CN204937123U - Worm and gear combined electronic control device parts - Google Patents
Worm and gear combined electronic control device parts Download PDFInfo
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- CN204937123U CN204937123U CN201520662652.1U CN201520662652U CN204937123U CN 204937123 U CN204937123 U CN 204937123U CN 201520662652 U CN201520662652 U CN 201520662652U CN 204937123 U CN204937123 U CN 204937123U
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Abstract
The utility model provides a kind of worm and gear combined electronic control device parts, comprising: worm screw head; Tween drive shaft, described tween drive shaft comprises worm section, and one end of described worm section is provided with worm gear portion, and the other end of described worm section is free end, and described worm gear portion engages with described worm screw head; Drive worm gear, engage with the worm section of described tween drive shaft; Wherein, described worm screw head is for drawing the moment of torsion of motor and driving the worm gear portion of described tween drive shaft to rotate, and described worm gear portion drives described worm section and described driving worm gear wheel.The utility model can reduce number of parts, improves rigidity and the stability of actuating unit.
Description
Technical field
The utility model relates to electronic parking actuating unit, particularly relates to a kind of worm and gear combined electronic control device parts.
Background technology
Along with the development of auto-industry technology, electronic brake system (EPB, ElectricalParkBrake are called for short electronic parking system) has become a kind of new arrangement being widely used in manned vehicle.
Principle of work and the mechanical type parking brake of electronic parking system are similar, are all that the friction force produced by brake disc and brake facing reaches the effect controlling stopping brake, and just mode changes over electronically controlled mode from previous mechanical type parking brake pull bar.Electronic parking system is controlled by electric-controlled parts usually, applies braking force realize parking function by motor to wheel.In addition, some comparatively novel electronic parking systems by sensor automatic sensing and the current braking force needing to apply of measuring and calculating, and can also be increased by electric-controlled parts, motor etc. or reduce braking force.
The actuating unit of electronic parking system needs the moment of torsion of motor to amplify usually, finally provides enough gripping power to realize parking function.The actuating unit of electronic parking system traditional in prior art uses the parts such as belt, belt pulley, planetary wheel to realize the amplification of moment of torsion.But such scheme exists following shortcoming: the part needing greater number, cause cost higher; Belt pulley has hysteresis quality in transmission process, adds the time of braking; Actuating unit is relatively large at the thickness of wheel axial direction, thus affects the layout of car load factory environment part.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of worm and gear combined electronic control device parts, can reduce number of parts, improves rigidity and the stability of actuating unit.
For solving the problems of the technologies described above, the utility model provides a kind of worm and gear combined electronic control device parts, comprising:
Worm screw head;
Tween drive shaft, described tween drive shaft comprises worm section, and one end of described worm section is provided with worm gear portion, and the other end of described worm section is free end, and described worm gear portion engages with described worm screw head;
Drive worm gear, engage with the worm section of described tween drive shaft;
Wherein, described worm screw head is for drawing the moment of torsion of motor and driving the worm gear portion of described tween drive shaft to rotate, and described worm gear portion drives described worm section and described driving worm gear wheel.
According to an embodiment of the present utility model, described worm screw head and described motor direct-coupling are to draw moment of torsion.
According to an embodiment of the present utility model, described worm screw head by drive disk assembly and described motor indirect coupling to draw moment of torsion.
According to an embodiment of the present utility model, worm gear portion and the worm section of described tween drive shaft are one-body molded.
According to an embodiment of the present utility model, the worm gear portion of described tween drive shaft is welded on described worm section.
Compared with prior art, the utility model has the following advantages:
In the worm and gear combined electronic control device parts of the utility model embodiment, worm screw head can draw the moment of torsion of motor, worm screw head engages to form the first rank and combines with the worm gear portion of tween drive shaft, the worm section of tween drive shaft engages with driving worm gear and combines to form second-order, first rank combination and second-order combination carry out transmission to moment of torsion jointly, finally by driving worm gear by torque transfer to follow-up actuating unit.The scheme of the present embodiment decreases number of parts, is conducive to reducing mechanical complexity, saves cost.Furthermore, the scheme of the utility model embodiment enhances actuator stem force and stability, is conducive to reducing braking time.In addition, the scheme of the utility model embodiment also greatly reduces the axial dimension of whole mechanism, makes the part placement of car load factory have more elasticity.
Accompanying drawing explanation
Fig. 1 is the front elevation of the worm and gear combined electronic control device parts according to the utility model embodiment;
Fig. 2 is the perspective view of the worm and gear combined electronic control device parts according to the utility model embodiment;
Fig. 3 is the perspective view according to the tween drive shaft in the worm and gear combined electronic control device parts of the utility model embodiment.
Detailed description of the invention
Below in conjunction with specific embodiments and the drawings, the utility model is described in further detail, but should not limit protection domain of the present utility model with this.
Referring to figs. 1 to Fig. 3, the worm and gear combined electronic control device parts of the present embodiment comprise: worm screw 1, tween drive shaft 2 and drive worm gear 3.
Wherein, worm screw 1 is for drawing the moment of torsion of motor.Such as, worm screw 1 can with motor direct-coupling to draw moment of torsion, or worm screw 1 also can be coupled to draw moment of torsion by various suitable drive disk assembly and motor indirectly.
Tween drive shaft 2 can comprise worm section 21 and worm gear portion 22.Wherein, worm gear portion 22 is fixed on one end of worm section 21, and the other end of worm section 21 is free end, and worm gear portion 22 and worm screw 21 engages.As a nonrestrictive example, worm gear portion 22 and worm section 21 can be one-body molded, or worm gear portion 22 and worm section 21 also can be separate parts, and worm gear portion 22 is fixed by welding on worm section 21.
Wherein, the worm gear portion 22 of worm screw 1 and tween drive shaft 2 forms the first rank combination, the worm section 21 of tween drive shaft 2 with drive worm gear 3 to form second-order combine, the two jointly forms a second order worm and gear and combines.The moment of torsion of motor is via after worm screw 1 extraction, and the conduction of being combined by the first rank combination and second-order, finally exports to follow-up actuating unit by driving worm gear 3 by moment of torsion.
More specifically, after the moment of torsion of a worm screw 1 extraction motor, drive worm gear portion 22 to rotate, worm gear portion 22 drives worm section 21 to rotate, and worm section 21 drives and drives worm gear 3 to rotate, and drives worm gear 3 that moment of torsion is exported to follow-up actuating unit.
Above-mentioned worm and gear combined electronic control device parts, under the cooperation of miscellaneous part (such as ECU (Electrical Control Unit)), can realize parking function, and overcome the shortcoming of traditional emergency brake system.First, the number of parts of the worm and gear combined electronic control device parts of the present embodiment is few, reduces mechanical complexity, is conducive to saving cost; Secondly, the worm and gear combined electronic control device parts of the present embodiment enhance rigidity and the stability of actuating unit, are conducive to reducing braking time; In addition, the worm and gear combined electronic control device parts of the present embodiment greatly reduce axial size and volume, make the part placement of car load factory have more elasticity.
Although the utility model with preferred embodiment openly as above; but it is not for limiting the utility model; any those skilled in the art are not departing from spirit and scope of the present utility model; can make possible variation and amendment, the scope that therefore protection domain of the present utility model should define with the utility model claim is as the criterion.
Claims (5)
1. worm and gear combined electronic control device parts, is characterized in that, comprising:
Worm screw head;
Tween drive shaft, described tween drive shaft comprises worm section, and one end of described worm section is provided with worm gear portion, and the other end of described worm section is free end, and described worm gear portion engages with described worm screw head;
Drive worm gear, engage with the worm section of described tween drive shaft;
Wherein, described worm screw head is for drawing the moment of torsion of motor and driving the worm gear portion of described tween drive shaft to rotate, and described worm gear portion drives described worm section and described driving worm gear wheel.
2. worm and gear combined electronic control device parts according to claim 1, is characterized in that, described worm screw head and described motor direct-coupling are to draw moment of torsion.
3. worm and gear combined electronic control device parts according to claim 1, is characterized in that, described worm screw head by drive disk assembly and described motor indirect coupling to draw moment of torsion.
4. worm and gear combined electronic control device parts according to claim 1, it is characterized in that, worm gear portion and the worm section of described tween drive shaft are one-body molded.
5. worm and gear combined electronic control device parts according to claim 1, it is characterized in that, the worm gear portion of described tween drive shaft is welded on described worm section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520662652.1U CN204937123U (en) | 2015-08-28 | 2015-08-28 | Worm and gear combined electronic control device parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520662652.1U CN204937123U (en) | 2015-08-28 | 2015-08-28 | Worm and gear combined electronic control device parts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204937123U true CN204937123U (en) | 2016-01-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520662652.1U Active CN204937123U (en) | 2015-08-28 | 2015-08-28 | Worm and gear combined electronic control device parts |
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| Country | Link |
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| CN (1) | CN204937123U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106314407A (en) * | 2016-06-06 | 2017-01-11 | 浙江万安科技股份有限公司 | Clamp type electronic parking speed reduction structure |
| CN110696787A (en) * | 2019-10-28 | 2020-01-17 | 北京三快在线科技有限公司 | Chassis and vehicle |
-
2015
- 2015-08-28 CN CN201520662652.1U patent/CN204937123U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106314407A (en) * | 2016-06-06 | 2017-01-11 | 浙江万安科技股份有限公司 | Clamp type electronic parking speed reduction structure |
| CN110696787A (en) * | 2019-10-28 | 2020-01-17 | 北京三快在线科技有限公司 | Chassis and vehicle |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |