CN201669690U

CN201669690U - Portable angle impact tool

Info

Publication number: CN201669690U
Application number: CN2010201864361U
Authority: CN
Inventors: 宋伟; 王小勇; 赵祥
Original assignee: Nanjing Chervon Industry Co Ltd
Current assignee: Nanjing Chervon Industry Co Ltd
Priority date: 2010-05-11
Filing date: 2010-05-11
Publication date: 2010-12-15
Anticipated expiration: 2020-05-11

Abstract

The utility model provides a portable angle impact tool which comprises a shell, and a motor and a drive mechanism which are arranged in the shell. The drive mechanism comprises a drive rod extending along a longitudinal long axis X, a principal axis extending along the Y axis vertical to the X axis, an impact component connected with the principal axis, and an output shaft. A first drive piece arranged at one end of the drive rod is meshed with a second drive piece arranged at one end of the principal axis, and a pinion arranged at the other end of the drive rod is meshed with a gear on the motor output shaft of the motor. The portable angle impact tool is characterized in that on the Y-axis direction, the impact component and the principle axis are positioned at one side of the second drive piece, and the longitudinal long axis X of the drive rod is positioned at the other end of the second drive piece. For the angle impact electric power tool, the first drive piece on a gear drive rod is meshed with the second drive piece on the principle axis at one side away from an impact block, therefore, the space is saved and the structure is more compact.

Description

Portable angular tool

Technical field

The utility model relates to a kind of portable impact tool, especially a kind of portable angular tool.

Background technology

Along with percussion tool, for example impact screwdriver, impact wrench, percussion drill etc., application more and more widely, its portable and power more and more receives publicity, wherein the complete machine size is that the evaluation portability is a key factor will considering.To impact screwdriver is example, the motor output shaft and the main shaft of common on the market impact screwdriver are arranged point-blank basically at present, the fuselage that make to impact screwdriver is longer, is not easy to the user when especially using and operates in narrow and small relatively zone, space, even can't operate.

In order to solve the problems of the technologies described above, screwdriver is impacted at existing two kinds of angles on the market, and transmission mechanism is made orthogonal two parts to shorten fuselage length.Screwdriver is impacted at existing angle, as shown in Figure 1, working head 122 is less, the motor output shaft and the vertical design of work output shaft of screwdriver impacted at the angle, reduced the space, but this angle is impacted the impact structure of screwdriver and is positioned at the position of underbelly near motor, and its impact energy passes to by the next stage transmission device in the process of work output shaft and has a large amount of energy losses.

The utility model content

In order to overcome the deficiencies in the prior art, the purpose of this utility model is to provide a kind of more compact structure, impacts the higher angular tool of transmission efficiency.

For achieving the above object, the utility model provides a kind of portable angular tool, comprise: housing, place the motor and the transmission mechanism of enclosure interior, transmission mechanism comprises the drive link that extends along fore and aft axis X, the impact assembly that the main shaft that extend perpendicular to the Y-axis of X-axis on the edge links to each other with main shaft, and output shaft, be located at first driving member and second driving member engagement that is located at main shaft one end of an end of drive link, be located at the gears engaged on the motor output shaft of the pinion of the other end of drive link and motor, it is characterized in that: on Y direction, impact assembly and main shaft are positioned at a side of second driving member, and the fore and aft axis X of drive link is positioned at the opposite side of second driving member.

For achieving the above object, the utility model provides a kind of portable angular tool, comprise: a kind of portable angular tool, comprise: housing, place the motor and the transmission mechanism of enclosure interior, transmission mechanism comprises the drive link that extends along fore and aft axis X, the impact assembly that the main shaft that extend perpendicular to the Y-axis of X-axis on the edge links to each other with main shaft, and output shaft, be located at first driving member and second driving member engagement that is located at main shaft one end of an end of drive link, be located at the gears engaged on the motor output shaft of the pinion of the other end of drive link and motor, it is characterized in that: on Y direction, impact assembly and main shaft are positioned at a side of second driving member, and first driving member on the drive link is engaged with at the opposite side of second driving member.

