CN215883961U - Crank of electric vehicle - Google Patents
Crank of electric vehicle Download PDFInfo
- Publication number
- CN215883961U CN215883961U CN202122325359.4U CN202122325359U CN215883961U CN 215883961 U CN215883961 U CN 215883961U CN 202122325359 U CN202122325359 U CN 202122325359U CN 215883961 U CN215883961 U CN 215883961U
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- crank
- head
- connecting rod
- electric vehicle
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Abstract
The utility model discloses an electric vehicle crank, which comprises a crank body, wherein the crank body comprises an installing head, a connecting rod and a connecting head, the bottom of the installing head is provided with the connecting rod, one end of the connecting rod is provided with the connecting head, the surface of the connecting head is provided with a threaded hole, the top end of the connecting rod is provided with a groove, one side of the bottom end of the inner wall of the groove is provided with a length mark, the other side of the bottom end of the inner wall of the groove is provided with a left mark and a right mark, the top end of the installing head is provided with a circular groove, and the bottom end of the inner wall of the circular groove is provided with a jack.
Description
Technical Field
The utility model relates to the field of cold forging, in particular to a crank of an electric vehicle.
Background
The crank is a tool for connecting the middle shaft, the chain wheel and the pedal and can rotate around the frame for 360 degrees.
The crank must be used to the new national standard electric motor car, but current crank manufacturing procedure is complicated, and the product surface is coarse need polish, consumes energy and polluted environment, and the highest 30mm that can only be accomplished to market cold extrusion crank's head height, is difficult to satisfy the demand of electric motor car style, for this reason we provide an electric motor car crank.
Disclosure of Invention
The utility model aims to provide an electric vehicle crank, which solves the problems that the existing crank proposed in the background technology has complex manufacturing process, the surface of a product is rough and needs to be polished, the energy consumption is high, the environment is polluted, and the highest head height of a market cold extrusion crank can only reach 30 mm.
In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides an electric motor car crank, includes the crank body, the crank body is including installation head, connecting rod and connector, the bottom of installation head is equipped with the connecting rod, the one end of connecting rod is equipped with the connector, the screw hole has been seted up on the surface of connector, the top of connecting rod is seted up flutedly, the length sign has been seted up to one side of recess inner wall bottom, the sign about the opposite side of recess inner wall bottom has been seted up, the circular recess has been seted up on the top of installation head, the jack has been seted up to the bottom of circular recess inner wall.
As a preferable technical scheme of the utility model, the jack is square.
As a preferable technical scheme of the utility model, the height of the mounting head is 45 mm.
As a preferable technical scheme of the utility model, the length of the crank body is 102 mm.
As a preferred technical scheme of the utility model, the mounting head, the connecting rod and the connecting head are of an integrally formed structure.
As a preferable technical scheme of the utility model, the crank body is manufactured by adopting a cold forging process.
As a preferable aspect of the present invention, the mounting head has a truncated cone shape.
Compared with the prior art, the utility model has the beneficial effects that:
1. the crank body manufactured by the method has smooth surface, does not need polishing and grinding, simplifies the manufacturing process of the product, saves more energy, reduces emission and consumption, and reduces the cost;
2. can improve into 45mm through the highest 30mm with the installation head originally, convenient to use more to through be equipped with length sign and control the sign in the connecting rod upper groove, make people can know the length of crank body fast, and distinguish about.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a top view of the present invention;
fig. 3 is a perspective view of a mounting head of the present invention.
In the figure: 1. a crank body; 101. a mounting head; 102. a connecting rod; 103. a connector; 2. a threaded hole; 3. a groove; 4. length identification; 5. marking on the left and right; 6. a circular groove; 7. and (4) inserting the jack.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides an electric vehicle crank, which comprises a crank body 1, wherein the crank body 1 comprises an installation head 101, a connection rod 102 and a connection head 103, the connection rod 102 is disposed at the bottom of the installation head 101, the connection head 103 is disposed at one end of the connection rod 102, a threaded hole 2 is disposed on the surface of the connection head 103, used for installing pedals, the top end of the connecting rod 102 is provided with a groove 3, which can reduce the cost, one side of the bottom end of the inner wall of the groove 3 is provided with a length mark 4, make people can know the length of crank body 1 rapidly, sign 5 about the opposite side of recess 3 inner wall bottom has been seted up, makes people can distinguish about the crank when the installation, and circular slot 6 has been seted up on the top of installation head 101, can play the accommodation effect during the installation, and jack 7 has been seted up to the bottom of circular slot 6 inner wall, can install crank body 1 in axis department through jack 7.
Preferably, the jack 7 is square, so that the jack is more stable after being inserted;
preferably, the height of the mounting head 101 is 45mm, which can be much higher than the 30mm of a normal crank head;
preferably, the crank body 1 has a length of 102mm, so that the crank is convenient to use;
preferably, the mounting head 101, the connecting rod 102 and the connecting head 103 are of an integrally formed structure, and the crank is high in strength and not easy to break due to integral forming;
preferably, the crank body 1 is manufactured by adopting a cold forging process, the surface quality of a cold forging part is good, the dimensional precision is high, and the strength of the part can be improved;
preferably, the mounting head 101 is in a truncated cone shape, and is more stable in placement and convenient to use.
When the crank is used in detail, the crank of the electric vehicle is manufactured, firstly, a die of the crank is subjected to high-hardness surface treatment, then, a ball head of the crank to be manufactured is made into a required shape through cold upsetting, the ball head is bent into a required bending degree, then, a blank shape of the crank is finished through three times of cold extrusion, machining is carried out according to national standards, and finally, the crank is packaged after surface treatment, so that the crank body 1 manufactured is smooth in surface, polishing and grinding are not needed, the manufacturing process of the crank is simplified, therefore, energy conservation, emission reduction, consumption reduction and cost reduction are better realized, the mounting head 101 is improved to be 45mm from the original highest 30mm through updating of the die and improvement of the manufacturing process, the crank is more convenient to use, when the crank body 1 is used, the jack 7 on the mounting head 101 is mounted with a chain wheel and is compressed through a fastening bolt, install threaded hole 2 on connector 103 and step on and can use to be equipped with length sign 4 and control sign 5 in connecting rod 102 upper groove 3, make people know the length of crank body 1 fast, and distinguish about.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the utility model can be made, and equivalents and modifications of some features of the utility model can be made without departing from the spirit and scope of the utility model.
Claims (7)
1. The utility model provides an electric motor car crank, includes crank body (1), its characterized in that: crank body (1) is including installation head (101), connecting rod (102) and connector (103), the bottom of installation head (101) is equipped with connecting rod (102), the one end of connecting rod (102) is equipped with connector (103), threaded hole (2) are seted up on the surface of connector (103), recess (3) are seted up on the top of connecting rod (102), length sign (4) have been seted up to one side of recess (3) inner wall bottom, sign (5) about the opposite side of recess (3) inner wall bottom has been seted up, circular groove (6) have been seted up on the top of installation head (101), jack (7) have been seted up to the bottom of circular groove (6) inner wall.
2. The electric vehicle crank of claim 1, wherein: the jack (7) is square.
3. The electric vehicle crank of claim 1, wherein: the height of the mounting head (101) is 45 mm.
4. The electric vehicle crank of claim 1, wherein: the length of the crank body (1) is 102 mm.
5. The electric vehicle crank of claim 1, wherein: the mounting head (101), the connecting rod (102) and the connecting head (103) are of an integrally formed structure.
6. The electric vehicle crank of claim 1, wherein: the crank body (1) is manufactured by adopting a cold forging process.
7. The electric vehicle crank of claim 1, wherein: the mounting head (101) is in a truncated cone shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122325359.4U CN215883961U (en) | 2021-09-26 | 2021-09-26 | Crank of electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122325359.4U CN215883961U (en) | 2021-09-26 | 2021-09-26 | Crank of electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215883961U true CN215883961U (en) | 2022-02-22 |
Family
ID=80347829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122325359.4U Active CN215883961U (en) | 2021-09-26 | 2021-09-26 | Crank of electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215883961U (en) |
-
2021
- 2021-09-26 CN CN202122325359.4U patent/CN215883961U/en active Active
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