CN2752509Y - Tow boat hydraulic protector - Google Patents
Tow boat hydraulic protector Download PDFInfo
- Publication number
- CN2752509Y CN2752509Y CN 200520008170 CN200520008170U CN2752509Y CN 2752509 Y CN2752509 Y CN 2752509Y CN 200520008170 CN200520008170 CN 200520008170 CN 200520008170 U CN200520008170 U CN 200520008170U CN 2752509 Y CN2752509 Y CN 2752509Y
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- hydraulic motor
- valve
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- hydraulic
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Abstract
The utility model relates to a hydraulic protector for a harbor tug boat. Oil openings of the utility model, which are connected with an inlet end and an outlet end of a hydraulic motor, are respectively connected with a one-way valve in series; the inlet end and the outlet end of the hydraulic motor are respectively connected with a safety valve and a by-pass valve in parallel. The utility model is characterized in that the one-way valves are respectively connected with a balanced valve in parallel to form two groups of bidirectional balance overflow valves; the inlet end and the outlet end of the hydraulic motor are connected in parallel with two one-way valves which are connected in series, and serial connection points of the two one-way valves are provided with oil compensation pipes. The hydraulic motor can be made to be stable at the beginning of start by using the balance valves, and the hydraulic motor is prevented from the impact; when pressure is higher, the opening degree of the balance valves can correspondingly increased and an oil return pipe can be remained to be smooth. In addition, short-time oil compensation can be provided by using the oil compensation pipes, and the husking phenomenon caused by the empty suction of the hydraulic motor can be avoided. The hydraulic protector for a harbor tug boat, which is provided by the utility model, is suitable for a warping winch and a steering engine to arrange in a hydraulic system.
Description
Technical field
The utility model relates to a kind of craft tug hydraulic protector, especially a kind of tugboat hydraulic protector that is used for warping winch and steering wheel.
Background technique
At present, modernized harbour all disposes a large amount of high-power tugboats, is modern van container freighter service, and the hydraulic system of tugboat mainly is made up of warping winch and steering gear hydraulic system.
Tugboat is in the towing operation process, and warping winch often needs take-up continually, cable laying, is bearing very important job task.At work because the situation is critical, the capstan winch brake strap of warping winch in time do not stop tight or brake weight not enough, the capstan winch brake strap is not stopped when tight, just begins traction, causes capstan winch to rotate, the moment that reacts on oil hydraulic motor like this is excessive, oil hydraulic motor is forced to rotate, and this moment, control valve was in closed condition, and oil hydraulic motor is equivalent to oil hydraulic pump, suction inlet do not have fuel feeding, outlet can't the situation of draining under, will cause the oil hydraulic motor explosion.
In addition, warping winch is in the operation process of retractable cable, and boats and ships are subjected to very big external force effect suddenly, as surge, the increase suddenly of towing tension load etc., the moment of torsion that will cause reacting on oil hydraulic motor also increases suddenly, and hydraulic system can't be carried out effective overflow, causes oil hydraulic motor to damage or explosion.The hydraulic sterring engine of same tugboat also can run into similar problem and cause hydraulic oil pipe explosion or oil hydraulic motor to damage.
Summary of the invention
For overcoming the prior art shortcoming, the utility model provides a kind of instantaneous pressure that can produce oil hydraulic motor timely and effectively to carry out overflow, thereby can protect a kind of tugboat hydraulic protector of oil hydraulic motor and the unlikely damage of oil pipe.
The technological scheme that its technical problem that solves the utility model adopts is: a kind of tugboat hydraulic protector; comprise the hydraulic fluid port that is connected with the oil hydraulic motor in-out end one-way valve of connecting respectively; this oil hydraulic motor in-out end is safety valve in parallel, bypass valve respectively; be characterized in that this one-way valve is in parallel with equilibrium valve respectively and constitutes two groups of bidirectional balanced relief valves.
The parallel connection of oil hydraulic motor in-out end is equipped with the one-way valve of two series connection, and these two one-way valve serial connection points are equipped with the repairing pipe.
The beneficial effects of the utility model are: owing to adopt equilibrium valve to avoid oil hydraulic motor to be impacted so that oil hydraulic motor is more steady when just starting, the aperture of equilibrium valve can correspondingly increase when pressure is higher, keeps return line unimpeded.In addition, adopt the repairing pipeline that of short duration repairing can be provided, avoid the oil hydraulic motor suction and the shelling phenomenon that produces.When system pressure moment increased, safety valve cooperates made the pressure instantaneous relase, avoids oil hydraulic motor to bear bigger impact, the protection oil hydraulic motor.At present the safety valve latus rectum on the Domestic market is less, discharges not prompt enoughly when system pressure increases, and the utility model is further improved the safety valve latus rectum in the protective gear, adjusts as required, and the latus rectum of Generally Recognized as safe valve is φ 40mm.The craft tug hydraulic system protective gear of the utility model exploitation can address the above problem effectively, prevents the generation of above-mentioned fault, is useful in equally this protective gear is installed in the steering gear hydraulic system.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is a fundamental diagram of the present utility model.
Fig. 2 is a structural representation of the present utility model.
Fig. 3 is the side view of Fig. 2.
Fig. 4 is the outline drawing of Fig. 2.
Fig. 5 is the outline drawing of Fig. 3.
Embodiment
Tugboat hydraulic protector of the present utility model is by four one-way valve 1a, 1b, 1c, 1d, two equilibrium valve 2a, 2b, two bypass valve 3a, 3b, two safety valve 5a, 5b, and a repairing pipe 4 is formed.This device generally is installed in oil inlet and outlet L, the R place of oil hydraulic motor 6.
Shown in Figure 1: a kind of tugboat hydraulic protector; comprise the hydraulic fluid port A ', the B ' that are connected with oil hydraulic motor in-out end L, R connect respectively one-way valve 1a, 1b; this oil hydraulic motor in-out end is safety valve 5a in parallel, 5b, bypass valve 3a, 3b respectively; be characterized in that one-way valve 1a, 1b are in parallel with equilibrium valve 2a, 2b respectively and constitute two groups of bidirectional balanced relief valves 7.
Oil hydraulic motor in-out end L, R parallel connection are equipped with one-way valve 1c, the 1d of two series connection, and these two one-way valve serial connection points are equipped with repairing pipe 4.
The latus rectum of safety valve 5a, 5b is φ 40mm.The valve core housing of equilibrium valve 2a, 2b is equipped with spring, is used to control the aperture of equilibrium valve 2a, 2b.
Referring to Fig. 2-shown in Figure 5:
Working principle of the present utility model is: after this device is installed in the warping winch hydraulic system of tugboat, oil inlet and outlet A ', B ' directly are connected with oil inlet and outlet L, the R of oil hydraulic motor, warping winch is when the take-up situation, pressure oil enters from hydraulic fluid port A, through bidirectional balanced relief valve 7, flow to oil hydraulic motor L hydraulic fluid port by hydraulic fluid port A ', oil hydraulic motor just changes.When warping winch during in the cable laying situation, pressure oil enters from hydraulic fluid port B, through bidirectional balanced relief valve 7, flows to oil hydraulic motor R hydraulic fluid port by hydraulic fluid port B ', the oil hydraulic motor counter-rotating.
1. take-up situation
When the warping winch take-up, come the pressure oil of self-commutation series flow control valve, enter bidirectional balanced relief valve 7 from hydraulic fluid port A mouth, back down one-way valve 1a, from hydraulic fluid port A ' outflow, enter hydraulic pressure motor oil L, drive oil hydraulic motor 6, carry out the take-up action; Hydraulic fluid port B ' has the oil return of pressure that one-way valve 1b is closed, and hydraulic fluid port A pressure oil flows into the cavity of equilibrium valve 2a, and this pressure oil acts on the spool of equilibrium valve 2b, and against the force of the spring moves spool, and then hydraulic fluid port B ' links up with the B oil circuit.
When oil hydraulic motor started, hydraulic fluid port A pressure was lower, and equilibrium valve 2b aperture is less, and hydraulic fluid port B oil back chamber produces throttling, and it is mild that oil hydraulic motor is started, and impacts less.
If surge is arranged, or the increase suddenly of towing tension load, then hydraulic fluid port A cavity pressure also increases thereupon, adopts the aperture of equilibrium valve 2b to increase, and makes the back pressure of oil hydraulic motor 6 reduce, and oil hydraulic motor is protected; If surge or towing tension load is big especially, the pressure of hydraulic fluid port A sharply raises, and then safety valve 5a opens, pressure oil from hydraulic fluid port A chamber overflow to hydraulic fluid port B chamber, thereby the protection oil hydraulic motor.
