CN112065816A - Length-variable full-built-in hydraulic ramming hammer - Google Patents
Length-variable full-built-in hydraulic ramming hammer Download PDFInfo
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- CN112065816A CN112065816A CN202010972230.XA CN202010972230A CN112065816A CN 112065816 A CN112065816 A CN 112065816A CN 202010972230 A CN202010972230 A CN 202010972230A CN 112065816 A CN112065816 A CN 112065816A
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- Prior art keywords
- hammer
- hammer body
- limiting piece
- limiting
- hydraulic
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/24—Other details, e.g. assembly with regulating devices for restricting the stroke
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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
- E02D3/068—Vibrating apparatus operating with systems involving reciprocating masses
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/22—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke
- F15B15/226—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke having elastic elements, e.g. springs, rubber pads
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Fluid Mechanics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Agronomy & Crop Science (AREA)
- Environmental & Geological Engineering (AREA)
- Soil Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
A length-variable full-built-in hydraulic ramming hammer relates to soil-squeezing pore-forming construction equipment and comprises a hammer body and a power assembly, wherein the hammer body comprises an upper hammer body, an upper limiting piece, a middle hammer body, a lower limiting piece and a lower hammer body which are sequentially connected from top to bottom; the power assembly is arranged in the middle hammer body and comprises a hydraulic cylinder, a cylinder barrel of the hydraulic cylinder is fixed between the upper limiting piece and the lower limiting piece, an upper cushion pad is arranged between the upper end of the cylinder barrel and the upper limiting piece, and a lower cushion pad is arranged between the lower end of the cylinder barrel and the lower limiting piece; the piston rod of the hydraulic cylinder is arranged downwards and is connected with the hammer core after extending out of the lower limiting piece. The hammer body is divided into an upper hammer body, a middle hammer body and a lower hammer body, cushion pads are arranged at the upper end and the lower end of the power assembly, the power assembly is arranged in the middle hammer body, and the hammer core reciprocates in the lower hammer body. The middle hammer body is connected with the upper hammer body and the lower hammer body to form a fully-closed hydraulic ramming hammer, so that the aims of reducing vibration and noise caused by overlarge penetration of the hammer bodies and improving the reliability of the power head are fulfilled.
Description
Technical Field
The invention relates to soil-squeezing pore-forming construction equipment, in particular to a structure of a hydraulic ramming hammer.
Background
As shown in figure 2, in the existing hydraulic ramming hammer, a power assembly 1 is arranged in a hammer body hole at the upper part of the ramming hammer, the lower end of the power assembly 1 is connected with a hammer core 4, and when the hammer body of the ramming hammer is penetrated once, the power assembly 1 freely falls down once in a hammer body 3 under the action of inertia. The power assembly is not provided with an upper limit, the free falling height is changed along with the penetration degree, the larger the penetration degree is, the larger the vibration is, and the larger the noise is. In the past, the buffer system 2 is subjected to high-frequency repeated impact vibration of the power assembly 1 to cause the failure of the buffer performance, and the failure rate of the power assembly is high. In addition, considering the arrangement of a hydraulic power pipeline, one end of the power assembly 1 is completely exposed, the other end of the power assembly is arranged in a hammer body hole at the upper part of the ramming hammer, and the length of the hammer body of the hydraulic ramming hammer is limited and cannot meet the requirements of different construction depths.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a length-variable full-built-in hydraulic ramming hammer, which reduces the noise of the ramming hammer and the failure rate of a power assembly.
The purpose of the invention is realized as follows: the length-variable full-built-in hydraulic ramming hammer comprises a hammer body and a power assembly, wherein the hammer body comprises an upper hammer body, an upper limiting piece, a middle hammer body, a lower limiting piece and a lower hammer body which are sequentially connected from top to bottom; the power assembly is arranged in the middle hammer body and comprises a hydraulic cylinder, a cylinder barrel of the hydraulic cylinder is fixed between the upper limiting piece and the lower limiting piece, an upper cushion pad is arranged between the upper end of the cylinder barrel and the upper limiting piece, and a lower cushion pad is arranged between the lower end of the cylinder barrel and the lower limiting piece; and a piston rod of the hydraulic cylinder is arranged downwards and is connected with the hammer core after extending out of the lower limiting piece.
The hammer body is divided into an upper hammer body, a middle hammer body and a lower hammer body. The upper end and the lower end of the power assembly are provided with cushion pads, the power assembly is arranged in the middle hammer body, the upper end of a cylinder barrel of the hydraulic cylinder is limited through an upper limiting piece, and the lower end of the cylinder barrel of the hydraulic cylinder is limited through a lower limiting piece, so that the cylinder barrel is fixed between the upper limiting piece and the lower limiting piece, and the hammer core reciprocates in the lower hammer body. The middle hammer body is connected with the upper hammer body and the lower hammer body to form a fully-closed hydraulic ramming hammer, so that the aims of reducing vibration and noise caused by overlarge penetration of the hammer bodies and improving the reliability of the power head are fulfilled.
The lower end of the upper hammer body is welded with the upper end of the upper limiting piece, and the lower end of the upper limiting piece is detachably connected with the upper end of the middle hammer body through a middle bolt. The bolt connection is convenient to install and disassemble, the requirement of construction depth is met by replacing the upper hammer body with different lengths, and the requirements of different construction depths are met.
The upper limiting piece comprises an upper limiting body, wherein the inner diameter of the upper limiting body is smaller than the outer diameter of a cylinder barrel of a hydraulic cylinder, an upper limiting welding edge is integrally arranged on the periphery of the upper end of the upper limiting body, and the upper limiting welding edge is welded at the lower end of an upper hammer body; an upper limiting bolt mounting edge is integrally arranged on the periphery of the lower end of the upper limiting body, and the middle bolt is connected with the upper limiting bolt mounting edge and the middle hammer body. The convenient welding and the installation bolt, the design is more reasonable.
The lower end of the middle hammer body is welded with the upper end of the lower limiting piece, and the lower end of the lower limiting piece is detachably connected with the upper end of the lower hammer body through the lower bolt, so that the lower limiting piece is convenient to mount, dismount and maintain.
The lower limiting piece comprises a lower limiting body, the inner diameter of the lower limiting body is smaller than the outer diameter of a cylinder barrel of a hydraulic cylinder, a lower limiting welding edge is integrally arranged on the periphery of the upper end of the lower limiting body, and the lower limiting welding edge is welded at the lower end of a middle hammer body; the periphery of the lower end of the lower limiting body is integrally provided with a lower limiting bolt mounting edge, and the lower limiting bolt mounting edge is connected with the lower hammer body through a lower bolt. The convenient welding and the installation bolt, the design is more reasonable.
The upper end of the upper hammer body is detachably connected with the upper end cover through an upper bolt, and an oil pipe of the hydraulic cylinder penetrates through the upper end cover.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of the prior art.
Detailed Description
As shown in figure 1, the length-variable full-built-in hydraulic ramming hammer comprises a hammer body and a power assembly, wherein the hammer body comprises an upper hammer body 3, an upper limiting piece 4, a middle hammer body 7, a lower limiting piece 10 and a lower hammer body 13 which are sequentially connected from top to bottom. The power assembly comprises a hydraulic cylinder 8, and a cylinder barrel 8-1 of the hydraulic cylinder 8 is arranged in the middle hammer body 7.
The upper end of the upper hammer body 3 is detachably connected with the upper end cover 1 through the upper bolt 2, an oil pipe 14 of the hydraulic cylinder 8 penetrates through the upper end cover 1 and then is connected with a hydraulic system, the oil pipe 14 is made of rubber and has certain flexibility, and the hydraulic system is an existing, conventional and mature hydraulic control system.
The upper limiting piece 4 comprises an upper limiting body 4-1, the inner diameter of the upper limiting body 4-1 is smaller than the outer diameter of a cylinder barrel 8-1 of the hydraulic cylinder 8, an upper limiting welding edge 4-2 is integrally arranged on the periphery of the upper end of the upper limiting body 4-1, and the upper limiting welding edge 4-2 is welded at the lower end of the upper hammer body 3. An upper limiting bolt mounting edge 4-3 is integrally arranged on the periphery of the lower end of the upper limiting body 4-1, and the upper limiting bolt mounting edge 4-3 is detachably connected with the upper end of the middle hammer body 7 through a middle bolt 5.
The lower limiting piece 10 comprises a lower limiting body 10-1, the inner diameter of the lower limiting body 10-1 is smaller than the outer diameter of a cylinder barrel 8-1 of the hydraulic cylinder 8, a lower limiting welding edge 10-2 is integrally arranged on the periphery of the upper end of the lower limiting piece body 10-1, and the lower limiting welding edge 10-2 is welded at the lower end of the middle hammer body 7. A lower limiting bolt mounting edge 10-3 is integrally arranged on the periphery of the lower end of the lower limiting body 10-1, and the lower limiting bolt mounting edge 10-3 is detachably connected with the upper end of the lower hammer body 13 through a lower bolt 11.
The upper end of the cylinder barrel 8-1 of the hydraulic cylinder 8 is limited by the upper limiting piece 4, and the lower end of the cylinder barrel 8-1 of the hydraulic cylinder 8 is limited by the lower limiting piece 10, so that the cylinder barrel 8-1 of the hydraulic cylinder 8 is fixed between the upper limiting piece 4 and the lower limiting piece 10. An upper cushion pad 6 is arranged between the upper end of the cylinder barrel 8-1 and the upper limiting body 4-1, a lower cushion pad 9 is arranged between the lower end of the cylinder barrel 8-1 and the lower limiting body 10-1, and a piston rod 8-2 of the hydraulic cylinder 8 is arranged downwards and is connected with a hammer core 12 after extending out of the lower limiting body 10.
The hammer body of the invention comprises an upper hammer body 3, a middle hammer body 7 and a lower hammer body 13, wherein cushion pads are arranged at the upper end and the lower end of a power assembly, the power assembly is limited in the middle hammer body 7 by an upper limiting piece 4 and a lower limiting piece 10, and a hammer core 12 reciprocates in the lower hammer body 13. Because the power assembly is limited in the middle hammer body 7 through the upper and lower buffer cushions, when the ramming hammer body is penetrated, the displacement distance of the power assembly relative to the middle hammer body, which is formed by the free fall of the inertia, is smaller. The vibration and noise of the power assembly are small, and the reliability of the power assembly is improved.
In addition, the upper hammer body 3 with different lengths is replaced by dismounting and mounting the middle bolt 5 to meet the requirement of construction depth, so that the requirements of different construction depths are met.
Claims (6)
1. Changeable full built-in hydraulic ram hammer of length, including hammer block and power assembly, characterized by: the hammer body comprises an upper hammer body, an upper limiting piece, a middle hammer body, a lower limiting piece and a lower hammer body which are sequentially connected from top to bottom; the power assembly is arranged in the middle hammer body and comprises a hydraulic cylinder, a cylinder barrel of the hydraulic cylinder is fixed between the upper limiting piece and the lower limiting piece, an upper cushion pad is arranged between the upper end of the cylinder barrel and the upper limiting piece, and a lower cushion pad is arranged between the lower end of the cylinder barrel and the lower limiting piece; and a piston rod of the hydraulic cylinder is arranged downwards and is connected with the hammer core after extending out of the lower limiting piece.
2. The variable length fully inbuilt hydraulic ram hammer of claim 1, characterized in that: the lower end of the upper hammer body is welded with the upper end of the upper limiting piece, and the lower end of the upper limiting piece is detachably connected with the upper end of the middle hammer body through a middle bolt.
3. The variable length fully inbuilt hydraulic ram hammer of claim 2, characterized in that: the upper limiting piece comprises an upper limiting body, the inner diameter of the upper limiting body is smaller than the outer diameter of a cylinder barrel of the hydraulic cylinder, an upper limiting welding edge is integrally arranged on the periphery of the upper end of the upper limiting body, and the upper limiting welding edge is welded at the lower end of the upper hammer body; an upper limiting bolt mounting edge is integrally arranged on the periphery of the lower end of the upper limiting body, and the middle bolt is connected with the upper limiting bolt mounting edge and the middle hammer body.
4. The variable length fully inbuilt hydraulic ram hammer of claim 1, characterized in that: the lower end of the middle hammer body is welded with the upper end of the lower limiting piece, and the lower end of the lower limiting piece is detachably connected with the upper end of the lower hammer body through a lower bolt.
5. The variable length fully inbuilt hydraulic ram hammer of claim 4, characterized in that: the lower limiting piece comprises a lower limiting body, the inner diameter of the lower limiting body is smaller than the outer diameter of a cylinder barrel of the hydraulic cylinder, a lower limiting welding edge is integrally arranged on the periphery of the upper end of the lower limiting body, and the lower limiting welding edge is welded at the lower end of the middle hammer body; the periphery of the lower end of the lower limiting body is integrally provided with a lower limiting bolt mounting edge, and the lower limiting bolt mounting edge is connected with the lower hammer body through a lower bolt.
6. The variable length fully inbuilt hydraulic ram hammer of claim 1, characterized in that: the upper end of the upper hammer body is detachably connected with the upper end cover through an upper bolt, and an oil pipe of the hydraulic cylinder penetrates through the upper end cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010972230.XA CN112065816A (en) | 2020-09-16 | 2020-09-16 | Length-variable full-built-in hydraulic ramming hammer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010972230.XA CN112065816A (en) | 2020-09-16 | 2020-09-16 | Length-variable full-built-in hydraulic ramming hammer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112065816A true CN112065816A (en) | 2020-12-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010972230.XA Pending CN112065816A (en) | 2020-09-16 | 2020-09-16 | Length-variable full-built-in hydraulic ramming hammer |
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| Country | Link |
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| CN (1) | CN112065816A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115971389A (en) * | 2022-11-11 | 2023-04-18 | 中机锻压江苏股份有限公司 | Novel full-hydraulic follow-up hammer |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AR244398A1 (en) * | 1986-03-21 | 1993-10-29 | Castellano Nelson Antonio | A hydraulic cylinder with adjustable valve lift. |
| CN103215954A (en) * | 2013-03-29 | 2013-07-24 | 郭强 | Reinforcement type sealed cylinder type hydraulic pile hammer |
| CN103306265A (en) * | 2013-07-05 | 2013-09-18 | 徐工集团工程机械股份有限公司 | Anti-shear combined rammer |
| CN106013096A (en) * | 2016-07-02 | 2016-10-12 | 韩少鹏 | Construction method of building foundation |
| CN109736307A (en) * | 2018-12-31 | 2019-05-10 | 东台康鼎工程机械制造有限公司 | A kind of double rod superposing type hydraulic pile hammer |
| CN109898496A (en) * | 2019-04-22 | 2019-06-18 | 中机锻压江苏股份有限公司 | A kind of hydraulic direct hammer ram |
-
2020
- 2020-09-16 CN CN202010972230.XA patent/CN112065816A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AR244398A1 (en) * | 1986-03-21 | 1993-10-29 | Castellano Nelson Antonio | A hydraulic cylinder with adjustable valve lift. |
| CN103215954A (en) * | 2013-03-29 | 2013-07-24 | 郭强 | Reinforcement type sealed cylinder type hydraulic pile hammer |
| CN103306265A (en) * | 2013-07-05 | 2013-09-18 | 徐工集团工程机械股份有限公司 | Anti-shear combined rammer |
| CN106013096A (en) * | 2016-07-02 | 2016-10-12 | 韩少鹏 | Construction method of building foundation |
| CN109736307A (en) * | 2018-12-31 | 2019-05-10 | 东台康鼎工程机械制造有限公司 | A kind of double rod superposing type hydraulic pile hammer |
| CN109898496A (en) * | 2019-04-22 | 2019-06-18 | 中机锻压江苏股份有限公司 | A kind of hydraulic direct hammer ram |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115971389A (en) * | 2022-11-11 | 2023-04-18 | 中机锻压江苏股份有限公司 | Novel full-hydraulic follow-up hammer |
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