CN214993726U - Rammer capable of changing ramming area - Google Patents
Rammer capable of changing ramming area Download PDFInfo
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- CN214993726U CN214993726U CN202120816792.5U CN202120816792U CN214993726U CN 214993726 U CN214993726 U CN 214993726U CN 202120816792 U CN202120816792 U CN 202120816792U CN 214993726 U CN214993726 U CN 214993726U
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Abstract
The utility model provides a rammer which can change the ramming area; the rammer includes rammer body and hammer sleeve, the hammer sleeve includes that circular sleeve and area that cup joints with the rammer body are greater than circular telescopic tamping bottom plate, is equipped with the exhaust hole the same with the rammer body on the tamping bottom plate to be equipped with multiunit assorted bolted connection hole on rammer body and hammer sleeve, the hammer sleeve is established in the lower part of rammer body through circular sleeve cover to through a plurality of bolt fixed connection, and the exhaust hole on the tamping bottom plate and the rammer body corresponds completely. The utility model relates to a rationally, simple structure, the preparation is also relatively easier, and the problem that can be fine solution rammer static ground pressure unsatisfied requirement or need change hammer ground static contact pressure in the dynamic compaction construction, the hammer case can cyclic reuse moreover, has the effect that construction convenience, economy saved.
Description
Technical Field
The patent of the utility model relates to a dynamic compaction foundation treatment construction field, concretely relates to can change rammer of tamping area, this rammer can change rammer static grounding pressure at the dynamic compaction in-process through the bottom surface area that changes its hammer block to influence that different energy dispersion was handled the foundation soil when satisfying the dynamic compaction.
Background
The dynamic compaction method is one of the main methods for foundation treatment and construction, and is characterized in that a lifting device is utilized to lift 10-40 tons of heavy hammers to a height of 10-40 meters so as to enable the heavy hammers to fall freely, and a soil layer is compacted under the action of powerful tamping energy and shock waves. The dynamic compaction method has the characteristics of simple and quick construction, low construction cost and good reinforcement effect, is widely used for reinforcement treatment of sandy soil, gravel soil, mountain skin soil, fly ash, miscellaneous filling soil, backfill soil and the like, and is widely applied to projects such as industrial and civil buildings, warehouses, storage yards, docks, airports, roads and bridges, artificial islands, oil storage tanks and the like.
At present, the diameter and the weight of the rammer used in dynamic compaction construction have no unified standard, and different dynamic compaction equipment manufacturers produce rammers with different sizes and weights. The static grounding pressure of the rammer is subjected to range requirements in relevant countries and industry specifications related to dynamic compaction foundation treatment, the diameter and the quality of the rammer need to be checked before dynamic compaction construction, and the rammer is not used when the requirements are not met. On the other hand, different hammer bottom areas have important influence on the dispersion and the influence depth of the impact energy of the rammer, which means that variables such as dynamic compaction energy, hammer bottom area and the like need to be controlled in a technical trial ramming stage, an optimal combination scheme is fed back through a foundation treatment test result after the trial ramming construction is finished, and a dynamic compaction foundation treatment construction scheme is provided according to the combination scheme design unit. At present, a single-mass rammer in dynamic compaction construction has a single rammer diameter, the rammer masses and diameters of different manufacturers are different, different rammer diameters under the same rammer mass or different rammer masses under the same rammer diameter cannot be controlled, and trial compaction and dynamic compaction construction needs to be carried out by customizing a plurality of rammers with different bottom areas to achieve the purpose, so that the rammers with different specifications need to be prepared, and the dynamic compaction is more wasteful and more troublesome.
Disclosure of Invention
The utility model discloses to prior art's not enough, provide a can change rammer of ramming area, this rammer changes the rammer bottom area through increasing the hammer case to change rammer static earth pressure and handle the requirement of relevant standard to rammer static earth pressure in the construction in order to satisfy the dynamic compaction foundation, and need control hammer bottom area variable to provide a convenient solution for the manufacturability trial compaction stage.
In order to realize the purpose, the utility model provides a rammer which can change the ramming area; the rammer includes rammer body and hammer sleeve, the hammer sleeve includes that circular sleeve and area that cup joints with the rammer body are greater than circular telescopic tamping bottom plate, is equipped with the exhaust hole the same with the rammer body on the tamping bottom plate to be equipped with multiunit assorted bolted connection hole on rammer body and hammer sleeve, the hammer sleeve is established in the lower part of rammer body through circular sleeve cover to through a plurality of bolt fixed connection, and the exhaust hole on the tamping bottom plate and the rammer body corresponds completely.
The utility model discloses better technical scheme: the bottom surface of the cavity of the circular sleeve is higher than the top surface of the tamping bottom plate, a bolt mounting bottom plate with the diameter the same as the outer diameter of the circular sleeve is formed between the bottom surface of the cavity of the circular sleeve and the tamping bottom plate, the outer side of the bolt mounting bottom plate is provided with the same number of first concave bolt mounting spaces, a plurality of second concave bolt mounting spaces are arranged in the area of the rammer body higher than the circular sleeve, the first concave bolt mounting spaces and the second concave bolt mounting spaces are in one-to-one correspondence, bolt connecting holes which are mutually communicated and are matched in size are arranged on the bottom surface of each second concave bolt mounting space and the top surface of the first concave bolt mounting space, after the hammer sleeve is sleeved with the rammer body, the bolt connecting holes on the bottom surface of each second concave bolt mounting space are inserted into the bolt connecting holes on the top surface of the corresponding first concave bolt mounting space through bolts, and is fixed and locked by a nut.
The utility model discloses better technical scheme: 6-10 triangular reinforcing plates are arranged between the outer edge of the circular sleeve and the area of the tamping bottom plate protruding out of the circular sleeve, and the 6-10 triangular reinforcing plates are distributed in an annular equidistant mode.
The utility model discloses better technical scheme: the hammer sleeve is made of a steel plate, and the exhaust hole of the hammer sleeve is arranged in the center of the tamping bottom plate.
The utility model discloses better technical scheme: the diameter of the circular sleeve is larger than the diameter of the rammer body by 2-5 mm.
The utility model discloses better technical scheme: the number of the bolts is four, and long bolts or screws are adopted; the hammer sleeve is provided with four first concave bolt installation spaces and four second concave bolt installation spaces, the first concave bolt installation spaces are arranged on the hammer sleeve, the second concave bolt installation spaces are arranged on the rammer body, the first concave bolt installation spaces and the second concave bolt installation spaces are evenly distributed in a circular mode in the center of the rammer body, and the height of each second concave bolt installation space is larger than that of each first concave bolt installation space.
The utility model discloses to the requirement of different rammer static grounding pressure in can be swiftly convenient satisfying dynamic compaction ground processing, through the hammer cover of prefabricated different diameters, field assembly hammer cover and rammer can used repeatedly, change the hammer cover in a flexible way, greatly reduced need through the customization or change not unidimensional rammer be the cost of way.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a top view of the present invention;
fig. 3 is a longitudinal sectional view of the present invention;
FIG. 4 is a schematic view of the hammer case structure of the present invention;
FIG. 5 is a longitudinal cross-sectional view of the hammer sleeve.
In the figure: 1-rammer body, 100-second indent formula bolt installation space, 2-hammer bushing, 200-circular sleeve, 201-solid bottom plate, 203-triangle reinforcing plate, 204-bolt installation bottom plate, 205-first indent formula bolt installation space, 3-exhaust hole, 4-bolted connection hole, 5-bolt.
Detailed Description
The present invention will be further explained with reference to the drawings and examples. Fig. 1 to 5 are drawings of the embodiment, which are drawn in a simplified manner and are only used for clearly and concisely illustrating the purpose of the embodiment of the present invention. The following detailed description of the embodiments of the present invention is presented in the drawings and is not intended to limit the scope of the invention as claimed. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "inner", "outer", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, or orientations or positional relationships that are conventionally placed when the products of the present invention are used, or orientations or positional relationships that are conventionally understood by those skilled in the art, and are merely for convenience of description of the present invention and simplifying the description, but do not indicate or imply that the device or element that is referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
The embodiment provides a rammer capable of changing the tamping area, as shown in fig. 1 to 3, and comprises a rammer body 1 and a hammer sleeve 2. As shown in fig. 4 and 5, the hammer sleeve 2 comprises a circular sleeve 200 sleeved with the rammer body 1 and a ramming bottom plate 201 with a larger area than the circular sleeve 200, the hammer sleeve 2 is made of a steel plate, and the central position of the ramming bottom plate 201 is provided with an exhaust hole 3 which is the same as the rammer body 1, so that air can be timely exhausted when the whole ramming sleeve of the rammer enters a soil layer with a certain depth under the ground, and the generation of suction hammers is reduced; the diameter of the tamping bottom plate 201 is larger than that of the rammer body 1, so that the gravity of the rammer is dispersed, and the static contact pressure of the rammer and the ground is reduced; be equipped with 8 triangle reinforcing plates 203 between circular sleeve 200 outer fringe and the circular telescopic region of tamping bottom plate 201 protrusion, and 8 triangle reinforcing plates 203 are annular equidistance and distribute for the transmission disperses the impact pressure of hammer tamping bottom plate 201 edge, increases hammer sleeve 2's life, and can prevent the atress deformation of tamping bottom plate 201 outer fringe. The diameter of the circular sleeve 200 is larger than the diameter of the rammer body 1 by 2-5 mm, the diameter of the rammer space embedded in the upper portion of the hammer sleeve is slightly larger than the diameter of the rammer, the rammer body 1 and the hammer sleeve 2 are convenient to fix and align when moving, and therefore the circular sleeve is fast connected and fixed. The bottom surface of the cavity of the circular sleeve 200 is higher than the top surface of the tamping bottom plate 201, a bolt mounting bottom plate 204 with the same diameter as the outer diameter of the circular sleeve 200 is formed between the bottom surface of the cavity of the circular sleeve 200 and the tamping bottom plate 201, and four first concave bolt mounting spaces 205 are arranged on the outer side of the bolt mounting bottom plate 204. Circular sleeve 200 is integral with bolt mounting base plate 204 and is welded to tamper base plate 201.
The embodiment provides a rammer capable of changing the tamping area, as shown in fig. 1 to 3, the hammer sleeve 2 is sleeved on the lower part of the rammer body 1 through a circular sleeve 200, and the vent holes on the tamping bottom plate 201 completely correspond to the vent holes on the rammer body 1, so that the air passing through the rammer 1 after ramming is smooth is ensured. Four second concave bolt installation spaces 100 are arranged in an area, higher than the circular sleeve 200, of the rammer body 1, the four second concave bolt installation spaces 100 are distributed circularly and uniformly in the center position of the rammer body 1, the four first concave bolt installation spaces 205 correspond to the four second concave bolt installation spaces 100 one by one, bolt connection holes 4 which are mutually communicated and matched in size are arranged on the bottom surface of each second concave bolt installation space 100 and the top surface of the first concave bolt installation space 205, and the height of each second concave bolt installation space 100 is larger than that of the corresponding first concave bolt installation space 205. After the hammer sleeve 2 is sleeved with the rammer body 1, the bolt 5 is inserted into the bolt connecting hole 4 on the top surface of the corresponding first concave bolt mounting space 205 from the bolt connecting hole 4 on the bottom surface of each second concave bolt mounting space 100, and is fixed and locked by a nut. The bolt 5 is a long bolt or a screw rod;
the utility model can select the hammer sleeve with the proper size of the tamping bottom plate 201 to work according to the requirement, before the dynamic compaction construction, the hammer sleeve 2 is placed on a flat ground, the rammer body 1 is vertically lifted, after the rammer bolt space of the second concave bolt installation space 100 on the rammer body 1 is aligned with the first concave bolt installation space 205 on the hammer sleeve 2 (at the moment, the rammer exhaust hole is aligned with the hammer sleeve exhaust hole 3), the lower part of the rammer body 1 is placed in the circular sleeve 200 of the hammer sleeve 2, then, a bolt 5 is inserted into each second female bolt mounting space 100 into the first female bolt mounting space 205 of the hammer case 2, and is fixedly fastened by a nut, the rammer body 1 and the hammer sleeve 2 are rigidly connected through the four bolts 5, and the whole body formed by the rammer and the hammer sleeve is used for dynamic compaction equipment, so that the purpose of device design can be achieved.
The above description is only one embodiment of the present invention, and the description is specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (6)
1. The utility model provides a can change rammer of tamping area which characterized in that: the rammer includes rammer body (1) and hammer sleeve (2), hammer sleeve (2) include circular sleeve (200) and area that cup joint with rammer body (1) are greater than tamping bottom plate (201) of circular sleeve (200), are equipped with exhaust hole (3) the same with rammer body (1) on tamping bottom plate (201) to be equipped with multiunit assorted bolted connection hole (4) on rammer body (1) and hammer sleeve (2), hammer sleeve (2) are established in the lower part of rammer body (1) through circular sleeve (200) cover, and through a plurality of bolts (5) fixed connection, and exhaust hole on tamping bottom plate (201) corresponds completely with the exhaust hole on rammer body (1).
2. The rammer of claim 1, wherein: the cavity bottom surface of the circular sleeve (200) is higher than the top surface of the tamping bottom plate (201), bolt mounting bottom plates (204) with the same diameter as the outer diameter of the circular sleeve (200) are formed between the cavity bottom surface of the circular sleeve (200) and the tamping bottom plate (201), the outer sides of the bolt mounting bottom plates (204) are provided with the same number of first concave bolt mounting spaces (205), the area of the rammer body (1) higher than the circular sleeve (200) is provided with a plurality of second concave bolt mounting spaces (100), the first concave bolt mounting spaces (205) correspond to the second concave bolt mounting spaces (100) one by one, the bottom surface of each second concave bolt mounting space (100) and the top surface of the first concave bolt mounting space (205) are provided with bolt connecting holes (4) which are communicated with each other and matched in size, and after the hammer sleeve (2) is sleeved with the rammer body (1), the bolt (5) is inserted into the bolt connecting hole (4) on the top surface of the corresponding first concave bolt mounting space (205) from the bolt connecting hole (4) on the bottom surface of each second concave bolt mounting space (100) and is fixed and locked by a nut.
3. A rammer of the type defined in claim 1 or claim 2 wherein: 6-10 triangular reinforcing plates (203) are arranged between the outer edge of the circular sleeve (200) and the area of the tamping bottom plate (201) protruding out of the circular sleeve, and the 6-10 triangular reinforcing plates (203) are distributed in an annular and equidistant mode.
4. A rammer of the type defined in claim 1 or claim 2 wherein: the hammer sleeve (2) is made of a steel plate, and the exhaust hole (3) is formed in the center of the tamping bottom plate (201).
5. A rammer of the type defined in claim 1 or claim 2 wherein: the diameter of the circular sleeve (200) is 2-5 mm larger than that of the rammer body (1).
6. The rammer of claim 2, wherein: four bolts (5) are arranged, and long bolts or screws are adopted; the hammer sleeve (2) is provided with four first concave bolt mounting spaces (205) and four second concave bolt mounting spaces (100) on the rammer body (1) respectively, the first concave bolt mounting spaces and the second concave bolt mounting spaces are distributed uniformly in a circular mode at the center of the rammer body (1), and the height of each second concave bolt mounting space (100) is larger than that of each first concave bolt mounting space (205).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120816792.5U CN214993726U (en) | 2021-04-21 | 2021-04-21 | Rammer capable of changing ramming area |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120816792.5U CN214993726U (en) | 2021-04-21 | 2021-04-21 | Rammer capable of changing ramming area |
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| Publication Number | Publication Date |
|---|---|
| CN214993726U true CN214993726U (en) | 2021-12-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120816792.5U Active CN214993726U (en) | 2021-04-21 | 2021-04-21 | Rammer capable of changing ramming area |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114753343A (en) * | 2022-06-16 | 2022-07-15 | 秦皇岛海三建设工程集团股份有限公司 | Independent foundation straining beam grid house center backfill soil tamping device |
-
2021
- 2021-04-21 CN CN202120816792.5U patent/CN214993726U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114753343A (en) * | 2022-06-16 | 2022-07-15 | 秦皇岛海三建设工程集团股份有限公司 | Independent foundation straining beam grid house center backfill soil tamping device |
| CN114753343B (en) * | 2022-06-16 | 2022-09-02 | 秦皇岛海三建设工程集团股份有限公司 | Independent foundation straining beam grid house center backfill soil tamping device |
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