CN215573763U

CN215573763U - Automobile hub bearing impact test device

Info

Publication number: CN215573763U
Application number: CN202120504247.2U
Authority: CN
Inventors: 雷开印; 赵兴新; 王婧
Original assignee: Chongqing Changjiang Bearing Co Ltd
Current assignee: Chongqing Changjiang Bearing Co Ltd
Priority date: 2021-03-09
Filing date: 2021-03-09
Publication date: 2022-01-18
Anticipated expiration: 2031-03-09

Abstract

The utility model discloses an automobile hub bearing impact test device which comprises a base, wherein two servo transmission mechanisms are arranged on the base, a cross beam is arranged between the two servo transmission mechanisms, and weights are connected to the cross beam through a lifting ring; the base is provided with a first fixing seat and a second fixing seat, the upper end of the first fixing seat is connected with the impact bottom plate, the upper end of the second fixing seat is connected with a first pressure sensor, one end of the first pressure sensor is hinged with the impact bottom plate, the impact bottom plate is obliquely arranged, and an outer ring flange is arranged on the upper end face of the impact bottom plate; the lower one side position department of its position is fixed with the tripod near on the up end of assaulting the bottom plate, and loading screw rod is worn to be equipped with in this tripod activity, and loading screw rod passes through second pressure sensor and is connected with assaulting the upper plate, and the plane that assaults the upper plate place parallels with assaulting the bottom plate place plane, and the inner circle flange is established to the position that corresponds the outer lane flange on assaulting the lower terminal surface of upper plate, and the weight moves the in-process down along with the crossbeam and can assault this impact upper plate.

Description

Automobile hub bearing impact test device

Technical Field

The utility model relates to the technical field of bearing impact tests, in particular to an automobile hub bearing impact test device.

Background

The conventional impact test device commonly used in the bearing industry at present is based on the principle of GB/T15704 plus 2012 impact test method for light alloy wheels of road vehicles, the impact height of the impact on the edge of a tire is 230mm, and the impact weight is (Wx0.6+180) kg.

Disclosure of Invention

Aiming at the technical problems in the prior art, the utility model provides an automobile hub bearing impact test device to solve the problems in the prior art.

In order to achieve the above purpose, the utility model provides the following technical scheme:

an automobile hub bearing impact test device comprises a base, wherein two servo transmission mechanisms are arranged on the base, a cross beam is movably arranged between the two servo transmission mechanisms along the vertical direction, and weights are connected to the cross beam through a hanging ring;

the base is provided with a first fixing seat and a second fixing seat, the height of the second fixing seat is higher than that of the first fixing seat, the upper end of the first fixing seat is connected with an impact bottom plate, the upper end of the second fixing seat is connected with a first pressure sensor, one end of the first pressure sensor is hinged with the impact bottom plate, the other end of the first pressure sensor is hinged with the second fixing seat, the impact bottom plate is obliquely arranged, an outer ring flange is arranged on the upper end face of the impact bottom plate, and an outer ring of a bearing is connected to the outer ring flange;

the lower side position department of its position is fixed with the tripod near on the up end of impact bottom plate, and loading screw rod is worn to be equipped with in this tripod activity, and the axial lead of this loading screw rod with impact bottom plate place plane parallel, loading screw rod passes through second pressure sensor and strikes the upper plate and be connected, second pressure sensor's one end with loading screw rod is articulated, its other end with strike the upper plate articulated, should strike the upper plate place plane with impact bottom plate place plane parallel, strike on the lower terminal surface of upper plate correspond the position of outer lane flange establishes the inner circle flange, the inner circle of bearing is connected on this inner circle flange, the weight along with the crossbeam moves the in-process down and can strike this and strike the upper plate.

According to the technical scheme, the condition that the automobile impacts the road edge stone at a high speed when running can be simulated, the loading screw is adopted to apply radial force to the bearing, the loading of the center of the wheel is simulated, the radial loading data is displayed through the second pressure sensor, and the force can be controlled; the weight is hoisted by adopting the servo transmission mechanism, axial impact load is added to the bearing, axial loading data are displayed through the first pressure sensor, the falling speed is controllable, the loading of the impact curbstone caused by the running of a simulated automobile is realized, the first pressure sensor and the second pressure sensor can also be connected with a computer in the use process, the bearing loading data are displayed through the computer, the impact instantaneous load value is collected through the high-frequency data collection card, the evaluation is carried out through the collected impact force and the calculated value, the dynamic impact load condition of the bearing can be reflected more visually, and the bearing stress analysis and the subsequent optimization design are facilitated to provide guidance data. The device is novel in design, simulates the actual impact working condition of the automobile, is safe and reliable to use, and achieves the effect of expected design.

Preferably, the impact upper plate is connected with the second pressure sensor through a transition plate, a plane of the transition plate is perpendicular to a plane of the impact upper plate, a connection position of the transition plate and the impact upper plate is close to the upper end position of the transition plate, and a connection position of the transition plate and the second pressure sensor is close to the lower end position of the transition plate.

Preferably, a proximity switch is arranged on at least one servo transmission mechanism and electrically connected with the servo transmission mechanism, and when the weight impacts the impact upper plate in the descending process, the beam contacts the proximity switch.

So set up, adopt rings control weight to strike data in the twinkling of an eye effectively, and only on the weight of weight dashes to the bearing, on the crossbeam effort on the servo drive mechanism can not add the bearing, design proximity switch, when the crossbeam contacts this proximity switch after the adjustment is strikeed, servo drive mechanism brakes immediately.

Preferably, a damping device is arranged on the impact upper plate at a position opposite to the weight.

So set up, adopt special damping material simulation tire pressure, simulate its shock attenuation.

Preferably, the angle of inclination of the impingement bottom plate is from 13 ° to 17 °.

Preferably, pull rods are arranged on the first fixing seat and the second fixing seat and close to the lower ends of the first fixing seat and the second fixing seat, and two ends of each pull rod are connected with the first fixing seat and the second fixing seat through positioning pins respectively.

Preferably, an installation bottom plate is arranged on the upper end face of the base, and the lower ends of the first fixing seat and the second fixing seat are fixed on the installation bottom plate.

Compared with the prior art, the utility model has the beneficial effects that: the utility model has novel design, simulates the radial and axial stress conditions of the bearing under the actual impact working condition of an automobile, is safe and reliable to use, achieves the effect of expected design and test, can realize generalization, has simple integral structure, lower cost and simple and convenient test operation process, can reflect the dynamic impact load condition of the bearing according to the actual condition, and is convenient to carry out stress analysis on the bearing and provide guidance data for subsequent optimization design.

Description of the drawings:

FIG. 1 is a schematic structural diagram of the present invention.

Detailed Description

The present invention will be described in further detail with reference to test examples and specific embodiments. It should be understood that the scope of the above-described subject matter is not limited to the following examples, and any techniques implemented based on the disclosure of the present invention are within the scope of the present invention.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.

In the description of the present invention, unless otherwise specified and limited, it is to be noted that the terms "mounted," "connected," and "connected" are to be interpreted broadly, and may be, for example, a mechanical connection or an electrical connection, a communication between two elements, a direct connection, or an indirect connection via an intermediate medium, and specific meanings of the terms may be understood by those skilled in the art according to specific situations.

The automobile hub bearing impact test device shown in the attached drawing 1 comprises a base 1, wherein two servo transmission mechanisms 2 are arranged on the base 1, a cross beam 9 is movably arranged between the two servo transmission mechanisms 2 along the vertical direction, and the lower end of the cross beam 9 is connected with a weight 92 through a lifting ring 91.

Establish mounting plate 10 on the up end of base 1, this mounting plate 10 is located the region between two servo drive mechanism 2, be equipped with first fixing base 31 and second fixing base 32 on mounting plate 10, the height that highly is higher than first fixing base 31 of second fixing base 32, the upper end and the impact bottom plate 5 of first fixing base 31 are connected, the upper end of second fixing base 32 is connected with first pressure sensor 4, this first pressure sensor 4's one end is articulated with impact bottom plate 5 through the ball hank, its other end passes through the ball hank and is articulated with second fixing base 32, can make impact bottom plate 5 slope setting like this, impact bottom plate 5's inclination is 13 ~ 17, the condition when the car speed was strikeed the curbstone when having simulated. An outer ring receiving plate 51 is connected to an upper end surface of the impact base plate 5, and an outer ring of the bearing 8 is connected to the outer ring receiving plate 51.

In order to improve the overall stability, a pull rod 33 is arranged on the first fixed seat 31 and the second fixed seat 32 near the lower ends thereof, and two ends of the pull rod 33 are respectively connected with the first fixed seat 31 and the second fixed seat 32 through positioning pins.

A tripod 52 is fixed on the upper end surface of the impact bottom plate 5 near the lower side of the impact bottom plate, a loading screw 53 is movably arranged on the tripod 52 in a penetrating mode, the axis of the loading screw 53 is parallel to the plane of the impact bottom plate 5, a handle is arranged on the loading screw 53 to facilitate force application, the loading screw 53 is connected with the impact upper plate 7 through a second pressure sensor 6, the plane of the impact upper plate 7 is parallel to the plane of the impact bottom plate 5, specifically, the impact upper plate 7 is connected with the second pressure sensor 6 through a transition plate, the plane of the transition plate is vertical to the plane of the impact upper plate 7, the connection position of the transition plate and the impact upper plate 7 is close to the upper end position, and the connection position of the transition plate and the second pressure sensor 6 is close to the lower end position. One end of the second pressure sensor 6 is hinged with the loading screw 53 through a ball hinge, and the other end is hinged with the transition plate through a ball hinge. An inner ring receiving plate 71 is provided on the lower end surface of the impact upper plate 7 at a position corresponding to the outer ring receiving plate 51, and the inner ring of the bearing 8 is connected to the inner ring receiving plate 71.

The weight 92 can impact the impact upper plate 7 in the process of moving down along with the beam 9, and the damping device 72 is arranged at the impact position on the impact upper plate 7. The special damping material is adopted to simulate the tire pressure of the tire and simulate the shock absorption of the tire.

A proximity switch 21 is arranged on at least one servo transmission mechanism 2, the proximity switch 21 is electrically connected with the servo transmission mechanism 2, and when the weight 92 impacts the impact upper plate 7 in the descending process, the beam 9 can contact the proximity switch 21.

Meanwhile, the device also comprises a control cabinet and a computer, wherein the control cabinet is electrically connected with the computer, and the first pressure sensor 4 and the second pressure sensor 6 are respectively electrically connected with the control cabinet, so that the device is simpler to operate and realizes one-key operation of the computer. The bearing loaded data are displayed by a computer, the impact instantaneous load value is collected by a high-frequency data collection card, the dynamic impact load condition of the bearing can be reflected more visually by evaluating the collected impact force and the calculated value, and guidance data are provided for bearing stress analysis and subsequent optimization design.

The utility model designs the hub bearing impact test device according to the actual tire stress structure, and simulates the radial load borne by a hub shaft and the axial impact load borne by the edge of a tire; the situation when the speed impacts the road edge stone when the automobile runs is simulated. The loading screw rod is adopted to apply radial force to the bearing, the center loading of the wheel is simulated, the force is loaded and controlled through the handle, the weight is hoisted by adopting the servo transmission mechanism, the falling speed is controllable, and the running impact speed of the automobile is simulated.

The foregoing describes preferred embodiments of the present invention. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.

Claims

1. The utility model provides an automobile wheel hub bearing impact test device which characterized in that: the device comprises a base (1), wherein two servo transmission mechanisms (2) are arranged on the base (1), a cross beam (9) is movably arranged between the two servo transmission mechanisms (2) along the vertical direction, and a weight (92) is connected to the cross beam (9) through a lifting ring (91);

a first fixing seat (31) and a second fixing seat (32) are arranged on the base (1), the height of the second fixing seat (32) is higher than that of the first fixing seat (31), the upper end of the first fixing seat (31) is connected with an impact bottom plate (5), the upper end of the second fixing seat (32) is connected with a first pressure sensor (4), one end of the first pressure sensor (4) is hinged with the impact bottom plate (5), the other end of the first pressure sensor is hinged with the second fixing seat (32), the impact bottom plate (5) is obliquely arranged, an outer ring flange (51) is arranged on the upper end face of the impact bottom plate (5), and the outer ring of a bearing (8) is connected to the outer ring flange (51);

a tripod (52) is fixed on the upper end surface of the impact bottom plate (5) near the lower side of the impact bottom plate, a loading screw rod (53) is movably arranged on the tripod (52) in a penetrating way, the axial lead of the loading screw rod (53) is parallel to the plane of the impact bottom plate (5), the loading screw rod (53) is connected with the impact upper plate (7) through a second pressure sensor (6), one end of the second pressure sensor (6) is hinged with the loading screw rod (53), the other end of the shock absorber is hinged with the shock upper plate (7), the plane of the shock upper plate (7) is parallel to the plane of the shock bottom plate (5), an inner ring flange (71) is arranged on the lower end surface of the impact upper plate (7) corresponding to the outer ring flange (51), the inner ring of the bearing (8) is connected on the inner ring flange (71), the weight (92) can impact the impact upper plate (7) in the process of moving down along with the cross beam (9).

2. The automobile hub bearing impact test device of claim 1, characterized in that: the impact upper plate (7) is connected with the second pressure sensor (6) through a transition plate, the plane of the transition plate is perpendicular to the plane of the impact upper plate (7), the connection position of the transition plate and the impact upper plate (7) is close to the upper end of the transition plate, and the connection position of the transition plate and the second pressure sensor (6) is close to the lower end of the transition plate.

3. The automobile hub bearing impact test device of claim 1, characterized in that: and a proximity switch (21) is arranged on at least one servo transmission mechanism (2), the proximity switch (21) is electrically connected with the servo transmission mechanism (2), and when the weight (92) impacts the impact upper plate (7) in the descending process, the beam (9) contacts the proximity switch (21).

4. The automobile hub bearing impact test device of claim 3, characterized in that: and a damping device (72) is arranged on the impact upper plate (7) at the position opposite to the weight (92).

5. The automobile hub bearing impact test device according to any one of claims 1 to 4, characterized in that: the inclination angle of the impact bottom plate (5) is 13-17 degrees.

6. The automobile hub bearing impact test device of claim 1, characterized in that: and pull rods (33) are arranged on the first fixing seat (31) and the second fixing seat (32) and close to the lower ends of the first fixing seat and the second fixing seat, and two ends of each pull rod (33) are connected with the first fixing seat (31) and the second fixing seat (32) through positioning pins respectively.

7. The automobile hub bearing impact test device of claim 6, characterized in that: an installation bottom plate (10) is arranged on the upper end face of the base (1), and the lower ends of the first fixing seat (31) and the second fixing seat (32) are fixed on the installation bottom plate (10).