An automatic adjustment device for the angle of end mold of a sliding type cement concrete paver

Abstract

The present invention discloses an automatic adjustment device for the angle of the end mold of a sliding type cement concrete paver, comprising two symmetrically arranged frames, the two frames being connected by a plurality of connecting plates, a liftable side plate assembly being arranged below the frames, the side plate assembly comprising a fixed plate and a side bonding plate, the fixed plate and the side bonding plate being connected by a screw rod. The automatic adjustment device for the angle of the end mold of the sliding type cement concrete paver is provided with a non-contact detector, the detection head of the non-contact detector is used to detect the change in the shape of the road end after the concrete is ejected from the mold due to the change in the slump of the concrete, and then the detected signal is fed back to the controller in the second hydraulic oil cylinder to control the extension and contraction of the second piston rod thereof, so as to adjust the height and the lateral inclination angle of the bottom plate in real time according to the shape of the road end, compensate for the error caused by the change in the shape of the road end after the concrete is ejected from the mold due to the change in the slump of the concrete, and improve the quality of the road end molding.

Description

Technical Field

[0001] The invention relates to an automatic adjustment device for the angle of an end mold of a sliding-type cement concrete spreading machine. Background Art

[0002] The paver is an important road construction machinery, widely used in the construction and maintenance of various roads. A cement concrete pavement paver refers to a self-propelled unit used for the construction of cement concrete pavements or airport cement concrete pavements, which has the functions of paving, compacting, and leveling concrete mixtures. Cement concrete pavement pavers are divided into two categories: track-type and sliding-type. The sliding-type paver has its own functions of paving, compacting, and leveling, and can continuously lay concrete without setting up a formwork. It was developed after the track-type paver and can lay curbstones at the same time, but the requirements for the supply of raw materials, their mix ratio, and mixing are very strict. At present, the end mold device of the sliding-type cement concrete paver is composed of a bottom plate and a side plate, and the shape of the end of the pavement is extruded by the joint action of the bottom plate and the side plate.

[0003] Traditional pavers are rarely able to monitor in real time the errors caused by changes in the shape of the road end after the concrete is demolded due to changes in the slump of concrete, nor can they adjust the lateral inclination angle of the base plate in real time to compensate for the errors. The extruded road end is prone to collapse, which requires a lot of manpower and material resources to repair, and the molding quality is low. Summary of the invention

[0004] The purpose of the present invention is to provide an automatic adjustment device for the end mold angle of a sliding-type cement concrete paver, so as to solve the problem proposed in the above-mentioned background technology that the paver is rarely able to monitor in real time the error caused by the change in the shape of the road end after the concrete is demolded due to the change in the slump of the concrete during operation, and is unable to adjust the lateral inclination angle of the base plate in real time to compensate for the error. The end of the extruded road is prone to collapse, which requires a lot of manpower and material resources to repair, and the molding quality is low.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an automatic adjustment device for the angle of the end mold of a sliding mode cement concrete paver, comprising two symmetrically arranged frames, the two frames are connected by a plurality of connecting plates, a liftable side plate assembly is arranged below the frames, the side plate assembly comprises a fixed plate and a side bonding plate, the fixed plate and the side bonding plate are connected by a screw rod, a plurality of second hydraulic cylinders are arranged on the connecting plate at equal intervals along the center line of the long side thereof, and the output end of the second hydraulic cylinder is connected to a second piston rod through a coupling, the bottom end of the second piston rod is connected to a bottom plate, and each of the second hydraulic cylinders is provided with a non-contact detector, the detection head of each of the non-contact detectors is used to detect the change in the shape of the road end after the concrete is demolded due to the change in the slump of the concrete, and then the detected signal is fed back to the controller in each of the second hydraulic cylinders to control the extension and retraction of the second piston rod, thereby adjusting the height and lateral inclination angle of the bottom plate in real time according to the shape of the road end.

[0006] Preferably, both ends of the base plate are provided with auxiliary support mechanisms for cooperating with the base plate to adjust the angle and height.

[0007] Preferably, the auxiliary support mechanism includes an auxiliary block and a first telescopic rod, a second telescopic rod and an oblique rod fixed thereon, the auxiliary block is connected to the base plate, the first telescopic rod is fixed on the frame, the second telescopic rod is fixed to the first telescopic rod, and the top of the oblique rod is fixed on the connecting plate.

[0008] Preferably, the first telescopic rod and the second telescopic rod are both arranged perpendicular to the horizontal plane, and the angle between the oblique rod and the connecting plate is adjustable, and the angle adjustment range is 0-90°.

[0009] Preferably, the diagonal rod is a telescopic rod with adjustable length.

[0010] Preferably, the lengths of the fixing plate and the side bonding plate in the side plate assembly are both greater than the length of the frame, and both ends of the fixing plate and the side bonding plate extend out of the connecting plates at both ends of the frame.

[0011] Preferably, the fixing plate and the side laminating plate are of the same shape, size and structure, and the fixing plate is located on the outside of the frame while the side laminating plate is located on the inside of the frame.

[0012] Preferably, a plurality of the screw rods are evenly spaced and distributed along the center line of the long side of the fixing plate.

[0013] Preferably, first piston rods are provided at both ends of the side plate assembly, and the side plate assembly is connected to the frame via the first piston rod, and a first hydraulic cylinder for controlling the extension and retraction of the first piston rod is provided on the frame.

[0014] Compared with the prior art, the present invention is provided with a side plate assembly, and the specific position of the side bonding plate can be adjusted according to the width of the road surface. The side bonding plate cooperates with the bottom plate to extrude each other to form the shape of the road end; in the process of extrusion molding of the road end shape, the detection head of the non-contact detector is used to detect the change in the shape of the road end after the concrete is demolded due to the change in the slump of concrete, and then the detected signal is fed back to the controller in the second hydraulic cylinder to control the extension and retraction of its second piston rod, so as to adjust the height and lateral inclination angle of the bottom plate in real time according to the shape of the road end, compensate for the error caused by the change in the shape of the road end after the concrete is demolded due to the change in the slump of concrete, and improve the quality of road end molding. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0016] Figure 2 For the present invention Figure 1 The enlarged structural diagram at A in the middle;

[0017] Figure 3 For the present invention Figure 1 Enlarged structural diagram at B in the middle.

[0018] In the figure: 1. frame; 2. connecting plate; 3. first hydraulic cylinder; 31. first piston rod; 4. side plate assembly; 41. fixing plate; 42. side laminating plate; 43. screw rod; 5. second hydraulic cylinder; 51. second piston rod; 6. bottom plate; 7. auxiliary support mechanism; 71. auxiliary block; 72. first telescopic rod; 73. second telescopic rod; 74. oblique rod; 8. non-contact detector. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] See also Figure 1-3The present invention provides a technical solution: an automatic adjustment device for the angle of the end mold of a sliding mode cement concrete paver, comprising two symmetrically arranged frames 1, the two frames 1 are connected by a plurality of connecting plates 2, a liftable side plate assembly 4 is arranged below the frames 1, the side plate assembly 4 comprises a fixed plate 41 and a side laminating plate 42, the fixed plate 41 and the side laminating plate 42 are connected by a screw rod 43, a plurality of second hydraulic cylinders 5 are arranged at equal intervals on the connecting plate 2 along the center line of the long side thereof, and the output end of the second hydraulic cylinder 5 is connected to a second piston rod 51 through a coupling, the bottom end of the second piston rod 51 is connected to a bottom plate 6, each second hydraulic cylinder 5 is provided with a non-contact detector 8, and the detector of each non-contact detector 8 The probe is used to detect the change in the shape of the road end after the concrete is demolded due to the change in the slump of concrete, and then feed back the signal to the controller in each second hydraulic cylinder 5 to control the extension and retraction of its second piston rod 51, so as to adjust the height and lateral inclination angle of the base plate 6 in real time according to the shape of the road end; in the process of extrusion molding of the road end shape, the detection head of the non-contact detector 8 is used to detect the change in the shape of the road end after the concrete is demolded due to the change in the slump of concrete, and then feed back the detected signal to the controller in the second hydraulic cylinder 5 to control the extension and retraction of its second piston rod 51, so as to adjust the height and lateral inclination angle of the base plate 6 in real time according to the shape of the road end, compensate for the error caused by the slump change, and improve the quality of road end molding.

[0021] Specifically, both ends of the base plate 6 are provided with auxiliary support mechanisms 7 for cooperating with the base plate 6 for angle and height adjustment. When the base plate 6 is adjusted, the auxiliary support mechanisms 7 play a certain auxiliary supporting role, which facilitates the adjustment of the base plate 6 and relatively improves the stability of the device.

[0022] Specifically, the auxiliary support mechanism 7 includes an auxiliary block 71 and a first telescopic rod 72, a second telescopic rod 73 and an oblique rod 74 fixed thereon, the auxiliary block 71 is connected to the base plate 6, the first telescopic rod 72 is fixed on the frame 1, the second telescopic rod 73 is fixed to the first telescopic rod 72, and the top of the oblique rod 74 is fixed on the connecting plate 2.

[0023] Specifically, the first telescopic rod 72 and the second telescopic rod 73 are both arranged perpendicular to the horizontal plane, the angle between the inclined rod 74 and the connecting plate 2 is adjustable, and the angle adjustment range is 0-90°, which further improves the stability of the installation of the auxiliary support mechanism 7.

[0024] Specifically, the inclined rod 74 is a telescopic rod with adjustable length. The inclined rod 74 is telescopic to facilitate the adjustment of the height of the bottom plate 6 by the second hydraulic cylinder 5 .

[0025] Specifically, the lengths of the fixing plate 41 and the side bonding plate 42 in the side plate assembly 4 are both greater than the length of the frame 1 , and both ends of the fixing plate 41 and the side bonding plate 42 extend out of the connecting plates 2 at both ends of the frame 1 .

[0026] Specifically, the fixing plate 41 and the side laminating plate 42 have the same shape, size and structure, and the fixing plate 41 is located on the outside of the frame 1 while the side laminating plate 42 is located on the inside of the frame 1 . The fixing plate 41 is used to position and fix the side laminating plate 42 .

[0027] Specifically, a plurality of screw rods 43 are evenly spaced along the center line of the long side of the fixing plate 41 , and the screw rods 43 are used to adjust the position of the side laminating plate 42 so that the side laminating plate 42 can better cooperate with the bottom plate 6 to extrude the road end faces into each other.

[0028] Specifically, both ends of the side panel assembly 4 are provided with a first piston rod 31, and the side panel assembly 4 is connected to the frame 1 through the first piston rod 31. The frame 1 is provided with a first hydraulic cylinder 3 for controlling the extension and retraction of the first piston rod 31. The side panel assembly 4 is provided, and the specific position of the side bonding plate 42 can be adjusted according to the width of the road surface. The side bonding plate 42 cooperates with the bottom plate 6 to extrude each other to form the shape of the road end.

[0029] A method for using an automatic adjustment device for the angle of an end mold of a sliding-type cement concrete paver comprises the following steps:

[0030] (A) First, the first hydraulic cylinder 3 is opened to drive the first piston rod 31 to extend or shorten to adjust the position of the side plate assembly 4. After the adjustment, the first hydraulic cylinder 3 is closed, and the position of the fixed plate 41 is fixed;

[0031] (B) Tighten the nut on the screw rod 43 to make the screw rod 43 extend or shorten while moving linearly, so as to adjust the specific position of the side bonding plate 42 according to the actual width of the concrete pavement, so that the side bonding plate 42 and the side of the concrete pavement are bonded to each other, and tighten the nut to fix the length of the screw rod 43;

[0032] (C) During the movement of the paver, the non-contact detector 8 is turned on. The detection head of the non-contact detector 8 is used to detect the change in the shape of the road end after the concrete is ejected from the mold due to the change in the slump of the concrete, and then the detected signal is fed back to the controller in the second hydraulic cylinder 5 to control the extension and contraction of the second piston rod 51, so as to adjust the height and lateral inclination angle of the bottom plate 6 in real time according to the shape of the road end, so as to compensate for the error caused by the change in the shape of the road end after the concrete is ejected from the mold due to the change in the slump of the concrete.

