CN207749564U - A kind of wheel excavator - Google Patents
A kind of wheel excavator Download PDFInfo
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- CN207749564U CN207749564U CN201820052747.5U CN201820052747U CN207749564U CN 207749564 U CN207749564 U CN 207749564U CN 201820052747 U CN201820052747 U CN 201820052747U CN 207749564 U CN207749564 U CN 207749564U
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Abstract
The utility model is related to a kind of wheel excavator, belong to the technical field for excavating heavy industry machinery, 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 connect by preceding vertical shaft with body frame, and rear axle stand is connect 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 connect with body frame, and piston rod one end of steering cylinder and front axle bracket 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 with body frame among hinge bar.This programme only can realize the steering of wheel excavator by 1 oil cylinder, make front and back drive axle while turning to, and turning radius is small, and operation is flexible.
Description
Technical field
The utility model is related to a kind of wheel excavator, belong to the technical field for excavating heavy industry machinery.
Background technology
Common wheel excavator is by walking chassis, equipment, upper turntable, power plant, hydraulic system, operation dress
It sets, swing mechanism, transmission mechanism etc..It is that steering and driving axle realizes that vehicle turns that wheel excavator on the market, which is preceding bridge mostly, now
It is curved with wave, steering and driving axle is complicated, high failure rate, of high cost, and turning radius 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 hydraulic motors driving 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 when advance, 4 motors when retrogressing
Back rotation, when left steering, two, left side motor back rotation, right then two motors rotate forward, when right turn, two, right side
Motor back rotation, two, left side motor rotate forward, the oil that this structure manufacturing cost height and 4 hydraulic motors are assigned to
It is different, it may appear that walking is asynchronous, can not guarantee straight line moving.
Utility model content
In view of the deficiencies of the prior art, the utility model provides a kind of wheel 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 the utility model wheel excavator is drive axle, without turning function.
The technical solution of the utility model 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 connect by preceding vertical shaft with body frame, and rear axle stand is connect 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 connect with body frame,
Piston rod one end of steering cylinder is hinged with front axle bracket；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, to realize front axle bracket and rear axle stand difference
Direction of rotation, realize turn inside diameter.
It is preferred according to the utility model, piston rod one end of front rod and the hinged position of front axle bracket and steering cylinder with
The hinged position of front axle bracket overlaps.When the rotation that the piston rod of steering cylinder controls front axle bracket by stretching, before can saving
The reaction time of connecting rod.
It is further preferred that steering cylinder and front rod be not in same level.
Preferred according to the utility model, front rod, hinge bar, back link are located at front axle bracket and the rear axle stand line of centres
Same side.When current connecting rods act on, by hinge bar, back link effect is driven, front rod and back link act on the same side
Crane span structure on.
It is preferred according to the utility model, distance of the hinge bar apart from front axle bracket be less than hinge bar apart from rear axle stand away from
From.Hinge bar is placed on front to avoid intermediate transmission case and transmission shaft.
It is preferred according to the utility model, hinged by hinge bar axis and body frame among hinge bar, the diameter of axle in hinge bar
To equipped with footstalk.Around hinge bar central axis, footstalk is used for fixing hinge bar axis, avoiding moving up and down hinge bar.
A kind of wheel excavator, including walking chassis, walking chassis top are equipped with turntable and operating device；
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 and body frame, and rocking carrier passes through
Vertical shaft and body frame are hinged 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 direction 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 of steering cylinder and body frame are hinged,
Piston rod one end of steering cylinder is hinged with front axle bracket；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 not only contains the steering structure of walking chassis compared to aforementioned schemes, but also increases on rear axle stand
Swinging structure, optimizes whole synthesis performance.
Preferred according to the utility model, rocking carrier on both sides of the middle is arranged with two connecting shafts, two connecting shafts with
Rear axle stand is hinged, and rear vertical shaft is vertical in the rocking carrier between two connecting shafts.Rear axle stand can be around two connections of rocking carrier
Relative rotation in vertical plane occurs with rocking carrier for axis.Two connecting shafts are set as, are because of in would generally being located at rear vertical shaft
Between position, in order to which rear vertical shaft is passed through from centre, so it is integral to set the processing of two connecting shafts and rocking carrier, after middle section reserves
The space that vertical shaft passes 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 it is hinged with two axle bed a respectively.Axle bed a is set as one with rear axle stand, after connecting shaft is put into axle bed a,
It is closed by independent axle bed b and is wrapped above axle bed a, together with axle bed a by connecting shaft, 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 further preferred that rear axle stand includes symmetrically arranged two risers, the distance between two risers, which are more than, to wave
The width of frame, rocking carrier are set between two risers of rear axle stand.When 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 side there are one connecting shaft；Separately
Another connecting shaft is equipped between the rear axle stand riser and rocking carrier of side.Symmetrically arranged riser and separated two connecting shafts
For rear vertical shaft slot milling, vertical shaft is inserted into hinged with rocking carrier in rocking carrier after not influencing, 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 side is equipped with intermediate support plate between two risers.Intermediate support plate is for enhancing rear axle stand
Bonding strength between two risers of separation.
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
The cylinder barrel end of oil cylinder and right oscillating cylinder, oscillating cylinder is connect 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 connect 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 when operation.
A kind of walking forward method using above-mentioned wheel excavator includes that steps are as follows：
When left-hand bend, according to turning size, steering wheel steering gear can control steering cylinder piston rod be inwardly recycled to it is specified
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, 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；
When right-hand bend, according to turning size, steering wheel steering gear can control steering cylinder piston rod protrude outwardly to it is specified
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, 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 utility model are：
The technical solution of the utility model only can realize the steering of wheel excavator by 1 oil cylinder, make front and back drive
Dynamic bridge turns to simultaneously, and turning radius is small, and operation is flexible.Bridge turns to simultaneously with rear axle before the utility model realizes, and turns to angle
Small, turning radius 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, narrow space turning is dumb.
The structure setting of the technical solution of the utility model can be based on the wheel excavator of current all models, and structure is easy
In installation, the mechanical performance of original equipment is not influenced.
The swinging structure of the utility model can make rear axle can also be perpendicular around horizontal axis while being horizontally diverted around vertical shaft
To rotation, the swing function of rear axle is realized, reach excavator when the different road surface of height is walked, realize supported at three point, prevent
It tumbles.In addition, in excavator excacation, the left and right oscillating cylinder oil circuit ganged up originally is disconnected using control valve, left,
Oil inside right oscillating 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, after
Crane span structure is no longer rotated upwardly and downwardly by the power of left and right swinging cylinder, and the tire force on 4 angular ranges of body frame is uniform, ensure that excavation
Stability when machine excavates.
Description of the drawings
Fig. 1 is wheel excavator vehicle schematic diagram provided by the utility model；
Fig. 2 is the utility model walking chassis dimensional structure diagram；
Fig. 3 is the utility model front axle bracket and preceding bridge assembling schematic diagram；
Fig. 4 a are that the utility model body frame assembles dimensional structure diagram with front rod, hinge bar, back link；Fig. 4 b are this
Utility model body frame assembles elevational schematic view with front rod, hinge bar, back link；
Fig. 5 a are the assembling structure schematic front view of the utility model rear axle stand and rocking carrier；Fig. 5 b is after the utility model
The assembling structure schematic top plan view of crane span structure and rocking carrier；Fig. 5 c are the CC of Fig. 5 b to sectional view；Fig. 5 d are the AA of Fig. 5 a to section
Figure；Fig. 5 e are the enlarged drawing at B in Fig. 5 d；Fig. 5 f are the assembling structure solid signal of the utility model rear axle stand and rocking carrier
Figure；Fig. 5 g are the schematic diagram under the swinging condition of Fig. 5 c structures；
Fig. 6 is the utility model rear axle stand 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 structural schematic 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；
Figure 12 a are that elevational schematic view is waved on a rear axle left side when walking chassis is walked；Figure 12 b are that rear axle is left when walking chassis is walked
Wave schematic front view；Figure 12 c are that schematic top plan view is waved on a rear axle left side when walking chassis is walked；Figure 12 d walk for walking chassis
Shi Houqiao waves stereoscopic schematic diagram in a left side；Figure 12 e are that schematic side view is waved on a rear axle left side when walking chassis is walked；
Figure 13 a are that elevational schematic view is waved on the rear axle right side when walking chassis is walked；Figure 13 b are that rear axle is right when walking chassis is walked
Wave schematic front view；Figure 13 c are that schematic top plan view is waved on the rear axle right side when walking chassis is walked；Figure 13 d walk for walking chassis
Shi Houqiao waves stereoscopic schematic diagram in the right side；Figure 13 e are that schematic side view is waved on the rear axle right side when walking chassis is walked；
Figure 14 is rear axle stand structural schematic diagram；
Wherein：100, walking chassis, 200, transmission mechanism, 300, swing mechanism, 400, upper turntable, 500, hydraulic system,
600, power plant, 700, operating device, 800, equipment；
1, 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 implementation mode
The utility model is described further 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, walking chassis top are equipped with upper turntable 400, operating device 700
Equal 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 connect by preceding vertical shaft A with body frame 1, and rear axle stand is connect 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 is logical
It crosses steering cylinder rear axle G to connect 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 is logical
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 with hinge bar axis E in Fig. 4 b,
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, to realize front axle bracket and rear axle stand difference
Direction of rotation, realize turn inside diameter.
Walking forward method using wheel excavator described in embodiment 1 includes that steps are as follows：
When left-hand bend, according to turning size, steering wheel steering gear can control steering cylinder piston rod be inwardly recycled to it is specified
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, 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.
When right-hand bend, according to turning size, steering wheel steering gear can control steering cylinder piston rod protrude outwardly to it is specified
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, 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 and 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.
Embodiment 2：
A kind of wheel excavator, structure is 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 set to overlap, in Fig. 8 b, the work of front rod and steering cylinder
Stopper rod one end is hinged by steering cylinder, front rod front axle C and front axle bracket in same position.When the piston rod of steering cylinder is logical
Cross stretch control front axle bracket rotation when, the reaction time of front rod can be saved.
Embodiment 3：
A kind of wheel excavator, structure is 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 distribution of the staggered floor on horizontal plane direction, to avoid the transmission that influences each other.
Embodiment 4：
A kind of wheel excavator, structure is 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, it is all located at the upper side in Fig. 8 a.Current connecting rods
When effect, by hinge bar, back link effect is driven, front rod and back link act on the crane span structure of the same side.
Embodiment 5：
A kind of wheel excavator, structure is as described in Example 1, the difference is that distance of the hinge bar apart from front axle bracket
Hinge bar is placed on front to avoid the structures such as intermediate transmission case and transmission shaft by the distance less than hinge bar apart from rear axle stand.
Embodiment 6：
A kind of wheel excavator, including walking chassis 100, walking chassis top are equipped with upper turntable 400, operating device 700
Equal 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 connect 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 direction 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 is logical
It crosses steering cylinder rear axle G to connect 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, the piston rod one of front rod 10 and the hinged position of front axle bracket 2 and 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 is 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, only only show rocking carrier in Fig. 5 e
How to be assembled with rear axle stand, is 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 as, are because would generally centre position be located at rear vertical shaft, for rear vertical shaft
It passes through, is processed integrally with rocking carrier so setting two connecting shafts, middle section reserves the space that rear vertical shaft passes through from centre.
Embodiment 8：
A kind of wheel excavator, structure is as described in Example 7, the difference is that 3 both sides of rear axle stand are arranged with two
19 top 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 with two axle bed a 19 respectively
It connects.Axle bed a and rear axle stand are set as one, after connecting shaft is put into axle bed a, closed above axle bed a by independent axle bed b,
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 is 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 is as described in Example 9, the difference is that rear axle stand 3 includes symmetrically arranged two
A riser 20, the distance between two risers are more than the width of rocking carrier 4, and rocking carrier 4 is set between two risers of rear axle stand,
As shown in figure 5f.When 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 side there are one connecting shaft；Between the rear axle stand riser and rocking carrier of the other 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
Axis is inserted into hinged with rocking carrier in 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 is as described in Example 10, the difference is that side is equipped between two risers 20
Intermediate support plate 21, the bonding strength between two risers for enhancing rear axle stand separation, as shown in Fig. 6, Figure 14, and is waved
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 is 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 is 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 connect 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 when 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 encounter 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 is locked, firmly withstands rear axle stand, rear axle and tire are no longer swung, so ensure that smooth operations when digging operation, such as
Fig. 5 c.
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 connect by preceding vertical shaft with body frame, and rear axle stand is connect 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 connect with body frame, turns to
Piston rod one end of oil cylinder is hinged with front axle bracket；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 with body frame among hinge bar
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；Steering cylinder is with front rod 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；Hinged by hinge bar axis and body frame among hinge bar, 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 connect by preceding vertical shaft with body frame, and rocking carrier is stood after passing through
Axis is connect 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 connect with body frame, turns to
Piston rod one end of oil cylinder is hinged with front axle bracket；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 with body frame among hinge bar
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.
7. wheel excavator according to claim 6, which is characterized in that rear axle stand both sides are arranged with two axle bed a, axis
Axle bed b is respectively provided with above seat a, two connecting shafts of rocking carrier are hinged with two axle bed a respectively；
Wear-resistant sleeve A and wear-resistant sleeve B is equipped between axle bed a, axle bed b and connecting shaft；Wear-resistant sleeve is equipped between rocking carrier and rear vertical shaft
C。
8. wheel excavator according to claim 7, 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 set between two risers of rear axle stand；Two risers it
Between side be equipped with intermediate support plate.
9. 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.
10. wheel excavator according to claim 5, which is characterized in that the both ends of rocking carrier are symmetrically respectively provided with one and shake
Oil cylinder is put, two oscillating cylinders are left oscillating cylinder and right oscillating cylinder, and the cylinder barrel end of oscillating cylinder connect with rocking carrier, waves
The piston end of oil cylinder is contacted with rear axle stand；Two oscillating cylinders are connect with hydraulic system.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820052747.5U CN207749564U (en) | 2018-01-12 | 2018-01-12 | A kind of wheel excavator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820052747.5U CN207749564U (en) | 2018-01-12 | 2018-01-12 | A kind of wheel excavator |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108049452A (en) * | 2018-01-12 | 2018-05-18 | 山东犀牛工程机械有限公司 | A kind of wheel excavator and its walking forward method |
| CN111350217A (en) * | 2020-03-19 | 2020-06-30 | 贵州詹阳动力重工有限公司 | Fixing device for folding working device of wheel excavator |
-
2018
- 2018-01-12 CN CN201820052747.5U patent/CN207749564U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108049452A (en) * | 2018-01-12 | 2018-05-18 | 山东犀牛工程机械有限公司 | A kind of wheel excavator and its walking forward method |
| CN111350217A (en) * | 2020-03-19 | 2020-06-30 | 贵州詹阳动力重工有限公司 | Fixing device for folding working device of wheel excavator |
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| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191220 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.) Patentee after: Shandong Kenshi Heavy Industry Machinery Co., Ltd Address before: 252512 Shandong Liaocheng Guanxian Dingyuan town rhinoceros Engineering Machinery Co., Ltd. Patentee before: Shandong rhinoceros construction machinery and equipment Co., Ltd |
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| TR01 | Transfer of patent right |