CN210101742U - Electric control angle steering gear assembly - Google Patents

Abstract

The utility model discloses an electric control angle steering gear assembly, which comprises an upper shell, a lower shell, an input shaft assembly, a sensor, an upper bevel gear shaft, a lower bevel gear shaft and an adjusting motor; the sensor is arranged on the upper shell and used for monitoring the rotation information of the input shaft assembly and transmitting the rotation information to the steering controller, the steering controller is electrically connected with the adjusting motor, and the adjusting motor is connected with the input shaft assembly through the transmission device; the input shaft assembly and the sensor are arranged in the upper shell, the upper end of the input shaft assembly extends out of the upper shell, the upper bevel gear shaft and the lower bevel gear shaft are arranged in the lower shell, the lower end of the input shaft assembly is fixedly connected with the shaft end of the upper bevel gear shaft, the bevel gear of the upper bevel gear shaft is meshed with the bevel gear of the lower bevel gear shaft, the upper shell is fixedly connected with the lower shell, and the shaft end of the lower bevel gear shaft extends out of the lower shell. The electric control angle steering gear assembly has compact structure and flexible arrangement, and meets the requirements of drivers on the stability of steering hand feeling at high speed and the portability at low speed of the automobile.

Description

Electric control angle steering gear assembly

Technical Field

The utility model relates to an automatically controlled technical field of vehicle especially relates to an automatically controlled angle steering gear assembly.

Background

With the rapid development of automobile industry in China, the requirements on safety and comfort of automobiles are higher and higher, and steering hand feeling is regarded as an important part of automobile driving feeling and is more and more emphasized by users. The steering hand feeling is in direct proportion to the friction resistance torque between the automobile tire and the ground: when the automobile runs in situ or at low speed, the friction resistance moment between the tire and the ground is large, and the steering hand feeling is heavy; and along with the improvement of the running speed, the friction resistance moment between the tire and the ground is gradually reduced, and the steering hand feeling is lighter. The user hopes that the automobile can have light hand feeling when running at low speed, and the hand feeling is good in stability and the steering hand feeling of the automobile is not fluctuated when running at high speed.

The power-assisted steering ware that uses in a large number is hydraulic power-assisted steering ware at present, and this proportion is higher in the commercial car field moreover, but hydraulic power-assisted steering ware arrangement mode is limited, and occupation space is great, and controls hand power characteristic singleness, can't realize variably controlling hand power characteristic according to the change of speed of a motor vehicle, and can't realize intelligent control. The conventional electric power steering system has compact structure, convenient arrangement and light steering, but has serious road feel loss and limited output torque, and cannot meet the requirement of large-tonnage commercial vehicles.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a compact structure, arrange nimble automatically controlled angle steering gear assembly to solve the problem that above-mentioned prior art exists, satisfy the driver to the automobile when high-speed turn to the requirement of the stability of feeling and the portability when the low-speed, improve the driving safety nature.

In order to achieve the above object, the utility model provides a following scheme:

the utility model provides an electric control angle steering gear assembly, which comprises an upper shell, a lower shell, an input shaft assembly, a sensor, an upper bevel gear shaft, a lower bevel gear shaft and an adjusting motor; the sensor is arranged on the upper shell and used for monitoring the rotation information of the input shaft assembly and transmitting the rotation information to the steering controller, the steering controller is electrically connected with the adjusting motor, and the adjusting motor is connected with the input shaft assembly through a transmission device; the input shaft assembly and the sensor are arranged in the upper shell, the upper end of the input shaft assembly extends out of the upper shell and is used for being connected with a steering wheel of a vehicle, the upper bevel gear shaft and the lower bevel gear shaft are arranged in the lower shell, the lower end of the input shaft assembly is fixedly connected with the shaft end of the upper bevel gear shaft, the bevel gear of the upper bevel gear shaft is meshed with the bevel gear of the lower bevel gear shaft, the upper shell is fixedly connected with the lower shell, and the shaft end of the lower bevel gear shaft extends out of the lower shell and is used for being fixedly connected with a power steering gear of the vehicle.

Preferably, the input shaft assembly comprises an input shaft, a torsion bar and a worm gear shaft, the upper end and the lower end of the torsion bar are respectively and fixedly connected with the input shaft and the worm gear shaft, and the rotation information at least comprises the rotation angle of the input shaft.

Preferably, the rotation information further includes a rotation speed, a rotation direction of the input shaft, and a steering torque acting on the input shaft.

Preferably, the transmission device comprises a worm wheel and a worm, the adjusting motor is fixedly arranged, an output shaft of the adjusting motor is fixedly connected with the worm, the worm is meshed with the worm wheel, and the worm wheel is fixedly sleeved on a worm wheel shaft.

Preferably, the lower shell is a 90 ° or 120 ° angle rotation shell.

Preferably, one end of the worm gear shaft, which is close to the input shaft, is provided with a containing hole and a connecting hole in sequence from outside to inside along the axial direction, a shaft inner hole is coaxially arranged in the input shaft, the input shaft extends into the containing hole, the upper end of the torsion bar extends into the shaft inner hole and then is fixedly connected with the input shaft through a pin shaft, and the lower end of the torsion bar extends into the connecting hole and is connected with the worm gear shaft through a spline.

Preferably, the worm gear shaft bearing is arranged in the upper end of the connecting body and used for supporting the worm gear shaft, the outer side wall of the upper end of the connecting body is in contact with the inner hole of the upper shell, the outer side wall of the lower end of the connecting body is in contact with the inner hole of the lower shell, and the upper shell, the connecting body and the lower shell are fixedly connected through connecting screws.

Preferably, the worm wheel shaft is fixedly connected with the shaft end of the upper bevel gear shaft through a connecting shaft sleeve.

Preferably, the lower shell is internally and fixedly provided with an upper bevel gear shaft bearing and a lower bevel gear shaft bearing which are respectively used for supporting the upper bevel gear shaft and the lower bevel gear shaft, the upper shell is fixedly connected with an end cover, and the end cover is internally and fixedly provided with an input shaft bearing used for supporting the input shaft.

Preferably, the input shaft further comprises an upper protective cover and a lower protective cover, the upper protective cover is fixedly sleeved outside the shaft end of the input shaft extending out of the end cover, and the upper protective cover is in clearance fit with the outer wall of the top of the end cover; the lower bevel gear shaft extends out the fixed cover of the shaft end of the lower shell and is provided with the lower protective cover, and the lower protective cover is in clearance fit with the outer wall of the lower shell.

The utility model discloses for prior art gain following technological effect:

the utility model provides an automatically controlled angle steering gear assembly, the sensor sets up and is used for monitoring the rotation information of input shaft subassembly and transmits to steering controller on the upper casing, steering controller is connected with the adjusting motor electricity, and the adjusting motor passes through transmission and is connected with the input shaft subassembly, and steering controller still is connected with the displacement sensor electricity on car speed sensor and the steering drive mechanism simultaneously; when a driver rotates a steering wheel, a sensor converts detected steering wheel rotation information into an electric signal and inputs the electric signal to a steering controller, the steering controller controls the working state of an adjusting motor after analyzing and processing the current motion state of the vehicle according to a signal of a vehicle speed sensor on the whole vehicle, so that the force of the driver acting on a steering system is adjusted and controlled by adjusting the working state of the motor, the steering is assisted, and the requirements of stability of steering hand feeling of the vehicle at high speed and portability of the vehicle at low speed can be met; the steering controller controls the adjusting motor and simultaneously transmits corresponding control information to the steering transmission mechanism so as to control the steering of the wheels; and the effect of the adjusting motor on the input shaft assembly can further correct the steering of the wheels while ensuring stable steering torque, so that the steering of the wheels is adjusted in real time, and the driving safety is improved. Compared with a connection mode in a single linear direction, the bevel gear transmission formed by the upper bevel gear shaft and the lower bevel gear shaft realizes that the conversion angle can be adaptively changed, and the setting position and the space of the electric control angle steering gear assembly can be adaptively changed according to the vehicle type, so that the steering gear of the vehicle can be transversely placed, the occupied space is small, and the flexibility of the arrangement of the whole vehicle is improved. And in order to further provide larger and stable steering output torque, the shaft end of the lower bevel gear shaft extends out of the lower shell and is fixedly connected with a power steering gear of the vehicle, and the power steering gear is connected with a steering transmission mechanism of the vehicle to control the steering of the wheels.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic internal structural diagram of a first embodiment of an electronically controlled angle steering gear assembly provided by the present invention;

FIG. 2 is a top view of the electronically controlled angle diverter assembly of FIG. 1;

fig. 3 is a schematic view of an internal structure of a second embodiment of the electronically controlled angle steering gear assembly provided by the present invention;

FIG. 4 is a top view of the electronically controlled angle diverter assembly of FIG. 3;

fig. 5 is a schematic view of an internal structure of a third embodiment of an electronically controlled angle steering gear assembly according to the present invention;

FIG. 6 is a top view of the electronically controlled angle diverter assembly of FIG. 5;

FIG. 7 is a schematic view showing a steering control process of the electronically controlled angle steering gear assembly in the first or third embodiment;

FIG. 8 is a schematic view of a steering control process of the electronically controlled angle steering gear assembly in the second embodiment;

FIG. 9 is a schematic view showing a steering control process of the electric control angle steering assembly connected to the hydraulic power steering gear in the first or third embodiment;

FIG. 10 is a schematic view of a steering control process of the electric control angle steering gear assembly connected with a hydraulic power steering gear in the second embodiment;

in the figure: 1-an input shaft; 2-upper protective cover; 3-end cover; 4-a sensor; 5-an upper shell; 6-worm; 7-a worm gear; 8-torsion bar; 9-a linker; 10-worm gear shaft; 11-connecting shaft sleeve; 12-a lower housing; 13-upper bevel gear shaft; 14-lower bevel gear shaft; 15-lower protective cover; 16-adjusting the motor; 17-a steering controller; 18-a vehicle console; 19-other sensors; 20-a steering wheel; 21-hydraulic power steering gear.

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 work belong to the protection scope of the present invention.

The utility model aims at providing a compact structure, arrange nimble automatically controlled angle steering gear assembly to solve the problem that above-mentioned prior art exists, satisfy the driver to the automobile when high-speed turn to the requirement of the stability of feeling and the portability when the low-speed, improve the driving safety nature.

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.

As shown in fig. 1-10, the present invention provides an electric control angle steering gear assembly, which comprises an upper housing 5, an input shaft assembly, a sensor 4 and an adjusting motor 16; the sensor 4 is arranged on the upper shell 5 and used for monitoring the rotation information of the input shaft assembly and transmitting the rotation information to the steering controller 17, the steering controller 17 is electrically connected with the adjusting motor 16, and the adjusting motor 16 is connected with the input shaft assembly through a transmission device; the input shaft assembly and the sensor 4 are arranged in the upper shell 5, the upper end of the input shaft assembly extends out of the upper shell 5 and is used for being connected with a steering wheel 20, the upper bevel gear shaft 13 and the lower bevel gear shaft 14 are arranged in the lower shell 12, the lower end of the input shaft assembly is fixedly connected with the shaft end of the upper bevel gear shaft 13, the bevel gear of the upper bevel gear shaft 13 is meshed with the bevel gear of the lower bevel gear shaft 14, the upper shell 5 is fixedly connected with the lower shell 12, the shaft end of the lower bevel gear shaft 14 extends out of the lower shell 12 and is used for being fixedly connected with a power steering gear of a vehicle, and the power steering gear is connected with a steering transmission mechanism.

The utility model provides an automatically controlled angle steering gear assembly, sensor 4 set up be used for monitoring the rotation information of input shaft subassembly and transmit to steering controller 17 on upper housing 5, steering controller 17 is connected with adjusting motor 16 electricity, adjusting motor 16 is connected with the input shaft subassembly through transmission, steering controller 17 still is connected with displacement sensor electricity on car speed sensor 4 and the steering drive mechanism simultaneously; when a driver rotates a steering wheel 20, the sensor 4 converts detected rotation information of the steering wheel 20 into an electric signal and inputs the electric signal to the steering controller 17, the steering controller 17 controls the working state of the adjusting motor 16 after analyzing and processing the current motion state of the vehicle according to the signal of the speed sensor 4 on the whole vehicle, so that the force of the driver acting on a steering system is adjusted and controlled by adjusting the working state of the motor 16 to assist steering, and the requirements of stability of steering hand feeling of the vehicle at high speed and portability of the vehicle at low speed can be met; the steering controller 17 controls the adjusting motor 16 and simultaneously transmits corresponding control information to the power steering gear so as to control the steering of the wheels; and the effect of the adjusting motor 16 on the input shaft assembly can further correct the steering of the wheels while ensuring stable steering torque, so that the steering of the wheels can be adjusted in real time, and the driving safety is improved. Compared with a connection mode in a single straight line direction, the bevel gear transmission formed by the upper bevel gear shaft 13 and the lower bevel gear shaft 14 can change the conversion angle adaptively, and the setting position and the space of the electric control angle steering gear assembly can be changed adaptively according to the vehicle type, so that the steering gear of the vehicle can be placed transversely, the occupied space is small, and the flexibility of the arrangement of the whole vehicle is improved. In order to provide a larger and stable steering output torque, the shaft end of the lower bevel gear shaft 14 extends out of the lower housing 12 and can be fixedly connected with the input shaft 1 of the hydraulic power steering gear 21, the semi-integral hydraulic power steering gear or the mechanical power steering gear. Because the hydraulic power-assisted steering device 21, the semi-integral hydraulic power-assisted steering device and the mechanical steering device can provide larger and stable steering output torque, the shaft end of the lower bevel gear shaft 14 is connected with the input end of the hydraulic power-assisted steering device 21, the semi-integral hydraulic power-assisted steering device or the mechanical steering device by using a universal joint transmission shaft to form a split type electric control angle steering device steering system, the hydraulic power-assisted steering device 21, the semi-integral hydraulic power-assisted steering device or the mechanical steering device can flexibly select the setting position according to the space on the automobile, and do not need to be arranged at the same position with other components of the electric control angle steering device, larger and more stable output torque can be provided, the intelligent driving requirement in the field of large-tonnage commercial automobiles is realized, and the structure is compact and the arrangement is flexible. Preferably, the adjustment motor 16 is a dc brushed or brushless servo motor.

Additionally, the utility model provides an automatically controlled angle steering gear assembly still can directly be by vehicle control platform 18 to steering controller 17 signal command to control a steering system (including power assisted steering ware and/or steering drive mechanism), realize that self-driving, automatic urgent dodge, automatic parking etc. assist the driving function. The steering controller 17 is combined with other sensors 19 (including a vehicle speed sensor) arranged on the whole vehicle, can receive current running condition information of the vehicle, such as vehicle speed, road feel and the like, and is combined with the current running information, the steering controller 17 analyzes and processes signals input into the steering controller 17 through an algorithm to generate corresponding instruction signals, then transmits parameter information required to be controlled to the adjusting motor 16 and a steering system through a wire harness, and the adjusting motor 16 provides required steering rotating speed, steering angle and/or steering torque after receiving the information through the wire harness, so that the vehicle can realize stable steering effect; road feel is a phenomenon that a steering system feeds back road surface state information, such as road surface conditions of wet and slippery, stones and sand.

In another specific embodiment of the present invention, the input shaft assembly of the electronically controlled steering gear assembly includes an input shaft 1, a torsion bar 8 and a worm gear shaft 10, the upper end and the lower end of the torsion bar 8 are respectively fixedly connected to the input shaft 1 and the worm gear shaft 10, the rotation information at least includes the rotation angle of the input shaft 1, specifically, the torsion bar 8 is made of 40Cr material, and can be torsionally deformed under the action of a certain torque.

The rotation information further includes the rotation speed and the rotation direction of the input shaft 1 and the steering torque acting on the input shaft 1, and the sensor 4 in the prior art can be selected according to the requirement by the sensor 4. Specifically, the sensor 4 is fixedly installed in the upper shell 5, a rotating shaft is installed in the sensor 4, the first gear is rotatably connected in the sensor 4 through the rotating shaft, the input shaft 1 is fixedly sleeved with the second gear, the second gear is meshed with the first gear, and when the input shaft 1 rotates, information such as the rotating direction, the rotating speed and the rotating angle of the input shaft 1 can be measured through the relative rotating angle of the first gear and the second gear; a first magnetic ring is fixed on an input shaft 1, a second magnetic ring is fixed on a worm gear shaft 10, the input shaft 1 is connected with the worm gear shaft 10 through a torsion bar 8 capable of generating elastic deformation, the torsion bar 8 drives the worm gear shaft 10 to rotate in the rotation process of the input shaft 1, the torsion bar 8 can generate deformation at the moment, the first magnetic ring and the second magnetic ring can generate relative rotation, so that the change of a magnetic quantity value is generated, a side magnetic ring is arranged beside the position of the second magnetic ring and fixedly connected in a sensor 4, the side magnetic ring collects the change information of the magnetic quantity value and converts a signal through the sensor 4, and the detected torque is transmitted to a steering controller 17.

The steering controller 17 can simulate and generate a feedback steering torque according to the rotation angle, the rotation speed and the rotation direction of the input shaft 1 and the steering torque acting on the input shaft 1, and adjust the rotation direction, the steering torque and the steering angle of the motor 16, so that the automobile can steer to the steering torque and the steering angle which are kept stable under any driving speed condition, and the control stability and the driving safety of a steering system are improved.

In another specific embodiment of the present invention, the transmission device of the electric control angle steering gear assembly includes a worm wheel 7 and a worm 6, the adjusting motor 16 is fixedly disposed, the output shaft of the adjusting motor 16 is fixedly connected to the worm 6, the worm 6 is engaged with the worm wheel 7, and the worm wheel 7 is fixedly sleeved on the worm wheel shaft 10.

In another embodiment of the present invention, in order to save the occupied space, a containing hole and a connecting hole are sequentially formed in one end of the worm gear shaft 10 of the electric control angle steering gear assembly close to the input shaft 1 from the outside to the inside along the axial direction, the connecting hole is a blind hole, a shaft inner hole is coaxially formed in the input shaft 1, the input shaft 1 extends into the containing hole, the upper end of the torsion bar 8 extends into the shaft inner hole and then is fixedly connected with the input shaft 1 through a pin shaft, the lower end of the torsion bar 8 extends into the connecting hole and is connected with the worm gear shaft 10 through a spline, and a spline groove matched with the spline is formed in the inner wall of the connecting hole.

In another specific embodiment of the present invention, the electronically controlled angle steering assembly further includes a connector 9, a worm gear shaft bearing for supporting the worm gear shaft 10 is disposed in the upper end of the connector 9, an upper end outer side wall of the connector 9 contacts with an inner hole of the upper housing 5, a lower end outer side wall of the connector 9 contacts with an inner hole of the lower housing 12, the upper housing 5, the connector 9 and the lower housing 12 are fixedly connected through a connecting screw, and a sealing ring is disposed between the outer side wall of the connector 9 and the upper housing 5 and between the outer side wall of the lower housing 12 and the upper housing.

The worm wheel shaft 10 is fixedly connected with the shaft end of the upper bevel gear shaft 13 through a connecting shaft sleeve 11.

An upper bevel gear shaft bearing and a lower bevel gear shaft bearing which are respectively used for supporting an upper bevel gear shaft 13 and a lower bevel gear shaft 14 are fixedly arranged in the lower shell 12, an end cover 3 is fixedly connected to the upper shell 5, and an input shaft bearing used for supporting the input shaft 1 is fixedly arranged in the end cover 3.

In order to adapt to the space in the vehicle of different vehicle types, the lower shell 12 is a 90-degree angle rotation shell (as shown in fig. 1, fig. 5, fig. 7 and fig. 9) or a 120-degree angle rotation shell (as shown in fig. 3, fig. 8 and fig. 10), correspondingly, the included angle between the upper bevel gear shaft 13 and the lower bevel gear shaft 14 is 90-degree or 120-degree, in order to prevent dust and water from entering the electric control angle steering gear assembly and improve the sealing performance, the electric control angle steering gear assembly further comprises an upper protective cover 2 and a lower protective cover 15, the end of the input shaft 1, which extends out of the end cover 3, is fixedly sleeved with the upper protective cover 2, and the upper protective cover 2 has a certain gap with the outer wall of the top of the end cover 3, so that the upper protective cover 2; the fixed cover of axle head external fixation cover that lower bevel gear axle 14 stretched out casing 12 down is equipped with protective cover 15 down, and protective cover 15 has certain clearance with the outer wall of casing 12 down to form clearance fit, make protective cover 15 can follow down bevel gear axle 14 and rotate down.

As shown in fig. 9-10, the electric control angle steering gear assembly provided by the present invention can be applied to special vehicles such as engineering cranes, and refers to a vehicle type with a crane system having a boom mounted on the original vehicle, wherein the crane system of the boom has an independent control cabin, and when a driver uses the crane system of the boom to carry, the driver needs to leave the automobile cab and enter the control cabin for operation. The electric control angle steering gear assembly in the utility model is arranged in a cockpit, because the engineering crane is not used for long-distance running and only used for short-distance steering, the sensor 4 of the electric control angle steering gear assembly can be the sensor 4 without moment detection function, and the sensor 4 is arranged on the shaft end of the upper bevel gear shaft 13, the whole occupied space is reduced, the sensor 4 is also connected to a steering controller 17 by a wire harness, a control console in a control cabin of a hoisting system is connected with the steering controller 17 by the wire harness, wire control steering can be realized, and an intelligent system such as a wire control brake system is combined, when a driver controls a hoisting arm in the control cabin to hoist, if the driver needs to control a vehicle to carry out short-distance steering operation, the driver does not need to return to the cab to turn to control, and the steering can control the hoisting arm in the control cabin by wire control, and the steering operation is carried out, greatly improving the working efficiency.

The utility model discloses a concrete example is applied to explain the principle and the implementation mode of the utility model, and the explanation of the above example is only used to help understand the method and the core idea of the utility model; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.

Claims (10)

1. An electrically controlled angle steering gear assembly characterized by: the device comprises an upper shell, a lower shell, an input shaft assembly, a sensor, an upper bevel gear shaft, a lower bevel gear shaft and an adjusting motor; the sensor is arranged on the upper shell and used for monitoring the rotation information of the input shaft assembly and transmitting the rotation information to the steering controller, the steering controller is electrically connected with the adjusting motor, and the adjusting motor is connected with the input shaft assembly through a transmission device; the input shaft assembly and the sensor are arranged in the upper shell, the upper end of the input shaft assembly extends out of the upper shell and is used for being connected with a steering wheel of a vehicle, the upper bevel gear shaft and the lower bevel gear shaft are arranged in the lower shell, the lower end of the input shaft assembly is fixedly connected with the shaft end of the upper bevel gear shaft, the bevel gear of the upper bevel gear shaft is meshed with the bevel gear of the lower bevel gear shaft, the upper shell is fixedly connected with the lower shell, and the shaft end of the lower bevel gear shaft extends out of the lower shell and is used for being fixedly connected with a power steering gear of the vehicle.

2. An electronically controlled angle steering assembly according to claim 1, wherein: the input shaft assembly comprises an input shaft, a torsion bar and a worm wheel shaft, the upper end and the lower end of the torsion bar are respectively and fixedly connected with the input shaft and the worm wheel shaft, and the rotation information at least comprises the rotation angle of the input shaft.

3. An electronically controlled angle diverter assembly according to claim 2, wherein: the rotational information further includes a rotational speed, a rotational direction of the input shaft, and a steering torque acting on the input shaft.

4. An electronically controlled angle diverter assembly according to claim 2, wherein: the transmission device comprises a worm wheel and a worm, the adjusting motor is fixedly arranged, an output shaft of the adjusting motor is fixedly connected with the worm, the worm is meshed with the worm wheel, and the worm wheel is fixedly sleeved on a worm wheel shaft.

5. An electronically controlled angle steering assembly according to claim 1, wherein: the lower shell is a 90-degree or 120-degree angle rotation shell.

6. An electronically controlled angle diverter assembly according to claim 2, wherein: the worm wheel shaft is provided with a containing hole and a connecting hole in sequence from outside to inside along the axial direction, a shaft inner hole is coaxially arranged in the input shaft, the input shaft extends into the containing hole, the upper end of the torsion bar extends into the shaft inner hole and then is fixedly connected with the input shaft through a pin shaft, and the lower end of the torsion bar extends into the connecting hole and is connected with the worm wheel shaft through a spline.

7. An electronically controlled angle diverter assembly according to claim 2, wherein: the worm gear shaft bearing used for supporting the worm gear shaft is arranged in the upper end of the connecting body, the outer side wall of the upper end of the connecting body is in contact with the inner hole of the upper shell, the outer side wall of the lower end of the connecting body is in contact with the inner hole of the lower shell, and the upper shell, the connecting body and the lower shell are fixedly connected through connecting screws.

8. An electronically controlled angle diverter assembly according to claim 2, wherein: the worm wheel shaft is fixedly connected with the shaft end of the upper bevel gear shaft through a connecting shaft sleeve.

9. An electronically controlled angle diverter assembly according to claim 2, wherein: the input shaft bearing is fixedly arranged in the lower shell, and is used for supporting the upper bevel gear shaft and the upper bevel gear shaft bearing and the lower bevel gear shaft bearing of the lower bevel gear shaft respectively.

10. An electronically controlled angle steering assembly according to claim 9, wherein: the input shaft is fixedly sleeved with the upper protective cover outside the shaft end extending out of the end cover, and the edge of the upper protective cover is in clearance fit with the outer wall of the top of the end cover; the lower bevel gear shaft extends out the fixed cover of the shaft end of the lower shell and is provided with the lower protective cover, and the lower protective cover is in clearance fit with the outer wall of the lower shell.

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