Hydraulic cylinder with temperature regulation function

Abstract

The utility model discloses a hydraulic oil cylinder with temperature regulation function relates to hydraulic oil cylinder field, including the sealed shell, the inner wall of sealed shell upside and downside all are fixedly connected with the oil tank, the inner wall middle part of sealed shell is fixedly connected with the fixed ring, the top of sealed shell is fixedly connected with the cylinder cover, the bottom of cylinder cover is fixedly connected with the cylinder barrel, the inner wall of fixed ring is provided with temperature control mechanism, the inner wall of cylinder cover is provided with buffer mechanism, and buffer mechanism is used for buffering, and temperature control mechanism includes hollow column. In the utility model, low temperature, paraffin board volume is small, and spring contracts, drives short column and sliding assembly to keep initial position, when the oil temperature in cylinder barrel rises, and the heat is transmitted to paraffin board and makes it melt and expand, and the positioning plate is pushed to extrude spring, and sliding U -shaped seat is lengthened in sliding plate, and the rotating plate is pushed to rotate, and through gear shaft drive rotating gear and transmission gear rotate, make a plurality of heat dissipation plate unfold to increase the heat dissipation area, and the heat dissipation performance is promoted.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic cylinders, specifically a hydraulic cylinder with temperature regulation function. Background Technology

[0002] Hydraulic cylinders, as the core actuators in hydraulic systems, convert hydraulic energy into linear mechanical energy. They are widely used in various fields including engineering machinery, manufacturing, aerospace, agricultural machinery, automotive, shipbuilding, marine engineering, and the energy industry. Their working principle is based on Pascal's Law: in a closed hydraulic system, the pressure applied to the fluid is evenly distributed to all parts of the system. When hydraulic oil is pumped into the cylinder, the hydraulic pressure pushes the piston to form a linear motion, which in turn drives the piston rod to push the load to complete the operation. By adjusting the flow and pressure of the hydraulic oil through hydraulic valves, the reciprocating motion, speed regulation, and precise force control of the cylinder can be achieved. Structurally, a hydraulic cylinder mainly consists of a cylinder barrel, cylinder head, piston, piston rod, and sealing devices. The cylinder barrel serves as the main frame, containing the hydraulic oil and bearing the system pressure. The cylinder head provides sealing protection at both ends of the cylinder barrel. The piston transmits hydraulic pressure through sliding. The piston rod connects the piston to external equipment to transmit power. The sealing devices fill the gaps between components to prevent oil leakage. All components work together to ensure stable operation of the cylinder.

[0003] As industrial operations become increasingly complex, hydraulic cylinders often operate under high intensity, long-term conditions, and extreme temperature and humidity environments. In such cases, the temperature stability of the hydraulic oil inside the cylinder becomes a key factor affecting its performance. Against this backdrop, hydraulic cylinders with temperature regulation functions have emerged. These cylinders are a combination of traditional hydraulic cylinders and temperature control technology. They are defined as hydraulic actuators that add a temperature detection and control module to the basic structure of a conventional hydraulic cylinder, capable of sensing and actively adjusting the temperature of the hydraulic oil inside the cylinder in real time to maintain it within a suitable operating range. Early hydraulic cylinders with temperature regulation functions suffered from insufficient control precision and slow response speed. Some designs using fixed cooling structures cannot dynamically adjust cooling efficiency according to oil temperature changes. Insufficient cooling during high-intensity operation will still lead to excessively high oil temperature, while excessive cooling will increase the viscosity of hydraulic oil, causing system instability. To address these drawbacks, existing technologies use a combination of semiconductor heat exchange and multi-point temperature measurement. The temperature sensor collects oil temperature signals from different areas inside the cylinder in real time and transmits them to the controller. The controller drives the semiconductor heat exchanger to work. Its cold end contacts the sealed space inside the cylinder to achieve cooling, while the hot end contacts the outside of the cylinder and works with the heat dissipation equipment to accelerate heat dissipation. However, existing technologies have complex structures, poor heat dissipation effects, and low practicality. Utility Model Content

[0004] This invention provides a hydraulic cylinder with temperature regulation function, which solves the problems of complex structure, poor heat dissipation and low practicality of the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A hydraulic cylinder with temperature regulation function includes a sealed outer shell, oil tanks fixedly connected to the upper and lower sides of the inner wall of the sealed outer shell, a fixing ring fixedly connected to the middle of the inner wall of the sealed outer shell, a cylinder head fixedly connected to the top of the sealed outer shell, a cylinder barrel fixedly connected to the bottom of the cylinder head, a temperature control mechanism provided on the inner wall of the fixing ring, and a buffer mechanism provided on the inner wall of the cylinder head for buffering; the temperature control mechanism includes a hollow column, the rear side of the hollow column is fixedly connected to the inner wall of the fixing ring, a spring is slidably connected to the inner wall of the hollow column, a short column is slidably connected to the inner wall of the hollow column, and a positioning component is provided on the rear side of the short column.

[0006] As a preferred technical solution of this utility model The buffer mechanism includes a piston rod, the outer wall of which is slidably connected to the inner wall of the cylinder head, a guide sleeve slidably connected to the lower side of the outer wall of the piston rod, a buffer plunger fixedly connected to the middle of the outer wall of the piston rod, and an adjustment assembly provided on the inner wall of the cylinder head.

[0007] As a preferred technical solution of this utility model The positioning assembly includes a positioning plate, the front side of which is fixedly connected to the rear side of the short column, a paraffin plate is slidably connected to the rear side of the positioning plate, and sliding components are provided on both the upper and lower sides of the positioning plate.

[0008] As a preferred technical solution of this utility model The sliding assembly includes a sliding plate, the bottom of which is fixedly connected to the top of a positioning plate. A sliding U-shaped seat is slidably connected to the inner wall of the sliding plate, and a rotating assembly is provided on the top of the sliding U-shaped seat.

[0009] As a preferred technical solution of this utility model The rotating assembly includes a rotating plate, the bottom of which is rotatably connected to the top of the sliding U-shaped seat. A gear shaft is fixedly connected to the inner wall of the rotating plate, and a transmission assembly is provided on the outer wall of the gear shaft.

[0010] As a preferred technical solution of this utility model The transmission assembly includes a rotating gear, the outer wall of which meshes with the outer wall of the gear shaft, a transmission gear meshing with the outer wall of the rotating gear, and a heat sink fixedly connected to the inner wall of the transmission gear.

[0011] As a preferred technical solution of this utility model The adjustment assembly includes a buffer chamber, which is provided on the inner wall of the cylinder head, and an adjustable outlet is provided on the right side of the inner wall of the cylinder head.

[0012] This utility model has the following advantages: At low temperatures, the paraffin plate is solid and small in volume, and the spring contracts, causing the short column and sliding assembly to maintain their initial positions to reduce heat loss. When the oil temperature in the cylinder rises, the heat is transferred to the paraffin plate, causing it to melt and expand, pushing the positioning plate to compress the spring. The sliding U-shaped seat extends inside the sliding plate, pushing the rotating plate to rotate. Through the gear shaft, the rotating gear and transmission gear rotate, causing multiple heat dissipation plates to unfold to increase the heat dissipation area. After the oil temperature drops, the paraffin plate solidifies and contracts, the spring returns to its original position, and the assembly moves in the opposite direction. The heat dissipation structure closes and returns to its initial state, improving heat dissipation performance. The piston rod drives the buffer plunger to move towards the cylinder head. The buffer plunger enters the buffer chamber, and the hydraulic oil in the chamber can only be discharged through the adjustable outlet. The oil generates throttling resistance, which slows down the piston rod. The oil flow rate can be adjusted by adjusting the valve in the adjustable outlet. The smaller the outlet, the stronger the resistance and buffering effect, and the greater the buffering stability. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the sealed outer shell structure of a hydraulic cylinder with temperature regulation function.

[0014] Figure 2 This is a schematic diagram of the piston rod in a hydraulic cylinder with temperature regulation function.

[0015] Figure 3 This is a schematic diagram of the temperature control mechanism in a hydraulic cylinder with temperature regulation function.

[0016] Figure 4 This is a schematic diagram of the cylinder head in a hydraulic cylinder with temperature regulation function.

[0017] In the diagram: 1. Sealed outer shell; 2. Temperature control mechanism; 201. Hollow column; 202. Spring; 203. Short column; 204. Positioning assembly; 2041. Positioning plate; 2042. Paraffin plate; 205. Sliding assembly; 2051. Sliding plate; 2052. Sliding U-shaped seat; 206. Rotating assembly; 2061. Rotating plate; 2062. Gear shaft; 207. Transmission assembly; 2071. Rotating gear; 2072. Transmission gear; 2073. Heat sink; 3. Buffer mechanism; 301. Piston rod; 302. Guide sleeve; 303. Buffer plunger; 304. Adjusting assembly; 3041. Buffer chamber; 3042. Adjustable outlet; 4. Oil tank; 5. Cylinder; 6. Cylinder head; 7. Retaining ring. Detailed Implementation

[0018] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0019] It should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Example 1

[0020] Please see Figure 1-3 A hydraulic cylinder with temperature regulation function includes a sealed outer shell 1. Oil tanks 4 are fixedly connected to the upper and lower sides of the inner wall of the sealed outer shell 1. A fixing ring 7 is fixedly connected to the middle of the inner wall of the sealed outer shell 1. The fixing ring 7 is mainly used for positioning and installing a temperature control mechanism 2 to ensure the stability of the temperature control mechanism 2 during operation. A cylinder head 6 is fixedly connected to the top of the sealed outer shell 1, and a cylinder barrel 5 is fixedly connected to the bottom of the cylinder head 6. The temperature control mechanism 2 is provided on the inner wall of the fixing ring 7. The temperature control mechanism 2 is used to automatically regulate the internal temperature of the cylinder to avoid excessively high or low oil temperatures affecting working performance. A buffer mechanism 3 is provided on the inner wall of the cylinder head 6 for buffering. The temperature control mechanism 2 includes a hollow column 201, the rear side of which is fixed to the inner wall of the fixing ring 7. A spring 202 is slidably connected to the inner wall of the hollow column 201. The spring 202 has an elastic reset function, which is used to pull the short column 203 back to reset at low temperatures, so that the heat dissipation structure is closed. At the same time, it cooperates with the expansion force of the paraffin plate 2042 to achieve telescopic adjustment at high temperatures. The short column 203 is slidably connected to the inner wall of the hollow column 201. A positioning component 204 is provided on the rear side of the short column 203. The short column 203 is used to transmit the elastic force of the spring 202 and the expansion thrust of the paraffin plate 2042, so as to drive the positioning plate 2041 to move synchronously. The positioning component 204 is provided on the rear side of the short column 203. The positioning component 204 is used to install the paraffin plate 2042 and drive the sliding component 205 to move. It is a key component for converting temperature signals into mechanical motion. Specifically, the sealing shell 1 serves as the external protective component of the entire hydraulic cylinder, used to isolate external impurities and dust and protect internal components. Oil tanks 4 are fixedly connected to both the upper and lower sides of its inner wall. The oil tanks 4 store hydraulic oil, providing oil supply and replenishment for the hydraulic cylinder's operation. A cylinder cover 6 is fixedly connected to the top of the sealing shell 1, sealing the top opening of the cylinder barrel 5 and providing guidance and sealing support for the piston rod 301. The cylinder barrel 5 is fixedly connected to the bottom of the cylinder cover 6; the cylinder barrel 5 is the core cavity for hydraulic oil storage and pressure transmission, providing support for the piston rod 301. The piston rod 301 provides space for telescopic movement. The inner wall of the cylinder head 6 is provided with a buffer mechanism 3. The buffer mechanism 3 is used to buffer the impact force when the piston rod 301 telescopics, so as to avoid damage caused by rigid collision of components. The temperature control mechanism 2 includes a hollow column 201. The hollow column 201 serves as the basic mounting carrier of the temperature control mechanism 2 and provides a sliding guide channel for the spring 202 and the short column 203. Its inner wall cooperates with the spring 202 and the short column 203 to realize telescopic transmission. The rear side of the hollow column 201 is fixedly connected to the inner wall of the fixing ring 7 to ensure stable installation.

[0021] In one instance of this embodiment, please refer to Figure 3 and Figure 4 The buffer mechanism 3 includes a piston rod 301. The outer wall of the piston rod 301 is slidably connected to the inner wall of the cylinder head 6. A guide sleeve 302 is slidably connected to the lower side of the outer wall of the piston rod 301. The guide sleeve 302 is used to guide the piston rod 301 to prevent the piston rod 301 from deviating or shaking during movement, and at the same time enhance the sealing performance between the piston rod 301 and the cylinder head 6. A buffer plunger 303 is fixedly connected to the middle of the outer wall of the piston rod 301. An adjustment component 304 is provided on the inner wall of the cylinder head 6. The adjustment component 304 is used to adjust the buffer resistance to adapt to the buffer requirements under different working conditions. The adjustment component 304 includes a buffer chamber 3041. The inner wall of the cylinder head 6 has a buffer chamber 3041. An adjustable outlet 3042 is provided on the right side of the inner wall of the cylinder head 6. The adjustable outlet 3042 is used to control the discharge rate of hydraulic oil in the buffer chamber 3041. The throttling resistance is adjusted by changing the size of the outlet. Specifically, the buffer mechanism 3 includes a piston rod 301, which is the core component for transmitting hydraulic force. It is used to convert the pressure energy of hydraulic oil into mechanical linear motion to drive the external load. The outer wall of the piston rod 301 is slidably connected to the inner wall of the cylinder head 6 to ensure smooth telescopic movement. A buffer plunger 303 is fixedly connected to the middle of the outer wall of the piston rod 301. The buffer plunger 303 and the buffer cavity 3041 cooperate to form a buffer structure. Throttling resistance is generated by squeezing the hydraulic oil in the buffer cavity 3041. The adjusting component 304 includes a buffer cavity 3041, which is the housing of the buffer plunger 303. It is used to store part of the hydraulic oil and provide throttling space. The inner wall of the cylinder head 6 has a buffer cavity 3041.

[0022] In one instance of this embodiment, please refer to Figure 2 and Figure 3 The positioning component 204 includes a positioning plate 2041. The front side of the positioning plate 2041 is fixedly connected to the rear side of the short column 203. A paraffin plate 2042 is slidably connected to the rear side of the positioning plate 2041. The paraffin plate 2042 is the core component for temperature sensing. It utilizes the physical properties of thermal expansion and contraction of paraffin to convert oil temperature changes into mechanical expansion or contraction forces, providing a power source for the temperature control mechanism 2. Sliding components 205 are provided on both the upper and lower sides of the positioning plate 2041. The sliding component 205 includes a sliding plate 2051. The sliding plate 2051 is used to provide sliding guidance for the sliding U-shaped seat 2052 and limit the sliding direction. The bottom of the sliding plate 2051 is fixedly connected to the top of the positioning plate 2041. The sliding U-shaped seat 2052 is slidably connected to the inner wall of the sliding plate 2051. A rotating component 206 is provided on the top of the sliding U-shaped seat 2052. The rotating component 206 is used to convert linear motion into rotational motion, driving the transmission component 207 to move. Specifically, the positioning component 204 includes a positioning plate 2041, which serves as the mounting base for the paraffin plate 2042 and also connects the short column 203 and the sliding component 205 to achieve power transmission. The front side of the positioning plate 2041 is fixedly connected to the rear side of the short column 203 to ensure that the short column 203 can drive the positioning plate 2041 to move synchronously. Sliding components 205 are provided on both the upper and lower sides of the positioning plate 2041. The sliding components 205 are used to realize the connection between the positioning plate 2041 and the rotating component 205. The sliding connection between 06 ensures smooth power transmission and adjusts the position of the rotating component 206. The bottom of the sliding plate 2051 is fixedly connected to the top of the positioning plate 2041 to ensure synchronous movement with the positioning plate 2041. A sliding U-shaped seat 2052 is slidably connected to the inner wall of the sliding plate 2051. The sliding U-shaped seat 2052 is used to connect the sliding plate 2051 and the rotating plate 2061 and can slide inside the sliding plate 2051 to adjust the position in conjunction with the rotation angle of the rotating plate 2061.

[0023] In one instance of this embodiment, please refer to Figure 2 and Figure 3The rotating assembly 206 includes a rotating plate 2061, the bottom of which is rotatably connected to the top of the sliding U-shaped seat 2052. A gear shaft 2062 is fixedly connected to the inner wall of the rotating plate 2061. The gear shaft 2062 is used to transmit the rotational force of the rotating plate 2061, drive the rotating gear 2071 to rotate, and also serves to position the rotating gear 2071. A transmission assembly 207 is provided on the outer wall of the gear shaft 2062. The transmission assembly 207 includes a rotating gear 2071, the outer wall of which is meshed with the outer wall of the gear shaft 2062. A transmission gear 2072 is meshed with the outer wall of the rotating gear 2071, which is used to drive the heat sink 2073 to rotate and open or close. The heat sink 2073 is fixedly connected to the inner wall of the transmission gear 2072. Specifically, the rotating assembly 206 includes a rotating plate 2061, which serves as an intermediate component for power transmission, converting the linear thrust of the sliding assembly 205 into the rotational force of the gear shaft 2062. The bottom of the rotating plate 2061 is rotatably connected to the top of the sliding U-shaped seat 2052, ensuring that the rotating plate 2061 can rotate flexibly. A transmission assembly 207 is provided on the outer wall of the gear shaft 2062, which transmits power through gear meshing, driving the heat sink 2073 to move synchronously. 207 includes a rotating gear 2071, which receives the power from the gear shaft 2062 and transmits it to the transmission gear 2072 to realize the direction and transmission of power. The outer wall of the rotating gear 2071 meshes with the outer wall of the gear shaft 2062. A heat dissipation plate 2073 is fixedly connected to the inner wall of the transmission gear 2072. The heat dissipation plate 2073 is the core component for heat dissipation. By unfolding, it increases the contact area with air, accelerates the dissipation of heat inside the oil cylinder, and reduces heat loss when closed, thus maintaining a stable oil temperature.

[0024] In the implementation of this utility model, the paraffin plate 2042 is solid and small in volume at low temperature, and the spring 202 is in a contracted state, which drives the short column 203 and the sliding component 205 to maintain the initial position, reducing heat loss. When the oil temperature in the cylinder 5 rises, the heat is transferred to the paraffin plate 2042, and the paraffin plate 2042 expands in volume due to the heat, pushing the positioning plate 2041 to compress the spring 202, and causing the sliding U-shaped seat 2052 to slide and extend within the sliding plate 2051. Subsequently, it pushes the rotating plate 2061 to rotate, and drives the rotating gear 2071 and the transmission gear 2072 to rotate through the gear shaft 2062, causing multiple heat dissipation plates 2073 to unfold, increasing the heat dissipation area. After the oil temperature drops, the paraffin plate 2042 solidifies and contracts, the spring 202 returns to its original position, and drives each component to move in the opposite direction, closing the heat dissipation structure and restoring the initial state, resulting in better heat dissipation performance. The piston rod 301 drives the buffer plunger 303 to move towards the cylinder head 6. The buffer plunger 303 enters the buffer chamber 3041. The hydraulic oil in the buffer chamber 3041 can only be discharged through the adjustable outlet 3042. When the oil flows, it generates throttling resistance, which slows down the piston rod 301. The oil flow rate is adjusted by adjusting the valve in the adjustable outlet 3042. The smaller the outlet, the greater the resistance, the stronger the buffering effect, and the enhanced buffering stability.

[0025] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A hydraulic cylinder with temperature regulation function, comprising a sealed outer shell (1), characterized in that, Oil tanks (4) are fixedly connected to the upper and lower sides of the inner wall of the sealed housing (1). A fixing ring (7) is fixedly connected to the middle of the inner wall of the sealed housing (1). A cylinder head (6) is fixedly connected to the top of the sealed housing (1). A cylinder barrel (5) is fixedly connected to the bottom of the cylinder head (6). A temperature control mechanism (2) is provided on the inner wall of the fixing ring (7). A buffer mechanism (3) is provided on the inner wall of the cylinder head (6). The buffer mechanism (3) is used for buffering. The temperature control mechanism (2) includes a hollow column (201). The rear side of the hollow column (201) is fixedly connected to the inner wall of the fixing ring (7). A spring (202) is slidably connected to the inner wall of the hollow column (201). A short column (203) is slidably connected to the inner wall of the hollow column (201). A positioning component (204) is provided on the rear side of the short column (203).

2. A hydraulic cylinder with temperature regulation function according to claim 1, characterized in that, The buffer mechanism (3) includes a piston rod (301), the outer wall of the piston rod (301) is slidably connected to the inner wall of the cylinder head (6), a guide sleeve (302) is slidably connected to the lower side of the outer wall of the piston rod (301), a buffer plunger (303) is fixedly connected to the middle of the outer wall of the piston rod (301), and an adjustment component (304) is provided on the inner wall of the cylinder head (6).

3. A hydraulic cylinder with temperature regulation function according to claim 1, characterized in that, The positioning component (204) includes a positioning plate (2041), the front side of the positioning plate (2041) is fixedly connected to the rear side of the short column (203), a paraffin plate (2042) is slidably connected to the rear side of the positioning plate (2041), and sliding components (205) are provided on both the upper and lower sides of the positioning plate (2041).

4. A hydraulic cylinder with temperature regulation function according to claim 3, characterized in that, The sliding assembly (205) includes a sliding plate (2051), the bottom of which is fixedly connected to the top of the positioning plate (2041), and a sliding U-shaped seat (2052) is slidably connected to the inner wall of the sliding plate (2051). A rotating assembly (206) is provided on the top of the sliding U-shaped seat (2052).

5. A hydraulic cylinder with temperature regulation function according to claim 4, characterized in that, The rotating assembly (206) includes a rotating plate (2061), the bottom of which is rotatably connected to the top of the sliding U-shaped seat (2052), and a gear shaft (2062) is fixedly connected to the inner wall of the rotating plate (2061). A transmission assembly (207) is provided on the outer wall of the gear shaft (2062).

6. A hydraulic cylinder with temperature regulation function according to claim 5, characterized in that, The transmission assembly (207) includes a rotating gear (2071), the outer wall of which meshes with the outer wall of the gear shaft (2062), a transmission gear (2072) meshes with the outer wall of the rotating gear (2071), and a heat sink (2073) is fixedly connected to the inner wall of the transmission gear (2072).

7. A hydraulic cylinder with temperature regulation function according to claim 2, characterized in that, The adjustment assembly (304) includes a buffer chamber (3041), the inner wall of the cylinder head (6) is provided with a buffer chamber (3041), and the right side of the inner wall of the cylinder head (6) is provided with an adjustable outlet (3042).

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