CN114808914B - Special-shaped guide combined hammer for dynamic compaction - Google Patents
Special-shaped guide combined hammer for dynamic compaction Download PDFInfo
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- CN114808914B CN114808914B CN202210379895.9A CN202210379895A CN114808914B CN 114808914 B CN114808914 B CN 114808914B CN 202210379895 A CN202210379895 A CN 202210379895A CN 114808914 B CN114808914 B CN 114808914B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/02—Improving by compacting
- E02D3/046—Improving by compacting by tamping or vibrating, e.g. with auxiliary watering of the soil
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Abstract
The invention discloses a special-shaped guide combined hammer for dynamic compaction, which comprises a basic rammer and a guide rammer, wherein the basic rammer is in a convex shape, the bottom of the basic rammer is a cylindrical hammer body, a vertically extending hammer neck is integrally arranged in the middle of the top end of the hammer body, a plurality of vertically through exhaust holes are formed in the hammer body outside the hammer neck according to an annular array, the hammer neck is cylindrical, the axis of the hammer neck is collinear with the axis of the hammer body, a mushroom head hoisting screw rod which is coaxial with the hammer neck is in threaded connection with the center of the top of the hammer neck, the bottom end of the mushroom head hoisting screw rod penetrates through the hammer neck and extends to a certain depth in the hammer body, the guide rammer is cylindrical, the top end of the guide rammer is fixedly connected to the center of the bottom end of the basic rammer body, the axis of the guide hammer neck is collinear with the axis of the hammer body, and the size of the cross section of the guide combined hammer is smaller than that of the hammer body and larger than that of the hammer neck. The invention can greatly increase the replacement depth, has accurate positioning, is not easy to cause the condition that the hammer body of the construction hammer absorbs the hammer and tilts the hammer, and achieves the purposes of improving the quality and increasing the efficiency.
Description
Technical Field
The invention relates to the field of dynamic compaction construction equipment, in particular to a special-shaped guide combined hammer for dynamic compaction.
Background
The dynamic compaction replacement foundation treatment construction method has the advantages of high treatment speed, low manufacturing cost and wide influence range, but the dynamic compaction construction is also insufficient, for example, when the foundation soil belongs to high-sensitivity silty clay and the water content is high, the depth of a dynamic compaction replacement pier body of the conventional rammer cannot be ensured. The traditional rammer has large bottom area and small bottom area (mainly in a conical shape or a circular truncated cone shape), when the rammer is large in bottom area, under the condition that the weights of the rammers are the same, the larger the bottom area of the rammer is, the smaller the ramming force applied to the foundation in unit area is, the harder the material of a displaced pier body is to be driven into the foundation, the displacement depth of the pier body is insufficient, when the rammer is small in bottom area, the weight of the hammer is not changed, the height of the hammer body can be correspondingly increased, the drop distance is reduced, and when the bottom area is too small, hole collapse is easily caused, and the dynamic compaction effect is not ideal.
Disclosure of Invention
The invention aims to provide a special-shaped guide combined hammer for dynamic compaction, which aims to solve the technical problems in the background technology.
In order to achieve the technical purpose, the invention adopts the following technical scheme:
the utility model provides a special-shaped guide combination hammer for dynamic compaction, includes basic ram and guide ram, basic ram is the type of protruding, and its bottom is cylindric hammer block, and its hammer block top middle part an organic whole is provided with the hammer neck of vertical extension, and sets up the vertical exhaust hole that link up of a plurality of according to annular array on the hammer block in its hammer neck outside, the hammer neck is cylindricly, and its axle center and hammer block axle center collineation, and hammer neck top central point puts threaded connection has the mushroom head hoisting screw rod rather than coaxial setting, and the bottom of mushroom head hoisting screw rod runs through the hammer neck and extends to the internal certain degree of depth department of hammer, the guide ram is cylindricly, and its top fixed connection is in the bottom central point of basic ram hammer block, and its axle center and hammer block axle center collineation, and its cross sectional dimension is less than the cross sectional dimension of hammer block and is greater than the cross sectional dimension of hammer neck, and its cross sectional radius is less than the shortest distance between exhaust hole and the basic ram axle center.
Preferably, for the convenience according to actual demand increase and decrease rammer weight, the cover is equipped with the reinforcement top cap that increases weight on the hammer neck of basis rammer hammer body top, the reinforcement top cap that increases weight includes integrative two parts that link to each other, and its top bottom two parts are round platform form and cylindric respectively, and the axle center department of its top bottom two parts link up and offered and hammer neck size assorted cylindric through-hole, and the cylindrical external diameter of its bottom and the size phase-match of hammer block position cylinder, and the reinforcement top cap that increases weight is fixed continuous with the hammer body through the connecting bolt that a plurality of laid according to annular array, and the exhaust hole has been seted up to correspondence on its body, and the exhaust hole axial alignment of seting up on the exhaust hole of seting up on its body and the hammer body.
Preferably, for the convenience according to actual demand increase and decrease rammer weight, the cover is equipped with a plurality of weight increasing hammer leaf on the hammer neck between weight increasing reinforcement top cap and the hammer block, weight increasing hammer leaf is the ring column form, and its internal and external diameter respectively with the hammer neck and the size phase-match of hammer block position cylinder, weight increasing hammer leaf and weight increasing reinforcement top cap stack in proper order on the hammer block to connecting bolt and the hammer block that lay according to annular array through a plurality of are fixed continuous, and the exhaust hole has been seted up to correspondence on the two bodies, and the exhaust hole that sets up on the two bodies aligns with the exhaust hole axial that sets up on the hammer block.
Preferably, in order to prolong the service life of the hammer body and avoid the problem of inaccurate positioning of the hammer body caused by uneven wear, the outer annular surface of the weight increasing piece, the exposed parts of the outer annular surface and the bottom surface of the basic rammer and the outer annular surface and the bottom surface of the guiding rammer are all fixedly provided with a wear-resistant reinforcing layer, and the weight increasing reinforcing top cover and the wear-resistant reinforcing layer are made of the same material.
Preferably, in order to improve the integrity of the weight increasing and reinforcing top cover and the foundation rammer, a hoisting hoop is sleeved on a hammer neck above the weight increasing and reinforcing top cover, the hoisting hoop is fixedly connected with a mushroom head hoisting screw and the hammer neck through a plurality of socket bolts, the bottom end of the hoisting hoop abuts against the top surface of the weight increasing and reinforcing top cover and compresses the weight increasing and reinforcing top cover on a hammer body of the foundation rammer, and the socket bolts vertically penetrate through the hoisting hoop, the hammer neck of the foundation rammer and the mushroom head hoisting screw corresponding to the axle center of the hoisting hoop and fixedly connect the hoisting hoop, the hammer neck of the foundation rammer and the mushroom head hoisting screw.
Preferably, in order to improve the connection firmness degree of the foundation rammer and the guide rammer, a plurality of reinforcing support plates are fixedly distributed at the connection position of the guide rammer and the foundation rammer according to an annular array, each reinforcing support plate is a right-angle triangular plate made of wear-resistant manganese steel materials, and the plate surfaces corresponding to two right-angle sides of each reinforcing support plate are respectively welded and fixed with the bottom surface of the hammer body of the foundation rammer and the outer annular surface of the guide rammer.
Preferably, for the structural strength who improves hoist and mount cuff, hoist and mount cuff includes the reinforcement sleeve pipe of hugging closely on the hammer neck outer wall, reinforcement sleeve pipe top both ends welded fastening respectively have a reinforcement steel ring, and according to annular array welded fastening have a plurality of reinforcing bars on the reinforcement sleeve pipe outer wall.
Preferably, in order to facilitate the mounting and dismounting of the weight-increasing reinforcing top cover, a plurality of lifting hooks are welded and fixed on the top of the weight-increasing reinforcing top cover according to an annular array.
Preferably, in order to facilitate the penetration of the weight increasing hammer sheet, the weight increasing reinforcing top cover and the hoisting hoop, the top of the hammer neck of the foundation hammer is cut into a circular truncated cone shape.
Preferably, the foundation rammer, the guide rammer and the weight increasing hammer piece are all made of cast iron materials, and the weight increasing reinforcing top cover and the wear-resisting reinforcing layer are all made of manganese steel materials.
Compared with the prior art, the invention has the following beneficial effects:
1. the special-shaped guiding combined hammer is formed by fixedly connecting the large-diameter basic rammer and the small-diameter guiding rammer, the small-diameter guiding rammer at the lower part of the rammer directly jumps the larger bottom area of the basic rammer into a smaller bottom area under the condition of no slope transition, so that the static pressure value is greatly increased, the force application direction is more concentrated, the conversion loss in the horizontal direction is avoided, the replacement depth can be greatly increased under the same weight of a hammer body, the construction guiding effect of the guiding rammer is very obvious, the construction positioning is accurate, the repeated positioning is not needed, the construction time is saved, the small-diameter guiding rammer is less in bottom area, the conditions that the hammer body of the construction hammer absorbs the hammer and is inclined are not easy to cause, the construction efficiency is greatly increased, the construction time is saved, the construction environment is improved, and the construction period is shortened;
2. the rammer can adjust the number of the weight-increasing hammer pieces according to specific construction requirements, and is additionally provided with the weight-increasing reinforcing top cover, so that the hammer weight conversion is realized, the integrity of the combined hammer is ensured by the arrangement of the hammer neck, the hoisting hoop and the connecting bolt, the service cycle and the turnover frequency of the combined hammer are greatly prolonged by the arrangement of the manganese steel wear-resistant reinforcing layer, the construction requirement of high-sensitivity powder clay working conditions with high water content can be better met by dynamic compaction construction, and the construction quality of the dynamic compaction construction is ensured.
Drawings
The above and/or other aspects and advantages of the present invention will become more apparent and more readily appreciated from the detailed description taken in conjunction with the following drawings, which are meant to be illustrative, not limiting of the invention, and in which:
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a schematic top view of the present invention;
FIG. 3 is a schematic bottom view of the present invention;
FIG. 4 is a schematic structural view of the mushroom head lifting screw of the present invention;
FIG. 5 is a schematic elevation view of a lifting ferrule of the present invention;
FIG. 6 is a schematic top view of the lifting collar of the present invention;
FIG. 7 is a schematic structural view of the socket bolt of the present invention;
FIG. 8 is a schematic view of the construction of the connecting bolt of the present invention;
FIG. 9 is a schematic view of the weight gain reinforcing cap of the present invention in elevation;
FIG. 10 is a schematic top view of the weight gain reinforced top cap of the present invention;
FIG. 11 is a schematic front view of the basic rammer of the present invention;
FIG. 12 is a schematic top view of the basic rammer of the present invention.
Reference numerals: 1-mushroom head hoisting screw, 2-hoisting hoop, 3-socket bolt, 4-connecting bolt, 5-weight increasing and reinforcing top cover, 6-weight increasing hammer piece, 7-foundation rammer, 8-guiding rammer, 9-wear-resistant reinforcing layer, 10-reinforcing support plate, 11-vent hole and 12-lifting hook.
Detailed Description
Hereinafter, an embodiment of a special-shaped guide combination hammer for dynamic compaction according to the present invention will be described with reference to the accompanying drawings. The examples described herein are specific embodiments of the present invention, are intended to be illustrative and exemplary in nature, and are not to be construed as limiting the scope of the invention. In addition to the embodiments described herein, those skilled in the art will be able to employ other technical solutions which are obvious based on the disclosure of the claims and the specification of the present application, and these technical solutions include technical solutions which make any obvious replacement or modification for the embodiments described herein.
In the description of the present invention, it should be noted that the terms "top", "bottom", "upper", "lower", "inner", "outer", "vertical", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element 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.
The drawings in the present specification are schematic views to assist in explaining the concept of the present invention, and schematically show the shapes of respective portions and their mutual relationships. It is noted that the drawings are not necessarily to the same scale so as to clearly illustrate the structures of the various elements of the embodiments of the invention. Like reference numerals are used to denote like parts.
