CN202732872U - Linear motion device - Google Patents
Linear motion device Download PDFInfo
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- CN202732872U CN202732872U CN201220417148.1U CN201220417148U CN202732872U CN 202732872 U CN202732872 U CN 202732872U CN 201220417148 U CN201220417148 U CN 201220417148U CN 202732872 U CN202732872 U CN 202732872U
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- gear
- linear motion
- motion device
- tooth bar
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Abstract
The utility model discloses a linear motion device. The linear motion device comprises a housing, a gear, a worm and a rack, wherein the gear can be rotatably fixed on the housing; the worm is matched with the upper end of the gear for use; the rack is matched with the lower end of the gear for use; a pushing-out rod is arranged on the rack; the gear is used for driving the rack to move; a bevel gear is arranged on the upper end of the gear; and the diameter of the upper end of the gear is bigger than that of the lower end of the gear; in a using process, the pushing-out rod is arranged on a corresponding position of a vertical pitching car lamp, i.e., a position for pushing the vertical pitching car lamp to move when the pushing-out rod is pushed out; and then, a motor is used for driving the worm to rotate to drive the gear to rotate; the gear rotates to drive the rack to move, and the pushing-out rod is pushed out when the rack moves; and finally, the pushing-out rod pushes the vertical pitching car lamp to carry out pitching motion. In the whole transmission process, the linear motion device disclosed by the utility model can increase motor output force. Simultaneously, the cost of the product further can be reduced, and materials are saved and consumption is saved.
Description
Technical field
The utility model relates to the straight-line motion mechanism technical field, relates in particular to a kind of linear motion device.
Background technique
Self adaption car light steering system can be expanded driver's visual angle, improves the Security of driving.In this system, have car light and horizontally rotate and two kinds of adaptation functions of vertical pitching, wherein the vertical pitching function of lamp holder mainly is to drive to realize by linear stepping motor at present.Motor receives the controller instruction, promote lamp holder on the whole, lower pitching to be to adapt to different road surface situations.
Because the volume weight of lamp holder own is larger, in addition during the lamp holder pitching movement lamp holder horizontally rotate final controlling element also as its load, therefore the ouput force of linear stepping motor is had relatively high expectations.Satisfy the lamp holder loading demand, can only select generally that volume is large, square frequently higher these of characteristic have the motor of high ouput force, but can cause like this consumable quantity of motor larger, expensive, especially used rareearth magnetic material and the coil copper material of motor, recently cost price is quite high, and in constantly increasing always.
Therefore, how providing a kind of linear motion device, to realize the increase of motor ouput force, is the technical problem that present those skilled in the art need to be resolved hurrily.
The model utility content
In view of this, the purpose of this utility model is to provide a kind of linear motion device, to realize the increase of motor ouput force.
In order to achieve the above object, the utility model provides following technological scheme:
A kind of linear motion device, the tooth bar that comprises shell, the rotating worm screw that is fixed on gear on the described shell, is used with the upper end of described gear, is used with the lower end of described gear, has push-off pin on the described tooth bar, described gear is used for driving described tooth bar and moves, the upper end of described gear is helical gear, and the diameter of the upper end of described gear is greater than the diameter of the lower end of described gear.
Preferably, said gear is cluster gear, and the lower end of described gear is that straight-tooth cooperates with described tooth bar.
Preferably, said gear is two, respectively the symmetrical both sides that are arranged on described worm screw.
Preferably, the both sides of above-mentioned tooth bar all have the tooth bar face, are used with two described gears respectively.
Preferably, above-mentioned tooth bar slidably is arranged in the described shell by guide rail.
Preferably, above-mentioned linear motion device also comprises the motor that drives described worm screw rotation.
Preferably, said motor is stepper motor.
Preferably, above-mentioned push-off pin movably and after mobile can be fixedly installed on the described tooth bar.
The linear motion device that the utility model provides, the tooth bar that comprises shell, the rotating worm screw that is fixed on gear on the described shell, is used with the upper end of described gear, is used with the lower end of described gear, has push-off pin on the described tooth bar, described gear is used for driving described tooth bar and moves, the upper end of described gear is helical gear, and the diameter of the upper end of described gear is greater than the diameter of the lower end of described gear.During use, push-off pin is placed on the relevant position of vertical pitching car light, namely when releasing, push-off pin can promote the position that this carries out pitching movement with vertical pitching car light, then a motor driving worm screw is set is rotated, driven gear rotates, gear rotates the band carry-over bar and moves, and when tooth bar moves push-off pin is released, and then push-off pin promotes this vertical pitching car light is carried out pitching movement.In whole transmission process, the output power of motor is certain, this power is delivered to the upper end of gear by worm screw, power equaled angular velocity and multiply by moment this moment, according to principle of conservation of energy, power is constant, because the angular velocity of the top and bottom of gear is the same, the moment of gear top and bottom also is the same so, the radius of the upper end of gear is greater than the radius of the lower end of gear, while moment equals radius and multiply by power, the power that acts on so the upper end of gear is that the power of the upper end of gear is the ouput force of motor own less than the power of the lower end of gear, and the power of the lower end of gear is the power of carrying out pitching movement be used to driving vertical pitching car light, can illustrate that so the utility model provides linear motion device can realize the increase of motor ouput force.Can also reduce simultaneously the cost of product, and materials saving.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes is embodiments more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The structural representation of the linear motion device that Fig. 1 provides for the utility model embodiment;
The sectional structure schematic representation of the linear motion device that Fig. 2 provides for the utility model embodiment;
The plan structure schematic representation of the linear motion device that Fig. 3 provides for the utility model embodiment;
The tooth bar that Fig. 4 provides for the utility model embodiment and the linkage structure schematic representation of guide rail;
The structural representation of the gear that Fig. 5 provides for the utility model embodiment.
Among upper Fig. 1-5:
Embodiment
The utility model embodiment provides a kind of linear motion device, to realize the increase of motor ouput force.
For the purpose, technological scheme and the advantage that make the utility model embodiment clearer, below in conjunction with the accompanying drawing among the utility model embodiment, technological scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, rather than whole embodiments.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment who obtains under the creative work prerequisite, all belong to the scope of the utility model protection.
Please refer to Fig. 1 to Fig. 3, the structural representation of the linear motion device that Fig. 1 provides for the utility model embodiment; The sectional structure schematic representation of the linear motion device that Fig. 2 provides for the utility model embodiment; The plan structure schematic representation of the linear motion device that Fig. 3 provides for the utility model embodiment.
The linear motion device that the utility model embodiment provides, the tooth bar 7 that comprises shell 1, the rotating worm screw 4 that is fixed on gear 2 on the shell 1, is used with the upper end of gear 2, is used with the lower end of gear 2, has push-off pin 6 on the tooth bar 7, gear 2 is used for driving tooth bar 7 and moves, the upper end of gear 2 is helical gear 9, and the diameter of the upper end of gear 2 is greater than the diameter of the lower end of gear 2.
During use, push-off pin 6 is placed on the relevant position of vertical pitching car light, namely when releasing, push-off pin 6 can promote the position that this carries out pitching movement with vertical pitching car light, then a motor 5 driving worm screws 4 are set is rotated, driven gear 2 rotates, gear 2 rotates band carry-over bars 7 and moves, and when tooth bar 7 moves push-off pin 6 is released, and then push-off pin 6 promotes this vertical pitching car light is carried out pitching movement.In whole transmission process, the output power of motor 5 is certain, this power is delivered to the upper end of gear 2 by worm screw 4, power equaled angular velocity and multiply by moment this moment, according to principle of conservation of energy, power is constant, because the angular velocity of the top and bottom of gear 2 is the same, the moment of the top and bottom of gear 2 also is the same so, the radius of the upper end of gear 2 is greater than the radius of the lower end of gear, while moment equals radius and multiply by power, the power that acts on so the upper end of gear 2 is that the power of the upper end of gear 2 is the ouput force of motor 5 own less than the power of the lower end of gear 2, and the power of the lower end of gear 2 is the power of carrying out pitching movement be used to driving vertical pitching car light, can illustrate that so the utility model provides linear motion device can realize the increase of motor 5 ouput forces.Can also reduce simultaneously the cost of product, and materials saving.
One rooted tooth wheel shaft 3 is set on the shell 1, then offers a hole at the rotating center place of gear 2, during use gear 2 is put on the gear shaft 3, just can realize that the rotating of gear 2 is fixed on the shell 1.
Please refer to Fig. 5, the structural representation of the gear that Fig. 5 provides for the utility model embodiment.Concrete, gear 2 is cluster gear, and the lower end of gear 2 and tooth bar 7 that is to say that the lower end of gear 2 is spur gear 10, and tooth bar 7 are spur rack for straight-tooth cooperates.Like this, the lower end of gear 2 and tooth bar 7 are the straight-tooth transmission, and the production and processing of straight-tooth is very simple, is conducive to reduce the cost of product.
Concrete, gear 2 is two, symmetrical both sides that are arranged on worm screw 4 respectively, at this moment, if the both sides of tooth bar 7 all have the tooth bar face, be used with two gears 2 respectively, the moment mean allocation of worm screw 4 transmissions output can be arrived the both sides of gear 2, reduce gear load, improved the working life of gear 2, and because whole driving mechanism symmetrical balance, so Output force wave is less, output steadily simultaneously can be shared the ouput force of worm screw 4, jointly so that the output procedure of worm screw 4 can be carried out stably.
Can certainly the tooth bar face be set in a side of tooth bar 7, opposite side arranges slideway, and slideway slidably contacts with shell 1, and tooth bar face and one of them gear 2 are used, and slideway then is used for guaranteeing the tooth bar traveling comfort.
Please refer to Fig. 4, the tooth bar that Fig. 4 provides for the utility model embodiment and the linkage structure schematic representation of guide rail.Concrete, tooth bar 7 slidably is arranged in the shell 1 by guide rail 8, offer a groove that holds guide rail 8 in the inside of tooth bar 7, offer through hole on the guide rail 8, be provided with stationary axle on the shell 1, guide rail 8 is put on the stationary axle just guide rail 8 can be fixed, certainly guide rail 8 also can directly be welded on the shell 1, then tooth bar 7 is placed on the guide rail 8, tooth bar 7 just can slide in shell 1 like this, increases the stationarity of tooth bar 7 motions by guide rail 8 is set.
Concrete, linear motion device also comprises the motor 5 that drives worm screw 4 rotations, adopts motor 5 as drive unit, and noise is smaller, simultaneously motor 5 is stepper motor, in order to can control accurately the straight line output speed of the linear drive that the utility model embodiment provides.
Concrete, push-off pin 6 movably is arranged on the tooth bar 7, and can fix after mobile, can realize like this release distance that push-off pin 6 is different, has higher flexibility.For push-off pin 6 can better be connected with vertical pitching car light, generally the end in the release of push-off pin 6 is provided with ball, and push-off pin 6 also can be known as club.
To the above-mentioned explanation of the disclosed embodiments, make related domain professional and technical personnel can realize or use the utility model.Multiple modification to these embodiments will be apparent concerning those skilled in the art, and General Principle as defined herein can in the situation that does not break away from spirit or scope of the present utility model, realize in other embodiments.Therefore, the utility model will can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (8)
1. linear motion device, it is characterized in that, the tooth bar (7) that comprises shell (1), the rotating worm screw (4) that is fixed on gear (2) on the described shell (1), is used with the upper end of described gear (2), is used with the lower end of described gear (2)
Have push-off pin (6) on the described tooth bar (7), it is mobile that described gear (2) is used for driving described tooth bar (7),
The upper end of described gear (2) is helical gear (9), and the diameter of the upper end of described gear (2) is greater than the diameter of the lower end of described gear (2).
2. linear motion device according to claim 1 is characterized in that, described gear (2) is cluster gear, and the lower end of described gear cooperates for straight-tooth with described tooth bar (7).
3. linear motion device according to claim 1 is characterized in that, described gear (2) is two, respectively the symmetrical both sides that are arranged on described worm screw (4).
4. linear motion device according to claim 3 is characterized in that, the both sides of described tooth bar (7) all have the tooth bar face, is used with two described gears (2) respectively.
5. linear motion device according to claim 1 is characterized in that, described tooth bar (7) slidably is arranged in the described shell (1) by guide rail (8).
6. linear motion device according to claim 1 is characterized in that, also comprises driving the motor (5) that described worm screw (4) is rotated.
7. linear motion device according to claim 6 is characterized in that, described motor (5) is stepper motor.
8. linear motion device according to claim 1 is characterized in that, described push-off pin (6) fixable being arranged on the described tooth bar (7) movably and after mobile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220417148.1U CN202732872U (en) | 2012-08-21 | 2012-08-21 | Linear motion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220417148.1U CN202732872U (en) | 2012-08-21 | 2012-08-21 | Linear motion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202732872U true CN202732872U (en) | 2013-02-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220417148.1U Expired - Lifetime CN202732872U (en) | 2012-08-21 | 2012-08-21 | Linear motion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202732872U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107862950A (en) * | 2018-01-09 | 2018-03-30 | 李新源 | Levelling device for conservation of momentum experiment |
| CN108306450A (en) * | 2018-01-19 | 2018-07-20 | 源秩科技（上海）有限公司 | Line angle coupling driving mechanism |
-
2012
- 2012-08-21 CN CN201220417148.1U patent/CN202732872U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107862950A (en) * | 2018-01-09 | 2018-03-30 | 李新源 | Levelling device for conservation of momentum experiment |
| CN107862950B (en) * | 2018-01-09 | 2019-08-30 | 徐伟明 | Levelling device for conservation of momentum experiment |
| CN108306450A (en) * | 2018-01-19 | 2018-07-20 | 源秩科技（上海）有限公司 | Line angle coupling driving mechanism |
| CN108306450B (en) * | 2018-01-19 | 2019-11-22 | 源秩科技（上海）有限公司 | Line angle coupling driving mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 4 / F, building 1, No.14 Jiuxianqiao Road, Chaoyang District, Beijing 100020 Patentee after: Beijing Jingwei Hengrun Technology Co.,Ltd. Address before: 100101 Beijing city Chaoyang District Anxiang Beili 11 B block 8 layer Patentee before: Beijing Jingwei HiRain Technologies Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130213 |