CN206870754U - Rear axle of electric automobile assembly - Google Patents
Rear axle of electric automobile assembly Download PDFInfo
- Publication number
- CN206870754U CN206870754U CN201720590169.6U CN201720590169U CN206870754U CN 206870754 U CN206870754 U CN 206870754U CN 201720590169 U CN201720590169 U CN 201720590169U CN 206870754 U CN206870754 U CN 206870754U
- Authority
- CN
- China
- Prior art keywords
- brake drum
- semiaxis
- spindle nose
- electric automobile
- rear axle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model discloses a kind of rear axle of electric automobile assembly, including brake drum and semiaxis, the spindle nose of the semiaxis is provided with cotter-pin hold, the middle part of the brake drum is provided with through hole, the spindle nose passes through the through hole of the brake drum, and be fastenedly connected by slotted nut and the brake drum, end of the semiaxis at the spindle nose is connected with the brake drum by flat key and keyway arrangements；The brake drum is provided with rim bolt.Rear axle of electric automobile assembly of the present utility model, axiality is high, does not allow to be also easy to produce polarization.
Description
Technical field
Electric vehicle engineering field is the utility model is related to, specifically, is related to a kind of rear axle of electric automobile assembly.
Background technology
As shown in Figure 1, Figure 2 and shown in Fig. 3, in traditional electric automobile field, the end of semiaxis 3 of back axle needs forging method
Orchid 31, rim bolt 2 is housed on flange 31, rim bolt 2 is connected through brake drum 1 with wheel, and the semiaxis 3 of this form needs
Disposable forging forming, greatly, intractability is also big for the change of the external diameter of end flange 31 when forging process are heat-treated by intermediate frequency, system
It is very high to make cost, and ensuring coaxiality is poor, wheel is produced polarization；In addition, for low-speed electronic automobile, low speed
The bearing capacity of electric automobile is smaller, using forging and stamping semiaxis 3, is unfavorable for the control of cost.
Utility model content
Technical problem to be solved in the utility model is：A kind of axiality height is provided, does not allow to be also easy to produce the electronic of polarization
Vehicle rear axle assembly.
In order to solve the above technical problems, the technical solution of the utility model is：
Rear axle of electric automobile assembly, including brake drum and semiaxis, the spindle nose of the semiaxis are provided with cotter-pin hold, the system
The middle part for moving drum is provided with through hole, and the spindle nose passes through the through hole of the brake drum, and tight by slotted nut and the brake drum
It is solidly connected, end of the semiaxis at the spindle nose is connected with the brake drum by flat key and keyway arrangements；
The brake drum is provided with rim bolt.
Preferably, end of the semiaxis at the spindle nose is provided with flat key, and the through-hole wall is provided with and institute
State the keyway that flat key is adapted.
Preferably, the diameter of the spindle nose is less than the diameter of the semiaxis other parts.
After employing above-mentioned technical proposal, the beneficial effects of the utility model are：
Rear axle of electric automobile assembly of the present utility model, half shaft end are directly processed into spindle nose, and whole semiaxis is approximately one
Root optical axis, only spindle nose end are machined out processing, and the center of brake drum is provided with through hole, coordinate with spindle nose end, and logical
The power crossed between flat key transmission semiaxis and brake drum, semiaxis are secured together to by slotted nut with brake drum, pressed on brake drum
Rim bolt is filled, directly can be connected with wheel, such a structure, is easy to keep the axiality of semiaxis and brake drum and wheel, makes
Wheel is not allowed to be also easy to produce polarization.In addition, in rear axle of electric automobile assembly of the present utility model, half shaft end does not have to forging and stamping flange,
Simple in construction, cost is low, applies on low-speed electronic automobile, cost advantage is obvious.
