Integrated gas injection rotary oil hydraulic cylinder

Abstract

The invention relates to a rotary oil hydraulic cylinder, in particular to an integrated gas injection rotary oil hydraulic cylinder. Comprising an oil hydraulic cylinder body, the oil hydraulic cylinder body sequentially comprises an oil shaft, a swivel joint and a rotating joint from top to bottom, multiple sets of mounting discs are arranged outside the oil shaft, the two sets of mounting discs are communicated with the interior of the oil shaft, and a hydraulic oil conveying channel and a compressed air conveying channel are arranged in the oil shaft; oil and gas can be used at the same time through the hydraulic oil conveying channel and the compressed air conveying channel which are independently arranged, the flow speed and pressure are changed through pipe diameter changes in the process that hydraulic oil flows from the gradually-shrinking end to the gradually-expanding end in the pipeline, and large bubbles in the hydraulic oil are changed into small bubbles; the first perforated plate and the second perforated plate are arranged at the gradually-shrinking end and the gradually-expanding end, fluid is guided through oil drainage holes, the contact area of bubbles and the fluid is increased, and the bubbles are further eliminated.

Description

Technical Field

[0001] The present invention relates to a rotary hydraulic cylinder, and more specifically, to an integrated gas injection rotary hydraulic cylinder. Background Art

[0002] The currently widely used rotary cylinders mainly include rotary hydraulic cylinders and rotary air cylinders. A rotary cylinder is a mechanical device that converts linear motion into rotary motion. Among them, a rotary air cylinder is a pneumatic actuator that uses compressed air to drive the output shaft to reciprocally rotate within a certain angle range.

[0003] Most of the existing market has rotary cylinders for single media, mostly for liquid media such as oil or water. Most of them are inconvenient to achieve the common use of oil and gas, and mutual leakage will occur when used simultaneously. A single power medium cannot take into account the precise control of force and speed and the timeliness of action response, greatly limiting the working efficiency and application range of the system; At the same time, during the flow of hydraulic oil, when the pressure changes sharply, such as when the pressure rapidly decreases, the air originally dissolved in the hydraulic oil will precipitate and form bubbles due to the decrease in solubility. During the flow of hydraulic oil, when the pressure changes sharply, such as when the pressure rapidly decreases, the air originally dissolved in the hydraulic oil will precipitate and form bubbles due to the decrease in solubility. The generation and aggregation of bubbles easily lead to pressure fluctuations in the hydraulic oil, reducing the stability and reliability of the system; In addition, during the transportation of hydraulic oil, due to the layout of pipelines, the change of pipe diameters, and the complexity of internal structures, it is difficult for the hydraulic oil to maintain a uniform flow rate when flowing in the pipeline. At some bends, branches, or positions where the pipe diameter suddenly changes, the hydraulic oil is prone to form turbulence, resulting in too high or too low local flow rates. The non-uniform flow rate will cause abnormal local pressure. Too high pressure may cause the pipeline to rupture and leak, while too low pressure cannot meet the requirements of the equipment for the pressure of the hydraulic oil, affecting the normal operation of the equipment. Summary of the Invention

[0004] The purpose of the present invention is to provide an integrated gas injection rotary hydraulic cylinder to solve the problems raised in the above background art.

[0005] To achieve the above purpose, an integrated gas injection rotary hydraulic cylinder is provided, including a hydraulic cylinder body. The hydraulic cylinder body sequentially includes an oil shaft, a rotary joint, and a swivel joint from top to bottom. The inside of the oil shaft is hollow. Multiple mounting plates are arranged outside the oil shaft. Multiple oil pipelines are arranged inside the oil shaft. A compressed air delivery channel is arranged inside the oil shaft. A fixing device is arranged inside multiple oil shafts. The fixing device is composed of multiple pipelines. Multiple pipelines and multiple oil pipelines form a hydraulic oil delivery channel. An adjusting device is arranged inside the fixing device. The fixing device and the adjusting device both correspond to the number of mounting plates; When the hydraulic oil flows into the hydraulic oil delivery channel, the hydraulic oil passes through a fixing device which regulates the flow rate of the hydraulic oil inside the hydraulic oil delivery channel. The fixing device turns the large air bubbles in the hydraulic oil into small bubbles. When the hydraulic oil flows inside the fixing device, the angle of an adjusting device is adjusted, and the adjusting device disperses the hydraulic oil, and the dispersed liquid breaks up the bubbles in the hydraulic oil.

[0006] As a further improvement of this technical solution, the fixing device includes a contraction pipe disposed at the middle position of the pipeline. Both ends of multiple pipelines are fixedly connected to multiple oil pipelines through flanges. The two ends of the contraction pipe are a tapered end and a flared end. The aperture of the contraction pipe is smaller than the apertures at both ends of the pipeline. The diameters of the tapered end and the flared end are the same as the diameter of the oil pipeline.

[0007] As a further improvement of this technical solution, the adjusting device includes a first adjusting plate and a second adjusting plate disposed at the middle position of the contraction pipe. The first adjusting plate and the second adjusting plate form a circle. The first adjusting plate does not fit against the inner wall of the contraction pipe. A fixing rod is rotatably connected inside the pipeline. The fixing rod is fixedly connected to the second adjusting plate and rotatably connected to the first adjusting plate.

[0008] As a further improvement of this technical solution, a second perforated plate and a first perforated plate are fixedly connected inside the pipeline. The second perforated plate and the first perforated plate are respectively disposed at the positions of the flared end and the tapered end.

[0009] As a further improvement of this technical solution, a number of oil discharge holes are formed inside both the second perforated plate and the first perforated plate. The oil discharge holes are tapered. The oil discharge holes on the first perforated plate gradually contract from bottom to top, and the oil discharge holes on the second perforated plate gradually expand from bottom to top.

[0010] As a further improvement of this technical solution, one end of the fixing rod penetrates through the side wall of the contraction pipe and is fixedly connected to a fixing block. A sealing gasket is provided at the connection between the second adjusting plate and the contraction pipe. One end of the first adjusting plate is fixedly connected to a cylindrical block. One side of both the fixing block and the cylindrical block is fixedly connected to a pin shaft. When the first adjusting plate and the second adjusting plate are in the same horizontal plane, the two pin shafts are staggered.

[0011] As a further improvement of this technical solution, a bracket is fixedly connected inside the mounting disc. The bracket is arranged in a rectangular frame shape. A slider is slidably connected inside the bracket. An electric telescopic rod is fixedly connected to the inner wall of the bracket. The piston end of the electric telescopic rod is fixedly connected to one side of the slider.

[0012] As a further improvement of the technical solution, a groove adapted to the diameter of the fixed rod is provided inside the slider. Two chutes are provided inside the slider. The two chutes are perpendicular to and communicate with the groove, and the two pin shafts are arranged inside the chutes.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. In this integrated gas injection rotary oil cylinder, during the process of hydraulic oil flowing from the tapered end to the contraction pipe and then to the tapered expansion end in the pipeline, the flow rate and pressure are changed by the change in pipe diameter, turning the large air bubbles in the hydraulic oil into small air bubbles. The first perforated plate and the second perforated plate provided at the tapered end and the tapered expansion end use the oil discharge holes to guide the fluid, increasing the contact area between the bubbles and the fluid and further eliminating the bubbles.

[0014] 2. In this integrated gas injection rotary oil cylinder, the hydraulic oil can be evenly distributed through the filter holes on the first adjusting plate and the second adjusting plate in the contraction pipe, reducing the phenomenon of uneven flow rate. The electric telescopic rod drives the relevant components to rotate the first adjusting plate and the second adjusting plate closer, changing the hydraulic oil passage area and flow direction, breaking up the bubbles, making the hydraulic system operate more smoothly, and extending the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is one of the schematic sectional views of the overall structure of the present invention; Figure 3 is the second of the schematic sectional views of the overall structure of the present invention; Figure 4 is a schematic sectional view of the mounting plate of the present invention; Figure 5 is a schematic sectional view of the pipeline of the present invention; Figure 6 is a schematic sectional view of the structure of the fixing device of the present invention; Figure 7 is a schematic diagram of the structure of the adjusting device of the present invention; Figure 8 is a schematic diagram of the structure of the fixed rod of the present invention.

[0016] The meanings of the various reference numerals in the figures are as follows: 1. Oil cylinder body; 11. Rotary joint; 12. Rotary joint; 13. Oil shaft; 14. Mounting plate; 15. Oil pipeline 2. Fixing device; 21. Pipeline; 22. Tapered end; 23. Tapered expansion end; 24. First perforated plate; 25. Second perforated plate; 26. Contraction pipe; 3. Adjusting device; 31. First adjusting plate; 32. Second adjusting plate; 33. Fixed rod; 34. Pin shaft; 35. Fixed block; 36. Cylindrical block; 37. Bracket; 371. Electric telescopic rod; 372. Slide block; 373. Groove; 374. Slideway; 41. Air input port; 42. Air output port; 43. Oil input port; 44. Oil output port; 431. Hydraulic oil delivery channel; 441. Compressed air delivery channel. Specific implementation mode

[0017] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0018] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present invention.

[0019] Please refer to Figures 1-8 As shown, the purpose of this embodiment is to provide an integrated gas injection rotary oil cylinder. The oil cylinder body 1 includes an oil shaft 13, a rotary joint 11, and a swivel joint 12 in sequence from top to bottom. The inside of the oil shaft 13 is hollow, and multiple mounting plates 14 are arranged outside the oil shaft 13. A plurality of oil pipes 15 are arranged inside the oil shaft 13. A compressed air delivery channel 441 is arranged inside the oil shaft 13. A fixing device 2 is arranged inside a plurality of oil shafts 13. The fixing device 2 is composed of a plurality of pipes 21. The plurality of pipes 21 and the plurality of oil pipes 15 form a hydraulic oil delivery channel 431. An adjusting device 3 is arranged inside the fixing device 2. The fixing device 2 and the adjusting device 3 both correspond to the number of mounting plates 14; The hydraulic oil delivery channel 431 and the compressed air delivery channel 441 are independently arranged to enable the simultaneous use of oil and gas, which can optimize the energy distribution and reduce the overall energy consumption of the system. When the hydraulic oil flows into the hydraulic oil delivery channel 431, the hydraulic oil passes through the fixing device 2. The fixing device 2 adjusts the flow rate of the hydraulic oil inside the hydraulic oil delivery channel 431. The fixing device 2 turns the large air bubbles in the hydraulic oil into small bubbles. When the hydraulic oil flows inside the fixing device 2, the angle of the adjusting device 3 is adjusted. The adjusting device 3 disperses the hydraulic oil. The dispersed liquid breaks up the air bubbles in the hydraulic oil, increasing the contact area between the bubbles and the fluid, further making the hydraulic system operate more smoothly and extending the service life of the equipment.

[0020] Please refer to Figure 2 and Figure 3 As shown, an air inlet 41 and an air outlet 42 are arranged inside the oil shaft 13. The air inlet 41 and the air outlet 42 are respectively connected to both ends of the compressed air delivery channel 441. An oil inlet 43 and an oil outlet 44 are arranged inside the rotary joint 11. The oil inlet 43 and the oil outlet 44 are respectively connected to both ends of the hydraulic oil delivery channel 431. When using the rotary joint 12, the compressed air medium enters the inside of the compressed air delivery channel 441 through the air inlet 41. The compressed air medium is then used by the application equipment. Here, the application equipment refers to the equipment that relies on compressed air to work, such as pneumatic machining equipment, pneumatic automation equipment, etc. This technology is not an innovative technology of this solution and will not be elaborated here. Then, the compressed air medium is returned by the application equipment to the compressed air delivery channel 441, and the compressed air medium is output from the air outlet 42. When using the rotary joint 11, the hydraulic oil medium enters the inside of the hydraulic oil delivery channel 431 through the oil inlet 43. The hydraulic oil medium is then used by the application equipment. Then, the hydraulic oil medium is returned by the application equipment to the hydraulic oil delivery channel 431, and the hydraulic oil medium is output from the oil outlet 44. By independently arranging the hydraulic oil delivery channel 431 and the compressed air delivery channel 441, the simultaneous use of oil and gas can optimize the energy distribution and reduce the overall energy consumption of the system. Because the hydraulic oil has good pressure transmission performance, it can accurately control the output force and movement speed of the hydraulic cylinder, meeting the precise requirements for force and speed in different working scenarios. Compressed air can respond quickly to achieve rapid action switching. The combination of the two can, while requiring precise control, quickly achieve certain actions, improving the overall performance of the system.

[0021] Please refer to Figures 4-6As shown, the fixing device 2 includes a shrinkage pipe 26 disposed at the middle position of the pipeline 21. Both ends of multiple pipelines 21 are fixedly connected to multiple oil pipelines 15 through flanges. The two ends of the shrinkage pipe 26 are a tapered end 22 and a flared end 23. The aperture of the shrinkage pipe 26 is smaller than the apertures at both ends of the pipeline 21. The diameters of the tapered end 22 and the flared end 23 are the same as the diameter of the oil pipeline 15. Multiple pipelines 21 are installed on the oil pipeline 15 through flanges. A gasket is provided between the pipeline 21 and the oil pipeline 15. When the hydraulic oil medium enters the interior of the hydraulic oil transmission channel 431 through the oil input port 43 and flows from the oil pipeline 15 to the pipeline 21, the hydraulic oil medium first flows from the tapered end 22 to the shrinkage pipe 26, and the diameter of the pipeline 21 gradually decreases, causing the cross-sectional area of the hydraulic oil medium fluid to decrease. Therefore, the flow velocity of the fluid increases, and at this time, the pressure decreases, reducing the generation and accumulation of bubbles. When the hydraulic oil medium flows from the shrinkage pipe 26 to the flared end 23, the diameter of the pipeline 21 gradually increases and the flow velocity of the fluid decreases. At this time, the pressure recovers, and the pressure recovery can balance the pressure loss caused by friction, local resistance, etc. during the fluid flow process, avoiding pressure mutation. The stable pressure helps to maintain the force balance inside the fluid, reducing the generation of turbulence and eddy currents, so that the fluid can smoothly pass through the pipeline 21 to achieve stable flow.

[0022] Please refer to Figure 6As shown in the figure, a second perforated plate 25 and a first perforated plate 24 are fixedly connected inside the pipeline 21. The second perforated plate 25 and the first perforated plate 24 are respectively arranged at the positions of the gradually expanding end 23 and the gradually contracting end 22. Sealing gaskets are fixedly connected to the outer walls of the second perforated plate 25 and the first perforated plate 24, ensuring the sealing performance of the first perforated plate 24 and the second perforated plate 25 through the sealing gaskets. The second perforated plate 25 and the first perforated plate 24 are respectively arranged at the positions of the gradually expanding end 23 and the gradually contracting end 22. A number of oil discharge holes are provided inside the second perforated plate 25 and the first perforated plate 24. The oil discharge holes are tapered. The oil discharge holes on the first perforated plate 24 gradually contract from bottom to top, and the oil discharge holes on the second perforated plate 25 gradually expand from bottom to top. The first perforated plate 24 and the second perforated plate 25 are arranged at the gradually contracting end 22 and the gradually expanding end 23, and the directions of the oil discharge holes on the first perforated plate 24 and the second perforated plate 25 are the same as the directions of the gradually contracting end 22 and the gradually expanding end 23, so that when the hydraulic oil medium flows from the gradually contracting end 22 to the gradually contracting end 22 and the gradually expanding end 23, it passes through the first perforated plate 24 and the second perforated plate 25. The first perforated plate 24 and the second perforated plate 25 guide the fluid through the direction of the oil discharge holes, increasing the contact area between the bubbles and the fluid. The presence of the first perforated plate 24 and the second perforated plate 25 changes the flow state of the fluid. The originally relatively stable laminar flow may turn into turbulent flow. In the turbulent flow state, the velocity distribution inside the fluid is more complex, with various vortices and velocity gradients of different sizes. This complex flow state makes the fluid force around the bubbles uneven, making it easier to break. At the same time, under the action of the vortices, the bubble surface will be subjected to shear forces from different directions. When these shear forces exceed the surface tension of the bubbles, the bubbles will break into smaller bubbles, enabling the hydraulic oil to more effectively transmit pressure and power, improving the response speed and working efficiency of the system.

[0023] Please refer to Figure 7 and Figure 8 As shown in the figure, the adjusting device 3 includes a first adjusting plate 31 and a second adjusting plate 32 arranged at the middle position of the contraction pipe 26. The first adjusting plate 31 and the second adjusting plate 32 form a circle. The first adjusting plate 31 does not fit the inner wall of the contraction pipe 26. A fixed rod 33 is rotatably connected inside the pipeline 21. The fixed rod 33 is fixedly connected to the second adjusting plate 32 and rotatably connected to the first adjusting plate 31. When the hydraulic oil medium passes through the contraction pipe 26, the first adjusting plate 31 and the second adjusting plate 32 are arranged inside the contraction pipe 26. Filter holes are provided inside the first adjusting plate 31 and the second adjusting plate 32. When the hydraulic oil medium passes through the filter holes inside the first adjusting plate 31 and the second adjusting plate 32, the filter holes will evenly distribute the hydraulic oil, reducing the phenomenon of too high or too low local flow velocity.

[0024] Please refer to Figure 7 and Figure 8As shown in the figure, one end of the fixed rod 33 penetrates through the side wall of the contraction tube 26 and is fixedly connected to a fixed block 35. A sealing gasket is provided at the connection between the second adjusting plate 32 and the contraction tube 26. One end of the first adjusting plate 31 is fixedly connected to a cylindrical block 36. One side of both the fixed block 35 and the cylindrical block 36 is fixedly connected to a pin shaft 34. When the first adjusting plate 31 and the second adjusting plate 32 are in the same horizontal plane, the two pin shafts 34 are arranged in a staggered manner. A bracket 37 is fixedly connected inside the mounting disc 14. The bracket 37 is arranged in a rectangular frame. A slider 372 is slidably connected inside the bracket 37. An electric telescopic rod 371 is fixedly connected to the inner wall of the bracket 37. The piston end of the electric telescopic rod 371 is fixedly connected to one side of the slider 372. A groove 373 adapted to the diameter of the fixed rod 33 is provided inside the slider 372. Two sliding grooves 374 are provided inside the slider 372. The two sliding grooves 374 are perpendicular to and communicate with the groove 373. The two pin shafts 34 are arranged inside the sliding grooves 374. Starting the electric telescopic rod 371 drives the slider 372 to move inside the bracket 37. The movement of the slider 372 drives the pin shafts 34 on one side of the fixed block 35 and the cylindrical block 36 to rotate inside the sliding grooves 374. The two pin shafts 34 respectively drive the fixed block 35 and the cylindrical block 36 to rotate in opposite directions. The rotation of the fixed block 35 and the cylindrical block 36 drives the second adjusting plate 32 and the first adjusting plate 31 to rotate, so that the first adjusting plate 31 and the second adjusting plate 32 approach each other. When the hydraulic oil flows to the first adjusting plate 31 and the second adjusting plate 32, the first adjusting plate 31 and the second adjusting plate 32 change the passing area and flow direction of the hydraulic oil, break up the air bubbles in the hydraulic oil, increase the contact area between the air bubbles and the fluid, and further make the hydraulic system operate more smoothly and extend the service life of the equipment.

[0025] When the integrated air injection rotary hydraulic cylinder of the present invention is specifically used, through the inside of the provided compressed air delivery channel 441 and the hydraulic oil delivery channel 431, the two channels are independently arranged, so that oil and gas can be used simultaneously, which can optimize the energy distribution and reduce the overall energy consumption of the system.

[0026] By installing a plurality of pipes 21 on the oil pipeline 15, when the hydraulic oil flows in the pipes 21, it passes through the tapered end 22 and the tapered expansion end 23, changing the flow rate and pressure, reducing the bubble aggregation, and the first porous plate 24 and the second porous plate 25 provided at the tapered end 22 and the tapered expansion end 23 can guide the fluid, turning the large air bubbles in the hydraulic oil into small air bubbles and further eliminating the air bubbles.

[0027] When the hydraulic oil passes through the contraction pipe 26, the filter holes on the first regulating plate 31 and the second regulating plate 32 arranged inside the contraction pipe 26 can evenly distribute the hydraulic oil, reducing the phenomenon of too high or too low local flow velocity. Start the electric telescopic rod 371 to drive the slider 372 and the pin shaft 34, so that the fixed block 35 and the cylindrical block 36 rotate in opposite directions, and then make the first regulating plate 31 and the second regulating plate 32 approach each other, changing the hydraulic oil passing area and flow direction, breaking up the bubbles in the hydraulic oil, increasing the contact area between the bubbles and the fluid, further making the hydraulic system operate more smoothly and extending the service life of the equipment.

[0028] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. An integrated gas injection rotary oil cylinder, comprising an oil cylinder body (1), wherein the oil cylinder body (1) sequentially includes an oil shaft (13), a rotary joint (11) and a swivel joint (12) from top to bottom, and is characterized in that: The inside of the oil shaft (13) is hollow, and multiple mounting plates (14) are arranged on the outside of the oil shaft (13). A plurality of oil pipes (15) are arranged inside the oil shaft (13). A compressed air delivery channel (441) is arranged inside the oil shaft (13). A fixing device (2) is arranged in a plurality of the oil shafts (13). The fixing device (2) is composed of a plurality of pipes (21). A hydraulic oil delivery channel (431) is formed between the plurality of pipes (21) and the plurality of oil pipes (15). An adjusting device (3) is arranged inside the fixing device (2). The fixing device (2) and the adjusting device (3) both correspond to the number of the mounting plates (14). When the hydraulic oil flows into the hydraulic oil delivery channel (431), the hydraulic oil passes through the fixing device (2). The fixing device (2) adjusts the flow rate of the hydraulic oil inside the hydraulic oil delivery channel (431). The fixing device (2) turns the large air bubbles in the hydraulic oil into small air bubbles. When the hydraulic oil flows inside the fixing device (2), the angle of the adjusting device (3) is adjusted. The adjusting device (3) disperses the hydraulic oil, and the dispersed liquid breaks up the air bubbles in the hydraulic oil.

2. The integrated gas injection rotary oil cylinder according to claim 1, wherein: The fixing device (2) includes a contraction pipe (26) arranged at the middle position of the pipe (21). The two ends of the plurality of pipes (21) are fixedly connected to the plurality of oil pipes (15) through flange plates. The two ends of the contraction pipe (26) are a tapered end (22) and a flared end (23). The aperture of the contraction pipe (26) is smaller than the apertures at both ends of the pipe (21). The diameters of the tapered end (22) and the flared end (23) are the same as the diameter of the oil pipe (15).

3. The integrated gas injection rotary hydraulic cylinder according to claim 2, characterized in that: The adjusting device (3) includes a first adjusting plate (31) and a second adjusting plate (32) arranged at the middle position of the contraction pipe (26). The first adjusting plate (31) and the second adjusting plate (32) form a circle. The first adjusting plate (31) does not fit against the inner wall of the contraction pipe (26). A fixing rod (33) is rotatably connected inside the pipe (21). The fixing rod (33) is fixedly connected to the second adjusting plate (32). The fixing rod (33) is rotatably connected to the first adjusting plate (31).

4. The integrated gas injection rotary oil cylinder according to claim 2, wherein: A second perforated plate (25) and a first perforated plate (24) are fixedly connected inside the pipe (21). The second perforated plate (25) and the first perforated plate (24) are respectively arranged at the positions of the flared end (23) and the tapered end (22).

5. The integrated gas injection rotary hydraulic cylinder according to claim 4, wherein: A number of oil discharge holes are formed inside both the second perforated plate (25) and the first perforated plate (24). The oil discharge holes are tapered. The oil discharge holes on the first perforated plate (24) are gradually shrinking from bottom to top. The oil discharge holes on the second perforated plate (25) are gradually expanding from bottom to top.

6. The integrated gas injection rotary oil cylinder according to claim 3, wherein: One end of the fixed rod (33) penetrates through the side wall of the contraction tube (26) and is fixedly connected with a fixed block (35). A sealing gasket is arranged at the connection between the second adjusting plate (32) and the contraction tube (26). One end of the first adjusting plate (31) is fixedly connected with a cylindrical block (36). One side of each of the fixed block (35) and the cylindrical block (36) is fixedly connected with a pin shaft (34). When the first adjusting plate (31) and the second adjusting plate (32) are in the same horizontal plane, the two pin shafts (34) are arranged in a staggered manner.

7. The integrated gas injection rotary hydraulic cylinder according to claim 6, wherein: A bracket (37) is fixedly connected inside the mounting disc (14). The bracket (37) is arranged in a rectangular frame shape. A slider (372) is slidably connected inside the bracket (37). An electric telescopic rod (371) is fixedly connected to the inner wall of the bracket (37). The piston end of the electric telescopic rod (371) is fixedly connected with one side of the slider (372).

8. The integrated gas injection rotary hydraulic cylinder according to claim 7, characterized in that: A groove (373) adapted to the diameter of the fixed rod (33) is formed inside the slider (372). Two sliding grooves (374) are formed inside the slider (372). The two sliding grooves (374) are perpendicular to and communicate with the groove (373). The two pin shafts (34) are arranged inside the sliding grooves (374).

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