A test device suitable for the suspension system of new energy vehicles

Abstract

The present invention relates to the field of automobile suspension system testing, and in particular to a testing device suitable for new energy automobile suspension systems, comprising a base, a support platform fixedly connected to the base, a fixing seat slidably connected to the support platform, the fixing seat can be fixed on the support platform by bolts and nuts, two limit frames fixedly connected to the base, limit plates slidably connected in the two limit frames, vibration tables fixedly connected to the upper ends of the two limit plates, a feed pipe and a return pipe fixedly connected in the two vibration tables, two transmission shafts rotatably connected to the base, crankshafts fixedly connected to the two transmission shafts, push-pull rods rotatably connected to the two crankshafts, and two limit plates rotatably connected to the two push-pull rods. The testing device of the present invention can simulate the performance of an automobile suspension system under muddy and sandy road conditions.

Description

Technical Field

[0001] The present invention relates to the field of automobile suspension system testing, and in particular to a testing device suitable for a new energy automobile suspension system. Background Art

[0002] The suspension system refers to a connecting structural system between the vehicle body, frame and wheels, and this structural system includes shock absorbers, suspension springs, anti-roll bars, suspension subbeams, lower control arms, longitudinal rods, steering knuckle arms, rubber bushings and connecting rods. With the rapid development of new energy vehicles, more and more new energy vehicle manufacturers have begun to launch off-road models equipped with electric drive systems. The chassis tuning of these off-road models is the most critical, and the suspension system determines the off-road performance of the car. The suspension system needs to be tested for fatigue resistance, high temperature resistance and corrosion resistance before leaving the factory, but the test equipment in the existing technology lacks the function of simulating muddy and sandy road conditions. Summary of the invention

[0003] In view of this, the technical problem to be solved by the present invention is to provide a testing device suitable for the suspension system of new energy vehicles. The testing device of the present invention can simulate the performance of the automobile suspension system under muddy and sandy road conditions.

[0004] A testing device suitable for a suspension system of a new energy vehicle comprises a base, a support platform is fixedly connected to the base, a fixing seat is slidably connected to the support platform, the fixing seat can be fixed on the support platform by bolts and nuts, two limit frames are fixedly connected to the base, limit plates are slidably connected in the two limit frames, vibration tables are fixedly connected to the upper ends of the two limit plates, and a feed pipe and a return pipe are fixedly connected in the two vibration tables.

[0005] The base is rotatably connected to two transmission shafts, the two transmission shafts are fixedly connected to crankshafts, the two crankshafts are rotatably connected to push-pull rods, and the two limit plates are rotatably connected to the two push-pull rods respectively.

[0006] The two transmission shafts are both slidably connected with sleeves, which can be fixed on the transmission shafts by bolts, one of the sleeves is provided with a plurality of positioning grooves, and the other sleeve is provided with a plurality of positioning blocks.

[0007] A double-shaft motor is fixedly connected to the base, and one of the transmission shafts is fixedly connected to an output shaft at one end of the double-shaft motor.

[0008] A handle is fixedly connected to the other transmission shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0010] Figure 1 and Figure 2 The overall structure diagram of a test device suitable for the suspension system of new energy vehicles;

[0011] Figure 3 is a structural schematic diagram of the support platform;

[0012] Figure 4 It is the structural schematic diagram of the vibration table;

[0013] Figure 5 It is the structural diagram of the resistance ring;

[0014] Figure 6 It is a structural schematic diagram of the limit frame;

[0015] Figure 7 is a schematic diagram of the structure of the impeller;

[0016] Figure 8 It is a schematic diagram of the structure of the crankshaft;

[0017] Fig. 9 It is a structural diagram of the positioning block;

[0018] Fig.10 It is a structural schematic diagram of the positioning groove. DETAILED DESCRIPTION

[0019] The present invention is described in detail with reference to the accompanying drawings in the embodiments of the present invention.

[0020] See also Figure 1-6 A testing device suitable for a suspension system of a new energy vehicle comprises a base 101, a support platform 601 is fixedly connected to the base 101 by bolts, a fixing seat 602 is slidably connected to the support platform 601, and the fixing seat 602 can be fixed to the support platform 601 by bolts and nuts. Two limit frames 102 are fixedly connected to the base 101 by bolts, and limit plates 206 are slidably connected in the two limit frames 102. The upper ends of the two limit plates 206 are fixedly connected to a vibration table 401, and a feed pipe 402 and a return pipe 403 are welded and fixedly connected in the two vibration tables 401.

[0021] When using the test device, first place the frame of the suspension system on the support platform 601 so that the two wheels and the corresponding shock-absorbing components are respectively located on the two vibration tables 401, then slide the fixing seat 602 downward to clamp the frame, and finally fix the frame to the support platform 601 and the fixing seat 602 by bolts.

[0022] At this time, the two limit plates 206 are controlled to slide back and forth in the two limit frames 102 respectively, thereby driving the two vibration tables 401 to vibrate, so that the fatigue resistance of the entire suspension system can be tested. When testing the suspension system, mud and sand are sprayed upward through the two feeding pipes 402, so that the mud and sand are directly sprayed on the shock-absorbing components of the suspension system. Then, as the shock-absorbing components continue to vibrate, the adhered mud and sand can fall into the vibration table 401 for collection, and finally discharged through the return pipe 403. Through this operation, the performance of the automobile suspension system under muddy and sandy road conditions can be simulated, so as to test the wear resistance of the automobile suspension.

[0023] The continuously ejected mud and sand come into contact with the shock-absorbing components of the suspension system and then fall off, which is similar to the actual situation where mud and sand adhere to a car when it passes through muddy and sandy roads, making it easier to obtain accurate test results.

[0024] See also Figure 6 and 8 Two transmission shafts 201 are rotatably connected to the base 101 through bearings, and crankshafts 208 are fixedly connected to the two transmission shafts 201 through bolts. Push-pull rods 205 are rotatably connected to the two crankshafts 208 through bearings, and two limit plates 206 are rotatably connected to the two push-pull rods 205 through bearings.

[0025] By controlling the rotation of the two transmission shafts 201, the two crankshafts 208 can be driven to rotate about the axis of the transmission shaft 201. When the two crankshafts 208 rotate, they respectively drive the two push-pull rods 205 to produce a push-pull action, and then drive the two limit plates 206 to produce reciprocating sliding in the limit frame 102, thereby realizing the function of fatigue resistance test of the automobile suspension system.

[0026] See also Figure 6 and 8 The two transmission shafts 201 are both slidably connected with sleeves 202 , which can be fixed on the transmission shafts 201 by bolts. One of the sleeves 202 is provided with a plurality of positioning grooves 204 , and the other sleeve 202 is integrally formed with a plurality of positioning blocks 203 .

[0027] By inserting two or more positioning blocks 203 into the multiple positioning grooves 204 respectively, the two sleeves 202 are fixed, and then the two transmission shafts 201 are fixedly connected. The two transmission shafts 201 rotate synchronously, and the two sides of the automobile suspension system are tested synchronously. At this time, the two crankshafts 208 are in a synchronous state, and the two vibration tables 401 generate synchronous vibrations.

[0028] By rotating a transmission shaft 201 half a circle and then fixing the two sleeves 202, the function of adjusting the directions of the two crankshafts 208 is achieved, so that the two crankshafts 208 are staggered with each other. When the automobile suspension system is tested, the two vibration tables 401 generate staggered vibrations, thereby achieving the function of simulating different road conditions.

[0029] When a single-side test of the automobile suspension system is required, the two sleeves 202 are separated to disconnect the two transmission shafts 201 , and then the single-side transmission shaft 201 is driven.

[0030] See also Figure 6 A dual-axis motor 301 is fixedly connected to the base 101 by bolts, and one of the transmission shafts 201 is fixedly connected to an output shaft at one end of the dual-axis motor 301 by a coupling.

[0031] By driving one of the transmission shafts 201 to rotate through the dual-axis motor 301, the function of testing the automobile suspension system can be realized.

[0032] See also Figure 6 A handle 207 is fixedly connected to the other transmission shaft 201 by bolts. When the two sleeves 202 are separated, the transmission shaft 201 can be driven to rotate half a circle by manually rotating the handle 207, thereby facilitating manual adjustment of the directions of the two crankshafts 208.

[0033] See also Figure 6-7 A circulation box 302 is fixedly connected to the base 101 by bolts, an impeller 303 is rotatably connected to the circulation box 302 through a bearing, the impeller 303 is fixedly connected to the output shaft at the other end of the dual-axis motor 301 through a coupling, and a suction pipe 304 and a discharge pipe 305 are welded and fixedly connected to the circulation box 302.

[0034] The extraction pipe 304 is connected to the return pipe 403 through a hose, and the discharge pipe 305 is connected to the feed pipe 402 through a hose. When the dual-axis motor 301 drives the transmission shaft 201 to rotate, it can also drive the impeller 303 to rotate, so that negative pressure is generated in the circulation box 302. The mud and sand in the vibration table 401 are extracted through the extraction pipe 304, and then discharged to the feed pipe 402 for spraying through the discharge pipe 305, thereby realizing the function of mud and sand circulation spraying, thereby simulating muddy road conditions while saving resources.

