Anti-adsorption combined dynamic compaction hammer
By opening cross grooves on the contact plate surface of the strong tamp hammer and adopting a specific assembly sequence, the problem that the strong tamp hammer is prone to burying the hammer in deep and complicated soil foundations is solved, and efficient construction operations are achieved.
Patent Information
- Application Number
- CN202422138794.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-02
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-09-02
AI Technical Summary
In deep, complex and efficient foundation projects, existing strong ramming hammers are prone to burying hammers, resulting in increased construction complexity and reduced efficiency.
An anti-adsorption combined strong tamp hammer is designed. By opening a cross groove on the surface of the contact disc and adopting a specific installation sequence and structural design during assembly, an annular groove is formed to reduce the contact area between the tamped earth hammer and the soil layer and prevent adsorption.
Effectively prevent the adsorption of rammed earth hammers and soil layers, simplify the hammer lifting process, and improve construction efficiency.
Smart Images
Figure CN223017595U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of ramming hammers, and specifically to an anti - adsorption combined dynamic compaction hammer. Background Technique
[0002] A dynamic compaction hammer is a hammer used to compact the bearing capacity of deep foundations. It aims to improve the durability and safety of buildings. Through the huge impact force generated by free - fall motion, it strongly compacts the foundation, reduces the compressibility of foundation soil, improves strength and stability. The dynamic compaction hammer is widely used in infrastructure projects such as buildings, roads, and bridges, and is particularly suitable for treating foundations such as gravel soil, sandy soil, low - saturation silt and clay. Its working principle is simple and efficient, and it is one of the important means of foundation reinforcement.
[0003] Currently, in projects with deep miscellaneous fill foundations, the dynamic compaction process is usually used for reinforcement. In existing dynamic compaction construction, although the size of the compaction hammer is relatively fixed, when the miscellaneous fill or backfill in the soil layer is thick, the high - energy - level compaction hammer sinks deep into the soil and is prone to being buried. It is necessary to use a crane or an excavator to pull it out. Because it takes extra time and resources to deal with the problem of the buried hammer, it not only increases the complexity of the construction, but also reduces the overall construction efficiency. Utility Model Content
[0004] In view of the deficiencies of the prior art, this application provides an anti - adsorption combined dynamic compaction hammer, which has the advantages of being easy to take out, etc., and solves the problem that currently, in projects with deep miscellaneous fill foundations, the dynamic compaction process is usually used for reinforcement. In existing dynamic compaction construction, although the size of the compaction hammer is relatively fixed, when the miscellaneous fill or backfill in the soil layer is thick, the high - energy - level compaction hammer sinks deep into the soil and is prone to being buried. It is necessary to use a crane or an excavator to pull it out. Because it takes extra time and resources to deal with the problem of the buried hammer, it not only increases the complexity of the construction, but also reduces the overall construction efficiency.
[0005] To achieve the above object, this application provides the following technical solution: An anti - adsorption combined dynamic compaction hammer, including an installation disk, a first accumulation disk, a second accumulation disk, and a contact disk. A hoisting frame is fixedly connected to the upper end of the installation disk. A cross - groove is opened on the surface of the contact disk. Four installation holes are opened inside the installation disk and are distributed in a circumferential array. Bolts are slidably connected inside the installation holes. The installation disk has the same diameter as the second accumulation disk, and the first accumulation disk has the same diameter as the contact disk. The installation order of the installation disk, the first accumulation disk, the second accumulation disk, and the contact disk is that the installation disk is above, the first accumulation disk is below the installation disk, the second accumulation disk is below the first accumulation disk, and the contact disk is below the second accumulation disk.
[0006] Through the above solution, by providing a cross groove on the surface of the contact disk, and during the assembly of the rammer, arranging the mounting disk on top, the first accumulation disk below the mounting disk, the second accumulation disk below the first accumulation disk, and the contact disk below the second accumulation disk. Since the diameters of the first accumulation disk and the contact disk are smaller than those of the mounting disk and the second accumulation disk, an annular groove will be formed on the surface of the rammer after installation. The cooperation between the annular groove and the cross groove during ramming can reduce the contact area between the rammer and the soil layer, thereby preventing the rammer from being adsorbed by the soil layer. At the same time, the cross groove allows air to circulate on the surface of the contact disk, further preventing the bottom soil layer from adsorbing the rammer, enabling the rammer to be easily lifted out, and thus significantly reducing the difficulty of the hammer lifting work and improving the construction efficiency.
[0007] Further, four first through holes are provided inside the first accumulation disk, which are arranged in a circular array and correspond to the mounting holes. The diameter of the first through holes is the same as that of the mounting holes.
[0008] Through the above solution, it is allowed that the bolt can not only pass through the mounting hole of the mounting disk, but also continue to pass through the first through hole of the first accumulation disk.
[0009] Further, four second through holes are provided inside the second accumulation disk, which are arranged in a circular array and correspond to the first through holes. The diameter of the second through holes is the same as that of the first through holes.
[0010] Through the above solution, during use, the bolt needs to pass through the second through hole to realize the installation of the second accumulation disk.
[0011] Further, four connection holes are provided inside the contact disk, which are arranged in a circular array and correspond to the second through holes. The diameter of the connection holes is the same as that of the second through holes.
[0012] Through the above solution, the diameter of the connection holes is the same as that of the second through holes, enabling the bolt to smoothly pass through all the holes and tightly connect the mounting disk, the first accumulation disk, the second accumulation disk, and the contact disk together.
[0013] Further, one end of the bolt passes through the mounting hole, the first through hole, the second through hole, and the connection hole and is threadedly connected with a nut.
[0014] Through the above solution, the bolt is threadedly connected with the nut, which can ensure the tight connection of each component, making the dynamic compaction hammer a stable whole, capable of withstanding huge impact forces and vibrations, suitable for treating soft and highly permeable cohesive soil foundations. At the same time, it is also convenient for the assembly and disassembly of the rammer, which is beneficial for maintenance and component replacement.
[0015] Further, first threaded grooves are respectively formed at positions on the surface of the mounting disc corresponding to the four mounting holes. An upper dust cover is threadedly connected inside the first threaded groove, and an upper dust cover slotted hole is formed on the surface of the upper dust cover.
[0016] Through the above solution, an upper dust cover slotted hole is formed on the surface of the upper dust cover, which is convenient for installation and disassembly operations using a flat-blade screwdriver. The upper dust cover is tightly connected to the mounting disc through the first threaded groove, which not only ensures the dust-proof effect but also facilitates subsequent maintenance.
[0017] Further, second threaded grooves are respectively formed at positions on the surface of the contact disc corresponding to the four connection holes. A lower dust cover is threadedly connected inside the second threaded groove, and a lower dust cover slotted hole is formed on the surface of the lower dust cover.
[0018] Through the above solution, the lower dust cover can reduce the entry of soil into the second threaded groove during operation, thereby preventing it from entering between the bolt and the nut and affecting disassembly.
[0019] Further, the mounting disc, the first accumulative disc, the second accumulative disc, and the contact disc are all made of stainless steel. The mounting disc and the second accumulative disc have the same diameter, the first accumulative disc and the contact disc have the same diameter, and the diameters of the first accumulative disc and the contact disc are smaller than those of the mounting disc and the second accumulative disc.
[0020] Through the above solution, the mounting disc, the first accumulative disc, the second accumulative disc, and the contact disc are all made of stainless steel, which has the characteristics of corrosion resistance and high strength and is not easily damaged during use.
[0021] Compared with the prior art, the technical solution of the present application has the following beneficial effects:
[0022] For this anti-adsorption combined dynamic compaction hammer, a cross slot is formed on the surface of the contact disc. At the same time, when assembling the dynamic compaction hammer, the mounting disc is on the top, the first accumulative disc is below the mounting disc, the second accumulative disc is below the first accumulative disc, and the contact disc is below the second accumulative disc. Since the diameters of the first accumulative disc and the contact disc are smaller than those of the mounting disc and the second accumulative disc, an annular groove will be formed on the surface of the dynamic compaction hammer after installation. The cooperation between the annular groove and the cross slot during dynamic compaction can reduce the contact area between the dynamic compaction hammer and the soil layer, thereby preventing the dynamic compaction hammer from adsorbing to the soil layer. At the same time, the cross slot allows air to flow on the surface of the contact disc, further preventing the bottom soil layer from adsorbing the dynamic compaction hammer, enabling the dynamic compaction hammer to be easily lifted out, and thus greatly reducing the difficulty of the hammer lifting work and improving the construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 It is a schematic diagram of the overall structure of the present application;
[0024] Figure 2 Schematic diagram of the cross-slot opening structure of this application;
[0025] Figure 3 Front sectional view of this application;
[0026] Figure 4 is Figure 3 Enlarged view of the structure at position A in
[0027] Figure 5 is Figure 3 Enlarged view of the structure at position B in
[0028] In the figure:
[0029] 1. Installation disc; 2. Lifting frame; 3. First accumulation disc; 4. Second accumulation disc; 5. Contact disc; 6. Cross-slot; 7. Installation hole; 8. First through-hole; 9. Second through-hole; 10. Connection hole; 11. Bolt; 12. First thread groove; 13. Upper dust cover; 14. Upper dust cover straight slot; 15. Nut; 16. Second thread groove; 17. Lower dust cover; 18. Lower dust cover straight slot. Specific implementation mode
[0030] Next, the technical solutions in the embodiments of this application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of this application.
[0031] Please refer to Figure 1 , Figure 2 and Figure 3 , a kind of anti-adsorption combined dynamic compaction hammer in this embodiment, including an installation disc 1, a first accumulation disc 3, a second accumulation disc 4, and a contact disc 5. A lifting frame 2 is fixedly connected to the upper end of the installation disc 1. A cross-slot 6 is opened on the surface of the contact disc 5. Four installation holes 7 arranged in a circumferential array are opened inside the installation disc 1. A bolt 11 is slidably connected inside the installation hole 7. The installation disc 1 has the same diameter as the second accumulation disc 4, and the first accumulation disc 3 has the same diameter as the contact disc 5. The installation order of the installation disc 1, the first accumulation disc 3, the second accumulation disc 4, and the contact disc 5 is that the installation disc 1 is above, the first accumulation disc 3 is below the installation disc 1, the second accumulation disc 4 is below the first accumulation disc 3, and the contact disc 5 is below the second accumulation disc 4.
[0032] Please refer to Figure 3, four first through holes 8 which are arranged in a circumferential array and correspond to the mounting holes 7 are formed inside the first accumulation disk 3. The diameter of the first through holes 8 is the same as that of the mounting holes 7, allowing the bolt 11 to not only pass through the mounting holes 7 of the mounting disk 1, but also continue to pass through the first through holes 8 of the first accumulation disk 3. Four second through holes 9 which are arranged in a circumferential array and correspond to the first through holes 8 are formed inside the second accumulation disk 4. The diameter of the second through holes 9 is the same as that of the first through holes 8. When in use, the bolt 11 needs to pass through the second through holes 9 to realize the installation of the second accumulation disk 4. Four connection holes 10 which are arranged in a circumferential array and correspond to the second through holes 9 are formed inside the contact disk 5. The diameter of the connection holes 10 is the same as that of the second through holes 9. The diameter of the connection holes 10 is the same as that of the second through holes 9, enabling the bolt 11 to smoothly pass through all the holes, tightly connecting the mounting disk 1, the first accumulation disk 3, the second accumulation disk 4 and the contact disk 5 together. One end of the bolt 11 passes through the mounting holes 7, the first through holes 8, the second through holes 9, the connection holes 10 and is threadedly connected with a nut 15. The bolt 11 is threadedly connected with the nut 15, which can ensure the tight connection of each component, making the dynamic compaction hammer into a stable whole, capable of withstanding huge impact force and vibration, suitable for treating soft and highly permeable cohesive soil foundations. At the same time, it is also convenient for the assembly and disassembly of the rammer, which is beneficial for maintenance and component replacement.
[0033] Please refer to Figure 3 , Figure 4 and Figure 5 , first thread grooves 12 are respectively formed at positions corresponding to the four mounting holes 7 on the surface of the mounting disk 1. Upper dust covers 13 are threadedly connected inside the first thread grooves 12. Upper dust cover one - word grooves 14 are formed on the surfaces of the upper dust covers 13. The upper dust cover one - word grooves 14 are formed on the surfaces of the upper dust covers 13, which is convenient for installation and disassembly operations using a flat - bladed screwdriver. The upper dust covers 13 are tightly connected to the mounting disk 1 through the first thread grooves 12, which not only ensures the dust - proof effect but also facilitates subsequent maintenance. Second thread grooves 16 are respectively formed at positions corresponding to the four connection holes 10 on the surface of the contact disk 5. Lower dust covers 17 are threadedly connected inside the second thread grooves 16. Lower dust cover one - word grooves 18 are formed on the surfaces of the lower dust covers 17. The lower dust covers 17 can reduce the entry of soil into the second thread grooves 16 during the working process and then into the space between the bolt 11 and the nut 15, which affects disassembly.
[0034] Please refer to Figure 1, the mounting disc 1, the first accumulation disc 3, the second accumulation disc 4, and the contact disc 5 are all made of stainless steel. The mounting disc 1 and the second accumulation disc 4 have the same diameter, and the first accumulation disc 3 and the contact disc 5 have the same diameter. The diameters of the first accumulation disc 3 and the contact disc 5 are smaller than those of the mounting disc 1 and the second accumulation disc 4. The mounting disc 1, the first accumulation disc 3, the second accumulation disc 4, and the contact disc 5 are all made of stainless steel, and have the characteristics of corrosion resistance and high strength, and are not easily damaged during use.
[0035] It should be noted that in actual use, multiple first accumulation discs 3 and second accumulation discs 4 can be prepared. Before ramming the soil, the installation quantities of the first accumulation disc 3 and the second accumulation disc 4 can be selected according to different requirements, which is applicable to different working needs.
[0036] The working principle of the above embodiment is as follows:
[0037] First, place the mounting disc 1 above, and its upper end is fixedly connected with a lifting frame 2 for convenient subsequent lifting operations. Then, install the first accumulation disc 3 below the mounting disc 1 to ensure that the first through hole 8 inside the first accumulation disc 3 corresponds to the mounting hole 7 of the mounting disc 1. Next, install the second accumulation disc 4 below the first accumulation disc 3, and the second through hole 9 inside the second accumulation disc 4 needs to correspond to the first through hole 8 of the first accumulation disc 3. Finally, install the contact disc 5 below the second accumulation disc 4, and the connection hole 10 inside the contact disc 5 needs to correspond to the second through hole 9 of the second accumulation disc 4. Use bolts 11 to penetrate all the hole positions, and threadedly connect nuts 15 at one end of the bolts 11 to ensure that all components are tightly connected into a stable whole. Then, screw the upper dust cover 13 and the lower dust cover 17 into the first thread groove 12 and the second thread groove 16 respectively to prevent soil from entering between the bolts 11 and the nuts 15 during the working process. Use the lifting frame 2 to lift the assembled anti - adsorption combined dynamic compaction hammer to a specified height and release the dynamic compaction hammer to make it fall freely. The contact disc 5 first contacts the soil layer. Since the surface of the contact disc 5 is provided with a cross - groove 6, and the diameters of the first accumulation disc 3 and the contact disc 5 are smaller than those of the mounting disc 1 and the second accumulation disc 4, an annular groove will be formed on the surface of the dynamic compaction hammer after installation. The cooperation between the annular groove and the cross - groove 6 reduces the contact area between the dynamic compaction hammer and the soil layer, thereby reducing the adsorption force. At the same time, the design of the cross - groove 6 allows air to flow on the surface of the contact disc 5, further preventing the bottom soil layer from adsorbing the dynamic compaction hammer, and can efficiently and stably complete the foundation compaction work, while reducing the difficulty of lifting the hammer and improving the construction efficiency.
