CN220060103U - Pipeline fastening type hydraulic oil cylinder assembly - Google Patents
Pipeline fastening type hydraulic oil cylinder assembly Download PDFInfo
- Publication number
- CN220060103U CN220060103U CN202321291273.7U CN202321291273U CN220060103U CN 220060103 U CN220060103 U CN 220060103U CN 202321291273 U CN202321291273 U CN 202321291273U CN 220060103 U CN220060103 U CN 220060103U
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- front cover
- oil
- pipeline
- joint
- connector
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- 239000010720 hydraulic oil Substances 0.000 title claims abstract description 16
- 239000003921 oil Substances 0.000 claims abstract description 72
- 238000007789 sealing Methods 0.000 claims abstract description 45
- 210000004907 gland Anatomy 0.000 claims abstract description 13
- 210000002445 nipple Anatomy 0.000 claims description 4
- 241000309551 Arthraxon hispidus Species 0.000 claims description 2
- 238000004880 explosion Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Actuator (AREA)
Abstract
The utility model relates to the field of oil cylinders, in particular to a pipeline fastening type hydraulic oil cylinder assembly. The utility model aims to solve the technical problem of providing a sealing device capable of improving the sealing performance of pipeline connection and preventing hydraulic oil from leaking; meanwhile, the tightness of the pipeline connection is ensured, and the phenomenon of loosening and falling is prevented. A pipeline fastening type hydraulic cylinder assembly comprises a front cover, a cylinder barrel, a rear cover, a pull rod, a gland, a guide sleeve piston rod, a piston, a sealing ring, a supporting ring, a fixing sleeve, a buffer ring, a pipeline joint, a connector, a pre-tightening spring, a sealing gasket, a connecting nut, an inner joint, an oil pipe and a locking piece. The utility model improves the sealing performance of the pipeline connection and prevents hydraulic oil from leaking; meanwhile, the tightness of the pipeline connection is ensured, and the loosening and falling-off phenomena are prevented.
Description
Technical Field
The utility model relates to the field of oil cylinders, in particular to a pipeline fastening type hydraulic oil cylinder assembly.
Background
The hydraulic system is equipment which uses oil as a working medium and utilizes the pressure of the oil to operate a hydraulic executing mechanism through accessories such as a valve and the like, and the hydraulic system realizes output by changing the pressure to increase the acting force; the connection between the hydraulic cylinder and the oil pipe is required to be used for pipeline joints of various specifications, in order to prevent leakage, a sealing ring or a sealing gasket is usually arranged in the pipeline joint to seal the pipeline joint, so that hydraulic oil is prevented from being leaked, but because the hydraulic system is in a high-pressure state in normal operation, the common sealing mode is easy to leak, meanwhile, the tightness of the existing pipeline joint is also poor, the loosening phenomenon is easy to occur due to the high pressure of the hydraulic oil and vibration generated in the working process of the oil cylinder, and leakage and pipe explosion are seriously caused, so that the hydraulic system is invalid; therefore, development of a sealing device capable of improving the sealing property of the pipeline connection and preventing leakage of hydraulic oil is needed; meanwhile, the tightness of the pipeline connection is ensured, and the phenomenon of loosening and falling is prevented.
Disclosure of Invention
The utility model aims to overcome the defects that the common sealing mode is easy to leak, the tightness of the existing pipeline joint is poor, the loosening phenomenon is easy to occur due to the high pressure of hydraulic oil and vibration generated in the working process of an oil cylinder, and the leakage and pipe explosion are serious, so that a hydraulic system is invalid; meanwhile, the tightness of the pipeline connection is ensured, and the phenomenon of loosening and falling is prevented.
The utility model is achieved by the following specific technical means:
a pipeline fastening type hydraulic cylinder assembly comprises a front cover, a cylinder barrel, a rear cover, a pull rod, a gland, a guide sleeve piston rod, a piston, a sealing ring, a supporting ring, a fixing sleeve, a buffer ring and a pipeline joint; the center of the front cover is provided with a through hole, one side of the front cover is provided with an oil hole, and the oil hole is communicated with the through hole arranged in the center; the rear cover is provided with a central hole at one side close to the front cover, and an oil hole communicated with the central hole is arranged at one side of the rear cover; a cylinder barrel is arranged between the front cover and the rear cover, and two ends of the cylinder barrel are fixedly arranged on the front cover and the rear cover; the pull rod is fixedly arranged between the front cover and the rear cover through bolts; the gland is positioned at one side of the front cover and fixedly connected with the front cover through a pull rod, and a through hole is arranged in the center of the gland; the guide sleeve is fixedly arranged in a central through hole formed in the gland; the piston rod is positioned in the cylinder barrel, one end close to the front cover penetrates through the front cover and the guide sleeve to extend to the outside, and the piston rod is connected with the guide sleeve in a sliding fit manner; the piston is slidably arranged in the cylinder barrel, and is fixedly arranged at one end, close to the rear cover, of the piston rod through the fixing sleeve; the outer diameter surface of the piston is also provided with a plurality of clamping grooves, and a sealing ring and a supporting ring are fixedly arranged in the clamping grooves; the two support rings are fixedly arranged on two sides of the sealing ring; buffer rings are arranged on two sides of the piston and fixedly arranged on the piston rod; the oil holes arranged on one side of the front cover and the rear cover are fixedly provided with pipeline joints;
the pipeline joint comprises a connector, a pre-tightening spring, a sealing gasket, a connecting nut, an inner joint, an oil pipe and a locking piece; the lower end of the connector is fixedly connected with oil holes arranged on the front cover and the rear cover through threads; the lower side of the connector is also provided with a pre-tightening spring which is fixedly arranged in the oil hole; a sealing washer is fixedly arranged at the joint of the connector and the oil hole; the upper end of the connecting head is provided with a connecting nut, and the inner joint is fixedly connected with the connecting head through the connecting nut; the upper end of the inner joint is also provided with an oil pipe which is fixedly connected with the inner joint through a locking piece.
Furthermore, a conical sealing surface is arranged at the joint of the connector and the oil holes arranged on the front cover and the rear cover, and a sealing gasket is fixedly arranged on the conical sealing surface; the tightness of the joint of the connector and the oil hole is improved, and hydraulic oil leakage is prevented.
Furthermore, a conical sealing surface is arranged at the joint of the connector and the inner connector, and an elastic rubber layer is coated on the conical sealing surface arranged on the inner connector; the tightness of the joint of the connector and the nipple is improved, and meanwhile, the elastic force of the elastic rubber layer acts on the connecting nut through the nipple, so that the connecting nut has upward pretightening force, the connecting nut is prevented from loosening, the connection tightness of the nipple and the connector is reduced, and hydraulic oil leakage is caused.
Further, the locking piece is a locking clamp; the oil pipe is fixedly locked on the inner joint through the locking clamp.
Further, anti-skid lines are arranged on the inner diameter surface of the locking piece, which is contacted with the oil pipe; the connection tightness of the oil pipe and the locking piece is improved, and the oil pipe is prevented from falling off from the locking piece.
Further, the outer diameter surface of the inner joint, which is contacted with the oil pipe, is provided with anti-skid lines; the connection tightness of the inner joint and the oil pipe is improved, and the oil pipe is prevented from falling off from the inner joint.
Compared with the prior art, the utility model has the following beneficial effects:
the utility model improves the sealing performance of the pipeline connection and prevents hydraulic oil from leaking; meanwhile, the tightness of the pipeline connection is ensured, and the loosening and falling-off phenomena are prevented.
Drawings
Fig. 1 is a schematic perspective view of the present utility model.
Fig. 2 is a schematic cross-sectional view of the present utility model.
Fig. 3 is a schematic view of a partial structure of the present utility model.
The marks in the drawings are: 1-front cover, 2-cylinder, 3-rear cover, 4-pull rod, 5-gland, 6-guide sleeve, 7-piston rod, 8-piston, 9-sealing ring, 10-support ring, 11-fixed sleeve, 12-buffer ring, 13-pipeline joint, 131-connector, 132-pre-tightening spring, 133-sealing gasket, 134-connecting nut, 135-inner joint, 136-oil pipe and 137-locking piece.
Detailed Description
The utility model is further described below with reference to the accompanying drawings:
examples
1-3, the pipeline fastening type hydraulic oil cylinder assembly comprises a front cover 1, a cylinder barrel 2, a rear cover 3, a pull rod 4, a gland 5, a guide sleeve 6 piston rod 7, a piston 8, a sealing ring 9, a support ring 10, a fixed sleeve 11, a buffer ring 12 and a pipeline joint 13; the center of the front cover 1 is provided with a through hole, one side of the front cover 1 is provided with an oil hole, and the oil hole is communicated with the through hole arranged in the center; the rear cover 3 is provided with a central hole at one side close to the front cover 1, and an oil hole communicated with the central hole is arranged at one side of the rear cover 3; a cylinder barrel 2 is arranged between the front cover 1 and the rear cover 3, and two ends of the cylinder barrel 2 are fixedly arranged on the front cover 1 and the rear cover 3; the pull rod 4 is fixedly arranged between the front cover 1 and the rear cover 3 through bolts; the gland 5 is positioned on one side of the front cover 1 and is fixedly connected with the front cover 1 through a pull rod 4, and a through hole is formed in the center of the gland 5; the guide sleeve 6 is fixedly arranged in a central through hole arranged in the gland 5; the piston rod 7 is positioned in the cylinder barrel 2, one end, close to the front cover 1, penetrates through the front cover 1 and the guide sleeve 6 to extend to the outside, and the piston rod 7 is connected with the guide sleeve 6 in a sliding fit manner; the piston 8 is slidably arranged in the cylinder barrel 2, and the piston 8 is fixedly arranged at one end of the piston rod 7, which is close to the rear cover 3, through a fixed sleeve 11; the outer diameter surface of the piston 8 is also provided with a plurality of clamping grooves, and a sealing ring 9 and a supporting ring 10 are fixedly arranged in the clamping grooves; the two support rings 10 are fixedly arranged on the two sides of the sealing ring 9; buffer rings 12 are arranged on two sides of the piston 8, and the buffer rings 12 are fixedly arranged on the piston rod 7; the oil holes arranged on one side of the front cover 1 and the rear cover 3 are fixedly provided with a pipeline joint 13;
the pipeline joint 13 comprises a joint head 131, a pre-tightening spring 132, a sealing washer 133, a connecting nut 134, an inner joint 135, an oil pipe 136 and a locking piece 137; the lower end of the connector 131 is fixedly connected with oil holes arranged on the front cover 1 and the rear cover 3 through threads; the lower side of the connector 131 is also provided with a pre-tightening spring 132, and the pre-tightening spring 132 is fixedly arranged in the oil hole; a sealing washer 133 is fixedly arranged at the joint of the connector 131 and the oil hole; the upper end of the connector 131 is provided with a connecting nut 134, and the inner joint 135 is fixedly connected with the connector 131 through the connecting nut 134; the upper end of the inner joint 135 is also provided with an oil pipe 136, and the oil pipe 136 is fixedly connected with the inner joint 135 through a locking piece 137.
Working principle:
when the hydraulic device is used, the oil hole on the rear cover 3 is filled with oil, high-pressure oil enters the cylinder body on the left side of the piston 8, the piston 8 moves rightwards under the action of the high-pressure oil, meanwhile, the oil on the right side of the piston 8 is discharged from the oil hole of the front cover 1, and the piston 8 drives the piston rod 7 to move rightwards when moving rightwards, so that the piston rod 7 extends out of the hydraulic cylinder to complete a preset work task; then oil is fed into the oil hole on the front cover 1 of the hydraulic cylinder, high-pressure oil enters the cylinder body on the right side of the piston 8 and moves leftwards under the drive of the high-pressure oil, meanwhile, the oil in the cylinder body on the right side of the piston 8 is discharged from the oil hole of the rear cover 3, and when the piston 8 moves leftwards, the piston rod 7 is driven to move leftwards, so that the piston rod 7 is retracted into the hydraulic cylinder.
The hydraulic cylinder is provided with a pipeline joint 13 at oil holes of a front cover 1 and a rear cover 3, wherein the pipeline joint 13 comprises a connector 131, a pre-tightening spring 132, a sealing washer 133, a connecting nut 134, an inner connector 135, an oil pipe 136 and a locking piece 137; the conical sealing surface is arranged at the joint of the connector 131 and the oil hole, and the sealing gasket 133 is fixedly arranged at the conical sealing surface, so that the tightness of the joint of the connector 131 and the oil hole is improved, and hydraulic oil is prevented from leaking; the lower end of the connector 131 is provided with a pre-tightening spring 132, when the connector 131 is installed, the connector 131 compresses the pre-tightening spring 132 to enable the pre-tightening spring 132 to have upward elasticity, the connector 131 is enabled to have pre-tightening force through the elasticity of the pre-tightening spring 132, loosening of the threaded connection part of the connector 131 and the oil hole is prevented, and connection tightness of the connector 131 and the oil hole is guaranteed; meanwhile, the upper end of the connector 131 is fixedly connected with the inner joint 135 through a connecting nut 134, a conical sealing surface is arranged at the joint of the connector 131 and the inner joint 135, and an elastic rubber layer is coated on the conical sealing surface arranged on the inner joint 135; the tightness of the joint of the connector 131 and the inner joint 135 is improved, and meanwhile, the elastic force of the elastic rubber layer acts on the connecting nut 134 through the inner joint 135, so that the connecting nut has upward pretightening force, the connecting nut 134 is prevented from loosening, and the connection tightness of the connector 131 and the inner joint 135 is improved; the inner diameter surface of the locking piece 137 contacted with the oil pipe 136 and the outer diameter surface of the inner joint 135 contacted with the oil pipe 136 are provided with anti-skid lines, so that the connection tightness of the oil pipe 136 is improved, and the oil pipe 136 is prevented from falling off.
While the present disclosure has been described in detail with reference to exemplary embodiments, the present disclosure is not limited thereto, and it will be apparent to those skilled in the art that various modifications and changes may be made thereto without departing from the scope of the present disclosure.
Claims (6)
1. The pipeline fastening type hydraulic oil cylinder assembly is characterized by comprising a front cover (1), a cylinder barrel (2), a rear cover (3), a pull rod (4), a gland (5), a piston rod (7) of a guide sleeve (6), a piston (8), a sealing ring (9), a supporting ring (10), a fixing sleeve (11), a buffer ring (12) and a pipeline joint (13); the center of the front cover (1) is provided with a through hole, one side of the front cover (1) is provided with an oil hole, and the oil hole is communicated with the through hole arranged in the center; a central hole is formed in one side, close to the front cover (1), of the rear cover (3), and an oil hole is formed in one side of the rear cover (3) and communicated with the central hole; a cylinder barrel (2) is arranged between the front cover (1) and the rear cover (3), and two ends of the cylinder barrel (2) are fixedly arranged on the front cover (1) and the rear cover (3); the pull rod (4) is fixedly arranged between the front cover (1) and the rear cover (3) through bolts; the gland (5) is positioned at one side of the front cover (1) and is fixedly connected with the front cover (1) through the pull rod (4), and a through hole is arranged in the center of the gland (5); the guide sleeve (6) is fixedly arranged in a central through hole arranged in the gland (5); the piston rod (7) is positioned in the cylinder barrel (2), one end close to the front cover (1) penetrates through the front cover (1) and the guide sleeve (6) to extend to the outside, and the piston rod (7) is connected with the guide sleeve (6) in a sliding fit manner; the piston (8) is slidably arranged in the cylinder barrel (2), and the piston (8) is fixedly arranged at one end, close to the rear cover (3), of the piston rod (7) through the fixing sleeve (11); a plurality of clamping grooves are further formed in the outer diameter surface of the piston (8), and a sealing ring (9) and a supporting ring (10) are fixedly arranged in the clamping grooves; the two support rings (10) are fixedly arranged on two sides of the sealing ring (9); buffer rings (12) are arranged on two sides of the piston (8), and the buffer rings (12) are fixedly arranged on the piston rod (7); the oil holes arranged on one side of the front cover (1) and the rear cover (3) are fixedly provided with pipeline joints (13);
the pipeline joint (13) comprises a joint head (131), a pre-tightening spring (132), a sealing gasket (133), a connecting nut (134), an inner joint (135), an oil pipe (136) and a locking piece (137);
the lower end of the connector (131) is fixedly connected with oil holes arranged on the front cover (1) and the rear cover (3) through threads; the lower side of the connector (131) is also provided with a pre-tightening spring (132), and the pre-tightening spring (132) is fixedly arranged in the oil hole; a sealing gasket (133) is fixedly arranged at the joint of the connector (131) and the oil hole; the upper end of the connector (131) is provided with a connecting nut (134), and the inner connector (135) is fixedly connected with the connector (131) through the connecting nut (134); the upper end of the inner joint (135) is also provided with an oil pipe (136), and the oil pipe (136) is fixedly connected with the inner joint (135) through a locking piece (137).
2. The pipeline fastening type hydraulic cylinder assembly according to claim 1, wherein a conical sealing surface is arranged at the joint of the connector (131) and oil holes formed in the front cover (1) and the rear cover (3), and a sealing gasket (133) is fixedly arranged on the conical sealing surface.
3. The pipeline fastening hydraulic cylinder assembly according to claim 1, wherein a conical sealing surface is arranged at the joint of the connector (131) and the inner joint (135), and an elastic rubber layer is coated on the conical sealing surface arranged on the inner joint (135).
4. A line tightening hydraulic cylinder assembly as set forth in claim 1 wherein said locking member (137) is a locking clip.
5. A pipeline-fastened hydraulic cylinder assembly according to claim 1, wherein the locking member (137) is provided with anti-slip lines on an inner diameter surface contacting the oil pipe (136).
6. A pipeline-fastened hydraulic cylinder assembly according to claim 1, characterized in that the external diameter surface of the nipple (135) contacting the oil pipe (136) is provided with anti-slip lines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321291273.7U CN220060103U (en) | 2023-05-25 | 2023-05-25 | Pipeline fastening type hydraulic oil cylinder assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321291273.7U CN220060103U (en) | 2023-05-25 | 2023-05-25 | Pipeline fastening type hydraulic oil cylinder assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220060103U true CN220060103U (en) | 2023-11-21 |
Family
ID=88759165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321291273.7U Active CN220060103U (en) | 2023-05-25 | 2023-05-25 | Pipeline fastening type hydraulic oil cylinder assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220060103U (en) |
-
2023
- 2023-05-25 CN CN202321291273.7U patent/CN220060103U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |