CN202971785U - Roller-type external thread lead screw component - Google Patents
Roller-type external thread lead screw component Download PDFInfo
- Publication number
- CN202971785U CN202971785U CN201220551742.XU CN201220551742U CN202971785U CN 202971785 U CN202971785 U CN 202971785U CN 201220551742 U CN201220551742 U CN 201220551742U CN 202971785 U CN202971785 U CN 202971785U
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- CN
- China
- Prior art keywords
- roller
- lead screw
- rolling wheel
- wheel support
- leading screw
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- Expired - Fee Related
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Abstract
The utility model discloses a roller-type external thread lead screw component, which comprises a bracket, at least three rivets, at least three rollers and at least three roller brackets, wherein the rollers are arranged on the roller brackets in a sleeving manner; the rivets penetrate through central through holes of the roller brackets and are fixedly connected inside the bracket; backing plates are installed at the upper ends or lower ends of the roller brackets; roll balls are distributed on two sides of the interior of every roller bracket symmetrically; and the rollers are uniformly distributed in an axial direction in a stepped shape, nitrided steel is used to perform surface nitriding treatment, and the bracket is I-shaped. The roller-type external thread lead screw component reduces the internal and external thread adjoining plane greatly, lowers the transmission resistance, saves the cost and improves the work efficiency of the product simultaneously; and meanwhile, the product realizes miniaturization, the working condition of the roller lead screw is good, and the roller lead screw component can be popularized and applied to miniaturization product design.
Description
Technical field
The utility model relates to the mechanical transmission mechanism field, relates in particular to a kind of roller type outside thread leading screw assembly.
Background technique
Threaded screw rod transmission straight-line motion mechanism is widely used, and can be used for the fields such as adjusting of motor flow control valve switch size.the threaded screw rod bearing capacity is large, self-locking performance is arranged, specification is many and can be designed to non-standard, manufacturing is easy, relative low price and being used in a large number, but the shortcoming of threaded screw rod maximum is because its sliding friction type of belt drive, this type of belt drive mechanical efficiency is low, need select powerful drive motor to drive to make up the poor efficiency of threaded screw rod transmission, sometimes also need increase reduction gear and lower high-power driving motor output speed to reach, improve the requirement of output torque, these have restricted the miniaturization of mechanism, cause the straight-line motion mechanism volume weight to increase, this is very disadvantageous to the product specification that the volume weight requirement is arranged, therefore be necessary to improve by improving the leading screw design transmission efficiency of leading screw.
The model utility content
For solving the problems of the technologies described above, the utility model provides a kind of roller type outside thread leading screw assembly, is used for solving the problems such as the power consumption of conventional threads leading screw is high, transmission efficiency is low.
The purpose of this utility model is achieved by following technical solution:
A kind of roller type outside thread leading screw assembly comprises support, rivet, roller and rolling wheel support, and described roller housing is contained on rolling wheel support, and rivet is fixed in support after passing the rolling wheel support central through bore, and described rolling wheel support upper end or lower end are equipped with backing plate.
Described rivet, roller and rolling wheel support number are at least three.
In described rolling wheel support, bilateral symmetry is placed with ball.
It is uniform that described roller is spiral step shape in the axial direction.
Described roller adopts the surface of nitriding steel using nuclear nitriding to process.
Described support is " work " font.
compared with prior art, the roller type outside thread leading screw assembly that the utility model provides, uniformly on one of leading screw outside thread pitch space be provided with at least three and same be with trapezoidal annular grooved roller, roller and inner trapezoidal thread with trapezoidal circular groove screw, reduced greatly the internal and external threads mating face, the rolling friction mode reduces the transmission resistance, need not to select powerful drive motor to drive, effectively promoted transmission efficiency when saving cost, common trapezoidal thread transmission efficiency approximately 30～40%, and the transmission efficiency of the roller type outside thread leading screw assembly that the utility model provides can reach 60%～70%.
Description of drawings
Fig. 1 is the structural representation of traditional leading screw.
Fig. 2 is the utility model perspective view.
Fig. 3 is the utility model overall structure schematic diagram.
Fig. 4 is the structural representation of roller in the utility model.
In figure: 1-roller, 2-ball, 3-anchor pole, 4-backing plate, 5-support, 6-rolling wheel support.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is further illustrated, but scope required for protection have more than be confined to described:
traditional threaded screw rod as shown in Figure 1, outside thread on it and internal thread (not shown) screw thread turns and are not less than four circles, the internal and external threads bonded area is larger, can produce larger sliding friction transmission resistance, cause transmission efficiency low, need select powerful drive motor to drive, sometimes also need increase the parts such as reduction gear and lower high-power driving motor output speed to reach, improve the requirement of output torque, this has just restricted the miniaturization of mechanism, cause the straight-line motion mechanism volume and weight to increase, be unfavorable for production and the processing of small-sized volume product.
As shown in Fig. 2,3 and 4, a kind of roller type outside thread leading screw assembly that the utility model provides comprises support 5, rivet 3, roller 1 and rolling wheel support 6; Described roller 1 is sleeved on rolling wheel support 6, and rivet 3 is fixed in support 5 after passing rolling wheel support 6 central through bores, and described rolling wheel support 6 upper ends or lower end are equipped with backing plate 4.By rivet 3, roller 1 is arranged on support 5, in transmission process, roller 1 has reduced roller 1 junction point stress and has concentrated around rivet 3 rotations, reaches the purpose of transmission.
Described rivet 3, roller 1 and rolling wheel support 6 numbers are at least three, and such layout can more effectively reduce the area that screws of screw thread, reduce the transmission resistance, can effectively promote transmission efficiency.
Because roller 1 bears very large thrust load, be placed with ball 2 in the interior bilateral symmetry of described rolling wheel support 6, play the effect of thrust-bearing, can bear axially positive and negative two direction axial forces, effectively promote stability of the present utility model.
It is uniform that described roller 1 is spiral step shape in the axial direction, trapezoidal groove combination with one another on it forms a groove that can be complementary with internal thread, power on rotating power being changed into axially, the leading screw internal thread (by axial constraint) that rotarily drives of roller 1 is done straight line motion.
Described roller 1 adopts the surface of nitriding steel using nuclear nitriding to process.Because bonding area greatly reduces, the load that need bear on roller 1 unit area is large, so roller adopts the surface of nitriding steel using nuclear nitriding to process to improve allowable stress, has effectively promoted Security of the present utility model.
Described support 5 is " work " font, and its purpose is convenient installation roller 1 and rolling wheel support 6, and roller 1 assembly all can be arranged on same parts, has effectively promoted stability of the present utility model.
Embodiment: be furnished with three rivets 3, three rollers 1 and three rolling wheel supports 6 on this assembly, roller 1 adopts the surface of nitriding steel using nuclear nitriding to process, and a rivet 3, a roller 1 and a rolling wheel support 6 are one group of roll wheel assembly.Described roller 1 is sleeved on rolling wheel support 6, and rivet 3 is fixed in support 5 after passing rolling wheel support 6 central through bores.In the minimum roll wheel assembly of horizontal position, at its two backing plates 4 of rolling wheel support 6 upper ends installations, in a horizontal position roll wheel assembly placed in the middle, rolling wheel support at it respectively is equipped with a slice backing plate 4 in both sides Shang Xia 6, in the highest roll wheel assembly of horizontal position, rolling wheel support 6 lower ends at it are equipped with two backing plates 4, have so just formed the layout that roll wheel assembly is spiral step shape, and the leading screw internal thread (by axial constraint) that rotarily drives of roll wheel assembly is done straight line motion.Be placed with ball 2 in the interior bilateral symmetry of described rolling wheel support 6, play the effect of thrust-bearing, can bear axially positive and negative two direction axial forces.In transmission process, roller 1 has reduced roller 1 junction point stress and has concentrated around rivet 3 rotations, has extended the working life of this assembly.Such layout can more effectively reduce the area that screws of screw thread, reduces the transmission resistance, can effectively promote transmission efficiency.
Claims (6)
1. roller type outside thread leading screw assembly, comprise support (5), rivet (3), roller (1) and rolling wheel support (6), it is characterized in that: described roller (1) is sleeved on rolling wheel support (6), rivet (3) is fixed in support (5) after passing rolling wheel support (6) central through bore, and described rolling wheel support (6) upper end or lower end are equipped with backing plate (4).
2. roller type outside thread leading screw assembly according to claim 1, it is characterized in that: described rivet (3), roller (1) and rolling wheel support (6) number are at least three.
3. roller type outside thread leading screw assembly according to claim 1 and 2, it is characterized in that: the interior bilateral symmetry of described rolling wheel support (6) is placed with ball (2).
4. roller type outside thread leading screw assembly according to claim 1 and 2, it is characterized in that: it is uniform that described roller (1) is spiral step shape in the axial direction.
5. roller type outside thread leading screw assembly according to claim 1 and 2, is characterized in that: described roller (1) employing surface of nitriding steel using nuclear nitriding processing.
6. roller type outside thread leading screw assembly according to claim 1, it is characterized in that: described support (5) is " work " font.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220551742.XU CN202971785U (en) | 2012-10-25 | 2012-10-25 | Roller-type external thread lead screw component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220551742.XU CN202971785U (en) | 2012-10-25 | 2012-10-25 | Roller-type external thread lead screw component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202971785U true CN202971785U (en) | 2013-06-05 |
Family
ID=48512862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220551742.XU Expired - Fee Related CN202971785U (en) | 2012-10-25 | 2012-10-25 | Roller-type external thread lead screw component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202971785U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103434825A (en) * | 2013-08-01 | 2013-12-11 | 黄平 | Press wheel component capable of adjusting rotating speed |
| CN107035835A (en) * | 2017-04-28 | 2017-08-11 | 沈阳兴华航空电器有限责任公司 | It is a kind of to become the tripod assembly pulley rolling screw pair for rotating to be linear motion |
-
2012
- 2012-10-25 CN CN201220551742.XU patent/CN202971785U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103434825A (en) * | 2013-08-01 | 2013-12-11 | 黄平 | Press wheel component capable of adjusting rotating speed |
| CN107035835A (en) * | 2017-04-28 | 2017-08-11 | 沈阳兴华航空电器有限责任公司 | It is a kind of to become the tripod assembly pulley rolling screw pair for rotating to be linear motion |
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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: 20130605 Termination date: 20211025 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |