Electric spindle heat dissipation device

Abstract

The utility model discloses a motorized spindle heat dissipation device, which relates to the technical field of motorized spindle heat dissipation devices and comprises a spindle body, a first lug is fixedly connected to the inner side of a first connecting ring, a second lug is fixedly connected to the inner side of a second connecting ring, and a first connecting pipe is fixedly connected to the outer side of the first connecting ring. And the outer side of the second connecting ring is fixedly connected with a second connecting pipe. Cooling liquid is introduced into the liquid guide ring through the first connecting pipe, the cooling liquid can flow in the liquid guide ring through the spiral liquid guide ring, it is ensured that the hot cooling liquid cannot stay in the electric spindle, and therefore overheating damage to the electric spindle is avoided, continuous cooling of the electric spindle is achieved, and the service life of the electric spindle is prolonged. The annular liquid guide pipe can uniformly cover the shell of the motorized spindle, it is ensured that heat can be effectively transmitted into cooling liquid from all parts of the motorized spindle, the heat generated by the motorized spindle can be rapidly taken away in a water circulation heat dissipation mode, and therefore the working temperature of the motorized spindle is reduced, and the stability and reliability of the motorized spindle are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric spindle heat dissipation devices, in particular to an electric spindle heat dissipation device. Background Art

[0002] The electric spindle heat dissipation device is a device or system specially designed to dissipate the heat generated by the electric spindle during high-speed operation. As the core component of CNC machine tools, the performance of the electric spindle directly affects the machining accuracy, efficiency and stability of the machine tool. When running at high speed, the electric spindle will generate a large amount of heat due to friction and electrical energy conversion. If the heat is not dissipated in time, the temperature of the electric spindle will rise, which will affect its performance and life.

[0003] The heat dissipation device of the electric spindle usually includes components such as cooling fans, heat sinks, heat pipes, and coolant circulation systems. These components use different heat dissipation principles and technologies to quickly remove the heat generated by the electric spindle and dissipate it into the surrounding environment, thereby keeping the electric spindle operating within an appropriate temperature range. Among them, the cooling fan is one of the most common heat dissipation methods. It blows hot air away from the electric spindle through forced convection to achieve heat dissipation. The heat sink improves the heat dissipation efficiency by increasing the heat dissipation area. The heat pipe uses the principle of heat conduction to transfer heat from the electric spindle to the heat sink, and then dissipates the heat through the fan or natural convection. The coolant circulation system removes the heat generated by the electric spindle through the circulating coolant and dissipates the heat into the air through the radiator.

[0004] However, the electric spindles in the prior art will produce uneven heat distribution during operation, and some heat dissipation devices may not be able to effectively cope with this unevenness, which may cause some parts of the electric spindle to overheat while other parts have lower temperatures, thereby affecting the overall performance and stability of the equipment. Utility Model Content

[0005] Based on this, the purpose of the present invention is to provide an electric spindle heat dissipation device to solve the technical problem that the electric spindle in the prior art will produce uneven heat distribution when working. Some heat dissipation devices may not be able to effectively cope with this unevenness, which may cause some parts of the electric spindle to overheat while other parts have a lower temperature, thereby affecting the overall performance and stability of the equipment.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a heat dissipation device for an electric spindle, comprising a spindle body, a bearing group symmetrically arranged on the outside of the spindle body, an outer shell arranged on the outside of the bearing group, a flange connected to one end of the outer shell, a sheath fixedly connected to the outside of the flange, a liquid guide ring fixedly connected to the inside of the outer shell, a first connecting ring and a second connecting ring respectively connected to the outer shell in a symmetrical structure, a first protrusion fixedly connected to the inside of the first connecting ring, a second protrusion fixedly connected to the inside of the second connecting ring, two ends of the liquid guide ring respectively fixedly connected to the first protrusion and the second protrusion, a first connecting pipe fixedly connected to the outside of the first connecting ring, and a second connecting pipe fixedly connected to the outside of the second connecting ring.

[0007] By adopting the above technical solution, when in use, the coolant is introduced into the liquid guide ring through the first connecting pipe. The coolant can flow in the liquid guide ring through the spiral liquid guide ring. By controlling the flow rate of the water inlet pipe, the cooling effect of the electric spindle can be adjusted. According to the workload and temperature of the electric spindle, the flow rate of the water inlet pipe can be adjusted to ensure the best cooling effect. The drain pipe is responsible for discharging the coolant that has heated up after passing through the internal cooling water path of the electric spindle. This is the last step in the cooling process and ensures that the hot coolant does not remain inside the electric spindle, thereby avoiding overheating and damage to the electric spindle. The drain pipe is connected to other parts of the cooling system to form a complete circulation loop. The discharge function of the drain pipe can ensure that the coolant continuously circulates in the cooling system, thereby achieving continuous cooling of the electric spindle. The annular liquid guide pipe can evenly cover the outer shell of the electric spindle, ensuring that heat is effectively transferred from all parts of the electric spindle to the coolant. The water circulation heat dissipation method can quickly remove the heat generated by the electric spindle, thereby reducing the operating temperature of the electric spindle and improving its stability and reliability.

[0008] The utility model is further configured such that the other end of the shell is connected to a rear locking nut, one side of the rear locking nut is connected to a rear end cover, the outer side of the rear end cover is connected to a driving pulley, and the main shaft body is located between the rear end cover and the driving pulley.

[0009] By adopting the above technical solution, the rear locking nut, the rear end cover and the driving pulley cooperate with each other, so that the entire electric spindle can be used normally and the electric spindle can be sealed and dustproof.

[0010] The present invention is further configured such that multiple groups of heat sinks are provided on the outer side of the shell, the first connecting tube and the second connecting tube both pass through the heat sinks, and through holes are opened in the multiple groups of heat sinks for use with the first connecting tube and the second connecting tube.

[0011] By adopting the above technical solution, when heat is generated inside the device, the heat sink can effectively transfer the heat from the inside of the device to the external environment, thereby reducing the temperature of the device. The through hole allows the first connecting tube and the second connecting tube to pass through the heat sink, ensuring that the heat transfer path is unobstructed and the effect of quickly installing the heat sink can be achieved. While passing through the heat sink, the first connecting tube and the second connecting tube also provide a certain support for the heat sink.

[0012] The present invention is further configured such that a first slot for cooperating with the first connecting ring and the second connecting ring is provided on the outer side of the shell, and a third slot for cooperating with multiple groups of heat sinks is provided on the outer side of the shell.

[0013] By adopting the above technical solution, the first card slot is conducive to fixing the first connecting ring and the second connecting ring on the outside of the shell for use in conjunction with the liquid guide ring. The third card slot is used in conjunction with multiple groups of heat sinks to firmly fix the heat sink on the outside of the shell, cooperating with the electric spindle to achieve the effect of cooling and heat dissipation.

[0014] The present invention is further configured such that a sensor is fixedly connected to the top of the housing, and a second card slot for cooperating with the sensor is provided on the top of the housing.

[0015] By adopting the above technical solution, when the temperature sensor detects that the temperature of the electric spindle is too high, the intelligent control system can automatically issue a warning signal and take necessary protective measures, such as reducing the speed, increasing the coolant flow, etc., to prevent the electric spindle from being damaged due to overheating. The second card slot is conducive to fixing the sensor in the second card slot for use.

[0016] The present invention is further configured such that a cavity for use with the liquid guide ring is provided in the shell, and the cavity is coated with a heat insulating material.

[0017] By adopting the above technical solution, the provided cavity is conducive to fixing the liquid guide ring in the outer shell. After the cavity is coated with thermal insulation material, the heat transfer through the outer shell can be effectively reduced, thereby improving the overall thermal insulation performance. The existence of the cavity provides a certain structural support for the outer shell. At the same time, the thermal insulation material also plays a role in reinforcing the outer shell when filling the cavity. With this structure, the outer shell can better resist deformation and damage when subjected to external force, thereby improving the overall structural stability.

[0018] The utility model is further configured such that a plurality of bolt holes are provided on the flange, and an outer side of the shell is coated with an anti-corrosion coating.

[0019] By adopting the above technical solution, the provided bolt holes are conducive to the connection and use of the electric spindle with other devices, and the anti-corrosion coating on the outside of the shell can effectively prevent the shell from being corroded, thereby extending the service life of the shell.

[0020] In summary, the present invention has the following beneficial effects:

[0021] 1. The utility model introduces the coolant into the liquid guide ring through the first connecting pipe, and the coolant is allowed to flow in the liquid guide ring through the spiral liquid guide ring. By controlling the flow rate of the water inlet pipe, the cooling effect of the electric spindle can be adjusted. According to the workload and temperature of the electric spindle, the flow rate of the water inlet pipe can be adjusted to ensure the best cooling effect. The drain pipe is responsible for discharging the coolant that has heated up after passing through the cooling water channel inside the electric spindle. This is the last step in the cooling process, ensuring that the hot coolant does not remain inside the electric spindle, thereby avoiding overheating damage to the electric spindle. The drain pipe is connected to other parts of the cooling system to form a complete circulation loop. The discharge function of the drain pipe can ensure that the coolant continuously circulates in the cooling system, thereby achieving continuous cooling of the electric spindle. The annular liquid guide pipe can evenly cover the outer shell of the electric spindle, ensuring that heat can be effectively transferred from all parts of the electric spindle to the coolant. The water circulation heat dissipation method can quickly take away the heat generated by the electric spindle, thereby reducing the operating temperature of the electric spindle and improving its stability and reliability.

[0022] 2. When the temperature sensor detects that the temperature of the electric spindle is too high, the intelligent control system of the utility model can automatically send out a warning signal and take necessary protective measures, such as reducing the rotation speed, increasing the coolant flow, etc., to prevent the electric spindle from being damaged due to overheating. The second card slot is provided to facilitate fixing the sensor in the second card slot for use. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0024] Figure 2 This is a schematic diagram of the split structure of the utility model;

[0025] Figure 3 This is a schematic diagram of the cross-sectional structure of the present invention from a first viewing angle;

[0026] Figure 4 This is a schematic diagram of the cross-sectional structure of the utility model from a second viewing angle;

[0027] Figure 5 This is a schematic diagram of the partial structural disassembly effect of the present invention.

[0028] In the figure: 1. sheath; 2. flange; 3. heat sink; 4. housing; 5. rear locking nut; 6. drive pulley; 7. first connecting ring; 8. first connecting tube; 9. second connecting ring; 10. bearing assembly; 11. first slot; 12. sensor; 13. spindle body; 14. first bump; 15. second connecting tube; 16. liquid guide ring; 17. second slot; 18. cavity; 19. rear end cover; 20. third slot; 21. second bump; 22. through hole. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0030] The following describes an embodiment of the present invention based on its overall structure.

[0031] An electric spindle heat dissipation device, such as Figure 1-5 As shown, it includes a main shaft body 13, a bearing group 10 is symmetrically arranged on the outside of the main shaft body 13, a shell 4 is arranged on the outside of the bearing group 10, one end of the shell 4 is connected to a flange 2, a sleeve 1 is fixedly connected to the outside of the flange 2, a liquid guide ring 16 is fixedly connected to the inside of the shell 4, a first connecting ring 7 and a second connecting ring 9 are respectively connected to the shell 4 in a symmetrical structure, a first protrusion 14 is fixedly connected to the inside of the first connecting ring 7, a second protrusion 21 is fixedly connected to the inside of the second connecting ring 9, two ends of the liquid guide ring 16 are respectively fixedly connected to the first protrusion 14 and the second protrusion 21, a first connecting pipe 8 is fixedly connected to the outside of the first connecting ring 7, and a second connecting pipe 15 is fixedly connected to the outside of the second connecting ring 9.

[0032] During use, the coolant is introduced into the liquid guide ring 16 through the first connecting pipe 8. The coolant can flow in the liquid guide ring 16 through the spiral liquid guide ring 16. By controlling the flow rate of the water inlet pipe, the cooling effect of the electric spindle can be adjusted. According to the workload and temperature of the electric spindle, the flow rate of the water inlet pipe can be adjusted to ensure the best cooling effect. The drain pipe is responsible for discharging the coolant that has heated up after passing through the cooling water path inside the electric spindle. This is the last step in the cooling process, ensuring that the hot coolant does not remain inside the electric spindle, thereby avoiding overheating damage to the electric spindle. The drain pipe is connected to other parts of the cooling system to form a complete circulation loop. The discharge function of the drain pipe can ensure that the coolant continues to circulate in the cooling system, thereby achieving continuous cooling of the electric spindle. The annular liquid guide pipe can evenly cover the outer shell 4 of the electric spindle, ensuring that heat can be effectively transferred from all parts of the electric spindle to the coolant. The water circulation heat dissipation method can quickly take away the heat generated by the electric spindle, thereby reducing the operating temperature of the electric spindle and improving its stability and reliability.

[0033] The further arranged rear locking nut 5 cooperates with the rear end cover 19 and the drive pulley 6, so that the entire electric spindle can be used normally, and also achieves the effect of sealing and dustproofing for the electric spindle. When heat is generated inside the equipment, the heat sink 3 can effectively transfer the heat from the inside of the equipment to the external environment, thereby reducing the temperature of the equipment. The through hole 22 allows the first connecting tube 8 and the second connecting tube 15 to pass through the heat sink 3, ensuring that the heat transfer path is unobstructed, and also achieving the effect of quickly installing the heat sink 3. While passing through the heat sink 3, the first connecting tube 8 and the second connecting tube 15 also provide a certain support for the heat sink 3. The set first slot 11 is conducive to fixing the first connecting ring 7 and the second connecting ring 9 on the outside of the shell 4 for use with the liquid guide ring 16. The third slot 20 is used in conjunction with multiple groups of heat sinks 3 to firmly fix the heat sink 3 on the outside of the shell 4, cooperating with the electric spindle to achieve the effect of cooling and heat dissipation.

[0034] In this embodiment, when the temperature sensor 12 detects that the temperature of the electric spindle is too high, the intelligent control system can automatically issue a warning signal and take necessary protective measures, such as reducing the rotation speed, increasing the coolant flow, etc., to prevent the electric spindle from being damaged due to overheating. The second card slot 17 is conducive to fixing the sensor 12 in the second card slot 17 for use, and the cavity 18 is conducive to fixing the liquid guide ring 16 in the shell 4. After the cavity 18 is coated with thermal insulation material, the heat transfer through the shell 4 can be effectively reduced, thereby improving the overall thermal insulation performance. The existence of the cavity 18 provides a certain structural support for the shell 4. At the same time, the thermal insulation material also plays a role in reinforcing the shell 4 when filling the cavity 18. With this structure, the shell 4 can better resist deformation and damage when subjected to external force, thereby improving the overall structural stability. The bolt hole is conducive to the connection and use of the electric spindle with other devices. The anti-corrosion coating on the outside of the shell 4 can effectively prevent the shell 4 from corrosion, thereby extending the service life of the shell 4.

[0035] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not limitations on the present invention. The specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and purpose of the present invention, but as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. An electric spindle heat dissipation device, comprising a spindle body (13), characterized in that: A bearing group (10) is symmetrically arranged on the outside of the main shaft body (13), and a shell (4) is arranged on the outside of the bearing group (10). One end of the shell (4) is connected to a flange (2), and a sleeve (1) is fixedly connected to the outside of the flange (2). A liquid guide ring (16) is fixedly connected to the inside of the shell (4). A first connecting ring (7) and a second connecting ring (9) are respectively connected to the shell (4) in a symmetrical structure. The inside of the first connecting ring (7) is fixedly connected to a first protrusion (14), and the inside of the second connecting ring (9) is fixedly connected to a second protrusion (21). Two ends of the liquid guide ring (16) are respectively fixedly connected to the first protrusion (14) and the second protrusion (21). The outside of the first connecting ring (7) is fixedly connected to a first connecting pipe (8), and the outside of the second connecting ring (9) is fixedly connected to a second connecting pipe (15).

2. The electric spindle heat dissipation device according to claim 1, characterized in that: The other end of the housing (4) is connected to a rear locking nut (5), one side of the rear locking nut (5) is connected to a rear end cover (19), the outer side of the rear end cover (19) is connected to a driving pulley (6), and the main shaft body (13) is located between the rear end cover (19) and the driving pulley (6).

3. The electric spindle heat dissipation device according to claim 1, characterized in that: Multiple groups of heat sinks (3) are provided on the outside of the housing (4); the first connecting tube (8) and the second connecting tube (15) both pass through the heat sinks (3); and through holes (22) for use with the first connecting tube (8) and the second connecting tube (15) are provided in the multiple groups of heat sinks (3).

4. The electric spindle heat dissipation device according to claim 3, characterized in that: The outer side of the housing (4) is provided with a first slot (11) for use with the first connecting ring (7) and the second connecting ring (9), and the outer side of the housing (4) is provided with a third slot (20) for use with multiple groups of heat sinks (3).

5. The electric spindle heat dissipation device according to claim 1, characterized in that: A sensor (12) is fixedly connected to the top of the housing (4), and a second card slot (17) for use with the sensor (12) is provided on the top of the housing (4).

6. The electric spindle heat dissipation device according to claim 1, characterized in that: A cavity (18) for use with the liquid guide ring (16) is provided in the shell (4), and the cavity (18) is coated with a heat-insulating material.

7. The electric spindle heat dissipation device according to claim 1, characterized in that: The flange (2) is provided with a plurality of bolt holes, and the outer side of the housing (4) is coated with anti-corrosion paint.

Images