Brief description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and examples：
Fig. 1 is the dimensional structure diagram of existing rear axle of electric automobile assembly；
Fig. 2 is the part mplifying structure schematic diagram of one end of existing rear axle of electric automobile assembly；
Fig. 3 is the longitudinal sectional view of existing rear axle of electric automobile assembly；
Fig. 4 is the structural representation of rear axle of electric automobile assembly of the present utility model；
Fig. 5 is Fig. 4 part mplifying structure schematic diagram；
Fig. 6 is the structural representation of the semiaxis in Fig. 4；
In figure：1- brake drums；11- keyways；12- through holes；2- rim bolts；3- semiaxis；31- flanges；32- spindle noses；33- is put down
Key；34- cotter-pin holds；4- opening nuts.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only explaining
The utility model, it is not used to limit the utility model.
Reference picture 4, Fig. 5 and Fig. 6, rear axle of electric automobile assembly of the present utility model, including brake drum 1 and semiaxis 3, semiaxis
3 spindle nose 32 is provided with cotter-pin hold 34, and the middle part of brake drum 1 is provided with through hole 12, and spindle nose 32 passes through the through hole 12 of brake drum 1,
And be fastenedly connected by slotted nut 4 and brake drum 1, end of the semiaxis 3 at spindle nose 32 and brake drum 1 by flat key 33 and
The structure driven of keyway 11 connects；Brake drum 1 is provided with rim bolt 2.
End of the semiaxis 3 at spindle nose 32 is provided with flat key 33, and the inwall of through hole 12 is provided with what is be adapted with flat key 33
Keyway 11.
The diameter of spindle nose 32 is less than the diameter of the other parts of semiaxis 3.
Spindle nose 32, the outer peripheral face of spindle nose 32 are directly processed into rear axle of electric automobile assembly of the present utility model, the end of semiaxis 3
On be provided with external screw thread, whole semiaxis 3 is approximately an optical axis, and the only end of spindle nose 32 is machined out processing, brake drum 1
Center be provided with through hole 12, coordinate with the end of spindle nose 32, and pass through flat key 33 and transmit power between semiaxis 3 and brake drum 1, semiaxis
3 are secured together to brake drum 1 by slotted nut 4, and rim bolt 2 is pressed on brake drum 1, directly can be connected with wheel,
Such a structure, it is easy to keep the axiality of semiaxis 3 and brake drum 1 and wheel, makes wheel not allow to be also easy to produce polarization.In addition, this reality
With in new rear axle of electric automobile assembly, the end of semiaxis 3 does not have to forging and stamping flange, and simple in construction, cost is low, applies in low speed electricity
On electrical automobile, cost advantage is obvious.
Rear axle of electric automobile assembly structure also including motor etc., is prior art, will not be repeated here.
Citing described above for the utility model preferred forms, wherein the part do not addressed in detail is this area
The common knowledge of those of ordinary skill.The scope of protection of the utility model is defined by the content of claim, any to be based on this reality
The equivalent transformation carried out with new technical inspiration, also within the scope of protection of the utility model.
Claims (3)
1. rear axle of electric automobile assembly, including brake drum and semiaxis, it is characterised in that：The spindle nose of the semiaxis is provided with split pin
Hole, the middle part of the brake drum are provided with through hole, and the spindle nose passes through the through hole of the brake drum, and by slotted nut with it is described
Brake drum is fastenedly connected, and end of the semiaxis at the spindle nose is driven with the brake drum by flat key and keyway arrangements
Connection；
The brake drum is provided with rim bolt.
2. rear axle of electric automobile assembly according to claim 1, it is characterised in that：The semiaxis is at the spindle nose
End is provided with flat key, and the through-hole wall is provided with the keyway being adapted with the flat key.
3. rear axle of electric automobile assembly according to claim 1 or 2, it is characterised in that：The diameter of the spindle nose is less than institute
State the diameter of semiaxis other parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720590169.6U CN206870754U (en) | 2017-05-24 | 2017-05-24 | Rear axle of electric automobile assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720590169.6U CN206870754U (en) | 2017-05-24 | 2017-05-24 | Rear axle of electric automobile assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206870754U true CN206870754U (en) | 2018-01-12 |
Family
ID=61336705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720590169.6U Expired - Fee Related CN206870754U (en) | 2017-05-24 | 2017-05-24 | Rear axle of electric automobile assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206870754U (en) |
-
2017
- 2017-05-24 CN CN201720590169.6U patent/CN206870754U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180112 Termination date: 20200524 |