Hydraulic system of full-rotation rudder propeller device and control method thereof
阅读说明:本技术 全回转舵桨装置的液压系统及其控制方法 (Hydraulic system of full-rotation rudder propeller device and control method thereof ) 是由 翁晶 吴金星 张益鹏 于 2019-07-31 设计创作,主要内容包括:本发明公开了一种全回转舵桨装置的液压系统及其控制方法,属于液压控制技术领域。所述液压系统包括:第一变量泵模块、第二变量泵模块、故障隔离模块、第一马达、第二马达和油箱。通过在液压系统中设置故障隔离模块,可以将液压系统划分成两个独立的系统,当第一变量泵模块与第一马达之间的油路中产生故障或第二变量泵模块与第二马达之间的油路中产生故障时,可以通过该故障隔离模块将故障油路隔离,使得故障侧马达处于自由轮工况,随着回转支撑自由的滑转,未故障侧马达可以继续由变量泵模块驱动转动,从而带动回转支撑的内齿圈转动,实现全回转舵桨装置回转。(The invention discloses a hydraulic system of a full-rotation rudder propeller device and a control method thereof, belonging to the technical field of hydraulic control. The hydraulic system includes: the system comprises a first variable pump module, a second variable pump module, a fault isolation module, a first motor, a second motor and an oil tank. The fault isolation module is arranged in the hydraulic system, the hydraulic system can be divided into two independent systems, when a fault occurs in an oil path between the first variable pump module and the first motor or an oil path between the second variable pump module and the second motor, the fault oil path can be isolated through the fault isolation module, so that the fault side motor is in a free wheel working condition, and the motor on the non-fault side can continue to be driven to rotate by the variable pump module along with the free slip of the rotary support, so that the inner gear ring of the rotary support is driven to rotate, and the rotation of the full-rotary rudder propeller device is realized.)
1. A hydraulic system of a full-turn rudder propeller device is characterized by comprising a first variable pump module (1), a second variable pump module (2), a fault isolation module (3), a first motor (M1), a second motor (M2) and an oil tank (4);
the first variable pump module (1) and the second variable pump module (2) are respectively provided with a first oil port (A), a second oil port (B) and an oil inlet (G), and the fault isolation module (3) is provided with a first oil port (A1), a second oil port (B1), a third oil port (A2), a fourth oil port (B2), a fifth oil port (C1), a sixth oil port (C2), a seventh oil port (D1), an eighth oil port (D2) and an oil drainage port (T);
a first oil port (A) of the first variable pump module (1) is communicated with a first oil port (A1) of the fault isolation module (3), and a second oil port (B) of the first variable pump module (1) is communicated with a second oil port (B1) of the fault isolation module (3); a first oil port (A) of the second variable pump module (2) is communicated with a third oil port (A2) of the fault isolation module (3), and a second oil port (B) of the second variable pump module (2) is communicated with a fourth oil port (B2) of the fault isolation module (3); a fifth oil port (C1) of the fault isolation module (3) is communicated with a first oil port (A) of a first motor (M1), and a seventh oil port (D1) of the fault isolation module (3) is communicated with a second oil port (B) of the first motor (M1); a sixth oil port (C2) of the fault isolation module (3) is communicated with a first oil port (A) of a second motor (M2), and an eighth oil port (D2) of the fault isolation module (3) is communicated with a second oil port (B) of the second motor (M2);
an oil inlet (G) of the first variable pump module (1), an oil inlet (G) of the second variable pump module (2), an oil drainage port (T) of the fault isolation module (3), an oil drainage port (T) of the first motor (M1) and an oil drainage port (T) of the second motor (M2) are communicated with the oil tank (4);
the fault isolation module (3) comprises a first sequence valve (31), a second sequence valve (32), a first two-position four-way valve (33), a second two-position four-way valve (34) and a fault isolation valve (35);
a first oil port (A) of the first sequence valve (31) is communicated with a first oil port (A1) of the fault isolation module (3), a second oil port (B) of the first sequence valve (31) is communicated with a second oil port (B1) of the fault isolation module (3), a third oil port (C) of the first sequence valve (31) is communicated with a third oil port (C) of the first two-position four-way valve (33), and a fourth oil port (D) of the first sequence valve (31) is communicated with a fourth oil port (D) of the first two-position four-way valve (33);
a first oil port (A) of the second sequence valve (32) is communicated with a third oil port (A2) of the fault isolation module (3), a second oil port (B) of the second sequence valve (32) is communicated with a fourth oil port (B2) of the fault isolation module (3), a third oil port (C) of the second sequence valve (32) is communicated with a third oil port (C) of the second two-position four-way valve (34), and a fourth oil port (D) of the second sequence valve (32) is communicated with a fourth oil port (D) of the second two-position four-way valve (34);
a first oil port (A) and a second oil port (B) of the first two-position four-way valve (33), a first oil port (A) and a second oil port (B) of the second two-position four-way valve (34) are communicated with an oil drainage port (T) of the fault isolation module (3), a third oil port (C) of the first two-position four-way valve (33) is communicated with a fifth oil port (C1) of the fault isolation module (3), a fourth oil port (D) of the first two-position four-way valve (33) is communicated with a seventh oil port (D1) of the fault isolation module (3), a third oil port (C) of the second two-position four-way valve (34) is communicated with a sixth oil port (C2) of the fault isolation module (3), and a fourth oil port (D) of the second two-position four-way valve (34) is communicated with an eighth oil port (D2) of the fault isolation module (3);
the first oil port (A) of the fault isolation valve (35) is respectively communicated with the third oil port (C) of the first sequence valve (31) and the third oil port (C) of the first two-position four-way valve (33), the second oil port (B) of the fault isolation valve (35) is respectively communicated with the fourth oil port (D) of the first sequence valve (31) and the fourth oil port (D) of the first two-position four-way valve (33), the third oil port (C) of the fault isolation valve (35) is respectively communicated with the third oil port (C) of the second sequence valve (32) and the third oil port (C) of the second two-position four-way valve (34), and the fourth oil port (D) of the fault isolation valve (35) is respectively communicated with the fourth oil port (D) of the second sequence valve (32) and the fourth oil port (D) of the second two-position four-way valve (34).
