Adjustable concrete leveling machine

Abstract

An adjustable concrete leveling machine comprises a walking beam and a main body frame, and a leveling system capable of leveling concrete is arranged at the bottom of the main body frame. The main body frame is arranged on the walking beam in a liftable mode, the driving mechanism is specially used for driving the main body frame to ascend and descend vertically, and the leveling system responsible for leveling concrete is arranged at the bottom of the main body frame, so that the leveling system can ascend and descend to the set position along with the main body frame according to the actual situation of a leveling site; therefore, the leveling machine can adapt to leveling thicknesses under different conditions, so that the leveling machine can meet the requirements of more types of leveling thicknesses. In addition, an ironing plate of the leveling system is arranged to be adjustable in the elevation angle direction to control the compaction force of the whole machine on the concrete, a front baffle capable of adjusting the ground clearance is arranged to control the feeding amount, and a vibrator capable of adjusting the vibration frequency is arranged to meet the difference of the concrete caused by inconsistent surface layer thickness or proportion. And finally, the leveling machine can meet more diversified engineering requirements.

Description

Technical Field

[0001] The utility model relates to the field of construction machinery, in particular to an adjustable concrete leveling machine. Background Art

[0002] Polyurethane concrete is a kind of polymer paving material, which is suitable for pavement projects such as steel bridge deck paving, concrete pavement paving and civil aviation airport runway paving, etc. It has the advantages of high strength, good adhesion, excellent waterproof performance, high temperature resistance, wear resistance, etc.

[0003] Among them, due to the special nature of its materials, polyurethane concrete needs to complete the leveling operation quickly, which puts forward higher requirements for the leveling machine. The height of the bottom of the existing leveling machine from the ground is usually fixed, while the paving thickness of the polyurethane concrete surface layer on different roads is inconsistent. Therefore, the leveling thickness of the existing leveling machine cannot meet the diverse engineering requirements.

[0004] In addition, the elevation angle of the screed board of the existing leveling machine is also fixed. When too much material to be leveled enters, the whole machine will be lifted, resulting in too high a leveling thickness. When too little material enters, the overall density of the paved road surface will be insufficient, resulting in an uneven road surface. At this time, only manual leveling can be carried out, but the manual speed is slow and segregation is likely to occur, the operation quality is low and the labor consumption is large.

[0005] Moreover, due to the inconsistency of the surface layer thickness or the difference in the ratio of polyurethane concrete, the required vibration frequency of the leveling machine is also different, while most of the existing leveling machines have a fixed vibration frequency, which is also difficult to meet the actual engineering requirements.

[0006] Therefore, how to provide a leveling machine whose leveling height, elevation angle of the screed board, feeding amount and vibration frequency can all be adjusted to meet the diverse engineering requirements is an urgent problem to be solved by those skilled in the art. Summary of the Utility Model

[0007] The first technical problem to be solved by the utility model is to provide an adjustable concrete leveling machine that can adapt to various paving thicknesses by adjusting the height of the leveling system from the ground, so as to meet the diverse engineering requirements in view of the above technical status.

[0008] The second technical problem to be solved by the utility model is to provide an adjustable concrete leveling machine that can control the compaction force of the whole machine on the concrete by adjusting the elevation angle between the screed board and the running direction of the leveling machine, so as to meet the diverse engineering requirements in view of the above technical status.

[0009] The third technical problem to be solved by the present utility model is to provide an adjustable concrete leveling machine that can control the feeding amount by setting a front baffle capable of adjusting the height from the ground, so as to meet diverse engineering requirements in view of the above technical status quo.

[0010] The fourth technical problem to be solved by the present utility model is to provide an adjustable concrete leveling machine that can meet the differences brought by inconsistent surface layer thickness or mix ratio of concrete by setting a vibrator capable of adjusting the vibration frequency, so as to meet diverse engineering requirements in view of the above technical status quo.

[0011] The technical solution adopted by the present utility model to solve the first technical problem is as follows: An adjustable concrete leveling machine includes a pair of walking beams arranged oppositely left and right and a main frame connected between the pair of walking beams. A leveling system capable of leveling concrete is provided at the bottom of the main frame. The main frame is arranged on the walking beams in a liftable manner. The leveling system can follow the main frame to lift up and down to adapt to different leveling thicknesses. A driving mechanism capable of driving the main frame to lift is further provided between the main frame and the walking beams.

[0012] In order to optimize the overall structure of the driving mechanism and enable it to better drive the main frame to lift, preferably, the driving mechanism includes a lead screw, a lifting motor and a worm and worm gear device. The lead screw is arranged vertically on the walking beams. The lifting motor and the worm and worm gear device are both arranged on the main frame. The lifting motor drives the worm and worm gear device to slide up and down along the lead screw to realize the up and down lifting of the main frame.

[0013] In order to enable the lead screw to be better installed on the walking beams, preferably, a flange is further provided at the top of the walking beams. The bottom of the lead screw is fixed on the walking beams by connecting the flange.

[0014] In order to enable the lifting motor and the worm and worm gear device to be better installed on the main frame and also play an up and down guiding role during the lifting process of the main frame, preferably, a support frame is provided at each of the left and right ends of the main frame. The lifting motor and the worm and worm gear device are both arranged on the corresponding support frame. A guide sleeve is provided on each support frame. A guide post capable of guiding and cooperating with the guide sleeve is provided on the walking beams.

[0015] In order to enable the up and down lifting of the main frame to be more stable, preferably, there are two guide posts arranged on each walking beam and spaced apart. The two guide posts are respectively located on the opposite sides of the lead screw. Correspondingly, two guide sleeves are provided on the support frames.

[0016] To ensure that the leveling machine can move forward smoothly along the leveling area, preferably, walking wheels are provided at the bottom of each walking beam, and a walking motor is provided on each walking beam. Each walking motor drives the walking wheel to rotate through a connecting drive chain.

[0017] To assist the leveling machine in performing better leveling work, preferably, an auxiliary platform for assisting leveling is further provided at the rear side of the main frame.

[0018] The technical solution adopted by the present utility model to solve the second technical problem is as follows: The leveling system includes a screed board. The front end of the screed board is connected to the bottom of the main frame by setting a front connecting device, and the rear end of the screed board is connected to the bottom of the main frame by setting a rear connecting device. Both the front connecting device and the rear connecting device can be adjusted in height, and the elevation angle between the screed board and the running direction of the leveling machine is changed by changing the relative height between the front connecting device and the rear connecting device.

[0019] The technical solution adopted by the present utility model to solve the third technical problem is as follows: It further includes a front baffle provided at the front side of the main frame. The front baffle is connected to the main frame in a liftable manner by connecting a lifting screw rod capable of adjusting the height.

[0020] The technical solution adopted by the present utility model to solve the fourth technical problem is as follows: A vibrator capable of adjusting the vibration frequency is further provided on the screed board, and by changing the vibration frequency of the vibrator, the leveling machine can be adapted to different leveling sites.

[0021] Compared with the prior art, the advantages of the present utility model are as follows: By arranging the main frame between a pair of left and right relatively distributed walking beams, and enabling the main frame to be arranged on the walking beams in a liftable manner, and setting a driving mechanism specifically for driving the main frame to move up and down. Since the leveling system responsible for leveling the concrete is arranged at the bottom of the main frame, the leveling system can be lifted to a set position following the main frame according to the actual situation at the leveling site to adapt to leveling thicknesses in different situations, so that the leveling machine can meet more types of spreading thicknesses. In addition, by setting the screed board of the leveling system in a manner that the elevation angle can be adjusted to control the compaction force of the whole machine on the concrete, by setting a front baffle capable of adjusting the height from the ground to control the feeding amount, and by setting a vibrator capable of adjusting the vibration frequency to meet the differences brought about by inconsistent surface layer thickness or mixture ratio of the concrete, ultimately enabling the leveling machine to meet more diverse engineering requirements. Description of the Drawings

[0022] Figure 1 It is a schematic diagram of the overall structure of the paver in this embodiment;

[0023] Figure 2It is a schematic diagram of the overall structure of the paver from the bottom perspective in this embodiment;

[0024] Figure 3 It is a schematic diagram of the orthographic projection structure of the paver from the side perspective in this embodiment. Detailed implementation manners

[0025] The following further describes the present utility model in detail in conjunction with the embodiments with the attached drawings.

[0026] Figures 1 to 3 The shown is the schematic diagram of this embodiment. The adjustable concrete leveling machine of this embodiment mainly includes a walking beam 1, a main body frame 2, a leveling system 3, a driving mechanism 4, etc.

[0027] Refer to Figures 1 through 3 As shown, a pair of walking beams 1 are provided and arranged oppositely left and right. The main body frame 2 is connected between the pair of walking beams 1. The leveling system 3 is arranged at the bottom of the main body frame 2 for leveling the concrete. The main body frame 2 is arranged on the walking beam 1 in a liftable manner. The leveling system 3 can follow the main body frame 2 to lift up and down to adapt to different leveling thicknesses. A driving mechanism 4 capable of driving the main body frame 2 to achieve lifting is also provided between the main body frame 2 and the walking beam 1.

