CN214304091U - Electric actuator with driving shaft buffer assembly, turbocharging system and commercial vehicle - Google Patents
Electric actuator with driving shaft buffer assembly, turbocharging system and commercial vehicle Download PDFInfo
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- CN214304091U CN214304091U CN202120123170.4U CN202120123170U CN214304091U CN 214304091 U CN214304091 U CN 214304091U CN 202120123170 U CN202120123170 U CN 202120123170U CN 214304091 U CN214304091 U CN 214304091U
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Abstract
The utility model discloses a drive shaft buffering subassembly electric actuator, turbocharging system and commercial car have. The electric actuator with a drive shaft damping assembly comprises: the motor driving device comprises a shell, a motor, a circuit board and a driving output assembly, wherein the circuit board is electrically connected with the motor, the driving output assembly is in transmission connection with the motor, and a first limiting part is arranged in the shell corresponding to the driving output assembly; the drive output assembly includes: the sector gear is provided with a second limiting piece and is in transmission connection with the motor; the driving shaft is connected with the sector gear and driven by the sector gear to coaxially rotate, and one end of the driving shaft extends out of the shell; and the elastic piece is provided with two opposite ends, wherein one end of the elastic piece is arranged on the first limiting piece, and the other end of the elastic piece is arranged on the second limiting piece. The utility model discloses when effectively solving exhaust gas circulation valve closure, because the weight of valve self can drive the valve and close rapidly, cause the problem of damage to exhaust gas circulation passageway and valve.
Description
Technical Field
The utility model relates to a waste gas circulation system field of commercial car especially relates to a have drive shaft buffering subassembly electric actuator, turbocharging system and commercial car.
Background
With the development of the industrial technology of the commercial vehicle, the electric control actuator is used as an important component of the commercial vehicle, and the electric equipment has certain influence on the development of the automobile industry.
Under the prospect that environmental protection and energy-conservation were paid attention to increasingly, commercial car can install exhaust gas circulation system in engine department, when suddenly violently refueling, fuel in the engine can incomplete combustion to can be mingled with certain combustible substance in the waste gas, the valve through electric actuator control exhaust gas circulation system department is opened this moment, makes partial waste gas get into the engine and burns again, has reduced carminative pollution promptly, makes exhaust gas cyclic utilization again, has played energy-conserving effect.
When the exhaust gas circulation valve is opened, the valve can rotate at a constant speed along with the rotation of the motor, and when the exhaust gas circulation valve is closed, the valve can be driven to be quickly closed due to the self weight of the valve, so that the exhaust gas circulation channel and the valve are damaged.
SUMMERY OF THE UTILITY MODEL
Therefore, the embodiment of the utility model provides a have drive shaft buffering subassembly electric actuator, turbocharging system and commercial car, when effectively solving exhaust gas circulation valve and closing, because the weight of valve self can drive the valve and close rapidly, cause the problem of damage to exhaust gas circulation passageway and valve.
On the one hand, the embodiment of the utility model provides a have drive shaft buffering subassembly electric actuator, include: the motor driving device comprises a shell, a motor, a circuit board and a driving output assembly, wherein the circuit board is electrically connected with the motor, the driving output assembly is in transmission connection with the motor, and a first limiting part is arranged in the shell corresponding to the driving output assembly; the drive output assembly includes: the sector gear is provided with a second limiting piece and is in transmission connection with the motor; the driving shaft is connected with the sector gear and driven by the sector gear to coaxially rotate, and one end of the driving shaft extends out of the shell; and the elastic piece is provided with two opposite ends, wherein one end of the elastic piece is arranged on the first limiting piece, and the other end of the elastic piece is arranged on the second limiting piece.
The technical effect achieved after the technical scheme is adopted is as follows: an elastic member is added between the sector gear and the driving shaft, and the elastic member enables the driving shaft to be in a stable and continuous working state when the driving shaft rotates.
In an embodiment of the present invention, the first position-limiting member has a plurality of positions, and one end of the elastic member is disposed in one of the positions.
The technical effect achieved after the technical scheme is adopted is as follows: when one end of the elastic piece is arranged in different clamping positions, the torque generated by the elastic piece during rotation is different, and one end of the elastic piece can be installed on the required clamping position according to different requirements, so that the torque of the elastic piece achieves the required effect.
In an embodiment of the present invention, the electric actuator further includes: the angle detection assembly is arranged between the sector gear and the circuit board so as to detect the rotation angle of the sector gear.
The technical effect achieved after the technical scheme is adopted is as follows: through angle detection subassembly, can be right sector gear pivoted angle monitors to know exhaust gas circulation valve's open-close state.
In an embodiment of the present invention, the angle detecting unit includes: the rotating shaft is connected with the sector gear and driven by the sector gear to coaxially rotate; and the angle sensor is arranged between the rotating shaft and the circuit board.
The technical effect achieved after the technical scheme is adopted is as follows: the angle sensor is fixed to the rotating shaft, the rotating shaft is fixed to the sector gear, and when the sector gear rotates, the angle sensor also rotates along with the sector gear, so that the rotating angle of the sector gear is monitored.
In one embodiment of the present invention, the sector gear is provided with a shaft hole, and the shaft hole is internally provided with a driving matching key position and a rotating matching key position; the driving shaft is provided with a first connecting key which is in matched connection with the driving matching key position; the rotating shaft is provided with a second connecting piece which is connected with the rotating matching key position in a matching way.
The technical effect achieved after the technical scheme is adopted is as follows: the driving shaft is fixed on the sector gear through the matching of the driving matching key position and the first connecting key; the rotating shaft is fixed on the sector gear through the matching of the rotation matching key position and the second connecting piece, so that the driving shaft, the sector gear and the rotating shaft rotate coaxially.
In one embodiment of the present invention, the driving matching key is at least one protruding key extending into the shaft hole; the first connecting key is at least one matched connecting groove arranged at the end part of the driving shaft; the rotary matching key position is at least one groove key position arranged in the shaft hole; the second connecting piece is at least one connecting protruding piece which is arranged at the end part of the rotating shaft and matched with the second connecting piece.
The technical effect achieved after the technical scheme is adopted is as follows: the driving shaft is better fixed on the sector gear through the matching of at least one convex key position extending into the shaft hole and the groove at the end part of the driving shaft; the rotation matching key is at least one groove key arranged on the shaft hole and at least one connecting bulge matched with the end part of the rotation shaft, so that the rotation shaft is better fixed on the sector gear
In an embodiment of the present invention, the angle sensor includes: the magnetic part is fixedly connected to one end, far away from the sector gear, of the rotating shaft; and the Hall sensor is arranged on the circuit board and corresponds to the magnetic piece.
The technical effect achieved after the technical scheme is adopted is as follows: the magnetic part is fixedly connected with the sector gear, the magnetic part can rotate along with the sector gear, the rotation of the magnetic part can cause the change of a magnetic field, and the Hall sensor can know the deflection angle of the sector gear at the moment.
In another aspect, an embodiment of the present invention provides a turbocharger system, which is used in the field of commercial vehicles, and the turbocharger system has the electric actuator according to any one of the above embodiments.
The technical effect achieved after the technical scheme is adopted is as follows: the turbocharging system is provided with the electric control actuator, and is beneficial to the turbocharging system to normally work for a long time.
In an embodiment of the present invention, the driving shaft of the electric actuator is connected to a valve shaft of an exhaust gas circulation pipe of the turbocharger system to control the valve to be opened or closed.
The technical effect achieved after the technical scheme is adopted is as follows: the driving shaft of the electric control actuator is connected with a valve shaft of an exhaust gas circulating pipeline of the turbocharging system so as to control the valve to be opened or closed.
In another aspect, an embodiment of the present invention provides a commercial vehicle, which has the turbocharging system according to any one of the above embodiments.
The technical effect achieved after the technical scheme is adopted is as follows: the commercial vehicle is provided with the turbocharging system, so that the efficiency of the commercial vehicle on waste gas treatment can be improved.
In summary, the above embodiments of the present application may have one or more of the following advantages or benefits: i) the driving shaft is in a stable and continuous working state when rotating through an elastic piece; ii) the control efficiency of the electric actuator to open or close the valve of the turbo charging system can be improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an electric actuator 100 with a driving shaft buffer assembly according to an embodiment of the present invention.
Fig. 2 is an exploded view of the electric actuator 100 shown in fig. 1.
Fig. 3 is a schematic structural view of the housing 10 shown in fig. 1.
Fig. 4 is a schematic view illustrating a connection relationship between the driving shaft 20, the sector gear 30, the elastic member 40, the angle detecting assembly 50 and the circuit board 60 shown in fig. 2.
Fig. 5 is a schematic structural diagram of the angle detection assembly 50 shown in fig. 2.
Fig. 6 is a schematic view of the sector gear 30 shown in fig. 2.
Figure 7 is a bottom view of the sector gear 30 shown in figure 2.
Fig. 8 is a schematic structural view of the drive shaft 20 shown in fig. 2.
Description of the main element symbols:
100 is an electric actuator; 10 is a shell; 11 is a first limiting member; 11A is a first clamping position; 11B is a second card position; 12 is a driving shaft mounting position; 20 is a driving shaft; 21 is a first connecting bond; 30 is a sector gear; 31 is a second limiting member; 32 is a shaft hole; 33 is a driving matching key position; 34 is a rotary matching key position; 40 is an elastic piece; 50 is an angle detection component; 51 is a rotating shaft; 52 is a magnetic member; 53 is a mounting hole; 54 is a second connecting piece; 55 is a driving shaft matching key; 60 is a circuit board; 70 is a driving shaft fixing component; and 80 is a motor.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
[ first embodiment ] A method for manufacturing a semiconductor device
Referring to fig. 1, an electric actuator 100 with a drive shaft buffer assembly according to an embodiment of the present invention is provided, where the electric actuator 100 with a drive shaft buffer assembly includes: a housing 10 and a drive output assembly; wherein one end of the drive output assembly protrudes out of the housing 10.
Specifically, referring to fig. 2, a motor 80, a circuit board 60 electrically connected to the motor 80, and a driving output assembly in transmission connection with the motor 80 are installed inside the housing 10, and a first limiting member 11 is disposed inside the housing 10 at a position corresponding to the driving output assembly.
Further, the drive output assembly includes, for example: a sector gear 30, a drive shaft 20, and an elastic member 40. Wherein, the sector gear 30 is in transmission connection with the motor 80; the drive shaft 20 is connected to the sector gear and is driven by the sector gear to rotate coaxially therewith. For example, when the motor 80 starts to rotate, the sector gear 30 is driven to rotate by the transmission assembly, and the sector gear 30 drives the driving shaft 20 to rotate because the sector gear 30 is fixedly connected with the driving shaft.
Specifically, referring to fig. 3, the housing 10 includes, for example: a drive shaft mounting location 12 and a first stop 11. Wherein the driving shaft 20 passes through the driving shaft installation site 12 such that one end of the driving shaft 20 protrudes out of the housing 10.
Specifically, referring to fig. 3 and 4, the sector gear 30 is provided with a second stopper 31. One end of the elastic member 40 is connected to the first limiting member 11, and the other end of the elastic member 40 is connected to the second limiting member 31.
For example, when the motor 80 does not start to rotate, i.e., the valve is in the closed state, the elastic set 40 is in the natural state; when the motor 80 starts to rotate, i.e. opens the valve, the sector gear 30 rotates, so that the second limiting member 31 rotates, and the first limiting member 11 on the housing 10 does not move; at this time, one end of the elastic member 40 is stationary, and the other end of the elastic member 40 rotates, so that the elastic member 40 is in a compressed state; when the motor 80 needs to be reversely rotated to reset, i.e. the valve is closed, the elastic member 40 in the compressed state can resist a certain gravity of the valve, so that the motor 80 can be slowly and stably rotated to reset, and the valve and the motor 80 are protected.
Preferably, still be equipped with a plurality of screens on the first locating part, a plurality of screens include: the first and second detents 11A and 11B generate a greater elastic force when one end of the elastic member 40 is mounted to the first detent 11A than when one end of the elastic member 40 is mounted to the second detent 11B, so that the elastic member 40 can be mounted to different detents according to different elastic force requirements. The detent can also be composed of a plurality of detents, and is not limited herein.
In particular, referring to fig. 4, a drive shaft fixing assembly 70 is further disposed on the drive shaft 20, and includes, for example: a bearing, a washer and an axial retainer ring. Wherein, the bearing sleeve is arranged on the driving shaft 20 and plays a role of fixing the driving shaft 20; the washer is sleeved on the driving shaft 20 and is arranged at one end of the bearing far away from the sector gear 30, and when the bearing rotates, the washer can reduce the friction of the bearing and prolong the service life of the bearing; the axial retainer ring is arranged between the gasket and the bearing and mainly plays a role in axial fixation.
Further, the electric actuator 100 includes, for example: the angle detection assembly 50 is arranged between the sector gear 30 and the circuit board 60, and the angle detection assembly 50 detects the rotation angle of the sector gear 30.
Specifically, referring to fig. 5, the angle detection assembly 50 includes, for example: a rotating shaft 51 and an angle sensor. Wherein, the rotating shaft 51 is connected to the sector gear 30 and can rotate coaxially with the sector gear 30; the angle sensor is provided between the rotation shaft 51 and the circuit board 60.
Specifically, referring to fig. 6 and 7, the sector gear 30 is further provided with a shaft hole 32, and the driving engagement key 33 and the rotation engagement key 34 are provided in the shaft hole 32. The driving matching key 33 is at least one convex key extending into the shaft hole 32, and the rotating matching key 34 is at least one concave key arranged in the shaft hole.
Specifically, referring to fig. 8, the driving shaft 20 is provided with a first connecting key 21 which is in fitting connection with the driving fitting key 33. For example, the first connection key 21 may be at least one matching connection groove provided at the end of the driving shaft; the engaging recess is engageable with at least one of the driving engagement keys 33 projecting into the shaft hole 32 to fix the driving shaft 20 and the sector gear 30 for coaxial rotation of the driving shaft 20 and the sector gear 30.
Preferably, the at least one coupling groove may be a groove extending transversely therethrough, and the at least one protrusion key extending into the shaft hole 32 may be two protrusion keys, and one end of the groove is mounted to one protrusion key, and the other end of the groove is mounted to the other protrusion key, so that the driving shaft 20 is better fixed to the sector gear 30. The number of the grooves and the protruding keys is not limited, and three to a plurality of protruding keys can be matched, and the number is not limited.
Further, the rotating shaft 51 is provided with a second connecting member 55 which is in fitting connection with the rotation fitting key 33. For example, the second connector 54 may be at least one mating connecting protrusion provided at an end of the rotating shaft; the coupling projection is engageable with at least one of the rotation engaging key 34 provided in the shaft hole 32 to fix the rotary shaft 51 and the sector gear 30, so that the rotary shaft 51 and the sector gear 30 are rotated coaxially.
Preferably, the at least one connecting protrusion may be two protrusions respectively disposed at both sides of the rotating shaft 51, and the at least one groove key disposed at the shaft hole 32 may be two groove keys, and the two protrusions are respectively assembled corresponding to the two groove keys, so that the rotating shaft 51 can be better fixed to the sector gear 30. The number of the convex pieces and the groove key positions is not limited, and three to a plurality of convex pieces and groove key positions can be matched and fixed with each other, and the number is not limited.
Preferably, the rotating shaft 51 is further provided with a driving shaft engaging key 55, and the first connecting key 21 of the driving shaft 20 can be directly mounted on the driving shaft engaging key 55, so that the driving shaft 20 and the rotating shaft 51 are fixed and can rotate coaxially.
Preferably, the rotating shaft 51 is further provided with a plurality of mounting holes 53, and the sector gear 30 is correspondingly provided with a plurality of rotating shaft mounting positions, so that the rotating shaft 51 is fixed to the sector gear 30 by the mutual matching of the plurality of mounting holes 53 and the plurality of rotating shaft mounting positions.
Preferably, the angle sensor includes, for example: a magnetic member 52 and a hall sensor. Wherein, the magnetic member 52 is fixedly connected to one end of the rotating shaft 51 far away from the sector gear 30; the hall sensor is arranged on the circuit board 60 and corresponds to the magnetic element 52.
For example, the magnetic member 52 is fixedly connected to the rotating shaft 51 and can rotate coaxially with the rotating shaft 51, and when the sector gear 30 rotates, the magnetic member 52 rotates along with the sector gear 30 to change the magnetic field, so that the hall sensor senses the rotation angle of the sector gear 30, and the open/close state of the valve is known.
[ second embodiment ]
The embodiment of the present invention further provides a turbocharging system, for example, including the electric actuator 100 according to the first embodiment.
Preferably, the drive shaft 24 of the electric actuator 100 in the turbocharger system can be connected to a valve shaft on an exhaust gas recirculation line of the turbocharger system. For example, through the operation of the electric actuator 100, the valve is controlled to open or close, so that the exhaust gas can be fully recycled in the commercial vehicle, and the finally emitted exhaust gas can reduce the gas content of the harmful environment to some extent, such as nitric oxide, carbon monoxide and the like.
[ third embodiment ]
The embodiment of the utility model provides a still provide a commercial car, commercial car includes as above second embodiment turbo-charging system. The commercial vehicle, such as a bus or truck, is more efficient in the treatment of exhaust gases.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the embodiments of the present invention.
Claims (10)
1. An electric actuator having a drive shaft dampening assembly, comprising:
the motor driving device comprises a shell, a motor, a circuit board and a driving output assembly, wherein the circuit board is electrically connected with the motor, the driving output assembly is in transmission connection with the motor, and a first limiting part is arranged in the shell corresponding to the driving output assembly;
the drive output assembly includes:
the sector gear is provided with a second limiting piece and is in transmission connection with the motor;
the driving shaft is connected with the sector gear and driven by the sector gear to coaxially rotate, and one end of the driving shaft extends out of the shell;
and the elastic piece is provided with two opposite ends, wherein one end of the elastic piece is arranged on the first limiting piece, and the other end of the elastic piece is arranged on the second limiting piece.
2. The electric actuator of claim 1, wherein the first retaining member has a plurality of detents, and one end of the elastic member is disposed in one of the detents.
3. The electric actuator of claim 1, further comprising:
the angle detection assembly is arranged between the sector gear and the circuit board so as to detect the rotation angle of the sector gear.
4. The electric actuator of claim 3, wherein the angle detection assembly comprises:
the rotating shaft is connected with the sector gear and driven by the sector gear to coaxially rotate;
and the angle sensor is arranged between the rotating shaft and the circuit board.
5. The electric actuator according to claim 4, wherein the sector gear is provided with a shaft hole in which a driving engagement key and a rotation engagement key are provided;
the driving shaft is provided with a first connecting key which is in matched connection with the driving matching key position;
the rotating shaft is provided with a second connecting piece which is connected with the rotating matching key position in a matching way.
6. The electric actuator of claim 5,
the driving matching key position is at least one protruding key position extending into the shaft hole; the first connecting key is at least one matched connecting groove arranged at the end part of the driving shaft;
the rotary matching key position is at least one groove key position arranged in the shaft hole; the second connecting piece is at least one connecting protruding piece which is arranged at the end part of the rotating shaft and matched with the second connecting piece.
7. The electric actuator of claim 4, wherein the angle sensing assembly comprises:
the magnetic part is fixedly connected to one end, far away from the sector gear, of the rotating shaft;
and the Hall sensor is arranged on the circuit board and corresponds to the magnetic piece.
8. A turbocharging system for use in the field of commercial vehicles, characterized in that it has an electric actuator according to claims 1-7.
9. The turbocharging system according to claim 8, wherein said drive shaft of said electric actuator is connected to a valve shaft of an exhaust gas recirculation conduit of said turbocharging system for controlling the opening or closing of said valve.
10. A commercial vehicle, characterized in that it has a turbocharging system according to any one of claims 8-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120123170.4U CN214304091U (en) | 2021-01-18 | 2021-01-18 | Electric actuator with driving shaft buffer assembly, turbocharging system and commercial vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120123170.4U CN214304091U (en) | 2021-01-18 | 2021-01-18 | Electric actuator with driving shaft buffer assembly, turbocharging system and commercial vehicle |
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| Publication Number | Publication Date |
|---|---|
| CN214304091U true CN214304091U (en) | 2021-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120123170.4U Active CN214304091U (en) | 2021-01-18 | 2021-01-18 | Electric actuator with driving shaft buffer assembly, turbocharging system and commercial vehicle |
Country Status (1)
| Country | Link |
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| CN (1) | CN214304091U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114017212A (en) * | 2021-10-29 | 2022-02-08 | 宁波卡伦特电器有限公司 | Electric control actuator, tail gas treatment system and vehicle |
| CN114033887A (en) * | 2021-10-29 | 2022-02-11 | 宁波卡伦特电器有限公司 | Electric control actuator, tail gas treatment system and vehicle |
-
2021
- 2021-01-18 CN CN202120123170.4U patent/CN214304091U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114017212A (en) * | 2021-10-29 | 2022-02-08 | 宁波卡伦特电器有限公司 | Electric control actuator, tail gas treatment system and vehicle |
| CN114033887A (en) * | 2021-10-29 | 2022-02-11 | 宁波卡伦特电器有限公司 | Electric control actuator, tail gas treatment system and vehicle |
| CN114017212B (en) * | 2021-10-29 | 2023-03-07 | 宁波卡伦特电器有限公司 | Electric control actuator, tail gas treatment system and vehicle |
| WO2023071693A1 (en) * | 2021-10-29 | 2023-05-04 | 宁波卡伦特电器有限公司 | Electronically controlled actuator, exhaust treatment system and vehicle |
| WO2023071692A1 (en) * | 2021-10-29 | 2023-05-04 | 宁波卡伦特电器有限公司 | Electric control actuator, tail gas treatment system, and vehicle |
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Effective date of registration: 20230907 Address after: Tongjiaosi Village, Chunhu Town, Fenghua District, Ningbo City, Zhejiang Province, 315500 Patentee after: NINGBO COLET ELECTRICAL APPLIANCE Co.,Ltd. Address before: 315500 tongjiaosi Industrial Park, Chunhu street, Fenghua City, Ningbo City, Zhejiang Province Patentee before: Ningbo xieno electromechanical Co.,Ltd. |