CN208393120U - A kind of auxiliary box structure and articulated truck - Google Patents
A kind of auxiliary box structure and articulated truck Download PDFInfo
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- CN208393120U CN208393120U CN201820906881.7U CN201820906881U CN208393120U CN 208393120 U CN208393120 U CN 208393120U CN 201820906881 U CN201820906881 U CN 201820906881U CN 208393120 U CN208393120 U CN 208393120U
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- output gear
- gear component
- auxiliary box
- box structure
- transfer case
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Abstract
The utility model discloses a kind of auxiliary box structures, applied in articulated truck, auxiliary box structure includes cabinet, input shaft, differential mechanism, rear output gear component I, preceding output gear component I, rear output gear component II, preceding output gear component II, preceding output gear component III；Wherein, the differential mechanism is located on transfer case topmost axis, coaxial with the input shaft of transfer case；Power is reached differential mechanism by input shaft, and differential mechanism distributes power to rear output gear component I and preceding output gear component I；Output gear component I is engaged with rear output gear component II afterwards, outputs power to articulated body；Preceding output gear component I is engaged with preceding output gear component II, and preceding output gear component II is engaged with preceding output gear component III again, outputs power to Qian Qiao.The utility model reduces the front and back bulk of transfer case lowest part axis, can improve the output of transfer case to preceding bridge；The certainty ratio distribution of front and back output torque can be achieved.
Description
Technical field
The utility model relates to a kind of auxiliary box structures, belong to transmission technical field.
Background technique
Articulated truck is the special equipment for being specifically applied to the bad working environments such as rainy, muddy, road bumpiness, is had
Forward and backward vehicle frame is connected by articulated body or pendular ring, and front frame arranges the components such as engine, gearbox, transfer case, driver's cabin,
It is supported by preceding bridge, Rear frame arranges loading space, supports by jackshaft and rear axle.It is as shown in Figure 1 the power of articulated truck
Transmit schematic diagram.Special applying working condition requires articulated truck to have splendid a driving capability and cross-country power, and mostly three
Bridge drives entirely, when loading space zero load, 50% or so of preceding bridge carrying complete vehicle weight (curb weight), but loading space full load, three bridges carry base
This is consistent, and Huo Zhezhong, rear axle are slightly higher.Transfer case is the distributing means for power supply of articulated truck, be located at power source (engine,
Gearbox) and power execution unit (drive axle) between, play the role of vital.
Currently, transfer case used by articulated truck has following problem:
1, torque distribution cannot achieve customization, can only be forward and backward 1:1 output, but according to the gravity of articulated truck point
Match, forward and backward output torque 1:2 or so is preferable when distributing, and optimal state is distributed in proportion according to the carrying of each bridge.
2, differential mechanism is located on transfer case lowest part axis, and forward and backward output is coaxial, which has two: a, causing
Bulk increases before and after transfer case lowest part position of output axle, and the transmission shaft of transfer case to preceding bridge shortens, floats downward on preceding bridge
It is dynamic very big and big compared with short pass moving axis difficulty of processing on the influence of the angle of the transmission shaft, it is at high cost；B, the rear output height of transfer case
It is lower, cause the road clearance of articulated body lower part very low, influences the passability of vehicle.
3, differential lock is locked using castellated differential lock or indifferential, and for castellated differential lock when application acts, there are one
Fixed impact and mechanical damage, it is desirable that apply under low speed or stationary state；If indifferential is locked, it is possible that a wherein drive
The two sides tire of dynamic bridge skids simultaneously and vehicle is made to lose driving capability.
4, when vehicle runs out of steam source (such as engine misses) or main steering pump operation irregularity suddenly, vehicle will be lost
Steering capability or steering force are insufficient, so that vehicle is out of control, have some potential safety problems.
Summary of the invention
Insufficient according to prior art, the utility model provides a kind of auxiliary box structure, deposits in the prior art to solve
The problem of.
The utility model is realized by following technical scheme:
A kind of auxiliary box structure, be applied to articulated truck in, auxiliary box structure include cabinet, input shaft, differential mechanism,
Output gear component I, preceding output gear component I, rear output gear component II, preceding output gear component II, preceding output gear afterwards
Component III；Wherein, the differential mechanism is located on transfer case topmost axis, coaxial with the input shaft of transfer case；The input shaft will
Power reaches differential mechanism, and differential mechanism distributes power to rear output gear component I and preceding output gear component I；Output gear afterwards
Component I is engaged with rear output gear component II, outputs power to articulated body；Preceding output gear component I and preceding output gear group
Part II engages, and preceding output gear component II is engaged with preceding output gear component III again, outputs power to Qian Qiao.
