CN210423227U - Hydraulic cylinder with buffering effect - Google Patents
Hydraulic cylinder with buffering effect Download PDFInfo
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- CN210423227U CN210423227U CN201921150024.XU CN201921150024U CN210423227U CN 210423227 U CN210423227 U CN 210423227U CN 201921150024 U CN201921150024 U CN 201921150024U CN 210423227 U CN210423227 U CN 210423227U
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Abstract
The utility model discloses a hydraulic cylinder with buffer function, which comprises a cylinder barrel, a cylinder head and a cylinder bottom, wherein the cylinder head and the cylinder bottom are respectively arranged at the left and right end openings of the cylinder barrel; a piston and a piston rod are arranged in the cylinder barrel, one end of the piston rod is fixedly connected with the piston, and the other end of the piston rod penetrates through the cylinder head and extends to the outside; the piston divides the interior of the cylinder barrel into a rod cavity and a rodless cavity, and the cylinder barrel is respectively provided with an oil inlet and an oil outlet which are communicated with the rod cavity and the rodless cavity; a groove is formed in one side, facing the inside of the cylinder barrel, of the cylinder bottom, a buffer device is arranged in the groove, the buffer device comprises a sleeve shaft, a sleeve, a first spring and a second spring, the first spring is fixedly connected inside the sleeve, one end of the sleeve shaft is fixedly connected with the groove, the other end of the sleeve shaft is inserted into the sleeve and fixedly connected with the first spring, and the second spring is sleeved outside the sleeve shaft at the bottom end of the sleeve; a spring is arranged on one side of the piston, which faces the cylinder head, and a sponge layer is arranged on one side of the cylinder head, which faces the spring; the problem that the mechanical performance is reduced due to severe collision between the piston rod and the cylinder head or the cylinder bottom during reciprocating motion is effectively solved.
Description
Technical Field
The utility model relates to a pneumatic cylinder technical field specifically is a pneumatic cylinder with cushioning effect.
Background
When the hydraulic cylinder runs, the piston rod moves in the cylinder body in a reciprocating mode, the piston rod has certain mass and has large momentum under the driving of pressure, when the piston rod runs to a terminal, the moving piston rod often has mechanical collision with the cylinder head and the cylinder bottom, large impact pressure and noise are generated, the impact collision easily causes damage to the hydraulic cylinder and damage to related components such as pipes, valves and instruments, and the performance of mechanical equipment is greatly influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a pneumatic cylinder with cushioning effect to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a hydraulic cylinder with a buffering effect comprises a cylinder barrel, a cylinder head and a cylinder bottom, wherein the cylinder head and the cylinder bottom are respectively arranged at the left end opening and the right end opening of the cylinder barrel; a piston and a piston rod are arranged in the cylinder barrel, one end of the piston rod is fixedly connected with the piston, and the other end of the piston rod penetrates through the cylinder head and extends to the outside; the piston divides the interior of the cylinder barrel into a rod cavity and a rodless cavity, and the cylinder barrel is respectively provided with an oil inlet and an oil outlet which are communicated with the rod cavity and the rodless cavity;
a groove is formed in one side, facing the inside of the cylinder barrel, of the cylinder bottom, a buffer device is arranged in the groove, the buffer device comprises a sleeve shaft, a sleeve, a first spring and a second spring, the first spring is fixedly connected inside the sleeve, one end of the sleeve shaft is fixedly connected with the groove, the other end of the sleeve shaft is inserted into the sleeve and fixedly connected with the first spring, and the second spring is sleeved outside the sleeve shaft at the bottom end of the sleeve; and a spring is arranged on one side of the piston, which faces the cylinder head, and a sponge layer is arranged on one side of the cylinder head, which faces the spring.
Preferably, a packing box is arranged in the cylinder barrel, the packing box is sleeved outside the piston rod, a packing cavity is arranged between the packing box and the piston rod, and a sealing ring is arranged in the packing cavity.
Preferably, the cylinder bottom and the cylinder head are both fixed on the cylinder barrel through fixing bolts.
Preferably, the sleeve shaft is arranged in parallel with the cylinder barrel.
Preferably, the upper surface of the sleeve is paved with a rubber pad, so that the abrasion of the piston rod can be reduced on one hand, and the running speed of the piston rod can be reduced on the other hand, so that the impact force is reduced.
Preferably, the diameter of the piston rod is identical to the diameter of the groove.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses a be equipped with the recess, be equipped with buffer in the recess for piston rod and piston have fine buffering effect when moving towards the cylinder bottom, avoid piston or piston rod and cylinder bottom violent collision to lead to the damage of pneumatic cylinder itself and relevant parts such as piping, valves, instrument.
2. The utility model discloses a be equipped with spring and sponge layer for the piston has good buffering effect when moving towards the cylinder head, avoids piston and cylinder head direct contact collision, avoids cylinder head wearing and tearing or other parts to damage.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic structural view of the middle buffering device of the present invention.
In the figure: 1. a cylinder barrel; 2. a cylinder head; 3. a cylinder bottom; 4. a piston; 5. a piston rod; 6. a seal ring; 7. a rod cavity; 8. a rodless cavity; 9. an oil inlet; 10. an oil outlet; 11. fixing the bolt; 12. a groove; 13. a buffer device; 131. a sleeve shaft; 132. a sleeve; 133. a first spring; 134. a second spring; 14. a spring; 15. a sponge layer; 16. and (7) a rubber pad.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Referring to fig. 1-2, the present invention provides a technical solution: a hydraulic cylinder with a buffering effect comprises a cylinder barrel 1, a cylinder head 2 and a cylinder bottom 3, wherein the cylinder head 2 and the cylinder bottom 3 are respectively arranged at the left end opening and the right end opening of the cylinder barrel 1; a piston 4 and a piston rod 5 are arranged in the cylinder barrel 1, one end of the piston rod 5 is fixedly connected with the piston 4, and the other end of the piston rod passes through the cylinder head 2 and extends to the outside; the piston 4 divides the interior of the cylinder barrel 1 into a rod cavity 7 and a rodless cavity 8, and the cylinder barrel 1 is respectively provided with an oil inlet 9 and an oil outlet 10 which are communicated with the rod cavity 7 and the rodless cavity 8;
a groove 12 is formed in one side, facing the inside of the cylinder barrel 1, of the cylinder bottom 3, a buffer device 13 is arranged in the groove 12, the buffer device 13 comprises a sleeve shaft 131, a sleeve 132, a first spring 133 and a second spring 134, the first spring 133 is fixedly connected inside the sleeve 132, one end of the sleeve shaft 131 is fixedly connected with the groove 12, the other end of the sleeve shaft 131 is inserted into the sleeve 132 and fixedly connected with the first spring 133, and the second spring 134 is sleeved outside the bottom end of the sleeve shaft 131, at the bottom end of the sleeve 132; the side of the piston 4 facing the cylinder head 2 is provided with a spring 14, and the side of the cylinder head 2 facing the spring 14 is provided with a sponge layer 15.
Preferably, a packing box is arranged in the cylinder barrel 1, the packing box is sleeved outside the piston rod 5, a packing cavity is arranged between the packing box and the piston rod 5, and a sealing ring 6 is arranged in the packing cavity.
Preferably, the cylinder bottom 3 and the cylinder head 2 are fixed on the cylinder barrel 1 through fixing bolts 11.
Preferably, the sleeve shaft 131 is disposed parallel to the cylinder 1.
Preferably, rubber pad 16 is laid on the upper surface of sleeve 132.
Preferably, the diameter of the piston rod 5 corresponds to the diameter of the recess 12.
The working principle is as follows: when the piston type hydraulic cylinder is used, when the piston 4 and the piston rod 5 run towards the cylinder bottom 3 at a high speed, the piston rod 5 extrudes the rubber pad 16, the rubber pad 16 has a certain buffering effect, a part of pressure can be dissipated, the rubber pad 16 extrudes the sleeve 132, the sleeve 132 extrudes the first spring 133 and the second spring 134, and a part of component force can be dissipated until the first spring 133 and the second spring 134 are not deformed, at the moment, the piston rod 5 is positioned in the groove, the piston 4 slightly touches the cylinder bottom 3, and damage to the hydraulic cylinder itself, related parts such as a pipe, a valve and an instrument caused by severe collision between the piston 4 or the piston rod 5 and the cylinder bottom 3 is effectively avoided; when the piston 4 moves towards the cylinder head 2 at a high speed, the spring 14 firstly touches the sponge layer 15, the spring 14 and the sponge layer 15 are in phase change, a good buffering effect is achieved, until the spring 14 and the sponge layer 15 are not deformed, the spring 14 is separated between the piston 4 and the cylinder head 2, the piston 4 is enabled not to be in contact with the cylinder head 2, and cylinder head abrasion or other parts damage is avoided.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The hydraulic cylinder with the buffering function is characterized by comprising a cylinder barrel (1), a cylinder head (2) and a cylinder bottom (3), wherein the cylinder head (2) and the cylinder bottom (3) are respectively arranged at the left end opening and the right end opening of the cylinder barrel (1); a piston (4) and a piston rod (5) are arranged in the cylinder barrel (1), one end of the piston rod (5) is fixedly connected with the piston (4), and the other end of the piston rod penetrates through the cylinder head (2) and extends to the outside; the piston (4) divides the interior of the cylinder barrel (1) into a rod cavity (7) and a rodless cavity (8), and the cylinder barrel (1) is respectively provided with an oil inlet (9) and an oil outlet (10) which are communicated with the rod cavity (7) and the rodless cavity (8);
one side, facing the inside of the cylinder barrel (1), of the cylinder bottom (3) is provided with a groove (12), the groove (12) is provided with a buffer device (13), the buffer device (13) comprises a sleeve shaft (131), a sleeve (132), a first spring (133) and a second spring (134), the first spring (133) is fixedly connected inside the sleeve (132), one end of the sleeve shaft (131) is fixedly connected with the groove (12), the other end of the sleeve shaft (131) is inserted into the sleeve (132) and fixedly connected with the first spring (133), and the second spring (134) is sleeved outside the bottom end of the sleeve shaft (131) and the sleeve (132); a spring (14) is arranged on one side, facing the cylinder head (2), of the piston (4), and a sponge layer (15) is arranged on one side, facing the spring (14), of the cylinder head (2).
2. A hydraulic cylinder with a cushioning effect as set forth in claim 1, wherein: the piston rod packing device is characterized in that a packing box is arranged in the cylinder barrel (1), the packing box is sleeved outside the piston rod (5), a packing cavity is arranged between the packing box and the piston rod (5), and a sealing ring (6) is arranged in the packing cavity.
3. A hydraulic cylinder with a cushioning effect as set forth in claim 1, wherein: the cylinder bottom (3) and the cylinder head (2) are fixed on the cylinder barrel (1) through fixing bolts (11).
4. A hydraulic cylinder with a cushioning effect as set forth in claim 1, wherein: the sleeve shaft (131) is arranged in parallel with the cylinder barrel (1).
5. A hydraulic cylinder with a cushioning effect as set forth in claim 1, wherein: and a rubber pad (16) is paved on the upper surface of the sleeve (132).
6. A hydraulic cylinder with a cushioning effect as set forth in claim 1, wherein: the diameter of the piston rod (5) is consistent with that of the groove (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921150024.XU CN210423227U (en) | 2019-07-22 | 2019-07-22 | Hydraulic cylinder with buffering effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921150024.XU CN210423227U (en) | 2019-07-22 | 2019-07-22 | Hydraulic cylinder with buffering effect |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210423227U true CN210423227U (en) | 2020-04-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921150024.XU Active CN210423227U (en) | 2019-07-22 | 2019-07-22 | Hydraulic cylinder with buffering effect |
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| CN (1) | CN210423227U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113175459A (en) * | 2021-03-18 | 2021-07-27 | 宣化钢铁集团有限责任公司 | Hydraulic cylinder variable throttling rear buffering device |
| CN114506111A (en) * | 2022-01-06 | 2022-05-17 | 武汉船用机械有限责任公司 | Large-bearing rotary hydraulic machine |
| CN117536943A (en) * | 2023-12-12 | 2024-02-09 | 扬州市永发气动液压设备有限公司 | Wear-resistant hydraulic cylinder sleeve and production process |
-
2019
- 2019-07-22 CN CN201921150024.XU patent/CN210423227U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113175459A (en) * | 2021-03-18 | 2021-07-27 | 宣化钢铁集团有限责任公司 | Hydraulic cylinder variable throttling rear buffering device |
| CN114506111A (en) * | 2022-01-06 | 2022-05-17 | 武汉船用机械有限责任公司 | Large-bearing rotary hydraulic machine |
| CN117536943A (en) * | 2023-12-12 | 2024-02-09 | 扬州市永发气动液压设备有限公司 | Wear-resistant hydraulic cylinder sleeve and production process |
| CN117536943B (en) * | 2023-12-12 | 2024-05-17 | 扬州市永发气动液压设备有限公司 | Wear-resistant hydraulic cylinder sleeve and production process |
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