CN222806727U - A dry mill with ventilation and heat dissipation design - Google Patents
A dry mill with ventilation and heat dissipation design Download PDFInfo
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- CN222806727U CN222806727U CN202421935333.9U CN202421935333U CN222806727U CN 222806727 U CN222806727 U CN 222806727U CN 202421935333 U CN202421935333 U CN 202421935333U CN 222806727 U CN222806727 U CN 222806727U
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Abstract
一种通风散热设计的干磨机，包括：具有一端敞口的机壳、设置于机壳内的电机以及与电机的驱动轴连接的偏心块，电机通过螺栓连接于机壳内，且电机的外壁与机壳的内壁之间具有间隙，偏心块的外侧上设置有风叶转盘，机壳上开设有进风口和出风口，进风口位于电机远离偏心块的端部上，出风口位于风叶转盘的外侧。与现有技术相比，本实用新型的优点在于该通过在电机和机壳间设置间隙，并利用风叶转盘旋转时产生的气流，形成腔室内负压，加速了空气流通，使外部空气通过进气口流入至电机出，将电机及干磨机内部组件上的热量从排气口排出，显著提高了散热效率，从而有效降低了电机和内部组件的工作温度。
A dry grinder with ventilation and heat dissipation design includes: a casing with an open end, a motor arranged in the casing, and an eccentric block connected to the driving shaft of the motor, the motor is connected to the casing by bolts, and there is a gap between the outer wall of the motor and the inner wall of the casing, a fan blade turntable is arranged on the outer side of the eccentric block, and an air inlet and an air outlet are opened on the casing, the air inlet is located at the end of the motor away from the eccentric block, and the air outlet is located on the outer side of the fan blade turntable. Compared with the prior art, the advantage of the utility model is that by setting a gap between the motor and the casing and utilizing the airflow generated when the fan blade turntable rotates, a negative pressure is formed in the chamber, the air circulation is accelerated, the external air flows into the motor through the air inlet, and the heat on the motor and the internal components of the dry grinder is discharged from the exhaust port, which significantly improves the heat dissipation efficiency, thereby effectively reducing the working temperature of the motor and the internal components.
Description
Technical Field
The utility model relates to the technical field of dry grinding machines, in particular to a dry grinding machine with a ventilation and heat dissipation design.
Background
The dry grinder is an electric tool capable of effectively reducing the labor intensity of workers, and has the main function of grinding or polishing the surface of a material through a polishing disc rotating at a high speed.
Compared with a large-sized dry mill, the handheld dry mill has the advantages that the size is smaller, the structure is more compact and natural, the portable dry mill is convenient for operators to carry and carry out dry milling operation in a limited space, but the dry mill can generate a large amount of heat energy along with the increase of working strength and duration, a motor and internal components can generate a large amount of heat energy due to friction and electric energy conversion efficiency, the traditional heat dissipation mode mainly adopts natural cooling, the heat dissipation rate of the method is lower, the working efficiency is influenced, the service life of equipment is shortened due to overheating of the motor, and potential safety hazards can be possibly caused.
Disclosure of utility model
The utility model aims to solve the problems in the prior art and provide a dry mill which can effectively realize ventilation and heat dissipation design of heat dissipation for a motor.
The technical scheme includes that the dry mill with the ventilation and heat dissipation design comprises a shell with an opening at one end, a motor arranged in the shell and an eccentric block connected with a driving shaft of the motor, wherein the motor is connected in the shell through bolts, a gap is reserved between the outer wall of the motor and the inner wall of the shell, a fan blade turntable is arranged on the outer side of the eccentric block, an air inlet and an air outlet are formed in the shell, the air inlet is positioned at the end part of the motor far away from the eccentric block, and the air outlet is positioned on the outer side of the fan blade turntable;
The lower end of the eccentric block is provided with an output shaft, the output shaft is connected with a polishing disk, and the plane of the upper end of the polishing disk is attached to the opening of the shell and forms a cavity;
When the motor drives the fan blade turntable to rotate through the eccentric block, the air pressure inside the cavity is lower than the air pressure outside the shell, so that air outside the shell is sucked into the cavity through the air inlet and flows into the motor, and heat generated by the motor is discharged from the air outlet through the gap.
Preferably, a plurality of limiting strips are arranged on the inner wall of the shell, the limiting strips are arranged along the length direction of the motor, the limiting strips are abutted to the outer wall of the motor, and gaps are formed between the adjacent limiting strips.
Preferably, the motor has including the casing, be fixed in the stator of shells inner wall, rotate set up in the rotor in the stator to and set up in the upper and lower both ends of casing are uncovered and be provided with the end cover that is used for installing the rotor, be provided with a plurality of fins on the outer wall of casing, a plurality of the fin evenly distributed and around the casing, the outer wall of end cover with spacing supports and leans on, follow on the end cover the length direction of casing has seted up the through-hole, air intake with the air outlet with the through-hole intercommunication.
Preferably, the eccentric block is provided with a first eccentric part and a second eccentric part integrally formed with the first eccentric part, the first eccentric part is positioned above the second eccentric part, a first limiting surface is arranged at the lower end of the side part of the first eccentric part, which is far away from the second eccentric part, a second limiting surface is arranged at the upper end of the side part of the second eccentric part, which is far away from the first eccentric part, a limiting through groove is formed in the fan blade turntable, a propping part and a pair of first buckles are arranged on the groove wall of the limiting through groove, and the pair of first buckles are symmetrically arranged along the propping part;
When the eccentric block is connected with the fan blade turntable, the first limiting surface is propped against the propping part, and the pair of first buckles are clamped with the second limiting surface.
Preferably, the right side of the casing has a holding part and a storage part integrally formed with the holding part, the storage part is used for placing and controlling a control module for controlling the motor to rotate, grooves are formed in two sides of the storage part, and the air inlet is formed in the bottom wall of the groove.
Preferably, a detachable plaque is arranged on the groove, the plaque is positioned at the outer side of the air outlet, a second buckle is arranged at the inner side of the plaque, and the second buckle stretches into the air inlet to be connected with the inner side of the storage part in a clamping mode.
Preferably, the air inlet is provided with a plurality of first diversion notches which are obliquely arranged, a plurality of baffle plates are correspondingly arranged on the ornamental plate, the baffle plates are positioned outside the first diversion notches and keep a certain distance with the bottom wall of the groove, second diversion notches are arranged between adjacent baffle plates, and the first diversion notches are communicated with the second diversion notches.
Preferably, the right side of the casing is provided with a dry grinding assembly part, an assembly chamber with an annular structure is arranged at the end part of the dry grinding assembly part far away from the motor, the air outlet is arranged on the assembly chamber, and the fan blades are positioned on the inner side of the assembly chamber.
Preferably, the opening of the casing is rotatably connected with a dust ring, and the dust ring is attached to the upper end plane of the polishing disc.
Preferably, the polishing disk is provided with an air suction hole, the shell is provided with a dust removal port communicated with the air suction hole, the dust removal port is positioned between the dust ring and the assembly chamber, and the dust removal port can be connected with external dust collection equipment.
The utility model has the beneficial effects that through arranging a gap between the motor and the shell and utilizing the airflow generated when the fan blade turntable rotates, negative pressure in the cavity is formed, air circulation is accelerated, external air flows into the motor through the air inlet, heat on the motor and the internal components of the dry mill is discharged from the air outlet, and the heat dissipation efficiency is obviously improved, so that the working temperatures of the motor and the internal components are effectively reduced.
Drawings
FIG. 1 is a schematic diagram of the structure of the present dry mill;
FIG. 2 is a cross-sectional view of the structure of the present dry mill;
FIG. 3 is a schematic structural view of the housing;
FIG. 4 is a schematic diagram of the motor, eccentric block and fan blade turntable;
fig. 5 is a schematic view of the structure of the eccentric mass and the wind She Zhuaipan.
Reference numerals illustrate:
1. The machine comprises a shell, a holding part, an 11 storage part, a 12 dry grinding assembly part, 100, an air inlet, 101, an air outlet, 102, a gap, 103, a limit bar, 104, a groove, 105, a decoration plate, 106, a second buckle, 107, a first diversion notch, 108, a stop block, 109, a second diversion notch, 110, an assembly chamber, 111, a dust ring, 112, an air suction hole, 113 and a dust removal opening;
2. 200 parts of motor, a shell, 201 parts of stator, 202 parts of rotor, 203 parts of end cover, 204 parts of through hole;
3. an eccentric block; 30, a fan blade turntable, 300, a first eccentric part, 301, a second eccentric part, 302, a first limiting surface, 303, a second limiting surface, 304, a limiting through groove, 305, a propping part, 306 and a first buckle;
4. Polishing disk;
5. a chamber.
Detailed Description
The utility model is further described below with reference to the accompanying drawings:
Referring to fig. 1 to 5, the dry grinding machine with ventilation and heat dissipation design comprises a machine shell 1 with one end open, a motor 2 arranged in the machine shell 1 and an eccentric block 3 connected with a driving shaft of the motor 2, wherein the motor 2 is connected in the machine shell 1 through bolts, a gap 102 is formed between the outer wall of the motor 2 and the inner wall of the machine shell 1, a fan blade rotary table 30 is arranged on the outer side of the eccentric block 3, an air inlet 100 and an air outlet 101 are formed in the machine shell 1, the air inlet 100 is arranged at the end part of the motor 2 far away from the eccentric block 3, the air outlet 101 is arranged on the outer side of the fan blade rotary table 30, an output shaft is arranged at the lower end of the eccentric block 3, a polishing disc 4 is connected on the output shaft, the upper end plane of the polishing disc 4 is attached to the opening of the machine shell 1 and is formed with a cavity 5, and when the motor 2 drives the fan blade rotary table 30 to rotate through the eccentric block 3, air pressure inside the cavity 5 is lower than air pressure outside the machine shell 1, so that air outside the machine shell 1 is sucked into the cavity 5 through the air inlet 100 and flows into the motor 2, and heat generated by the motor 2 is discharged from the air outlet 101 through the gap 102.
The dry grinding machine mainly comprises a machine shell 1 with one end open, wherein a motor 2 is arranged in the machine shell 1, the motor 2 is fixed in the machine shell 1 along the height direction of the machine shell through bolts, and a certain gap 102 is reserved between the outer wall of the motor 2 and the inner wall of the machine shell 1 so as to facilitate air circulation. An air inlet 100 and an air outlet 101 are designed on the casing 1, the air inlet 100 is positioned at one end of the motor 2 far away from the eccentric block 3, and the air outlet 101 is positioned at the outer side of the fan blade turntable 30. The drive shaft of motor 2 links to each other with eccentric block 3, and the fan blade carousel 30 is equipped with in the outside of eccentric block 3, and the rotation of fan blade carousel 30 can promote the air flow to realize the heat dissipation, and when motor 2 drove fan blade carousel 30 rotation through eccentric block 3, can produce the low pressure district in cavity 5, impels outside air to get into through air intake 100, through the clearance 102 around motor 2, takes away the heat that motor 2 produced, finally discharges from air outlet 101.
Preferably, as shown in fig. 2 and 3, a plurality of limit bars 103 are provided on the inner wall of the casing 1, the limit bars 103 are provided along the length direction of the motor 2, the limit bars 103 are abutted against the outer wall of the motor 2, and gaps 102 are formed between adjacent limit bars 103.
Be equipped with many spacing 103 on the casing 1 inner wall, these spacing 103 are arranged along motor 2 length direction, with motor 2 outer wall contact, the clearance 102 that forms between the adjacent spacing 103 helps the free circulation of air, and spacing 103 plays the effect of supporting and positioning motor 2 simultaneously, ensures the stability of motor 2 in the course of the work.
Further, as shown in fig. 1 and 4, the motor 2 includes a housing 200, a stator 201 fixed on the inner wall of the housing 200, a rotor 202 rotatably disposed in the stator 201, and an end cover 203 disposed at the upper and lower ends of the housing 200 and open and provided with a plurality of fins for mounting the rotor 202, wherein the plurality of fins are uniformly distributed on the outer wall of the housing 200 and surround the housing 200, the outer wall of the end cover 203 abuts against the limit bar 103, a through hole 204 is formed in the end cover 203 along the length direction of the housing 200, and the air inlet 100 and the air outlet 101 are communicated with the through hole 204.
The motor 2 is composed of a shell 200, a stator 201, a rotor 202 and an end cover 203, wherein a plurality of fins are uniformly distributed on the outer wall of the shell 200, the fins increase the surface area of the shell 200 and are beneficial to rapid heat dissipation, and the end cover 203 is provided with a through hole 204 which is connected with the air inlet 100 and the air outlet 101 on the shell 1 to ensure that air can smoothly enter and exit and take away heat generated during the operation of the motor 2.
Further, as shown in fig. 2 to 5, the eccentric block 3 has a first eccentric portion 300 and a second eccentric portion 301 integrally formed with the first eccentric portion 300, the first eccentric portion 300 is located above the second eccentric portion 301, a first limiting surface 302 is disposed on a lower end of a side portion of the first eccentric portion 300 away from the second eccentric portion 301, a second limiting surface 303 is disposed on an upper end of a side portion of the second eccentric portion 301 away from the first eccentric portion 300, a limiting through groove 304 is formed on the fan blade turntable 30, a supporting portion 305 and a pair of first buckles 306 are disposed on a groove wall of the limiting through groove 304, the pair of first buckles 306 are symmetrically disposed along the supporting portion 305, and when the eccentric block 3 is connected with the fan blade turntable 30, the first limiting surface 302 abuts against the supporting portion 305, and the pair of first buckles 306 are in clamping connection with the second limiting surface 303.
The eccentric block 3 comprises a first eccentric part 300 and a second eccentric part 301, the two parts are integrally formed, the first eccentric part 300 is provided with a first limiting surface 302, the second eccentric part 301 is provided with a second limiting surface 303, the fan blade turntable 30 is provided with a corresponding limiting through groove 304, the groove wall is provided with a propping part 305 and a pair of first buckles 306, when the eccentric block 3 is assembled with the fan blade turntable 30, the first limiting surface 302 is contacted with the propping part 305, and the first buckles 306 are clamped with the second limiting surface 303, so that firm connection and accurate position of the two are ensured.
Preferably, as shown in fig. 1 to 3, the right side of the casing 1 has a holding portion 10 and a storage portion 11 integrally formed with the holding portion 10, the storage portion 11 is used for placing a control module for controlling the motor 2 to rotate, two sides of the storage portion 11 are provided with grooves 104, and a bottom wall of the grooves 104 is provided with an air inlet 100.
The right side of the shell 1 is integrated with the holding part 10 and the storage part 11, the holding part 10 is convenient for a user to hold and operate, the storage part 11 is used for storing a control module for controlling the operation of the motor 2, and meanwhile, the air inlet 100 is formed in the bottom wall of the groove 104 on two sides of the storage part 11, so that the air inlet is not blocked when the dry grinding machine is held manually.
Further, as shown in fig. 1 and 3, a detachable plaque 105 is disposed on the groove 104, the plaque 105 is located at the outer side of the air outlet 101, a second buckle 106 is disposed at the inner side of the plaque 105, and the second buckle 106 extends into the air inlet 100 to be clamped with the inner side of the storage part 11.
The detachable plaque 105 on the groove 104 covers the air outlet 101, and the second buckle 106 on the inner side of the plaque 105 is clamped with the inner side of the storage part 11, so that external sundries are prevented from entering the casing 1 from the air inlet, and damage is caused to parts such as the motor 2.
Further, as shown in fig. 1 and 3, the air inlet 100 has a plurality of first diversion notches 107 arranged in an oblique direction, a plurality of stoppers 108 are correspondingly disposed on the decoration board 105, the stoppers 108 are located outside the first diversion notches 107 and keep a certain distance from the bottom wall of the groove 104, a second diversion notch 109 is disposed between adjacent stoppers 108, and the first diversion notch 107 is communicated with the second diversion notch 109.
The air inlet 100 of the dry grinding machine comprises a plurality of first diversion notches 107 which are obliquely arranged, the oblique arrangement of the first diversion notches 107 can guide air flow to flow along a specific direction, resistance when air enters is reduced, heat dissipation efficiency is improved, in addition, a plurality of stop blocks 108 are correspondingly arranged on the ornamental plate 105, the stop blocks 108 are positioned outside the first diversion notches 107 and keep a certain distance from the bottom wall of the groove 104, and foreign matters can be prevented from directly entering the machine through the design, and meanwhile, air flow cannot be hindered. A second diversion notch 109 is arranged between the adjacent stop blocks 108 and is communicated with the first diversion notch 107 to form a continuous air diversion system together, so that air can enter from the air inlet 100 smoothly, pass around the motor 2 and then be discharged from the air outlet 101, and the whole heat dissipation process is completed.
Further, as shown in fig. 1 and 3, the right side of the casing 1 has a dry grinding assembly portion 12, an assembly chamber 110 with a ring structure is disposed at the end of the dry grinding assembly portion 12 far away from the motor 2, the air outlet 101 is opened on the assembly chamber 110, and the fan blades are located inside the assembly chamber 110.
The right side of the casing 1 is designed with a dry grinding assembly part 12 for placing components to be driven such as a motor, and an assembly chamber 110 with an annular structure is arranged at the end part of the dry grinding assembly part 12 far away from the holding part 10, and the assembly chamber 110 not only provides an installation space for a dry grinding tool, but also skillfully integrates the air outlet 101. The air outlet 101 is formed on the assembly chamber 110, which means that when the fan blade turntable 30 rotates, the fan blade turntable is located at the inner side of the assembly chamber 110, and generated air flow can be directly discharged through the air outlet 101.
Further, as shown in fig. 1, a dust ring 111 is rotatably connected to the opening of the casing 1, and the dust ring 111 is attached to the upper end plane of the polishing disk 4.
The open part of the shell 1 is rotationally connected with the dust ring 111, the dust ring 111 is tightly attached to the upper end plane of the polishing disk 4 to form an effective sealing barrier, the polishing disk 4 is stable in rotation, meanwhile, dust and fragments can be effectively prevented from entering the shell 1 due to the tight attachment with the polishing disk 4, and the internal components are protected from pollution and abrasion.
The polishing disk 4 is provided with an air suction hole 112, the shell 1 is provided with a dust removal port 113 communicated with the air suction hole 112, the dust removal port 113 is positioned between the dust ring 111 and the assembly chamber 110, and the dust removal port 113 can be connected with external dust collection equipment.
When the polishing machine is used, the dust removing opening 113 is connected with external dust collecting equipment, after the dust collecting equipment is opened, dust can enter the assembly chamber through the air suction hole 112 and finally is sucked into the dust collecting equipment from the dust removing opening 113 in the polishing process, so that dust generated in the polishing process is prevented from drifting everywhere.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear are used in the embodiments of the present utility model) are merely for explaining the relative positional relationship, movement conditions, and the like between the components in a certain specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicators are changed accordingly.
Certain terms are used throughout the description and claims to refer to particular products. It will be appreciated by those of ordinary skill in the art that manufacturers may refer to a same component by different names. It is not intended to distinguish between components that differ in function but not name. In the following description and claims, the terms "include," have "and" include "are open-ended terms, and thus should be interpreted to mean" include, but not limited to.
While the foregoing is directed to the preferred embodiments of the present utility model, it will be appreciated by those skilled in the art that changes and modifications may be made without departing from the principles of the utility model, such changes and modifications are also intended to be within the scope of the utility model.
Claims (10)
1. The utility model provides a dry mill of ventilation heat dissipation design, includes, has one end open casing, sets up motor and the eccentric block of being connected with the drive shaft of motor in the casing, its characterized in that, the motor pass through bolted connection in the casing, and have the clearance between the outer wall of motor and the inner wall of casing, be provided with the fan blade carousel on the outside of eccentric block, set up air intake and air outlet on the casing, the air intake is located the motor is kept away from on the tip of eccentric block, the air outlet is located the outside of fan blade carousel;
The lower end of the eccentric block is provided with an output shaft, the output shaft is connected with a polishing disk, and the plane of the upper end of the polishing disk is attached to the opening of the shell and forms a cavity;
When the motor drives the fan blade turntable to rotate through the eccentric block, the air pressure inside the cavity is lower than the air pressure outside the shell, so that air outside the shell is sucked into the cavity through the air inlet and flows into the motor, and heat generated by the motor is discharged from the air outlet through the gap.
2. The dry grinding machine with the ventilation and heat dissipation design according to claim 1, wherein a plurality of limit strips are arranged on the inner wall of the machine shell, the limit strips are arranged along the length direction of the motor, the limit strips are abutted against the outer wall of the motor, and the gaps are formed between the adjacent limit strips.
3. The dry grinding machine with the ventilation and heat dissipation design according to claim 2, wherein the motor comprises a shell, a stator fixed on the inner wall of the shell, a rotor rotatably arranged in the stator, and end covers arranged at the upper end and the lower end of the shell and provided with the rotor, a plurality of fins are arranged on the outer wall of the shell, the fins are uniformly distributed and surround the shell, the outer wall of the end cover is abutted against the limiting strip, through holes are formed in the end covers along the length direction of the shell, and the air inlet and the air outlet are communicated with the through holes.
4. The dry grinding machine with the ventilation and heat dissipation design according to claim 3, wherein the eccentric block is provided with a first eccentric part and a second eccentric part integrally formed with the first eccentric part, the first eccentric part is positioned above the second eccentric part, a first limiting surface is arranged at the lower end of the side part of the first eccentric part, which is far away from the second eccentric part, a second limiting surface is arranged at the upper end of the side part of the second eccentric part, which is far away from the first eccentric part, a limiting through groove is formed in the fan blade turntable, a propping part and a pair of first buckles are arranged on the wall of the limiting through groove, and the pair of first buckles are symmetrically arranged along the propping part;
When the eccentric block is connected with the fan blade turntable, the first limiting surface is propped against the propping part, and the pair of first buckles are clamped with the second limiting surface.
5. The dry grinding machine with the ventilation and heat dissipation design according to claim 1, wherein the right side of the machine shell is provided with a holding part and a storage part integrally formed with the holding part, the storage part is used for placing a control module for controlling the motor to rotate, grooves are formed in two sides of the storage part, and the air inlet is formed in the bottom wall of the groove.
6. The dry grinding machine with the ventilation and heat dissipation design according to claim 5, wherein the detachable decorative plate is arranged on the groove, the decorative plate is located on the outer side of the air outlet, a second buckle is arranged on the inner side of the decorative plate, and the second buckle stretches into the air inlet to be clamped with the inner side of the storage part.
7. The dry grinding machine with the ventilation and heat dissipation design according to claim 6, wherein the air inlet is provided with a plurality of first diversion notches which are obliquely arranged, a plurality of baffle plates are correspondingly arranged on the ornamental plate, the baffle plates are positioned outside the first diversion notches and keep a certain distance from the bottom wall of the groove, a second diversion notch is arranged between every two adjacent baffle plates, and the first diversion notch is communicated with the second diversion notch.
8. The dry grinding machine with the ventilation and heat dissipation design according to claim 6, wherein the right side of the machine shell is provided with a dry grinding assembly part, an assembly chamber with an annular structure is arranged at the end part of the dry grinding assembly part far away from the motor, the air outlet is arranged on the assembly chamber, and the fan blade is positioned on the inner side of the assembly chamber.
9. The dry grinder with ventilation and heat dissipation according to claim 8, wherein a dust ring is rotatably connected to the opening of the housing, and the dust ring is attached to the upper end plane of the polishing disk.
10. The dry grinding machine with the ventilation and heat dissipation design according to claim 9, wherein the polishing disc is provided with an air suction hole, the shell is provided with a dust removal port communicated with the air suction hole, the dust removal port is positioned between the dust ring and the assembly chamber, and the dust removal port can be connected with external dust collection equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421935333.9U CN222806727U (en) | 2024-08-12 | 2024-08-12 | A dry mill with ventilation and heat dissipation design |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421935333.9U CN222806727U (en) | 2024-08-12 | 2024-08-12 | A dry mill with ventilation and heat dissipation design |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222806727U true CN222806727U (en) | 2025-04-29 |
Family
ID=95461017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202421935333.9U Active CN222806727U (en) | 2024-08-12 | 2024-08-12 | A dry mill with ventilation and heat dissipation design |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222806727U (en) |
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2024
- 2024-08-12 CN CN202421935333.9U patent/CN222806727U/en active Active
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