CN2457189Y

CN2457189Y - Road roller

Info

Publication number: CN2457189Y
Application number: CN 00258596
Authority: CN
Inventors: 邢杰
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-10-18
Filing date: 2000-10-18
Publication date: 2001-10-31
Anticipated expiration: 2010-10-18

Abstract

The utility model discloses a road roller, which comprises a roller body, a runner wheel, a helper roll, a support, and a connecting device connected with the helper roll. At least one runner wheel is arranged in a match with the helper roll, the area of the cross section of the helper roll is smaller than the area of the cross section of the runner wheel, and the both ends of the helper roll are connected with a fixed position of the roller body respectively through the connecting device; for instance, the connecting device comprises a pair of hydraulic props which can keep the helper roll below the runner wheel, and the helper roll firmly presses a spread layer by using action force corresponding to the weight of the runner wheel. Because the curvature of the wheel face of the helper roll is larger than the curvature of the wheel face of the runner wheel at the time of adopting the road roller with the structure, the helper roll can deeply press the spreading layer down; thereby, the road roller can be still caused to generate the compactness degree with a high level under the condition of a correspondingly lower tonnage.

Description

A kind of road roller

The utility model relates to a kind of road roller.

In background technology, existing road roller can be divided into quiet rolling formula and vibrating type, and when quiet rolling formula road roller was worked, rolling wheel steadily rolled, progressively compacting shop layer; During vibrating roller work, under the effect of vibrating device, rolling wheel also can produce the vibration of certain frequency and intensity, to strengthen consolidation effect.The road roller rolling wheel also can be selected different material manufacturings for use, and the cast steel rolling wheel is arranged, and the tire rolling wheel is arranged.According to own wt, road roller is designed to many different tonnages again, under the identical situation of mechanical type, obtain the degree of compaction of higher standard, needs to adopt the road roller of higher tonnage.The large roller of high tonnage from great, consume when making that material is many, manufacturing cost is high.

The purpose of this utility model is to propose a kind of road roller, and this road roller still can produce the degree of compaction of higher standard when builder's tonnage is low.

For this reason, the utility model provides a kind of road roller, comprises body, rolling wheel, the help roll of spreading shop layer, and the linkage that connects, supports help roll temporarily or permanently; Have at least a rolling wheel to be equipped with help roll, the help roll cross-sectional area is less than the rolling wheel cross-sectional area, and the help roll two ends are connected with the body fixed position by linkage respectively.

As improvement of the present utility model, when road roller adopts help roll to carry out compacting operation, help roll remains in the rolling wheel below, rolling wheel bottom wheel face leaves the shop lamination and is attached on the wheel face of help roll top, help roll bottom wheel face overlays on the layer of shop, help roll is suitable with the rolling wheel axial length, and axial line is parallel to each other, and can be around each axis of rotation relative to oppositely rotating.

As another improvement of the present utility model, all rolling wheels of road roller all are equipped with help roll.

Below in conjunction with accompanying drawing the specific embodiment of the present utility model is described in further detail:

Fig. 1 is a kind of embodiment unitary side of the utility model diagrammatic sketch

Fig. 2 is the another kind of embodiment unitary side of a utility model diagrammatic sketch

Fig. 3 is another embodiment unitary side diagrammatic sketch of the utility model

Fig. 4 is a pair of cross bar linkage structure schematic diagram

Fig. 5 connects the form schematic diagram for a kind of help roll axle head pivot

Fig. 6 connects the form schematic diagram for hydraulic prop and a kind of pivot of body front baffle side plate

In Fig. 1, road roller rolling wheel 2 is equipped with a help roll 3, and linkage comprises the linking arm and the pair of cross connecting rod 43 of a pair of telescopic hydraulic prop, a pair of regular length; In body one side, a wherein end axle 31 of help roll 3 is the in succession termination of a linking arm 42 and the termination of a hydraulic prop 41 of pivot simultaneously; Two other termination of linking arm 42 and hydraulic prop 41 respectively with body front baffle side plate 5 on 2: 51,52 mutually pivot connect, and constitute leg-of-mutton three summits with auxiliary roller end axle 31 is common; At the body opposite side, identical hydraulic prop and linking arm are set, a pair of hydraulic prop is parallel to each other, but and synchronization telescope; When hydraulic prop extended, help roll 3 was the circular arc line motion of radius just along being the center of circle to put 52 with linking arm 42 length.Begin contact shop layer 1 when it moves to a certain position, hydraulic prop 41 continues elongation, overlays shop layer 1 until help roll 3 with certain active force.In this process, rolling wheel 2 can not break away from and shop layer 1 contacts, roll jointly with help roll 3, layer is spread in compacting together, but a part of weight loading of rolling wheel 2 has been transferred to help roll 3 by

linkage

41,42 and front baffle side plate 5, because help roll 3 is taken turns the curvature of face big than rolling wheel 2, so the weight loading that this part transfer is come will be by the better consolidation effect of help roll 3 performances, so that the high-level degree of compaction of whole acquisition.Certainly, hydraulic prop 41 is elongation further, leaves shop layer 1 fully up to rolling wheel 2, and the weight loading of rolling wheel just almost all has been transferred to help roll like this, makes help roll compacting more fully shop layer.After help roll fulfiled assignment, hydraulic prop counteragent, help roll left the shop layer gradually.Help roll 3 is not in contact with one another all the time with rolling wheel 2 wheel faces in whole process.A pair of linking arm is parallel to each other, and initial and tail sections 4 points are connected by pair of cross connecting rod 43 in twos, and cross link presents two diagonal angle linear structures of rectangle.As Fig. 4, so just guarantee vertical all the time help roll 3 length directions of a pair of linking arm, it is out of shape can under big load skew not to take place.

In Fig. 3, road roller rolling wheel 2 is equipped with two identical columniform help rolls, and linkage is the steel plate of a pair of trapezoidal profile; Backplate 6 bottoms along After-Body one side, be welded with a trapezoidal steel plate 44 of vertical setting, the same horizon in trapezoidal steel plate bottom is provided with two and waits big hole 441,442, each Circularhole diameter is less than help roll 3 diameters, two circular hole distance of center circle are greater than the help roll diameter, and each circular hole equals help roll 3 and rolling wheel 2 radius sums to the distance in rolling wheel axle center; In the backplate bottom of body opposite side, be symmetrically welded identical trapezoidal steel plate, two help rolls are installed between the described a pair of trapezoidal steel plate side by side, end axle respectively with two block plates on four circular holes mutually pivot connect.Like this, two help rolls are certain distance separately just, the weight of common support rolling wheel 2, and rolling wheel 2 no longer spreading shop layer 1, two help roll produces high-level degree of compaction to be equivalent to the active force spreading permanently shop layer 1 of rolling wheel 2 weight.

In Fig. 2, rolling wheel 2 is equipped with a help roll 3, and linkage comprises a pair of hydraulic prop and pair of cross connecting rod 43; In body one side, an end pivot of a hydraulic prop 41 connects the end axle 31 of help roll 3, on the other end of hydraulic prop 41 and the body front baffle side plate 51: 51 mutually pivot connect, at the body opposite side, symmetry is installed another root hydraulic prop; But a pair of hydraulic prop synchronization telescope, when it extended, just gradually to the motion of rolling wheel 2 belows, after hydraulic prop was stretched to maximum length, help roll 3 remained on rolling wheel 2 belows, support rolling wheel 2 to help roll 3 temporarily; And to be equivalent to the active force spreading shop layer 1 of rolling wheel 2 weight, help roll 3 and rolling wheel 2 co-rotation, switched in opposite, the high-level degree of compaction of whole generation; After help roll 3 operations finished, hydraulic prop progressively shrank, and when it foreshortened to minimum length, help roll 3 disengagings contacted with rolling wheel 2 wheel faces.Respectively get 4 points at two hydraulic prop hydraulic cylinder initial and tail sections, be connected by pair of cross connecting rod 43 in twos, the pair of cross connecting rod presents two diagonal angle linear structures of rectangle, as Fig. 4, so that two hydraulic props are all the time perpendicular to help roll 3 length directions, and be not offset out of shape.

For the road roller that can make things convenient for, assemble and use the utility model to propose reliably, also can do structural improvement or increase new parts some parts of road roller.Such as, but body front baffle side plate 5 proper extensions such as Fig. 1; What also body front baffle side plate 5 can be designed to upwards arch upward is arc as Fig. 2, or other suitable shape, to guarantee that help roll 3 has enough installing spaces.Bearing shell the latter half 411 of pivot hydraulic prop 41 ends even can be narrower mutually with help roll 3 end axles 31, the first half 412 is generouser, as Fig. 5, when can make help roll 3 end axles, 31 diameters and intensity big as far as possible like this, guarantee that hydraulic prop 41 ends also have enough intensity, do not contact friction with shop layer 1.The pivot company headquarters part of help roll axle head can install dust guard additional, such as outside suit one rubber sleeve at pivot company headquarters part, enters and damage pivot company headquarters part to avoid foreign material such as sandstone, pitch.The hydraulic prop 41 of linkage also can attach buffer, such as accompanying one deck rubber pad 9 between pedestal 413 that connects part at hydraulic prop 41 end pivots and the body front baffle side plate 5, as Fig. 6, to reduce impact.Sometimes the body fixed position also can be provided with and help roll 3 is pulled away from the retracting device 7 of shop layer 1 and/or with the bracing or strutting arrangements 8 of rolling wheel 2 fragmented shop layers 1.Such as, in Fig. 2, retracting device can be parallel, be arranged on a pair of little hydraulic prop of body both sides symmetrically, little hydraulic prop 7 one end pivots are connected on the body front baffle side plate 5, the hydraulic cylinder of the other end and linkage hydraulic prop 41 pivot mutually connects, during help roll 3 operations, little hydraulic prop 7 is in relaxed state; The help roll operation finishes, and after hydraulic prop 41 was retracted to minimum length, help roll 3 still freely dropped on the shop layer 1, and at this moment little hydraulic prop 7 just begins to shrink, and drives help roll 3 and leaves and spread layer 1 contacts; Retracting device can also be that reel leaves the shop layer by the wire rope pulling help roll.Bracing or strutting arrangement can be a pair of big hydraulic prop that is symmetrically welded on body front baffle both sides side plate 5, big hydraulic prop 8 hydraulic stems down, the terminal pivot connects iron pad 81, before help roll begins operation, and the elongation earlier of big hydraulic prop 8, iron pad 81 is stepped on the shop layer 1, and gradually with the fragmented shop of rolling wheel 2 layer 1 certain altitude, then, help roll 3 just can move under the effect of hydraulic prop 41 below the rolling wheel 2 at an easy rate, big hydraulic prop 8 slowly shrinks again, and rolling wheel 2 is fallen on the help roll 3.Bracing or strutting arrangement can also be that non-hydraulic means such as machine driving bar supports rolling wheel and leaves the shop layer.

Help roll 3 cross-sectional areas can be less than 1/4th of rolling wheel 2 cross-sectional areas, and help roll 3 cross sections are rounded usually, and diameter is 1/8th to 1/4th of rolling wheel 2 diameters; Certainly, the help roll cross section also can be other suitable shape, such as the omited ovalize that has, so that produce certain vibrating effect during the help roll operation.

Rolling wheel 2 can be the vibrating type rolling wheel, also can be quiet rolling formula rolling wheel; Can be the cast steel rolling wheel, also can be the tire rolling wheel.

Claims

1, a kind of road roller comprises body and rolling wheel (2), it is characterized in that: it also comprises the help roll (3) of the shop of spreading temporarily or permanently layer, and the linkage (41,42,43,44) that connects, supports described help roll; Have at least a rolling wheel to be equipped with help roll, help roll (3) cross-sectional area is less than described rolling wheel (2) cross-sectional area, and help roll (3) two ends are connected with body fixed position (5,6) by linkage respectively.

2, a kind of road roller according to claim 1 is characterized in that: rolling wheel is equipped with a help roll, and described linkage comprises the linking arm and the pair of cross connecting rod (43) of a pair of telescopic hydraulic prop, a pair of regular length; In body one side, a wherein end axle (31) of help roll (3) is the in succession termination of a linking arm (42) and the termination of a hydraulic prop (41) of pivot simultaneously; Two other termination of described linking arm and hydraulic prop respectively with body front baffle side plate (5) on 2 points (51,52) Xiang Shulian, and constitute leg-of-mutton three summits jointly with auxiliary roller end axle (31); At the body opposite side, identical hydraulic prop and linking arm are set, described a pair of linking arm is parallel to each other, and initial and tail sections 4 points are connected by pair of cross connecting rod (43) in twos, and cross link presents two diagonal angle linear structures of rectangle; Described a pair of hydraulic prop is parallel to each other, but and synchronization telescope; Help roll (3) is not in contact with one another all the time with rolling wheel (2) wheel face.

3, a kind of road roller according to claim 1, it is characterized in that: when help roll (3) carries out compacting operation, remain in rolling wheel (2) below, rolling wheel bottom wheel face leaves the shop lamination and is attached on the wheel face of help roll top, help roll bottom wheel face overlays on shop layer (1), help roll is suitable with the rolling wheel axial length, and axial line is parallel to each other, and can be around each axis of rotation relative to oppositely rotating.

4, a kind of road roller according to claim 3 is characterized in that: rolling wheel is equipped with two identical columniform help rolls, and linkage is the steel plate of a pair of trapezoidal profile; Backplate (6) bottom along After-Body one side, be welded with a trapezoidal steel plate (44) of vertical setting, the same horizon in trapezoidal steel plate bottom is provided with two and waits big hole (441,442), each Circularhole diameter is less than help roll (3) diameter, two circular hole distance of center circle are greater than the help roll diameter, and each circular hole equals help roll (3) and rolling wheel (2) radius sum to the distance in rolling wheel axle center; In the backplate bottom of body opposite side, be symmetrically welded identical trapezoidal steel plate, two help rolls are installed between the described a pair of trapezoidal steel plate side by side, end axle respectively with two block plates on four circular holes mutually pivot connect the permanent support rolling wheels of two help rolls (2).

5, a kind of road roller according to claim 3 is characterized in that: rolling wheel is equipped with a help roll, and linkage comprises a pair of hydraulic prop and pair of cross connecting rod (43); In body one side, an end pivot of a hydraulic prop (41) connects the end axle (31) of help roll (3), (51) Xiang Shulian a bit on the other end of hydraulic prop (41) and the body front baffle side plate (5); In body opposite side symmetry another hydraulic prop is installed; Respectively get 4 points at two hydraulic prop hydraulic cylinder initial and tail sections, be connected by pair of cross connecting rod (43) in twos, the pair of cross connecting rod presents two diagonal angle linear structures of rectangle; But described a pair of hydraulic prop synchronization telescope, when it was stretched to maximum length, help roll (3) remained under the rolling wheel (2) temporarily, the support rolling wheel; When hydraulic prop foreshortened to minimum length, help roll (3) disengaging contacted with rolling wheel (2) wheel face.

6, according to any one described a kind of road roller in the claim 1,3,5, it is characterized in that: the body fixed position is provided with the retracting device (7) that help roll (3) is pulled away from shop layer (1).

7, according to any one described a kind of road roller in the claim 1,3,5, it is characterized in that: the body fixed position is provided with the bracing or strutting arrangement (8) with the fragmented shop layer of rolling wheel (2) (1).

8, according to any one described a kind of road roller in the claim 1 to 5, it is characterized in that: help roll (3) cross-sectional area is less than 1/4th of rolling wheel (2) cross-sectional area.

9, according to any one described a kind of road roller in the claim 1,2,3,5, it is characterized in that: help roll (3) cross section is rounded, and diameter is 1/8th to 1/4th of rolling wheel (a 2) diameter.

10, according to claim 1 or 3 described a kind of road rollers, it is characterized in that: all rolling wheels all are equipped with help roll.