[0035] See also Figure 4-5 A resistance ring 501 is slidably connected inside the two vibration tables 401, and two resistance rods 504 are fixedly connected to the resistance ring 501 by bolts.

[0036] The resistance ring 501 can slide on its own axis in the vibration table 401. When the resistance ring 501 slides out in one direction, it drives the resistance rod 504 on the same side to move toward the middle, while the other resistance rod 504 contracts downward, thereby realizing the function of applying forward or backward resistance to the car tire, so that the shock-absorbing component of the car is always under stress. At this time, the vibration table 401 is vibrated again, thereby simulating the fatigue resistance performance of the shock-absorbing component under resistance, thereby further enriching the test items for the suspension system.

[0037] See also Figure 5 The two resistance rings 501 are both provided with a slide groove 502 , and the lower ends of the two vibration tables 401 are both connected to the cylinder 503 through an axis rotation. The moving end of the cylinder 503 is provided with a slide rod, which is slidably connected in the slide groove 502 .

[0038] When it is necessary to control the resistance ring 501 to slide, the moving end of the cylinder 503 is controlled to extend or retract, and the resistance ring 501 is pushed and pulled by the moving end of the cylinder 503, thereby driving the resistance ring 501 to slide in the vibration table 401.

[0039] See also Figure 4 The resistance rod 504 is covered with a rubber layer on the outside, and the rubber layer can increase the friction between the resistance rod 504 and the car tire, thereby preventing the resistance rod 504 from being separated from the car tire.

[0040] See also Figure 4 The sealing gasket can enhance the sealing between the resistance ring 501 and the vibration table 401 to prevent water from seeping through the vibration table 401.

Claims

1. A test device suitable for the suspension system of new energy vehicles, characterized in that: The invention comprises a base (101), a support platform (601) is fixedly connected to the base (101), a fixed seat (602) is slidably connected to the support platform (601), and the fixed seat (602) can be fixed to the support platform (601) by bolts and nuts. Two limit frames (102) are fixedly connected to the base (101), and limit plates (206) are slidably connected in the two limit frames (102). The upper ends of the two limit plates (206) are fixedly connected to a vibration table (401), and a feed pipe (402) and a return pipe (403) are fixedly connected in the two vibration tables (401); a circulation box (302) is fixedly connected to the base (101), An impeller (303) is rotatably connected in the circulation box (302), and the impeller (303) is fixedly connected to the output shaft at the other end of the dual-axis motor (301). A suction pipe (304) and a discharge pipe (305) are fixedly connected to the circulation box (302); resistance rings (501) are slidably connected in the two vibration tables (401), and two resistance rods (504) are fixedly connected to the resistance rings (501); a slide groove (502) is provided on the two resistance rings (501), and the lower ends of the two vibration tables (401) are rotatably connected to a cylinder (503), and a sliding rod is provided at the movable end of the cylinder (503), and the sliding rod is slidably connected in the slide groove (502).

2. A test device for a suspension system of a new energy vehicle according to claim 1, characterized in that: The base (101) is rotatably connected to two transmission shafts (201), the two transmission shafts (201) are fixedly connected to crankshafts (208), the two crankshafts (208) are rotatably connected to push-pull rods (205), and the two limit plates (206) are rotatably connected to the two push-pull rods (205), respectively.

3. A test device for a suspension system of a new energy vehicle according to claim 2, characterized in that: The two transmission shafts (201) are both slidably connected with sleeves (202), and the sleeves (202) can be fixed on the transmission shafts (201) by bolts, one of the sleeves (202) is provided with a plurality of positioning grooves (204), and the other sleeve (202) is provided with a plurality of positioning blocks (203).

4. A test device for a suspension system of a new energy vehicle according to claim 3, characterized in that: A dual-axis motor (301) is fixedly connected to the base (101), and one of the transmission shafts (201) is fixedly connected to an output shaft at one end of the dual-axis motor (301).

5. A test device for a suspension system of a new energy vehicle according to claim 4, characterized in that: A handle (207) is fixedly connected to the other transmission shaft (201).

6. A test device for a suspension system of a new energy vehicle according to claim 5, characterized in that: The resistance rods (504) are all covered with a rubber layer on the outside.

7. A test device for a suspension system of a new energy vehicle according to claim 6, characterized in that: A sealing gasket is provided at the sliding connection between the resistance ring (501) and the vibration table (401).

Images