CN213575423U - Split type duplicate gear - Google Patents
Split type duplicate gear Download PDFInfo
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- CN213575423U CN213575423U CN202022722590.2U CN202022722590U CN213575423U CN 213575423 U CN213575423 U CN 213575423U CN 202022722590 U CN202022722590 U CN 202022722590U CN 213575423 U CN213575423 U CN 213575423U
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Abstract
The utility model discloses a split type duplicate gear, which comprises a big gear and a small gear which can be separately arranged, wherein the big gear is fixedly provided with a big shaft hole and a big end tooth, two ends of the big gear are symmetrically provided with lightening grooves, and the bottom surfaces of the lightening grooves are symmetrically provided with screw through holes around the axis of the big gear; the whole pinion is cylindrical, the outer diameter of the pinion is matched with the weight reduction groove, a pinion hole is fixedly formed in the pinion, an annular groove is formed in the outer wall of the pinion, a gear portion and a connecting portion are respectively arranged on two sides of the annular groove, small-end teeth are fixedly arranged on the gear portion, and blind holes are formed in the connecting portion corresponding to the screw through holes. The dual gear of the utility model is designed into a split type, therefore, when the gear is damaged and needs to be replaced, the damaged part can be disassembled for replacement, which reduces the maintenance cost; because the number of teeth of the big end teeth and the number of teeth of the small end teeth are not relatively fixed, different gears can be combined to meet different output rotating speed requirements.
Description
Technical Field
The utility model relates to a gear drive technical field, specific saying so relates to a split type duplicate gear.
Background
As is well known, gear transmission is the most widely used transmission mode in mechanical transmission, and it can ensure stable transmission and has the advantages of high transmission efficiency and long service life. The double gear is that two gears are connected into a whole, and the double gear is called as a slip gear in a gear train and has the function of changing the rotating speed or speed of an output shaft. The number of the two gear teeth of the duplicate gear is fixed, the change of the rotating speed of the output shaft is fixed for the same duplicate gear, the gear is a vulnerable part and needs to be replaced frequently, the existing duplicate gears are mostly of an integrated structure, when one gear is damaged, the duplicate gear needs to be replaced integrally, and therefore the maintenance cost of the duplicate gear is increased. In addition, because the number of teeth of the big end teeth and the small end teeth of the duplicate gear is fixed, the output rotating speed and the input rotating speed are relatively fixed, and different output rotating speed requirements cannot be met.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention provides a split dual gear to effectively overcome the above-mentioned deficiencies of the prior art.
In order to realize the purpose, the utility model discloses a technical scheme is: a split type duplicate gear comprises a large gear and a small gear which can be separately arranged, wherein a large shaft hole and a large end tooth are fixedly arranged on the large gear, weight-reducing grooves are symmetrically arranged at two ends of the large gear, two or more than two screw through holes are symmetrically arranged on the bottom surface of each weight-reducing groove around the axis of the large gear, and the screw through holes are non-threaded holes; the whole pinion is cylindrical, the outer diameter of the pinion is matched with the weight reduction groove, a pinion hole is fixedly arranged on the pinion, an annular groove is arranged on the outer wall of the pinion, a gear part and a connecting part are respectively arranged on two sides of the annular groove, small-end teeth are fixedly arranged on the gear part, a blind hole is arranged on the connecting part corresponding to the through hole of the screw, and the blind hole is a hole with internal threads and is positioned on the end face of the pinion.
Preferably, the inner diameter of the small shaft hole is the same as the inner diameter of the large shaft hole.
Furthermore, a connecting counter bore is further arranged at an opening at one end of the screw through hole, and a nail head of the connecting screw can be accommodated in the connecting counter bore.
Adopt this technical scheme's utility model, its beneficial effect is: the dual gear of the utility model is designed into a split type, therefore, when the gear is damaged and needs to be replaced, the damaged part can be disassembled for replacement, which reduces the maintenance cost; because the number of teeth of the big end teeth and the number of teeth of the small end teeth are not relatively fixed, different gears can be combined to meet different output rotating speed requirements.
Drawings
Fig. 1 is a schematic structural view of the present invention;
reference numbers in the figures: 100. a bull gear; 110. a large shaft hole; 120. a big end tooth; 130. a weight-reducing groove; 140. a screw through hole; 141. connecting the counter bores; 200. a pinion gear; 210. a small shaft hole; 220. an annular groove; 230. a gear portion; 231. a small end tooth; 240. a connecting portion; 241. and (4) blind holes.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
Referring to fig. 1, the dual gear of the present invention includes a gearwheel 100 and a pinion 200 that can be separated, the gearwheel 100 is fixedly provided with a gearwheel hole 110 and a big end tooth 120, two ends of the gearwheel 100 are symmetrically provided with weight reduction grooves 130, four screw through holes 140 are symmetrically provided around the axis of the gearwheel 100 on the bottom surface of the weight reduction grooves 130, and the screw through holes 140 are non-threaded holes; the pinion 200 is in a cylindrical shape as a whole, the outer diameter of the pinion 200 is matched with the weight reduction groove 130, a pinion hole 210 is fixedly arranged on the pinion 200, an annular groove 220 is arranged on the outer wall of the pinion 200, a gear part 230 and a connecting part 240 are respectively arranged on two sides of the annular groove 220, a small end tooth 231 is fixedly arranged on the gear part 230, a blind hole 241 is arranged on the connecting part 240 corresponding to the screw through hole 140, and the blind hole 241 is a hole with internal threads and is positioned on the end face of the pinion 200.
The inside diameter of the small shaft hole 210 is the same as the inside diameter of the large shaft hole 110.
A connecting counterbore 141 is further arranged at an opening at one end of the screw through hole 140, and a nail head of a connecting screw can be accommodated in the connecting counterbore 141.
When the dual-gear transmission mechanism is used, firstly, the large gear 100 and the small gear 200 are fixedly connected through the screw through hole 140 and the blind hole 241 by screws, and then the dual-gear formed by the large gear 100 and the small gear 200 is installed on a gear shaft for use. Because the duplicate gear is split, when the large gear 100 or the small gear 200 is damaged and needs to be replaced, the damaged part can be detached and replaced to reduce the maintenance cost; because the number of teeth of the big end gear 120 and the number of teeth of the small end gear 231 are not relatively fixed, different gears can be combined to meet different output rotating speed requirements, and details thereof are not repeated herein.
The above description is only an embodiment of the present invention, and should not be taken as limiting the invention, and all modifications and equivalents that are made within the spirit and principles of the present invention should be included within the scope of the present invention.
Claims (3)
1. The utility model provides a split type duplicate gear, includes gear wheel and the pinion that can divide and put, its characterized in that: the large gear is fixedly provided with a large shaft hole and large end teeth, two ends of the large gear are symmetrically provided with weight reducing grooves, two or more than two screw through holes are symmetrically arranged on the bottom surface of each weight reducing groove around the axis of the large gear, and the screw through holes are non-threaded holes; the whole pinion is cylindrical, the outer diameter of the pinion is matched with the weight reduction groove, a pinion hole is fixedly arranged on the pinion, an annular groove is arranged on the outer wall of the pinion, a gear part and a connecting part are respectively arranged on two sides of the annular groove, small-end teeth are fixedly arranged on the gear part, a blind hole is arranged on the connecting part corresponding to the through hole of the screw, and the blind hole is a hole with internal threads and is positioned on the end face of the pinion.
2. The split double pinion according to claim 1, wherein: the inner diameter of the small shaft hole is the same as that of the large shaft hole.
3. The split double pinion according to claim 1, wherein: and a connecting counter bore is further arranged at an opening at one end of the screw through hole, and a nail head of the connecting screw can be accommodated in the connecting counter bore.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022722590.2U CN213575423U (en) | 2020-11-23 | 2020-11-23 | Split type duplicate gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022722590.2U CN213575423U (en) | 2020-11-23 | 2020-11-23 | Split type duplicate gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213575423U true CN213575423U (en) | 2021-06-29 |
Family
ID=76540010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022722590.2U Active CN213575423U (en) | 2020-11-23 | 2020-11-23 | Split type duplicate gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213575423U (en) |
-
2020
- 2020-11-23 CN CN202022722590.2U patent/CN213575423U/en active Active
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