CN109080376B - Drive axle with heat abstractor - Google Patents
Drive axle with heat abstractor Download PDFInfo
- Publication number
- CN109080376B CN109080376B CN201810948848.5A CN201810948848A CN109080376B CN 109080376 B CN109080376 B CN 109080376B CN 201810948848 A CN201810948848 A CN 201810948848A CN 109080376 B CN109080376 B CN 109080376B
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- CN
- China
- Prior art keywords
- heat dissipation
- hub
- barrel
- drive axle
- dissipation fins
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B27/00—Hubs
- B60B27/0047—Hubs characterised by functional integration of other elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B27/00—Hubs
- B60B27/0015—Hubs for driven wheels
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
- General Details Of Gearings (AREA)
Abstract
The invention relates to a drive axle, aiming at solving the problems of over high heat productivity and low self-radiating efficiency of the hub part of the existing drive axle; the driving axle with the heat dissipation device is characterized in that the heat dissipation device is fixedly mounted at the hub position of the end part of the driving axle and provided with a cylindrical barrel, the wall surface of an inner hole of the barrel is attached to the outer cylindrical surface of the inner side of a rim mounting rib on the hub, and the outer circumferential surface of the barrel is provided with heat dissipation fins which are of an integral structure with the barrel. In the invention, the heat dissipation fins greatly increase the contact area between the hub part of the driving strip and air, and simultaneously stir the air in the process that the heat dissipation fins rotate along with the hub, so that the air flow at the hub part is enhanced, the heat dissipation efficiency of the hub part of the driving axle is improved, and the overhigh temperature of the hub part of the driving axle is avoided.
Description
Technical Field
The present invention relates to a drive axle, and more particularly, to a drive axle having a heat dissipation device.
Background
In a drive axle for a construction machine, a hub reduction gear is mounted in a hub at an end of the axle, and a wet brake is also mounted in some cases. The excessive temperature causes the oil used for cooling and lubricating in the drive axle to deteriorate, and simultaneously, the aging of the sealing element is accelerated, and the service life of the sealing element is shortened.
Disclosure of Invention
The invention aims to solve the technical problems of overhigh heat productivity and low self-radiating efficiency of the hub part of the existing drive axle, and provides the drive axle with the heat radiating device, wherein the heat radiating device accelerates the heat radiation of the hub part at the end part of the drive axle and avoids overhigh temperature.
The technical scheme for realizing the purpose of the invention is as follows: the driving axle with the heat dissipation device is characterized in that the heat dissipation device is fixedly mounted at the hub position of the end part of the driving axle and provided with a cylindrical barrel, the wall surface of an inner hole of the barrel is attached to the outer cylindrical surface of the inner side of a rim mounting rib on the hub, and the outer circumferential surface of the barrel is provided with heat dissipation fins which are of an integral structure with the barrel. Further, the maximum circumcircle of the heat radiating fins is flush with the maximum excircle of the hub. In the invention, the heat dissipation fins greatly increase the contact area between the hub part of the driving strip and air, and simultaneously stir the air in the process that the heat dissipation fins rotate along with the hub, so that the air flow at the hub part is enhanced, the heat dissipation efficiency of the hub part of the driving axle is improved, and the overhigh temperature of the hub part of the driving axle is avoided.
In the drive axle with the heat dissipation device, the cylinder body is formed by splicing two to four arc-shaped arc plates end to end, and the adjacent two arc plates are fixedly connected at the abutting part. Thus, the heat dissipation device is convenient to mount on the drive axle.
In the above drive axle with the heat dissipation device, the heat dissipation fins extend from one end of the cylinder to the other end of the cylinder. Furthermore, the heat dissipation fins are parallel and spiral. The spiral radiating fins stir air to generate axial flow when rotating, so that air convection is enhanced, and the radiating efficiency is improved. Furthermore, the spiral direction of the heat dissipation fins on the cylindrical surface on the upper half side of the cylinder body is opposite to the spiral direction of the heat dissipation fins on the other cylindrical surface on the upper half side of the cylinder body, so that when the hub rotates, air on the surface of the hub flows in two directions to form convection, and the heat dissipation effect is further improved.
Compared with the prior art, the invention solves the problems of overhigh heat productivity and low self-heat dissipation efficiency of the hub part of the conventional drive axle. In the invention, the heat dissipation fins greatly increase the contact area between the hub part of the driving strip and air, and simultaneously stir the air in the process that the heat dissipation fins rotate along with the hub, so that the air flow at the hub part is enhanced, the heat dissipation efficiency of the hub part of the driving axle is improved, and the overhigh temperature of the hub part of the driving axle is avoided.
Drawings
FIG. 1 is a partial view of the drive axle of the present invention at the hub location.
Fig. 2 is a front view of a heat sink in the transaxle of the present invention.
FIG. 3 is a side view of a heat sink assembly for a transaxle of the present invention
Fig. 4 is a partially enlarged view of a portion a in fig. 3.
Part names and serial numbers in the figure:
the driving axle comprises a driving axle 1, a hub 2, a rim mounting rib 21, a hub shell 22, a cylinder 3, a heat radiating fin 31, a wing plate 32, a bolt 4, a nut 41 and a disc spring 42.
Detailed Description
The following description of the embodiments refers to the accompanying drawings.
As shown in fig. 1, in the present embodiment, a heat sink is attached to the hub portion of the transaxle 1, the casing of the hub 2 of the transaxle 1 is substantially cylindrical, and a hub reduction gear, a wet brake, and other components are attached to a space formed by the hub casing 22 and the end cover. The outer end of the outer cylindrical surface of the hub shell 22 is provided with a rim mounting rib 21, and a plurality of through holes are formed in the rim mounting rib and are used for being matched with bolts to be fixedly connected with a rim so as to realize wheel mounting. The outer surface of the hub shell on the inner side of the rim mounting bead 21 is an outer cylindrical surface, and a heat sink is fixedly mounted on the outer cylindrical surface.
As shown in fig. 2, the heat dissipation device has a cylindrical barrel 3, the barrel 3 is formed by splicing two semicircular arc plates end to end, and the adjacent two arc plates are fixedly connected at the adjacent position through a fastener assembly. As shown in fig. 3 and 4, wing plates 32 are disposed on both sides of the arc-shaped plate, the two wing plates 32 on the arc-shaped plate are opposite to the wing plates 32 on the other arc-shaped plate, through holes are disposed on the two opposite wing plates, a bolt 4 in the fastening assembly penetrates through the through hole to cooperate with a nut 41 to splice the two arc-shaped plates to form a cylindrical barrel 3, and a belleville spring 42 is used between the nut 41 and the wing plates 32 to ensure a pre-tightening force. The cylinder 3 is composed of two arc-shaped plates, and can be formed by splicing three or more arc-shaped plates end to end in specific implementation. The inner wall surface of the cylinder body is tightly attached to the outer cylindrical surface of the hub through locking of the fastening piece.
The outer circumference of the cylinder 3 is provided with heat dissipation fins 31 which are integrated with the cylinder, that is, the outer side of each arc-shaped plate is provided with the heat dissipation fins 31, the heat dissipation fins 31 extend from one end of the arc-shaped plate to the other end, the heat dissipation fins 31 on the same arc-shaped plate are arranged in parallel and are in a spiral shape, the spiral directions of the heat dissipation fins on the two arc-shaped plates are opposite, and the maximum circumscribed circle of all the heat dissipation fins is coaxial with the circumscribed circle of the rim mounting rib 21 and is not larger than the diameter of the circumscribed circle of the rim mounting rib 21.
In the invention, the heat dissipation fins greatly increase the contact area between the hub part of the drive axle and air, and simultaneously stir the air in the process that the heat dissipation fins rotate along with the hub, so that two air flows with different flowing directions are generated at the hub part, the air flow at the hub part is enhanced, the heat dissipation efficiency of the hub part of the drive axle is improved, and the overhigh temperature of the hub part of the drive axle is avoided.
Claims (4)
1. A drive axle with a heat dissipation device is characterized in that the hub part at the end part of the drive axle is fixedly provided with the heat dissipation device, the heat dissipation device is provided with a cylindrical barrel, the wall surface of an inner hole of the barrel is attached to the outer cylindrical surface of the inner side of a rim mounting rib on a hub, and the outer circumferential surface of the barrel is provided with heat dissipation fins which are integrated with the barrel; the heat dissipation fins are parallel and spiral, and the spiral direction of the heat dissipation fins on the cylindrical surface on the upper half side of the cylinder body is opposite to the spiral direction of the heat dissipation fins on the other cylindrical surface on the upper half side of the cylinder body.
2. The transaxle having a heat dissipating device of claim 1 wherein a maximum circumscribed circle of the heat dissipating fins is flush with a maximum outer circle of the hub.
3. The drive axle with the heat dissipation device as recited in claim 1, wherein the cylinder is formed by splicing two to four arc-shaped plates in a terminating manner, and two adjacent arc-shaped plates are fixedly connected at the abutting position.
4. The transaxle having a heat dissipating device according to any one of claims 1 to 3 wherein the heat dissipating fins extend from one end of the cylinder to the other end of the cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810948848.5A CN109080376B (en) | 2018-08-20 | 2018-08-20 | Drive axle with heat abstractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810948848.5A CN109080376B (en) | 2018-08-20 | 2018-08-20 | Drive axle with heat abstractor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109080376A CN109080376A (en) | 2018-12-25 |
| CN109080376B true CN109080376B (en) | 2022-01-11 |
Family
ID=64794088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810948848.5A Active CN109080376B (en) | 2018-08-20 | 2018-08-20 | Drive axle with heat abstractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109080376B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB902051A (en) * | 1960-06-11 | 1962-07-25 | Albion Motors Ltd | Improvements in or relating to motor vehicle braking apparatus |
| FR2265008A1 (en) * | 1974-03-22 | 1975-10-17 | Schmitz Peter | Vehicle brake mechanism for heavy loads - has external shoes for low cost production and replacement |
| DE10133985A1 (en) * | 2001-04-30 | 2002-10-31 | Knorr Bremse Systeme | wheel hub |
| CN2564390Y (en) * | 2002-08-21 | 2003-08-06 | 康国宗 | Air cooled fin type automobile hub |
| CN104348291A (en) * | 2013-07-26 | 2015-02-11 | 上海众汇泡沫铝材有限公司 | Foam aluminum heat radiator for motor |
| CN106438783A (en) * | 2016-12-15 | 2017-02-22 | 玉林市远航铸造有限公司 | Novel air-blowing automobile hub |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH112125A (en) * | 1997-06-11 | 1999-01-06 | Honda Motor Co Ltd | Motorcycle engine cooling structure |
| JP2001320870A (en) * | 2000-05-09 | 2001-11-16 | Sumitomo Metal Ind Ltd | Eddy current type reduction gear |
| JP2011069457A (en) * | 2009-09-28 | 2011-04-07 | Hitachi Constr Mach Co Ltd | Wheel type construction machine |
| CN104810942B (en) * | 2015-04-15 | 2017-03-01 | 新疆金风科技股份有限公司 | Permanent magnet direct-driving aerogenerator, system and its stator |
| CN106451866B (en) * | 2016-12-05 | 2019-05-10 | 北京金风科创风电设备有限公司 | Motor rotor support and motor |
| CN206668829U (en) * | 2017-03-30 | 2017-11-24 | 广西柳工机械股份有限公司 | Dry type braking disk component with forced heat dissipation function |
| CN207455546U (en) * | 2017-09-29 | 2018-06-05 | 江门市创亚照明电器有限公司 | A kind of heat-dissipating casing with tilting fin |
| CN108331896A (en) * | 2018-02-11 | 2018-07-27 | 西北工业大学 | A kind of fluid coupling with heat pipe-type radiating subassembly |
-
2018
- 2018-08-20 CN CN201810948848.5A patent/CN109080376B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB902051A (en) * | 1960-06-11 | 1962-07-25 | Albion Motors Ltd | Improvements in or relating to motor vehicle braking apparatus |
| FR2265008A1 (en) * | 1974-03-22 | 1975-10-17 | Schmitz Peter | Vehicle brake mechanism for heavy loads - has external shoes for low cost production and replacement |
| DE10133985A1 (en) * | 2001-04-30 | 2002-10-31 | Knorr Bremse Systeme | wheel hub |
| CN2564390Y (en) * | 2002-08-21 | 2003-08-06 | 康国宗 | Air cooled fin type automobile hub |
| CN104348291A (en) * | 2013-07-26 | 2015-02-11 | 上海众汇泡沫铝材有限公司 | Foam aluminum heat radiator for motor |
| CN106438783A (en) * | 2016-12-15 | 2017-02-22 | 玉林市远航铸造有限公司 | Novel air-blowing automobile hub |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109080376A (en) | 2018-12-25 |
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