CN201969949U

CN201969949U - Chain saw

Info

Publication number: CN201969949U
Application number: CN201120005905XU
Authority: CN
Inventors: 张锦飞
Original assignee: Nanjing Chervon Industry Co Ltd
Current assignee: Nanjing Chervon Industry Co Ltd
Priority date: 2011-01-06
Filing date: 2011-01-06
Publication date: 2011-09-14
Anticipated expiration: 2021-01-06

Abstract

The utility model relates to a chain saw, which is driven by a battery pack and comprises a casing and a chain plate. The casing consists of a front handle, a rear handle, a motor casing, a motor, a transmission mechanism, a sprocket and a chain, the motor is mounted in the motor casing, the transmission mechanism is driven by the motor, the sprocket is driven by the transmission mechanism, the chain is mounted on the chain plate and the sprocket, a cavity is formed between the motor casing and the rear handle on the casing, and the battery pack is mounted in the cavity. By the aid of the scheme, the chain saw is compact in structure, and an operator can operate devices conveniently.

Description

Chain saw

Technical field

The utility model relates to a kind of chain saw.

Background technology

Existing chain saw is well known, and power brick is installed in the grip, back usually, and such mechanism power brick on the one hand can produce interference to the operator, and the overall structure of utensil is also bigger than normal on the other hand.

Summary of the invention

The problem that the utility model solves provides a kind of chain saw that the operator is not produced interference and compact conformation.

For addressing the above problem, the chain saw that the utility model provides comprises housing and Chain plate, described housing comprises a front handlebar, a back handle and an electric machine casing, a motor that is installed in the electric machine casing, one by motor-driven transmission mechanism, a sprocket wheel that is driven by transmission mechanism, a chain that is installed on Chain plate and the sprocket wheel, form a cavity on the housing between electric machine casing and the back handle, power brick is installed in the cavity

By such scheme, chain saw compact conformation of the present utility model, operator's utensil that is convenient to operation.

Description of drawings

Fig. 1 is the stereogram of the utility model chain saw;

Fig. 2 is that the utility model chain saw is removed partial shell and demonstrated the stereogram of output shaft;

Fig. 3 is that the utility model chain saw is removed partial shell and demonstrated motor and the vertical view of transmission mechanism;

Fig. 4 is the explosive view of the utility model chain saw motor and transmission mechanism;

Fig. 5 is that existing chain saw is removed partial shell and demonstrated motor and the vertical view of transmission mechanism;

Fig. 6 is the stereogram that the utility model chain saw is removed the power brick part;

Fig. 7 is the front view of the utility model chain saw power brick;

Fig. 8 is the left view of power brick among Fig. 7.

The specific embodiment

As shown in Figure 1, chain saw 100 of the present utility model comprises a housing 1 and Chain plate 7.Form one longly to axis X on direction in the length of chain saw 100, housing 1 comprises handle 3 and an electric machine casing 5 behind the front handlebar 2, one, front handlebar 2 roughly be positioned at electric machine casing 5 directly over.Switch 4 is installed in handle 3 places, back, can console switch 4 when the operator grips back handle 3.Safety guard 6 is installed on the housing 1 and is positioned at the front end of front handlebar 2.A power source, be that power brick 9 can be installed in handle 3 places, back, for the center of gravity reach as far as possible that makes utensil, power brick 9 preferably is installed between electric machine casing 5 and the back handle 3, power brick 9 has a center line Q, the length of the preferably vertical and chain saw 100 of center line Q is to axis X. and in addition, the power source of the utility model chain saw also can be other power source, as alternating current etc.

Shown in Fig. 2,3 and 4, a motor 10 is installed in the electric machine casing 5, motor 10 has a motor output shaft, a gear 11 is installed on the motor output shaft, motor output shaft is formed with an electrical axis O, and the length of electrical axis O and chain saw 100 is preferably orthogonal to axis X, and the center line Q. motor 10 of parallel and power brick 9 drives a transmission mechanism, transmission mechanism has an output shaft 18a, and a chain 19 is installed on the output shaft 18a.Be formed with a sliding tray 7a on the Chain plate 7, an alignment pin 20 is installed on the housing 1, Chain plate 7 is slidably mounted on the alignment pin 20 by the sliding tray 7a on it, and chain 8 is installed on chain 19 and the Chain plate 7.Motor 10 upper gear boxs that are installed to that transmission mechanism comprises hollow overlap 13, one ring gears 12 that are fixedly installed in the transmission housing-case 13, and are installed to first planetary gears and second planetary gears in the ring gear 12.First planetary gears comprises a planet carrier 15, a series ofly is pivotally mounted to planet carrier 15 1 side upper

planetary gear

14a, 14b, 14c, 14d and 14e and is fixedly installed to gear 16 on planet carrier 15 opposite sides, gear 11 engagements on

planetary gear

14a, 14b, 14c, 14d and 14e and the motor output shaft.Second planetary gears comprises a planet carrier 18, a series of rotation and is installed to planet carrier 18 1 side upper

planetary gear

17a, 17b, 17c, 17d and 17e and is fixedly installed to output shaft 18a on planet carrier 18 opposite sides.Gear 16 engagements of

