CN2288269Y - Flexible shaft driven rock drill - Google Patents
Flexible shaft driven rock drill Download PDFInfo
- Publication number
- CN2288269Y CN2288269Y CN 97204479 CN97204479U CN2288269Y CN 2288269 Y CN2288269 Y CN 2288269Y CN 97204479 CN97204479 CN 97204479 CN 97204479 U CN97204479 U CN 97204479U CN 2288269 Y CN2288269 Y CN 2288269Y
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- CN
- China
- Prior art keywords
- flexible axle
- impact piston
- crankcase
- chamber
- gear
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Percussive Tools And Related Accessories (AREA)
Abstract
The utility model discloses a novel flexible shaft driven rock drill, which comprises a power source and a working machine separation mechanism. A motor is connected with one end of a crankshaft in a crankshaft box via a flexible axle, the other end of the crankshaft is provided with an eccentric ring which is connected with a ratchet mechanism via a driller turning shaft, and the ratchet mechanism is connected with a driller turning gearwheel via a gear ring. A cylinder body is arranged between the crankshaft box and a machine head, and the cylinder body is provided with an impact piston, a compression piston, etc. A power source of the utility model is connected with a working machine via the flexible axle without an additional air compressor, so the utility model can reduce failure rate and can enhance stability and reliability, and meanwhile, the length of driving tunnel can not be limited.
Description
The utility model belongs to a kind of rock drilling machinery pneumatic tool, relates to a kind of novel flexible axle transmission hammer drill.
Existing hammer drill divides three classes such as diesel rock frill, air drill and electric drill basically.Diesel rock frill is motive power with the two-stroke gasoline engine, engine piston and impact piston place in the same cylinder simultaneously, engine piston and impact piston interact and hit the drill steel work done down, and helicla flute and the ratchet mechanism by impulsion cylinder portion makes drill steel obtain rotation again.It does not need power supply, and is easy to carry, but its power and operating mechanism unite two into one and influence each other, disturb, restrict, so fault rate is high and be difficult to judge and get rid of, has influenced the reliability and stability of complete machine.Air drill has been realized separating of power source and operating mechanism, thereby has reduced fault rate, and the stability and the reliability of complete machine increase.But the big need of its initial investment expense are purchased air compressor, channelling, joint etc.; The development length of its ventilating duct is subjected to the restriction of duct pressure loss, extends oversizely, and the pressure loss is big, and ballistic work just descends, so that drops to and can't work, and in addition, also needs a power source.Electric drill is electric tools sheerly, is not with impact, only is used for the low slightly rock-boring of hardness, and the degree of depth and direction are restricted.
The purpose of this utility model provides a kind of novel flexible axle transmission hammer drill, thereby realizes that power source separates with operating mechanism, has reduced fault rate, has improved stability and reliability, and the length of digging laneway increases greatly simultaneously.
The purpose of this utility model realizes by following scheme: described hammer drill comprises a motor or gasoline engine, crankcase, change the pricker gear, ratchet mechanism, supporting leg and head, one bit shank cover is arranged in the head, adorn a drill steel in the bit shank cover, other has a cylinder body, the one end is connected with crankcase, the other end is connected with head, motor or gasoline engine are connected with bent axle one end in the crankcase by flexible axle, the other end of bent axle has an eccentric ring, eccentric ring drives to commentaries on classics pricker axle by fixed claw and is connected with ratchet mechanism, be fixed with a gear ring on the ratchet mechanism, gear ring is connected with commentaries on classics pricker gear.
In order to improve transmission efficiency, reduce the flexible axle size, between motor and flexible axle, be provided with a gear up mechanism.
In order to increase the impact force of operating mechanism, be provided with gear alkali speed mechanism at flexible axle and bent axle binding site.
One impact piston is arranged in the described cylinder body, and there is a displacer impact piston inside, forms an inner chamber between impact piston and the crankcase, forms an inner chamber between the head, and a sealing chamber is arranged between impact piston and the displacer.
One admission valve is arranged on the described crankcase, and itself and crankcase communicate with chamber between the impact piston.
The utility model has following advantage through trying out:
1, owing to adopted work mechanism and power section isolating construction, so reduced the fault rate of machine, stability and reliability have been improved, avoided interference and the influence between the two of work mechanism and power source, particularly eliminated the heat affecting of the diesel rock frill course of work, make the amplitude of variation of rate of penetration very little, it is soft to creep into balance, and average degree of reliability surpasses 500 linear meter(lin.m.)s.
2, owing to adopt the flexible axle transferring power between power source and the work mechanism, need ventilating duct and air compressor machine like that so need not air drill, the length of digging laneway is also unrestricted simultaneously, has significantly reduced investment cost.
3, the source because motor or gasoline engine all can be used as power, it has enlarged the scope of application.
4, be provided with speed increasing mechanism at the top of flexible axle transmission, terminal additional reducing gear, thereby reduced the weight of flexible axle, improved transmission efficiency, increased impact force simultaneously.
Below in conjunction with embodiment the utility model is further described:
Fig. 1 is an overall structure schematic diagram of the present utility model.
Hammer drill as shown in FIG. comprises a motor or gasoline engine 1, crankcase 20, supporting leg 19, changes pricker gear 10 and head 22, and bit shank cover 18 is arranged in the head 22, dress drill steel 11 in the bit shank cover 18.Motor or gasoline engine 1 are connected with bent axle 13 1 ends in being contained in crankcase 20 by flexible axle 4, and bent axle 13 other ends have an eccentric ring 14, and eccentric ring 14 is connected by the gear ring 17 on changeing pricker axle 15 and being fixed on ratchet mechanism, and gear ring 17 is connected with commentaries on classics pricker gear 10.Gear up mechanism 3 and flexible shaft end 2 are set between motor 1 and the flexible axle 4, gear reduction 6, flexible shaft end 5 are set between flexible axle 4 and the bent axle 13.
Cylinder body 21 as shown in Figure 1, the one end is connected with crankcase 20, and the other end is connected with head 22.One impact piston 16 is arranged in the cylinder body 21, and the inner chamber of impact piston 16 has a displacer 9, and displacer 9 is connected with bent axle 13 by a connecting rod 8.Form a cavity C between impact piston 16 and the crankcase, and form a chamber D between the head, form a chamber A between impact piston 16 and the displacer 9.Communicate at porose a in impact piston 16 middle parts and chamber A, chamber A communicates by hole B on the impact piston 16 and chamber D, and chamber D communicates by b hole and the atmosphere on the cylinder body 2/.One admission valve 7 is arranged on the crankcase, and itself and crankcase 20 communicate with cavity C between the impact piston 16.
During use, start motor or gasoline engine 1, power passes to bent axle 13 through flexible axle 4, by bent axle 13 drivening rods 8, thereby the displacer 9 in the drive cylinder body 21 makes displacer 9 move back and forth the result in impact piston 16 and makes chamber A form enclosed cavity, promptly formed the compressed air stream that has pressure to change, then promote impact piston 16 motion and work done, the front end of impact piston 16 is directly beaten the drill steels 11 that are contained in the bit shank cover 18, need not to establish in addition the air compressor machine source that is used as power.When bent axle 13 rotated, the eccentric ring 14 of one end drives changeed 15 rotations of pricker axle, drove gear ring 17, changeed pricker gear 18 through ratchet mechanism again, thereby drive drill steel 11 rotations.Can be during operation with holding handgrip 12 and adjusting supporting leg 19 in the hope of best operational position.
Claims (6)
1, a kind of novel flexible axle transmission hammer drill, comprise a motor or gasoline engine (1), crankcase (20), supporting leg (19), change pricker gear (10), head (22), ratchet mechanism, one bit shank cover (18) is arranged in the head (22), adorn a drill steel (11) in the bit shank cover (18), it is characterized in that: a cylinder body (21) is arranged, the one end is connected with crankcase (20), the other end is connected with head (22), motor (1) is connected by flexible axle (4) bent axle (13) one ends interior with being contained in crankcase (20), the other end of bent axle (13) has an eccentric ring (14), eccentric ring (14) is connected with ratchet mechanism by changeing pricker axle (15), fix a gear ring (17) on the ratchet mechanism, gear ring (17) is connected with commentaries on classics pricker gear (10).
2, novel flexible axle transmission hammer drill according to claim 1 is characterized in that: a gear up mechanism (3) is set between motor (1) and the flexible axle (4).
3, novel flexible axle transmission hammer drill according to claim 1 is characterized in that: at flexible axle (4) and bent axle (13) binding site one gear reduction (6) is set.
4, novel flexible axle transmission hammer drill according to claim 1, it is characterized in that: an impact piston (16) is arranged in the described cylinder body (21), there is a displacer (9) impact piston (16) inside, one end of displacer (9) is connected with bent axle (13) by connecting rod (8), form a cavity C between impact piston (16) and the crankcase, and chamber D of formation between the head (22), one sealing chamber A is arranged between impact piston (16) and the displacer (9), communicate at impact piston (16) porose a in middle part and chamber A.
5, according to claim 1,4 described novel flexible axle transmission hammer drill, it is characterized in that: described chamber A communicates by hole B on the impact piston (16) and chamber D, and chamber D communicates by b hole and the atmosphere on the cylinder body (21).
6, according to claim 1,4 described novel flexible axle transmission hammer drill, it is characterized in that: an admission valve (7) is arranged on the crankcase (20), and itself and crankcase (20) communicate with cavity C between the impact piston (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97204479 CN2288269Y (en) | 1997-01-18 | 1997-01-18 | Flexible shaft driven rock drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97204479 CN2288269Y (en) | 1997-01-18 | 1997-01-18 | Flexible shaft driven rock drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2288269Y true CN2288269Y (en) | 1998-08-19 |
Family
ID=33924986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97204479 Expired - Fee Related CN2288269Y (en) | 1997-01-18 | 1997-01-18 | Flexible shaft driven rock drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2288269Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104153772B (en) * | 2014-07-08 | 2017-03-08 | 中国海洋石油总公司 | A kind of drilling type well wall coring device |
-
1997
- 1997-01-18 CN CN 97204479 patent/CN2288269Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104153772B (en) * | 2014-07-08 | 2017-03-08 | 中国海洋石油总公司 | A kind of drilling type well wall coring device |
| US10018038B2 (en) | 2014-07-08 | 2018-07-10 | China National Offshore Oil Corporation | Drilling type sidewall coring apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |