Performance testing mechanism for steering gear power-assisted motor

Abstract

The utility model relates to the technical field of motor testing, in particular to a steering gear power-assisted motor performance testing mechanism, which comprises a detection platform, and a dynamometer motor mounting seat, a sensor mounting seat and a power-assisted motor mounting seat are sequentially mounted on the detection platform at intervals along the length direction of the detection platform. The dynamometer motor mounting seat is mounted on the detection platform through a first pitching adjusting mechanism, and first transverse adjusting mechanisms are arranged on the two sides of the dynamometer motor mounting seat; the sensor mounting seat is mounted on the detection platform through a second pitching adjusting mechanism; and the output shaft of the dynamometer motor is in transmission connection with the output shaft of the steering gear power-assisted motor through the torque sensor. According to the utility model, the mounting axes of the power measuring motor and the torque sensor can be adjusted, so that the axes of the power measuring motor and the torque sensor are coaxial with the steering gear power-assisted motor to be tested, thereby being suitable for testing different steering gear power-assisted motors, and improving the applicability of the testing mechanism.

Description

Technical Field

[0001] The utility model relates to the technical field of motor testing, in particular to a steering gear power-assisting motor performance testing mechanism. Background Art

[0002] Electric Power Steering (EPS) is a power steering system that directly relies on a power-assisted motor to provide assistive torque. In recent years, it has become a research hotspot in the domestic vehicle industry. While relatively mature technology is available overseas, domestic research is still at a relatively basic stage. EPS performance is directly related to vehicle safety and reliability, driving comfort, and operational agility and portability. The primary component of the mechanical steering system in most electric power steering systems is the torque signal acquisition mechanism, which is unable to meet the testing requirements of power steering systems for different models or types of electric vehicles. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a steering gear power-assisting motor performance testing mechanism, which can be suitable for performance testing of different types of steering gear power-assisting motors.

[0004] The technical solution of the utility model for solving the above technical problems is as follows: A steering gear booster motor performance testing mechanism comprises a detection platform, on which a dynamometer motor mounting seat, a sensor mounting seat and a booster motor mounting seat are installed in sequence and at intervals along the length direction of the detection platform. The dynamometer motor mounting seat is installed on the detection platform through a first pitch adjustment mechanism, and a first lateral adjustment mechanism is provided on both sides of the dynamometer motor mounting seat, which is used to drive the dynamometer motor mounting seat to move in a direction perpendicular to the length direction of the detection platform; the sensor mounting seat is installed on the detection platform through a second pitch adjustment mechanism; a dynamometer motor is fixedly installed on the dynamometer motor mounting seat, a torque sensor is fixedly installed on the sensor mounting seat, and a steering gear booster motor is fixedly installed on the booster motor mounting seat, and the output shaft of the dynamometer motor is transmission-connected to the output shaft of the steering gear booster motor through the torque sensor.

[0005] The beneficial effects of the present utility model are as follows: the installation height and the pitch angle of the dynamometer motor mounting base are adjusted by the first pitch adjustment mechanism, the lateral position of the dynamometer motor mounting base is adjusted by the first lateral adjustment mechanism, and the installation height and the pitch angle of the dynamometer motor mounting base are adjusted by the second pitch adjustment mechanism, so that the installation axis of the dynamometer motor and the torque sensor can be adjusted, so that the axis of the dynamometer motor and the torque sensor is coaxial with the steering gear power-assisting motor to be tested, thereby being suitable for testing different steering gear power-assisting motors and improving the applicability of the testing mechanism.

[0006] On the basis of the above technical solution, the present invention can also be improved as follows.

[0007] Furthermore, the first pitch adjustment mechanism includes a first top screw and a first connecting bolt, a plurality of first threaded holes and a first through hole are provided on the dynamometer motor mounting seat, a plurality of first strip holes are provided on the detection platform and are connected to the first through holes in a one-to-one correspondence, the length direction of the first strip hole extends perpendicular to the length direction of the detection platform, the first top screw is provided in the first threaded hole, the first connecting bolt is provided in the first through hole, the screw section of the first connecting bolt passes through the first strip hole and is threadedly connected to the nut, and the first top screw is pressed against the upper surface of the detection platform.

[0008] The beneficial effect of adopting the above further solution is that the height and pitch angle of the dynamometer motor mounting base can be adjusted by adjusting the first top screw and the first connecting bolt, with a simple structure and convenient adjustment.

[0009] Furthermore, the first lateral adjustment mechanism includes a first adjustment seat respectively arranged on both sides of the dynamometer motor mounting seat, the first adjustment seat is fixedly connected to the detection platform, and a first adjustment bolt is threadedly connected to the first adjustment seat, and the end of the first adjustment bolt is pressed against the side of the dynamometer motor mounting seat.

[0010] The beneficial effect of adopting the above further solution is: by adjusting the first adjusting bolt, the dynamometer motor mounting base can be moved in a direction perpendicular to the length direction of the detection platform, thereby realizing the adjustment of the lateral position of the dynamometer motor mounting base, with a simple structure and easy adjustment.

[0011] Furthermore, the second pitch adjustment mechanism includes a second top screw and a second connecting bolt, a plurality of second threaded holes and a second through hole are provided on the sensor mounting seat, a plurality of second strip holes are provided on the detection platform and are connected to the second through holes in a one-to-one correspondence, the length direction of the second strip hole extends perpendicular to the length direction of the detection platform, the second top screw is provided in the second threaded hole, the second connecting bolt is provided in the second through hole, the screw section of the second connecting bolt passes through the second strip hole and is threadedly connected to the nut, and the second top screw is pressed against the upper surface of the detection platform.

[0012] The beneficial effect of adopting the above further solution is that the height and pitch angle of the sensor mounting base can be adjusted by adjusting the second top screw and the second connecting bolt, which has a simple structure and is easy to adjust.

[0013] Furthermore, a second lateral adjustment mechanism is provided on both sides of the sensor mounting seat, for driving the sensor mounting seat to move in a direction perpendicular to the length direction of the detection platform.

[0014] The beneficial effect of adopting the above further solution is that the provision of the second lateral adjustment mechanism can achieve adjustment of the sensor mounting seat in the lateral direction, so that the installation axis of the torque sensor can be adjusted more conveniently.

[0015] Furthermore, the second lateral adjustment mechanism includes a second adjustment seat respectively arranged on both sides of the sensor mounting seat, the second adjustment seat is fixedly connected to the detection platform, and a second adjustment bolt is threadedly connected to the second adjustment seat, and the end of the second adjustment bolt is pressed against the side of the sensor mounting seat.

[0016] The beneficial effect of adopting the above further solution is: by adjusting the second adjusting bolt, the sensor mounting base can be moved in a direction perpendicular to the length direction of the detection platform, thereby realizing the adjustment of the lateral position of the sensor mounting base, with a simple structure and convenient adjustment.

[0017] Furthermore, the power-assisting motor mounting seat is mounted on the detection platform through a longitudinal adjustment mechanism.

[0018] The beneficial effect of adopting the above further solution is that the provision of the longitudinal adjustment mechanism can facilitate the adjustment of the power-assisting motor mounting seat along the length direction of the detection platform, and facilitate the replacement of the steering gear power-assisting motor to be detected.

[0019] Furthermore, the longitudinal adjustment mechanism includes a locking bolt, and the power-assisting motor mounting seat is provided with a plurality of strip-shaped adjustment holes extending along the length direction of the detection platform. The screw section of the locking bolt passes through the strip-shaped adjustment hole and is threadedly connected to the detection platform.

[0020] The beneficial effect of adopting the above further solution is: loosening the locking bolt allows the power assist motor mounting base to move along the length direction of the strip-shaped adjustment hole, and the mounting structure is simple and easy to operate.

[0021] Furthermore, the output shaft of the dynamometer motor is transmission-connected to one end of the torque sensor via a torque limiter, and the other end of the torque sensor is transmission-connected to the output shaft of the steering gear power-assisting motor via a coupling.

[0022] The beneficial effect of adopting the above further solution is to ensure that the torque sensor will not be damaged by overload.

[0023] Furthermore, a mounting hole is provided on the power-assist motor mounting base, the axis of the mounting hole is horizontally arranged, and a plurality of fixing holes are evenly arranged around the mounting hole. The steering gear power-assist motor is detachably fixedly connected to the power-assist motor mounting base by bolts passing through the fixing holes, and the output shaft of the steering gear power-assist motor extends from the mounting hole.

[0024] The beneficial effect of adopting the above further solution is that it facilitates the replacement and installation of the steering gear power-assisting motor to be tested. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0026] Figure 2 It is a top view of the utility model;

[0027] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0028] 1. Testing platform; 2. Dynamometer motor mounting base; 3. Sensor mounting base; 4. Power-assisted motor mounting base; 5. Dynamometer motor; 6. Torque sensor; 7. Steering gear power-assisted motor; 8. First threaded hole; 9. First through hole; 10. First adjustment base; 11. First adjusting bolt; 12. Second threaded hole; 13. Second through hole; 14. Second adjustment base; 15. Second adjusting bolt; 16. Locking bolt; 17. Bar adjustment hole; 18. Torque limiter; 19. Coupling; 20. Mounting hole; 21. Fixing hole. DETAILED DESCRIPTION

[0029] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0030] like Figure 1 、 Figure 2 As shown, an embodiment of the present utility model includes a detection platform 1, on which a dynamometer motor mount 2, a sensor mount 3 and a power-assisting motor mount 4 are installed in sequence along the length direction of the detection platform 1. The dynamometer motor mount 2 is installed on the detection platform 1 through a first pitch adjustment mechanism, and a first lateral adjustment mechanism is provided on both sides of the dynamometer motor mount 2 to drive the dynamometer motor mount 2 to move in a direction perpendicular to the length direction of the detection platform 1; the sensor mount 3 is installed on the detection platform 1 through a second pitch adjustment mechanism, and a second lateral adjustment mechanism is provided on both sides of the sensor mount 3 to drive the sensor mount 3 to move in a direction perpendicular to the length direction of the detection platform 1.

[0031] The dynamometer motor mounting base 2 is fixedly mounted with a dynamometer motor 5. Specifically, a through hole is provided on the dynamometer motor mounting base 2. One end of the dynamometer motor 5 is mounted on a side of the dynamometer motor mounting base 2 away from the sensor mounting base 3, and the output end of the dynamometer motor 5 is arranged corresponding to the through hole. The output shaft of the dynamometer motor 5 passes through and extends out of the through hole to extend in the direction of the sensor mounting base 3. A flange is fixedly provided around one end of the dynamometer motor 5 facing the sensor mounting base 3, and the flange is detachably fixed to the periphery of the through hole by bolts.

[0032] The torque sensor 6 is fixedly mounted on the sensor mounting base 3. Specifically, a clamp for clamping the torque sensor 6 is fixedly provided on the top of the sensor mounting base 3, and the torque sensor 6 is clamped on the clamp.

[0033] The steering gear boost motor 7 is fixedly mounted on the boost motor mounting base 4. Specifically, a mounting hole 20 is provided on the boost motor mounting base 4. The axis of the mounting hole 20 is horizontally arranged. A plurality of fixing holes 21 are evenly arranged around the mounting hole 20. The steering gear boost motor 7 is detachably fixedly connected to the boost motor mounting base 4 by bolts passing through the fixing holes 21, and the output shaft of the steering gear boost motor 7 extends from the mounting hole 20, which facilitates the replacement and installation of the steering gear boost motor 7 to be tested.

[0034] The output shaft of the dynamometer motor 5 is connected to one end of the torque sensor 6 through a torque limiter 18, and the other end of the torque sensor 6 is connected to the output shaft of the steering gear power motor 7 through a coupling 19 to ensure that the torque sensor 6 will not be damaged by overload.

[0035] In an embodiment of the present utility model, the first pitch adjustment mechanism includes a first top screw and a first connecting bolt. A plurality of first threaded holes 8 and a first through hole 9 are provided on the dynamometer motor mounting base 2. In an embodiment of the present utility model, the number of the first threaded holes 8 and the first through hole 9 are both four. The first threaded holes 8 are arranged one-to-one next to the first through hole 9. The detection platform 1 is provided with a first strip hole that is connected to the first through hole 9 in a one-to-one manner. The length direction of the first strip hole extends perpendicular to the length direction of the detection platform 1. The first top screw is provided in the first threaded hole 8, and the first connecting bolt is provided in the first through hole 9. The screw section of the first connecting bolt passes through the first strip hole and is threadedly connected to the nut. The first top screw is pressed against the upper surface of the detection platform 1. By adjusting the first top screw and the first connecting bolt, the height and pitch angle of the dynamometer motor mounting base 2 can be adjusted. The structure is simple and the adjustment is convenient.

[0036] The first lateral adjustment mechanism includes first adjustment seats 10 respectively arranged on both sides of the dynamometer motor mounting seat 2. The first adjustment seat 10 is fixedly connected to the detection platform 1. A first adjustment bolt 11 is threadedly connected to the first adjustment seat 10. The end of the first adjustment bolt 11 is pressed against the side of the dynamometer motor mounting seat 2. By adjusting the first adjustment bolt 11, the dynamometer motor mounting seat 2 can be moved in a direction perpendicular to the length direction of the detection platform 1, thereby realizing the adjustment of the lateral position of the dynamometer motor mounting seat 2. The structure is simple and the adjustment is convenient.

[0037] In an embodiment of the present utility model, the second pitch adjustment mechanism includes a second top screw and a second connecting bolt. The sensor mounting base 3 is provided with a plurality of second threaded holes 12 and a second through hole 13. The detection platform 1 is provided with a plurality of second strip holes that are connected to the second through holes 13 in a one-to-one correspondence. The length direction of the second strip hole extends perpendicular to the length direction of the detection platform 1. The second top screw is provided in the second threaded hole 12, and the second through hole 13 is provided in the second connecting bolt. The screw section of the second connecting bolt passes through the second strip hole and is threadedly connected to the nut. The second top screw is pressed against the upper surface of the detection platform 1. By adjusting the second top screw and the second connecting bolt, the height and pitch angle of the sensor mounting base 3 can be adjusted. The structure is simple and the adjustment is convenient.

[0038] The second lateral adjustment mechanism includes second adjustment seats 14 respectively arranged on both sides of the sensor mounting seat 3, the second adjustment seat 14 is fixedly connected to the detection platform 1, and a second adjustment bolt 15 is threadedly connected to the second adjustment seat 14. The end of the second adjustment bolt 15 is pressed against the side of the sensor mounting seat 3. By adjusting the second adjustment bolt 15, the sensor mounting seat 3 can be moved in a direction perpendicular to the length direction of the detection platform 1, thereby realizing the adjustment of the lateral position of the sensor mounting seat 3. The structure is simple and the adjustment is convenient.

[0039] In other embodiments of the present invention, the first pitch adjustment mechanism and the second pitch adjustment mechanism may also adopt other structures. For example, the first pitch adjustment mechanism may also adopt a plurality of partitions between the dynamometer motor mount 2 and the detection platform 1, the dynamometer motor mount 2 and the detection platform 1 being connected by bolts and nuts, the height of the dynamometer motor mount 2 being adjusted by setting the number of partitions, and the pitch angle adjustment being achieved by setting the partitions into a structure with a gradual thickness change. Correspondingly, the second pitch adjustment mechanism may also adopt a plurality of partitions between the sensor mount 3 and the detection platform 1, the sensor mount 3 and the detection platform 1 being connected by bolts and nuts, the height of the sensor mount 3 being adjusted by setting the number of partitions, and the pitch angle adjustment being achieved by setting the partitions into a structure with a gradual thickness change.

[0040] In an embodiment of the present utility model, the power-assisting motor mounting seat 4 is installed on the detection platform 1 through a longitudinal adjustment mechanism. Specifically, the longitudinal adjustment mechanism includes a locking bolt 16. The power-assisting motor mounting seat 4 is provided with a plurality of strip adjustment holes 17 whose lengths extend along the length direction of the detection platform 1. The screw section of the locking bolt 16 passes through the strip adjustment hole 17 and is threadedly connected to the detection platform 1. Loosening the locking bolt 16 allows the power-assisting motor mounting seat 4 to move along the length direction of the strip adjustment hole 17. The installation structure is simple and the operation is convenient.

[0041] In other embodiments of the present invention, the longitudinal adjustment mechanism can also adopt a guide rail and guide groove structure, by setting a guide rail and guide groove between the detection platform 1 and the power-assisted motor mounting seat 4 to achieve movement guidance, and then locking it through the locking bolt 16.

[0042] The utility model adjusts the installation height and pitch angle of the dynamometer motor mounting base 2 through the first pitch adjustment mechanism, adjusts the lateral position of the dynamometer motor mounting base 2 through the first lateral adjustment mechanism, and adjusts the installation height and pitch angle of the dynamometer motor mounting base 2 through the second pitch adjustment mechanism, so that the installation axis of the dynamometer motor 5 and the torque sensor 6 can be adjusted, so that the axis of the dynamometer motor 5 and the torque sensor 6 is coaxial with the steering gear power-assisting motor 7 to be tested, thereby being suitable for testing different steering gear power-assisting motors 7 and improving the applicability of the testing mechanism.

[0043] In the description of the present invention, it should be understood that the terms "center", "length", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "inside", "outside", "peripheral", "circumferential" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the system or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0044] In the description of the present invention, “a plurality of” means at least two, such as two, three, etc., unless otherwise clearly defined.

[0045] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0046] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0047] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A steering gear power motor performance testing mechanism, characterized in that: The invention comprises a detection platform (1), wherein a dynamometer motor mounting seat (2), a sensor mounting seat (3) and a power-assisting motor mounting seat (4) are sequentially installed along the length direction of the detection platform (1) at intervals, the dynamometer motor mounting seat (2) being installed on the detection platform (1) via a first pitch adjustment mechanism, and first lateral adjustment mechanisms are provided on both sides of the dynamometer motor mounting seat (2) for driving the dynamometer motor mounting seat (2) to move in a direction perpendicular to the length direction of the detection platform (1); the sensor mounting seat (3) is installed on the detection platform (1) via a second pitch adjustment mechanism; a dynamometer motor (5) is fixedly installed on the dynamometer motor mounting seat (2), a torque sensor (6) is fixedly installed on the sensor mounting seat (3), and a steering gear power-assisting motor (7) is fixedly installed on the power-assisting motor mounting seat (4), and the output shaft of the dynamometer motor (5) is transmission-connected to the output shaft of the steering gear power-assisting motor (7) via the torque sensor (6).

2. A steering gear power assist motor performance testing mechanism according to claim 1, characterized in that: The first pitch adjustment mechanism includes a first top screw and a first connecting bolt. The dynamometer motor mounting seat (2) is provided with a plurality of first threaded holes (8) and a first through hole (9). The detection platform (1) is provided with a plurality of first strip holes that are connected to the first through holes (9) in a one-to-one correspondence. The length direction of the first strip holes extends perpendicular to the length direction of the detection platform (1). The first top screw is provided in the first threaded hole (8). The first through hole (9) is provided in the first connecting bolt. The screw section of the first connecting bolt passes through the first strip hole and is threadedly connected to the nut. The first top screw is pressed against the upper surface of the detection platform (1).

3. A steering gear power assist motor performance testing mechanism according to claim 2, characterized in that: The first lateral adjustment mechanism comprises first adjustment seats (10) respectively arranged on both sides of the dynamometer motor mounting seat (2); the first adjustment seat (10) is fixedly connected to the detection platform (1); a first adjustment bolt (11) is threadedly connected to the first adjustment seat (10); the end of the first adjustment bolt (11) is pressed against the side of the dynamometer motor mounting seat (2).

4. A steering gear power assist motor performance testing mechanism according to claim 1, characterized in that: The second pitch adjustment mechanism includes a second top screw and a second connecting bolt. The sensor mounting seat (3) is provided with a plurality of second threaded holes (12) and second through holes (13). The detection platform (1) is provided with a plurality of second strip holes that are connected to the second through holes (13) in a one-to-one correspondence. The length direction of the second strip holes extends perpendicular to the length direction of the detection platform (1). The second top screw is provided in the second threaded hole (12). The second connecting bolt is provided in the second through hole (13). The screw section of the second connecting bolt passes through the second strip hole and is threadedly connected to the nut. The second top screw is pressed against the upper surface of the detection platform (1).

5. A steering gear power assist motor performance testing mechanism according to claim 4, characterized in that: Second lateral adjustment mechanisms are provided on both sides of the sensor mounting seat (3) for driving the sensor mounting seat (3) to move in a direction perpendicular to the length direction of the detection platform (1).

6. A steering gear power assist motor performance testing mechanism according to claim 5, characterized in that: The second lateral adjustment mechanism comprises second adjustment seats (14) respectively arranged on both sides of the sensor mounting seat (3); the second adjustment seats (14) are fixedly connected to the detection platform (1); a second adjustment bolt (15) is threadedly connected to the second adjustment seat (14); the end of the second adjustment bolt (15) is pressed against the side surface of the sensor mounting seat (3).

7. A steering gear power assist motor performance testing mechanism according to claim 1, characterized in that: The booster motor mounting seat (4) is mounted on the detection platform (1) via a longitudinal adjustment mechanism.

8. A steering gear power assist motor performance testing mechanism according to claim 7, characterized in that: The longitudinal adjustment mechanism includes a locking bolt (16); the power assist motor mounting seat (4) is provided with a plurality of strip-shaped adjustment holes (17) extending along the length direction of the detection platform (1); and the screw section of the locking bolt (16) passes through the strip-shaped adjustment hole (17) and is threadedly connected to the detection platform (1).

9. A steering gear power assist motor performance testing mechanism according to any one of claims 1 to 8, characterized in that: The output shaft of the dynamometer motor (5) is transmission-connected to one end of the torque sensor (6) via a torque limiter (18), and the other end of the torque sensor (6) is transmission-connected to the output shaft of the steering gear power-assisting motor (7) via a coupling (19).

10. A steering gear power assist motor performance testing mechanism according to any one of claims 1 to 8, characterized in that: The power-assist motor mounting seat (4) is provided with a mounting hole (20), the axis of the mounting hole (20) is arranged horizontally, and a plurality of fixing holes (21) are evenly arranged around the mounting hole (20). The steering gear power-assist motor (7) is detachably fixedly connected to the power-assist motor mounting seat (4) by bolts passing through the fixing holes (21), and the output shaft of the steering gear power-assist motor (7) extends out from the mounting hole (20).

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