CN206812718U - A kind of commercial car drives rear axle structure - Google Patents
A kind of commercial car drives rear axle structure Download PDFInfo
- Publication number
- CN206812718U CN206812718U CN201720577527.XU CN201720577527U CN206812718U CN 206812718 U CN206812718 U CN 206812718U CN 201720577527 U CN201720577527 U CN 201720577527U CN 206812718 U CN206812718 U CN 206812718U
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- CN
- China
- Prior art keywords
- central siphon
- hub
- axle housing
- hub spindle
- wheel hub
- 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.)
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Abstract
The utility model is that a kind of commercial car drives rear axle structure, including axle housing, main reducing gear and bevel differential assembly are provided with axle housing, the both ends of axle housing are connected with central siphon, being reconnected outside central siphon has hub spindle, wheel hub is equipped with by bearing on hub spindle, brake assembly and wheel hub brake drum assembly are additionally provided with the inside of wheel hub, brake chamber is additionally provided with central siphon under axle housing, brake chamber connects with wheel hub brake drum assembly, described axle housing, central siphon and hub spindle are to be welded as a whole after punch forming, the connecting portion of the hub spindle and central siphon is cased with transition sleeve, sealing ring is additionally provided with transition sleeve；For the connecting portion of its central siphon and hub spindle by arc transition, circular arc is R8 R10mm.The utility model design transition set includes the connecting portion of central siphon and hub spindle, overcome bearing and fill phenomenon not in place, it ensure that the bearing capacity of back axle, concurrently set arc transition, circular arc is R8 R10, the drawbacks of overcoming junction easy fracture, improve the security, reliability and structural stability of back axle.
Description
Technical field
Automobile rear axle structure is the utility model is related to, specially a kind of commercial car driving rear axle structure.
Background technology
In recent years, national strict implement environmental protection policy, and strictly administer the generation of automobile overrun and overload phenomenon so that tradition
The production of automobile using casting bridge shell be restricted, and orthodox car rear axle structure weight weight, oil consumption are big.Casting bridge can leave unavoidably
Sand is cast, sand can enter in lubricating oil when in use, cause the working parts premature abrasion such as speed reducer assembly, or even damage
Bad, this problem is not present in punching weldering bridge；Punching weldering axle assembly is more good-looking than casting axle assembly smooth in appearance, deep acceptor machine factory and user's
Welcome.
In order to change the structure of back axle using Integral welded after punching-welding axle housing, central siphon, hub spindle shaping, in back axle component
Hub spindle and central siphon connecting portion are that arc transition is connected, and the bearing of wheel hub is standard rolling bearing, the both ends of standard rolling bearing inner ring
External arc is R4-R5, when the connecting portion transition arc R of hub spindle and central siphon connecting portion is excessive, causes the bearing of wheel hub to fill
It is not in place；When hub spindle and central siphon connecting portion transition arc R are too small, stress caused by hub rotation makes junction again easily disconnected
Split, influence the bearing capacity and structural stability of automobile.
The content of the invention
The utility model carries to solve automobile to axle capacity, usage safety performance and light-weighted demand, spy
Go out a kind of commercial car driving rear axle structure.
The technical solution of the utility model is that a kind of commercial car drives rear axle structure, including axle housing, and being provided with master in axle housing subtracts
Fast device and bevel differential assembly, the both ends of axle housing are connected with central siphon, and being reconnected outside central siphon has hub spindle, passes through on hub spindle
Bearing is equipped with wheel hub, is additionally provided with brake assembly and wheel hub brake drum assembly on the inside of wheel hub, is additionally provided with the central siphon under axle housing
Brake chamber, brake chamber connect with wheel hub brake drum assembly, are welded as after described axle housing, central siphon and hub spindle punch forming
One, it is characterised in that：The connecting portion of the hub spindle and central siphon is cased with transition sleeve, and sealing ring is additionally provided with transition sleeve；Its
The connecting portion of central siphon and hub spindle passes through arc transition, circular arc R8-R10mm.
Further improve is：Central siphon is provided with spring block, and the top rake of spring block is set to lean forward 5.5 °.
Beneficial effect：
The utility model design transition set includes the connecting portion of central siphon and hub spindle, overcome bearing dress less than
The phenomenon of position, ensure that the bearing capacity of back axle, concurrently sets arc transition, circular arc R8-R10, it is easy to overcome junction
The drawbacks of fracture, improve the security, reliability and structural stability of back axle.
The top rake of punching-welding axle housing spring block uses 5.5o, makes vehicle matching more preferable, improves bearing capacity and comfortableness, hold
Power and comfortableness are carried better than casting bridge；Punching weldering driving back axle technology is rushed welding tractor bridge suitable for 7T, 8T, 9T series commercial car and adopted
With.
Using punching-welding axle housing, axle housing, central siphon wheel hub are Integral welded, it is easy to accomplish increase or shorten wheelspan and leaf spring
Away from meeting automobile to vehicle bridge wheelspan and leaf spring away from variable requirement, improve adaptability of the automobile to different width roads.
Brief description of the drawings
Fig. 1 is overall structure diagram of the present utility model.
Fig. 2 is the installation mplifying structure schematic diagram of transition sleeve in the utility model, hub spindle, central siphon and bearing.
1 is axle housing in figure, and 2 be transition sleeve, and 3 be brake assembly, and 4 be wheel hub brake drum assembly, and 5 be main reducing gear and cone
Gear differential mechanism assembly, 6 be brake chamber, and 7 be hub spindle, and 8 be central siphon, and 9 be spring block, and 10 be bearing, and 11 be wheel hub, and 12 are
Circular arc, 13 be sealing ring.
Embodiment
The utility model is as shown in Figure 1 and Figure 2.
A kind of commercial car drives rear axle structure, including axle housing 1, is provided with main reducing gear in axle housing 1 and bevel differential is total
Into 5, the both ends of axle housing 1 are connected with central siphon 8, and being reconnected outside central siphon 8 has hub spindle 7, and wheel is equipped with by bearing 10 on hub spindle 7
Hub 11, the inner side of wheel hub 11 are additionally provided with brake assembly 3 and wheel hub brake drum assembly 4, and braking is additionally provided with the central siphon 8 under axle housing 1
Air chamber 6, brake chamber 6 and wheel hub brake drum assembly 4 connect, and described axle housing 1, central siphon 8 and hub spindle 7 are whole after punch forming
Body formula is welded as a whole, and the connecting portion of the hub spindle 7 and central siphon 8 is cased with transition sleeve 2, and sealing ring is additionally provided with transition sleeve 2
13；For the connecting portion of its central siphon 8 and hub spindle 7 by the transition of circular arc 12, circular arc 12 is R8-R10mm.
Central siphon 8 is provided with spring block 9, and the top rake of spring block 9 is set to lean forward 5.5 °.
The present embodiment rushes welding tractor bridge suitable for 7T, 8T, 9T series commercial car.
Claims (2)
1. a kind of commercial car drives rear axle structure, including axle housing, main reducing gear and bevel differential assembly, bridge are provided with axle housing
The both ends of shell are connected with central siphon, and being reconnected outside central siphon has hub spindle, are equipped with wheel hub by bearing on hub spindle, are gone back on the inside of wheel hub
Provided with brake assembly and wheel hub brake drum assembly, brake chamber, brake chamber and wheel hub system are additionally provided with the central siphon under axle housing
Dynamic drum assembly connection, described axle housing, central siphon and hub spindle are to be welded as a whole after punch forming, it is characterised in that：The wheel
The connecting portion of hub axle and central siphon is cased with transition sleeve, and sealing ring is additionally provided with transition sleeve；The connecting portion of its central siphon and hub spindle
Position passes through arc transition, circular arc R8-R10mm.
A kind of 2. commercial car driving rear axle structure according to claim 1, it is characterised in that：Central siphon is provided with spring block,
The top rake of spring block is set to lean forward 5.5 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720577527.XU CN206812718U (en) | 2017-05-23 | 2017-05-23 | A kind of commercial car drives rear axle structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720577527.XU CN206812718U (en) | 2017-05-23 | 2017-05-23 | A kind of commercial car drives rear axle structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206812718U true CN206812718U (en) | 2017-12-29 |
Family
ID=60756084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720577527.XU Active CN206812718U (en) | 2017-05-23 | 2017-05-23 | A kind of commercial car drives rear axle structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206812718U (en) |
-
2017
- 2017-05-23 CN CN201720577527.XU patent/CN206812718U/en active Active
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |