CN217475589U - Transmission structure of electrode tip sharpening machine - Google Patents
Transmission structure of electrode tip sharpening machine Download PDFInfo
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- CN217475589U CN217475589U CN202220934046.0U CN202220934046U CN217475589U CN 217475589 U CN217475589 U CN 217475589U CN 202220934046 U CN202220934046 U CN 202220934046U CN 217475589 U CN217475589 U CN 217475589U
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Abstract
The utility model discloses a transmission structure of an electrode tip sharpening machine, which belongs to the technical field of electric tools and comprises a driving gear, an intermediate gear and a load gear, wherein the driving gear is in driving connection with an output shaft of a motor, the load gear is fixedly connected with a sharpening cutter assembly, the tooth number of the driving gear is less than that of the load gear, and the intermediate gear is respectively in meshing connection with the driving gear and the load gear; the centers of the driving gear, the intermediate gear and the load gear are distributed on the same plane in a triangular shape, the center lines of the driving gear and the intermediate gear and the center lines of the driving gear and the load gear are intersected to form an included angle alpha, and the alpha is more than or equal to 15 degrees and less than or equal to 60 degrees. Under the condition of not increasing the whole volume of the sharpening machine, the transmission structure is optimized, the circle centers of the driving gear, the intermediate gear and the load gear are distributed in a triangular mode, the structure is compact, the reduction ratio of the transmission structure can be effectively improved, the output torque of the load gear is increased, and the sharpening machine is enabled to be even in sharpening and good in sharpening effect.
Description
Technical Field
The utility model belongs to the technical field of electric tool, concretely relates to transmission structure of electrode tip sharpening machine.
Background
In industrial production, a welding machine is widely used for performing a welding operation on a press-formed metal. The electrode tip of the welding machine has a prominent influence on the welding quality, and the electrode tip is easy to deform and wear after being used for many times, so that the electrode tip needs to be repaired or replaced. An electrode tip sharpening machine is a machine for precisely sharpening an electrode tip as the name implies. The electrode tip sharpening machine has become an important ring in the technical field of modern production because of accurate and rapid grinding, small structure and economical price.
The electrode tip sharpening machine generally comprises a motor, wherein the motor transmits torque to a sharpening cutter assembly through a transmission structure, and the electrode tip is finely ground by the sharpening cutter assembly. The transmission structure of the traditional electrode tip grinding machine mainly comprises a driving gear, an intermediate gear and a load gear, and is limited by space size and manufacturing cost, the circle centers of the driving gear, the intermediate gear and the load gear are usually arranged on the same straight line, the whole structure of the transmission structure is small, but the reduction ratio is smaller, the output torque of the load gear is insufficient, the defects of poor grinding effect, uneven grinding and the like of the electrode tip grinding machine are easily caused, and the increasingly improved use requirement of the grinding machine in modern production cannot be met.
Therefore, in order to solve the problems in the prior art, a transmission structure with a compact structure and sufficient torque is urgently needed to meet the development requirement of the electrode tip sharpening machine.
Disclosure of Invention
To the problem among the correlation technique, the utility model provides a transmission structure of electrode tip sharpening machine to overcome the above-mentioned technical problem that current correlation technique exists.
The technical scheme of the utility model is realized like this: a transmission structure of an electrode tip sharpening machine is arranged in a base of the sharpening machine, a motor and a sharpening cutter assembly are arranged on the base, the transmission structure is used for transmitting the torque of the motor and driving the sharpening cutter assembly to rotate,
the transmission structure comprises a driving gear, an intermediate gear and a load gear, the driving gear is in driving connection with an output shaft of the motor, the load gear is fixedly connected with the sharpening cutter assembly, the number of teeth of the driving gear is smaller than that of teeth of the load gear, and the intermediate gear is positioned between the driving gear and the load gear and is respectively in meshing connection with the driving gear and the load gear;
the circle centers of the driving gear, the intermediate gear and the load gear are distributed on the same plane in a triangular shape, and a connecting line of the circle center of the driving gear and the circle center of the intermediate gear intersects with a connecting line of the circle center of the driving gear and the circle center of the load gear to form an included angle alpha, wherein alpha is more than or equal to 15 degrees and less than or equal to 60 degrees.
The utility model discloses in, under the whole volume condition of not augmenting the sharpening machine, optimize the transmission structure, be triangular distribution with the centre of a circle of driving gear, intermediate gear and load gear, compact structure can effectively improve the reduction ratio of transmission structure, increases the output torque of load gear for the sharpening of sharpening machine is even, the sharpening is effectual.
As a further improvement of the above scheme, the size range of the center distance between the driving gear and the load gear is 60-120 mm;
in order to avoid the increase of the size of the sharpening machine and the increase of the manufacturing cost, the transmission structure is further optimized, the circle centers of all the gears are distributed in a triangular mode, the center distance between the driving gear and the load gear is kept within a small distance, the structure is compact, and the application range is wide.
As a further improvement of the scheme, the gear ratio of the driving gear to the load gear is 1: 2-5;
in order to improve the output torque of the sharpening machine, a proper gear ratio is further configured for the driving gear and the load gear, so that the sharpening of the sharpening machine is uniform and reliable.
As a further improvement of the scheme, the number of teeth of the driving gear is 17-25, and the number of teeth of the load gear is 42-75.
As a further improvement of the above solution, the motor is fixedly mounted on the base, the base has a hollow inner cavity for accommodating the driving gear, the intermediate gear and the load gear, and the output shaft of the motor extends along the axial direction thereof and enters the inner cavity to be in driving connection with the driving gear;
as a further improvement of the above scheme, the base comprises an upper cover and a base, the upper cover is provided with a plurality of positioning pins, the base is provided with a corresponding number of positioning holes, and the upper cover is matched with the positioning holes of the base one by one through the positioning pins and is folded to surround and form the inner cavity;
it should be noted that, in order to facilitate the installation of the transmission structure in the sharpening machine base, the base is further divided into two parts, and the base is matched with the positioning holes through the positioning pins, so that the situations of inversion, misassembly and the like can be effectively avoided, and the installation efficiency and the finished product yield of the transmission structure are improved.
As the further improvement of above scheme, the last rigid coupling of intermediate gear has a pivot, the pivot extends along intermediate gear's axis direction, still be equipped with a plurality of bearing in the pivot, intermediate gear reaches through the pivot a plurality of bearing with the base forms the rotation and is connected.
As a further improvement of the above solution, the load gear can rotate around its central axis, the load gear has a slot formed through it along its central axis, and the sharpening blade assembly is mounted and fixed in the slot.
As a further improvement of the above solution, the gear module numbers of the driving gear, the intermediate gear and the load gear are all 1, or 1.25, or 1.5.
As a further improvement of the scheme, the driving gear, the intermediate gear and the load gear are straight toothed cylindrical gears, helical toothed cylindrical gears or herringbone toothed cylindrical gears.
The utility model has the advantages that:
(1) under the condition of keeping the center distance between the driving gear and the load gear unchanged, the arrangement of the circle centers of the intermediate gear is optimized, and the traditional linear transmission structure is improved into a triangular transmission structure, namely the circle centers of the driving gear, the intermediate gear and the load gear are distributed in a triangular manner, so that the structure is compact, stable and reliable;
(2) under the condition of not increasing the whole volume of the sharpening machine, the reduction ratio of a transmission structure is effectively improved, the output torque of a load gear is increased, and the sharpening machine is uniform in sharpening and good in sharpening effect;
(3) the grinding effect of the grinding machine is improved by increasing the reduction ratio and adjusting the arrangement of the circle center of the intermediate gear without additional installation and modification of the grinding machine, the manufacturing cost is low, and the application prospect is quite remarkable.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a cross-sectional view of the present invention;
FIG. 3 is a connection diagram of the driving gear, the intermediate gear and the load gear of the present invention;
reference numerals:
1. a transmission structure; 11. a driving gear; 12. an intermediate gear; 12a, a rotating shaft; 12b, a bearing; 13. a load gear; 13a, a slot;
2. a base; 21. an upper cover; 22. a base; d1, positioning pins; d2, positioning holes;
3. a motor;
4. and (4) grinding a cutter assembly.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Example 1
As shown in fig. 1-3, a transmission structure 1 of an electrode tip sharpening machine is installed in a base 2 of the sharpening machine, a motor 3 and a sharpening cutter assembly 4 are arranged on the base 2, the transmission structure 1 is used for transmitting the torque of the motor 3 and driving the sharpening cutter assembly 4 to rotate,
the transmission structure 1 comprises a driving gear 11, an intermediate gear 12 and a load gear 13, the driving gear 11 is in driving connection with an output shaft of the motor 3, the load gear 13 is fixedly connected with the sharpening cutter assembly 4, in the embodiment, the sharpening cutter assembly 4 comprises a cutter holder, a cutter blade is arranged on the cutter holder, and the cutter holder is fixedly connected with the load gear 13 through a plurality of screws.
The gear module of the driving gear 11, the intermediate gear 12 and the load gear 13 is 1, or 1.25, or 1.5; in the present embodiment, in consideration of the volume size and the manufacturing cost of the transmission structure 1 of the tip dresser, a preferred value of the gear module is 1.25 in order to provide an appropriate gear thickness and pitch circle, and the drive gear 11, the intermediate gear 12, and the load gear 13 are all spur gears.
The number of teeth of the driving gear 11 is less than that of the load gear 13, and the intermediate gear 12 is positioned between the driving gear 11 and the load gear 13 and is respectively in meshed connection with the driving gear 11 and the load gear 13; in the embodiment, the gear ratio of the driving gear 11 to the load gear 13 is 1: 2-5; in order to improve the output torque of the sharpening machine, a proper gear ratio is further configured for the driving gear 11 and the load gear 13, so that the sharpening of the sharpening machine is uniform and reliable.
More specifically, the number of teeth of the driving gear 11 is 17 to 25, the number of teeth of the load gear 13 is 42 to 75, in this embodiment, it is preferable that the number of teeth of the driving gear 11 is 21, the number of teeth of the load gear 13 is 60, and the number of teeth of the intermediate gear 12 is 23.
The circle centers of the driving gear 11, the intermediate gear 12 and the load gear 13 are distributed on the same plane in a triangular shape, the connecting line of the circle center of the driving gear 11 and the circle center of the intermediate gear 12 intersects with the connecting line of the circle center of the driving gear 11 and the circle center of the load gear 13 to form an included angle alpha, and the alpha is more than or equal to 15 degrees and less than or equal to 60 degrees; a suitable included angle α is configured, and the centers of circles of the driving gear 11, the intermediate gear 12 and the load gear 13 are distributed in a triangular manner, so that the transmission structure 1 is compact in structure in the sharpening machine base 2, and specifically, the included angle α can be selected to be an optimal value of 25 °, 39 °, 45 ° or 59 °.
In this embodiment, the center distance between the driving gear 11 and the load gear 13 is in a range of 60 to 120mm, and more specifically, the center distance between the driving gear 11 and the load gear 13 is preferably 72.5 mm. In order to avoid the increase of the size of the sharpening machine and the increase of the manufacturing cost, the transmission structure 1 is further optimized, and the circle centers of all the gears are distributed in a triangular mode, so that the center distance between the driving gear 11 and the load gear 13 is kept within a small distance, the structure is compact, and the application range is wide.
In this embodiment, the motor 3 is fixedly mounted on the base 2, and specifically, the motor 3 is fixedly mounted on the base 2 through a plurality of bolts distributed along a circumferential direction thereof;
the base 2 is provided with a hollow inner cavity for accommodating a driving gear 11, an intermediate gear 12 and a load gear 13, and an output shaft of the motor 3 extends along the axial direction of the output shaft and enters the inner cavity to be in driving connection with the driving gear 11;
in this embodiment, the base 2 includes an upper cover 21 and a base 22, the upper cover 21 is provided with a plurality of positioning pins D1, the base 22 is provided with a corresponding number of positioning holes D2, and the upper cover 21 is matched with the positioning holes D2 of the base 22 one by one through the positioning pins D1 to form the inner cavity in an enclosing manner; it should be noted that, in order to facilitate the installation of the transmission structure 1 in the sharpening machine base 2, further, the base 2 is divided into two parts, and the positioning pin D1 and the positioning hole D2 are matched with each other, so that the situations of inversion, misassembly and the like can be effectively avoided, and the installation efficiency and the finished product yield of the transmission structure 1 are improved.
In this embodiment, a rotating shaft 12a is fixedly connected to the intermediate gear 12, the rotating shaft 12a extends along the central axis direction of the intermediate gear 12, a plurality of bearings 12b are further arranged on the rotating shaft 12a, and the intermediate gear 12 is rotatably connected to the base 2 through the rotating shaft 12a and the bearings 12 b.
In the present embodiment, the load gear 13 can rotate around its central axis, the load gear 13 has a slot 13a formed therethrough along its central axis, and the sharpening blade assembly 4 is mounted and fixed in the slot 13 a.
Through the above technical scheme of the utility model, in concrete application: the centers of circles of a driving gear 11, an intermediate gear 12 and a load gear 13 of the transmission structure 1 are distributed in a triangular shape, and a connecting line of the center of circle of the driving gear 11 and the center of circle of the intermediate gear 12 intersects with a connecting line of the center of circle of the driving gear 11 and the center of circle of the load gear 13 to form an included angle;
when the sharpening machine is started, the output shaft of the motor 3 extends into the inner cavity of the base 2, the output shaft is in driving connection with the driving gear 11, the driving gear 11 is in transmission connection with the load gear 13 through the intermediate gear 12, the gears are meshed with each other in pairs, the reduction ratio of the transmission structure 1 can be improved by increasing the reduction ratio and adjusting the arrangement of the circle center of the intermediate gear 12, and therefore the sharpening machine is even in sharpening and good in sharpening effect.
Example 2
The present invention has one of the embodiments, the main technical solution of the present embodiment is the same as that of embodiment 1, and the characteristics that are not explained in the present embodiment adopt the explanation of embodiment 1, which is not described herein again. The present example differs from example 1 in that:
the driving gear 11, the intermediate gear 12 and the load gear 13 are helical gears.
Example 3
The present invention has one of the embodiments, the main technical solution of the present embodiment is the same as that of embodiment 1, and the characteristics that are not explained in the present embodiment adopt the explanation of embodiment 1, which is not described herein again. This example differs from example 1 in that:
the driving gear 11, the intermediate gear 12 and the load gear 13 are herringbone gear cylindrical gears.
Variations and modifications to the above-described embodiments may occur to those skilled in the art, in light of the above teachings and teachings. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should fall within the protection scope of the claims of the present invention. Furthermore, although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.
Claims (10)
1. The utility model provides a transmission structure of electrode tip sharpening machine, installs in the base of sharpening machine, be equipped with motor and sharpening cutter unit spare on the base, transmission structure is used for transmitting the moment of torsion of motor to order about sharpening cutter unit spare rotary motion, its characterized in that:
the transmission structure comprises a driving gear, an intermediate gear and a load gear, the driving gear is in driving connection with an output shaft of the motor, the load gear is fixedly connected with the sharpening cutter assembly, the number of teeth of the driving gear is less than that of teeth of the load gear, and the intermediate gear is positioned between the driving gear and the load gear and is respectively in meshing connection with the driving gear and the load gear;
the centers of circles of the driving gear, the intermediate gear and the load gear are distributed on the same plane in a triangular mode, a connecting line of the center of circle of the driving gear and the center of circle of the intermediate gear intersects with a connecting line of the center of circle of the driving gear and the center of circle of the load gear to form an included angle alpha, and alpha is larger than or equal to 15 degrees and smaller than or equal to 60 degrees.
2. The transmission structure as claimed in claim 1, wherein the center-to-center distance between the driving gear and the load gear is 60-120 mm.
3. The transmission structure according to claim 1, wherein the gear ratio of the driving gear to the load gear is 1: 2-5.
4. The transmission structure as claimed in claim 3, wherein the number of teeth of the driving gear is 17 to 25, and the number of teeth of the load gear is 42 to 75.
5. The transmission structure according to claim 1, wherein the motor is fixedly mounted on the base, the base has a hollow cavity for accommodating the driving gear, the intermediate gear and the load gear, and the output shaft of the motor extends along the axial direction thereof and enters the cavity to be drivingly connected to the driving gear.
6. The transmission structure according to claim 5, wherein the base comprises an upper cover and a base, the upper cover is provided with a plurality of positioning pins, the base is provided with a corresponding number of positioning holes, and the upper cover is matched with the positioning holes of the base one by one through the positioning pins to form the inner cavity in a closed surrounding manner.
7. The transmission structure according to claim 1, wherein a rotating shaft is fixedly connected to the intermediate gear, the rotating shaft extends along a central axis of the intermediate gear, a plurality of bearings are further disposed on the rotating shaft, and the intermediate gear is rotatably connected to the base through the rotating shaft and the plurality of bearings.
8. The transmission structure of claim 1, wherein the load gear is rotatable about a central axis thereof, a slot is formed through the load gear along the central axis thereof, and the sharpening blade assembly is mounted and fixed in the slot.
9. The transmission structure according to claim 1, wherein the gear module of the driving gear, the intermediate gear and the load gear is 1, or 1.25, or 1.5.
10. The transmission structure according to claim 1, wherein the driving gear, the intermediate gear and the load gear are spur gears, helical gears or herringbone gears.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220934046.0U CN217475589U (en) | 2022-04-20 | 2022-04-20 | Transmission structure of electrode tip sharpening machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220934046.0U CN217475589U (en) | 2022-04-20 | 2022-04-20 | Transmission structure of electrode tip sharpening machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217475589U true CN217475589U (en) | 2022-09-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220934046.0U Active CN217475589U (en) | 2022-04-20 | 2022-04-20 | Transmission structure of electrode tip sharpening machine |
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| Country | Link |
|---|---|
| CN (1) | CN217475589U (en) |
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- 2022-04-20 CN CN202220934046.0U patent/CN217475589U/en active Active
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