CN204877475U - Hydraulic pressure quartering hammer drill rod - Google Patents
Hydraulic pressure quartering hammer drill rod Download PDFInfo
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- CN204877475U CN204877475U CN201520461842.7U CN201520461842U CN204877475U CN 204877475 U CN204877475 U CN 204877475U CN 201520461842 U CN201520461842 U CN 201520461842U CN 204877475 U CN204877475 U CN 204877475U
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Abstract
The utility model discloses a hydraulic pressure quartering hammer drill rod, including the drill rod body, broken body two parts, the drill rod body can be dismantled through the conical surface with the breakage body and be connected. When the breakage body has worn and torn bluntly in the use, only need trade the broken body, just can continue to use. The drill rod body can continue to use to reduce use cost and practice thrift raw and other materials.
Description
Technical field
The utility model relates to a kind of drill steel of hydraulic breaking hammer, relates in particular to a kind of Novel hydraulic crushing hammer drill steel of a kind of engineering machinery used in mining, metallurgy, railway, highway, political affairs gardens, building, boats and ships etc.
Background technology
Hydraulic breaking hammer is called for short " quartering hammer " or " destroyer ", is mounted on excavator, loader, utilizes hydraulic oil that the hydraulic pump of these engineering machinery exports as power, comes broken stone, rock etc. by drill steel.
The operating principle of hydraulic breaking hammer is: with the hydraulic pump pressure oil output of excavator, loader for power, moved back and forth by flat valve control piston.During stroke, in quartering hammer, the back cavity of cylinder enters high pressure liquid force feed, and piston is impacted drill steel by under the acting in conjunction of the compressed nitrogen in upper cylinder half and hydraulic oil, and drill steel impacts rock, is smashed; During backhaul, middle cylinder ante-chamber connects hydraulic oil, moves and the nitrogen in upper cylinder body is compressed, complete a working cycles like this after promoting piston.The stroke that piston goes round and begins again, backhaul, make drill steel constantly impact rock, stone, concrete etc., smashed.
Hydraulic breaking hammer is mainly used in following aspect:
1. mining: cut into a mountain, open a mine, diagrid is broken, second-time breakage.In recent years, the exploitation of outdoor mining industry, China prohibits the use blasting procedure, and the use amount of hydraulic breaking hammer in mine is increased severely.
2. metallurgical: the cleaning of ladle, slag, tear the dissatisfied body of stove open, equipment Foundations are removed.
3. railway: cut into a mountain, tunnel piercing, bridge demolition, roadbed compacting.
4. highway: speedway is repaired, cement pavement is broken, foundation excavation.
5. municipal gardens: concrete disintegrating, water, electricity, gas engineering construction, reconstruction of the old city town.
6. build: Old building is removed, steel concrete is broken.
7. boats and ships: hull is except freshwater mussel, rust cleaning.
8. other: open ice, broken frozen soil, sand mold vibrate.
China's hydraulic breaking hammer market is started in eighties of last century nineties, is later than Japan and Korea S, but development is swift and violent.2010, China's hydraulic breaking hammer market, close to European & American Market, became one of three large hydraulic breaking hammer markets, the whole world.Within 2000, Chinese hydraulic breaking hammer market sales volume scale is only about 1200, and reach 42 to this numeral in 2010,000, increase 35 times, annual compound growth rate reaches 42.69%.Along with the input of domestic city infrastructure construction continues to increase, the exploitation of outdoor mining industry prohibits the use blasting procedure, and the fast development of domestic hydraulic crawler excavator industry, and the demand as the main consumable accessory drill steel of hydraulic breaking hammer is very large.In the outdoor mining activities of China, quartering hammer day work time average was at 20 hours, and the application life of a drill steel, drill steel annual requirement was more than 4,000,000 at 200 hours.
The main failure forms of drill steel: with rock contact end rust, cannot use.When after drill steel blade wear out failure, drill steel has just been scrapped.
As shown in Figure 1, now comprise drill steel body 1 with hydraulic crushing hammar drill rod, front end has drill steel blade B, for rectangular pyramid shape, rear end has piston and hits end face A, as shown in Figure 6, when quartering hammer 3 in the course of the work, the C position indicated in structural representation three is to be greater than the high rigidity quartering hammer backing pin 4 of the frequency hit quartering hammer of 500 times/min, and drill steel has in use occurred Destroy type and scrapped and can not use.
Now by the drawback that hydraulic crushing hammar drill rod exists:
1. structure is monolithic, is being processed with impact sword with rock contact end, and when blade wearing and tearing are over, this drill steel just can not continue use and become waste product.The use cost of this drill steel is high, and the worn and torn half part of rear residue raw footage of blade has just had no value for use, and can only be used as scrap iron process, therefore utilization rate of raw materials is low, and waste is serious.
2. the drill steel length of this structure is longer, and greatly, the low processing cost of production efficiency is high for processing and heat treatment difficulty.Heat treatment is yielding, bending, and percent defective is high.
Utility model content
Problem to be solved in the utility model is the above-mentioned defect in order to overcome traditional hydraulic crushing hammar drill rod, provides a kind of long service life, can save material, hydraulic crushing hammar drill rod that production efficiency is high.
In order to solve the problem, the utility model by the following technical solutions:
A kind of hydraulic crushing hammar drill rod, comprise drill steel body, broken body two parts, drill steel body and broken body are removably connected by the conical surface.
When broken body has has in use worn and torn blunt, only need change broken body, just can continue to use.Drill steel body can continue to use, thus reduces use cost and save material.
Below the further optimization of the utility model to such scheme:
Described drill steel body comprises drill steel body afterbody that one connects, in the middle part of drill steel body and drill steel body head; Broken body comprises in the middle part of the broken body head of one connection, broken body and broken body afterbody;
Drill steel body head and broken body afterbody are held together by the conical surface self-locking of 10 ± 0.5 °.
Further optimization: the front end of described drill steel body head has truncated cone-shaped endoporus, having in broken body afterbody matches with drill steel body head carries out the broken body endoporus of grafting; This broken body endoporus is all coniform hole.Be the spherical of R bottom its hole.
Further optimization: described drill steel body afterbody is tapered frustum cone structure, its section area diminishes from the side in the middle part of drill steel body gradually to away from the side in the middle part of drill steel body.
This design of drill steel body afterbody, when piston strike area is identical, shock stress can spread, and is unlikely to stress and too concentrates and make the piston scope of attack collapse block.
Further optimization: the one end near drill steel body afterbody in the middle part of drill steel body is monosymmetric bluff body structure, be connected by arc transition between its with drill steel body afterbody, the both sides of this bluff body part are connected respectively by chamfered transition with the both sides, front end in the middle part of drill steel body.
This design, transfers to rum point on inclined-plane, makes impact force create decomposition, and the changes of section of this place's structure is mild simultaneously, and intensity is large, solves problem of stress concentration very well, thus solves the destruction of drill steel at this position, improves and reduces use cost application life.
Further optimization: be octahedral frustum of a pyramid shape structure with broken body head in the middle part of broken body.So just make the sharp intensity of blade good, production efficiency is high.When blade wearing and tearing rust, can change a broken body, drill steel body can continue to use, and cost is low.
When drill steel body and broken body are installed, first being loaded according to the load mode of existing drill steel the rear end of drill steel body is arranged on quartering hammer, intert the bluff body locations of structures of in the middle part of drill steel body both sides with quartering hammer backing pin, then drill steel body head to be inserted in broken body afterbody and to be held together by conical surface self-locking.
When changing broken body, pulled down by drill steel body from quartering hammer, hammer stem is rotated on limit, while knock broken body afterbody with sledgehammer can pull down broken body.
The drill steel body head of drill steel body is plugged in the broken body endoporus of broken body, and when broken body and rock impact, the two connects just more firm.
When mine is exploited rock, be first the broken body head contact of broken body and progress in rock, along with the increase of penetration depth, in the middle part of the broken body of broken body and broken body afterbody just play by rock divide effect, be finally that rock splits into bulk.
In the course of work of hydraulic breaking hammer, drill steel under the impact of piston and rock under its anticaustic, reciprocally move back and forth.Owing to there being the radial clearance of 5 ~ 7mm between the backing pin of quartering hammer and this position of drill steel, along with use gap can increase.In the middle part of drill steel body, both sides adopt ramp structure, are transferred to by rum point on inclined-plane, make impact force create decomposition, the changes of section of this place's structure is mild simultaneously, and intensity is large, solves problem of stress concentration very well, thus solve the destruction of drill steel at this position, improve and reduce use cost application life.
The utility model adopts such scheme, has the following advantages:
1. reduce use cost, drill steel body can Reusability, has greatly saved raw material.
2. reduce difficulty of processing, improve working (machining) efficiency; Heat treatment difficulty is little, not easily bends, and reduces cost of production.
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of existing drill steel in the utility model background technology;
Accompanying drawing 2 is the structural representation of drill steel in the utility model embodiment;
Accompanying drawing 3 is the top view of rearward end in accompanying drawing 2;
Accompanying drawing 4 is that A-A in accompanying drawing 2 is to sectional view;
Accompanying drawing 5 is that B-B in accompanying drawing 2 is to sectional view;
Accompanying drawing 6 is hydraulic crushing hammar drill rod and hydraulic breaking hammer mounting structure schematic diagram in the utility model background technology;
Accompanying drawing 7 is hydraulic crushing hammar drill rod and hydraulic breaking hammer mounting structure schematic diagram in the utility model embodiment;
In figure: 1-drill steel body; 11-drill steel body afterbody; In the middle part of 12-drill steel body; 13-drill steel body head; The broken body of 2-; 21-truncated cone-shaped endoporus; The broken body endoporus of 22-; In the middle part of the broken body of 23-; The broken body head of 24-; The broken body afterbody of 25-; 3-quartering hammer; 4-quartering hammer backing pin.
Detailed description of the invention
Embodiment, as shown in Figure 2, a kind of hydraulic crushing hammar drill rod, comprises drill steel body 1, broken body 2 two parts, and drill steel body 1 and broken body 2 are removably connected by the conical surface.
Described drill steel body 1 comprises drill steel body afterbody 11 that one connects, in the middle part of drill steel body 12 and drill steel body head 13; Broken body 2 to comprise in the middle part of the broken body head 24 that one connects, broken body 23 and broken body afterbody 25;
Drill steel body head 13 holds together with the conical surface self-locking of broken body afterbody 25 by 10 ± 0.5 °.
The front end of described drill steel body head 13 has truncated cone-shaped endoporus 21, and having in broken body afterbody 25 matches with drill steel body head 13 carries out the broken body endoporus 22 of grafting; This broken body endoporus 22 is all coniform hole.Be the spherical of R52 bottom its hole.
As shown in Figure 3, described drill steel body afterbody 11 is tapered frustum cone structure, its section area from the middle part of the drill steel body 12 side to away from the middle part of drill steel body 12 side diminish gradually.
This design of drill steel body afterbody 11, when piston strike area is identical, shock stress can spread, and is unlikely to stress and too concentrates and make the piston scope of attack collapse block.
In the middle part of drill steel body, 12 is monosymmetric bluff body structure near one end of drill steel body afterbody 11, is connected between its with drill steel body afterbody 11 by arc transition, the both sides of this bluff body part with in the middle part of drill steel body 12 both sides, front end be connected respectively by chamfered transition.
This design, transfers to rum point on inclined-plane, makes impact force create decomposition, and the changes of section of this place's structure is mild simultaneously, and intensity is large, solves problem of stress concentration very well, thus solves the destruction of drill steel at this position, improves and reduces use cost application life.
As shown in Figure 4, Figure 5, in the middle part of broken body 23 and broken body head 24 be octahedral frustum of a pyramid shape structure.So just make the sharp intensity of blade good, production efficiency is high.When blade wearing and tearing rust, can change a broken body, drill steel body can continue to use, and cost is low.
As shown in Figure 7, when drill steel body 1 and broken body 2 are installed, first being loaded according to the load mode of existing drill steel the rear end of drill steel body 1 is arranged on quartering hammer 3, intert the bluff body locations of structures of in the middle part of drill steel body 12 both sides with quartering hammer backing pin 4, then drill steel body head 13 to be inserted in broken body afterbody 25 and to be held together by conical surface self-locking.
When changing broken body 2, pulled down by drill steel body 1 from quartering hammer 3, hammer stem is rotated on limit, while knock broken body afterbody 25 with sledgehammer can pull down broken body 2.
The drill steel body head 13 of drill steel body 1 is plugged in the broken body endoporus 22 of broken body 2, and when broken body 2 is with rock impact, the two connects just more firm.
When mine is exploited rock, first be that the broken body head 24 of broken body 2 contacts and progresses in rock, along with the increase of penetration depth, in the middle part of the broken body of broken body 2 23 and broken body afterbody 25 just play by rock divide effect, be finally that rock splits into bulk.
In the course of work of hydraulic breaking hammer, drill steel under the impact of piston and rock under its anticaustic, reciprocally move back and forth.Owing to there being the radial clearance of 5 ~ 7mm between the backing pin of quartering hammer and this position of drill steel, along with use gap can increase.In the middle part of drill steel body, 12 both sides adopt ramp structure, are transferred to by rum point on inclined-plane, make impact force create decomposition, the changes of section of this place's structure is mild simultaneously, and intensity is large, solves problem of stress concentration very well, thus solve the destruction of drill steel at this position, improve and reduce use cost application life.
Claims (5)
1. a hydraulic crushing hammar drill rod, comprises drill steel body (1), broken body (2) two parts, it is characterized in that: drill steel body (1) and broken body (2) are removably connected by the conical surface;
Described drill steel body (1) comprises drill steel body afterbody (11) that one connects, (12) and drill steel body head (13) in the middle part of drill steel body; Broken body (2) comprises (23) and broken body afterbody (25) in the middle part of the broken body head (24) of one connection, broken body; Drill steel body head (13) holds together with the conical surface self-locking of broken body afterbody (25) by 10 ± 0.5 °;
The front end of described drill steel body head (13) has truncated cone-shaped endoporus (21), and having in broken body afterbody (25) matches with drill steel body head (13) carries out the broken body endoporus (22) of grafting; This broken body endoporus (22) is all coniform hole.
2. a kind of hydraulic crushing hammar drill rod according to claim 1, is characterized in that:
Described drill steel body afterbody (11) is tapered frustum cone structure, and its section area diminishes from the side of (12) in the middle part of drill steel body gradually to away from the side of (12) in the middle part of drill steel body.
3. a kind of hydraulic crushing hammar drill rod according to claim 2, is characterized in that:
In the middle part of drill steel body, (12) are monosymmetric bluff body structure near one end of drill steel body afterbody (11), be connected by arc transition between its with drill steel body afterbody (11), the both sides of this bluff body part are connected respectively by chamfered transition with the both sides, front end of (12) in the middle part of drill steel body.
4. a kind of hydraulic crushing hammar drill rod according to claim 3, is characterized in that: in the middle part of broken body, (23) are octahedral frustum of a pyramid shape structure.
5. a kind of hydraulic crushing hammar drill rod according to claim 3, is characterized in that: broken body head (24) is octahedral frustum of a pyramid shape structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520461842.7U CN204877475U (en) | 2015-07-01 | 2015-07-01 | Hydraulic pressure quartering hammer drill rod |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520461842.7U CN204877475U (en) | 2015-07-01 | 2015-07-01 | Hydraulic pressure quartering hammer drill rod |
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| CN204877475U true CN204877475U (en) | 2015-12-16 |
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| CN201520461842.7U Active CN204877475U (en) | 2015-07-01 | 2015-07-01 | Hydraulic pressure quartering hammer drill rod |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106012787A (en) * | 2016-05-31 | 2016-10-12 | 福州麦辽自动化设备有限公司 | Drill rod triggering breaking hammer based on hydraulic valve control |
| CN107362468A (en) * | 2017-08-30 | 2017-11-21 | 明光浩淼安防科技股份公司 | A kind of Multifunctional crushing hammer |
| CN108517915A (en) * | 2018-04-25 | 2018-09-11 | 水山机械(嘉兴)有限公司 | The drill steel of hydraulic breaking hammer |
| CN110025899A (en) * | 2019-04-28 | 2019-07-19 | 三一重工股份有限公司 | A kind of break-in tool, quartering hammer and forcible entry fire fighting truck |
| CN114278219A (en) * | 2021-11-23 | 2022-04-05 | 中车永济电机有限公司 | Reusable punching and pre-embedding steel pipe assembly for railway ballast |
-
2015
- 2015-07-01 CN CN201520461842.7U patent/CN204877475U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106012787A (en) * | 2016-05-31 | 2016-10-12 | 福州麦辽自动化设备有限公司 | Drill rod triggering breaking hammer based on hydraulic valve control |
| CN106012787B (en) * | 2016-05-31 | 2017-12-19 | 福州麦辽自动化设备有限公司 | A kind of drill steel based on hydraulic valve control triggers quartering hammer |
| CN107362468A (en) * | 2017-08-30 | 2017-11-21 | 明光浩淼安防科技股份公司 | A kind of Multifunctional crushing hammer |
| CN108517915A (en) * | 2018-04-25 | 2018-09-11 | 水山机械(嘉兴)有限公司 | The drill steel of hydraulic breaking hammer |
| CN110025899A (en) * | 2019-04-28 | 2019-07-19 | 三一重工股份有限公司 | A kind of break-in tool, quartering hammer and forcible entry fire fighting truck |
| CN114278219A (en) * | 2021-11-23 | 2022-04-05 | 中车永济电机有限公司 | Reusable punching and pre-embedding steel pipe assembly for railway ballast |
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