Valve body of double overflow valve

Abstract

The utility model relates to a valve body of a double overflow valve, which comprises a valve body shell and an oil outlet pipe, one end of the oil outlet pipe extends to the outer side of the valve body shell, and an oil way is arranged in the valve body shell. The oil way comprises a main pipeline arranged in the valve body shell, one end of the main pipeline extends to the outer side of the valve body shell and is connected with an oil pump, the other end of the main pipeline is connected with the oil outlet pipe, and a first overflow valve with one end extending to the outside of the valve body shell is fixedly installed on the main pipeline. The lubricating device has the advantages that the auxiliary pipeline and the electromagnetic reversing valve are arranged on the main pipeline, when the first overflow valve on the main pipeline is in a jamming state, reversing is conducted through the electromagnetic reversing valve, and lubricating oil flows to the auxiliary pipeline and passes through the second overflow valve on the auxiliary pipeline; at the moment, a worker can maintain the first overflow valve on the main pipeline, so that the worker can maintain the first overflow valve under the condition that normal operation of an oil way is not influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of lubricating oil systems, and specifically relates to a valve body of a double overflow valve. Background Technique

[0002] The overflow valve plays a role in controlling pressure in the lubricating oil system to ensure that the pressure of the lubricating oil is maintained within a suitable range. When the system pressure increases, the flow demand will decrease. At this time, the overflow valve will open, allowing the excess lubricating oil to flow back to the oil tank, thereby maintaining a constant pressure at the outlet of the lubricating oil pump.

[0003] Since installing a filtering device in the oil return system will increase the resistance when the lubricating oil passes through, resulting in pressure loss, which requires the staff to adjust other parts of the system to compensate for this loss. To reduce costs, a filtering device is usually not provided in the oil return system. However, due to the absence of a filtering device, there is no filtering protection means for the overflow valve at the outlet of the oil pump, and impurity particles can easily enter the overflow valve directly through the outlet of the oil pump, resulting in the jamming of the overflow valve, which requires the staff to repair the overflow valve. When the staff needs to repair the overflow valve, it is easy to cause the entire oil station or lubricating oil system to shut down, thereby reducing work efficiency. Content of the Utility Model

[0004] The purpose of the utility model is to provide a valve body of a double overflow valve to solve the above problems existing in the prior art.

[0005] The technical solution of the utility model to solve the above technical problems is as follows:

[0006] A valve body of a double overflow valve includes a valve body housing and an oil outlet pipe extending to the outside of the valve body housing at one end, and an oil passage is arranged inside the valve body housing;

[0007] The oil passage includes a main pipeline arranged inside the valve body housing. One end of the main pipeline extends to the outside of the valve body housing and is connected to an oil pump, and the other end of the main pipeline is connected to the oil outlet pipe. A first overflow valve extending to the outside of the valve body housing at one end is fixedly installed on the main pipeline. A one-way valve and a stop valve are fixedly installed on the main pipeline in sequence between the first overflow valve and the oil outlet pipe. An electromagnetic reversing valve is fixedly installed on the main pipeline between the first overflow valve and the oil pump. The other end of the electromagnetic reversing valve is fixedly installed with a secondary pipeline. The other end of the secondary pipeline is butted against the main pipeline and is located between the first overflow valve and the one-way valve, and a second overflow valve is fixedly installed on the secondary pipeline.

[0008] The beneficial effects of the present utility model are as follows: By providing a secondary pipeline and an electromagnetic reversing valve on the main pipeline, when the first overflow valve on the main pipeline gets stuck, the electromagnetic reversing valve is used for reversing, so that the lubricating oil flows into the secondary pipeline and passes through the second overflow valve on the secondary pipeline. At this time, the staff can repair the first overflow valve on the main pipeline, enabling the staff to perform repairs without affecting the normal operation of the oil circuit and avoiding the shutdown of the oil station for maintenance.

[0009] Based on the above technical solutions, the present utility model can be further improved as follows.

[0010] Further, two oil circuits are provided inside the valve body housing.

[0011] Further, return pipes are fixedly installed on both the first overflow valve and the second overflow valve, and the other ends of the return pipes are connected to the inside of the fuel tank.

[0012] Further, the other end of the oil outlet pipe is connected to an oil filter through a hose.

[0013] Further, a diversion pipe is fixedly installed on the oil outlet pipe, and a pressure gauge is fixedly installed at the other end of the diversion pipe.

[0014] Further, an instrument valve is fixedly installed on the diversion pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the internal structure of the valve body housing in the present utility model;

[0016] Figure 2 It is a lubricating oil system diagram of the internal part of the valve body housing in the present utility model.

[0017] In the drawings, the list of components represented by each reference numeral is as follows:

[0018] 1. Valve body housing; 2. Oil circuit; 21. Main pipeline; 22. Secondary pipeline; 23. First overflow valve; 24. Check valve; 25. Globe valve; 26. Electromagnetic reversing valve; 27. Second overflow valve; 3. Oil outlet pipe; 4. Diversion pipe; 5. Pressure gauge; 6. Instrument valve; 7. Return pipe. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The principles and features of the present utility model will be described below with reference to the accompanying drawings. The examples given are only for explaining the present utility model and are not intended to limit the scope of the present utility model.

[0020] As Figures 1 to 2 shown, Embodiment 1 of the present utility model is a valve body of a double overflow valve, which includes a valve body housing 1 and an oil outlet pipe 3 extending to the outside of the valve body housing 1 at one end. An oil circuit 2 is provided inside the valve body housing 1;

[0021] The oil circuit 2 includes a main pipeline 21 arranged inside the valve body shell 1, one end of the main pipeline 21 extends to the outside of the valve body shell 1 and is connected to the oil pump, the other end of the main pipeline 21 is connected to the oil outlet pipe 3, and a first overflow valve 23 with one end extending to the outside of the valve body shell 1 is fixedly installed on the main pipeline 21, a check valve 24 and a stop valve 25 are fixedly installed in sequence on the main pipeline 21 and between the first overflow valve 23 and the oil outlet pipe 3, an electromagnetic reversing valve 26 is fixedly installed on the main pipeline 21 and between the first overflow valve 23 and the oil pump, and a secondary pipeline 22 is fixedly installed on the other end of the electromagnetic reversing valve 26, the other end of the secondary pipeline 22 is connected to the main pipeline 21 and is located between the first overflow valve 23 and the check valve 24, and a second overflow valve 27 is fixedly installed on the secondary pipeline 22.

[0022] By arranging a secondary pipeline 22 and an electromagnetic reversing valve 26 on the main pipeline 21, when the first overflow valve 23 on the main pipeline 21 is stuck, the electromagnetic reversing valve 26 is used to switch the direction so that the lubricating oil flows to the secondary pipeline 22 and passes through the second overflow valve 27 on the secondary pipeline 22. At this time, the staff can repair the first overflow valve 23 on the main pipeline 21, so that the staff can carry out maintenance without affecting the normal operation of the oil circuit 2, thereby avoiding the oil station from shutting down for maintenance.

[0023] Embodiment 2 of the present invention is a valve body of a double overflow valve. Based on Embodiment 1, two oil circuits 2 are arranged inside a valve body housing 1 .

[0024] By setting up dual oil circuits 2, during peak hours or high load conditions, dual oil circuits 2 can be enabled to work simultaneously to increase system output; during low load or maintenance periods, one oil circuit 2 can be closed to save energy and reduce wear, thereby improving work efficiency; two oil circuits 2 are set up as one main and one backup. When the first overflow valve 23 and the second overflow valve 27 on the main oil circuit 2 fail at the same time, the system can immediately switch to the backup oil circuit 2 to continue to maintain normal working pressure and flow. This fault redundancy design effectively avoids system shutdown caused by failure of a single oil circuit 2, and ensures the continuity and stability of production.

[0025] Embodiment 3 of the utility model is a valve body of a double overflow valve. Based on embodiment 1 or 2, a return pipe 7 is fixedly installed on the first overflow valve 23 and the second overflow valve 27, and the other end of the return pipe 7 is connected to the inside of the oil tank.

[0026] By providing the return pipe 7, the excess flow in the first overflow valve 23 and the second overflow valve 27 can be transported back to the oil tank.

[0027] Embodiment 4 of the utility model is a valve body of a double overflow valve. Based on any one of embodiments 1 to 3, the other end of the oil outlet pipe 3 is connected to the oil filter through a hose.

[0028] Docking through a hose is relatively simple and fast, without the need for complex welding or threaded connection processes, reducing the installation difficulty and cost. When maintenance or replacement of the valve body housing 1 is required, simply disconnect the hose connection, without the need for large-scale disassembly and reorganization of the entire hydraulic system.

[0029] In Embodiment 5 of the present utility model, a valve body of a double relief valve is provided. On the basis of any one of Embodiments 1 to 4, a diversion pipe 4 is fixedly installed on the oil outlet pipe 3, and the other end of the diversion pipe 4 is fixedly installed with a pressure gauge 5.

[0030] The pressure gauge 5 can display the oil pressure in the oil outlet pipe 3 in real time and accurately. Through the reading of the pressure gauge 5, the operator can timely detect abnormal oil pressure, which helps to quickly locate the problem and take corresponding measures to prevent the expansion of the fault or the occurrence of a safety accident.

[0031] In Embodiment 6 of the present utility model, a valve body of a double relief valve is provided. On the basis of Embodiment 5, a meter valve 6 is fixedly installed on the diversion pipe 4.

[0032] The meter valve 6, as a pressure regulating device, can precisely control the oil pressure in the diversion pipe 4.

[0033] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A valve body of a double relief valve, characterized in that: It comprises a valve body shell (1) and an oil outlet pipe (3) with one end extending to the outside of the valve body shell (1); an oil circuit (2) is arranged inside the valve body shell (1); The oil circuit (2) comprises a main pipeline (21) arranged inside the valve body shell (1), one end of the main pipeline (21) extending to the outside of the valve body shell (1) and connected to the oil pump, the other end of the main pipeline (21) connected to the oil outlet pipe (3), a first overflow valve (23) having one end extending to the outside of the valve body shell (1) is fixedly installed on the main pipeline (21), and a first overflow valve (23) is located on the main pipeline (21) and between the first overflow valve (23) and the oil outlet pipe (3) according to the present invention. A check valve (24) and a stop valve (25) are fixedly installed on the main pipeline (21); an electromagnetic reversing valve (26) is fixedly installed on the main pipeline (21) and located between the first overflow valve (23) and the oil pump; a secondary pipeline (22) is fixedly installed on the other end of the electromagnetic reversing valve (26); the other end of the secondary pipeline (22) is connected to the main pipeline (21) and located between the first overflow valve (23) and the check valve (24); and a second overflow valve (27) is fixedly installed on the secondary pipeline (22).

2. The valve body of a double relief valve according to claim 1, characterized in that: Two oil passages (2) are arranged inside the valve body shell (1).

3. The valve body of a double relief valve according to claim 1, characterized in that: A return pipe (7) is fixedly mounted on both the first overflow valve (23) and the second overflow valve (27), and the other end of the return pipe (7) is connected to the interior of the oil tank.

4. The valve body of a double relief valve according to claim 1, characterized in that: The other end of the oil outlet pipe (3) is connected to the oil filter via a hose.

5. The valve body of a double relief valve according to claim 1, characterized in that: A flow guide pipe (4) is fixedly mounted on the oil outlet pipe (3), and a pressure gauge (5) is fixedly mounted on the other end of the flow guide pipe (4).

6. The valve body of a double relief valve according to claim 5, characterized in that: An instrument valve (6) is fixedly mounted on the flow guide pipe (4).

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