Rotation stopping hydraulic cylinder

Abstract

The utility model relates to the technical field of hydraulic cylinders, and provides a rotation stopping hydraulic cylinder which comprises an oil cylinder, the oil cylinder is provided with an oil cavity, the oil cavity is provided with a plurality of first inlets and outlets and a plurality of second inlets and outlets, a piston rod is arranged in the oil cavity in a rotating mode, a blade piston is arranged on the piston rod, and turbulent flow blades are arranged on the piston rod. The multiple electromagnetic two-way valves abut against the blade piston, and each first inlet and outlet or each second inlet and outlet is communicated with one electromagnetic two-way valve. By means of the technical scheme, the problem that in the prior art, the damage rate is high due to rotation of the piston rod of the hydraulic cylinder is solved.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic cylinder technology, specifically to an anti-rotation hydraulic cylinder. Background Technology

[0002] Currently, domestic and international companies primarily employ dual-cylinder balancing or single-cylinder guiding methods to control the rotation of reciprocating pistons in hydraulic transmissions. These methods use two parallel cylinders or a single cylinder with a guide rod to prevent piston rotation. However, these methods are relatively complex in design, difficult to balance, and have relatively high maintenance costs. Especially in packaging systems, the three-beam, four-column structure is prone to jamming of the middle beam, causing severe wear on the guide components and shortening the machine's lifespan. Utility Model Content

[0003] This utility model proposes an anti-rotation hydraulic cylinder, which solves the problem of high damage rate caused by the rotation of the piston rod in hydraulic cylinders in related technologies.

[0004] The technical solution of this utility model is as follows:

[0005] An anti-rotation hydraulic cylinder, comprising:

[0006] A hydraulic cylinder has an oil chamber with a first inlet and a second inlet, and both the first inlet and the second inlet have multiple inlets and outlets.

[0007] The piston rod is rotatably disposed within the oil chamber.

[0008] A vane piston, wherein the vane piston is mounted on the piston rod.

[0009] The deflector blades are mounted on the piston rod and abut against the blade piston.

[0010] The electromagnetic bidirectional valve comprises several electromagnetic bidirectional valves, with each of the first inlet / outlet or the second inlet / outlet being interconnected with one of the electromagnetic bidirectional valves.

[0011] As a further technical solution, it also includes:

[0012] A rotation sensor is mounted on the piston rod to detect the amount of rotation of the piston rod.

[0013] As a further technical solution, there is a gap between the turbulence blade and the inner wall of the oil cavity.

[0014] As a further technical solution, the first inlet / outlet supplies pressurized oil to the oil chamber, and the second inlet / outlet is used to supply a force to the oil chamber to counteract the rotation of the turbulence blades.

[0015] As a further technical solution, there are three of each of the first and second inlets / outlets. One of the first inlets / outlets or the other of the second inlets / outlets is arranged along the radial direction of the cylinder, and the other two of the first inlets / outlets or the other two of the second inlets / outlets are symmetrically arranged along the radial direction of the cylinder and along the tangent direction of the cylinder.

[0016] As a further technical solution, the blade piston has a blade portion and a mounting portion, the mounting portion is disposed on the piston rod, and the turbulence blade abuts against the blade portion.

[0017] As a further technical solution, it also includes:

[0018] The controller is electrically connected to the rotation sensor. When the piston rod slides, the controller is configured such that after the rotation sensor rotates, the controller controls the opening of the electromagnetic bidirectional valve in the liquid inlet direction opposite to the rotation direction of the piston rod, and the opening of the electromagnetic bidirectional valve in the liquid outlet direction in the same direction as the rotation direction of the piston rod.

[0019] As a further technical solution, it also includes:

[0020] The electromagnetic bidirectional valve is connected to the first inlet or the second inlet via the oil pipe.

[0021] As a further technical solution, it also includes:

[0022] A sealing ring is disposed on the side wall of the mounting part and abuts against the inner wall of the oil cavity.

[0023] As a further technical solution, the cylinder is a double-acting cylinder.

[0024] As a further technical solution, the deflector blades are made of metal.

[0025] The working principle and beneficial effects of this utility model are as follows:

[0026] In this invention, the hydraulic cylinder serves as the main load-bearing component of the entire device. Its interior is meticulously designed with an oil chamber, providing space for the flow of hydraulic oil. A first inlet and a second inlet are precisely machined into its wall surface. Specifically, there are multiple first and second inlets / outlets. For example, in this embodiment, a first inlet / outlet is evenly distributed on one side of the cylinder, and a second inlet / outlet is evenly distributed on the opposite side. This multi-inlet / outlet design allows hydraulic oil to enter and exit the oil chamber from multiple directions, laying the foundation for subsequent precise control.

[0027] The piston rod is rotatably mounted within the oil chamber via high-precision bearings, ensuring that it can perform both axial linear reciprocating motion and flexible rotation around its own axis within the cylinder. A vane piston is securely mounted at a specific position on the piston rod. The shape of the vane piston is adapted to the cross-sectional profile of the oil chamber, tightly fitting the inner wall of the chamber to effectively separate the oil chamber and ensure the sealing and stability of the hydraulic oil during operation.

[0028] The turbulence vanes are also mounted on the piston rod and come into close contact with the vane piston. When hydraulic oil flows within the oil chamber, the turbulence vanes disrupt the normal flow path of the hydraulic oil, causing it to form a complex turbulent state. This prevents the piston rod from rotating, which not only helps improve the heat exchange efficiency between the hydraulic oil and various components, preventing excessive oil temperature from affecting the performance of the hydraulic cylinder, but also enhances the stability of the piston rod during sliding to a certain extent, reducing unnecessary rotation.

[0029] Several electromagnetic bidirectional valves are also configured, their number matching the total number of the first and second inlets / outlets. Each of the first or second inlets / outlets is precisely connected to an electromagnetic bidirectional valve, and the two are interconnected. As a key component controlling the entry and exit of hydraulic oil into the oil chamber, the electromagnetic bidirectional valve possesses a fast-response electromagnetic drive system. It can switch the valve's opening and closing state and the oil flow direction in a very short time based on electrical signals from the external control system. When the piston rod needs to extend, the control system sends a command to the corresponding electromagnetic bidirectional valve, causing the valve connected to the first inlet / outlet to open. Hydraulic oil enters the oil chamber through the first inlet / outlet, pushing the vane piston and piston rod outward. Simultaneously, the electromagnetic bidirectional valve connected to the second inlet / outlet adjusts its opening and closing state according to a preset program to coordinate with the piston rod's extension, ensuring pressure balance within the oil chamber. When the piston rod rotates, the flow state inside the oil chamber is adjusted by changing the opening of the electromagnetic bidirectional valves at different positions, ensuring piston rod stability. Conversely, when the piston rod needs to retract, the electromagnetic bidirectional valve switches its operating state according to the opposite logic, achieving smooth piston rod retraction. Attached Figure Description

[0030] The preferred embodiments will be described below in a clear and easy-to-understand manner, in conjunction with the accompanying drawings, to further explain the above-mentioned characteristics, technical features, advantages and implementation methods of this utility model.

[0031] Figure 1 This is a schematic diagram of the structure of this utility model;

[0032] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0033] In the diagram: cylinder-1, oil chamber-101, first inlet-outlet-102, second inlet-outlet-103, piston rod-2, vane piston-3, turbulence vane-4, electromagnetic two-way valve-5, clearance-104, vane section-301, mounting section-302, oil pipe-6, sealing ring-7. Detailed Implementation

[0034] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0035] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0036] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0037] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0038] Reference Figures 1-2 The first embodiment of this utility model proposes an anti-rotation hydraulic cylinder, including a cylinder 1, which has an oil chamber 101. The oil chamber 101 has a first inlet / outlet 102 and a second inlet / outlet 103, and there are several of the first inlet / outlet 102 and the second inlet / outlet 103. A piston rod 2 is rotatably disposed in the oil chamber 101. A vane piston 3 is disposed on the piston rod 2. A turbulence vane 4 is disposed on the piston rod 2 and abuts against the vane piston 3. There are several electromagnetic two-way valves 5, and each of the first inlet / outlet 102 or the second inlet / outlet 103 is interconnected with an electromagnetic two-way valve 5.

[0039] In this embodiment, the hydraulic cylinder 1 serves as the main load-bearing component of the entire device. Its interior is meticulously designed with an oil chamber 101, providing space for the flow of hydraulic oil. A first inlet / outlet 102 and a second inlet / outlet 103 are precisely machined into its walls. Specifically, there are multiple first inlets / outlets 102 and second inlets / outlets 103. For example, in this embodiment, four first inlets / outlets 102 are evenly distributed on one side of the hydraulic cylinder 1, and four second inlets / outlets 103 are evenly distributed on the opposite side. This multi-inlet / outlet design allows hydraulic oil to enter and exit the oil chamber 101 from multiple directions, laying the foundation for subsequent precise control.

[0040] The piston rod 2 is rotatably mounted within the oil chamber 101 via high-precision bearings, ensuring that it can perform linear reciprocating motion along the axial direction and rotate flexibly around its own axis within the cylinder 1. A vane piston 3 is securely installed at a specific position on the piston rod 2. The shape of the vane piston 3 is adapted to the cross-sectional profile of the oil chamber 101, closely fitting the inner wall of the oil chamber to effectively separate the oil chamber and ensure the sealing and stability of the hydraulic oil during operation.

[0041] The turbulence vane 4 is also mounted on the piston rod 2 and comes into close contact with the vane piston 3. When hydraulic oil flows in the oil chamber 101, the turbulence vane 4 can disrupt the normal flow path of the hydraulic oil, causing the oil to form a complex turbulent state. This prevents the piston rod 2 from rotating, which not only helps to improve the heat exchange efficiency between the hydraulic oil and various components and avoids excessive oil temperature affecting the performance of the hydraulic cylinder, but also enhances the stability of the piston rod 2 during the sliding process to a certain extent and reduces unnecessary rotation.

[0042] Several electromagnetic two-way valves 5 are also provided, and their number matches the total number of the first inlet / outlet 102 and the second inlet / outlet 103. Each first inlet / outlet 102 or second inlet / outlet 103 is precisely connected to an electromagnetic two-way valve 5, and the two are interconnected. As a key component for controlling the entry and exit of hydraulic oil into and out of the oil chamber 101, the electromagnetic two-way valve 5 has a fast-response electromagnetic drive system, which can switch the opening and closing state of the valve and the direction of oil flow in a very short time according to the electrical signal transmitted from the external control system. When piston rod 2 needs to extend, the control system sends a command to the corresponding solenoid two-way valve 5, causing the solenoid two-way valve 5, which is connected to the first inlet / outlet 102, to open. Hydraulic oil enters the oil chamber 101 through the first inlet / outlet 102, pushing the vane piston 3 and piston rod 2 outward. At the same time, the solenoid two-way valve 5, which is connected to the second inlet / outlet 103, adjusts its opening and closing state in a timely manner according to a preset program to coordinate with the extension action of piston rod 2, ensuring pressure balance within the oil chamber 101. When piston rod 2 rotates, the flow state inside the oil chamber 1 is adjusted by changing the opening of the solenoid two-way valve 5 at different positions, ensuring the stability of piston rod 2. Conversely, when piston rod 2 needs to retract, the solenoid two-way valve 5 switches its working state according to the opposite logic, achieving smooth retraction of piston rod 2.

[0043] Furthermore, it also includes a rotation sensor, which is mounted on the piston rod 2 to detect the rotation of the piston rod 2.

[0044] In this embodiment, a high-precision fiber optic gyroscope is selected as the core detection component for the rotation sensor. It has extremely high accuracy and can accurately measure minute angle changes, with a measurement accuracy of ±0.01° / s. The sensor is entirely encapsulated at the end of the piston rod 2.

[0045] Furthermore, there is a gap 104 between the turbulence blade 4 and the inner wall of the oil cavity 101.

[0046] In this embodiment, the gap 104 between the baffle vane 4 and the inner wall of the oil chamber 101 ensures that the baffle vane 4 stably abuts against the vane piston 3, providing good sealing and guiding functions, while also allowing a certain amount of hydraulic oil to flow in the gap 104. When the hydraulic cylinder is working, the hydraulic oil entering and exiting from the first inlet 102 and the second inlet 103, part of which pushes the vane piston 3 and drives the piston rod 2 along the normal path, and the other part flows into the gap 104. Due to the existence of the gap 104, a "hydraulic buffer layer" effect is formed, which can effectively reduce the direct collision and friction that may occur between the baffle vane 4 and the inner wall of the oil chamber 101 during high-speed movement, reduce noise, and extend the service life of the baffle vane 4.

[0047] Furthermore, this gap 104 provides an additional flow channel for hydraulic oil, which helps optimize the pressure distribution within the oil chamber. During the rapid retraction of the piston rod 2, the pressure at the end of the oil chamber 101 near the retraction direction of the piston rod 2 will rise rapidly. At this time, the gap 104 can guide some of the high-pressure oil to diffuse to the other end of the oil chamber 101, balancing the pressure and avoiding problems such as uneven force on the vane piston 3 and piston rod 2 jamming caused by excessive local pressure. This ensures the smooth operation of the hydraulic cylinder and reduces the possibility of piston rod 2 rotation through the corresponding buffering force.

[0048] Furthermore, there are three first inlet / outlet 102 and three second inlet / outlet 103. One first inlet / outlet 102 or second inlet / outlet 103 is arranged along the radial direction of the oil cylinder 1, and the other two first inlet / outlet 102 or second inlet / outlet 103 are symmetrically arranged along the radial direction of the oil cylinder 1 and along the tangent direction of the oil cylinder 1.

[0049] In this embodiment, there are three of each of the first inlet / outlet 102 and the second inlet / outlet 103. This layout fully considers the flow distribution, pressure balance, and coordinated control of the movement of the piston rod 2 in the hydraulic oil inlet / outlet chamber 101. One of the first inlet / outlet 102 or the second inlet / outlet 103 is located along the radial direction of the cylinder 1. This inlet / outlet primarily serves to quickly adjust the basic pressure within the hydraulic oil chamber 101 during operation.

[0050] The other two inlets / outlets, 102 or 103, are symmetrically arranged along the radial direction of cylinder 1 and tangentially to cylinder 1. The ingenuity of these two tangential inlets / outlets lies in their ability to precisely fine-tune the flow direction and volume of hydraulic oil during the movement of piston rod 2, based on its rotational tendency and pressure changes within the oil chamber 101. When piston rod 2 rotates slightly due to external force, by controlling the opening and closing degree of these two tangential inlets / outlets and the amount of hydraulic oil entering and exiting, the tangential force of the hydraulic oil applies a counter-torque to piston rod 2, effectively suppressing its rotation and ensuring the accuracy of its trajectory. This is akin to adding a pair of precise "hydraulic rudders" to the movement of piston rod 2.

[0051] Furthermore, the blade piston 3 has a blade portion 301 and a mounting portion 302. The mounting portion 302 is disposed on the piston rod 2, and the turbulence blade 4 abuts against the blade portion 301.

[0052] In this embodiment, the mounting portion 302 of the blade piston 3 is tightly fixed to the piston rod 2, ensuring that the two form a stable power transmission unit. When hydraulic oil pushes the blade portion 301, the force can be transmitted to the piston rod 2 without loss through the mounting portion 302, avoiding power interruption or loss due to loose connection. This makes the extension and retraction of the piston rod 2 more stable and powerful, ensuring the continuity of equipment operation. It performs excellently in scenarios requiring continuous and stable power, such as heavy machinery lifting and large mold opening and closing.

[0053] The unique design of the blade section 301, such as its arc-shaped contour and surface texture, cleverly guides the flow direction of the hydraulic oil, allowing it to push the blade piston 3 more smoothly. At the same time, the close cooperation between the turbulence-deflecting blade 4 and the blade section 301 promotes the formation of an orderly circulation of hydraulic oil between them, reducing turbulence, lowering oil flow resistance, and improving the response speed of the hydraulic system. This allows the anti-rotation hydraulic cylinder to operate efficiently under conditions such as rapid start-up and frequent reversal, making it suitable for high-speed operation in automated production lines.

[0054] Furthermore, it also includes a controller. The rotation sensor is electrically connected to the controller. When the piston rod 2 slides, the controller is configured such that after the rotation sensor rotates, the controller controls the opening of the electromagnetic bidirectional valve 5, which has the liquid inlet direction opposite to the rotation direction of the piston rod 2, and the electromagnetic bidirectional valve 5, which has the liquid outlet direction in the same direction as the rotation direction of the piston rod 2, to open.

[0055] In this embodiment, when the piston rod 2 rotates during sliding, the rotation sensor immediately transmits the rotation signal to the controller. The controller reacts quickly, precisely controlling the opening and closing state of the electromagnetic bidirectional valve 5 according to a preset program. By opening the electromagnetic bidirectional valve 5, whose inlet direction is opposite to the rotation direction of the piston rod 2, hydraulic oil flows in at a suitable pressure and flow rate, applying a reverse torque to the piston rod 2 and preventing it from rotating further. Simultaneously, the electromagnetic bidirectional valve 5, whose outlet direction is the same as the rotation direction of the piston rod 2, is opened, creating a smooth channel for the hydraulic oil to flow out, thus assisting in adjusting the posture of the piston rod 2. This dynamic real-time correction mechanism ensures that the piston rod 2 maintains minimal rotational deviation throughout its entire working stroke.

[0056] The closed-loop control system, consisting of the controller, rotation sensor, and solenoid bidirectional valve 5, endows the entire device with excellent adaptive capabilities. Regardless of whether the piston rod 2 is subjected to uneven impacts from external loads, minor loosening of the mechanical structure itself, or pressure fluctuations in the hydraulic system, the system can quickly sense and automatically adjust the rotation.

[0057] Furthermore, it also includes an oil pipe 6, through which the electromagnetic two-way valve 5 is connected to the first inlet / outlet 102 or the second inlet / outlet 103.

[0058] In this embodiment, the introduction of the oil pipe 6 provides more flexible layout possibilities for the entire hydraulic system. It makes the connection between the solenoid two-way valve 5 and the first inlet / outlet 102 or the second inlet / outlet 103 more convenient and flexible. During equipment installation and layout, the solenoid two-way valve 5 can be placed in a more suitable position according to actual space requirements and the overall system architecture, rather than being limited to being adjacent to the inlet / outlet. This provides greater scope for system design and optimization, facilitates compact and modular design of the equipment, reduces the system's footprint, and improves the equipment's adaptability in different application scenarios.

[0059] As a key component connecting the solenoid two-way valve 5 and the inlet / outlet, the oil pipe 6 can isolate and buffer pressure shocks in the hydraulic system to a certain extent. When the hydraulic system experiences instantaneous high pressure or water hammer due to sudden pressure changes, valve switching, or other operations, the oil pipe 6 can reduce the direct impact on the solenoid two-way valve 5 and the inlet / outlet through its own elastic deformation and the buffering effect of the hydraulic oil, thereby reducing the risk of equipment damage and extending the service life of the equipment.

[0060] Furthermore, it also includes a sealing ring 7, which is disposed on the side wall of the mounting part 302 and abuts against the inner wall of the oil cavity 101.

[0061] In this embodiment, the sealing ring 7 is installed on the side wall of the mounting portion 302 of the vane piston 3 and abuts against the inner wall of the oil chamber 101, forming a reliable sealing barrier. It effectively prevents hydraulic oil from leaking through the gap between the vane piston 3 and the inner wall of the oil chamber 101, ensuring that the hydraulic oil in the oil chamber 101 is in a relatively sealed state. This is crucial for maintaining pressure stability within the hydraulic system, avoiding system pressure drops due to hydraulic oil leakage, thereby ensuring that the anti-rotation hydraulic cylinder can stably output sufficient power during operation, ensuring that the piston rod 2 extends and retracts according to the predetermined stroke and force.

[0062] Under high-pressure working conditions, the sealing ring 7 can withstand a high pressure difference, ensuring that there will be no leakage even under high working pressure, thereby improving the working reliability and safety of the anti-rotation hydraulic cylinder.

[0063] Because the sealing ring 7 prevents hydraulic oil leakage, it avoids the corrosion and contamination of other components by the hydraulic oil, thereby extending the service life of other components inside the anti-rotation hydraulic cylinder. Hydraulic oil may contain impurities and additives; if leaked, it can cause corrosion and wear to the inner wall of cylinder 1, piston rod 2, and other precision components. The sealing effect reduces the risk of these components being exposed to hydraulic oil, lowering the probability of equipment failure due to oil corrosion and wear, and reducing equipment maintenance costs and repair frequency.

[0064] Furthermore, cylinder 1 is a double-acting cylinder.

[0065] In this embodiment, as a double-acting cylinder, the hydraulic cylinder 1 can provide driving force in two directions. This means that the piston rod 2 can both extend and retract, and both movements can be driven by the pressure of hydraulic oil. When hydraulic oil is injected into the oil chamber 101 from the first inlet 102, it pushes the piston rod 2 to extend outward; while when hydraulic oil is injected into the oil chamber 101 from the second inlet 103, it retracts the piston rod 2 inward. This bidirectional driving characteristic greatly increases the functionality of the anti-rotation hydraulic cylinder, allowing it to flexibly adjust the position of the piston rod 2 according to different work requirements in practical applications. For example, in the reciprocating motion mechanism of automated equipment, it can realize the propulsion and retraction of materials, or in the operation of a robotic arm, it can realize the extension and retraction of the arm, improving the operational flexibility and applicability of the equipment.

[0066] Furthermore, the spoiler blade 4 is made of metal.

[0067] In this embodiment, the metal material endows the baffle blade 4 with extremely high mechanical strength, enabling it to withstand frequent impacts from the high-pressure hydraulic oil in the oil chamber 101 and long-term, high-intensity frictional contact with the blade piston 3. During the long-term operation of the hydraulic cylinder, whether facing the drastic hydraulic changes caused by the rapid extension and retraction of the piston rod 2, or dealing with abnormal pressure peaks that may occur under complex working conditions, the metal baffle blade 4 can remain stable and is not easily deformed or damaged, greatly extending the service life of the baffle blade 4, reducing downtime and maintenance costs caused by frequent blade replacement, and ensuring the continuous and stable operation of the equipment.

[0068] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An anti-rotation hydraulic cylinder, characterized in that, include: The hydraulic cylinder (1) has an oil chamber (101), which has a first inlet (102) and a second inlet (103). Both the first inlet (102) and the second inlet (103) are multiple. Piston rod (2), which is rotatably disposed within the oil chamber (101), A blade piston (3) is mounted on the piston rod (2). A turbulence-deflecting blade (4) is disposed on the piston rod (2) and abuts against the blade piston (3). There are several electromagnetic two-way valves (5), and each of the first inlet (102) or the second inlet (103) is connected to one of the electromagnetic two-way valves (5).

2. The anti-rotation hydraulic cylinder according to claim 1, characterized in that, Also includes: A rotation sensor is disposed on the piston rod (2) to detect the rotation of the piston rod (2).

3. The anti-rotation hydraulic cylinder according to claim 1, characterized in that, There is a gap (104) between the turbulence blade (4) and the inner wall of the oil cavity (101).

4. The anti-rotation hydraulic cylinder according to claim 1, characterized in that, The first inlet (102) supplies pressurized oil to the oil chamber (101), and the second inlet (103) provides a force to the oil chamber (101) to counteract the rotation of the turbulence blade (4).

5. The anti-rotation hydraulic cylinder according to claim 1, characterized in that, There are three first inlet / outlet (102) and three second inlet / outlet (103). One first inlet / outlet (102) or one second inlet / outlet (103) is arranged along the radial direction of the oil cylinder (1), and the other two first inlet / outlet (102) or the other two second inlet / outlet (103) are symmetrically arranged along the radial direction of the oil cylinder (1) and along the tangent direction of the oil cylinder (1).

6. The anti-rotation hydraulic cylinder according to claim 1, characterized in that, The blade piston (3) has a blade portion (301) and a mounting portion (302). The mounting portion (302) is disposed on the piston rod (2), and the turbulence blade (4) abuts against the blade portion (301).

7. The anti-rotation hydraulic cylinder according to claim 2, characterized in that, Also includes: The controller, wherein the rotation sensor is electrically connected to the controller.

8. The anti-rotation hydraulic cylinder according to claim 1, characterized in that, Also includes: The oil pipe (6) is connected to the first inlet (102) or the second inlet (103) through the electromagnetic two-way valve (5).

9. An anti-rotation hydraulic cylinder according to claim 6, characterized in that, Also includes: A sealing ring (7) is disposed on the side wall of the mounting part (302) and abuts against the inner wall of the oil cavity (101).

10. An anti-rotation hydraulic cylinder according to claim 1, characterized in that, The hydraulic cylinder (1) is a double-acting cylinder.

Images