CN217231377U

CN217231377U - Multistage flexible screed interstage supporting mechanism

Info

Publication number: CN217231377U
Application number: CN202220086565.6U
Authority: CN
Inventors: 王秀丽; 姜善华; 王安东; 霍飞; 王勤哲; 张广收; 林建行
Original assignee: Aurige Technology Co ltd
Current assignee: Aurige Technology Co ltd
Priority date: 2022-01-13
Filing date: 2022-01-13
Publication date: 2022-08-19
Anticipated expiration: 2032-01-13

Abstract

A multi-stage telescopic screed interstage supporting mechanism is used for interstage connection and support work of a telescopic screed, the telescopic screed comprises a main stage working section located in the middle and a first secondary working section and a second secondary working section, two ends of the main stage working section and the second secondary working section are sequentially and telescopically connected, the supporting mechanism comprises a vertical plate and two connecting rods, the vertical plate is vertically arranged, the lower end of the vertical plate is connected with the first secondary working section, the upper ends of the two connecting rods are hinged with the upper end of the vertical plate, the lower end of the two connecting rods is obliquely directed to the rear of the mechanism, one of the two connecting rods is hinged with the main stage working section, the other connecting rod is hinged with the second secondary working section, the connection strength of each stage of the telescopic screed is effectively increased, and meanwhile, the connecting rods are obliquely arranged in a mode, so that when the telescopic screed presents a movement trend of bending towards the rear side in a working state, the connecting rods can generate good tensioning effect on each working section under the supporting effect of the vertical plate, the influence on the road surface direct connection caused by deformation is effectively prevented.

Description

Multistage flexible screed interstage supporting mechanism

Technical Field

The utility model relates to a road construction technical field specifically is a multistage flexible screed interstage supporting mechanism.

Background

The screed is the core part of road surface paver, the screed of excellent performance can be built out levelly and smoothly, closely knit road surface structure, realize high precompression effect, satisfy the requirement of customer to road surface profile, for satisfying the market demand at present, guarantee that it has great service length, the screed adopts telescopic structure more, but telescopic connected mode, when providing great working length, make the mechanical connection intensity between each stage relatively poor, the screed is for guaranteeing high precompression, existing higher effort between its and the ground, simple telescopic connection can't satisfy high precompression requirement.

Chinese patent CN201922035366.3 discloses an ironing device with a support rod system, wherein a support rod is provided between the stages of the ironing machine, and the two ends of the support rod are hinged with the two adjacent working sections respectively, thereby improving the inter-stage connection strength of the retractable ironing plate to a certain extent, but the support mechanism on the ironing device is linear, because the support mechanism requires the retractable ironing plate to have higher pressure stress on the ground when in use, the outer working section is easy to be stressed to bend backwards and laterally under the action of friction and paving materials, and the linear use mode makes the device have poor capability of resisting backward bending; meanwhile, the supporting rod is directly hinged with the working section and is of a telescopic structure, so that the ironing device can be contracted due to the design mode, the working section outside the ironing device can not be completely contracted, the contraction stroke of the ironing device is seriously influenced, and the practicability is poor.

SUMMERY OF THE UTILITY MODEL

Because self gravity and road surface material resistance lead to warping comparatively seriously when using for solving above-mentioned current flexible screed, but strutting arrangement is mostly the linear type, can not effectively solve flexible screed and to the back bend of inclining, and strutting arrangement's the problem that the flexible work of flexible screed is seriously influenced in setting up, the utility model provides a multistage flexible screed interstage supporting mechanism.

The utility model discloses technical scheme as follows:

the utility model provides a multistage flexible screed interstage supporting mechanism for flexible screed's interstage connection support work, flexible screed includes a plurality of working sections, the working section is including the primary working section that is located flexible screed middle part and lie in its both ends one or a plurality of secondary working section that connects telescopically in proper order, makes it save great space when accomodating, and when using, and multistage flexible structure can guarantee that it has great use length, greatly increased screed's practicality.

Further, supporting mechanism includes riser and connecting rod, the riser is vertical arranges and the lower extreme is connected with primary working section or secondary working section, and connects the working section of riser for supporting the working section, connecting rod one end is articulated with the riser upper end, the directional supporting mechanism rear of other end slope, and articulated with the adjacent working section that supports the working section, through supporting mechanism couples together the adjacent two-stage of multistage flexible screed, has increased flexible screed's grade level joint strength, and the setting that the connecting rod slope was arranged simultaneously makes it can produce better tensioning effect to secondary working section, has effectively prevented to lead to secondary working section to produce deformation backward because of friction.

When the telescopic ironing plate is contracted, the arc-shaped design of the vertical plate does not influence the contraction of the connecting rod, so that the secondary working section can have a better contraction effect.

The telescopic ironing plate is characterized in that when the telescopic ironing plate is in a limit opening state, the included angle between the connecting rod and the telescopic direction of the telescopic ironing plate is 20-45 degrees from the top view of the supporting mechanism, when the included angle is too small, the projection of the connecting rod on the telescopic ironing plate tends to be parallel to the telescopic direction of the telescopic ironing plate, the tensioning effect of the connecting rod on each working section is seriously influenced, and when the included angle is too large, the supporting strength of the connecting rod on each working section is influenced, so that the telescopic ironing plate is most suitable when the included angle is 20-45 degrees.

The multistage telescopic screed plate interstage supporting mechanism comprises a main working section located in the middle of the telescopic screed plate, a first secondary working section and a second secondary working section are sequentially and telescopically connected to two ends of the main working section, the vertical plates are connected with the second secondary working section, the number of the connecting rods is two, two ends of one connecting rod are respectively and universally connected with the upper ends of the vertical plates and the main working section, and two ends of the other connecting rod are respectively and universally connected with the upper ends of the vertical plates and the second secondary working section.

Further, the connecting rod includes the telescopic link, and works as when first secondary working section and second secondary working section extend to ultimate length, the connecting rod also is in the ultimate elongation state, guarantees the connecting rod produces effectual taut effect to the working section rather than being connected.

According to the multistage telescopic screed interstage supporting mechanism, the outer ring of the upper end of the vertical plate extends outwards to form the connecting table, the inner ring of the upper end of the vertical plate is provided with the notch table, the horizontal height of the connecting table is larger than that of the notch table, one end of each of the two connecting rods is connected with the connecting table and the notch table respectively, and the connecting table and the notch table are arranged so that the connecting rods connected with the connecting table cannot influence each other when being contracted and retracted.

According to the multistage telescopic screed interstage supporting mechanism, when the telescopic screed is in the limit spreading state, the included angle between the connecting rod and the horizontal direction is 20-40 degrees from the front view of the supporting mechanism, so that the vertical plate and the supporting rod form a triangular structure, the supporting mechanism is guaranteed to have good stability, meanwhile, the connecting rod can be designed in a mode of being capable of generating a good tensioning effect on the working section connected with the connecting rod, deformation of the secondary working section is effectively prevented, and the using effect of the supporting mechanism is guaranteed.

The beneficial effects of the utility model reside in that: (1): the arrangement of the supporting mechanism effectively increases the connection strength between stages of the telescopic ironing plate and ensures that the telescopic ironing plate has good use effect;

(2): the vertical arrangement of the vertical plates, one end of each connecting rod is connected with the upper end of each vertical plate, and one end of each connecting rod is hinged with the adjacent working section, so that the connecting rods can generate a good tensioning effect on the adjacent working sections under the supporting effect of the vertical plates, the connecting strength between the working sections for installing the vertical plates and the adjacent working sections is effectively increased, and the arc design of the vertical plates is matched, so that the telescopic ironing plates can be prevented from being contracted when the connecting rods provide a good tensioning effect for the ironing plates in a spreading state, and the practicability of the supporting mechanism is effectively increased;

(3): connecting rod one end is connected with the riser, and the other end slope is to the mode that sets up at supporting mechanism rear, makes flexible screed is under operating condition, and when the motion trend of bending to the rear side is presented because of friction and road surface material block the effect, the connecting rod can produce good take-up to each working section, has effectively prevented to directly link the influence that produces because of deformation to the road surface.

Drawings

The aspects and advantages of the present application will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention.

In the drawings:

FIG. 1 is a schematic structural view of a support mechanism according to an embodiment;

FIG. 2 is a rear view of the support mechanism in the embodiment;

FIG. 3 is a side view of FIG. 2;

FIG. 4 is a schematic view showing the connection of the supporting mechanism in the embodiment;

FIG. 5 is a schematic structural view of a riser in the example;

FIG. 6 is a schematic structural view of the first extendable rod of the embodiment;

the components represented by the reference numerals in the figures are:

1. the riser, 11, connect the platform, 12, breach platform, 13, the connecting hole, 2, first telescopic link, 21, first sleeve pipe, 211, first spindle nose, 212, first spin, 22, first connecting rod, 221, second spindle nose, 222, the second spin, 3, the second telescopic link, 31, the second sleeve pipe, 32, the second connecting rod, 4, flexible ironing board, 41, the major-order working segment, 42, first minor-order working segment, 43, the second minor-order working segment.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. It should be noted that these embodiments are provided so that this disclosure can be more completely understood and fully conveyed to those skilled in the art, and the present disclosure may be implemented in various forms without being limited to the embodiments set forth herein.

Examples

The embodiment provides a multi-stage telescopic screed interstage supporting mechanism, referring to fig. 4, the multi-stage telescopic screed interstage supporting mechanism is used for the interstage connecting and supporting work of the telescopic screed 4, the telescopic screed 4 comprises a main stage working section 41 located in the middle, two ends of the main stage working section 41 are telescopically connected with a first secondary working section 42, one end, far away from the main stage working section 41, of the first secondary working section 42 is telescopically connected with a second secondary working section 43, so that the first secondary working section can save a large space when being stored, in addition, in the use process, the multi-stage telescopic structure can ensure that the multi-stage telescopic screed has a large use length, the practical performance of the screed is greatly increased, the supporting mechanism is connected between the main stage working section 41 and the secondary working sections, the connection strength between stages of the telescopic screed 4 is effectively increased, and the good use effect is ensured.

In this embodiment, referring to fig. 1, the supporting mechanism includes two vertical plates 1 and two connecting rods, the vertical plates 1 are vertically arranged, and the lower ends of the vertical plates are connected to the first secondary working section 42, one end of one connecting rod is hinged with the upper end of the vertical plate 1, the other end of the connecting rod is inclined to the rear of the supporting mechanism, and is hinged with the primary working section 41, one end of the other connecting rod is hinged with the upper end of the vertical plate 1, the other end of the other connecting rod obliquely points to the rear part of the supporting mechanism and is hinged with the second secondary working section 43, the adjacent two stages of the multi-stage telescopic ironing plates 4 are connected through the supporting mechanism, the interstage connection strength of the telescopic ironing plates 4 is increased, the setting that the connecting rod slope was arranged simultaneously makes it can produce better straining effect to secondary working section, has effectively prevented to lead to secondary working section to produce backward deformation because of friction effect or pavement material's the effect of blockking.

As a preferred scheme, when the telescopic screed plate 4 is in a completely unfolded state, when viewed from a top view of the supporting mechanism, an included angle between the connecting rod and the telescopic direction of the telescopic screed plate 4 is 20-45 degrees, and when the included angle is 32 degrees, the most suitable included angle is obtained, when the included angle is too small, the projection of the connecting rod on the telescopic screed plate 4 tends to be parallel to the telescopic direction of the telescopic screed plate 4, so that the tensioning effect of the connecting rod on each working section is seriously influenced, and when the included angle is too large, the supporting strength of the connecting rod on each working section is influenced.

It should be noted that the connecting rod is a telescopic rod, and when the first secondary working section 42 and the second secondary working section 43 extend to the limit length, the connecting rod is also in the limit extension state, so as to ensure that the connecting rod generates an effective tensioning and fixing effect on the working sections connected with the connecting rod.

Further, 1 shape of riser includes the arcuation, and the directional supporting mechanism rear of arc opening, when flexible screed 4 contracts, the 1 curved design of riser makes it can not influence the shrink of connecting rod, and then makes secondary working section can have better shrink effect.

Further, combine fig. 3, fig. 5, the upper end of 1 outer lane of riser outwards extends and is equipped with

connection platform

11, and 1 inner lane of riser inwards caves in and is equipped with breach platform 12, just the level of connecting platform 11 is greater than breach platform 12 level, the connecting rod includes first telescopic link 2 and second

telescopic link

3, 2 upper ends of first telescopic link are articulated with breach platform 12, and the lower extreme is articulated with

primary operation section

41, 3 upper ends of second telescopic link are articulated with being connected platform 11, and the lower extreme is articulated with second secondary operation section 43, connects the setting of platform 11 and breach platform 12, makes the connecting rod of being connected with it when the shrink with retrieve, can not exert an influence each other, 1 lower extreme of riser still is equipped with a plurality of connecting holes 13, through connecting hole 13 is vertical to be connected with first secondary operation section 42.

Specifically, referring to fig. 6, the first telescopic rod 2 includes a first sleeve 21 and a first connecting rod 22 telescopically connected to the first sleeve 21, one end of the first sleeve 21, which is far away from the first connecting rod 22, is provided with a first connecting device, the first connecting device includes a first spindle head 211 and a first rolling ball 212, the first rolling ball 212 is connected to the notch table 12 through a first clamping block, one end of the first spindle head 211 is connected to the first sleeve 21, and the other end of the first spindle head 211 is universally connected to the first rolling ball 212; the first connecting rod 22 is far away from first sleeve pipe 21 one end and is equipped with second connecting device, second connecting device includes second axle head 221 and second spin 222, second spin 222 passes through the connecting block and is connected with primary work section 41, second axle head 221 one end is connected with first connecting rod 22, the other end and second spin 222 universal connection, design like this for telescopic screed 4 supporting mechanism has better taut supporting effect to each work section when strutting, and when each work section shrink simultaneously, supporting mechanism's being provided with can not exert an influence to its shrink effect, has effectively increased telescopic screed 4 connection strength and result of use between each stage.

Further, the second telescopic rod 3 includes a second sleeve 31 and a second connecting rod 32, the second sleeve 31 is telescopically connected to the first sleeve 21, the second sleeve 31 is connected to the connecting table 11 via a universal ball, the second connecting rod 32 is connected to the second secondary working section 43 via a universal ball, and the specific connection mode is the same as that of the first telescopic rod 2, which is not described herein again.

As preferred, combine fig. 2, when flexible screed 4 is in the limit state of strutting, follow the supporting mechanism elevation view, the connecting rod is 30 with the contained angle of horizontal direction, makes riser 1 and bracing piece form a triangle-shaped structure, has guaranteed supporting mechanism has good stability, and such design simultaneously can make the connecting rod produce better taut effect to the working section of being connected with it, has effectively prevented the deformation of secondary working section, has guaranteed supporting mechanism's result of use

As another embodiment, when the retractable screed plate 4 is a two-stage retractable screed plate, and both ends of the main working section are only telescopically connected with the first secondary working section 42, the lower end of the vertical plate 1 is connected with the main working section 41, the upper end of the connecting rod is connected with the universal ball at the upper end of the vertical plate 1, and the lower end of the connecting rod is connected with the universal ball at the first secondary working section 42, so that the device has high applicability.

The above description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The multi-stage telescopic screed plate interstage supporting mechanism is used for interstage connection supporting work of a telescopic screed plate, and is characterized in that the telescopic screed plate (4) comprises a plurality of working sections, and each working section comprises a main working section (41) located in the middle of the telescopic screed plate (4) and one or a plurality of secondary working sections located at two ends of the main working section and sequentially connected in a telescopic mode;

the supporting mechanism comprises a vertical plate (1) and a connecting rod, wherein the vertical plate (1) is arranged, the lower end of the vertical plate is connected with a primary working section (41) or a secondary working section, the working section of the vertical plate (1) is connected for supporting the working section, one end of the connecting rod is hinged to the upper end of the vertical plate (1), the other end of the connecting rod is inclined to the rear of the supporting mechanism, and the connecting rod is hinged to an adjacent working section of the supporting working section.

2. A multi-stage telescopic screed inter-stage support mechanism according to claim 1, characterised in that the riser (1) shape comprises an arc with an arc opening directed towards the rear of the support mechanism.

3. A multi-stage telescopic screed inter-stage support mechanism according to claim 2, characterised in that the connecting rod makes an angle of 20-45 ° with the telescopic direction of the telescopic screed (4) when the telescopic screed (4) is in the extreme extended state, as seen from the support mechanism top view.

4. The multi-stage telescopic screed interstage support mechanism according to claim 1, wherein the multi-stage telescopic screed (4) comprises a main stage working section (41) located in the middle of the telescopic screed (4), a first secondary working section (42) and a second secondary working section (43) are sequentially and telescopically connected to two ends of the main stage working section (41), the vertical plate (1) is vertically connected with the second secondary working section (43), two connecting rods are arranged, two ends of one connecting rod are respectively and universally connected with the upper end of the vertical plate (1) and the main stage working section (41), and two ends of the other connecting rod are respectively and universally connected with the upper end of the vertical plate (1) and the second secondary working section (43).

5. The multi-stage telescopic screed inter-stage support mechanism according to claim 4, wherein the connecting rod comprises a telescopic rod, and when the first and second secondary working sections (42, 43) are extended to an extreme length, the connecting rod is also in an extreme elongation state.

6. The interstage support mechanism for the multistage retractable screed according to claim 1, wherein a connecting table (11) extends outwards from an outer circle of an upper end of the vertical plate (1), a gap table (12) is arranged on an inner circle of an upper end of the vertical plate (1), the level of the connecting table (11) is greater than that of the gap table (12), and one ends of two connecting rods are respectively connected with the connecting table (11) and the gap table (12).

7. A multi-stage telescopic screed inter-stage support mechanism according to claim 1, characterised in that the connecting rod is at an angle of 20-40 ° to the horizontal when the telescopic screed (4) is in the extreme extended condition, as seen from the support mechanism front view.