CN100393481C

CN100393481C - Power tool with oil circulation unit

Info

Publication number: CN100393481C
Application number: CNB2004100879369A
Authority: CN
Inventors: 陈廷源
Original assignee: Hyphone Machine Industry Co Ltd
Current assignee: Hyphone Machine Industry Co Ltd
Priority date: 2004-10-27
Filing date: 2004-10-27
Publication date: 2008-06-11
Anticipated expiration: 2024-10-27
Also published as: CN1765587A; DE102005050154A1

Abstract

The present invention relates to a power tool with an oil circulation unit, which comprises a circulation device, wherein the circulation device has a first end and a second end, and the first end of the circulation device forms a containing space which can be provided with a shaft bar, a cam, two impact bars and a ball seat; the second end of the circulation device is provided with a shaft hole which can be embedded in a drive shaft of the pneumatic tool, the circulation device is driven by the drive shaft to rotate so as to generate the impact action, the outer edge wall surface of the circulation device is annularly provided with a plurality of through holes communicated with the containing space, and the through holes can be used for flowing of lubricating oil. The present invention is a very progressive design.

Description

The power tool of tool oil circulation device

Technical field

The present invention relates to a kind of power tool, particularly a kind of power tool with oil circulation device.

Background technology

The structural form of society makes rapid progress, and the required quality of the life of people improves relatively, and also from the old thinking of " can with all right ", the quite exquisiteness that becomes has the conception of continuous progress or innovation only, could satisfy the demand of modern society to the requirement of things.

Please refer to prior art TW patent announcement and number No. 496817 " air tool impact group ", it includes one and impacts tube, an axle sleeve, a collar, two impact bars and an axostylus axostyle.This impact tube perisporium inner edge is provided with the chute of two half-round sections vertically, can establish for two impact bar cunnings.This collar outer rim then is provided with two semi-circular grooves, can be in chute slide smoothly in order to support this two impact bar, and this axle sleeve can drive two impact bars and moves axially in impacting tube, and power is output on this axostylus axostyle, produces percussion action.

This existing structure still has the many places shortcoming in practicality, because of this impacts tube when rotating, ball in it drives the pushing tow axle sleeve two impact bars and moves outside the exit of impacting tube, and the lubricating oil that this action will be impacted in the tube easily sprays from the exit, makes the lubricating oil that impacts in the tube reduce.When the lubricating oil in this impact tube still carries out percussion action when reducing, just make between the member easily and wear and tear, and the shortcoming that more may block of the iron filings that produce, the possibility that causes pneumatic tool to damage, this kind is not inconsistent very impracticable of design that industry utilizes, so necessity of improvement is arranged.

Summary of the invention

The objective of the invention is to overcome the deficiencies in the prior art and defective, a kind of power tool of tool oil circulation device is provided, the technical problem that its desire solves is, the impact tube of this existing structure is when rotation, ball in it drives the pushing tow axle sleeve two impact bars and moves outside the exit of impacting tube, and the lubricating oil that this action will be impacted in the tube easily sprays from the exit, makes the lubricating oil that impacts in the tube reduce.When the lubricating oil in this impact tube still carries out percussion action when reducing, just make between the member easily and wear and tear, and the shortcoming that more may block of the iron filings that produce, possibility that causes pneumatic tool to damage, quite impracticable, the utmost point awaits improvement.

For reaching above-mentioned purpose, the invention provides a kind of power tool of tool oil circulation device, it includes an EGR, it has first end and second end, its first end is formed with an accommodation space, this accommodation space can be installed an axostylus axostyle, one cam, two impact bars and a ball seat, second end of this EGR is provided with an axis hole, this axis hole can embed this air tool driving shaft, produce percussion action and drive the EGR rotation by driving shaft, this EGR is equipped with the through hole that several are communicated in accommodation space on the outer peripheral edges wall, this through hole can be for lubricating oil circulation, is one to have the design of progressive.

Other purpose, advantage and novel characteristics of the present invention will make it more obvious from the following detailed description and related drawings.

Description of drawings

Fig. 1 is a three-dimensional exploded view of the present invention;

Fig. 2 is a sectional elevation of the present invention;

Fig. 3 is a longitudinal section of the present invention, represents that this EGR is provided with the through hole of different angle;

Fig. 4 is an action diagram of the present invention, represents the state when this EGR begins to rotate;

Fig. 5 is an action diagram of the present invention, represents the state that this EGR is rotating;

Fig. 6 is a longitudinal section of the present invention, represents the state that this EGR stops operating.

Symbol description among the figure

10 axostylus axostyles, 11 first ends

12 second ends, 13 teeth

14 stoppers, 15 springs

20 cams, 21 bulge loops

22 withstanding parts, 23 through holes

30 impact bars, 31 concave ring grooves

40 ball seats, 41 steel balls

50 EGRs, 51 accommodation spaces

52 chutes, 53 axis holes

54 through holes, 60 pneumatic tools

61 driving shafts

The specific embodiment

Relevant the technology used in the present invention, means and effect thereof, lift now that a preferred embodiment and conjunction with figs. describe in detail as after, this only for the usefulness of explanation, is not subjected to the restriction of this kind structure in patent application.

With reference to Fig. 1 and Fig. 2, the present invention includes an EGR 50 that can hold axostylus axostyle 10, cam 20, two impact bars 30 and a ball seat 40.This EGR 50 is equipped with several through holes 54 on the outer peripheral edges wall, this through hole 54 can be for the lubricating oil circulation; Wherein:

This axostylus axostyle 10 has first end 11 and second end 12, its first end 11 can be for connecing the instrument of establishing, and 12 at second end is equipped with tooth 13, and this axostylus axostyle 10 radially is equipped with two stoppers 14 between two

ends

11,12, these axostylus axostyle 10 second ends 12 also are arranged with a spring 15, and these spring 15 pushing tows are in two stoppers, 14 places.

This cam 20 is sheathed on second end 12 of this axostylus axostyle 10, and can produce relative axial displacement relation.These cam 20 outer peripheral edges are formed with a bulge loop 21, and this cam 20 is extended with the withstanding part 22 of a wedge type from a side of bulge loop 21, more establish a through hole 23 with axial teeth groove in this cam 20.This cam 20 is sheathed on 13 ones in the tooth of these axostylus axostyle 10 second ends 12 by through hole 23, and makes spring 15 between cam 20 and stopper 14.

This two impact bar 30 lays respectively at the dual-side of this cam 20, and this two impact bar 30 has a concave ring groove 31 respectively, and this two impact bar 30 contacts with the bulge loop 21 of this cam 20 by two concave ring grooves 31.The stopper 14 that this two impact bar 30 can impact this axostylus axostyle 10 via cam 20 axial drives.

This ball seat 40 is sheathed on second end 12 of this axostylus axostyle 10, and can produce relative rotation relationship.The periphery of this ball seat 40 has been installed with a steel ball 41, and this steel ball 41 also contacts with the withstanding part 22 of this cam 20.

This EGR 50 is a tubular, this EGR 50 has first end and second end, its first end is formed with an accommodation space 51, and this accommodation space 51 can be installed this axostylus axostyle 10, cam 20, two impact bars 30 and ball seat 40 (this repeats no more in this for prior art).These accommodation space 51 internal faces are axially arranged with the chute 52 of two curved profiles, and this chute 52 just can ccontaining this two impact bar 30, and carry out the axial slip action for two impact bars 30 in interior.Second end of this EGR 50 is provided with an axis hole 53, and this axis hole 53 can embed the driving shaft 61 of this pneumatic tool 60, and drives EGR 50 rotations by driving shaft 61.This EGR 50 is equipped with several through holes that are communicated in accommodation space 51 54 on the outer peripheral edges wall, this through hole 54 is positioned at the Origin And Destination place of impact bar 31 mobile routes respectively relatively, and this through hole 54 can be for the lubricating oil circulation.

With reference to Fig. 3, be through hole 54 preferred embodiments of this EGR 50 of the present invention.By can clearly seeing among the figure, this through hole 54 except can be designed to the orthogonal angle of the wall of this EGR 50, more can be designed to have the through hole 54 at an angle of inclination.The angle that this through hole 54 tilts is in general opposite with EGR 50 direction of rotation, so can effectively lubricating oil be sucked in the EGR 50 in rotation.

With reference to Fig. 4, when EGR 50 is subjected to the drive of driving shaft 61 and begins to rotate (this driving shaft 61 is for turning clockwise in the present embodiment), flow out from vertical through hole 54 because the relation of centrifugal force, the lubricating oil in this EGR 50 have partly, and be positioned at outside this EGR 50.As shown in Figure 5, be the EGR 50 that is rotating, lubricating oil outside being positioned at this EGR 50 runs into the through hole 54 of inclination, can be inhaled into and get back in this inquiry loop device 50, perseverance maintains a certain amount of lubricating oil existence in this EGR 50 and make, so can keep its degree of lubrication effectively, and be not easy to take place the shortcoming of member wear-out failure.

With reference to Fig. 6, after spinning movement stops,, can be back to EGR 50 apace via vertical through hole 54 so be positioned at these EGR 50 outer lubricating oil, and the through hole 54 of this inclination also can produce backflow functionality more slowly because of the disappearance of centrifugal force.So, be full of lubricating oil again in this EGR 50, can have prepared to carry out percussion action next time.And this EGR 50 more can be used in electric tool except can being used in pneumatic tool 60, and its adaptability is quite wide, is one to have the design that industry is utilized.

Can summarize the present invention with regard to the above and have following advantage:

1. the power tool of tool oil circulation device of the present invention, wherein this EGR is equipped with several through holes on the outer peripheral edges wall, and this through hole is positioned at the Origin And Destination place of impact bar mobile route respectively relatively, and this through hole can be for the lubricating oil circulation.

2. the power tool of tool oil circulation device of the present invention, wherein the through hole of this inclination is in general opposite with the EGR direction of rotation, so can effectively lubricating oil be sucked in the EGR in rotation.

3. the power tool of tool oil circulation device of the present invention, wherein this vertical through hole can be back in the EGR for the lubricating oil outside the EGR when stopping apace, to carry out percussion action next time.

4. the power tool of tool oil circulation device of the present invention, wherein this EGR removes and can be used in pneumatic tool, more can be used in the electric tool, be the design of a wide adaptability.

Only the above, only be preferred embodiment of the present invention, when can not with qualification scope of the invention process, so the displacement of the change of numerical value or equivalence element such as, or, all should still belong to the category that patent of the present invention contains according to equalization variation and modification that claims of the present invention are done.

Claims

1. the power tool of a tool oil circulation device is characterized in that, comprising:

One EGR, have first end and second end, its first end is formed with an accommodation space, this accommodation space can be installed an axostylus axostyle, a cam, two impact bars and a ball seat, second end of this EGR is provided with an axis hole, and this axis hole can embed the driving shaft of this power tool, produces percussion action and drive the EGR rotation by driving shaft, this EGR is equipped with the through hole that several are communicated in accommodation space on the outer peripheral edges wall, this through hole can be for the lubricating oil circulation.

2. the power tool of tool oil circulation device as claimed in claim 1, wherein, this through hole is positioned at the Origin And Destination place of impact bar mobile route respectively relatively.

3. the power tool of tool oil circulation device as claimed in claim 1, wherein, this through hole is designed to and the orthogonal angle of the wall of EGR.

4. the power tool of tool oil circulation device as claimed in claim 1, wherein, this through hole is designed to the angle that the wall with EGR tilts mutually.

5. the power tool of tool oil circulation device as claimed in claim 1, wherein, this EGR is made as the through hole of vertical through hole and inclination and deposits.

6. as the power tool of claim 4 or 5 described tool oil circulation devices, wherein, the angle that this through hole tilts is opposite with the direction of rotation of EGR, is beneficial to effectively lubricating oil be sucked in the EGR in the rotation.