An ultrahigh pressure large flow hydraulic element

Abstract

This invention relates to the field of hydraulic component technology, specifically to an ultra-high pressure, high-flow hydraulic component, comprising a valve body, a valve core, and a drive component. The valve body has interconnected high-pressure flow channels and regulating flow channels. An external hydraulic device is connected to a first interface and a second interface of the valve body. When the external hydraulic device needs to extend, a first sealing component controls the high-pressure flow channel to connect with the first interface and prevents it from connecting with the second interface. A second sealing component prevents the first loop connecting regulating flow channel near the first interface from connecting and regulates the first loop connecting regulating flow channel near the second interface. During this process, the drive component switches the states of the first and second sealing components. The drive component can also drive an auxiliary sealing component to enhance the sealing effect, thereby improving the stability of driving the external hydraulic device.

Description

Technical Field

[0001] This invention relates to the field of hydraulic component technology, and specifically to an ultra-high pressure, high flow hydraulic component. Background Technology

[0002] High-pressure, high-flow hydraulic components and systems are the core power and control units of high-end heavy equipment such as heavy engineering machinery, mining machinery, and metallurgical equipment. Their operational reliability, control precision, and sealing performance directly determine the operational efficiency and safety limits of the entire equipment. As a core integrated control component in high-pressure, high-flow hydraulic components and systems, the multi-way valve is responsible for the coordinated regulation of flow, direction, and pressure across multiple actuators. Its comprehensive performance is a crucial prerequisite for ensuring the stable operation of high-pressure, high-flow hydraulic components and systems.

[0003] However, existing multi-way valves exhibit numerous unavoidable technical defects when adapting to high-pressure and high-flow conditions, severely restricting the performance improvement of hydraulic systems. Firstly, wear on the valve core sealing surface is a prominent issue. Under high-pressure and high-flow conditions, the valve core frequently reverses its direction of opening and closing, and the sealing surface is subjected to alternating high-pressure loads and reciprocating friction over a long period, gradually leading to wear. This results in a continuous decrease in the sealing surface's fit accuracy, a significant reduction in sealing effectiveness, and in severe cases, valve port failure, making it impossible to meet the sealing requirements of high-pressure conditions.

[0004] Secondly, the inherent fit clearance makes internal leakage unavoidable. In order to reduce the movement resistance of the valve core during switching, existing multi-way valves require a small fit clearance between the valve core and the valve seat. However, under high pressure and high flow conditions, the high pressure hydraulic medium is very likely to cause internal leakage through this clearance. This not only causes a decrease in the volumetric efficiency of high pressure and high flow hydraulic components and hydraulic systems and an increase in energy loss, but also causes the system oil temperature to rise, accelerates the aging of hydraulic oil, and affects the long-term operational stability of the system.

[0005] Finally, uneven erosion and wear of the sealing surface. Under the continuous impact of high-flow-rate and high-speed hydraulic medium, the valve core sealing surface will be severely eroded by the fluid. The area near the outlet has a higher medium flow rate and stronger turbulence effect, resulting in a much higher degree of wear than other areas. This causes uneven wear of the sealing surface, further aggravating sealing failure and leakage problems, and significantly shortening the service life of the components. Summary of the Invention

[0006] This invention provides an ultra-high pressure, high flow hydraulic component to solve the problem that existing multi-way valves cannot simultaneously achieve high sealing performance and erosion and wear resistance.

[0007] The present invention provides an ultra-high pressure, high flow rate hydraulic component using the following technical solution:

[0008] An ultra-high pressure, high flow hydraulic component includes a valve body, a valve core, and a drive component.

[0009] The valve body has a high-pressure flow channel inside, and an oil inlet and an oil outlet connected to the high-pressure flow channel are provided on the valve body. The valve body also has a regulating flow channel inside, which is in the same plane as the high-pressure flow channel and is interconnected. The high-pressure flow channel is located on the vertical center line of the regulating flow channel. The valve body has a first interface and a second interface connected to the regulating flow channel. The first interface and the second interface are used to connect to external hydraulic equipment. Each end of the regulating flow channel is provided with a first circuit connected to the oil outlet. The valve core includes a first sealing component, a second sealing component, and an auxiliary sealing component. The first sealing component prevents the high-pressure flow channel from connecting to the first interface or the second interface. The second sealing component prevents the first circuit from connecting to the regulating flow channel. The auxiliary sealing component enhances the sealing effect of the first sealing component and the second sealing component. The driving component drives the first sealing component, the second sealing component, and the auxiliary sealing component to switch sealing states.

[0010] Furthermore, the first sealing assembly includes a sealing cylinder, which is coaxially slidably disposed in the regulating flow channel. The sealing cylinder is initially disposed in the middle of the regulating flow channel. Both ends of the sealing cylinder are coaxially fixedly provided with first sealing discs. The outer edge of the first sealing discs is sealed and connected to the side wall of the regulating flow channel. The first sealing discs are used to prevent the high-pressure flow channel from communicating with the first interface or the second interface. When the sealing cylinder moves along its own axis, the first sealing discs can pass the position of the first interface or the second interface. The driving member is used to drive the sealing cylinder to move in its own axis direction.

[0011] Furthermore, the second sealing assembly includes two second sealing discs, which are disposed at the ends of the regulating flow channel. One second sealing disc and one first sealing disc are distributed on both sides of the first interface; another second sealing disc and another first sealing disc are distributed on both sides of the second interface; the second sealing discs are capable of passing over the first interface or the second interface; the driving member is used to drive the second sealing discs to move within the regulating flow channel.

[0012] Furthermore, the auxiliary sealing assembly includes two sealing sleeves, which are made of flexible material. Each sealing sleeve is disposed between a first sealing disc and a second sealing disc. When the first sealing disc and the second sealing disc approach each other, the sealing sleeve can deform and tightly abut against the side wall of the regulating flow channel.

[0013] Furthermore, the drive component can also increase the squeezing force of the sealing sleeve on the regulating flow channel after the second sealing disc and the first sealing disc wear.

[0014] Furthermore, the driving component includes two driving rods and two transmission assemblies. One end of each driving rod passes through the valve body and extends to the regulating flow channel. The driving rod is coaxial with the regulating flow channel. The two driving rods are distributed at both ends of the regulating flow channel. The transmission assemblies are capable of transmitting the movement of the driving rods along their own axial direction to the second sealing disc and the sealing cylinder.

[0015] Furthermore, the driving component also includes two guide sleeves and two rotating sleeves, each guide sleeve being fixedly mounted on the valve body; the inner wall of each guide sleeve is provided with a plurality of first guide blocks and a plurality of second guide blocks, the plurality of first guide blocks being evenly distributed in the circumferential direction of the inner wall of the guide sleeve, and the plurality of first guide blocks being positioned near one end of the guide sleeve; the plurality of second guide blocks being evenly distributed in the circumferential direction of the inner wall of the guide sleeve, and the plurality of second guide blocks being positioned near the other end of the guide sleeve, one end of the second guide block being positioned in the gap between two first guide blocks, and the ends of the first guide blocks and the second guide blocks that are close to each other being inclined; each rotating sleeve is coaxially fixedly connected to a second sealing disc, and the rotating sleeve is slidably connected to the driving rod; the rotating sleeve is provided with a guide block, the guide block being able to slide in the gap between two adjacent first guide blocks or in the gap between two adjacent second guide blocks, and when the second sealing disc moves relative to the valve body, the second sealing disc rotates under the guidance of the first guide blocks and the second guide blocks.

[0016] Furthermore, the transmission assembly includes a first elastic element and a second elastic element, the first elastic element being disposed between the drive rod and the rotating sleeve, and the second elastic element being disposed between the second sealing disc and the first sealing disc; the stiffness coefficient of the first elastic element is greater than that of the second elastic element.

[0017] Furthermore, the driving component also includes two adjusting rods and two adjusting discs; both ends of the sealing cylinder are coaxially provided with spiral grooves whose openings are far apart and not connected to each other; one end of the driving rod extends into the spiral groove; the end of the driving rod inside the spiral groove is provided with a sliding cavity, and one end of the adjusting rod is coaxially slidably disposed in the sliding cavity; the sliding cavity is always connected to the interior of the sealing sleeve; each adjusting disc is coaxially fixedly connected to one adjusting rod, the adjusting disc is spirally connected to the spiral groove, and the spiral groove is always connected to the sliding cavity.

[0018] Furthermore, the valve body is provided with a plurality of regulating channels, a plurality of valve cores and a plurality of driving components, with each regulating channel corresponding to one valve core and one driving component.

[0019] The beneficial effects of this invention are as follows: This invention provides an ultra-high pressure, high-flow hydraulic component, comprising a valve body, a valve core, and a drive component. The valve body has interconnected high-pressure flow channels and regulating flow channels. High-pressure hydraulic oil can enter the high-pressure flow channels through the inlet and exit through the outlet. External hydraulic equipment is connected to a first and second interface of the valve body. The valve core is divided into a first sealing assembly, a second sealing assembly, and a third sealing assembly. When the external hydraulic equipment needs to extend, the first sealing assembly controls the high-pressure flow channels to connect with the first interface and prevents them from connecting with the second interface. Thus, high-pressure hydraulic oil enters the external hydraulic equipment through the first interface. The hydraulic oil in the hydraulic equipment returns to the control channel through the second interface. At this time, the second sealing component blocks the first circuit connection control channel near the first interface and controls the first circuit connection control channel near the second interface. The hydraulic oil entering the first circuit is discharged from the valve body through the oil outlet. During this process, the drive unit switches the state of the first sealing component and the second sealing component. At the same time, when the first sealing component and the second sealing component are working, the drive unit can also drive the auxiliary sealing component to enhance the sealing effect. Furthermore, by setting the auxiliary sealing component, the sealing effect of the hydraulic oil during the flow process is ensured, thereby improving the stability of driving the external hydraulic equipment. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of an ultra-high pressure, high flow hydraulic component provided in an embodiment of the present invention;

[0022] Figure 2 A side view of an ultra-high pressure, high flow hydraulic component in its initial state, provided in an embodiment of the present invention;

[0023] Figure 3 for Figure 2 A cross-sectional view along the AA direction;

[0024] Figure 4 This is a cross-sectional view of an ultra-high pressure, high flow hydraulic component provided in an embodiment of the present invention when the second interface is connected to the high pressure flow channel;

[0025] Figure 5 for Figure 3 A magnified view of a section at point B in the middle;

[0026] Figure 6 for Figure 4 A magnified view of a section at point C;

[0027] Figure 7 This is a schematic diagram of the structure of a guide sleeve after being cut in an ultra-high pressure, high flow hydraulic component provided in an embodiment of the present invention.

[0028] In the diagram: 110, valve body; 111, high-pressure flow channel; 1111, oil inlet; 1112, oil outlet; 112, regulating flow channel; 1121, first interface; 1122, second interface; 113, first circuit; 211, sealing cylinder; 212, limiting ring; 213, first sealing disc; 220, second sealing disc; 230, sealing sleeve; 240, drive rod; 250, guide sleeve; 251, first guide block; 252, second guide block; 260, rotating sleeve; 310, first elastic element; 320, second elastic element; 330, adjusting rod; 340, adjusting disc; 350, sliding cavity; 360, spiral groove. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] The serial numbers assigned to components in this document, such as "first," "second," etc., are merely used to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages). In the description of this invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention.

[0031] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that they are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0032] like Figures 1 to 7 As shown in the figure, an ultra-high pressure, high flow hydraulic component provided in this embodiment of the invention includes a valve body 110, a valve core, and a drive component.

[0033] The valve body 110 has a high-pressure flow channel 111 inside. The valve body 110 is provided with an oil inlet 1111 and an oil outlet 1112 that connect the high-pressure flow channel 111. An oil tank and an oil pump are provided in the external environment. The oil tank stores hydraulic oil. The oil pump is used to pump the hydraulic oil in the oil tank into the high-pressure flow channel 111 through the oil inlet 1111. The oil outlet 1112 is connected to the oil tank through a conduit, so the hydraulic oil in the high-pressure flow channel 111 can return to the oil tank.

[0034] The valve body 110 is provided with a regulating flow channel 112. The regulating flow channel 112 and the high-pressure flow channel 111 are in the same plane and are interconnected. Specifically, if the extension direction of the high-pressure flow channel 111 is determined to be the front-back direction, then the extension direction of the regulating flow channel 112 is the left-right direction. The high-pressure flow channel 111 is located on the vertical line of the regulating flow channel 112. The high-pressure flow channel 111 and the regulating flow channel 112 have the same diameter. The intersection of the high-pressure flow channel 111 and the regulating flow channel 112 is the connection point.

[0035] The valve body 110 is provided with a first interface 1121 and a second interface 1122 that connect to the regulating flow channel 112. The first interface 1121 and the second interface 1122 are distributed on the left and right sides of the intersection of the high-pressure flow channel 111 and the regulating flow channel 112, and the distance between the first interface 1121 and the intersection is equal to the distance between the second interface 1122 and the intersection. Further, the first interface 1121 is located to the left of the second interface 1122. The first interface 1121 and the second interface 1122 are used to connect to external hydraulic equipment. When the first interface 1121 is connected to the high-pressure flow channel 111, the second interface 1122 cannot be connected to the high-pressure flow channel 111. Conversely, when the second interface 1122 is connected to the high-pressure flow channel 111, the first interface 1121 cannot be connected to the high-pressure flow channel 111. Each end of the regulating flow channel 112 is provided with a first circuit 113 that connects to the oil outlet 1112. Specifically, when the first interface 1121 is connected to the high-pressure channel, the first circuit 113 on the first interface 1121 side cannot connect to the regulating flow channel 112, while the first circuit 113 on the second interface 1122 side connects to the regulating flow channel 112. Conversely, when the second interface 1122 is connected to the high-pressure channel, the first circuit 113 on the second interface 1122 side cannot connect to the regulating flow channel 112, while the first circuit 113 on the first interface 1121 side connects to the regulating flow channel 112.

[0036] The valve core includes a first sealing assembly, a second sealing assembly, and an auxiliary sealing assembly. The first sealing assembly prevents the high-pressure flow channel 111 from connecting to either the first interface 1121 or the second interface 1122. Initially, the first sealing assembly simultaneously prevents the high-pressure flow channel 111 from connecting to both the first interface 1121 and the second interface 1122. The second sealing assembly prevents the first circuit 113 from connecting to the regulating flow channel 112. Initially, the second sealing assembly simultaneously prevents both first circuits 113 from connecting to the regulating flow channel 112. The conditions of the first and second sealing assemblies are adjusted according to the needs of the external hydraulic equipment, thereby achieving precise control of the external hydraulic equipment.

[0037] Furthermore, as the external hydraulic equipment operates, both the first and second sealing components may experience varying degrees of wear. To ensure the precise and stable operation of the entire hydraulic system, an auxiliary sealing component is installed. This auxiliary sealing component enhances the sealing effect of the first and second sealing components and reduces the risk of hydraulic oil leakage.

[0038] The driving component is used to drive the first sealing assembly, the second sealing assembly, and the auxiliary sealing assembly to switch sealing states. The driving method of the driving component for the first sealing assembly, the second sealing assembly, and the auxiliary sealing assembly is determined by the operating state of the external hydraulic equipment.

[0039] The present invention discloses an ultra-high pressure, high flow rate hydraulic component. A valve body 110 is installed in a hydraulic system. A high pressure flow channel 111 and a regulating flow channel 112 are provided on the valve body 110 for interconnection. High pressure hydraulic oil is pumped into the high pressure flow channel 111 through the oil inlet 1111. External hydraulic equipment is connected to the first interface 1121 and the second interface 1122 of the valve body 110. The hydraulic oil is adjusted to enter the hydraulic equipment from the first interface 1121 or the second interface 1122 according to the needs of the external hydraulic equipment. The valve core is divided into a first sealing assembly, a second sealing assembly, and a third sealing assembly. When the external hydraulic equipment needs to extend, the first sealing assembly controls the high-pressure flow channel 111 to connect with the first interface 1121 and prevents the high-pressure flow channel 111 from connecting with the second interface 1122. Then, the high-pressure hydraulic oil enters the external hydraulic equipment through the first interface 1121, and the hydraulic oil in the external hydraulic equipment returns to the regulating flow channel 112 through the second interface 1122. At this time, the second sealing assembly prevents the first circuit 113 set near the first interface 1121 from connecting with the regulating flow channel 112, and regulates the first circuit 113 set near the second interface 1122 to connect with the regulating flow channel 112. The hydraulic oil entering the first circuit 113 is discharged from the valve body 110 through the oil outlet 1112. During this process, the driving component switches the state of the first sealing component and the second sealing component. At the same time, when the first sealing component and the second sealing component are working, the driving component can also drive the auxiliary sealing component to enhance the sealing effect. Furthermore, by setting the auxiliary sealing component, the sealing effect of the hydraulic oil during the flow process is ensured, the stability of driving external hydraulic equipment is improved, and thus the reliability of the hydraulic system operation is improved.

[0040] In one embodiment, the first sealing assembly includes a sealing cylinder 211 and a limiting ring 212. The sealing cylinder 211 is coaxially slidably disposed in the regulating channel 112, and a driving member is used to drive the sealing cylinder 211 to move in its own axial direction. The diameter of the sealing cylinder 211 is smaller than the diameter of the regulating channel 112. The sealing cylinder 211 is initially disposed in the middle of the regulating channel 112, and correspondingly, the intersection of the regulating channel 112 and the high-pressure channel 111 is located in the middle of the sealing cylinder 211. Both ends of the sealing cylinder 211 are coaxially fixed with a first sealing disc 213. The diameter of the first sealing disc 213 is equal to the diameter of the regulating flow channel 112, so that the outer edge of the first sealing disc 213 is sealed to the side wall of the regulating flow channel 112. The first sealing disc 213 can prevent the high pressure flow channel 111 from communicating with the first interface 1121 or the second interface 1122. Furthermore, in the initial state, the distance between the two first sealing discs 213 and the intersection point of the regulating flow channel 112 and the high pressure flow channel 111 is set to be the same, so that the hydraulic oil in the high pressure flow channel 111 cannot pass through the first sealing disc 213 and enter the first interface 1121 or the second interface 1122 through the regulating flow channel 112. After the first interface 1121 and the second interface 1122 are stably connected to the external hydraulic equipment, and the external hydraulic equipment needs to be extended, the sealing cylinder 211 moves to the left along its own axis. The first sealing disc 213 on the left gradually passes the position of the first interface 1121. At this time, the hydraulic oil in the high-pressure flow channel 111 enters the first interface 1121 through the regulating flow channel 112. The first sealing disc 213 on the right moves towards the intersection of the regulating flow channel 112 and the high-pressure flow channel 111. The first sealing disc 213 on the right then prevents the hydraulic oil in the high-pressure flow channel 111 from entering the second interface 1122 through the regulating flow channel 112. This allows the hydraulic oil to enter the external hydraulic equipment through the first interface 1121, and the hydraulic oil in the external hydraulic equipment returns to the regulating flow channel 112 through the second interface 1122. Conversely, when the external hydraulic equipment needs to be shortened, the sealing cylinder 211 moves to the right along its own axis. The first sealing disc 213 on the left gradually moves towards the intersection of the regulating flow channel 112 and the high-pressure flow channel 111, while the second sealing disc 220 on the right gradually passes the position of the second interface 1122. Two limiting rings 212 are provided inside the regulating flow channel 112 to limit the range of movement of the sealing cylinder 211 within the regulating flow channel 112.

[0041] In one embodiment, the second sealing assembly includes two second sealing discs 220, which are disposed at the end of the regulating flow channel 112. One second sealing disc 220 and one first sealing disc 213 are distributed on both sides of the first interface 1121; the other second sealing disc 220 and the other first sealing disc 213 are distributed on both sides of the second interface 1122. Taking the left side of the intersection of the regulating flow channel 112 and the high-pressure flow channel 111 as an example, the distance between the first sealing disc 213 and the first interface 1121 is smaller than the distance between the second sealing disc 220 and the first interface 1121. When the first interface 1121 is connected to the high-pressure flow channel 111, the first sealing disc 213 on the left side remains stationary, while the first sealing disc 213 on the right side can move past the position of the second interface 1122 toward the intersection of the regulating flow channel 112 and the high-pressure flow channel 111, thereby keeping the first loop 113 on the left side blocked and connecting the first loop 113 on the right side to the right end of the regulating flow channel 112. Furthermore, when the driving component drives the sealing cylinder 211 to move in its own axial direction, the driving component can also drive one of the second sealing discs 220 to move simultaneously within the regulating flow channel 112.

[0042] In one embodiment, the auxiliary sealing assembly includes two sealing sleeves 230, which are made of flexible material. Each sealing sleeve 230 is disposed between a first sealing disc 213 and a second sealing disc 220. When the first sealing disc 213 and the second sealing disc 220 approach each other, the sealing sleeve 230 can deform and tightly abut against the side wall of the regulating flow channel 112. When the sealing sleeve 230 abuts against the side wall of the regulating flow channel 112, the sealing sleeve 230 can assist and enhance the sealing effect of the first sealing disc 213 and the second sealing disc 220, preventing hydraulic oil from passing through the first sealing disc 213 and the second sealing disc 220 at the same time.

[0043] In one embodiment, the drive component can also increase the squeezing force of the sealing sleeve 230 on the regulating flow channel 112 after the second sealing disc 220 and the first sealing disc 213 wear. Specifically, after the external hydraulic equipment reciprocates and extends, the first sealing disc 213 and the second sealing disc 220 will experience different degrees of wear. One reason for the wear is the friction when sliding relative to the side wall of the regulating flow channel 112, and another reason is the erosion of its surface and edges by the hydraulic oil. At this time, the drive component increases the squeezing force of the sealing sleeve 230 on the regulating flow channel 112 to ensure the sealing and stability of the overall hydraulic oil flow.

[0044] In one embodiment, the drive unit includes two drive rods 240 and two transmission assemblies. The drive rods 240 slide through the valve body 110 and are coaxial. The two drive rods 240 are distributed at both ends of the regulating flow channel 112, and are coaxial with the regulating flow channel 112. One end of each drive rod 240 is outside the valve body 110, and the other end is inside the regulating flow channel 112. The transmission assemblies can transmit the movement of the drive rods 240 along their own axial direction to the second sealing disc 220 and the sealing cylinder 211. Initially, the distance between the two drive rods 240 is at its maximum. When the distance needs to be shortened by external hydraulic equipment, as shown in the attached diagram... Figures 5 to 6 In this state, the operator pushes the drive rod 240 on the left side to move horizontally to the right, while the drive rod 240 on the right side remains stationary. Under the action of the transmission assembly, the second sealing disc 220 on the right side remains stationary, and the second sealing disc 220 on the left side gradually passes over the first interface 1121. At this time, the second sealing disc 220 on the left side releases its obstruction to the first circuit 113 and the regulating flow channel 112 on the left side. Correspondingly, under the action of the transmission assembly, the first sealing disc 213 on the left side gradually moves towards the intersection of the regulating flow channel 112 and the high-pressure flow channel 111, and the first sealing disc 213 on the right side gradually passes over the second interface 1122, so that the second interface 1122 connects to the high-pressure flow channel 111.

[0045] In one embodiment, the drive unit further includes two guide sleeves 250 and two rotating sleeves 260. In this embodiment, a drive rod 240, a guide sleeve 250 and a rotating sleeve 260 are correspondingly arranged. Each guide sleeve 250 is fixed on the valve body 110 and the guide sleeve 250 is coaxially arranged outside the drive rod 240. The inner wall of the guide sleeve 250 is provided with a plurality of first guide blocks 251 and a plurality of second guide blocks 252. The plurality of first guide blocks 251 and the plurality of second guide blocks 252 are distributed on both sides of the axial direction of the guide sleeve 250. The plurality of first guide blocks 251 are evenly distributed in the circumferential direction of the inner wall of the guide sleeve 250 and are located near one end of the guide sleeve 250. The plurality of second guide blocks 252 are evenly distributed in the circumferential direction of the inner wall of the guide sleeve 250 and are located near the other end of the guide sleeve 250. One end of the second guide block 252 is located in the gap between two first guide blocks 251. In the axial direction of the guide sleeve 250, there is an overlapping area between the first guide blocks 251 and the second guide blocks 252. The ends of the first guide blocks 251 and the second guide blocks 252 that are close to each other are the overlapping area in the axial direction. The ends of the first guide blocks 251 and the second guide blocks 252 that are close to each other are both set in an inclined shape. Each rotating sleeve 260 is coaxially fixedly connected to a second sealing disc 220, and the rotating sleeve 260 is coaxially slidably connected to the drive rod 240. A guide block is provided on the rotating sleeve 260, which can slide in the gap between two adjacent first guide blocks 251 or between two adjacent second guide blocks 252. When the guide block moves to the overlapping area of ​​the first guide blocks 251 and the second guide blocks 252 in the axial direction, the inclined ends of the first guide blocks 251 and the second guide blocks 252 approaching each other can guide the guide block to deflect in the circumferential direction of the guide sleeve 250, causing the second sealing disc 220 to rotate, thereby preventing excessive local wear on the second sealing disc 220. Furthermore, by adjusting the inclination angle of the inclined ends of the first guide blocks 251 and the second guide blocks 252 approaching each other, it is ensured that the rotating sleeve 260 can only rotate in one direction when reciprocating along its own axial direction, thereby ensuring that the second sealing disc 220 can rotate in the circumferential direction. Furthermore, to ensure that the second sealing disc 220 can rotate smoothly, the sealing sleeve 230 and the second sealing disc 220 are coaxially rotatably connected.

[0046] In one embodiment, the transmission assembly includes a first elastic element 310 and a second elastic element 320. The first elastic element 310 is disposed between the drive rod 240 and the rotating sleeve 260, and the second elastic element 320 is disposed between the second sealing disc 220 and the first sealing disc 213. The first elastic element 310 is a first spring, and the second elastic element 320 is a second spring, with the spring constant of the first spring being greater than that of the second spring. Taking the drive rod 240 on the left moving horizontally to the right as an example, in the initial stage of the movement, the deformation of the first spring is smaller than that of the second spring, and the distance between the first sealing disc 213 and the second sealing disc 220 gradually decreases, thereby achieving simultaneous movement of the first sealing disc 213 and the second sealing disc 220 within the regulating flow channel 112 when the drive rod 240 moves along the axial direction.

[0047] In one embodiment, the driving component further includes two adjusting rods 330 and two adjusting discs 340; the two ends of the sealing cylinder 211 are coaxially provided with spiral grooves 360 whose openings are far apart and do not communicate with each other. One end of the driving rod 240 extends into the spiral groove 360. The end of the driving rod 240 inside the spiral groove 360 ​​is provided with a sliding cavity 350, and one end of the adjusting rod 330 is coaxially slidably disposed in the sliding cavity 350; the sliding cavity 350 is always connected to the inside of the sealing sleeve 230; each adjusting disc 340 is coaxially fixedly connected to an adjusting rod 330, and the adjusting disc 340 is spirally connected to the spiral groove 360, which is always in communication with the sliding cavity 350. Specifically, taking the horizontal movement of the left drive rod 240 to the right as an example, in the initial stage of movement, the deformation of the first spring is smaller than that of the second spring. The left second sealing disc 220 gradually moves to the right. Under the action of the left guide sleeve 250 and rotating sleeve 260, the left second sealing disc 220 gradually rotates. Since the second sealing disc 220 is slidably connected to the drive rod 240, the second sealing disc 220 will drive the drive rod 240 to rotate synchronously. The drive rod 240 is slidably connected to the adjusting rod 330 on the same axis, and the drive rod 240 will then drive the adjusting rod 330 to rotate. The rotating adjusting rod 330 drives the adjustment... When disc 340 rotates, the adjusting disc 340 rotates relative to the sealing cylinder 211, thus changing the position between the adjusting disc 340 and the sealing cylinder 211. As the drive rod 240 continues to move to the right until it presses against the adjusting disc 340, after the drive rod 240 reciprocates multiple times, the second sealing disc 220 drives the adjusting disc 340 to rotate in a constant direction, and the maximum stroke of the drive rod 240 moving to the right continuously increases. As a result, the gap between the first sealing disc 213 and the second sealing disc 220 gradually decreases, thereby gradually increasing the squeezing force of the sealing sleeve 230 on the regulating flow channel 112.

[0048] In one embodiment, the valve body 110 is provided with multiple control channels 112, multiple valve cores and multiple driving components. Each control channel 112 is corresponding to one valve core and one driving component, thereby forming a multi-way valve. When the operator needs to switch one or more of the channels on or off, he can manually push the driving rod 240 at the corresponding position.

[0049] In one embodiment, an electrically controlled lever is provided between the plurality of drive rods 240, which can apply a continuous pushing force to the drive rods 240, thereby reducing the workload of the workers.

[0050] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An ultrahigh pressure, high flow hydraulic component, characterized by, include: The valve body has a high-pressure flow channel inside, and an oil inlet and an oil outlet connected to the high-pressure flow channel are provided on the valve body. The valve body also has a regulating flow channel inside, which is in the same plane as the high-pressure flow channel and is interconnected. The high-pressure flow channel is located on the vertical center line of the regulating flow channel. The valve body has a first interface and a second interface connected to the regulating flow channel. The first interface and the second interface are used to connect to external hydraulic equipment. Each end of the regulating flow channel has a first circuit connected to the oil outlet. The valve core includes a first sealing assembly, a second sealing assembly, and an auxiliary sealing assembly. The first sealing assembly is used to prevent the high-pressure flow channel from communicating with the first interface or the second interface. The second sealing assembly is used to prevent the first circuit from communicating with the control flow channel. The auxiliary sealing assembly is used to enhance the sealing effect of the first sealing assembly and the second sealing assembly. A driving component is used to drive the first sealing assembly, the second sealing assembly, and the auxiliary sealing assembly to switch sealing states.

2. A super-high-pressure high-flow hydraulic element according to claim 1, characterized in that: The first sealing assembly includes a sealing cylinder, which is coaxially slidably disposed in the regulating flow channel. The sealing cylinder is initially disposed in the middle of the regulating flow channel. Both ends of the sealing cylinder are coaxially fixedly provided with first sealing discs. The outer edge of the first sealing discs is sealed and connected to the side wall of the regulating flow channel. The first sealing discs are used to prevent the high-pressure flow channel from communicating with the first interface or the second interface. When the sealing cylinder moves along its own axis, the first sealing discs can pass the position of the first interface or the second interface. The driving component is used to drive the sealing cylinder to move in the direction of its own axis.

3. A super-high-pressure high-flow hydraulic element according to claim 2, characterized in that: The second sealing assembly includes two second sealing discs, which are disposed at the ends of the control channel. One second sealing disc and one first sealing disc are distributed on both sides of the first interface; the other second sealing disc and the other first sealing disc are distributed on both sides of the second interface; the second sealing discs are capable of passing over the first interface or the second interface. The driving component is used to drive the second sealing disc to move within the regulating flow channel.

4. A super-high-pressure high-flow hydraulic element according to claim 3, characterized in that: The auxiliary sealing assembly includes two sealing sleeves, which are made of flexible material. Each sealing sleeve is disposed between a first sealing disc and a second sealing disc. When the first sealing disc and the second sealing disc are close to each other, the sealing sleeve can deform and tightly abut against the side wall of the control channel.

5. A superhigh-pressure high-flow hydraulic element according to claim 4, characterized in that: The drive component can also increase the squeezing force of the sealing sleeve on the regulating flow channel after the second sealing disc and the first sealing disc wear.

6. A superhigh-pressure high-flow hydraulic element according to claim 5, characterized in that: The driving component includes two driving rods and two transmission assemblies. One end of each driving rod passes through the valve body and extends to the regulating flow channel. The driving rod is coaxial with the regulating flow channel. The two driving rods are distributed at both ends of the regulating flow channel. The transmission assemblies can transmit the movement of the driving rods along their own axial direction to the second sealing disc and the sealing cylinder.

7. A super-high-pressure high-flow hydraulic element according to claim 6, characterized in that: The driving component further includes two guide sleeves and two rotating sleeves, each guide sleeve being fixedly mounted on the valve body. The inner wall of each guide sleeve is provided with multiple first guide blocks and multiple second guide blocks. The multiple first guide blocks are evenly distributed circumferentially on the inner wall of the guide sleeve, with each first guide block positioned near one end of the guide sleeve. The multiple second guide blocks are also evenly distributed circumferentially on the inner wall of the guide sleeve, with each second guide block positioned near the other end of the guide sleeve. One end of each second guide block is positioned in the gap between two first guide blocks, and the ends of the first and second guide blocks that are close to each other are inclined. Each rotating sleeve is coaxially fixedly connected to a second sealing disc, and the rotating sleeve is slidably connected coaxially to the driving rod. A guide block is provided on each rotating sleeve, and the guide block can slide in the gap between two adjacent first guide blocks or between two adjacent second guide blocks. When the second sealing disc moves relative to the valve body, it rotates under the guidance of the first and second guide blocks.

8. A high-pressure, high-flow hydraulic component according to claim 7, characterized in that: The transmission assembly includes a first elastic element and a second elastic element. The first elastic element is disposed between the drive rod and the rotating sleeve, and the second elastic element is disposed between the second sealing disc and the first sealing disc. The stiffness coefficient of the first elastic element is greater than that of the second elastic element.

9. A high-pressure, high-flow hydraulic component according to claim 8, characterized in that: The driving component also includes two adjusting rods and two adjusting discs; both ends of the sealing cylinder are coaxially provided with spiral grooves whose openings are far apart and not connected to each other; one end of the driving rod extends into the spiral groove; the end of the driving rod inside the spiral groove is provided with a sliding cavity, and one end of the adjusting rod is coaxially slidably disposed in the sliding cavity; the sliding cavity is always connected to the inside of the sealing sleeve; each adjusting disc is coaxially fixedly connected to one adjusting rod, the adjusting disc is spirally connected to the spiral groove, and the spiral groove is always connected to the sliding cavity.

10. A high-pressure, high-flow hydraulic component according to claim 1, characterized in that: The valve body is provided with a plurality of regulating channels, a plurality of valve cores and a plurality of driving components, and each regulating channel is provided with a corresponding valve core and a driving component.

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