2. The hydraulic system according to claim 1, characterized in that the first variable pump module (1) comprises a first servo control (11), a first variable pump (12) and a first pressure switch (13);
a first auxiliary pump (121) is integrated inside the first variable pump (12), an oil outlet (A) of the first variable pump (12) is communicated with a first oil port (A) of the first variable pump module (1), and an oil outlet (B) of the first variable pump (12) is communicated with a second oil port (B) of the first variable pump module (1);
an oil inlet (D) of the first auxiliary pump (121) is communicated with an oil inlet (G) of the first variable pump module (1);
an oil inlet of the first pressure switch (13) is communicated with an oil outlet (C) of the first auxiliary pump (121).
3. The hydraulic system according to claim 2, characterized in that the second variable pump module (2) comprises a second servo control (21), a second variable pump (22) and a second pressure switch (23);
a second auxiliary pump (221) is integrated inside the second variable pump (22), an oil outlet (A) of the second variable pump (22) is communicated with a first oil port (A) of the second variable pump module (2), and an oil outlet (B) of the second variable pump (22) is communicated with a second oil port (B) of the second variable pump module (2);
an oil inlet (D) of the second auxiliary pump (221) is communicated with an oil inlet (G) of the second variable pump module (2);
an oil inlet of the second pressure switch (23) is communicated with an oil outlet (C) of the second auxiliary pump (221).
4. The hydraulic system according to claim 3, further comprising an oil replenishment distributor module (5), the oil replenishment distributor module (5) comprising a first oil replenishment check valve (51), a second oil replenishment check valve (52), a third oil replenishment check valve (53) and a fourth oil replenishment check valve (54);
the first variable pump module (1) is provided with a fourth oil port (D), the oil outlet (C) of the first auxiliary pump (121) is communicated with the fourth oil port (D) of the first variable pump module (1), the second variable pump module (2) is provided with a fourth oil port (D), and the oil outlet (C) of the second auxiliary pump (221) is communicated with the fourth oil port (D) of the second variable pump module (2);
an oil inlet of the first oil supplementing check valve (51) is communicated with a fourth oil port (D) of the first variable pump module (1), and an oil outlet of the first oil supplementing check valve (51) is respectively communicated with a first oil port (A) and a second oil port (B) of the first motor (M1);
an oil inlet of the second oil supplementing check valve (52) is communicated with a fourth oil port (D) of the second variable pump module (2), and an oil outlet of the second oil supplementing check valve (52) is respectively communicated with a first oil port (A) and a second oil port (B) of the first motor (M1);
an oil inlet of the third oil supplementing check valve (53) is communicated with a fourth oil port (D) of the first variable pump module (1), and an oil outlet of the third oil supplementing check valve (53) is respectively communicated with a first oil port (A) and a second oil port (B) of the second motor (M2);
an oil inlet of the fourth oil supplementing check valve (54) is communicated with a fourth oil port (D) of the second variable pump module (2), and an oil outlet of the fourth oil supplementing check valve (54) is respectively communicated with a first oil port (A) and a second oil port (B) of the second motor (M2).
5. The hydraulic system according to claim 4, characterized in that it further comprises a first damping module (6), said first damping module (6) comprising a first two-way relief valve (61), a first damping one-way valve (62) and a second damping one-way valve (63);
a first port (A1) and a first control port (E1) of the first two-way relief valve (61) are both communicated with a first port (A) of the first motor (M1), and a second port (A2) and a second control port (E2) of the first two-way relief valve (61) are both communicated with a second port (B) of the first motor (M1);
an oil inlet of the first damping check valve (62) is respectively communicated with an oil outlet of the first oil supplementing check valve (51) and an oil outlet of the second oil supplementing check valve (52), and an oil outlet of the first damping check valve (62) is communicated with a first oil port (A1) of the first two-way safety valve (61);
an oil inlet of the second damping check valve (63) is respectively communicated with an oil outlet of the first oil supplementing check valve (51) and an oil outlet of the second oil supplementing check valve (52), and an oil outlet of the second damping check valve (63) is communicated with a second oil port (A2) of the first two-way safety valve (61).
