Paver push wheel telescopic device and paver

Abstract

The utility model discloses a paver push wheel telescopic device and a paver, and the paver push wheel telescopic device comprises a cross beam arranged on a paver rack; the two telescopic frames are symmetrically installed at the left end and the right end of the cross beam, a telescopic oil cylinder is installed between each telescopic frame and the cross beam, and the telescopic frames are driven by the telescopic oil cylinders and slide left and right along the interior of the cross beam; and the two wheel pushing systems are correspondingly installed on the two telescopic frames, and the wheel pushing systems synchronously move along with the telescopic frames. According to the push wheel telescopic device of the paver, the two telescopic frames can move left and right through the stroke change of the telescopic oil cylinder, so that the distance of a push wheel system is driven to change, the distance between the left push wheel and the right push wheel is adjusted to adapt to dump trucks with different widths and tonnages, the operation is simple, the time cost is greatly saved, and the working efficiency is improved. And the intelligent degree and the product competitiveness of the paver can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of push wheel telescopic device of paver and paver, belong to road construction machinery field. BACKGROUND

[0002] Paver is the important equipment of asphalt concrete road surface layer and base layer operation. With the development of paver automation, intelligent, user's requirement to paver push wheel device is higher and higher. When paver is constructed, push wheel device and dump truck rear wheel are directly contacted, and the dump truck to be paved material is unloaded on paver in succession.

[0003] When paver is normally constructed, push wheel device and dump truck rear wheel are contacted, and dump truck advances with paver synchronously, because the size of dump truck is different, and the parking position of dump truck has deviation, push wheel and dump truck cannot be completely opposite, and dump truck top to paver hopper or the situation that to-be-paved material is spilled can occur when unloading. SUMMARY

[0004] In view of the problems existing in the prior art, the utility model provides a kind of push wheel telescopic device of paver and paver, the distance between two push wheels is adjusted to adapt to dump truck of different sizes, and the problem that dump truck cannot be smoothly pushed due to parking position deviation of dump truck can be avoided.

[0005] To achieve the above purpose, a kind of push wheel telescopic device of paver is adopted by the utility model, comprising:

[0006] Crossbeam is installed on paver frame;

[0007] Telescopic frame, two telescopic frames are symmetrically installed on the left and right ends of crossbeam, and telescopic oil cylinder is installed between each telescopic frame and crossbeam, and the telescopic frame is driven by telescopic oil cylinder and slides left and right along the inside of crossbeam;

[0008] Push wheel system, two push wheel systems are correspondingly installed on two telescopic frames, and push wheel system moves synchronously with telescopic frame.

[0009] In some embodiments, the left and right ends of the crossbeam are each provided with a cavity, the telescopic frame is installed in each cavity, one end of the telescopic oil cylinder is connected to the middle part of the crossbeam, the other end is connected to the oil cylinder seat, and the oil cylinder seat is installed on the telescopic frame.

[0010] In some embodiments, the telescopic frame includes an L-shaped main frame body, and the main frame body is provided with a mounting plate for connecting the push wheel system (8).

[0011] In some embodiments, the oil cylinder seat is fixed in the bent part of the main frame body by mounting bolt, and the mounting plate is fixed with the push wheel system by connecting bolt.

[0012] In some embodiments, one end of the push wheel system is fixedly connected with the telescopic frame, and the other end is slidingly connected with the cross beam.

[0013] In some embodiments, one side of the cross beam is provided with two symmetrically arranged sliding tracks, and one end of the push wheel system is provided with a limiting shaft which slides along the sliding track.

[0014] In some embodiments, the limiting shaft is mounted on the push wheel system through a fastening bolt, and a gasket is mounted on the fastening bolt.

[0015] In some embodiments, the telescopic oil cylinder is connected with the hydraulic motor through a hydraulic pipeline and a telescopic valve group, and each telescopic oil cylinder is controlled independently.

[0016] In some embodiments, a pin hole is formed in the middle of the cross beam, and a cross beam pin is mounted in the pin hole and connected with the frame of the paver.

[0017] The second aspect of the utility model further provides a paver, and the paver is provided with the paver push wheel telescopic device.

[0018] Compared with the prior art, the paver push wheel telescopic device can change the distance between the two telescopic frames by changing the stroke of the telescopic oil cylinder, thereby driving the push wheel system to change the distance, adjusting the distance between the left and right push wheels to adapt to dump trucks of different widths and different tonnages, and the operation is simple, time cost is greatly saved, and the intelligent degree of the paver and product competitiveness are improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiment or prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0020] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0021] Figure 2 It is a telescopic frame extension state schematic view of the utility model;

[0022] Figure 3 It is a bottom view of the utility model; Figure 2

[0023] Figure 4 It is a telescopic frame retraction state schematic view of the utility model;

[0024] Figure 5 It is a bottom view of the utility model; Figure 4 ​a bottom view of the device;

[0025] Figure 6 a schematic diagram of a partial internal structure of the device;

[0026] In the figure: 1, crossbeam, 1-1, cavity, 1-2, slide, 2, crossbeam pin shaft, 3, telescopic oil cylinder, 4, oil cylinder pin shaft, 5, mounting bolt, 6, right telescopic frame, 6-1, right main frame body, 6-2, right mounting plate, 7, left telescopic frame, 8, push wheel system, 9, limit shaft, 10, oil cylinder seat, 11, connecting bolt, 12, gasket, 13, fastening bolt. DETAILED DESCRIPTION

[0027] To make the purpose, technical scheme and advantages of the device clearer and more intelligible, the technical scheme of the application is described in detail below through the drawings and specific embodiments. It should be understood that the embodiments of the application and the specific features in the embodiments are detailed descriptions of the technical scheme of the application, rather than limitations of the technical scheme of the application. In the case of no conflict, the technical features in the embodiments of the application and the embodiments can be combined with each other.

[0028] In the description of the device, it should be understood that the directions or position relationships indicated by the terms "left", "right" and the like are based on the directions or position relationships shown in the drawings, and are only for the convenience of describing the device and simplifying the description, and thus cannot be understood as limitations on the protection scope of the device.

[0029] As shown in Figures 1-6 A push wheel telescopic device of a paver, comprising a crossbeam 1, telescopic frames and a push wheel system 8;

[0030] The crossbeam 1 is installed on a paver frame, the telescopic frames are provided in two, the two telescopic frames are symmetrically installed at the left and right ends of the crossbeam 1, a telescopic oil cylinder 3 is installed between each telescopic frame and the crossbeam 1, the telescopic frame is driven by the telescopic oil cylinder 3 and slides left and right along the inside of the crossbeam 1; the two push wheel systems 8 are located on the front side of the crossbeam 1, which is convenient for improving the overall operation level of the paver, and the two push wheel systems 8 are correspondingly installed on the two telescopic frames, and the push wheel system 8 moves synchronously with the telescopic frame. The telescopic oil cylinder 3 drives the two telescopic frames to move on the crossbeam 1, drives the push wheel system 8 installed on the telescopic frame to move synchronously, adjusts the distance between the left and right push wheel systems, adapts to self-unloading trucks of different widths and different tonnages, is simple to operate, greatly saves time cost, and is conducive to improving the intelligent degree of the paver and product competitiveness.

[0031] In some embodiments, as Figures 2-6As shown, the both ends of the crossbeam 1 are provided with cavities 1-1, each cavity 1-1 is provided with the telescopic frame, one end of the telescopic oil cylinder 3 is connected with the middle part of the crossbeam 1, the other end is connected with the oil cylinder base 10, the oil cylinder base 10 is fixedly installed on the telescopic frame.

[0032] In some embodiments, as shown in Figure 6 As shown, the telescopic frame comprises an L-shaped main frame body, and the main frame body is provided with a mounting plate for connecting the push wheel system 8. Taking the right telescopic frame 6 as an example, the right telescopic frame 6 comprises a right main frame body 6-1, the right main frame body 6-1 is provided with a right mounting plate 6-2, the oil cylinder base 10 is fixed on the bending part of the right main frame body 6-1 through mounting bolts 5, and the right mounting plate 6-2 is fixed with the right push wheel system 8 through connecting bolts 11, so that the disassembly, maintenance and repair are more convenient.

[0033] In some embodiments, as shown in Figure 1 、 Figure 6 As shown, one end of the push wheel system 8 is fixedly connected with the telescopic frame, and the other end is slidably connected with the crossbeam 1, and more specifically, one side of the crossbeam 1 is provided with two symmetrical slide ways 1-2, one end of the push wheel system 8 is provided with a limiting shaft 9, and the limiting shaft 9 is limitingly installed in the slide way 1-2 and can slide left and right along the slide way 1-2. The utility model discloses a slide way 1-2 is formed in the crossbeam 1, and the limiting shaft 9 matched with the slide way 1-2 is installed on the push wheel system 8, so that the stability of the sliding of the push wheel system 8 is improved, and the interval adjustment efficiency of the two push wheel systems 8 is improved.

[0034] It should be noted that the limiting shaft 9 can be installed on the push wheel system 8 by using a gasket 12 and a fastening bolt 13, so that the stability is good, and the disassembly and assembly are convenient.

[0035] In some embodiments, as shown in Figures 1-6 As shown, the telescopic oil cylinder 3 is connected with the hydraulic motor through a hydraulic pipeline and a telescopic valve group, and each telescopic oil cylinder is controlled separately, so that the position of the left push wheel system and the right push wheel system can be adjusted flexibly according to the use requirement.

[0036] In some embodiments, as shown in Figures 1-6 As shown, the middle part of the crossbeam 1 is provided with a pin shaft hole, the pin shaft hole is provided with a crossbeam pin shaft 2 connected with the paver frame, and the disassembly and assembly are more convenient.

[0037] The second aspect of the utility model further provides a paver, and the paver is provided with the paver push wheel telescopic device.

[0038] When the positions of the two push wheel systems 8 need to be adjusted, the telescopic oil cylinder 3 drives the left and right telescopic frames 7, 6 to slide at the two ends of the cross beam 1, so that the telescopic frames are in the extended state (as shown in Figure 2 、 Figure 3 or in the retracted state (as shown in Figure 4 、 Figure 5 , and the push wheel systems 8 move synchronously with the left and right telescopic frames, until the distance between the left and right push wheel systems meets the use requirements of the dump truck.

[0039] The telescopic push wheel device of the paver can adapt to dump trucks of different sizes by adjusting the distance between the two push wheels, and can also avoid the problem that the dump truck cannot be smoothly pushed due to the deviation of the parking position of the dump truck, and has good practical application effect.

[0040] In addition, those skilled in the art can understand that although some embodiments described herein include certain features included in other embodiments rather than other features, the combination of features of different embodiments also means that they are within the protection scope of the utility model and form different embodiments. For example, in the above embodiments, those skilled in the art can use in a combined manner according to the known technical solutions and the technical problems to be solved in the present application.

Claims

1. A paver pusher wheel telescopic device, characterized in that, The utility model relates to a paving machine push wheel telescopic device, which comprises the following: a crossbeam (1) mounted on a paving machine frame; two telescopic frames symmetrically mounted on the left and right ends of the crossbeam (1), each telescopic frame being provided with a telescopic oil cylinder (3) mounted between the telescopic frame and the crossbeam (1), the telescopic frame being driven by the telescopic oil cylinder (3) and sliding left and right along the inside of the crossbeam (1); two push wheel systems (8) corresponding mounted on the two telescopic frames, the push wheel systems (8) moving synchronously with the telescopic frames.

2. A push wheel retraction device for a paving machine according to claim 1, wherein The left and right ends of the crossbeam (1) are provided with cavities (1-1), each cavity (1-1) being provided with the telescopic frame, one end of the telescopic oil cylinder (3) being connected to the middle part of the crossbeam (1) and the other end being connected to an oil cylinder seat (10), the oil cylinder seat (10) being mounted on the telescopic frame.

3. A push wheel retraction device for a paving machine according to claim 2, wherein The telescopic frame comprises an L-shaped main frame body, the main frame body being provided with a mounting plate for connecting the push wheel system (8).

4. A push wheel retraction device for a paving machine according to claim 3, wherein The oil cylinder seat (10) is fixed to the bent part of the main frame body by mounting bolts (5), and the mounting plate is fixed to the push wheel system (8) by connecting bolts (11).

5. The push wheel retraction device of claim 1, wherein, One end of the push wheel system (8) is fixedly connected to the telescopic frame, and the other end is slidingly connected to the crossbeam (1).

6. A push wheel retraction device for a paving machine according to claim 5, wherein One side of the crossbeam (1) is provided with two symmetrically arranged slides (1-2), one end of the push wheel system (8) being provided with a limiting shaft (9), the limiting shaft (9) sliding along the slide (1-2).

7. A push wheel retraction device for a paving machine according to claim 6, wherein The limiting shaft (9) is mounted on the push wheel system (8) by fastening bolts (13), and the fastening bolts (13) are provided with washers (12).

8. The push wheel retraction device of claim 1, wherein, The telescopic oil cylinder (3) is connected to a hydraulic motor by a hydraulic pipeline and a telescopic valve group, and each telescopic oil cylinder is controlled independently.

9. The push wheel retraction device of claim 1, wherein, The middle part of the crossbeam (1) is provided with a pin hole, and the pin hole is provided with a crossbeam pin (2) connected to the paving machine frame.

10. A paving machine characterized by, The paving machine is provided with the paving machine push wheel telescopic device according to any one of claims 1-9.

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