CN2504019Y - Broaching bit for upset bolt - Google Patents
Broaching bit for upset bolt Download PDFInfo
- Publication number
- CN2504019Y CN2504019Y CN 01251850 CN01251850U CN2504019Y CN 2504019 Y CN2504019 Y CN 2504019Y CN 01251850 CN01251850 CN 01251850 CN 01251850 U CN01251850 U CN 01251850U CN 2504019 Y CN2504019 Y CN 2504019Y
- Authority
- CN
- China
- Prior art keywords
- main spindle
- eccentric
- emery wheel
- flat
- hole
- 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
Links
- 229910001651 emery Inorganic materials 0.000 claims description 47
- 238000009527 percussion Methods 0.000 abstract description 8
- 230000000295 complement effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
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- Drilling And Boring (AREA)
Abstract
The utility model discloses an expansion-bolt widening drill, which comprises a main spindle, an eccentric ablate-hole grinding wheel and a nut which can be used for preventing the eccentric oblate-hole from falling down; the upper end of the main spindle is provided with a driving clipping place; the utility model is characterized in that the lower part of the main spindle is shaped into an oblate shaft; the eccentric oblate hole of the eccentric oblate-hole grinding wheel is sleeved in the oblate shaft of the main spindle and can rotate together with the main spindle and can be positioned by the nut which can be used for preventing the eccentric oblate-hole from being rotated off; in this way, the utility model can widen the straight hole drilled by a percussion drill into a hole which can match with the shape of the expansion-bolt which is expanded. The utility model has strong pushing and pulling force and is convenient to be used.
Description
Technical field:
The utility model relates to a kind of expansion bolt reamer.
Background technology:
Use expansion bolt generally with the percussion drill hole of punching, as shown in figure 10 in the construction and installation; The hole of getting is straight hole, and the external form diameter of expansion bolt after expanding be not complementary with the internal diameter in straight hole hole, and the pulling capacity of the drilling method construction expansion bolt of this percussion drill is not strong, is to be difficult to employing on external wall.
Summary of the invention:
The purpose of this utility model is to provide a kind of straight hole hole that can get percussion drill effectively to expand and wears into hole, the pulling capacity expansion bolt reamer strong and easy to use that is complementary with the external form of expansion bolt after expanding.The purpose of this utility model is to realize like this, described expansion bolt reamer, comprise the nut that main spindle, eccentric flat hole emery wheel and anti-eccentric flat hole emery wheel come off, its upper end of main spindle is the power clamp position, its design feature is that flat axle is made in described main spindle bottom, and the eccentric flat borehole jack of eccentric flat hole emery wheel can rotate and rotated the nut location of deviating from by anti-eccentric flat hole emery wheel in the flat axle of main spindle with main spindle.The purpose of this utility model also can be achieved through the following technical solutions, described expansion bolt reamer, and its characteristics are for being with the eccentric opposite two flat hole of the off-centre emery wheels up and down that are in the flat axle of main spindle.Described expansion bolt reamer, its characteristics are for being with bearing outside the bottom, power clamp position of main spindle upper end, between the nut that off-centre flat hole emery wheel and anti-eccentric flat hole emery wheel come off, be with plain cushion, be with bearing outward between the nut that plain cushion and anti-eccentric flat hole emery wheel come off.Described expansion bolt reamer, in the flat axle of its characteristics for the main spindle of that can rotate with main spindle and the lower end eccentric flat hole emery wheel of its eccentric flat borehole jack in the flat axle of main spindle, flat axle bottom is made circular shaft and is with plain cushion and is with bearing again, after making screw thread and rotate the nut location of deviating from by anti-eccentric flat hole emery wheel in the circular shaft lower end again, plug latch.Described expansion bolt reamer, its characteristics are that described bearing adopts ball bearing.The utility model is owing to make flat axle to the bottom of main spindle, and the eccentric flat borehole jack of eccentric flat hole emery wheel can rotate and rotates the nut of deviating from by anti-eccentric flat hole emery wheel and locate in the flat axle of main spindle with main spindle.Eccentric flat hole emery wheel is during by the main spindle driven rotary, because the flat axial extent of the eccentric flat boring ratio main spindle of eccentric flat hole emery wheel, make wideer a little and length makes longer, make eccentric flat hole emery wheel in high speed rotating, produce inertia, because the centre-of gravity shift of eccentric emery wheel enlarges to heavy direction and produce inertia.Eccentric during when being with for the opposite two flat hole of off-centre emery wheels up and down, then the every flat hole of off-centre emery wheel enlarges mill to the opposite limit of the flat axle of main spindle is changeed, and mill is expanded in the straight hole hole that the polishing hole wall is got percussion drill on the expansion position, thereby reaches the purpose of reaming; The straight hole hole that can be effectively get percussion drill is expanded and is worn into the hole that is complementary with the external form of expansion bolt after expanding, and makes that general expansion bolt drawing is stressed to reach effective pull strength.
Description of drawings:
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is a structural representation in the high speed rotation of the present utility model.
Fig. 3 is the structural representation of main spindle of the present utility model.
Fig. 4 expands the mill state diagram for the eccentric flat hole emery wheel among Fig. 1 is in the end.
Fig. 5 is in the state diagram of rotating the expansion mill for the eccentric flat hole emery wheel of Fig. 2.
Fig. 6 is the elevational schematic view of Fig. 3.
Fig. 7 is the A-A cross section structure figure of Fig. 2.
Fig. 8 is the B-B cross section structure figure of Fig. 2.