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth to illustrate, but are not to be construed to limit the scope of the invention. Preferred embodiments of the present invention are described in further detail below with reference to FIGS. 1-12:
as shown in fig. 1-3, the special-shaped guiding combination hammer for dynamic compaction preferably comprises a basic rammer 7 and a guiding rammer 8, wherein the basic rammer 7 is in a convex shape, the bottom of the basic rammer 7 is a cylindrical hammer body, a vertically extending hammer neck is integrally arranged in the middle of the top end of the hammer body, a plurality of vertically through exhaust holes 11 are formed in the hammer body on the outer side of the hammer neck according to an annular array, the hammer neck is cylindrical, the axis of the hammer neck is collinear with the axis of the hammer body, the top of the hammer neck is cut into a circular truncated cone shape, a mushroom head hoisting screw rod 1 coaxially arranged with the hammer neck is in threaded connection with the center of the top of the hammer neck, the bottom end of the mushroom head hoisting screw rod 1 penetrates through the hammer neck and extends to a certain depth in the hammer body, the guiding rammer 8 is cylindrical, the top end of the reinforcing support plate is fixedly connected to the center position of the bottom end of a hammer body of a basic rammer 7, the axis of the reinforcing support plate is collinear with the axis of the hammer body, the size of the cross section of the reinforcing support plate is smaller than that of the cross section of the hammer body and larger than that of a hammer neck, the radius of the cross section of the reinforcing support plate is smaller than the shortest distance between an exhaust hole 11 and the axis of the basic rammer 7, in order to improve the connection firmness of the basic rammer 7 and a guide rammer 8, a plurality of reinforcing support plates 10 are fixedly distributed at the connecting position of the guide rammer 8 and the basic rammer 7 according to an annular array, each reinforcing support plate 10 is a right-angle triangular plate made of wear-resistant manganese steel materials, and the corresponding plate surfaces of two right-angle sides of each reinforcing support plate are respectively welded and fixed with the bottom surface of the hammer body of the basic rammer 7 and the outer ring surface of the guide rammer 8;
the weight increasing and reinforcing top cover 5 is characterized in that a weight increasing piece 6, a weight increasing and reinforcing top cover 5 and a hoisting hoop 2 are sequentially sleeved on a hammer neck above a hammer body of the foundation rammer 7 from bottom to top, whether the weight increasing piece 6 and the weight increasing and reinforcing top cover 5 are arranged or not and the arrangement number of the weight increasing pieces 6 can be determined according to actual construction requirements, the weight increasing piece 6 is in a circular column shape, the inner diameter and the outer diameter of the weight increasing piece are respectively matched with the size of the circular column at the hammer neck and the hammer body part, the weight increasing and reinforcing top cover 5 comprises two integrally connected parts, the top part and the bottom part of the weight increasing and reinforcing top cover are respectively in a circular table shape and a circular column shape, a circular column-shaped through hole matched with the size of the hammer neck is arranged at the axial center of the top part and the bottom part of the circular column-shaped through hole is arranged at the axial center of the two parts of the top part of the weight increasing piece, the outer diameter of the bottom part of the circular column-shaped through hole is matched with the size of the circular column at the hammer body part of the weight increasing piece, and the weight increasing piece are welded and fixed with a plurality of the hoisting hooks 12 at the top of the top cover 5 according to the circular column-shaped weight increasing piece, the weight increasing hammer sheet 6 and the weight increasing reinforcing top cover 5 are sequentially stacked on the hammer body and fixedly connected with the hammer body through a plurality of connecting bolts 4 distributed according to an annular array, exhaust holes 11 are correspondingly formed in the bodies of the weight increasing hammer sheet 6 and the weight increasing reinforcing top cover 5, the exhaust holes 11 formed in the bodies of the weight increasing hammer sheet and the weight increasing reinforcing top cover are axially aligned with the exhaust holes 11 formed in the hammer body, the hoisting hoop 2 comprises a reinforcing sleeve closely attached to the outer wall of the hammer neck, reinforcing steel rings are respectively welded and fixed to two ends of the top end of the reinforcing sleeve, a plurality of reinforcing steel bars are welded and fixed to the outer wall surface of the reinforcing sleeve according to the annular array, the hoisting hoop 2 is fixedly connected with the mushroom head hoisting screw rod 1 and the hammer neck through a plurality of socket bolts 3, the bottom end of the hoisting hoop supports against the top surface of the reinforcing top cover 5 and tightly presses the weight increasing reinforcing top cover 5 onto the hammer body of the foundation hammer 7, and the socket bolts 3 vertically penetrate through the hoisting hoop 2 corresponding to the axle center position of the hoisting hoop 2, the neck of the foundation rammer 7 and the mushroom head hoisting screw 1 are fixedly connected;
in order to prolong the service life of the combined rammer, the outer ring surface of the weight increasing hammer piece 6, the outer ring surface and bottom surface exposed part of the foundation rammer 7 and the outer ring surface and bottom surface of the guide rammer 8 are respectively and fixedly provided with a wear-resistant reinforcing layer 9, and the weight increasing reinforcing top cover 5 and the wear-resistant reinforcing layer 9 are both made of wear-resistant manganese steel materials.
In the following, the structure and the manufacturing and assembling method of each component of the combined hammer of the present invention are described in detail by taking an embodiment of a certain preferred size as an example, as shown in fig. 4, the mushroom head hoisting screw 1 is made of Q235 steel, or Q345B steel and 45# steel, and is selected appropriately according to the stock of materials, the mushroom head has a diameter of 300mm and a thickness of 150mm, the head is configured as an arc, the screw has a diameter of 147mm and a length of 2000mm, and small holes with a diameter of 35mm are respectively formed at positions 390mm and 560mm away from the mushroom head for the socket bolt 3 to pass through and be fixed, the length of the screw thread is 1300mm, the length of the screw thread can be appropriately lengthened, the screw thread can also be lengthened by 200mm to 300mm, and the flexibility of later construction is ensured, and the screw thread is fixed on the base hammer 7 for hoisting construction of the hammer to bear all the weight of the hammer; as shown in fig. 5-6, the hoisting hoop 2 is made of Q235 steel, and is composed of a reinforcing sleeve, a reinforcing steel ring and a reinforcing steel bar, the reinforcing sleeve is composed of a steel sleeve with a height of 440mm, an inner diameter of 420mm and an outer diameter of 460mm, and two reinforcing steel rings with an inner diameter of 460mm, an outer diameter of 580mm and a thickness of 20mm which are respectively welded on two sides of the sleeve, and 4 reinforcing steel bars are adopted for welding firmly, the reinforcing steel bar is made of manganese steel and made of manganese steel plate leftover materials, the length is 40mm, the width is 20mm, the height is 400mm, and four reinforcing steel rings are welded on the hoisting hoop 2 in total, so as to increase the stability of the hoop, the hoisting hoop 2 is an auxiliary reinforcing member, no processing can be considered, the material can be made of cast iron, and red rust-proof paint is coated outside, if the reinforcing member is not arranged, the socket bolt 3 needs to move downwards, so as to ensure the firm fixation of the weight-increasing reinforcing top cover 5; as shown in fig. 7, the socket bolt 3 is made of Q235 steel, the head of the socket bolt is made of a hexagonal body with a diameter of 70mm and a thickness of 30mm, the screw is a threadless rod with a diameter of 33mm and a length of 500mm, and the end of the socket bolt is provided with a socket small hole, and the socket bolt is used for fixing a mushroom head hoisting screw 1 and a hoisting hoop 2 on a hammer neck of a foundation rammer 7, mainly for connecting a weight increasing and reinforcing top cover 5, a weight increasing hammer sheet 6 and the foundation rammer 7 into a whole, and the end of the socket bolt is fixed by a fine socket wire without moving; as shown in fig. 8, the connecting bolt 4 is made of Q235 steel, the head is made of hexagonal body with diameter of 150mm and thickness of 66mm, the screw diameter is 100mm, the length is 1150mm, the screw thread length is 765mm, and the three connecting bolts 4 fix the weight-increasing reinforcing top cover 5 on the foundation rammer 7, so that all components are tightly combined to play a role of integral firmness; as shown in fig. 9-10, the weight-increasing and reinforcing top cap 5 is made of manganese steel and comprises circular vent holes 11, welding manganese steel easy-to-lift hooks 12, connecting bolt holes and a top cap main body, the manganese steel easy-to-lift hooks 12 are made of manganese steel and are made of manganese steel plate leftover materials, the height is 208mm, the bottom width is 140mm, the thickness is 30mm, four lift hooks are welded on the upper portion of the weight-increasing and reinforcing top cap 5 for lifting, the diameter of each connecting bolt hole is 105mm, the top cap is formed by combining a circular truncated cone with the bottom diameter of 2350mm, the top diameter of 1000mm, the height of 400mm and a cylinder with the diameter of 2350mm and the height of 250mm, the whole body is machined by reducing the cylinders with the height of 650mm and the diameter of 2350mm, welding combination is not needed, the overall stability is improved, the circular vent holes 11 with the diameter of 200mm are punched at a position 787mm away from the top axis, the vent holes 11 are arranged in a regular triangle shape, and the connecting bolt holes with the punched corners with the diameter of 102 mm; as shown in fig. 11-12, the basic rammer 7 is made of iron, and is formed by integrating a cylinder with the diameter of 2150mm and the height of 1150mm and a cylinder with the diameter of 440mm and the height of 1275mm, and is shaped by cutting and processing the cylinder with the diameter of 2150mm and the height of 2425mm, and punching a circular exhaust hole 11 with the diameter of 200mm according to a designed position, wherein the hole depth is penetration, a connecting bolt hole with the diameter of 105mm is punched, and the hole depth is 550mm; the guide rammer 8 is made of iron and is shaped into a cylinder with the diameter of 1100mm and the height of 900mm, the guide rammer 8 is welded at the bottom of the foundation rammer 7 and is reinforced and connected by a welded reinforcing support plate, the reinforcing support plate 10 is made of manganese steel, eight isosceles right-angled triangles with the side length of 200mm and the thickness of 20mm are made of manganese steel plate leftover materials, the foundation rammer 7 is effectively welded and connected with the guide rammer 8, and the reinforcing and stabilizing effects are achieved; the exhaust holes 11 are the exhaust holes 11 which need to be added on all the horizontal hammer body components, the diameter is 200mm, the positions of the three exhaust holes 11 are determined according to design data, the tamping force of the combined hammer is increased, and the hammer suction probability is reduced; in order to prolong the service life of the combined rammer, the outer ring surface of the weight increasing hammer piece 6, the outer ring surface and bottom surface exposed part of the foundation rammer 7 and the outer ring surface and bottom surface of the guide rammer 8 are fixedly provided with a layer of wear-resistant reinforcing layer 9, the material of the wear-resistant reinforcing layer 9 is manganese steel, the wear-resistant reinforcing layer 9 at the outer ring surface is made of a manganese steel plate through cold bending, the wear-resistant reinforcing layer 9 at the bottom surface is made of the manganese steel plate through cutting, the thickness of the wear-resistant reinforcing layer 9 is 100mm, and the wear-resistant reinforcing layer is welded and fixed with a reinforcing member to reduce the wear of the rammer.
During the specific assembly, the method can be carried out according to the following steps:
firstly, drawing a structural processing diagram of the special-shaped structural hammer by referring to the size of a common structural hammer used in dynamic compaction construction, and formulating the size of each component of the structural hammer according to the sizes of all nodes of the components in the processing diagram;
step two, manufacturing the basic rammer 7 according to the processing detailed drawing size of the basic rammer 7, and then welding a wear-resistant reinforcing layer 9 on the peripheral side and the bottom of the basic rammer 7;
step three, manufacturing the weight increasing hammer sheet 6 according to the processing detailed size of the weight increasing hammer sheet 6, and then welding the wear-resistant reinforcing layer 9 on the peripheral side of the weight increasing hammer sheet 6;
step four, manufacturing the weight-increasing reinforcing top cover 5 according to the processing size shown in the figure, welding the lifting hook 12 on the weight-increasing reinforcing top cover 5 according to the positioning size, hoisting the weight-increasing hammer sheets 6 and the weight-increasing reinforcing top cover 5 with proper number to the hammer neck of the foundation rammer 7 completed in the step two, and connecting and reinforcing the weight-increasing reinforcing top cover 5 by the connecting bolt 4;
step five, inserting and fastening a mushroom head hoisting bolt 1, sleeving a hoisting hoop 2 and fixing firmly by using a socket bolt 3;
step six, finishing the processing of the guide rammer 8 according to the size shown in the figure, and then welding a wear-resistant reinforcing layer 9 on the peripheral side and the bottom of the guide rammer;
and step seven, welding the guide rammer 8 to the bottom of the foundation rammer 7 according to the designed positioning size, and welding the reinforcing support plate 10.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
1. The utility model provides a dynamic compaction is with dysmorphism guide combination hammer which characterized in that: comprises a basic rammer (7) and a guide rammer (8), wherein the basic rammer (7) is in a convex shape, the bottom of the basic rammer is a cylindrical hammer body, a vertically extending hammer neck is integrally arranged at the middle part of the top end of the hammer body, a plurality of vertical through exhaust holes (11) are formed in the hammer body outside the hammer neck according to an annular array, the hammer neck is cylindrical, the axis of the hammer neck is collinear with the axis of the hammer body, a mushroom head hoisting screw (1) coaxially arranged with the hammer neck is in threaded connection at the center of the top of the hammer neck, the bottom end of the mushroom head hoisting screw (1) penetrates through the hammer neck and extends to a certain depth in the hammer body, a weight increasing and reinforcing top cover (5) is sleeved on the hammer neck above the hammer body of the basic rammer (7), and the reinforcing top cover (5) comprises two integrally connected parts, the top and bottom parts of the hammer are respectively in a round table shape and a cylindrical shape, the axle center of the top and bottom parts is provided with a cylindrical through hole which is matched with the size of the hammer neck in a penetrating way, the outer diameter of the cylinder at the bottom part of the top and bottom parts is matched with the size of the cylinder at the hammer body part, the weight increasing and reinforcing top cover (5) is fixedly connected with the hammer body through a plurality of connecting bolts (4) which are distributed according to an annular array, a plurality of weight increasing hammer sheets (6) are sleeved on the hammer neck between the weight increasing and reinforcing top cover (5) and the hammer body, the weight increasing hammer sheets (6) are in a round column shape, the inner diameter and the outer diameter of the weight increasing and reinforcing top cover are respectively matched with the sizes of the cylinder at the hammer neck and the hammer body part, the weight increasing hammer sheets (6) and the weight increasing and reinforcing top cover (5) are sequentially stacked on the hammer body and are fixedly connected with the hammer body through a plurality of connecting bolts (4) which are distributed according to an annular array, the pneumatic hammer comprises a main body, a hammer body, a weight increasing and reinforcing top cover (5), a guide ram (8), a guide sleeve (2), a lifting hoop (2), a mushroom head lifting screw (1), a hammer neck, a lifting hoop (2), a plurality of socket bolts (3), a lifting hoop (2), a mushroom head lifting screw (1) and the hammer neck, wherein the vent holes (11) are correspondingly formed in the main body and the vent holes (11) formed in the hammer body are axially aligned, the hammer neck above the weight increasing and reinforcing top cover (5) is sleeved with the lifting hoop (2), the bottom end of the lifting hoop is abutted against the top surface of the weight increasing and reinforcing top cover (5) and is tightly pressed on the hammer body of the base ram (7), the socket bolts (3) vertically penetrate through the lifting hoop (2), the hammer neck of the base ram (7) and the mushroom head lifting screw (1) and are fixedly connected with the hammer body correspondingly to form the axle center, the axle center of the top end of the guide ram (8) is fixedly connected with the hammer body, the axle center of the bottom end of the hammer body, the cross section of the axle center of the hammer body is smaller than the cross section of the hammer body and larger than the cross section of the vent holes (11) between the collineatly of the hammer body and the shortest distance between the vent holes (7) of the hammer body of the base ram body.
2. The special-shaped guide combined hammer for dynamic compaction of claim 1, wherein: the outer ring surface of the weight increasing hammer piece (6), the exposed part of the outer ring surface and the bottom surface of the foundation rammer (7) and the outer ring surface and the bottom surface of the guide rammer (8) are respectively and fixedly provided with a wear-resistant reinforcing layer (9), and the weight increasing reinforcing top cover (5) and the wear-resistant reinforcing layer (9) are made of the same material.
3. The special-shaped guide combined hammer for dynamic compaction of claim 1, wherein: the guide rammer (8) and the basic rammer (7) are connected and fixedly provided with a plurality of reinforcing support plates (10) according to an annular array, each reinforcing support plate (10) is a right-angled triangular plate made of wear-resistant materials, and the surfaces corresponding to two right-angled sides of each reinforcing support plate are welded and fixed with the bottom surface of the hammer body of the basic rammer (7) and the outer annular surface of the guide rammer (8) respectively.
4. The special-shaped guide combined hammer for dynamic compaction of claim 1, wherein: the hoisting hoop (2) comprises a reinforcing sleeve closely attached to the outer wall of the hammer neck, two ends of the top end of the reinforcing sleeve are respectively welded and fixed with a reinforcing steel ring, and a plurality of reinforcing steel bars are welded and fixed on the outer wall surface of the reinforcing sleeve according to an annular array.
5. The special-shaped guide combined hammer for dynamic compaction of claim 1, wherein: and a plurality of lifting hooks (12) are welded and fixed on the top of the weight increasing and reinforcing top cover (5) according to an annular array.
6. The special-shaped guide combined hammer for dynamic compaction of claim 1, wherein: the top of the neck of the basic rammer (7) is cut into a circular truncated cone shape.
7. The special-shaped guide combined hammer for dynamic compaction of claim 2, wherein: the foundation rammer (7), the guide rammer (8) and the weight increasing hammer piece (6) are all made of cast iron materials, and the weight increasing reinforcing top cover (5) and the wear-resisting reinforcing layer (9) are all made of manganese steel materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210379895.9A CN114808914B (en) | 2022-04-12 | 2022-04-12 | Special-shaped guide combined hammer for dynamic compaction |
Applications Claiming Priority (1)
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| CN114808914B true CN114808914B (en) | 2022-11-04 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08260416A (en) * | 1995-03-20 | 1996-10-08 | Honda Motor Co Ltd | Engine for rammer |
| CN202108037U (en) * | 2011-02-17 | 2012-01-11 | 北京环球华邦交通科技发展有限责任公司 | Weight-variable ram for rammer |
| CN204112303U (en) * | 2014-09-26 | 2015-01-21 | 珠海天力重型工程机械有限公司 | A kind of dynamic compaction machinery hangs tripping gear |
| CN207646718U (en) * | 2017-12-18 | 2018-07-24 | 江西基业科技有限公司 | A kind of combination tup for composite foundation |
| CN208933941U (en) * | 2018-09-26 | 2019-06-04 | 中国水利水电第四工程局有限公司 | A kind of dynamic consolidation construction hammer ram convenient for regulating weight |
| CN214883563U (en) * | 2021-06-25 | 2021-11-26 | 陕西建工基础建设集团有限公司 | Dynamic compaction replacement combined hammer |
-
2022
- 2022-04-12 CN CN202210379895.9A patent/CN114808914B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08260416A (en) * | 1995-03-20 | 1996-10-08 | Honda Motor Co Ltd | Engine for rammer |
| CN202108037U (en) * | 2011-02-17 | 2012-01-11 | 北京环球华邦交通科技发展有限责任公司 | Weight-variable ram for rammer |
| CN204112303U (en) * | 2014-09-26 | 2015-01-21 | 珠海天力重型工程机械有限公司 | A kind of dynamic compaction machinery hangs tripping gear |
| CN207646718U (en) * | 2017-12-18 | 2018-07-24 | 江西基业科技有限公司 | A kind of combination tup for composite foundation |
| CN208933941U (en) * | 2018-09-26 | 2019-06-04 | 中国水利水电第四工程局有限公司 | A kind of dynamic consolidation construction hammer ram convenient for regulating weight |
| CN214883563U (en) * | 2021-06-25 | 2021-11-26 | 陕西建工基础建设集团有限公司 | Dynamic compaction replacement combined hammer |
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| CN114808914A (en) | 2022-07-29 |
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