CN202611587U - Electric drill rotor with mechanical sealing device - Google Patents
Electric drill rotor with mechanical sealing device Download PDFInfo
- Publication number
- CN202611587U CN202611587U CN 201220174158 CN201220174158U CN202611587U CN 202611587 U CN202611587 U CN 202611587U CN 201220174158 CN201220174158 CN 201220174158 CN 201220174158 U CN201220174158 U CN 201220174158U CN 202611587 U CN202611587 U CN 202611587U
- Authority
- CN
- China
- Prior art keywords
- main shaft
- rotor
- bearing
- electric drill
- drill bit
- 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 discloses an electric drill rotor with a mechanical sealing device. The electric drill rotor comprises a main shaft, a winding coil assembly is arranged in the middle of the main shaft, and a drill bit is arranged at the lower end of the main shaft. A bearing is arranged between the drill bit and the winding coil assembly, a mechanical sealing part is arranged between the bearing and the upper end of the drill bit, and a stop collar is arranged between the winding coil assembly and the bearing. According to the electric drill rotor with the mechanical sealing device, by means of the combination of the bearing with mechanical seal, the operation of the drill main shaft is stable and not easily disturbed by external impurities, and the service life is increased; and simultaneously, the advantages of certain elasticity and flexibility of the mechanical seal are fully used, so that a certain impact force can be buffered by the drill bit, and the operation environment of the main shaft is steady. The electric drill rotor can increase the service life of the rotor apparently, and is stable in operation and high in adaptability to bad working environments.
Description
Technical field
The utility model relates to a kind of good seal performance, long electric drill rotor of shock-resistant, stable and life-span.
Background technology
In the technique known field, electric impact drill is main with rotary cutting, has the beater mechanism that relies on operator's thrust production impact force concurrently; Be used for the electric tools of holing on the materials such as brick, building block and lightweight wall, Churn drill can be used for natural stone or concrete, and they are general; Because they both can use " single boring " pattern, also can use " Churn drill " pattern, electric hammer relies on rotation and beats work; The single power of beating is very high; And have the frequency of beating of per minute 1000 to 3000, and can produce significant power, electric hammer needs minimum pressure to pierce hard material; Single impact is very slight, but the frequency of impact of per minute more than 40000 time can produce continuous power.So the operating mode of general electric impact drill all compares badly, dust is many, and common oil sealing is sealing performance meeting variation after a period of time; And after the work of long-time impact force, off-axis very easily takes place to, the accident of wear damage in the electric drill rotor; Influenced the progress of production engineering, the critical piece electric drill rotor of application life, the especially electric drill of the electric drill that shortens simultaneously; Price is more expensive, and maintenance cost is big.
The utility model content
The technical problem that the utility model will solve is: a kind of good seal performance, long electric drill rotor of shock-resistant, stable and life-span are provided.
The utility model solves the technical scheme that its technical problem adopted: a kind of electric drill rotor with mechanically-sealing apparatus; Comprise main shaft; Be provided with the winding around group at the middle part of described main shaft; Lower end at described main shaft is provided with drill bit, between described drill bit and winding around group, is provided with bearing, between the upper end of described bearing and drill bit, is provided with mechanical sealing member.
Further, consider the fixed limit of bearing, the utility model is provided with spacing ring between described winding around group and bearing.
The beneficial effect of the utility model the utility model is: the utility model makes the operation of awl main shaft more steadily and not be vulnerable to the interference of introduced contaminants through the combination of adopting bearing to add mechanical seal; Improved the life-span of using; Make full use of mechanical seal simultaneously and possessed certain elasticity and flexible characteristics; Make drill bit can cushion certain impact force, make that the running environment of main shaft is more stable, this programme can significantly improve the application life of rotor; And operate steadily, the ability that adapts to bad working environments is stronger.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the part section structural representation of the utility model.
Among the figure: 1. main shaft, 2. winding around group, 3. drill bit, 4. mechanical sealing member, 5. bearing, 6. spacing ring.
The specific embodiment
Combine accompanying drawing that the utility model is done further detailed explanation now.These accompanying drawings are the sketch map of simplification, the basic structure of the utility model only is described in a schematic way, so it only show the formation relevant with the utility model.
A kind of electric drill rotor of the utility model as shown in Figure 1 with mechanically-sealing apparatus; Comprise main shaft 1; Be provided with winding around group 2 at the middle part of described main shaft 1, be provided with drill bit 3, between described drill bit 3 and winding around group 2, be provided with bearing 5 in the lower end of described main shaft 1; Between the upper end of described bearing 5 and drill bit 3, be provided with mechanical sealing member 4, between described winding around group 2 and bearing 5, be provided with spacing ring 6.
With above-mentioned desirable embodiment according to the utility model is enlightenment, and through above-mentioned description, the related work personnel can carry out various change and modification fully in the scope that does not depart from this utility model technological thought.The technical scope of this utility model is not limited to the content on the manual, must confirm its technical scope according to the claim scope.
Claims (2)
1. electric drill rotor with mechanically-sealing apparatus; Comprise main shaft (1); Be provided with winding around group (2) at the middle part of described main shaft (1); Be provided with drill bit (3) in the lower end of described main shaft (1), it is characterized in that: between described drill bit (3) and winding around group (2), be provided with bearing (5), between the upper end of described bearing (5) and drill bit (3), be provided with mechanical sealing member (4).
2. a kind of electric drill rotor with mechanically-sealing apparatus as claimed in claim 1 is characterized in that: between described winding around group (2) and bearing (5), be provided with spacing ring (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220174158 CN202611587U (en) | 2012-04-23 | 2012-04-23 | Electric drill rotor with mechanical sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220174158 CN202611587U (en) | 2012-04-23 | 2012-04-23 | Electric drill rotor with mechanical sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202611587U true CN202611587U (en) | 2012-12-19 |
Family
ID=47345297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220174158 Expired - Fee Related CN202611587U (en) | 2012-04-23 | 2012-04-23 | Electric drill rotor with mechanical sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202611587U (en) |
-
2012
- 2012-04-23 CN CN 201220174158 patent/CN202611587U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121219 Termination date: 20130423 |