The steering articulated mounting of super heavy vibrative road roller
Technical field
The invention belongs to the pavement construction machinery field of engineering machinery more particularly to a kind of steering hinges of super heavy vibrative road roller
Connection device.
Background technology
Vibrated roller is the equipment using the various buildings of the gravity of its own and vibrating compacting and road-making material.In iron
In the engineerings such as road, airport, harbour, building, vibrated roller optimum is compacted various non-sticky soil, rubble, macadam-aggregate mix
And various bituminous concretes, it is one of important equipment of engineering construction;In construction of the highway, it is mostly used on roadbed, road surface
Compacting, is indispensable compacting equipment in pavement construction.
The front/rear frame of existing vibrated roller is substantially realizes connection by turning to articulated mounting, in vibrated roller
Driving process in, by controlling the rotation of the steering articulated mounting in the horizontal plane that could realize the steering of front/rear frame.
As shown in Fig. 2, it is existing steering articulated mounting include axis pin a, hold-down bolt b, pressing plate c, upper press cover d, bearing e,
Lower cover f, spacer g, rear body cradle h, preceding body cradle i and bolt j, rear body cradle h and preceding body cradle i are hinged by axis pin a, after
Body cradle h includes outer strut h1 and inner supporting rod h2, be equipped in the upper surface of the upper surface of axis pin a and outer strut h1 one connect sink
Platform, pressing plate c are mounted in the heavy platform, and pressing plate c is fastened in the heavy platform of outer strut h1 by hold-down bolt b, axis pin a and preceding body cradle
I is mounted on axis by a bearing e connection, upper press cover d mounted on the outer ring of bearing e and the top of preceding body cradle i, lower cover f
The outer ring of e and the lower section of preceding body cradle i are held, before upper press cover d and lower cover f are fixed on respectively by a bolt j on body cradle i,
The outer ring of bearing e is controlled by upper press cover d and lower cover f before being assemblied on body cradle i, the upper surface of bearing e inner rings and pin
The shaft shoulder of axis a connects, spacer g be sleeved on axis pin a and be connected to the lower faces of bearing e inner rings and inner supporting rod h2 upper surface it
Between.
Above-mentioned steering articulated mounting structure is relatively easy, for light-duty, small-sized and medium-size vibration road roller, due to work
It is smaller to make quality, can prevent axis pin from rotating and being moved up along axle center by pressing plate and hold-down bolt, can be made by spacer
The axial gap between body cradle and preceding body cradle is reduced in prescribed limit afterwards.But for super heavy vibrative road roller, especially
It is that work quality is more than for 30000 kilograms of vibrated roller, since work quality is big, the distributed load on front/rear frame
Weight, therefore the stress for turning to articulated mounting is quite big, is had the following problems using above structure:
1st, axis pin is located on rear body cradle by hold-down bolt by pressing plate, because between pressing plate and axis pin, hold-down bolt with
Always there are axial gap between the threaded hole of pressing plate, when controlling the opposite steering in the horizontal plane of forward and backward body cradle, in super large
Under the load force of type, when axis pin contact because with pressing plate, gradually appears formation abrasion, and axis pin is gradual relative to rear body cradle
It rotates, so as to the bearing pin mounting hole on body cradle after wearing, is allowed to become slotted eye, affect turning for vibrated roller
To stability and complete machine working performance;
2nd, because rear body cradle and preceding body cradle connection are processed there is always there is error, therefore, spacer cannot completely eliminate
Gap between body cradle and preceding body cradle axial direction afterwards, when controlling the opposite steering in the horizontal plane of forward and backward body cradle, in ultra-large type
Load force under, axis pin axial movement contacted with pressing plate and gradually appear formation abrasion, axis pin relative to rear body cradle by
It gradually rotates, so as to the bearing pin mounting hole on body cradle after wearing, is allowed to become slotted eye, affects vibrated roller
Steering stability and complete machine working performance;
3rd, under the load force of ultra-large type, two hold-down bolts will appear cutting, cause pressing plate and axis pin from rear hinge
It connects and is loosened on frame, there are hidden danger to the safe driving of complete machine.
Invention content
The purpose of the present invention is to provide the countershafts that one kind can effectively eliminate axis pin, rear body cradle, bearing and preceding body cradle
To gap, axis pin is low relative to the probability that rear body cradle rotates, steering stability and the high superduty of complete machine working performance
The steering articulated mounting of vibrated roller.
The steering articulated mounting of this super heavy vibrative road roller provided by the invention, including rear body cradle, bearing, axis pin
With preceding body cradle, rear body cradle and preceding body cradle are hinged by axis pin, and bearing is socketed between axis pin and preceding body cradle, rear hinged
Frame includes outer strut and inner supporting rod, which further includes sliding sleeve and several locking nuts, the upper surface of bearing and outer strut lower end
Face connects, and sliding sleeve is socketed between the lower end of axis pin and inner supporting rod, and locking nut is mounted on the axis pin of sliding sleeve lower end, screws lock
Tight nut pushes sliding sleeve to move up, and close proximity controls lock clasp rear hinged successively for driving bearing pin, outer strut, bearing and sliding sleeve
On frame.
To make axis pin of the present invention lower relative to the probability that rear body cradle rotates, lead between the axis pin and outer strut
Cross key connection.
Bearing clearance to make the present invention can adjust, and ensure uniform force, extend bearing service life, and the bearing has two
It is a.
The locking nut uses round nut, and check washer is equipped between the locking nut and sliding sleeve.
Positioned at the preceding body cradle lower end locking nut there are two.
An adjusting nut is equipped between the axis pin and outer strut of the preceding body cradle lower end.
The lower face of the sliding sleeve is not higher than the lower face of inner supporting rod.
The upper surface of the sliding sleeve is not less than the upper surface of inner supporting rod.
Two bearings do not connect.
Compared with prior art, the present invention has the following advantages:
1st, by locking nut by axis pin positioning and locking on rear body cradle, can effectively eliminate axis pin head lower face with
Axial gap between outer strut upper surface, when controlling the opposite steering in the horizontal plane of forward and backward body cradle, even if in ultra-large type
Load force under, axis pin can be also in close contact with rear body cradle, be not in formation abrasion and relative rotation, after ensure that
The roundness of body cradle upper pin mounting hole;
2nd, by being socketed sliding sleeve between the lower end of axis pin and inner supporting rod, sliding sleeve and bearing are axially moved using locking nut
It is locked between the outer strut of rear body cradle and inner supporting rod, is effectively eliminated because rear body cradle is connected with preceding body cradle after dynamic
Locate the axial gap caused by mismachining tolerance, when controlling the opposite steering in the horizontal plane of forward and backward body cradle, even if in ultra-large type
Load force under, axis pin will not be axially moveable, remain with rear body cradle be in close contact, be not in deformation mill
Relative rotation is undermined, ensure that the roundness of rear body cradle upper pin mounting hole.
3rd, it is connect with pin shaft thread using locking nut instead of hold-down bolt, increases bonding strength, in the negative of ultra-large type
Under lotus active force, it is difficult to cutting phenomenon occur, it is therefore prevented that axis pin is loosened from rear body cradle.
The configuration of the present invention is simple, it is easy for assemble or unload, can effectively eliminate axis pin, rear body cradle, bearing and preceding body cradle it
Between axial gap, eliminate the relative rotation between axis pin and rear body cradle and generate the abrasion of hole or axis, it is ensured that complete machine
Steering stability and complete machine working performance, improve the safe driving of complete machine.
Description of the drawings
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the structure diagram of the prior art.
Specific embodiment
It will be seen from figure 1 that the steering articulated mounting of this super heavy vibrative road roller of the present invention, including rear body cradle 1,
Bearing 3, sliding sleeve 4, locking nut 5, axis pin 6 and preceding body cradle 7, rear body cradle 1 include two horizontally disposed outer 11 Hes of strut
Inner supporting rod 12, preceding body cradle 7 include a horizontal strut 71, the horizontal strut 71 it is horizontally disposed outer strut 11 and inner supporting rod 12 it
Between, a mounting hole being adapted with axis pin 6 is equipped on outer strut 11, is adapted on inner supporting rod 12 equipped with one with sliding sleeve 4
Through-hole, rear body cradle 1 pass through outer strut 11, horizontal strut 71 and inner supporting rod 12 to be hinged with preceding body cradle 7 by axis pin 6, bearing 3
It is socketed between axis pin 6 and the horizontal strut 71 of preceding body cradle 7, sliding sleeve 4 is socketed in the lower end of axis pin 6, and locking nut 5 is mounted on
On the axis pin 6 of 4 lower end of sliding sleeve, locking nut 5 is screwed, sliding sleeve 4 is pushed to pass through the through-hole band dynamic bearing 3 on inner supporting rod 12 in an axial direction
Move up, axis pin 6 moves down in an axial direction, the upper surface of the lower face on 6 head of driving bearing pin and outer strut 11, the upper surface of bearing 3 with
Outer 11 lower face of strut, the upper surface of sliding sleeve 4 and the equal close proximity in lower face of bearing 3, control axis pin 6 are locked at rear body cradle
On 1.
It is seen also in fig. l that the invention also includes key 2, in the corresponding position of the outer strut 11 and axis pin 6 of rear body cradle 1
Equipped with keyway, key 2 is mounted on the rotation angle positioning for axis pin 6 on rear body cradle 1 in the keyway.
It is seen also in fig. l that there are two the bearings 3 of the present invention, one is equipped in the top and bottom of horizontal strut 71
The heavy platform being adapted with the outer ring of bearing 3, the inner ring of two bearings 3 are sleeved on axis pin 6, point that the outer rings of two bearings 3 does not connect
It An Zhuan not be tight positioned at the upper surface of 3 inner ring of bearing of 71 upper end of horizontal strut and outer 11 lower face of strut in corresponding heavy platform
It is close to connect, positioned at the lower face of 3 inner ring of bearing of 71 lower end of horizontal strut and 4 upper surface close proximity of sliding sleeve.
It is seen also in fig. l that the locking nut 5 of the present invention uses round nut, under the locking nut 5 and sliding sleeve 4
Check washer 8 is equipped between end face.
It is seen also in fig. l that positioned at 7 lower end of body cradle before the present invention locking nut 5 there are two, in preceding body cradle 7
An adjusting nut 9 is equipped between the axis pin 6 of lower end and outer strut 11, the lower face of sliding sleeve 4 is not higher than the lower face of inner supporting rod 12,
The upper surface of sliding sleeve 4 is not less than the upper surface of inner supporting rod 12.
The assembling process of the present invention is as follows:
1st, bearing 3 is separately mounted in 71 corresponding heavy platform of horizontal strut;
2nd, horizontal strut 71 is stretched between outer strut 11 and inner supporting rod 12, makes mounting hole on outer strut 11, bearing 3
Through-hole axle center on endoporus and inner supporting rod 12 overlaps;
3rd, key 2 is placed in the keyway of axis pin 6.It ensure that being relatively fixed for body cradle 1 and axis pin 6;
4th, the through-hole on the mounting hole that axis pin 6 is sequentially inserted on outer strut 11, the endoporus and inner supporting rod 12 of bearing 3, and
Key 2 is made to be placed in the keyway of outer strut 11;
5th, it is set with upper sliding sleeve 4, check washer 8 and locking nut 5 successively from 6 lower end of axis pin, tightening retaining nuts 5 drive
The upward sliding on axis pin 6 of sliding sleeve 4 makes the lower face on 6 head of axis pin and the upper surface of outer strut 11, on horizontal strut 71
The upper surface of 3 inner ring of bearing at end and outer 11 lower face of strut, positioned at 71 lower end of horizontal strut 3 inner ring of bearing lower face with
The equal close proximity in upper surface of sliding sleeve 4, the gap between control axis pin 6, outer strut 11, bearing 3 and sliding sleeve 4 are adjusted to minimum,
Realize that axis pin 6 is locked on rear body cradle 1.