Preferably, the preceding output gear component II is nested in the rotation axis of rear output gear component II by bearing
On, the rotation axis of rear output gear component II only serves support and positioning action, the two revolving speed phase to preceding output gear component II
Without influence between mutually.
Preferably, rear output gear component II and preceding output gear component III be not coaxial, rear output gear component II
In on the jackshaft of transfer case, preceding output gear component III is located on the lowest part axis of transfer case, and transmission is exported after being promoted with this
The height of axis, and the height of articulated body is accordingly raised, promote the passage capacity of vehicle.
Preferably, the differential mechanism uses planetary differential, by the proportion of the train number of teeth, realize front and back torque according to
Special ratios distribution；Or torque distribution is customized according to the carrying of three drive axles, realize the reasonable distribution of vehicle driving force.
Preferably, the planetary differential includes planet carrier, planetary gear set, planetary gear, sun wheel assembly I, the sun
Wheel assembly II；The input shaft direct connection of planet carrier and transfer case, it is synchronized to rotate；The rotation axis of planetary gear set is connected firmly in planet carrier
On, with planetary carrier revolution；Planetary gear set is engaged with planetary gear, sun wheel assembly II respectively；The rotation axis of planetary gear also connects firmly
On planet carrier, with planetary carrier revolution, planetary gear is engaged with sun wheel assembly I；Sun wheel assembly I and preceding output gear component I
It coaxially connects firmly, output gear component III before then outputting power to；Sun wheel assembly II is coaxial solid with rear output gear component I
Connection, then outputs power to rear output gear component II.
Preferably, auxiliary box structure further includes differential lock, is located on transfer case topmost axis, the input with transfer case
Axis is coaxial.
Preferably, the differential lock is locked using shaft space difference speed；The between centers slide limiting differential is locked
Differential lock support is connected firmly with the cabinet of transfer case, no rotation；
External tooth friction disc pack, connect with differential mechanism, synchronized to rotate；
Internal tooth friction disc pack, the rotation axis connection with rear output gear component I are synchronized to rotate；And
Cylinder component is braked, is controlled by external hydraulic system, by applying oil pressure, brakes cylinder component for external tooth frictional disk group
Part and internal tooth friction disc pack compress, and realize the locking of differential mechanism.
Preferably, shaft space difference speed lock is locked using friction disk type slide limiting differential.
Preferably, auxiliary box structure further includes emergency steering pump；The emergency steering pump direct connection is in rear output gear group
In the rotation axis of part II, the two rotates at the same speed；When source or the Main Hydraulic Pump failure of running out of steam suddenly in vehicle driving process,
It is counter to drag emergency steering pump rotation by the rotation of wheel itself, power source is supplemented for steering system, makes vehicle that there is certain turn to
Ability guarantees that vehicle safety stops comparatively safe region.
A kind of articulated truck, for the vehicle with forward and backward vehicle frame and articulated body, including auxiliary box structure above-mentioned.
The utility model the utility model has the advantages that
A, the certainty ratio distribution of front and back output torque can be achieved；
B, rear output position is improved, and the road clearance of articulated body lower part increases, and promotes handling capacity；
C, shorten the front and back bulk of transfer case lowest part axis, the propeller shaft length of increase transfer case to preceding bridge；
D, it is equipped with friction disk type slide limiting differential lock, the service life is long, reliable performance；
E, it is equipped with emergency steering pump, promotes drive safety.
Detailed description of the invention
Fig. 1 is articulated truck power transmission schematic diagram；
Fig. 2 is articulated truck auxiliary box structure figure；
Fig. 3 is the planetary differential structure chart of articulated truck transfer case；
Fig. 4 is the shaft space difference speed lock construction figure of articulated truck transfer case；
Fig. 5 is using the vehicle power transmission schematic diagram after auxiliary box structure described in the utility model.
Description of symbols: N1, engine；N2, gearbox；N3, transmission shaft；N4, transfer case；N5, transmission shaft；N6, hinge
Junctor；N7, transmission shaft；N8, jackshaft；N9, transmission shaft；N10, rear axle；N11, preceding bridge；N12, transmission shaft；1, cabinet；2, it inputs
Axis；3, planetary differential；3-1, planet carrier；3-2 planetary gear set；3-3, planetary gear；3-4, sun wheel assembly I；3-5, the sun
Wheel assembly II；4, shaft space difference speed is locked；4-1, differential lock support；4-2, external tooth friction disc pack；4-3, internal tooth friction disc pack；4-
4, cylinder component is braked；5, rear output gear component I；6, preceding output gear component I；7, rear output gear component II；8, preceding output
Gear assembly II；9, preceding output gear component III；10, emergency steering pump.
Specific embodiment
The utility model is further described with reference to the accompanying drawing.Implement to be only used for clearly illustrating this reality below
With novel technical solution, and it cannot be used as a limitation the limitation protection scope of the utility model.
The auxiliary box structure of the utility model embodiment can be used for the articulated truck of the utility model embodiment；This
The articulated truck of utility model embodiment, the auxiliary box structure with the utility model embodiment.
As shown in Figure 1, power source is engine N1, speed change is carried out by gearbox N2, controls travel speed and driving
Power, the power of gearbox N2 output reach transfer case N4, transfer case N4 passes through transmission shaft N12 and biography respectively by transmission shaft N3
Power is reached jackshaft N8 by transmission shaft N7 again by power transmission to preceding bridge N11 and articulated body N6, articulated body N6 by moving axis N5, in
Bridge N8 is front and back penetrating bridge, and a part of power is reached rear axle N10 by transmission shaft N9.
Transfer case N4 is existing transfer case, and front and back output is coaxial, causes the height of transmission shaft N5 and articulated body N6 lower, shadow
Ring vehicle passage capacity；Differential mechanism and differential lock are located on the nethermost output shaft of transfer case, the lower dimension of transfer case N4
It is larger, cause transfer case N4 extremely short to the transmission shaft size of preceding bridge N11, the angle of preceding bridge N11 to float up and down to transmission shaft N12
It is affected, and big compared with short transmission shaft manufacture difficulty, it is at high cost.
As shown in Fig. 2, the auxiliary box structure of articulated truck described in the utility model include cabinet 1, input shaft 2,
Planetary differential 3, shaft space difference speed lock 4, rear output gear component I 5, preceding output gear component I 6, rear output gear component II 7,
Preceding output gear component II 8, preceding output gear component III 9, emergency steering pump 10.
Power reaches planetary differential 3 by input shaft 2, and planetary differential 3 distributes power to rear output gear component I
5 and preceding output gear component I 6；Output gear component I 5 is engaged with rear output gear component II 7 afterwards, is outputted power to hinged
Body N6；Preceding output gear component I 6 is engaged with preceding output gear component II 8, and preceding output gear component II 8 is nested in by bearing
Afterwards in the rotation axis of output gear component II 7, the rotation axis of rear output gear component II 7 plays preceding output gear component II 8
To support and positioning action, the two revolving speed is between each other without influence；Preceding output gear component II 8 and preceding output gear component III 9
Engagement, bridge N11 before outputting power to；10 direct connection of steering pump meet an urgent need in the rotation axis of rear output gear component II 7, the two is same
Speed rotation；Planetary differential 3 and shaft space difference speed lock 4 are located on transfer case topmost axis, coaxial with power output shaft, reduce transfer
The front and back bulk of case lowest part axis can improve the output of transfer case to preceding bridge；Output gear component II and preceding output gear afterwards
Wheel assembly III is not coaxial, and rear output gear component II is located on the jackshaft of transfer case, and preceding output gear component III is located at transfer
On the lowest part axis of case, the height of take-off (propeller) shaft N5 after effectively being promoted can accordingly raise the height of articulated body N6, be promoted whole
The passage capacity of vehicle.
The effect of emergency steering pump 10 is when running out of steam source (such as engine misses) suddenly in vehicle driving process, according to
It is counter that emergency steering pump 10 is dragged to rotate by the rotation of wheel itself, enough power sources are provided for steering system, vehicle is made to have one
Determine steering capability, guarantees that vehicle safety rests in the comparatively safe region such as roadside.
As shown in figure 3, planetary differential 3 is located on transfer case topmost axis, it is coaxial with the input shaft 2 of transfer case.Planet
Differential mechanism 3 includes planet carrier 3-1, planetary gear set 3-2, planetary gear 3-3, I 3-4 of sun wheel assembly, II 3- of sun wheel assembly
5.Planet carrier 3-1 and 2 direct connection of transfer case input shaft, it is synchronized to rotate；The rotation axis of planetary gear set 3-2 is connected firmly in planet carrier 3-1
On, it revolves with planet carrier 3-1；Planetary gear set 3-2 is engaged with planetary gear 3-3, II 3-5 of sun wheel assembly respectively；Planetary gear 3-3
Rotation axis also connect firmly on planet carrier 3-1, revolve with planet carrier 3-1, planetary gear 3-3 engages with I 3-4 of sun wheel assembly；Too
Positive I 3-4 of wheel assembly with preceding output gear component I 6 is coaxial connects firmly, output gear component III 9 before then outputting power to；The sun
II 3-5 of wheel assembly with rear output gear component I 5 is coaxial connects firmly, then output power to rear output gear component II 7.This reality
Front and back torque unequal distribution can be realized by the proportion of the train number of teeth with novel planetary differential mechanism 3, can be driven according to three
The carrying of bridge distributes to customize torque, realizes the reasonable distribution of vehicle driving force.Existing crossed-axis differential structure is simple, but
Front and back output torque can not customize distribution, not be suitable for articulated truck.
As shown in figure 4, shaft space difference speed lock 4 includes differential lock support 4-1, external tooth friction disc pack 4-2, internal tooth frictional disk group
Part 4-3, braking cylinder component 4-4.Differential lock support 4-1 is connected firmly with transfer case body 1, no rotation；External tooth friction disc pack 4-2 is logical
Spline or similar structures are crossed to connect with planet carrier 3-1, it is synchronized to rotate；Internal tooth friction disc pack 4-3 passes through spline or similar structures
It is synchronized to rotate with the rotation axis connection of rear output gear component I 5；Braking cylinder component 4-4 is controlled by external hydraulic system, is passed through
Apply oil pressure, braking cylinder component 4-4 can compress external tooth friction disc pack 4-2 and internal tooth friction disc pack 4-3, realize that planet is poor
The locking of fast device 3.The effect of shaft space difference speed lock 4 is to prevent from certain wheel from having skidded vehicle is caused to be short of power.When vehicle is logical
When crossing muddy or ramp section, shaft space difference speed is locked into 4 lockings, guarantees that vehicle has sufficient driving force.Shaft space difference speed locks 4
Friction disk type slide limiting differential lock applies smooth without rate limitation when application, has no mechanical damage, the service life is long, almost in transfer case
No replacement is required in Life cycle；The prior art mostly uses castellated differential lock, because during application, driving gear disc and driven
Fluted disc needs mutually insertion, can generate certain impact, influence the service life, thus the differential lock of the form can only allow in low speed or
Application acts under stationary state.
Shown in Fig. 5, using the vehicle power transmission schematic diagram after the transfer case of the utility model, it can be seen that transfer
The transmission shaft N12 of case N4 to preceding bridge N11 is lengthened, and the influence of bridge N11 to float up and down to transmission shaft N12 angle before reducing reduces
The manufacture difficulty and cost of transmission shaft N12；The height of elevated height after transfer case output, articulated body N6 improves, and effectively increases hinge
The road clearance of the lower part junctor N6 improves vehicle passability.
Articulated truck, for the vehicle with forward and backward vehicle frame and articulated body, generally three axis drive structure, front frame entirely
Arrange a bridge, Rear frame arranges two bridges, and the carrying of bridge, jackshaft and rear axle is almost the same before full load or jackshaft and rear axle
Carrying it is slightly higher.For currently there are the lesser two-axis articulated truck of payload ratings, the prior art point
Dynamic case can meet, if the forward and backward drive axle carrying difference of the certainly described two-axle car is larger, using the utility model institute
The transfer case stated is more reasonable.Transfer case described in the utility model be also applied in the future it is possible that three axis more than hinge
Formula dumper is connect, only need to carry out rational proportion differential mechanism train according to carrying ratio, realize the reasonable distribution of forward and backward driving torque.
Although with reference to exemplary embodiment describes the application, it is to be understood that, term used be explanation and it is exemplary,
Term and not restrictive.The spirit or reality that can be embodied in a variety of forms due to the application without departing from utility model
Matter, it should therefore be appreciated that above-described embodiment is not limited to any of the foregoing details, and the spirit defined by appended claims
It all should be accompanying power with the whole change and modification widely explained, therefore fallen into claim or its equivalent scope in range
Benefit requires to be covered.
Claims (10)
1. a kind of auxiliary box structure is applied in articulated truck, it is characterised in that: auxiliary box structure includes cabinet, input
Axis, differential mechanism, rear output gear component I, preceding output gear component I, rear output gear component II, preceding output gear component II,
Preceding output gear component III；
Wherein, the differential mechanism is located on transfer case topmost axis, coaxial with the input shaft of transfer case；
Power is reached differential mechanism by the input shaft, and differential mechanism distributes power to rear output gear component I and preceding output gear
Component I；
Output gear component I is engaged with rear output gear component II afterwards, outputs power to articulated body；
Preceding output gear component I is engaged with preceding output gear component II, preceding output gear component II again with preceding output gear component
III engagement, outputs power to Qian Qiao.
2. a kind of auxiliary box structure according to claim 1, it is characterised in that: the preceding output gear component II passes through axis
It holds and is nested in the rotation axis of rear output gear component II, the rotation axis of rear output gear component II is to preceding output gear component II
Support and positioning action are only served, the two revolving speed is between each other without influence.
3. a kind of auxiliary box structure according to claim 1, it is characterised in that: rear output gear component II and preceding output gear
Wheel assembly III is not coaxial, and rear output gear component II is located on the jackshaft of transfer case, and preceding output gear component III is located at transfer
On the lowest part axis of case, the height of take-off (propeller) shaft after being promoted with this, and the height of articulated body is accordingly raised, promote the logical of vehicle
Cross performance.
4. a kind of auxiliary box structure according to claim 1, it is characterised in that: the differential mechanism uses planetary differential,
By the proportion of the train number of teeth, the pro rate of front and back torque is realized.
5. a kind of auxiliary box structure according to claim 4, it is characterised in that: the planetary differential include planet carrier,
Planetary gear set, planetary gear, sun wheel assembly I, sun wheel assembly II；
The input shaft direct connection of planet carrier and transfer case, it is synchronized to rotate；
The rotation axis of planetary gear set connects firmly on planet carrier, with planetary carrier revolution；Planetary gear set respectively with planetary gear, the sun
Wheel assembly II engages；
The rotation axis of planetary gear also connects firmly on planet carrier, with planetary carrier revolution, and planetary gear is engaged with sun wheel assembly I；
Sun wheel assembly I is coaxially connected firmly with preceding output gear component I, output gear component III before then outputting power to；
Sun wheel assembly II is coaxially connected firmly with rear output gear component I, then outputs power to rear output gear component II.
6. a kind of auxiliary box structure according to claim 1, it is characterised in that: auxiliary box structure further includes differential lock,
It is coaxial with the input shaft of transfer case on transfer case topmost axis.
7. a kind of auxiliary box structure according to claim 6, it is characterised in that: the differential lock is locked using shaft space difference speed；
The between centers slide limiting differential is locked
Differential lock support is connected firmly with the cabinet of transfer case, no rotation；
External tooth friction disc pack, connect with differential mechanism, synchronized to rotate；
Internal tooth friction disc pack, the rotation axis connection with rear output gear component I are synchronized to rotate；And
Brake cylinder component, controlled by external hydraulic system, by applying oil pressure, braking cylinder component by external tooth friction disc pack and
Internal tooth friction disc pack compresses, and realizes the locking of differential mechanism.
8. a kind of auxiliary box structure according to claim 7, it is characterised in that: shaft space difference speed lock is slided using friction disk type limit
Differential lock.
9. a kind of auxiliary box structure according to claim 1, it is characterised in that: auxiliary box structure further includes that emergency turns to
Pump；
In the rotation axis of rear output gear component II, the two rotates the emergency steering pump direct connection at the same speed；
It is counter to drag by the rotation of wheel itself when source or the Main Hydraulic Pump failure of running out of steam suddenly in vehicle driving process
Steering pump of meeting an urgent need rotates, and supplements power source for steering system, vehicle is made to have certain steering capability, guarantees vehicle safety stop phase
To safety zone.
10. a kind of articulated truck, for the vehicle with forward and backward vehicle frame and articulated body, it is characterised in that: including claim
1 to 9 described in any item auxiliary box structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820906881.7U CN208393120U (en) | 2018-06-12 | 2018-06-12 | A kind of auxiliary box structure and articulated truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820906881.7U CN208393120U (en) | 2018-06-12 | 2018-06-12 | A kind of auxiliary box structure and articulated truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208393120U true CN208393120U (en) | 2019-01-18 |
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ID=65135800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820906881.7U Active CN208393120U (en) | 2018-06-12 | 2018-06-12 | A kind of auxiliary box structure and articulated truck |
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| CN (1) | CN208393120U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108819712A (en) * | 2018-06-12 | 2018-11-16 | 徐州徐工矿山机械有限公司 | Auxiliary box structure and articulated truck |
-
2018
- 2018-06-12 CN CN201820906881.7U patent/CN208393120U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108819712A (en) * | 2018-06-12 | 2018-11-16 | 徐州徐工矿山机械有限公司 | Auxiliary box structure and articulated truck |
| CN108819712B (en) * | 2018-06-12 | 2024-05-14 | 徐州徐工矿业机械有限公司 | Transfer case structure and articulated dumper |
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