New energy automobile bogie test platform

Abstract

The invention discloses a new energy automobile bogie test platform, which comprises a device bottom plate, an inclined mounting plate, a limiting plate, a limiting mechanism, an auxiliary test mechanism, a driven gear and a rack plate, and is characterized in that the rack plate reciprocates, so that the driven gear rotates back and forth to drive a connecting shaft to rotate back and forth; the test motor is started to drive the rotating shaft to rotate, the rotating shaft rotates to drive the rotating eccentric plate to rotate, the rotating eccentric plate is provided with a balancing weight, the balancing weight eccentrically rotates relative to the rotating shaft, and an elastic assembly is arranged between the mechanism bottom plate and the mechanism top plate. The auxiliary testing mechanism can drive the limiting mechanism and the bogie on the limiting mechanism to vibrate, so that the stress on the bogie can be eliminated, the damage to the connecting part of the bogie in the testing process is prevented, and the vibration of the auxiliary testing mechanism can further simulate the vibration in the automobile driving process. And the accuracy of a test result is further improved.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile testing, and in particular to a bogie testing platform for new energy vehicles. Background Art

[0002] Traditional electric power steering performance test benches generally use direct manual operation, which has low safety and is relatively cumbersome. The test results are often not very accurate. It is very important to conduct repetitive tests on the steering of the car and detect the steering angle of its wheels.

[0003] The Chinese patent with the existing authorization announcement number CN207585934U discloses a steering performance test platform for new energy vehicles, including a base, a steering wheel seat, a laser angle measuring device, a wheel, a suspension beam frame and a steering drive mechanism, two groups of steering wheel seats arranged at intervals are rotatably arranged on the base, the base is provided with a laser angle measuring device, the laser angle measuring device is arranged opposite to the steering wheel seat, the steering wheel seat is provided with wheels, and the two wheels are respectively arranged on both sides of the automobile bogie, the automobile bogie is arranged to be steered by a steering shaft, the driving end of the steering shaft passes through the suspension beam frame and extends upward, and the steering shaft is arranged to be steered by a steering drive mechanism. The utility model provides a steering performance test platform for new energy vehicles, which performs repetitive steering tests on the steering performance of the automobile.

[0004] The shortcomings of the above-mentioned existing technical solutions are that: there is usually stress in the connection parts of the bogie after assembly and processing, and the existing steering performance test platform cannot eliminate the stress in the connection parts of the bogie during the test process, which has the hidden danger of causing damage to the connection parts during the test process. There is still room for improvement in practicality. Summary of the invention

[0005] The purpose of the present invention is to provide a new energy vehicle bogie test platform to solve the technical problem that the steering performance test platform in the prior art cannot eliminate the stress of the bogie connection parts during the test, and there is a hidden danger of damage to the connection parts during the test.

[0006] The technical problem to be solved by the present invention can be achieved by the following technical solutions:

[0007] A new energy vehicle bogie test platform, comprising:

[0008] The limiting mechanism comprises a mechanism support plate, on which the limiting components are symmetrically distributed and arranged, the limiting components comprising a symmetrically arranged wheel hub fixing plate and a cylinder 1 for driving the wheel hub fixing plate to perform reciprocating motion, the wheel hub fixing plate is arranged vertically, and an inclined wheel hub limiting plate is fixedly connected to the wheel hub fixing plate;

[0009] The auxiliary testing mechanism comprises a mechanism bottom plate, a mechanism top plate is arranged above the mechanism bottom plate, elastic components are arranged on both sides of the mechanism bottom plate, the elastic component is arranged between the mechanism bottom plate and the mechanism top plate, one end of the elastic component is fixedly connected to the mechanism bottom plate, and the other end of the elastic component is fixedly connected to the mechanism top plate, a test motor is fixedly connected to an end surface of the mechanism top plate close to the mechanism bottom plate, a rotating shaft is fixedly connected to the driving end of the test motor, a rotating eccentric plate is fixedly connected to the rotating shaft, and a counterweight block is arranged on the rotating eccentric plate;

[0010] A horizontally arranged device base plate has auxiliary test mechanisms symmetrically arranged on the device base plate, a limiting mechanism is arranged above the auxiliary test mechanism, a bogie is arranged on the limiting mechanism, wheel hubs are arranged at both ends of the bogie, a connecting shaft is arranged on the bogie, a driven gear is coaxially fixedly connected to the connecting shaft, a vertically arranged device support plate is fixedly connected to one end of the device base plate, an inclined mounting plate is fixedly connected to the upper end of the device support plate, a rack plate meshing with the driven gear and two cylinders for driving the rack plate to reciprocate are arranged on the inclined mounting plate.

[0011] As a further solution of the present invention: two auxiliary testing mechanisms are provided, and the two auxiliary testing mechanisms are symmetrically arranged on both sides of the upper end surface of the device bottom plate, the mechanism bottom plate is fixedly connected to the device bottom plate, and the mechanism top plate is fixedly connected to the bottom surface of the mechanism support plate.

[0012] As a further solution of the present invention: the limiting assembly also includes a cylinder mounting plate, a cylinder is fixedly mounted on the cylinder mounting plate, a cylinder telescopic rod is fixedly connected to the driving end of the cylinder, the cylinder telescopic rod is fixedly connected to the wheel hub fixing plate, and the inclination angle of the wheel hub limiting plate is degrees.

[0013] As a further solution of the present invention: the elastic component includes a sleeve, a movable rod is movably sleeved on the sleeve, the lower end of the sleeve is fixedly connected to the bottom plate of the mechanism, the upper end of the movable rod is fixedly connected to the top plate of the mechanism, a spring is sleeved on the outer side of the sleeve and the movable rod, the lower end of the spring is fixedly connected to the bottom plate of the mechanism, and the upper end of the spring is fixedly connected to the top plate of the mechanism.

[0014] As a further solution of the present invention: the rotating eccentric plate is in an elongated strip shape as a whole, one end of the rotating eccentric plate is fixedly connected to the rotating shaft, and the counterweight block is arranged at the other end of the rotating eccentric plate.

[0015] As a further solution of the present invention: a screw is fixedly connected to the counterweight, a threaded hole corresponding to the screw is opened on the rotating eccentric plate, and the counterweight is threadedly connected to the threaded hole on the rotating eccentric plate through the screw.

[0016] As a further solution of the present invention: the connecting shaft passes through the end surface of the inclined mounting plate, the limiting plate is fixedly connected to the inclined mounting plate, a long limiting groove is opened along the length direction of the limiting plate, the limiting strip plate is fixedly connected at the notch of the limiting groove, sliding grooves corresponding to the limiting strip plate are opened on both sides of the rack plate, the rack plate is slidably connected to the limiting strip plate through the sliding grooves, and a cylinder mounting plate 2 is fixedly connected to the inclined mounting plate.

[0017] As a further solution of the present invention: the second cylinder is fixedly mounted on the second cylinder mounting plate, the driving end of the second cylinder is fixedly connected with the second cylinder telescopic rod, and the second cylinder telescopic rod is fixedly connected to the rack plate.

[0018] Beneficial effects of the present invention:

[0019] 1. The present invention drives the cylinder telescopic rod 2 to make reciprocating motion through the cylinder 2, and the reciprocating motion of the cylinder telescopic rod 2 can drive the rack plate to make reciprocating motion. Due to the meshing between the driven gear and the rack plate, the driven gear rotates back and forth, and the back and forth rotation of the driven gear can drive the connecting shaft to rotate back and forth, so as to continuously test the steering performance of the bogie. Starting the test motor can drive the rotating shaft to rotate, and the rotation of the rotating shaft can drive the rotating eccentric plate to rotate. A counterweight block is arranged on the rotating eccentric plate, and one end of the rotating eccentric plate is fixedly connected to the rotating shaft. The counterweight block is arranged on the other end of the rotating eccentric plate, so that the counterweight block rotates eccentrically relative to the rotating shaft. An elastic component is arranged between the mechanism bottom plate and the mechanism top plate, so that the auxiliary test mechanism can drive the limiting mechanism and the bogie on the limiting mechanism to vibrate, thereby eliminating the stress on the bogie and preventing the connecting part of the bogie from being damaged during the test. At the same time, the vibration of the auxiliary test mechanism can further simulate the vibration during the driving of the car, which is conducive to further improving the accuracy of the test result.