Fig. 9 is the pore space structure schematic diagram after the reaming of employing the utility model.
Figure 10 is for adopting the structural representation of dress expansion bolt in the hole after existing percussion drill punches.
Figure 11 is the structural representation of the interior dress of the hole expansion bolt after the reaming of employing the utility model.
Figure 12 is the structural representation of expansion bolt.
The specific embodiment:
Below in conjunction with accompanying drawing the utility model is elaborated:
As Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6 and Fig. 7 and shown in Figure 8, the utility model comprises the nut 3 that main spindle 1, eccentric flat hole emery wheel 2 and anti-eccentric flat hole emery wheel come off, main spindle 1 its upper end is the power clamp position, design feature is that flat axle 4 is made in the bottom of main spindle 1, the eccentric flat borehole jack of eccentric flat hole emery wheel 2 can rotate synchronously with main spindle in the flat axle 4 of main spindle 1 and rotate nut 3 location of deviating from by anti-eccentric flat hole emery wheel, and purpose is to prevent that the eccentric flat hole emery wheel of high speed rotating from deviating from the flat axle of main spindle 1; The eccentric flat hole 5 of eccentric flat hole emery wheel 2 makes wideer a little (can slide as long as width reaches eccentric flat hole emery wheel) than flat axle 4 width of main spindle in flat axle, and that length makes is longer, thereby eccentric flat hole emery wheel flat axle one side shifting of main spindle partially, making eccentric flat hole emery wheel enlarge mill to a side in high speed rotating changes.In the flat axle of main spindle 1, be with the eccentric opposite two flat hole of the off-centre emery wheels 2 up and down that are; The every flat hole of off-centre emery wheel then enlarges mill to flat opposite limit of main spindle in high speed rotating is changeed.Being with bearing 6 outside the bottom, power clamp position of main spindle 1 upper end, mainly has been to protect positive main spindle effect; Between the nut that off-centre flat hole emery wheel and anti-eccentric flat hole emery wheel come off, be with plain cushion, the outer bearing 7 that is with between the nut that plain cushion and anti-eccentric flat hole emery wheel come off, the bearing effect has been that the flat axle of main spindle protects positive interaction, plain cushion is to protect the bearing effect.Above-mentioned bearing generally adopts ball bearing.During making, generally circular shaft is made in flat axle 4 bottoms of main spindle 1 and be with plain cushion and be with bearing 7 again, make screw thread again in the circular shaft lower end and rotate the nut of deviating from 3 by anti-eccentric flat hole emery wheel and on the circular shaft of nut lower end, locate with latch.During use, after the existing percussion drill of general employing is beaten straight hole, adopt the utility model reaming 8 again, as shown in Figure 9; During reaming, main spindle rotates, driving flat axle rotates, the eccentric flat hole emery wheel that is enclosed within the flat axle is rotated synchronously, eccentric flat hole emery wheel is offset in flat axle and transfers to produce reaming to straight hole wall one side expansion mill under centrifugal action, reinstalls expansion bolt such as Figure 11, shown in Figure 12 in the hole after the reaming.
Claims (5)
1, a kind of expansion bolt reamer, comprise the nut (3) that main spindle (1), eccentric flat hole emery wheel (2) and anti-eccentric flat hole emery wheel come off, its upper end of main spindle (1) is the power clamp position, it is characterized in that described main spindle (1) bottom makes flat axle (4), the eccentric flat hole (5) of eccentric flat hole emery wheel is enclosed within the flat axle (4) of main spindle (1) and can rotates and rotated nut (3) location of deviating from by anti-eccentric flat hole emery wheel with main spindle.
2, expansion bolt reamer according to claim 1 is characterized in that being with the eccentric opposite two flat hole of the off-centre emery wheels (3) up and down that are in the flat axle (4) of main spindle (1).
3, expansion bolt reamer according to claim 1 and 2, it is characterized in that outside the bottom, power clamp position of main spindle (1) upper end, being with bearing (6), between the nut that off-centre flat hole emery wheel and anti-eccentric flat hole emery wheel come off, be with plain cushion, be with bearing (7) outward between the nut that plain cushion and anti-eccentric flat hole emery wheel come off.
4, expansion bolt reamer according to claim 3, in the flat axle (4) of the main spindle (1) of the lower end of that it is characterized in that to rotate with main spindle and the eccentric flat hole emery wheel of its eccentric flat borehole jack in the flat axle of main spindle (1), flat axle bottom is made circular shaft and is with plain cushion and is with bearing again, after making screw thread and rotate the nut location of deviating from by anti-eccentric flat hole emery wheel in the circular shaft lower end again, plug latch.
5, expansion bolt reamer according to claim 3 is characterized in that described bearing adopts ball bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01251850 CN2504019Y (en) | 2001-09-09 | 2001-09-09 | Broaching bit for upset bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01251850 CN2504019Y (en) | 2001-09-09 | 2001-09-09 | Broaching bit for upset bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2504019Y true CN2504019Y (en) | 2002-08-07 |
Family
ID=33661682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01251850 Expired - Fee Related CN2504019Y (en) | 2001-09-09 | 2001-09-09 | Broaching bit for upset bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2504019Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112334351A (en) * | 2018-07-24 | 2021-02-05 | 博格华纳公司 | Torque limiting coupling for motor shaft |
-
2001
- 2001-09-09 CN CN 01251850 patent/CN2504019Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112334351A (en) * | 2018-07-24 | 2021-02-05 | 博格华纳公司 | Torque limiting coupling for motor shaft |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |