CN108049452A - A kind of wheel excavator and its walking forward method - Google Patents
A kind of wheel excavator and its walking forward method Download PDFInfo
- Publication number
- CN108049452A CN108049452A CN201810031783.8A CN201810031783A CN108049452A CN 108049452 A CN108049452 A CN 108049452A CN 201810031783 A CN201810031783 A CN 201810031783A CN 108049452 A CN108049452 A CN 108049452A
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- hinged
- rear axle
- body frame
- hinge bar
- stand
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/225—Control of steering, e.g. for hydraulic motors driving the vehicle tracks
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/2257—Vehicle levelling or suspension systems
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)
- Automatic Cycles, And Cycles In General (AREA)
Abstract
The present invention relates to a kind of wheel excavator and its walking forward methods, belong to the technical field for excavating heavy industry machinery, and device includes walking chassis；Walking chassis includes body frame, and body frame both ends are equipped with front axle bracket and rear axle stand, and front axle bracket is equipped with preceding bridge, and rear axle stand is equipped with rear axle；Front axle bracket is connected by preceding vertical shaft with body frame, and rear axle stand is connected by rear vertical shaft with body frame；Body frame is equipped with steering cylinder, front rod, hinge bar, back link, and cylinder barrel one end of steering cylinder is connected with body frame, and piston rod one end and the front axle bracket of steering cylinder are hinged；Front rod one end is hinged with front axle bracket, and the front rod other end is hinged with hinge bar one end；The hinge bar other end is hinged with back link one end, and the back link other end is hinged with rear axle stand；It is hinged among hinge bar with body frame.This programme only can realize the steering of wheel excavator by 1 oil cylinder, and front and rear drive axle is made to turn to simultaneously, and radius of turn is small, and operation is flexible.
Description
Technical field
The present invention relates to a kind of wheel excavator and its walking forward methods, belong to the technical field for excavating heavy industry machinery.
Background technology
Common wheel excavator is by walking chassis, equipment, upper turntable, power set, hydraulic system, operation dress
It puts, swing mechanism, transmission mechanism etc..Wheel excavator on the market is that preceding bridge realizes that vehicle turns for steering and driving axle mostly now
It is curved with waving, steering and driving axle is complicated, high failure rate, of high cost, and radius of turn is big, dumb.Also have one on the market
Kind is respectively mounted with 1 hydraulic motor, 4 liquid by the wheel excavator of 4 fluid motor-drivens in preceding bridge and rear axle end positions
Pressure motor is different by oil inlet direction and realizes and advances, retreats, turning to, and 4 motors rotate forward during advance, 4 motors during retrogressing
Back rotation, during left steering, two, left side motor back rotation, right then two motors rotate forward, during right turn, two, right side
Motor back rotation, two, left side motor rotate forward, and this structure manufactures the oil that of high cost and 4 hydraulic motors are assigned to
It is different, it may appear that walking is asynchronous, can not guarantee straight line moving.
The content of the invention
In view of the deficiencies of the prior art, the present invention provides a kind of wheel excavator.
The present invention also provides the walking forward methods of above-mentioned excavator.
Term is explained：Preceding bridge and the general designation name that rear axle is mechanical transmission fields in the application, existing wheel excavator
Preceding bridge is steering and driving axle, and the preceding bridge of wheel excavator of the present invention is drive axle, without turning function.
Technical scheme is as follows：
A kind of wheel excavator, including walking chassis；
Walking chassis includes body frame, and body frame both ends are equipped with front axle bracket and rear axle stand, and front axle bracket is equipped with preceding bridge, on rear axle stand
Equipped with rear axle；Front axle bracket is connected by preceding vertical shaft with body frame, and rear axle stand is connected by rear vertical shaft with body frame；
Body frame is equipped with steering cylinder, front rod, hinge bar, back link, and cylinder barrel one end of steering cylinder is connected with body frame,
Piston rod one end and the front axle bracket of steering cylinder are hinged；Front rod one end is hinged with front axle bracket, the front rod other end and hinge bar
One end is hinged；The hinge bar other end is hinged with back link one end, and the back link other end is hinged with rear axle stand；It is among hinge bar and main
Frame is hinged.
When steering cylinder stretches, front axle bracket rotation is driven, while front rod hair has also been driven by hinged front rod
Life moves forward and backward, and by hinged hinge bar, back link is driven to move forward and backward, different with rear axle stand so as to fulfill front axle bracket
Direction of rotation, realize turn inside diameter.
It is preferred according to the present invention, front rod and the hinged position of front axle bracket and piston rod one end of steering cylinder and preceding bridge
The hinged position of frame overlaps.When the piston rod of steering cylinder is by stretching to control the rotation of front axle bracket, front rod can be saved
Reaction time.
It is further preferred that steering cylinder and front rod be not in same level.
Preferred according to the present invention, front rod, hinge bar, back link are located at the same of front axle bracket and the rear axle stand line of centres
Side.When current connecting rods act on, by hinge bar, back link effect is driven, front rod and back link act on the bridge of the same side
On frame.
Preferred according to the present invention, distance of the hinge bar apart from front axle bracket is less than distance of the hinge bar apart from rear axle stand.It will
Hinge bar is placed on front to avoid intermediate transmission case and transmission shaft.
It is preferred according to the present invention, it is hinged among hinge bar by hinge bar axis with body frame, hinge bar axis is radially set
There is footstalk.Around hinge bar central axis, footstalk is used for fixing hinge bar axis, avoiding moving up and down hinge bar.
Including walking chassis, turntable and operating device are equipped with above walking chassis for a kind of wheel excavator；
Walking chassis includes body frame, and body frame both ends are equipped with front axle bracket and rear axle stand, and front axle bracket is equipped with preceding bridge, on rear axle stand
Equipped with rear axle and rocking carrier, rocking carrier is arranged in parallel with rear axle stand；Front axle bracket is hinged by preceding vertical shaft with body frame, and rocking carrier passes through
Vertical shaft is hinged with body frame afterwards；Rocking carrier can only rotate in body frame horizontal plane, the rotation of vertical plane does not occur；Rocking carrier side
Face is equipped with connecting shaft, and rear axle stand is hinged by connecting shaft and rocking carrier, and connecting shaft axis is parallel with direct of travel；Rear axle stand can be around
Relative rotation in vertical plane occurs with rocking carrier for connecting shaft；
Body frame is equipped with steering cylinder, front rod, hinge bar, back link, and cylinder barrel one end and the body frame of steering cylinder are hinged,
Piston rod one end and the front axle bracket of steering cylinder are hinged；Front rod one end is hinged with front axle bracket, the front rod other end and hinge bar
One end is hinged；The hinge bar other end is hinged with back link one end, and the back link other end is hinged with rocking carrier；It is among hinge bar and main
Frame is hinged.
The program had not only contained the steering structure of walking chassis, but also had increased on rear axle stand compared to aforementioned schemes
Swinging structure, optimizes whole synthesis performance.
Preferred according to the present invention, rocking carrier on both sides of the middle is arranged with two connecting shafts, and two connecting shafts are and rear axle
Frame is hinged, and rear vertical shaft is vertical in the rocking carrier between two connecting shafts.Rear axle stand can around rocking carrier two connecting shafts with
Relative rotation in vertical plane occurs for rocking carrier.Two connecting shafts are set to, are because would generally rear vertical shaft be located at interposition
It puts, in order to which rear vertical shaft is passed through from centre, is processed integrally with rocking carrier so setting two connecting shafts, center section reserves rear vertical shaft
The space passed through.
It is further preferred that rear axle stand both sides are arranged with two axle bed a, axle bed b, rocking carrier are respectively provided with above axle bed a
Two connecting shafts be hinged respectively with two axle bed a.Axle bed a is set to one with rear axle stand, after connecting shaft is put into axle bed a,
It is closed by independent axle bed b and wraps connecting shaft above axle bed a, together with axle bed a, rear axle stand is around rocking carrier connecting shaft
Rotation.
It is further preferred that being equipped with wear-resistant sleeve A and wear-resistant sleeve B between axle bed a, axle bed b and connecting shaft, contacted compared with increasing
The small bearing ball of area can more improve service life using wear-resistant sleeve；Wear-resistant sleeve C is equipped between rocking carrier and rear vertical shaft.
When vertical rotation occurs for rear axle stand and connecting shaft, rocking carrier is rotated with rear vertical shaft occurred level, wear-resistant sleeve can effectively avoid, subtract
Slow hardware damage.
It is more than and waves it is further preferred that rear axle stand includes the distance between symmetrically arranged two risers, two risers
The width of frame, rocking carrier are arranged between two risers of rear axle stand.During installation, rear axle stand is socketed on the outside of rocking carrier, and two vertical
Plate and the corresponding position of rocking carrier open up through hole, are set between the rear axle stand riser and rocking carrier of one side there are one connecting shaft；Separately
Another connecting shaft is equipped between the rear axle stand riser and rocking carrier of one side.Symmetrically arranged riser and separated two connecting shafts
For rear vertical shaft slot milling, it is hinged after not influencing in vertical shaft insertion rocking carrier with rocking carrier, in the horizontal plane occurred on rear vertical shaft
Rotation and connecting shaft on rotation in the vertical plane that occurs be independent of each other.
It is further preferred that one side is equipped with intermediate support plate between two risers.Intermediate support plate is used to enhance rear axle stand
Bonding strength between separated two risers.
It is further preferred that the axis of two connecting shafts of rocking carrier and the line at front axle bracket rear axle stand center are respectively positioned on together
In one vertical plane.With this, rear axle stand is steadily balanced when around two connecting shaft rotations of rocking carrier.
It is further preferred that the both ends of rocking carrier are symmetrically respectively provided with an oscillating cylinder, two oscillating cylinders wave for a left side
Oil cylinder and right oscillating cylinder, the cylinder barrel end of oscillating cylinder are connected with rocking carrier, and the piston end of oscillating cylinder is contacted with rear axle stand.Afterwards
When crane span structure rotates in vertical plane, the piston of the oscillating cylinder at both ends can move up and down therewith.
It is further preferred that two oscillating cylinders are connected with hydraulic system.The oil circuit of two oscillating cylinders can be by hydraulic pressure system
Control valve of uniting controls, and when excavator is when carrying out digging operation, the oil circuit of locked two oscillating cylinders makes its piston rod that can not move
Dynamic, the piston rod of two oscillating cylinders withstands rear axle stand, and the components such as rear axle stand and tire is made no longer to swing, so ensure that excavation
Smooth operations during operation.
It is as follows that a kind of walking forward method using above-mentioned wheel excavator includes step：
During left-hand bend, according to turning size, it is specified that steering wheel steering gear can control steering cylinder piston rod to be inwardly recycled to
Position, steering cylinder piston receive bottom, and the angle of left-hand bend is maximum, and while steering cylinder piston rod recycles, front axle bracket can be by
The pulling force of steering cylinder rotates counterclockwise around preceding vertical shaft, and front rod generates rearward displacement, and hinge bar is driven to rotate clockwise, so as to
Drive back link that anterior displacement occurs, back link pulls rear axle stand to be rotated clockwise around rear vertical shaft, completes left-hand bend posture；
During right-hand bend, according to turning size, it is specified that steering wheel steering gear can control steering cylinder piston rod to protrude outwardly to
Position, steering cylinder piston go out to the end, and the angle of right-hand bend is maximum, and while steering cylinder piston rod stretches out, front axle bracket can be by
The thrust of steering cylinder is rotated clockwise around preceding vertical shaft, and front rod generates anterior displacement, and hinge bar is driven to rotate counterclockwise, so as to
Drive back link that rearward displacement occurs, back link pulls rear axle stand to be rotated counterclockwise around rear vertical shaft, completes right-hand bend posture.
The beneficial effects of the present invention are：
Technical scheme only can realize the steering of wheel excavator by 1 oil cylinder, make front and rear drive axle
It turns to simultaneously, radius of turn is small, and operation is flexible.Bridge turns to simultaneously with rear axle before the present invention realizes, and steering angle is small, turns to half
Footpath is small.And bridge is chiefly used in steeraxle steering before existing wheel excavator, only preceding bridge turns to, and rear axle does not rotate, so turning
Radius is big, and narrow space is turned dumb.
The structure setting of technical scheme can the wheel excavator based on current all models, structure be easy to plus
Dress does not influence the mechanical performance of original equipment.
The swinging structure of the present invention, can make rear axle that can also vertically turn around transverse axis while being horizontally diverted around vertical shaft
It is dynamic, it realizes the swing function of rear axle, reaches excavator in the different road surface walking of height, realize supported at three point, prevent from tumbling.
In addition, in excavator excacation, the left and right oscillating cylinder oil circuit ganged up originally is disconnected using control valve, it is left and right to wave
Oil inside oil cylinder is had nowhere to go, and the piston rod of left and right oscillating cylinder no longer moves, and firmly withstands rear axle stand, rear axle stand by
The power of left and right swinging cylinder and no longer rotate upwardly and downwardly, the tire force on 4 angular ranges of body frame is uniform, ensure that excavator excavate
When stability.
Description of the drawings
Fig. 1 is wheel excavator vehicle schematic diagram provided by the invention；
Fig. 2 is walking chassis dimensional structure diagram of the present invention；
Fig. 3 is front axle bracket of the present invention and preceding bridge assembling schematic diagram；
Fig. 4 a assemble dimensional structure diagram for body frame of the present invention and front rod, hinge bar, back link；Fig. 4 b are the present invention
Body frame and front rod, hinge bar, back link assembling elevational schematic view；
Fig. 5 a are the assembling structure schematic front view of rear axle stand of the present invention and rocking carrier；Fig. 5 b are rear axle stand of the present invention with shaking
The assembling structure schematic top plan view of rocker；Fig. 5 c are the CC of Fig. 5 b to sectional view；Fig. 5 d are the AA of Fig. 5 a to sectional view；Fig. 5 e are
Enlarged drawing in Fig. 5 d at B；Fig. 5 f are the assembling structure stereoscopic schematic diagram of rear axle stand of the present invention and rocking carrier；Fig. 5 g tie for Fig. 5 c
Schematic diagram under the swinging condition of structure；
Fig. 6 is rear axle stand of the present invention and rear axle assembling schematic diagram；
Fig. 7 a are rocking carrier schematic front view；Fig. 7 b are rocking carrier schematic top plan view；Fig. 7 c are rocking carrier stereoscopic schematic diagram；
Fig. 7 d are oscillating cylinder structure diagram；
Fig. 8 a are elevational schematic view after walking chassis installation；Fig. 8 b are schematic top plan view after walking chassis installation；Fig. 8 c are
Stereoscopic schematic diagram after walking chassis installation；Fig. 8 d be in Fig. 8 b AA to sectional view；Fig. 8 e are the partial enlargement at the B in Fig. 8 d
Figure；
Fig. 9 a are elevational schematic view under walking chassis straight-going state；Fig. 9 b are that main view is illustrated under walking chassis straight-going state
Figure；Fig. 9 c are schematic top plan view under walking chassis straight-going state；Fig. 9 d are stereoscopic schematic diagram under walking chassis straight-going state；Fig. 9 e
For schematic side view under walking chassis straight-going state；
Figure 10 a are elevational schematic view under walking chassis left steering state；Figure 10 b are main view under walking chassis left steering state
Schematic diagram；Figure 10 c are schematic top plan view under walking chassis left steering state；Figure 10 d are three-dimensional under walking chassis left steering state
Schematic diagram；Figure 10 e are schematic side view under walking chassis left steering state；
Figure 11 a are elevational schematic view under walking chassis right turn state；Figure 11 b are main view under walking chassis right turn state
Schematic diagram；Figure 11 c are schematic top plan view under walking chassis right turn state；Figure 11 d are three-dimensional under walking chassis right turn state
Schematic diagram；Figure 11 e are schematic side view under walking chassis right turn state；
Elevational schematic view is waved on a rear axle left side when Figure 12 a walk for walking chassis；Rear axle is left when Figure 12 b walk for walking chassis
Wave schematic front view；Schematic top plan view is waved on a rear axle left side when Figure 12 c walk for walking chassis；Figure 12 d walk for walking chassis
Shi Houqiao waves stereoscopic schematic diagram in a left side；Schematic side view is waved on a rear axle left side when Figure 12 e walk for walking chassis；
Elevational schematic view is waved on the rear axle right side when Figure 13 a walk for walking chassis；Rear axle is right when Figure 13 b walk for walking chassis
Wave schematic front view；Schematic top plan view is waved on the rear axle right side when Figure 13 c walk for walking chassis；Figure 13 d walk for walking chassis
Shi Houqiao waves stereoscopic schematic diagram in the right side；Schematic side view is waved on the rear axle right side when Figure 13 e walk for walking chassis；
Figure 14 is rear axle stand structure diagram；
Wherein：100th, walking chassis, 200, transmission mechanism, 300, swing mechanism, 400, upper turntable, 500, hydraulic system,
600th, power set, 700, operating device, 800, equipment；
1st, body frame, 2, front axle bracket, 3, rear axle stand, 4, rocking carrier, 5, dozer, 6, dozer oil cylinder, 7, steering cylinder, 8,
Left oscillating cylinder, 9, right oscillating cylinder, 10, front rod, 11, hinge bar, 12, back link, 13, rear axle, 14, preceding bridge, 15, wear-resisting
Cover A, 16, wear-resistant sleeve B, 17, wear-resistant sleeve C, 18, axle bed b, 19, axle bed a, 20, riser, 21, intermediate support plate；
A：Preceding vertical shaft, B：Vertical shaft afterwards, C：Steering cylinder, front rod front axle, D：Front rod rear axle, E：Hinge bar axis, F：
Back link front axle, G：Steering cylinder rear axle, H：Back link rear axle, J：The connecting shaft of rear axle stand and rocking carrier.
Specific embodiment
The present invention will be further described by way of example and in conjunction with the accompanying drawings, but not limited to this.
Embodiment 1：
A kind of wheel excavator including walking chassis 100, is equipped with upper turntable 400, operating device 700 above walking chassis
Wait conventional equipments, such as Fig. 1.
Walking chassis includes body frame 1, and 1 both ends of body frame are equipped with front axle bracket 2 and rear axle stand 3, and front axle bracket 2 is equipped with preceding bridge 14,
Rear axle stand 3 is equipped with rear axle 13；Front axle bracket 2 is connected by preceding vertical shaft A with body frame 1, and rear axle stand is connected by rear vertical shaft with body frame.
Body frame 1 is equipped with steering cylinder 7, front rod 10, hinge bar 11, back link 12, and cylinder barrel one end of steering cylinder 7 leads to
It crosses steering cylinder rear axle G to be connected with body frame 1, piston rod one end of steering cylinder 7 and front axle bracket 2 are hinged；10 one end of front rod with
Front axle bracket 2 is hinged, and 10 other end of front rod is hinged by front rod rear axle D and 11 one end of hinge bar；11 other end of hinge bar leads to
Later connecting rod front axle F is hinged with 12 one end of back link, and the back link other end is hinged with rear axle stand；By hinged among hinge bar 11
Bar axis E and body frame 1 are hinged, and hinge bar axis is radially provided with footstalk, such as the transverse bar being connected in Fig. 4 b with hinge bar axis E,
Around hinge bar central axis, footstalk is used for fixing hinge bar axis, avoiding moving up and down hinge bar.
When steering cylinder stretches, front axle bracket rotation is driven, while front rod hair has also been driven by hinged front rod
Life moves forward and backward, and by hinged hinge bar, back link is driven to move forward and backward, different with rear axle stand so as to fulfill front axle bracket
Direction of rotation, realize turn inside diameter.
Embodiment 2：
A kind of wheel excavator, structure as described in Example 1, the difference is that front rod and the hinged position of front axle bracket
The position hinged with front axle bracket with piston rod one end of steering cylinder is put to overlap, in Fig. 8 b, the work of front rod and steering cylinder
Stopper rod one end is hinged in same position by steering cylinder, front rod front axle C and front axle bracket.When the piston rod of steering cylinder leads to
It crosses when stretching to control the rotation of front axle bracket, the reaction time of front rod can be saved.
Embodiment 3：
A kind of wheel excavator, structure as described in Example 1, the difference is that steering cylinder with front rod not same
In one horizontal plane.As shown in Fig. 8 a, Fig. 8 b, the two has the staggered floor distribution on horizontal plane direction, to avoid the transmission that influences each other.
Embodiment 4：
A kind of wheel excavator, structure as described in Example 1, the difference is that front rod, hinge bar, back link position
In the same side of front axle bracket and the rear axle stand line of centres, as shown in Figure 8 a, the upper side being all located in Fig. 8 a.Current connecting rods
During effect, by hinge bar, back link effect is driven, front rod and back link are acted on the crane span structure of the same side.
Embodiment 5：
A kind of wheel excavator, structure as described in Example 1, the difference is that distance of the hinge bar apart from front axle bracket
Less than distance of the hinge bar apart from rear axle stand, hinge bar is placed on front to avoid the structures such as intermediate transmission case and transmission shaft.
Embodiment 6：
A kind of wheel excavator including walking chassis 100, is equipped with upper turntable 400, operating device 700 above walking chassis
Wait conventional equipments, such as Fig. 1.
Walking chassis 100 includes body frame 1, and 1 both ends of body frame are equipped with front axle bracket 2 and rear axle stand 3, and front axle bracket 2 is equipped with preceding bridge
14, rear axle stand 3 is equipped with rear axle 13 and rocking carrier 4, and rocking carrier 4 is arranged in parallel with rear axle stand 3；Front axle bracket 2 by preceding vertical shaft A with
Body frame 1 connects, and rocking carrier 4 is connected by rear upright shaft B with body frame 1, as shown in Figure 8 b.Rocking carrier only can be in body frame horizontal plane
Rotation, the rotation that vertical plane does not occur；4 side of rocking carrier is equipped with connecting shaft, and rear axle stand 3 is cut with scissors by connecting shaft and rocking carrier 4
It connects, connecting shaft axis is parallel with direct of travel；Relative rotation in vertical plane can occur around connecting shaft and rocking carrier for rear axle stand.
Body frame 1 is equipped with steering cylinder 7, front rod 10, hinge bar 11, back link 12, and cylinder barrel one end of steering cylinder 7 leads to
It crosses steering cylinder rear axle G to be connected with body frame 1, piston rod one end and 10 one end of front rod of steering cylinder 7 pass through steering oil
Cylinder, front rod front axle C and front axle bracket 2 are hinged, front rod 10 and the hinged position of front axle bracket 2 and the piston rod one of steering cylinder 7
The end position hinged with front axle bracket 2 overlaps, as shown in Figure 8 b.10 other end of front rod passes through front rod rear axle D and hinge bar one
End is hinged；The hinge bar other end is hinged by back link front axle F and back link one end, and the back link other end passes through back link rear axle
H is hinged with rocking carrier 4；It is hinged by hinge bar axis E and body frame 1 among hinge bar 11.
Embodiment 7：
A kind of wheel excavator, structure as described in Example 6, the difference is that 4 on both sides of the middle of rocking carrier is arranged with
Two connecting shafts J, two connecting shaft J are hinged with rear axle stand 3, and rear upright shaft B is vertical at the rocking carrier between two connecting shaft J
In 4, as figure 8 e shows.Fig. 5 e are also the assembling structure schematic diagram of rocking carrier and rear axle stand, simply only show rocking carrier in Fig. 5 e
How to be assembled with rear axle stand, be not equipped with rear upright shaft B.Rear axle stand can occur to erect around two connecting shafts of rocking carrier with rocking carrier
Relative rotation into plane.Two connecting shafts are set to, are because would generally rear vertical shaft be located at centre position, for rear vertical shaft
It passes through, is processed integrally with rocking carrier so setting two connecting shafts, center section reserves the space that rear vertical shaft passes through from centre.
Embodiment 8：
A kind of wheel excavator, structure as described in Example 7, the difference is that 3 both sides of rear axle stand are arranged with two
19 top of axle bed a19, axle bed a is respectively provided with axle bed b 18, and two connecting shaft J of rocking carrier 4 are cut with scissors respectively with two axle bed a 19
It connects.Axle bed a and rear axle stand are set to one, after connecting shaft is put into axle bed a, closed by independent axle bed b above axle bed a,
Connecting shaft is wrapped with together with axle bed a, rear axle stand is rotated around rocking carrier connecting shaft.
Embodiment 9：
A kind of wheel excavator, structure as described in Example 8, the difference is that axle bed a, axle bed b and connecting shaft J it
Between be equipped with wear-resistant sleeve A 15 and wear-resistant sleeve B 16, compared with increasing the small bearing ball of contact area, can more be carried using wear-resistant sleeve
High service life；Wear-resistant sleeve C 17 is equipped between rocking carrier 4 and rear upright shaft B.It vertically rotates in the generation of rear axle stand and connecting shaft, shake
When rocker is rotated with rear vertical shaft occurred level, wear-resistant sleeve can effectively avoid, slow down hardware damage.
Embodiment 10：
A kind of wheel excavator, structure as described in Example 9, the difference is that rear axle stand 3 include symmetrically arranged two
The distance between a riser 20, two risers are more than the width of rocking carrier 4, and rocking carrier 4 is arranged between two risers of rear axle stand,
As shown in figure 5f.During installation, rear axle stand is socketed on rocking carrier outside, and two risers and the corresponding position of rocking carrier open up logical
Hole is set between the rear axle stand riser and rocking carrier of one side there are one connecting shaft；Between the rear axle stand riser and rocking carrier of opposite side
Equipped with another connecting shaft.Symmetrically arranged riser and separated two connecting shafts are rear vertical shaft slot milling, are stood after not influencing
It is hinged in axis insertion rocking carrier with rocking carrier, the rotation in horizontal plane occurred on rear vertical shaft and the vertical plane occurred in connecting shaft
Interior rotation is independent of each other.
Embodiment 11：
A kind of wheel excavator, structure as described in Example 10, the difference is that one side is equipped between two risers 20
Intermediate support plate 21 for enhancing the bonding strength between separated two risers of rear axle stand, as shown in Fig. 6, Figure 14, and waves
Frame also reserves the space of intermediate support plate in corresponding position, such as right side in Fig. 7 a, relatively narrow below the crossbeam is intermediate support plate
Position.
Embodiment 12：
A kind of wheel excavator, structure as described in Example 10, the difference is that the axis of two connecting shafts of rocking carrier
Line and the line at front axle bracket rear axle stand center are respectively positioned in same vertical plane, are all located at middle.
Embodiment 13：
A kind of wheel excavator, structure as described in Example 6, the difference is that the both ends of rocking carrier are symmetrically respectively provided with
One oscillating cylinder, two oscillating cylinders are left oscillating cylinder 8 and right oscillating cylinder 9, the cylinder barrel end of oscillating cylinder and rocking carrier
Connection, the piston end of oscillating cylinder are contacted with rear axle stand.When rear axle stand rotates in vertical plane, the piston of the oscillating cylinder at both ends
It can move up and down therewith, as shown in fig. 5g.Two oscillating cylinders are connected with hydraulic system.The oil circuit of two oscillating cylinders can be by liquid
Press system control valve control, when excavator is when carrying out digging operation, the oil circuit of locked two oscillating cylinders, make its piston rod without
Method moves, and the piston rod of two oscillating cylinders withstands rear axle stand, the components such as rear axle stand and tire is made no longer to swing, so ensure that
Smooth operations during digging operation.
In the process of moving, left oscillating cylinder is communicated with the oil circuit of right oscillating cylinder intracavitary, and left oscillating cylinder is waved with the right side
Oil cylinder moves freely, thus rear axle tire run into be uneven road surface when, rear axle tire can drive rear axle and rear axle stand simultaneously
It is rotated in connecting shaft J vertical planes, one ensure that the stationarity of vehicle, and two ensure that the passability of vehicle, and swinging condition is such as
Figure 12 a- Figure 13 e.
In digging operation, left oscillating cylinder and the oil circuit of right oscillating cylinder intracavitary disconnect, and left oscillating cylinder is waved with the right side
Oil cylinder locks, and firmly withstands rear axle stand, and rear axle and tire are no longer swung, so ensure that smooth operations during digging operation, such as
Fig. 5 c.
Embodiment 14：
It is as follows that a kind of walking forward method using wheel excavator described in embodiment 1 includes step：
During left-hand bend, according to turning size, it is specified that steering wheel steering gear can control steering cylinder piston rod to be inwardly recycled to
Position, steering cylinder piston receive bottom, and the angle of left-hand bend is maximum, and while steering cylinder piston rod recycles, front axle bracket can be by
The pulling force of steering cylinder rotates counterclockwise around preceding vertical shaft, and front rod generates rearward displacement, and hinge bar is driven to rotate clockwise, so as to
Drive back link that anterior displacement occurs, back link pulls rear axle stand to be rotated clockwise around rear vertical shaft, completes left-hand bend posture；Such as figure
10a- Figure 10 e.
During right-hand bend, according to turning size, it is specified that steering wheel steering gear can control steering cylinder piston rod to protrude outwardly to
Position, steering cylinder piston go out to the end, and the angle of right-hand bend is maximum, and while steering cylinder piston rod stretches out, front axle bracket can be by
The thrust of steering cylinder is rotated clockwise around preceding vertical shaft, and front rod generates anterior displacement, and hinge bar is driven to rotate counterclockwise, so as to
Drive back link that rearward displacement occurs, back link pulls rear axle stand to be rotated counterclockwise around rear vertical shaft, completes right-hand bend posture.Such as figure
11a- Figure 11 e.
When normal straight is walked, steering wheel steering gear can control steering cylinder piston rod to go out to corresponding position, no longer move
It is dynamic, front axle bracket and rear axle stand keeping parallelism, and it is vertical with body frame center line (preceding vertical shaft A is connected to center line with rear upright shaft B), this
Shi Shixian straight line movings, straight line moving state such as Fig. 9 a- Fig. 9 e.
Claims (10)
1. a kind of wheel excavator, including walking chassis, it is characterised in that：
Walking chassis includes body frame, and body frame both ends are equipped with front axle bracket and rear axle stand, and front axle bracket is equipped with preceding bridge, and rear axle stand is equipped with
Rear axle；Front axle bracket is connected by preceding vertical shaft with body frame, and rear axle stand is connected by rear vertical shaft with body frame；
Body frame is equipped with steering cylinder, front rod, hinge bar, back link, and cylinder barrel one end of steering cylinder is connected with body frame, turns to
Piston rod one end and the front axle bracket of oil cylinder are hinged；Front rod one end is hinged with front axle bracket, the front rod other end and hinge bar one end
It is hinged；The hinge bar other end is hinged with back link one end, and the back link other end is hinged with rear axle stand；It is cut with scissors among hinge bar with body frame
It connects.
2. wheel excavator according to claim 1, which is characterized in that front rod and the hinged position of front axle bracket and steering
The position that piston rod one end of oil cylinder is hinged with front axle bracket overlaps；
Preferably, steering cylinder and front rod be not in same level.
3. wheel excavator according to claim 1, which is characterized in that front rod, hinge bar, back link are located at front axle bracket
With the same side of the rear axle stand line of centres.
4. wheel excavator according to claim 1, which is characterized in that distance of the hinge bar apart from front axle bracket is less than hinged
Distance of the bar apart from rear axle stand；
Preferably, it is hinged among hinge bar by hinge bar axis with body frame, hinge bar axis is radially provided with footstalk.
5. a kind of wheel excavator, including walking chassis, it is characterised in that：
Walking chassis includes body frame, and body frame both ends are equipped with front axle bracket and rear axle stand, and front axle bracket is equipped with preceding bridge, and rear axle stand is equipped with
Rear axle and rocking carrier, rocking carrier are arranged in parallel with rear axle stand；Front axle bracket is connected by preceding vertical shaft with body frame, and rocking carrier passes through rear vertical
Axis is connected with body frame；Rocking carrier side is equipped with connecting shaft, and rear axle stand is hinged by connecting shaft and rocking carrier, connecting shaft axis and row
It is parallel into direction；
Body frame is equipped with steering cylinder, front rod, hinge bar, back link, and cylinder barrel one end of steering cylinder is connected with body frame, turns to
Piston rod one end and the front axle bracket of oil cylinder are hinged；Front rod one end is hinged with front axle bracket, the front rod other end and hinge bar one end
It is hinged；The hinge bar other end is hinged with back link one end, and the back link other end is hinged with rocking carrier；It is cut with scissors among hinge bar with body frame
It connects.
6. wheel excavator according to claim 5, which is characterized in that rocking carrier on both sides of the middle is arranged with two connections
Axis, two connecting shafts are hinged with rear axle stand, and rear vertical shaft is vertical in the rocking carrier between two connecting shafts；
Preferably, rear axle stand both sides are arranged with two axle bed a, and axle bed b, two connections of rocking carrier are respectively provided with above axle bed a
Axis is hinged respectively with two axle bed a；
It is further preferred that wear-resistant sleeve A and wear-resistant sleeve B is equipped between axle bed a, axle bed b and connecting shaft；Rocking carrier and rear vertical shaft it
Between be equipped with wear-resistant sleeve C.
7. wheel excavator according to claim 6, which is characterized in that rear axle stand includes symmetrically arranged two risers,
The distance between two risers are more than the width of rocking carrier, and rocking carrier is arranged between two risers of rear axle stand；
Preferably, one side is equipped with intermediate support plate between two risers.
8. wheel excavator according to claim 6, which is characterized in that the axis of two connecting shafts of rocking carrier and preceding bridge
The line at frame rear axle stand center is respectively positioned in same vertical plane.
9. wheel excavator according to claim 5, which is characterized in that the both ends of rocking carrier are symmetrically respectively provided with one and wave
Oil cylinder, two oscillating cylinders are left oscillating cylinder and right oscillating cylinder, and the cylinder barrel end of oscillating cylinder is connected with rocking carrier, waves oil
The piston end of cylinder is contacted with rear axle stand；
Preferably, two oscillating cylinders are connected with hydraulic system.
10. a kind of walking forward method using wheel excavator described in claim 1-9 any one claims, including step
It is rapid as follows：
During left-hand bend, steering wheel steering gear control steering cylinder piston rod is inwardly recycled to designated position, steering cylinder piston rod
While recycling, front axle bracket is rotated counterclockwise by the pulling force of steering cylinder around preceding vertical shaft, and front rod generates rearward displacement, drives hinge
Extension bar rotates clockwise, and so as to drive back link that anterior displacement occurs, back link pulls rear axle stand to be rotated clockwise around rear vertical shaft,
Complete left-hand bend posture；
During right-hand bend, steering wheel steering gear control steering cylinder piston rod protrudes outwardly to designated position, steering cylinder piston rod
While stretching, front axle bracket is rotated clockwise by the thrust of steering cylinder around preceding vertical shaft, and front rod generates anterior displacement, drives hinge
Extension bar rotates counterclockwise, and so as to drive back link that rearward displacement occurs, back link pulls rear axle stand to be rotated counterclockwise around rear vertical shaft,
Complete right-hand bend posture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810031783.8A CN108049452B (en) | 2018-01-12 | 2018-01-12 | Wheel type excavator and walking steering method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810031783.8A CN108049452B (en) | 2018-01-12 | 2018-01-12 | Wheel type excavator and walking steering method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108049452A true CN108049452A (en) | 2018-05-18 |
| CN108049452B CN108049452B (en) | 2023-03-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810031783.8A Active CN108049452B (en) | 2018-01-12 | 2018-01-12 | Wheel type excavator and walking steering method thereof |
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| Country | Link |
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| CN (1) | CN108049452B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060113749A1 (en) * | 2004-11-29 | 2006-06-01 | Deere & Company, A Delaware Corporation. | Articulated dozer with frame structure for decreased height variation in the vehicle chassis |
| CN202247974U (en) * | 2011-09-21 | 2012-05-30 | 杭州鑫鹿机械制造有限公司 | Double-bridge wheel type steering and double-bridge driving loader |
| CN202847856U (en) * | 2012-10-19 | 2013-04-03 | 山东犀牛工程机械有限公司 | Continuous track wheel type excavator |
| CN207749564U (en) * | 2018-01-12 | 2018-08-21 | 山东犀牛工程机械有限公司 | A kind of wheel excavator |
-
2018
- 2018-01-12 CN CN201810031783.8A patent/CN108049452B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060113749A1 (en) * | 2004-11-29 | 2006-06-01 | Deere & Company, A Delaware Corporation. | Articulated dozer with frame structure for decreased height variation in the vehicle chassis |
| CN202247974U (en) * | 2011-09-21 | 2012-05-30 | 杭州鑫鹿机械制造有限公司 | Double-bridge wheel type steering and double-bridge driving loader |
| CN202847856U (en) * | 2012-10-19 | 2013-04-03 | 山东犀牛工程机械有限公司 | Continuous track wheel type excavator |
| CN207749564U (en) * | 2018-01-12 | 2018-08-21 | 山东犀牛工程机械有限公司 | A kind of wheel excavator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108049452B (en) | 2023-03-14 |
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Effective date of registration: 20191216 Address after: 252512 south side of National Road 309, dingyuanzhai, Guanxian County, Liaocheng City, Shandong Province (in the yard of Shandong Kaidi power electromechanical Co., Ltd.) Applicant after: Shandong Kenshi Heavy Industry Machinery Co.,Ltd. Address before: 252512 Shandong Liaocheng Guanxian Dingyuan town rhinoceros Engineering Machinery Co., Ltd. Applicant before: SHANDONG RHINOCEROS ENGINEERING MACHINERY CO.,LTD. |
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