Full-width telescopic ironing plate and paver

Abstract

The utility model relates to the technical field of paver screed plates, and particularly discloses a full-width telescopic screed plate and a paver, the full-width telescopic screed plate comprises a basic section screed plate, a left telescopic section screed plate is arranged on the left side of the basic section screed plate in a sliding manner, and a right telescopic section screed plate is arranged on the right side of the basic section screed plate in a sliding manner; two hydraulic oil cylinders are arranged on the basic section screed plate; a left baffle is fixedly arranged on the outer side surface of the left telescopic section screed plate; a right baffle is fixedly arranged on the outer side surface of the right telescopic section screed plate; a left telescopic guide plate is fixedly arranged at the front end of the left baffle; a right telescopic guide plate is fixedly arranged at the front end of the right baffle; material level control mechanisms are arranged on the left telescopic material guide plate and the right telescopic material guide plate; through the arrangement of the material level sensor, the material height can be monitored in time; the material level sensor is connected with the controller, the controller controls the lifting oil cylinder to drive the lifting plate to move, the material height is adjusted, labor amount is reduced, and construction efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of paver screeds, and specifically discloses a full-width telescopic screed and a paver. Background Art

[0002] The paver screed is a key working device of the paver, which plays a crucial role in the leveling and compaction of the paved road surface. During the operation of the paver, the screed is in a floating state and maintains a certain elevation angle with the ground. All kinds of forces on the screed (such as its own gravity, the buoyancy of the material, the traction force of the paver main machine and the resistance of the material) are in a balanced state, so that the height of the trailing edge of the screed remains unchanged, thus paving a flat surface layer.

[0003] Currently, common pavers in the process of road paving construction are restricted by various factors such as terrain conditions. When the width of the road paving changes, the operator needs to adjust the width of the paver screed in real time according to the paving width of the road, so as to ensure the paving quality. Generally, for the existing paver screeds, the operator needs to install or remove the screed extension sections at both ends of the paver screed to achieve the purpose of changing the width of the paver screed. This method increases costs such as labor and time, and reduces the paving construction efficiency.

[0004] During the forward movement of the paver during construction, the control of the material thickness cannot be adjusted in time and needs to be processed manually later, increasing the labor intensity; the screed will be subjected to the resistance exerted by the road surface and the material at the same time, resulting in a certain degree of deformation of the screed structural frame, especially in the working conditions of large-width and large-thickness construction and when the screed is fully extended. This deformation affects the construction quality on the one hand and the service life of the screed on the other hand. Summary of the Utility Model

[0005] Aiming at the above deficiencies of the prior art, the utility model provides a full-width telescopic screed and a paver to solve the problem that the control of the material thickness cannot be adjusted in time and needs to be processed manually later, increasing the labor intensity.

[0006] To achieve the above object, the technical solution of the utility model is as follows:

[0007] A full-width telescopic screed board, comprising a base-section screed board, with a left telescopic-section screed board slidably arranged on the left side of the base-section screed board, and a right telescopic-section screed board slidably arranged on the right side of the base-section screed board. There are two hydraulic cylinders arranged on the base-section screed board, and the two hydraulic cylinders are respectively connected to the left telescopic-section screed board and the right telescopic-section screed board. A left baffle is fixedly arranged on the outer side of the left telescopic-section screed board; a right baffle is fixedly arranged on the outer side of the right telescopic-section screed board; a left telescopic feeding plate is fixedly arranged at the front end of the left baffle; a right telescopic feeding plate is fixedly arranged at the front end of the right baffle; a material level control mechanism is arranged on both the left telescopic feeding plate and the right telescopic feeding plate; the material level control mechanism is used to control the height of the material; the material level control mechanism comprises a lifting oil cylinder fixedly arranged on the left telescopic feeding plate or the right telescopic feeding plate; the output end of the lifting oil cylinder is connected with a lifting plate; material level sensors are fixedly arranged on both side surfaces of the base-section screed board. Through the arrangement of the material level sensors, the height of the material can be monitored in a timely manner; the material level sensors are connected to a controller, and the controller controls the lifting oil cylinder to drive the lifting plate to act, so as to adjust the height of the material, reduce the labor intensity, and improve the construction efficiency.

[0008] Preferably, a tensioning mechanism is arranged between both the left baffle and the right baffle and both side surfaces of the main machine; one end of the tensioning mechanism is hinged to the side surface of the main machine, and the other end is hinged to the left baffle or the right baffle. Through the arrangement of the tensioning mechanism, real-time tensioning can be achieved, offsetting the resistance exerted on the full-width telescopic screed board by the road surface and the material, reducing the force-induced deformation, improving the construction quality of the paver, and ensuring the service life of the full-width telescopic screed board.

[0009] Preferably, the tensioning mechanism comprises a telescopic oil cylinder; the cylinder body of the telescopic oil cylinder is hinged to the side surface of the main machine, and a steel wire rope is hinged to the end of the piston rod; one end of the steel wire rope away from the telescopic oil cylinder is hinged to the left baffle or the right baffle.

[0010] Preferably, a first limit plate is arranged on the base-section screed board to cooperate with the left telescopic-section screed board; a second limit plate is arranged on the base-section screed board to cooperate with the right telescopic-section screed board; the hydraulic cylinder is a stroke limit hydraulic cylinder. The stroke can be accurately controlled by using the stroke limit hydraulic cylinder, avoiding collision and extrusion deformation of the full-width telescopic screed board caused by mechanical limit. At the same time, through the arrangement of the first limit plate and the second limit plate, further protection is added to avoid damage to the full-width telescopic screed board when the hydraulic cylinder fails, and the service life is increased.

[0011] Preferably, the right telescopic-section screed board is arranged at the rear side of the left telescopic-section screed board; when the left telescopic-section screed board and the right telescopic-section screed board retract, the left telescopic-section screed board and the right telescopic-section screed board are flush with both ends of the base-section screed board.

[0012] A paver, comprising the above-mentioned full-width telescopic screed board.

[0013] The beneficial effects of the present utility model are as follows:

[0014] Through the setting of the material level sensor, the height of the material can be monitored in a timely manner; the material level sensor is connected to the controller, and the controller controls the lifting oil cylinder to drive the lifting plate to act, adjust the height of the material, reduce the labor intensity, and improve the construction efficiency. Through the setting of the tensioning mechanism, real-time tensioning can be achieved, offsetting the resistance exerted by the road surface and the material on the full-width telescopic screed, reducing the stress deformation, improving the construction quality of the paver, and ensuring the service life of the full-width telescopic screed. The stroke can be accurately controlled by using the stroke limiting oil cylinder, avoiding the collision and extrusion deformation of the full-width telescopic screed caused by mechanical limiting. At the same time, through the setting of the first limiting plate and the second limiting plate, further protection is added to avoid the damage of the full-width telescopic screed when the hydraulic cylinder fails, and the service life is increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative efforts.

[0016] Figure 1 Structural schematic of the present invention Figure I ;

[0017] Figure 2 Structural schematic of the present invention Figure II ;

[0018] Figure 3 Structural schematic diagram of the extended state of the left telescopic screed and the right telescopic screed of the present invention;

[0019] Figure 4 Structural schematic diagram of the retracted state of the left telescopic screed and the right telescopic screed of the present invention;

[0020] Figure 5 Cross-sectional schematic diagram of the present invention at the material level control mechanism.

[0021] Description of the reference numerals:

[0022] 1 - Basic section screed, 2 - Left telescopic screed, 3 - Right telescopic screed, 4 - Left telescopic guiding plate, 5 - Right telescopic guiding plate, 6 - Left baffle, 7 - Right baffle, 8 - Tensioning mechanism, 9 - First limiting plate, 10 - Second limiting plate, 11 - Material level sensor, 12 - Lifting plate, 13 - Lifting oil cylinder;

[0023] 801 - Telescopic oil cylinder, 802 - Steel wire rope. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] To enable those skilled in the art to better understand the technical solutions in this utility model, the following will clearly and completely describe the technical solutions in the embodiments of this utility model in conjunction with the accompanying drawings in the embodiments of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, rather than all the embodiments. Based on the embodiments in this utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of this utility model.

[0025] As Figures 1-5 shown, a full-width telescopic screed board includes a basic-section screed board 1. A left telescopic-section screed board 2 is slidably arranged on the left side of the basic-section screed board 1, and a right telescopic-section screed board 3 is slidably arranged on the right side of the basic-section screed board 1. Two hydraulic cylinders are arranged on the basic-section screed board 1, and the hydraulic cylinders are respectively connected to the left telescopic-section screed board 2 and the right telescopic-section screed board 3. A first limiting plate 9 is arranged on the basic-section screed board 1 to cooperate with the left telescopic-section screed board 2; a second limiting plate 10 is arranged on the basic-section screed board 1 to cooperate with the right telescopic-section screed board 3; the hydraulic cylinders are stroke-limiting hydraulic cylinders. The right telescopic-section screed board 3 is arranged at the rear side of the left telescopic-section screed board 2; when the left telescopic-section screed board 2 and the right telescopic-section screed board 3 retract, the left telescopic-section screed board 2 and the right telescopic-section screed board 3 are flush with both ends of the basic-section screed board 1. It can accurately control the stroke by using the stroke-limiting hydraulic cylinders, avoid collisions and extrusion deformations of the full-width telescopic screed board caused by mechanical limiting. At the same time, through the settings of the first limiting plate 9 and the second limiting plate 10, further protection is added to avoid damage to the full-width telescopic screed board when the hydraulic cylinders fail, and the service life is increased.

[0026] In the above settings, a tensioning mechanism 8 is arranged between the left telescopic-section screed board 2 and the right telescopic-section screed board 3 and both side faces of the main machine. Through the setting of the tensioning mechanism 8, real-time tensioning can be achieved to offset the resistance exerted on the full-width telescopic screed board by the road surface and the materials, reduce the force-induced deformation, improve the construction quality of the paver, and ensure the service life of the full-width telescopic screed board. A left side baffle 6 is fixedly arranged on the outer side face of the left telescopic-section screed board 2; a right side baffle 7 is fixedly arranged on the outer side face of the right telescopic-section screed board 3; one end of the tensioning mechanism 8 is hinged to the side face of the main machine, and the other end is hinged to the left side baffle 6 or the right side baffle 7. The tensioning mechanism 8 includes a telescopic hydraulic cylinder 801; the cylinder body of the telescopic hydraulic cylinder 801 is hinged to the side face of the main machine, and a steel wire rope 802 is hinged to the end of the piston rod; the end of the steel wire rope 802 far from the telescopic hydraulic cylinder 801 is hinged to the left side baffle 6 or the right side baffle 7, completing the setting of the tensioning mechanism.

[0027] Among them, a left telescopic material guiding plate 4 is fixedly arranged at the front end of the left baffle 6; a right telescopic material guiding plate 5 is fixedly arranged at the front end of the right baffle 7; a material level control mechanism is arranged on both the left telescopic material guiding plate 4 and the right telescopic material guiding plate 5; the material level control mechanism is used to control the height of the material. The material level control mechanism includes a lifting oil cylinder 13 fixedly arranged on the left telescopic material guiding plate 4 or the right telescopic material guiding plate 5; a lifting plate 12 is connected to the output end of the lifting oil cylinder 13; material level sensors 11 are fixedly arranged on both side surfaces of the basic section screed 1. Through the arrangement of the material level sensors 11, the height of the material can be monitored in a timely manner; the material level sensors 11 are connected to a controller, and the controller controls the lifting oil cylinder 13 to drive the lifting plate 12 to act, adjust the height of the material, reduce the labor intensity and improve the construction efficiency.

[0028] This embodiment also discloses a paver, including the above full-width telescopic screed.

[0029] Although the present invention has been described in detail by referring to the accompanying drawings and in combination with the preferred embodiments, the present invention is not limited thereto. Without departing from the spirit and essence of the present invention, those of ordinary skill in the art can make various equivalent modifications or substitutions to the embodiments of the present invention, and these modifications or substitutions should all be within the scope of the present invention. / Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A full-width telescopic screed board, comprising a base-section screed board (1), a left telescopic-section screed board (2) is slidably arranged on the left side of the base-section screed board (1), a right telescopic-section screed board (3) is slidably arranged on the right side of the base-section screed board (1), two hydraulic cylinders are arranged on the base-section screed board (1), and the two hydraulic cylinders are respectively connected to the left telescopic-section screed board (2) and the right telescopic-section screed board (3), characterized in that, On the outer side of the left telescopic screed (2), a left side baffle (6) is fixedly arranged; on the outer side of the right telescopic screed (3), a right side baffle (7) is fixedly arranged; at the front end of the left side baffle (6), a left telescopic feeding plate (4) is fixedly arranged; at the front end of the right side baffle (7), a right telescopic feeding plate (5) is fixedly arranged; a material level control mechanism is arranged on both the left telescopic feeding plate (4) and the right telescopic feeding plate (5); the material level control mechanism includes a lifting oil cylinder (13) fixedly arranged on the left telescopic feeding plate (4) or the right telescopic feeding plate (5); the output end of the lifting oil cylinder (13) is connected with a lifting plate (12); material level sensors (11) are fixedly arranged on both side surfaces of the basic section screed (1).

2. The full-width telescopic screed according to claim 1, wherein, Tensioning mechanisms (8) are arranged between the left side baffle (6) and the right side baffle (7) and both side surfaces of the main machine; one end of the tensioning mechanism (8) is hinged to the side surface of the main machine, and the other end is hinged to the left side baffle (6) or the right side baffle (7).

3. The full-width telescopic screed according to claim 2, characterized in that, The tensioning mechanism (8) includes a telescopic oil cylinder (801); the cylinder body of the telescopic oil cylinder (801) is hinged to the side surface of the main machine, and a steel wire rope (802) is hinged to the end of the piston rod; the end of the steel wire rope (802) far from the telescopic oil cylinder (801) is hinged to the left side baffle (6) or the right side baffle (7).

4. The full-width telescopic screed according to claim 3, wherein, A first limiting plate (9) is arranged on the basic section screed (1) in cooperation with the left telescopic screed (2); a second limiting plate (10) is arranged on the basic section screed (1) in cooperation with the right telescopic screed (3); the hydraulic cylinder is a stroke limiting oil cylinder.

5. The full-width telescopic screed according to claim 4, characterized in that, The right telescopic screed (3) is arranged at the rear side of the left telescopic screed (2); when the left telescopic screed (2) and the right telescopic screed (3) retract, the left telescopic screed (2) and the right telescopic screed (3) are flush with both ends of the basic section screed (1).

6. A paver, characterized in that, Comprising the full-width telescopic screed according to any one of claims 1-5.

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