A heat insulation and dissipation device

Abstract

A heat insulation and heat dissipation device is disclosed, primarily addressing the technical problem of motors being unable to drive loads in high-temperature operating environments. The key technical features are: the device includes a housing and a rotating shaft housed within the housing, with both ends extending beyond the housing; the housing comprises a main body, a first end cap at one end, a second end cap at the other end, and a third end cap within the main body; a first through hole is provided on the first end cap, through which one end of the rotating shaft passes to the outside of the first end cap; multiple grooves are provided within the first through hole; multiple heat dissipation holes are radially arranged on the rotating shaft; and a suction hole is radially arranged on the rotating shaft; the heat dissipation holes and the suction hole are connected by a shaft through hole. This device is primarily used to assist the operation of drive mechanisms such as motors.

Description

Technical Field

[0001] This utility model relates to a heat insulation and heat dissipation device, and more particularly to a heat insulation and heat dissipation device for a drive mechanism. Background Technology

[0002] During the operation of existing motors, the motors heat up due to losses such as iron loss and magnetic loss caused by various factors and environmental influences. When the motor is in a high temperature for a long time, it can lead to dangerous situations such as motor shutdown, fire, and short circuit. It can also shorten the service life of the motor and cause problems such as softening and deformation of internal circuits. Therefore, motors are designed with cooling methods such as air cooling, water cooling, and oil cooling. However, these methods mainly cool the heat generated by the motor itself.

[0003] Currently, in certain special environments, such as driving high-temperature furnace stirring, high-temperature fan rotation, and high-temperature oil pump operation, motors are subjected to high temperatures transmitted from the working environment, causing the motor to heat up rapidly beyond its own cooling capacity. This can lead to dangerous situations such as motor shutdown, fire, and short circuit, causing safety accidents and economic losses to the user or enterprise. Summary of the Invention

[0004] The purpose of this invention is to provide a heat insulation and heat dissipation device and its matching motor system for blocking and isolating heat sources in high-temperature working environments.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a heat insulation and heat dissipation device, the device including a shell and a rotating shaft disposed inside the shell, the two ends of the rotating shaft extending out of the shell, characterized in that: the shell includes a shell body, a first end cover disposed at one end of the shell body, a second end cover disposed at the other end of the shell body and a third end cover disposed inside the shell body, the third end cover dividing the space inside the shell body into a first space near the first end cover and a second space near the second end cover, controlling the heat in the vicinity of the first space region of the shell body; The first end cap of this utility model is provided with a first through hole slightly larger than the rotating shaft. One end of the rotating shaft passes through the first through hole to the outside of the first end cap, and this end is mainly connected to the load. The first through hole of this utility model is provided with multiple grooves arranged along the axial direction, which can block the heat transmission at the load end and extend the heat transfer path, so as to help the internal and external negative pressures not affect each other. The second end cap of this utility model is provided with a second through hole slightly larger than the rotating shaft. The other end of the rotating shaft passes through the second through hole to the outside of the second end cap. This end is mainly connected to the drive mechanism. The second through hole of this utility model is provided with a second bearing chamber and a second bearing that cooperates with the rotating shaft in the second bearing chamber, so as to assist the rotating shaft to rotate on the second end cover. The third end cap of this utility model is provided with a third through hole slightly larger than the rotating shaft. A third bearing chamber and a third bearing that cooperates with the rotating shaft are provided in the third through hole. The rotating shaft is connected to the third through hole through the third bearing to assist the rotating shaft in rotating on the third end cap. The rotating shaft of this invention has multiple heat dissipation holes arranged radially on the portion of the shaft located in the first space. The air in contact with the inside of the rotating shaft is thrown out into the first space by the rotational inertia of the rotating shaft to achieve cooling and heat dissipation of the rotating shaft. The rotating shaft of this invention has a suction hole arranged radially on the part of the shaft located in the second space, so as to draw the cold air of the second space into the rotating shaft and make it contact the rotating shaft. The heat dissipation hole and the air intake hole of this utility model are connected by a shaft through hole, so that the cold air in the second space can enter the first space through the rotating shaft. The shell body of this utility model includes a first shell body and a second shell body. The first shell body includes a first inner circumferential surface, a second inner circumferential surface with an inner diameter different from that of the first inner circumferential surface, and an inner circumferential oblique surface between the first inner circumferential surface and the second inner circumferential surface. Preferably, the multiple heat dissipation holes of the rotating shaft of this utility model correspond to the inner peripheral inclined surface of the first shell body; Preferably, the multiple heat dissipation holes of the rotating shaft of this utility model correspond to the inner circumferential inclined surface and the second inner circumferential surface of the first shell body; the second shell body of this utility model is provided with an air inlet and multiple exhaust ports. The third end cap of this utility model has multiple exhaust holes on the end near the second inner circumferential surface. One of the exhaust holes has an air inlet channel that connects to the air inlet on the second shell body to deliver cold air into the first space.

[0006] The rotating shaft of this utility model includes multiple outer peripheral surfaces, which are contained in the outer peripheral surface of the rotating shaft and have different outer diameters. The multiple outer peripheral surfaces correspond to the housing to ensure the strength of the rotating shaft.

[0007] The second shell body of this utility model includes a water channel disposed on the outer peripheral surface of the second shell body and a water channel shell covering the water channel. The water channel is disposed around the outer peripheral surface of the second shell body, and the water channel shell is fitted onto the portion of the outer peripheral surface of the second shell body with the water channel.

[0008] The first end cap of this utility model is provided with a heat insulation groove on the end face near the shell body. The heat insulation groove is provided along the outer periphery of the first end cap towards the first through hole of the first end cap. The heat insulation material is provided in the heat insulation groove and is connected and fixed to the shell body to help the first space isolate the heat transmitted from the first end cap.

[0009] The second end cover of this utility model is also provided with a second bearing cover. The second bearing cover is provided with a second bearing through hole that is slightly larger than the rotating shaft. The second bearing cover covers the second bearing chamber and is connected to the second end cover to fix the bearing and prevent the bearing from being dislodged when the rotating shaft rotates.

[0010] The third end cover of this utility model is also provided with a third bearing cover, which is provided with a third bearing through hole slightly larger than the rotating shaft. The third bearing cover covers the third bearing chamber and is connected to the third end cover.

[0011] The first inner circumferential surface of the first shell body of this utility model is arranged in a ring on the first shell body. The first inner circumferential surface is close to the pivot and slightly larger than the pivot. The first inner circumferential surface is also provided with a shell groove to further block heat transmission.

[0012] The third end cover of this utility model has an oil inlet channel and an oil outlet channel, which are respectively connected to the third bearing chamber, and the bearing is lubricated and cooled by oil cooling.

[0013] The first end cap and the second end cap of this utility model are provided with protrusions on their end faces, and the shell body is provided with recesses that cooperate with the protrusions. The protrusions and the recesses are connected and positioned by a snap-fit, and then the first end cap, the second end cap and the shell body are fixed by bolt connection.

[0014] The shell body of this utility model is provided with a shell recess, the outer end face of the third end cover is connected and fixed to the shell recess, and the shell recess is provided on the inner end face of the shell body near the first end cover. Preferably, the shell recess is disposed on the inner end face of the shell body in the waterway region; Preferably, the recessed platform is disposed on the inner end face of the shell body near the waterway.

[0015] The cooling principle of this utility model is as follows: First, the motor drives the rotating shaft of the device to rotate, and the air inside the shaft is thrown out through the heat dissipation holes during the rotation, thus cooling the shaft. Second, cold air is supplied through the air inlet, and the cold air enters the first space of the device through the air inlet pipe to cool the rotating shaft and the first end cover, and then enters the second space through the exhaust hole and is discharged along the exhaust port, carrying away the heat. Third, a groove is set on the end cover to block external heat from entering the first space of the device and to prevent cold air in the first space from entering the working area through the gap of the rotating shaft and causing accidents. Fourth, water channels are set to cool the outside of the device. The overall idea of ​​this utility model is to block heat transfer to the front end of the device to achieve normal operation at high temperatures. The motor system of this utility model includes the above-mentioned heat insulation and heat dissipation device, motor and cooling system. The motor and the rotating shaft of the heat insulation and heat dissipation device are fixedly connected by a coupling. The cooling system is connected to the heat insulation and heat dissipation device and the motor respectively, and cools the heat insulation and heat dissipation device and the motor.

[0016] The motor system of this utility model also includes a support platform, and the heat insulation and heat dissipation device, motor and cooling system are respectively installed and fixed on the support platform.

[0017] The beneficial effects of this utility model are: This utility model ensures that the motor can work normally in high-temperature environments above 200 degrees Celsius. Its designed structure weakens the heat source in layers and adopts multiple cooling and temperature control methods. It effectively blocks the heat source from the motor shaft or casing to the inside of the motor, preventing the motor from continuously heating up; at the same time, it can also connect the motor cooling system in series to effectively save energy consumption. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the third end cap of this utility model; Figure 3 This is a schematic diagram of the air-cooled system of this utility model; Figure 4 This is a schematic diagram of another shell structure of this utility model; Figure 5 This is a schematic diagram of the motor system structure of this utility model; Figure 6 This is a schematic diagram of another application of the motor system of this utility model; Figure 7 This is a three-dimensional schematic diagram of the motor system of this utility model.

[0019] In the diagram: 2-Shaft, 10-Shell body, 11-First end cap, 12-Second end cap, 13-Third end cap, 111-Heat insulation groove, 112-Heat insulation cotton, 191-First space, 192-Second space, 110-First through hole, 1101-Groove, 120-Second through hole, 121-Second bearing chamber, 122-Second bearing, 123-Second bearing cover, 130-Third through hole, 131-Third bearing chamber, 132-Third bearing, 133-Third bearing cover, 21-Heat dissipation hole, 23-Intake hole, 22-Shaft through hole, 103-Air inlet, 104-Exhaust port 134-Exhaust port, 1341-Intake pipe, 105-Water channel, 106-Water channel shell, 1061-Water channel inlet, 1062-Water channel outlet, 101-First shell body, 102-Second shell body, 1011-First inner circumferential surface, 1012-Second inner circumferential surface, 1013-Third inner circumferential surface, 1010-Inner circumferential inclined surface, 10111-Shell groove, 135-Oil inlet, 136-Oil outlet, 81-Heat insulation and heat dissipation device, 82-Motor, 83-Cooling system, 84-Coupling, 85-Support platform, 86-Fan, 831-Water cooling system, 832-Air cooling system. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0021] Example 1, see Figure 1This utility model discloses a heat insulation and heat dissipation device, which includes a housing and a rotating shaft 2 disposed within the housing. Both ends of the rotating shaft extend outside the housing. The housing includes a housing body 10, a first end cap 11 disposed at one end of the housing body, a second end cap 12 disposed at the other end of the housing body, and a third end cap 13 disposed within the housing body. A heat insulation groove 111 is provided on the end face of the first end cap 11 near the housing body 10. Heat insulation cotton 112 is disposed within the heat insulation groove 111 and connected to the housing body 10. The first end cap 11 is fixedly connected to the housing body 10 by multiple bolts passing through the heat insulation cotton 112. The third end cap 13 divides the space within the housing body into sections closer to the first end cap 111. The first end cap 11 has a first space 191 and a second space 192 near the second end cap; the first end cap 11 has a first through hole 110, and one end of the rotating shaft 2 passes through the first through hole 110 to the outside of the first end cap 11; the first through hole 110 has a plurality of axially arranged grooves 1101; the second end cap 12 has a second through hole 120, and the other end of the rotating shaft 2 passes through the second through hole 120 to the outside of the second end cap 12; the second through hole 120 has a second bearing chamber 121 and a second bearing 122, the second bearing 122 is connected to the rotating shaft 2 to assist the rotation of the rotating shaft, and the second end cap 12 also has a second bearing cover 123, which covers... The second bearing chamber 121 is connected to the second end cover 12 by bolts; the third end cover 13 is provided with a third through hole 130, and the third bearing chamber 131 and the third bearing 132 are provided in the third through hole 130. The rotating shaft 2 is connected to the third through hole 130 through the third bearing 132. The third end cover 13 is also provided with a third bearing cover 133, which covers the third bearing chamber 131 and is connected to the third end cover 13 by bolts; the portion of the rotating shaft 2 located in the first space 191 is provided with a plurality of heat dissipation holes 21 radially; the portion of the rotating shaft 2 located in the second space 192 is provided with a suction hole 23 radially; the heat dissipation holes 21 and the suction holes 23 The two sides are connected by a shaft through hole 22; the shell body 10 located in the second space 192 is provided with an air inlet 103 and multiple exhaust ports 104; the third end cover 13 is provided with multiple exhaust holes 134, one of which is provided with an air inlet pipe 1341, which is connected to the air inlet 103; the shell body 10 also includes a water channel 105 provided on the outer peripheral surface and a water channel shell 106 covering the water channel 105. The water channel 105 is arranged around the outer periphery of the shell body 10 to increase the contact area between the cooling water and the shell body. The water channel shell 106 is also provided with a water channel inlet hole 1061 and a water channel outlet hole 1062.

[0022] Example 2, see Figure 2This utility model discloses a heat insulation and heat dissipation device. The end face of the third end cover 13 of the device is circular, and a plurality of exhaust holes 134 on the third end cover 13 are arranged along the center of the circle.

[0023] Example 3, see Figure 3 This utility model discloses a heat insulation and heat dissipation device. The device includes a housing and a rotating shaft 2 disposed within the housing. The housing includes a housing body 10, a first end cap 11 disposed at one end of the housing body, a second end cap 12 disposed at the other end of the housing body, and a third end cap 13 disposed within the housing body. The housing body 10 includes a first housing body 101 and a second housing body 102. The first housing body 101 includes a first inner circumferential surface 1011, a second inner circumferential surface 1012 larger than the inner diameter of the first inner circumferential surface, and an inner circumferential inclined surface 1010 between the first inner circumferential surface 1011 and the second inner circumferential surface 1012. The first inner circumferential surface 1011, the second inner circumferential surface 1012, and the inner circumferential inclined surface 1010 are arranged around the first housing body 101 to guide hot air out. The rest is the same as any other embodiment of this utility model or a combination of two or more embodiments.

[0024] Example 4, see Figure 4This utility model discloses a heat insulation and heat dissipation device, which includes a housing and a rotating shaft disposed within the housing. The housing includes a housing body, a first end cap, a second end cap, and a third end cap 13. The housing body 10 includes a first housing body 101 and a second housing body 102. The first housing body 101 includes a first inner circumferential surface 1011, a second inner circumferential surface 1012, a third inner circumferential surface 1013, and an inner circumferential inclined surface 1010 between adjacent inner circumferential surfaces. The first inner circumferential surface 1011 is annularly disposed on the first housing body 101 and close to the rotating shaft. A housing groove 10111 is also provided on the first inner circumferential surface 1011. The inner diameter of the second inner circumferential surface 1012 is larger than the inner diameter of the first inner circumferential surface 1011 and is annularly disposed on the first housing body 101. The inner diameter of the third inner circumferential surface 1013 is larger than the inner diameter of the second inner circumferential surface 1012 and is annularly disposed on the first housing body 101. The third end cap 13 is also provided with an oil inlet channel 135 and an oil outlet channel 136. One end of the oil inlet channel 135 and the oil outlet channel 136 are respectively connected to the third bearing chamber 131, and the other end is connected to the second housing body 102 and extends out of the second housing body 102. The third bearing chamber 131 is provided with two third bearings 132, a third fixed ring 137 and a third movable ring 138. The third fixed ring 137 is connected to the oil inlet channel 135 and the oil outlet channel 136 respectively. The third fixed ring 137 is fixedly connected to the third bearing chamber 131 and connected to the outer end of the third bearing 132. The third movable ring 138 is fitted on the rotating shaft and connected to the inner end of the third bearing 132. There is a gap between the third fixed ring 137 and the third movable ring 138 for holding the cooling oil entering through the oil inlet channel 135 and flowing into the third bearing 132 to cool it. The rest is the same as any other embodiment of this utility model or a combination of two or more embodiments.

[0025] Example 5, see Figure 5This utility model discloses a motor system, which includes the aforementioned heat insulation and heat dissipation device 81, a motor 82, and a cooling system 83. A coupling 84 is fixedly connected between the motor 82 and the rotating shaft of the heat insulation and heat dissipation device 81. When the motor rotates, it drives the coupling 84 and the rotating shaft of the heat insulation and heat dissipation device 81 to rotate. The cooling system 83 includes a water cooling system 831 and an air cooling system 832. The water cooling system 831 connects the heat insulation and heat dissipation device 81 and the motor 82 respectively, and circulates cooling air between the heat insulation and heat dissipation device 81 and the motor 82. The water cooling system 831 includes a water chiller, an outlet pipe, a connecting water pipe, and an inlet pipe. The outlet of the water chiller is connected to the outlet pipe. The other end of the water outlet pipe is connected to the water inlet of the motor, and the other end of the connecting pipe is connected to the water outlet of the motor and the water inlet of the heat insulation and heat dissipation device. The water inlet of the water chiller is connected to the water inlet pipe, and the other end of the water inlet pipe is connected to the water outlet of the heat insulation and heat dissipation device, so that the cooling water is cooled by the motor and then enters the heat insulation and heat dissipation device for cooling before returning to the water chiller for further cooling. The air cooling system 832 includes a blower and a connecting air pipe. One end of the connecting air pipe is connected to the air outlet of the motor and the other end is connected to the blower. The blower is connected to the air inlet pipe of the heat insulation and heat dissipation device to blow cold air into the interior of the heat insulation and heat dissipation device. The rest is the same as any other embodiment of this utility model or a combination of two or more embodiments.

[0026] Example 6, see Figure 6 This utility model discloses a motor system, which includes the aforementioned heat insulation and heat dissipation device 81, motor 82, cooling system 83, coupling 84 between motor 82 and heat insulation and heat dissipation device 81, fan 86, and support platform 85. The heat insulation and heat dissipation device 81, motor 82, and cooling system 83 are respectively installed and fixed on the support platform 85. The cooling system 83 connects the heat insulation and heat dissipation device 81 and the motor 82 and circulates cooling between the heat insulation and heat dissipation device and the motor. A protective cover is provided between motor 82 and heat insulation and heat dissipation device 81 and on the outer periphery of coupling 84. The rest is the same as any other embodiment of this utility model or a combination of two or more embodiments.

[0027] The technical solutions of the embodiments of this application will be clearly and completely described above with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is not intended to limit this application or its application or use in any way. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0028] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the structures, proportions, sizes, etc., shown in the accompanying drawings are only for the purpose of illustrative purposes and to facilitate understanding and reading by those skilled in the art, and are not intended to limit the implementation conditions of this application. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose achieved by this application, should still fall within the scope of the technical content disclosed in this application. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0029] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.

Claims

1. A heat insulation and heat dissipation device, the device comprising a housing and a rotating shaft disposed within the housing, the two ends of the rotating shaft extending beyond the housing, characterized in that: The shell includes a shell body, a first end cap disposed at one end of the shell body, a second end cap disposed at the other end of the shell body, and a third end cap disposed inside the shell body. The third end cap divides the space inside the shell body into a first space near the first end cap and a second space near the second end cap. The first end cap is provided with a first through hole slightly larger than the rotating shaft, and one end of the rotating shaft passes through the first through hole to the outside of the first end cap; The first through hole is provided with a plurality of grooves arranged along the axial direction; The second end cap is provided with a second through hole slightly larger than the rotating shaft, and the other end of the rotating shaft passes through the second through hole to the outside of the second end cap; The second through hole is provided with a second bearing chamber and a second bearing disposed in the second bearing chamber and cooperating with the rotating shaft; The third end cap is provided with a third through hole slightly larger than the rotating shaft. The third through hole is provided with a third bearing chamber and a third bearing that cooperates with the rotating shaft in the third bearing chamber. The rotating shaft is connected to the third through hole through the third bearing. The portion of the rotating shaft located in the first space has multiple heat dissipation holes arranged radially. The portion of the rotating shaft located in the second space is provided with an air intake hole along the radial direction; A shaft through hole is provided between the heat dissipation hole and the air intake hole for connection; The shell body includes a first shell body and a second shell body. The first shell body includes a first inner circumferential surface, a second inner circumferential surface with a different inner diameter from the first inner circumferential surface, and an inner circumferential oblique surface between the first inner circumferential surface and the second inner circumferential surface. The second shell body is provided with an air inlet and multiple exhaust ports; The third end cap has multiple exhaust holes on the end near the second inner circumferential surface, one of which has an air intake channel connected to the air intake on the second shell body.

2. The heat insulation and heat dissipation device according to claim 1, characterized in that: The rotating shaft includes multiple peripheral surfaces, which are contained within the outer peripheral surface of the rotating shaft and have different outer diameters. The multiple peripheral surfaces correspond to the housing.

3. The heat insulation and heat dissipation device according to claim 1, characterized in that: The second shell body includes a water channel disposed on the outer peripheral surface of the second shell body and a water channel shell covering the water channel. The water channel is disposed around the outer peripheral surface of the second shell body, and the water channel shell is fitted onto the portion of the outer peripheral surface of the second shell body with the water channel.

4. The heat insulation and heat dissipation device according to claim 1, characterized in that: A heat insulation groove is provided on the end face of the first end cap near the shell body. The heat insulation groove is provided along the outer periphery of the first end cap towards the first through hole of the first end cap. Heat insulation material is provided in the heat insulation groove and is connected and fixed to the shell body.

5. The heat insulation and heat dissipation device according to claim 1, characterized in that: The second end cover is also provided with a second bearing cover, which has a second bearing through hole slightly larger than the rotating shaft. The second bearing cover covers the second bearing chamber and is connected to the second end cover.

6. The heat insulation and heat dissipation device according to claim 1, characterized in that: The third end cover is also provided with a third bearing cover, which has a third bearing through hole slightly larger than the rotating shaft. The third bearing cover covers the third bearing chamber and is connected to the third end cover.

7. The heat insulation and heat dissipation device according to claim 1, characterized in that: The first inner peripheral surface of the first shell body is arranged in a ring on the first shell body. The first inner peripheral surface is close to the pivot and slightly larger than the pivot. The first inner peripheral surface is also provided with a shell groove.

8. The heat insulation and heat dissipation device according to claim 1, characterized in that: The third end cover has an oil inlet and an oil outlet, which are respectively connected to the third bearing chamber.

9. The heat insulation and heat dissipation device according to claim 1, characterized in that: The first end cap and the second end cap are provided with protrusions on their end faces, and the shell body is provided with recesses that mate with the protrusions.

10. The heat insulation and heat dissipation device according to claim 1, characterized in that: The shell body is provided with a shell recess, and the outer end face of the third end cap is connected and fixed to the shell recess.

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