Valve assembly

Abstract

A valve group includes a valve plate and a hydraulic reversing valve, a solenoid valve, a hydraulic lock group, a sequence valve and a first overflow valve arranged on the valve plate. The valve plate includes a first surface, a second surface and a third surface adjacent to each other. The hydraulic reversing valve, the solenoid valve and the hydraulic lock group are respectively arranged on the first surface, the hydraulic reversing valve is arranged between the solenoid valve and the hydraulic lock group, and the solenoid valve is close to the vertex where the first surface, the second surface and the third surface intersect. The sequence valve is arranged on the second surface, and the first overflow valve is arranged on the third surface. The first control valve port of the solenoid valve is connected to the first end of the hydraulic reversing valve, the second control valve port of the solenoid valve is connected to the second end of the hydraulic reversing valve, the first hydraulic lock is connected to the first output valve port of the hydraulic reversing valve, the second hydraulic lock is connected to the second output valve port of the hydraulic reversing valve, and the first oil outlet valve port of the sequence valve is respectively connected to the first upstream valve port of the first overflow valve and the second oil inlet valve port of the solenoid valve.

Description

Technical Field

[0001] The present application relates to the technical field of hydraulic valve groups, for example, to a valve group suitable for rotary vane steering gears. Background Art

[0002] The marine hydraulic steering gear is the power source for manipulating the rotation of the rudder blades, which changes the course of the ship. The action of the hydraulic steering gear determines the course and safety of the ship, so it is one of the most important equipment on the ship. The matching performance of the rotary vane steering gear with the rudder is better than that of the tilt cylinder steering gear and the fork steering gear, so it is increasingly used in various types of ships. The valve group of the rotary vane steering gear is used to control the rotation of the actuator of the rotary vane steering gear. In order to ensure the stable working state of the valve group, it is necessary to add multiple valves to work together. The more valves there are, the larger the volume of the valve group will be. The valve group occupies too much space, which brings difficulties to the design of the rotary vane steering gear. Summary of the invention

[0003] The present application provides a valve group, which can reduce the volume of the valve group, improve the degree of integration of the valve group, and make the valve group occupy a smaller space.

[0004] A valve group, comprising a valve plate and a hydraulic reversing valve, a solenoid valve, a hydraulic lock group, a sequence valve and a first relief valve arranged on the valve plate; the valve plate comprises a first surface, a second surface and a third surface adjacent to each other, the hydraulic reversing valve, the solenoid valve and the hydraulic lock group are respectively arranged on the first surface, the hydraulic reversing valve is arranged between the solenoid valve and the hydraulic lock group, the solenoid valve is closer to the vertex angle where the first surface, the second surface and the third surface intersect than the hydraulic reversing valve and the hydraulic lock group, the sequence valve is arranged on the second surface, The first overflow valve is arranged on the third surface, the first control valve port of the solenoid valve is connected to the first end of the hydraulic reversing valve, the second control valve port of the solenoid valve is connected to the second end of the hydraulic reversing valve, the hydraulic lock group includes a first hydraulic lock and a second hydraulic lock, the first hydraulic lock is connected to the first output valve port of the hydraulic reversing valve, the second hydraulic lock is connected to the second output valve port of the hydraulic reversing valve, the first upstream valve port of the first overflow valve is connected and the second oil inlet valve port of the solenoid valve are respectively connected to the first oil outlet valve port of the sequence valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0005] Figure 1 is a structural schematic diagram of a valve group provided by an embodiment of the present application from a first perspective;

[0006] Figure 2 is a structural schematic diagram of a valve group provided by an embodiment of the present application from a second perspective;

[0007] Figure 3It is a structural schematic diagram of the valve group provided by an embodiment of the present application from a third perspective.

[0008] In the figure:

[0009] 1. valve plate; 101. first surface; 102. second surface; 103. third surface; 104. fourth surface;

[0010] 2. Hydraulic reversing valve; 3. Solenoid valve; 4. Sequence valve; 5. First hydraulic lock; 6. Second hydraulic lock; 7. First overflow valve; 8. Second overflow valve; 9. Third overflow valve; 10. First pressure gauge; 11. Second pressure gauge; 12. First positioning member; 13. Second positioning member; 14. First pressure gauge switch; 15. Second pressure gauge switch. DETAILED DESCRIPTION

[0011] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0012] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0013] The marine hydraulic steering gear is the power source for manipulating the rotation of the rudder blades, and the rotation of the rudder blades changes the heading of the ship. The action of the hydraulic steering gear determines the heading and safety of the ship, so it is one of the most important equipment on the ship. The matching performance of the rotary vane steering gear with the rudder is better than that of the swing cylinder steering gear and the fork steering gear, so it is increasingly used in many types of ships. The valve group of the rotary vane steering gear is configured to control the rotation of the actuator of the rotary vane steering gear. In order to ensure the stability of the working state of the valve group, it is necessary to add a variety of valves to work together. The more valves there are, the larger the volume of the valve group will inevitably be. The space occupied by the valve group is too large, which brings difficulties to the design of the rotary vane steering gear. Therefore, this embodiment provides a valve group suitable for a rotary vane steering gear to solve the above problems.