[0033] (D) When the bottom plate 6 adjusts its height and lateral tilt angle in real time, the auxiliary support mechanism 7 assists in adjusting it. During the adjustment process, the first telescopic rod 72 and the second telescopic rod 73 will follow the extension and retraction of the second piston rod 51 and the diagonal rod 74 will also extend and retract. On the one hand, it is convenient to cooperate with the adjustment operation of the bottom plate 6, and on the other hand, it plays a supporting role to improve the stability of the bottom plate 6, so that the side bonding plate 42 cooperates with the bottom plate 6 to squeeze each other to make the road end shape forming quality better;

[0034] (E) Finally, the paver finishes its work and can turn off the non-contact detector 8 to stop monitoring the road end.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic adjustment device for the angle of the end mold of a sliding type cement concrete paver, characterized in that: The invention comprises two symmetrically arranged frames (1), the two frames (1) being connected via a plurality of connecting plates (2), a liftable side plate assembly (4) being arranged below the frames (1), the side plate assembly (4) comprising a fixed plate (41) and a side bonding plate (42), the fixed plate (41) and the side bonding plate (42) being connected via a screw rod (43), a plurality of second hydraulic cylinders (5) being arranged at equal intervals along the center line of the long side of the connecting plate (2), the output end of the second hydraulic cylinder (5) being connected to a second piston rod (51) via a coupling, the bottom end of the second piston rod (51) being connected to a bottom plate (6), each of the second hydraulic cylinders (5) being provided with a non-contact detector (8), the detector of each of the non-contact detectors (8) The probe is used to detect the change in the shape of the road end after the concrete is ejected from the mold due to the change in the slump of the concrete, and then feeds back the detected signal to the controller in each second hydraulic cylinder (5) to control the extension and retraction of its second piston rod (51), thereby adjusting the height and lateral inclination angle of the bottom plate (6) in real time according to the shape of the road end; the lengths of the fixed plate (41) and the side bonding plate (42) in the side plate assembly (4) are both greater than the length of the frame (1), and the ends of the fixed plate (41) and the side bonding plate (42) extend out of the connecting plate (2) at both ends of the frame (1); the fixed plate (41) and the side bonding plate (42) are of the same shape, size and structure, and the fixed plate (41) is located on the outside of the frame (1) and the side bonding plate (42) is located on the inside of the frame (1).

2. According to claim 1, the automatic adjustment device for the end mold angle of a sliding type cement concrete paver is characterized in that: Both ends of the bottom plate (6) are provided with auxiliary support mechanisms (7) for cooperating with the bottom plate (6) to adjust the angle and height.

3. The automatic adjustment device for the end mold angle of a sliding type cement concrete paver according to claim 2 is characterized in that: The auxiliary support mechanism (7) comprises an auxiliary block (71) and a first telescopic rod (72), a second telescopic rod (73) and an oblique rod (74) fixed thereon; the auxiliary block (71) is connected to the bottom plate (6); the first telescopic rod (72) is fixed to the frame (1); the second telescopic rod (73) is fixed to the first telescopic rod (72); and the top of the oblique rod (74) is fixed to the connecting plate (2).

4. The automatic adjustment device for the end mold angle of a sliding type cement concrete paver according to claim 3 is characterized in that: The first telescopic rod (72) and the second telescopic rod (73) are both arranged perpendicular to a horizontal plane, and the angle between the oblique rod (74) and the connecting plate (2) is adjustable, and the angle adjustment range is 0-90°.

5. The automatic adjustment device for the angle of the end mold of a sliding type cement concrete paver according to claim 4 is characterized in that: The oblique rod (74) is a telescopic rod with adjustable length.

6. The automatic adjustment device for the end mold angle of a sliding type cement concrete paver according to claim 1 is characterized in that: A plurality of screw rods (43) are distributed at equal intervals along the center line of the long side of the fixing plate (41).

7. The automatic adjustment device for the end mold angle of a sliding type cement concrete paver according to claim 1 is characterized in that: Both ends of the side plate assembly (4) are provided with a first piston rod (31), and the side plate assembly (4) is connected to the frame (1) via the first piston rod (31). The frame (1) is provided with a first hydraulic cylinder (3) for controlling the extension and retraction of the first piston rod (31).

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