6. The hydraulic system according to claim 4, further comprising a second damping module (7), the second damping module (7) comprising a second bidirectional relief valve (71), a third damping check valve (72) and a fourth damping check valve (73);
a first oil port (A1) and a first control oil port (E1) of the second bidirectional safety valve (71) are both communicated with a first oil port (A) of the second motor (M2), and a second oil port (A2) and a second control oil port (E2) of the second bidirectional safety valve (71) are both communicated with a second oil port (B) of the second motor (M2);
an oil inlet of the third damping check valve (72) is respectively communicated with an oil outlet of the third oil supplementing check valve (53) and an oil outlet of the fourth oil supplementing check valve (54), and an oil outlet of the third damping check valve (72) is communicated with a first oil port (A1) of the second bidirectional safety valve (71);
an oil inlet of the fourth damping check valve (73) is respectively communicated with an oil outlet of the third oil supplementing check valve (53) and an oil outlet of the fourth oil supplementing check valve (54), and an oil outlet of the fourth damping check valve (73) is communicated with a second oil port (A2) of the second bidirectional safety valve (71).
7. The hydraulic system according to any one of claims 1 to 6, wherein a partition (40) for dividing the oil tank (4) into a first chamber (S1) and a second chamber (S2) is provided in the oil tank (4), the first chamber (S1) and the top of the second chamber (S2) are communicated, the oil drain (T) of the first motor (M1) is communicated with the first chamber (S1), an oil drain port (T) of the second motor (M2) communicates with the second chamber (S2), an oil inlet (G) of the first variable pump module (1) communicates with the first chamber (S1), an oil inlet (G) of the second variable pump module (2) communicates with the second chamber (S2), an oil drain (T) of the fault isolation module (3) is in communication with the first chamber (S1) or the second chamber (S2).
8. The hydraulic system of claim 7, further comprising a first level relay (81), a second level relay (82), and a third level relay (83);
the first liquid level relay (81) is used for detecting the liquid level height in the first chamber (S1), the second liquid level relay (82) is used for detecting the liquid level height in the second chamber (S2), and the third liquid level relay (83) is used for detecting the liquid level height at the top of the oil tank (4).
9. The hydraulic system according to claim 8, characterized in that it further comprises an air filter (94), said air filter (94) being connected at the top of the oil tank (4).
10. A control method of a hydraulic system of a rudder propeller device for controlling the hydraulic system according to any one of claims 1 to 9, the control method comprising:
controlling a first oil port (A) and a third oil port (C) of the first sequence valve (31) to be communicated, a second oil port (B) and a fourth oil port (D) to be communicated, controlling the first oil port (A) and the third oil port (C) of the second sequence valve (32) to be communicated, controlling the second oil port (B) and the fourth oil port (D) to be communicated, controlling the first oil port (A) and the third oil port (C) of the fault isolation valve (35) to be communicated, controlling the second oil port (B) and the fourth oil port (D) to be communicated, controlling the first oil port (A), the second oil port (B), the third oil port (C) and the fourth oil port (D) of the first two-position four-way valve (33) to be cut off, and controlling the first oil port (A), the second oil port (B), the third oil port (C) and the fourth oil port (D) of the second two-position four-way valve (34) to be cut off;
controlling at least one of the first and second variable pump modules (1, 2) to supply oil to the first and second motors (M1, M2);
when an oil path between the first variable pump module (1) and the first motor (M1) breaks down, controlling a first oil port (A), a second oil port (B), a third oil port (C) and a fourth oil port (D) of the fault isolation valve (35) to be cut off, and controlling the first oil port (A), the second oil port (B), the third oil port (C) and the fourth oil port (D) of the second two-position four-way valve (34) to be cut off; controlling a first oil port (A) and a third oil port (C) of the first sequence valve (31) to be communicated, a second oil port (B) and a fourth oil port (D) to be communicated, controlling the first oil port (A) and the third oil port (C) of the first sequence valve (31) to be communicated, controlling the second oil port (B) and the fourth oil port (D) to be communicated, controlling a first oil port (A) and a third oil port (C) of the first two-position four-way valve (33) to be communicated, controlling the second oil port (B) and the fourth oil port (D) to be communicated, simultaneously controlling the first variable pump module (1) to stop working, and controlling the second variable pump module (2) to supply oil to the second motor (M2);
when an oil path between the second variable pump module (2) and the second motor (M2) breaks down, controlling a first oil port (A), a second oil port (B), a third oil port (C) and a fourth oil port (D) of the fault isolation valve (35) to be cut off, and controlling the first oil port (A), the second oil port (B), the third oil port (C) and the fourth oil port (D) of the first two-position four-way valve (33) to be cut off; and controlling a first oil port (A) and a third oil port (C) of the first sequence valve (31) to be communicated, a second oil port (B) and a fourth oil port (D) to be communicated, the first oil port (A) and the third oil port (C) of the second sequence valve (32) to be communicated, the second oil port (B) and the fourth oil port (D) to be communicated, the first oil port (A) and the third oil port (C) of the second two-position four-way valve (34) to be communicated, the second oil port (B) and the fourth oil port (D) to be communicated, and simultaneously controlling the second variable pump module (2) to stop working and controlling the first variable pump module (1) to supply oil to the first motor (M1).
Technical Field
The invention relates to the technical field of hydraulic control, in particular to a hydraulic system of a full-rotation rudder propeller device and a control method thereof.
Background
The full-rotation rudder propeller device can provide thrust of all-directional vectors and is important equipment of dynamic positioning engineering icebreakers in extreme environments.
The turning is one of the most frequent actions in the working process of the full-turning rudder propeller device, and the full-turning rudder propeller device is usually driven to turn by a low-speed high-torque hydraulic motor. Specifically, when the rudder propeller rotates, the hydraulic system drives the hydraulic motor to rotate to drive the driving gear to rotate, and the driving gear drives the slewing bearing inner ring gear meshed with the driving gear to rotate, so that the full-rotation rudder propeller device finally rotates.
In the process of implementing the invention, the inventor finds that the prior art has at least the following problems:
when a fault occurs in a hydraulic system of the full-rotation rudder propeller device, hydraulic oil in the hydraulic system leaks or the pressure of the hydraulic oil is low, the hydraulic system cannot provide enough driving force to drive the hydraulic motor to rotate. If the fault cannot be eliminated or transferred in time, the whole hydraulic system fails, so that the capability requirement of the icebreaker on safe port returning in an extreme environment cannot be met.
Disclosure of Invention
The embodiment of the invention provides a hydraulic system of a full-rotation rudder propeller device and a control method thereof, which can separate fault areas in the hydraulic system and ensure that other areas except the fault areas in the hydraulic system can still work normally. The technical scheme is as follows:
in a first aspect, a hydraulic system of a full-rotation rudder propeller device is provided, and the hydraulic system comprises a first variable pump module, a second variable pump module, a fault isolation module, a first motor, a second motor and an oil tank;
the first variable pump module and the second variable pump module are respectively provided with a first oil port, a second oil port and an oil inlet, and the fault isolation module is provided with a first oil port, a second oil port, a third oil port, a fourth oil port, a fifth oil port, a sixth oil port, a seventh oil port, an eighth oil port and an oil drainage port;
a first oil port of the first variable pump module is communicated with a first oil port of the fault isolation module, and a second oil port of the first variable pump module is communicated with a second oil port of the fault isolation module; a first oil port of the second variable pump module is communicated with a third oil port of the fault isolation module, and a second oil port of the second variable pump module is communicated with a fourth oil port of the fault isolation module; a fifth oil port of the fault isolation module is communicated with a first oil port of the first motor, and a seventh oil port of the fault isolation module is communicated with a second oil port of the first motor; a sixth oil port of the fault isolation module is communicated with a first oil port of the second motor, and an eighth oil port of the fault isolation module is communicated with a second oil port of the second motor;
the oil inlet of the first variable pump module, the oil inlet of the second variable pump module, the oil drainage port of the fault isolation module, the oil drainage port of the first motor and the oil drainage port of the second motor are all communicated with the oil tank;
the fault isolation module comprises a first sequence valve, a second sequence valve, a first two-position four-way valve, a second two-position four-way valve and a fault isolation valve;
a first oil port of the first sequence valve is communicated with a first oil port of the fault isolation module, a second oil port of the first sequence valve is communicated with a second oil port of the fault isolation module, a third oil port of the first sequence valve is communicated with a third oil port of the first two-position four-way valve, and a fourth oil port of the first sequence valve is communicated with a fourth oil port of the first two-position four-way valve;
a first oil port of the second sequence valve is communicated with a third oil port of the fault isolation module, a second oil port of the second sequence valve is communicated with a fourth oil port of the fault isolation module, a third oil port of the second sequence valve is communicated with a third oil port of a second two-position four-way valve, and a fourth oil port of the second sequence valve is communicated with a fourth oil port of the second two-position four-way valve;
a first oil port and a second oil port of the first two-position four-way valve, and a first oil port and a second oil port of the second two-position four-way valve are both communicated with an oil drainage port of the fault isolation module, a third oil port of the first two-position four-way valve is communicated with a fifth oil port of the fault isolation module, a fourth oil port of the first two-position four-way valve is communicated with a seventh oil port of the fault isolation module, a third oil port of the second two-position four-way valve is communicated with a sixth oil port of the fault isolation module, and a fourth oil port of the second two-position four-way valve is communicated with an eighth oil port of the fault isolation module;
the first oil port of the fault isolation valve is respectively communicated with the third oil port of the first sequence valve and the third oil port of the first two-position four-way valve, the second oil port of the fault isolation valve is respectively communicated with the fourth oil port of the first sequence valve and the fourth oil port of the first two-position four-way valve, the third oil port of the fault isolation valve is respectively communicated with the third oil port of the second sequence valve and the third oil port of the second two-position four-way valve, and the fourth oil port of the fault isolation valve is respectively communicated with the fourth oil port of the second sequence valve and the fourth oil port of the second two-position four-way valve.
