High-speed high-precision servo hydraulic oil cylinder

Abstract

The utility model discloses a high-speed and high-precision servo hydraulic oil cylinder, which relates to the technical field of servo hydraulic oil cylinders, and comprises a servo hydraulic oil cylinder body, a heat preservation mechanism arranged on the outer side of the servo hydraulic oil cylinder body, and a heat preservation mechanism arranged on the outer side of the servo hydraulic oil cylinder body, the heat preservation mechanism is used for increasing the temperature of oil in the servo hydraulic oil cylinder body and comprises a heat preservation bin containing high-temperature oil, the heat preservation bin communicates with a heat preservation pipe through a connecting pipeline and an extending pipeline, and the heat preservation pipe wraps the outer side of the circulating pipeline. A water storage cavity containing oil and a hollow cavity internally provided with a spiral electric heating wire are formed in the heat preservation bin, and the electric heating wire is electrically connected with an external power source. According to the high-speed and high-precision servo hydraulic oil cylinder, the temperature of circulating oil in the oil cylinder can be increased, high-speed and high-precision work of the servo hydraulic oil cylinder under the cold condition is facilitated, and the application range is wide.

Description

Technical Field

[0001] This utility model relates to the field of servo hydraulic cylinder technology, specifically a high-speed, high-precision servo hydraulic cylinder. Background Technology

[0002] In the fields of modern industrial automation and mechanical manufacturing, hydraulic cylinders are widely used as important actuators in various mechanical equipment to achieve linear or reciprocating motion. With the advancement of technology and the continuous improvement of industrial demands, the performance requirements for hydraulic cylinders are also getting higher and higher, especially in some applications that require high-speed and high-precision motion, such as CNC machine tools, precision machining equipment, and automated production lines.

[0003] The working principle of a servo hydraulic cylinder is based on the close integration of a servo control system and a hydraulic transmission system. The servo control system receives external control signals and precisely controls the speed and position of the hydraulic cylinder to achieve high-precision motion control. The hydraulic transmission system uses the pressure of hydraulic oil to transmit energy and drive the cylinder piston to perform linear motion. This combination allows the servo hydraulic cylinder to maintain the advantages of high power and high torque of the hydraulic transmission system while possessing the high precision and high response characteristics of the servo system.

[0004] Hydraulic oil, as the working medium of servo hydraulic cylinders, has a crucial impact on the cylinder's performance. Under normal circumstances, hydraulic oil has good lubricity, sealing properties, and stability, ensuring the normal operation of the cylinder. However, when the ambient temperature decreases, the viscosity of the hydraulic oil increases significantly, and its fluidity deteriorates. When the viscosity increases to a certain extent, the flow of hydraulic oil within the cylinder becomes very difficult, or even stops completely. This not only affects the cylinder's response speed and positioning accuracy but may also cause the cylinder to fail to start or move sluggishly, seriously affecting the normal operation of the equipment.

[0005] Therefore, in order to address the above problems, the applicant needs to design a high-speed, high-precision servo hydraulic cylinder to solve the problem. Utility Model Content

[0006] The purpose of this invention is to provide a high-speed, high-precision servo hydraulic cylinder to solve the problems mentioned in the background section.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a high-speed, high-precision servo hydraulic cylinder, comprising a servo hydraulic cylinder body, and a circulation pipe one and a circulation pipe two for oil circulation are provided on the outer side of the servo hydraulic cylinder body.

[0008] It also includes: a heat preservation mechanism disposed on the outside of the servo hydraulic cylinder body, and the heat preservation mechanism is used to increase the oil temperature inside the servo hydraulic cylinder body. The heat preservation mechanism includes a heat preservation chamber containing high-temperature oil inside, and a connecting pipe is fixedly connected to the heat preservation chamber. The end of the connecting pipe away from the heat preservation chamber is fixedly connected to a heat preservation pipe one, and the heat preservation pipe one covers the outside of the circulation pipe one. An extension pipe is fixedly connected to the heat preservation pipe one, and the end of the extension pipe away from the heat preservation pipe one is connected to a heat preservation pipe two covering the outside of the circulation pipe two. A connecting pipe is fixedly connected to the heat preservation pipe two, and the end of the connecting pipe away from the heat preservation pipe two is fixedly connected to the heat preservation chamber.

[0009] Furthermore, the interior of the insulated chamber is equipped with a partition plate, which divides the interior of the insulated chamber into a water storage cavity containing oil and a hollow cavity.

[0010] Through the above structural design, the insulation chamber is divided into a water storage chamber and a hollow chamber by a partition plate, which realizes the physical isolation of the heat transfer path and reduces the heat loss rate.

[0011] Furthermore, a spiral heating wire is installed inside the hollow cavity, and the heating wire is electrically connected to an external power source.

[0012] Through the above structural design, the heating wire facilitates the heating of the oil in the water storage chamber. The spiral structure increases the effective length of the heating wire, and combined with the turbulence effect, the oil heating rate is high.

[0013] Furthermore, a movable plate is provided inside the water storage cavity, and the movable plate is slidably connected to the inner wall of the water storage cavity. A movable connecting rod is fixedly provided on one side of the movable plate, and the end of the connecting rod away from the movable plate extends slidably to the outside of the heat preservation chamber by means of a mechanical seal.

[0014] With the above structural design, the movement of the connecting rod facilitates the movement of the movable plate within the water storage chamber. The movement of the movable plate will change the water pressure on both sides, thereby enabling the high-temperature oil to circulate.

[0015] Furthermore, the end of the connecting rod away from the movable plate is fixedly connected to the output end of the servo hydraulic cylinder body, and the servo hydraulic cylinder body drives the connecting rod to reciprocate.

[0016] With the above structural design, when in use, the start of the servo hydraulic cylinder body will drive its output end to reciprocate, thereby driving the connecting rod to reciprocate.

[0017] Furthermore, a liquid inlet pipe is fixedly installed on one side of the insulated chamber, and a valve for opening or closing the liquid inlet pipe is installed on the liquid inlet pipe.

[0018] With the above structural design, the valve can be easily opened or closed during use, and the inlet pipe can be easily replenished with oil into the insulation chamber.

[0019] Compared with the prior art, the beneficial effects of this utility model are: the high-speed, high-precision servo hydraulic cylinder can increase the temperature of the circulating oil inside the cylinder, which will facilitate the high-speed, high-precision operation of the servo hydraulic cylinder under cold conditions, and has a wide range of applications. The specific details are as follows:

[0020] This high-speed, high-precision servo hydraulic cylinder utilizes a heating wire to raise the temperature of the oil in the storage chamber. When the servo hydraulic cylinder starts, the output end drives the connecting rod to reciprocate. This reciprocating movement of the connecting rod drives the movable plate to move, which in turn changes the oil pressure on both sides. When the oil enters the connecting pipe, it easily flows through the insulation pipe 1, the extension pipe, the insulation pipe 2, and the connecting pipe into the storage chamber. This facilitates the circulation of the high-temperature oil, thereby increasing the temperature of the circulating oil inside the cylinder. This allows the servo hydraulic cylinder to operate at high speed and high precision under cold conditions, making it widely applicable. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0022] Figure 2 This utility model Figure 1 Enlarged structural diagram at point A;

[0023] Figure 3 This is a three-dimensional structural diagram of the insulation mechanism of this utility model;

[0024] Figure 4 This is a cross-sectional view of the insulated compartment of this utility model.

[0025] In the diagram: 1. Servo hydraulic cylinder body; 2. Insulation mechanism; 10. Circulation pipe one; 11. Circulation pipe two; 12. Connecting pipe; 13. Insulation pipe one; 14. Extension pipe; 15. Insulation pipe two; 16. Connecting pipe; 20. Insulation chamber; 21. Liquid inlet pipe; 22. Connecting rod; 23. Divider plate; 24. Water storage chamber; 25. Hollow cavity; 26. Heating wire; 27. Movable plate. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] like Figures 1-4 As shown, this utility model discloses a high-speed, high-precision servo hydraulic cylinder, including a servo hydraulic cylinder body 1. A circulation pipe 10 and a circulation pipe 11 for oil circulation are provided on the outside of the servo hydraulic cylinder body 1. It also includes a heat preservation mechanism 2 located on the outside of the servo hydraulic cylinder body 1, used to increase the oil temperature inside the servo hydraulic cylinder body 1. The heat preservation mechanism 2 includes a heat preservation chamber 20 containing high-temperature oil. A connecting pipe 12 is fixedly connected to the heat preservation chamber 20. A heat preservation pipe 13 is fixedly connected to the end of the connecting pipe 12 away from the heat preservation chamber 20. The heat preservation pipe 13 covers the outside of the circulation pipe 10. An extension pipe 14 is fixedly connected to the heat preservation pipe 13. A heat preservation pipe 15 covering the outside of the circulation pipe 11 is connected to the end of the extension pipe 14 away from the heat preservation pipe 13. A connecting pipe 16 is fixedly connected to the heat preservation pipe 15, with the end of the connecting pipe 16 away from the heat preservation pipe 15 fixedly connected to the heat preservation chamber 20.

[0028] The heat insulation chamber 20 is equipped with a partition plate 23, which divides the heat insulation chamber 20 into a water storage chamber 24 containing oil and a hollow chamber 25. By dividing the heat insulation chamber 20 into the water storage chamber 24 and the hollow chamber 25 through the partition plate 23, the heat energy transfer path is physically isolated, and the heat loss rate is reduced.

[0029] A spiral heating wire 26 is installed inside the hollow cavity 25 and is electrically connected to an external power source. The heating wire 26 facilitates the heating of the oil in the water storage cavity 24. The spiral structure increases the effective length of the heating wire 26, and combined with the turbulence effect, the oil heats up at a high rate. A movable plate 27 is installed inside the water storage cavity 24 and is slidably connected to the inner wall of the water storage cavity 24. A movable connecting rod 22 is fixedly installed on one side of the movable plate 27, and the end of the connecting rod 22 away from the movable plate 27 is connected by a machine. The mechanical seal extends to the outside of the insulation chamber 20. The movement of the connecting rod 22 facilitates the movement of the movable plate 27 within the water storage chamber 24. The movement of the movable plate 27 changes the water pressure on both sides, thereby causing the high-temperature oil to circulate. The end of the connecting rod 22 away from the movable plate 27 is fixedly connected to the output end of the servo hydraulic cylinder body 1. The servo hydraulic cylinder body 1 drives the connecting rod 22 to reciprocate. In use, the start of the servo hydraulic cylinder body 1 will drive its output end to reciprocate, thereby driving the connecting rod 22 to reciprocate.

[0030] A liquid inlet pipe 21 is fixedly installed on one side of the heat preservation chamber 20, and a valve for opening or closing the liquid inlet pipe 21 is provided on the liquid inlet pipe 21. In use, the valve can easily open or close the liquid inlet pipe 21, and oil can be easily added to the heat preservation chamber 20 through the liquid inlet pipe 21.

[0031] Working principle: When using this high-speed, high-precision servo hydraulic cylinder, the heating wire 26 is used to heat the oil in the water storage chamber 24. When the servo hydraulic cylinder body 1 is started, the output end will drive the connecting rod 22 to move back and forth. The reciprocating movement of the connecting rod 22 will drive the movable plate 27 to move. The movement of the movable plate 27 will change the oil pressure on both sides. When the oil enters the connecting pipe 12, the oil in the connecting pipe 12 can easily enter the water storage chamber 24 through the insulation pipe 13, the extension pipe 14, the insulation pipe 25, and the connecting pipe 16. This will facilitate the circulation of the high-temperature oil, thereby increasing the temperature of the circulating oil inside the cylinder. This will facilitate the high-speed, high-precision operation of the servo hydraulic cylinder under cold conditions and has a wide range of applications.

[0032] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A high-speed, high-precision servo hydraulic cylinder, comprising a servo hydraulic cylinder body (1), and a circulation pipe one (10) and a circulation pipe two (11) for oil circulation flow are provided on the outside of the servo hydraulic cylinder body (1). Its features are, Also includes: A heat preservation mechanism (2) is provided on the outside of the servo hydraulic cylinder body (1), and the heat preservation mechanism (2) is used to increase the oil temperature inside the servo hydraulic cylinder body (1). The heat preservation mechanism (2) includes a heat preservation chamber (20) containing high-temperature oil inside, and a connecting pipe (12) is fixedly connected to the heat preservation chamber (20). A heat preservation pipe (13) is fixedly connected to one end of the connecting pipe (12) away from the heat preservation chamber (20), and the heat preservation pipe (13) covers the outside of the circulation pipe (10). An extension pipe (14) is fixedly connected to the heat preservation pipe (13), and a heat preservation pipe (15) covering the outside of the circulation pipe (11) is connected to one end of the extension pipe (14) away from the heat preservation pipe (13). A connecting pipe (16) is fixedly connected to the heat preservation pipe (15), and the end of the connecting pipe (16) away from the heat preservation pipe (15) is fixedly connected to the heat preservation chamber (20).

2. The high-speed, high-precision servo hydraulic cylinder according to claim 1, characterized in that: The heat preservation chamber (20) is provided with a partition plate (23), which divides the heat preservation chamber (20) into a water storage chamber (24) containing oil and a hollow chamber (25).

3. The high-speed, high-precision servo hydraulic cylinder according to claim 2, characterized in that: The hollow cavity (25) is provided with a spiral heating wire (26), and the heating wire (26) is electrically connected to an external power source.

4. A high-speed, high-precision servo hydraulic cylinder according to claim 2, characterized in that: The water storage chamber (24) is provided with a movable plate (27), and the movable plate (27) is slidably connected to the inner wall of the water storage chamber (24). A movable connecting rod (22) is fixedly provided on one side of the movable plate (27), and the end of the connecting rod (22) away from the movable plate (27) is slidably extended to the outside of the heat preservation chamber (20) by means of a mechanical seal.

5. A high-speed, high-precision servo hydraulic cylinder according to claim 4, characterized in that: The end of the connecting rod (22) away from the movable plate (27) is fixedly connected to the output end of the servo hydraulic cylinder body (1), and the servo hydraulic cylinder body (1) drives the connecting rod (22) to reciprocate.

6. A high-speed, high-precision servo hydraulic cylinder according to claim 1, characterized in that: A liquid inlet pipe (21) is fixedly installed on one side of the heat preservation chamber (20), and a valve for opening or closing the liquid inlet pipe (21) is provided on the liquid inlet pipe (21).

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