CN203110153U - Stone cutting machine reliable in sealing - Google Patents
Stone cutting machine reliable in sealing Download PDFInfo
- Publication number
- CN203110153U CN203110153U CN 201320019277 CN201320019277U CN203110153U CN 203110153 U CN203110153 U CN 203110153U CN 201320019277 CN201320019277 CN 201320019277 CN 201320019277 U CN201320019277 U CN 201320019277U CN 203110153 U CN203110153 U CN 203110153U
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- output shaft
- sealing
- box
- makita
- reliable sealing
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Abstract
The utility model relates to a stone cutting machine reliable in sealing. When the stone cutting machine is used for cutting stones, water is used for cooling a blade, and in order to prevent water, slurry, dust and the like from entering a gear box, an output shaft and a gear box need to be well sealed. The stone cutting machine comprises the gear box and a cutting tool, a through hole is formed in the gear box, the cutting tool is connected with the output shaft extending out directly from the through hole, and a sealing piece is arranged between the output shaft and the through hole. The sealing piece comprises a connection portion and a sealing portion, wherein the connection portion is connected with the output shaft and matched tightly with the output shaft, the sealing portion extends to the inner side wall of the box body, and a zigzag clearance is formed between the sealing portion and the inner side wall of the box body. When a machine operates at a high speed, an oil mould is formed in the zigzag clearance to prevent dust and slurry from entering the box body, damage on inside elements is reduced, and the service life of the machine is prolonged.
Description
Technical field
The utility model relates to a kind of reliable sealing makita 4100NH.
Background technology
Makita 4100NH cutting marble, cement block, floor tile etc., when work, high-speed friction can produce a large amount of heats during owing to the cutting tool cutting stone material, makes cutting blade anneal, and hardness reduces, thus wearing and tearing fast; So generally can make the water blade when makita 4100NH uses cools off.Because blade is to be fixed on the output shaft, and rotates with output shaft; And output shaft by bearing fixing on gear-box; For preventing that sealing, mud, dust etc. enter gear-box inside by the gap of output shaft and gear-box, need carry out excellent sealing to output shaft and gear-box.
In existing technology, the hermetically-sealed construction of makita 4100NH substantially all is to adopt outside framework oil seal, belongs to contact and cooperates; This structure friction is bigger, and the machine reactive loss is big, influences the cutting efficiency of machine; And because the lip of outside framework oil seal is that contact cooperates with the output shaft of high-speed rotation, wearing and tearing, thereby life-span easily are restricted.
The utility model content
The technical problem that the utility model solves provides a kind of makita 4100NH, and the sealing of cutting machine middle gear case is reliable, and seal durability is long.
The utility model solves its technical problem and adopts following technical scheme: a kind of reliable sealing makita 4100NH, comprise gear-box and cutting tool, described gear-box is provided with through hole, described cutting tool connects the output shaft that stretches out from through hole, be provided with seal between described output shaft and the through hole, described seal comprises connecting portion and sealing, described connecting portion connect described output shaft and with the output shaft close-fitting, described sealing extends to the box inside wall, forms the meander-like gap between described sealing and the box inside wall.
Further technical scheme is: described box inside wall is provided with projection, and the face that described sealing is relative with the box inside wall is provided with depression, forms described meander-like gap between described projection and the depression.
Further technical scheme is: described output shaft is provided with inner flange and outward flange, and described cutting tool is clamped between described inner flange and the outward flange.
Further technical scheme is: form the bending gap between described gear-box and the inner flange.
Further technical scheme is: described box outer surface is provided with first bulge loop, and described inner flange is provided with first groove corresponding with first bulge loop, forms described bending gap between described first bulge loop and first groove.
Further technical scheme is: described box outer surface is provided with second groove, and described inner flange is provided with second bulge loop corresponding with second groove, forms described bending gap between described second bulge loop and second groove.
Further technical scheme is: described gear-box also comprises the tooth case lid, and described output shaft connects described tooth case lid by bearing.
Further technical scheme is: the jump ring that is provided with the axial restraint bearing in the described tooth case lid.
Further technical scheme is: be provided with wave washer between described jump ring and the bearing.
The beneficial effects of the utility model are: seal and output shaft are fastenedly connected, and form the meander-like gap between the sealing of described seal and the box inside wall.When machine runs up, thereby seal forms oily mould along with output shaft rotates at gap location in casing, can prevent that dust and mud from entering casing, alleviate the injury to inner body, lengthen the life of a machine, and seal not with casing contact friction, long service life.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail:
Fig. 1 is the structural representation of the utility model embodiment 1.
The specific embodiment
With reference to figure 1, shown in a kind of reliable sealing makita 4100NH of the utility model, comprise gear-box and cutting tool 3, described gear-box is provided with through hole 63, described cutting tool 3 connects the output shaft 1 that stretches out from through hole 63, be provided with seal between described output shaft 1 and the through hole 63, described seal comprises connecting portion 21 and sealing 22, described connecting portion 21 connect described output shafts 1 and with the output shaft close-fitting, described sealing 22 extends to the box inside wall, forms the meander-like gap between described sealing 22 and the box inside wall.
With reference to figure 1, embodiment 1: above-mentioned cutting tool 3 is saw blade, and seal is the rigidity material, and connecting portion 21 and output shaft 1 are connected by interference fit, matched in clearance between connecting portion 21 and the casing, and seal is along with output shaft 1 rotates together.When output shaft runs up, the gear-box air pressure inside increases, cause the gap location of lubricating oil between casing and seal to form oil film, can prevent that dust and sewage etc. from entering casing, alleviate the injury to inner body, prolonged service life of a machine, the meander-like gap can prevent effectively that lubricating oil from leaking simultaneously.And seal not with the casing contact friction, seal durability is long.
The structure in meander-like gap, madial wall at described casing is provided with projection 61, the face that described sealing 22 is relative with the box inside wall is provided with depression, form described meander-like gap between described projection and the depression, the cross section of described projection can be for square or fan-shaped, and it also is square or fan-shaped caving in corresponding.
Output shaft 1 is connected with saw blade 3, establish on the described output shaft 1 and be serially connected with inner flange 4 and outward flange 5, inner flange 4 one ends are against the shaft shoulder of output shaft 1, inner flange 4 is provided with the protruding axle of socket saw blade 3, described outward flange 5 clamps saw blade by the end face of screw connection output shaft 1 between inner flange 4 and the outward flange 5.
With reference to figure 1, embodiment 2, on the basis of embodiment 1, are formed with the bending gap between described casing and the inner flange 4.Be provided with first bulge loop 62 at described box outer surface, described inner flange 4 is provided with first groove 41 corresponding with first bulge loop 62, forms described bending gap between described first bulge loop 62 and first groove 41.Perhaps described box outer surface is provided with second groove, described inner flange is provided with second bulge loop corresponding with second groove, form described bending gap between described second bulge loop and second groove, projection and groove that a plurality of cooperations also can be set between casing and inner flange simultaneously form the multiple tracks bent loop, and more effective dust and the mud of preventing enters casing.
Movable connection tooth case lid 6 on the above-mentioned casing, described output shaft 1 connects described tooth case lid 6 by bearing 7; Change into and form described meander-like gap between the madial wall of sealing 22 and tooth case lid 6, be provided with draw-in groove in the described tooth case lid 6, installation shaft is to the jump ring 8 of rigid bearing 7 in the draw-in groove.Be provided with wave washer 9 between jump ring 8 and bearing 7, wave washer can adapt to the small in the axial direction play of output shaft.Or at casing the bearing block of integrative-structure is set, and described through hole is set on the bearing block, output shaft is by bearing connecting axle bearing.
Those skilled in the art can make various changes and distortion to the utility model after knowing principle of the present utility model, only otherwise break away from spirit of the present utility model, all should belong to the defined scope of the utility model claims.
Claims (9)
1. reliable sealing makita 4100NH, comprise gear-box and cutting tool, described gear-box is provided with through hole, described cutting tool connects the output shaft that stretches out from through hole, be provided with seal between described output shaft and the through hole, it is characterized in that: described seal comprises connecting portion and sealing, described connecting portion connect described output shaft and with the output shaft close-fitting, described sealing extends to the box inside wall, forms the meander-like gap between described sealing and the box inside wall.
2. a kind of reliable sealing makita 4100NH according to claim 1, it is characterized in that: described box inside wall is provided with projection, the face that described sealing is relative with the box inside wall is provided with depression, forms described meander-like gap between described projection and the depression.
3. a kind of reliable sealing makita 4100NH according to claim 1, it is characterized in that: described output shaft is provided with inner flange and outward flange, and described cutting tool is clamped between described inner flange and the outward flange.
4. a kind of reliable sealing makita 4100NH according to claim 3 is characterized in that: form the bending gap between described gear-box and the inner flange.
5. a kind of reliable sealing makita 4100NH according to claim 4, it is characterized in that: described box outer surface is provided with first bulge loop, described inner flange is provided with first groove corresponding with first bulge loop, forms described bending gap between described first bulge loop and first groove.
6. a kind of reliable sealing makita 4100NH according to claim 4, it is characterized in that: described box outer surface is provided with second groove, described inner flange is provided with second bulge loop corresponding with second groove, forms described bending gap between described second bulge loop and second groove.
7. a kind of reliable sealing makita 4100NH according to claim 1, it is characterized in that: described gear-box also comprises the tooth case lid, described output shaft connects described tooth case lid by bearing.
8. a kind of reliable sealing makita 4100NH according to claim 7 is characterized in that: the jump ring that is provided with the axial restraint bearing in the described tooth case lid.
9. a kind of reliable sealing makita 4100NH according to claim 8 is characterized in that: be provided with wave washer between described jump ring and the bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320019277 CN203110153U (en) | 2013-01-14 | 2013-01-14 | Stone cutting machine reliable in sealing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320019277 CN203110153U (en) | 2013-01-14 | 2013-01-14 | Stone cutting machine reliable in sealing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203110153U true CN203110153U (en) | 2013-08-07 |
Family
ID=48890530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320019277 Expired - Lifetime CN203110153U (en) | 2013-01-14 | 2013-01-14 | Stone cutting machine reliable in sealing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203110153U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103101119A (en) * | 2013-01-14 | 2013-05-15 | 浙江亚特电器有限公司 | Stone cutting machine with reliable seal |
-
2013
- 2013-01-14 CN CN 201320019277 patent/CN203110153U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103101119A (en) * | 2013-01-14 | 2013-05-15 | 浙江亚特电器有限公司 | Stone cutting machine with reliable seal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: No. 150 Wenlong Road, Yuxin Town, Nanhu District, Jiaxing City, Zhejiang Province Patentee after: Zhejiang Yate Electric Appliance Co.,Ltd. Address before: Jiaxing City, Zhejiang province 314100 Nanhu District Yu Xin Zhen Industrial Zone North Water Road No. 1 Patentee before: ZHEJIANG YAT ELECTRICAL APPLIANCE Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130807 |
|
| CX01 | Expiry of patent term |