Further, the first variable pump module comprises a first servo control mechanism, a first variable pump and a first pressure switch;
a first auxiliary pump is integrated in the first variable pump, an oil outlet of the first variable pump is communicated with a first oil port of the first variable pump module, and an oil outlet of the first variable pump is communicated with a second oil port of the first variable pump module;
the oil inlet of the first auxiliary pump is communicated with the oil inlet of the first variable pump module;
an oil inlet of the first pressure switch is communicated with an oil outlet of the first auxiliary pump.
Further, the second variable pump module comprises a second servo control mechanism, a second variable pump and a second pressure switch;
a second auxiliary pump is integrated inside the second variable pump, an oil outlet of the second variable pump is communicated with a first oil port of the second variable pump module, and an oil outlet of the second variable pump is communicated with a second oil port of the second variable pump module;
the oil inlet of the second auxiliary pump is communicated with the oil inlet of the second variable pump module;
and an oil inlet of the second pressure switch is communicated with an oil outlet of the second auxiliary pump.
Furthermore, the hydraulic system also comprises an oil supplementing distributor module, wherein the oil supplementing distributor module comprises a first oil supplementing one-way valve, a second oil supplementing one-way valve, a third oil supplementing one-way valve and a fourth oil supplementing one-way valve;
the first variable pump module is provided with a fourth oil port, the oil outlet of the first auxiliary pump is communicated with the fourth oil port of the first variable pump module, the second variable pump module is provided with a fourth oil port, and the oil outlet of the second auxiliary pump is communicated with the fourth oil port of the second variable pump module;
an oil inlet of the first oil supplementing one-way valve is communicated with a fourth oil port of the first variable pump module, and an oil outlet of the first oil supplementing one-way valve is respectively communicated with a first oil port and a second oil port of the first motor;
an oil inlet of the second oil supplementing one-way valve is communicated with a fourth oil port of the second variable pump module, and an oil outlet of the second oil supplementing one-way valve is respectively communicated with a first oil port and a second oil port of the first motor;
an oil inlet of the third oil supplementing one-way valve is communicated with a fourth oil port of the first variable pump module, and an oil outlet of the third oil supplementing one-way valve is respectively communicated with a first oil port and a second oil port of the second motor;
an oil inlet of the fourth oil supplementing one-way valve is communicated with a fourth oil port of the second variable pump module, and an oil outlet of the fourth oil supplementing one-way valve is respectively communicated with the first oil port and the second oil port of the second motor.
Further, the hydraulic system further comprises a first damping module, wherein the first damping module comprises a first two-way relief valve, a first damping one-way valve and a second damping one-way valve;
the first oil port and the first control oil port of the first bidirectional safety valve are both communicated with the first oil port of the first motor, and the second oil port and the second control oil port of the first bidirectional safety valve are both communicated with the second oil port of the first motor;
an oil inlet of the first damping one-way valve is respectively communicated with an oil outlet of the first oil supplementing one-way valve and an oil outlet of the second oil supplementing one-way valve, and an oil outlet of the first damping one-way valve is communicated with a first oil port of the first bidirectional safety valve;
the oil inlet of the second damping one-way valve is respectively communicated with the oil outlet of the first oil supplementing one-way valve and the oil outlet of the second oil supplementing one-way valve, and the oil outlet of the second damping one-way valve is communicated with the second oil port of the first bidirectional safety valve.
Further, the hydraulic system further includes a second damping module including a second bi-directional relief valve, a third damping check valve, and a fourth damping check valve;
the first oil port and the first control oil port of the second bidirectional safety valve are both communicated with the first oil port of the second motor, and the second oil port and the second control oil port of the second bidirectional safety valve are both communicated with the second oil port of the second motor;
an oil inlet of the third damping one-way valve is respectively communicated with an oil outlet of the third oil supplementing one-way valve and an oil outlet of the fourth oil supplementing one-way valve, and an oil outlet of the third damping one-way valve is communicated with a first oil port of the second bidirectional safety valve;
an oil inlet of the fourth damping one-way valve is respectively communicated with an oil outlet of the third oil supplementing one-way valve and an oil outlet of the fourth oil supplementing one-way valve, and an oil outlet of the fourth damping one-way valve is communicated with a second oil port of the second bidirectional safety valve.
Furthermore, a partition plate used for dividing the oil tank into a first cavity and a second cavity is arranged in the oil tank, the top of the first cavity is communicated with the top of the second cavity, an oil drainage port of the first motor is communicated with the first cavity, an oil drainage port of the second motor is communicated with the second cavity, an oil inlet of the first variable pump module is communicated with the first cavity, an oil inlet of the second variable pump module is communicated with the second cavity, and an oil drainage port of the fault isolation module is communicated with the first cavity or the second cavity.
Further, the hydraulic system further comprises a first liquid level relay, a second liquid level relay and a third liquid level relay;
the first liquid level relay is used for detecting the liquid level height in the first cavity, the second liquid level relay is used for detecting the liquid level height in the second cavity, and the third liquid level relay is used for detecting the liquid level height at the top of the oil tank.
Further, the hydraulic system also comprises an air filter, and the air filter is connected to the top of the oil tank.
In a second aspect, there is provided a control method of a hydraulic system of a rudder propeller device for controlling the hydraulic system according to the first aspect, the control method including:
controlling the first oil port and the third oil port of the first sequence valve to be communicated, the second oil port and the fourth oil port to be communicated, controlling the first oil port and the third oil port of the second sequence valve to be communicated, controlling the second oil port and the fourth oil port to be communicated, controlling the first oil port and the third oil port of the fault isolation valve to be communicated, controlling the first oil port, the second oil port, the third oil port and the fourth oil port of the first two-position four-way valve to be cut off, and controlling the first oil port, the second oil port, the third oil port and the fourth oil port of the second two-position four-way valve to be cut off;
controlling at least one of the first and second variable pump modules to supply oil to the first and second motors;
when an oil path between the first variable pump module and the first motor breaks down, controlling the first oil port, the second oil port, the third oil port and the fourth oil port of the fault isolation valve to be cut off, and controlling the first oil port, the second oil port, the third oil port and the fourth oil port of the second two-position four-way valve to be cut off; controlling the first oil port and the third oil port of the first sequence valve to be communicated, the second oil port and the fourth oil port to be communicated, controlling the first oil port and the third oil port of the first sequence valve to be communicated, controlling the second oil port and the fourth oil port to be communicated, controlling the first oil port and the third oil port of the first two-position four-way valve to be communicated, controlling the second oil port and the fourth oil port to be communicated, simultaneously controlling the first variable pump module to stop working, and controlling the second variable pump module to supply oil to the second motor;
when an oil path between the second variable pump module and the second motor has a fault, controlling the first oil port, the second oil port, the third oil port and the fourth oil port of the fault isolation valve to be cut off, and controlling the first oil port, the second oil port, the third oil port and the fourth oil port of the first two-position four-way valve to be cut off; and controlling the first oil port and the third oil port of the first sequence valve to be communicated, the second oil port and the fourth oil port to be communicated, the first oil port and the third oil port of the second two-position four-way valve to be communicated, the second oil port and the fourth oil port to be communicated, and simultaneously controlling the second variable pump module to stop working and controlling the first variable pump module to supply oil to the first motor.
The technical scheme provided by the embodiment of the invention has the following beneficial effects:
the fault isolation module is arranged in the hydraulic system, the hydraulic system can be divided into two independent systems, when a fault occurs in an oil path between the first variable pump module and the first motor, the fault isolation valve can be controlled to be closed, the first sequence valve and the first two-position four-way valve are controlled to be opened, the first motor is in a free wheel working condition, the second variable pump module can drive the second motor to rotate along with the free slip of the rotary support, the inner gear ring of the rotary support is driven to rotate, and the rotation of the full-rotary rudder propeller device is realized. On the contrary, when an oil path between the second variable pump module and the second motor has a fault, the fault isolation valve can be controlled to be closed, and the second sequence valve and the second two-position four-way valve are controlled to be opened, so that the second motor is in a free wheel working condition, and freely rotates along with the rotation support, at the moment, the first variable pump module can drive the first motor to rotate to drive the inner gear ring of the rotation support to rotate, and the rotation of the full-rotation rudder propeller device is realized. Therefore, the hydraulic system provided by the invention can isolate the fault oil way and increase the mean time without fault of the hydraulic system, thereby greatly improving the working stability and reliability of the full-rotation rudder propeller.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic diagram of a hydraulic system of a rudder propeller device according to an embodiment of the present invention;
FIG. 2 is a hydraulic schematic of a fault isolation module provided by an embodiment of the present invention;
FIG. 3 is a hydraulic schematic of a first variable displacement pump module provided by an embodiment of the present invention;
FIG. 4 is a hydraulic schematic of a second variable displacement pump module provided by an embodiment of the present invention;
FIG. 5 is a hydraulic schematic diagram of an oil replenishment distributor module provided in accordance with an embodiment of the present invention;
FIG. 6 is a hydraulic schematic of a first damping module provided in accordance with an embodiment of the present invention;
FIG. 7 is a hydraulic schematic of a second damping module provided in accordance with an embodiment of the present invention;
fig. 8 is a flowchart of a control method of a hydraulic system of a rudder propeller device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
Fig. 1 is a schematic diagram of a hydraulic system of a rudder propeller device according to an embodiment of the present invention, and as shown in fig. 1, the hydraulic system includes a first
The first
The first port a of the first
the second port B of the first
The first port a of the second
The fifth port C1 of the
The oil inlet G of the first
Fig. 2 is a hydraulic schematic diagram of a fault isolation module according to an embodiment of the present invention, and as shown in fig. 2 and in conjunction with fig. 1, the
The first port a of the
The first port a of the
The first oil port a and the second oil port B of the first two-position four-
The first port a of the
In the present embodiment, the output shaft of the first motor M1 is connected to a first drive gear (not shown), the output shaft of the second motor M2 is connected to a second drive gear (not shown), and the first drive gear and the second drive gear are engaged with an inner ring gear of the slewing bearing P.
