CN1154767C

CN1154767C - Bulk material spreader

Info

Publication number: CN1154767C
Application number: CNB991158059A
Authority: CN
Inventors: 苟红侠; 南文辉
Original assignee: LIAOYUAN ELECTROMECHANICAL EQUIPMENT CO Ltd SHAANXI
Current assignee: Shaanxi Changda Shiye Equipment Co., Ltd.
Priority date: 1999-06-23
Filing date: 1999-06-23
Publication date: 2004-06-23
Anticipated expiration: 2019-06-23
Also published as: CN1239169A

Abstract

The present invention discloses a bulk material spreading device which is composed of a machine frame (1), supporting wheels (2) on the front end of the machine frame (1), a V-shaped spreading board (16) in front of the back part (7) of the machine frame and a connecting device (11) of the tail end of the machine frame (1), wherein the machine frame (1) uses the connecting device (11) for being connected with a shovel frame (4) of a bulldozer to form a long non-flexible spreading machine frame of which the back part is driven by bulldozer caterpillars to walk and the front part is supported by the supporting wheels (2) to walk, and the V-shaped spreading board (16) uses an adjusting device (10) between the V-shaped spreading board (16) and the back part (7) of the machine frame for adjusting and controlling the flatness and the thickness of the spreading layer.

Description

Bulk material spreader

Technical field

The present invention relates to a kind of spreader of the bulk material that is used for paving, be mainly used in the paving of road, railway, place basic unit bulk material, cloth; Also can be used for rubbish and dump that thing etc. need pave, shakeouts, the occasion of cloth.

Background technology

As everyone knows, in road, railway, place construction, improvement project, paving of base material is a wherein very important job, base material typically refers to the mixture of building stones, sand, soil, flyash, industrial residue, lime, cement etc. and above-mentioned material, promptly usually said stabilizing material.The laying of base material now adopts machineries such as bulldozer, loader, land leveller to pave usually, a problem is that operating efficiency is low, another problem is the segregation of material, promptly the building stones that particle diameter is bigger in the material that is paved can be separated from mixture and float over the top layer or flow to the edge, destroy the grating of material, slackened the supporting capacity of basic unit.Also having a problem is that the planeness of the material that paved mainly guarantees according to operating personnel's qualification and experience.This in most of the cases be difficult to gratifying, and need with manually more, when adopting special-purpose machinery to pave, mainly pave by asphalt paver or by the machinery of its repacking, the subject matter of this mode is the equipment price costliness, and also having a problem is exactly that material is easily emanated.

The spreading, the spreading machine that also have some other kinds both at home and abroad, Stabilized Soil spreader as Xuzhou Road Building Machine Factory's production by automobile repacking, this machinery removes and costs an arm and a leg, outside the shop is too narrow, also having a problem is to need supporting spreader quantity too big, and the feeding coal that each is mechanical, promptly fabric thickness is difficult for unified.A kind of paver of using of states such as China, Britain, Sweden, Hungary and for example, this machine relies on the haul truck to drag, the material that this truck falls down enters this machine hopper, this hopper bottom is opening-like, there is an open height adjusting device at the hopper rear portion in order to regulate paving thickness, and other has corresponding support wheel.The problem of this machinery is complicated operation, needs two people operation and shop too narrow at least.

Visible following patent of other spreader and disclosed application, as DE812677, DE939749,2135033 (H), WO89/01077, Finnish patent application 801407 (corresponding to SE7903901-2), but these devices all are the tractors that has support wheel and press muller usually, and using this problem of drawing laying apparatus is that the haul truck must travel on the road surface of having laid.Patent WO89/01077 fails to provide so common laying apparatus, but has provided the lateral movement device according to this mode.In this device, the material that is laid is transported on the limit of travel route, and device similarly also has the laying apparatus of U.S. BLAW-KNOX company production therewith.

In the device that Finnish patent application 801407 proposes, a vat and an opening are arranged, being laid material accordingly flows out under the vat open bottom, there is a back plate to be used for limiting the paving thickness that is laid material on this device, this device comprises support wheel and guide plate, and this device is installed on the wheel loader.

The laying apparatus of the Chinese patent application number 93108953 a kind of road-construction mass substances that propose, be installed on the boom of loader, comprise a vat and opening, the material of being spread flows to ground from the opening under the vat, this device comprises that also one is used for the articulated mounting that is connected with the big arm of loader, this sees this device from the side, can rotate around hinged hook, and it comprises that also one presses a muller and an eccentric deflecting roller that supports.

The main height that relies on its anterior adjusting device to regulate the spreading plate at rear portion of this device, and rely on the rear portion to press the adjusting device of muller and loader boom to assist to guarantee the pave thickness and the planeness of material.

Above-mentioned two kinds of facility can be lifted by the loader boom, transferring to another building site from a building site, is that its planeness adjustment is complicated and be difficult to assurance because unstability that wheel machine travels and the characteristics of structure own thereof are limit but these two kinds of machineries have a main problem.

In sum, the existing mode and use machinery to have following weak point of paving: it is required manually more 1, to pave; 2, the spreading evenness adjustment is complicated and be difficult to guarantee; 3, paving width is narrower; 4, facility complicated operation; 5, equipment price costliness; 6, material is easily emanated.

Summary of the invention

The purpose of this invention is to provide a kind of bulk material spreader, it has with an advantage: 1, simple in structure, cost is low; 2, easy to use, paving width is big, and planeness easily guarantees and be easy to adjust simple; 3, material segregation degree reduces.

The object of the present invention is achieved like this: the bottom in the front portion of a spreader frame is provided with support wheel, the middle part of frame is no bottom opening shape, the material that truck falls down piles up on the ground by central rack, the middle lower portion both sides of frame are no bottom opening shape, material in the frame can flow to the frame both sides by this opening, when this opening is blocked, then play the effect of side striker plate, the place ahead at the rear portion of frame is provided with a spreading plate, this spreading plate moves up and down by the adjusting device adjustment between itself and the frame rear portion, be to have one to be used for regulating the adjusting device that spreading plate moves up and down between spreading plate and frame rear portion, thickness in order to the control material that paves, have one before the spreading plate with the feeding-distribution device of material branch to both sides, the afterbody of frame has a linkage, by this linkage the boom that frame and has the machinery of boom is connected together.

In above-mentioned spreader, the linkage of frame by the frame afterbody can with the boom inflexibility of the machinery that has boom link together, at least when paving operation between boom and the frame for inflexibility link together.Like this, this frame constituted together with the boom of machinery this spreader lengthening frame.At this moment, the frame that this has extended, front end walks on the ground that is not paved according to support wheel, and the rear end relies on walking machine to walk on paving layer.

In the above-mentioned machinery that takes up weighing arm, crawler dozer, crawler-type loader are particularly suitable for the present invention, and in crawler dozer, said spreader is installed in the position of soil-shifting perching knife, above-mentioned like this spreader front end is that support wheel supports, and rotate around bulldozer push broach frame fulcrum the rear end.

When paving width is narrower, also can replace above-mentioned crawler dozer by wheel machine that has boom such as wheel loader.

Spreading plate can directly promote spreading plate by the frame rear portion and promote material forward being located under the thrusting action that can produce mobile sliding part or pushing tow roller up and down at frame rear portion.

For making material can be diverted to both sides smoothly, the uniformity to guarantee to pave can be provided with tip V-type tripper forward in spreading plate the place ahead.

Lower end, top V-type tripper rear portion also can be connected with the hinge form with spreading plate, at this moment, can establish an adjusting device between V-type tripper and spreading plate, to regulate the gradient of V-type tripper.

When certainly adopting hinge to be connected between V-type tripper and spreading plate, between V-type tripper and the frame front, also can establish one and connect lever, be linked to be an integral body between this lever and V-type tripper, be flexible connection between lever front end and frame.Be that lever can rotate around the flexible connection between lever front end and frame together with the V-type tripper, and rely on the adjusting device adjustment (adjusting) lever front end height of this flexible connection.This flexible connection can be located near the support wheel, and comparatively ideal situation is provided in a side of near the support wheel shaft.

Be that the spreading plate place can extend forward to connect and shoulders bar, shouldering the bar front end in connection can be connected with frame front end support wheel place by a flexible connection, this flexible connection can be by its height of adjusting device up-down adjustment, bar is shouldered in connection and the V-type tripper is linked to be an inflexible integral body, keeps V-type tripper lower surface and flexibly connects near being on the plane.

The height of above-mentioned flexible connection can be close with the material thickness that is paved, and more satisfactory situation is to equate with the thickness of paving material.

Here flexibly connect to be to be under the V-type tripper on the transverse plane extended surface forward on the horizontal direction parallel to the ground.

According to the width needs two or three tip V-type trippers forward can be set before spreading plate.

Can certainly be in juxtaposition by the spreader that two or three are above-mentioned, constitute a spreader of widening, a linkage that is connected with the bulldozer knife rest is set in the afterbody middle part of this spreader frame of widening with V-type sub-material structure.

For making material can be diverted to both sides smoothly, with the uniformity that guarantees to pave, spreading plate and V-type tripper can be designed to tip V-type spreading plate forward, and this V-type spreading plate had both worked the effect of paving, and played material-distributing action again.

When using the V-type spreading plate, reach unanimity for making paving thickness, can between V-type spreading plate and frame front, establish one and be connected lever, this lever and V-type spreading plate are linked to be an integral body, are flexible connection between lever front end and frame.It is lever can rotate and rely on this flexible connection around the flexible connection between lever front end and frame together with the V-type spreading plate adjusting device adjustment (adjusting) lever front end height.This flexible connection can be located near the support wheel, and more satisfactory situation is provided in a side of near the support wheel shaft.

Here the height of Huo Donglianjieing can be close with the material thickness that is paved, and more satisfactory situation is to equate with the thickness of paving material.

Above-mentioned flexible connection can be arranged to the form of sliding up and down, and flexible connection is fixed on vertical direction, so that adjust the height that flexibly connects.

Above-mentioned flexible connection can be to be under the V-type spreading plate on the transverse plane extended surface forward on the horizontal direction parallel to the ground.

According to the width needs, spreading plate can be arranged to two or three V-type spreading plates with tip V-type sub-material structure forward arranged side by side.

Certainly, the spreader that also two or three can be had a V-type spreading plate side by side and link together constitutes a spreader of widening.One linkage that is connected with bulldozer push broach frame is set in the frame afterbody middle part of this spreader of widening.

Because above-mentioned V-type sub-material structure is directly separated material, the mechanism deflection of material in paving process can minimize degree, and this will reduce the segregation degree of material greatly.

The opening part of both sides, lower end also can be provided with the spiral feeding-distribution device in the middle of the frame in spreading plate the place ahead, this spiral left and right sides two parts rotation direction is opposite, when it rotates with same direction, mass transport can be flowed to both sides, here, this spiral feeding-distribution device can replace front said V-type sub-material structure, and promptly the feeding-distribution device in the place ahead of spreading plate is the spiral feeding-distribution device.

These spiral feeding-distribution device left and right sides two parts can be set as independent device separately, to make things convenient for the adjustment respectively of left and right sides inventory.

The spiral feeding-distribution device can with spreading plate be provided with in aggregates, i.e. spiral feeding-distribution device moving up and down and move with spreading plate.

The spiral feeding-distribution device also can be arranged on the frame, can establish the adjusting device of an adjustment spiral feeding-distribution device height this moment between spiral feeding-distribution device and frame.

When above-mentioned spreader frame is wide, frame can be divided into some joints, can in this rear-end middle part of wide frame, the linkage that is connected with bulldozer push broach frame be set by the be linked to be integral body of connector between each joint or between each frame with rigidity of frame.Certainly, when frame is wide, also can adopt the structure of the telescopic ironing table that is similar to asphalt paver that frame is arranged to flexible sliding sleeve form.

When above-mentioned spreader spreading plate is wide, also spreading plate can be divided into some joints, each the joint between or by connector the spreading plate rigidity is linked to be an integral body between each spreading plate.Also can take flexible sliding sleeve form to adjust the spreading plate width.

When above-mentioned frame is wide,, can between frame two ends and bulldozer push broach frame hinge, tilting push rod be set for guaranteeing the stable of frame.

When adopting scheme arranged side by side, not enough as a bulldozer thrust, can adopt to add another bulldozer, increase thrust in the mode of tandem boosting.

For keeping its stress balance, stable, can one bogie wheel be set at its place, two ends, rear portion when the frame width is excessive, establishes adjusting device in the bogie wheel supporting to regulate its height, this supporting can rely on slide-and-guide to put down and move.

For the convenient height of adjusting above-mentioned supporting, on its adjusting device buffer spring can be set.

The spreading plate rear portion can have compaction apparatus, as adding a compacting roller is set, and is used for the material that compacting paves, and compaction apparatus can be made one with spreading plate.

Spreading plate can be arranged to the bottom and have screed, and screed can be provided with a vibrating device, with the vibration effect paved material is carried out compacting.This screed can be made one with spreading plate.

Can also add that at the spreading plate rear portion vibration type compaction apparatus being set, this vibration type compaction apparatus is the hammer that vibrates of fast moving about in the of.Rely on the vertical direction of this hammer that vibrates to hit the material compacting that will be paved.This vibration type compaction apparatus can be made one with spreading plate.

Can add also that at the spreading plate rear portion the wheeled compaction apparatus of vibration being set, this vibrating wheels part can be adjusted its height up and down.

The frame front end can be established a push rod device identical with asphalt paver, and this push rod can be around the swing of the formula hinge in the middle of the frame front end, and roller is equipped with at the push rod both ends, and this roller is in order to the trailing wheel of pushing tow haul truck.

At above-mentioned push rod two ends the embrace wheel apparatus identical with asphalt paver can be set, this armful wheel apparatus is a cranked rod, can laterally slide in the push rod of push rod device in the rear end, front end is provided with roller, this cranked rod is stuck on the wheel hub of truck trailing wheel, can prevent that by this cranked rod one truck from leaving spreader, two can drag spreader by truck when needed.

The supporting vertical shaft of the support wheel of frame front can be eccentric type, and this support wheel can rotate promptly usually said universal wheel structure around the vertical hinge that is positioned at its front portion.

Above-mentioned support wheel can protected coverboard at an upper portion thereof under.

In the spreading plate both sides, the opening part outside of the bottom at frame rear portion can be provided with an additional spreading plate.Spreading plate that should be additional forms a four-bar mechanism by means of the spreading plate of two rod members and centre, these two rod members wherein in the outer part one be additional side striker plate, this additional spreading plate effect is identical with middle spreading plate, and can adjust its position by an adjusting device, at this moment whole spreader can be widened by this additional spreading plate and four-bar mechanism.

An additional baffle plate can be established in the bottom of additional side striker plate, this additional in addition baffle plate can be in the side striker plate its height of up-down adjustment.

Above-mentioned additional spreading plate also can take mechanical type to connect, and can take connected mode such as bolt and middle spreading plate to connect together, and at this moment, the additional spreading plate that this mechanical type connects can be and is uneven in length, so that adjust the whole height that paves.

The more than manipulation of the spreader of Jie Shaoing and to drive can be mechanical also can be a fluid pressure type, and to handle can be manual, also can be automatic.

The manipulation of above-mentioned spreader and the power of driving can be from the native machine in stand, also can be from the engine of setting up separately.

When adopting fluid pressure type manipulation, driving, the hydraulic hose of its hydraulic system can be connected in the hydraulic system of bulldozer, and its connected mode is a mode of the prior art.Certainly, the hydraulic hose of its hydraulic system also can be connected in the hydraulic system of the engine drive of setting up separately.

Can forwards extend a rod member from the spreading plate of above-mentioned spreader, this rod member middle part is a point-like with frame front end support wheel place, this fulcrum can be on frame, also can be on a benchmark that is dragged by frame, rod member foremost and the variation of the vertical distance between the ground that does not pave can be used as the foundation of adjusting paving thickness.

This paver device according to the present invention can make things convenient for and form a uniform paving layer exactly, height of its planeness and bulldozer and this spreader and gradient are irrelevant, in order further to improve planeness, can use the scale potentiometer, or ultrasonic wave or laser aid, can also use the existing planeness of asphalt paver to adjust mode, in this case, adjustment such as the thickness of paving layer, planeness can be finished by hydraulic system automatically.

Because the spreader frame forms a stable supporting frame together with bulldozer push broach frame, front support wheel, this is equivalent to the fuselage of crawler type asphalt paver, the supporting frame that this is stable, especially the bulldozer crawler bearing area is big, length is long, and the distance of long crawler belt of bulldozer and frame front support wheel is far away in addition, can be to the out-of-flatness of the thickness of ground and the material that is paved, produce a reduction effect, promptly usually said filter action.In addition, be tending towards the parallel paving thickness of adjusting because the starting point of this spreader is to use the spreading plate bottom and is remained between the material bed and ground that paves, it is to equate with the setting one-tenth-value thickness 1/10 of paving layer in order to guarantee that this spreading plate elongated end height forward is conditioned as far as possible.When the material thickness that is paved changes, only need to regulate the spreading plate rear portion and make it to equate with the nose thickness value as far as possible.Between spreading plate bottom and ground, can form one all the time like this, and limit the inflow of material, can not produce extra shear wave or compressional wave by the preceding lower end of spreading plate near parallel uniform thickness space.

Be straight plate when the preceding no V-structure of spreading plate exactly promptly, or no V-type feeding-distribution device and when being the spiral feeding-distribution device before the spreading plate, by above-mentioned principle, the bulk material spreader that the present invention proposes can only pass through the adjusting device at frame rear portion, the height of regulating spreading plate limits the thickness of the material that paves, and can guarantee the material bed planeness that paves easy, exactly.

In sum, the bulk material spreader that the present invention proposes has the following advantages and good effect:

1, simple in structure, cost is low; 2, easy to use, planeness adjustment is easy accurately; 3, paving width, thickness are big, and the output that paves is big, and paving width, thickness are easy to adjust; 4, material segregation degree is low.

The present invention will be further described below in conjunction with accompanying drawing, and provide optimum implementation.

Description of drawings

Fig. 1 is the spreader lateral view of the China Patent No. 93108953 mentioned in the background technology.

Fig. 2 is the spreader vertical view of the China Patent No. 93108953 mentioned in the background technology.

Fig. 3 is a kind of spreader vertical view that proposes according to the present invention.

Fig. 4 is a kind of spreader lateral view that proposes according to the present invention.

Fig. 5 is the spreader lateral view that removes behind the side striker plate.

Fig. 6 is the spreader lateral view that has the V-type tripper.

Fig. 7 is the spreader lateral view that has the spiral feeding-distribution device.

Fig. 8 is the spreader vertical view that has the spiral feeding-distribution device.

Fig. 9 is the spreader vertical view with two V-type sub-material structures.

Figure 10 is the spreader lateral view that has the levelling lever.

The specific embodiment

Fig. 1, the spreader structural principle schematic diagram that discloses in patent of invention " laying apparatus of the road-construction mass substance " manual of Fig. 2 for the China Patent No. 93108953 mentioned in the background technology of front, in the drawings, there is a connection integral body at its anterior support wheel place and adjusts the connection adjusting device of rearward height, the crossbeam that is linked to be a rigid unitary with the rear portion by top drives the rear portion, the rear portion is provided with a V-type spreading plate, there is a tilting adjusting device that is connected on the crossbeam at this V-type spreading plate place, have three backward at compacting roller place in order to regulating the adjusting devices of compacting roller height, there is a linkage that is hinged and connected with the loader boom at the crossbeam rear portion.Above-mentioned compacting roller and loader boom, work to support whole spreader rear portion, because wheel loader is when thrust etc. changes, it travels and instability and bob, this makes the loader boom be in a kind of labile state, in addition the compacting roller paved material bed on the walking meeting produce a vertical displacement up and down because of external force changes.These can make the spreader rear portion play pendulum, thereby have influence on the planeness of material that spreader paves greatly, this is on the one hand, on the other hand, when the height of paving material changes, must regulate whole postmedian height by the adjusting device of front portion, because the fulcrum at its rear portion is loader boom hinge and compacting roller, and be radial type between loader and the spreader, roller travels again and is being paved above the material, like this, when anterior adjusting device is adjusted rearward height, can shape between the lower plane of V-type spreading plate and ground in an angle, no matter this angle be on the occasion of or negative value, the material that is laid will inevitably form a gradient up or down, said longitudinal grade that Here it is when paving the way or vertical irregularity degree.And because its V-type spreading plate longitudinal separation is bigger, this longitudinal grade cross section up or down can form an intermediate projections or recessed shape, said cross fall that Here it is when paving the way or horizontal irregularity degree.At this moment in order to reduce this horizontal wall inscription as far as possible, just above-mentioned several adjusting devices of adjustment that must be frequent to be regulating the gradient of V-type spreading plate, and these several adjusting devices are not to regulate with same speed, thereby have increased the workload and the difficulty of regulating.Like this, can form one by above-mentioned such road surface that spreader paved and vertically be wavy, laterally be raised or sunken paving layer, descend thereby have influence on the planeness and the compactness that make whole road surface.

Fig. 3, among Fig. 4, front end in the frame 1 of a spreader is provided with support wheel 2, central rack 3 is no bottom opening shape, the material that truck falls down piles up on the ground by central rack 3, the place ahead at frame rear portion 7 is provided with a V-type spreading plate 16, V-type spreading plate 16 relies on pushing tow roller 9 pushing tows in 7 the place aheads, frame rear portion to promote material forward, this V-type spreading plate 16 is regulated it by the hydraulic regulating device 10 at 7 at itself and frame rear portion and is moved up and down height, in order to the control material thickness that paves, V-type spreading plate 16 had both worked the effect of paving, play material-distributing action again, 5 two of frame middle lower portion are no bottom opening shape, 16 fens materials to both sides of V-type spreading plate flow to both sides by this opening, this opening plays the effect of side striker plate when blocking, the afterbody of frame 1 is provided with a linkage 11, by this linkage 11 with frame 1 and a bulldozer push broach frame 4 inflexible connecting together.

As shown in Figure 4, spreader V-type spreading plate 16 is established a lever 12 forward, these lever 12 rear ends and V-type spreading plate are a rigid unitary, and the place that intersect at lever 12 front ends and frame 1 front end support wheel 2 places is for flexibly connecting 13, and lever 12 front ends are regulated its height up and down by adjusting device 14.

When frame 1 by linkage 11 during with bulldozer stand knife rest 4 inflexible linking together, frame 1 constitutes a frame 1 that has extended with stand knife rest 4.

As shown in Figure 3, frame 1 both sides, the sidepiece of V-type spreading plate 16 has an additional spreading plate 26, and this spreading plate 26 is fixed by a four-bar mechanism and is regulated its position by adjusting device 27, and in order to adjust paving width, the rod member in the four-bar mechanism outside is a side striker plate 28.

The supporting vertical shaft 28 at support wheel 2 places of frame 1 front end is positioned at the place ahead of support wheel 2.

When the machinery that has boom was loader, the bulldozer push broach frame 4 among the figure was the big arm of loader.

As shown in Figure 5, material in the frame 1 is shunted, is paved through V-type spreading plate 16 by the opening of central rack 3, formed a uniform paving layer at V-type spreading plate 16 rear portions, when becoming inhomogeneous, can regulate V-type spreading plate 16 height by hydraulic regulating device 10 because of this uniform paving layer of certain reason.When resetting the paving layer one-tenth-value thickness 1/10, earlier by adjusting device 14 adjustment (adjusting) levers 12 front end height, the height of regulating V-type spreading plate 16 by hydraulic regulating device 10 gets final product then.

As shown in Figure 6, the lower end, rear portion and 8 of the spreading plates of the V-type tripper 6 before the spreading plate 8 have an articulated mounting 17.Rotate around this articulated mounting 17, have an adjusting device 18 to adjust the gradient of V-type tripper 6 at V-type tripper 6 and 8 of spreading plates.V-type tripper 6 stretches out a lever 12 forward, and lever 12 rear ends and V-type tripper fuse rigidly, and the place that intersect at lever 12 front ends and frame 1 front end support wheel 2 places is for flexibly connecting 13, and lever 12 front ends can be regulated its height by adjusting device 14.

In Fig. 7, Fig. 8, the feeding-distribution device before the spreading plate 8 replaces with spiral feeding-distribution device 19.Spiral feeding-distribution device 19 minutes flows to both sides to the material of the frame 1 both sides opening by frame middle lower portion 5 places.

In Fig. 9, arranged side by side by the spreader that has V-type spreading plate 16 with two, with connector 21 two spreading plates are linked together between the V-type spreading plate 16, with connector 20 two frames 1 are linked to be an integral body between the frame 1.The linkage 11 of frame 1 afterbody middle part is in order to be connected with bulldozer push broach frame 4.

As shown in figure 10, V-type spreading plate 16 forwards extends a rod member 22, the place that this rod member 22 intersects at itself and frame 1 front end support wheel 2 places is established a fulcrum 23 and is supported, this fulcrum 23 is a hinge-like, lever 22 foremost 24 and ground between distance be used for observing, adjust distance between V-type spreading plate 16 and ground, with the pave thickness of material of mensuration.

Claims

1, a kind of bulk material spreader, comprise support wheel (2), have frame (1), the spreading plate (8) of linkage (11), the afterbody that it is characterized in that frame (1) has a linkage (11), frame (1) front portion is provided with support wheel (2), central rack (3) is no bottom opening shape, frame middle lower portion (5) both sides are no bottom opening shape, spreading plate (8) is equipped with in the place ahead at frame rear portion (7), has one to be used for regulating the hydraulic regulating device (10) that spreading plate (8) moves up and down between spreading plate (8) and frame rear portion (7); Spreading plate is the V-type spreading plate, its with frame front between establish one and be connected lever, this lever and V-type spreading plate are linked to be an integral body, for flexibly connecting, lever can rotate and rely on the adjusting device adjustment (adjusting) lever front end height of this flexible connection around the flexible connection between lever front end and frame together with the V-type spreading plate between lever front end and frame.

2, bulk material spreader according to claim 1 is characterized in that the V-type spreading plate is arranged to tip V-type spreading plate forward.

3, bulk material spreader according to claim 1 is characterized in that V-type spreading plate (16) can be arranged to two or three V-type spreading plates with tip V-structure forward arranged side by side.

4, a kind of bulk material spreader, comprise support wheel (2), the frame (1) that has linkage (11), spreading plate (8), the afterbody that it is characterized in that frame (1) has a linkage (11), frame (1) front portion is provided with support wheel (2), central rack (3) is no bottom opening shape, frame middle lower portion (5) both sides are no bottom opening shape, spreading plate (8) is equipped with in the place ahead at frame rear portion (7), have one to be used for regulating the hydraulic regulating device (10) that spreading plate (8) moves up and down between spreading plate (8) and frame rear portion (7), feeding-distribution device is equipped with in the place ahead of spreading plate (8); Feeding-distribution device is that the V-type tripper also with between spreading plate adopts hinge to be connected, establish one between V-type tripper and the frame front and be connected lever, be linked to be an integral body between this lever and V-type tripper, be flexible connection between lever front end and frame, form lever and can rotate around the flexible connection between lever front end and frame, and rely on the adjusting device adjustment (adjusting) lever front end height of this flexible connection together with the V-type tripper.

5,, it is characterized in that spreading plate is located at can producing up and down on mobile sliding part or the pushing tow roller of frame rear portion according to claim 1 or 4 described bulk material spreaders.

6, bulk material spreader according to claim 5, it is characterized in that frame (1) links together with the power jacking arm that has boom by the linkage of frame afterbody inflexiblely, frame constitutes the frame of lengthening together with the power jacking arm.

7, bulk material spreader according to claim 6, it is characterized in that to extend a rod member (22) forward from spreading plate, this rod member (22) relies on the anterior fulcrum (23) of frame (1) to support, and the front end of rod member (22) is used to measure the thickness of material of paving.

8,, it is characterized in that the flexible connection between lever front end and frame is located near the support wheel shaft according to claim 1 or 4 described bulk material spreaders.

9, bulk material spreader according to claim 4 is characterized in that the V-type tripper before spreading plate is replaced with the spiral feeding-distribution device.

10, according to claim 1 or 4 described bulk material spreaders, it is characterized in that spreading plate has compaction apparatus, compaction apparatus and spreading plate are made one.

11, according to claim 1 or 4 described bulk material spreaders, it is characterized in that to extend a rod member (22) forward from spreading plate, this rod member (22) relies on the anterior fulcrum (23) of frame (1) to support, and the front end of rod member (22) is used to measure the thickness of material of paving.