CN202861958U - Carbon brush composite device for angle grinder - Google Patents
Carbon brush composite device for angle grinder Download PDFInfo
- Publication number
- CN202861958U CN202861958U CN 201220522419 CN201220522419U CN202861958U CN 202861958 U CN202861958 U CN 202861958U CN 201220522419 CN201220522419 CN 201220522419 CN 201220522419 U CN201220522419 U CN 201220522419U CN 202861958 U CN202861958 U CN 202861958U
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- CN
- China
- Prior art keywords
- carbon brush
- spring
- cylindrical shell
- breach
- composite device
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- Expired - Lifetime
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Abstract
The utility model discloses a carbon brush composite device for an angle grinder. The carbon brush composite device comprises a carbon brush, a carbon brush frame and a spring. The carbon brush frame comprises a barrel body and a pressing cover which is arranged above the barrel body. The carbon brush and the spring are arranged in the barrel body. A notch is formed in at least one face of the barrel body. At least one limiting piece is fixedly connected with the notch. The spring is a helical coil type spring. The carbon brush composite device for the angle grinder has a function of automatic stop, and has the advantage of being low in cost.
Description
Technical field
The utility model relates to field of power tools, particularly a kind of carbon brush composite set for the angle grinding machine.
Background technology
The angle grinding machine is a kind of important electric tool that utilizes the disc wheel of High Rotation Speed and elastic grinding wheel, wire wheel etc. that hardware is carried out grinding, cutting, rust cleaning, polishing processing, and carbon brush also is an important component part on the grinding machine of angle, it is the device of transferring energy or signal between the standing part of motor or generator or other rotating machineries and the rotating part, be stuck on the metallic support, there is spring handle the inside, and it is pressed in the rotating shaft.
As shown in Figure 1; existing carbon brush generally is comprised of parts such as carbon brush holder 1, spring 2 and carbon brush 3; be glanded compression after spring 2 precommpression; the carbon brush 3 that is connected with spring 2 is after using, and spring 2 also descends thereupon and touches engine commutator, thereby is involved in wherein; because spring 2 is made by metal material; be involved in the short circuit and the shutdown that tend to cause machine behind the engine commutator, even with bad machine, affect service efficiency and cause damage.
Also have on the market some to have now so that the electronic carbon brush of spring automatic stop function, but the general cost of this kind carbon brush is higher, and is difficult for producing and using, for the general medium-sized and small enterprises of economic conditions, generally can not use.
The utility model content
The purpose of this utility model is exactly for the problems referred to above, and a kind of have automatic stop function and the carbon brush composite set that is used for the angle grinding machine with low cost are provided.
To achieve these goals, the utility model provides following technical scheme: a kind of carbon brush composite set for the angle grinding machine, comprise carbon brush, carbon brush holder and spring, the gland that this carbon brush holder comprises a cylindrical shell and is arranged at this cylindrical shell top, this carbon brush and this spring are arranged in the cylindrical shell, this cylindrical shell at least the one side on offer a breach, be fixedly connected with at least one limited block on this breach; This spring is spiral helicine rolling spring.
Preferably, above-mentioned breach is square breach.
Preferably, above-mentioned limited block is connected in the bottom of breach, and extends to the inside of cylindrical shell.
Preferably, above-mentioned cylindrical shell is square column cylindrical shell or cylindrical tube.
Adopt the beneficial effect of above technical scheme to be: having adopted at cylindrical shell for the defective of existing equipment is that at least one side of carbon brush holder is offered breach, and at this breach limited block is set, so that the upper-lower position of spring is fixed, after even the carbon brush of spring below is finished like this, spring can not touch the engine commutator of below yet, the angle grinding machine guaranteed the use safety of engine commutator, so that can continue normal operation; This kind structure only need to be on existing equipment be transformed a little and get final product, produces simply, and cost and cheap still but can arrive the function that the brush that has on the market the automatic stop function has equally.
Description of drawings
Fig. 1 is the structural representation of carbon brush configuration in the prior art.
Fig. 2 is that a kind of carbon brush composite set for the angle grinding machine of the present utility model is at the structural representation of embodiment 1.
Fig. 3 is that a kind of carbon brush composite set for the angle grinding machine of the present utility model is at the side sectional view of embodiment 1.
Wherein, 1. carbon brush holder 11. cylindrical shells 12. glands 2. springs 3. carbon brush 4. limited blocks 5. breach.
The specific embodiment
Describe preferred embodiment of the present utility model in detail below in conjunction with accompanying drawing.
Embodiment 1
Such as Fig. 2, shown in Figure 3, the carbon brush composite set that is used for the angle grinding machine in the present embodiment comprises carbon brush 3, carbon brush holder 1 and spring 2, the gland 12 that this carbon brush holder 1 comprises a cylindrical shell 11 and is arranged at this cylindrical shell top, this carbon brush 3 and this spring 2 are arranged in the cylindrical shell 11, the upper end of spring 2 is connected with gland 12, this spring 2 is spiral helicine rolling spring, spring 2 is done precommpression in use, gland 12 pressing springs 2, the bottom of spring 2 is connected with carbon brush 3, offer a breach 5 on one side of this cylindrical shell 11, be fixedly connected with a limited block 4 on this breach 5, breach 5 and limited block 4 can be lived the spatial constraints that moves up and down of spring 2 effectively, prevent that spring 2 from continuing to move downward and be involved in the engine commutator after carbon brush 3 is finished.
In the preferred scheme of present embodiment, above-mentioned breach 5 can be offered and be square breach, the convenient processing of this kind breach, and the space that moves up and down that also can effectively limit spring 2, the breach into other shapes can certainly be offered, the same purpose can be reached equally.
In the preferred scheme of present embodiment, above-mentioned limited block 4 can be connected in the bottom of breach 5, and extend to the inside of cylindrical shell 11, can help effectively to limit the space that moves up and down of spring 2.
In the preferred scheme of present embodiment, can be square column cylindrical shell or cylindrical tube with above-mentioned cylindrical shell 11, this need to select according to the shape of carbon brush, can certainly be other shapes, need to look use and need to make change.
Embodiment 2
Other are identical with embodiment 1 described content, and difference is: in order reaching spring 2 better spacing purposes, to have offered simultaneously breach 5 at two faces of cylindrical shell 11, and respectively be connected with two limited blocks 4 on breach 5.
The below introduces operation principle of the present utility model:
Spring 2 is done precommpression during use, gland 12 pressing springs 2, carbon brush 3 also just consumes gradually when the engine commutator that contacts with carbon brush 3 rotates, because the limited block 4 on the cylindrical shell 11 and breach 5 are limited to position away from engine commutator effectively with spring 2, spring 2 can not continue descending damage engine commutator, so that spring 2 automatic stops, guaranteed the use safety of engine commutator, so that the angle grinding machine can continue normal operation.
Adopt the beneficial effect of above technical scheme to be: having adopted at cylindrical shell for the defective of existing equipment is that at least one side of carbon brush holder is offered breach, and at this breach limited block is set, so that the upper-lower position of spring is fixed, after even the carbon brush of spring below is finished like this, spring can not touch the engine commutator of below yet, the angle grinding machine guaranteed the use safety of engine commutator, so that can continue normal operation; This kind structure only need to be on existing equipment be transformed a little and get final product, produces simply, and cost and cheap still but can arrive the function that the brush that has on the market the automatic stop function has equally.
The utility model other NM contents are all can be learnt in the prior art, does not therefore repeat them here.
Above-described only is preferred embodiment of the present utility model; should be pointed out that for the person of ordinary skill of the art, under the prerequisite that does not break away from the utility model creation design; can also make some distortion and improvement, these all belong to protection domain of the present utility model.
Claims (4)
1. carbon brush composite set that is used for the angle grinding machine, comprise carbon brush, carbon brush holder and spring, it is characterized in that: the gland that described carbon brush holder comprises a cylindrical shell and is arranged at described cylindrical shell top, described carbon brush and described spring are arranged in the described cylindrical shell, described cylindrical shell at least the one side on offer a breach, be fixedly connected with at least one limited block on the described breach; Described spring is spiral helicine rolling spring.
2. carbon brush composite set according to claim 1, it is characterized in that: described breach is square breach.
3. carbon brush composite set according to claim 1 and 2, it is characterized in that: described limited block is connected in the bottom of described breach, and extends to the inside of described cylindrical shell.
4. arbitrary described carbon brush composite set according to claim 1-3, it is characterized in that: described cylindrical shell is square column cylindrical shell or cylindrical tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220522419 CN202861958U (en) | 2012-10-12 | 2012-10-12 | Carbon brush composite device for angle grinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220522419 CN202861958U (en) | 2012-10-12 | 2012-10-12 | Carbon brush composite device for angle grinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202861958U true CN202861958U (en) | 2013-04-10 |
Family
ID=48028714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220522419 Expired - Lifetime CN202861958U (en) | 2012-10-12 | 2012-10-12 | Carbon brush composite device for angle grinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202861958U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103722461A (en) * | 2012-10-12 | 2014-04-16 | 江苏铁锚工具有限公司 | Carbon brush combination device for angle grinder |
-
2012
- 2012-10-12 CN CN 201220522419 patent/CN202861958U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103722461A (en) * | 2012-10-12 | 2014-04-16 | 江苏铁锚工具有限公司 | Carbon brush combination device for angle grinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130410 |
|
| CX01 | Expiry of patent term |