X-EPS of horizontal structure

Abstract

The invention belongs to the technical field of automobile electronic control, and discloses an X-EPS of a horizontal structure, the X-EPS of the horizontal structure comprises a first steering gear, a box worm sub-assembly, a second steering gear, an electronic control all-in-one machine, a bolt, a wire harness structure and a clamping structure, the first steering gear is used for steering driving, the box worm sub-assembly is connected to the first steering gear, and the second steering gear is connected to the electronic control all-in-one machine. The first steering gear is connected to the box worm sub-assembly and used for amplifying torque and transmitting the torque to the first steering gear, the second steering gear is connected to the box worm sub-assembly and used for converting the vertical torque input by a steering wheel into the horizontal torque, the electric control all-in-one machine is connected to the box worm sub-assembly, and the bolts are connected to the first steering gear, the box worm sub-assembly, the second steering gear and the electric control all-in-one machine. And through meshing of spiral bevel gears with the intersection angle of 70 degrees in the second steering gear, vertical torque is converted into horizontal torque, the problem of space interference of a cab floor of a vertical X-EPS is avoided, the device can be installed on the side face or the front end of a chassis, and the vehicle type adaptability is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of automobile electronic control, and in particular relates to an X-EPS with a horizontal structure. Background Art

[0002] To enhance the driving experience of commercial vehicles, commercial vehicle companies are currently upgrading traditional fuel vehicles, replacing traditional hydraulic power steering (HPS) with electric power steering (X-EPS) to optimize the driving feel through the electronic control system. The HPS input port on traditional fuel vehicles is relatively narrow, while the X-EPS, which includes a power assist motor, controller, and worm gear components, significantly increases its size and structural complexity. The traditional vertical X-EPS structure interferes with the cab floor during installation, severely limiting its design and layout, making it difficult to adapt to space-constrained commercial vehicle chassis, which in turn hinders its widespread application. That is, the neutral structure X-EPS of the prior art interferes with the cab floor due to spatial layout issues, which restricts its installation adaptability on commercial vehicles. Summary of the Invention

[0003] The purpose of the present invention is to provide a horizontal X-EPS to solve the problem that the existing vertical X-EPS interferes with the cab floor due to spatial layout issues, thus restricting its installation adaptability on commercial vehicles. To achieve this object, the present invention adopts the following technical solutions: The present invention provides a horizontal X-EPS, which includes: a first steering gear, used for steering drive; a housing worm sub-assembly connected to the first steering gear, for amplifying and transmitting the torque to the first steering gear; A second steering gear, connected to the box worm sub-assembly, is used to convert the vertical torque input by the steering wheel into a horizontal torque; An electronic control unit and bolts, the electronic control unit being connected to the housing worm sub-assembly and being used to receive a signal from a second steering gear sensor, the bolts being connected to the first steering gear, the housing worm sub-assembly, the second steering gear, and the electronic control unit and being used to assemble and secure the first steering gear, the housing worm sub-assembly, the second steering gear, and the electronic control unit; A wiring harness structure and a clip-on structure, wherein one end of the wiring harness structure is connected to the clip-on structure and the other end is connected to the electronic control all-in-one machine, for transmitting electrical signals between the electronic control all-in-one machine and the second steering gear, and the clip-on structure is connected to the second steering gear.

[0004] As an optional technical solution for a horizontal X-EPS, the snap-in structure includes: A clamping block and a slider, wherein the clamping block is connected to the slider, and the slider is inserted into the wiring harness structure; A push post and a limiting sleeve, wherein the limiting sleeve is connected to the wiring harness structure, and the push post is inserted into the limiting sleeve and connected to the slider; An elastic member is sleeved on the pushing column.

[0005] As an optional technical solution for a horizontal X-EPS, the wiring harness structure includes: Connector 1 and connector, the connector is plugged into the second diverter, the connector is connected to the connector, and the limiting sleeve is arranged on the connector; A second connector and a wire, wherein the connector is plugged into the electronic control all-in-one machine, and two ends of the wire are respectively connected to the second connector and the connector.

[0006] As an optional technical solution for a horizontally structured X-EPS, a slide groove is provided on the connecting head, and the slider is arranged in the slide groove.

[0007] As an optional technical solution for a horizontally structured X-EPS, limit blocks are fixedly installed at both ends of the slider, and the limit blocks are inserted into the slide groove to enable the slider to move horizontally.

[0008] As an optional technical solution for a horizontally structured X-EPS, a mounting hole is provided on the limiting sleeve, and the push column is inserted into the mounting hole.

[0009] As an optional technical solution for a horizontal X-EPS, a push plate is fixedly mounted on one end of the push column for workers to push the push column; Two ends of the elastic member are respectively connected to the push plate and the limiting sleeve.

[0010] As an optional technical solution for a horizontally structured X-EPS, the second steering gear is composed of a pair of spiral bevel gears with an intersection angle of 70°.

[0011] As an optional technical solution for a horizontally structured X-EPS, the second steering gear output shaft is connected to the first steering gear input shaft by using internal and external splines. Beneficial effects

[0012] The present invention provides an X-EPS with a horizontal structure, which includes a first steering gear, a housing worm sub-assembly, a second steering gear, an electronic control integrated machine, bolts, a wiring harness structure and a clamping structure. The first steering gear is used for steering drive, the housing worm sub-assembly is connected to the first steering gear for amplifying and transmitting torque to the first steering gear, the second steering gear is connected to the housing worm sub-assembly for converting the vertical torque input by the steering wheel into a horizontal direction, the electronic control integrated machine is connected to the housing worm sub-assembly for receiving the second steering gear sensor signal, and the bolts are connected to the first steering gear. The steering gear, the box worm sub-assembly, the second steering gear and the electronic control integrated unit are used to assemble and fix the first steering gear, the box worm sub-assembly, the second steering gear and the electronic control integrated unit. One end of the wiring harness structure is connected to the clamping structure, and the other end is connected to the electronic control integrated unit. It is used to transmit electrical signals from the electronic control integrated unit and the second steering gear. The clamping structure is connected to the second steering gear. Through the engagement of the spiral bevel gear with a 70° intersection angle in the second steering gear, the vertical torque is converted into horizontal torque, avoiding the interference problem of the cab floor space of the vertical X-EPS. It can be installed on the side or front end of the chassis to improve the adaptability of the vehicle model. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic structural diagram of a horizontal X-EPS provided by an embodiment of the present invention; Figure 2 This is an exploded view of the structure of a horizontal X-EPS provided by an embodiment of the present invention; Figure 3 1 is a schematic diagram of the installation structure of the wiring harness structure provided by an embodiment of the present invention; Figure 4 It is a schematic diagram of the installation structure of the clamping structure provided by an embodiment of the present invention.

[0014] In the picture: 1. First steering gear; 2. Box worm sub-assembly; 3. Second steering gear; 4. Electronic control unit; 5. Bolts; 6. Clamping block; 7. Slider; 8. Push column; 9. Limit sleeve; 10. Elastic part; 11. Connector 1; 12. Connector; 13. Connector 2; 14. Wire; 15. Limit block; 16. Push plate. DETAILED DESCRIPTION

[0015] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It will be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all structures.

[0016] In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific circumstances.

[0017] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0018] In the description of this embodiment, the terms "upper," "lower," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meanings.

[0019] like Figures 1 to 4As shown, this embodiment provides an X-EPS with a horizontal structure, which includes a first steering gear 1, a housing worm subassembly 2, a second steering gear 3, an electronic control integrated machine 4, bolts 5, a wiring harness structure and a clamping structure. The first steering gear 1 is composed of a screw nut screw pair and a rocker shaft nut gear rack and pinion for steering drive. The housing worm subassembly 2 is connected to the first steering gear 1. The housing worm subassembly 2 is composed of a worm gear transmission pair for amplifying and transmitting torque to the first steering gear 1. The second steering gear 3 is connected to the housing worm subassembly 2 for converting the vertical torque input by the steering wheel into a horizontal direction. The electronic control integrated machine 4 is connected to the housing worm subassembly 2 for receiving the sensor signal of the second steering gear 3. The worm wheel is pressed onto the input shaft of the first steering gear 1 and provides power assistance through the worm connected to the electronic control integrated machine 4. The angle and torque sensor is installed on the second steering gear 3. The bolt 5 is connected to the first steering gear 1, the box worm subassembly 2, the second steering gear 3 and the electronic control all-in-one 4, and is used to assemble and fix the first steering gear 1, the box worm subassembly 2, the second steering gear 3 and the electronic control all-in-one 4. One end of the wiring harness structure is connected to the clamping structure, and the other end is connected to the electronic control all-in-one 4, which is used to transmit electrical signals from the electronic control all-in-one 4 and the second steering gear 3. The clamping structure is connected to the second steering gear 3. The wiring harness structure includes a connector 11, a connector 12, a connector 2 13 and a wire 14. The connector is inserted into the second steering gear 3, the connector 12 is connected to the connector, the limit sleeve 9 is provided on the connector 12, and the connector is inserted into the electronic control all-in-one 4. The two ends of the wire 14 are respectively connected to the connector 2 13 and the connector 12. The second steering gear 3 consists of a pair of spiral bevel gears with an intersection angle of 70°. The output shaft of the second steering gear 3 and the input shaft of the first steering gear 1 are connected by internal and external splines.

[0020] By meshing the spiral bevel gears with a 70° angle in the second steering gear 3, the vertical torque is converted into horizontal torque, avoiding the interference problem of the cab floor space of the vertical X-EPS. It can be installed on the side or front end of the chassis to improve the adaptability of the vehicle model.

[0021] The input shaft of the second steering gear 3 is externally connected to the steering wheel. The torque and angular position information generated by the steering wheel when the vehicle is turning is recognized by the sensor on the second steering gear 3 and then transmitted to the electric control integrated machine 4. The electric control integrated machine 4 controls the output torque of the motor after calculation based on the torque size and angular position. The torque is amplified by the worm gear and then transmitted to the screw nut screw pair. The screw nut screw pair is amplified by the gear rack meshing pair at the second level and then outputs the torque to the tire for steering through the rocker arm shaft.

[0022] Specifically, the first steering gear 1 is the existing steering gear subassembly, and the second steering gear 3 is the existing angle steering gear subassembly. The bolt 5 passes through the first steering gear 1, the box worm subassembly 2, the second steering gear 3 and the electronic control all-in-one 4, and is used to connect the screw holes between the first steering gear 1, the box worm subassembly 2, the second steering gear 3 and the electronic control all-in-one 4 to ensure the stability of the structure.

[0023] See also Figure 3 and Figure 4 In this embodiment, the clamping structure includes a clamping block 6, a slider 7, a pushing column 8, a limiting sleeve 9 and an elastic member 10. The clamping block 6 is connected to the slider 7, the slider 7 is inserted into the wiring harness structure, the limiting sleeve 9 is connected to the wiring harness structure, the pushing column 8 is inserted into the limiting sleeve 9 and connected to the slider 7, the elastic member 10 is sleeved on the pushing column 8, a sliding groove is provided on the connecting head, the slider 7 is provided in the sliding groove, and the left and right ends of the slider 7 are fixedly installed with limiting blocks 15, the limiting block 15 is inserted in the sliding groove, and is used to make the slider 7 move horizontally. A mounting hole is provided on the limiting sleeve 9, and the pushing column 8 is inserted in the mounting hole. A push plate 16 is fixedly installed at one end of the pushing column 8 for the staff to push the pushing column 8. The two ends of the elastic member 10 are respectively connected to the push plate 16 and the limiting sleeve 9.

[0024] The wiring harness structure and the second diverter 3 are fixed in a sliding and snap-fitting manner through the snap-fit structure, thereby avoiding interface wear caused by frequent plugging and unplugging, preventing loose connections, and ensuring signal transmission stability.

[0025] When the wiring harness structure needs to be connected to the second steering gear 3, press the push plate 16, the elastic part 10 is squeezed and contracted, and the push column 8 slides along the mounting hole in the limit sleeve 9 toward the connector 11, driving the slider 7 connected to it to slide synchronously horizontally in the slide groove, so that the clamping block 6 moves toward the middle of the connector 11, and then the connector 11 is inserted into the connecting port of the second steering gear 3. At this time, release the push plate 16, and the elastic part 10 pushes the push plate 16 and the push column 8 to move outside the connector 11 due to elastic recovery, driving the slider 7 to slide in the opposite direction in the slide groove, so that the clamping block 6 is clamped into the groove on the inner wall of the connecting port, thereby realizing the clamping and fixing of the wiring harness structure and the second steering gear 3, avoiding frequent plugging and unplugging and wear of the interface.

[0026] Specifically, the limit sleeve 9 is fixedly installed on the top of the connector 12, and the slider 7 is slidably installed in the slide groove. The top of the slider 7 is fixedly installed with a clamping block 6, and the limit block 15 is fixedly installed at the left and right ends of the slider 7, so that the slider 7 can drive the clamping block 6 to move horizontally to prevent the clamping block 6 from shaking. The clamping block 6 is fixedly installed on the top of the slider 7, and one end of the slider 7 is fixedly installed with a pushing post 8, and the pushing post 8 is slidably installed in the mounting hole. One end of the pushing post 8 is fixedly installed with a push plate 16, and one end of the push plate 16 and the limiting sleeve 9 are fixedly connected with an elastic member 10. The elastic member 10 is fixedly sleeved on the outer surface of the pushing post 8, and the elastic member 10 can be an elastic element with elasticity such as a spring. A connecting port is provided on the second diverter 3 for clamping a connector 11, and a card groove is provided on the inner wall of the connecting port for cooperating with the clamping block 6 to realize the clamping and fixing of the connector 11 and the second diverter 3.

[0027] In this embodiment, two groups of snap-fit structures are provided, located at the upper and lower ends of the connector 11 respectively.

[0028] The following is a specific use process of a horizontal structure X-EPS: First, the input shaft of the second steering gear 3 is connected to the steering wheel. The torque and angular position information generated by the steering wheel when the vehicle is turning is identified by the sensor on the second steering gear 3 and then sent to the electric control integrated machine 4. The electric control integrated machine 4 controls the output torque of the motor after calculation based on the torque size and angular position. The torque is amplified by the worm gear and then transmitted to the screw nut screw pair. The screw nut screw pair is amplified by the gear rack meshing pair at the second level and then outputs the torque to the tire steering through the rocker arm shaft. When it is necessary to troubleshoot, replace or calibrate the angle sensor and torque sensor on the second steering gear 3, or to maintain the electric control integrated machine 4, the wiring harness structure needs to be unplugged to disconnect the electrical signal connection. When the inspection is completed and the wiring harness structure needs to be connected to the second steering gear 3, the push plate 16 is pressed, and the elastic member 10 is When squeezed and contracted, the push column 8 slides in the limit sleeve 9 along the mounting hole toward the connector 11, driving the slider 7 connected thereto to slide synchronously horizontally in the slide groove, so that the card block 6 moves toward the middle of the connector 11, and then the connector 11 is inserted into the connecting port of the second diverter 3. At this time, the push plate 16 is released, and the elastic member 10 pushes the push plate 16 and the push column 8 to move to the outside of the connector 11 due to elastic recovery, driving the slider 7 to slide in the opposite direction in the slide groove, so that the card block 6 is stuck in the card groove on the inner wall of the connecting port, realizing the card connection and fixation of the wiring harness structure and the second diverter 3, avoiding frequent plugging and unplugging and wear of the interface. Similarly, when it is necessary to unplug the connection between the connector and the second diverter 3, press the push plate 16 to disengage the card block 6 from the connecting port slot, and the connector 11 can be pulled out.

[0029] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A horizontal X-EPS, characterized in that: include: A first steering gear (1), used for steering drive; A housing worm sub-assembly (2) is connected to the first steering gear (1) and is used to amplify the torque and transmit it to the first steering gear (1); A second steering gear (3) is connected to the housing worm subassembly (2) and is used to convert the vertical torque input by the steering wheel into a horizontal torque; an electronic control all-in-one (4) and a bolt (5), wherein the electronic control all-in-one (4) is connected to the housing worm sub-assembly (2) and is used to receive a sensor signal of the second steering gear (3); and the bolt (5) is connected to the first steering gear (1), the housing worm sub-assembly (2), the second steering gear (3) and the electronic control all-in-one (4) and is used to assemble and fix the first steering gear (1), the housing worm sub-assembly (2), the second steering gear (3) and the electronic control all-in-one (4); A wiring harness structure and a clamping structure, wherein one end of the wiring harness structure is connected to the clamping structure and the other end is connected to the electronic control all-in-one machine (4), and is used for transmitting electrical signals between the electronic control all-in-one machine (4) and the second steering gear (3), and the clamping structure is connected to the second steering gear (3).

2. The horizontal X-EPS according to claim 1, characterized in that: The clamping structure includes: A clamping block (6) and a slider (7), wherein the clamping block (6) is connected to the slider (7), and the slider (7) is inserted into the wiring harness structure; A push column (8) and a limiting sleeve (9), wherein the limiting sleeve (9) is connected to the wiring harness structure, and the push column (8) is inserted into the limiting sleeve (9) and connected to the slider (7); An elastic member (10), wherein the elastic member (10) is sleeved on the pushing column (8).

3. The horizontal X-EPS according to claim 1, characterized in that: The wiring harness structure comprises: Connector 1 (11) and connector (12), the connector is plugged into the second diverter (3), the connector (12) is connected to the connector, and the limiting sleeve (9) is provided on the connector (12); A second connector (13) and a wire (14), wherein the connector is inserted into the electronic control all-in-one machine (4), and two ends of the wire (14) are respectively connected to the second connector (13) and the connector (12).

4. The horizontal X-EPS according to claim 1, characterized in that: A sliding groove is provided on the connecting head, and the sliding block (7) is arranged in the sliding groove.

5. The horizontal X-EPS according to claim 2, characterized in that: Limit blocks (15) are fixedly mounted on both left and right ends of the slider (7), and the limit blocks (15) are inserted into the slide grooves to enable the slider (7) to move horizontally.

6. The horizontal X-EPS according to claim 2, characterized in that: The limiting sleeve (9) is provided with a mounting hole, and the pushing column (88) is inserted into the mounting hole.

7. The horizontal X-EPS according to claim 2, characterized in that: A push plate (16) is fixedly mounted on one end of the push column (8) for a worker to push the push column (8); Two ends of the elastic member (10) are respectively connected to the push plate (16) and the limiting sleeve (9).

8. The horizontal X-EPS according to claim 1, characterized in that: The second steering gear (3) is composed of a pair of spiral bevel gears with an intersection angle of 70°.

9. The horizontal X-EPS according to claim 1, characterized in that: The output shaft of the second steering gear (3) and the input shaft of the first steering gear (1) are connected using internal and external splines.

Images