CN202266654U - Helical skew bevel gear - Google Patents
Helical skew bevel gear Download PDFInfo
- Publication number
- CN202266654U CN202266654U CN2011203491134U CN201120349113U CN202266654U CN 202266654 U CN202266654 U CN 202266654U CN 2011203491134 U CN2011203491134 U CN 2011203491134U CN 201120349113 U CN201120349113 U CN 201120349113U CN 202266654 U CN202266654 U CN 202266654U
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- CN
- China
- Prior art keywords
- bevel gear
- helical
- gear teeth
- wheel body
- bore
- 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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- Gears, Cams (AREA)
Abstract
The utility model provides a helical skew bevel gear which mainly solves the problem that the overall dimension is large when the conventional helical bevel gear bears a large torque. The helical skew bevel gear is characterized in that: the helical angle of gear teeth (2) is 35 degrees; and the normal modulus of the large end of the gear teeth (2) is 6.4. The overall dimension is small when the helical skew bevel gear bears the large torque, and the helical skew bevel gear is suitable for a sizing roller which has a small profile and large rolling force, and has the characteristics of small occupied space, and large transfer torque.
Description
Technical field
The utility model relates to a kind of spiral bevel gear, is specifically related to a kind of spiral helical bevel gear.
Background technique
In the steel rolling field; The hot-rolled pipe machine is the capital equipment of rolling seamless steel pipe, mainly comprises sizing roll device, motor, speed reducer and cardan shaft, and the sizing roll device mainly is made up of frame, live axle, two driven shafts and roll; Live axle and two driven shafts of fixing distribution triangular in shape on the frame; The outer wall of roll is provided with arc groove, forms after the groove correspondence on three rolls and rolls the hole, on live axle and two driven shafts bearing is installed; Bearing is equipped with axle sleeve outward; Through 1:1 transmitting torque between the axle sleeve on the two pairs of identical bevel gears and two driven shafts, the axle sleeve that the axle sleeve on the live axle rotates on two driven shafts of drive rotates synchronously, and three rolls are rotated in rolling the hole simultaneously respectively at axle sleeve two ends on the live axle.Because rolling load is bigger, in order to satisfy the carrying demand, bevel gear is generally selected helical bevel gear for use; The general rolling external diameter of sizing roll device is the seamless steel pipe of big (nominal diameter is greater than 100mm); To the not restriction of boundary dimension of sizing roll device, existing helical bevel gear is in order to satisfy the needs of bearing capacity, and boundary dimension is bigger; Become huge with regard to the structure that makes the sizing roll device like this, it is big to take up room.And for the seamless steel pipe of rolling external diameter less (nominal diameter is less than 100mm); The sizing roll device is arranged closely; Adjacent distance also requires nearer, and like this, existing helical bevel gear just can not satisfy boundary dimension and have bigger demands for bearing capacity little the time.
The model utility content
In order to overcome existing helical bevel gear big deficiency of boundary dimension when carrying high pulling torque; The utility model provides a kind of spiral helical bevel gear; This spiral helical bevel gear boundary dimension when carrying high pulling torque is less; Be fit to the sizing roll device that profile is less and rolling load is bigger, have the characteristics little and that transmitting torque is big that take up room.
The technological scheme of the utility model is: a kind of spiral helical bevel gear comprises the wheel body and the gear teeth, and the gear teeth are the trochoid spiral shape along the tooth length direction, and the helix angle of the described gear teeth is 35 °, and the big hold-carrying of the gear teeth is 6.4 to modulus.
Described wheel body 1 is provided with central through bore, is provided with transition fit inner cylindrical surface and internal spline successively from the big small end of holding in the central through bore, and the small end end face middle part of described wheel body is provided with the counterbore with the central through bore concentric, and the side of counterbore is the transition fit face.
The utlity model has following beneficial effect: owing to take such scheme; This spiral helical bevel gear adopts the nonstandard helical bevel gear of large helix angle, has reduced the Outside diameter of wheel body effectively, has increased the contact length of the flank of tooth; When carrying high pulling torque, reduced boundary dimension; Assembling back compact structure, it is little to take up room, and is fit to the sizing roll device that profile is less and rolling load is bigger.
Description of drawings
Accompanying drawing 1 is the structure sectional view of the utility model.
1-wheel body among the figure, the 2-gear teeth, 3-central through bore, 4-transition fit inner cylindrical surface, 5-internal spline, 6-counterbore.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further:
By shown in Figure 1, a kind of spiral helical bevel gear comprises the wheel body 1 and the gear teeth 2, and the gear teeth 2 are the trochoid spiral shape along the tooth length direction, and the helix angle of the described gear teeth 2 is 35 °, and the big hold-carrying of the gear teeth 2 is 6.4 to modulus.This spiral helical bevel gear adopts the nonstandard helical bevel gear of large helix angle; Reduced the Outside diameter of wheel body 1 effectively; Increased the contact length of the flank of tooth, when carrying high pulling torque, reduced boundary dimension, assembling back compact structure; It is little to take up room, and is fit to the sizing roll device that profile is less and rolling load is bigger.
Described wheel body 1 is provided with central through bore 3; Be provided with transition fit inner cylindrical surface 4 and internal spline 5 successively from the big small end of holding in the central through bore 3; The small end end face middle part of described wheel body 1 is provided with the counterbore 6 with central through bore 3 concentrics, and the side of counterbore 6 is the transition fit face.After this spiral helical bevel gear is installed; The transition fit inner cylindrical surface 4 of central through bore 3 matches with installation shaft; Very close to each other, and installing and locating cover or location end caps in the counterbore 6, in the location, both sides of the internal spline 5 of wheel body 1; Make between wheel body 1 and the installation shaft and can not produce the gap, and then guaranteed the accuracy of mesh between this spiral helical bevel gear and the coupling gear.
Claims (2)
1. a spiral helical bevel gear comprises the wheel body (1) and the gear teeth (2), and the gear teeth (2) are the trochoid spiral shape along the tooth length direction, it is characterized in that: the helix angle of the described gear teeth (2) is 35 °, and the big hold-carrying of the gear teeth (2) is 6.4 to modulus.
2. a kind of spiral helical bevel gear according to claim 1; It is characterized in that: wheel body (1) is provided with central through bore (3); Be provided with transition fit inner cylindrical surface (4) and internal spline (5) successively from the big small end of holding in the central through bore (3); The small end end face middle part of described wheel body (1) is provided with the counterbore (6) with central through bore (3) concentric, and the side of counterbore (6) is the transition fit face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203491134U CN202266654U (en) | 2011-09-17 | 2011-09-17 | Helical skew bevel gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203491134U CN202266654U (en) | 2011-09-17 | 2011-09-17 | Helical skew bevel gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202266654U true CN202266654U (en) | 2012-06-06 |
Family
ID=46157451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203491134U Expired - Fee Related CN202266654U (en) | 2011-09-17 | 2011-09-17 | Helical skew bevel gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202266654U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705478A (en) * | 2012-06-19 | 2012-10-03 | 无锡市百顺机械厂 | Synchronous gear of seven-roller primary straightening machine |
| CN104791421A (en) * | 2014-01-20 | 2015-07-22 | 广东柳菱宏通实业有限公司 | Driving spiral bevel gear of racing vehicle |
-
2011
- 2011-09-17 CN CN2011203491134U patent/CN202266654U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705478A (en) * | 2012-06-19 | 2012-10-03 | 无锡市百顺机械厂 | Synchronous gear of seven-roller primary straightening machine |
| CN104791421A (en) * | 2014-01-20 | 2015-07-22 | 广东柳菱宏通实业有限公司 | Driving spiral bevel gear of racing vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120606 Termination date: 20140917 |
|
| EXPY | Termination of patent right or utility model |