CN113863418A - Large-scale hydraulic breaking hammer - Google Patents
Large-scale hydraulic breaking hammer Download PDFInfo
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- CN113863418A CN113863418A CN202111221402.0A CN202111221402A CN113863418A CN 113863418 A CN113863418 A CN 113863418A CN 202111221402 A CN202111221402 A CN 202111221402A CN 113863418 A CN113863418 A CN 113863418A
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- cylinder body
- drill rod
- pin
- lower cylinder
- large hydraulic
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F5/00—Dredgers or soil-shifting machines for special purposes
- E02F5/30—Auxiliary apparatus, e.g. for thawing, cracking, blowing-up, or other preparatory treatment of the soil
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a large hydraulic breaking hammer, which comprises a cylinder body assembly, a piston and a drill rod, wherein the piston is slidably arranged in the cylinder body assembly, the drill rod is installed at one end of the cylinder body assembly, the cylinder body assembly comprises an upper cylinder body, a middle cylinder body and a lower cylinder body which are sequentially assembled and fixed, one end of the drill rod is inserted into the lower cylinder body, a flat pin for fixing the drill rod is arranged in the lower cylinder body, an inner bushing and an outer bushing are further arranged between the lower cylinder body and the drill rod, the inner side wall and the outer side wall of the inner bushing and the outer bushing are respectively attached to the inner wall of the lower cylinder body and the outer side wall of the drill rod, the drill rod is not in contact with the lower cylinder body, and the diameter of the drill rod is 200 mm. According to the large hydraulic breaking hammer, the steel drill with the diameter of 200mm and the matched cylinder body assembly are adopted, so that a more appropriate breaking hammer can be selected when an excavator is broken, the breaking efficiency is improved, and the production cost is reduced.
Description
Technical Field
The invention relates to the technical field of rock crushing equipment, in particular to a large hydraulic crushing hammer.
Background
The hydraulic breaking hammer is called as breaking hammer or breaker for short, is installed on the part of excavator or loader where bucket or bucket is installed, and is used for breaking stone, rock, etc.
The working principle of the hydraulic breaking hammer is as follows: the hydraulic pump of the excavator and the loader outputs pressure oil as power, and the reciprocating motion of the piston is controlled by the flow distribution valve. During the stroke, high-pressure hydraulic oil is fed into the rear cavity of the cylinder in the breaking hammer, and the piston impacts the drill rod to cut rock under the combined action of compressed nitrogen and the high-pressure oil in the upper cylinder; during return stroke, the front cavity of the middle cylinder is communicated with high-pressure oil to push the piston to move backwards and compress nitrogen in the upper cylinder body, so that a working cycle is completed. The piston is repeatedly stroked and returned to make the drill rod impact and break rock, stone and concrete.
The existing hydraulic breaking hammer is generally used for an excavator with the weight of less than 49 tons or more than 65 tons, the diameter of a steel chisel is correspondingly less than 195mm or more than 210mm, the types selectable by customers are few, and the steel chisel with the weight of less than 195mm often has the defects of insufficient impact force, low efficiency and the like when meeting large stones; the excavator using the drill steel with the diameter of more than 210mm is heavy above 65 tons, and the excavator does not need to use a large breaking hammer during normal work, so that the waste of the breaking efficiency is caused, and the production cost is indirectly increased. Meanwhile, the existing breaking hammer also has the defects of easy breakage of the lower cylinder body, troublesome assembly and disassembly and the like.
Therefore, in combination with the above-mentioned technical problems, there is a need to provide a new technical solution.
Disclosure of Invention
The invention aims to provide a large hydraulic breaking hammer which fills the gap of the existing market, and has higher structural strength of a lower cylinder body and lower use cost.
In order to solve the technical problems, the invention provides a large hydraulic breaking hammer, which adopts the following specific technical scheme:
the utility model provides a large-scale hydraulic breaking hammer, includes cylinder body subassembly, slides and locates the piston in the cylinder body subassembly and install the drill rod in cylinder body subassembly one end, the cylinder body subassembly is including assembling fixed last cylinder body, well cylinder body and lower cylinder body in proper order, the one end of drill rod is inserted down in the cylinder body, be equipped with the flat pin of fixed drill rod in the cylinder body down, still be equipped with neck bush and outer bush between lower cylinder body and the drill rod, the inside and outside both sides wall of neck bush and outer bush is laminated with the inner wall of lower cylinder body, the lateral surface of drill rod respectively, and the drill rod is contactless with lower cylinder body, wherein, the diameter of drill rod is 200 mm.
Preferably, the lower cylinder body is provided with an inner sleeve pin and an outer sleeve pin which penetrate through the side wall of the cylinder body, and the inner sleeve and the outer sleeve are respectively fixed on the inner side wall of the lower cylinder body through the inner sleeve pin and the outer sleeve pin.
Preferably, the drill rod is provided with two key slots perpendicular to the axis of the drill rod, the two key slots are symmetrically arranged along the axis of the drill rod, the number of the flat pins is two, each flat pin is inserted into one key slot, and the length of each key slot is greater than the width of each flat pin.
Preferably, the side wall of the lower cylinder body is further provided with a flat pin fixing pin in a penetrating mode, and the flat pin fixing pin and the flat pin are arranged vertically.
Preferably, the inboard that well cylinder block is close to last cylinder block one end is equipped with the piston ring, the lateral wall of piston ring and the inside wall laminating of well cylinder block, the internal diameter and the piston tip diameter looks adaptation of piston ring, the inside wall of piston ring are equipped with a plurality of seal grooves that are used for placing the sealing washer.
Preferably, a plurality of long bolts penetrating through the upper cylinder body are arranged in the upper cylinder body, and the long bolts penetrate through the upper cylinder body and are inserted into the middle cylinder body to enable the upper cylinder body and the middle cylinder body to be fixedly connected.
Preferably, an arc-shaped groove is formed in one end, close to the middle cylinder body, of the lower cylinder body, a lower nut is arranged in the arc-shaped groove, and the lower cylinder body and the middle cylinder body are fixedly connected through a bolt matched with the lower nut.
Preferably, a nitrogen bin is arranged in the upper cylinder body, and the pressure of nitrogen in the nitrogen bin is 30-33 Mpa.
Preferably, the side wall of the middle cylinder body is provided with a plurality of through holes to form an energy accumulator connecting part and a reversing valve connecting part, the energy accumulator connecting part is connected with an energy accumulator, and the pressure of nitrogen in the energy accumulator is 75-85 Mpa.
The large hydraulic breaking hammer has the following beneficial effects:
(1) according to the large hydraulic breaking hammer, the steel drill with the diameter of 200mm and the matched cylinder body assembly are adopted, so that a more appropriate breaking hammer can be selected when an excavator is broken, the breaking efficiency is improved, and the production cost is reduced;
(2) according to the large hydraulic breaking hammer, the assembling and disassembling structure of the cylinder body component is simplified in a mode of matching various pins, so that the breaking hammer is more convenient to assemble and disassemble, the structural strength of the lower cylinder body is guaranteed, and the service life of the breaking hammer is longer;
additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings needed for the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a front view of a hydraulic demolition hammer;
FIG. 2 is a bottom view of the hydraulic demolition hammer of FIG. 1 (excluding the drill steel);
fig. 3 is a cross-sectional view taken at a-a in fig. 1.
Wherein, 1, an upper cylinder body; 101-nitrogen gas bin; 2-middle cylinder body; 201-accumulator connection; 202-a diverter valve connection; 3-lower cylinder body; 301-inner sleeve pin; 302-outer sleeve pin; 303-flat pin fixing pins; 304-an arcuate slot; 4-steel chisel; 401-keyway; 5-a piston; 6-flat pin; 7-inner lining; 8-an outer liner; 9-a piston ring; 10-long bolt; 11-lower nut.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
Examples
Referring to fig. 1 to 3, a large hydraulic breaking hammer includes a cylinder assembly, a piston 5 slidably disposed in the cylinder assembly, and a drill rod 4 mounted at one end of the cylinder assembly, and is characterized in that: the cylinder body component comprises an upper cylinder body 1, a middle cylinder body 2 and a lower cylinder body 3 which are sequentially assembled and fixed, one end of a steel rod 4 is inserted into the lower cylinder body 3, a flat pin 6 for fixing the steel rod 4 is arranged in the lower cylinder body 3, an inner bushing 7 and an outer bushing 8 are further arranged between the lower cylinder body 3 and the steel rod 4, the inner side wall and the outer side wall of the inner bushing 7 and the outer bushing 8 are respectively attached to the inner wall of the lower cylinder body 3 and the outer side surface of the steel rod 4, the steel rod 4 is not in contact with the lower cylinder body 3, the diameter of the steel rod 4 is 200mm, the cylinder body component is suitable for excavators with the weight of 49 tons and more, and the striking frequency is 110 times/min and 160 times/min.
The lower cylinder 3 is provided with an inner sleeve pin 301 and an outer sleeve pin 302 penetrating through the side wall of the cylinder, and the inner sleeve 7 and the outer sleeve 8 are fixed on the inner side wall of the lower cylinder 3 through the inner sleeve pin 301 and the outer sleeve pin 302 respectively. The inner lining 7 and the outer lining 8 play a role in buffering and limiting between the steel chisel 4 and the lower cylinder body 3, and prevent the steel chisel 4 from being worn with the lower cylinder body 3 to cause the damage of the lower cylinder body 3 during working.
Two key grooves 401 perpendicular to the axis of the steel chisel 4 are formed in the steel chisel 4, the two key grooves 401 are symmetrically arranged along the axis of the steel chisel 4, the number of the flat pins 6 is two, each flat pin 6 is inserted into one key groove 401, and the length of each key groove 401 is larger than the width of each flat pin 6. The side wall of the lower cylinder body 3 is also provided with a flat pin fixing pin 303 in a penetrating manner, and the flat pin fixing pin 303 and the flat pin 6 are vertically arranged. When drill rod 4 receives the impact of piston 5, drill rod 4 can follow cylinder 3 and produce vibration displacement down, and flat pin 6 is inserted and can effectively prevent that drill rod 4 from producing the rotation in keyway 401, and keyway 401 leaves sufficient surplus on the axial direction of drill rod 4 simultaneously, can not produce the interference.
The inboard that well cylinder body 2 is close to 1 one end of last cylinder body is equipped with piston ring 9, and piston ring 9's lateral wall and well cylinder body 2's inside wall laminating, piston ring 9's internal diameter and 5 tip diameter looks adaptations of piston, and piston ring 9's inside wall is equipped with a plurality of seal grooves that are used for placing the sealing washer.
The upper cylinder body 1 is provided with a plurality of long bolts 10 penetrating through the upper cylinder body 1, and the long bolts 10 penetrate through the upper cylinder body 1 and are inserted into the middle cylinder body 2 to connect and fix the upper cylinder body 1 and the middle cylinder body 2.
One end of the lower cylinder body 3 close to the middle cylinder body 2 is provided with an arc-shaped groove 304, a lower nut 11 is arranged in the arc-shaped groove 304, and the lower cylinder body 3 and the middle cylinder body 2 are fixedly connected through a bolt matched with the lower nut 11.
The upper cylinder body 1 is internally provided with a nitrogen bin 101, and the pressure of nitrogen in the nitrogen bin 101 is 30-33 Mpa.
The side wall of the middle cylinder body 2 is provided with a plurality of through holes to form an energy accumulator connecting part 201 and a reversing valve connecting part 202, the energy accumulator connecting part 201 is connected with an energy accumulator, and the pressure of nitrogen in the energy accumulator is 75-85 Mpa.
The working principle of the large hydraulic breaking hammer is as follows: kinetic energy is applied to the cylinder through the energy accumulator and the reversing valve, the piston 5 is pushed to move upwards to compress the nitrogen bin 101, the reversing valve switches directions after the piston is pushed to the highest point, and the piston rod 5 moves downwards to impact the steel drill 4 when hydraulic oil and nitrogen compress the kinetic energy, so that the crushing work is completed. When the steel rod 4 needs to be replaced, the flat pin fixing pin 303 is loosened to take out the flat pin 6, the inner sleeve pin 301 and the outer sleeve pin 302 are taken out, the steel rod 4 can be taken out for replacement, and when the cylinder body assembly needs to be replaced and maintained, the upper cylinder body 1, the middle cylinder body 2 and the lower cylinder body 3 can be completely separated only by loosening the long bolt 10 and the lower nut 11, so that the operation is simple, and the performances of cylinder body sealing and the like cannot be influenced.
The invention has the beneficial effects that: by adopting the drill steel with the diameter of 200mm and the matched cylinder body assembly, a more appropriate breaking hammer can be selected when the excavator is broken, the breaking efficiency is improved, and the production cost is reduced; the assembly and disassembly structure of the cylinder body assembly is simplified by adopting the mode of matching various pins, so that the assembly and disassembly of the breaking hammer are more convenient, the structural strength of the lower cylinder body is ensured, and the service life of the breaking hammer is longer.
While embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and not to be construed as limiting the present invention, and that changes, modifications and variations may be made therein by those of ordinary skill in the art within the scope of the present invention.
Claims (9)
1. The utility model provides a large-scale hydraulic breaking hammer, includes cylinder body subassembly, slides and locates piston (5) in the cylinder body subassembly and install drill rod (4) in cylinder body subassembly one end, its characterized in that: the cylinder body subassembly is including assembling fixed last cylinder body (1), well cylinder body (2) and lower cylinder body (3) in proper order, the one end of drill rod (4) is inserted down in cylinder body (3), be equipped with flat pin (6) of fixed drill rod (4) in lower cylinder body (3), still be equipped with neck bush (7) and outer bush (8) between lower cylinder body (3) and drill rod (4), the interior outside both sides wall of neck bush (7) and outer bush (8) is laminated with the inner wall of lower cylinder body (3), the lateral surface of drill rod (4) respectively, and drill rod (4) and lower cylinder body (3) contactless, wherein, the diameter of drill rod (4) is 200 mm.
2. A large hydraulic demolition hammer according to claim 1, characterized in that: the lower cylinder body (3) is provided with an inner sleeve pin (301) and an outer sleeve pin (302) which penetrate through the side wall of the cylinder body, and the inner sleeve (7) and the outer sleeve (8) are fixed on the inner side wall of the lower cylinder body (3) through the inner sleeve pin (301) and the outer sleeve pin (302) respectively.
3. A large hydraulic demolition hammer according to claim 1, characterized in that: the steel chisel (4) is provided with two key grooves (401) perpendicular to the axis of the steel chisel (4), the two key grooves (401) are symmetrically arranged along the axis of the steel chisel (4), the number of the flat pins (6) is two, each flat pin (6) is respectively inserted into one key groove (401), and the length of each key groove (401) is larger than the width of each flat pin (6).
4. A large hydraulic demolition hammer according to claim 3, characterized in that: the lateral wall of lower cylinder body (3) still runs through and is equipped with cotter pin fixed pin (303), cotter pin fixed pin (303) with cotter pin (6) set up perpendicularly.
5. A large hydraulic demolition hammer according to claim 1, characterized in that: the inboard that well cylinder body (2) is close to last cylinder body (1) one end is equipped with piston ring (9), the lateral wall of piston ring (9) and the inside wall laminating of well cylinder body (2), the internal diameter and piston (5) tip diameter looks adaptation of piston ring (9), the inside wall of piston ring (9) is equipped with a plurality of seal grooves that are used for placing the sealing washer.
6. A large hydraulic demolition hammer according to claim 1, characterized in that: the upper cylinder body (1) is internally provided with a plurality of long bolts (10) penetrating through the upper cylinder body (1), and the long bolts (10) penetrate through the upper cylinder body (1) and are inserted into the middle cylinder body (2) to connect and fix the upper cylinder body (1) and the middle cylinder body (2).
7. A large hydraulic demolition hammer according to claim 5, characterized in that: one end of the lower cylinder body (3) close to the middle cylinder body (2) is provided with an arc-shaped groove (304), a lower nut (11) is arranged in the arc-shaped groove (304), and the lower cylinder body (3) and the middle cylinder body (2) are fixedly connected through a bolt matched with the lower nut (11).
8. A large hydraulic demolition hammer according to claim 1, characterized in that: a nitrogen bin (101) is arranged in the upper cylinder body (1), and the pressure of nitrogen in the nitrogen bin (101) is 30-33 Mpa.
9. A large hydraulic demolition hammer according to claim 1, characterized in that: the side wall of the middle cylinder body (2) is provided with a plurality of through holes to form an energy accumulator connecting part (201) and a reversing valve connecting part (202), the energy accumulator connecting part (201) is connected with an energy accumulator, and the pressure of nitrogen in the energy accumulator is 75-85 Mpa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111221402.0A CN113863418A (en) | 2021-10-20 | 2021-10-20 | Large-scale hydraulic breaking hammer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111221402.0A CN113863418A (en) | 2021-10-20 | 2021-10-20 | Large-scale hydraulic breaking hammer |
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| Publication Number | Publication Date |
|---|---|
| CN113863418A true CN113863418A (en) | 2021-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111221402.0A Pending CN113863418A (en) | 2021-10-20 | 2021-10-20 | Large-scale hydraulic breaking hammer |
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| CN (1) | CN113863418A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203361227U (en) * | 2013-07-22 | 2013-12-25 | 南通欧特建材设备有限公司 | Novel knapping assembly of hydraulic knapper |
| CN204059448U (en) * | 2014-07-25 | 2014-12-31 | 蔡卫民 | A kind of hydraulic crushing hammar drill rod |
| CN207245612U (en) * | 2017-06-09 | 2018-04-17 | 贵州高峰石油机械股份有限公司 | A kind of hydraulic crushing hammar drill rod |
| CN109518754A (en) * | 2018-08-26 | 2019-03-26 | 赵德朝 | A kind of novel hydraulic crushing hammer |
-
2021
- 2021-10-20 CN CN202111221402.0A patent/CN113863418A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203361227U (en) * | 2013-07-22 | 2013-12-25 | 南通欧特建材设备有限公司 | Novel knapping assembly of hydraulic knapper |
| CN204059448U (en) * | 2014-07-25 | 2014-12-31 | 蔡卫民 | A kind of hydraulic crushing hammar drill rod |
| CN207245612U (en) * | 2017-06-09 | 2018-04-17 | 贵州高峰石油机械股份有限公司 | A kind of hydraulic crushing hammar drill rod |
| CN109518754A (en) * | 2018-08-26 | 2019-03-26 | 赵德朝 | A kind of novel hydraulic crushing hammer |
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