CN204591865U - A kind of oil cylinder fuel inlet fitting - Google Patents
A kind of oil cylinder fuel inlet fitting Download PDFInfo
- Publication number
- CN204591865U CN204591865U CN201520114735.7U CN201520114735U CN204591865U CN 204591865 U CN204591865 U CN 204591865U CN 201520114735 U CN201520114735 U CN 201520114735U CN 204591865 U CN204591865 U CN 204591865U
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- Prior art keywords
- oil
- oil cylinder
- inlet pipe
- flange
- fuel inlet
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Abstract
The utility model discloses a kind of oil cylinder fuel inlet fitting, it comprises: oil inlet pipe, and its inside has axially extended oil-feed counterbore, and described oil inlet pipe has the connecting end for being connected with oil cylinder; Flange, it is peripheral that its fixed cover is located at described oil inlet pipe, and described flange inside offers the oil inlet passage with the conducting of described oil-feed counterbore; Sealing, it is located between described oil inlet pipe and flange.The oil cylinder fuel inlet fitting that the utility model provides, it can avoid fuel inlet fitting to crack because of stressed causing leakage of oil, thus reduces equipment failure.
Description
Technical field
The utility model relates to a kind of hydraulic joint, particularly relates to a kind of fuel inlet fitting.
Background technique
Cold rolling mill uses intermediate roll play to control template technology aborning usually, and intermediate roll play adopts hydraulic oil cylinder driving usually.As shown in Figure 1, system controls template by program according to plate wide control intermediate roll position, intermediate roll is moved up in the side perpendicular to rolling line by the driving of oil cylinder 2 ' in orbit, oil cylinder 2 ' is fixed on play cylinder frame 3 ', the piston rod head of oil cylinder 2 ' is fixed on memorial archway, by the detection feedback intermediate roll position of displacement transducer when play cylinder frame 3 ' is mobile.Because oil cylinder 2 ' structure is special, its integral installation is on play cylinder frame 3 ', and the structural design of the fuel inlet fitting 1 ' be connected with oil cylinder 2 ' adopts unconventional flange or threaded connection mode usually.
The fuel inlet fitting 1 ' of current use is integrated joint as shown in Figures 2 and 3.During use, the B face of joint connects with external oil pipe, and the A face of joint is fixed by four bolts and play cylinder frame 3 ', and fuel inlet fitting 1 ' is sealed by twice "O"-ring with the cylinder barrel of oil cylinder 2 '.Owing to can there is relative movement trend between fuel inlet fitting 1 ' and the cylinder barrel of oil cylinder 2 ', cause fuel inlet fitting 1 ' stressed, fuel inlet fitting 1 ' is long-term stressedly will be cracked and leakage of oil.
In addition, publication number is CN101979903A, publication date is on February 23rd, 2011, name is called that the Chinese patent literature of " fuel inlet fitting " discloses a kind of fuel inlet fitting, its oil-feeding elbow pipe is the integral structure bent by weldless tube, thus the connection bit decreased between each parts of fuel inlet fitting, ensure that the overall tightness of this fuel inlet fitting in practical set uses simultaneously, effectively prevent fuel inlet fitting from the course of the work oil leakage phenomenon occurring, but this kind of fuel inlet fitting can not prevent because of the stressed crackle leakage of oil caused.
Model utility content
The purpose of this utility model is to provide a kind of oil cylinder fuel inlet fitting, and it can overcome above-mentioned defect, avoids fuel inlet fitting to crack because of stressed and causes leakage of oil, thus reduces equipment failure.
In order to reach the object of above-mentioned model utility, the utility model provides a kind of oil cylinder fuel inlet fitting, and it comprises:
Oil inlet pipe, its inside has axially extended oil-feed counterbore, and described oil inlet pipe has the connecting end for being connected with oil cylinder;
Flange, it is peripheral that its fixed cover is located at described oil inlet pipe, and described flange inside offers the oil inlet passage with the conducting of described oil-feed counterbore;
Sealing, it is located between described oil inlet pipe and flange.
Oil cylinder fuel inlet fitting described in the utility model, have employed split-type structural, and namely oil inlet pipe and flange are respective independently parts.This structure is compared with the integral structure of fuel inlet fitting in prior art, because between oil inlet pipe with flange, non-integral is connected, oil inlet pipe and intermediate roll oil cylinder move simultaneously, rigid joint is not had with vibration cylinder frame, during work, joint is not deposited stressed, thus solves fuel inlet fitting and crack the problem causing leakage of oil because of stressed.
In oil cylinder fuel inlet fitting described in the utility model, the oil inlet passage of described flange is used for being communicated with external oil pipe; Described Sealing is used for sealing between described oil inlet pipe and flange, the position distribution of the seal on the surface of contact of oil inlet pipe and flange, the both sides of oil inlet passage.
When oil cylinder fuel inlet fitting described in the utility model uses, the connecting end of its oil inlet pipe can be connected with the rod chamber of oil cylinder, flange is connected with external oil pipe.During work, the hydraulic oil from external oil pipe enters the rod chamber of oil cylinder successively by the oil inlet passage of flange, the oil-feed counterbore of oil inlet pipe, and because piston rod head is fixed, the cylinder body of oil cylinder drives play cylinder frame to move to piston rod head side; When hydraulic oil enters oil cylinder from the cylinder bottom of oil cylinder, the cylinder body of oil cylinder drives play cylinder frame to move to the opposite direction of piston rod head side, and now the hydraulic oil of the rod chamber of oil cylinder is expelled to external oil pipe by the oil-feed counterbore of oil inlet pipe, the oil inlet passage of flange successively.The program is one of application scheme of the present utility model, and object is that working principle of the present utility model is described, not to restriction of the present utility model.
Further, in oil cylinder fuel inlet fitting described in the utility model, the connecting end of described oil inlet pipe is provided with outside thread, for being threaded with oil cylinder.
Further, in oil cylinder fuel inlet fitting described in the utility model, described oil inlet pipe at least comprises external diameter not to be waited and two sections that are mutually connected, the periphery of a section that described flange sleeve external diameter located therein is less, and is fixed between external diameter larger a section and tightening nut.
In such scheme, the platform that described oil inlet pipe external diameter larger a section and the less one section of junction of external diameter are formed because of external diameter difference is that described flange provides support, thus by tightening nut by fixing for described flange on the platform.
Further, oil cylinder fuel inlet fitting described in the utility model also comprises pressure-measuring head, and its pressure measurement end is located in oil-feed counterbore or oil inlet passage.This pressure-measuring head is for measuring hydraulic fluid pressure.
Oil cylinder fuel inlet fitting described in the utility model compared with prior art has the following advantages:
1) relative to the integral structure of prior art, split-type structural of the present utility model solves fuel inlet fitting and cracks the problem causing leakage of oil because of stressed, thus decreases equipment failure;
2) relative to the integral structure of prior art, split-type structural of the present utility model makes Product processing convenient;
3) relative to the integral structure of prior art, the parts of broken parts need when split-type structural of the present utility model makes product component damage, only be changed, cost-saving.
Accompanying drawing explanation
Fig. 1 is the application schematic diagram of fuel inlet fitting under a kind of mode of execution of prior art.
Fig. 2 is the structural representation of fuel inlet fitting under a kind of mode of execution of prior art.
Fig. 3 is the plan view of Fig. 2.
Fig. 4 is the structural representation of oil cylinder fuel inlet fitting described in the utility model under a kind of mode of execution.
Fig. 5 is the left view of Fig. 4.
Fig. 6 is the application schematic diagram of oil cylinder fuel inlet fitting described in the utility model under a kind of mode of execution.
Embodiment
To be described further oil cylinder fuel inlet fitting described in the utility model according to specific embodiment and Figure of description below, but this explanation does not form the improper restriction to technical solutions of the utility model.
Fig. 4 shows the structure of oil cylinder fuel inlet fitting described in the utility model under a kind of mode of execution, and Fig. 5 is the left view of Fig. 4.
As shown in Figure 4 and Figure 5, the oil cylinder fuel inlet fitting of the present embodiment comprises: oil inlet pipe 11, and it has and is provided with for what be connected with oil cylinder the externally threaded connecting end D mated with oil cylinder screw thread, one section of M that external diameter is larger, one section of N that external diameter is less, has the external thread section K mated with tightening nut 15; Oil inlet pipe 11 inside has the axially extended oil-feed counterbore C being opened on connecting end D; Flange 12, its inside offer oil inlet passage E and perpendicular to oil inlet passage E and with the through hole F of its conducting, the internal diameter of this through hole F mates with the external diameter of the N section of oil inlet pipe 11, flange 12 is sheathed on the periphery of the N section of oil inlet pipe 11 by through hole F, the platform G that the M section of oil inlet pipe 11 and N section junction are formed because of external diameter difference is that flange 12 provides support, and flange 12 is fixed on platform G by the external thread section K of oil inlet pipe 11 by two tightening nuts 15; The N section of oil inlet pipe 11 is in the oil inlet passage E intersection's reduced with flange 12 and in the radial direction of oil inlet pipe 11, have through hole H, makes oil-feed counterbore C and oil inlet passage E conducting; Flange 12 also has the pressure tap I for installing pressure-measuring head 14 with oil inlet passage E conducting; Flange 12 also has four bolt hole J for external oil pipe Flange joint; Sealing 13, it is located between oil inlet pipe 11 and flange 12, is distributed on the surface of contact of the N section of oil inlet pipe 11 and the through hole F of flange 12, the both sides of oil inlet passage E; Sealing 16, it is located at M section and the oil cylinder joint of oil inlet pipe 11; The surperficial corresponding Sealing position of oil inlet pipe 11 is provided with groove with accommodating Sealing; Pressure-measuring head 14, its pressure measurement end is located in oil inlet passage E by pressure tap I.
Fig. 6 shows the application schematic construction of oil cylinder fuel inlet fitting described in the utility model under a kind of mode of execution.
In conjunction with reference to figure 4-Fig. 6, oil cylinder 2 is fixed on play cylinder frame 3, and the piston rod head L of oil cylinder 2 is fixed on memorial archway; When the oil cylinder fuel inlet fitting 1 of the present embodiment uses, the connecting end D of its oil inlet pipe 11 is connected with the rod chamber P of oil cylinder 2, makes the oil-feed counterbore C of oil inlet pipe 11 and the rod chamber P conducting of oil cylinder 2; Flange 12 is connected with external oil pipe flange bolt by bolt hole J, makes the oil inlet passage E conducting of external oil pipe and flange 12.During work, the hydraulic oil from external oil pipe enters the rod chamber P of oil cylinder 2 successively by the oil inlet passage E of flange 12, the oil-feed counterbore C of oil inlet pipe 11, and because piston rod head L fixes, the cylinder body of oil cylinder 2 drives play cylinder frame 3 to move to piston rod head L side; When hydraulic oil enters oil cylinder 2 from the cylinder bottom of oil cylinder 2, the cylinder body of oil cylinder 2 drives play cylinder frame 3 to move to the opposite direction of piston rod head L side, and now the hydraulic oil of the rod chamber P of oil cylinder 2 is expelled to external oil pipe by the oil-feed counterbore C of oil inlet pipe 11, the oil inlet passage E of flange 12 successively.
It should be noted that above cited embodiment is only specific embodiment of the utility model.Obvious the utility model is not limited to above embodiment, and the similar change thereupon made or distortion are that those skilled in the art can directly draw from content disclosed in the utility model or be easy to just associate, and all should belong to protection domain of the present utility model.
Claims (4)
1. an oil cylinder fuel inlet fitting, is characterized in that, comprising:
Oil inlet pipe, its inside has axially extended oil-feed counterbore, and described oil inlet pipe has the connecting end for being connected with oil cylinder;
Flange, it is peripheral that its fixed cover is located at described oil inlet pipe, and described flange inside offers the oil inlet passage with the conducting of described oil-feed counterbore;
Sealing, it is located between described oil inlet pipe and flange.
2. oil cylinder fuel inlet fitting as claimed in claim 1, it is characterized in that, the connecting end of described oil inlet pipe is provided with outside thread, for being threaded with oil cylinder.
3. oil cylinder fuel inlet fitting as claimed in claim 1, it is characterized in that, described oil inlet pipe at least comprises external diameter not to be waited and two sections that are mutually connected, the periphery of a section that described flange sleeve external diameter located therein is less, and is fixed between external diameter larger a section and tightening nut.
4. oil cylinder fuel inlet fitting as claimed in claim 1, it is characterized in that, also comprise pressure-measuring head, its pressure measurement end is located in oil-feed counterbore or oil inlet passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520114735.7U CN204591865U (en) | 2015-02-17 | 2015-02-17 | A kind of oil cylinder fuel inlet fitting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520114735.7U CN204591865U (en) | 2015-02-17 | 2015-02-17 | A kind of oil cylinder fuel inlet fitting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204591865U true CN204591865U (en) | 2015-08-26 |
Family
ID=53928023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520114735.7U Active CN204591865U (en) | 2015-02-17 | 2015-02-17 | A kind of oil cylinder fuel inlet fitting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204591865U (en) |
-
2015
- 2015-02-17 CN CN201520114735.7U patent/CN204591865U/en active Active
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |