CN201110358Y - Transmission nut with strengthen coat for electric screw - Google Patents
Transmission nut with strengthen coat for electric screw Download PDFInfo
- Publication number
- CN201110358Y CN201110358Y CNU2007200741945U CN200720074194U CN201110358Y CN 201110358 Y CN201110358 Y CN 201110358Y CN U2007200741945 U CNU2007200741945 U CN U2007200741945U CN 200720074194 U CN200720074194 U CN 200720074194U CN 201110358 Y CN201110358 Y CN 201110358Y
- Authority
- CN
- China
- Prior art keywords
- nut
- steel
- overcoat
- chase mortise
- copper
- 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 - Lifetime
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Abstract
The utility model relates transmission parts, in particular to a drive screw nut with strengthening casing of electric screw rods, which comprises a copper screw nut and is characterized in that a steel strengthening casing is fixed on the periphery by interference fit connection, chase mortise connection and threaded connection. The drive screw nut solves the technical problem of combining the copper screw nut and the steel strengthening casing to achieve the goals that the transmission performance is identical with that of the steel screw nut and shape and size are close to that of the steel screw nut.
Description
Technical field:
The utility model is about transmission part, in particular for the copper nut of strengthening overcoat that has in the power screw.
Background technique:
Electric screw is a kind of spiral principle that utilizes, and will change the transmission instrument of the straight reciprocating motion of the flexible rod that is connected with nut into by the rotatablely moving of the screw rod of driven by motor.In order to reduce the friction between nut and screw rod, often utilize the greasy property of copper material self to make nut, but the intensity of copper material itself is much lower than the steel material of making screw rod, the bearing capacity of the copper nut of same size is less than steel nut, this deficiency is not outstanding to the electric screw of little load.In case the electric screw load surpasses certain limit, in the preceding topic that same proof strength requires, use the contour structure size of the electric screw of copper transmission nut to be greater than to use the steel transmission nut, bearing load is bigger, and this species diversity is just bigger.Therefore the copper transmission nut that uses self performance good is had to abandon in big in carrying and be subjected to place size restrictions place, and adopts the steel transmission nut of greasy property difference, causes transmission performance poor, and the screw rod wearing and tearing strengthen.For a long time, industry is not improved in this respect and is broken through.
The model utility content:
The utility model is to provide a kind of transmission nut of strengthening overcoat that has of electric screw, solve copper nut and steel and strengthen the technical problem of the combination of overcoat, to reach the purpose that transmission efficiency is identical with copper nut, contour structure size is close with the steel nut.
The technological scheme that the utility model solves the problems of the technologies described above is:
A kind of electric screw have a transmission nut of strengthening overcoat, comprise copper nut, it is characterized in that: the reinforcement overcoat that connects or be threaded and be fixed with steel with interference connection, chase mortise in the periphery of copper nut.
Further, it is characterized in that: be arranged on the copper nut of chase mortise connection and the secondary quantity of chase mortise of steel reinforcement overcoat junction plane and be at least 1; When the quantity of chase mortise pair greater than 1 the time, each chase mortise pair is arranged along branches such as circumference.
Further, it is characterized in that: this chase mortise pair end from nut on the nut overall height of arranging along branches such as circumference connects to the nut the other end; Perhaps be divided into more than two sections or two sections along the nut overall height, the secondary dislocation of each adjacent two sections chase mortise is arranged.
Further, it is characterized in that: be provided with and radially connect the locking pin of strengthening overcoat be threaded fixing copper nut and steel.
Further, it is characterized in that: this steel is strengthened overcoat and is divided into the left and right sides two-part with internal thread, adopts being threaded of double nut locking to be fixed on the outside thread of copper nut.
The utlity model has following beneficial effect:
1. the utility model has increased the reinforcement overcoat of steel in copper nut outside, both kept the original low coefficient of friction of copper nut, the advantage that power loss is little, improved the ability of its carrying again, its boundary dimension is greatly reduced to the steel nut size near the same bearer ability, for the installation of equipment provides huge facility.
2. can save a large amount of valuable copper materials.
Description of drawings:
Fig. 1 is a kind of structural representation of the present utility model.
Fig. 2 is the A-A sectional view of Fig. 1.
Embodiment:
Fig. 1 is the schematic representation of a kind of structure of the present utility model, it comprises copper nut 2, outer periphery at this copper nut 2 is equipped with the reinforcement overcoat made from copper material 1, on the junction plane between this copper nut 2 and the reinforcement overcoat 1, be respectively arranged with the chase mortise auxiliary connection 3 that tenon and corresponding groove are formed, to prevent to strengthen trackslipping mutually of overcoat 1 and copper nut 2.The quantity of this chase mortise auxiliary connection 3 is at least 1 pair, and as shown in Figure 1 then for being provided with 4 pairs, and this 4 secondary chase mortise auxiliary connection 3 is five equilibrium along above-mentioned circumference junction plane and arranges, this chase mortise auxiliary connection 3 connects the other end to nut from an end of nut on the nut overall height.This chase mortise auxiliary connection 3 also can be divided into more than two sections or two sections along the nut overall height, and each adjacent two sections chase mortise auxiliary connection dislocation arranges that the structure shown in Figure 1 that is shown in Figure 2 is divided into 7 sections sectional view with the chase mortise auxiliary connection, and every section misplaces 45 °.
It is fixedly connected that circumference junction plane between reinforcement overcoat 1 of the present utility model and the copper nut 2 can also adopt the Placement of interference fit to carry out, and perhaps adopts to be threaded.When employing is threaded, be provided with the locking pin of the reinforcing overcoat 1 that radially connects copper nut 2 and steel usually, with prevent to reinforce overcoat 1 in use since vibrations that cause with coming off that relative rotation copper nut 2 causes.Perhaps the reinforcement overcoat 1 with this steel is divided into the left and right two-part with internal thread, and the mode that locks with double nut connects on the outside thread that is fixed on this copper nut 2.
Claims (5)
1, a kind of electric screw has a transmission nut of strengthening overcoat, comprises copper nut, it is characterized in that: the reinforcement overcoat that connects or be threaded and be fixed with steel with interference connection, chase mortise in the periphery of copper nut.
2, the transmission nut with reinforcement overcoat according to claim 1 is characterized in that: be arranged on the copper nut of chase mortise connection and the secondary quantity of chase mortise of steel reinforcement overcoat junction plane and be at least 1; When the quantity of chase mortise pair greater than 1 the time, each chase mortise pair is arranged along branches such as circumference.
3, the transmission nut with reinforcement overcoat according to claim 2 is characterized in that: this chase mortise pair end from nut on the nut overall height of arranging along branches such as circumference connects to the nut the other end; Perhaps be divided into more than two sections or two sections along the nut overall height, the secondary dislocation of each adjacent two sections chase mortise is arranged.
4, the transmission nut with reinforcement overcoat according to claim 1 is characterized in that: be provided with and radially connect the locking pin of strengthening overcoat be threaded fixing copper nut and steel.
5, the transmission nut with reinforcement overcoat according to claim 1 is characterized in that: this steel is strengthened overcoat and is divided into the left and right sides two-part with internal thread, adopts being threaded of double nut locking to be fixed on the outside thread of copper nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200741945U CN201110358Y (en) | 2007-08-29 | 2007-08-29 | Transmission nut with strengthen coat for electric screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200741945U CN201110358Y (en) | 2007-08-29 | 2007-08-29 | Transmission nut with strengthen coat for electric screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201110358Y true CN201110358Y (en) | 2008-09-03 |
Family
ID=39894889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200741945U Expired - Lifetime CN201110358Y (en) | 2007-08-29 | 2007-08-29 | Transmission nut with strengthen coat for electric screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201110358Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102252074A (en) * | 2011-07-20 | 2011-11-23 | 鄂州市建树机械有限公司 | Screw transmission pair of screw rod |
-
2007
- 2007-08-29 CN CNU2007200741945U patent/CN201110358Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102252074A (en) * | 2011-07-20 | 2011-11-23 | 鄂州市建树机械有限公司 | Screw transmission pair of screw rod |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080903 |