Hydraulic rammer compactor for plateau frozen soil roadbed widening treatment

Abstract

The invention discloses a hydraulic rammer compactor for plateau frozen soil roadbed widening treatment, and relates to the field of pavement construction, the hydraulic rammer compactor comprises a rammer frame assembled at the front end of a forklift, a rammer is placed in the rammer frame, a connecting rod is fixedly arranged at the top of the rammer, a hydraulic driving structure is further arranged in the rammer frame, and the rammer frame is connected with the connecting rod. The hydraulic driving structure is used for driving the rammer to lift and then instantly release through the connecting rod; the rammer comprises a rammer frame and further comprises a dust falling unit, a water supply unit and a touch unit, the dust falling unit is used for spraying water mist to the periphery of the bottom of the rammer frame to achieve the dust falling effect, and the dust falling unit is arranged on the periphery of the rammer frame. When the connecting rod is driven by the hydraulic driving structure to drive the rammer to move upwards and then hit downwards each time, the water supply unit can be started through the touch unit when the connecting rod moves upwards each time, so that the dust falling unit can spray water mist around the bottom of the rammer frame, and the effect of settling raised dust generated by hammering of the rammer is achieved.

Description

Technical Field

[0001] This invention relates to the field of road construction, specifically to a hydraulic compactor for widening and treating permafrost subgrade in high-altitude areas. Background Technology

[0002] In the permafrost region of the plateau, the core of roadbed widening is to control the differential settlement between the old and new roadbeds and prevent longitudinal cracks. Conventional widening techniques use geogrids or dynamic compaction, and the road surface is compacted by hydraulic compactors. The compaction work should be carried out before the permafrost forms (i.e., at temperatures above zero).

[0003] A hydraulic compactor is an engineering device that combines the mobility of a loader with hydraulic compaction technology. It mainly consists of a hammer, a frame, a hydraulic system, and a control system. The hydraulic system lifts the hammer to a certain height and then releases it, allowing it to fall freely. The hammer's weight and impact force compact the ground. However, each time the hammer hits the ground, the loose soil generates a large amount of dust. Since compaction requires frequent impacts, the dust can affect the air quality of the working environment and obstruct the operator's view. Summary of the Invention

[0004] The purpose of this invention is to provide a hydraulic compactor for widening roadbeds in permafrost areas of plateau regions, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a hydraulic compactor for widening roadbeds in high-altitude permafrost areas, comprising: a compaction frame mounted on the front end of a loader, wherein a compaction hammer is placed inside the compaction frame, a connecting rod is fixedly installed on the top of the compaction hammer, and a hydraulic drive structure is also provided inside the compaction frame, wherein the hydraulic drive structure is used to lift the compaction hammer through the connecting rod and then release it instantly. It also includes: a dust suppression unit, used to spray water mist around the bottom perimeter of the tamping frame to suppress dust, the dust suppression unit being located on the periphery of the tamping frame; A water supply unit is used to continuously supply water to the dust suppression unit, and the water supply unit is located above the dust suppression unit; An actuation unit is provided, which actuates the water supply unit by moving the connecting rod upward. The actuation unit is located between the water supply unit and the connecting rod.

[0006] Preferably, the dust suppression unit includes a fixed pipe fixed to the outer side of the bottom of the tamping frame, and a plurality of equidistantly distributed atomizing nozzles are fixedly mounted on the outer surface of the fixed pipe. The output end of each atomizing nozzle is far from the center of the tamping hammer, and the plurality of atomizing nozzles are arranged in a ring. A second conveying pipe is fixedly mounted on the outside of the fixed pipe, and the second conveying pipe and the atomizing nozzles are all connected to the fixed pipe.

[0007] Preferably, the water supply unit includes a mounting plate fixed to the outside of the ramming frame, and a conveying tank is fixedly installed on the outer wall of the mounting plate. A water tank is also fixedly installed on the top of the ramming frame. A first conveying pipe is fixedly connected between the bottom of the conveying tank and the bottom of the water tank. The top of the conveying tank is fixedly connected to the top of the second conveying pipe. A piston block is slidably assembled inside the conveying tank, and a piston rod that slides through the conveying tank is fixedly installed on the top of the piston block. The piston rod moves axially inside the conveying tank. An air hole is opened on the upper end face of the conveying tank. A first spring is fixedly installed between the upper end face of the piston block and the conveying tank, and the first spring is distributed outside the piston rod. A first one-way valve and a second one-way valve are assembled at the joint between the conveying tank and the first and second conveying pipes.

[0008] Preferably, the flow direction of the second one-way valve is one-way flow from the conveying bucket to the second conveying pipe, and the flow direction of the first one-way valve is one-way flow from the first conveying pipe to the conveying bucket.

[0009] Preferably, the top of the water tank is fitted with a removable sealing plug, and the top of the water tank has at least one through hole, with an isolation element disposed inside the through hole.

[0010] Preferably, the isolation member includes a limiting frame fixed inside the through hole, and a hanging rod is fixedly installed inside the limiting frame. A diaphragm is fixedly installed at the bottom of the hanging rod, and the diaphragm elastically covers the lower end face of the through hole, with the covered port of the diaphragm facing upward.

[0011] Preferably, the diaphragm is cap-shaped and is made of silicone rubber.

[0012] Preferably, the actuation unit includes a step block fixed to the upper end face of the piston rod. The step block is a right-angled trapezoid with its inclined surface facing the connecting rod. A retainer is fixedly sleeved on the outer surface of the connecting rod, and a mounting block is provided at one end of the retainer near the step block. A lever is elastically rotatably mounted on the upper end face of the mounting block via a pin and a torsion spring. The end face of the lever away from the connecting rod slides in contact with the inclined surface of the step block. A limit member is provided between the mounting block and the retainer.

[0013] Preferably, the mounting block restricts the downward swing of the lever.

[0014] Preferably, the limiting member includes a limiting sleeve fixed to one end of the retainer near the ladder block. A sliding plate is slidably fitted inside the limiting sleeve, and a sliding rod is fixedly installed inside the sliding plate. Both ends of the sliding rod slide axially through the limiting sleeve. A second spring is fixedly installed between the end of the sliding plate away from the mounting block and the limiting sleeve. One end of the limiting sleeve is fixed to the mounting block, and the other end is dome-shaped. A limiting plate is also fixedly installed on the side wall of the tamping frame, and the top of the limiting plate is a bent portion. The bent portion is inclined upward towards the inside of the tamping frame. The dome-shaped end of the sliding rod slides in contact with the limiting plate and the bent portion. The elastic stiffness of the first spring is greater than that of the second spring.

[0015] Compared with the prior art, the beneficial effects of the present invention are: This invention utilizes the combined action of a dust suppression unit, a water supply unit, and an activation unit. Each time the hydraulic drive structure moves the connecting rod and the hammer upwards and then downwards, the activation unit activates the water supply unit, allowing the dust suppression unit to spray water mist around the bottom of the ramming frame, thus settling the dust generated by the hammer's impact. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a front view of the present invention; Figure 3 This is a schematic diagram of the internal structure of the conveying barrel of the present invention; Figure 4 This is a schematic diagram of the sealing plug structure of the present invention; Figure 5 For the present invention Figure 4 Enlarged view of point A in the middle; Figure 6 This is a schematic diagram of the limiting plate and bending part structure of the present invention; Figure 7 This is a schematic diagram of the internal structure of the limiting sleeve of the present invention.

[0017] In the diagram: 1. Rammer frame; 2. Rammer hammer; 3. Connecting rod; 4. Mounting plate; 5. Conveying tank; 6. Piston block; 7. Piston rod; 8. First spring; 9. Air hole; 10. First conveying pipe; 11. Second conveying pipe; 12. First one-way valve; 13. Second one-way valve; 14. Fixed pipe; 15. Atomizing nozzle; 16. Water tank; 17. Sealing plug; 18. Through hole; 19. Limiting frame; 20. Hanging rod; 21. Diaphragm; 22. Ladder block; 23. Limiting plate; 24. Bending part; 25. Retainer; 26. Limiting sleeve; 27. Sliding plate; 28. Sliding rod; 29. ​​Second spring; 30. Mounting seat block; 31. Pulley block; 32. Pin. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Example: Please refer to Figures 1-7 The figure shows a hydraulic compactor for widening roadbeds in permafrost areas of plateau regions. It includes a compactor frame 1 mounted on the front of a loader, and a hammer 2 is placed inside the compactor frame 1. A connecting rod 3 is fixedly installed on the top of the hammer 2. The compactor frame 1 is also equipped with a hydraulic drive structure. The hydraulic drive structure is used to lift the hammer 2 with the connecting rod 3 and then release it instantly. The hydraulic drive structure is a commonly used structural feature in the prior art. It also includes: a dust suppression unit, which sprays water mist around the bottom of the tamping frame 1 to suppress dust. The dust suppression unit is set on the periphery of the tamping frame 1. The water supply unit is used to continuously supply water to the dust suppression unit, and the water supply unit is located above the dust suppression unit; The actuation unit activates the water supply unit by moving the connecting rod 3 upwards. The actuation unit is located between the water supply unit and the connecting rod 3.

[0020] The dust suppression unit includes a fixed pipe 14 fixed to the outer side of the bottom of the tamping frame 1, and a number of atomizing nozzles 15 are fixedly mounted on the outer surface of the fixed pipe 14. The output end of each atomizing nozzle 15 is far away from the center of the tamping hammer 2, and the number of atomizing nozzles 15 are arranged in a ring. A second conveying pipe 11 is fixedly mounted on the outside of the fixed pipe 14, and the second conveying pipe 11 and the atomizing nozzles 15 are connected to the fixed pipe 14. When the water supply unit delivers high-pressure liquid into the fixed pipe 14, it can be sprayed out through the multiple atomizing nozzles 15.

[0021] The water supply unit includes a mounting plate 4 fixed to the outside of the ramming frame 1, and a conveying tank 5 is fixedly installed on the outer wall of the mounting plate 4. A water tank 16 is also fixedly installed on the top of the ramming frame 1. A first conveying pipe 10 is fixedly connected between the bottom of the conveying tank 5 and the bottom of the water tank 16. The top of the conveying tank 5 is fixedly connected to the top of the second conveying pipe 11. A piston block 6 is slidably assembled inside the conveying tank 5, and a piston rod 7 that slides through the conveying tank 5 is fixedly installed on the top of the piston block 6. The piston rod 7 is axially mounted inside the conveying tank 5. The upper end face of the conveying barrel 5 is provided with an air hole 9. The upper end face of the piston block 6 is fixedly provided with a first spring 8 between it and the conveying barrel 5. The first spring 8 is distributed outside the piston rod 7. The connection between the conveying barrel 5 and the first conveying pipe 10 and the second conveying pipe 11 is equipped with a first one-way valve 12 and a second one-way valve 13. When the piston block 6 moves downward, it can press the water inside the conveying barrel 5 into the interior of the second conveying pipe 11. When the piston block 6 moves upward, it can draw water from the water tank 16 through the first conveying pipe 10.

[0022] The flow direction of the second one-way valve 13 is one-way flow from the conveying tank 5 to the second conveying pipe 11, and the flow direction of the first one-way valve 12 is one-way flow from the first conveying pipe 10 to the conveying tank 5.

[0023] The top of the water tank 16 is fitted with a removable sealing plug 17. Water can be added to the water tank 16 by pulling out the sealing plug 17. The top of the water tank 16 has at least one through hole 18, and an isolation member is provided inside the through hole 18. The isolation member allows outside air to enter the water tank 16, while preventing water inside the water tank 16 from splashing out through the through hole 18 due to the vibration of the hammer 2.

[0024] The isolation component includes a limiting frame 19 fixed inside the through hole 18, and a hanging rod 20 is fixedly installed inside the limiting frame 19. A diaphragm 21 is fixedly installed at the bottom of the hanging rod 20, and the diaphragm 21 elastically covers the lower end face of the through hole 18. The covered port of the diaphragm 21 faces upward. When the air pressure inside the water tank 16 is lower than the outside air pressure, the outside air can push the diaphragm 21 open and enter the inside of the water tank 16. Under the obstruction of the diaphragm 21, water inside the water tank 16 can also be prevented from splashing out through the through hole 18.

[0025] The diaphragm 21 is cap-shaped and made of silicone rubber. The silicone rubber diaphragm 21 has good elasticity and fits more tightly with the water tank 16.

[0026] The triggering unit includes a step block 22 fixed to the upper end face of the piston rod 7. The step block 22 is a right trapezoid with its inclined surface facing the connecting rod 3. A retainer 25 is fixedly sleeved on the outer surface of the connecting rod 3. A mounting block 30 is provided at one end of the retainer 25 near the step block 22. A lever 31 is elastically mounted on the upper end face of the mounting block 30 through a pin 32 and a torsion spring. The end face of the lever 31 away from the connecting rod 3 slides in contact with the inclined surface of the step block 22. A limiting member is provided between the mounting block 30 and the retainer 25. Under the action of the limiting member, the step block 22 can be lifted by the lever 31 when the connecting rod 3 moves upward, and will not be pressed down when it moves downward.

[0027] Mounting block 30 restricts the downward swing of dial block 31.

[0028] The limiting component includes a limiting sleeve 26 fixed to one end of the retainer 25 near the ladder block 22. A sliding plate 27 is slidably fitted inside the limiting sleeve 26, and a sliding rod 28 is fixedly installed inside the sliding plate 27. Both ends of the sliding rod 28 slide axially through the limiting sleeve 26. A second spring 29 is fixedly installed between the end of the sliding plate 27 away from the mounting block 30 and the limiting sleeve 26. One end of the limiting sleeve 26 is fixed to the mounting block 30, and the other end is dome-shaped. A limiting plate 23 is also fixedly installed on the side wall of the ramming frame 1. Furthermore, the top of the limiting plate 23 is a bent portion 24, which is inclined upward towards the inside of the ramming frame 1. The dome-shaped end of the sliding rod 28 slides in contact with the limiting plate 23 and the bent portion 24. The elastic stiffness of the first spring 8 is greater than that of the second spring 29. When the sliding rod 28 abuts against the limiting plate 23, it can lift the step block 22 through the lever 31. When the sliding rod 28 contacts the bent portion 24, the inclined surface of the step block 22 will push the lever 31 away, allowing the piston block 6 to move downward under the elastic push of the first spring 8.

[0029] Working principle: In the existing hydraulic drive structure, each time the connecting rod 3 moves the hammer 2 upward, the dome-shaped end of the slide rod 28 abuts against the outer surface of the limiting plate 23, preventing the slide rod 28 from being pushed by the inclined surface of the ladder block 22. At this time, the push block 31 moves upward with the connecting rod 3, lifting the ladder block 22. When the piston rod 7 moves upward with the piston block 6, it can draw water from the water tank 16 through the first conveying pipe 10 until the dome-shaped end of the slide rod 28 contacts the bent part 24. At this time, the inclined surface of the ladder block 22 can push the push block 31, separating the push block 31 from the ladder block 22. After the ladder block 22 is no longer restricted, the elastic force applied to the piston block 6 by the first spring 8 can press the piston block 6 downward, that is, the water drawn from the conveying tank 5 is conveyed through the second conveying pipe 11 towards the solid. The water inside the fixed pipe 14 is conveyed, and under the continuous pressure of the first spring 8, the water entering the fixed pipe 14 can be sprayed out through several atomizing nozzles 15. Since the spray volume of the atomizing nozzles 15 is small, it cannot quickly drain the water inside the conveying tank 5. That is, the piston block 6 can only move downward at a relatively slow speed. When the connecting rod 3 is lifted to a certain height and released instantly, the connecting rod 3, along with the retainer 25 and the limit sleeve 26, moves downward quickly. The lever block 31 will touch the ladder block 22 that has not yet been reset. Therefore, during the downward movement of the lever block 31, the lever block 31 will be elastically flipped upward to reset in advance, allowing the tamping hammer to hit the ground for compaction. Therefore, each time the tamping hammer hits the ground, it can lift the piston block 6 and then be pressed down and reset by the first spring 8, thereby keeping several atomizing nozzles in the spray state.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hydraulic compactor for widening roadbeds in permafrost areas of high-altitude regions, characterized in that, include: A rammer frame (1) is mounted on the front end of the loader, and a rammer hammer (2) is placed inside the rammer frame (1). A connecting rod (3) is fixedly installed on the top of the rammer hammer (2). A hydraulic drive structure is also installed inside the rammer frame (1). The hydraulic drive structure is used to lift the rammer hammer (2) through the connecting rod (3) and then release it instantly. Also includes: A dust suppression unit is used to spray water mist around the bottom of the ramming frame (1) to suppress dust. The dust suppression unit is located around the ramming frame (1). A water supply unit is used to continuously supply water to the dust suppression unit, and the water supply unit is located above the dust suppression unit; The triggering unit activates the water supply unit by moving the connecting rod (3) upward. The triggering unit is located between the water supply unit and the connecting rod (3).

2. The hydraulic compactor for widening permafrost roadbeds in high-altitude areas according to claim 1, characterized in that: The dust suppression unit includes a fixed pipe (14) fixed on the outer side of the bottom of the tamping frame (1), and a plurality of atomizing nozzles (15) are fixedly mounted on the outer surface of the fixed pipe (14). The output end of each atomizing nozzle (15) is far away from the center of the tamping hammer (2), and the plurality of atomizing nozzles (15) are arranged in a ring. A second conveying pipe (11) is fixedly mounted on the outside of the fixed pipe (14), and the second conveying pipe (11) and the atomizing nozzles (15) are all connected to the fixed pipe (14).

3. The hydraulic compactor for widening permafrost roadbeds in high-altitude areas according to claim 2, characterized in that: The water supply unit includes a mounting plate (4) fixed to the outside of the ramming frame (1), and a conveying tank (5) is fixedly installed on the outer wall of the mounting plate (4). A water tank (16) is also fixedly installed on the top of the ramming frame (1). A first conveying pipe (10) is fixedly connected between the bottom of the conveying tank (5) and the bottom of the water tank (16). The top of the conveying tank (5) is fixedly connected to the top of the second conveying pipe (11). A piston block (6) is slidably assembled inside the conveying tank (5), and a piston rod (7) that slides through the conveying tank (5) is fixedly installed on the top of the piston block (6). An air hole (9) is opened on the upper end face of the conveying tank (5). A first spring (8) is fixedly installed between the upper end face of the piston block (6) and the conveying tank (5). A first one-way valve (12) and a second one-way valve (13) are assembled at the joint of the conveying tank (5) and the first conveying pipe (10) and the second conveying pipe (11).

4. The hydraulic compactor for widening permafrost roadbeds in high-altitude areas according to claim 3, characterized in that: The flow direction of the second one-way valve (13) is one-way flow from the conveying bucket (5) to the second conveying pipe (11), and the flow direction of the first one-way valve (12) is one-way flow from the first conveying pipe (10) to the conveying bucket (5).

5. A hydraulic compactor for widening permafrost roadbeds in high-altitude areas according to claim 3, characterized in that: The top of the water tank (16) is fitted with a removable sealing plug (17), and the top of the water tank (16) is provided with at least one through hole (18), and the interior of the through hole (18) is provided with an isolation component.

6. A hydraulic compactor for widening permafrost roadbeds in high-altitude areas according to claim 5, characterized in that: The isolation component includes a limiting frame (19) fixed inside the through hole (18), and a hanging rod (20) is fixedly installed inside the limiting frame (19). A diaphragm (21) is fixedly installed at the bottom of the hanging rod (20), and the diaphragm (21) elastically covers the lower end face of the through hole (18).

7. A hydraulic compactor for widening permafrost roadbeds in high-altitude areas according to claim 6, characterized in that: The diaphragm (21) is cap-shaped and is made of silicone rubber.

8. A hydraulic compactor for widening permafrost roadbeds in high-altitude areas according to claim 3, characterized in that: The actuation unit includes a step block (22) fixed to the upper end face of the piston rod (7). The step block (22) is a right trapezoid, and the inclined surface of the step block (22) faces the connecting rod (3). A retainer (25) is fixedly sleeved on the outer surface of the connecting rod (3). A mounting block (30) is provided at one end of the retainer (25) near the step block (22). A lever (31) is assembled on the upper end face of the mounting block (30) through a pin (32) and a torsion spring. The end face of the lever (31) away from the connecting rod (3) slides in contact with the inclined surface of the step block (22). A limit member is provided between the mounting block (30) and the retainer (25).

9. A hydraulic compactor for widening permafrost roadbeds in high-altitude areas according to claim 8, characterized in that: The mounting block (30) restricts the downward swing of the lever (31).

10. A hydraulic compactor for widening permafrost roadbeds in high-altitude areas according to claim 8, characterized in that: The limiting component includes a limiting sleeve (26) fixed to one end of the retainer (25) near the ladder block (22). A sliding plate (27) is slidably fitted inside the limiting sleeve (26), and a sliding rod (28) is fixedly installed inside the sliding plate (27). Both ends of the sliding rod (28) pass through the limiting sleeve (26). A second spring (29) is fixedly installed between the end of the sliding plate (27) away from the mounting block (30) and the limiting sleeve (26). One end of the limiting sleeve (26) is fixed to the mounting block (30), and the other end is dome-shaped. A limiting plate (23) is also fixedly installed on the side wall of the ramming frame (1), and the top of the limiting plate (23) is a bent part (24). The dome-shaped end of the sliding rod (28) slides in contact with the limiting plate (23) and the bent part (24).

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