CN212423273U

CN212423273U - Vehicle steering system

Info

Publication number: CN212423273U
Application number: CN202020139988.0U
Authority: CN
Inventors: 李阳; 陈仕胜; 栾英; 伍斌; 姚钢; 刘强; 贾雪峰; 高新颖; 邵凌凌
Original assignee: Anhui Heli Co Ltd
Current assignee: Anhui Heli Co Ltd
Priority date: 2020-01-21
Filing date: 2020-01-21
Publication date: 2021-01-29
Anticipated expiration: 2030-01-21

Abstract

The utility model discloses a vehicle steering system, including steering wheel, steering sensing system and steering column, steering sensing system is including the casing and install connecting piece and the angular velocity sensor in this casing, the steering column runs through connecting piece and angular velocity sensor in proper order and at its tip and steering wheel rigid coupling, be formed with the die cavity that is used for installing angular velocity sensor in the casing to link up the assembly groove of seting up the opening and being located the casing up end and being used for the swing joint connecting piece above this die cavity, the one end and the angular velocity sensor swing joint of connecting piece, the other end and steering wheel swing joint. The utility model discloses an adopt the connecting piece directly to transmit the steering angle of steering wheel to angular velocity sensor, realized corner signal processing's simplification, this kind of structure easily dismouting has reduced the cost of maintenance in later stage simultaneously.

Description

Vehicle steering system

Technical Field

The utility model relates to a vehicle steering system technical field specifically is a vehicle steering system.

Background

At present, a steering system in a vehicle collects a speed signal of a steering wheel through a corner speed sensor, but the corner speed sensor generally rotates along with the rotation of a steering column and cannot directly obtain corner angle information of the steering wheel, and when the corner speed sensor obtains the steering information through the steering column, the steering information is processed through a signal processor, and a signal is transmitted to a controller, so that the steering function of the vehicle is realized. In the prior art, a rotational angular speed encoder is nested on a steering column and used for outputting a command signal of steering control. This structural design is more complicated, and in the actual production process of producer, the installation is inconvenient, and especially external signal sensor and install the angular velocity sensor on the steering column damage failure easily, except that need demolish steering wheel and two-handle combination switch, still need demolish steering column, two-handle combination switch support etc. increase artifical cost of maintenance, reduced fork truck availability factor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a vehicle steering system to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a vehicle steering system, including steering wheel, steering sensing system and steering column, steering sensing system is including the casing and install connecting piece and the angular velocity sensor in this casing, the steering column runs through connecting piece and angular velocity sensor in proper order and at its tip and steering wheel rigid coupling, be formed with the die cavity that is used for installing angular velocity sensor in the casing to link up above this die cavity and set up the opening and be located the casing up end and be used for the assembly groove of swing joint connecting piece, the one end and the angular velocity sensor swing joint of connecting piece, the other end and steering wheel swing joint.

The connecting piece is arranged to be of a barrel structure with an outer circumferential surface in a stepped shaft shape and comprises a connecting head and a connecting body, wherein the connecting head is formed at the end part and used for being matched with the groove type of the assembling groove, and the connecting body is formed at the lower part of the connecting piece and used for being movably connected with the corner speed sensor.

The top of connector is formed with the stopper that a plurality of equipartitions were arranged, the bottom of steering wheel is formed with the spacing mouth of adaptation and this stopper of joint.

The stopper is provided with 3 at the top equipartition range of connector.

Two bayonets have been seted up at its length direction symmetry in the bottom of connector, angular velocity sensor is formed with the through-hole along the assembly axial of steering column, and this through-hole inside wall is formed with the boss of adaptation and joint bayonet socket, and this boss is the strip setting to arrange along steering column axial vertical, be formed with the surplus clearance that is located the bayonet socket terminal department behind boss and the bayonet socket joint.

The outer circumferencial part of connector is formed with along its circumference and encircles the spacing collar that sets up, the connector is formed with the spigot that circumference encircleed the setting with the junction of connector, and this spigot and the bottom of connector and personally submit the step form with the outer circumference of connector and arrange, be formed with the spacing district that is located the outer periphery of connector between the bottom terminal surface of spigot and the spacing collar, the joint department of assembly groove and die cavity is formed with the rigid coupling in the die cavity and along the spacing ring that steering column axial extension set up, the connecting piece passes through the spacing district joint on the spacing ring.

A gap is formed between the limiting ring and the inner wall of the assembling groove, and a spring is sleeved on the outer ring part of the limiting ring.

The casing sets up to the combination switch casing, including steering wheel, steering induction system and steering column in this combination switch casing, still including arranging the handle of combination switch casing both sides in and arranging the inside switch module of combination switch in, switch module is including the direction control element who is used for controlling vehicle direction switch, the lamp control element who is used for controlling vehicle light switch and the loudspeaker switch element who is used for controlling vehicle horn switch.

According to the above technical scheme, the utility model discloses an adopt the connecting piece directly to transmit the steering angle of steering wheel to angular velocity sensor, realized corner signal processing's simplification, this kind of structure easily dismouting has reduced the cost of maintenance in later stage simultaneously, specifically as follows:

1: the vehicle steering system directly transmits the corner angle to the corner sensor through the steering wheel, so that indirect transmission of a steering column is avoided, transition of an intermediate link is omitted, the precision of corner information is effectively improved, the failure rate is reduced, and meanwhile, the internal structure of the shell is easy to disassemble and assemble a connecting piece, so that the durability of the steering system is improved;

2: the connecting piece is optimized in structure and practical in spring, and is matched with an internal limiting ring, so that the butt joint stability of the connecting piece in the shell can be effectively improved, meanwhile, the connecting piece is matched with a boss in a corner speed sensor through a bayonet, the assembly is simple and practical, the transmission loss is small, the corner precision is effectively improved, and the reliability is higher;

3: this kind of vehicle steering system's cost of maintenance is low, through the effectual dismouting efficiency that has improved of detachable structural style, inside angular velocity sensor arranged the casing in simultaneously, not traditional steering system need install it on the steering column, further realization made things convenient for the easy outstanding effect of maintaining of dismouting.

Drawings

FIG. 1 is a schematic view of the internal structure of the housing of the present invention;

FIG. 2 is an exploded view of the vehicle steering system of the present invention;

FIG. 3 is an assembly view of the vehicle steering system of the present invention;

FIG. 4 is a schematic view of the bottom structure of the housing of the present invention;

FIG. 5 is a schematic view of the structure of the connector of the present invention;

FIG. 6 is a schematic view of the structure of the combination switch of the present invention;

fig. 7 is a partial schematic view of the connection between the connecting member and the steering wheel of the present invention.

In the figure: the device comprises a shell 1, a limiting ring 11, an assembly groove 2, a cavity 3, a connecting piece 4, a connector 41, a limiting block 411, a connecting body 42, a bayonet 421, a allowance gap 422, a rabbet 423, a limiting ring 424, a limiting area 425, a 5-corner speed sensor, a boss 51, a through hole 52, a spring 6, a steering column 7, a steering wheel 8, a boss 81, a limiting port 811, a combined switch shell 9, a handle 91 and a switch component 92.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings:

a vehicle steering system as shown in fig. 1-7, comprising a steering wheel 8, a steering sensing system and a steering column 7; the steering sensing system comprises a shell 1, a connecting piece 4 and a corner speed sensor 5, wherein the connecting piece 4 and the corner speed sensor 5 are installed in the shell 1, a steering column 7 sequentially penetrates through the connecting piece 4 and the corner speed sensor 5 and is fixedly connected with a steering wheel 8 at the end part of the connecting piece, and important explanation is needed, the steering sensing system directly transmits the steering angle of the steering wheel 8 to the corner speed sensor 5 by adopting the connecting piece 4, the transmission structure in the steering system is effectively simplified, the transmission of the steering angle is more accurate, the vehicle steering system has various implementation modes, the steering sensing system can be independently integrated and arranged in the shell 1, and the steering sensing system can be also integrated and arranged in a combined switch shell 9, the assembly of the steering sensing system and the assembly of the combined switch shell are not interfered with each other, and the steering sensing system can be independently used, and:

the first embodiment is as follows:

as shown in fig. 1, 2, 4, 5 and 7, the present embodiment describes a structure in which a steering sensing system is integrated in a housing 1, and the housing 1, in combination with a steering column 7 and a steering wheel 8, constitutes a complete vehicle steering system, specifically:

including steering wheel 8, turn to induction system and steering column 7, turn to induction system including casing 1 and install connecting piece 4 and angular velocity sensor 5 in this casing 1, turn to column 7 and run through connecting piece 4 and angular velocity sensor 5 in proper order and at its tip and 8 rigid couplings of steering wheel, turn to induction system and directly transmit the angle of turning to of steering wheel 8 for angular velocity sensor 5 through adopting connecting piece 4, be formed with the die cavity 3 that is used for installing angular velocity sensor 5 in the casing 1 to link up the assembly groove 2 of seting up the opening and being located 1 up end of casing and being used for swing joint connecting piece 4 above this die cavity 3, the one end and the 5 swing joint of angular velocity sensor of connecting piece 4, the other end and 8 swing joint of steering wheel.

The present embodiment focuses on the structural features of the connecting element 4 and the angular velocity sensor 5, as shown in fig. 1, 4, 5 and 7, in the illustration, the connecting element 4 is configured as a cylindrical structure with a stepped shaft-shaped outer circumference, and includes a connecting head 41 formed at an end and used for matching with the groove type of the assembly groove 2, and a connecting body 42 formed at a lower portion of the connecting element 4 and used for movably connecting the angular velocity sensor 5, further, a plurality of evenly distributed stoppers 411 are formed at a top portion of the connecting head 41, a stopper opening 811 adapted and engaged with the stopper 411 is formed at a bottom portion of the steering wheel 8, in actual use, an outwardly protruding convex portion 81 may be formed at a bottom portion of the steering wheel 8 and used for opening the stopper opening 811, the present embodiment does not specifically limit the convex portion 81, the size of the stopper opening 811 is adapted to the size of the stopper opening 411, so as to effectively achieve rapid positioning connection between the connecting element 4 and the, simultaneously the dismouting is more convenient, and is preferred, and stopper 411 is arranged at the top equipartition of connector 41 and is provided with 3, and 3 stopper 411 can form the center pin symmetrical structure, can normally apply force after satisfying with 8 joints of steering wheel under the condition adopt stopper 411 structures of minimum quantity, and not only the assembly is easier, the effectual processing degree of difficulty that reduces connecting piece 4 simultaneously. It should be emphasized that the bottom of the connecting body 42 is symmetrically provided with two bayonets 421 in the length direction, and it is adapted that a boss 51 for clamping the two bayonets 421 is formed on the inner side wall of the through hole 52 of the angular velocity sensor 5, and after the connecting piece 4 is assembled to the assembly slot 2, the rapid butt-joint positioning can be effectively realized by the clamping of the boss 51 and the bayonets 421, so as to achieve the effect of transmitting the angular angle of the steering wheel 8 to the angular velocity sensor 5, the angular velocity sensor 5 described in this embodiment is a common device used for outputting an angular velocity signal in the prior art, and for being suitable for assembling the connecting piece 4, only a structural improvement is made at the joint with the connecting piece 4, the angular velocity sensor 5 can freely rotate in the cavity 3, and at the same time, the angular velocity sensor 5 converts the angular velocity signal into a voltage signal and transmits the voltage signal to the controller, the controller drives the oil pump motor to control the hydraulic steering device to realize the steering of the vehicle, and the controller, the oil pump motor and the hydraulic steering device are not included in the vehicle steering system and are only used for explaining the working principle of the corner speed sensor 5; preferably, the boss 51 is arranged in a strip shape and is vertically arranged along the axial direction of the steering column 7, and the structural design can be effectively adapted to the bayonet 421, so that a good assembly effect is achieved; furthermore, a margin gap 422 at the end of the bayonet 421 is formed after the boss 51 and the bayonet 421 are clamped, and the margin gap 422 can effectively prevent the problem of structural interference between the boss 51 and the bayonet 421 caused by assembly; in order to further realize the firm assembly of the connecting member 4 in the assembly groove 2, a limiting region 425 and a seam allowance 423 are formed on the connecting member 4 preferred in this embodiment, the seam allowance 423 is located at the joint of the connecting head 41 and the connecting body 42, a limiting ring 11 fixedly connected in the cavity and extending along the axial direction of the steering column 7 is formed at the joint of the assembly groove 2 and the cavity 3, the connecting member 4 is clamped on the limiting ring 11 through the limiting region 425 to realize the assembly and fixation, further, a spring 6 is sleeved on the outer ring part of the limiting ring 11, the bottom of the spring 6 is fixed on the limiting ring 11, and applies a vertically upward acting force to the bottom end face of the connecting head 41 through elastic force, and the limiting effect of the limiting ring 424 is combined, so that the fixing effect on the connecting member 4 can be effectively realized, and the possibility that the connecting member 4 can not generate any axial movement on the premise that the connecting member 4 can rotate freely in the assembly groove 2 after being clamped with the rotational angular velocity sensor 5, not only realized easy dismounting, stable in structure is high-efficient simultaneously.

In the vehicle steering system of this embodiment, casing 1 installs at vehicle inside and fixed, through connecting piece 4 direct with turning angle transmit to angular velocity sensor 5 on, improved the corner and detected the precision, easy dismounting has reduced the vehicle assembly degree of difficulty simultaneously to the cost of maintenance that reduces.