[0028] Among them, in order to optimize the overall structure of the driving mechanism 4 so that it can better drive the main body frame 2 to lift up and down, refer to Figure 1 As shown, in this embodiment, the driving mechanism 4 includes a lead screw 4a, a lifting motor 4b and a worm and worm gear device 4c. The lead screw 4a is arranged vertically on the walking beam 1. Both the lifting motor 4b and the worm and worm gear device 4c are arranged on the main body frame 2. The lifting motor 4b drives the worm and worm gear device 4c to slide up and down along the lead screw 4a, so as to smoothly achieve the lifting up and down of the main body frame 2.

[0029] Secondly, in order to enable the lead screw 4a to be better installed on the walking beam, refer to Figure 1 As shown, in this embodiment, a flange 1a is further provided on the top of the walking beam 1. The bottom of the lead screw 4a is fixed on the walking beam 1 through the connecting flange 1a.

[0030] In addition, in order to enable both the lifting motor 4b and the worm and worm gear device 4c to be better installed on the main body frame 2 and also play an up and down guiding role during the lifting process of the main body frame 2, refer to Figure 1 and Figure 3 As shown, in this embodiment, a support frame 2a is provided at each of the left and right ends of the main body frame 2. Both the lifting motor 4b and the worm and worm gear device 4c are arranged on the corresponding support frame 2a. A guide sleeve 2b is provided on each support frame 2a. A guide post 1b capable of guiding and cooperating with the guide sleeve 2b is provided on the walking beam 1 to maintain the stability of the overall lifting and ensure the paving thickness.

[0031] Meanwhile, in order to make the up-and-down movement of the main frame 2 smoother, refer to Figure 1 As shown, in this embodiment, two guide columns 1b are provided on each walking beam 1, and the two guide columns 1b are spaced apart on opposite sides of the lead screw 4a. Correspondingly, two guide sleeves 2b are provided on the support frame 2a.

[0032] In addition, in this embodiment, to ensure that the leveling machine can move forward smoothly along the leveling area, refer to Figure 1 As shown, two traveling wheels 1c are provided at the bottom of each walking beam 1 here, and one traveling motor 1d is provided on each walking beam 1. Each traveling motor 1d drives the rotation of the traveling wheel 1c through a connecting drive chain 1e.

[0033] Refer to Figure 1 and Figure 2 As shown, in order to assist the leveling machine to perform better leveling work, an auxiliary platform 6 for assisting leveling is specially provided at the rear side of the main frame 2.

[0034] In this embodiment, refer to Figure 3 As shown, in order to effectively control the compaction force of the leveling machine on the concrete, the leveling system 3 here includes a screed 3a. The front end of the screed 3a is connected to the bottom of the main frame 2 by setting a front connecting device 3b, and the rear end of the screed 3a is connected to the bottom of the main frame 2 by setting a rear connecting device 3c. Both the front connecting device 3b and the rear connecting device 3c can be adjusted in height. By changing the relative height between the front connecting device 3b and the rear connecting device 3c, the elevation angle between the screed 3a and the running direction is changed, so as to achieve the purpose of controlling the compaction force of the whole machine on the concrete, and then meet diverse engineering requirements. The elevation angle here is the prerequisite for the screed 3a to be able to compact the polyurethane concrete and work properly. By changing the elevation angle, the compaction force of the leveling machine on the polyurethane concrete in the vertical direction and the pushing force in the horizontal direction can be changed.

[0035] In this embodiment, refer to Figure 2 As shown, in order to effectively control the feeding amount of the leveling machine, the leveling machine here also includes a front baffle 5 provided on the front side of the main frame 2. The front baffle 5 is connected to the main frame 2 in a liftable manner by connecting a lifting screw 5a that can adjust the height. The feeding amount of the leveling machine is controlled by adjusting the ground clearance height of the front baffle 5, so as to avoid the leveling machine being lifted when too much material enters, resulting in too high a leveling thickness; when too little material enters, the overall density is insufficient.

[0036] In this embodiment, refer to Figure 3As shown in the figure, in order to enable the vibrating frequency adjustment of the leveling machine to meet different concrete surface layer thicknesses and ratios, a vibrator 3d for adjusting the vibrating frequency is also provided on the screed 3a here. By changing the vibrating frequency of the vibrator 3d, the leveling machine can be adapted to different leveling sites, so as to meet the differences caused by inconsistent surface layer thickness or ratio of the concrete. When the paving layer is thicker and the concrete is coarser, a higher frequency is selected; when the paving layer is thinner and the concrete is finer, a lower frequency is selected. For different paving conditions, different vibration frequencies are selected, which can produce better compaction effects and avoid concrete segregation.

[0037] It should be additionally explained here that in this embodiment, the main frame 2 is arranged between a pair of left and right relatively distributed traveling beams 1, and the main frame 2 is arranged on the traveling beam 1 in a liftable manner, and a driving mechanism 4 is provided specifically for driving the main frame 2 to lift up and down. Since the leveling system 3 responsible for leveling the concrete is arranged at the bottom of the main frame 1, the leveling system 3 can follow the main frame 2 and lift to the set position according to the actual situation at the leveling site, so as to adapt to different leveling thicknesses, thereby enabling the leveling machine to meet more types of leveling thicknesses. In addition, the screed 3a of the leveling system 3 is set in a manner that the elevation angle can be adjusted to control the compaction force of the whole machine on the concrete. The feeding amount is controlled by setting a front baffle 5 that can adjust the height from the ground, and the vibrator 3d that can adjust the vibrating frequency is set to meet the differences caused by inconsistent surface layer thickness or ratio of the concrete. Finally, the leveling machine can meet more diverse engineering requirements.

[0038] It should be noted that in the description of this embodiment, the orientation or positional relationship indicated by terms such as "front, rear", "left, right", "up, down", etc. are all based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation to the present invention. The terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

Claims

1. An adjustable concrete leveling machine, comprising a pair of walking beams (1) arranged oppositely left and right and a main body frame (2) connected between the pair of walking beams (1). A leveling system (3) capable of leveling concrete is provided at the bottom of the main body frame (2), and it is characterized in that: The main body frame (2) is vertically movably arranged on the walking beam (1). The leveling system (3) can move up and down following the main body frame (2) to adapt to different leveling thicknesses. A driving mechanism (4) capable of driving the main body frame (2) to move up and down is further arranged between the main body frame (2) and the walking beam (1).

2. The adjustable concrete leveling machine according to claim 1, wherein: The driving mechanism (4) includes a lead screw (4a), a lifting motor (4b) and a worm and worm gear device (4c). The lead screw (4a) is vertically arranged on the walking beam (1). Both the lifting motor (4b) and the worm and worm gear device (4c) are arranged on the main body frame (2). The lifting motor (4b) drives the worm and worm gear device (4c) to slide up and down along the lead screw (4a) to realize the up and down movement of the main body frame (2).

3. The adjustable concrete leveling machine according to claim 2, characterized in that: A flange (1a) is further arranged on the top of the walking beam (1). The bottom of the lead screw (4a) is fixed on the walking beam (1) by connecting the flange (1a).

4. The adjustable concrete leveling machine according to claim 2, wherein: A support frame (2a) is arranged at each of the left and right ends of the main body frame (2). The lifting motor (4b) and the worm and worm gear device (4c) are respectively arranged on the corresponding support frame (2a). A guide sleeve (2b) is arranged on each support frame (2a). A guide post (1b) capable of guiding and cooperating with the guide sleeve (2b) is arranged on the walking beam (1).

5. The adjustable concrete leveling machine according to claim 4, characterized in that: There are two guide posts (1b) arranged on each walking beam (1) and they are spaced apart. The two guide posts (1b) are respectively located on the opposite sides of the lead screw (4a). Correspondingly, two guide sleeves (2b) are arranged on the support frame (2a).

6. The adjustable concrete leveling machine according to claim 1, wherein: A walking wheel (1c) is arranged at the bottom of each walking beam (1), and a walking motor (1d) is arranged on each walking beam (1). Each walking motor (1d) drives the walking wheel (1c) to rotate by connecting a transmission chain (1e).

7. The adjustable concrete leveling machine according to claim 1, wherein: An auxiliary platform (6) for assisting in leveling is further arranged at the rear side of the main body frame (2).

8. The adjustable concrete leveling machine according to any one of claims 1 to 7, characterized in that: The leveling system (3) includes a screed (3a). The front end of the screed (3a) is connected to the bottom of the main body frame (2) by setting a front connecting device (3b). The rear end of the screed (3a) is connected to the bottom of the main body frame (2) by setting a rear connecting device (3c). Both the front connecting device (3b) and the rear connecting device (3c) can be adjusted in height. By changing the relative height between the front connecting device (3b) and the rear connecting device (3c), the elevation angle between the screed (3a) and the running direction of the paver is changed.

9. The adjustable concrete leveling machine according to claim 1, wherein: A front baffle (5) is further arranged at the front side of the main body frame (2). The front baffle (5) is vertically movably connected to the main body frame (2) by connecting a lifting screw (5a) capable of adjusting the height.

10. The adjustable concrete leveling machine according to claim 8, wherein: A vibrator (3d) for adjusting the vibration frequency is further arranged on the screed (3a). By changing the vibration frequency of the vibrator (3d), the paver can adapt to different leveling sites.

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