According to the embodiment of the invention, the fault isolation module is arranged in the hydraulic system, so that the hydraulic system can be divided into two independent systems, when a fault occurs in an oil path between the first variable pump module and the first motor, the fault isolation valve can be controlled to be closed, and the first sequence valve and the first two-position four-way valve are controlled to be opened, so that the first motor is in a free wheel working condition, and can freely rotate along with the rotation support, at the moment, the second variable pump module can drive the second motor to rotate to drive the inner gear ring of the rotation support to rotate, and the rotation of the full-rotation rudder propeller device is realized. On the contrary, when an oil path between the second variable pump module and the second motor has a fault, the fault isolation valve can be controlled to be closed, and the second sequence valve and the second two-position four-way valve are controlled to be opened, so that the second motor is in a free wheel working condition, and freely rotates along with the rotation support, at the moment, the first variable pump module can drive the first motor to rotate to drive the inner gear ring of the rotation support to rotate, and the rotation of the full-rotation rudder propeller device is realized. Therefore, the hydraulic system provided by the invention can isolate the fault oil way and increase the mean time without fault of the hydraulic system, thereby greatly improving the working stability and reliability of the full-rotation rudder propeller.
Further, in this embodiment, the first
The second
In this embodiment, the
The
The
The first two-position four-
The second two-position four-
The first two-position four-way valve 33 (or the second two-position four-way valve 34) can control the opening and closing of the oil inlet and the oil outlet of the first motor M1 (or the second motor M2), and when the first two-position four-way valve 33 (or the second two-position four-way valve 34) is in the first state, the first motor M1 (or the second motor M2) can be in a free wheel working condition and freely rotates along with the rotation support P.
The
Optionally, the first two-position four-
Fig. 3 is a hydraulic schematic diagram of a first variable displacement pump module according to an embodiment of the present invention, and as shown in fig. 3 and in conjunction with fig. 1, the first variable
A first
An oil outlet C of the first
An oil inlet of the
In this embodiment, the
The first
Further, as shown in fig. 3, the first
Optionally, the first variable
An oil inlet of the
The first port a1 and the first control port E1 of the first bidirectional high-
The oil inlet and control port of the first auxiliary
an oil outlet of the first auxiliary
Alternatively, the set pressure of the first auxiliary
In this embodiment, the
Fig. 4 is a hydraulic schematic diagram of a second variable displacement pump module according to an embodiment of the present invention, and as shown in fig. 4 and in conjunction with fig. 1, the second variable
A second auxiliary pump 221 is integrated inside the second
An oil outlet C of the second auxiliary pump 221 is communicated with a third oil port C of the second
An oil inlet of the second pressure switch 23 is communicated with the third oil port C of the second auxiliary pump 221, and the second pressure switch 23 can detect and alarm the pressure of the lowest oil pumped out by the second auxiliary pump 221.
In this embodiment, the second pressure switch 23 alarms when the pressure of the oil pumped by the second auxiliary pump 221 is lower than 10 MPa.
The second
Further, as shown in fig. 4, the second
Alternatively, the combination of the second
An oil inlet of the second filter 24 is communicated with an oil outlet C of the second auxiliary pump 221, an oil outlet of the second filter 24 is respectively communicated with an oil inlet of the check valve 25 and an oil inlet of the check valve 26, an oil outlet of the check valve 25 is communicated with a first oil port a of the second
The first port a2 and the first control port E2 of the second bidirectional high-pressure relief valve 27 communicate with the first port a of the second
An oil inlet and a control oil port of the second auxiliary pump overflow valve 28 are communicated with an oil outlet of the second filter 24, and an oil outlet of the second auxiliary pump overflow valve 28 is communicated with a fifth oil port E of the second
Alternatively, the set pressure of the second auxiliary pump relief valve 28 may be 24 Mpa.
In the present embodiment, the oil pumped out from the oil outlet C of the second auxiliary pump 221 is pressurized and supplemented to the second motor M2 by the provision of the check valve 25 and the check valve 26, and on the other hand, the first auxiliary pump 221 can supply the pilot control oil to the second servo control mechanism 21.