Example two:

as shown in fig. 1, 3, 4, 5, 6 and 7, the present embodiment describes a structure in which a steering sensing system is integrated in a combination switch housing 9, that is, the housing 1 described in the first embodiment is replaced by the combination switch housing 9, the structure is designed to optimize the structural space in the vehicle steering system, specifically, a connecting piece 4, a rotational speed sensor 5, a switch assembly 92 and handles 91 disposed at two sides of the combination switch housing 9 are disposed in the combination switch housing 9, and the combination switch housing 9, in combination with a steering column 7 and a steering wheel 8, forms a complete vehicle steering system, specifically:

the steering sensing system comprises a combined switch shell 9, a connecting piece 4 and a turning speed sensor 5, wherein the connecting piece 4 and the turning speed sensor 5 are installed in the combined switch shell 9, a steering column 7 sequentially penetrates through the connecting piece 4 and the turning speed sensor 5 and is fixedly connected with a steering wheel 8 at the end part of the connecting piece, the steering sensing system directly transmits the turning angle of the steering wheel 8 to the turning speed sensor 5 by adopting the connecting piece 4, a cavity 3 for installing the turning speed sensor 5 is formed in the combined switch shell 9, an assembling groove 2 which is provided with an opening and is located on the upper end face of the combined switch shell 9 and is used for movably connecting the connecting piece 4 is formed above the cavity 3 in a penetrating mode, one end of the connecting piece 4 is movably connected with the turning speed sensor 5, and the other.

The present embodiment needs to be described in detail with respect to the structural features of the connecting element 4 and the angular velocity sensor 5, the connecting element 4 is configured as a barrel structure with a stepped shaft-shaped outer circumferential surface, and includes a connecting head 41 formed at an end and used for matching with the groove type of the assembly groove 2, and a connecting body 42 formed at a lower portion of the connecting element 4 and used for movably connecting the angular velocity sensor 5, further, a plurality of evenly distributed limiting blocks 411 are formed at a top of the connecting head 41, a limiting opening 811 adapted and engaged with the limiting blocks 411 is formed at a bottom of the steering wheel 8, in practical use, an outwardly protruding convex portion 81 is formed at a bottom of the steering wheel 8 and used for forming the limiting opening 811, the present embodiment does not specifically limit the convex portion 81, the size of the opening of the limiting opening 811 is adapted to the size of the limiting blocks 411, so as to effectively achieve fast positioning connection between, simultaneously the dismouting is more convenient, and is preferred, and stopper 411 is arranged at the top equipartition of connector 41 and is provided with 3, and 3 stopper 411 can form the center pin symmetrical structure, can normally apply force after satisfying with 8 joints of steering wheel under the condition adopt stopper 411 structures of minimum quantity, and not only the assembly is easier, the effectual processing degree of difficulty that reduces connecting piece 4 simultaneously. It should be emphasized that the bottom of the connecting body 42 is symmetrically provided with two bayonets 421 in the length direction, and it is adapted that a boss 51 for clamping the two bayonets 421 is formed on the inner side wall of the through hole 52 of the angular velocity sensor 5, and after the connecting piece 4 is assembled to the assembly slot 2, the rapid butt-joint positioning can be effectively realized by the clamping of the boss 51 and the bayonets 421, so as to achieve the effect of transmitting the angular angle of the steering wheel 8 to the angular velocity sensor 5, the angular velocity sensor 5 described in this embodiment is a common device used for outputting an angular velocity signal in the prior art, and for being suitable for assembling the connecting piece 4, only a structural improvement is made at the joint with the connecting piece 4, the angular velocity sensor 5 can freely rotate in the cavity 3, and at the same time, the angular velocity sensor 5 converts the angular velocity signal into a voltage signal and transmits the voltage signal to the controller, the controller drives the oil pump motor to control the hydraulic steering device to realize the steering of the vehicle, and the controller, the oil pump motor and the hydraulic steering device are not contained in the vehicle steering system and are only used for explaining the working principle of the corner speed sensor 5; preferably, the boss 51 is arranged in a strip shape and is vertically arranged along the axial direction of the steering column 7, and the structural design can be effectively adapted to the bayonet 421, so that a good assembly effect is achieved; furthermore, a margin gap 422 at the end of the bayonet 421 is formed after the boss 51 and the bayonet 421 are clamped, and the margin gap 422 can effectively prevent the problem of structural interference between the boss 51 and the bayonet 421 caused by assembly; in order to further realize the firm assembly of the connecting member 4 in the assembly groove 2, the preferred connecting member 4 of the present embodiment is formed with a limiting region 425 and a seam allowance 423, the seam allowance 423 is located at the joint of the connecting head 41 and the connecting body 42, a limiting ring 11 fixedly connected in the cavity and extending along the axial direction of the steering column 7 is formed at the joint of the assembly groove 2 and the cavity 3, the connecting member 4 is clamped on the limiting ring 11 through the limiting region 425 to realize the assembly fixation, further, a spring 6 is sleeved on the outer ring part of the limiting ring 11, the bottom of the spring 6 is fixed on the limiting ring 11, and applies a vertical upward acting force to the bottom of the connecting head 41 through an elastic force, and combines the limiting effect of the limiting ring 424, the fixing effect on the connecting member 4 can be effectively realized, and the possibility that the connecting member 4 can not generate any axial movement on the premise that the connecting member 4 can freely rotate in the assembly groove 2 after being clamped with the angular velocity sensor 5 is ensured, not only realized easy dismounting, stable in structure is high-efficient simultaneously.

In the vehicle steering system of this embodiment, combination switch casing 9 is installed inside the vehicle and is fixed, through connecting piece 4 direct with turn to on angle transmits angular velocity sensor 5, what need explain lies in, turn to induction system integration inside combination switch casing 9, further reduction the inside space of vehicle occupy, and the availability factor is improved, and this kind of mode of built-in angular velocity sensor 5 and connecting piece 4 can conveniently be demolishd simultaneously, has reduced the complexity of part dismouting, and cost of maintenance is reduced.

The above-mentioned embodiments are only for describing the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art without departing from the design spirit of the present invention should fall into the protection scope defined by the claims of the present invention.

Claims

1. A vehicle steering system characterized by: including steering wheel, steering induction system and steering column, steering induction system is including the casing and install connecting piece and angular velocity sensor in this casing, the steering column runs through connecting piece and angular velocity sensor in proper order and at its tip and steering wheel rigid coupling, be formed with the die cavity that is used for installing angular velocity sensor in the casing to link up the assembly groove of seting up the opening and being located the casing up end and being used for the swing joint connecting piece above this die cavity, the one end and the angular velocity sensor swing joint of connecting piece, the other end and steering wheel swing joint.

2. A vehicle steering system according to claim 1, wherein: the connecting piece is arranged to be of a barrel structure with an outer circumferential surface in a stepped shaft shape and comprises a connecting head and a connecting body, wherein the connecting head is formed at the end part and used for being matched with the groove type of the assembling groove, and the connecting body is formed at the lower part of the connecting piece and used for being movably connected with the corner speed sensor.

3. A vehicle steering system according to claim 2, wherein: the top of connector is formed with the stopper that a plurality of equipartitions were arranged, the bottom of steering wheel is formed with the spacing mouth of adaptation and this stopper of joint.

4. A vehicle steering system according to claim 3, wherein: the stopper is provided with 3 at the top equipartition range of connector.

5. A vehicle steering system according to claim 2, wherein: two bayonets have been seted up at its length direction symmetry in the bottom of connector, angular velocity sensor is formed with the through-hole along the assembly axial of steering column, and this through-hole inside wall is formed with the boss of adaptation and joint bayonet socket, and this boss is the strip setting to arrange along steering column axial vertical, be formed with the surplus clearance that is located the bayonet socket terminal department behind boss and the bayonet socket joint.

6. A vehicle steering system according to claim 2, wherein: the outer circumferencial part of connector is formed with along its circumference and encircles the spacing collar that sets up, the connector is formed with the spigot that circumference encircleed the setting with the junction of connector, and this spigot and the bottom of connector and personally submit the step form with the outer circumference of connector and arrange, be formed with the spacing district that is located the outer periphery of connector between the bottom terminal surface of spigot and the spacing collar, the joint department of assembly groove and die cavity is formed with the rigid coupling in the die cavity and along the spacing ring that steering column axial extension set up, the connecting piece passes through the spacing district joint on the spacing ring.

7. A vehicle steering system according to claim 6, wherein: a gap is formed between the limiting ring and the inner wall of the assembling groove, and a spring is sleeved on the outer ring part of the limiting ring.

8. A vehicle steering system according to claim 1, wherein: the casing sets up to the combination switch casing, including steering wheel, steering induction system and steering column in this combination switch casing, still including arranging the handle of combination switch casing both sides in and arranging the inside switch module of combination switch in, switch module is including the direction control element who is used for controlling vehicle direction switch, the lamp control element who is used for controlling vehicle light switch and the loudspeaker switch element who is used for controlling vehicle horn switch.