detailed Description
In order to make the purpose and technical solution of the embodiments of the present invention clearer, the following description will clearly and completely describe the technical solution of the embodiments of the present invention by combining the drawings of the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. All other embodiments, which can be obtained by a person skilled in the art without any inventive work based on the described embodiments of the present invention, belong to the protection scope of the present invention.
It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
The meaning of "inside and outside" in the present invention means that the direction inside the pointing device is inside and vice versa for the device itself, rather than being specifically limited for the device mechanism of the present invention.
The term "connected" as used herein may mean either a direct connection between elements or an indirect connection between elements through other elements.
As shown in fig. 4 and 5, the piston cylinder with the integral top cap comprises a piston cylinder body 1 and a piston rod, wherein the piston rod and the piston cylinder body 1 are coaxially arranged and are connected by the top cap.
The top cap 2 comprises a welding end 3, and the welding end 3 is sleeved at the end of the piston cylinder body 1; and is fixed on the piston cylinder body 1 in a welding way; the piston rod penetrates through the top cap 2 and then is installed on the piston cylinder body 1.
The weld in this context is preferably a gap friction weld or an inertia friction weld, the weld face 5 being selected as the end face of the piston cylinder and the face where the weld end 3 transitions with the seal end 4 (this face being perpendicular to the axis of the top hat).
In order to ensure the integral sealing performance of the piston cylinder in the using process, one end of the piston cylinder body 1, which is used for welding the top cap 2, is provided with a connecting end, the inner diameter of the connecting end is smaller than that of the piston cylinder body main body, and the outer diameter of the connecting end is consistent with that of the piston cylinder body main body; the outer diameter of the welding end of the top cap 2 is matched with the inner diameter of the connecting end of the piston cylinder body, and the welding end of the top cap 2 is sleeved on the connecting end of the piston cylinder body; by definition, matched means that the outside diameter of the welded end is no greater than the inside diameter of the connecting end of the piston cylinder.
The length of the welding end of the top cap accounts for 8% -10% of the total length of the top cap, and the effective guide section of the top cap can be effectively guaranteed by controlling the length of the welding end. The effective guide section of the actual top cap penetrates through the whole top cap, and the length of the welding end of the top cap is properly prolonged, so that the effective guide section length of the top cap can be effectively prolonged.
In order to realize that the top cap and the piston rod are sealed without oil leakage, the top cap further comprises a sealing end, a sealing groove is formed in the sealing end, and a sealing ring is arranged in the sealing groove.
As the improved technical scheme, the number of the sealing grooves is two, and the two sealing grooves are arranged in parallel and are designed to be arranged along the radial direction of the top cap.
As an improved technical scheme of the application, the length of the top cap is 10% -15% of the length of the piston rod.
The above description is only for the embodiments of the present invention, and the description is specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several changes and modifications can be made, which all fall within the scope of the present invention.
Claims (6)
1. An integrated piston cylinder with a top cap comprises a piston cylinder body and a piston rod, wherein the piston rod and the piston cylinder body are coaxially arranged and are connected by the top cap; the piston cylinder is characterized in that the top cap comprises a welding end, and the welding end is sleeved at the end head of the piston cylinder; the welding end is fixed on the piston cylinder body in a welding mode; the piston rod penetrates through the top cap and then is installed on the piston cylinder body.
2. The one-piece piston cylinder with the top cap as claimed in claim 1, wherein one end of the piston cylinder body for welding the top cap is provided with a connecting end, the inner diameter of the connecting end is smaller than the inner diameter of the piston cylinder body, and the outer diameter of the connecting end is consistent with the outer diameter of the piston cylinder body; the outer diameter of the welding end of the top cap is matched with the inner diameter of the connecting end of the piston cylinder body.
3. The one-piece capped piston cylinder of claim 1, wherein the welded end length of the cap is between 8% and 10% of the total cap length.
4. The integrated piston cylinder with the top cap as claimed in claim 1, wherein the top cap further comprises a sealing end, a sealing groove is formed in the sealing end, and a sealing ring is arranged in the sealing groove.
5. The one-piece, top-hat piston cylinder of claim 4, wherein there are two seal slots.
6. The one-piece piston cylinder with the top cap as recited in claim 1, wherein the length of the top cap is 10% -15% of the length of the piston rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023156846.4U CN214304629U (en) | 2020-12-24 | 2020-12-24 | Integrated piston cylinder with top cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023156846.4U CN214304629U (en) | 2020-12-24 | 2020-12-24 | Integrated piston cylinder with top cap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214304629U true CN214304629U (en) | 2021-09-28 |
Family
ID=77860930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023156846.4U Active CN214304629U (en) | 2020-12-24 | 2020-12-24 | Integrated piston cylinder with top cap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214304629U (en) |
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2020
- 2020-12-24 CN CN202023156846.4U patent/CN214304629U/en active Active
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