Micro-cracking device for cement pavement

Abstract

The utility model relates to a micro-cracking device for a cement pavement. The device is provided with double hammer heads, intelligent continuous tamping can be achieved, left-right movement can be achieved between the supporting frame and the guide rail plate, and the effect that the micro-crack area is large after the device is placed at one position is achieved. According to the technical scheme, the device comprises two mechanisms A which are arranged side by side and are the same in structure, each mechanism A comprises a vertical rectangular frame, and a guide rail plate moving left and right along a bottom plate of a supporting frame is embedded in the bottom plate of the supporting frame; a pair of tripods is oppositely arranged in the middle of the outer side of the rectangular frame, nylon wheels are arranged in the rectangular frame at the upper ends of the tripods, supporting wheel supports are arranged on the rectangular frame at the lower ends of the tripods, and a rammer connecting seat is arranged between the tripods. The nylon wheel support is connected with a lifting oil cylinder, and the lifting oil cylinder drives the hammer head to move up and down. The guide rail plate is connected with an overturning piece, and 90-degree rotation of the rammer compactor is achieved through the overturning piece.

Description

Technical Field

[0001] The utility model relates to the technical field of road surface micro-cracking devices, in particular to a micro-cracking device for cement road surfaces. Background Art

[0002] The quality of highway roadbed filling and compaction will directly affect the settlement, deformation and stability of the roadbed. Therefore, the compaction degree of the roadbed must be strictly controlled during the construction process.

[0003] At present, the relevant equipment for roadbed compaction in my country is mainly ordinary rollers (including single-wheel, double-wheel, rubber-wheel), dynamic rammers, impact rollers, and other small machinery.

[0004] Ordinary rollers have the advantages of good compaction continuity and high surface flatness. At the same time, if it is a vibratory roller, it can also increase the effective compaction depth and improve the compaction efficiency. At present, Germany has developed BTM compaction monitoring equipment, which can perform self-inspection and control of compaction in real time. However, the equipment price is relatively high. At the same time, the compaction work of ordinary rollers is low, and it is necessary to compact back and forth to achieve the compaction effect. The effective compaction depth is also limited, generally 1m to 2m.

[0005] The micro-cracking machine has a large compaction depth that can reach 5m to 10m, and a high single-point compaction degree. Generally, only 1 to 3 tamping times are needed to achieve the required compaction degree. However, the existing micro-cracking machine uses a single point for compaction, which requires repeated movement, has a low compaction efficiency, and can only be transported upright during transportation, which causes inconvenience to the transportation process. Summary of the invention

[0006] In view of this, the utility model provides a micro-cracking device for cement pavement to solve the problems existing in the prior art.

[0007] In order to solve the above technical problems, the technical solution adopted by the utility model is: a device for micro-cracking of cement pavement, characterized in that it comprises two A mechanisms of the same structure arranged side by side, each A mechanism comprises a vertical rectangular frame, the two rectangular frames are arranged in a support frame, and a guide plate that can move left and right along the bottom plate of the support frame is embedded in the bottom plate of the support frame;

[0008] A pair of tripods are arranged opposite to each other in the middle of the outer side of the rectangular frame, a nylon wheel bracket is arranged on the rectangular frame at the upper end of the tripod, a nylon wheel is arranged inside the nylon wheel bracket, a supporting wheel bracket is arranged on the rectangular frame at the lower end, and a supporting wheel is arranged on the supporting wheel bracket to contact the ground, and the movement of the compacting mechanism is realized by the supporting wheel;

[0009] A rammer connection seat is arranged between a pair of tripods, a steel wire rope is arranged on the nylon wheel, one end of the steel wire rope is connected to the hammer head steel wire rope fixing seat, and the other end is connected to the rammer connection seat, a hammer head is fixedly connected to the hammer head steel wire rope fixing seat, and a lifting cylinder is connected to the nylon wheel bracket, and the lifting cylinder is used to realize the rise and fall of the nylon wheel bracket, thereby driving the hammer head to move up and down;

[0010] The guide rail plate is connected with a flipping piece, and the A mechanism is rotated 90 degrees by the flipping piece.

[0011] Furthermore, a pair of guide shafts are fixedly arranged on the nylon wheel bracket, the other ends of the guide shafts are suspended in the air, and the sides are fixed to the rectangular frame body by bolts, and guide cylinders are arranged on the guide shafts.

[0012] Furthermore, a fixed frame is arranged on the support frame, a translation cylinder is arranged on the guide rail plate, the telescopic end of the translation cylinder is connected to the fixed frame, and the support frame can slide left and right on the guide rail plate through the movement of the translation cylinder.

[0013] Furthermore, two fixing frames are provided, two translation cylinders are provided, and reverse direction movement is provided.

[0014] Furthermore, the lifting cylinder is fixed on the rectangular frame through a cylinder fixing plate.

[0015] Furthermore, a hammer head shock-absorbing pad is arranged between the rectangular frame and the support frame.

[0016] Furthermore, the lifting cylinder is arranged in the middle of a pair of guide shafts.

