Hydrostatic rotary table oil cooling device

Abstract

The utility model discloses a kind of static pressure rotary table oil cooling device, belong to hydraulic oil cooling equipment technical field. Mainly including base, the upper end surface of base is equipped with water tank, it is characterized by further comprising: heat dissipation mechanism, it is installed in the inside of water tank, including two heat exchange components, two the heat exchange components are symmetrically installed in the inside of water tank, heat exchange component includes the heat exchange pipe of zigzag, the outer end of heat exchange pipe is stacked with multiple fins, the liquid inlet end and liquid outlet end of the heat exchange pipe are connected with oil inlet line and oil return line respectively;Upper cover, it is installed on the water tank;Stirring mechanism, it is installed on the upper cover, the stirring mechanism is used to stir water tank internal coolant. The present application improves the heat exchange efficiency of oil and coolant, and the coolant in water tank flows continuously by stirring, prevents temperature stratification, ensures heat exchange uniformity, can effectively control static pressure rotary table oil temperature, ensures equipment stable operation.

Description

Technical Field

[0001] This utility model relates to the technical field of hydraulic oil cooling equipment, specifically a hydrostatic turntable oil cooling device. Background Technology

[0002] As a crucial component of high-precision machine tools, the hydrostatic rotary table's operational stability and accuracy retention directly impact machining quality. During prolonged high-speed operation, the internal oil of the hydrostatic rotary table experiences temperature increases due to friction and environmental heat, leading to changes in oil viscosity and a decrease in load-bearing capacity. This, in turn, causes variations in the rotary table's float, positioning accuracy drift, and even accelerated component wear. To maintain the oil's operating temperature within a reasonable range, an external cooling system is typically required.

[0003] Existing oil cooling devices mostly employ plate heat exchangers or shell-and-tube heat exchangers, using coolant to cool hot oil. However, these devices primarily rely on heat exchange tubes contacting the coolant, resulting in a relatively small contact area and insufficient heat exchange efficiency. Especially under conditions of high oil flow and rapid temperature rise, traditional cooling devices struggle to quickly and evenly reduce oil temperature. Furthermore, dead zones in the coolant flow can lead to localized temperature increases, affecting the overall cooling effect. Insufficient heat exchange between the coolant and the heat exchange surface further reduces cooling efficiency. Therefore, it is necessary to provide a hydrostatic rotary table oil cooling device to address these issues.

[0004] It should be noted that the information disclosed in this background section is only for understanding the background technology of this application concept, and therefore may include information that does not constitute prior art. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide a hydrostatic turntable oil cooling device. By setting heat exchange components and stirring mechanism, the heat exchange efficiency between oil and coolant is improved. Stirring keeps the coolant in the water tank flowing continuously, preventing temperature stratification and ensuring heat exchange uniformity. It can effectively control the oil temperature of the hydrostatic turntable and ensure stable operation of the equipment.

[0006] To solve the above-mentioned technical problems, the technical solution of this utility model is: a hydrostatic turntable oil cooling device, including a base, wherein a water tank is installed on the upper surface of the base, characterized in that it further includes:

[0007] The heat dissipation mechanism is installed inside the water tank and includes two heat exchange components. The two heat exchange components are symmetrically installed inside the water tank. Each heat exchange component includes a tortuous heat exchange tube. Multiple fins are stacked and sleeved on the outer end of the heat exchange tube. The liquid inlet end and liquid outlet end of the heat exchange tube are respectively connected to an oil inlet pipe and an oil return pipe.

[0008] The top cover is installed on the water tank;

[0009] A stirring mechanism is installed on the upper cover and is used to stir the coolant inside the water tank.

[0010] Furthermore, both the oil inlet pipe and the oil return pipe are tee pipes. The two ends of the oil inlet pipe are fixedly connected to the liquid inlet ends of the two heat exchange tubes, and the two ends of the oil return pipe are fixedly connected to the liquid outlet ends of the two heat exchange tubes. Valves are installed at the outer ends of both the oil inlet pipe and the oil return pipe.

[0011] Furthermore, both the return oil line and the inlet oil line are made of copper pipes, and the fins are made of aluminum alloy.

[0012] Furthermore, the stirring mechanism includes a motor, the output end of which is fixedly connected to a stirring shaft extending into the water tank, and the outer end of the stirring shaft is fitted with stirring blades.

[0013] Furthermore, a circulation mechanism is installed on one side of the upper end face of the base. The circulation mechanism includes a circulation pump. An inlet pipe is fixedly connected between the inlet end of the circulation pump and the water tank. An outlet pipe is fixedly connected between the outlet end of the circulation pump and the upper side of the water tank. A control valve is installed on the outlet pipe.

[0014] Furthermore, a liquid filling pipe is installed on the upper outer side of the water tank, which is used to connect to an external liquid supply device.

[0015] Furthermore, an opening is provided on one side of the upper end face of the cover, and a sealing cap is rotatably installed on the outer end of the opening.

[0016] By adopting the above technical solution, this utility model has the following beneficial effects: By symmetrically arranging two heat exchange components inside the water tank, each heat exchange component is composed of tortuous heat exchange tubes and stacked fins, increasing the heat exchange area and improving the heat exchange efficiency between the oil and the coolant. It is also equipped with a stirring mechanism, which keeps the coolant flowing in the water tank through stirring, preventing temperature stratification and ensuring heat exchange uniformity. The device has a compact structure, high heat exchange efficiency, and convenient maintenance. It can effectively control the oil temperature of the hydrostatic turntable and ensure stable operation of the equipment. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0018] Figure 1 This is a schematic diagram of an oil cooling device for a hydrostatic turntable according to this application. Figure 1 ;

[0019] Figure 2This is a schematic diagram of an oil cooling device for a hydrostatic turntable according to this application. Figure 2 ;

[0020] Figure 3 This is a schematic diagram of the internal structure of the water tank of a hydrostatic turntable oil cooling device according to this application;

[0021] Figure 4 This is a schematic diagram of the heat exchange component of a hydrostatic rotary table oil cooling device according to this application;

[0022] Figure 5 This is a schematic diagram of the stirring mechanism of a hydrostatic turntable oil cooling device according to this application;

[0023] The following are the labeling elements in the figure:

[0024] 1. Base; 2. Water tank; 3. Heat dissipation mechanism; 31. Heat exchange component; 311. Heat exchange tube; 312. Fins; 32. Oil inlet pipe; 33. Oil return pipe; 4. Top cover; 5. Sealing cover; 6. Stirring mechanism; 61. Motor; 62. Stirring shaft; 63. Stirring blades; 7. Circulation mechanism; 71. Circulation pump; 72. Water inlet pipe; 73. Water outlet pipe; 74. Control valve; 8. Liquid filling pipe. Detailed Implementation

[0025] This utility model provides a method that, with the aid of those skilled in the art, can be implemented by appropriately modifying process parameters. It is particularly important to note that all similar substitutions and modifications are obvious to those skilled in the art and fall within the scope of protection of this utility model. The method and application of this utility model have been described through preferred embodiments. Those skilled in the art can clearly modify or appropriately alter and combine the method and application described herein without departing from the content, spirit, and scope of this utility model to implement and apply the technology of this utility model.

[0026] To make the contents of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0027] like Figures 1-5 As shown, this application provides a hydrostatic turntable oil cooling device, including a base 1. The base 1 has an overall plate-like structure with sufficient rigidity and stability to support the entire cooling device. A water tank 2 is installed on the upper surface of the base 1. The water tank 2 is made of a corrosion-resistant material, such as stainless steel, and contains coolant.

[0028] The water tank 2 is equipped with a heat dissipation mechanism 3, which includes two heat exchange components 31. The two heat exchange components 31 are symmetrically installed on both sides of the inside of the water tank 2 to balance the heat dissipation load. Each heat exchange component 31 includes a tortuous heat exchange tube 311, and multiple fins 312 are stacked and sleeved on the outer wall of the heat exchange tube 311. The fins 312 increase the outer surface area of ​​the heat exchange tube 311, thereby enhancing the heat exchange with the coolant.

[0029] The inlet and outlet ends of the heat exchange tube 311 are connected to an oil inlet pipe 32 and an oil return pipe 33, respectively. During operation, high-temperature oil flows into the heat exchange tube 311 from the oil inlet pipe 32 and exchanges heat with the coolant as it flows through a tortuous path. The cooled oil returns to the hydrostatic turntable system from the oil return pipe 33.

[0030] A cover 4 is installed on the upper end of the water tank 2. The cover 4 is fixedly connected to the water tank 2 by bolts or clips, serving a sealing and protective function. A stirring mechanism 6 is installed on the cover 4. The stirring mechanism 6 is used to stir the coolant inside the water tank 2 to prevent the coolant from stratifying due to stillness and to ensure uniform heat exchange.

[0031] Both the oil inlet pipe 32 and the oil return pipe 33 are tee pipe structures. The two ends of the oil inlet pipe 32 are fixedly connected to the liquid inlet ends of the two heat exchange tubes 311, respectively, and the two ends of the oil return pipe 33 are fixedly connected to the liquid outlet ends of the two heat exchange tubes 311, respectively. This parallel design allows oil to flow into both heat exchange components 31 simultaneously, improving cooling efficiency. Valves are installed at the outer ends of both the oil inlet pipe 32 and the oil return pipe 33 to control the oil flow and regulate the flow rate.

[0032] Furthermore, both the return oil line 33 and the inlet oil line 32 are made of copper tubing, which has good thermal conductivity and corrosion resistance, facilitating heat transfer. The fins 312 are made of aluminum alloy, which is lightweight and has good thermal conductivity, further improving heat dissipation efficiency.

[0033] Please see Figure 5 As shown, the stirring mechanism 6 includes a motor 61, which is fixedly mounted on the upper surface of the cover 4. Its output shaft extends downward into the water tank 2, and a stirring shaft 62 is fixedly connected to the end of the output shaft. Multiple stirring blades 63 are installed on the outer end of the stirring shaft 62. The motor 61 drives the stirring shaft 62 to rotate, which in turn drives the stirring blades 63 to stir the coolant, making the temperature distribution in the water tank uniform and preventing local overheating.

[0034] A circulation mechanism 7 is installed on one side of the upper end face of the base 1. The circulation mechanism 7 includes a circulation pump 71. An inlet pipe 72 is fixedly connected between the liquid inlet end of the circulation pump 71 and the lower side of the water tank 2. An outlet pipe 73 is fixedly connected between the liquid outlet end of the circulation pump 71 and the upper side of the water tank 2.

[0035] A control valve 74 is installed on the outlet pipe 73 to regulate the coolant flow rate. When the circulation pump 71 is working, it draws the coolant with a higher temperature from the bottom of the water tank 2 and pumps it back to the top of the water tank through the outlet pipe 73 to form a forced circulation, which enhances the heat exchange effect between the coolant and the heat exchange components.

[0036] A liquid filling pipe 8 is installed on the upper outer side of the water tank 2. The liquid filling pipe 8 is used to connect to an external liquid supply device to facilitate the replenishment or replacement of coolant in the water tank.

[0037] An opening is provided on one side of the upper end face of the cover 4. The opening is used to install the stirring mechanism 6 or for maintenance and inspection. A sealing cover 5 is installed on the outer end of the opening by means of a hinge. The sealing cover 5 can be opened to facilitate maintenance of the internal components.

[0038] Working principle:

[0039] In the initial state, the water tank 2 is filled with an appropriate amount of coolant, the stirring mechanism 6 and the circulation mechanism 7 are in standby state, and the valves on the oil inlet pipe 32 and the oil return pipe 33 are in the closed state.

[0040] During operation, the valves on the oil inlet pipe 32 and the oil return pipe 33 are opened. The high-temperature oil in the hydrostatic turntable is evenly distributed to the heat exchange tubes 311 of the two symmetrically arranged heat exchange components 31 under the system pressure. At the same time, the motor 61 of the stirring mechanism 6 is started to drive the stirring blades 63 to rotate slowly.

[0041] As the high-temperature oil flows within the tortuous heat exchange tube 311, its heat is conducted through the copper tube wall to the tightly fitted aluminum alloy fins 312. The continuous rotation of the stirring blades 63 creates turbulence in the coolant within the water tank 2, constantly flushing the surfaces of the heat exchange tubes 311 and fins 312, carrying away heat and achieving efficient and uniform heat exchange. This effectively prevents the coolant from overheating in certain areas. The cooled oil then flows into the return oil line 33 and returns to the hydrostatic turntable system.

[0042] If the heat dissipation load is large, the circulation mechanism 7 can be activated. The circulation pump 71 draws relatively high-temperature coolant from the bottom of the water tank 2 through the inlet pipe 72, and pumps it back to the upper part of the water tank 2 or to external auxiliary cooling equipment through the outlet pipe 73. The circulation process further improves the utilization efficiency of the coolant and the overall heat dissipation capacity. The control valve 74 is used to adjust the circulation flow rate.

[0043] During operation, coolant can be added through the filling pipe 8. During regular maintenance, the sealing cover 5 can be opened to inspect or maintain internal components such as the stirring mechanism 6 through the opening of the upper cover 4.

[0044] It should be noted that the tortuous design of the heat exchange tube 311 extends the oil residence time, and the fins 312 significantly increase the heat dissipation area.

[0045] The specific embodiments described above further illustrate the technical problems, technical solutions, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. 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 hydrostatic turntable oil cooling device, comprising a base (1), wherein a water tank (2) is mounted on the upper surface of the base (1), characterized in that, Also includes: The heat dissipation mechanism (3) is installed inside the water tank (2) and includes two heat exchange components (31). The two heat exchange components (31) are symmetrically installed inside the water tank (2). The heat exchange components (31) include a tortuous heat exchange tube (311). Multiple fins (312) are stacked and sleeved on the outer end of the heat exchange tube (311). The inlet end and outlet end of the heat exchange tube (311) are respectively connected to an oil inlet pipe (32) and an oil return pipe (33). The top cover (4) is installed on the water tank (2); A stirring mechanism (6) is installed on the upper cover (4) and is used to stir the coolant inside the water tank (2).

2. The hydrostatic rotary table oil cooling device according to claim 1, characterized in that: Both the oil inlet pipe (32) and the oil return pipe (33) are tee pipes. The two ends of the oil inlet pipe (32) are fixedly connected to the liquid inlet end of the two heat exchange tubes (311), and the two ends of the oil return pipe (33) are fixedly connected to the liquid outlet end of the two heat exchange tubes (311). Valves are installed at the outer ends of both the oil inlet pipe (32) and the oil return pipe (33).

3. The hydrostatic rotary table oil cooling device according to claim 2, characterized in that: The return oil line (33) and the inlet oil line (32) are both made of copper pipes, and the fins (312) are made of aluminum alloy.

4. The hydrostatic rotary table oil cooling device according to claim 1, characterized in that: The stirring mechanism (6) includes a motor (61), the output end of which is fixedly connected to a stirring shaft (62) that extends into the water tank (2), and the outer end of the stirring shaft (62) is equipped with stirring blades (63).

5. The hydrostatic rotary table oil cooling device according to claim 1, characterized in that: A circulation mechanism (7) is installed on one side of the upper end face of the base (1). The circulation mechanism (7) includes a circulation pump (71). The inlet end of the circulation pump (71) is fixedly connected to the water tank (2) by an inlet pipe (72). The outlet end of the circulation pump (71) is fixedly connected to the upper side of the water tank (2) by an outlet pipe (73). A control valve (74) is installed on the outlet pipe (73).

6. The hydrostatic turntable oil cooling device according to claim 1, characterized in that: A liquid filling pipe (8) is installed on the upper side of the outer end of the water tank (2), and the liquid filling pipe (8) is used to connect to an external liquid supply device.

7. The hydrostatic rotary table oil cooling device according to claim 1, characterized in that: The upper end face of the cover (4) has an opening on one side, and a sealing cover (5) is rotatably installed on the outer end of the opening.

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