2. cable laying situation
When the warping winch cable laying, come the pressure oil of self-commutation series flow control valve, enter bidirectional balanced relief valve 7 from hydraulic fluid port B, back down one-way valve 1b, from hydraulic fluid port B ' outflow, enter hydraulic pressure motor oil R, drive oil hydraulic motor, carry out the cable laying action; Hydraulic fluid port A ' has the oil return of pressure that one-way valve 1a is closed, and hydraulic fluid port B pressure oil flows into the cavity of equilibrium valve 2b, and this pressure oil acts on balance valve core 2a, and against the force of the spring moves spool, and then hydraulic fluid port A ' links up with the A oil circuit.Because the throttling of oil back chamber, oil hydraulic motor starts mild, impacts less.
When cable laying; the capstan winch brake strap of warping winch is not in time stopped tightly; or brake weight is not enough; under the capstan winch brake strap is not being stopped tight situation; just begin traction, cause capstan winch to rotate, the moment that reacts on oil hydraulic motor is excessive; oil hydraulic motor is forced to rotate; and this moment one-way valve 1c; 1d is in closed condition, and oil hydraulic motor is equivalent to oil hydraulic pump, and the R mouth of oil hydraulic motor sucks by repairing pipe 4 and mends the fluid of going into; the L mouth pressure oil that goes out oil hydraulic motor is by hydraulic fluid port A '; back down safety valve 5a, enter hydraulic fluid port B ', communicate with oil hydraulic motor R mouth; constitute inner loop, play the effect of protection oil hydraulic motor and oil pipe.The craft tug hydraulic protector of the utility model exploitation is useful in equally this protective gear is installed in the steering gear hydraulic system.
Claims (4)
1. tugboat hydraulic protector; comprise the hydraulic fluid port that is connected with oil hydraulic motor in-out end (L, R) (A ', the B ') one-way valve of connecting respectively (1a, 1b); this oil hydraulic motor in-out end is safety valve in parallel (5a, 5b), bypass valve (3a, 3b) respectively; it is characterized in that described one-way valve (1a, 1b) is in parallel with equilibrium valve (2a, 2b) respectively and constitutes two groups of bidirectional balanced relief valves (7).
2. tugboat hydraulic protector according to claim 1 is characterized in that, described oil hydraulic motor in-out end (L, R) parallel connection is equipped with the one-way valve (1c, 1d) of two series connection, and these two one-way valve serial connection points are equipped with repairing pipe (4).
3. tugboat hydraulic protector according to claim 1 and 2 is characterized in that, the latus rectum of described safety valve (5a, 5b) is 40mm.
4. tugboat hydraulic protector according to claim 1 is characterized in that, the valve core housing of described equilibrium valve (2a, 2b) is equipped with spring, is used to control the aperture of equilibrium valve (2a, 2b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520008170 CN2752509Y (en) | 2004-10-29 | 2005-03-05 | Tow boat hydraulic protector |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200420107898 | 2004-10-29 | ||
| CN200420107898.4 | 2004-10-29 | ||
| CN 200520008170 CN2752509Y (en) | 2004-10-29 | 2005-03-05 | Tow boat hydraulic protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2752509Y true CN2752509Y (en) | 2006-01-18 |
Family
ID=35913918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520008170 Expired - Fee Related CN2752509Y (en) | 2004-10-29 | 2005-03-05 | Tow boat hydraulic protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2752509Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103392680A (en) * | 2013-08-08 | 2013-11-20 | 宁波捷胜海洋开发有限公司 | Hydraulic system of tuna fishing machine |
| CN105134685A (en) * | 2015-09-16 | 2015-12-09 | 凯盛重工有限公司 | Hydraulic circuit system for protecting oil cylinders |
-
2005
- 2005-03-05 CN CN 200520008170 patent/CN2752509Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103392680A (en) * | 2013-08-08 | 2013-11-20 | 宁波捷胜海洋开发有限公司 | Hydraulic system of tuna fishing machine |
| CN103392680B (en) * | 2013-08-08 | 2015-07-08 | 捷胜海洋装备股份有限公司 | Hydraulic system of tuna fishing machine |
| CN105134685A (en) * | 2015-09-16 | 2015-12-09 | 凯盛重工有限公司 | Hydraulic circuit system for protecting oil cylinders |
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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 |