CN203730450U - Engineering hydraulic cylinder - Google Patents
Engineering hydraulic cylinder Download PDFInfo
- Publication number
- CN203730450U CN203730450U CN201420078705.0U CN201420078705U CN203730450U CN 203730450 U CN203730450 U CN 203730450U CN 201420078705 U CN201420078705 U CN 201420078705U CN 203730450 U CN203730450 U CN 203730450U
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- China
- Prior art keywords
- hydraulic cylinder
- piston rod
- piston
- engineering
- oil
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- Expired - Fee Related
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Abstract
The utility model discloses an engineering hydraulic cylinder which comprises an ear ring, a front cover, a guide fixing sleeve, a piston rod, a piston, a hydraulic oil port, an oil drain valve, a rear cover, a locking bolt, a locking pressure plate, a sealing ring, a hydraulic cylinder barrel and a concave support. The engineering hydraulic cylinder is characterized in that the front cover is arranged at the front end of the hydraulic cylinder barrel, the rear cover is arranged at the rear end of the hydraulic cylinder barrel, the piston rod is arranged at an axial position of the hydraulic cylinder barrel, the piston is arranged at the inner side end of the piston rod and is positioned inside the hydraulic cylinder barrel, the ear ring is connected to the outer side end of the piston rod and the outer side of the front cover, the hydraulic oil port is formed in a side arm of the hydraulic cylinder barrel and is positioned on the inner side of the rear cover, the oil drain valve is arranged on the inner side of the hydraulic oil port, the guide fixing sleeve is arranged on the inner side of the front cover and is positioned inside the hydraulic cylinder barrel, and the concave support is arranged on the outer side of the rear cover. The engineering hydraulic cylinder has the advantages that the engineering hydraulic cylinder is reasonable in arrangement and structural design; loosening of the piston can be prevented owing to the locking bolt; the engineering hydraulic cylinder with the concave support can be in excellent contact with a foundation and is economical, safe and practical, and an excellent support effect can be realized.
Description
Technical field
The utility model relates to hydraulic equipment technical field, more specifically says the oil hydraulic cylinder that a kind of engineering is particularly used in down-hole engineering support process.
Background technique
Engineering is down-hole engineering particularly, along with the progress of engineering, need to carry out supporting to the borehole wall at any time, to facilitate postorder construction, it is strut and oilhydraulic engineering oil cylinder that support apparatus adopted more, the oilhydraulic engineering cylinder structure design of prior art is unreasonable, in Bracing Process, usually there is loosening phenomenon, the one, the leakage of oil of oil hydraulic cylinder own causes, and the one, oil hydraulic cylinder and basic bad connection cause, once there is the generation that loosening phenomenon will be brought security incident, cause larger economic loss.
Summary of the invention
For addressing the above problem, the utility model has designed a kind of reasonable in design, be difficult for occurring loosening phenomenon, contact with basis well, economical and practical engineering oil hydraulic cylinder, the technical solution of the utility model is: described engineering oil hydraulic cylinder is by earrings, protecgulum, guiding fixed cover, piston rod, piston, hydraulic oil port, oil drain valve, bonnet, lock(ing) bolt, locking pressing plate, seal ring, hydraulic cylinder, concave surface bearing composition, the front end that it is characterized in that hydraulic cylinder arranges protecgulum, the rear end of hydraulic cylinder arranges bonnet, in the axial location of hydraulic cylinder, be provided with piston rod, the inside of the medial extremity hydraulic cylinder of piston rod arranges piston, the outside of the outboard end protecgulum of piston rod is connected with earrings, on the side arm of the inner side hydraulic cylinder of bonnet, be provided with hydraulic oil port, the inner side of hydraulic oil port arranges oil drain valve, the inside of the inner side hydraulic cylinder of protecgulum is provided with guiding fixed cover, the arranged outside of bonnet has concave surface bearing.
Guiding fixed cover described in the utility model, it is characterized in that leading fixed cover and hydraulic cylinder are welded and fixed, and a side of guiding fixed cover arranges lock(ing) bolt, and the medial extremity of lock(ing) bolt is provided with locking pressing plate, to piston rod locking, prevents piston work relax.
Locking pressing plate described in the utility model, is characterized in that locking on the surface of contact of pressing plate and piston rod and is provided with anti-slip veins.
Piston described in the utility model, is characterized in that being provided with seal ring between piston and the internal surface of hydraulic cylinder.
Concave surface bearing described in the utility model, is characterized in that concave surface bearing and basic surface of contact are set to inner concave, and inner concave can effectively increase basic stress support, prevents from occurring between surface of contact loosening.
The beneficial effects of the utility model are that engineering oil hydraulic cylinder arranges reasonable in design, are provided with lock(ing) bolt, and piston is difficult for occurring loosening phenomenon, is provided with concave surface bearing, contacts well with basis, and supporting effect is good, economic security practicality.
brief description of the drawings:
Accompanying drawing 1 is structural representation of the present utility model, in accompanying drawing 1:
1. earrings, 2. protecgulum, 3. guiding fixed cover, 4. piston rod, 5. piston, 6. hydraulic oil port, 7. oil drain valve, 8. bonnet, 9. lock(ing) bolt, 10. locking pressing plate, 11. seal rings, 12. hydraulic cylinders, 13. concave surface bearings.
embodiment:
1 pair of the utility model describes in further detail by reference to the accompanying drawings, so that the public grasps implementation methods of the present utility model better, the utility model specific embodiment is: described engineering oil hydraulic cylinder is by earrings 1, protecgulum 2, guiding fixed cover 3, piston rod 4, piston 5, hydraulic oil port 6, oil drain valve 7, bonnet 8, lock(ing) bolt 9, locking pressing plate 10, seal ring 11, hydraulic cylinder 12, concave surface bearing 13 forms, the front end that it is characterized in that hydraulic cylinder 12 arranges protecgulum 2, the rear end of hydraulic cylinder 12 arranges bonnet 8, in the axial location of hydraulic cylinder 12, be provided with piston rod 4, the inside of the medial extremity hydraulic cylinder 12 of piston rod 4 arranges piston 5, the outside of the outboard end protecgulum 2 of piston rod 4 is connected with earrings 1, on the side arm of the inner side hydraulic cylinder 12 of bonnet 8, be provided with hydraulic oil port 6, the inner side of hydraulic oil port 6 arranges oil drain valve 7, the inside of the inner side hydraulic cylinder 12 of protecgulum 2 is provided with guiding fixed cover 3, the arranged outside of bonnet 8 has concave surface bearing 13.
Guiding fixed cover 3 described in the utility model, the fixed cover 3 that it is characterized in that leading is welded and fixed with hydraulic cylinder 12, and a side of guiding fixed cover 3 arranges lock(ing) bolt 9, and the medial extremity of lock(ing) bolt 9 is provided with locking pressing plate 10, piston rod 4 is locked, prevent that piston 5 is loosening.
Locking pressing plate 10 described in the utility model, is characterized in that locking on the surface of contact of pressing plate 10 and piston rod 4 and is provided with anti-slip veins.
Piston 5 described in the utility model, is characterized in that being provided with seal ring 11 between piston 5 and the internal surface of hydraulic cylinder 12.
Concave surface bearing 13 described in the utility model, is characterized in that concave surface bearing 13 and basic surface of contact are set to inner concave, and inner concave can effectively increase basic stress support, prevents from occurring between surface of contact loosening.
The beneficial effects of the utility model are that engineering oil hydraulic cylinder arranges reasonable in design, are provided with lock(ing) bolt 9, and piston 5 is difficult for occurring loosening phenomenon, is provided with concave surface bearing 13, contacts well with basis, and supporting effect is good, economic security practicality.
Claims (5)
1. engineering oil hydraulic cylinder, by earrings (1), protecgulum (2), guiding fixed cover (3), piston rod (4), piston (5), hydraulic oil port (6), oil drain valve (7), bonnet (8), lock(ing) bolt (9), locking pressing plate (10), seal ring (11), hydraulic cylinder (12), concave surface bearing (13) composition, the front end that it is characterized in that hydraulic cylinder (12) arranges protecgulum (2), the rear end of hydraulic cylinder (12) arranges bonnet (8), in the axial location of hydraulic cylinder (12), be provided with piston rod (4), the inside of the medial extremity hydraulic cylinder (12) of piston rod (4) arranges piston (5), the outside of the outboard end protecgulum (2) of piston rod (4) is connected with earrings (1), on the side arm of the inner side hydraulic cylinder (12) of bonnet (8), be provided with hydraulic oil port (6), the inner side of hydraulic oil port (6) arranges oil drain valve (7), the inside of the inner side hydraulic cylinder (12) of protecgulum (2) is provided with guiding fixed cover (3), and the arranged outside of bonnet (8) has concave surface bearing (13).
2. engineering oil hydraulic cylinder according to claim 1, the fixed cover (3) that it is characterized in that leading is welded and fixed with hydraulic cylinder (12), one side of guiding fixed cover (3) arranges lock(ing) bolt (9), and the medial extremity of lock(ing) bolt (9) is provided with locking pressing plate (10).
3. engineering oil hydraulic cylinder according to claim 1 and 2, is characterized in that locking on the surface of contact of pressing plate (10) and piston rod (4) and is provided with anti-slip veins.
4. engineering oil hydraulic cylinder according to claim 1, is characterized in that being provided with seal ring (11) between piston (5) and the internal surface of hydraulic cylinder (12).
5. engineering oil hydraulic cylinder according to claim 1, is characterized in that concave surface bearing (13) and basic surface of contact are set to inner concave.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420078705.0U CN203730450U (en) | 2014-02-23 | 2014-02-23 | Engineering hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420078705.0U CN203730450U (en) | 2014-02-23 | 2014-02-23 | Engineering hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203730450U true CN203730450U (en) | 2014-07-23 |
Family
ID=51200528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420078705.0U Expired - Fee Related CN203730450U (en) | 2014-02-23 | 2014-02-23 | Engineering hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203730450U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108661975A (en) * | 2018-06-29 | 2018-10-16 | 苏州力森克液压设备有限公司 | A kind of static state spacing-type engineering hydraulic cylinder |
-
2014
- 2014-02-23 CN CN201420078705.0U patent/CN203730450U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108661975A (en) * | 2018-06-29 | 2018-10-16 | 苏州力森克液压设备有限公司 | A kind of static state spacing-type engineering hydraulic cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140723 Termination date: 20190223 |