planetary gear

17a, 17b, 17c, 17d and 17e and first planetary gears.Output shaft 18a is formed with an axis, and this axis and electrical axis are same axis, i.e. electrical axis O, and like this, the position of motor 10 will be near the front end of housing 1 on the one hand, thus the center of gravity of utensil will be near the front end of housing 1; Motor 10 separates certain distance with power brick 9 on the other hand, reduces the heat radiation of 10 pairs of power brick 9 of motor as far as possible.Because this planet carrier mechanism is very familiar to those skilled in the art, is not described in detail at this.In addition, gear 16 can be integrally formed with planet carrier 15, and output shaft 18a also can be integrally formed with planet carrier 18.When operator's starting switch 4, gear 11 on motor 10 output shafts drives first planetary gears and rotates in ring gear 12, the gear 16 of first planetary gears drives second planetary gears and rotates in ring gear 12, the output shaft 18a of second planetary gears drives chain 19 and rotates, thereby chain 8 is realized the sawing campaign.

As shown in Figure 5, Fig. 5 has shown transmission mechanism commonly used on the present chain saw.Motor 10 ' has an electrical axis O ', the gear of installing on its output shaft 11 ' is installed with gear 14 ' on the output shaft 18 ', output shaft 18 ' has an axis P, gear 11 ' meshes with the gear 14 ' of output shaft 18 ', thereby drives output shaft 18 ' rotation.Present chain saw, electrical axis O ' be away from the front end of housing 1, and motor 10 ' is away from the front end of housing 1, make that the utensil center of gravity is leaned on after, when operation utensil, be easy to generate " resilience ".In addition, such structure, motor will be near power brick 9 ', the heat of motor 10 ' can radiation be given power brick 9 ' when work, because power brick 9 ' this just heating when work, add the heat of motor 10 ' radiation, will influence the safe handling of power brick 9 ', also be unfavorable for the service life of power brick 9 ' simultaneously.

Shown in Fig. 1,6,7 and 8, on housing 1, zone between the handle 3 is formed with in a cavity 21. cavitys 21 to be formed with on the direction of the center line Q of power brick 9 on 22,23 and locking slot 27. power brick 9 of a pair of leading arm on the direction of heart line Q wherein and is formed with a pair of gathering

sill

24,25 at electric machine casing 5 and back, also is formed with an operating parts 26a and locking member 26b on the power brick 9.By gathering

sill

24,25, power brick 9 can be slidably mounted on the leading

arm

22,23 along the direction of the center line Q of power brick 9, and by operating operation spare 26a, locking member 26b and locking slot 27 engagements, power brick 9 is installed in the cavity 21, because the installing mechanism of power brick is known by those skilled in the art, is not described in detail at this.Power brick 9 has a lower surface 9a, housing 1 has a lower surface 1a, handle 3 has a lower surface 3a, when power brick 9 is installed in the cavity, as required, the lower surface 9a of power brick 9 can be positioned at same plane with the lower surface 3a of handle 3, also can be positioned at same plane with the lower surface 1a of housing 1.With respect to existing power brick be installed in the back handle 3 lower surface 3a on structure, the utility model is by forming the cavity 21 that power brick 9 is installed between back handle 3 and electric machine casing 5, can prevent the interference of 9 couples of people of power brick in the process of operation utensil on the one hand, make that on the other hand the overall dimensions of this utensil is less than normal.Because transmission mechanism of the present utility model is a planetary gears, the reach of motor 10 makes that having enough spaces to form at electric machine casing 5 with back handle 3 holds the cavity of power brick 9, thereby makes that the structure of this utensil is compact more in addition.In addition, power brick 9 also can be installed in the cavity 21 by alternate manner, as directly installing or the like by screw.

Only be wherein several specific embodiment of the present utility model shown in description above and the accompanying drawing, the claimed scope of the utility model is based on claims.By to above describing and the understanding of accompanying drawing, those of ordinary skill in the art is by same mode, and perhaps with through simple form of replacing, non-creativeness ground is simply replaced partial component and is regarded as in the scope that the utility model is protected.

Claims

1. chain saw that drives by power brick, comprise housing and Chain plate, described housing comprises a front handlebar, a back handle and an electric machine casing, a motor that is installed in the electric machine casing, one by described motor-driven transmission mechanism, a sprocket wheel that is driven by transmission mechanism, a chain that is installed on Chain plate and the sprocket wheel, it is characterized in that form a cavity on the housing between described electric machine casing and the described back handle, described power brick is installed in the described cavity.

2. chain saw as claimed in claim 1 is characterized in that described power brick is slidingly mounted in the described cavity.

3. chain saw as claimed in claim 2 is characterized in that described motor has an output shaft, and described output shaft forms an electrical axis, the parallel and described electrical axis of the glide direction of described power brick.

4. as claim 1 or 2 or 3 described chain saws, it is characterized in that described battery is surrounded by a lower surface, described back handle has a lower surface, the lower surface coplane of the lower surface of described power brick and described back handle.

5. as claim 1 or 2 or 3 described chain saws, it is characterized in that described battery is surrounded by a lower surface, described housing has a lower surface, the lower surface coplane of the lower surface of described power brick and described housing.

6. as claim 1 or 2 or 3 described chain saws, it is characterized in that described transmission mechanism is a planetary gears.

7. chain saw as claimed in claim 6 is characterized in that, described planetary gears comprises by motor-driven first planetary gear construction and second planetary gears that driven by first planetary gears.