CN212775127U - Fastening screw with external impact prop teeth - Google Patents
Fastening screw with external impact prop teeth Download PDFInfo
- Publication number
- CN212775127U CN212775127U CN202021822008.3U CN202021822008U CN212775127U CN 212775127 U CN212775127 U CN 212775127U CN 202021822008 U CN202021822008 U CN 202021822008U CN 212775127 U CN212775127 U CN 212775127U
- Authority
- CN
- China
- Prior art keywords
- tooth
- opposite directions
- teeth
- yang
- utility
- 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
- 150000001768 cations Chemical class 0.000 claims description 6
- 125000002091 cationic group Chemical group 0.000 claims 1
- 238000004080 punching Methods 0.000 description 9
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Mounting Of Bearings Or Others (AREA)
Abstract
The utility model belongs to the fastener field, concretely relates to take yang towards tooth in opposite directions holding screw for bearing and axle assembly adapted, including the nail body, the front end of its characterized in that nail body is equipped with yang towards portion and tooth in opposite directions portion, and the yang towards portion is located the front end center of the nail body, and the shape is the toper, and the front end is equipped with the awl point, and tooth in opposite directions portion is the ring form, around in the yang towards portion outside, and tooth in opposite directions portion's preceding terminal surface is the inclined plane, and it has many spirals to prop the tooth in opposite directions to distribute on the inclined plane, and the height that the yang towards portion is greater than tooth in opposite directions portion is high. The utility model has the advantages of reasonable structure, multiple functions and stable and reliable use.
Description
Technical Field
The utility model belongs to the fastener field, concretely relates to take cation impact tooth holding screw that is used for bearing and axle equipment adapted.
Background
When the bearing and the shaft are assembled, the bearing inner ring and the shaft are fixed by the set screws, the set screws generally use common screws, when the bearing and the shaft are assembled in a trial mode, a small screw or other punch with a tip is inserted into the screw hole in advance, a positioning point is left on the shaft, then the bearing and the shaft are separated, then the shaft is punched, and the positioning point is often inaccurate in positioning and affects the assembly precision. After the shaft is punched, the bearing and the shaft are reassembled, the set screw penetrates through the bearing inner ring and the shaft to connect the bearing inner ring and the shaft together, the bearing is influenced by vibration and impact when in use, and the phenomenon of loosening easily occurs to the common set screw.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a take cation impact tooth holding screw, it sets up cation portion and impact tooth portion, and cation portion is used for punching a hole the location, and impact tooth portion is used for preventing to fall the pine.
The utility model discloses a realize through following technical scheme:
the tightening screw with the positive impact prop teeth comprises a screw body and is characterized in that a positive impact part and a prop teeth part are arranged at the front end of the screw body, the positive impact part is positioned at the center of the front end of the screw body and is conical, a conical tip is arranged at the front end of the screw body, the prop teeth part is annular and surrounds the outer side of the positive impact part, the front end face of the prop teeth part is an inclined face, a plurality of spiral prop teeth are distributed on the inclined face, and the height of the positive impact part is greater than that of the prop teeth part.
Furthermore, the cone tip of the male punching part of the utility model is preferably but not limited to protrude 0.2-0.5mm from the peak tooth part.
Furthermore, the rear end of the nail body of the utility model is provided with an inner hexagonal counter bore.
The utility model has the advantages of reasonable structure, multiple functions and stable and reliable use. During bearing and axle trial assembly, directly will the utility model discloses in installing the screw hole of bearing inner circle, the awl point of positive portion 4-3 can leave a setpoint epaxial, and this setpoint location is accurate, will the utility model discloses reverse rotation is got rid of, carries out the operation of punching with bearing and axle separation back counter shaft. When the axle punches, the internal thread hole's of axle the direction of rotation with the utility model discloses an in opposite directions of tooth rotation in the opposite directions of tooth portion in the opposite directions, the internal thread hole bottom of axle is the toper, and the axle punches the operation and finishes the back, when reassembling bearing and axle, the utility model discloses pass bearing inner circle and axle and link together both, when fastening screw screws up when targetting in place, the tooth in the opposite directions of tooth portion in the opposite directions of its front end can imbed some (the hardness of tooth portion in the opposite directions is greater than the hardness of axle) in the internal thread hole bottom of axle, the utility model discloses firm with the hub connection, the phenomenon of loosening can not take place.
Drawings
Fig. 1 is a schematic perspective view of the present invention;
fig. 2 is a schematic sectional view of the present invention.
As shown in the figure: 4-1, forming an inner hexagonal counter bore; 4-2. peak tooth part; 4-3. the yang chong part; 4-4. hip teeth;
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby. It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.
As shown in fig. 1 and 2: the rear end of the nail body is provided with an inner hexagonal counter bore 4-1, the front end is provided with a male punching part 4-3 and an abutment part 4-2, the male punching part 4-3 is conical, the front end is provided with a cone tip, the abutment part 4-2 is annular and surrounds the outer side of the male punching part 4-3, the front end face of the abutment part 4-2 is an inclined face, a plurality of left-handed spiral abutment teeth 4-4 are distributed on the inclined face, and the cone tip of the male punching part 4-3 slightly protrudes out of the abutment part 4-2.
When the utility model is used, when the bearing and the shaft are assembled in trial, the utility model is directly installed in the screw hole of the bearing inner ring, the conical point of the male punching part 4-3 leaves a positioning point on the shaft, the positioning point is positioned accurately, the utility model is removed by reverse rotation, the shaft is punched after the bearing and the shaft are separated, when the shaft is punched, the thread rotating direction of the inner thread hole of the shaft is right-handed, the inner thread hole bottom of the shaft is conical, when the bearing and the shaft are assembled again after the shaft punching operation is finished, the utility model passes through the bearing inner ring and the shaft to connect the bearing inner ring and the shaft together, when the shaft is screwed down, the prop tooth 4-4 of the prop tooth part 4-2 at the front end of the utility model is embedded into a part of the inner thread hole bottom of the shaft (the hardness of the prop tooth part 4-2 is more than that of the shaft), so that the utility model is, the phenomenon of falling loose can not occur.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.
Claims (3)
1. A set screw with positive impact peak teeth comprises a screw body and is characterized in that a positive impact part and a peak teeth part are arranged at the front end of the screw body, the positive impact part is positioned in the center of the front end of the screw body and is conical, a conical tip is arranged at the front end of the screw body, the peak teeth part is annular and surrounds the outer side of the positive impact part, the front end face of the peak teeth part is an inclined face, a plurality of spiral peak teeth are distributed on the inclined face, and the height of the positive impact part is greater than that of the peak teeth part.
2. The set screw with cation hip teeth of claim 1, characterized in that the tip of the cation part protrudes from the hip teeth part by 0.2-0.5 mm.
3. The set screw with cationic hip teeth of claim 1, characterized in that the back end of the screw body is provided with an inner hexagonal counter bore.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021822008.3U CN212775127U (en) | 2020-08-26 | 2020-08-26 | Fastening screw with external impact prop teeth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021822008.3U CN212775127U (en) | 2020-08-26 | 2020-08-26 | Fastening screw with external impact prop teeth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212775127U true CN212775127U (en) | 2021-03-23 |
Family
ID=75055245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021822008.3U Expired - Fee Related CN212775127U (en) | 2020-08-26 | 2020-08-26 | Fastening screw with external impact prop teeth |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212775127U (en) |
-
2020
- 2020-08-26 CN CN202021822008.3U patent/CN212775127U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210323 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |