CN108049802B - Novel torque output structure for hydraulic rock drill - Google Patents
Novel torque output structure for hydraulic rock drill Download PDFInfo
- Publication number
- CN108049802B CN108049802B CN201810036486.2A CN201810036486A CN108049802B CN 108049802 B CN108049802 B CN 108049802B CN 201810036486 A CN201810036486 A CN 201810036486A CN 108049802 B CN108049802 B CN 108049802B
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- CN
- China
- Prior art keywords
- hexagonal
- sleeve
- hexagonal hole
- shaft
- hole shaft
- Prior art date
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- 239000011435 rock Substances 0.000 title claims abstract description 20
- 239000002243 precursor Substances 0.000 claims abstract description 17
- 230000007704 transition Effects 0.000 claims description 10
- 238000012423 maintenance Methods 0.000 abstract description 10
- 239000000463 material Substances 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004630 mental health Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B4/00—Drives for drilling, used in the borehole
- E21B4/06—Down-hole impacting means, e.g. hammers
- E21B4/14—Fluid operated hammers
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a novel torque output structure for a hydraulic rock drill, which comprises a drill rod, wherein a hexagonal hole shaft is coaxially arranged on the drill rod, a precursor is coaxially arranged on the hexagonal hole shaft at a position close to the end part, and a hexagonal sleeve convenient to replace is arranged in the precursor at a position close to the end part of the hexagonal hole shaft. The hexagonal sleeve convenient to replace is arranged, so that the maintenance and replacement of the invention are more convenient, the workload during maintenance is reduced, the maintenance time is saved, the volume of parts to be replaced is reduced, more than 75% of materials are saved, and the use cost of a user is reduced by 80%.
Description
Technical Field
The invention belongs to the field of engineering machinery, and particularly relates to a novel torque output structure for a hydraulic rock drill, which is used in mining, highway, railway, water conservancy and tunnel construction engineering.
Background
At present, in mining, high-speed rail, subway tunnel and water conservancy construction of China, a large number of pneumatic rock drills with pneumatic legs are used, the annual demand is more than 10 ten thousand, and the annual demand of practitioners is more than 35 ten thousand. The pneumatic rock drill has the advantages that: simple structure, low price, low sealing performance requirement and low maintenance professional. The defects are low energy utilization rate, large vibration and high noise, and the problems of oil and gas pollution are existed, which threatens the physical and mental health of miners.
The hydraulic rock drill is an energy-saving and environment-friendly rock drill. The method is characterized in that: the rock drilling speed is high, the noise is low, no oil mist pollution exists, the vibration is small, and the energy is saved.
The working principle of the rock drill is as follows: the high-pressure water is used as power, the reciprocating motion of the piston is controlled through the distribution control valve, and the piston impacts the drill rod and the drill bit to chip the rock during the stroke; when the independent rotating mechanism or the piston returns, the drill rod and the drill bit are driven to rotate for a certain angle. The drill rod and the drill bit are enabled to drill round blast holes in the rock by continuous impact and rotation. The torque output piece driving the drill rod and the drill bit to rotate is a hexagonal hole shaft of the hydraulic rock drill, and the hexagonal body of the drill rod is inserted into a hexagonal hole of the hexagonal hole shaft. The fit clearance between the two is relatively large, and is generally about 0.5 mm. From a number of years of observations, whether hydraulic or pneumatic, the front section of the hexagonal bore (approximately in the range of 50mm in length) that drives the shank into rotation is most subject to wear and tear, which in turn results in: the rock of the rock drill is increased, and the drill shank of the drill rod is easy to break. The hexagonal hole member has to be replaced in time at this time.
However, the installation and replacement of the hexagonal hole member are troublesome, especially the replacement of the hexagonal hole shaft of the hydraulic rock drill is more troublesome, the gear is arranged on the hexagonal hole shaft, the machining precision of the shaft is high, and the key groove is machined, so that the cost of the hexagonal hole shaft is high. The whole shaft is required to be replaced only because of the abrasion of the front section of the hexagonal hole shaft at the position of about 50mm, so that the resource waste and the replacement inconvenience are caused.
Disclosure of Invention
The invention aims to solve the technical problem of overcoming the defects in the prior art and providing a novel torque output structure for the hydraulic rock drill, which is cost-saving and convenient to replace.
In order to solve the problems, the invention adopts the following technical scheme: the utility model provides a novel torque output structure for hydraulic rock drill, includes the drill rod, is equipped with the hexagonal hole axle on the drill rod coaxial, and the position that is close to the tip on the hexagonal hole axle is equipped with the precursor coaxial, is provided with the hexagonal cover of being convenient for change in the position that is close to hexagonal hole axle tip in the precursor.
The following is a further optimization of the present invention for the above scheme: and the hexagonal sleeve is coaxially and detachably assembled with one end of the hexagonal hole shaft.
Further optimizing: and a plurality of holes in the hexagonal sleeve are annularly arranged on one end face, close to the hexagonal hole shaft, of the hexagonal sleeve.
Further optimizing: and a plurality of holes on the hexagonal hole shaft which are matched with the holes on the hexagonal sleeve respectively are annularly arranged on one end face, close to the hexagonal sleeve, of the hexagonal hole shaft.
Further optimizing: the holes on the hexagonal hole shafts are connected with the holes on the corresponding hexagonal sleeves through cylindrical pins.
Further optimizing: the length of the hexagonal sleeve along the axis of the hexagonal sleeve is 45-60mm.
When the hexagonal hole is worn, the hole arranged on the precursor is detached by the elastic retainer ring, and the hexagonal sleeve can be detached from the hexagonal hole shaft for replacement.
The hexagonal sleeve convenient to replace is arranged, so that the maintenance and replacement of the invention are more convenient, the workload during maintenance is reduced, the maintenance time is saved, the volume of parts to be replaced is reduced, more than 75% of materials are saved, and the use cost of a user is reduced by 80%.
The invention is further described below with reference to the drawings and examples.
Drawings
FIG. 1 is a schematic view of the structure of the present invention in an embodiment;
FIG. 2 is a schematic view of a hexagonal sleeve according to an embodiment of the present invention;
Fig. 3 is a side view of fig. 2.
In the figure: 1-a precursor; 2-a cylindrical pin; 3-transition disc; 4-gear sleeve; 5-gear; 6-a first bearing; 7-a flat key; 8-a second bearing; 9-hexagonal hole shaft; 10-hexagonal sleeve; 11-circlips for holes; 12-socket head cap bolts; 13-circlips for shafts; 14-drill rod; holes on the A-hexagonal sleeve; and B is a hole on the shaft of the hexagonal hole.
Detailed Description
As shown in fig. 1 to 3, the embodiment, a novel torque output structure for a hydraulic rock drill comprises a drill rod 14, wherein a hexagonal hole shaft 9 is coaxially arranged on the drill rod 14, a precursor 1 is coaxially arranged on the hexagonal hole shaft 9 at a position close to the end part, and a hexagonal sleeve 10 which is convenient to replace is arranged in the precursor 1 at a position close to the end part of the hexagonal hole shaft 9.
The hexagonal sleeve 10 and one end of the hexagonal hole shaft 9 are coaxially and detachably assembled, and a hexagonal hole capable of accommodating the drill rod 14 is formed in the hexagonal sleeve 10, so that the hexagonal sleeve is convenient to replace and cost is saved.
The length of the hexagonal sleeve 10 along the axis thereof is 45-60mm, so that the design is more beneficial to saving materials and cost and reducing unnecessary waste.
The hexagonal sleeve 10 is provided with a plurality of holes A on the hexagonal sleeve in an annular array on one end face close to the hexagonal hole shaft 9.
And a plurality of holes B on the hexagonal hole shaft, which are matched with the holes A on the hexagonal sleeve respectively, are annularly arranged on one end face, close to the hexagonal sleeve 10, of the hexagonal hole shaft 9.
The hole B on the hexagonal hole shaft is connected with the hole A on the corresponding hexagonal sleeve through the cylindrical pin 2, and the cylindrical pin 2 is in transition fit with the hole B on the hexagonal hole shaft and the hole A on the corresponding hexagonal sleeve respectively, so that the assembly is convenient, and the assembly volume is reduced.
And a hole elastic retainer ring 11 for preventing the hexagonal sleeve 10 from axially moving is arranged at a position, close to one end of the hexagonal sleeve 10, in the precursor 1.
The transition disc 3 is coaxially arranged on the hexagonal hole shaft 9 at a position close to one end of the precursor 1, and the transition disc 3 and the precursor 1 are detachably assembled through a plurality of hexagon socket head cap bolts 12.
The hexagonal hole shaft 9 is rotationally connected with the transition disc 3 through a second bearing 8, one end of the transition disc 3 is also connected with the gear sleeve 4 through an inner hexagon bolt, and the gear sleeve 4 is rotationally connected with the hexagonal hole shaft 9 through a first bearing 6.
The hexagonal hole shaft 9 is coaxially provided with a gear 5 through a flat key 7, and the gear 5 is positioned in the gear sleeve 4.
The hexagonal hole shaft 9 is provided with a shaft circlip 13 at a position close to one end of the gear 5, and the shaft circlip 13 is used for limiting the axial movement of the gear 5.
When the hexagonal hole drill is used, the gear 5 rotates to drive the hexagonal hole shaft 9 to rotate through the flat key 7, the hexagonal hole shaft 9 drives the hexagonal sleeve 10 to rotate through the cylindrical pin 2, so that the drill bit of the drill rod 14 and the drill bit head is driven to rotate, holes are drilled, when the hexagonal hole of the hexagonal sleeve 10 is worn, the hole mounted on the precursor 1 is detached through the elastic retainer ring 11, and the hexagonal sleeve 10 can be detached from the hexagonal hole shaft 9 for replacement.
The hexagonal sleeve convenient to replace is arranged, so that the maintenance and replacement of the invention are more convenient, the workload during maintenance is reduced, the maintenance time is saved, the volume of parts to be replaced is reduced, more than 75% of materials are saved, and the use cost of a user is reduced by 80%.
Claims (1)
1. The utility model provides a novel torque output structure for hydraulic rock drill, includes drill rod (14), coaxial being equipped with hexagonal hole axle (9) on drill rod (14), the coaxial precursor (1) that is equipped with in the position that is close to the tip on hexagonal hole axle (9), its characterized in that: a hexagonal sleeve (10) which is convenient to replace is arranged in the precursor (1) and is close to the end part of the hexagonal hole shaft (9);
the hexagonal sleeve (10) is coaxially and detachably assembled with one end of the hexagonal hole shaft (9);
a hexagonal hole capable of accommodating the drill rod (14) is formed in the hexagonal sleeve (10);
The length of the hexagonal sleeve (10) along the axis of the hexagonal sleeve is 45-60mm;
A plurality of holes (A) on the hexagonal sleeve are annularly arranged on one end face, close to the hexagonal hole shaft (9), of the hexagonal sleeve (10);
a plurality of holes (B) on the hexagonal hole shaft which are respectively matched with the holes (A) on the hexagonal sleeve are annularly arranged on one end face, close to the hexagonal sleeve (10), of the hexagonal hole shaft (9);
the holes (B) on the hexagonal hole shafts are connected with the corresponding holes (A) on the hexagonal sleeves through cylindrical pins (2); the cylindrical pin (2) is respectively in transition fit with the hole (B) on the hexagonal hole shaft and the corresponding hole (A) on the hexagonal sleeve;
A hole elastic retainer ring (11) for preventing the hexagonal sleeve (10) from axially moving is arranged at a position, close to one end of the hexagonal sleeve (10), in the precursor (1);
A transition disc (3) is coaxially arranged on the hexagonal hole shaft (9) at a position close to one end of the precursor (1), and the transition disc (3) and the precursor (1) are detachably assembled;
the hexagonal hole shaft (9) is rotationally connected with the transition disc (3) through a second bearing (8), one end of the transition disc (3) is also connected with the gear sleeve (4) through an inner hexagon bolt, and the gear sleeve (4) is rotationally connected with the hexagonal hole shaft (9) through a first bearing (6);
The hexagonal hole shaft (9) is coaxially provided with a gear (5) through a flat key (7), and the gear (5) is positioned in the gear sleeve (4);
and an elastic check ring (13) for the shaft is arranged at a position, close to one end of the gear (5), on the hexagonal hole shaft (9), and the elastic check ring (13) for the shaft is used for limiting the axial movement of the gear (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810036486.2A CN108049802B (en) | 2018-01-15 | 2018-01-15 | Novel torque output structure for hydraulic rock drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810036486.2A CN108049802B (en) | 2018-01-15 | 2018-01-15 | Novel torque output structure for hydraulic rock drill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108049802A CN108049802A (en) | 2018-05-18 |
| CN108049802B true CN108049802B (en) | 2024-05-28 |
Family
ID=62127366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810036486.2A Active CN108049802B (en) | 2018-01-15 | 2018-01-15 | Novel torque output structure for hydraulic rock drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108049802B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107905722B (en) * | 2017-12-20 | 2024-03-08 | 山东天瑞重工有限公司 | Closed hydraulic rock drill |
Citations (8)
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|---|---|---|---|---|
| CN103410439A (en) * | 2013-08-29 | 2013-11-27 | 潍坊天瑞重工凿岩机械有限公司 | Rock drilling machine capable of cooling rubber cokeslet steel collar type hexagonal drill rod |
| CN203738076U (en) * | 2014-03-20 | 2014-07-30 | 福建省福鼎市精悍精机有限公司 | 180-degree multi-spindle device |
| CN204002536U (en) * | 2014-07-02 | 2014-12-10 | 衡阳华菱钢管有限公司 | Three-member type drilling tool |
| CN104302443A (en) * | 2012-04-17 | 2015-01-21 | Fcs系统股份有限公司 | Electric spindle for numerical control machines |
| CN204477257U (en) * | 2014-12-24 | 2015-07-15 | 天津中德传动有限公司 | A kind of speed reducer assembly of integrated Parking Brake |
| CN105562726A (en) * | 2016-03-12 | 2016-05-11 | 陕西秦川精密数控机床工程研究有限公司 | Special servo electric spindle for ultrasonic cutting machining |
| CN206748298U (en) * | 2017-05-20 | 2017-12-15 | 王磊 | A kind of outer six side's mounting and dismounting tools of frequency converter |
| CN207829801U (en) * | 2018-01-15 | 2018-09-07 | 山东天瑞重工有限公司 | A kind of novel hydraulic drill torque export structure |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2905418A1 (en) * | 2014-02-11 | 2015-08-12 | Sandvik Intellectual Property AB | Drill string component coupling device |
-
2018
- 2018-01-15 CN CN201810036486.2A patent/CN108049802B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104302443A (en) * | 2012-04-17 | 2015-01-21 | Fcs系统股份有限公司 | Electric spindle for numerical control machines |
| CN103410439A (en) * | 2013-08-29 | 2013-11-27 | 潍坊天瑞重工凿岩机械有限公司 | Rock drilling machine capable of cooling rubber cokeslet steel collar type hexagonal drill rod |
| CN203738076U (en) * | 2014-03-20 | 2014-07-30 | 福建省福鼎市精悍精机有限公司 | 180-degree multi-spindle device |
| CN204002536U (en) * | 2014-07-02 | 2014-12-10 | 衡阳华菱钢管有限公司 | Three-member type drilling tool |
| CN204477257U (en) * | 2014-12-24 | 2015-07-15 | 天津中德传动有限公司 | A kind of speed reducer assembly of integrated Parking Brake |
| CN105562726A (en) * | 2016-03-12 | 2016-05-11 | 陕西秦川精密数控机床工程研究有限公司 | Special servo electric spindle for ultrasonic cutting machining |
| CN206748298U (en) * | 2017-05-20 | 2017-12-15 | 王磊 | A kind of outer six side's mounting and dismounting tools of frequency converter |
| CN207829801U (en) * | 2018-01-15 | 2018-09-07 | 山东天瑞重工有限公司 | A kind of novel hydraulic drill torque export structure |
Non-Patent Citations (1)
| Title |
|---|
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| Publication number | Publication date |
|---|---|
| CN108049802A (en) | 2018-05-18 |
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