Buffer of pile driver

Abstract

The utility model relates to the technical field of pile drivers, and discloses a pile driver buffer which comprises an installation tank, annular plates are fixedly connected to the upper end and the lower end of the outer side of the installation tank respectively, rotating cylinders are rotationally connected to the peripheries of the adjacent sides of the two annular plates respectively, and rotating plates are rotationally connected to the adjacent sides of the rotating cylinders respectively. The other end of each rotating plate is rotationally connected with a rotating short column, a plurality of springs are fixedly connected to the middle of the annular plate at equal intervals, telescopic pipes are installed on the outer sides of the springs, a mounting base is fixedly connected to the bottom of the mounting tank, and a plurality of limiting rods are fixedly connected to the top of the annular plate at the bottom at equal intervals. When the hydraulic device is subjected to impact force, the rotating plate rotates around the rotating cylinder, the spring is compressed and deformed under the assistance of the telescopic pipe to absorb the impact force, the limiting rod and the fixing plate limit the moving range of the annular plate, the spring and the rotating plate are matched to absorb the impact force, the hydraulic device is assisted in buffering, and the buffering effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of pile driver technology, and in particular to a pile driver buffer. Background Technology

[0002] A pile driver is a heavy mechanical device used in building construction. Its main function is to drive piles into the ground to improve the bearing capacity and stability of the foundation. Common types include drop hammer pile drivers, air hammer pile drivers, diesel hammer pile drivers, and hydraulic hammer pile drivers. They are widely used in various building projects, bridge projects, and port engineering foundation construction. Their working principle is to use the impact or vibration force generated by the power device to make the pile overcome the resistance of the soil and sink to the predetermined depth.

[0003] A pile driver buffer is a crucial component installed on a pile driver. Its main function is to absorb and disperse the enormous impact force generated by the pile hammer on the pile body and the entire pile driving system during pile driving operations. By absorbing and dispersing energy, it reduces the stress on various equipment components, lowers vibration and noise, minimizes equipment damage and wear caused by instantaneous impacts, extends the service life of the pile driver, and improves the stability and safety of pile driving operations, making the pile driving process smoother and more efficient. However, during use, the viscosity of the hydraulic oil changes with temperature. In low-temperature environments, the viscosity of the hydraulic oil increases, which can slow down the buffer's response speed and reduce its buffering effect. In high-temperature environments, the viscosity of hydraulic oil decreases, increasing the probability of leakage. This limits the use of hydraulic dampers under extreme temperature conditions. Existing technologies use devices that automatically adjust the size of the throttle orifice based on oil temperature. At low temperatures, the throttle orifice automatically increases to allow the hydraulic oil to flow more smoothly; at high temperatures, the throttle orifice is appropriately reduced to prevent excessive leakage due to decreased oil viscosity. This improves the damper's adaptability to different temperatures. However, relying solely on the resistance of the hydraulic oil for buffering limits the range of buffering force adjustment under different impact speeds and load conditions, resulting in an unsatisfactory buffering effect. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a pile driver buffer, which aims to improve the problem that the existing technology relies solely on the resistance of hydraulic oil for buffering, resulting in a relatively limited range of buffering force adjustment under different impact speeds and load conditions, leading to unsatisfactory buffering effects.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a pile driver buffer, comprising a mounting tank, annular plates mounted on the upper and lower outer sides of the mounting tank, rotating cylinders rotatably connected to the four sides of adjacent sides of two annular plates, rotating plates rotatably connected to adjacent sides of multiple rotating cylinders, and rotating short columns rotatably connected to the other ends of the rotating plates, multiple springs fixedly connected at equal intervals in the middle of the annular plates, telescopic tubes mounted on the outer sides of the springs, a mounting base fixedly connected to the bottom of the mounting tank, multiple limiting rods fixedly connected at equal intervals to the top of the bottom annular plate, the top of the limiting rods penetrating the top annular plate and fixedly connected to a fixing plate, a mounting base fixedly connected to the bottom of the mounting tank, a mounting top plate fixedly connected to the top of the mounting tank, and a filtering mechanism installed inside the mounting tank for filtering hydraulic oil.

[0006] As a further description of the above technical solution:

[0007] The filtration mechanism includes a filter box, which is fixedly connected to the upper inner side of the mounting tank. Microporous filter paper is installed inside the filter box, and a filter plate is provided on the top of the filter box. A threaded rod is rotatably connected to the middle of the mounting top plate, and a pressure plate is threadedly connected to the outer side of the threaded rod. Limiting rods are slidably connected to the outer perimeter of the pressure plate. A fixing circular plate is fixedly connected to the top of the threaded rod, and an oil inlet pipe is connected to the front side of the mounting top plate.

[0008] As a further description of the above technical solution:

[0009] A connecting rod is fixedly connected to the top of the fixed circular plate, and a turntable is fixedly connected to the outside of the connecting rod.

[0010] As a further description of the above technical solution:

[0011] A slot plate is fixedly connected to the center of the front side of the mounting base, and a notice board is provided inside the slot plate.

[0012] As a further description of the above technical solution:

[0013] A fixing ring is fixedly connected to the bottom outer side of the mounting base, and a mounting base plate is fixedly connected to the bottom of the fixing ring.

[0014] As a further description of the above technical solution:

[0015] Bolts are threaded at all four corners of the outer side of the mounting base plate.

[0016] As a further description of the above technical solution:

[0017] A circular cap is installed on the top of the oil inlet pipe.

[0018] As a further description of the above technical solution:

[0019] A fixed cylinder is fixedly connected to the top center of the circular cover.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, when subjected to impact force, the hydraulic device inside the tank buffers the impact, the rotating plate rotates around the rotating cylinder, the spring is compressed and deformed with the assistance of the telescopic tube to absorb the impact force, the limiting rod and the fixing plate limit the movement range of the annular plate to prevent excessive displacement, and the mounting base and the mounting top plate fix the whole. Through the above process, the spring and the rotating plate cooperate to absorb the impact force, assist the hydraulic device in buffering, and improve the buffering effect.

[0022] 2. In this utility model, rotating the turntable causes the connecting short rod to drive the threaded rod to rotate, and the pressure plate moves linearly up and down along the threaded rod under the guidance of the limiting thin rod. The filter plate initially intercepts the hydraulic oil, blocking larger particulate impurities. The hydraulic oil enters the filter box, where microporous filter paper finely filters out tiny impurities. The downward pressure of the pressure plate enhances the filtration effect and improves the filtration quality of the hydraulic oil. Attached Figure Description

[0023] Figure 1 This is a perspective view of a pile driver buffer proposed in this utility model;

[0024] Figure 2 This is a front view of a pile driver buffer proposed in this utility model;

[0025] Figure 3 This is a top view of a pile driver buffer proposed in this utility model;

[0026] Figure 4 This is a partial structural schematic diagram of a pile driver buffer proposed in this utility model;

[0027] Figure 5 This is a partial structural exploded view of a pile driver buffer proposed in this utility model.

[0028] Legend:

[0029] 1. Mounting tank; 2. Filtering mechanism; 201. Threaded rod; 202. Oil inlet pipe; 203. Pressure plate; 204. Filter plate; 205. Filter box; 206. Microporous filter paper; 207. Limiting rod; 208. Fixing circular plate; 3. Turntable; 4. Connecting short rod; 5. Limiting rod; 6. Fixing plate; 7. Rotating cylinder; 8. Rotating plate; 9. Annular plate; 10. Telescopic tube; 11. Bolt; 12. Mounting base plate; 13. Notice board; 14. Slot plate; 15. Rotating short column; 16. Mounting base; 17. Mounting top plate; 18. Circular cover; 19. Fixing cylinder; 20. Fixing ring; 21. Spring. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Reference Figure 1 , Figure 2 and Figure 4 This utility model provides an embodiment of a pile driver buffer, comprising a mounting tank 1. Annular plates 9 are mounted on the upper and lower outer sides of the mounting tank 1. Rotating cylinders 7 are rotatably connected to the perimeter of adjacent sides of two annular plates 9. Rotating plates 8 are rotatably connected to adjacent sides of multiple rotating cylinders 7. Rotating short columns 15 are rotatably connected to the other ends of the rotating plates 8. Multiple springs 21 are fixedly connected at equal intervals in the middle of the annular plates 9. The installation of springs 21 absorbs a portion of the impact force. Telescopic tubes 10 are mounted on the outer sides of the springs 21. A mounting base 16 is fixedly connected to the bottom of the mounting tank 1. The bottom annular plates 9... Multiple limiting rods 5 are fixedly connected at equal intervals at the top of the installation tank 1. The top of the limiting rods 5 passes through the top annular plate 9 and is fixedly connected to a fixing plate 6. The installation of the limiting rods 5 prevents the annular plate 9 from moving excessively. The bottom of the installation tank 1 is fixedly connected to an installation base 16, and the top of the installation tank 1 is fixedly connected to an installation top plate 17. The installation tank 1 is equipped with a filter mechanism 2, which is used for filtering hydraulic oil. The bottom outer side of the installation base 16 is fixedly connected to a fixing ring 20, and the bottom of the fixing ring 20 is fixedly connected to an installation base plate 12. Bolts 11 are threadedly connected to the four corners of the outer side of the installation base plate 12.

[0032] Specifically, upon impact, the hydraulic device inside the mounting tank 1 first acts as a buffer. Subsequently, it causes the rotating plate 8 to rotate around the rotating cylinder 7, driving the rotating short column 15 to rotate synchronously. With the assistance of the telescopic tube 10, the spring 21 undergoes compression deformation, absorbing part of the impact energy. The limiting rod 5 and the fixing plate 6 limit the movement range of the annular plate 9 to prevent excessive displacement. The bottom mounting base 16 and the top mounting plate 17 of the mounting tank 1 ensure the stable installation of the overall structure. Through this series of actions, the synergistic effect of the spring 21 and the rotating plate 8 further absorbs the impact force, assisting the hydraulic device in buffering, thereby improving the overall working efficiency.

[0033] Reference Figure 1 , Figure 3 and Figure 5 The filtration mechanism 2 includes a filter box 205, which is fixedly connected to the upper inner part of the mounting tank 1. Microporous filter paper 206 is installed inside the filter box 205. A filter plate 204 is provided on the top of the filter box 205. A threaded rod 201 is rotatably connected to the middle of the mounting top plate 17. A pressure plate 203 is threadedly connected to the outer side of the threaded rod 201. Limiting rods 207 are slidably connected to the outer periphery of the pressure plate 203. A fixed circular plate 208 is fixedly connected to the top of the threaded rod 201. An oil inlet pipe 202 is connected to the front side of the mounting top plate 17. A connecting short rod 4 is fixedly connected to the top of the fixed circular plate 208. A turntable 3 is fixedly connected to the outer side of the connecting short rod 4. A circular cover 18 is installed on the top of the oil inlet pipe 202. A fixed cylinder 19 is fixedly connected to the middle of the top of the circular cover 18.

[0034] Specifically, firstly, the turntable 3 is rotated, causing the connecting short rod 4 to rotate, which in turn drives the threaded rod 201 to rotate. Subsequently, the pressure plate 203, guided and restricted by the limiting thin rod 207, moves vertically along the threaded rod 201. Through the installation of the filter plate 204, the hydraulic oil first undergoes preliminary interception and filtration to block larger particulate impurities. The hydraulic oil then flows into the filter box 205, where the microporous filter paper 206 further performs fine filtration to remove tiny impurities. The downward pressure of the pressure plate 203 enhances the filtration effect of the hydraulic oil through the filter plate 204 and the microporous filter paper 206, thereby achieving high-efficiency filtration of the hydraulic oil and improving filtration efficiency.

[0035] Reference Figure 1 , Figure 2 and Figure 3 A slot plate 14 is fixedly connected to the front center of the mounting base 16, and a notice board 13 is provided inside the slot plate 14;

[0036] Specifically, the installation of the card slot plate 14 facilitates the replacement of the notice board 13, and the installation of the notice board 13 facilitates the reminder to staff.