[0038] It should be noted that, in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.
[0039] Although the embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. An anti-adsorption combined tamping hammer, comprising a mounting plate (1), a first accumulating plate (3), a second accumulating plate (4), and a contact plate (5), characterized in that: The upper end of the mounting plate (1) is fixedly connected to a hanging frame (2); a cross groove (6) is provided on the surface of the contact plate (5); four mounting holes (7) are provided in a circular array inside the mounting plate (1); bolts (11) are slidably connected inside the mounting holes (7); the mounting plate (1) and the second accumulating plate (4) have the same diameter; the first accumulating plate (3) and the contact plate (5) have the same diameter; the mounting plate (1), the first accumulating plate (3) and the second accumulating plate (4), and the contact plate (5) are installed in the following order: the mounting plate (1) is on the top, the first accumulating plate (3) is below the mounting plate (1), the second accumulating plate (4) is below the first accumulating plate (3), and the contact plate (5) is below the second accumulating plate (4).
2. The anti-adsorption combined tamping hammer according to claim 1, characterized in that: The first accumulating disk (3) is provided with four first through holes (8) distributed in a circumferential array and corresponding to the mounting holes (7); the diameter of the first through holes (8) is the same as the diameter of the mounting holes (7).
3. The anti-adsorption combined tamping hammer according to claim 2, characterized in that: The second accumulating disk (4) is provided with four second through holes (9) distributed in a circumferential array and corresponding to the first through holes (8); the diameter of the second through holes (9) is the same as the diameter of the first through holes (8).
4. The anti-adsorption combined tamping hammer according to claim 3, characterized in that: The contact plate (5) is provided with four connection holes (10) distributed in a circumferential array and corresponding to the second through holes (9); the diameter of the connection holes (10) is the same as the diameter of the second through holes (9).
5. The anti-adsorption combined tamping hammer according to claim 4, characterized in that: One end of the bolt (11) passes through the mounting hole (7), the first through hole (8), the second through hole (9), and the connecting hole (10), and is threadedly connected to a nut (15).
6. The anti-adsorption combined tamping hammer according to claim 1, characterized in that: The surface of the mounting plate (1) is provided with first thread grooves (12) at positions corresponding to the four mounting holes (7), an upper dust cover (13) is threadedly connected inside the first thread groove (12), and an upper dust cover slot (14) is provided on the surface of the upper dust cover (13).
7. The anti-adsorption combined tamping hammer according to claim 4, characterized in that: The surface of the contact plate (5) is provided with a second thread groove (16) at positions corresponding to the four connection holes (10), the second thread groove (16) is internally threadedly connected to a lower dust cover (17), and the surface of the lower dust cover (17) is provided with a lower dust cover slot (18).
8. The anti-adsorption combined tamping hammer according to claim 1, characterized in that: The mounting plate (1), the first accumulating plate (3), the second accumulating plate (4), and the contact plate (5) are all made of stainless steel. The mounting plate (1) and the second accumulating plate (4) have the same diameter. The first accumulating plate (3) and the contact plate (5) have the same diameter. The diameters of the first accumulating plate (3) and the contact plate (5) are smaller than the diameters of the mounting plate (1) and the second accumulating plate (4).