CN203751438U - Portable pneumatic saw - Google Patents
Portable pneumatic saw Download PDFInfo
- Publication number
- CN203751438U CN203751438U CN201420122208.6U CN201420122208U CN203751438U CN 203751438 U CN203751438 U CN 203751438U CN 201420122208 U CN201420122208 U CN 201420122208U CN 203751438 U CN203751438 U CN 203751438U
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- CN
- China
- Prior art keywords
- reciprocating lever
- reciprocating
- pneumatic
- saw
- transmission shaft
- 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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Abstract
The utility model discloses a portable pneumatic saw which comprises a pneumatic motor. The pneumatic motor is connected with a connecting shaft. The connecting shaft is provided with a bevel gear through matching of a tapered roller bearing and a bearing sleeve. The bearing sleeve and the pneumatic motor are installed on an upper case and a lower case respectively. Power is transmitted to a transmission shaft through meshing transmission of the bevel gear. The transmission shaft is arranged on the upper case and the lower case through the tapered roller bearing and a key and transmits the power to a reciprocating lever. The reciprocating lever is matched with a moving pair in an upper cover. The front end of the reciprocating lever is provided with a saw blade. The reciprocating motion of the reciprocating lever drives the saw blade to carry out cutting in a reciprocating mode. The pneumatic motor is controlled by a pneumatic loop, the rotating speed of the pneumatic motor can be adjusted by adjusting a throttling valve, the motion speed of the reciprocating lever can be further changed, and therefore the portable pneumatic saw can adapt to sawing different materials. The portable pneumatic saw is stable in performance, high in cutting efficiency, good in portability, high in reliability, convenient to use and high in practical value.
Description
Technical field
The utility model relates to Metal Cutting apparatus field, is specifically related to a kind of portable pneumatic saw.
Background technology
Along with the development of mining industry, safety and efficiency is regarded as the factor of paying attention to the most in mining industry production.It is reported, because high load capacity carries, easily there is crackle, because production safety need to be changed as early as possible in the metal materials such as the scraper conveyer chain in current colliery.The common hand saws of main employing, wastes time and energy at present, and efficiency is extremely low, greatly influence power coal production efficiency.
From related documents, retrieve following several power saw.1. Handheld type light Pneumatic saw: this saw is simple in structure, easy to operate, but rotating speed is too fast, vibrates greatlyr, and machining accuracy is low, has increased workman's labour intensity.2. Pneumatic chain strap saw: this saw operation is very convenient, but the cutting object of this chain saw is mainly wood.3. Pneumatic disc saw: this saw speed is fast, easily cutting, but easily produce spark, poor stability.4. mining hydraulic chain saw: this saw power is large, but taking hydraulic oil as medium, high to part processing precision requirement, easily to reveal, maintenance is inconvenient.
Utility model content
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, and a kind of stable performance, cutting efficiency is high, easy to carry, the scope of application is wide portable pneumatic saw are provided.
A kind of portable pneumatic saw comprises air motor, described air motor is connected with connecting axle, described connecting axle has been installed bevel gear by taper roll bearing and coordinating of bearing holder (housing, cover), described bearing holder (housing, cover) and air motor are arranged on shell and lower casing, power is passed to power transmission shaft by the engaged transmission of described bevel gear, described power transmission shaft is arranged on upper shell and lower casing by taper roll bearing and key, power is passed to reciprocating lever by described power transmission shaft, described reciprocating lever matches with the moving sets being arranged in upper cover, described reciprocating lever front end has been installed saw blade, reciprocating lever reciprocating motion drive saw blade reciprocating cutting.
The utility model adopts air motor as power source, realizes the reciprocating cutting motion of saw blade by machine driven system, regulates the rotating speed of choke valve adjustable pneumatic motor, and then changes the movement velocity of reciprocating lever, can adapt to the sawing of different materials.The utility model stable performance, cutting efficiency is high, good portability, reliability is high, and easy maintenance has larger practical value.
Brief description of the drawings
Fig. 1 is installation diagram of the present utility model.
Fig. 2 is reciprocating lever top view of the present utility model.
Fig. 3 is Pneumatic circuit of the present utility model.
Wherein: 1, air motor, 2, upper shell, 3, bearing holder (housing, cover), 4, taper roll bearing, 5, nut, 6, key, 7, rotating disk, 8, upper cover, 9, moving sets, 10, reciprocating lever, 11, fixture, 12, power transmission shaft, 13, lower casing, 14, sleeve, 15, bevel gear, 16, connecting axle, 17, choke valve, 18, two position two-way valve, 19, pressure-reducing valve.
Detailed description of the invention
Below in conjunction with specific embodiment, the utility model is described further.Should be understood that following examples are only for the utility model is described but not for limiting scope of the present utility model.
Referring to Fig. 1 and Fig. 2, a kind of portable pneumatic saw that the utility model provides comprises air motor 1, described air motor 1 connects with connecting axle 16, described connecting axle 16 has been installed bevel gear 15 by taper roll bearing 4 and coordinating of bearing holder (housing, cover) 3, described bearing holder (housing, cover) 3 is arranged on shell 2 and lower casing 13 with air motor 1, power is passed to power transmission shaft 12 by the engaged transmission of described bevel gear 15, described power transmission shaft 12 is arranged on upper shell 2 and lower casing 13 by taper roll bearing, described power transmission shaft 12 passes to power by key 6 and is mounted on the rotating disk 7 on power transmission shaft 12, described rotating disk 7 passes to power to prevent the reciprocating lever 10 fluctuating with nut 5, described reciprocating lever 10 matches and makes the circumferential movement of transmitting from rotating disk 7 be converted into linear reciprocating motion with the moving sets 9 that is arranged on 8 li of upper covers, described reciprocating lever 10 front ends have been installed fixture 11, described fixture 11 clamping saw blades, the reciprocating motion of reciprocating lever 10 drives saw blade reciprocating cutting.If when power transmission shaft 12 is rotated counterclockwise, under moving sets 7 effects, rotating disk 7 slides into diagram dotted line position place along the trough of reciprocating lever 10, and reciprocating lever 10 drives saw blade sawing forward.In like manner, when power transmission shaft 12 is rotated counterclockwise one week, under moving sets 7 effects, rotating disk 7 slides into initial position along the trough of reciprocating lever 10, and reciprocating lever 10 drives saw blade to complete the reciprocating cutting motion of one-period.
Referring to Fig. 3, a kind of portable pneumatic saw that the utility model provides, described air motor 1 is by pneumatic circuit control, control source of the gas by regulating two position two-way valve 18, pressure-reducing valve 19 is controlled total flow, regulate the rotating speed of choke valve 17 adjustable pneumatic motors 1, and then change the movement velocity of reciprocating lever 10, can adapt to the sawing of different materials.
The utility model adopts air motor 1 as power source, realizes the reciprocating cutting motion of saw blade by machine driven system, its stable performance, and cutting efficiency is high, good portability, reliability is high, easy to use, has larger practical value.
Claims (1)
1. a portable pneumatic saw comprises air motor, it is characterized in that: described air motor is connected with connecting axle, described connecting axle has been installed bevel gear by taper roll bearing and coordinating of bearing holder (housing, cover), described bearing holder (housing, cover) and air motor are arranged on shell and lower casing, power is passed to power transmission shaft by the engaged transmission of described bevel gear, described power transmission shaft is arranged on upper shell and lower casing by taper roll bearing and key, power is passed to reciprocating lever by described power transmission shaft, described reciprocating lever matches with the moving sets being arranged in upper cover, described reciprocating lever front end has been installed saw blade, reciprocating lever reciprocating motion drive saw blade reciprocating cutting.Described air motor, by pneumatic circuit control, regulates the rotating speed of choke valve adjustable pneumatic motor, and then changes the movement velocity of reciprocating lever, can adapt to the sawing of different materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420122208.6U CN203751438U (en) | 2014-03-18 | 2014-03-18 | Portable pneumatic saw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420122208.6U CN203751438U (en) | 2014-03-18 | 2014-03-18 | Portable pneumatic saw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203751438U true CN203751438U (en) | 2014-08-06 |
Family
ID=51246749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420122208.6U Expired - Fee Related CN203751438U (en) | 2014-03-18 | 2014-03-18 | Portable pneumatic saw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203751438U (en) |
-
2014
- 2014-03-18 CN CN201420122208.6U patent/CN203751438U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140806 Termination date: 20150318 |
|
| EXPY | Termination of patent right or utility model |