CN213144929U - Lift cylinder with high-wear-resistance piston head - Google Patents
Lift cylinder with high-wear-resistance piston head Download PDFInfo
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- CN213144929U CN213144929U CN202021662921.1U CN202021662921U CN213144929U CN 213144929 U CN213144929 U CN 213144929U CN 202021662921 U CN202021662921 U CN 202021662921U CN 213144929 U CN213144929 U CN 213144929U
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Abstract
The utility model discloses a lift cylinder with high wear resistance piston head, which comprises a cylinder body, a drive assembly is arranged in the cylinder body, the drive assembly comprises a piston rod, the interior of the piston rod is hollow, the piston head is arranged at one end of the piston rod and is contacted with the inner wall of the cylinder body, an oil inlet pipe is also arranged in the piston rod, the oil inlet pipe passes through the piston head and can convey hydraulic oil into a first drive cavity formed by the piston head and the cylinder body, the piston rod is also internally provided with hydraulic oil, the hydraulic oil can flow to the outer side of the piston rod from the interior of the piston rod through an oil outlet and is positioned in a second drive cavity formed by the piston head, the cylinder body and the piston rod, the piston head is provided with an O-shaped ring, the piston head is also provided with two wear-resistant rings which are respectively positioned at two sides of the O-shaped ring, and the wear-resisting ring of engineering plastics makes the wear less, and O type circle both sides increase the spacer ring, have avoided O type circle to break away from O type ring groove.
Description
Technical Field
The utility model relates to a lift cylinder equipment field especially relates to a compound lift cylinder that has high wear resistance piston head.
Background
The lifting oil cylinder utilizes hydraulic oil to realize movable equipment, a piston rod and a piston head are arranged in the lifting oil cylinder, and the piston head is driven to move relatively through a piston pipe, so that the lifting purpose is realized. However, in the existing equipment, the structure of the piston head part is that the copper bush is filled with graphite, the piston head is in threaded connection with the piston rod, the structure of the copper bush is good in self-lubricating property, but certain abrasion loss exists, so that the sealing performance of the piston head is reduced, the service life of the piston head is short, and the threaded connection structure is easy to cause loosening and falling of the copper bush and the piston rod due to vibration of the centrifuge, so that the piston head and the inner wall of the cylinder barrel are clamped, and the scraping system is disabled.
Therefore, the present invention aims to provide a lift cylinder with a piston head having high wear resistance.
SUMMERY OF THE UTILITY MODEL
To overcome the above disadvantages, the present invention provides a lift cylinder with a piston head having high wear resistance.
In order to achieve the above purpose, the utility model discloses a technical scheme is: a lifting oil cylinder with a high-wear-resistance piston head comprises a cylinder body, a driving assembly is arranged in the cylinder body and comprises a piston rod, the interior of the piston rod is hollow, a piston head is arranged at one end of the piston rod, the piston head is contacted with the inner wall of the cylinder body, an oil inlet pipe is also arranged in the piston rod, the oil inlet pipe penetrates through the piston head and can convey hydraulic oil to a first driving cavity formed by the piston head and the cylinder body, the piston rod is also internally provided with hydraulic oil which can flow to the outer side of the piston rod through the oil outlet hole from the inside of the piston rod, and is positioned in a second driving cavity formed by the piston head, the cylinder body and the piston rod, the piston head is provided with an O-shaped ring, the piston head is also provided with two wear-resisting rings, and the O-shaped ring and the wear-resisting ring are respectively positioned at two sides of the O-shaped ring and are respectively contacted with the piston head and the inner wall of the cylinder body.
Preferably, the wear-resistant ring is made of high-molecular engineering plastics. The wear-resisting performance of the wear-resisting ring is ensured, so that the wear is smaller, and the metal structure of the piston head is not easy to damage.
Preferably, two sides of the O-shaped ring are respectively provided with a retaining ring. The setting of retaining ring has avoided O type circle to break away from the groove of O type circle because of the oil pressure promptly, causes the leakproofness to descend.
Preferably, the piston rod is fixedly connected with the piston head. Welding is generally used to ensure the strength of the connection.
Preferably, the piston head separates the first drive chamber and the second drive chamber. Namely, the relative movement of the piston rod and the cylinder body is realized through the change of hydraulic oil in the two driving cavities.
Preferably, one side of the cylinder body is further provided with an oil pipe seat, the oil pipe seat is provided with a first oil inlet channel and a second oil inlet channel, the first oil inlet channel is connected with the oil inlet pipe, and the second oil inlet channel is communicated with the interior of the piston rod. The hydraulic oil in the first driving cavity and the hydraulic oil in the second driving cavity are respectively conveyed, power is provided, and the lifting oil cylinder works.
Preferably, a left end cover and a right end cover are respectively arranged on two sides of the cylinder body, the left end cover is connected with the oil pipe seat, and the right end cover and the cylinder body form a first driving cavity. The stability of the connection of the cylinder body is guaranteed, and the cylinder body is convenient to connect with other parts.
Preferably, a limiting ring is further arranged in the first driving cavity, the limiting ring is clamped in the first driving cavity, and two ends of the limiting ring can respectively abut against the piston head and the right end cover. The moving distance of the piston head is ensured, the size of the first driving cavity is also ensured, the stability of the relative movement of the cylinder body and the piston rod is ensured, and the occurrence of faults is reduced.
The utility model relates to a lift cylinder with high abrasion piston head's beneficial effect is, novel piston head is welded fastening's structure with the structure of piston rod, difficult not hard up deformation, and engineering plastics wear ring makes the wear less, the indestructible metallic structure, O type circle both sides increase the spacer ring, avoided O type circle to break away from O type circle groove because of the oil pressure, guaranteed the wear resistance of piston head, make lift cylinder's life and result of use better, improved lift cylinder's application performance.
Drawings
Fig. 1 is a schematic view of a lift cylinder having a highly wear resistant piston head.
Fig. 2 is a partially enlarged view of the piston head portion.
Fig. 3 is a partially enlarged view of the oil pan base portion.
In the figure:
1-cylinder body, 2-drive component, 3-first drive cavity, 4-second drive cavity, 5-O-shaped ring, 6-wear-resistant ring, 7-retainer ring, 8-oil tube seat, 9-left end cover, 10-right end cover, 11-spacing ring,
21-piston rod, 22-piston head, 23-oil inlet pipe, 24-oil outlet hole,
81-first oil inlet channel, 82-second oil inlet channel.
Detailed Description
The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.
Referring to fig. 1-3, in the embodiment, the lift cylinder with the piston head having high wear resistance includes a cylinder 1, a driving assembly 2 is disposed inside the cylinder 1, the driving assembly 2 includes a piston rod 21, the inside of the piston rod 21 is hollow, the piston head 22 is disposed at one end of the piston rod 21, the piston head 22 contacts with the inner wall of the cylinder 1, an oil inlet pipe 23 is further disposed inside the piston rod 21, the oil inlet pipe 23 penetrates through the piston head 22 and can deliver hydraulic oil into a first driving chamber 3 formed by the piston head 22 and the cylinder 1, the piston rod 21 is also provided with hydraulic oil, the hydraulic oil can flow from the inside of the piston rod 21 to the outside of the piston rod 21 through an oil outlet 24 and is located in a second driving chamber 4 formed by the piston head 22, the cylinder 1 and the piston rod 21, the piston head 22 is provided with an O-ring 5, the piston head 22 is further provided with a wear-, and are respectively positioned at two sides of the O-shaped ring 5, and the O-shaped ring 5 and the wear-resisting ring 6 are respectively contacted with the piston head 22 and the inner wall of the cylinder body 1.
The wear-resistant ring 6 is made of high-molecular engineering plastics. I.e., the wear-resisting performance of the wear-resisting ring 6 is ensured, so that the wear is less and the metal structure of the piston head 22 is not easily damaged.
And two sides of the O-shaped ring 5 are respectively provided with a retaining ring 7. Namely, the arrangement of the retainer ring 7 avoids the reduction of the sealing performance caused by the separation of the O-shaped ring 5 from the groove of the O-shaped ring 5 due to the oil pressure.
The piston rod 21 is fixedly connected to the piston head 22. Welding is generally used to ensure the strength of the connection.
The piston head 22 separates the first drive chamber 3 and the second drive chamber 4. I.e. by a change of hydraulic oil inside the two drive chambers, a relative movement of the piston rod 21 and the cylinder 1 is achieved.
One side of the cylinder body 1 is further provided with an oil pipe seat 8, the oil pipe seat 8 is provided with a first oil inlet channel 81 and a second oil inlet channel 82, the first oil inlet channel 81 is connected with the oil inlet pipe 23, and the second oil inlet channel 82 is communicated with the interior of the piston rod 21. The hydraulic oil in the first driving cavity 3 and the hydraulic oil in the second driving cavity 4 are respectively conveyed, power is provided, and the lifting oil cylinder works.
The two sides of the cylinder body 1 are respectively provided with a left end cover 9 and a right end cover 10, the left end cover 9 is connected with the oil pipe seat 8, and the right end cover 10 and the cylinder body 1 form a first driving cavity 3. The stability of the connection of the cylinder body 1 is ensured, and the connection with other parts is convenient.
A limiting ring 11 is further arranged in the first driving cavity 3, the limiting ring 11 is clamped in the first driving cavity 3, and two ends of the limiting ring 11 can respectively abut against the piston head 22 and the right end cover 10. The moving distance of the piston head 22 is ensured, the size of the first driving cavity 3 is also ensured, the relative movement of the cylinder body 1 and the piston rod 21 is ensured to be stable, and the occurrence of faults is reduced.
The utility model provides a lift cylinder with high wearability piston head 22's beneficial effect is, novel piston head 22 is welded fastening's structure with the structure of piston rod 21, difficult not hard up deformation, and engineering plastics wear ring 6 makes the wear less, the indestructible metallic structure, O type circle 5 both sides increase the spacer ring, avoided O type circle 5 to break away from O type circle 5 grooves because of the oil pressure, the wear resistance of piston head 22 has been guaranteed, make lift cylinder's life and result of use better, lift cylinder's application property has been improved.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, so as not to limit the protection scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered in the protection scope of the present invention.
Claims (8)
1. A lift cylinder with a high-wear-resistance piston head is characterized in that: comprises a cylinder body, a driving component is arranged in the cylinder body, the driving component comprises a piston rod, the interior of the piston rod is hollow, a piston head is arranged at one end of the piston rod, the piston head is contacted with the inner wall of the cylinder body, an oil inlet pipe is also arranged in the piston rod, the oil inlet pipe penetrates through the piston head and can convey hydraulic oil to a first driving cavity formed by the piston head and the cylinder body, the piston rod is also internally provided with hydraulic oil which can flow to the outer side of the piston rod through the oil outlet hole from the inside of the piston rod, and is positioned in a second driving cavity formed by the piston head, the cylinder body and the piston rod, the piston head is provided with an O-shaped ring, the piston head is also provided with two wear-resisting rings, and the O-shaped ring and the wear-resisting ring are respectively positioned at two sides of the O-shaped ring and are respectively contacted with the piston head and the inner wall of the cylinder body.
2. The lift cylinder having a high wear resistance piston head as claimed in claim 1, wherein: the wear-resistant ring is made of high-molecular engineering plastics.
3. The lift cylinder having a high wear resistance piston head as claimed in claim 1, wherein: and two sides of the O-shaped ring are respectively provided with a retaining ring.
4. The lift cylinder having a high wear resistance piston head as claimed in claim 1, wherein: the piston rod is fixedly connected with the piston head.
5. The lift cylinder having a high wear resistance piston head as claimed in claim 1, wherein: the piston head separates the first drive chamber and the second drive chamber.
6. The lift cylinder having a high wear resistance piston head as claimed in claim 1, wherein: the cylinder is characterized in that an oil pipe seat is further arranged on one side of the cylinder body, a first oil inlet channel and a second oil inlet channel are arranged on the oil pipe seat, the first oil inlet channel is connected with an oil inlet pipe, and the second oil inlet channel is communicated with the interior of the piston rod.
7. The lift cylinder having a high wear resistance piston head as claimed in claim 1, wherein: the oil pipe driving device is characterized in that a left end cover and a right end cover are arranged on two sides of the cylinder body respectively, the left end cover is connected with the oil pipe seat, and the right end cover and the cylinder body form a first driving cavity.
8. The lift cylinder having a high wear resistance piston head as claimed in claim 1, wherein: the first drive intracavity still is provided with the spacing ring, the spacing ring card is established in first drive intracavity, just the both ends of spacing ring can support respectively to lean on piston head and right-hand member lid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021662921.1U CN213144929U (en) | 2020-08-11 | 2020-08-11 | Lift cylinder with high-wear-resistance piston head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021662921.1U CN213144929U (en) | 2020-08-11 | 2020-08-11 | Lift cylinder with high-wear-resistance piston head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213144929U true CN213144929U (en) | 2021-05-07 |
Family
ID=75737040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021662921.1U Active CN213144929U (en) | 2020-08-11 | 2020-08-11 | Lift cylinder with high-wear-resistance piston head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213144929U (en) |
-
2020
- 2020-08-11 CN CN202021662921.1U patent/CN213144929U/en active Active
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