CN215487515U - Powder metallurgy gear with lock structure - Google Patents
Powder metallurgy gear with lock structure Download PDFInfo
- Publication number
- CN215487515U CN215487515U CN202121280822.1U CN202121280822U CN215487515U CN 215487515 U CN215487515 U CN 215487515U CN 202121280822 U CN202121280822 U CN 202121280822U CN 215487515 U CN215487515 U CN 215487515U
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- gear
- key
- powder metallurgy
- keyway
- lock structure
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Abstract
The utility model relates to a powder metallurgy gear with a lock structure, which consists of a gear, a shaft, a key and a fixing ring, wherein key grooves arranged on the gear and the shaft can facilitate the installation of the key, and a thread B on the fixing ring can be conveniently matched with a thread A on the key to fix the gear by the fixing ring, so that the positions of the gear and the key are fixed, and the gear is prevented from moving in the working process.
Description
Technical Field
The utility model relates to the field of powder metallurgy gears, in particular to a powder metallurgy gear with a lock structure.
Background
The manufacture of gear by powder metallurgy technique requires multiple processes of milling, forming, sintering, post-treatment, etc., wherein the forming process is to put powder material into a die and press-form under a certain pressure, and the gear refers to a mechanical element with gear on the rim for continuously engaging and transmitting motion and power. The gear manufactured by the powder metallurgy process can exactly reduce the production cost and ensure the consistency of the form and position and the dimensional tolerance of the gear. Compared with the gear manufactured by machining, stamping, extruding, precision casting and the like by using die casting, grey iron castings, forged and rolled materials, forgings and the like, the powder metallurgy gear has a series of advantages, but the existing powder metallurgy gear is installed in a machine, and the position of the gear is moved to cause damage to the machine due to the fact that keys are not installed in place during use.
SUMMERY OF THE UTILITY MODEL
In order to solve the defect that the position of the gear is moved due to the fact that keys are not installed in place in the using process of the existing powder metallurgy gear, the utility model provides a powder metallurgy gear with a lock structure.
The technical scheme adopted by the utility model for solving the technical problems is as follows: the utility model provides a powder metallurgy gear of area keying structure, its includes gear and key, be equipped with the centre bore on the gear, be equipped with two at least keyway A around the centre bore on the gear, keyway A's upper end is circular-arcly, the key is the cuboid, keyway A on key and the gear cooperatees with epaxial keyway B, the key is equipped with screw thread A on the both sides of gear, the both sides of gear are equipped with solid fixed ring, gu fixed ring's main part is the ring form, gu fixed ring's inner wall is equipped with screw thread B with screw thread A complex.
As can be seen from the above, the present invention has the following advantages compared with the prior art:
according to the powder metallurgy gear with the lock structure, the key groove formed in the gear and the shaft can enable the key to be conveniently installed, the thread B on the fixing ring can be conveniently matched with the thread A on the key, so that the fixing ring can fix the gear, the gear and the key are fixed, and the gear is prevented from moving in the working process.
Drawings
Fig. 1 is a schematic view of the structure of the gear of the present invention.
FIG. 2 is a schematic view of the structure of the key of the present invention.
FIG. 3 is a schematic view of the retaining ring of the present invention.
Fig. 4 is an assembly schematic of the present invention.
In fig. 1, 2, 3 and 4, 1 is gear, 1-1 is key groove a, 2 is key, 2-1 is screw thread a, 3 is fixing ring, 3-1 is screw thread B, 4 is shaft, 4-1 is key groove B.
Detailed Description
As shown in figures 1, 2, 3 and 4, the powder metallurgy gear with the locking structure comprises a gear 1, a key groove A1-1, a key 2, a thread A2-1, a fixing ring 3, a thread B3-1, a shaft 4 and a key groove B4-1, wherein a central hole is formed in the gear 1, two key grooves A1-1 are formed in the periphery of the central hole in the gear 1, the upper end of the key groove A1-1 is in an arc shape, the key 2 is in a cuboid shape, the key 2 is matched with the key groove A1-1 in the gear 1 and the key groove B4-1 in the shaft 4, the thread A2-1 is arranged on two sides of the gear 1, the fixing ring 3 is arranged on two sides of the gear 1, the main body of the fixing ring 3 is in an annular shape, the inner wall of the fixing ring 3 is provided with the thread B3-1 matched with the thread A2-1, when the gear 1 is arranged on the shaft 4, the key 2 is arranged in the key groove A1-1 and the key groove B4-1, the fixed ring 3 is rotatably sleeved on the key 4 to clamp the gear 1.
Claims (1)
1. The utility model provides a powder metallurgy gear of area keying structure, its includes gear and key, its characterized in that: be equipped with the centre bore on the gear, be equipped with two at least keyway A around the centre bore on the gear, keyway A's upper end is circular-arcly, the key is the cuboid, keyway A on key and the gear cooperatees with epaxial keyway B, the key is equipped with screw thread A on the both sides of gear, the both sides of gear are equipped with solid fixed ring, gu fixed ring's main part is the ring form, gu fixed ring's inner wall is equipped with screw thread A complex screw thread B.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121280822.1U CN215487515U (en) | 2021-06-09 | 2021-06-09 | Powder metallurgy gear with lock structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121280822.1U CN215487515U (en) | 2021-06-09 | 2021-06-09 | Powder metallurgy gear with lock structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215487515U true CN215487515U (en) | 2022-01-11 |
Family
ID=79783968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121280822.1U Active CN215487515U (en) | 2021-06-09 | 2021-06-09 | Powder metallurgy gear with lock structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215487515U (en) |
-
2021
- 2021-06-09 CN CN202121280822.1U patent/CN215487515U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: No. 8, Lianzhong Road, Automobile Industrial Park, Yangzhou (Yizheng), Jiangsu Province, 225000 Patentee after: ASIMCO Alloy Materials (Yizheng) Co.,Ltd. Address before: 211499 No. 8, Lianzhong Road, Yangzhou (Yizheng) Automobile Industrial Park, Yangzhou City, Jiangsu Province Patentee before: ASM ALLOY MATERIALS (YIZHENG) CO.,LTD. |