A rotary steering hydraulic test system

Abstract

The present invention relates to a rotary steering hydraulic test system, which relates to the technical field of pressure testing. Through the cooperation of the base mechanism and the tilting mechanism, the test cylinder assembly can be tilted at various angles. Furthermore, the device can detect the output pressure of the hydraulic control system in the tilted state, making the detection of the device no longer single, avoiding defective products passing through, and improving the finished product effect. Through the cooperation of the tilting mechanism and the storage mechanism, the cylinder in the tilting mechanism is used to provide power for the rotation of the first bidirectional screw in the storage mechanism, causing changes in the mechanisms in the storage mechanism and opening the water pipe port, so that the cleaning agent can be fed into the test cylinder assembly. By using the cleaning agent to cooperate with the operation of the hydraulic test system to clean it, the residual hydraulic oil can be removed. Furthermore, it makes it simple to remove the hydraulic control system, and also facilitates its transportation and subsequent installation. At the same time, the power for the transformation of the storage mechanism comes from the base mechanism and the tilting mechanism, making the structure of the storage mechanism simpler.

Description

Technical Field

[0001] The present invention relates to the technical field of pressure testing, and particularly relates to a rotary steerable hydraulic testing system. Background Art

[0002] Rotary steerable drilling technology is a technology for guiding drilling under the condition that the drill string rotates fully. A controllable bias stabilizer or a rotary steerable tool that can control the lateral force (steering force) of the drill bit is installed above the drill bit, and a complete rotary steerable drilling control system is equipped to regulate the wellbore trajectory when the drill string rotates and drills.

[0003] At present, rotary steerable tools have become the key technologies restricting the technical fields such as deep oil and gas exploitation and shale gas exploitation in China. Among them, the hydraulic control system of rotary steerable tools is the core mechanism of rotary steerable tools. The control accuracy and reliability of the hydraulic control system directly determine the performance and reliability of rotary steerable tools. In order to promote the rapid development of rotary steerable tools, a testing device for the hydraulic control system of rotary steerable tools is urgently needed.

[0004] The patent with the publication number CN109854569A discloses a testing device for the hydraulic control system of a rotary steerable tool. This application can test the performance indicators of the overall hydraulic control system. The test results are close to the actual working conditions, accurate and reliable. Moreover, the structure is simple, easy to use, time-saving and labor-saving, and the test efficiency is high, providing a testing means for the real market application of the hydraulic control system.

[0005] However, the above-mentioned prior art has the following technical defects:

[0006] Since the hydraulic control system is installed in the rotary steerable tool, when the drill bit turns, it will also drive the rotary steerable tool to tilt, causing the hydraulic control system to tilt. However, this device only detects the output pressure of the hydraulic control system in the horizontal state and does not detect the output pressure of the tilted hydraulic control system. The test of the hydraulic control system is relatively single, and defective products may pass through the inspection, reducing the product qualification rate.

[0007] Due to the adhesiveness of the hydraulic oil, some hydraulic oil will adhere to the hydraulic control system. When taking it out, because the surface of the hydraulic control system contains hydraulic oil, it is not conducive for the staff to take it out of the test cylinder assembly, which will cause difficulties in taking out the hydraulic control system, and hydraulic oil may drip in the workshop during the taking-out process, causing pollution to the workshop.

[0008] In summary, there is still room for improvement in the prior art in terms of testing the hydraulic control system and reducing the difficulty of taking out the hydraulic control system from the test cylinder. Therefore, it is necessary to develop a device that can tilt the hydraulic control system and detect it and clean the hydraulic control system in the cylinder. Summary of the Invention

[0009] In order to solve the above problems, the present application provides a rotary guide hydraulic test system, which adopts the following technical solutions:

[0010] It comprises a test cylinder assembly, and a cross-shaped four-way component is installed at the pressure measuring port of the test cylinder assembly.

[0011] A tilting mechanism is provided on the side of the test cylinder assembly, and the tilting mechanism includes two symmetrically arranged vertical plates, a fixed seat connected to the test cylinder assembly is provided on one side of the vertical plate, two deflection rods are rotatably installed in the cavity of the fixed seat, a group of strip grooves are provided at both ends of the deflection rods, two corresponding sliders are slidably provided in each group of two strip grooves, a 凵-shaped piece is commonly installed at the ends of the two corresponding sliders, and a moving block is commonly installed at the two middle 凵-shaped pieces, an annular seat is installed on the side of the vertical plate, and a plurality of evenly distributed pin holes are provided on the surface of the annular seat in a circular shape, and pins extending into the two pin holes are installed on the sides of the two 凵-shaped pieces.

[0012] A rotating tube passing through the vertical plate on the same side is installed at the center of the side of the fixed seat, a deflection gear is installed at the end of the rotating tube, a deflection rack is slidably provided on one side of the deflection gear, and an axis rod passing through the rotating tube and connected to the deflection rack is installed on the side of the moving block.

[0013] Preferably, a C-shaped seat connected thereto is slidably provided on the side surface of the deflection rack, and the sliding direction of the C-shaped seat is perpendicular to the sliding direction of the deflection rack.

[0014] Preferably, a storage mechanism is provided on one side of the tilting mechanism, and the storage mechanism comprises a storage box.

[0015] Preferably, two partitions are symmetrically installed inside the storage box, and the two partitions divide the inner cavity of the storage box into a water cavity, an oil cavity and a waste liquid cavity in sequence from front to back.

[0016] Preferably, two dispatching seats are symmetrically installed on the upper side of the storage box, and baffles adapted thereto are slidably arranged in the cavity of the dispatching seats, and round rods are installed on the sides of the baffles.

[0017] Preferably, a first bidirectional screw is rotatably mounted on the upper side of the storage box between the two dispatching seats, and first thread seats are provided on both threads of the first bidirectional screw.

[0018] Preferably, the end of the round rod extends to the outside of the dispatching seat and is installed with a mounting plate, and connecting rods are rotatably installed on both sides of the first threaded seat, and the end of the connecting rod is rotatably connected to the mounting plate on the same side.

[0019] Preferably, a rotating gear is installed at one end of the first bidirectional screw, and a rotating rack meshing with the rotating gear and connected to the deflection rack on the same side is arranged on the side of the rotating gear.

[0020] Preferably, an input pipe communicating with one scheduling seat is installed at the oil injection port of the test cylinder assembly, and an output pipe communicating with another scheduling seat is installed at the oil outlet of the test cylinder assembly.

[0021] In summary, the present application includes at least one of the following beneficial technical effects:

[0022] First, through the cooperation of the base mechanism and the tilting mechanism, the test cylinder assembly can be tilted at various angles, and then the device can detect the output pressure of the hydraulic control system in the tilted state, making the detection of the device no longer single, improving the detection effect, preventing defective products from passing through, improving the finished product effect. At the same time, when the tilting mechanism is not rotating, the test cylinder assembly is fixed by inserting a pin into the jack, and the deflection rack and the deflection gear are not meshed, avoiding the situation that the weight of the test cylinder acts on the meshing teeth of the deflection rack and the deflection gear for a long time and causing damage, and prolonging the service life of the device.

[0023] Second, through the cooperation of the tilting mechanism and the storage mechanism, the cylinder in the tilting mechanism provides power for the rotation of the first bidirectional screw in the storage mechanism, causing changes in the mechanism in the storage mechanism, opening the water pipe port, and then cleaning agent can be sent into the test cylinder assembly. The cleaning agent is used in cooperation with the hydraulic test system to clean it, removing the residual hydraulic oil, making it simple to remove the hydraulic control system, facilitating its transportation and subsequent installation, and protecting the workshop environment. At the same time, the power for the transformation of the storage mechanism comes from the base mechanism and the tilting mechanism, without the need to add additional power electrical appliances, making the structure of the storage mechanism simpler, with low manufacturing cost, not easily damaged, and long service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention will be further described below with reference to the drawings and embodiments.

[0025] Figure 1 is a schematic structural diagram of the present invention.

[0026] Figure 2 is a schematic structural diagram of the test component of the present invention.

[0027] Figure 3 is a schematic structural diagram of the base mechanism of the present invention.

[0028] Figure 4 is a schematic structural diagram of the tilting mechanism of the present invention.

[0029] Figure 5 is a schematic internal structural diagram of the tilting mechanism of the present invention.

[0030] Figure 6 It is a schematic diagram of the main structure of the tilting mechanism of the present invention.

[0031] Figure 7 It is a side view of the present invention.

[0032] Figure 8 It is a schematic diagram of the structure of the storage mechanism of the present invention.

[0033] Figure 9 It is a sectional view of the storage mechanism of the present invention.

[0034] Figure 10 It is Figure 9 an enlarged view of part A in

[0035] Figure 11 It is a side view of the storage mechanism of the present invention.

[0036] Figure 12 It is a schematic diagram of the structure of the connecting component of the present invention.

[0037] Figure 13 It is a schematic diagram of the structure of the recycling mechanism of the present invention.

[0038] Figure 14 It is a sectional view of the recycling mechanism of the present invention.

[0039] In the figure: 1. Test cylinder assembly; 2. Tilt mechanism; 201. Vertical plate; 202. Fixed seat; 203. Ring seat; 204. Pin hole; 205. Deflection rod; 206. Moving block; 207. Strip groove; 208. Slide block; 209. U-shaped part; 210. Plug pin; 211. Rotating tube; 212. Deflection gear; 213. Shaft rod; 214. Deflection rack; 215. Installation slide rod; 216. Installation slide block; 217. Connecting plate; 218. Moving slide rod; 219. Moving slide block; 220. Cylinder; 221. U-shaped seat; 3. Storage mechanism; 301. Storage box; 302. Partition board; 303. First bidirectional screw; 304. First thread seat; 305. Rotating gear; 306. Rotating rack; 307. Scheduling seat; 308. Baffle; 309. Round rod; 310. Installation plate; 311. Water pipe; 312. Oil pipe; 313. Return oil pipe; 314. Return sewage pipe; 315. Water pump; 316. Oil pump; 317. Tap; 318. Liquid inlet pipe; 319. Connecting rod; 4. Base mechanism; 401. Bottom plate; 402. Moving groove; 403. Second bidirectional screw; 404. Driving motor; 405. Second thread seat; 406. Limiting rod; 407. Limiting block; 5. Recycling mechanism; 501. U-shaped frame; 502. Cylinder; 503. Piston; 504. O-shaped frame; 505. Round pipe; 506. Rotating rod; 507. Rotating motor; 508. Through hole; 509. Electric push rod; 7. Input pipe; 8. Output pipe; 9. Four-way assembly; 10. Pressure detection assembly; 11. Pressure gauge; 12. L-shaped plate; 13. Clamping block; 14. Cross bar; 15. Slide seat; 16. Card slot. Detailed implementation mode

[0040] The following combines the attached Figure 1 - Figure 14 The embodiments of the present invention will be described in detail.

[0041] The embodiment of the present application discloses a rotary steering hydraulic test system. By cooperating with the base mechanism and the tilt mechanism, the test cylinder assembly can be tilted at various angles. Furthermore, the device can detect the output pressure of the hydraulic control system in the tilted state, making the detection of the device not single, improving the detection effect, preventing defective products from passing through, and improving the finished product effect.

[0042] Embodiment 1:

[0043] As Figure 1 and Figure 2As shown in the figure, it includes a test cylinder assembly 1. A cross-shaped four-way component 9 is installed at the pressure measuring port of the test cylinder assembly 1. Pressure detection components 10 and pressure gauges 11 are respectively installed at the ports of the four-way component 9. A hydraulic control system (including a motor component, a plunger pump component, and a control valve component) is installed inside the test cylinder assembly 1. The pressure detection component 10 and the pressure gauge 11 detect the output pressure of the hydraulic control system.

[0044] As Figure 1 and Figure 3 shown in the figure, a base mechanism 4 is provided below the test cylinder assembly 1. The base mechanism 4 includes a base plate 401. Two moving grooves 402 are symmetrically opened on the upper side of the base plate 401. A second bidirectional screw 403 is rotatably installed in one of the moving grooves 402, and a limiting rod 406 is installed in the other moving groove 402. A driving motor 404 with its driving end fixedly connected to the end of the second bidirectional screw 403 is installed on the side of the base plate 401. The base plate 401 can support other mechanisms in the device. Power on the driving motor 404 to make it operate. The running driving motor 404 drives the second bidirectional screw 403 connected to it to rotate.

[0045] As Figure 3 shown in the figure, second threaded seats 405 slidably connected to the moving grooves 402 are arranged on both threads of the second bidirectional screw 403. A limiting block 407 corresponding to each second threaded seat 405 is slidably installed on one side of the limiting rod 406. When the driving motor 404 rotates forward, it can drive the two second threaded seats 405 on it to move away from each other. When the driving motor 404 rotates in reverse, it can drive the two second threaded seats 405 on it to move closer to each other.

[0046] As Figure 1 and Figure 4 shown in the figure, an inclination mechanism 2 is provided on the side of the test cylinder assembly 1. The inclination mechanism 2 includes two vertical plates 201 symmetrically arranged and fixedly connected to the base plate 401 at the lower ends. A fixed seat 202 connected to the test cylinder assembly 1 is arranged on one side of the vertical plate 201. The test cylinder assembly 1 is installed on the vertical plate 201 by using the two fixed seats 202.

[0047] As Figure 5 and Figure 6 shown in the figure, two deflection rods 205 are rotatably installed in the cavity of the fixed seat 202. A set of strip-shaped grooves 207 are opened at both ends of the deflection rod 205. Two corresponding sliders 208 are slidably arranged in each set of two strip-shaped grooves 207. A U-shaped part 209 is jointly installed at the ends of the two corresponding sliders 208. A moving block 206 is jointly installed on the middle two U-shaped parts 209. When the moving block 206 moves, it will drive the two deflection rods 205 to deflect around their rotation connection points through the corresponding U-shaped parts 209 and sliders 208, thereby driving the other two U-shaped parts 209 to move.

[0048] like Figure 4 and Figure 5 As shown, an annular seat 203 is installed on the side of the vertical plate 201. The surface of the annular seat 203 is circular and has a plurality of evenly distributed pin holes 204. The sides of the two U-shaped members 209 are installed with latches 210 extending into the two pin holes 204. The latches 210 are inserted into the pin holes 204, and the test cylinder assembly 1 is fixed on the annular seat 203 through the two fixing seats 202. When the two U-shaped members 209 move, the latches 210 will also be driven to move.

[0049] like Figure 5 As shown, a rotating tube 211 penetrating the vertical plate 201 on the same side is installed at the center of the side of the fixing seat 202, and a deflection gear 212 is installed at the end of the rotating tube 211. A deflection rack 214 is provided on one side of the deflection gear 212. After the deflection rack 214 is moved horizontally to engage with the deflection gear 212, the deflection rack 214 is moved longitudinally to drive the deflection gear 212 to rotate, thereby driving the test cylinder assembly 1 to rotate and adjust its tilt angle.

[0050] like Figure 5 and Figure 6 As shown, a hollow groove is provided on the side of the deflection rack 214, in which a mounting slide bar 215 is installed, on which a mounting slider 216 is slidably provided, and on the side of the mounting slider 216 a connecting plate 217 is installed, and on the side of the moving block 206 a shaft rod 213 is installed which passes through the rotating tube 211 and is rotatably connected to the connecting plate 217. When the deflection rack 214 is driven to move laterally, the shaft rod 213 is driven to move by the cooperation of the mounting slide bar 215, the mounting slider 216 and the connecting plate 217, and the moving shaft rod 213 drives the moving block 206 to move, and when the deflection rack 214 moves longitudinally, the mounting slider 216 will not be driven to move.

[0051] like Figure 4 and Figure 5 As shown, each second threaded seat 405 and the corresponding limit block 407 are jointly installed with a C-shaped seat 221 on the upper side, and a group of movable slide bars 218 are installed on the inner side of the C-shaped seat 221. Two movable slide bars 219 fixedly connected to the deflection rack 214 on the same side are slidably arranged on the two movable slide bars 218. A cylinder 220 with an end fixedly connected to one of the movable slide bars 219 is installed on the inner side of the C-shaped seat 221. When the cylinder 220 is extended, it drives the movable slide bar 219 to slide on the movable slide bar 218, and the sliding movable slide bar 219 drives the deflection rack 214 to move longitudinally.

[0052] In summary, when adjusting the inclination angle of the test cylinder assembly 1, the drive motor 404 rotates the second bidirectional screw 403, thereby driving the separation of the two second threaded seats 405, driving the U-shaped seats 221 away from each other, and causing the two deflection racks 214 to move laterally until they engage with the deflection gears 212 on the same side. At the same time, the laterally moving deflection rack 214 drives the shaft rod 213 to move through the cooperation of the mounting slide rod 215, the mounting slider 216, and the connecting plate 217. The moving shaft rod 213 drives the moving block 206 to move, drives the two deflection rods 205 to deflect around the rotation connection through the corresponding U-shaped members 209 and the slider 208, and at the same time drives the movement of the other two U-shaped members 209, causing the pin 210 to disengage from the pin hole 204, thereby releasing the fixation of the fixed seat 202. After that, the two cylinders 220 extend to drive the two deflection racks 214 to move laterally, drive the two deflection gears 212 to rotate, and drive the test cylinder assembly 1 to rotate, so as to adjust the deflection angle of the test cylinder assembly 1. After reaching the predetermined test angle, the staff finely adjusts the angle of the test cylinder assembly 1 to align the four pins 210 with the four nearest pin holes 204. Then, the drive motor 404 drives the second bidirectional screw 403 to reverse, causing the two U-shaped seats 221 to approach each other, thereby driving the two moving blocks 206 to approach each other, causing the deflection rods 205 to reverse and deflect, so that each pin 210 is inserted into the aligned pin hole 204 to fix the test cylinder assembly 1, and at the same time releasing the engagement of the deflection rack 214 with the corresponding deflection gear 212.

[0053] As Figures 7 - 9 shown, a storage mechanism 3 is provided on one side of the inclination mechanism 2. The storage mechanism 3 includes a storage box 301. Two partitions 302 are symmetrically installed inside the storage box 301. The two partitions 302 divide the inner cavity of the storage box 301 into a water chamber, an oil chamber, and a waste liquid chamber in sequence from front to back. The water chamber is used to store the hydraulic oil cleaning agent, the oil chamber is used to store the hydraulic oil, and the waste liquid chamber is used to store the waste liquid generated by cleaning the hydraulic oil.

[0054] As Figure 9 and Figure 10 shown, two scheduling seats 307 are symmetrically installed on the upper side of the storage box 301. A baffle 308 adapted to it is slidably arranged in the cavity of the scheduling seat 307. A round rod 309 is installed on the side of the baffle 308. When the round rod 309 moves, it can drive the baffle 308 to move, and the moving baffle 308 can push the liquid in the cavity to move.

[0055] As Figure 8As shown in the figure, a first bidirectional screw 303 is rotatably installed between two scheduling seats 307 on the upper side of the storage box 301. First threaded seats 304 are arranged on both threads of the first bidirectional screw 303. The end of the round rod 309 extends outside the scheduling seat 307 and is installed with a mounting plate 310. Connecting rods 319 are rotatably installed on both sides of the first threaded seat 304. The ends of the connecting rods 319 are rotatably connected to the mounting plate 310 on the same side. When the first bidirectional screw 303 rotates, it drives the two first threaded seats 304 to approach each other. Through the four connecting rods 319, the two mounting plates 310 are pulled to approach each other, and at the same time, the two round rods 309 are driven to move.

[0056] As Figure 11 and Figure 12 shown, a group of cross bars 14 are installed on the rear side of the storage box 301. A sliding seat 15 is slidably arranged on the two cross bars 14. One end of the first bidirectional screw 303 is installed with a rotating gear 305. A rotating rack 306 meshing with the rotating gear 305 is arranged on the upper side of the sliding seat 15. When the sliding seat 15 moves, it drives the rotating rack 306 to move. The moving rotating rack 306 drives the meshing rotating gear 305 to rotate, and then drives the first bidirectional screw 303 to rotate.

[0057] As Figure 9 and Figure 10 shown, an input pipe 7 communicating with one scheduling seat 307 is installed at the oil filling port of the test cylinder assembly 1. A water pipe 311 and an oil pipe 312 are respectively installed on both sides of the scheduling seat 307 communicating with the input pipe 7. The lower end of the water pipe 311 extends to the bottom of the water chamber and is installed with a water pump 315. The lower end of the oil pipe 312 extends to the bottom of the oil chamber and is installed with an oil pump 316. During testing, the operating oil pump 316 sends the hydraulic oil in the oil chamber into the test cylinder assembly 1 through the oil pipe 312, the scheduling seat 307 and the input pipe 7. During cleaning, the operating water pump 315 sends the hydraulic oil cleaning agent in the water chamber into the test cylinder assembly 1 through the above pipelines.

[0058] As Figure 9 and Figure 10 shown, an output pipe 8 communicating with the other scheduling seat 307 is installed at the oil outlet of the test cylinder assembly 1. A return oil pipe 313 and a return sewage pipe 314 are respectively installed on both sides of the scheduling seat 307 communicating with the output pipe 8. The return oil pipe 313 extends into the oil chamber, and the return sewage pipe 314 extends into the waste liquid chamber. The detected hydraulic oil returns to the oil chamber again through the output pipe 8, the other scheduling seat 307 and the return oil pipe 313. The waste liquid after cleaning returns to the waste liquid chamber through the output pipe 8, the scheduling seat 307 and the return sewage pipe 314.

[0059] As Figure 8 and Figure 9As shown in the figure, a faucet 317 communicating with the waste liquid chamber is installed near the bottom on the side of the storage tank 301, and two liquid inlet pipes 318 respectively communicating with the water chamber and the oil chamber are installed near the top on the front side of the storage tank 301. By opening the faucet 317, the waste liquid can be discharged from the faucet 317, and the cleaning agent and hydraulic oil can be added to the water chamber and the oil chamber respectively through the two liquid inlet pipes 318.

[0060] As Figure 12 shown in the figure, a clamping groove 16 is formed on the side of the sliding seat 15. An L-shaped plate 12 is installed on the side of the moving slider 219 on the same side as the sliding seat 15. A clamping block 13 adapted to the clamping groove 16 is installed on the side of the L-shaped plate 12. After the clamping block 13 on the L-shaped plate 12 is engaged with the clamping groove 16, the moving moving slider 219 can drive the L-shaped plate 12 to move, and the moving L-shaped plate 12 drives the sliding seat 15 to move through the cooperation of the clamping block 13 and the clamping groove 16.

[0061] In summary, during the test, the operating oil pump 316 sends the hydraulic oil in the oil chamber into the test cylinder assembly 1 through the oil pipe 312, the scheduling seat 307 and the input pipe 7. Then the oil returns to the oil chamber again through the output pipe 8, another scheduling seat 307 and the oil return pipe 313. When the test cylinder assembly 1 needs to be cleaned, the drive motor 404 will reverse the second bidirectional screw 403, and the U-shaped seat 221 will drive the two moving sliders 219 to approach each other. The movement of the moving slider 219 causes the clamping block 13 to be inserted into the clamping groove 16. At this time, the air cylinder 220 on the same side as the L-shaped plate 12 extends, and further drives the sliding seat 15 to move through the L-shaped plate 12. The moving sliding seat 15 drives the rotating rack 306 to move, drives the first bidirectional screw 303 to rotate through the meshing rotating gear 305, drives the two first threaded seats 304 to approach each other, drives the two mounting plates 310 to approach each other through the four connecting rods 319, and further drives the two baffle plates 308 to approach each other through the two round rods 309, presses the hydraulic oil in the two scheduling seat 307 cavities back into the oil chamber through the oil pipe 312 and the oil return pipe 313, and at the same time closes the ports of the oil pipe 312 and the oil return pipe 313, and opens the ports of the water pipe 311 and the sewage return pipe 314. Then the operating water pump 315 pumps out the hydraulic oil cleaning agent in the water chamber, sends it into the test cylinder assembly 1 through the water pipe 311, the scheduling seat 307 and the input pipe 7 for cleaning, and then the cleaning waste liquid returns to the waste liquid chamber through the output pipe 8, another scheduling seat 307 and the sewage return pipe 314.

[0062] Embodiment 2:

[0063] As Figure 7 and Figure 13As shown, on the basis of the first embodiment, a recycling mechanism 5 is further included. The recycling mechanism 5 includes a U-shaped frame 501 installed on the upper side of the storage tank 301. Cylinders 502 fixedly connected to the U-shaped frame 501 and placed horizontally are provided on both the input pipe 7 and the output pipe 8. A group of pistons 503 are arranged inside the cylinders 502. A group of through holes 508 that are aligned with each other are formed on the side surfaces of each group of two pistons 503. When the two groups of through holes 508 on the two pistons 503 are aligned, the liquid can pass through the through holes 508. When the two groups of through holes 508 are not aligned, the liquid cannot pass through.

[0064] As Figure 13 and Figure 14 shown, a circular pipe 505 is installed at the center of the side surface of one of the pistons 503 in the group. The end of the circular pipe 505 extends outside the cylinder 502 and an L-shaped frame 504 is installed. Electric push rods 509 with their ends fixedly connected thereto are installed on the upper side of the U-shaped frame 501 on one side of each L-shaped frame 504. The extended electric push rods 509 drive the pistons 503 connected thereto to move through the L-shaped frames 504 and the circular pipes 505.

[0065] As Figure 13 and Figure 14 shown, a rotating rod 506 extending into the circular pipe 505 is installed at the center of the side surface of the other piston 503 in the group. A rotating motor 507 with its driving end fixedly connected to the same-side rotating rod 506 is installed on the inner side surface of the L-shaped frame 504. The operating rotating motor 507 can drive the rotating rod 506 to rotate, and the rotating rotating rod 506 drives the piston 503 connected thereto to rotate.

[0066] In summary, before cleaning, the rotating motor 507 drives the rotating rod 506 to rotate the piston 503 by ninety degrees, causing the two groups of through holes 508 to be misaligned. Subsequently, the electric push rod 509 extends to push the piston 503 to move, pressing the oil in the cylinder 502 into the scheduling seat 307, and at the same time sucking back the hydraulic oil in the input pipe 7 and the output pipe 8. Then the rotating motor 507 rotates in the reverse direction to reset the piston 503, and the through holes 508 are aligned. The electric push rod 509 shortens, the piston 503 returns to its original state, the rotating motor 507 drives the piston 503 to rotate by ninety degrees again to misalign the through holes 508, and the electric push rod 509 extends to press the oil in the cylinder 502 back into the oil chamber again.

[0067] Similarly, before the test, repeat the operation to pump back the cleaning agent and waste liquid in the input pipe 7 and the output pipe 8. At this time, one cylinder 502 stores the cleaning agent and the other stores the waste liquid. Then, press the cleaning agent into the water cavity and the waste liquid into the waste liquid cavity. Thus, the residual oil in the input pipe 7 and the output pipe 8 can be removed before cleaning, reducing the waste of oil. At the same time, the cleaning agent in the input pipe 7 can be removed before the test to prevent the hydraulic oil from mixing with the cleaning agent and entering the test cylinder assembly 1, which may affect the test results. Also, removing the waste liquid in the output pipe 8 can prevent the waste liquid from mixing with the oil and returning to the oil cavity, thus avoiding the pollution of the hydraulic oil.

[0068] The working principle steps of the present invention are as follows:

[0069] S1. System installation: Install the hydraulic control system in the test cylinder assembly 1. Specifically, open the test cylinder assembly 1, properly install the hydraulic control system including the motor assembly, the plunger pump assembly, and the control valve assembly inside the test cylinder assembly 1, and then close the test cylinder assembly 1. Connect the oil inlet of the test cylinder assembly 1 to the input pipe 7, connect the oil outlet of the test cylinder assembly 1 to the output pipe 8, install the pressure detection component 10 and the pressure gauge 11 at the ports of the four-way component 9 respectively, and close the remaining ports.

[0070] S2. System test: Inject oil into the test cylinder assembly 1 to let the hydraulic control system operate and detect its output pressure. Specifically, the operating oil pump 316 pumps the hydraulic oil in the oil cavity through the oil pipe 312, the scheduling seat 307, and the input pipe 7 into the test cylinder assembly 1. The hydraulic control system works, the motor assembly starts the plunger pump assembly to work, and pumps the hydraulic oil into the control valve assembly. After the hydraulic oil enters the control valve assembly, a part of it enters the high-pressure area of the control valve assembly, increasing the pressure in the high-pressure area and also increasing the output pressure of the pressure output port. Use the pressure gauge 11 and the pressure detection component 10 to detect the output pressure of the pressure output port. The remaining part is discharged from the control valve assembly through the throttle valve. Then, the oil returns to the oil cavity through the output pipe 8, another scheduling seat 307, and the oil return pipe 313. The rotation speed of the motor assembly controls the output pressure of the pressure output port. As the rotation speed of the motor assembly increases, the hydraulic oil pumped into the control valve assembly by the plunger pump assembly increases, the pressure in the high-pressure area increases, and the output pressure of the pressure output port increases.

[0071] S3. Angle inclination: Incline the test cylinder assembly 1 at an angle and detect its output pressure. Specifically, after the drive motor 404 is started, the second bidirectional screw 403 is driven to rotate. The two second threaded seats 405 are driven to move away from each other, and thus the two U-shaped seats 221 also move apart from each other. In this way, the two deflection racks 214 can move horizontally until they engage with the deflection gears 212 on the same side. At the same time, the horizontally moving deflection rack 214 also pushes the moving block 206 to move through the shaft rod 213. The movement of the moving block 206 drives the two deflection rods 205 to deflect around the rotation connection point. This deflection action further drives the movement of the other two U-shaped members 209, so that the two pins 210 are smoothly removed from the pin holes 204.

[0072] After that, the two cylinders 220 extend to drive the two deflection racks 214 to move horizontally, and drive the test cylinder assembly 1 to rotate through the deflection gears 212. After reaching the predetermined test angle, the staff finely adjusts the angle of the test cylinder assembly 1 to align the four pins 210 with the four nearest pin holes 204. Then, the drive motor 404 drives the second bidirectional screw 403 to reverse, making the two U-shaped seats 221 approach each other, thereby driving the two moving blocks 206 to approach each other, causing the deflection rods 205 to reverse and deflect so that each pin 210 is inserted into the aligned pin hole 204 to fix the test cylinder assembly 1, and at the same time releasing the engagement of the deflection rack 214 with the corresponding deflection gear 212.

[0073] S4. Pressure observation: After each inclination of the test cylinder assembly 1, the staff observes the output pressure on the pressure gauge 11 and the pressure detection component 10. Specifically, when the inclination of the test cylinder assembly 1 is completed, the staff can observe the output pressure when the test cylinder assembly 1 is inclined. Then, repeat the operation of S3 to incline the test cylinder assembly 1 multiple times and observe its output pressure multiple times. If the pressure reaches the existing index each time, it means that the hydraulic control system is qualified. If the pressure does not reach the existing index, it means that the hydraulic control system is unqualified.

[0074] S5. System cleaning: Clean the inside of the test cylinder assembly 1 and the hydraulic control system. Specifically, the drive motor 404 drives the second bidirectional screw 403 to reverse, drives the two moving sliders 219 to approach each other through the U-shaped seat 221. The moving moving slider 219 drives the block 13 to snap into the card slot 16. The air cylinder 220 on the same side as the L-shaped plate 12 extends to drive the sliding seat 15 to move through the L-shaped plate 12. The moving sliding seat 15 drives the rotating rack 306 to move, drives the first bidirectional screw 303 to rotate through the meshing rotating gear 305, drives the two first threaded seats 304 to approach each other, drives the two mounting plates 310 to approach each other through the four connecting rods 319, and further drives the two baffles 308 to approach each other through the two round rods 309. Using the oil pipe 312 and the return oil pipe 313, the hydraulic oil in the two scheduling seats 307 is repressed back into the oil cavity, and at the same time, the ports of the oil pipe 312 and the return oil pipe 313 are closed, and the ports of the water pipe 311 and the sewage return pipe 314 are opened. Then the running water pump 315 pumps out the hydraulic oil cleaning agent in the water cavity, sends it into the test cylinder assembly 1 through the water pipe 311, the scheduling seat 307 and the input pipe 7. When the cleaning agent flows through the test cylinder assembly 1, the hydraulic control system is started synchronously to push the cleaning agent to flow, and the cleaning agent is used to scour every corner of the inside of the test cylinder assembly 1 and the hydraulic control system, wash away and take away the remaining hydraulic oil. The waste liquid after cleaning flows through the output pipe 8, another scheduling seat 307 and the sewage return pipe 314, and finally flows back to the waste liquid cavity. After the staff observes that the color of the waste liquid in the transparent output pipe 8 is the same as the color of the cleaning agent, it means that the hydraulic oil cleaning is completed, and the water pump 315 is turned off.

[0075] S6. Structure restoration: Take out the hydraulic control system in the test cylinder assembly 1. Specifically, after cleaning, open the test cylinder assembly 1 and take out the cleaned hydraulic control system from it. If the system passes the inspection, it can be directly assembled into the rotary steering tool for use; if it fails, it needs to be reworked. At the same time, the air cylinder 220 on the same side as the storage box 301 shortens to drive the rotating rack 306 to reverse and move, drives the first bidirectional screw 303 to reverse through the rotating gear 305, makes the two baffles 308 move away from each other, closes the ports of the water pipe 311 and the sewage return pipe 314, and opens the ports of the oil pipe 312 and the return oil pipe 313, then the next test can be carried out.

[0076] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting.

[0077] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A rotary steering hydraulic test system, including a test cylinder assembly (1), a cross-shaped four-way component (9) is installed at the pressure measuring port of the test cylinder assembly (1), and it is characterized in that: An inclination mechanism (2) is arranged on the side of the test cylinder assembly (1). The inclination mechanism (2) includes two symmetrically arranged vertical plates (201). One side of the vertical plate (201) is provided with a fixed seat (202) connected to the test cylinder assembly (1). Two deflection rods (205) are rotatably installed in the cavity of the fixed seat (202). A set of strip-shaped grooves (207) are opened at both ends of the deflection rod (205). Two corresponding sliders (208) are slidably arranged in each group of two strip-shaped grooves (207). A U-shaped member (209) is jointly installed at the ends of two corresponding sliders (208). A moving block (206) is jointly installed on the middle two U-shaped members (209). An annular seat (203) is installed on the side of the vertical plate (201). A number of uniformly distributed pin holes (204) are circularly opened on the surface of the annular seat (203). Plug pins (210) extending into the two pin holes (204) are installed on the sides of the two U-shaped members (209); A rotating tube (211) passing through the同侧 vertical plate (201) is installed at the center of the side of the fixed seat (202). A deflection gear (212) is installed at the end of the rotating tube (211). A deflection rack (214) is slidably arranged on one side of the deflection gear (212). A shaft rod (213) passing through the rotating tube (211) and connected to the deflection rack (214) is installed on the side of the moving block (206). A U-shaped seat (221) connected to it is slidably arranged on the side of the deflection rack (214). The sliding direction of the U-shaped seat (221) is perpendicular to the sliding direction of the deflection rack (214); A storage mechanism (3) is arranged on one side of the inclination mechanism (2). The storage mechanism (3) includes a storage box (301). Two partition plates (302) are symmetrically installed inside the storage box (301). The two partition plates (302) divide the inner cavity of the storage box (301) into a water cavity, an oil cavity and a waste liquid cavity in sequence from front to back. Two scheduling seats (307) are symmetrically installed on the upper side of the storage box (301). A baffle (308) adapted to it is slidably arranged in the cavity of the scheduling seat (307). A round rod (309) is installed on the side of the baffle (308). A first bidirectional screw (303) is rotatably installed on the upper side of the storage box (301) between the two scheduling seats (307). First thread seats (304) are arranged on both threads of the first bidirectional screw (303).

2. A rotary steerable hydraulic test system according to claim 1, characterized in that: The end of the round rod (309) extends outside the scheduling seat (307) and is installed with a mounting plate (310). Connecting rods (319) are rotatably installed on both sides of the first thread seat (304). The end of the connecting rod (319) is rotatably connected to the mounting plate (310) on the same side.

3. A rotary guide hydraulic test system according to claim 2, characterized in that: A rotating gear (305) is mounted on one end of the first bidirectional screw (303), and a rotating rack (306) is disposed on the side of the rotating gear (305) and is meshed with the rotating gear (305) and connected to the deflection rack (214) on the same side.

4. A rotary guide hydraulic test system according to claim 3, characterized in that: The oil filling port of the test cylinder assembly (1) is equipped with an input pipe (7) connected to one scheduling seat (307), and the oil outlet of the test cylinder assembly (1) is equipped with an output pipe (8) connected to another scheduling seat (307).

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