[0014] like Figure 1-Figure 3 As shown, the valve group includes a valve plate 1 and a hydraulic reversing valve 2, a solenoid valve 3, a hydraulic lock group, a sequence valve 4 and a first overflow valve 7 arranged on the valve plate 1. The valve plate 1 includes a first surface 101, a second surface 102 and a third surface 103 adjacent to each other. The hydraulic reversing valve 2, the solenoid valve 3 and the hydraulic lock group are arranged on the first surface 101, and the hydraulic reversing valve 2 is arranged between the solenoid valve 3 and the hydraulic lock group. The solenoid valve 3 is closer to the vertex where the first surface 101, the second surface 102 and the third surface 103 intersect than the hydraulic reversing valve 2 and the hydraulic lock group. The sequence valve 4 is arranged on the second surface 102, and the first overflow valve 7 is arranged on the third surface 103. The multiple valves of the valve group are arranged on different sides of the valve plate 1, which can effectively utilize the three-dimensional space, ensure that the distance between the connected valves is the shortest, so as to realize the reasonable spatial arrangement of the multiple valves, thereby reducing the volume of the valve group, improving the degree of integration of the valve group, and making the valve group occupy a smaller space.

[0015] In one embodiment, the valve group further includes a first positioning member 12, and the hydraulic reversing valve 2 is detachably connected to the first surface 101 of the valve plate 1 through the first positioning member 12. The detachable connection can reduce the difficulty of repairing the solenoid valve 3 or the valve plate 1, improve the maintenance efficiency, and facilitate the recovery of the valve body on the valve group. In one embodiment, a plurality of first positioning members 12 are provided to ensure that the hydraulic reversing valve 2 and the valve plate 1 are firmly connected.

[0016] In one embodiment, the valve group further includes a second positioning member 13, and the solenoid valve 3 is detachably connected to the valve plate 1 through the second positioning member 13. The detachable connection can reduce the difficulty of repairing the solenoid valve 3 or the valve plate 1, improve the maintenance efficiency, and facilitate the recovery of the valve body on the valve group. In one embodiment, a plurality of second positioning members 13 are provided to ensure that the solenoid valve 3 and the valve plate 1 are firmly connected.

[0017] In order to facilitate the installation of the sequence valve 4, the first relief valve 7 and the hydraulic lock group, in one embodiment, the hydraulic lock group includes a first hydraulic lock 5 and a second hydraulic lock 6, the sequence valve 4 is plugged into the second surface 102, the first relief valve 7 is threadedly connected to the third surface 103, and the first hydraulic lock 5 and the second hydraulic lock 6 are threadedly connected to the first surface 101. The first relief valve 7 is provided with a thread, and the inner wall of the through hole on the third surface 103 is provided with a thread. The thread on the inner wall of the through hole on the third surface 103 is provided corresponding to the thread on the first relief valve 7, so that the first relief valve 7 and the third surface 103 can be threadedly connected. In one embodiment, the outer walls of the first hydraulic lock 5 and the second hydraulic lock 6 are respectively provided with threads, and the inner walls of the two through holes on the first surface 101 are also respectively provided with threads. The threads on the inner walls of the two through holes on the first surface 101 correspond to the threads on the first hydraulic lock 5 and the second hydraulic lock 6, so that the first hydraulic lock 5 and the second hydraulic lock 6 are respectively threadedly connected to the first surface 101. The threaded connection can effectively ensure the firmness of the connection between the first overflow valve 7 , the first hydraulic lock 5 , and the second hydraulic lock 6 and the valve plate 1 .

[0018] In one embodiment, the first control valve port of the solenoid valve 3 is connected to the first end of the hydraulic reversing valve 2, and the second control valve port of the solenoid valve 3 is connected to the second end of the hydraulic reversing valve 2, so as to realize the control of the hydraulic reversing valve 2 by the solenoid valve 3. The hydraulic lock group includes a first hydraulic lock 5 and a second hydraulic lock 6, which are respectively connected to the first output valve port and the second output valve port of the hydraulic reversing valve 2. Since the first output valve port and the second output valve port are respectively connected to the two chambers of the actuator, and the actuator is driven to rotate by the pressure difference, the setting of the hydraulic lock group ensures the normal operation of the valve group when the load is too large. The first oil outlet valve port of the sequence valve 4 is connected to the first upstream valve port of the first relief valve 7, and the first oil outlet valve port is also connected to the second oil inlet valve port of the solenoid valve 3. The setting of the sequence valve 4 and the first relief valve 7 can effectively ensure the stability of the oil pressure of the hydraulic oil flowing into the two ends of the hydraulic reversing valve 2 through the solenoid valve 3, thereby ensuring the normal operation of the hydraulic reversing valve 2.

[0019] When the rudder is subjected to extremely large external loads such as waves, currents and other floating objects, the torque of the rudder exceeds the set output torque of the rotary vane steering gear, and the valve group needs to be unloaded in time to prevent the valve group from being damaged. Therefore, in one embodiment, the valve group also includes a second relief valve 8, the valve plate 1 includes a fourth surface 104, the fourth surface 104 is arranged opposite to the second surface 102, the second relief valve 8 is arranged on the fourth surface 104, and the second relief valve 8 is connected to the first hydraulic lock 5. In one embodiment, the second relief valve 8 is arranged at a position close to the position where the first hydraulic lock 5 is located to reduce the length of the connection passage between the two and ensure the minimum overall structural size. In one embodiment, the second relief valve 8 is threadedly connected to the fourth surface 104, that is, the second relief valve 8 is provided with a thread, and the thread on the second relief valve 8 corresponds to the thread on the inner wall of the through hole on the fourth surface 104, so that the second relief valve 8 can be threadedly connected to the fourth surface 104.

[0020] In one embodiment, the valve group further includes a third relief valve 9, which is also arranged on the fourth surface 104, and the third relief valve 9 is connected to the second hydraulic lock 6. In one embodiment, the third relief valve 9 is arranged close to the second hydraulic lock 6 to reduce the length of the connection passage between the two and ensure the minimum overall structural size. In one embodiment, the third relief valve 9 is threadedly connected to the fourth surface 104, that is, the third relief valve 9 is provided with a thread, and the inner wall of the through hole on the fourth surface 104 is provided with a corresponding thread, so that the third relief valve 9 can be threadedly connected to the fourth surface 104.

[0021] Since the oil pressure of the hydraulic oil flowing into the first oil inlet valve port of the hydraulic reversing valve 2 can represent the oil pressure flowing into the chamber of the actuator to a certain extent, that is, the oil pressure in the high-pressure area of ​​the actuator, the oil pressure affects the rotation angle and rotation speed of the actuator. Therefore, in order to monitor the oil pressure of the first oil inlet valve port of the hydraulic reversing valve 2 in real time, in one embodiment, the valve group further includes a first pressure gauge 10, the first pressure gauge 10 is arranged at the third surface 103, and the first pressure gauge 10 can be connected to the first oil inlet valve port of the hydraulic reversing valve 2.

[0022] In one embodiment, the valve group further includes a first pressure measuring passage and a first pressure gauge switch 14, the first end of the first pressure measuring passage is connected to the first oil inlet valve port, and the second end of the first pressure measuring passage is sequentially connected to the first pressure gauge switch 14 and the first pressure gauge 10. In one embodiment, the first pressure gauge switch 14 and the first pressure gauge 10 are threadedly connected through their own threads to ensure the sealing of the connection.

[0023] Since the oil pressure of the hydraulic oil flowing out of the first oil return valve port of the hydraulic reversing valve 2 can to a certain extent represent the oil pressure flowing out of the chamber of the actuator, that is, the oil pressure in the low-pressure area of ​​the actuator, the oil pressure will also affect the rotation angle and rotation speed of the actuator. Therefore, in order to detect the oil pressure of the first oil return valve port of the hydraulic reversing valve 2 in real time, in one embodiment, the valve group also includes a second pressure gauge 11, and the second pressure gauge 11 is also arranged at the third surface 103, and the second pressure gauge 11 can be connected to the first oil return valve port of the hydraulic reversing valve 2. The first pressure gauge 10 and the second pressure gauge 11 are arranged on the same surface, which can facilitate observation by the staff.

