Pile cap capable of reducing noise

Abstract

The utility model relates to the technical field of engineering machinery, in particular to a pile cap capable of reducing noise, which comprises an upper pile cap and a lower pile cap, the upper pile cap and the lower pile cap are mutually connected, one end of the upper pile cap far away from the lower pile cap is connected with a hammer core shell through a flange connecting disc, and a plurality of first mounting grooves are arranged on the upper pile cap along the circumferential direction at intervals. First mounting plates are arranged in the first mounting groove, and a shell is arranged between the first mounting plates; the shell is arranged around the upper pile cap, a first sound insulation cavity is formed between the shell and the upper pile cap, and the first sound insulation cavity is filled with sound insulation materials.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering machinery, in particular to a pile cap capable of reducing noise. Background Art

[0002] The hydraulic hammer is an impact pile hammer. After the hammer core is lifted to the expected height by the hydraulic system and released quickly, it directly acts on the anvil or pile cap of the hydraulic hammer in a manner greater than or close to free fall. After the anvil and the pile cap work on the pile body, the pile body is hammered into the formation. The pile cap structure of a pile hammer with the publication number "CN212582671U" includes an upper pile cap and a lower pile cap. An anvil is fixed on the lower pile cap. A first buffer pad is arranged in the middle of the anvil. A ring sleeve and a second buffer pad are arranged on the outside of the first buffer pad in sequence. During the impact and rebound process of the lower pile cap and the anvil, there is friction resistance between the anvil, the second buffer and the upper pile cap, which slows down the rebound speed of the anvil and the lower pile cap, thereby reducing the impact and vibration between the anvil and the upper pile cap, and then reducing the impact force of the upper pile cap toward the frame and slowing down the vibration; and the first buffer pad and the second buffer pad can slow down the vibration between the anvil and the upper ring, and the pressure plate on the second buffer pad can limit the second buffer pad to the outside of the ring sleeve to prevent the second buffer pad from rebounding out of the ring sleeve.

[0003] It can be seen from the above documents that although the shock-absorbing and protective function is achieved by setting up a buffer structure, in actual use, the existing pile hammer produces relatively loud noise during construction, which affects the surrounding environment, especially during construction in cities. Moreover, the greater the striking energy of the hydraulic pile hammer, the greater the construction noise generated. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide a noise-reducing pile cap in view of the deficiencies of the above-mentioned prior art, so as to achieve noise reduction.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a noise-reducing pile cap, comprising an upper pile cap and a lower pile cap, and the two are connected to each other, and the end of the upper pile cap away from the lower pile cap is connected to the hammer core shell through a flange connection plate, characterized in that: the upper pile cap is provided with a plurality of first mounting grooves at intervals along the circumferential direction, a first mounting plate is provided in the first mounting groove, and an outer shell is provided between each of the first mounting plates; the outer shell is arranged around the upper pile cap, and a first sound insulation cavity is formed between the two, and the first sound insulation cavity is filled with sound insulation material.

[0006] Adopting the above technical scheme: Compared with the prior art which lacks noise reduction structure, the utility model provides a first mounting groove and a first mounting plate on the upper pile cap, and through the setting of the outer shell, a first sound insulation cavity is formed between the outer shell and the outer wall of the upper pile cap, and the first sound insulation cavity is filled with sound insulation material to achieve the function of noise reduction. At the same time, the structure is simple and reasonable, and it is easy to produce and process.

[0007] A further configuration of the utility model is that the shell includes an arc plate, and second mounting plates extending outward are provided at both ends of the arc plate, and a plurality of first mounting holes are provided on the second mounting plate, and second mounting holes corresponding to the first mounting holes are provided on the first mounting plate.

[0008] The above technical solution is adopted: through the setting of the arc plate, it is more compatible with the outer wall of the upper pile cap. At the same time, due to the setting of the second mounting plate and the first and second mounting holes, it is convenient for workers to assemble the arc plate and the upper pile cap, thereby improving the assembly efficiency.

[0009] A further configuration of the utility model is that one end of the upper pile cap away from the lower pile cap is connected to a mounting frame via a flange connection plate, the mounting frame is sleeved outside the hammer core shell, a second sound insulation cavity is formed between the mounting frame and the hammer core shell, and the second sound insulation cavity is filled with sound insulation material.

[0010] The above technical solution is adopted: by setting up a mounting frame, a second sound insulation cavity is formed between the mounting frame and the hammer core shell, and then the sound insulation material is filled into the second sound insulation cavity to further improve the noise reduction effect. At the same time, since the sound insulation material is only filled around the striking surface, a simple structure is achieved and the production cost is reduced.

[0011] A further configuration of the utility model is that: the lower pile cap is provided with a plurality of reinforcing ribs along the circumferential direction, and the end of the lower pile cap away from the upper pile cap is in a trumpet shape.

[0012] The above technical solution is adopted: the structural strength and stability are improved by setting reinforcing ribs, and the lower pile cap is set in a trumpet shape to facilitate the connection between the lower pile cap and the pile body.

[0013] A further configuration of the utility model is that a replacement block is provided in the upper pile cap, the replacement block comprises a cylindrical portion and a raised portion integrally formed with the cylindrical portion and located in the middle of the cylindrical portion, a partition is provided between the upper pile cap and the mounting frame, a through hole is provided in the middle of the partition, and the raised portion is located in the through hole.

[0014] By adopting the above technical solution: the replacement block includes a cylindrical part and a raised part, and the raised part is located in the through hole, which can more effectively transmit the impact force of the hammer core to the pile body, ensuring that the hammer force is transmitted along the axis of the pile body.

[0015] A further configuration of the utility model is that a limiting block is provided between the partition plate and the replacement block, and the limiting block is provided around the raised portion.

[0016] The above technical solution is adopted: by setting the limit block, the upward position of the replacement block is limited to ensure the stability and safety of the piling process.

[0017] The utility model is further described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the installation of the utility model.

[0019] Figure 2 This is an exploded view of the pile cap of the utility model.

[0020] Figure 3 For this utility model Figure 2 Enlarged view of point A in the middle.

[0021] Figure 4 It is a partial cross-sectional view of the utility model.

[0022] Explanation of reference numerals: upper pile cap 1, first mounting groove 11, first mounting plate 12, second mounting hole 121, outer shell 13, arc plate 13a, second mounting plate 13b, first mounting hole 13c, first sound insulation cavity 14, mounting frame 15, second sound insulation cavity 16, replacement block 17, cylindrical portion 171, raised portion 172, partition plate 18, through hole 181, limit block 19, lower pile cap 2, reinforcing rib 21, hammer core shell 3. DETAILED DESCRIPTION

[0023] This specific embodiment and the drawings of the disclosed embodiments only involve structures related to the disclosed embodiments, and other structures may refer to general designs. In the absence of conflicts, the same embodiment and different embodiments of the utility model may be combined with each other.

[0024] like Figure 1-4 A noise-reducing pile cap as shown comprises an upper pile cap 1 and a lower pile cap 2, and the two are connected to each other. The end of the upper pile cap 1 away from the lower pile cap 2 is connected to the hammer core housing 3 through a flange connection plate, the lower pile cap 2 is provided with a plurality of reinforcing ribs 21 along the circumferential direction, and the end of the lower pile cap 2 away from the upper pile cap 1 is horn-shaped, the upper pile cap 1 is provided with a plurality of first mounting grooves 11 at intervals along the circumferential direction, the first mounting groove 11 is provided with a first mounting plate 12, and a shell 13 is provided between each first mounting plate 12; the shell 13 is arranged around the upper pile cap 1, and a first sound insulation cavity 14 is formed between the two, and the first sound insulation cavity 14 is filled with sound insulation material; Figure 2-3The housing 13 shown includes an arc plate 13a, with second mounting plates 13b extending outwardly at both ends of the arc plate 13a, a plurality of first mounting holes 13c are formed on the second mounting plate 13b, and the first mounting plate 12 is provided with second mounting holes 121 corresponding to the first mounting holes 13c.

[0025] like Figure 4 The end of the upper pile cap 1 shown in the figure away from the lower pile cap 2 is connected to a mounting frame 15 through a flange connection plate. The mounting frame 15 is sleeved outside the hammer core shell 3. A second sound insulation cavity 16 is formed between the mounting frame 15 and the hammer core shell 3. The second sound insulation cavity 16 is filled with sound insulation material.

[0026] like Figure 4 The upper pile cap 1 shown is provided with a replacement block 17, which includes a cylindrical portion 171 and a raised portion 172 which is integrally formed with the cylindrical portion 171 and located in the middle of the cylindrical portion 171. A partition 18 is provided between the upper pile cap 1 and the mounting frame 15, and a through hole 181 is provided in the middle of the partition 18. The raised portion 172 is located in the through hole 181. A limit block 19 is provided between the partition 18 and the replacement block 17, and the limit block 19 is arranged around the raised portion 172.

[0027] Compared with the prior art which lacks a noise reduction structure, the utility model provides a first mounting groove 11 and a first mounting plate 12 on the upper pile cap 1, and an arc plate 13a is arranged between the first mounting plate 12, and the arc plate 13a and the outer wall of the upper pile cap 1 form a first sound insulation cavity 14, and the first sound insulation cavity 14 is filled with sound insulation material to achieve the function of noise reduction. At the same time, a mounting frame 15 is provided on the top of the upper pile cap 1, and a second sound insulation cavity 16 is formed between the mounting frame 15 and the hammer core shell 3, and the second sound insulation cavity 16 is also filled with sound insulation material, so as to further improve the noise reduction effect. At the same time, since the sound insulation material is only filled around the striking surface, the effect of simple structure is achieved, the production cost is reduced, and the production and processing are convenient.

Claims

1. A noise-reducing pile cap, comprising an upper pile cap and a lower pile cap, which are connected to each other, wherein one end of the upper pile cap away from the lower pile cap is connected to a hammer core housing via a flange connection plate, characterized in that: The upper pile cap is provided with a plurality of first mounting grooves spaced apart along the circumferential direction, a first mounting plate is provided in the first mounting groove, and an outer shell is provided between each of the first mounting plates; the outer shell is arranged around the upper pile cap, and a first sound insulation cavity is formed between the two, and the first sound insulation cavity is filled with sound insulation material.

2. A noise-reducing pile cap according to claim 1, characterized in that: The housing comprises an arc plate, and second mounting plates extending outward are provided at both ends of the arc plate, a plurality of first mounting holes are provided on the second mounting plate, and second mounting holes corresponding to the first mounting holes are provided on the first mounting plate.

3. A noise-reducing pile cap according to claim 1 or 2, characterized in that: One end of the upper pile cap away from the lower pile cap is connected to a mounting frame through a flange connection plate. The mounting frame is sleeved outside the hammer core shell. A second sound insulation cavity is formed between the mounting frame and the hammer core shell. The second sound insulation cavity is filled with sound insulation material.

4. A noise-reducing pile cap according to claim 1 or 2, characterized in that: The lower pile cap is provided with a plurality of reinforcing ribs along the circumferential direction, and one end of the lower pile cap away from the upper pile cap is in a trumpet shape.

5. The noise-reducing pile cap according to claim 3, characterized in that: A replacement block is provided in the upper pile cap, and the replacement block includes a cylindrical portion and a raised portion integrally formed with the cylindrical portion and located in the middle of the cylindrical portion. A partition is provided between the upper pile cap and the mounting frame, a through hole is provided in the middle of the partition, and the raised portion is located in the through hole.

6. A noise-reducing pile cap according to claim 5, characterized in that: A limiting block is arranged between the partition plate and the substitute striking block, and the limiting block is arranged around the raised portion.

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