Fig. 5 is a hydraulic schematic diagram of an oil supply distributor module according to an embodiment of the present invention, and as shown in fig. 5 and in conjunction with fig. 1, the hydraulic system further includes an oil
An oil inlet of the first oil supplementing
An oil inlet of the second oil supplementing
An oil inlet of the third oil supplementing
An oil inlet of the fourth oil supplementing
By providing the oil
Fig. 6 is a hydraulic schematic diagram of a first damping module according to an embodiment of the present invention, and as shown in fig. 6 in conjunction with fig. 1, the hydraulic system further includes the first damping
The first port a1 and the first control port E1 of the first two-
An oil inlet of the first damping
An oil inlet of the second damping
Fig. 7 is a hydraulic schematic diagram of a second shock absorption module according to an embodiment of the present invention, and as shown in fig. 7 in conjunction with fig. 1, the hydraulic system further includes a second
The first port a1 and the first control port E1 of the second
An oil inlet of the third damping
An oil inlet of the fourth damping
Through the arrangement of the first damping
Further, referring to fig. 1, a
In the present embodiment, the height of the
Further, referring to fig. 1, the hydraulic system further comprises a
The
Optionally, the
For example, if the level of the liquid in the
When the liquid level in the first chamber S1 (or the second chamber S2) is lower than h2, the first liquid level relay 81 (or the second liquid level relay 82) gives an alarm, and 0 < h2 <
Further, the hydraulic system further comprises a control module, and the control module is configured to control the
For example, when there is a large leakage in the hydraulic system, the pressure of the oil pumped by the first auxiliary pump 121 (or the second auxiliary pump 221) is reduced, and the oil cannot be continuously supplied to the closed circuit. When the first pressure switch 13 (or the second pressure switch 23) detects that the pressure continuously drops below the set value (for example, 17MPa) for a period of time, the control module may determine that a fault occurs in the oil path between the first
When there is a small leak in the hydraulic system, the pressure of the oil pumped by the first auxiliary pump 121 (or the second auxiliary pump 221) does not immediately drop below the set value, the first pressure switch 13 (or the second pressure switch 23) does not alarm, but the oil in the first chamber S1 (or the second chamber S2) of the
Optionally, referring to fig. 1, the hydraulic system may further include a
An oil inlet of the
The
Optionally, the hydraulic system may further include a
An oil inlet of the
The oil in the second chamber S2 can be prevented from flowing backward by providing the
Optionally, the hydraulic system may further comprise a
Optionally, the hydraulic system may further include a first alarm module and a second alarm module. The first alarm module is configured to alarm when the
Optionally, the hydraulic system may further include an
It should be noted that, in the present embodiment, the top of the
Optionally, the bottom of the
Fig. 8 is a flowchart of a control method of a hydraulic system of a rudder propeller device according to an embodiment of the present invention, and as shown in fig. 8, the control method is used for controlling the hydraulic system shown in fig. 1, and the control method includes:
Illustratively, referring to fig. 1, the first port a and the third port C of the
The first port a and the third port C of the
And controlling the first oil port A and the third oil port C of the
The first port a, the second port B, the third port C and the fourth port D of the first two-position four-
The first port a, the second port B, the third port C and the fourth port of the second two-position four-
The first motor M1 and the second motor M2 are now in parallel.
And step 802, controlling at least one of the first variable pump module and the second variable pump module to supply oil to the first motor and the second motor.
Normally, one of the first
For example, when the first variable
Further, before performing
it is determined whether a failure occurs in the oil path between the first
In one implementation of the present invention, the control module may determine whether the oil path between the first
In another implementation of the present invention, whether the oil path between the first
In the present embodiment, the fault generated in the oil path between the first variable
The fault generated in the oil path between the second
Wherein, the motor external leakage refers to leakage between the motor and the external environment.
And step 803, when the oil path from the first variable pump module to the first motor M1 is in fault, the fault isolation valve and the second two-position four-way valve are placed in the second state, the first sequence valve, the second sequence valve and the first two-position four-way valve are placed in the first state, the first variable pump module is controlled to stop working, and the second variable pump module is controlled to supply oil to the second motor.
Illustratively, the first port a, the second port B, the third port C, and the fourth port D of the
The first port a, the second port B, the third port C and the fourth port D of the second two-position four-
The first port a and the third port C of the
The first port a and the third port C of the
The first port A and the third port C of the first two-position four-
The hydraulic system can be divided into two independent systems by executing the
And step 804, when an oil path between the second variable pump module and the second motor has a fault, placing the fault isolation valve and the first two-position four-way valve in a second state, placing the first sequence valve, the second sequence valve and the second two-position four-way valve in a first state, controlling the second variable pump module to stop working, and controlling the first variable pump module to supply oil to the first motor.
Illustratively, the first port a, the first port B, the first port C, and the first port D of the
The first port a, the first port B, the first port C, and the first port D of the first two-position four-
The first port a of the
The first port a of the
The first port a and the first port C of the second two-position four-
The hydraulic system may be divided into two separate systems by performing
According to the embodiment of the invention, the fault isolation module is arranged in the hydraulic system, so that the hydraulic system can be divided into two independent systems, when a fault occurs in an oil path between the first variable pump module and the first motor, the fault isolation valve can be controlled to be closed, and the first sequence valve and the first two-position four-way valve are controlled to be opened, so that the first motor is in a free wheel working condition, and can freely rotate along with the rotation support, at the moment, the second variable pump module can drive the second motor to rotate to drive the inner gear ring of the rotation support to rotate, and the rotation of the full-rotation rudder propeller device is realized. On the contrary, when an oil path between the second variable pump module and the second motor has a fault, the fault isolation valve can be controlled to be closed, and the second sequence valve and the second two-position four-way valve are controlled to be opened, so that the second motor is in a free wheel working condition, and freely rotates along with the rotation support, at the moment, the first variable pump module can drive the first motor to rotate to drive the inner gear ring of the rotation support to rotate, and the rotation of the full-rotation rudder propeller device is realized. Therefore, the hydraulic system provided by the invention can isolate the fault oil way and increase the mean time without fault of the hydraulic system, thereby greatly improving the working stability and reliability of the full-rotation rudder propeller.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
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