A three-component hydraulic control system for a vibrator

Abstract

This invention discloses a three-component vibrator hydraulic control system, comprising a three-component vibrator and a hydraulic control system. The three-component vibrator includes an inner hammer and an outer hammer. The outer hammer is sleeved on the outside of the inner hammer and has gaps around its perimeter. Horizontal hydraulic push rods are respectively arranged in four directions on the outer hammer, and a vertical hydraulic push rod is arranged at the center of the inner hammer. The hydraulic control system includes a high-pressure oil circuit, a low-pressure oil circuit, multiple solenoid valves, and an oil tank. It is configured to control the connection between the corresponding hydraulic chamber of the corresponding hydraulic push rod and the oil tank and / or the high / low-pressure oil circuit through multiple solenoid valves, thereby controlling the outer hammer to generate a transverse wave source on the horizontal X-axis or Y-axis under the drive of the horizontal hydraulic push rod, or the inner and outer hammers to generate a longitudinal wave source on the vertical Z-axis under the drive of the vertical hydraulic push rod. The solution of this invention can ensure the rational operation of each hydraulic push rod during operation and prevent conflicts.

Description

Technical Field

[0001] This invention relates to the field of petroleum exploration technology, specifically to a three-component hydraulic control system for a vibrator. Background Technology

[0002] Currently, three-component seismic acquisition technology is being used more and more widely in the field of oil and gas exploration, which is of great help in solving structural imaging and improving the resolution of multiple reservoirs. In China, some important oil and gas discoveries have been made in western China using three-component seismic exploration technology. However, current three-component exploration operations mainly utilize a combination of P-wave and S-wave sources to obtain the three seismic signal excitation sources. This method not only suffers from low utilization of each source device, but also has problems such as complex construction processes and inconvenient synchronous control.

[0003] Therefore, designing a vibrator that can generate both transverse and longitudinal wave sources and its hydraulic control system is urgently needed in this field. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention proposes a three-component hydraulic control system for a vibrator, comprising:

[0005] A three-component vibrator, comprising an inner hammer body and an outer hammer body, wherein the outer hammer body is sleeved on the outside of the inner hammer body and there is a gap between the outer hammer body and the inner hammer body, and four horizontal hydraulic push rods are arranged opposite each other in four directions on the outer hammer body, the four horizontal hydraulic push rods pointing horizontally towards the center of the inner hammer body, and a vertical hydraulic push rod is arranged in the vertical direction at the center of the inner hammer body.

[0006] The hydraulic control system includes a high-pressure oil circuit, a low-pressure oil circuit, multiple solenoid valves, and an oil tank. The high-pressure and low-pressure oil circuits are fluidly connected to the hydraulic chambers of the corresponding hydraulic push rods to provide power for the corresponding hydraulic push rods to contract and / or drive the inner and outer hammers. The multiple solenoid valves are respectively connected to the high-pressure and low-pressure oil circuits to synchronously control the flow direction of the pressurized oil in the hydraulic chambers of the multiple hydraulic push rods. The oil tank is connected to the corresponding solenoid valves.

[0007] The hydraulic control system is configured to control the four horizontal hydraulic push rods, such that a pair of horizontal hydraulic push rods on the horizontal X-axis or horizontal Y-axis cross the gap and insert into the inner hammer body to connect the inner and outer hammer bodies, and that the outer hammer body vibrates in the horizontal X-axis or horizontal Y-axis direction under the drive of the oppositely arranged pair of horizontal hydraulic push rods to generate a transverse wave source. The hydraulic control system is also configured to simultaneously control the four horizontal hydraulic push rods and the vertical hydraulic push rod, such that the four horizontal hydraulic push rods cross the gap and insert into the inner hammer body to connect the inner and outer hammer bodies, and that the inner and outer hammer bodies vibrate in the Z-axis direction under the drive of the vertical hydraulic push rod to generate a longitudinal wave source. The oil tank is configured to receive pressurized oil in the hydraulic chamber of the horizontal hydraulic push rod in the vertical direction of motion when the hydraulic control system controls the outer hammer body to vibrate in the horizontal X-axis or horizontal Y-axis direction, so as to minimize the pressure in the corresponding hydraulic chamber.

[0008] In one or more embodiments, the plurality of solenoid valves include: a horizontal servo solenoid valve, including first and second servo inlets and first and second servo outlets, wherein the first servo inlet is directly connected to the high-pressure oil circuit, and the second servo inlet is directly connected to the low-pressure oil circuit; a vertical servo solenoid valve, including third and fourth servo inlets and third and fourth servo outlets, wherein the third servo inlet is directly connected to the high-pressure oil circuit, the fourth servo inlet is directly connected to the low-pressure oil circuit, the third servo outlet is connected to the first propulsion chamber of the vertical hydraulic push rod, and the fourth servo outlet is connected to the second propulsion chamber of the vertical hydraulic push rod; a first propulsion solenoid valve, including first and second propulsion inlets and first and second propulsion outlets, wherein the first propulsion inlet is connected to the first servo outlet of the horizontal servo solenoid valve, and the first and second propulsion outlets are respectively connected to the propulsion chambers of two adjacent horizontal hydraulic push rods, configured to control the two adjacent horizontal hydraulic push rods to extend toward the center of the inner hammer; a second propulsion solenoid valve, including third and fourth propulsion inlets and third and fourth propulsion outlets, wherein the third propulsion inlet is connected to the water The second servo outlet of the horizontal servo solenoid valve is connected, and the third and fourth propulsion outlets are respectively connected to the propulsion chambers of two adjacent horizontal hydraulic push rods, configured to control the two adjacent horizontal hydraulic push rods to extend toward the center of the inner hammer body; the first pressure relief solenoid valve includes first and second pressure relief inlets and a pressure relief outlet, wherein the first pressure relief inlet is directly connected to the high-pressure oil circuit, the second pressure relief inlet is connected to the oil tank, and the pressure relief outlet is connected to the second propulsion inlet of the first propulsion solenoid valve; the second pressure relief solenoid valve includes third and fourth pressure relief inlets and a pressure relief outlet, wherein the third pressure relief inlet is directly connected to the high-pressure oil circuit, the fourth pressure relief inlet is connected to the oil tank, and the pressure relief outlet is connected to the fourth propulsion inlet of the second propulsion solenoid valve; the retraction solenoid valve includes first and second retraction inlets and first and second retraction outlets, wherein the first retraction inlet is directly connected to the high-pressure oil circuit, the second retraction inlet is connected to the oil tank, the first retraction outlet is respectively connected to the retraction chambers of a pair of opposing horizontal hydraulic push rods, and the second retraction outlet is respectively connected to the retraction chambers of another pair of opposing horizontal hydraulic push rods.

[0009] In one or more embodiments, the hydraulic control system is further configured to: in response to receiving a vibration control command in the horizontal X-axis direction, control the vertical servo solenoid valve to be in the off position, and control the retraction solenoid valve to connect the retraction chambers of a pair of horizontal hydraulic push rods arranged opposite each other in the horizontal Y-axis direction to the high-pressure oil circuit, connect the retraction chambers of a pair of horizontal hydraulic push rods arranged opposite each other in the horizontal X-axis direction to the oil tank, and control the first pressure relief solenoid valve, the second pressure relief solenoid valve, the first propulsion solenoid valve, and the second propulsion solenoid valve to connect the propulsion chambers of a pair of horizontal hydraulic push rods arranged opposite each other in the horizontal Y-axis direction to the corresponding oil tank, connect the propulsion chambers of a pair of horizontal hydraulic push rods arranged opposite each other in the horizontal X-axis direction to the corresponding servo outlets of the horizontal servo solenoid valve, and control the horizontal servo solenoid valve to switch the two pairs of servo inlets and servo outlets to reverse their conduction according to a preset strategy, so as to control the pair of horizontal hydraulic push rods arranged opposite each other in the horizontal X-axis direction to vibrate in the horizontal X-axis direction and drive the outer hammer to generate a transverse wave source.

[0010] In one or more embodiments, the hydraulic control system is further configured to: in response to receiving a vibration control command in the horizontal Y-axis direction, control the vertical servo solenoid valve to be in the off position, and control the retraction solenoid valve to connect the retraction chambers of a pair of horizontal hydraulic push rods arranged opposite each other in the horizontal X-axis direction to the high-pressure oil circuit, connect the retraction chambers of a pair of horizontal hydraulic push rods arranged opposite each other in the horizontal Y-axis direction to the oil tank, and control the first pressure relief solenoid valve, the second pressure relief solenoid valve, the first propulsion solenoid valve, and the second propulsion solenoid valve to connect the propulsion chambers of a pair of horizontal hydraulic push rods arranged opposite each other in the horizontal X-axis direction to the corresponding oil tank, connect the propulsion chambers of a pair of horizontal hydraulic push rods arranged opposite each other in the horizontal Y-axis direction to the corresponding servo outlets of the horizontal servo solenoid valve, and control the horizontal servo solenoid valve to switch the two pairs of servo inlets and servo outlets to reverse their conduction according to a preset strategy, so as to control the pair of horizontal hydraulic push rods arranged opposite each other in the horizontal Y-axis direction to vibrate in the horizontal Y-axis direction and drive the outer hammer to generate a transverse wave source.

[0011] In one or more embodiments, the hydraulic control system is further configured to: in response to receiving a vibration control command in the vertical Z-axis direction, control the horizontal servo solenoid valve to be in the off position, control the retraction solenoid valve to connect the retraction chambers of the four horizontal hydraulic push rods to the oil tank, control the first pressure relief solenoid valve, the second pressure relief solenoid valve, the first propulsion solenoid valve, and the second propulsion solenoid valve to connect the propulsion chambers of the four horizontal hydraulic push rods to the high-pressure oil circuit, and control the vertical servo solenoid valve to switch the two pairs of servo inlets and servo outlets according to a preset strategy to control the vertical hydraulic push rods to vibrate in the vertical Z-axis direction and drive the inner and outer hammers to generate longitudinal wave sources.

[0012] In one or more embodiments, the retraction chamber and the propulsion chamber of the horizontal hydraulic push rod are respectively disposed on both sides of the piston structure of the hydraulic push rod. When the high-pressure oil circuit is connected, the propulsion chamber is used to generate thrust to push the corresponding hydraulic push rod to extend toward the center of the inner hammer body. When the retraction chamber is connected to the high-pressure oil circuit, it is used to generate thrust to push the corresponding hydraulic push rod to retract in the direction away from the center of the inner hammer body.

[0013] In one or more embodiments, the thrust generated by the propulsion chamber when connected to the same high-pressure oil circuit is greater than the thrust generated by the retraction chamber.

[0014] The beneficial effects of the present invention include: the hydraulic control system of the present invention can control the three-component vibrator to generate transverse wave sources and longitudinal wave sources according to a preset strategy, and can ensure the rationality of the operation of each hydraulic push rod during the operation process without conflict. Attached Figure Description

[0015] 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 embodiments can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a three-dimensional structural diagram of the three-component vibrator of the present invention;

[0017] Figure 2 This is a front sectional view of the three-component vibrator of the present invention;

[0018] Figure 3 This is a top sectional view of the three-component vibrator of the present invention used to generate a longitudinal wave source.

[0019] Figure 4 This is a top sectional view of the three-component vibrator of the present invention used to generate a transverse wave source in the horizontal Y-axis direction.

[0020] Figure 5 This is a top sectional view of the three-component vibrator of the present invention used to generate a transverse wave source in the horizontal X-axis direction.

[0021] Figure 6 This is a schematic diagram of the working state of the first embodiment of the three-component vibrator hydraulic control system of the present invention;

[0022] Figure 7 This is a schematic diagram of the working state of the second embodiment of the three-component vibrator hydraulic control system of the present invention;

[0023] Figure 8 This is a schematic diagram of the working state of the third embodiment of the three-component vibrator hydraulic control system of the present invention.

[0024] The structures and their numbers in each view are as follows: Top cover 1, Column 2, Vibrating plate 3, Upper pressure plate 4, Outer hammer body 5, End cover 6, Inner hammer body 7, Vertical hydraulic push rod 8, Lower pressure plate 9, X-axis horizontal hydraulic push rod 10, Y-axis horizontal hydraulic push rod 11, Horizontal servo solenoid valve 12, First pressure relief solenoid valve 13, Second pressure relief solenoid valve 14, Retraction solenoid valve 15, First propulsion solenoid valve 16, Second propulsion solenoid valve 17, Vertical servo solenoid valve 18. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the present invention clearer, the embodiments of the present invention will be further described in detail below with reference to specific examples and the accompanying drawings.

[0026] It should be noted that all uses of "first" and "second" in the embodiments of the present invention are for the purpose of distinguishing two entities or parameters with the same name but different names. It is clear that "first" and "second" are only for the convenience of expression and should not be construed as limiting the embodiments of the present invention. Subsequent embodiments will not explain this in detail.

[0027] According to one aspect of the present invention, a three-component vibrator hydraulic control system is provided, comprising a three-component vibrator and a hydraulic control system. Figure 1 This is a three-dimensional structural diagram of the three-component vibrator of the present invention. Figure 1 As shown, the external frame of the three-component vibrator of the present invention includes an upper cover 1, a column 2, and a vibrating plate 3. A vertical hydraulic push rod is provided at the center of the frame to drive the hammer body to move vertically up and down to generate a longitudinal wave source. When a transverse wave source is required, the hammer body needs to be lowered onto the vibrating plate 3 and then vibrate on the horizontal plane to generate a transverse wave source.

[0028] Figure 2 This is a front sectional view of the three-component vibrator of the present invention. Figure 2 As shown, the hammer body of the three-component vibrator of the present invention comprises: an upper pressure plate 4, an outer hammer body 5, an end cap 6, an inner hammer body 7, a vertical hydraulic push rod 8, and a lower pressure plate 9. Figure 2 As shown, the inner and outer hammer bodies of the present invention are fixed by upper and lower pressure plates, and the outer hammer body 5 is sleeved on the outside of the inner hammer body 7 with a gap around the inner hammer body 7. Figure 2 As shown, linkage can only occur when the horizontal hydraulic push rod inside the outer hammer body 5 is pushed out by the corresponding hydraulic chamber and inserted into the interior of the inner hammer body 7. The end cap 6 is used to seal the hydraulic chamber.

[0029] More specifically, such as Figure 2 As shown, a piston structure is located in the middle of the vertical hydraulic push rod. The outer diameter of the piston structure is larger than the outer diameter of the piston rods connected to its two sides, thus dividing the hydraulic chamber into upper and lower parts. By setting oil circuits inside the hydraulic push rod to connect the two parts respectively, high-pressure oil can be injected into the upper hydraulic chamber to make the inner and outer hammers rise as a whole, and high-pressure oil can be injected into the lower hydraulic chamber to make the inner and outer hammers fall as a whole. Further details on the horizontal hydraulic push rod setup can be found in [link to documentation]. Figure 3 .

[0030] Figure 3 This is a top sectional view of the three-component vibrator of the present invention used to generate a longitudinal wave source. Figure 3 As shown, four horizontal hydraulic push rods are installed inside the four directions of the outer hammer body. When it is necessary to generate a longitudinal wave source, high-pressure oil will be injected into the outer thrust chamber of the four horizontal hydraulic push rods to generate thrust and push the four horizontal hydraulic push rods out so that they are inserted into the inner hammer body 7 respectively, thereby connecting the inner and outer hammer bodies into one.

[0031] Figure 4 This is a top sectional view of the three-component vibrator of the present invention used to generate a transverse wave source in the horizontal Y-axis direction. (See image.) Figure 4 As shown, the transverse seismic source is divided into a transverse wave source in the horizontal Y-axis direction and a transverse wave source in the horizontal X-axis direction. When it is necessary to generate a transverse wave source in the Y-axis direction, it is necessary to ensure that a pair of horizontal hydraulic push rods 10 (or X-axis horizontal hydraulic push rods) arranged opposite each other in the horizontal X-axis direction retract into the interior of the outer hammer body 5, and a pair of horizontal hydraulic push rods 11 (or Y-axis horizontal hydraulic push rods) arranged opposite each other in the Y-axis direction are inserted into the interior of the inner hammer body 7 and tightly abut against it. By synchronously controlling the Y-axis horizontal hydraulic push rods 11, the outer hammer body is driven to run in the Y-axis direction, thereby generating a transverse wave source.