[0017] A compacting machine comprises the double-head continuous dynamic compacting machine.

[0018] Compared with the prior art, the advantages of the utility model are:

[0019] 1) The utility model has a double vertical head tamping function, can tamp intelligently and continuously, has a large tamping work, a large tamping thickness and a large tamping influence depth, can be remotely controlled, has a high degree of intelligence, is fully functional, works stably and reliably, has strong practicability, and has a high value for promotion and application.

[0020] 2) The support frame and the guide plate of the utility model can be moved left and right, so that during the micro-cracking process, the micro-cracking area can be large after the device is placed in one place, without having to move the micro-cracking device back and forth continuously.

[0021] 3) The utility model compaction machine can realize the double-head compaction mechanism to be flipped 90 degrees by the flip cylinder provided with the head part during long-distance transportation, so that it is convenient to transport;

[0022] 4) In order to prevent the lifting cylinder from swinging left and right due to its own large work during the tamping process, the utility model is provided with a guide shaft and a guide cylinder on the nylon wheel bracket to prevent the lifting cylinder from swinging when working.

[0023] 5) The utility model has reasonable design and is easy to use and operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the utility model.

[0025] Figure 2 for Figure 1 Left view of .

[0026] Figure 3 Schematic diagram of the internal structure of the rectangular frame.

[0027] Figure 4 It is a structural schematic diagram of the guide rail plate.

[0028] Explanation of the reference numerals: 1. nylon wheel, 2. lifting cylinder, 3. guide shaft, 4. cylinder fixing plate, 5. guide cylinder, 6. tripod, 7. rectangular frame, 8. hammer head shock-absorbing pad, 9. flip rocker arm fixing, 10. support wheel, 11. hammer head, 12. tipping bucket connecting fixing piece, 13. flip cylinder connecting fixing piece, 14 rammer connecting seat, 15 hammer head wire rope fixing seat, 16. wire rope, 17 fixing frame, 18 translation cylinder, 19 guide plate, 20 support frame, 21 cartridge valve. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] This embodiment provides a device for microcracking a cement pavement, such as Figure 1-4 As shown, it includes two A mechanisms of the same structure arranged side by side, each A mechanism includes a vertical rectangular frame 7, and the two rectangular frames 7 are arranged in a support frame 20. A guide plate 19 that can move left and right along the bottom plate of the support frame 20 is embedded.

[0031] A pair of tripods 6 are arranged opposite to each other in the middle of the outer side of the rectangular frame 7, a nylon wheel bracket is arranged on the rectangular frame 7 at the upper end of the tripod 6, a nylon wheel 1 is arranged in the nylon wheel bracket, a supporting wheel bracket is arranged on the lower end rectangular frame 7, and a supporting wheel 10 is arranged on the supporting wheel bracket to contact the ground, and the movement of the tamping mechanism is realized by the supporting wheel 10;

[0032] A rammer connecting seat 14 is arranged between a pair of tripods 6, and a steel wire rope 16 is arranged on the nylon wheel 1. One end of the steel wire rope 16 is connected to the hammer head steel wire rope fixing seat 15, and the other end is connected to the rammer connecting seat 14. A hammer head 11 is fixedly connected to the hammer head steel wire rope fixing seat 15. A lifting cylinder 2 is connected to the nylon wheel bracket. The lifting cylinder 2 is used to realize the rising and falling of the nylon wheel bracket, thereby driving the hammer head 11 to move up and down.

[0033] The guide plate 19 is connected with a flipping piece, through which the A mechanism is rotated 90°. The flipping piece is an existing component, such as a flipping cylinder, which is connected to the flipping cylinder connecting fixture 13 through the flipping cylinder. The rotating guide plate 19 realizes the rotation of the two rectangular frames 7, and the dump bucket connecting fixture 12 is connected to the vehicle body chassis dump bucket connecting piece.

[0034] A pair of guide shafts 3 are fixed on the above-mentioned nylon wheel bracket, the other end of the guide shaft 3 is suspended, and the side is fixed to the rectangular frame body 7 by bolts. A guide cylinder 5 is arranged on the guide shaft 3. The guide shaft and the guide cylinder ensure that the oil cylinder moves up and down along the same trajectory to avoid shaking.

[0035] The above-mentioned support frame 20 is provided with a fixed frame 17 on the left and right, and two translation cylinders 18 are provided on the guide plate 19 relative to the fixed frame 17. The telescopic end of each translation cylinder 18 is connected to the fixed frame 17. The guide plate 19 is slid left and right on the support frame 20 through the movement of the translation cylinder 18. The two translation cylinders 18 are set to move in opposite directions.

[0036] The lifting cylinder 2 is fixed on the rectangular frame 7 via a cylinder fixing plate 4 .

[0037] A hammer head shock-absorbing pad 8 is arranged between the rectangular frame 7 and the support frame 20. Since the rammer will generate a certain force on the frame and transmit it upward at the moment of ramming the ground, the shock-absorbing pad 8 can reduce the impact on the fuselage.

[0038] The working process of this utility model:

[0039] The structure of the utility model is connected to the chassis of the vehicle body through a chassis dump bucket connecting piece, and is connected to the dump cylinder fixing piece through a dump cylinder arranged behind the head, so as to realize a 90° dumping of the A mechanism, reduce the speed, and facilitate transportation.

[0040] The lifting and lowering of the lifting cylinder drives the nylon wheel bracket to rise and fall. The wire rope passes through the nylon wheel, one end of which is connected and fixed to the rammer connection seat, and the other end is connected and fixed to the hammer head wire rope fixing seat. The cylinder rises to push the nylon wheel up, and the nylon wheel drives the rammer to rise through the wire rope; the cylinder descends to drive the nylon wheel down, and the rammer quickly descends under the action of its own gravity to complete the ramming. The lifting cylinder has a large stroke, and the hammer weighs 3t. If it is lifted too high, it is easy to shake. The function of the guide shaft and guide cylinder is to ensure that the cylinder moves up and down along the same trajectory to avoid shaking.

[0041] When the rammer falls, it needs to tamp the machine ground at a very fast speed, which puts a lot of pressure on the return oil pipe of the lifting cylinder. When the rammer falls, a part of the hydraulic oil in the return oil pipe is directly supplied to the oil inlet circuit under the action of the cartridge valve 21, which not only reduces the pressure of the return oil circuit, but also speeds up the oil inlet speed, so that the rammer can fall faster.

[0042] After completing the tamping of the current target, the ground in different areas at the same position can be tamped under the action of the translation cylinder according to actual needs, compacting the road surface in all directions without dead angles.

[0043] According to different road conditions, the height of the rammer can be adjusted to be more targeted; after tamping, the feedback results of the detection device can be used to judge whether the tamping effect has been achieved.

[0044] The above is only a preferred embodiment of the present invention and does not constitute any limitation to the present invention. Any simple modification, change and equivalent structural change made to the above embodiments according to the technical essence of the present invention shall still fall within the protection scope of the technical solution of the present invention.

Claims

1. A device for micro-cracking cement pavement, characterized in that: It comprises two A mechanisms of the same structure arranged side by side, each A mechanism comprising a vertical rectangular frame (7), the two rectangular frames (7) being arranged in a support frame (20), and a guide plate (19) which can move left and right along the bottom plate of the support frame (20) being embedded; A pair of tripods (6) are arranged opposite to each other in the middle of the outer side of the rectangular frame (7); a nylon wheel bracket is arranged on the rectangular frame (7) at the upper end of the tripod (6); a nylon wheel (1) is arranged in the nylon wheel bracket; a supporting wheel bracket is arranged on the rectangular frame (7) at the lower end; a supporting wheel (10) in contact with the ground is arranged on the supporting wheel bracket; and the movement of the micro-cracking device is achieved by the supporting wheel (10); A rammer connecting seat (14) is arranged between a pair of tripods (6); a steel wire rope (16) is arranged on the nylon wheel (1); one end of the steel wire rope (16) is connected to a hammer head steel wire rope fixing seat (15); and the other end of the steel wire rope is connected to the rammer connecting seat (14); a hammer head (11) is fixedly connected to the hammer head steel wire rope fixing seat (15); a lifting cylinder (2) is connected to the nylon wheel bracket; the lifting cylinder (2) is used to realize the lifting and lowering of the nylon wheel bracket, thereby driving the hammer head (11) to move up and down; The guide rail plate (19) is connected to a flipping piece, and the A mechanism is rotated 90 degrees via the flipping piece.

2. A device for micro-cracking of cement pavement according to claim 1, characterized in that: A pair of guide shafts (3) are fixedly arranged on the nylon wheel bracket, the other end of the guide shaft (3) is suspended in the air, and the side is fixed to the rectangular frame (7) by bolts, and a guide cylinder (5) is arranged on the guide shaft (3).

3. A device for microcracking cement pavement according to claim 1 or 2, characterized in that: The support frame (20) is provided with a fixed frame (17), and the guide rail plate (19) is provided with a translation cylinder (18). The telescopic end of the translation cylinder (18) is connected to the fixed frame (17), and the support frame (20) slides left and right on the guide rail plate (19) through the movement of the translation cylinder (18).

4. A device for micro-cracking of cement pavement according to claim 3, characterized in that: The fixing frames (17) are provided with two, and the translation cylinders (18) are provided with two, which are arranged to move in opposite directions.

5. A device for micro-cracking of cement pavement according to claim 4, characterized in that: The lifting cylinder (2) is fixed on the rectangular frame (7) via a cylinder fixing plate (4).

6. A device for micro-cracking of cement pavement according to claim 5, characterized in that: A hammer head shock-absorbing pad (8) is provided between the rectangular frame (7) and the support frame (20).

7. The device for microcracking cement pavement according to claim 5, characterized in that: The lifting cylinder (2) is arranged in the middle of a pair of guide shafts (3).

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