CN216009104U - Hydraulic cylinder barrel and flange connecting structure - Google Patents
Hydraulic cylinder barrel and flange connecting structure Download PDFInfo
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- CN216009104U CN216009104U CN202122401451.4U CN202122401451U CN216009104U CN 216009104 U CN216009104 U CN 216009104U CN 202122401451 U CN202122401451 U CN 202122401451U CN 216009104 U CN216009104 U CN 216009104U
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- conical surface
- flange
- cylinder barrel
- diameter
- inner hole
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Abstract
The utility model discloses pneumatic cylinder and flange joint structure, the cylinder front end sets up the boss, is the external conical surface behind the boss, and the major diameter of the external conical surface connects the boss external diameter, and the path of the external conical surface connects the stack shell; the front end of the flange is provided with a large inner hole, an inner conical surface is arranged behind the large inner hole, and the large diameter of the inner conical surface is connected with the large inner hole; the length and the taper of the outer conical surface of the cylinder barrel and the inner conical surface of the flange are the same; the diameter of the boss of the cylinder barrel is larger than that of the large inner hole of the flange, and the diameter of the outer conical surface of the cylinder barrel is larger than that of the inner conical surface of the flange; heating the flange to expand the diameter of the flange, assembling the flange on the cylinder barrel, assembling a boss of the cylinder barrel and a large inner hole of the flange in an interference manner, and assembling an outer conical surface of the cylinder barrel and an inner conical surface of the flange in an interference manner. The utility model has low processing cost and simplified structure; when the rear cavity of the hydraulic cylinder does work, the fastening part bears acting force by the cylinder barrel of the holding surface and the conical surface of the flange, and the structure is reliable.
Description
Technical Field
The utility model relates to a pneumatic cylinder especially indicates a pneumatic cylinder and flange joint structure.
Background
The hydraulic cylinder is an actuating element for converting hydraulic energy into mechanical energy, and is widely applied to various machines. The hydraulic cylinder has the characteristics of high working strength and high working pressure.
The cylinder barrel of the hydraulic cylinder is connected with the flange through welding or threads, so that the workload is large and the technical requirement is high; the flange is directly forged on the cylinder barrel, so that the technical difficulty is high, the processing amount is large, and the cost is high.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a pneumatic cylinder and flange joint structure in order to solve the weak point that exists among the above-mentioned background art.
The hydraulic cylinder barrel and flange connecting structure is characterized in that a boss is arranged at the front end of the cylinder barrel, an outer conical surface is arranged behind the boss, the large diameter of the outer conical surface is connected with the outer diameter of the boss, and the small diameter of the outer conical surface is connected with a cylinder body; the front end of the flange is provided with a large inner hole, an inner conical surface is arranged behind the large inner hole, and the large diameter of the inner conical surface is connected with the large inner hole; the length and the taper of the outer conical surface of the cylinder barrel and the inner conical surface of the flange are the same; the diameter of the boss of the cylinder barrel is larger than that of the large inner hole of the flange, and the diameter of the outer conical surface of the cylinder barrel is larger than that of the inner conical surface of the flange; heating the flange to expand the diameter of the flange, assembling the flange on the cylinder barrel, assembling a boss of the cylinder barrel and a large inner hole of the flange in an interference manner, and assembling an outer conical surface of the cylinder barrel and an inner conical surface of the flange in an interference manner.
Preferably, the front end of the flange is provided with a large inner hole, an inner conical surface is arranged behind the large inner hole, the large diameter of the inner conical surface of the flange is smaller than that of the large inner hole, a small inner hole is arranged behind the inner conical surface of the flange, and the small diameter of the inner conical surface is connected with the small inner hole; the taper of the outer conical surface of the cylinder barrel is the same as that of the inner conical surface of the flange, and the length of the outer conical surface of the cylinder barrel is larger than that of the inner conical surface of the flange.
The utility model discloses a hydraulic cylinder and flange connection structure, heating the flange to expand its diameter, then assembling the flange on the cylinder, the cylinder and flange interference fit; by optimizing the flange structure, the large diameter of the inner conical surface is smaller than the large inner hole, so that machining errors can be prevented, and the large inner hole of the flange cannot be effectively matched with the outer diameter of the boss of the cylinder barrel due to the fact that the inner conical surface of the flange crosses over the outer conical surface of the cylinder barrel during assembly; through set up little hole at flange inner cone back, can effectively reduce colliding with of flange inner cone path department when assembling, also can prevent that the flange assembly is not in place, causes the path card of inner cone on the barrel, causes the conical surface can not effectively cooperate. The utility model has low processing cost and simplified structure; when the rear cavity of the hydraulic cylinder does work, the fastening part bears acting force by the cylinder barrel of the holding surface and the conical surface of the flange, and the structure is reliable.
Drawings
Fig. 1 is the structure diagram of the front end of the cylinder barrel of the hydraulic cylinder and flange connection structure of the present invention.
Fig. 2 is a schematic view of a flange structure according to an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of an embodiment of the present invention.
Fig. 4 is a schematic view of a second flange structure according to an embodiment of the present invention.
Fig. 5 is a schematic structural diagram of the second embodiment of the present invention.
Fig. 6 is a partial schematic view of fig. 5 at a.
1. A cylinder barrel; 11. a boss; 12. an outer conical surface; 13. a barrel body; 2. a flange; 21. a large inner bore; 22. an inner conical surface; 23. a small inner hole.
Detailed Description
The technical solution in the embodiment of the present invention is described below with reference to the drawings in the embodiment of the present invention.
Example one
As shown in fig. 1, 2 and 3, a boss 11 is arranged at the front end of the cylinder barrel 1, an outer conical surface 12 is arranged behind the boss 11, the large diameter of the outer conical surface 12 is connected with the outer diameter of the boss 11, and the small diameter of the outer conical surface 12 is connected with a barrel body 13; the front end of the flange 2 is provided with a large inner hole 21, an inner conical surface 22 is arranged behind the large inner hole 21, and the large diameter of the inner conical surface 22 is connected with the large inner hole 21; the length and the taper of the outer conical surface 12 of the cylinder barrel 1 and the length and the taper of the inner conical surface 22 of the flange 2 are the same; the diameter of the boss 11 of the cylinder barrel 1 is larger than that of the large inner hole 21 of the flange 2, and the diameter of the outer conical surface 12 of the cylinder barrel 1 is larger than that of the inner conical surface 21 of the flange 2; heating the flange 2 to expand the diameter of the flange, then assembling the flange 2 on the cylinder barrel 1, wherein the boss 11 of the cylinder barrel 1 is in interference fit with the large inner hole 21 of the flange 2, and the outer conical surface 12 of the cylinder barrel 1 is in interference fit with the inner conical surface 22 of the flange 2.
Example two
As shown in fig. 1, 4, 5 and 6, a boss 11 is arranged at the front end of the cylinder barrel 1, an outer conical surface 12 is arranged behind the boss 11, the large diameter of the outer conical surface 12 is connected with the outer diameter of the boss 11, and the small diameter of the outer conical surface 12 is connected with a barrel body 13;
the front end of the flange 2 is provided with a large inner hole 21, an inner conical surface 22 is arranged behind the large inner hole 21, the large diameter of the inner conical surface 22 is smaller than that of the large inner hole 21, a small inner hole 23 is arranged behind the inner conical surface 22, and the small diameter of the inner conical surface 22 is connected with the small inner hole 23; the taper of the outer conical surface 12 of the cylinder barrel 1 is the same as that of the inner conical surface 22 of the flange 2, and the length of the outer conical surface 12 of the cylinder barrel 1 is larger than that of the inner conical surface 22 of the flange 2;
heating the flange 2 to expand the diameter of the flange, then assembling the flange 2 on the cylinder barrel 1, wherein a boss 11 of the cylinder barrel 1 is in interference fit with a large inner hole 21 of the flange 2, and an outer conical surface 12 of the cylinder barrel 1 is in interference fit with an inner conical surface 22 of the flange 2;
by optimizing the structure of the flange 2, the large diameter of the inner conical surface 22 is smaller than that of the large inner hole 21, so that machining errors can be prevented, and the large inner hole 21 of the flange 2 cannot be effectively matched with the outer diameter of the boss 11 of the cylinder barrel 1 due to the fact that the inner conical surface 22 crosses the outer conical surface 12 of the cylinder barrel 1 during assembly; by arranging the small inner hole 23 behind the inner conical surface 22 of the flange 2, the collision of the small diameter part of the inner conical surface 22 during assembly can be effectively reduced, and the situation that the small diameter of the inner conical surface 22 is clamped on the cylinder body 13 due to improper assembly to cause the conical surface not to be effectively matched can be prevented.
Claims (2)
1. The hydraulic cylinder barrel and flange connecting structure is characterized in that a boss is arranged at the front end of the cylinder barrel, an outer conical surface is arranged behind the boss, the large diameter of the outer conical surface is connected with the outer diameter of the boss, and the small diameter of the outer conical surface is connected with a cylinder body; the front end of the flange is provided with a large inner hole, an inner conical surface is arranged behind the large inner hole, and the large diameter of the inner conical surface is connected with the large inner hole; the length and the taper of the outer conical surface of the cylinder barrel and the inner conical surface of the flange are the same; the diameter of the boss of the cylinder barrel is larger than that of the large inner hole of the flange, and the diameter of the outer conical surface of the cylinder barrel is larger than that of the inner conical surface of the flange; heating the flange to expand the diameter of the flange, assembling the flange on the cylinder barrel, assembling a boss of the cylinder barrel and a large inner hole of the flange in an interference manner, and assembling an outer conical surface of the cylinder barrel and an inner conical surface of the flange in an interference manner.
2. The connecting structure of the cylinder barrel and the flange of the hydraulic cylinder according to claim 1, wherein a large inner hole is formed in the front end of the flange, an inner conical surface is formed behind the large inner hole, the large diameter of the inner conical surface of the flange is smaller than that of the large inner hole, a small inner hole is formed behind the inner conical surface of the flange, and the small diameter of the inner conical surface is connected with the small inner hole; the taper of the outer conical surface of the cylinder barrel is the same as that of the inner conical surface of the flange, and the length of the outer conical surface of the cylinder barrel is larger than that of the inner conical surface of the flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122401451.4U CN216009104U (en) | 2021-10-04 | 2021-10-04 | Hydraulic cylinder barrel and flange connecting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122401451.4U CN216009104U (en) | 2021-10-04 | 2021-10-04 | Hydraulic cylinder barrel and flange connecting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216009104U true CN216009104U (en) | 2022-03-11 |
Family
ID=80523704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122401451.4U Active CN216009104U (en) | 2021-10-04 | 2021-10-04 | Hydraulic cylinder barrel and flange connecting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216009104U (en) |
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2021
- 2021-10-04 CN CN202122401451.4U patent/CN216009104U/en active Active
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