Transverse movement linkage tension valve group for cutter suction dredger

Abstract

The utility model discloses a traversing linkage tension valve group for a cutter suction dredger, which comprises a valve group a and a valve group b, one end of the valve group a and one end of the valve group b are communicated with an oil outlet pipe and an oil return pipe on an oil tank through pipelines, the other end of the valve group a and the other end of the valve group b are communicated with a left traversing winch and a right traversing winch through pipelines, and the valve group b is positioned between the two valve groups a. An electromagnetic overflow valve is communicated between the oil outlet pipe and the oil return pipe through a pipeline, a pipeline g is further arranged on the oil tank, a proportional overflow valve is arranged on the pipeline g, and the other end of the pipeline g is communicated with the valve set a. The hydraulic system has the advantages that the valve group a and the valve group b are arranged between the oil tank and the left and right transverse moving winches, single action and double action of the left and right transverse moving winches are achieved, flexibility is improved, meanwhile, tension is formed through the proportional overflow valve, and compared with a traditional transverse moving winch hydraulic system, the hydraulic system is smaller in space and more stable on the basis of the tension. When the winch transversely moves, the situation that the winch unreels a rope suddenly and rapidly is effectively reduced, and safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic valve groups, in particular to a transverse movement linkage tension valve group for a cutter suction dredger. Background Art

[0002] As a power system, the hydraulic system plays an important role during the operation of a cutter suction dredger. Most current cutter suction dredgers adopt a centralized hydraulic system, that is, the total hydraulic unit centrally provides hydraulic power to the hydraulic drive devices throughout the ship. This will result in a large number of hydraulic pipeline systems. The large hydraulic pipeline system not only increases the energy consumption of the liquid in the pipeline, reduces the hydraulic drive efficiency, but also increases the construction and maintenance costs of the ship. Moreover, the entire hydraulic system adopts centralized control, which increases the difficulty and time for troubleshooting in case of a failure and raises the maintenance cost. Content of the Utility Model

[0003] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a transverse movement linkage tension valve group for a cutter suction dredger.

[0004] The purpose of the utility model is realized through the following technical solutions: A transverse movement linkage tension valve group for a cutter suction dredger includes valve group a and valve group b. One ends of valve group a and valve group b are connected to the oil outlet pipe and the oil return pipe on the oil tank through pipelines. The other ends of valve group a and valve group b are connected to the left transverse movement winch and the right transverse movement winch through pipelines, and valve group b is located between the two valve groups a. An electromagnetic overflow valve is connected between the oil outlet pipe and the oil return pipe through a pipeline. A pipeline g is also provided on the oil tank, and a proportional overflow valve is provided on the pipeline g. The other end of the pipeline g is connected to valve group a.

[0005] Preferably, valve group a includes a two-way plug a, an overflow valve, and a two-way directional valve. One end of the two-way plug a is connected to the oil outlet pipe through pipeline a. The other end of the two-way plug a is connected to one end of the two-way directional valve through pipeline b, and a damper is provided inside the two-way plug a. The other end of the two-way directional valve is connected to the oil return pipe through pipeline c. Both ends of the overflow valve are connected to pipeline b and pipeline c respectively. One end of the pipeline g is connected to the two-way directional valve.

[0006] Preferably, valve group b includes a two-way plug b11 and a two-way directional valve. One end of the two-way plug b is connected to the oil outlet pipe through pipeline d. The other end of the two-way plug b is connected to one end of the two-way directional valve through pipeline e. The other end of the two-way directional valve is connected to the oil return pipe through pipeline f.

[0007] Preferably, there are four valve groups a and two valve groups b.

[0008] Preferably, a ball valve a, a shock absorber hose, and a gear pump are sequentially arranged on the oil outlet pipe. The ball valve a is close to the oil inlet of the oil outlet pipe. The gear pump is connected to a coupling, and the coupling is connected to the power output end of the motor.

[0009] Preferably, an oil return filter is arranged on the oil return pipe.

[0010] Preferably, a liquid level thermometer is arranged in the fuel tank. The liquid level thermometer is used to detect the liquid level and temperature of the fuel tank. An air filter is also arranged on the fuel tank.

[0011] Preferably, a ball valve b is arranged on the fuel tank.

[0012] The utility model has the following advantages: By arranging valve group a and valve group b between the fuel tank and the left and right transverse winches, the single-acting and double-acting of the left and right transverse winches are realized, the flexibility is improved. At the same time, a tension is formed through the proportional overflow valve. Compared with the traditional hydraulic system of the transverse winch, its space is smaller. And based on the tension, when the winch works and moves horizontally, the situation that the winch suddenly releases the rope quickly is effectively reduced, and the safety is increased. Description of the Drawings

[0013] Figure 1 It is a schematic structural diagram of the internal pipeline of the transverse movement linkage tension valve group;

[0014] Figure 2 It is a schematic structural diagram of the internal pipelines of valve group a and valve group b;

[0015] Figure 3 It is a schematic structural diagram of the pipeline part of the fuel tank;

[0016] Figure 4 It is a schematic structural diagram of the positional relationship between the left transverse winch and the right transverse winch on the dredger;

[0017] Figure 5 It is a schematic structural diagram of the start-stop conditions of valve group a and valve group b corresponding to the left and right transverse winches under different working conditions;

[0018] In the figure, 1 - fuel tank, 2 - liquid level thermometer, 3 - air filter, 4 - ball valve a, 5 - shock absorber hose, 6 - motor, 7 - coupling, 8 - gear pump, 9 - electromagnetic overflow valve, 10 - two-way plug a, 11 - two-way plug b, 12 - overflow valve, 13 - two-way reversing valve, 14 - proportional overflow valve, 15 - right transverse winch, 16 - left transverse winch, 17 - return filter, 19 - valve group a, 20 - ball valve b, 21 - valve group b. Detailed Embodiments

[0019] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some but not all of the embodiments of the present utility model. The components of the embodiments of the present utility model usually described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the claimed present utility model, but merely represents selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0021] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other.

[0022] It should be noted that like reference numerals and letters denote like items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0023] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, or the orientation or positional relationship commonly understood by those skilled in the art. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive distinction and should not be construed as indicating or implying relative importance.

[0024] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, the terms "set", "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0025] In this embodiment, as Figure 1 andFigure 4 As shown in the figure, a transverse movement linkage tension valve group for a cutter suction dredger includes valve group a19 and valve group b21. One ends of valve group a19 and valve group b21 are connected to the oil outlet pipe and the oil return pipe on the oil tank 1 through pipelines, and the other ends of valve group a19 and valve group b21 are connected to the left transverse movement winch 16 and the right transverse movement winch 15 through pipelines. And valve group b21 is located between two valve groups a19. An electromagnetic overflow valve 9 is connected between the oil outlet pipe and the oil return pipe through a pipeline. A pipeline g is also arranged on the oil tank 1, and a proportional overflow valve 14 is arranged on the pipeline g. The other end of the pipeline g is connected to valve group a19. By arranging valve group a19 and valve group b21 between the oil tank 1 and the left and right transverse movement winches, the single-action and double-action of the left and right transverse movement winches are realized, the flexibility is improved. At the same time, tension is formed by the proportional overflow valve 14. Compared with the traditional hydraulic system of the transverse movement winch, its space is smaller. And based on the tension, when the winch works and moves horizontally, the situation that the winch suddenly releases the rope quickly is effectively reduced, and the safety is increased.

[0026] In this embodiment, there are four valve groups a19 and two valve groups b21. Specifically, the distribution of valve group a19 and valve group b21 is valve group a19, valve group b21, valve group a19, valve group a19, valve group b21 and valve group a19. Here, in order to facilitate the description of the switching conditions of different valve groups corresponding to working conditions, as Figure 2 shown, from left to right, valve group a19, valve group b21, valve group a19, valve group a19, valve group b21 and valve group a19 are defined as S1, S2, S3, S4, S5 and S6 respectively, and at the same time, the electromagnetic overflow valve 9 is defined as S7. Further, valve group a19 includes a two-way plug-in a10, an overflow valve 12 and a two-way reversing valve 13. One end of the two-way plug-in a10 is connected to the oil outlet pipe through pipeline a, and the other end of the two-way plug-in a10 is connected to one end of the two-way reversing valve 13 through pipeline b. And there is a damper in the two-way plug-in a10. That is to say, the two-way plug-in a10 is a two-way plug-in with a damper. When the middle oil circuit is opened and the oil pressure below is high or the subsequent oil circuit is connected to the T port, it can be pushed. The other end of the two-way reversing valve 13 is connected to the oil return pipe through pipeline c. The two ends of the overflow valve 12 are respectively connected to pipeline b and pipeline c. Here, the main function of the overflow valve 12 is to open the overflow valve 12 when the set oil pressure is exceeded, so that the oil overflows. One end of the pipeline g is connected to the two-way reversing valve 13. Still further, valve group b21 includes a two-way plug-in b11 and a two-way reversing valve 13. One end of the two-way plug-in b11 is connected to the oil outlet pipe through pipeline d, and the other end of the two-way plug-in b11 is connected to one end of the two-way reversing valve 13 through pipeline e. Preferably, the two-way plug-in b11 is a two-way plug-in without a damper. When the oil pressure below is higher than the oil pressure above, it will be lifted. The other end of the two-way reversing valve 13 is connected to the oil return pipe through pipeline f. Specifically, as Figure 5As shown, for the purpose of facilitating the description of the switching conditions of different valve groups under corresponding working conditions, the two-way plugs a10 or b11 in S1, S2, S3, S4, S5, and S6 are now positioned as V1, V2, V3, V4, V5, and V6, and the ports on the two-way reversing valve 13 are defined as P port, T port, A port, and B port respectively. Now, the control of the left traverse winch 16 will be described: When S7, S2, and S3 are energized, the oil in the oil tank 1 enters V2 through the oil outlet pipe. Since S2 moves, the upper part of V2 is connected to the T port, with low pressure, causing V2 to be lifted. Since S1 is not energized, the upper part of V1 is blocked and cannot be lifted. Therefore, the oil enters the A port and exits from the B port. Since S3 is energized and moves, the upper part of V3 is blocked and cannot be lifted, and the oil lifts V4 and returns to the oil tank 1 through the return pipe. During this period, S5 and S6 do not act, that is, V5 is held down by the oil flowing through the internal shuttle valve above it, and the oil path of V6 is blocked and all are blocked. Therefore, only the circuit of the left traverse winch 16 is completed, and at this time, the dredger moves to the left; When S7, S1, S4, and the proportional relief valve 14 (corresponding to Figure 5e) When powered on, the oil in the fuel tank 1 enters V2 through the outlet pipe. Due to the shuttle valve in V2, the upper and lower hydraulic pressures are the same, so V2 will not be lifted. Therefore, the oil path between port P and the left side of V2 is blocked, and the oil enters V3. Since S3 is not powered on, the pressure at port T on V3 is low, causing V3 to be lifted. Since S4 is powered on, when the pressure difference causes the oil to exceed the set pressure, a part of the oil will leak, but most of the oil will enter port B and then exit from port A. S1 is powered on, and the upper part of V1 is connected to the proportional relief valve 14. The proportional relief valve 14 also conducts current and flows into the return pipe, creating a pressure difference, causing V1 to be lifted, and the oil returns to the fuel tank. However, the proportional relief valve 14 can be adjusted. By adjusting the size of the proportional relief valve 14, the leakage rate of the upper part of V1 is changed to control the lifting size of V1, thereby controlling the pressure difference, and further realizing the speed control when paying out the cable. Next, the control of the right traverse winch 15 will be described: When S7, S3, and S5 are powered on, the hydraulic pressures on both sides of V2 are the same, and it is blocked due to the closing of the spring pressure. The oil enters through V3. However, since S4 is not open, the oil lifts V4. Since S5 is open, the pressure above V5 is connected to port T and is low, so V5 is lifted, and the oil enters through V5. Since V6 is not powered on above and is blocked, the oil is connected to port A of the right traverse winch 15 and then exits from port B and leaks through V4, completing the cycle. At this time, the right traverse winch 15 drives the dredger to move to the right; When S7, S4, S6, and the proportional relief valve 14 are powered on, V2 is blocked, and the oil enters through V3. Since S4 is powered on, the upper part of V4 is blocked, and the oil enters port B. Since S6 is powered on, S6 is lifted and connected to the leakage port. Similar to the left traverse winch 16, the speed control of the winch when paying out the cable is completed by adjusting the proportional relief valve 14, and this will not be elaborated here. Finally, the control of the simultaneous operation of the right traverse winch 15 and the left traverse winch 16 will be described: When it is necessary for the left traverse winch 16 to take in the cable and the right traverse winch 15 to pay out the cable, open S2, S3, S6, S7, and the proportional relief valve 14. According to the above description, when S2 and S3 are open, the oil enters port A of the left traverse winch 16 from V2 and exits from port B. Since S4 is not open, it can leak, but it is necessary to lift V4. S6 is open but it has to pass through the winch. The oil is divided into two paths. One part returns to the fuel tank 1 through V4, and the other part returns to the fuel tank 1 through the right traverse winch 15, thereby realizing the rope taking in of the left traverse winch 16 and the rope paying out of the right traverse winch 15. By controlling the proportional relief valve 14, the flow rate through the right traverse winch 15 is controlled, thereby controlling the force at the rope paying out end and preventing it from being suddenly pulled over quickly, realizing the tension effect; When it is necessary for the left traverse winch 16 to pay out the cable and the right traverse winch 15 to take in the cable, open S1, S3, S5, S7, and the proportional relief valve 14. It is the same as when the left traverse winch 16 takes in the cable and the right traverse winch 15 pays out the cable. At this time, one part of the oil returns to the fuel tank 1 through V4, and the other part passes through the left traverse winch 16 and then returns to the fuel tank 1, thereby realizing the cable payout of the left traverse winch 16 and the rope taking in of the right traverse winch 15, and this will not be elaborated here.In this embodiment, the overflow valve 12, two-way changeover valve 13, two-way plug a10, two-way plug b11, and proportional overflow valve 14 are all existing products, and no improvements have been made to them here, so they will not be elaborated further.

[0027] In this embodiment, as Figure 3 shown, a ball valve a4, a shock absorber hose 5, and a gear pump 8 are sequentially arranged on the oil outlet pipe, and the ball valve a4 is close to the oil inlet of the oil outlet pipe. The gear pump 8 is connected to the coupling 7, and the coupling 7 is connected to the power output end of the motor 6. Specifically, the main function of the ball valve a4 is to control the opening and closing of the oil circuit. The shock absorber hose 5 is to reduce the influence of motor vibration. The motor 6 drives the gear pump 8 to rotate, thereby pumping the oil in the fuel tank 1 into the pipeline. Further, an oil return filter 17 is arranged on the oil return pipe, and the main function of the oil return filter 17 is to ensure the cleanliness of the oil. Still further, a liquid level thermometer 2 is arranged in the fuel tank 1, and the liquid level thermometer 2 is used to detect the liquid level and temperature of the fuel tank 1. An air filter 3 is also arranged on the fuel tank 1. Specifically, the main function of the air filter 3 is to reduce the entry of dust and the like into the fuel tank 1. In this embodiment, a ball valve b20 is arranged on the fuel tank 1. Specifically, when the liquid level of the oil in the fuel tank 1 is too high, the ball valve b20 is opened for oil drainage.

[0028] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A transverse movement linkage tension valve group for a cutter suction dredger, characterized in that: It includes valve group a (19) and valve group b (21). One end of the valve group a (19) and the valve group b (21) is communicated with the oil outlet pipe and the oil return pipe on the oil tank (1) through pipelines. The other end of the valve group a (19) and the valve group b (21) is communicated with the left transverse winch (16) and the right transverse winch (15) through pipelines. And the valve group b (21) is located between the two valve groups a (19). An electromagnetic overflow valve (9) is communicated between the oil outlet pipe and the oil return pipe through a pipeline. A pipeline g is also arranged on the oil tank (1), and a proportional overflow valve (14) is arranged on the pipeline g. The other end of the pipeline g is communicated with the valve group a (19).

2. The traverse linkage tension valve group for a cutter suction dredger according to claim 1, wherein: The valve group a (19) includes a two-way plug a (10), an overflow valve (12) and a two-way reversing valve (13). One end of the two-way plug a (10) is communicated with the oil outlet pipe through pipeline a. The other end of the two-way plug a (10) is communicated with one end of the two-way reversing valve (13) through pipeline b. And a damper is provided in the two-way plug a (10). The other end of the two-way reversing valve (13) is communicated with the oil return pipe through pipeline c. Both ends of the overflow valve (12) are communicated with pipeline b and pipeline c respectively. One end of the pipeline g is communicated with the two-way reversing valve (13).

3. The traverse linkage tension valve set for a cutter suction dredger according to claim 2, characterized in that: The valve group b (21) includes a two-way plug b (11) and the two-way reversing valve (13). One end of the two-way plug b (11) is communicated with the oil outlet pipe through pipeline d. The other end of the two-way plug b (11) is communicated with one end of the two-way reversing valve (13) through pipeline e. The other end of the two-way reversing valve (13) is communicated with the oil return pipe through pipeline f.

4. The transverse movement linkage tension valve group for a trailing suction hopper dredger according to claim 3, characterized in that: There are four valve groups a (19) and two valve groups b (21).

5. The traverse linkage tension valve group for a trailing suction hopper dredger according to claim 4, characterized in that: A ball valve a (4), a shock absorber hose (5) and a gear pump (8) are sequentially arranged on the oil outlet pipe. And the ball valve a (4) is close to the oil inlet of the oil outlet pipe. The gear pump (8) is connected with a coupling (7), and the coupling (7) is connected with the power output end of the motor (6).

6. The transverse movement linkage tension valve group for a cutter suction dredger according to claim 5, characterized in that: An oil return filter (17) is arranged on the oil return pipe.

7. The transverse movement linkage tension valve group for a trailing suction hopper dredger according to claim 6, characterized in that: A liquid level thermometer (2) is arranged in the oil tank (1). The liquid level thermometer (2) is used to detect the liquid level and temperature of the oil tank (1). An air filter (3) is also arranged on the oil tank (1).

8. The traverse linkage tension valve group for a trailing suction hopper dredger according to claim 7, characterized in that: A ball valve b (20) is arranged on the oil tank (1).

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