Fatigue resistance testing device for automobile parts

Abstract

The utility model discloses an automobile part fatigue resistance testing device, which comprises a working table and a water bucket, the upper end of the working table is fixedly connected with a testing plate, the upper end of the working table is provided with a water outlet groove, the water bucket is arranged below the water outlet groove, the side wall of the testing plate is rotatably connected with three tooth-missing gears, and the three tooth-missing gears are arranged in the water outlet groove. And the tooth-missing gear is fixedly connected with a supporting rotating rod. The rain wiper testing device is reasonable in structure, and the semi-gear, the inner rack plate, the L-shaped rod, the plug barrel and other components are utilized to simulate the working state of the rain wiper in rainy days. The half gear drives the inner rack plate to move, so that the L-shaped rod drives the piston to reciprocate in the piston barrel, the water absorption and spraying functions are realized, and the test plate is simulated to be sprayed by rainwater. Meanwhile, the fixing rod drives the rack to move, so that the tooth-missing gear rotates, the windscreen wiper is driven to simulate the windscreen wiping action on the testing plate, and the moist environment is reproduced. The process not only simulates the rainwater lubrication effect, but also provides data close to reality for testing the performance and durability of the windscreen wiper, and is beneficial to product optimization.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile parts, especially to a fatigue-resistant testing device for automobile parts. BACKGROUND

[0002] With the increasing demand for automobile automation, intelligence and reliable operation in extreme environments, the performance and reliability of key components of the automobile are particularly important. As an important component to ensure the safe driving of the automobile, the experimental test of the service life, performance and wear of the wiper has important significance for the performance and reliability improvement in actual use. At the same time, these tests also provide key data support for the continuous improvement of the wiper, so as to better meet the complex and diverse use requirements.

[0003] After searching, a kind of automobile wiper arm's endurance life testing device with patent number "CN215004251U", including test platform, window glass, horizontal installation plate, a set of support group, a set of swing bar, a set of wiper, a set of support pivot and wiper reciprocating drive device, the window glass, horizontal installation plate and wiper reciprocating drive device are all set on the upper table surface of test platform, and window glass is located in the side of horizontal installation plate, a set of support group is fixed in a line and set on horizontal installation plate, a set of support group, a set of swing bar, a set of wiper and a set of support pivot are set one by one, but wiper is directly rubbed on the surface of window glass, without introducing water spraying device, cannot reproduce the wet and slippery state in rainy day working environment, leading to the deviation between test result and actual use condition. Under dry friction condition, test is carried out, and the wear of wiper and glass is intensified, so that the service life evaluation result is too conservative or does not conform to actual working condition. Accordingly, the present application provides a kind of automobile parts fatigue-resistant testing device. UTILITARIAN CONTENT

[0004] The utility model aims at solving the shortcomings in the prior art and provides a fatigue-resistant testing device for automobile parts.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] The utility model relates to an automobile parts fatigue resistance testing device, including work table and water bucket, the work table upper end fixedly connected with test board, the work table upper end is opened has the water groove, the water bucket places in the lower of water groove, test board lateral wall rotationally connected with three toothless gear, toothless gear is fixedly connected with the support rotation rod on, the support rotation rod upper end fixedly connected with the wiper, the work table upper end slidingly connected with the internal gear rack plate, the work table upper end rotationally connected with half gear, half gear and internal gear rack plate are engaged, internal gear rack plate upper end fixedly connected with fixed link, the fixed link is fixedly connected with the rack away from the guide plate one end, the rack and toothless gear are engaged, the guide mechanism for guiding internal gear rack plate is installed to the work table, the work table lower end fixedly connected with the water guide plate, the water spraying mechanism for spraying is installed to the work table upper end.

[0007] Preferably, the work table lower end fixedly connected with motor board, motor board lateral wall threadedly connected with three -phase motor, three -phase motor's output shaft and half gear fixed connection.

[0008] Preferably, the guide mechanism includes a guide plate and an L-shaped slide plate, the guide plate is fixedly installed on the upper end of the work table, the guide plate lateral wall is provided with a sliding groove, one end of the L-shaped slide plate is fixedly installed on the upper end of the internal gear rack plate, the other end of the L-shaped slide plate slides in the sliding groove.

[0009] Preferably, the water spraying mechanism includes a water outlet pipe, three spray heads, a plug barrel, a water inlet pipe and a piston, the plug barrel is fixedly installed on the upper end of the work table, the piston is sealingly slidably installed in the plug barrel, one end of the water outlet pipe is communicatively installed on the side wall of the plug barrel, the other end of the water outlet pipe is fixedly installed on the side wall of the test board, each of the spray heads is communicatively installed on the water outlet pipe, one end of the water inlet pipe is communicatively installed on the side wall of the plug barrel, the other end of the water inlet pipe is communicatively connected with the water bucket, and a moving mechanism for moving the piston is installed on the fixed link.

[0010] Preferably, the moving mechanism includes an L-shaped rod, one end of the L-shaped rod is fixedly installed on the fixed link, and the other end of the L-shaped rod is fixedly installed on the upper end of the piston.

[0011] Preferably, one-way valves are installed in the water outlet pipe and the water inlet pipe.

[0012] Preferably, the work table lower end fixedly connected with four fixed column.

[0013] The utility model has the following beneficial effects:

[0014] 1、through the wiper, support the rotating rod, missing tooth gear, rack, fixed rod, L-shaped rod, inner rack plate and plug-in cylinder and other parts, the rotation of half gear makes the inner rack plate reciprocating movement on the upper end of the workbench, and then the inner rack plate drives the L-shaped rod reciprocating movement through the fixed rod, so that the piston reciprocating movement in the plug-in cylinder, so as to achieve the water in the bucket into the plug-in cylinder, through the water outlet pipe by the nozzle to the surface of the test plate, at the same time, the fixed rod also drives the rack reciprocating movement, so that the missing tooth gear reciprocating rotation, through the support rotating rod drives the wiper to rotate on the surface of the test plate, so as to achieve the simulation of the rain wiper working scene, which can reproduce the wet environment of rainy day, and provide more close to actual conditions for the performance and durability test of wiper. At the same time, since the lubrication effect of rainwater can be simulated, the wiper performance and wear condition tested by the device are closer to the actual use condition, which provides more valuable data support for product improvement.

[0015] 2、the water on the surface of the test plate slides down, and returns to the bucket along the water guide plate through the water outlet groove, which can realize the recycling of water resources on the one hand, reduce the water consumption in the test process, and has environmental protection and economy; on the other hand, the accumulation of stains caused by water recycling can effectively simulate the actual working condition of the car in the complex environment of rainy day, such as muddy, dust and other mixed rainwater conditions, so that the test is closer to the real use scene. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 a structural schematic diagram of the automobile part fatigue resistance testing device is provided for the utility model;

[0017] Figure 2 a structural schematic diagram of the workbench, test plate, motor plate and three-phase motor is provided for the utility model;

[0018] Figure 3 a top view structural schematic diagram of the workbench is provided for the utility model;

[0019] Figure 4 a connecting structure schematic diagram of the plug-in cylinder and piston is provided for the utility model;

[0020] Figure 5 is Figure 3 the local structure enlarged schematic diagram of A in the middle.

[0021] In the figure: 1 workbench, 2 test plate, 3 wiper, 4 support rotating rod, 5 water outlet groove, 6 fixed rod, 7 guide plate, 8 water outlet pipe, 9 nozzle, 10 plug-in cylinder, 11 L-shaped rod, 12 inner rack plate, 13 fixed column, 14 water guide plate, 15 water inlet pipe, 16 motor plate, 17 three-phase motor, 18 half gear, 19 piston, 20 sliding groove, 21 L-shaped slide plate, 22 missing tooth gear, 23 rack, 24 water bucket. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0023] With reference to Figures 1-5 A kind of automobile parts fatigue resistance testing device, including workbench 1 and bucket 24, workbench 1 upper end is fixedly connected with test plate 2, water outlet groove 5 is set in the upper end of workbench 1, bucket 24 is placed in the lower of water outlet groove 5, test plate 2 side wall is rotatably connected with three toothless gear 22, toothless gear 22 is fixedly connected with support rotating rod 4, support rotating rod 4 upper end is fixedly connected with wiper 3, workbench 1 upper end is slidably connected with internal gear rack plate 12, workbench 1 upper end is rotatably connected with half gear 18, half gear 18 is engaged with internal gear rack plate 12, it needs to be explained, half gear 18 only has half of tooth, and internal gear rack plate 12 is relative to two inner sides and has tooth, to make half gear 18 and one side tooth engagement, by the rotation of half gear 18, internal gear rack plate 12 can be moved, and when half gear 18 is rotated to engage with the tooth of other side, then make internal gear rack plate 12 reverse movement, such reciprocating, with the ceaseless rotation of half gear 18, to reach the effect that internal gear rack plate 12 reciprocates on workbench 1.

[0024] Fixed rod 6 is fixedly connected with rack 23 at the end away from guide plate 7, rack 23 is engaged with toothless gear 22, further, toothless gear 22 only has half of tooth, rack 23 is engaged with toothless gear 22, and the reciprocating movement of rack 23 drives toothless gear 22 to rotate alternately, to make wiper 3 swing on the surface of test plate 2, to reach the purpose of testing the fatigue resistance of wiper 3.

[0025] Guide mechanism for guiding internal gear rack plate 12 is installed on workbench 1, and the guide mechanism includes guide plate 7 and L-shaped slide plate 21, the guide plate 7 is fixedly installed on the upper end of the workbench 1, the guide plate 7 is provided with a sliding groove 20 on the side wall, and the L-shaped slide plate 21 is fixedly installed on the upper end of the internal gear rack plate 12, and the other end of the L-shaped slide plate 21 slides in the sliding groove 20. It needs to be explained that the side wall of the sliding groove 20 limits the L-shaped slide plate 21, to reach the effect of limiting the internal gear rack plate 12, so that the internal gear rack plate 12 can move along the preset trajectory, and the piston 19 moves in the plug barrel 10, and the inner wall of the plug barrel 10 also limits the piston 19, so that the L-shaped rod 11 and the fixed rod 6 also limit the internal gear rack plate 12, to prevent the internal gear rack plate 12 from deviating when moving.

[0026] The lower end of the workbench 1 is fixedly connected with a water guide plate 14, and the upper end of the workbench 1 is provided with a water spraying mechanism for spraying water. The water spraying mechanism comprises a water outlet pipe 8, three spray heads 9, a plug-in cylinder 10, a water inlet pipe 15 and a piston 19. The plug-in cylinder 10 is fixedly installed at the upper end of the workbench 1, the piston 19 is sealingly slid in the plug-in cylinder 10, one end of the water outlet pipe 8 is communicatedly installed on the side wall of the plug-in cylinder 10, the other end of the water outlet pipe 8 is fixedly installed on the side wall of the test plate 2, each spray head 9 is communicatedly installed on the water outlet pipe 8, one end of the water inlet pipe 15 is communicatedly installed on the side wall of the plug-in cylinder 10, and the other end of the water inlet pipe 15 is communicatedly connected with a water bucket 24.

[0027] A moving mechanism for moving the piston 19 is installed on the fixed rod 6. The moving mechanism comprises an L-shaped rod 11, one end of the L-shaped rod 11 is fixedly installed on the fixed rod 6, and the other end of the L-shaped rod 11 is fixedly installed on the upper end of the piston 19.

[0028] A one-way valve is installed in the water outlet pipe 8 and the water inlet pipe 15. It should be noted that the one-way valve in the water outlet pipe 8 and the water inlet pipe 15 functions as follows: when the piston 19 in the plug-in cylinder 10 moves outward, the one-way valve in the water inlet pipe 15 is opened, the one-way valve in the water outlet pipe 8 is closed, and then the water in the water bucket 24 is sucked into the plug-in cylinder 10 for temporary storage through the water inlet pipe 15, while the water in the plug-in cylinder 10 cannot be discharged through the water outlet pipe 8; when the piston 19 moves to the inner bottom end of the plug-in cylinder 10, the one-way valve in the water outlet pipe 8 is opened, the one-way valve in the water inlet pipe 15 is closed, so that the temporarily stored water in the plug-in cylinder 10 is discharged to the surface of the test plate 2 through the spray head 9 through the water outlet pipe 8, while the water in the water bucket 24 cannot enter the plug-in cylinder 10 through the water inlet pipe 15.

[0029] The lower end of the workbench 1 is fixedly connected with a motor plate 16, the side wall of the motor plate 16 is screw-connected with a three-phase motor 17, the output shaft of the three-phase motor 17 is fixedly connected with a half gear 18, and the lower end of the workbench 1 is fixedly connected with four fixed columns 13.

[0030] In the utility model, the three-phase motor 17 is started to rotate, the three-phase motor 17 drives the half gear 18 to rotate, the half gear 18 is alternately meshed with the teeth on the inner side of the inner rack plate 12, so that when the half gear 18 is meshed with the teeth on one side, the rotation of the half gear 18 causes the inner rack plate 12 to move, and when the half gear 18 is meshed with the teeth on the other side, the inner rack plate 12 moves reversely, so that the inner rack plate 12 reciprocatingly moves on the workbench 1, the inner rack plate 12 drives the rack 23 to reciprocatingly move through the fixed rod 6, since the rack 23 is meshed with the missing tooth gear 22, the missing tooth gear 22 is alternately rotated in the positive direction and the reverse direction, so that the rotation of the missing tooth gear 22 drives the wiper 3 to swing on the surface of the test plate 2 through the support rotating rod 4.

[0031] Meanwhile, the fixed rod 6 drives the L-shaped rod 11 to reciprocate, and the L-shaped rod 11 drives the piston 19 to reciprocate in the plug barrel 10, when the piston 19 moves to the outer end of the plug barrel 10, under the action of the one-way valve in the water inlet pipe 15, the water in the water bucket 24 can only enter the plug barrel 10 through the water inlet pipe 15, when the piston 19 moves to the inner bottom end of the plug barrel 10, under the action of the one-way valve in the water outlet pipe 8, the water in the plug barrel 10 can only be discharged through the water outlet pipe 8, and then discharged to the surface of the test plate 2 through the spray head 9, so that the wiper 3 can swing and have water flow.

[0032] The above is only the preferred specific implementation of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A fatigue resistance testing device for automotive parts, comprising a workbench (1) and a water bucket (24), characterized in that, A test plate (2) is fixedly connected to the upper end of the workbench (1). A water outlet trough (5) is opened on the upper end of the workbench (1). The water bucket (24) is placed below the water outlet trough (5). Three toothed gears (22) are rotatably connected to the side wall of the test plate (2). A support rotating rod (4) is fixedly connected to the toothed gears (22). A wiper (3) is fixedly connected to the upper end of the support rotating rod (4). An internal rack plate (12) is slidably connected to the upper end of the workbench (1). A half-tooth rack plate is rotatably connected to the upper end of the workbench (1). Gear (18), the half gear (18) meshes with the inner rack plate (12), the upper end of the inner rack plate (12) is fixedly connected to a fixing rod (6), the end of the fixing rod (6) away from the guide plate (7) is fixedly connected to a rack (23), the rack (23) meshes with a toothed gear (22), a guide mechanism for guiding the inner rack plate (12) is installed on the workbench (1), a water guide plate (14) is fixedly connected to the lower end of the workbench (1), and a water spraying mechanism for spraying water is installed on the upper end of the workbench (1).

2. The fatigue resistance testing device for automotive parts according to claim 1, characterized in that, The lower end of the workbench (1) is fixedly connected to a motor plate (16), and a three-phase motor (17) is threadedly connected to the side wall of the motor plate (16). The output shaft of the three-phase motor (17) is fixedly connected to a half gear (18).

3. The fatigue resistance testing device for automotive parts according to claim 1, characterized in that, The guiding mechanism includes a guide plate (7) and an L-shaped slide plate (21). The guide plate (7) is fixedly installed on the upper end of the workbench (1). The guide plate (7) has a slide groove (20) on its side wall. One end of the L-shaped slide plate (21) is fixedly installed on the upper end of the inner rack plate (12). The other end of the L-shaped slide plate (21) slides in the slide groove (20).

4. The fatigue resistance testing device for automotive parts according to claim 1, characterized in that, The water spraying mechanism includes a water outlet pipe (8), three nozzles (9), a stopper cylinder (10), a water inlet pipe (15), and a piston (19). The stopper cylinder (10) is fixedly installed on the upper end of the workbench (1). The piston (19) is sealed and slides inside the stopper cylinder (10). One end of the water outlet pipe (8) is connected to the side wall of the stopper cylinder (10), and the other end of the water outlet pipe (8) is fixedly installed on the side wall of the test plate (2). Each nozzle (9) is connected to the water outlet pipe (8). One end of the water inlet pipe (15) is connected to the side wall of the stopper cylinder (10), and the other end of the water inlet pipe (15) is connected to the water bucket (24). A moving mechanism for moving the piston (19) is installed on the fixed rod (6).

5. The fatigue resistance testing device for automotive parts according to claim 4, characterized in that, The moving mechanism includes an L-shaped rod (11), one end of which is fixedly mounted on a fixed rod (6), and the other end of which is fixedly mounted on the upper end of a piston (19).

6. The fatigue resistance testing device for automotive parts according to claim 4, characterized in that, One-way valves are installed in the outlet pipe (8) and inlet pipe (15).

7. The fatigue resistance testing device for automotive parts according to claim 1, characterized in that, The lower end of the workbench (1) is fixedly connected to four fixed columns (13).

Images