CN219542702U

CN219542702U - Straight mill with heat dissipation function

Info

Publication number: CN219542702U
Application number: CN202320822721.5U
Authority: CN
Inventors: 车熙东; 李曰政; 洪得存; 谢怀超; 扈灯芳
Original assignee: Shandong Best Electric Tools Co ltd
Current assignee: Shandong Best Electric Tools Co ltd
Priority date: 2023-04-14
Filing date: 2023-04-14
Publication date: 2023-08-18
Anticipated expiration: 2033-04-14

Abstract

The utility model discloses a direct grinding machine with a heat dissipation function, which belongs to the technical field of direct grinding machine heat dissipation, wherein a shell comprises a front body part and a rear body part, a transmission shaft is arranged on the inner side of the front body part, and a driving motor is arranged on the inner side of the rear body part; a first mounting part is arranged on one side of the front body part, which is opposite to the rear body part, a second mounting part is arranged on one side of the rear body part, which is opposite to the front body part, and the first mounting part and the second mounting part are locked through a mounting positioning bolt; the cooling fan is arranged between the first installation part and the second installation part, a short arc vent is arranged on the second installation part, and a long arc vent is arranged on the first installation part; the ventilation opening is used for enabling the cooling fan to rotate to generate air flow for external exchange, the front body is further provided with a front hole and a rear hole, and the front hole and the rear hole are correspondingly positioned at two ends of the transmission shaft. The utility model realizes the front end heat dissipation of the transmission shaft.

Description

Straight mill with heat dissipation function

Technical Field

The utility model belongs to the technical field of heat dissipation of a direct grinding machine, and particularly relates to a direct grinding machine with a heat dissipation function.

Background

Because the direct grinding machine has high rotating speed during operation, the bearings on the motor and the output shaft in the shell can generate heat, and when the bearings are overheated, the lubricating oil of the bearings can fail, so that a cooling fan is generally arranged at the bearing of the motor output shaft to cool the bearings.

In the reference CN211029454U, a heat dissipation window is used for heat dissipation, but because of high-speed rotation and large abrasion of the front and rear bearings, heat dissipation is required at both front and rear positions, and the sealed housing can cause frictional heat concentration, so that heat cannot be dissipated.

The present utility model has been made in view of this.

Disclosure of Invention

In order to solve the technical problems, the utility model adopts the basic conception of the technical scheme that:

the utility model provides a straight mill that possesses heat dissipation function, includes switch, driving motor, radiator fan, transmission shaft and shell, the electricity is connected between switch and the driving motor, be equipped with the motor output shaft on the driving motor, install radiator fan on the motor output shaft;

the shell comprises a front body part and a rear body part, the transmission shaft is arranged on the inner side of the front body part, and the driving motor is arranged on the inner side of the rear body part;

a first mounting part is arranged on one side of the front body part, which is opposite to the rear body part, a second mounting part is arranged on one side of the rear body part, which is opposite to the front body part, and the first mounting part and the second mounting part are locked through a mounting positioning bolt;

the cooling fan is arranged between the first installation part and the second installation part, a short arc vent is arranged on the second installation part, and a long arc vent is arranged on the first installation part; the ventilation opening is used for enabling the cooling fan to rotate to generate air flow for external exchange, the front body is further provided with a front hole and a rear hole, and the front hole and the rear hole are correspondingly positioned at two ends of the transmission shaft. The front hole and the rear hole are radiating holes for exchanging heat of the precursor outwards. According to the utility model, heat dissipation holes are formed in the positions, close to the connecting bearings, of the two ends of the transmission shaft to discharge heat.

In a further technical solution, a fan partition is installed in the first and second mounting portions, and the fan partition is adapted to isolate the radiator fan from the precursor portion.

In a further technical aspect, the first mounting portion has a diameter larger than the other side diameter of the precursor portion; the diameter of the second mounting part is larger than that of the other side of the rear body part.

In a further technical scheme, the front body part comprises an outer shell and an inner shell, a connecting bearing is arranged at the joint of the outer shell and the inner shell which is positioned at one end far away from the cooling fan, the outer shell and the inner shell are suitable for relative rotation, the inner shell is fixedly connected with a fan partition board, and a transmission shaft is arranged in the inner shell;

and the outer shell and the inner shell are respectively provided with a strip-shaped heat dissipation hole.

In a further technical scheme, an adjusting ring plate is arranged at one end, close to the cooling fan, of the inner shell, an arc-shaped groove is formed in the adjusting ring plate, and a limiting portion is arranged on the inner side of the outer shell and suitable for sliding in the arc-shaped groove.

In a further technical scheme, a first positioning hole is formed in the adjusting ring plate, an outer ring plate is arranged on the outer side of the shell, a second positioning hole is formed in the outer ring plate, a third positioning hole is formed in the mounting portion, and a positioning bolt is suitable for being mounted between the first positioning hole, the second positioning hole and the third positioning hole to be locked.

Specifically, the inner shell and the outer shell which can rotate relatively are arranged, so that the strip heat dissipation holes can be enlarged in relative external leakage area according to rotation when the heat dissipation device is used, and heat dissipation can be realized through a larger area.

In a further technical scheme, the positioning holes II and the arc-shaped grooves are provided with two groups, and the two groups of arc-shaped grooves are suitable for being symmetrical relative to the central axis of the transmission shaft.

In a further technical scheme, a shell protecting sleeve is arranged outside the precursor part, anti-skidding patterns are distributed on the shell protecting sleeve, and the shell protecting sleeve is made of rubber materials.

In a further technical solution, a dust cover is further provided on the rear body.

The beneficial effects are that:

according to the utility model, heat dissipation holes are formed in the positions, close to the connecting bearings, of the two ends of the transmission shaft to discharge heat. The inner shell and the outer shell which can rotate relatively are arranged, and the strip heat dissipation holes are rotated according to the needs during use to enlarge the relative external leakage area, so that heat dissipation can be realized through a larger area.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described, and it will be obvious to those skilled in the art that other drawings can be obtained according to these drawings without inventive effort.

In the drawings:

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a front view of the straight mill of the present utility model;

FIG. 3 is a cross-sectional view of a straight mill of the present utility model;

FIG. 4 is a cross-sectional view of example 2 of the present utility model;

FIG. 5 is an enlarged schematic view of FIG. 4 at A;

FIG. 6 is an enlarged schematic view of FIG. 4 at B;

fig. 7 is a schematic view of an outer ring plate according to the present utility model.

In the figure: 1. a heat radiation fan; 2. a transmission shaft; 3. an output shaft of the motor; 4. a precursor portion; 5. a rear body portion; 6. positioning bolts; 7. a fan partition;

41. a first mounting part; 42. a long arc vent; 43. a front hole; 44. a rear hole;

45. a housing; 46. an inner case; 47. connecting a bearing; 48. a long strip heat dissipation hole; 49. an adjusting ring plate; 410. an arc-shaped groove; 411. a limit part; 412. positioning holes I; 413. an outer ring plate; 414. positioning holes II; 415. a housing protective sleeve;

51. a second mounting part; 52. a short arc vent; 53. positioning holes III; 54. a dust cover.

Detailed Description

The present utility model will be described in further detail with reference to the following examples in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

The principles of the utility model will be further described with reference to the drawings and specific examples.

Example 1

As shown in fig. 1 to 3, in an embodiment of the present utility model, a direct grinding machine with a heat dissipation function includes a power switch, a driving motor, a heat dissipation fan 1, a transmission shaft 2, and a housing 45, wherein the power switch and the driving motor are electrically connected, a motor output shaft 3 is arranged on the driving motor, and the heat dissipation fan 1 is installed on the motor output shaft 3;

the shell 45 comprises a front body 4 and a rear body 5, the transmission shaft 2 is arranged on the inner side of the front body 4, and the driving motor is arranged on the inner side of the rear body 5;

a first mounting part 41 is arranged on one side of the front body part 4 opposite to the rear body part 5, a second mounting part 51 is arranged on one side of the rear body part 5 opposite to the front body part 4, and the first mounting part 41 and the second mounting part 51 are locked through a mounting positioning bolt 6;

the heat radiation fan 1 is arranged between the first installation part 41 and the second installation part 51, a short arc vent 52 is arranged on the second installation part 51, and a long arc vent 42 is arranged on the first installation part 41;

the front body 4 is also provided with a front hole 43 and a rear hole 44, and the front hole 43 and the rear hole 44 are correspondingly positioned at two ends of the transmission shaft 2.

A fan partition 7 is installed in the first mounting portion 41 and the second mounting portion 51, and the fan partition 7 is adapted to isolate the radiator fan 1 from the front body 4. The diameter of the first mounting part 41 is larger than the diameter of the other side of the front body part 4; the second mounting part 51 has a diameter larger than the other side of the rear body 5. The shell protection sleeve 416 is arranged outside the front body 4, anti-skidding patterns are distributed on the shell protection sleeve 416, and the shell protection sleeve 416 is made of rubber materials. A dust cover 54 is also provided on the rear body 5.

Example 2

As shown in fig. 4 to 7, in another embodiment of the present utility model, on the basis of example 1, the front body 4 includes an outer shell 45 and an inner shell 46, a connection bearing 47 is installed at a connection portion between the outer shell 45 and the inner shell 46 at an end far from the cooling fan, the outer shell 45 and the inner shell 46 are adapted to rotate relatively, the inner shell 46 is fixedly connected with the fan partition 7, and a transmission shaft 2 is installed inside the inner shell 46;

the outer shell 45 and the inner shell 46 are provided with long heat dissipation holes 48. An adjusting ring plate 49 is mounted at one end of the inner shell 46, which is close to the cooling fan 1, an arc-shaped groove 410 is formed in the adjusting ring plate 49, a limiting part 411 is arranged at the inner side of the outer shell 45, and the limiting part 411 is suitable for sliding in the arc-shaped groove 410.

The adjusting ring plate 49 is provided with a first positioning hole 412, the outer side of the housing 45 is provided with an outer ring plate 413, the outer ring plate 413 is provided with a second positioning hole 414, the mounting part 51 is provided with a third positioning hole 53, and the positioning holes 412, 414 and 53 are suitable for being locked by the positioning bolt 6. The second positioning hole 414 and the arc-shaped groove 410 are respectively provided with two groups, the first positioning hole 412 and the third positioning hole 53 can be uniquely arranged, and the positioning holes 414 are positioned and installed at different positions. The two sets of said arcuate slots 410 are adapted to be symmetrical with respect to the central axis of the drive shaft 2.

Before the operation personnel use, can take off positioning bolt, back relative rotation shell and inner shell for rectangular louvre's relative intercommunication area is big enough, and the heat dissipation is more direct. After that, through installing locking positioning bolts, the back body part and the front body part are held by hands, and the power switch is turned on, so that the output end of the driving motor rotates to drive the motor output shaft and the cooling fan, and the end part of the driving shaft is cooled.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims

1. The utility model provides a straight mill that possesses heat dissipation function, includes switch, driving motor, radiator fan, transmission shaft and shell, the electricity is connected between switch and the driving motor, be equipped with the motor output shaft on the driving motor, install radiator fan on the motor output shaft;

it is characterized in that the method comprises the steps of,

the cooling fan is arranged between the first installation part and the second installation part, a short arc vent is arranged on the second installation part, and a long arc vent is arranged on the first installation part;

the front body part is also provided with a front hole and a rear hole, and the front hole and the rear hole are correspondingly positioned at two ends of the transmission shaft.

2. The straight mill with heat dissipation function according to claim 1, wherein: and the first installation part and the second installation part are internally provided with a fan baffle plate, and the fan baffle plate is suitable for isolating the cooling fan and the precursor part.

3. The straight mill with heat dissipation function according to claim 1, wherein: the diameter of the first mounting part is larger than that of the other side of the precursor part; the diameter of the second mounting part is larger than that of the other side of the rear body part.

4. The straight mill with heat dissipation function according to claim 2, wherein: the front body part comprises an outer shell and an inner shell, a connecting bearing is arranged at the joint of the outer shell and the inner shell which is positioned at one end far away from the cooling fan, the outer shell and the inner shell are suitable for relative rotation, the inner shell is fixedly connected with a fan partition board, and a transmission shaft is arranged in the inner shell;

5. The straight mill with heat dissipation function according to claim 4, wherein: the inner shell is close to radiator fan's one end and installs the adjusting ring board, the last arc wall of seting up of adjusting ring board, the shell inboard is provided with spacing portion, spacing portion is suitable for and slides in the arc wall.

6. The straight mill with heat dissipation function according to claim 5, wherein: the adjusting ring plate is provided with a first positioning hole, the outer side of the shell is provided with an outer ring plate, the outer ring plate is provided with a second positioning hole, the mounting part II is provided with a third positioning hole, and the first positioning hole, the second positioning hole and the third positioning hole are suitable for being locked by a positioning bolt.

7. The straight mill with heat dissipation function according to claim 6, wherein: the second positioning holes and the arc-shaped grooves are respectively provided with two groups, and the two groups of arc-shaped grooves are suitable for being symmetrical relative to the central axis of the transmission shaft.

8. A straight mill with heat dissipation function according to any one of claims 1-7, characterized in that: the anti-skid protective sleeve is arranged outside the front body, anti-skid patterns are arranged on the shell protective sleeve, and the shell protective sleeve is made of rubber materials.

9. The straight mill with heat dissipation function according to claim 8, wherein: and a dust cover is also arranged on the rear body.