[0032] Figure 5 This is a top sectional view of the three-component vibrator of the present invention used to generate a transverse wave source in the horizontal X-axis direction. Figure 4 The working process is similar to that described in the text. When it is necessary to generate a transverse wave source in the X-axis direction, it is necessary to ensure that the horizontal Y-axis hydraulic push rod 11 retracts into the interior of the outer hammer body 5, and the X-axis horizontal hydraulic push rod 10 is inserted into the interior of the inner hammer body 7 and tightly abuts against it. By synchronously controlling the X-axis horizontal hydraulic push rod 10, the outer hammer body is driven to run in the X-axis direction, thereby generating a transverse wave source.

[0033] For more details, please see Figures 3 to 5The horizontal hydraulic push rod also has a piston structure in the middle, dividing the hydraulic chamber into two parts (the side closer to the inner hammer 7 is the inner part, and the side farther from the inner hammer 7 is the outer part). When high-pressure oil is injected into the outer pushing chamber, the hydraulic push rod will extend; when high-pressure oil is injected into the inner retracting chamber, the hydraulic push rod will retract into the outer hammer 5. Figure 3-5 It can be seen that the contact area between the propulsion chamber and the hydraulic push rod is larger than that between the retraction chamber and the hydraulic push rod. Therefore, even if both are injected with high-pressure oil at the same pressure, the thrust generated by the propulsion chamber is still greater than that generated by the retraction chamber. It should be noted that under normal circumstances, the two will not be injected with high-pressure oil at the same time.

[0034] The hydraulic control system of the present invention includes: a high-pressure oil circuit, a low-pressure oil circuit, multiple solenoid valves, and oil tanks; wherein, the high-pressure oil circuit and the low-pressure oil circuit are configured to exchange pressure oil with the corresponding hydraulic chambers of the corresponding hydraulic push rods to provide power for the corresponding hydraulic push rods to contract and / or drive the inner and outer hammers; the multiple solenoid valves are respectively connected to the high-pressure oil circuit and the low-pressure oil circuit, and are configured to synchronously control the flow direction of pressure oil in the hydraulic chambers of the multiple hydraulic push rods; the multiple oil tanks are respectively connected to the corresponding solenoid valves, and are configured to receive pressure oil in the hydraulic chambers of the horizontal hydraulic push rods in the vertical direction of motion when the hydraulic control system controls the inner and outer hammers to vibrate in the horizontal X-axis or horizontal Y-axis direction, so as to minimize the pressure in the corresponding hydraulic chambers.

[0035] Figure 6 This is a schematic diagram illustrating the working state of the first embodiment of the three-component vibrator hydraulic control system of the present invention. Figure 6As shown, in the first embodiment of the hydraulic control system of the present invention, a plurality of solenoid valves respectively include: a horizontal servo solenoid valve 12, including first and second servo inlets and first and second servo outlets, wherein the first servo inlet is directly connected to the high-pressure oil circuit, and the second servo inlet is directly connected to the low-pressure oil circuit; a vertical servo solenoid valve 18, including third and fourth servo inlets and third and fourth servo outlets, wherein the third servo inlet is directly connected to the high-pressure oil circuit, the fourth servo inlet is directly connected to the low-pressure oil circuit, the third servo outlet is connected to the first propulsion chamber of the vertical hydraulic push rod, and the fourth servo outlet is connected to the second propulsion chamber of the vertical hydraulic push rod; a first propulsion solenoid valve 16, including first and second propulsion inlets and first and second propulsion outlets, wherein the first propulsion inlet is connected to the first servo outlet of the horizontal servo solenoid valve, and the first and second propulsion outlets are respectively connected to the propulsion chambers of two adjacent horizontal hydraulic push rods, configured to control the two adjacent horizontal hydraulic push rods to extend toward the center of the inner hammer body; a second propulsion solenoid valve 17, including third and fourth propulsion inlets and third and fourth propulsion outlets, wherein the third... The push-in inlet is connected to the second servo outlet of the horizontal servo solenoid valve, and the third and fourth push-in outlets are respectively connected to the push chambers of two adjacent horizontal hydraulic push rods, configured to control the two adjacent horizontal hydraulic push rods to extend towards the center of the inner hammer body; the first pressure relief solenoid valve 13 includes first and second pressure relief inlets and one pressure relief outlet, wherein the first pressure relief inlet is directly connected to the high-pressure oil circuit, the second pressure relief inlet is connected to the oil tank, and the pressure relief outlet is connected to the second push-in inlet of the first push-in solenoid valve; the second pressure relief solenoid valve 14 includes third and fourth pressure relief inlets and one pressure relief outlet, wherein the third pressure relief inlet is directly connected to the high-pressure oil circuit, the fourth pressure relief inlet is connected to the oil tank, and the pressure relief outlet is connected to the fourth push-in inlet of the second push-in solenoid valve; the retraction solenoid valve 15 includes two retraction inlets and two retraction outlets, wherein the first retraction inlets are directly connected to the high-pressure oil circuit, the second retraction inlets are connected to the oil tank, the first retraction outlets are respectively connected to the retraction chambers of a pair of oppositely arranged horizontal hydraulic push rods, and the second retraction outlets are respectively connected to the retraction chambers of another pair of oppositely arranged horizontal hydraulic push rods.

[0036] More specifically, the horizontal servo solenoid valve 12 and the vertical servo solenoid valve 18 are three-position four-way valves, meaning they have four ports and three working positions. From left to right, the working positions are: reversing the connection between the servo inlet and servo outlet, cutting off the connection between the servo inlet and servo outlet, and connecting the opposite servo inlet and servo outlet. The first propulsion solenoid valve 16, the second propulsion solenoid valve 17, and the retraction solenoid valve 15 are also three-position four-way valves. The first propulsion solenoid valve 16, from left to right, has the following working positions: reversing the connection between the two propulsion inlets and two propulsion outlets, connecting the second propulsion inlet and two propulsion outlets, and connecting the opposite propulsion inlet and propulsion outlet; the second propulsion solenoid valve 16, the third propulsion solenoid valve 17, and the fourth propulsion solenoid valve 18. The working positions of the second propulsion solenoid valve 17 from left to right are as follows: connecting the opposing propulsion inlet and the propulsion outlet, connecting the fourth propulsion inlet and the two propulsion outlets, and reversing to connect the two propulsion inlets and the two propulsion outlets; the working positions of the retraction solenoid valve 15 from left to right are as follows: reversing to connect the two retraction inlets and the two retraction outlets, connecting the second push retraction inlet and the two retraction outlets, and connecting the opposing retraction inlet and the retraction outlet; the first pressure relief solenoid valve and the second pressure relief solenoid valve are two-position three-way valves, that is, they have three interfaces and two working positions, wherein, from left to right, the working positions are as follows: connecting the opposing pressure relief inlet and the pressure relief outlet, and reversing to connect the pressure relief inlet and the pressure relief outlet.

[0037] It should be noted that the terms "inlet" and "outlet" in this article are not intended to limit the direction of liquid flow; they are only used to indicate the hierarchical relationship between solenoid valves or between a solenoid valve and high / low pressure oil circuits. That is, the inlet is used to connect to the outlet of the upper-level solenoid valve or the high / low pressure oil circuit, and the outlet is used to connect to the inlet of the lower-level solenoid valve or the high / low pressure oil circuit. Furthermore, the pressure within the oil tank in this invention is negligible, thereby ensuring the reliability of each horizontal hydraulic push rod after retraction.

[0038] In one specific embodiment, the process of controlling the generation of a transverse wave source along the X-axis according to the present invention includes: in response to receiving a vibration control command in the horizontal X-axis direction, controlling the vertical servo solenoid valve to be in the off position and not working, and controlling the retraction solenoid valve to connect the retraction chambers of a pair of horizontal hydraulic push rods arranged opposite each other in the horizontal Y-axis direction to the high-pressure oil circuit, connecting the retraction chambers of the pair of horizontal hydraulic push rods arranged opposite each other in the horizontal X-axis direction to the oil tank, and controlling the first pressure relief solenoid valve, the second pressure relief solenoid valve, the first propulsion solenoid valve, and the second propulsion solenoid valve to connect the propulsion chambers of the pair of horizontal hydraulic push rods arranged opposite each other in the horizontal Y-axis direction to the corresponding oil tank, connecting the propulsion chambers of the pair of horizontal hydraulic push rods arranged opposite each other in the horizontal X-axis direction to the corresponding servo outlets of the horizontal servo solenoid valves respectively, and controlling the horizontal servo solenoid valve to switch the two pairs of servo inlets and servo outlets to reverse their conduction according to a preset strategy, so as to control the pair of horizontal hydraulic push rods arranged opposite each other in the horizontal X-axis direction to vibrate in the horizontal X-axis direction and drive the outer hammer to generate a transverse wave source.

[0039] More specifically, the actions of each solenoid valve include: Please refer to... Figure 6 The vertical servo solenoid valve 18 is in the neutral position and not working. The retraction solenoid valve 15 is in the left position, so that the retraction chambers of the two horizontal hydraulic push rods 11 in the horizontal Y-axis direction are connected to high-pressure oil, and the retraction chambers of the two horizontal hydraulic push rods 10 in the X-axis direction are connected to the oil tank. The electromagnet of the first pressure relief solenoid valve 13 is energized and is in the left position, and the first push solenoid valve 16 is in the right position, so that the B port of the first push solenoid valve 16 is connected to the A port of the horizontal servo solenoid valve 12, and the A port of the first push solenoid valve 16 is connected to the oil tank through the T port of the first pressure relief solenoid valve 13. At the same time, the second pressure relief solenoid valve 14 is energized and is in the left position, and the second push solenoid valve 17 is in the left position, so that the A port of the second push solenoid valve 17 is connected to the B port of the horizontal servo solenoid valve 12, and the B port of the second push solenoid valve 17 is connected to the oil tank through the T port of the second pressure relief solenoid valve 14.

[0040] The operation of the aforementioned solenoid valves causes the retraction chambers of the two Y-axis horizontal hydraulic push rods 11 to retract into the outer hammer body 5 via pressurized oil, and also connects the propulsion chambers of the two horizontal hydraulic push rods 11 to the oil tank to ensure the reliability of the retraction state. This results in a certain gap between the inner hammer body 7 and the outer hammer body 5 in the Y-axis direction. Simultaneously, the propulsion chambers of the two X-axis horizontal hydraulic push rods 10 are connected to ports A and B of the horizontal servo solenoid valve 12, respectively, and the retraction chambers of the horizontal hydraulic push rods 10 are connected to the oil tank via port T of the retraction solenoid valve 15. When the horizontal servo solenoid valve 12 switches back and forth between the left and right work positions, the two horizontal hydraulic push rods 10 will extend and push into the inner hammer body 7 under the action of pressurized oil. Driven by the horizontal hydraulic push rods 10, the outer hammer body moves in the X-axis direction, achieving horizontal X-axis vibration.

[0041] In another specific embodiment, please refer to Figure 7 , Figure 7This is a schematic diagram of the working state of the second embodiment of the three-component vibrator hydraulic control system of the present invention. The process of controlling the generation of the transverse wave source in the Y-axis direction of the present invention includes: in response to receiving a vibration control command in the horizontal Y-axis direction, controlling the vertical servo solenoid valve to be in the off position and not working, controlling the retraction solenoid valve to connect the retraction chamber of a pair of horizontal hydraulic push rods arranged opposite each other in the horizontal X-axis direction to the high-pressure oil circuit, connecting the retraction chamber of a pair of horizontal hydraulic push rods arranged opposite each other in the horizontal Y-axis direction to the oil tank, controlling the first pressure relief solenoid valve, the second pressure relief solenoid valve, the first propulsion solenoid valve and the second propulsion solenoid valve to connect the propulsion chamber of a pair of horizontal hydraulic push rods arranged opposite each other in the horizontal X-axis direction to the corresponding oil tank, connecting the propulsion chamber of a pair of horizontal hydraulic push rods arranged opposite each other in the horizontal Y-axis direction to the corresponding servo outlet of the horizontal servo solenoid valve, and controlling the horizontal servo solenoid valve to switch the two pairs of servo inlets and servo outlets according to a preset strategy to control the pair of horizontal hydraulic push rods arranged opposite each other in the horizontal Y-axis direction to vibrate in the horizontal Y-axis direction and drive the outer hammer to generate a transverse wave source.

[0042] More specifically, the actions of each solenoid valve include: the vertical servo solenoid valve 18 is in the neutral position and not working; the retraction solenoid valve 15 is in the right position, connecting the retraction chamber of the X-axis horizontal hydraulic push rod 10 to pressurized oil, and the retraction chamber of the Y-axis horizontal hydraulic push rod 10 is connected to the oil tank; the first pressure relief solenoid valve 13 is energized and in the left position, the first push solenoid valve 16 is in the left position, connecting port A of the first push solenoid valve 16 to port A of the horizontal servo solenoid valve 12, and port B of the first push solenoid valve 16 is connected to the oil tank via port T of the first pressure relief solenoid valve 13; simultaneously, solenoid valve 14 is energized and in the left position, the second push solenoid valve 17 is in the right position, connecting port B of the second push solenoid valve 17 to port B of the horizontal servo solenoid valve 12, and port A of the second push solenoid valve 17 is connected to the oil tank via port T of the second pressure relief solenoid valve 14. This allows the retraction chambers of the two X-axis horizontal hydraulic push rods 10 to be connected to pressurized oil, and the propulsion chambers of the two horizontal hydraulic push rods 10 to be connected to the oil tank. The two X-axis horizontal hydraulic push rods 10 retract under the action of pressurized oil, creating a certain gap between the inner hammer body 7 and the outer hammer body 5 in the X-axis direction. The propulsion chambers of the two Y-axis horizontal hydraulic push rods 11 are respectively connected to ports A and B of the horizontal servo solenoid valve 12, and the retraction chambers of the two Y-axis horizontal hydraulic push rods 11 are connected to the oil tank via port T of the retraction solenoid valve 15. Through the operation of the valves described above, the two Y-axis horizontal hydraulic push rods 11 extend and push into the inner hammer body 7. Thus, under the control of the horizontal servo solenoid valve 12, the outer hammer body 5 achieves vibration in the horizontal Y direction.

[0043] In another embodiment, please refer to Figure 8 , Figure 8This is a schematic diagram of the working state of the third embodiment of the three-component vibrator hydraulic control system of the present invention. The process of controlling the generation of longitudinal vibration source in the Z-axis direction of the present invention includes: in response to receiving a vibration control command in the vertical Z-axis direction, controlling the horizontal servo solenoid valve to be in the off position and not working, controlling the retraction solenoid valve to connect the retraction chamber of the four horizontal hydraulic push rods to the oil tank, controlling the first pressure relief solenoid valve, the second pressure relief solenoid valve, the first propulsion solenoid valve and the second propulsion solenoid valve to connect the propulsion chamber of the four horizontal hydraulic push rods to the high-pressure oil circuit, and controlling the vertical servo solenoid valve to switch the two pairs of servo inlets and servo outlets according to a preset strategy to control the vertical hydraulic push rod to vibrate in the vertical Z-axis direction and drive the inner and outer hammers to generate longitudinal wave source.

[0044] More specifically, the actions of each solenoid valve include: controlling the horizontal servo solenoid valve 12 to be in the neutral position and not working; controlling the retraction solenoid valves 13 and 14 to be in the right working position; controlling the propulsion solenoid valves 16 and 17 to be in the neutral position; thereby enabling the propulsion chambers of the four horizontal hydraulic push rods to be connected to the high-pressure oil circuit through the P port of the retraction solenoid valves 13 and 14, so that all four horizontal hydraulic push rods extend and push into the inner hammer body 7, making the outer hammer body 5 and the inner hammer body 7 tightly combined into one. Then, under the control of the vertical servo solenoid valve 18, the inner and outer hammer bodies move together along the Z-axis direction, forming vertical vibration.

[0045] The hydraulic control system of this invention can control the three-component vibrator to generate transverse wave sources and longitudinal wave sources according to a preset strategy, and can ensure the rationality of the operation of each hydraulic push rod during operation without conflict.

[0046] The above are exemplary embodiments disclosed in this invention. However, it should be noted that various changes and modifications can be made without departing from the scope of the embodiments of this invention as defined by the claims. The functions, steps, and / or actions of the methods according to the disclosed embodiments described herein do not need to be performed in any particular order. Furthermore, although the elements disclosed in the embodiments of this invention may be described or claimed individually, they may be understood as multiple unless explicitly limited to a singular number.

[0047] It should be understood that, as used herein, the singular form “a” is intended to include the plural form as well, unless the context clearly supports an exception. It should also be understood that, as used herein, “and / or” refers to any and all possible combinations of one or more of the associated listed items.

[0048] The embodiment numbers disclosed in the above embodiments of the present invention are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0049] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the invention (including the claims) is limited to these examples. Within the framework of the invention, technical features of the above embodiments or different embodiments can be combined, and many other variations of different aspects of the invention exist, which are not provided in the details for the sake of brevity. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the invention should be included within the protection scope of the invention.

Claims

1. A three-component hydraulic control system for a vibrator, characterized in that, include: The three-component vibrator includes an inner hammer body and an outer hammer body. The outer hammer body is sleeved on the outside of the inner hammer body and there is a gap between the outer hammer body and the inner hammer body. Four horizontal hydraulic push rods are arranged opposite each other in four directions on the outer hammer body. The four horizontal hydraulic push rods point horizontally to the center of the inner hammer body. A vertical hydraulic push rod is arranged in the vertical direction at the center of the inner hammer body. The hydraulic control system includes a high-pressure oil circuit, a low-pressure oil circuit, multiple solenoid valves, and an oil tank. The high-pressure and low-pressure oil circuits are fluidly connected to the hydraulic chambers of the corresponding hydraulic push rods to provide power for the push rods to contract and / or drive the inner and outer hammers. The multiple solenoid valves are respectively connected to the high-pressure and low-pressure oil circuits to synchronously control the flow direction of the pressurized oil in the hydraulic chambers of the multiple hydraulic push rods. The oil tank is connected to the interfaces of the corresponding solenoid valves. The plurality of solenoid valves include: a horizontal servo solenoid valve, comprising first and second servo inlets and first and second servo outlets, wherein the first servo inlet is directly connected to the high-pressure oil circuit, and the second servo inlet is directly connected to the low-pressure oil circuit; a vertical servo solenoid valve, comprising third and fourth servo inlets and third and fourth servo outlets, wherein the third servo inlet is directly connected to the high-pressure oil circuit, the fourth servo inlet is directly connected to the low-pressure oil circuit, the third servo outlet is connected to the first propulsion chamber of the vertical hydraulic push rod, and the fourth servo outlet is connected to the second propulsion chamber of the vertical hydraulic push rod; a first propulsion solenoid valve, comprising first and second propulsion inlets and first and second propulsion outlets, wherein the first propulsion inlet is connected to the first servo outlet of the horizontal servo solenoid valve, and the first and second propulsion outlets are respectively connected to the propulsion chambers of two adjacent horizontal hydraulic push rods, configured to control the two adjacent horizontal hydraulic push rods to extend toward the center of the inner hammer body; and a second propulsion solenoid valve, comprising third and fourth propulsion inlets and third and fourth propulsion outlets, wherein the third propulsion inlet is connected to the first servo outlet of the horizontal servo solenoid valve, and the second propulsion outlet is connected to the propulsion chambers of two adjacent horizontal hydraulic push rods, configured to control the two adjacent horizontal hydraulic push rods to extend toward the center of the inner hammer body; and a second propulsion solenoid valve, comprising third and fourth propulsion inlets and third and fourth propulsion outlets, wherein the third propulsion inlet is connected to the first servo outlet of the horizontal servo solenoid valve, and the third propulsion outlet is connected to the first propulsion chamber of the vertical hydraulic push rod, and the fourth propulsion outlet is connected to the second propulsion chamber of the vertical hydraulic push rod; a first propulsion so The second servo outlet of the solenoid valve is connected, and the third and fourth propulsion outlets are respectively connected to the propulsion chambers of two adjacent horizontal hydraulic push rods, configured to control the two adjacent horizontal hydraulic push rods to extend toward the center of the inner hammer body; the first pressure relief solenoid valve includes first and second pressure relief inlets and a pressure relief outlet, wherein the first pressure relief inlet is directly connected to the high-pressure oil circuit, the second pressure relief inlet is connected to the oil tank, and the pressure relief outlet is connected to the second propulsion inlet of the first propulsion solenoid valve; the second pressure relief solenoid valve includes third and fourth pressure relief inlets and a pressure relief outlet, wherein the third pressure relief inlet is directly connected to the high-pressure oil circuit, the fourth pressure relief inlet is connected to the oil tank, and the pressure relief outlet is connected to the fourth propulsion inlet of the second propulsion solenoid valve; the retraction solenoid valve includes first and second retraction inlets and first and second retraction outlets, wherein the first retraction inlet is directly connected to the high-pressure oil circuit, the second retraction inlet is connected to the oil tank, the first retraction outlet is respectively connected to the retraction chambers of a pair of opposing horizontal hydraulic push rods, and the second retraction outlet is respectively connected to the retraction chambers of another pair of opposing horizontal hydraulic push rods; The hydraulic control system is configured to control the four horizontal hydraulic push rods, such that a pair of horizontal hydraulic push rods on the horizontal X-axis or horizontal Y-axis cross the gap and insert into the inner hammer body to connect the inner hammer body and the outer hammer body, and cause the outer hammer body to vibrate in the horizontal X-axis or horizontal Y-axis direction under the drive of the oppositely arranged pair of horizontal hydraulic push rods to generate a transverse wave source. The hydraulic control system is also configured to simultaneously control the four horizontal hydraulic push rods and the vertical hydraulic push rod, such that the four horizontal hydraulic push rods cross the gap and insert into the inner hammer body to connect the inner hammer body and the outer hammer body, and cause the inner hammer body and the outer hammer body to vibrate in the Z-axis direction under the drive of the vertical hydraulic push rod to generate a longitudinal wave source. The oil tank is configured to receive pressurized oil in the hydraulic chamber of the horizontal hydraulic push rod in the vertical direction of motion when the hydraulic control system controls the outer hammer body to vibrate in the horizontal X-axis or horizontal Y-axis direction, so as to reduce the pressure in the corresponding hydraulic chamber.

2. The three-component vibrator hydraulic control system according to claim 1, characterized in that, The hydraulic control system is further configured to: In response to receiving a vibration control command in the horizontal X-axis direction, the vertical servo solenoid valve is controlled to be in the off position, and the retraction solenoid valve is controlled to connect the retraction chambers of a pair of horizontally arranged hydraulic push rods in the horizontal Y-axis direction to the high-pressure oil circuit, and to connect the retraction chambers of a pair of horizontally arranged hydraulic push rods in the horizontal X-axis direction to the oil tank. The first pressure relief solenoid valve, the second pressure relief solenoid valve, the first propulsion solenoid valve, and the second propulsion solenoid valve are controlled to connect the propulsion chambers of a pair of horizontally arranged hydraulic push rods in the horizontal Y-axis direction to the oil tank, and to connect the propulsion chambers of a pair of horizontally arranged hydraulic push rods in the horizontal X-axis direction to the corresponding servo outlets of the horizontal servo solenoid valves. The horizontal servo solenoid valves are controlled to switch the two pairs of servo inlets and servo outlets according to a preset strategy to control the pair of horizontally arranged hydraulic push rods in the horizontal X-axis direction to vibrate in the horizontal X-axis direction and drive the outer hammer to generate a transverse wave source.

3. The three-component vibrator hydraulic control system according to claim 1, characterized in that, The hydraulic control system is further configured to: In response to receiving a vibration control command in the horizontal Y-axis direction, the vertical servo solenoid valve is controlled to be in the off position, and the retraction solenoid valve is controlled to connect the retraction chambers of a pair of horizontally arranged hydraulic push rods in the horizontal X-axis direction to the high-pressure oil circuit, and to connect the retraction chambers of a pair of horizontally arranged hydraulic push rods in the horizontal Y-axis direction to the oil tank. The first pressure relief solenoid valve, the second pressure relief solenoid valve, the first propulsion solenoid valve, and the second propulsion solenoid valve are controlled to connect the propulsion chambers of a pair of horizontally arranged hydraulic push rods in the horizontal X-axis direction to the oil tank, and to connect the propulsion chambers of a pair of horizontally arranged hydraulic push rods in the horizontal Y-axis direction to the corresponding servo outlets of the horizontal servo solenoid valves. The horizontal servo solenoid valves are controlled to switch the two pairs of servo inlets and servo outlets according to a preset strategy to control the pair of horizontally arranged hydraulic push rods in the horizontal Y-axis direction to vibrate in the horizontal Y-axis direction and drive the outer hammer to generate a transverse wave source.

4. The three-component vibrator hydraulic control system according to claim 1, characterized in that, The hydraulic control system is further configured to: In response to receiving a vibration control command in the vertical Z-axis direction, the horizontal servo solenoid valve is controlled to be in the off position, and the retraction solenoid valve is controlled to connect the retraction chambers of the four horizontal hydraulic push rods to the oil tank. The first pressure relief solenoid valve, the second pressure relief solenoid valve, the first propulsion solenoid valve, and the second propulsion solenoid valve are controlled to connect the propulsion chambers of the four horizontal hydraulic push rods to the high-pressure oil circuit. The vertical servo solenoid valve is controlled to switch the two pairs of servo inlets and servo outlets according to a preset strategy to control the vertical hydraulic push rods to vibrate in the vertical Z-axis direction and drive the inner and outer hammers to generate longitudinal wave sources.

5. The three-component vibrator hydraulic control system according to any one of claims 2-4, characterized in that, The retraction chamber and the propulsion chamber of the horizontal hydraulic push rod are respectively disposed on both sides of the piston structure of the hydraulic push rod. When the high-pressure oil circuit is connected, the propulsion chamber is used to generate thrust to push the corresponding hydraulic push rod to extend toward the center of the inner hammer body. When the retraction chamber is connected to the high-pressure oil circuit, it is used to generate thrust to push the corresponding hydraulic push rod to retract away from the center of the inner hammer body.

6. The three-component vibrator hydraulic control system according to claim 5, characterized in that, The thrust generated by the propulsion chamber when connected to the same high-pressure oil circuit is greater than the thrust generated by the retraction chamber.

Images