CN2337316Y - Speed increasing and reducing mechanism for flexible axle driving rock driller transmitting dynamic force - Google Patents
Speed increasing and reducing mechanism for flexible axle driving rock driller transmitting dynamic force Download PDFInfo
- Publication number
- CN2337316Y CN2337316Y CN 98220668 CN98220668U CN2337316Y CN 2337316 Y CN2337316 Y CN 2337316Y CN 98220668 CN98220668 CN 98220668 CN 98220668 U CN98220668 U CN 98220668U CN 2337316 Y CN2337316 Y CN 2337316Y
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- CN
- China
- Prior art keywords
- flexible axle
- gear
- clutch
- output shaft
- speed increasing
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- Expired - Fee Related
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Abstract
The utility model relates to a speed increasing and reducing mechanism for flexible axle driving rock driller transmitting dynamic force. A gear speed increasing mechanism which is composed of a big gear and a pinion gear is arranged between a gasoline engine or an output shaft of a motor and a flexible axle, and a clutch mechanism which is mainly composed of a clutch disc and a clutch block is arranged between an output shaft of the gasoline engine and the gear speed increasing mechanism. An overrunning clutch structure is arranged between the output shaft of the motor and the gear speed increasing mechanism, and a set of speed reducing mechanisms which are composed of small angular gears and big arced gears are arranged between the output of the flexible axle and the working portion of the rock drill. The utility model has the advantage of scientific and reasonable structural design.
Description
The utility model relates to power transmission technology, mainly proposes a kind of increase and decrease speed mechanism of flexible axle transmission hammer drill transferring power.
The flexible axle transmission hammer drill that the applicant has formerly proposed owing to adopted work mechanism and power section isolating construction, can strengthen power power, and reduce the fault rate of machine, has improved stability and reliability.Adopt the flexible axle transferring power between power source and the work mechanism part, but have good operation effect and generalization.But adopt flexible axle to transmit the power that is the moment of torsion of motor or gasoline, when the power of power source and rotating speed are determined, be applied to moment of torsion on the flexible axle for reducing power source, make flexible axle have good usability, even the flexible axle distortion is little, intensity increases, and must improve the rotating speed of power output, and a speed increasing mechanism promptly is set between power source and flexible axle; Consider the requirement of hammer drill working speed, must be provided with one at the binding site of flexible axle output and hammer drill working portion and overlap reducing gear that this all is necessary for utilizing flexible axle transferring power and make operating mechanism that good usability be arranged better in design.
The purpose of this utility model promptly is the increase and decrease speed mechanism that proposes flexible axle transmission hammer drill transferring power, and makes great efforts to make it to have reasonable in design, the characteristics of better usability are arranged.
The utility model takes following technical proposals to finish its goal of the invention: the power source of flexible axle transmission hammer drill can be gasoline engine and motor; The gear up mechanism that pinion constitutes and be provided with mainly between output shaft of gasoline engine and gear up mechanism and determine combination and the arrangement of clutch that separates by what clutch discs, clutch block were formed by petrol engine rotational speed is set between output shaft of gasoline engine and flexible axle by gear wheel; The gear up mechanism that is made of gear wheel, pinion is being set between motor output shaft and the flexible axle and between motor output shaft and gear up mechanism, is being provided with a freewheel clutch structure.
The rotating speed of gasoline engine entire work process is non-constant, from starting to rated speed a process is arranged, and this just requires to cross at its rotating speed and lowly it can not be combined with load when being idling, otherwise will cause damage to gasoline engine.And the arrangement of clutch that clutch discs, clutch block constitute, it is big to cross when low moment of torsion at rotating speed, and clutch block does not combine with clutch discs, has only when reaching when needing rotating speed, and clutch block just combines with clutch discs under centrifugal action, realizes the drive load.
The invariablenes turning speed of motor, but for preventing that its polarity from connecing instead, the motor counter-rotating prevents the hammer drill work that flexible axle damage and influence are connected with the flexible axle output, a cover freewheel clutch structure is set can avoids this kind situation.
The reducing gear that one cover is made of small conical gear and big arc gear wheel is set between flexible axle output and hammer drill working portion, select arc gear wheel and its modulus of scientific design, it mainly is the stress surface when prolonging transmission of power, reduce wear, this mechanism is had transmit steadily, reduce noise and increase the characteristics that can bear impact load.
The utility model scientific structure design is reasonable, can finish the utility model proposes of task preferably.
Embodiment:
Accompanying drawing 1 is the speed increasing mechanism schematic diagram of gasoline engine as power source.
Accompanying drawing 2 is the speed increasing mechanism schematic diagram of motor as power source.
Accompanying drawing 3 is the reducing gear structural representation.
The embodiment that provides is in conjunction with the accompanying drawings further specified its structure:
As shown in Figure 1: the outrigger shaft 6 of gasoline engine 1 combines with axle sleeve 7 by key 5 and is fastening by screw 8; Castle wheel 4 is connected with axle sleeve 7 with screw thread, and the outer rim of castle wheel 4 is connected with clutch block 3 by pin 2 and spring 16; And between the gear wheel 19 with clutch discs 14 ring sets of rivet 15 riveteds on the clutch block 3 and and clutch block 3 between have certain interval.Drive castle wheel 4 during the gasoline engine rotation, clutch block 3 is rotation synchronously with it, when rotating speed is increased to certain value, the centrifugal force that clutch block 3 is produced has overcome the tension force of spring 16, outwards fly to be pressed onto on the clutch discs 14, clutch discs 14 is rotated thereupon, and gear wheel 19 drives pinion 21 rotations that are engaged with when rotating with clutch discs 14, realize speedup.Gear wheel 19 usefulness bearings 11,17 difference framves are on axle sleeve 7 and housing 23.
The rotating shaft of pinion 21 is connected with input end of flexible shaft.
As shown in Figure 2: 48 is motor rotor, its outrigger shaft 46 connects one by key 40 with axle sleeve 39, connect a bicycle freewheel 42 on the axle sleeve 39 threadably, gear wheel 38 by 36 on bearing on the overhanging end of axle sleeve 39, three rivets 37 of riveted joint pass the between cog breach of flywheel 42 on it, and it is the freewheel clutch structure that flywheel promptly is set between gear wheel 38 and the motor output shaft.The rotation of motor outrigger shaft 46 drives axle sleeve 39 and flywheel 42 rotations by key 40 thus, drives gear wheel 38 simultaneously and realizes speedup with pinion 34 rotations that are engaged with.When counter-rotating appearred in motor, because wheel action, gear wheel, pinion were failure to actuate, and can prevent the flexible axle counter-rotating that is connected with pinion shaft.
As shown in Figure 3: the rigidly connected joint 52 of flexible axle 51 outputs that is inserted in the flexible pipe 50 drives bevel pinion 53 rotations to connect threadably, be engaged with arc gear wheel 54 with bevel pinion greater than its diameter, angle is 100 ° between two gears, mainly is that consideration reducing gear casing and reducing gear output shaft are decided with combining of hammer drill working portion bent axle.The modulus of arc gear wheel 54 is definite through the computer design, and concrete parameter is not done concrete argumentation here.Large and small gear overlaps on 56 at deceleration box 55 and cast steel by bearing bracket stand respectively.The design of this reducing gear makes the purpose that adapts to the strong load of impact shock be achieved, and intensity and application life meet the requirements fully, does not find big pinion damage or seriously degrade wearing and tearing after testing continuous use and creeping into 100 meters, and noise level descends to some extent.
Claims (1)
1, a kind of increase and decrease of flexible axle transmission hammer drill transferring power speed mechanism is characterized in that:
A, the gear up mechanism that is made of gear wheel (19), pinion (21) is set between output shaft of gasoline engine (6) and flexible axle and between output shaft of gasoline engine (6) and gear up mechanism, be provided with mainly by clutch discs (14), clutch block (3) forms by definite combination of petrol engine rotational speed and the arrangement of clutch that separates;
The gear up mechanism that pinion (34) constitutes and be provided with between motor output shaft (46) and gear up mechanism and prevent the counter-rotational freewheel clutch structure of flexible axle, is set between motor output shaft (46) and flexible axle by gear wheel (38) b;
C, the reducing gear of a cover by bevel pinion (53) and big arc gear wheel (54) formation is set between flexible axle output and hammer drill working portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98220668 CN2337316Y (en) | 1998-04-04 | 1998-04-04 | Speed increasing and reducing mechanism for flexible axle driving rock driller transmitting dynamic force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98220668 CN2337316Y (en) | 1998-04-04 | 1998-04-04 | Speed increasing and reducing mechanism for flexible axle driving rock driller transmitting dynamic force |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2337316Y true CN2337316Y (en) | 1999-09-08 |
Family
ID=33972404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98220668 Expired - Fee Related CN2337316Y (en) | 1998-04-04 | 1998-04-04 | Speed increasing and reducing mechanism for flexible axle driving rock driller transmitting dynamic force |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2337316Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107621379A (en) * | 2017-10-27 | 2018-01-23 | 中国铁建重工集团有限公司 | A kind of drill jumbo testing equipment |
-
1998
- 1998-04-04 CN CN 98220668 patent/CN2337316Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107621379A (en) * | 2017-10-27 | 2018-01-23 | 中国铁建重工集团有限公司 | A kind of drill jumbo testing equipment |
| CN107621379B (en) * | 2017-10-27 | 2024-05-28 | 中国铁建重工集团股份有限公司 | Test equipment for drilling trolley |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Jieteng Science and Technology Co., Ltd., Luoyang City Document name: payment instructions |
|
| 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 |