Linear load mechanism for steering abnormal sound test

Abstract

The utility model provides a linear load mechanism for a steering abnormal sound test. The linear load mechanism comprises a mounting seat, a power source, an output rod, a sensor and an adapter, a connecting screw hole is formed in one end, far away from the output rod, of the sensor; the adapter piece comprises a first adapter unit, a second adapter unit and a fixing piece, the first adapter unit comprises a first connecting plate and a first connector, the second adapter unit comprises a second connecting plate and a second connector, and an adapter hole extending perpendicular to the second connecting plate is formed in the middle of the second connector; the first connecting plate is provided with a first connecting hole, the second connecting plate is provided with a plurality of second connecting holes corresponding to the first connecting hole, and the first connecting plate and the second connecting plate can be relatively fixed through the fixing piece. According to the utility model, by observing the fitting condition of the first connecting plate and the second connecting plate, whether the connecting plate is in the optimal butt joint direction or not can be quickly judged and adjusted, and the preparation time before an abnormal sound test is saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a straight line load mechanism for steering abnormal sound test. BACKGROUND

[0002] Automobile abnormal sound is an important factor influencing the use comfort, and the manufacturer usually carries out abnormal sound test to the vehicle to find and eliminate the non-steady state noise, improve the product quality and promote the satisfaction of customers.

[0003] The steering abnormal sound test is generally completed through the steering abnormal sound test bench, the steering gear is fixed in the experiment process, the straight line load mechanism is used to apply load to the steering tie rod at both ends of the steering gear, and the steering motion of the vehicle is simulated through the steering assist system in the middle of the steering gear, so that the abnormal sound condition of the steering gear during operation is analyzed. In the prior art, the straight line load mechanism generally comprises an output end head, the end of the output end head is connected with a sensor, the sensor is provided with a nut structure, in the ideal state, the steering tie rod is coaxial with the nut structure and is horizontally connected, the connection between the straight line load mechanism and the steering tie rod is realized, in the actual situation, the coincidence between the sensor and the steering tie rod is not easy to observe with naked eyes, and it is necessary to spend a certain amount of time for adjustment, especially when testing a plurality of different models of steering gears, the test efficiency is affected. UTILITY MODEL CONTENTS

[0004] In order to solve the above problems, the utility model provides a straight line load mechanism for steering abnormal sound test, the mechanism is higher in interfacing efficiency with the steering gear, and the preparation time of the abnormal sound test can be reduced to a certain extent.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] The utility model provides a linear load mechanism for steering heterophonic test, including mounting seat, with mounting seat fixed connection power source, power source connection output rod, with sensor connected with the end of output rod and with the detachable connection of sensor adapter, the end of sensor away from output rod forms the connecting screw hole, the adapter includes first adapter unit, second adapter unit and fixing piece, the first adapter unit includes first connecting plate and with first connecting plate middle part vertical connection first joint, first joint is equipped with the external thread of can form the thread cooperation with connecting screw hole, the second adapter unit includes second connecting plate and with second connecting plate middle part connection second joint, the second joint middle part forms the adapter hole with internal thread of perpendicular to second connecting plate extension, first connecting plate is equipped with first connecting hole, second connecting plate is equipped with a plurality of second connecting hole with first connecting hole corresponds, fixing piece can pass through first connecting hole with second connecting hole and makes first connecting plate with second connecting plate relative fixation.

[0007] Further, the first connecting hole is a screw hole, and the second connecting hole is a light hole, or the first connecting hole is a light hole, and the connecting hole is a screw hole.

[0008] Further, the first connecting plate is provided with at least three first connecting holes, and the plurality of first connecting holes are rotationally symmetrically arranged around the first joint.

[0009] Further, the linear load mechanism further comprises a base, the upper side of the base is provided with a guide rail, and the bottom of the mounting seat is provided with a guide block in sliding connection with the guide rail.

[0010] Further, the two sides of the guide rail are provided with limiting sliding grooves, and the guide block is provided with a limiting chuck in sliding fit with the limiting sliding grooves.

[0011] Further, the linear load mechanism further comprises an adjusting assembly, the adjusting assembly comprises two positioning blocks and an adjusting screw rod, the positioning blocks are fixedly connected with the upper side of the base, and the connecting line of the two positioning blocks is parallel to the extension direction of the guide rail, the positioning blocks are provided with movable positioning holes with bearings, and the adjusting screw rod is in axial fixed connection with the movable positioning holes; the bottom of the mounting seat is connected with an adjusting block, and the adjusting block has an adjusting hole in thread cooperation with the adjusting screw rod.

[0012] Further, the adjusting assembly further comprises an adjusting wheel disc fixedly connected with the end of the adjusting screw rod.

[0013] Further, the edge position of the adjusting wheel disc is provided with a mounting portion, the mounting portion is hinged with an operating rod, and the operating rod can rotate in the plane passing through the diameter of the adjusting wheel disc.

[0014] Furthermore, the adjusting screw includes an adjusting portion located in the middle and matching portions located at both ends of the adjusting portion. The diameter of the adjusting portion is larger than that of the matching portion, and the matching portions are matched and connected with the movable positioning holes.

[0015] The application of this utility model can achieve the following beneficial effects:

[0016] 1. The utility model indirectly connects the sensor and the steering rod through an adapter. When in use, the first adapter unit and the second adapter unit are fixedly connected to the sensor and the steering rod respectively, and then the relative positions of the first adapter unit and the second adapter unit are adjusted to make the first connecting plate and the second connecting plate close to and fit together. By observing the fitting condition of the first connecting plate and the second connecting plate, it is possible to quickly determine whether they are in the best docking position and quickly make adjustments, which saves preparation time before the abnormal noise test compared with the existing technology.

[0017] 2. The utility model adjusts the position of the mounting seat by setting a guide rail and an adjustment component, which facilitates the fixed connection between the output rod and the steering rod. The adjustment screw can make the adjustment of the mounting seat smoother and also has a limiting function. In some cases, the step of fixing the mounting seat to the base with screws can be omitted, and the operation is more convenient. In a further embodiment, the adjustment screw is also connected to an adjustment wheel for manual operation to better meet the adjustment needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of a linear load mechanism used for steering abnormal noise testing in an embodiment;

[0019] Figure 2 Schematic diagram of the structure of the adapter;

[0020] Figure 3 It is a structural diagram of the adjusting screw rod;

[0021] Figure 4 is a side view of the mounting base;

[0022] In the figure, 1-mounting seat, 11-guide block, 111-limiting clamp, 12-adjusting block, 121-adjusting hole, 2-power source, 3-output rod, 4-sensor, 41-connecting screw hole, 5-adapter, 51-first adapter unit, 511-first connecting plate, 512-first joint, 513-first connecting hole, 52-second adapter unit, 521-second connecting plate, 522-second joint, 523-adapter hole, 524-second connecting hole, 53-fixing part, 6-base, 61-guide rail, 611-limiting slide groove, 7-positioning block, 71-movable positioning hole, 8-adjusting screw rod, 81-adjusting part, 82-matching part, 9-adjusting wheel, 91-mounting part, 92-operating lever. DETAILED DESCRIPTION

[0023] The technical solutions of the utility model will be described clearly and completely in combination with the embodiments below. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor belong to the protection scope of the utility model. Embodiment

[0024] Referring to Figures 1-4 The embodiment provides a linear load mechanism for a steering abnormal sound test, when the steering abnormal sound test is carried out, one linear load mechanism is arranged at each end of a steering gear, and the linear load mechanism is connected with a steering drag link at the end of the steering gear, so as to simulate the load condition of the steering gear in a vehicle.

[0025] The linear load mechanism comprises a mounting seat 1, the upper side of the mounting seat 1 is fixedly connected with a power source 2, the power source is connected with an output rod 3, a sensor 4 is fixed at the end of the output rod, the end of the sensor away from the output rod is provided with a connecting screw hole 41, and the sensor is detachably connected with an adapter 5 through the connecting screw hole;

[0026] The axis of the connecting screw hole 41 is parallel to the axis of the output rod 3, and more preferably, the two axes can be coincided, so as to improve the consistency of force transmission when the linear load is applied;

[0027] The adapter 5 comprises a first adapter unit 51, a second adapter unit 52 and a fixing member 53; the first adapter unit 51 comprises a first connecting plate 511 and a first connector 512 vertically connected to the middle of the first connecting plate, the first connector 512 is provided with an external thread structure which can cooperate with the connecting screw hole 41, six first connecting holes 513 are provided on the first connecting plate, and the six first connecting holes are rotationally symmetrically arranged around the first connector 512; the second adapter unit 52 comprises a second connecting plate 521 and a second connector 522 vertically connected to the middle of the second connecting plate, the middle of the second connector is provided with an adapter hole 523 with an internal thread, the axis of the adapter hole is perpendicular to the second connecting plate, and the adapter hole penetrates the second connector and the second connecting plate, six second connecting holes 524 are provided on the second connecting plate, and the six second connecting holes are rotationally symmetrically arranged around the second connector 522, and the arrangement positions of the first connecting holes and the second connecting holes correspond one by one; the first connecting holes are screw holes, and the second connecting holes are light holes, in the assembled state, the first connector and the second connector of the adapter are directed to opposite sides, the first connecting plate and the second connecting plate are attached and make the first connecting holes and the second connecting holes correspond one by one, the fixing member 53 with an external thread penetrates the first connecting holes and the second connecting holes, and the first connecting plate and the second connecting plate are relatively fixed, the number of the fixing members is usually one-to-one corresponding to the number of the first connecting holes / second connecting holes, in some cases, the number of the fixing members can also be less, but the number of the fixing members should not be less than three, so as to ensure the alignment accuracy of the first adapter unit and the second adapter unit.

[0028] In the embodiment, the first connecting plate and the second connecting plate are disc structures with consistent sizes, in other embodiments, the two can also adopt some other shapes such as square and regular hexagon, in addition, the two can also be different sizes, but in general, the positions and sizes of the first connecting holes and the second connecting holes should correspond.

[0029] The principle of the embodiment is as follows: in the assembly step before the steering response test, first, the steering gear is fixed at a specified position, then a linear load mechanism is arranged at each end of the steering gear, at this time, the adapter of the linear load mechanism is in a separated state, the first adapter unit and the second adapter unit are respectively fixedly connected with the sensor and the steering tie rod, then the mounting seat or the output rod is adjusted to make the first connecting plate and the second connecting plate close to each other and attach, according to the attachment state of the first connecting plate and the second connecting plate, it is easy to judge whether the spatial position is aligned, after the alignment is completed, the first connecting plate and the second connecting plate are fixedly connected through the fixing member, that is, the installation of the linear load mechanism and the steering gear is completed.

[0030] In some other embodiments, the linear load mechanism for the steering abnormal sound test further comprises a base plate 6, the upper side of the base plate 6 is provided with two parallel linear guides 61, the bottom of the mounting base 1 is provided with corresponding guide blocks 11, the guide blocks are in sliding fit with the linear guides to facilitate the position adjustment of the mounting base, in further embodiments, the two sides of the linear guides are provided with limiting sliding grooves 611, the guide blocks are provided with limiting clamps which can be in sliding fit with the limiting sliding grooves, the limiting sliding grooves and the limiting clamps can limit the moving direction of the mounting base after fit.

[0031] In some other embodiments, the linear load mechanism for the steering abnormal sound test further comprises an adjusting assembly, the adjusting assembly comprises two positioning blocks 7 and an adjusting screw 8, the positioning blocks are installed on the upper side of the base plate, the connecting line of the two positioning blocks is parallel with the extending direction of the guides, the positioning blocks are provided with movable positioning holes 71, bearings are arranged in the movable positioning holes, the adjusting screw comprises an adjusting part 81 with threads in the middle and smooth fit parts 82 arranged at both ends of the adjusting part, the fit parts are connected with the movable positioning holes through the bearings, the bottom of the mounting base is provided with corresponding adjusting blocks 12, the adjusting blocks are provided with adjusting holes 121 which are in thread fit with the adjusting screw, the mounting base can slide along the guides by rotating the adjusting screw, in further embodiments, one end of the adjusting screw is further connected with an adjusting wheel disc 9, the rotation of the adjusting screw can be controlled by rotating the adjusting wheel disc 9, in some embodiments, in order to further improve the operability, the edge position of the adjusting wheel disc is provided with a mounting part 91, the mounting part is hinged with an operating rod 92, the operating rod can rotate on the plane passing through the diameter of the adjusting wheel disc to facilitate the force application on the adjusting wheel disc.

[0032] Finally, it should be noted that the above only describes the preferred embodiments of the present application and is not intended to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement for some technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A linear load mechanism for steering noise test, characterized by: The invention comprises a mounting seat (1), a power source (2) fixedly connected to the mounting seat, an output rod (3) connected to the power source, a sensor (4) connected to the end of the output rod, and an adapter (5) detachably connected to the sensor; a connecting screw hole (41) is formed at one end of the sensor away from the output rod; the adapter comprises a first adapter unit (51), a second adapter unit (52) and a fixing member (53); the first adapter unit (51) comprises a first connecting plate (511) and a first joint (512) vertically connected to the middle of the first connecting plate; the first joint (512) is provided with a screw thread that can be screwed into the connecting screw hole (41); The second adapter unit (52) includes a second connecting plate (521) and a second joint (522) connected to the middle of the second connecting plate, and the middle of the second joint forms an adapter hole (523) with an internal thread extending perpendicular to the second connecting plate; the first connecting plate is provided with a first connecting hole (513), and the second connecting plate is provided with a plurality of second connecting holes (524) corresponding to the first connecting hole, and the fixing member (53) can pass through the first connecting hole (513) and the second connecting hole (524) to fix the first connecting plate (511) and the second connecting plate (521) relative to each other.

2. A linear load mechanism for steering noise test according to claim 1, characterized in that: The first connection hole (513) is a screw hole, and the second connection hole (524) is a light hole, or the first connection hole is a light hole, and the connection hole is a screw hole.

3. The linear load mechanism for steering noise test according to claim 1, characterized in that: The first connecting plate (511) is provided with at least three first connecting holes (513), the plurality of first connecting holes being rotationally symmetrically arranged around the first joint, and the second connecting plate (521) is provided with a plurality of second connecting holes (524) corresponding in number and position to the first connecting holes.

4. The linear load mechanism for steering noise test according to claim 1, characterized in that: It also includes a base (6), the upper side of which is provided with a guide rail (61), and the bottom of the mounting seat (1) is provided with a guide block (11) that is slidably connected to the guide rail.

5. The linear load mechanism for steering noise test according to claim 4, characterized in that: Limiting slots (611) are provided on both sides of the guide rail (61), and the guide block (11) is provided with a limiting clamping head (111) that is slidably engaged with the limiting slots.

6. The linear load mechanism for steering noise test according to claim 4, characterized in that: The mounting base (1) further comprises an adjusting assembly, wherein the adjusting assembly comprises two positioning blocks (7) and an adjusting screw (8), wherein the positioning blocks are fixedly connected to the upper side of the base (6) and the connecting line of the two positioning blocks is parallel to the extension direction of the guide rail (61), the positioning blocks are provided with a movable positioning hole (71) with a bearing, and the adjusting screw (8) is matched with the movable positioning hole (71) and is positioned in the axial direction; the bottom of the mounting base (1) is connected to an adjusting block (12), and the adjusting block has an adjusting hole (121) threadedly matched with the adjusting screw (8).

7. The linear load mechanism for steering noise test according to claim 6, characterized in that: The adjustment assembly further comprises an adjustment wheel (9) fixedly connected to the end of the adjustment screw rod.

8. The linear load mechanism for steering noise test according to claim 7, characterized in that: A mounting portion (91) is provided at the edge of the adjusting wheel disc, and the mounting portion is hinged to an operating rod (92), and the operating rod can rotate on a plane passing through the diameter of the adjusting wheel disc.

9. The linear load mechanism for steering noise test according to claim 6, characterized in that: The adjusting screw comprises an adjusting portion (81) located in the middle and matching portions (82) located at both ends of the adjusting portion. The diameter of the adjusting portion is larger than the matching portion, and the matching portion is matched and connected with the movable positioning hole.

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