CN207958936U - Tiltable formula for improving spreading evenness assists ironing machine - Google Patents

Abstract

The utility model discloses an elevation-angle-adjustable auxiliary ironing device for improving the flatness of paving, which comprises a plurality of auxiliary ironing units arranged in sequence. The auxiliary ironing unit includes an auxiliary screed and a flange plate, and The connecting device is connected with the paver screed device, and an adjustment device for adjusting the elevation angle of the auxiliary screed unit is arranged between the auxiliary screed and the paver screed device, and the auxiliary screed is close to the paver screed device There are at least two connectors on one side of the screed. The connectors are L-shaped connectors composed of a horizontal plate and a vertical plate. The vertical plate is fixedly connected to the auxiliary screed. There are threaded holes on the horizontal plate. Adjusting bolts abutting against the rear edge of the paver screed device are arranged. The adjustable elevation angle auxiliary screed device has a simple structure and is convenient to use, and can effectively improve the paving smoothness of the road surface.

Description

Elevation-adjustable auxiliary screed for improved pavement smoothness

technical field

The utility model belongs to the technical field of paver ironing, and in particular relates to an elevation-angle-adjustable auxiliary ironing device for improving the smoothness of paving.

Background technique

In recent years, with the rapid development of expressways in our country, higher and higher requirements have been put forward for the quality of road surfaces. Flatness is one of the important indicators to evaluate the quality of pavement, and the flatness of pavement is directly related to the paving work mode of the screed device. The paving work mode of the screed device is divided into two types: forced paving and floating paving, wherein each layer of floating paving can reduce the unevenness of the original roadbed by 30%, and is widely used in paving operations.

Floating paving means that the main machine of the paver drives on the base layer, drags the screed device to float in the material flow and runs together, forming a paving layer with a certain thickness under the screed device. The ironing device in the floating state is in a dynamic balance state and floats at a certain height from the ground due to the traction force of the main engine, its own gravity, the movement resistance of the material against its advancement, and the buoyancy of the material to it. At this time, the soleplate of the screed unit forms an angle with the road surface, which is called the elevation angle. During the paving operation, if the elevation angle of the screed device can be effectively controlled so that it can return to the original elevation angle value as soon as possible after being affected and changed, the screed device will return to its original position as soon as possible and float on the original height from the ground, maintaining the original height. The thickness of the paving can improve the smoothness of the road surface.

Existing various types of paver screed devices can only satisfy a certain range of elevation angle variation due to the limitation of their structural design. However, with the development of road construction technology, new material gradations and material temperatures are constantly appearing, and some new materials are looser than traditional materials, resulting in insufficient buoyancy for the support of floating paving. When the dynamic equilibrium state of floating paving is reached, the screed The elevation angle of the paving operation is greater than the range of the design elevation angle, which seriously affects the smoothness of the paving.

Utility model content

The purpose of the utility model is to overcome the shortcomings of the above-mentioned prior art, and provide an auxiliary ironing device with adjustable elevation angle for improving the smoothness of paving. The auxiliary screed device with adjustable elevation angle has a simple structure and is convenient to use, and can effectively improve the paving smoothness of the road surface.

In order to achieve the above purpose, the technical solution adopted by the utility model is: an elevation-angle-adjustable auxiliary ironing device for improving the smoothness of paving, which is characterized in that it includes a plurality of auxiliary ironing units arranged in sequence, and the auxiliary ironing The unit includes an auxiliary screed and flange plates arranged at both ends of the auxiliary screed, the flange is connected with the paver screed through a connecting device, and the connection between the auxiliary screed and the paver screed There is an adjustment device for adjusting the elevation angle of the auxiliary screed unit, one end of the adjustment device is hinged on the paver ironing device, and the other end of the adjustment device is hinged on the auxiliary screed away from the One side of the paver screed, the auxiliary screed near the side of the paver screed is provided with at least two connecting pieces, the connecting piece is an L formed by a horizontal plate and a vertical plate The vertical plate is fixedly connected with the auxiliary screed, and the horizontal plate is provided with a threaded hole, and the threaded hole is provided with an adjusting bolt abutting against the rear edge of the paver screed.

The aforementioned auxiliary ironing device with adjustable elevation angle for improving paving smoothness is characterized in that: the adjustment device includes an adjustment sleeve, a first tie rod, a second tie rod, a tie rod seat and a tie rod ear plate, and the tie rod seat Set on the paver screed device, the tie rod ear plate is set on the auxiliary screed, one end of the first tie rod is hinged on the tie rod seat, and the other end of the first tie rod extends into the adjustment One end of the sleeve is threadedly engaged with the adjustment sleeve, one end of the second pull rod is hinged on the ear plate of the pull rod, the other end of the second pull rod extends into the other end of the adjustment sleeve and It forms a thread fit with the adjustment sleeve, and the screw threads at both ends of the adjustment sleeve rotate in opposite directions.

The aforementioned auxiliary screed device with adjustable elevation angle for improving paving smoothness is characterized in that the connection device is a vertical connection plate, and one side of the vertical connection plate is connected to the paver screed device. connection, the vertical connecting plate is provided with a first strip-shaped hole arranged vertically, and the flange plate corresponding to the vertical connecting plate is provided with a second strip-shaped hole arranged horizontally, and the first strip-shaped hole is arranged horizontally The strip-shaped holes and the second strip-shaped holes are connected in one-to-one correspondence through the first connecting bolts.

The above-mentioned auxiliary screed device with adjustable elevation angle for improving the smoothness of paving is characterized in that: the number of the first strip-shaped holes and the number of the second strip-shaped holes are two.

The above-mentioned auxiliary screed device with adjustable elevation angle for improving paving smoothness is characterized in that: the connecting device is an inclined plate, and the inclined plate is provided with obliquely arranged long holes, which are opposite to the inclined plate. A mounting hole corresponding to the elongated hole is provided on the corresponding flange plate, and the elongated hole and the mounting hole are connected by a second connecting bolt.

The above-mentioned auxiliary screed device with adjustable elevation angle for improving the smoothness of paving is characterized in that: the adjusting bolt is provided with a lock nut that abuts against the upper surface of the horizontal plate of the connecting piece.

Compared with the prior art, the utility model has the following advantages:

1. The utility model can realize the stepless adjustment of the auxiliary elevation angle of the auxiliary screed unit from being smaller than the elevation angle of the paver screed device to greater than the elevation angle of the screed device, and can adjust the power balance of floating paving according to the characteristics of various new paving materials Compensation is carried out so that the actual elevation angle of the paving operation of the screed device is within the range of the design elevation angle, so as to improve the smoothness of paving.

2. In the utility model, the number of auxiliary screed units is designed to be connected sequentially, and the types of lengths correspond to the types of screeds, which can effectively adapt to the combination of screeds with various paving widths.

3. The utility model forms a variable combined hinge point through multiple surface contacts and the suspension traction of the adjustment device. During the adjustment and change process of the elevation angle of the auxiliary screed device, the screed of the auxiliary screed and the paver screed device can be realized. The base plates are always touching and there are no boss transitions.

4. The utility model is easy to assemble and disassemble, and can be installed without changing the structure of the original ironing device, and has a wide application range for the ironing device.

The technical solutions of the present utility model will be further described in detail through the drawings and embodiments below.

Description of drawings

Figure 1 is a schematic diagram of the overall structure of the utility model.

Fig. 2 is a sectional view along line A-A of Fig. 1 .

Fig. 3 is a schematic structural view of the auxiliary ironing unit of the present invention.

Fig. 4 is a schematic view of the utility model in use.

Fig. 5 is a schematic diagram of the structure of the vertical connecting plate of the present invention.

Fig. 6 is a schematic diagram of the structure of the inclined plate of the present invention.

Explanation of reference signs:

1—auxiliary screed unit; 1-1—auxiliary screed; 1-2—flange plate;

1-2-1—the second strip hole; 2—vertical connecting plate; 2-1—the first strip hole;

3—inclined plate; 3-1—long hole; 4—adjusting device;

4-1—adjusting sleeve; 4-2—first pull rod; 4-3—second pull rod;

4-4—tie rod seat; 4-5—tie rod ear plate; 5—connecting piece;

5-1—horizontal board; 5-2—vertical board; 6—paver screed device;

6-1—back edge; 6-2—paver screed; 7—adjusting bolt;

8—lock nut.

Detailed ways

As shown in Fig. 1, Fig. 2 and Fig. 3, an elevation-angle-adjustable auxiliary screed device for improving paving smoothness includes a plurality of auxiliary screed units 1 arranged in sequence, and the auxiliary screed units 1 include The auxiliary screed 1-1 and the flange plates 1-2 arranged at both ends of the auxiliary screed 1-1, the flange plate 1-2 is connected with the paver screed device 6 through a connecting device, the An adjustment device 4 for adjusting the elevation angle of the auxiliary screed unit 1 is provided between the auxiliary screed 1-1 and the paver screed device 6, and one end of the adjustment device 4 is hinged on the paver screed. On the device 6, the other end of the adjustment device 4 is hinged on the side of the auxiliary screed 1-1 away from the paver screed 6, and the auxiliary screed 1-1 is close to the paver screed One side of 6 is provided with at least two connectors 5, and described connector 5 is the L-shaped connector that is made of horizontal board 5-1 and vertical board 5-2, and described vertical board 5-2 and auxiliary The screed 1-1 is fixedly connected, and the horizontal plate 5-1 is provided with a threaded hole, and the adjusting bolt 7 abutting against the rear edge 6-1 of the paver screed device 6 is arranged in the threaded hole.

In this embodiment, when the auxiliary screed device is in use, it is connected to the rear side of the paver screed device 6. When paving traditional materials, the screed elevation angle is within the design range of the paving operation. The elevation angle of the screed device is zero and parallel to the paved road surface. At this time, the auxiliary screed device can perform secondary smoothing on the paved road surface. On the one hand, it can effectively resist the increase of the elevation angle of the paver ironing device 6 due to the local interference of the main machine driving road, and can significantly improve the smoothness of the pavement; when paving loose new materials, the auxiliary ironing device can Make adjustments to compensate the dynamic balance of floating paving, ensure that the elevation angle of the paver screed device 6 during floating paving operations remains at the optimal elevation angle limited by its own structure, and improve the construction smoothness of different paving materials .

As shown in Figure 2, the adjustment device 4 includes an adjustment sleeve 4-1, a first pull rod 4-2, a second pull rod 4-3, a pull rod seat 4-4 and a pull rod ear plate 4-5, and the pull rod seat 4-4 is arranged on the screed device 6 of the paver, the tie rod lug 4-5 is arranged on the auxiliary screed 1-1, and one end of the first tie rod 4-2 is hinged on the tie rod seat 4- 4, the other end of the first pull rod 4-2 extends into one end of the adjustment sleeve 4-1 and forms a threaded fit with the adjustment sleeve 4-1, and one end of the second pull rod 4-3 Hinged on the pull rod ear plate 4-5, the other end of the second pull rod 4-3 extends into the other end of the adjustment sleeve 4-1 and forms a threaded fit with the adjustment sleeve 4-1, The screw threads at both ends of the adjusting sleeve 4-1 rotate in opposite directions.

In this embodiment, referring to Fig. 4, the elevation angle of the auxiliary ironing unit 1 is effectively adjusted through the adjusting device 4, specifically: by rotating the adjusting sleeve 4-1, using the rotating adjusting sleeve 4-1 and The threaded cooperation of the first pull rod 4-2, and the threaded cooperation of the rotation adjustment sleeve 4-1 and the second pull rod 4-3, thereby driving the auxiliary screed 1-1 around the side close to the paver screed device 6 Rotate, and then realize the adjustment of the elevation angle of the auxiliary ironing unit 1. Wherein, the contact between the auxiliary screed 1-1 and the paver screed 6-2 of the paver screed device 6 and the contact between the adjusting bolt 7 and the trailing edge 6-1 of the paver screed device 6, Under the traction of the adjustment device 4, a variable combined hinge point is formed, and during the adjustment and change of the elevation angle of the auxiliary screed device, the auxiliary screed 1-1 and the paver screed 6-1 of the paver screed device 6 can be realized. 2 The bottom plates are always in contact and there is no boss transition.

1 and 5, the connection device is a vertical connection plate 2, one side of the vertical connection plate 2 is connected with the paver screed device 6, and the vertical connection plate 2 is provided with The first strip-shaped hole 2-1 is arranged vertically, and the second strip-shaped hole 1-2-1 arranged horizontally is opened on the flange plate 1-2 corresponding to the vertical connecting plate 2. The strip-shaped hole 2-1 and the second strip-shaped hole 1-2-1 are connected in one-to-one correspondence by first connecting bolts.

In this embodiment, before the adjustment device 4 adjusts the elevation angle of the auxiliary ironing unit 1, the first connecting bolt is loosened, and the vertically arranged first bar-shaped hole 2-1 and the horizontally arranged first strip-shaped hole 2-1 are used to adjust the elevation angle of the auxiliary ironing unit 1. The two strip-shaped holes 1-2-1 can effectively adapt to the rotation adjustment of the auxiliary ironing unit 1 . After the adjustment is completed, tighten the first connecting bolt.

In this embodiment, the number of the first strip-shaped hole 2-1 and the second strip-shaped hole 1-2-1 are two, that is, the first strip-shaped hole 2-1 and the second strip-shaped hole 1-2-1 is multiple in number at one connection.

1 and 6, the connecting device is an inclined plate 3, the inclined plate 3 is provided with obliquely arranged elongated holes 3-1, and the flange plate 1-2 corresponding to the inclined plate 3 An installation hole corresponding to the elongated hole 3-1 is provided, and the elongated hole 3-1 and the installation hole are connected by a second connecting bolt.

In this embodiment, before the adjustment device 4 adjusts the elevation angle of the auxiliary ironing unit 1, the second connecting bolt is loosened, and the obliquely arranged long holes 3-1 can effectively adapt to the auxiliary ironing unit. 1 in turn to adjust. After the adjustment is completed, tighten the second connecting bolt.

As shown in FIG. 2 , the adjusting bolt 7 is provided with a lock nut 8 abutting on the upper surface of the horizontal plate 5 - 1 of the connecting piece 5 .

In this embodiment, by rotating the adjusting bolt 7, the adjusting bolt 7 is used to cooperate with the thread transmission of the threaded hole on the horizontal plate 5-1, so that when the auxiliary ironing unit 1 is installed, the elevation angle of the auxiliary ironing device can be adjusted and connected. Before the second bolts of the vertical connecting plate 2 and the inclined plate 3 of the device are tightened, the lower edge of the side edge of the auxiliary screed plate 1-1 of the auxiliary screed unit 1 close to the side of the paver screed device 6 in the height direction Perform effective adjustment to make it flush with the bottom of the paver screed 6-2, and then lock and fix the position of the adjusting bolt 7 through the lock nut 8.

The above are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any simple modifications, changes and equivalent structural transformations made to the above embodiments according to the technical essence of the present utility model still belong to Within the scope of protection of the technical solution of the utility model.

Claims (6)

1. the tiltable formula auxiliary ironing machine for improving spreading evenness, it is characterised in that：It is set gradually including multiple Auxiliary ironing unit (1), auxiliary ironing unit (1) includes auxiliary screed (1-1) and is arranged in auxiliary ironing The flanged plate (1-2) at the both ends plate (1-1), the flanged plate (1-2) are connected by attachment device with ironing device of spreading machine (6) It connects, is provided between the auxiliary screed (1-1) and ironing device of spreading machine (6) for being faced upward to auxiliary ironing unit (1) One end of the regulating device (4) that angle is adjusted, the regulating device (4) is hinged on the ironing device of spreading machine (6), institute The other end for stating regulating device (4) is hinged on a side of the auxiliary screed (1-1) far from ironing device of spreading machine (6), The auxiliary screed (1-1) is provided at least two connectors (5) close to a side of ironing device of spreading machine (6), described Connector (5) is the L-shaped connector being made of level board (5-1) and vertical plate (5-2), and the vertical plate (5-2) is pressed with auxiliary Tablet (1-1) is fixedly connected, and threaded hole is offered on the level board (5-1), is provided with to be connected in the threaded hole and is paved Machine ironing machine (6) adjusting bolt (7) on (6-1) afterwards.

2. the tiltable formula auxiliary ironing machine according to claim 1 for improving spreading evenness, feature exists In：The regulating device (4) include adjust sleeve (4-1), the first pull rod (4-2), the second pull rod (4-3), draw-bar seat (4-4) and Pull rod otic placode (4-5), the draw-bar seat (4-4) are arranged on ironing device of spreading machine (6), pull rod otic placode (4-5) setting On auxiliary screed (1-1), one end of first pull rod (4-2) is hinged on the draw-bar seat (4-4), and described first draws The other end of bar (4-2) stretches into one end of the adjusting sleeve (4-1) and constitutes screw-thread fit with the adjusting sleeve (4-1), One end of second pull rod (4-3) is hinged on the pull rod otic placode (4-5), and the other end of second pull rod (4-3) is stretched Enter the other end of the adjusting sleeve (4-1) and constitutes screw-thread fit, the adjusting sleeve (4- with the adjusting sleeve (4-1) 1) rotation direction of thread at both ends is opposite.

3. the tiltable formula auxiliary ironing machine according to claim 1 for improving spreading evenness, feature exists In：The attachment device is vertical connecting plates (2), a side and ironing device of spreading machine (6) phase of the vertical connecting plates (2) It connects, the first strip-shaped hole (2-1) laid vertically is offered on the vertical connecting plates (2), with the vertical connecting plates (2) phase The second strip-shaped hole (1-2-1) of horizontal layout, first strip-shaped hole (2-1) and are offered on corresponding flanged plate (1-2) Two strip-shaped holes (1-2-1) are connected one to one by the first connection bolt.

4. the tiltable formula auxiliary ironing machine according to claim 3 for improving spreading evenness, feature exists In：The quantity of first strip-shaped hole (2-1) and the second strip-shaped hole (1-2-1) is two.

5. the tiltable formula auxiliary ironing machine according to claim 1 for improving spreading evenness, feature exists In：The attachment device is hang plate (3), and the strip hole (3-1) for tilting and laying is provided on the hang plate (3), and described Mounting hole corresponding with the strip hole (3-1), the strip are provided on hang plate (3) corresponding flanged plate (1-2) Hole (3-1) is connected with the mounting hole by the second connection bolt.

6. the tiltable formula auxiliary ironing machine according to claim 1 for improving spreading evenness, feature exists In：The locking nut (8) of the upper surface level board (5-1) for being connected to connector (5) is provided on the adjusting bolt (7).