Efficient heat dissipation device for DD motor

Abstract

The utility model discloses a high-efficiency heat dissipation device for a DD motor, which comprises an end cover and further comprises a main shaft cooling assembly, the main shaft cooling assembly comprises a rotating shaft, a coil is arranged on the surface of the rotating shaft, a lengthening shaft is arranged on one side of the rotating shaft, fan blades are sleeved on the surface of the lengthening shaft, a motor shell is sleeved on the outer side of the rotating shaft, and the motor shell is provided with a cooling fan. A stator is arranged in the motor shell, air holes are formed in the periphery of the motor shell, and an airflow cover covers the surfaces of the air holes. The main shaft cooling assembly enables the device to achieve a self-cooling effect by utilizing the characteristics of the self rotor structure in the use process, and through cooperation with the heat dissipation holes and the airflow cover at the peripheral part, the heat dissipation effect of the motor is greatly improved, and the influence on the performance of the motor caused by sleeving installation of the heat dissipation assembly is avoided. And through the arrangement of the heat dissipation bin assembly, a part capable of bearing heat is reserved for the device. The air bin part can temporarily collect heat from the rotor part, and the heat can be output from the air hole part of the air bin.

Description

Technical Field

[0001] The utility model relates to the technical field of DD motors, in particular to an efficient heat dissipation device for a DD motor. Background Art

[0002] A DD (Direct Drive) motor is a direct drive type motor, which is characterized by canceling the traditional reduction mechanism and directly connecting the output shaft of the motor with the load, so as to achieve high precision, high response speed and stable operation. DD motors are widely used in occasions that require precise control, such as numerical control machine tools, industrial robots, semiconductor manufacturing equipment and other fields, and are favored because of their high torque density, low inertia and excellent dynamic performance.

[0003] The Chinese invention patent with the application number CN114094751A discloses an efficient heat dissipation device for a DD motor. The patent includes a housing, a motor body and a rotating disk arranged on the motor body. A partition is fixedly installed on the inner wall of the housing. A plurality of U-shaped brackets are evenly arranged at the edge of the top of the partition. The inner walls of the plurality of U-shaped brackets are all clamped with heat dissipation fins, and the plurality of heat dissipation fins are evenly fixedly installed on the outer wall of the motor body. When the motor body works, it drives the rotating disk to rotate. The rotation of the rotating disk drives the blades to rotate. The rotation of the blades draws air in from the gap between the housing and the rotating disk and blows air into the housing. The air blown into the housing blows on the heat dissipation fins on the outer wall of the motor body, taking away a part of the heat on the heat dissipation fins. Finally, the air is discharged from the air outlet. By using the operation of the motor body itself, excellent heat dissipation effect can be achieved, and the structure is simpler and the cost is lower at the same time.

[0004] However, in the process of setting the heat dissipation device for the existing DD motor, the heat dissipation box is directly sleeved and installed on the surface of the motor, that is, the structural volume of the motor itself is increased. Although this way of sleeving and installing the heat dissipation device realizes an effective heat dissipation effect, it increases the structural burden of the motor itself, that is, the output efficiency of the motor is greatly reduced. Summary of the Utility Model

[0005] The purpose of the utility model is to solve the defects existing in the prior art, and to propose an efficient heat dissipation device for a DD motor.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] An efficient heat dissipation device for a DD motor, including an end cover, further including:

[0008] Spindle cooling component, the spindle cooling component includes a rotating shaft, a coil is installed on the surface of the rotating shaft, an extension shaft is arranged on one side of the rotating shaft, a fan blade is sleeved and installed on the surface of the extension shaft, a motor housing is sleeved outside the rotating shaft, a stator is arranged inside the motor housing, air holes are opened on the periphery of the motor housing, and an air flow cover is installed on the surface of the air holes.

[0009] Further technical solution, the coil is externally connected to a wire and a power supply.

[0010] Further technical solution, a first bearing is sleeved and installed on one side of the rotating shaft, a bearing hole is arranged on one side of the end cover, and the first bearing is inserted and installed inside the bearing hole.

[0011] Further technical solution, further includes:

[0012] Heat dissipation chamber component, the heat dissipation chamber component includes an air box docked and installed on one side of the motor housing, through holes are arranged on the periphery of the air box, a bearing seat is fixedly installed at the bottom of the air box, a second bearing is installed inside the bearing seat, and the extension shaft is fixedly installed inside the second bearing.

[0013] Further technical solution, the air holes and the air flow covers are arranged in an array on the periphery of the motor housing, and the air holes and the air flow covers are mutually communicated.

[0014] Further technical solution, a triangular frame is connected and installed between the bearing seat and the air box, and the triangular frame is a centrosymmetric structure.

[0015] Further technical solution, the end of the rotating shaft is connected and installed as an output end to the input end of a belt driving member.

[0016] Compared with the prior art, the present utility model provides an efficient heat dissipation device for a DD motor, having the following beneficial effects:

[0017] By setting the spindle cooling component, during the use of the device, the device can achieve the effect of self-cooling by utilizing the characteristics of its own rotor structure, and cooperate with the heat dissipation holes and air flow covers in the surrounding parts, greatly increasing the heat dissipation effect of the motor itself and avoiding the influence on the motor performance caused by sleeving and installing a heat dissipation component.

[0018] By setting the heat dissipation chamber component, a component that can receive heat is reserved for the device. The air chamber part will temporarily collect the heat from the rotor part, and under the action of the fan, the heat will be output from the air hole part of the air chamber, thereby achieving the effect of heat output. Description of the Drawings

[0019] Figure 1 It is a schematic structural diagram of an efficient heat dissipation device for a DD motor proposed by the present utility model;

[0020] Figure 2Structural schematic of the spindle cooling component of an efficient heat dissipation device for a DD motor proposed by the present utility model Figure 1 ;

[0021] Figure 3 Structural schematic of the spindle cooling component of an efficient heat dissipation device for a DD motor proposed by the present utility model Figure 2 ;

[0022] Figure 4 Structural schematic of the side view of an efficient heat dissipation device for a DD motor proposed by the present utility model.

[0023] In the figure: 1, end cover; 2, spindle cooling component; 3, heat dissipation chamber component; 4, rotating shaft; 5, coil; 6, extended shaft; 7, fan blade; 8, motor housing; 9, air hole; 10, air flow cover; 11, first bearing; 12, bearing hole; 13, stator; 14, air box; 15, bearing seat; 16, tripod; 17, second bearing; 18, through hole; 19, air chamber. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0025] Embodiment 1: Refer to Figure 1 - Figure 4 , an efficient heat dissipation device for a DD motor, including an end cover 1. The end cover 1 is a sealing component of this device, and further includes:

[0026] The spindle cooling component 2. The spindle cooling component 2 realizes the effect of self-cooling by utilizing the rotating shaft 4 structure of the motor itself. The spindle cooling component 2 includes a rotating shaft 4. A coil 5 is installed on the surface of the rotating shaft 4. The coil 5 will generate a periodic magnetic field when energized. This magnetic field interacts with the magnetic field on the stator 13 to realize the effect of rotating the rotating shaft 4. An extended shaft 6 is provided on one side of the rotating shaft 4. The extended shaft 6 is mainly used to extend the rotating shaft 4. The fan blade 7 installed on the extended shaft 6 will blow air to cool the rotor of the motor. A fan blade 7 is sleeved on the surface of the extended shaft 6. A motor housing 8 is sleeved outside the rotating shaft 4. The air holes 9 and the air flow cover 10 provided on the surface of the motor housing 8 cooperate with the fan to realize the effect of direct heat dissipation. A stator 13 is provided inside the motor housing 8. A stable magnetic field will be generated on the surface of the stator 13. Air holes 9 are opened around the motor housing 8, and an air flow cover 10 is installed on the surface of the air holes 9.

[0027] An efficient heat dissipation device for a DD motor. The coil 5 is externally connected to a wire and a power supply to realize the effect of conducting electricity and turning on, and further realize the generation of a periodic magnetic field.

[0028] An efficient heat dissipation device for a DD motor. On one side of the rotating shaft 4, a first bearing 11 is sleeved and installed. The first bearing 11 is used to be installed inside the bearing hole 12 to achieve stable installation. On one side of the end cover 1, there is a bearing hole 12, and the first bearing 11 is inserted and installed inside the bearing hole 12.

[0029] An efficient heat dissipation device for a DD motor further includes:

[0030] A heat dissipation chamber assembly 3. The heat dissipation chamber assembly 3 includes an air box 14 docked and installed on one side of the motor housing 8. The function of the air box 14 is to collect the heat generated inside the device and then discharge it from the through-hole 18 part. Through-holes 18 are provided around the air box 14. A bearing seat 15 is fixedly installed at the bottom of the air box 14. The function of the bearing seat 15 is to install the second bearing 17; a second bearing 17 is installed inside the bearing seat 15, and the second bearing 17 is the rotating installation part of the lengthened shaft 6. The lengthened shaft 6 is fixedly installed inside the second bearing 17.

[0031] For an efficient heat dissipation device for a DD motor, air holes 9 and air flow covers 10 are arranged in an array around the motor housing 8 to achieve the effect of uniform heat dissipation. The air holes 9 and the air flow covers 10 are in communication with each other.

[0032] For an efficient heat dissipation device for a DD motor, a tripod 16 is connected and installed between the bearing seat 15 and the air box 14. The tripod 16 is a positioning and fixing structure for the bearing seat 15. The tripod 16 is a centrosymmetric structure.

[0033] For an efficient heat dissipation device for a DD motor, the end of the rotating shaft 4 is connected and installed as an output end to the input end of the belt driving member, which is the power output end of this device.

[0034] Working principle:

[0035] In the actual creation process of the present utility model, in order to avoid the following defects existing in the prior art: "In the process of setting up the heat dissipation device in the prior art DD motor, the heat dissipation box is directly sleeved and installed on the surface of the motor, that is, the structural volume of the motor itself is increased. Although this way of sleeving and installing the heat dissipation device achieves an effective heat dissipation effect, it increases the structural burden of the motor itself, that is, the output efficiency of the motor is greatly reduced." The main shaft cooling component 2 and the heat dissipation chamber component 3 are specifically proposed;

[0036] The function of the main shaft cooling component 2 is to utilize the rotation effect of the main shaft to achieve the self-cooling effect of the motor. The coil 5 on the surface of the rotating shaft 4 will generate a periodic magnetic field when energized, and then cooperate with the magnetic field of the stator 13 to achieve the rotation effect of the rotating shaft 4. The fan blade 7 installed on one side of the rotating shaft 4 can generate an annular air flow inside the motor, and this air flow directly cools the inside of the device. The heated air flow will be output from the air holes 9 and the air flow cover 10, thereby achieving the effect of heat output.

[0037] To further achieve the cooling effect, we set up a heat dissipation chamber component 3; the role of the heat dissipation chamber component 3 is to dock and install an air box 14 on one side of the motor housing 8. The air box 14 can collect the heat from the motor and discharge the heat from the through hole 18 under the action of the fan blade 7. The heat inside the heat dissipation chamber will not stay, but only increase the heat dissipation effect.

[0038] With the main shaft cooling component 2 provided in the present utility model, during the use of the device, the self-cooling effect can be achieved by utilizing the characteristics of its own rotor structure. Cooperating with the heat dissipation holes and the air flow cover 10 in the surrounding parts, the heat dissipation effect of the motor itself is greatly increased, and the influence on the motor performance caused by socket-installing the heat dissipation component is avoided. By setting up the heat dissipation chamber component 3, a component that can receive heat is reserved in the device. The heat from the rotor part will be temporarily collected at the air storage chamber 19, and under the action of the fan, the heat will be output from the through hole 18 of the air storage chamber 19, thereby achieving the effect of heat output.

[0039] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "including", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. The above is only the preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, makes equivalent substitutions or changes, and should be covered within the protection scope of the present utility model.

Claims

1. An efficient heat dissipation device for a DD motor, comprising an end cover (1), characterized in that: Also includes: A spindle cooling component (2), the spindle cooling component (2) comprising a rotating shaft (4), a coil (5) being mounted on the surface of the rotating shaft (4), an extension shaft (6) being arranged on one side of the rotating shaft (4), a fan blade (7) being sleeved and mounted on the surface of the extension shaft (6), a motor housing (8) being sleeved and mounted on the outer side of the rotating shaft (4), a stator (13) being arranged inside the motor housing (8), air holes (9) being opened around the periphery of the motor housing (8), and an air flow cover (10) being mounted and covered on the surface of the air hole (9).

2. The high-efficiency heat dissipation device for DD motor according to claim 1, characterized in that: The coil (5) is externally connected to a wire and a power source.

3. The high-efficiency heat dissipation device for DD motor according to claim 1, characterized in that: A first bearing (11) is sleeved and mounted on one side of the rotating shaft (4), a bearing hole (12) is provided on one side of the end cover (1), and the first bearing (11) is plugged and mounted inside the bearing hole (12).

4. The high-efficiency heat dissipation device for DD motor according to claim 1, characterized in that: Also includes: A heat dissipation chamber assembly (3), the heat dissipation chamber assembly (3) comprising an air box (14) butt-jointedly mounted on one side of a motor housing (8), a through hole (18) being arranged around the periphery of the air box (14), a bearing seat (15) being fixedly mounted on the bottom of the air box (14), a second bearing (17) being mounted inside the bearing seat (15), and the extension shaft (6) being fixedly mounted inside the second bearing (17).

5. The high-efficiency heat dissipation device for DD motor according to claim 1, characterized in that: The air holes (9) and the air flow cover (10) are arrayed on the periphery of the motor housing (8), and the air holes (9) and the air flow cover (10) are in communication with each other.

6. The high-efficiency heat dissipation device for DD motor according to claim 4, characterized in that: A tripod (16) is connected and installed between the bearing seat (15) and the air box (14), and the tripod (16) is a centrally symmetrical structure.

7. The high-efficiency heat dissipation device for DD motor according to claim 1, characterized in that: The end of the rotating shaft (4) is connected to the input end of the belt drive as an output end.

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