The beneficial effect that the utility model reached:

Angle of the present utility model impact power tool, first driving member on the gear-driving rod and second driving member on the described main shaft have been saved the space away from the engagement of a side of impact block, make more compact structure.And the impact structure that angle impact electric screw is criticized directly acts on the output shaft, and efficient is higher, and torsion is bigger.

Description of drawings

Fig. 1 is the structural representation that screwdriver is impacted at existing angle;

Fig. 2 is the explosive view of the portable angular tool of a kind of first-selected embodiment of the present utility model;

Fig. 3 is the complete machine phantom of the utility model portable angular tool;

Fig. 4 is the structural representation of transmission mechanism shown in Figure 3;

Fig. 5 is the impact assembly of the utility model portable angular tool and the structural representation of output shaft;

Fig. 6 for transmission mechanism shown in Figure 3 around motor output shaft along the schematic diagram that turns clockwise 90 ° the time;

Fig. 7 is transmission mechanism shown in Figure 3 schematic diagram when the motor output shaft edge is rotated counterclockwise 90 °;

Fig. 8 is the housing parts schematic diagram of the utility model portable angular tool;

Fig. 9 is the switch module structural representation of the utility model portable angular tool;

Figure 10 is the switch module explosive view of the utility model portable angular tool.

Each token name is called among the figure:

1-motor 2-drive link 3-output shaft 4-main shaft 5-battery

The 6-power brick housing 7-switch module 8-pinion 9-first driving member 10-second driving member

11-spring 12-lining 13-impact block 14-hammer anvil 15-motor output shaft

16-steel ball 17-PCB plate 18-back-up ring 19-oil sealing 20-clutch shaft bearing

20 '-the pad 21-second bearing 22-the 3rd bearing 23-opening 24-electric weight indicator lamp

25-connects support 26-motor bearings 27-motor gear 31-first gearhousing

The 32-second gearhousing 33-gear-box bearing 71-speed regulator 72-ON/OFF switch

73-hollow cylinder 74-switch main body 75-allocating slot 76-speed governing toggle 77-switch spring

100-housing 101-first housing body 101 '-the second housing body

The specific embodiment

Below in conjunction with the specific embodiment, further set forth the utility model.

Shown in Fig. 2-7, the portable angular tool of a kind of first-selected embodiment of the present utility model comprises: housing 100, battery 5, the motor 1 that fixedly places the transmission mechanism in housing 100 internal upper part spaces and fixedly place central space in the housing 100.

The housing 100 of this angular tool comprises housing body 100 ' and power brick housing 6.The design of housing body 100 ' be two lobe formulas, comprise two can be involutory first housing body 101 and second housing body 101 ', after first housing body 101 and second housing body 101 ' involutory, its inner surface forms the space that can hold internals.The part of battery 5 is located in the power brick housing 6, constitutes power brick.Power brick be removably connected to housing body 100 ', when the two connects, the part that battery 5 exposes power brick housing 6 be arranged in housing body 100 ', it is the lower space that battery 5 is positioned at housing 100, motor 1 is between transmission mechanism and battery, and the outer surface smoother transition of power brick housing 6 and housing body 100 ' joint, the uniformity and the globality of assurance housing 100 profiles.

Those of ordinary skill in the art is readily appreciated that in other embodiments, housing can also have other structures and structure, and battery 5 also can be made and be fixed on the built-in of enclosure interior.

Transmission mechanism comprises along the drive link 2 of fore and aft axis X extension, along the main shaft 4 that extends perpendicular to the Y-axis of X-axis, impacts assembly and output shaft 3.The top of drive link 2 is provided with first driving member 9, and the bottom is provided with pinion 8.Motor 1 has motor output shaft 15, and motor gear 15 ' and pinion 8 engagement is arranged on the motor output shaft 15, described motor gear 15 ' and motor bearings 26 be positioned on the motor output shaft 15, motor 1 bottom is provided with and connects support 25.Motor gear 15 ' can directly be formed on the motor output shaft 15, also can be one independently gear be installed on the motor output shaft 15.Drive link 2 combines with pinion 8 by second bearing 21, the 3rd bearing 22 and pad.One end of main shaft 4 is provided with second driving member 10, and the other end is provided with impact block 13, impacts return mechanism and is set between the impact block 13 and second driving member 10, and a side of second driving member 10 is provided with clutch shaft bearing 20.Impact jockey by steel ball 16 and groove combination between impact block 13 and the main shaft 4 is connected.First-selected ground, this impacts return mechanism are that a compression spring 11 is sleeved on the main shaft 4, and in other embodiments, the impact return mechanism can also be the spring, magnetic devices of other adequate types etc., and its installation site also is not limited to be sleeved on the main shaft.First driving member 9 and second driving member, 10 first-selections all are helical gears.The number of teeth of gear ratio first driving member 9 of second driving member 10 is many, and the diameter of second driving member 10 is bigger than the diameter of first driving member 9.In other embodiments, first driving member and second driving member also can be the transmission combinations of worm and gear or bevel gear and bevel gear.Impact block 13 and main shaft 4 have common central axis Y.That side away from spring 11 of impact block 13 is provided with hammer anvil 14, and hammer anvil 14 links to each other with output shaft 3, and the output of output shaft 3 is provided with lining 12.

Impact assembly and comprise impact return mechanism, impact block 13, hammer anvil 14.First-selected ground impacts assembly and main shaft 4 central axis Y altogether.First driving member 9 on the drive link 2 and second driving member 10 on the main shaft 4 have effectively utilized the space of angular tool in impact block 13 these sides in the side engagement away from impact block 13, make more compact structure, have reduced machine dimensions.Drive link 2 rotatablely moves motor 1 output, first driving member 9 through drive link 2 tops passes to second driving member 10 on the main shaft 4, make the direction that rotatablely moves by X-direction rotation around drive link 2 places, be converted to around Y direction rotation along main shaft 4 places, impact jockey between main shaft 4 and the impact block 13 makes main shaft 4 drive impact block at the axial impact that produces along Y-axis when Y-axis is rotated, and rotary impact provides to output shaft 3 the most at last.By this set, the impact energy of impacting assembly is directly delivered on the output shaft 3, makes the impact torsion of angular tool bigger, operating efficiency is higher.

Hammer anvil 14 along Y-axis upwards by pad 20 ', back-up ring 18 is stuck in and realizes on the output shaft 3 and being connected of output shaft 3.Pad 20 ', be used to support hammer anvil 14 for middle metalwork with through hole.The pad first-selection is except through hole, and other parts are solid.Compare with being generally used for rotatably supported bearing, the metal pad is more shock-resistant.Lining 12 is arranged on the end of output shaft 3, can be used for holding and the removably fixing and adaptive various operation elements of this angle impact, first-selected ground, this angular tool are angle impact screwdrivers, the operation element first-selection is the screw screwdriver bit, and lining 12 is for being fit to the structure of clamping screw screwdriver bit.In other embodiments, lining can also be made the operation element structure that is fit to clamping impact wrench, percussion drill.

As a further improved embodiment of the utility model angular tool, transmission mechanism can rotate around the central axis Z of motor output shaft 15, and selectively stops and be fixed on primary importance, the second place and the 3rd position.Shown in Fig. 6,7, wherein with earlier drawings in identical numeral number represent with the front embodiment in identical member.The X-axis of drive link 2 is parallel to the Z axle of motor output shaft 15.Between this second place and the primary importance, between primary importance and the 3rd position on around the direction of Z axle rotation each 90 degree at interval.The transmission mechanism that shows among Fig. 5 is positioned on the primary importance, what Fig. 6 showed is that transmission mechanism primary importance from Fig. 5 is rotated counterclockwise the 90 degree arrival second places around the Z axle, and what Fig. 7 showed is that transmission mechanism primary importance from Fig. 5 turn 90 degrees arrival the 3rd position around the dextrorotation of Z axle.Between first, second, third position, rotate with respect to motor output shaft for the ease of transmission mechanism, the main body 100 of housing ' on above-below direction, be divided into 2 sections, the two junction be provided be rotatably connected part and fixture with realize housing body 100 ' relatively rotating and relative fixed between two-section up and down.Transmission mechanism by gear housing be fixed on housing body 100 ' the upper half in, motor 1 be fixed on housing body 100 ' following half in.During normal the use, transmission mechanism is in primary importance with respect to motor output shaft, whenever necessary, the user can by relative rotary shell main body 100 ' two-section up and down realize transmission mechanism relatively rotating with respect to motor output shaft.Fixture can realize housing body 100 ' two-section up and down at least in first, second, third locational relative fixed.Those of ordinary skills can expect that in other embodiments, transmission mechanism also can have only first and second positions or the first and the 3rd position with respect to motor output shaft.Connect the design of support 25, boss by connecting support 25 respectively with the groove fit on motor lower portion and battery top, make that three's connection is more firm, when screwdriver was impacted at the angle at the high speed oscillatory work, the electric energy of battery output can stably be transferred in the motor.

Referring to Fig. 2, in portable angular tool of the present utility model, gear-box is made up of three plate gear case shells, for about two (first gearhousing 31, second gearhousing 32) and bottom a slice (gear-box bearing 33).The gear-box bearing 33 of bottom holds the pinion 8 on motor output shaft, the drive link.Gear-box bearing 33 separates with first gearhousing 31, second gearhousing 32 that hold drive link, first and second driving member, impact returning spring, impact block, lining and output shaft, is convenient to make moulding.Gear-box material metal preferably simultaneously is so that heat radiation and keep good assembly precision.

The close main shaft of switch module of the present utility model also is arranged in fuselage integral upper 1/2 to 2/3 length range.Preferably, switch module is arranged in top 1/2 length of housing 100, or the center line Y-axis that is arranged at main shaft 4 to the length of housing 100 bottom surfaces 1/2 in.

Switch module of the present utility model comprises speed regulator 71, switch main body 74, ON/OFF switch 72, hollow cylinder 73.Wherein, speed regulator 71 and ON/OFF switch 72 are electrically connected with a pcb board 17, and first-selected are set directly on the pcb board.Also be provided with other control circuits of instrument on the first-selected ground pcb board 17.Pcb board 17 is an elongated shape, and its two ends are fixed in the housing by the outstanding muscle of shell inner surface.In housing, pcb board 17 does not need to be exclusively used in the case of pcb board, is that pcb board 17 is to be set directly in the housing 100 yet.In the present embodiment, pcb board 17 is the single piece type structure, in other embodiments, can also be arranged to two-section or three-sectional structure up and down.Have allocating slot 75 on the switch main body, the speed governing toggle 76 of speed regulator is arranged in allocating slot 75, presses or trip switch main body top can be controlled allocating slot 75 and drives speed governing toggles 76 and slide on speed regulator 71, to realize different motor output speeds.Dial and turn round 76 for ease of seeing allocating slot 75 and speed governing clearly, Fig. 9 shows is that speed governing is dialled and turned round 76 and be not contained in the allocating slot 75.Switch main body 74 lower ends have hollow cylinder 73, passing hollow cylinder 73 by screw is rotatably connected switch main body and housing, switch main body the latter half cooperates with the ON/OFF switch, presses or the trip switch lower body part can be controlled the triggering of ON/OFF switch.A switch spring 77 is arranged between switch main body 74 and the PCT plate 17, when operator's trip switch main body it is resetted.When the upper and lower that the operator presses switch main body simultaneously, switch main body triggers ON/OFF switch and speed regulator simultaneously, and screwdriver work is impacted at the angle.When the bottom of careless touch switch main body or top, then only press the ON/OFF switch, perhaps only press the speed governing toggle, the angle is impacted screwdriver and is not all worked, with the danger that prevents that maloperation from bringing.

Switch module is arranged the circuit structure in traditional switch box structure to pcb board, overcome the conventional switch box and taken shortcoming than large space,, more save space in the fuselage, the housing that makes the switch module present position be basically perpendicular to spools to footpath the littler of size that make progress.Simultaneously arranging of switch module can make the more close working head of switch main body, thereby makes main gripping position be positioned at the last 1/2 of fuselage, and more close working head makes the user that the control sense more be arranged when operation, also makes machine more steady when working.Simultaneously, tiger grips the position and is designed to the concave surface moulding, and order grips more comfortable.

In the utility model, the electric weight display lamp 24 that screwdriver is impacted at the angle is positioned at the fuselage rear side by following, face the operator during use, and by under the display lamp position make the user at the back that is gripped near arc, when being gripped on the bottom of fuselage when maybe needing to stretch into narrow working region, all can not shelter from the electric weight display lamp because of gripping.

The head that screwdriver is impacted at angle of the present utility model all has opening 23 on the housing of the left and right sides, expose the metal-toothed roller box shell of casing inside, makes the heat radiation of gear-box better.

More than show and described basic principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.

Claims

1. portable angular tool, comprise: housing (100), place the motor (1) and the transmission mechanism of enclosure interior, described transmission mechanism comprises the drive link (2) that extends along fore and aft axis X, impact assembly and output shaft (3) that the main shaft (4) that extend perpendicular to the Y-axis of X-axis on the edge links to each other with described main shaft (4), be located at first driving member (9) and second driving member (10) engagement that is located at main shaft (4) one ends of an end of described drive link (2), be located at gear (15 ') engagement on the motor output shaft (15) of pinion (8) and described motor (1) of the other end of described drive link (2), it is characterized in that: on described Y direction, described impact assembly and main shaft are positioned at a side of described second driving member (10), and the fore and aft axis X of described drive link (2) is positioned at the opposite side of described second driving member (10).

2. portable angular tool according to claim 1 is characterized in that: described first driving member (9) and second driving member (10) are helical gears.

3. portable angular tool according to claim 1 is characterized in that: described impact assembly and described main shaft (4) be Y-axis altogether.

4. portable angular tool according to claim 1, it is characterized in that: described transmission mechanism is positioned at the upper space of described housing, described motor (1) is positioned at the central space of described housing, and one is positioned at described lower part of frame space for the battery of described motor power supply.

5. portable angular tool according to claim 4 is characterized in that described battery is removably connected to described housing.

6. according to each described portable angular tool among the claim 1-5, it is characterized in that: the lining (12) that the operation element that is used to hold this angular tool is housed on the described output shaft.

7. portable angular tool according to claim 6 is characterized in that, described operation element is the screw screwdriver bit.

8. portable angular tool according to claim 6, it is characterized in that: described impact assembly comprises impact block (13), the impact return mechanism between described second driving member and described impact block, the hammer anvil (14) that is contained on the described main shaft (4), and wherein said hammer anvil (14) links to each other with described output shaft (3).

9. according to each described portable angular tool among the claim 1-5, it is characterized in that: the motor output shaft of described motor has central axis Z, and described Z axle is parallel to the X-axis of described drive link.

10. portable angular tool according to claim 9 is characterized in that: described transmission mechanism has the primary importance and the second place at least with respect to described motor output shaft, and described first and second positions are rotary middle spindle 90 degree at interval with described Z axle.