CN2227545Y - Hydraulic expanding apparatus - Google Patents
Hydraulic expanding apparatus Download PDFInfo
- Publication number
- CN2227545Y CN2227545Y CN95207868U CN95207868U CN2227545Y CN 2227545 Y CN2227545 Y CN 2227545Y CN 95207868 U CN95207868 U CN 95207868U CN 95207868 U CN95207868 U CN 95207868U CN 2227545 Y CN2227545 Y CN 2227545Y
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- China
- Prior art keywords
- operating cylinder
- joint
- piston
- hand
- knock
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a hydraulic spreader. The expanding butts are connected and fixed with the expanding arm end through pin axles and fixed slot. The tail of expanding arm is hinged respectively with a connecting rod and a knock-off joint through the pin axles. The other end of the connecting rod is hinged with the end of working oil cylinder through the pin axles. The other end of the knock-off joint is connected with the end of piston rods through screw threads. Component parts of a manual valve is connected with a working oil cylinder. The utility model has the advantages of simple structure, long service life, light weight, strong extending force, and high speed of expanding.
Description
The utility model belongs to hydraulic spreader and makes the field, is mainly used in the rescue operation in fields such as modern fire-fighting, traffic and civilian and military aviation, underwater salvage.
Prior art of the present utility model is: present expander, and complex structure is made difficulty, and weight is big in addition, and operation inconvenience is difficult to satisfy the needs in rescues such as fire-fighting, traffic, aviation, underwater salvage.
Purpose of design of the present utility model is: avoid the deficiencies in the prior art part, design a kind of with hydraulic oil be power source and simple in structure, processing and manufacturing is easy, easy to operate, in light weight, hydraulic spreader that expansionary force is big.
Design technology project of the present utility model is: the design of hydraulic spreader, expansionary force 40KN, expansion distance 610mm, weight≤24kg, reach the purpose of weight reduction in order to ensure the realization of above-mentioned parameter, all load bearing elements are adopted optimal design, oil cylinder, expansion arm and cylinder cap adopt the high-strength aluminum alloy forging, and expansion head, piston, knock-off joint and bearing pin adopt the super-strength alloy steel forging through special Technology for Heating Processing, and the strength of materials is increased exponentially.Structural design: the afterbody and expansion arm (7) end of hydraulic spreader expansion head (8) are connected and fixed by bearing pin and holddown groove, expansion arm (7) afterbody is hinged with connecting rod (6) and knock-off joint (5) respectively by bearing pin, the other end of connecting rod (6) is hinged by bearing pin and operating cylinder (2) end, operating cylinder (2) end is equipped with cylinder cap (4), knock-off joint (5) other end is gone up fixing piston rod end by screw thread and the piston that is arranged in operating cylinder (2) (3) and is connected, and hand control valve parts (1) are connected with operating cylinder (2).
Hand control valve parts (1) are made up of pipe joint (9), plug (10), spring (11), spool (12), valve pocket (13), valve body (14), screw (15), bidirectional hydraulic lock (16), case (17) holding screw (18), steel ball (19), spring base (20), (21), fairlead (22), guide post (23), guide pad (24), control piston (25); Pipe joint (9), plug (10), spring (11), spool (12), valve pocket (13), valve body (14), spring base (20), (21), fairlead (22), guide post (23), guide pad (24) is formed hand-operated direction valve; Bidirectional hydraulic lock (16): case (17), holding screw (18), steel ball (19), control piston (25) are formed bidirectional hydraulic lock; Hand-operated direction valve connects by screw (15) with bidirectional hydraulic lock and forms hand control valve parts (1), and the other end of hand control valve parts (1) and operating cylinder (2) connect to form a closed control loop.
Operation principle: the hydraulic oil of exporting from oil pump enters manual reversal valve by oil pipe, at the enterprising people's oil cylinder of reversal valve open position, promotes the piston motion, and piston drives piston rod movement, by the realization expansion of knock-off joint promotion expansion arm and the pull function of its head.When oil cylinder working-pressure reached maximum working pressure, the expansionary force (or pull power) that the expansion head acts on the object also reached specified tonnage.
The utility model is compared with prior art: the one, and simple in structure, easy to operate, processing and manufacturing is easy; The 2nd, expansion arm, oil cylinder adopt the high-strength aluminum alloy forging, and complete machine weight greatly alleviates; The 3rd, adopting hydraulic pressure is that power source has the advantage that pressure is big, rate of expansion is fast; The 4th, expansion head and piston adopt the high-strength alloy steel forgings through special thermal treatment, have long service life, lightweight advantage; The 5th, the design of control reversal valve has the function of feeding, pressurize, commutation, backhaul, and when having realized not pressurize of the pump housing, expander is the function of pressurize automatically; The 6th, expansionary force is strong.
Fig. 1 is the structural representation of hydraulic spreader.
Fig. 2 is the structural representation of hand control valve parts.
In conjunction with Fig. 1 and 2 the utility model is further described.
The primary structure of expander is made up of eight parts as shown in Figure 1, after the rectangular boss of the afterbody of expansion head (8) and the assembling of the fluting of expansion arm (7) end, with the garden pin with the two fixation, expansion arm (7) afterbody is hinged with connecting rod (6) and knock-off joint (5) respectively by bearing pin, form plane hinge mechanism, connecting rod (6) other end is hinged by bearing pin and operating cylinder (2) end, operating cylinder (2) end is equipped with cylinder cap (4), piston (3) in the operating cylinder (2) is gone up fixing piston rod end and is connected with knock-off joint (5) by screw thread, under the hydraulic pressure effect, piston promotes expansion arm by knock-off joint and realizes expansion and pull.Hand control valve parts (1) are the hydraulic control part of expander, expander and manual pump are by high-pressure rubber pipe and connect fast to link and be connected together, form a complete closed circuit working system, manual pump (or electrodynamic pump) is for system provides power, and supporting realization of manual pump and expander expanded and the pull function.
The hand control valve parts mainly by: pipe joint (9), plug (10), spring (11), spool (12), valve pocket (13), valve body (14), screw (15), bidirectional hydraulic lock (16), case (17), holding screw (18), steel ball (19), spring base (20), (21), fairlead (22), guide post (23), guide pad (24), control piston (25) etc. are formed.
Wherein pipe joint (9), plug (10), spring (11), spool (12), valve pocket (13), valve body (14), spring base (20), (21), fairlead (22), guide post (23) guide pad (24) are formed hand-operated direction valve; Bidirectional hydraulic lock (16), case (17), holding screw (18), steel ball (19), control piston (25) are formed bidirectional hydraulic lock, hand-operated direction valve connects by screw (15) with bidirectional hydraulic lock and forms hand control valve parts (1), the other end of hand control valve parts (1) is connected with operating cylinder (2), forms a closed control system.
The bidirectional hydraulic of parts is locked in and plays a part to increase reliability in the expander, has installed additional in-oil cylinder piston is gone up at an arbitrary position behind the bidirectional hydraulic lock to lock, have only artificial control, just can reopen hydraulic lock.This function is even more important in the use of expander.This device has been arranged, when expander supporting weight, hydraulic hose had been cut off unexpectedly, expander just rests on the original position and can not fall.
Claims (2)
1, a kind of hydraulic spreader, it is characterized in that: the afterbody and expansion arm (7) end of expansion head (8) are connected and fixed by bearing pin and holddown groove, expansion arm (7) afterbody is hinged with connecting rod (6) and knock-off joint (5) respectively by bearing pin, connecting rod (6) other end is hinged by bearing pin and operating cylinder (2) end, operating cylinder (2) end is equipped with cylinder cap (4), knock-off joint (5) other end is gone up fixing piston rod end by screw thread and the piston that is arranged in operating cylinder (2) (3) and is connected, and hand control valve parts (1) are connected with operating cylinder (2).
2, hydraulic spreader according to claim 1 is characterized in that: hand control valve parts (1) are made up of pipe joint (9), plug (10), spring (11), spool (12), valve pocket (13), valve body (14), screw (15), bidirectional hydraulic lock (16), case (17), holding screw (18), steel ball (19), spring base (20), (21), fairlead (22), guide post (23), guide pad (24), control piston (25); Pipe joint (9), plug (10), spring (11), spool (12), valve pocket (13), valve body (14), spring base (20), (21), fairlead (22), guide post (23), guide pad (24) are formed hand-operated direction valve; Bidirectional hydraulic lock (16), case (17), holding screw (18), steel ball (19), control piston (25) are formed bidirectional hydraulic lock; Hand-operated direction valve connects by screw (15) with bidirectional hydraulic lock and forms hand control valve parts (1), and hand control valve parts (1) other end and operating cylinder (2) connect to form a closed control loop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95207868U CN2227545Y (en) | 1995-04-06 | 1995-04-06 | Hydraulic expanding apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95207868U CN2227545Y (en) | 1995-04-06 | 1995-04-06 | Hydraulic expanding apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2227545Y true CN2227545Y (en) | 1996-05-22 |
Family
ID=33859365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN95207868U Expired - Fee Related CN2227545Y (en) | 1995-04-06 | 1995-04-06 | Hydraulic expanding apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2227545Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101927067A (en) * | 2010-08-28 | 2010-12-29 | 湖南科技大学 | Heavy-load large-distance coniform spiral-expanding rescuing equipment |
| CN101670885B (en) * | 2009-09-27 | 2011-08-24 | 华中科技大学 | Hydraulic pressure expander |
| CN102275154A (en) * | 2010-06-11 | 2011-12-14 | 成都理工大学 | Novel hydraulic spreader-shearer |
| CN102462901A (en) * | 2010-11-19 | 2012-05-23 | 成都理工大学 | Hydraulic expander with high primary stress |
| CN103723652A (en) * | 2012-10-15 | 2014-04-16 | 崔晶光 | Multifunctional hydraulic expansion type rescue device |
| CN106581879A (en) * | 2017-02-13 | 2017-04-26 | 杭州众铎消防科技有限公司 | Electric hydraulic device |
| CN109876325A (en) * | 2019-02-22 | 2019-06-14 | 浙江盈瑞数字科技有限公司 | Change type hydraulic dilatation device is stretched on a kind of top |
| CN110725563A (en) * | 2019-10-20 | 2020-01-24 | 天津瀚洋达海洋工程有限公司 | Gas type underwater forcible entry device |
-
1995
- 1995-04-06 CN CN95207868U patent/CN2227545Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101670885B (en) * | 2009-09-27 | 2011-08-24 | 华中科技大学 | Hydraulic pressure expander |
| CN102275154A (en) * | 2010-06-11 | 2011-12-14 | 成都理工大学 | Novel hydraulic spreader-shearer |
| CN101927067A (en) * | 2010-08-28 | 2010-12-29 | 湖南科技大学 | Heavy-load large-distance coniform spiral-expanding rescuing equipment |
| CN101927067B (en) * | 2010-08-28 | 2012-09-19 | 湖南科技大学 | Heavy-load large-distance coniform spiral-expanding rescuing equipment |
| CN102462901A (en) * | 2010-11-19 | 2012-05-23 | 成都理工大学 | Hydraulic expander with high primary stress |
| CN102462901B (en) * | 2010-11-19 | 2014-09-17 | 成都理工大学 | Hydraulic expander with high primary stress |
| CN103723652A (en) * | 2012-10-15 | 2014-04-16 | 崔晶光 | Multifunctional hydraulic expansion type rescue device |
| CN106581879A (en) * | 2017-02-13 | 2017-04-26 | 杭州众铎消防科技有限公司 | Electric hydraulic device |
| CN109876325A (en) * | 2019-02-22 | 2019-06-14 | 浙江盈瑞数字科技有限公司 | Change type hydraulic dilatation device is stretched on a kind of top |
| CN110725563A (en) * | 2019-10-20 | 2020-01-24 | 天津瀚洋达海洋工程有限公司 | Gas type underwater forcible entry device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |