Steering system test equipment

Abstract

The utility model discloses a steering system test device, which includes: a test bench body; a steering system, which is suitable for being installed on the test bench body and includes a tie rod assembly and a sealing component; a spray mechanism, which is arranged on the test bench body and located above the sealing component, and is used to spray liquid onto the sealing component; a driving member, which is arranged on the test bench body, and is fixedly connected to the tie rod assembly, and is used to drive the tie rod assembly to move. According to the steering system test device of the embodiment of the utility model, by arranging a driving member on the test bench body to drive the tie rod assembly to move, the tie rod assembly can be simulated to jump up and down with the wheel; and by arranging a spray mechanism on the test bench body to spray muddy water onto the sealing component of the steering system, the tie rod assembly can be simulated to jump up and down with the wheel during the muddy water test, so that the sealing performance of the sealing component can be assessed, and it is beneficial to improve the sealing performance of the sealing component.

Description

Technical Field

[0001] The utility model relates to the technical field of testing devices, in particular to a steering system testing device. Background Art

[0002] In the related technology, due to the special working scenario of the steering gear, the steering gear body is connected to the vehicle subframe, and the steering gear tie rod is connected to the wheel horn. However, due to different driving conditions of the vehicle, the wheels will bounce up and down with the road conditions, thereby affecting the sealing performance of the steering gear dust cover. Therefore, how to simulate the up and down bouncing of the steering gear tie rod with the wheel to evaluate the sealing performance of the dust cover has certain research value for improving the sealing performance of the dust cover. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide a steering system test device, which can simulate the pull rod assembly of the steering system to bounce up and down with the wheel to test the sealing performance of the sealing component, and is conducive to improving the sealing performance of the sealing component.

[0004] According to the steering system testing device of the embodiment of the utility model, it includes: a test bench body; a steering system, which is suitable for being installed on the test bench body and includes a tie rod assembly and a sealing component; a spray mechanism, which is arranged on the test bench body and located above the sealing component, and is used to spray liquid onto the sealing component; a driving member, which is arranged on the test bench body, and is fixedly connected to the tie rod assembly, and is used to drive the tie rod assembly to move.

[0005] According to the steering system testing device of the embodiment of the utility model, a driving member is arranged on the test bench body, and the driving member is connected to the tie rod assembly of the steering system, so that the driving member can drive the tie rod assembly to move, so as to simulate the tie rod assembly jumping up and down with the wheel; and a spraying mechanism is arranged on the test bench body to spray muddy water on the sealing component of the steering system, so that the tie rod assembly can be simulated to jump up and down with the wheel during the muddy water test, so that the sealing performance of the sealing component can be evaluated, and it is beneficial to improve the sealing performance of the sealing component.

[0006] According to some embodiments of the utility model, the stand body has a mounting plate and a fixing plate, the fixing plate is fixedly connected to the stand body, the mounting plate is slidably connected to the fixing plate, and the driving member is suitable for being mounted on the mounting plate.

[0007] In some examples, one of the fixing plate and the mounting plate has a slider, and the other of the fixing plate and the mounting plate has a slide rail.

[0008] In some examples, the steering system testing device further includes: a transition connector, and the driving member is fixedly connected to the tie rod assembly via the transition connector.

[0009] In some examples, the driving member is a cylinder, a push rod of the cylinder is fixedly connected to the transition connecting piece, the transition connecting piece is fixedly connected to the pull rod assembly, and the push rod of the cylinder is suitable for driving the pull rod assembly to move along the extension direction of the push rod.

[0010] In some examples, the steering system testing device also includes: a screw, the driving member is a driving motor, the output shaft of the driving motor is fixedly connected to the screw, the transition connecting piece is threadedly connected to the screw, the transition connecting piece is fixedly connected to the pull rod assembly, and the driving motor is suitable for driving the screw to rotate so as to drive the pull rod assembly to move along the extension direction of the screw through the transition connecting piece.

[0011] In some examples, the steering system testing device also includes: a protective cover, the test bench body has a limit opening, the driving member is suitable for passing through the limit opening, the limit opening extends along the extension direction of the slide rail, and the protective cover is arranged on a side of the limit opening close to the steering system.

[0012] According to some embodiments of the utility model, the steering system testing device also includes: a control mechanism, which is installed on the test bench body and is used to control the driving member to drive the pull rod assembly to move, and the control mechanism includes: an electrical control cabinet, an FRL triple filter, a pressure regulating valve, a proportional valve and a solenoid valve, the FRL triple filter, the pressure regulating valve, the proportional valve and the solenoid valve are electrically connected to the electrical control cabinet respectively, the FRL triple filter, the pressure regulating valve, the proportional valve and the solenoid valve are connected to each other, and the solenoid valve is connected to the driving member.

[0013] According to some embodiments of the utility model, the spray mechanism includes: a spray pipe and a plurality of spray heads, the plurality of spray heads are respectively connected to the spray pipe, the spray pipe extends along the arrangement direction of the sealing components of the steering system, and the plurality of spray heads are arranged at intervals along the extension direction of the spray pipe, for spraying liquid onto the sealing components.

[0014] According to some embodiments of the utility model, the steering system also includes: a driving end, an angle sensor, a displacement sensor, a universal joint, a steering gear and a dust cover, the driving end, the universal joint and the steering gear are sequentially connected in transmission, the angle sensor is arranged on the driving end to detect the rotation angle of the driving end, the displacement sensor is arranged on the gantry body or the driving member to detect the displacement of the driving structure of the driving member, the steering gear and at least a part of the pull rod assembly are arranged in the dust cover, the pull rod assembly is arranged at the end of the steering gear, the pull rod assembly includes an inner pull rod and an outer pull rod, the inner pull rod is connected to the steering gear, the outer pull rod is connected to the inner pull rod, and the driving member is fixedly connected to the outer pull rod.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0017] Figure 1 is a schematic structural diagram of a steering system testing device according to some embodiments of the utility model;

[0018] Figure 2 yes Figure 1 A magnified view of the structure in center.

[0019] Reference numerals:

[0020] Steering system test device 100,

[0021] The stand body 10, the mounting plate 11, the slider 111, the fixing plate 12, the slide rail 121, the displacement sensor 13,

[0022] Tie rod assembly 21, inner tie rod 211, outer tie rod 212, drive end 22, angle sensor 23, universal joint 24, steering gear 25, dust cover 26,

[0023] Spray mechanism 30, spray pipe 31, spray head 32,

[0024] Cylinder 40, push rod 41,

[0025] Transition piece 50, protective cover 60,

[0026] Electrical control cabinet 71, FRL triple filter 72, pressure regulating valve 73, proportional valve 74, solenoid valve 75. DETAILED DESCRIPTION

[0027] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0028] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] Reference below Figure 1-Figure 2 A steering system testing device 100 according to an embodiment of the present invention is described.

[0031] like Figure 1-Figure 2 As shown, the steering system testing device 100 according to the embodiment of the utility model includes: a test bench body 10, a steering system, a spray mechanism 30 and a driving member. The steering system can be installed on the test bench body 10, and the steering system includes a tie rod assembly 21 and a sealing component (for example, a dust cover 26). The driving member can be set on the test bench body 10, and the driving member is fixedly connected to the tie rod assembly 21. The driving member can drive the tie rod assembly 21 to move, and can simulate the tie rod assembly 21 to jump up and down with the wheel, so as to realize the assessment of the sealing performance of the sealing component.

[0032] The spray mechanism 30 can be set on the test bench body 10. The spray mechanism 30 is located above the sealing component. The spray mechanism 30 can spray liquid (for example, muddy water) onto the sealing component. Thus, during the muddy water test, the pull rod assembly 21 can be simulated to bounce up and down with the wheel, thereby improving the assessment effect of the sealing performance of the sealing component and helping to improve the sealing performance of the sealing component.

[0033] According to the steering system testing device 100 of the embodiment of the utility model, a driving member is arranged on the test bench body 10, and the driving member is connected to the tie rod assembly 21 of the steering system, so that the driving member can drive the tie rod assembly 21 to move, so as to simulate the tie rod assembly 21 jumping up and down with the wheel; and a spraying mechanism 30 is arranged on the test bench body 10 to spray muddy water on the sealing component of the steering system, so that the tie rod assembly 21 can be simulated to jump up and down with the wheel during the muddy water test, so that the sealing performance of the sealing component can be evaluated, and it is beneficial to improve the sealing performance of the sealing component.

[0034] like Figure 1 and Figure 2 As shown, according to some embodiments of the present invention, the platform body 10 has a mounting plate 11 and a fixing plate 12, the fixing plate 12 is fixedly connected to the platform body 10, the mounting plate 11 is slidably connected to the fixing plate 12, and the driving member is suitable for being installed on the mounting plate 11, thereby, the steering system can drive the driving member to move through the tie rod assembly 21 when turning, and it can be ensured that the driving member drives the tie rod assembly 21 along the vertical direction (such as when the steering system turns) when the steering system turns. Figure 1 The pull rod assembly 21 can be simulated to bounce up and down with the wheel when the steering system turns, thereby improving the assessment effect of the sealing performance of the sealing component.

[0035] It can be understood that the driving member can be connected to the mounting plate 11 through a fastener, and the fastener can be a screw, a bolt or a screw, etc., which can improve the connection effect between the driving member and the mounting plate 11 and facilitate operation; of course, the driving member can be snap-connected with the mounting plate 11, which is based on ensuring the connection effect between the driving member and the mounting plate 11, and is easy to disassemble and replace the driving member.

[0036] like Figure 2 As shown, in some examples, the fixing plate 12 may have a slide rail 121, and the mounting plate 11 may have a slider 111. The slider 111 may be slidably matched with the slide rail 121, so that the mounting plate 11 may be moved along the extension direction of the slide rail 121 (such as Figure 2 The mounting plate 112 can slide in the left and right directions (as shown) relative to the fixed plate 12, thereby facilitating the smoothness of the driving member movement driven by the pull rod assembly 21 and improving the evaluation effect of the sealing performance of the sealing component; alternatively, the fixed plate 12 can have a slider 111, the mounting plate 11 can have a slide rail 121, and the slider 111 can slide in cooperation with the slide rail 121.

[0037] like Figure 1 As shown, in some examples, the steering system testing device 100 also includes: a transition connector 50, through which the driving member is fixedly connected to the tie rod assembly 21, that is, by replacing the transition connector 50, a variety of driving members can be fixedly connected to the tie rod assembly 21 through the transition connector 50, and the driving member can be fixedly connected to a variety of tie rod assemblies 21 through the transition connector 50, thereby improving the adaptability of the steering system and the steering system testing device 100 and facilitating operation.

[0038] In addition, by replacing the transition connector 50, the driving member can be reconnected to the tie rod assembly 21 through the transition connector 50. Compared with the technical solution in which the driving member is directly connected to the tie rod assembly 21, the steering system test device 100 can prevent the entire tie rod assembly 21 or the driving member from being replaced due to a break in the connection between the driving member and the tie rod assembly 21. On the basis of ensuring the normal operation of the steering system test device 100, it is easy to maintain and helps to reduce maintenance costs.

[0039] like Figure 1 and Figure 2 As shown, in some examples, the driving member can be a cylinder 40, a push rod 41 of the cylinder 40 is fixedly connected to a transition connector 50, and the transition connector 50 is fixedly connected to the tie rod assembly 21. The cylinder 40 can drive the push rod 41 to extend and retract, so as to drive the tie rod assembly 21 to extend along the extension direction of the push rod 41 (such as Figure 1 The up and down directions (as shown) movement can simulate the pull rod assembly 21 jumping up and down with the wheel, thereby realizing the assessment of the sealing performance of the sealing component and being beneficial to improving the reliability of the steering system testing device 100.

[0040] In some examples, the steering system test device 100 further includes: a lead screw, the driving member may be a driving motor, the output shaft of the driving motor is fixedly connected to the lead screw, the transition connector 50 is threadedly connected to the lead screw, the transition connector 50 is fixedly connected to the tie rod assembly 21, and the driving motor can drive the lead screw to rotate so that the transition connector 50 is rotated along the extension direction of the lead screw (such as Figure 1 The steering system test device 100 can be used to test the sealing performance of the sealing components by simulating the pull rod assembly 21 jumping up and down with the wheel (up and down directions as shown) and driving the pull rod assembly 21 to move, thereby realizing the assessment of the sealing performance of the sealing components and being beneficial to improving the working stability of the steering system test device 100.

[0041] like Figure 1 As shown, in some examples, the steering system testing device 100 further includes: a protective cover 60, the test bench body 10 has a limit opening, the driving member can pass through the limit opening, and the limit opening can be along the extension direction of the slide rail 121 (such as Figure 1The protective cover 60 can be arranged on the side of the limit opening close to the steering system (such as Figure 1 The upper side shown in the figure) can cover the limit opening to prevent muddy water from dripping onto the driving part through the limit opening, thereby ensuring the normal operation of the steering system testing device 100.

[0042] like Figure 1 As shown, according to some embodiments of the present invention, the spray mechanism 30 includes: a spray pipe 31 and a plurality of spray heads 32, the plurality of spray heads 32 are respectively connected to the spray pipe 31, and the spray heads 32 can spray liquid (for example, muddy water) to the sealing component, so as to simulate the pull rod assembly 21 jumping up and down with the wheel during the muddy water test, wherein the spray pipe 31 can be arranged along the direction of the sealing component of the steering system (such as Figure 1 The plurality of spray heads 32 may extend in the extending direction of the spray pipe 31 (such as the left and right direction shown in FIG. Figure 1 The spacing arrangement (in the left and right direction as shown) can expand the spraying range of the spraying mechanism 30 and ensure that the muddy water is in full contact with the sealing component, which is beneficial to improving the assessment effect of the sealing performance of the sealing component.

[0043] like Figure 1 and Figure 2 As shown, according to some embodiments of the present invention, the steering system testing device 100 also includes: a control mechanism, which can be installed on the test bench body 10, and the control mechanism can control the driving member to drive the tie rod assembly 21 to move, so as to realize the simulation of the tie rod assembly 21 jumping up and down with the wheel, and is conducive to realizing the control of the jumping angle of the tie rod assembly 21, and is conducive to realizing the control of the jumping speed of the tie rod assembly 21.

[0044] The control mechanism includes: an electrical control cabinet 71, an FRL triple filter 72, a pressure regulating valve 73, a proportional valve 74 and a solenoid valve 75. The FRL triple filter 72, the pressure regulating valve 73, the proportional valve 74 and the solenoid valve 75 are electrically connected to the electrical control cabinet 71 respectively, so that the PLC processing system in the electrical control cabinet 71 can control the operation of the above-mentioned components. The FRL triple filter 72, the pressure regulating valve 73, the proportional valve 74 and the solenoid valve 75 are interconnected, and the solenoid valve 75 is connected to the driving part (for example, the cylinder 40), that is, the compressed air can pass through the FRL triple filter 72, the pressure regulating valve 73, the proportional valve 74 and the solenoid valve 75 in sequence, and enter the cylinder 40 to drive the push rod 41 of the cylinder 40 to extend and retract.

[0045] It can be understood that the test personnel can operate the electrical control cabinet 71 to introduce compressed air from the outside into the steering system test device 100. First, the compressed air can pass through the FRL triple filter 72 so that the FRL triple filter 72 can initially filter out oil, water and various impurities in the compressed air. Then, the compressed air can flow through the pressure regulating valve 73 so that the pressure regulating valve 73 adjusts the air pressure of the compressed air to the pressure required for the cylinder 40 to work. Next, the compressed air can flow through the proportional valve 74 so that the proportional valve 74 adjusts the intake flow and pressure of the compressed air. Finally, the PLC processing system can control the operation of the solenoid valve 75, so that the compressed air can enter the cylinder 40 to drive the push rod 41 to extend and retract, that is, the PLC processing system controls the push rod 41 of the cylinder 40 to rise and fall, so as to realize the simulation of the up and down jumping of the pull rod assembly 21 with the wheel.

[0046] like Figure 1 As shown, according to some embodiments of the utility model, the steering system also includes: a driving end 22, an angle sensor 23, a universal joint 24, a steering gear 25 and a dust cover 26. The driving end 22, the universal joint 24 and the steering gear 25 are sequentially connected in transmission, that is, the driving end 22 can drive the steering gear 25 to move through the universal joint 24, and the tie rod assembly 21 can be arranged at the end of the steering gear 25, thereby, the movement of the steering gear 25 can drive the tie rod assembly 21 to move, so as to realize the steering of the steering system, and the driving member moves together with the tie rod assembly 21.

[0047] Among them, the tie rod assembly 21 includes: an inner tie rod 211 and an outer tie rod 212, the inner tie rod 211 is connected to the steering gear 25, the outer tie rod 212 is connected to the inner tie rod 211, and the driving member is fixedly connected to the outer tie rod 212 through a transition connector 50. Specifically, the end of the outer tie rod 212 away from the inner tie rod 211 has a ball head, and the transition connector 50 can be fixedly connected to the ball head. Therefore, the movement of the steering gear 25 can drive the movement of the inner tie rod 211, so as to drive the movement of the driving member through the outer tie rod 212, which can simulate the tie rod assembly 21 jumping up and down with the wheel when the steering system turns, thereby improving the assessment effect of the sealing performance of the sealing components.

[0048] The angle sensor 23 can be set on the driving end 22, the angle sensor 23 can detect the rotation angle of the driving end 22, and the acquisition card in the electrical control cabinet 71 can collect the angle signal detected by the angle sensor 23, and send the angle signal to the PLC processing system. The steering gear 25 and at least a part of the pull rod assembly 21 can be set in the dust cover 26, which can realize the sealing of the local structure of the steering system, and the spray mechanism 30 can spray muddy water onto the dust cover 26, which is conducive to the assessment of the sealing performance of the dust cover 26.

[0049] like Figure 1 and Figure 2As shown, according to some embodiments of the utility model, the steering system testing device 100 also includes: a displacement sensor 13, which can be arranged on the test bench body 10, or the displacement sensor 13 can be arranged on the driving member, thereby, the displacement sensor 13 can detect the displacement of the driving structure of the driving member, wherein the driving member can be a cylinder 40, the driving structure can be a push rod 41 of the cylinder 40, and the cylinder 40 can drive the push rod 41 to move, that is, the displacement sensor 13 can detect the displacement of the push rod 41, and the acquisition card in the electrical control cabinet 71 can collect the displacement signal detected by the displacement sensor 13, and send the displacement signal to the PLC processing system.

[0050] According to some embodiments of the utility model, the test personnel can control the operation of the steering system test device 100 by active control. The specific working process of the steering system test device 100 is as follows: the test personnel can operate the electrical control cabinet 71 to allow compressed air to enter the steering system test device 100 from the outside. First, the compressed air can pass through the FRL triple filter 72, so that the FRL triple filter 72 can preliminarily filter out oil, water and various impurities in the compressed air.

[0051] Subsequently, the compressed air can flow through the pressure regulating valve 73 so that the pressure regulating valve 73 adjusts the air pressure of the compressed air to the pressure required for the operation of the cylinder 40. Next, the compressed air can flow through the proportional valve 74 so that the proportional valve 74 adjusts the intake flow and pressure of the compressed air. Finally, the PLC processing system can control the operation of the solenoid valve 75, allowing the compressed air to enter the cylinder 40 to drive the push rod 41 to extend and retract, that is, the PLC processing system controls the rise and fall of the push rod 41 of the cylinder 40, so as to realize the simulation of the up and down jumping of the pull rod assembly 21 with the wheel.

[0052] It should be noted that the present application may adopt a technical solution in which a driving motor drives the lead screw to rotate to drive the pull rod assembly 21 to move. Specifically, the test personnel may operate the electrical control cabinet 71 to directly control the driving motor to drive the lead screw to rotate. Since the transition connector 50 is threadedly connected to the lead screw, the transition connector 50 may move along the extension direction of the lead screw (such as Figure 1 The pull rod assembly 21 moves in the up and down directions as shown, thereby simulating the pull rod assembly 21 jumping up and down with the wheel.

[0053] According to some embodiments of the present invention, the tester can control the steering system test device 100 to work in a follow-up control manner. The specific working process of the steering system test device 100 is as follows:

[0054] The test personnel can set the steering gear line angle ratio and the jumping angle of the outer tie rod 212 in the display screen in advance. The steering gear line angle ratio is the corresponding relationship between the rotation angle of the driving end 22 and the displacement of the rack end. The acquisition card in the electrical control cabinet 71 can collect the angle signal detected by the angle sensor 23, and send the angle signal to the PLC processing system. The PLC processing system will associate the rotation angle of the driving end 22 with the pre-input steering gear line angle ratio, that is, the rotation angle of the driving end 22 multiplied by the steering gear line angle ratio is equal to the displacement of the rack end, so that the rack displacement data can be obtained.

[0055] Of course, the acquisition card in the electrical control cabinet 71 can acquire the displacement signal detected by the displacement sensor 13, and send the displacement signal to the PLC processing system to directly obtain the rack displacement data.

[0056] The tester can set the jumping angle of the outer tie rod 212, the distance from the ball head of the outer tie rod 212 to the inner tie rod 211, and the correspondence between the required jumping angle of the tie rod and the displacement of the rack end, or the corresponding relationship between the steering gear swing angle and the displacement of the rack end in advance on the display screen, which is conducive to controlling the jumping speed of the outer tie rod 212.

[0057] The compressed air can enter the cylinder 40 after passing through the FRL triple filter 72, the pressure regulating valve 73, the proportional valve 74 and the solenoid valve 75 in sequence, and the PLC processing system in the electrical control cabinet 71 can control the solenoid valve 75 to reverse the airflow, thereby controlling the reciprocating motion of the push rod 41 of the cylinder 40, and at the same time, the driving part moves with the driven rack end, which is conducive to the independent operation of the driving part.

[0058] The PLC processing system in the electrical control cabinet 71 can receive the angle signal detected by the angle sensor 23, and combine the angle signal with the pre-input steering gear line angle ratio to generate a rack displacement signal, and load the pre-set distance from the ball head of the outer tie rod 212 to the inner tie rod 211 and the jumping angle of the outer tie rod 212 to obtain the distance that the push rod 41 of the cylinder 40 needs to extend, and the displacement sensor 13 can check the displacement of the push rod 41 and feedback the displacement signal to the PLC processing system. Therefore, the PLC processing system can control the opening of the proportional valve 74 and the direction of the solenoid valve 75 to directly control the displacement of the push rod 41 of the cylinder 40, so as to indirectly control the jumping angle of the outer tie rod 212, which is beneficial to control the jumping angle of the outer tie rod 212 when the tie rod assembly 21 moves with the rack end.

[0059] Other structures and operations of the steering system test device 100 according to the embodiment of the utility model are known to those skilled in the art and will not be described in detail here. In the description of the utility model, "first feature" and "second feature" may include one or more of the features. Among them, the up-down direction, left-right direction and front-back direction are based on the up-down direction, left-right direction and front-back direction shown in the figure.

[0060] In the description of the present utility model, unless otherwise clearly specified and limited, a first feature "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature "above", "above" and "above" a second feature include that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.

[0061] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", 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 utility model. In this specification, the schematic representation of the above terms does 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.

[0062] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A steering system testing device (100), characterized in that: include: A stand body (10); A steering system, the steering system being suitable for being mounted on the platform body (10) and comprising a tie rod assembly (21) and a sealing component; a spray mechanism (30), the spray mechanism (30) being arranged on the stand body (10) and located above the sealing component, and being used for spraying liquid onto the sealing component; A driving member is arranged on the platform body (10), and the driving member is fixedly connected to the pull rod assembly (21) to drive the pull rod assembly (21) to move.

2. The steering system testing device (100) according to claim 1, characterized in that: The platform body (10) comprises a mounting plate (11) and a fixing plate (12), wherein the fixing plate (12) is fixedly connected to the platform body (10), the mounting plate (11) is slidably connected to the fixing plate (12), and the driving member is suitable for being mounted on the mounting plate (11).

3. The steering system testing device (100) according to claim 2, characterized in that: One of the fixing plate (12) and the mounting plate (11) has a sliding block (111), and the other of the fixing plate (12) and the mounting plate (11) has a sliding rail (121).

4. The steering system testing device (100) according to claim 2, characterized in that: Also includes: A transition connecting piece (50), wherein the driving piece is fixedly connected to the pull rod assembly (21) via the transition connecting piece (50).

5. The steering system testing device (100) according to claim 4, characterized in that: The driving member is a cylinder (40), a push rod (41) of the cylinder (40) is fixedly connected to the transition connecting member (50), the transition connecting member (50) is fixedly connected to the pull rod assembly (21), and the push rod (41) of the cylinder (40) is suitable for driving the pull rod assembly (21) to move along the extension direction of the push rod (41).

6. The steering system testing device (100) according to claim 4, characterized in that: Also includes: The lead screw, the driving member is a driving motor, the output shaft of the driving motor is fixedly connected to the lead screw, the transition connecting member (50) is threadedly connected to the lead screw, the transition connecting member (50) is fixedly connected to the pull rod assembly (21), and the driving motor is suitable for driving the lead screw to rotate, so as to drive the pull rod assembly (21) to move along the extension direction of the lead screw through the transition connecting member (50).

7. The steering system testing device (100) according to claim 3, characterized in that: Also includes: The protective cover (60) is provided with a limiting opening on the platform body (10), the driving member is suitable for passing through the limiting opening, the limiting opening extends along the extension direction of the slide rail (121), and the protective cover (60) is arranged on a side of the limiting opening close to the steering system.

8. The steering system testing device (100) according to claim 1, characterized in that: Also includes: A control mechanism is installed on the platform body (10) and is used to control the driving member to drive the pull rod assembly (21) to move. The control mechanism includes: an electrical control cabinet (71), an FRL triple filter (72), a pressure regulating valve (73), a proportional valve (74) and a solenoid valve (75). The FRL triple filter (72), the pressure regulating valve (73), the proportional valve (74) and the solenoid valve (75) are respectively electrically connected to the electrical control cabinet (71), the FRL triple filter (72), the pressure regulating valve (73), the proportional valve (74) and the solenoid valve (75) are connected to each other, and the solenoid valve (75) is connected to the driving member.

9. The steering system testing device (100) according to claim 1, characterized in that: The spray mechanism (30) comprises: a spray pipe (31) and a plurality of spray heads (32), wherein the plurality of spray heads (32) are respectively connected to the spray pipe (31), the spray pipe (31) extends along the arrangement direction of the sealing components of the steering system, and the plurality of spray heads (32) are arranged at intervals along the extension direction of the spray pipe (31) for spraying liquid onto the sealing components.

10. The steering system testing device (100) according to any one of claims 1 to 9, characterized in that: The steering system further comprises: a driving end (22), an angle sensor (23), a displacement sensor (13), a universal joint (24), a steering gear (25) and a dust cover (26); the driving end (22), the universal joint (24) and the steering gear (25) are sequentially connected in a transmission manner; the angle sensor (23) is arranged on the driving end (22) to detect the rotation angle of the driving end (22); the displacement sensor (13) is arranged on the platform body (10) or the driving member to detect the The driving structure of the driving member is displaced, the steering gear (25) and at least a part of the tie rod assembly (21) are arranged in the dust cover (26), the tie rod assembly (21) is arranged at the end of the steering gear (25), the tie rod assembly (21) includes an inner tie rod (211) and an outer tie rod (212), the inner tie rod (211) is connected to the steering gear (25), the outer tie rod (212) is connected to the inner tie rod (211), and the driving member is fixedly connected to the outer tie rod (212).

Images