CN216640163U

CN216640163U - Leveling component of screed of paver

Info

Publication number: CN216640163U
Application number: CN202123120420.8U
Authority: CN
Inventors: 李钰莹
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-12-13
Filing date: 2021-12-13
Publication date: 2022-05-31
Anticipated expiration: 2031-12-13

Abstract

The utility model discloses a screed plate leveling assembly of a paver, which comprises leveling arms and a screed plate, wherein the rear ends of the two leveling arms are respectively and rigidly connected with the two sides of the screed plate, the two ends of each leveling arm are respectively connected with a fixed point arranged on a host machine through a leveling oil cylinder and a leveling arm lifting oil cylinder, the free end of each leveling arm is provided with a leveling oil cylinder, and the leveling arm lifting oil cylinder and the leveling oil cylinder are both arranged on the host machine through host machine fixed points arranged at the upper ends of the leveling arms; the device also comprises a leveling instrument, wherein the leveling instrument is arranged on the leveling arm through a leveling instrument support, an adjusting support is further arranged on the leveling instrument, and the thickness signal is transmitted to the leveling instrument through the adjusting support; the leveling instrument is provided with a switch, an upper indicator light and a lower indicator light, and the upper indicator light and the lower indicator light are used for displaying the leveling state of the leveling instrument. The utility model can achieve the stability of elevation angle without moving for a long distance during leveling, and the paved road has higher flatness and smoothness.

Description

Screed leveling assembly of paver

Technical Field

The utility model relates to the technical field of pavers, in particular to a leveling assembly of a screed plate of a paver.

Background

The paver is one of pavement construction machines, can uniformly pave various top-matched asphalt concrete or stabilized soil base layer stabilizing materials on a roadbed, is widely applied to various pavement and roadbed construction operations, adopts full hydraulic drive, microcomputer control and automatic leveling technology, has high automation degree and convenient operation, can better ensure the leveling degree and paving quality of the pavement, and is a preferred machine for pavement construction.

The screed is one of the main parts of the paver, is always in a "floating state" during the paving operation, namely freely moves on the paving material, the self weight of the screed is determined by the paving thickness, the elevation angle of the screed (the included angle alpha between the bottom plate of the screed and the paved road surface) and the density of the paved material are in a stress balance state, namely: gravity G of the screed, backward friction force F, supporting force N of the paving material and traction force F of the main machine. The gravity G and the friction force F are basically stable, the traction force F and the supporting force N of the main machine are changed and form proportional change along with the change of the thickness of the paved material, namely the elevation angle is in direct proportion to the paving thickness, the larger the elevation angle is, the larger the thickness is, so that the stability of the paved material and the smoothness of the pavement are realized, and the control of the elevation angle is particularly critical.

The traditional paver needs to advance to a long distance to reach the stability of elevation angle when making level to the road surface of paving is highly uneven, needs the manual work to repair, and the road surface roughness and the smooth finish of paving all can't reach the standard like this, and is hard moreover consuming time.

SUMMERY OF THE UTILITY MODEL

In order to overcome the disadvantages of the prior art, the present invention is directed to a screed leveling assembly for a paving machine that solves the problems noted above in the background.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the screed plate leveling assembly of the paver comprises leveling arms and a screed plate, wherein the rear ends of the two leveling arms are respectively and rigidly connected with the two sides of the screed plate, the two ends of each leveling arm are respectively connected with fixing points arranged on a host machine through a leveling oil cylinder and a leveling arm lifting oil cylinder, the free ends of the leveling arms are provided with leveling oil cylinders, and the leveling arm lifting oil cylinders and the leveling oil cylinders are both installed on the host machine through host machine fixing points arranged at the upper ends of the leveling arms; the device also comprises a leveling instrument, wherein the leveling instrument is arranged on the leveling arm through a leveling instrument support, an adjusting support is further arranged on the leveling instrument, and the thickness signal is transmitted to the leveling instrument through the adjusting support; the leveling instrument is provided with a switch, an upper indicator light and a lower indicator light, and the upper indicator light and the lower indicator light are used for displaying the leveling state of the leveling instrument.

Preferably, the adjusting support comprises a rotating shaft, an adjusting arm and a sliding rod, one end of the rotating shaft is connected with the leveling instrument, the other end of the rotating shaft is connected with the top end of the adjusting arm, the bottom end of the adjusting arm is connected with the sliding rod, and the sliding rod is used for being matched with the reference steel wire to feed back signals to the leveling instrument.

More preferably, the leveling device further comprises an electric control system, and the electric control system adjusts the position of the sliding rod by adjusting the rotation angle of the rotating shaft and thus adjusting the position of the leveling instrument.

Preferably, the ironing device further comprises a foot board, wherein the foot board is detachably arranged on the ironing board and is connected with the ironing board through a sliding piece, so that the foot board can slide along the width direction of the ironing board.

Preferably, the leveling device further comprises a sensor and a controller, wherein the sensor is used for detecting the height of the leveling arm and sending a detection signal to the controller, and the controller processes the detection signal and sends a control signal to the leveling arm lifting oil cylinder and the leveling oil cylinder.

More preferably, the leveling instrument is further provided with a precision knob.

Compared with the prior art, the utility model has the following beneficial effects:

the control of the elevation angle of the paver is realized by an automatic leveling instrument which is an important part of the paver, has a certain leveling function and has no adjustment to the flatness of the pavement and the design height of the pavement. The leveling instrument consists of an upper indicator light switch, a lower indicator light switch, a precision adjusting knob, a rotating shaft, an adjusting arm, a sliding bar, a sliding shoe and the like, wherein the adjusting arm is fixed on the adjusting shaft and is linked with the adjusting shaft.

When the machine is used for paving, the main machine walks on a rugged road surface, the traction point of the leveling arm is raised when the machine goes to a high point, the elevation angle is increased, the paved road surface has the tendency of going up from a reference surface, meanwhile, the leveling instrument and the sliding bar on the sliding reference steel wire of the leveling instrument going up from the reference surface are downward relative to the leveling instrument, at the moment, the indicator lamp below the leveling instrument is on, the processor processes the leveling oil cylinder which is extended properly, the leveling arm goes downward, the elevation angle is reduced, and the paved road surface has the tendency of falling back to the reference surface. When the host machine moves to the bottom point, the adjustment process of the leveling instrument is similar to the mode; the pavement paved by the method is smooth and clean.

An indicator lamp on the leveling instrument is on, a signal is sent out to control the shrinkage of the leveling oil cylinder, the leveling arm moves upwards, the elevation angle is increased, and a lower indicator lamp is on; on the contrary, the upper and lower indicator lamps are not on when the leveling instrument adjusting arm and the lower plane of the leveling instrument form a certain included angle, the leveling instrument does not send any signal and is in a middle position, and the leveling instrument is in a critical state at the moment.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention.

Fig. 2 is a schematic view of the installation of the leveling instrument of the embodiment of the present invention.

In the figures, the various reference numbers are:

1-ironing board; 2-leveling the arm; 3-screed sole plate; 4-a foot pedal; 5-leveling arm lifting oil cylinder; 6-leveling instrument; 61-a fixed seat; 62-an upper indicator light; 63-lower indicator light; 64-a switch; 65-precision knob; 7-adjusting the support; 71-a rotation axis; 72-an adjustment arm; 73-a slide bar; 8-host fixation point; 9-oil pipe; 10-host drawing point; 11-a reference steel wire; 12-leveling oil cylinder; 13-host machine leveling arm traction slideway; 14-leveling instrument support.

Detailed Description

In order to more clearly illustrate the present invention, the present invention will be described in further detail below with reference to examples and the accompanying drawings. It is to be understood by persons skilled in the art that the following detailed description is illustrative and not restrictive, and is not to be taken as limiting the scope of the utility model.

In the description of the present invention, it should be noted that the terms "inside", "outside", "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, and integral connections; can be mechanically or electrically connected; they may be directly connected to each other, indirectly connected to each other through an intermediate member, or connected to each other through the inside of two members. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Example (b):

as shown in fig. 1-2, an ironing board leveling assembly of a paver comprises leveling arms 2 and an ironing board 1, wherein the rear ends of the two leveling arms 2 are respectively and rigidly connected with the two sides of the ironing board 1, the two ends of each leveling arm 2 are respectively connected with fixing points arranged on a host machine through a leveling oil cylinder 12 and a leveling arm lifting oil cylinder 5, the free end of each leveling arm 2 is provided with the leveling oil cylinder 12, the leveling arm lifting oil cylinder 5 and the leveling oil cylinder 12 are both installed on the host machine through a host machine fixing point 8 arranged on the upper end, the host machine fixing point 8 can slide in a host machine leveling arm traction slide way 13 to change the relative position, and oil pipes 9 are arranged on the leveling arm lifting oil cylinder 5 and the leveling oil cylinder 12 to supply oil in an external connection manner; the device also comprises a leveling instrument 6, wherein the leveling instrument 6 is arranged on the leveling arm 2 through a leveling instrument support 14, the leveling instrument 6 is also provided with an adjusting support 7, and a thickness signal is transmitted to the leveling instrument 6 through the adjusting support 7; the leveling instrument 6 is provided with a switch 64, an accuracy knob 65, an upper indicator lamp 62 and a lower indicator lamp 63, and the upper indicator lamp 62 and the lower indicator lamp 63 are used for displaying the leveling state of the leveling instrument 6.

The leveling device further comprises a sensor and a controller, wherein the sensor is used for detecting the height of the leveling arm 2 and sending a detection signal to the controller, and the controller processes the detection signal and sends control signals to the leveling arm lifting oil cylinder 5 and the leveling oil cylinder 12.

The adjusting bracket 7 comprises a rotating shaft 71, an adjusting arm 72 and a sliding rod 73, one end of the rotating shaft 71 is connected with the leveling instrument 6, the other end of the rotating shaft 71 is connected with the top end of the adjusting arm 72, the bottom end of the adjusting arm 72 is connected with the sliding rod 73, and the sliding rod 73 is used for being matched with the reference steel wire 11 to feed back signals to the leveling instrument 6. The electronic control system is further included, and the electronic control system adjusts the position of the sliding rod 73 by adjusting the rotation angle of the rotating shaft 71 and thus adjusting the position of the leveling instrument 6.

The novel ironing board comprises an ironing board body and is characterized by further comprising a pedal plate 4, wherein the pedal plate 4 is detachably arranged on the ironing board body 1, and the pedal plate 4 is connected with the ironing board body 1 through a sliding piece so that the pedal plate 4 can slide along the width direction of the ironing board body 1.

The working mode of the embodiment is as follows:

starting and primarily paving by using a traditional method, after the pavement paved by the paver reaches the design requirement and is stable, lifting the leveling arm to lift the oil cylinder, lifting the screed plate to suspend paving, and finding out that the leveling instrument is in a critical state, namely: when the upper indicator light and the lower indicator light are both off, the parallel distance between the sliding bar and the plane where the ironing board bottom plate is located is measured, and before measurement, the sliding bar and the plane where the ironing board bottom plate is located must be ensured to be parallel; the horizontal relative distance between the leveling instrument and the ironing plate is measured, and the two sets of data are recorded respectively for later use. After the data are obtained, when the pavement is paved again, the position of the leveling instrument at the critical point is found out through adjustment, and the parallel distance between the sliding bar and the plane where the ironing board bottom plate is located is divided laterally.

It should be understood that the above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention, and it will be obvious to those skilled in the art that other variations or modifications may be made on the basis of the above description, and all the embodiments of the present invention are not exhaustive, and all the obvious variations or modifications which are introduced in the technical scheme of the present invention are within the scope of the present invention.

Claims

1. The screed leveling assembly of the paver comprises leveling arms and a screed, wherein the rear ends of the two leveling arms are respectively and rigidly connected with the two sides of the screed, and the two ends of the leveling arms are respectively connected with fixed points arranged on a host through a leveling oil cylinder and a leveling arm lifting oil cylinder; the device also comprises a leveling instrument, wherein the leveling instrument is arranged on the leveling arm through a leveling instrument support, an adjusting support is further arranged on the leveling instrument, and the thickness signal is transmitted to the leveling instrument through the adjusting support; the leveling instrument is provided with a switch, an upper indicator light and a lower indicator light, and the upper indicator light and the lower indicator light are used for displaying the leveling state of the leveling instrument.

2. The screed leveling assembly of a paver of claim 1 wherein the adjustment bracket includes a rotation shaft, an adjustment arm and a slide bar, one end of the rotation shaft is connected with the leveling instrument and the other end is connected with the top end of the adjustment arm, the bottom end of the adjustment arm is connected with the slide bar, the slide bar is used for cooperating with a reference steel wire to give a feedback signal to the leveling instrument.

3. The screed leveling assembly of a paver of claim 2, further comprising an electronic control system that adjusts the position of the slide bar by adjusting the angle of rotation of the rotating shaft, thereby adjusting the position of the leveling instrument.

4. The screed leveling assembly of a paving machine as claimed in claim 1, further comprising a foot pedal removably mounted on the screed, the foot pedal being connected to the screed via a slider so that the foot pedal is slidable in a width direction of the screed.

5. The screed leveling assembly of a paving machine of claim 1, further comprising a sensor and a controller, the sensor for detecting a height of the leveling arm and sending a detection signal to the controller, the controller processing the detection signal and sending control signals to the leveling arm lift cylinder and the leveling cylinder.

6. The screed leveling assembly of a paving machine as claimed in any one of claims 1-5, wherein the leveling instrument is further provided with a precision knob.