Integrated manifold block of main engine

Abstract

A host integrated manifold block comprises a rectangular block, a plurality of channels which are not communicated with one another are formed in the rectangular block, threaded faces are arranged at the two ends of each channel, quick connectors are arranged at the two ends of each channel, and each quick connector comprises a connector body and an inner sleeve. A first threaded surface and a second threaded surface are arranged on the outer wall of the end, close to the rectangular block, of the connector body and the inner wall of the end, close to the connector body, of the rectangular block correspondingly, the inner sleeve is arranged in the connector body in a threaded connection mode, and a containing groove is formed in the end, close to the rectangular block, of the inner sleeve; the end face, close to the rectangular block, of the inner sleeve is attached to the inner wall of a channel formed in the rectangular block. The inner sleeve is in threaded connection with the connector body, and the connector body is in threaded connection with the through hole of the rectangular block, so that the inner sleeve is more difficult to displace when being impacted by high-pressure oil, the stability of a bottom sealing ring is ensured, and the sealing performance is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of oil circuit blocks, and particularly relates to a host integrated oil circuit block. Background Technique

[0002] The combination of oil circuit blocks is an integration of oil circuit blocks, and realizes hydraulic control by installing hydraulic components with different functions on the oil circuit block matrix. In the prior art, the combination of oil circuit blocks can be divided into a tower-shaped split oil circuit block combination and a dispersed layout integrated oil circuit block combination according to different structures. Generally, an axial sealing method with O-ring or rectangular-ring end face sealing is adopted between each oil circuit block. During the process of ultra-high pressure oil supply, oil leakage is likely to occur between the connection surfaces of the oil circuit blocks in the axial sealing method. Therefore, there is an urgent need for a joint that can still seal the connection surface during the ultra-high pressure oil supply process. Content of the Utility Model

[0003] The purpose of the utility model is to provide a host integrated oil circuit block to solve the problems existing in the above-mentioned prior art.

[0004] The above technical purpose of the utility model is achieved through the following technical solutions:

[0005] A host integrated oil circuit block includes a rectangular block. A plurality of non-communicating channels are arranged inside the rectangular block. Both ends of each channel are communicated with the outside of the rectangular block. An anti-crystallization coating is arranged inside each channel. Threaded surfaces are arranged at both ends of each channel. Quick connectors are arranged at both ends of each channel. The quick connector includes a connector body and an inner sleeve. A first threaded surface and a second threaded surface are respectively arranged on the outer wall of one end of the connector close to the rectangular block and the inner wall of one end of the rectangular block close to the connector. The connector is screwed inside the inner sleeve. A receiving groove is arranged at one end of the inner sleeve close to the rectangular block. A sealing ring is arranged inside the receiving groove, and the end face of the inner sleeve close to the rectangular block fits with the inner wall of the channel opened inside the rectangular block.

[0006] By adopting the above technical solutions, the anti-cleaning coating can prevent the solidified matter of the oil fluid from cleaning and solidifying on the channel wall to block the normal operation of the channel. The connector body and the inner sleeve that make up the quick connector are in a screwed relationship. The inner sleeve is threadedly connected to the bottom end of the connector body. The inner sleeve can make the ultra-high pressure oil fluid flow more smoothly through the connector body during the flowing process. The connector body is also threadedly connected inside the through hole. The two threaded connections successfully achieve the effect of fixing the connector body and the internal thread in the current position, and can remain stable even in the face of ultra-high pressure hydraulic oil. The sealing ring at the bottom of the inner sleeve can prevent the high-pressure oil fluid from penetrating into the gap between the inner sleeve and the connector, effectively improving the sealing performance.

[0007] In a further embodiment, stepped cylindrical surfaces are provided at both ends of the channel, and the diameter of the end of the stepped cylindrical surface facing the outside of the rectangular block is greater than the diameter of the channel. One end of the inner sleeve close to the stepped surface of the stepped cylinder fits with the stepped surface.

[0008] By adopting the above technical solution, the stepped cylindrical surface plays an auxiliary positioning and convenient installation effect for installing the quick connector.

[0009] In a further embodiment, the end face of the inner sleeve away from the rectangular block is provided as an inclined surface.

[0010] By adopting the above technical solution, the inclined surface can guide the flow direction of the high-pressure hydraulic oil.

[0011] In a further embodiment, the inclined surface gradually increases in diameter from the end close to the rectangular block to the end away from the rectangular block along the axial direction, and the diameter of the end of the inclined surface away from the rectangular block is consistent with the inner diameter of the joint body.

[0012] By adopting the above technical solution, this inclined surface allows the high-pressure hydraulic oil to adapt to the changing aperture through the slope on the end face of the inner sleeve when flowing from bottom to top, so that the high-pressure hydraulic oil flows more smoothly and avoids excessive pressure on the inner sleeve.

[0013] In a further embodiment, a clamping groove is provided inside the joint body, and a snap ring is arranged in the clamping groove. The snap ring is used to limit the axial movement of the inner sleeve.

[0014] By adopting the above technical solution, the snap ring in the clamping groove can further limit the inner sleeve.

[0015] In a further embodiment, an annular protrusion is provided in the middle section of the outside of the joint body. The end face of the annular protrusion close to the rectangular block fits with the outer wall of the rectangular block. An avoidance groove is provided on the end face of the annular protrusion close to the rectangular block, and an O-ring for sealing the fitting gap between the annular protrusion and the outer wall of the rectangular block is arranged in the avoidance groove.

[0016] By adopting the above technical solution, the O-ring mainly plays a supplementary role. It can continue to maintain the sealing effect when the sealing ring fails, so that the hydraulic oil only fills between the bottom of the inner sleeve and the stepped cylindrical surface, and the sealing state can still be maintained at this time. When the O-ring also fails, the internal sealing ring is undoubtedly damaged, and then the whole joint can be replaced, which improves the service life of the quick connector.

[0017] In summary, the present utility model has the following beneficial effects:

[0018] 1. By setting up the quick connector and the inner sleeve, the threaded connection between the inner sleeve and the quick connector, as well as the threaded connection between the quick connector and the oil passage block, can be achieved by relying on the threads on the inner sleeve and the quick connector. Thus, the inner sleeve and the quick connector are firmly fixed on the oil passage block, and even in the face of high-pressure oil, effective sealing can be achieved, greatly improving the sealing performance.

[0019] 2. By setting up the circlip, axial movement of the inner sleeve can be prevented, and then the position of the sealing ring will not change randomly, improving the sealing performance.

[0020] 3. By setting up the sealing ring and the O-ring, the sealing effect can be maintained continuously when the sealing ring fails. The oil only fills the space between the bottom of the inner sleeve and the stepped cylindrical surface, and the sealing state can still be maintained at this time, adding a second layer of protection and extending the service life of the quick connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 FIG. is the overall schematic diagram of an integrated oil passage block of a main engine of the present utility model;

[0022] Figure 2 FIG. is the internal structural schematic diagram of the quick connector and the inner sleeve in an integrated oil passage block of a main engine of the present utility model.

[0023] In the figure, 1, rectangular block; 2, quick connector; 21, connector body; 22, inner sleeve; 3, sealing ring; 4, circlip; 5, O-ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The present utility model will be further described in detail below with reference to the accompanying drawings.

[0025] Among them, the same parts are denoted by the same reference numerals. It should be noted that the terms "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the drawings, and the terms "bottom surface" and "top surface", "inner" and "outer" respectively refer to the directions towards or away from the geometric center of the specific component. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of this specification, "a plurality" means two or more unless otherwise specifically defined. Figure 1

[0026]

[0026] Embodiment:

[0027] As Figures 1-2As shown in the figure, a main engine integrated oil circuit block includes a rectangular block 1. Multiple non - communicating channels are arranged inside the rectangular block 1. Both ends of the channels are provided with stepped cylindrical surfaces, and the diameter of the end of the stepped cylindrical surface facing the outside of the rectangular block 1 is larger than the diameter of the channel. One end of the inner sleeve 22 close to the stepped surface of the stepped cylinder fits with the stepped surface. Both ends of each channel communicate with the outside of the rectangular block 1. An anti - crystallization coating is provided inside each channel. Threaded surfaces are provided at both ends of each channel. Quick connectors 2 are provided at both ends of each channel. The quick connector 2 includes a connector body 21 and an inner sleeve 22. First and second threaded surfaces are respectively provided on the outer wall of one end of the connector body 21 close to the rectangular block 1 and the inner wall of one end of the rectangular block 1 close to the connector body 21. The inner sleeve 22 is screwed inside the connector body 21. A receiving groove is provided at one end of the inner sleeve 22 close to the rectangular block 1. A sealing ring 3 is arranged in the receiving groove, and the end surface of the inner sleeve 22 close to the rectangular block 1 fits with the inner wall of the channel opened in the rectangular block 1. The end surface of the inner sleeve 22 far from the rectangular block 1 is set as an inclined surface, and the diameter of the inclined surface gradually increases from the end close to the rectangular block 1 to the end far from the rectangular block 1 along the axial direction, and the diameter of the end of the inclined surface far from the rectangular block 1 is the same as the inner diameter of the connector body 21. Through the threaded connection between the connector body 21 and the rectangular block 1 and the threaded connection between the inner sleeve 22 and the connector body 21, the quick connector 2 can resist the scouring of high - pressure oil. The inclined surface on the inner sleeve 22 can play a guiding role in the high - pressure oil, so that whether it flows in from top to bottom or from bottom to top, it can maintain a smooth state, reducing the pressure on the threads of the inner sleeve 22. And the sealing ring 3 at the bottom of the inner sleeve 22 can effectively prevent the oil from penetrating into the gap, greatly improving the sealing performance.

[0028] As Figures 1-2 shown, an annular protrusion is provided in the middle section of the outer part of the connector body 21. The end surface of the annular protrusion close to the rectangular block 1 fits with the outer wall of the rectangular block 1. An avoidance groove is provided on the end surface of the annular protrusion close to the rectangular block 1. An O - ring 5 for sealing the fitting gap between the annular protrusion and the outer wall of the rectangular block 1 is arranged in the avoidance groove. A clamping groove is provided inside the connector body 21. A snap ring 4 is arranged in the clamping groove. The snap ring 4 is used to limit the axial movement of the inner sleeve 22. Through the O - ring, when the sealing ring 3 fails, it can continue to prevent the hydraulic oil from leaking outside the quick connector 2, so that it still remains in a state where it can work normally. And the clamping groove inside the connector body 21 is located at the top of the installation position of the inner sleeve 22. The snap ring 4 and the clamping groove cooperate to effectively limit the axial movement of the inner threaded sleeve, and then the sealing ring 3 at its bottom also remains stable, effectively improving the sealing performance.

[0029] Specific implementation process: First, install the circlip 4 in the card slot inside the joint body 21. Then, fixedly install the sealing ring 3 at the bottom of the inner sleeve 22. Next, fixedly install the O-ring in the avoidance groove of the annular protrusion of the joint body 21. After that, screw the inner sleeve 22 into the inside of the joint body 21. Finally, screw the joint body 21 onto the rectangular block 1. After installing the quick connectors 2 in all the through holes on the rectangular block 1, the oil circuit officially starts to operate. The threads on the inner sleeve 22 and the quick connectors 2 cooperate with each other and can remain stable under the scouring of ultra-high hydraulic oil. The inner sleeve 22 is also fixed by the circlip 4 and will not move axially, so as to firmly fix the sealing ring 3 between the inner sleeve 22 and the stepped cylindrical surface through the accommodation groove at the bottom, keeping it sealed.

[0030] In the embodiments disclosed in the present utility model, terms such as "installation", "connection", "linkage", "fixation", etc. shall be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linkage" can be a direct linkage or an indirect linkage through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments disclosed in the present utility model can be understood according to specific circumstances.

[0031] This specific embodiment is only an interpretation of the present utility model and is not a limitation thereof. After reading this specification, those skilled in the art can make modifications without creative contributions to this embodiment as needed, but as long as it is within the scope of the claims of the present utility model, it is protected by the patent law.

Claims

1. A host integrated oil circuit block, characterized in that: It includes a rectangular block (1). Inside the rectangular block (1), there are multiple non-connected channels. Both ends of each channel are communicated with the outside of the rectangular block (1). An anti-crystallization coating is provided inside each channel. Threaded surfaces are provided at both ends of each channel. Quick connectors (2) are provided at both ends of each channel. The quick connector (2) includes a connector body (21) and an inner sleeve (22). A first threaded surface and a second threaded surface are respectively provided on the outer wall of one end of the connector body (21) close to the rectangular block (1) and on the inner wall of one end of the rectangular block (1) close to the connector body (21). The inner sleeve (22) is screwed inside the connector body (21). A receiving groove is provided at one end of the inner sleeve (22) close to the rectangular block (1). A sealing ring (3) is provided in the receiving groove, and the end surface of the inner sleeve (22) close to the rectangular block (1) is in contact with the inner wall of the channel opened in the rectangular block (1).

2. The host integrated oil circuit block according to claim 1, characterized in that: Step cylindrical surfaces are provided at both ends of the channel, and the diameter of the end of the step cylindrical surface facing the outside of the rectangular block (1) is larger than the diameter of the channel. One end of the inner sleeve (22) close to the step surface of the step cylinder is in contact with the step surface.

3. The integrated oil circuit block of the mainframe according to claim 1, characterized in that: The end surface of the inner sleeve (22) far from the rectangular block (1) is set as an inclined surface.

4. The host integrated oil circuit block according to claim 3, characterized in that: The inclined surface gradually increases in diameter from the end close to the rectangular block (1) to the end far from the rectangular block (1) along the axial direction, and the diameter of the end of the inclined surface far from the rectangular block (1) is consistent with the inner diameter of the connector body (21).

5. A main engine integrated oil circuit block according to claim 1, characterized in that: A clamping groove is provided inside the connector body (21), and a snap ring (4) is provided in the clamping groove. The snap ring (4) is used to limit the axial movement of the inner sleeve (22).

6. The integrated oil circuit block of a host according to claim 1, wherein: An annular protrusion is provided in the middle section of the outside of the connector body (21). The end surface of the annular protrusion close to the rectangular block (1) is in contact with the outer wall of the rectangular block (1). An avoidance groove is provided on the end surface of the annular protrusion close to the rectangular block (1). An O-ring (5) for sealing the fitting gap between the annular protrusion and the outer wall of the rectangular block (1) is provided in the avoidance groove.

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