CN108790603A - Bridge before the biasing driving of load truck - Google Patents
Bridge before the biasing driving of load truck Download PDFInfo
- Publication number
- CN108790603A CN108790603A CN201810442335.7A CN201810442335A CN108790603A CN 108790603 A CN108790603 A CN 108790603A CN 201810442335 A CN201810442335 A CN 201810442335A CN 108790603 A CN108790603 A CN 108790603A
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- China
- Prior art keywords
- gear
- helical gear
- distances
- axle housing
- driving
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- 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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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B35/00—Axle units; Parts thereof ; Arrangements for lubrication of axles
- B60B35/12—Torque-transmitting axles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
- B60K17/06—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of change-speed gearing
- B60K17/08—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of change-speed gearing of mechanical type
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Retarders (AREA)
Abstract
The present invention relates to a kind of driving front axle devices of load truck, bridge before the biasing driving of especially a kind of 3.5T-5.5T load trucks, include axle housing and the main gearbox assembly in axle housing, main gearbox assembly includes the active helical gear and driven helical gear of interconnection, its structural feature is, the central axis of active helical gear deviates A distances relative to vehicle centre-line to the left, simultaneously B distances are offset downward relative to the central transverse axis of axle housing, the A distances are 160-205mm, and the B distances are 20-35mm.The invention has the advantages that, overcome existing design technology prejudice, main gearbox assembly is biased greatly, the oil sump of bridge and engine leads to the problem of interference before avoiding driving, effectively improve the service life of related components, the failure rate of vehicle operation is reduced, and brings a unexpected technique effect：The scraped finish problem on bottom plate and road surface, trafficability can be effectively avoided to improve, it is ensured that the stable operation of engine.
Description
Technical field
The present invention relates to a kind of driving front axle device of load truck, especially a kind of 3.5T-5.5T load trucks it is inclined
Set the preceding bridge of driving.
Background technology
The load-carrying vehicles such as Medium Truck, the engineering machinery vehicle of existing configuration drum brake steering and driving axle, it is negative according to its load-carrying
Lotus configures corresponding engine and connects the steer drive front-axle of engine, and the determination of engine specifications illustrates its oil sump
The determination of shape, in leaf spring away under the limitation with wheelspan, the relative position between steer drive front-axle and engine also determines that.
However, any vehicle is intended to be capable of the mounting height of maximum limitation reduction engine, to obtain the bigger visual field
Distance ensures traffic safety to maximum possible.But since 3.5T-5.5T load trucks generally have more tall and big goods
Object compartment, therefore vehicle head part is often liftoff relatively high, driver's cabin is also high, and space is also larger compared to general vehicle, turns to
The master of bridge subtracts biasing respectively less than 100mm before driving, is preferably started with obtaining so not taking into account that and being designed to bridge before driving
Machine mounting height.
On the other hand, existing leaf spring is away from the limitation with wheelspan, the biasing of transfer case forerunner's flange generally in 200mm or so, this
Resulting in that forerunner's transmission shaft angle is bigger than normal, bridge is not only easy to generate interference with the oil sump of engine before resulting in driving, and
And but also transmission shaft and coupled transmission parts generate twisting vibration causes phase to generate additional alternating load
The service life reduction for closing parts, is susceptible to failure, is unfavorable for safe driving when vehicle being caused to run.
Invention content
One kind is provided it is an object of the invention to shortcoming according to prior art can reduce friction loss, improve
Transmission efficiency, optimization transmission shaft and its connected components working environment, improve the 3.5T-5.5T load trucks of each component life
Bridge before biasing driving.
Purpose of the present invention is realized by following approach：
Bridge before the biasing driving of 3.5T-5.5T load trucks, includes axle housing and the main gearbox assembly in axle housing,
Main gearbox assembly includes that the active helical gear of interconnection and driven helical gear, structural feature are, active spiral shell
The central axis of rotation gear deviates A distances relative to vehicle centre-line to the left, at the same relative to the central transverse axis of axle housing to
Lower offset B distances, the A distances are 160-205mm, and the B distances are 20-35mm.
The present invention overcomes the existing design prejudice to 3.5T-5.5T load trucks as a result, by main gearbox assembly
It is biased greatly, to the left and offsets downward placement so that the central axis of active helical gear is opposite with transfer case forerunner's flange
Unanimously, to enable forerunner's transmission shaft angle to become as low as reasonable interval significantly, in this way, avoiding bridge and engine before driving
Oil sump leads to the problem of interference, reduces the twisting vibration that transmission shaft and coupled transmission parts generate, and reduces driving section
Part twisting vibration generates additional alternating load, effectively improves the service life of related components, reduces the failure of vehicle operation
Rate improves the security reliability of driving.
Other than above-mentioned technique effect, the present invention also brings a unexpected technique effect：When load truck is soft
Ground, or repeat on a road when driving, the pressure that wheel portion road pavement generates so that rutting depth is larger, opposite
The middle section road surface of both sides track then raises up, main to subtract biasing less than 100mm, it is contemplated that hair by the scheme of the prior art
The position of motivation and its oil sump is also close to vehicle center axis, and thus wagon-floor is relatively low so that the road surface of intermediate projections
It is easy that scraped finish phenomenon occurs with vehicle floor, to further influence the operation of engine；And the present invention is by main gearbox assembly
Big biasing has been carried out, has been moved to the left more than 160mm, in this way, corresponding engine sump tank and vehicle floor are also just avoided
The road surface of intermediate projections, to avoid the scraped finish problem of bottom plate and road surface, trafficability from improving, it is ensured that the stabilization of engine
Operation.
The present invention can be specially further：
The A is preferably dimensioned to be 200-205mm.
To make the control of forerunner's transmission shaft angle interfere within 3 ° and not with engine sump tank, A sizes are the bigger the better.
The active helical gear, driven helical gear use hypoid tooth form.
Active helical gear, driven helical gear after biasing compare the screw conic tooth not biased using hypoid tooth form
Shape, not only the work smoothness of gear are good, wheel beam strength of tooth and contact strength are high.
Further include having planet hub reduction gear, which includes sun gear, ring gear and planet carrier, master
Speed reducer assembly is connect by two semiaxis and universal driving device with the sun gear of the planet hub reduction gear, and planetary gear side subtracts
The ring gear of fast device is fixed on the hub axle tube of vehicle steering device, and the output shaft of planet carrier then connects the wheel hub of vehicle, wheel
Hub then connects wheel.
The planet wheel hem retarding mechanism small using light weight, intensity high ratio is big is the torque that main reducing gear is transmitted
After its reduction of speed torque, then it is transmitted to the wheel on wheel hub, keeps the structure of steer drive front-axle compacter.Due to row
Star-wheel side reducer has shared part speed ratio, and main reducing gear size can be made to reduce, and driven helical gear diameter becomes smaller, bridge packet ruler
It is very little also and then to become smaller, the road clearance is accordingly increased, further trafficability is made to improve.
In conclusion bridge before being driven the present invention provides a kind of biasing of 3.5T-5.5T load trucks, can be such that forerunner passes
The between centers angle of cut of moving axis reaches zone of reasonableness.It avoids forerunner's transmission shaft from interfering with engine sump tank, reduces because transmission shaft reverses
The alternating load generated is vibrated, the working environment of the transfer case, drive axle that optimize transmission shaft and be attached thereto improves each component
Service life.It is each inside transmission shaft caused by the vibration of resilient suspension in driving process since two crossed axis angles of transmission shaft reduce very much
Relative motion between part reduces very much, avoids friction loss, improves transmission efficiency.
Description of the drawings
Fig. 1 is the structural schematic diagram of the preceding bridge of biasing driving of 3.5T-5.5T load trucks of the present invention.
Fig. 2 is the overlooking structure diagram of Fig. 1.
The present invention is described further with reference to embodiment.
Specific implementation mode
Most preferred embodiment：
With reference to attached drawing 1 and attached drawing 2, bridge before the biasing driving of 3.5T-5.5T load trucks includes axle housing 1 and is mounted on bridge
Main gearbox assembly 2 in shell 1, main gearbox assembly 2 subtract shell 21, active helical gear bearing block 22, active spiral by master
Gear 23, oil seal seat 24, active helical gear fore bearing 25, butterfly spring 26, driven helical gear 27, differential assembly 28 and
Other parts form；The drive line of vehicle further includes having semiaxis and universal driving device 3, transfer 4, brake apparatus 5, row
The compositions such as star wheel-side reduction device 6, wheel bolt 7 and wheel hub 8；Semiaxis and universal driving device 3 are by outer semiaxis 31, Universal drive
Device 32, inner shaft 33 form；Transfer 4 by knuckle shell 42, hub axle tube 41, track rod assembly 43 and other zero
Part forms；Brake apparatus 5 is made of brake drum 51, brake-shoe and friction plate assembly and other parts；Planet wheel-side reduction device 6
It is made of sun gear 61, planet carrier 62, planet carrier 63 and other parts.
Main gearbox assembly 2 is set to the big biasing in 1 left side of axle housing, for the radial torque input of engine to be converted to axial direction
Torque exports；Two semiaxis and universal driving device 3 can transmit power in the hollow axle housing 1 in both sides, transfer 4
To planet wheel-side reduction device 6；Transfer 4 is controlled between axle housing 1 and wheel hub 8 by controlling the swing of knuckle shell 42
The corner of ratch hub 8 realizes the steering of automobile；Two brake apparatus 5 are respectively arranged on 8 inside of wheel hub described in 1 both ends of axle housing；Two
Planet wheel-side reduction device 6 is set to power train end, drives sun gear 61 by half shaft transmission gear 3, ring gear 63, which is fixed on, to be turned
To on the hub axle tube 41 of device 4, planet carrier 62 exports on the wheel hub 8 that power can extremely be rotated relative to brake apparatus 5；Two wheels
Hub 8 is rotatably arranged in 1 both ends of axle housing respectively, and wheel hub 8 can connect wheel.
A sizes are the axis of active helical gear 23 relative to the left offset distance of vehicle centerline in Fig. 1.In practice by plate
Spring abutment position limits, and A dimensional maximums are 205mm.For make the control of forerunner's transmission shaft angle within 3 ° and not with engine oil
Bottom case is interfered, and A is preferably dimensioned to be 160 ~ 205mm.
B sizes are that the axis of active helical gear 23 can be relative to offset distance under 1 axis of axle housing in Fig. 1.Below-center offset it
Active helical gear 23, driven helical gear 27 afterwards uses hypoid tooth form, compared with the spiral cone gear form not biased, no
The work smoothness of only gear are good, wheel beam strength of tooth and contact strength are high.Make 22 shell of bearing block of active helical gear 23
Body is preferably dimensioned to be 20 ~ 35mm without departing from the bottoms Qiao Bao, B.
The not described part of the present invention is same as the prior art.
Claims (4)
1. bridge before the biasing driving of load truck, includes axle housing and the main gearbox assembly in axle housing, main deceleration
Device assembly includes the active helical gear and driven helical gear of interconnection, which is characterized in that in active helical gear
Mandrel line deviates A distances relative to vehicle centre-line to the left, at the same the central transverse axis relative to axle housing offset downward B away from
From the A distances are 160-205mm, and the B distances are 20-35mm.
2. bridge before the biasing driving of load truck according to claim 1, which is characterized in that the A is preferably dimensioned to be
200-205mm。
3. bridge before the biasing driving of load truck according to claim 1, which is characterized in that the active helical gear,
Driven helical gear uses hypoid tooth form.
4. bridge before the biasing driving of load truck according to claim 1, which is characterized in that further include thering is planetary gear side to subtract
Fast device, the planet hub reduction gear include sun gear, ring gear and planet carrier, and main gearbox assembly passes through two semiaxis and ten thousand
It is connect to transmission device with the sun gear of the planet hub reduction gear, the ring gear of planet hub reduction gear is fixed on Vehicular turn
On the hub axle tube of device, the output shaft of planet carrier then connects the wheel hub of vehicle, and wheel hub then connects wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810442335.7A CN108790603A (en) | 2018-05-10 | 2018-05-10 | Bridge before the biasing driving of load truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810442335.7A CN108790603A (en) | 2018-05-10 | 2018-05-10 | Bridge before the biasing driving of load truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108790603A true CN108790603A (en) | 2018-11-13 |
Family
ID=64092205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810442335.7A Pending CN108790603A (en) | 2018-05-10 | 2018-05-10 | Bridge before the biasing driving of load truck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108790603A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201998747U (en) * | 2010-11-16 | 2011-10-05 | 十堰光社工贸有限公司 | Front steering-driving axle |
| CN202480780U (en) * | 2012-03-12 | 2012-10-10 | 陕西汉德车桥有限公司 | Single-level speed reducing tandem driving axle |
| WO2014035869A2 (en) * | 2012-08-29 | 2014-03-06 | Eaton Corporation | Locking differential having combination preload springs for maintained contact |
| CN203832245U (en) * | 2014-03-06 | 2014-09-17 | 诸城福田汽车科技开发有限公司 | Steering drive front axle assembly with hub speed reduction device and vehicle |
| CN207278791U (en) * | 2017-09-12 | 2018-04-27 | 江西海峰重工科技有限责任公司 | One kind wheel side planetary reducer |
-
2018
- 2018-05-10 CN CN201810442335.7A patent/CN108790603A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201998747U (en) * | 2010-11-16 | 2011-10-05 | 十堰光社工贸有限公司 | Front steering-driving axle |
| CN202480780U (en) * | 2012-03-12 | 2012-10-10 | 陕西汉德车桥有限公司 | Single-level speed reducing tandem driving axle |
| WO2014035869A2 (en) * | 2012-08-29 | 2014-03-06 | Eaton Corporation | Locking differential having combination preload springs for maintained contact |
| CN203832245U (en) * | 2014-03-06 | 2014-09-17 | 诸城福田汽车科技开发有限公司 | Steering drive front axle assembly with hub speed reduction device and vehicle |
| CN207278791U (en) * | 2017-09-12 | 2018-04-27 | 江西海峰重工科技有限责任公司 | One kind wheel side planetary reducer |
Non-Patent Citations (1)
| Title |
|---|
| 长春汽车研究所: "《汽车设计手册 整车·底盘卷》", 31 December 1998, 长春汽车研究所 * |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181113 |
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| RJ01 | Rejection of invention patent application after publication |