Compact hydraulic manifold block control system

Abstract

The utility model relates to a compact type hydraulic integrated block control system which comprises an integrated block body, a first main oil supply port, a second main oil supply port, a first main oil return port and a second main oil return port, wherein the first main oil supply port and the second main oil supply port are formed in the left side end face and the right side end face of the integrated block body oppositely; the first main oil supply port and the second main oil supply port form a non-connected independent control oil way in the integrated block body, and a plurality of working oil ports and working oil return ports which are communicated with the first main oil supply port, the second main oil supply port, the first main oil return port and the second main oil return port are formed in the upper end of the integrated block body. The working oil port and the working oil return port are respectively connected with the electromagnetic reversing valve, and oil pressure loss caused by the fact that the integrated block body is too long can be avoided by supplying oil at the two ends.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of hydraulic mechanical components, in particular to the technical field of a compact hydraulic manifold control system. BACKGROUND

[0002] Conventionally, complex hydraulic systems are often composed of multiple independent hydraulic manifolds, each responsible for a specific functional module such as directional control, flow control, or pressure regulation. However, in many application scenarios, especially in space-limited and high-reliability environments, using multiple hydraulic manifolds not only increases the complexity and maintenance difficulty of the system, but also may lead to installation inconvenience, complex pipe connections, and increased risk of leakage.

[0003] For example, in some compact devices or mobile machinery, especially those that need to perform complex work, multiple directional control valves are used for control. However, the control precision and purpose of the directional control valves are different, and existing hydraulic manifolds are difficult to implement multiple different control functions on the same block.

[0004] In view of this, there is a need for an integrated hydraulic control system to improve installation space and meet the needs of various compact application scenarios. SUMMARY

[0005] To solve the above problems, the present application proposes a compact hydraulic manifold control system, which aims to at least improve at least one of the above problems through highly integrated design.

[0006] To achieve the above purpose, the following technical solutions are adopted in the present application:

[0007] A compact hydraulic manifold control system, comprising a manifold block, a first main oil supply port and a second main oil supply port arranged on the left and right end faces of the manifold block and facing each other, and a first main oil return port and a second main oil return port corresponding thereto, the first main oil supply port and the second main oil supply port forming non-connected independent control oil circuits inside the manifold block;

[0008] A plurality of working oil ports and working oil return ports are provided on the upper end of the manifold block and communicate with the first main oil supply port and the second main oil supply port, the first main oil return port and the second main oil return port;

[0009] The working oil ports and working oil return ports are respectively connected to electromagnetic directional control valves.

[0010] Thus, the application sets up oil paths controlled independently at left and right ends of the integrated block, and the oil pressure loss caused by the overlong integrated block can be avoided by supplying oil at both ends. Meanwhile, the types of electromagnetic reversing valves corresponding to the left and right main oil supply ports can be adjusted as a whole according to the control type of the electromagnetic reversing valves. Moreover, the electromagnetic reversing valves are uniformly arranged at the upper end of the integrated block, which is more convenient for maintenance and adjustment.

[0011] In some possible embodiments, the end surface of the first main oil supply port or the second main oil supply port is provided with a third main oil supply port forming a non-connected independent control oil path inside the integrated block. Thus, when the oil supply distance is long, or the types of electromagnetic reversing valves are different, or the number of electromagnetic reversing valves is large, the main oil return port can be universal, and the main oil supply port can be added to realize multiple controls.

[0012] In some possible embodiments, a pilot control oil path in communication with the electromagnetic reversing valve is further included, comprising a pilot control main oil port and a pilot control working oil port arranged on the integrated block.

[0013] In some possible embodiments, the pilot control main oil port is arranged on the side surface of the integrated block, and the pilot control working oil port is arranged on the upper end of the integrated block.

[0014] In some possible embodiments, the electromagnetic reversing valve is connected to the integrated block through a hydraulic control check valve.

[0015] In some possible embodiments, the electromagnetic reversing valve is connected to the hydraulic control check valve through a check throttle valve.

[0016] In some possible embodiments, a two-way flow control valve connected to the electromagnetic reversing valve is further included, and the two-way flow control valve is arranged on the side surface of the integrated block.

[0017] In some possible embodiments, the control inlet of the two-way flow control valve is arranged on the upper end of the integrated block, and the control outlet is arranged on the side surface or the bottom end of the integrated block.

[0018] In some possible embodiments, a back pressure valve arranged between the electromagnetic reversing valve and the first main oil return port and / or the second main oil return port is further included. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is the overall schematic diagram of the integrated block of the application;

[0020] Figure 2 is the sectional view of the integrated block of the application;

[0021] Figure 3 is the top view of the compact hydraulic integrated block control system of the application;

[0022] Figure 4 is a schematic view of the main oil supply end of the compact hydraulic manifold control system of the present application;

[0023] Figure 5 is a schematic view of the side oil port of the compact hydraulic manifold control system of the present application;

[0024] Figure 6 is a schematic view of the compact hydraulic manifold control system of the present application after installation on the side. DETAILED DESCRIPTION

[0025] The features of the present application and other related features are further described in detail below by way of examples, so as to make them more easily understood by those skilled in the art:

[0026] It should be noted that the terms "front", "back", "left", "right", "top" and "bottom" used in the following description refer to the directions in the drawings, and the terms "bottom surface" and "top surface", "inner" and "outer" refer to the directions towards or away from the geometric center of a particular component.

[0027] Further, unless otherwise clearly specified and limited, the terms "mounting", "connecting", "connection" should be interpreted broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present case can be understood according to the specific circumstances.

[0028] When the hydraulic manifold is connected to multiple control elements at the same time, such as commonly used electromagnetic directional control valves, firstly, there will be the consequence of mutual influence when several electromagnetic valves work at the same time. At the same time, because the working parts served by each control valve are different, their sensitivity and other aspects are different. For this reason, each control valve is provided with a hydraulic manifold, which has room for improvement in space and maintenance convenience, etc.

[0029] For this reason, please refer to Figures 1 to 3 The compact hydraulic manifold control system of the present application includes a manifold body 100, in order to facilitate the installation of different control valves, it has a long strip extension structure in the left-right direction, and the control valve is an electromagnetic directional control valve. The long strip extension will easily cause oil pressure loss. For this reason, the manifold body 100 of the present application is provided with a first main oil supply port 11 and a second main oil supply port 12 on the left and right side surfaces, and at the same time, a first main oil return port 21 and a second main oil return port 22 are provided correspondingly.

[0030] At this time, the first main oil supply port 11 and the second main oil supply port 12 form independent control oil paths that are not connected inside the manifold body 100. That is, the first main oil supply port 11 is mainly responsible for the left side, and the second main oil supply port 12 is mainly responsible for the right side.

[0031] Further, a plurality of working oil ports 31 and working return oil ports 32 are provided at the upper end of the integrated block 100 and communicate with the first and second main oil supply ports 11 and 12 and the first and second main return oil ports 21 and 22. Thus, a hydraulic integrated block with independent circuits at the left and right ends is formed. The compact hydraulic integrated block control system of the present application is provided with electromagnetic directional valves 200 connected to the working oil ports 31 and working return oil ports 32 at the upper end of the integrated block 100.

[0032] Thus, the type of electromagnetic directional valve 200 corresponding to the left and right main oil supply ports can be adjusted as a whole according to the control type of the electromagnetic directional valve 200. For example, four electromagnetic directional valves 200 can be installed on the left side and three electromagnetic directional valves 200 can be installed on the right side, and the configuration can be adjusted according to the frequency of simultaneous operation, such as avoiding simultaneous operation of the four electromagnetic directional valves 200 on the left side. Moreover, the electromagnetic directional valves 200 are uniformly arranged at the upper end of the integrated block 100, which is more convenient for maintenance and adjustment.

[0033] Please refer to Figure 2 As mentioned above, when there are too many electromagnetic directional valves 200 at one end, there is a risk of mutual interference. To this end, a third main oil supply port 13 is arranged on the end face of the first or second main oil supply port 11 or 12 to form a non-connected independent control oil circuit inside the integrated block 100. In this embodiment, the third main oil supply port 13 is arranged at the upper end of the first main oil supply port 11, and the main return oil port can be universal, and the additional main oil supply port can realize various controls.

[0034] In addition to the adjustment of the main oil circuit of the integrated block 100 itself, the precision and stability can also be adjusted by matching other auxiliary devices with the electromagnetic directional valves 200 to adapt to different needs. To this end, the oil circuit can be pre-set inside the integrated block 100.

[0035] Please refer to Figure 1 and Figure 4 The electromagnetic directional valve 200 can also be matched with a pilot control oil circuit. In the scenario where an independent oil circuit is needed to provide a control signal, a pilot control main oil port 41 and a pilot control working oil port 42 can be arranged on the integrated block 100. At this time, the pilot control main oil port 41 is arranged on the side of the integrated block 100, and the pilot control working oil port 42 is arranged at the upper end of the integrated block 100. Since the main working surface is the upper end, all the electromagnetic directional valves 200 are arranged at the upper end, and the pilot control working oil port 42 is directly arranged at the upper end of the integrated block 100 and the pilot control main oil port 41 is arranged on the spare side, without the need for external connection, and the pilot control oil circuit is realized directly inside the integrated block 100.

[0036] Please refer toFigure 3 And Figure 4 In other embodiments, the electromagnetic reversing valve 200 can also be connected to the integrated block 100 through a hydraulic control check valve 210 for higher control accuracy. Further, a one-way throttle valve 220 is provided between the electromagnetic reversing valve 200 and the hydraulic control check valve 210. That is, the electromagnetic reversing valve 200 is provided at the upper end, that is, it can have an improved working space and be stacked with other accessories for use.

[0037] Please refer to Figure 5 And Figure 6 In some embodiments, a two-way flow control valve 230 can also be provided, which is provided on the side of the integrated block 100. For example, it can be provided on the other side opposite to the pilot control main oil port 41 as described above.

[0038] Specifically, the control oil inlet 51 of the two-way flow control valve 230 is provided at the upper end of the integrated block 100, and the control oil outlet 52 is provided at the side or bottom end of the integrated block 100. The oil passage is led to the side inside the integrated block 100, and the two-way flow control valve 230 is installed on the side. Figure 5 is a schematic diagram of the uninstalled state, Figure 6 is a schematic diagram after installation, and the specific internal pipeline arrangement will not be repeated.

[0039] Further, please refer to Figure 5 And Figure 6 In some possible embodiments, a back pressure valve 240 is further provided between the electromagnetic reversing valve 200 and the first main oil return port 21 or the electromagnetic reversing valve 200 and the second main oil return port 22. As Figure 5 The back pressure oil port 61 can be provided on the side, and the back pressure valve 240 is installed on the side, which does not occupy space and can be installed, and the back pressure valve 240 can be provided with multiple according to the needs.

[0040] As described above, the present application protects a compact hydraulic integrated block control system, and all technical solutions the same as or similar to the present case should be shown to fall within the protection scope of the present case.

Claims

1. A compact hydraulic integrated block control system, characterized in that, The integrated block (100) includes a first main oil supply port (11) and a second main oil supply port (12) disposed on the left and right end faces of the integrated block (100) and facing each other, and a first main oil return port (21) and a second main oil return port (22) corresponding to them. The first main oil supply port (11) and the second main oil supply port (12) form a non-connected independent control oil circuit inside the integrated block (100). The upper end of the integrated block (100) is provided with a plurality of working oil ports (31) and working oil ports (32) that communicate with the first main oil supply port (11), the second main oil supply port (12), the first main oil return port (21), and the second main oil return port (22); The working oil port (31) and the working return oil port (32) are respectively connected to the solenoid directional valve (200).

2. The compact hydraulic integrated block control system as described in claim 1, characterized in that, The end face of the first main oil supply port (11) or the second main oil supply port (12) is provided with a third main oil supply port (13) that forms an independent control oil circuit that is not connected inside the integrated block (100).

3. A compact hydraulic integrated block control system as described in claim 1, characterized in that, It also includes a pilot control oil circuit connected to the solenoid directional valve (200), including a pilot control main oil port (41) and a pilot control working oil port (42) disposed in the integrated block (100).

4. A compact hydraulic integrated block control system as described in claim 3, characterized in that, The pilot control main oil port (41) is located on the side of the integrated block (100), and the pilot control working oil port (42) is located at the upper end of the integrated block (100).

5. A compact hydraulic integrated block control system as described in claim 3, characterized in that, The electromagnetic reversing valve (200) is connected to the integrated block (100) via a hydraulic check valve 9210.

6. A compact hydraulic integrated block control system as described in claim 5, characterized in that, The electromagnetic directional valve (200) is connected to the hydraulically controlled check valve (210) via a one-way throttle valve (220).

7. A compact hydraulic integrated block control system as described in claim 1, characterized in that, It also includes a two-way flow control valve (230) connected to the electromagnetic reversing valve (200), the two-way flow control valve (230) being disposed on the side of the integrated block (100).

8. A compact hydraulic integrated block control system as described in claim 7, characterized in that, The control inlet (51) of the two-way flow control valve (230) is located at the upper end of the integrated block (100), and its control outlet (52) is located on the side or bottom of the integrated block (100).

9. A compact hydraulic integrated block control system as described in claim 1, characterized in that, It also includes a back pressure valve (240) disposed between the solenoid directional valve (200) and the first main return port (21) and / or the second main return port (22).

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