[0037] Working principle: When subjected to impact, the hydraulic device inside the mounting tank 1 first acts as a buffer. Then, the rotating plate 8 rotates around the rotating cylinder 7, causing the rotating short column 15 to rotate accordingly. The spring 21 is compressed and deformed with the assistance of the telescopic tube 10, thereby absorbing part of the impact force. The limiting rod 5 and the fixing plate 6 limit the movement range of the annular plate 9 to prevent excessive displacement. The mounting base 16 at the bottom of the mounting tank 1 and the mounting top plate 17 at the top are used for overall installation and fixation. Through the above process, the cooperation between the spring 21 and the rotating plate 8 can absorb part of the impact force, thereby assisting the hydraulic device in buffering and improving working efficiency.

[0038] First, rotating the turntable 3 causes the connecting short rod 4 to rotate, which in turn causes the threaded rod 201 to rotate. This causes the pressure plate 203 to move up and down linearly along the threaded rod 201 under the guidance and limiting action of the limiting thin rod 207. The installation of the filter plate 204 first intercepts and filters the hydraulic oil, blocking larger particles of impurities. Then, the hydraulic oil enters the filter box 205 and is further finely filtered by the internal microporous filter paper 206 to remove tiny impurities. The downward pressure of the pressure plate 203 enhances the filtration effect of the hydraulic oil through the filter plate 204 and the microporous filter paper 206, ultimately achieving the filtration of the hydraulic oil and improving the filtration effect.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A pile driver buffer, comprising a mounting tank (1), characterized in that: The upper and lower outer sides of the installation tank (1) are equipped with annular plates (9). Rotating cylinders (7) are rotatably connected to the adjacent sides of the two annular plates (9). Rotating plates (8) are rotatably connected to the adjacent sides of the multiple rotating cylinders (7). Rotating short columns (15) are rotatably connected to the other end of the rotating plates (8). Multiple springs (21) are fixedly connected at equal intervals in the middle of the annular plates (9). Telescopic tubes (10) are installed on the outer side of the springs (21). Multiple limiting rods (5) are fixedly connected at equal intervals at the top of the bottom annular plates (9). The top of the limiting rods (5) passes through the top annular plates (9) and is fixedly connected to a fixing plate (6). The bottom of the installation tank (1) is fixedly connected to an installation base (16). The top of the installation tank (1) is fixedly connected to an installation top plate (17). A filter mechanism (2) is installed inside the installation tank (1). The filter mechanism (2) is used for filtering hydraulic oil.

2. A pile driver buffer according to claim 1, characterized in that: The filtration mechanism (2) includes a filter box (205), which is fixedly connected to the upper inner side of the mounting tank (1). Microporous filter paper (206) is installed inside the filter box (205). A filter plate (204) is provided on the top of the filter box (205). A threaded rod (201) is rotatably connected to the middle of the mounting top plate (17). A pressure plate (203) is threadedly connected to the outer side of the threaded rod (201). Limiting rods (207) are slidably connected to the outer periphery of the pressure plate (203). A fixing circular plate (208) is fixedly connected to the top of the threaded rod (201). An oil inlet pipe (202) is connected to the front side of the mounting top plate (17).

3. A pile driver buffer according to claim 2, characterized in that: The top of the fixed circular plate (208) is fixedly connected to a connecting short rod (4), and the outside of the connecting short rod (4) is fixedly connected to a turntable (3).

4. A pile driver buffer according to claim 1, characterized in that: A slot plate (14) is fixedly connected to the middle of the front side of the mounting base (16), and a notice board (13) is provided inside the slot plate (14).

5. A pile driver buffer according to claim 1, characterized in that: A fixing ring (20) is fixedly connected to the bottom outer side of the mounting base (16), and a mounting base plate (12) is fixedly connected to the bottom of the fixing ring (20).

6. A pile driver buffer according to claim 5, characterized in that: Bolts (11) are threaded at the four corners of the outer side of the mounting base plate (12).

7. A pile driver buffer according to claim 2, characterized in that: A circular cap (18) is installed on the top of the oil inlet pipe (202).

8. A pile driver buffer according to claim 7, characterized in that: A fixed cylinder (19) is fixedly connected to the top center of the circular cover (18).

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