CN211202483U - Cylinder barrel capable of reducing influence of welding deformation of oil hole - Google Patents
Cylinder barrel capable of reducing influence of welding deformation of oil hole Download PDFInfo
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- CN211202483U CN211202483U CN201922349883.8U CN201922349883U CN211202483U CN 211202483 U CN211202483 U CN 211202483U CN 201922349883 U CN201922349883 U CN 201922349883U CN 211202483 U CN211202483 U CN 211202483U
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- cylinder barrel
- hydraulic cylinder
- thread section
- cylinder
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Abstract
The utility model discloses a cylinder barrel for reducing the influence of welding deformation of an oil hole, which comprises a hydraulic cylinder barrel body, the oil hole, a cylinder cover and a rubber ring; can place the rubber circle through setting up at the step face, extrude the rubber circle at step face and cylinder cap like this, realize preventing the leakage of hydraulic oil like this.
Description
Technical Field
The utility model relates to a mechanism field of pneumatic cylinder, concretely relates to reduce cylinder of oilhole welding deformation influence.
Background
Present pneumatic cylinder is provided with the oilhole (for the process of guaranteeing the pneumatic cylinder, the afterbody that is close to the cylinder of oilhole as far as possible) at the tail end of pole cylinder, and the oilhole lies in oil pipe and carries out the welded time, and the cylinder can generate heat and produce deformation, leads to the cylinder afterbody to produce deformation like this, because the cylinder cap need be connected to the afterbody of cylinder, when the cylinder afterbody produces deformation, cylinder and cylinder cap will appear the space like this in the complex, can produce the condition of pneumatic cylinder oil leak like this under highly compressed condition.
Disclosure of Invention
The not enough to above-mentioned prior art, the utility model provides a reduce cylinder of oilhole welding deformation influence has eliminated the produced influence of oilhole welding deformation, prevents that the hydraulic oil in the pneumatic cylinder from taking place to leak under highly compressed condition, reduces the defective percentage of product.
In order to achieve the above purpose, the utility model discloses a scheme: a cylinder barrel for reducing the influence of welding deformation of an oil hole comprises a hydraulic cylinder barrel body, the oil hole, a cylinder cover and a rubber ring, wherein the inner wall of the hydraulic cylinder barrel body comprises a working section and an internal thread section, the internal thread section is arranged on the inner wall of the hydraulic cylinder barrel body and is a tail end, the internal thread section of the inner wall of the hydraulic cylinder barrel body is the working section except the internal thread section, an external thread section matched with the internal thread section of the inner wall of the hydraulic cylinder is arranged on the cylinder cover, the hydraulic cylinder barrel body and the cylinder cover are connected in a threaded mode, the hydraulic cylinder barrel body is provided with the oil hole; the inner wall diameter of hydraulic cylinder internal thread section is greater than the diameter of working segment, because the difference of diameter forms the step face between internal thread section and the working segment like this, is provided with on the step face and has placed annular rubber circle, presses through the cylinder cap and realizes sealed on rubber circle, can effectually prevent like this to leak.
Preferably, the step surface is provided with an annular groove matched with the rubber ring, and one end of the cylinder cover extending into the cylinder body of the hydraulic cylinder is also provided with an annular groove matched with the rubber ring.
Preferably, a baffle plate with a radius larger than that of the hydraulic cylinder barrel is arranged on the cylinder cover, and a rubber gasket is also arranged between the baffle plate and the end part of the cylinder barrel.
Compared with the prior art, the utility model has the advantages of: 1. the rubber ring can be placed on the step surface, so that the rubber ring is extruded on the step surface and the cylinder cover, and the leakage of hydraulic oil is prevented; 2. the contact area of the step surface, the cylinder cover and the rubber ring is increased, so that leakage can be further prevented; 3. the multiple leakage-proof rubber rings are arranged, so that oil leaked to the internal thread section can be prevented from leaking to the outside.
Drawings
Fig. 1 is a sectional view of the present invention.
The hydraulic cylinder comprises a hydraulic cylinder body 1, a working section 1.1, an internal thread section 1.2, an oil hole 3, an oil hole 4, a cylinder cover 5, a step surface 6, an annular groove 7, a rubber ring 8, a rubber gasket 9 and a baffle plate.
Detailed Description
The drawings are now assembled to further explain the utility model.
As shown in figure 1, a cylinder barrel for reducing the influence of welding deformation of oil holes comprises a hydraulic cylinder barrel body 1, oil holes 2, a cylinder cover 3 and a rubber ring 6, wherein the inner wall of the hydraulic cylinder barrel body 1 comprises a working section 1.1 and an internal thread section 1.2, wherein the internal thread section 1.2 is arranged on the inner wall of the hydraulic cylinder barrel body 1 as a tail end, the internal thread section 1.2 of the inner wall of the hydraulic cylinder barrel body 1 except the internal thread section 1.1 is the working section 1.1 (the inner wall of the working section 1.1 is smooth), an external thread section matched with the internal thread section 1.2 of the inner wall of the hydraulic cylinder is turned on the cylinder cover 3 through a lathe, the hydraulic cylinder barrel body 1 is connected with the cylinder cover 3 in a thread mode, so that the hydraulic cylinder is sealed, the oil holes 2 are formed in the hydraulic cylinder barrel body 1 (the oil holes are arranged in a conventional position), the oil holes 2 are mutually communicated with the interior of the hydraulic, the oil hole 2 needs to be welded with an oil supply pipe, so that the hydraulic cylinder barrel 1 is easy to generate high temperature during welding, the hydraulic cylinder barrel 1 is easy to deform due to the high temperature, and the sealing performance of the cylinder cover 3 and the hydraulic cylinder barrel 1 can be influenced after the internal thread section 1.2 deforms as the oil hole 2 is close to the internal thread section 1.2 of the hydraulic cylinder barrel 1, namely the hydraulic cylinder in the prior art is easy to leak; the inner wall diameter of 1.2 of hydraulic cylinder barrel internal thread section is greater than the diameter of working segment 1.1, because the difference of diameter forms step face 4 between 1.2 of internal thread section and the working segment 1.1 like this, placed annular rubber circle 6 on step face 4, press through cylinder cap 3 and realize sealed on rubber circle 6, can effectually prevent like this to leak, after internal thread section 1.2 takes place the deformation, after the leakproofness of internal thread section 1.2 and cylinder cap 3 reduces, the tip extrusion of cylinder cap 3 is on step face 4. Sealing is achieved like this, sealing is not achieved through threaded matching of the cylinder cover and the hydraulic cylinder barrel body 1, the possibility of hydraulic oil leakage is reduced like this, meanwhile, the rubber ring 6 is arranged between the cylinder cover 3 and the step surface 4, when the end surfaces of the step surface 4 and the cylinder cover 3 are not flat, the arranged rubber ring 6 can prevent hydraulic oil from leaking out from the space between the step surface 4 and the cylinder cover 3, the sealing degree is high, hydraulic oil leakage can be prevented in a limited mode, and influences (hydraulic oil leakage) caused by deformation of the hydraulic cylinder barrel body 1 during welding of the oil hole are eliminated.
Open on step face 4 and have the ring channel 5 with rubber circle 6 matched with, the one end that stretches into the inside of pneumatic cylinder barrel 1 at cylinder cap 3 also opens has the ring channel 5 with rubber circle 6 matched with, step face 4 can be increased like this, the area of contact of cylinder cap 3 and rubber circle 6, the leakproofness between cylinder cap 3 and the pneumatic cylinder has been guaranteed like this, prevent like this that oil from leaking, also can prevent simultaneously that rubber circle 6 from screwing up or sealed in-process takes place to slide at the cylinder cap, the possibility that can effectual reduction hydraulic oil takes place to leak like this.
The baffle 8 with the radius larger than that of the hydraulic cylinder body 1 is fixed on the cylinder cover 3 in a welding or integral casting forming mode, the rubber gasket 7 is fixed between the baffle 8 and the end part of the cylinder barrel in a glue bonding mode, a small amount of oil can be leaked to the position of the internal thread section 1.2, the rubber gasket 7 can further prevent hydraulic oil leakage, multilayer insurance is achieved, and the hydraulic oil cannot be leaked.
Claims (3)
1. A cylinder barrel for reducing the influence of welding deformation of an oil hole comprises a hydraulic cylinder barrel body, the oil hole, a cylinder cover and a rubber ring, wherein the inner wall of the hydraulic cylinder barrel body comprises a working section and an internal thread section, the internal thread section is arranged on the inner wall of the hydraulic cylinder barrel body and is a tail end, the internal thread section of the inner wall of the hydraulic cylinder barrel body is the working section except the internal thread section, an external thread section matched with the internal thread section of the inner wall of the hydraulic cylinder is arranged on the cylinder cover, the hydraulic cylinder barrel body and the cylinder cover are connected in a threaded mode, the hydraulic cylinder barrel body is provided with the oil hole; its characterized in that, the inner wall diameter of hydraulic cylinder internal thread section is greater than the diameter of working segment, because the difference of diameter forms the step face between internal thread section and the working segment like this, is provided with on the step face and has placed annular rubber circle, presses through the cylinder cap and realizes sealed on rubber circle, can effectually prevent like this and leak.
2. The cylinder barrel of claim 1, wherein the step surface has an annular groove for engaging with the rubber ring, and the end of the cylinder head extending into the cylinder body has an annular groove for engaging with the rubber ring.
3. The cylinder barrel for reducing the influence of welding deformation of the oil hole as claimed in claim 2, wherein a baffle plate with a radius larger than that of the hydraulic cylinder barrel is arranged on the cylinder head, and a rubber gasket is also arranged between the baffle plate and the end part of the cylinder barrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922349883.8U CN211202483U (en) | 2019-12-24 | 2019-12-24 | Cylinder barrel capable of reducing influence of welding deformation of oil hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922349883.8U CN211202483U (en) | 2019-12-24 | 2019-12-24 | Cylinder barrel capable of reducing influence of welding deformation of oil hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211202483U true CN211202483U (en) | 2020-08-07 |
Family
ID=71855765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922349883.8U Active CN211202483U (en) | 2019-12-24 | 2019-12-24 | Cylinder barrel capable of reducing influence of welding deformation of oil hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211202483U (en) |
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2019
- 2019-12-24 CN CN201922349883.8U patent/CN211202483U/en active Active
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