[0024] In one embodiment, the valve group further includes a second pressure measuring passage and a second pressure gauge switch 15, wherein the first end of the second pressure measuring passage is connected to the first oil return valve port, and the second end of the second pressure measuring passage is connected to the second pressure gauge switch 15 and the second pressure gauge 11 in sequence. In one embodiment, the second pressure gauge switch 15 and the second pressure gauge 10 are threadedly connected through their own threads to ensure the sealing of the connection.

Claims

1. A valve assembly, comprising a valve plate (1) and a hydraulic reversing valve (2), a solenoid valve (3), a hydraulic lock assembly, a sequence valve (4) and a first overflow valve (7) arranged on the valve plate (1); in, The valve plate (1) comprises a first surface (101), a second surface (102) and a third surface (103) which are adjacent to each other in pairs; the hydraulic reversing valve (2), the solenoid valve (3) and the hydraulic lock group are respectively arranged on the first surface (101); the hydraulic reversing valve (2) is arranged between the solenoid valve (3) and the hydraulic lock group; the solenoid valve (3) is closer to the vertex where the first surface (101), the second surface (102) and the third surface (103) intersect than the hydraulic reversing valve (2) and the hydraulic lock group; the sequence valve (4) is arranged on the third surface (103); the first overflow valve (7) is arranged on the second surface (102); the first control valve port of the solenoid valve (3) is in communication with the first end of the hydraulic reversing valve (2); and the second control valve port of the solenoid valve (3) is in communication with the second end of the hydraulic reversing valve (2); The hydraulic lock group comprises a first hydraulic lock (5) and a second hydraulic lock (6), the first hydraulic lock (5) being connected to a first output valve port of the hydraulic reversing valve (2), the second hydraulic lock (6) being connected to a second output valve port of the hydraulic reversing valve (2), the first upstream valve port of the first overflow valve (7) and the second oil inlet valve port of the solenoid valve (3) being connected to a first oil outlet valve port of the sequence valve (4) respectively; The valve group further comprises a second overflow valve (8), the valve plate (1) further comprises a fourth surface (104), the fourth surface (104) is arranged opposite to the second surface (102), the second overflow valve (8) is arranged on the fourth surface (104), the second overflow valve (8) is communicated with the first hydraulic lock (5), and the second overflow valve (8) is arranged close to the first hydraulic lock (5); The valve group further comprises a third overflow valve (9), wherein the third overflow valve (9) is arranged on the fourth surface (104), the third overflow valve (9) is connected to the second hydraulic lock (6) and the third overflow valve (9) is arranged close to the second hydraulic lock (6).

2. The valve assembly according to claim 1, wherein: The valve group further comprises a first pressure gauge (10), wherein the first pressure gauge (10) is arranged at the third surface (103), and the first pressure gauge (10) is arranged to be in communication with a first oil inlet valve port of the hydraulic reversing valve (2).

3. The valve assembly according to claim 2, wherein: The valve group further comprises a first pressure measuring passage and a first pressure gauge switch (14); a first end of the first pressure measuring passage is connected to the first oil inlet valve port; a second end of the first pressure measuring passage is connected to the first pressure gauge switch (14) and the first pressure gauge (10) in sequence.

4. The valve assembly according to claim 1, wherein: The valve group further comprises a second pressure gauge (11), wherein the second pressure gauge (11) is arranged on the third surface (103), and the second pressure gauge (11) is arranged to be in communication with a first oil return valve port of the hydraulic reversing valve (2).

5. The valve assembly according to claim 4, wherein: The valve group further comprises a second pressure measuring passage and a second pressure gauge switch (15), wherein a first end of the second pressure measuring passage is connected to the first oil return valve port, and a second end of the second pressure measuring passage is connected to the second pressure gauge switch (15) and the second pressure gauge (11) in sequence.

6. The valve assembly according to claim 1, wherein: The valve group also includes: a first positioning member (12), wherein the hydraulic reversing valve (2) is detachably connected to the valve plate (1) via the first positioning member (12); and A second positioning member (13), wherein the solenoid valve (3) is detachably connected to the valve plate (1) via the second positioning member (13).

7. The valve assembly according to claim 1, wherein: The sequence valve (4) is plugged into the second surface (102), the first overflow valve (7) is threadedly connected to the third surface (103), and the first hydraulic lock (5) and the second hydraulic lock (6) are threadedly connected to the first surface (101).

8. The valve assembly according to claim 1, wherein: The second overflow valve (8) and the third overflow valve (9) are threadedly connected to the fourth surface (104).

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