CN202317258U - Electric chain saw - Google Patents
Electric chain saw Download PDFInfo
- Publication number
- CN202317258U CN202317258U CN2011204295780U CN201120429578U CN202317258U CN 202317258 U CN202317258 U CN 202317258U CN 2011204295780 U CN2011204295780 U CN 2011204295780U CN 201120429578 U CN201120429578 U CN 201120429578U CN 202317258 U CN202317258 U CN 202317258U
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- China
- Prior art keywords
- transmission shaft
- power transmission
- motor
- chain
- joystick
- 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 relates to an electric chain saw, comprising a motor, shells, a chain wheel, a chain plate, a saw chain, a storage battery, a front handle, a control handle, a control switch, a handle guard board, and an oiling device. The electric chain saw is characterized in that a transmission mechanism between a rotating shaft of the motor and the chain wheel comprises a transmission shaft and two ball bearings; the two ball bearings are fixed at an upper shell and a lower shell respectively; the upper end of the transmission shaft passes through the ball bearing at the upper shell and is matched and connected with the rotating shaft of the motor in a spline way; the lower end of the transmission shaft passes through the ball bearing at the lower shell at first and then passes through a rectangular through hole on the central part of the chain wheel; the part of the transmission shaft passing out of the central hole of the chain wheel is provided with threads; and a fixed nut is screwed with the lower end of the transmission shaft for fixing. Although the transmission mechanism between the rotating shaft of the motor and the chain wheel is simple, the power transmission is very reliable, the assembling is convenient and fast, the failure rate is very low, and the mechanical transmission noise is reduced obviously. The parameters of the motor are adjusted to meet the requirements of the normal service of chain saws of different specifications.
Description
Technical field
The utility model relates to a kind of electric tool, especially for a kind of be the electric chain saw of power source with the battery.
Background technology
Chain saw is divided with power mode at present, be divided into fuel oil chain saw and electric chain saw, and motor is pollution-free with it, noise is low; Use easy to operate; Characteristics such as freedom from repairs are more and more favored by the user, and in many specific occasions, electric chain saw has much the trend that replaces traditional fuel oil chain saw.The prior electric chain saw can further be divided into AC electrical chain saw and direct-flow storage battery electric chain saw with power supply mode; The AC electrical chain saw requires the operation area that AC power can be provided; Its use occasion receives very big restriction, uses principal mode so the direct current drive chain saw that the battery mode is supplied power progressively becomes electric chain saw.The prior electric chain saw is connected motor rotation axis through a transmission mechanism usually with sprocket wheel, this transmission mechanism is generally a gear train, just because of exist gear drive, makes the complex structure of complete machine, the weight increase.The prior electric chain saw also has directly motor rotation axis is connected with sprocket wheel, still, motor rotation axis how accurately with the sprocket wheel assembling of chain saw? Also will remain running in the use steadily, this is still the technical barrier that needs solve.
Summary of the invention
The purpose of the utility model is, a kind of novel structure design of electric chain saw is provided, make motor can with the sprocket wheel of chain saw between with a kind of not only simply but also reliably version be connected, simultaneously, other part of electric chain saw is made corresponding improvement.
For realizing above-mentioned purpose; The technical scheme of the utility model is; This electric chain saw formation includes motor, housing, sprocket wheel, carrier bar, saw chain, battery, front handlebar, joystick, gauge tap, handle backplate, oiling device, and it is characterized in that: the transmission mechanism between motor rotation axis and the sprocket wheel is a power transmission shaft and two ball bearings, and two ball bearings are individually fixed in upper shell and lower house; The upper shell ball bearing is passed in this power transmission shaft upper end; The power transmission shaft upper end is the keyway mode with motor rotation axis and is connected, and the power transmission shaft lower end is then passed the lower house ball bearing earlier, passes centre of sprocket position rectangular through-hole again; Power transmission shaft passes the screw thread that is partly with in centre of sprocket hole, and hold-doun nut and power transmission shaft bottom are screwed fixing.
In technique scheme, said joystick is a straight-bar type, and gauge tap is arranged at this joystick, and joystick is fixed in lower house through top board.The joystick end is provided with socket, is inserted in this socket from the plug of battery.
The advantage of the utility model is:
1, the utility model motor rotation axis directly is connected with the chain saw sprocket wheel through a power transmission shaft, and makes this drive shaft axis with the motor rotation axis axis and the sprocket rotation center line is three-way overlaps through two location bearings.The location bearing at power transmission shaft two ends be separately fixed in the upper shell with lower house in; The machining accuracy of upper shell and lower house guaranteed the positioning accuracy of location bearing up and down, thereby guaranteed the vertical installation accuracy between power transmission shaft and motor rotation axis and the sprocket wheel three.The power transmission is reliable, and easy to assembly, fault rate is extremely low, has also reduced mechanically operated noise simultaneously.
2, owing to adopted simple and reliable power transmission arrangment, saved traditional gear drive, thereby alleviated the weight of transmission mechanism.
3, the utility model adjustment parameter of electric machine, thus satisfied the normally needs of use of chain saw.
Description of drawings
Fig. 1 is the utility model machine shape figure.
Fig. 2 is the utility model structure installation diagram.
Fig. 3 is a syndeton sketch map between the utility model motor rotation axis and the power transmission shaft.
Fig. 4 is a syndeton sketch map between the utility model power transmission shaft and the sprocket wheel.
In the above-mentioned accompanying drawing, the 1st, motor, the 2nd, upper shell, the 3rd, upper bearing (metal), 3 ' be lower bearing; The 4th, power transmission shaft, the 5th, joystick pressing plate, the 6th, joystick, the 7th, lower house, the 8th, sprocket wheel; The 9th, hold-doun nut, the 10th, case, the 11st, handle, the 12nd, oil gun, the 13rd, oil box; The 14th, oil gun pressing plate, the 15th, handle backplate, 16 backplate fixed heads, the 17th, saw chain, the 18th, carrier bar.
The specific embodiment
Embodiment: the face shaping of present embodiment is shown in accompanying drawing 1, and the present embodiment structure is assembled shown in accompanying drawing 2.
The power of present embodiment is from motor 1; Power drive mechanism between motor 1 turning cylinder and the sprocket wheel 8 is by a power transmission shaft 4 and two ball bearings 3 and 3 ' constitute; Upper bearing (metal) 3 is fixed in upper shell 2, and power transmission shaft 4 tops pass upper bearing (metal) 3, and the upper end of power transmission shaft 4 has notch; When motor 1 was fixed in upper shell 2, the protruding key of motor rotation axis termination just in time was inserted in the groove of power transmission shaft 4 upper ends (referring to accompanying drawing 3).Lower bearing 3 ' then be fixed in lower house 7; Power transmission shaft 4 bottoms pass lower bearing 3 ' with lower house 7, power transmission shaft 4 bottoms are rectangular cylinder and are threaded (referring to accompanying drawing 4), the rectangular through-hole at this rectangular cylinder contour shape and sprocket wheel 8 middle parts is identical; Like this; Power transmission shaft 4 bottoms pass sprocket wheel 8 through holes, and hold-doun nut 9 is screwed in power transmission shaft 4 bottom screw threads, and sprocket wheel 8 is fixedly connected with power transmission shaft 4.Carrier bar 18 is fixed in lower house 7, and saw chain 17 is installed on carrier bar 18 and sprocket wheel 8.Case 10 is fixed in lower house 7, and case 10 covers sprocket wheel 8 on the one hand, with the protection operator safety.
The joystick of present embodiment is a straight-bar type, and gauge tap is arranged at this joystick 6, and joystick is fixed in lower house 7 through top board 5.Joystick 6 ends are provided with socket, are inserted in this socket from the plug of battery.
One end of the front handlebar 11 of present embodiment is fixed in upper shell 2, and the other end is fixed in lower house 7, and backplate is positioned at the place ahead of front handlebar 11.
The oil gun 12 of present embodiment and oil box 13 all are fixed between upper shell and the lower house, and oil gun pressing plate 14 is fixed in (the position A in the accompanying drawing 2) on the lower house 7 with oil gun, and oil gun one end connects oil box, and the other end connects lower house 7 (the position B in the accompanying drawing 2).
Before the use, need unload lower encioser 10 earlier, unclamp hold-doun nut 9; The central through hole of sprocket wheel 8 is passed in the bottom of power transmission shaft 4, add packing ring again and tighten, carrier bar 18 is installed on lower house 7 outer side panels with hold-doun nut 9; Saw chain 17 is sleeved on carrier bar 18 and the sprocket wheel 8; Regulate the chain Board position, make saw chain 17 suitable tensionings, at last case 10 is installed on lower house 7.
Claims (2)
1. electric chain saw; Its formation includes motor, housing, sprocket wheel, carrier bar, saw chain, battery, front handlebar, joystick, gauge tap, handle backplate, oiling device; It is characterized in that: the transmission mechanism between motor rotation axis and the sprocket wheel is a power transmission shaft and two ball bearings; Two ball bearings are individually fixed in upper shell and lower house, and the upper shell ball bearing is passed in this power transmission shaft upper end, and the power transmission shaft upper end is the keyway mode with motor rotation axis and is connected; The power transmission shaft lower end is then passed the lower house ball bearing earlier; Pass centre of sprocket position rectangular through-hole again, power transmission shaft passes the screw thread that is partly with in centre of sprocket hole, and hold-doun nut and power transmission shaft bottom are screwed fixing.
2. electric chain saw according to claim 1; It is characterized in that: said joystick is a straight-bar type, and gauge tap is arranged at this joystick, and joystick is fixed in lower house through top board; The joystick end is provided with socket, is inserted in this socket from the plug of battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204295780U CN202317258U (en) | 2011-11-03 | 2011-11-03 | Electric chain saw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204295780U CN202317258U (en) | 2011-11-03 | 2011-11-03 | Electric chain saw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202317258U true CN202317258U (en) | 2012-07-11 |
Family
ID=46429255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204295780U Expired - Fee Related CN202317258U (en) | 2011-11-03 | 2011-11-03 | Electric chain saw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202317258U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102389995A (en) * | 2011-11-03 | 2012-03-28 | 侯巧生 | Electric chain saw |
-
2011
- 2011-11-03 CN CN2011204295780U patent/CN202317258U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102389995A (en) * | 2011-11-03 | 2012-03-28 | 侯巧生 | Electric chain saw |
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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: 20120711 Termination date: 20141103 |
|
| EXPY | Termination of patent right or utility model |