[0020] 2. The wheel hub fixing plate and the wheel hub limiting plate of the limiting mechanism of the present invention can firmly fix the bogie and the wheel hub, simulate the installation environment of the bogie, and improve the reliability of the test results. The distance between the symmetrically arranged wheel hub fixing plates can be adjusted by a cylinder so that wheel hubs of different sizes can be fixed, thereby improving the applicability of the device. The counterweight block is threadedly connected to the threaded hole on the rotating eccentric plate through a screw rod. When in use, it is convenient to replace counterweight blocks of different weights to change the vibration amplitude of the auxiliary test mechanism, which can meet the test requirements of different types of bogies. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below in conjunction with the accompanying drawings.

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0023] Figure 2 The present invention Figure 1 The enlarged structural diagram at A in the middle;

[0024] Figure 3 It is a schematic diagram of the three-dimensional structure of the limiting mechanism of the present invention;

[0025] Figure 4 The three-dimensional structure diagram of the auxiliary testing mechanism of the present invention is shown in FIG. Figure 1 ;

[0026] Figure 5 The three-dimensional structure diagram of the auxiliary testing mechanism of the present invention is shown in FIG. Figure 2 .

[0027] In the figure: 1. device bottom plate; 2. device support plate; 3. inclined mounting plate; 4. limit plate; 5. bogie; 6. wheel hub; 7. limit mechanism; 71. mechanism support plate; 72. cylinder mounting plate one; 73. cylinder one; 74. cylinder telescopic rod one; 75. wheel hub fixing plate; 76. wheel hub limit plate; 8. auxiliary test mechanism; 81. mechanism bottom plate; 82. sleeve; 83. movable rod; 84. spring; 85. mechanism top plate; 86. test motor; 87. rotating shaft; 88. rotating eccentric plate; 89. counterweight; 9. connecting shaft; 10. driven gear; 11. rack plate; 12. cylinder mounting plate two; 13. cylinder two; 14. cylinder telescopic rod two. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] like Figure 1-Figure 5As shown, a new energy vehicle bogie test platform includes: a device bottom plate 1, a limiting mechanism 7 and an auxiliary test mechanism 8, the limiting mechanism 7 includes a mechanism support plate 71, and the mechanism support plate 71 is symmetrically distributed and provided with limiting components, the limiting component includes a symmetrically arranged wheel hub fixing plate 75 and a cylinder 73 for driving the wheel hub fixing plate 75 to reciprocate, the wheel hub fixing plate 75 is vertically arranged, and an inclined wheel hub limiting plate 76 is fixedly connected to the wheel hub fixing plate 75, the auxiliary test mechanism 8 includes a mechanism bottom plate 81, a mechanism top plate 85 is arranged above the mechanism bottom plate 81, elastic components are arranged on both sides of the mechanism bottom plate 81, the elastic component is arranged between the mechanism bottom plate 81 and the mechanism top plate 85, one end of the elastic component is fixedly connected to the mechanism bottom plate 81, and the other end of the elastic component is fixedly connected to the mechanism top plate 85, and the mechanism top plate 85 is close to A test motor 86 is fixedly connected to one end surface of the mechanism base plate 81, a rotating shaft 87 is fixedly connected to the driving end of the test motor 86, a rotating eccentric plate 88 is fixedly connected to the rotating shaft 87, a counterweight 89 is arranged on the rotating eccentric plate 88, the device base plate 1 is horizontally arranged, an auxiliary test mechanism 8 is symmetrically arranged on the device base plate 1, a limiting mechanism 7 is arranged above the auxiliary test mechanism 8, a bogie 5 is arranged on the limiting mechanism 7, wheel hubs 6 are arranged at both ends of the bogie 5, a connecting shaft 9 is arranged on the bogie 5, a driven gear 10 is coaxially fixedly connected to the connecting shaft 9, a vertically arranged device support plate 2 is fixedly connected to one end of the device base plate 1, an inclined mounting plate 3 is fixedly connected to the upper end of the device support plate 2, a rack plate 11 meshing with the driven gear 10 and a cylinder 13 for driving the rack plate 11 to reciprocate are arranged on the inclined mounting plate 3.

[0030] There are two auxiliary test mechanisms 8 symmetrically arranged on both sides of the upper end surface of the device bottom plate 1 , the mechanism bottom plate 81 is fixedly connected to the device bottom plate 1 , and the mechanism top plate 85 is fixedly connected to the bottom surface of the mechanism support plate 71 .

[0031] The limiting assembly also includes a cylinder mounting plate 72, a cylinder 73 is fixedly mounted on the cylinder mounting plate 72, a cylinder telescopic rod 74 is fixedly connected to the driving end of the cylinder 73, the cylinder telescopic rod 74 is fixedly connected to the hub fixing plate 75, and the inclination angle of the hub limiting plate 76 is 60 degrees.

[0032] The elastic component includes a sleeve 82, on which a movable rod 83 is movably sleeved. The lower end of the sleeve 82 is fixedly connected to the bottom plate 81 of the mechanism, and the upper end of the movable rod 83 is fixedly connected to the top plate 85 of the mechanism. A spring 84 is sleeved on the outer side of the sleeve 82 and the movable rod 83. The lower end of the spring 84 is fixedly connected to the bottom plate 81 of the mechanism, and the upper end of the spring 84 is fixedly connected to the top plate 85 of the mechanism. The rotating eccentric plate 88 is in the shape of a long strip as a whole. One end of the rotating eccentric plate 88 is fixedly connected to the rotating shaft 87. A counterweight 89 is arranged at the other end of the rotating eccentric plate 88. A screw is fixedly connected to the counterweight 89. The rotating eccentric plate 88 is provided with a threaded hole corresponding to the screw. The counterweight 89 is threadedly connected to the threaded hole on the rotating eccentric plate 88 through the screw.

[0033] The connecting shaft 9 is arranged to pass through the end surface of the inclined mounting plate 3, and the inclined mounting plate 3 is fixedly connected to the limiting plate 4. A long limiting groove is opened along the length direction of the limiting plate 4, and a limiting strip plate is fixedly connected at the notch of the limiting groove. Slide grooves corresponding to the limiting strip plate are opened on both sides of the rack plate 11, and the rack plate 11 is slidably connected to the limiting strip plate through the slide grooves. A cylinder mounting plate 12 is fixedly connected to the inclined mounting plate 3, and a cylinder 13 is fixedly installed on the cylinder mounting plate 12. A cylinder telescopic rod 14 is fixedly connected to the driving end of the cylinder 13, and the cylinder telescopic rod 14 is fixedly connected to the rack plate 11.

[0034] In order to facilitate the understanding of the embodiments of this solution by those skilled in the art, the working principle of this solution is briefly described in combination with specific application scenarios:

[0035] When in use, the cylinder 2 13 drives the cylinder telescopic rod 2 14 to make reciprocating motion, and the reciprocating motion of the cylinder telescopic rod 2 14 can drive the rack plate 11 to make reciprocating motion. Since the driven gear 10 is meshed with the rack plate 11, the driven gear 10 rotates back and forth, and the back and forth rotation of the driven gear 10 can drive the connecting shaft 9 to rotate back and forth, so that the steering performance of the bogie 5 can be continuously tested. Starting the test motor 86 can drive the rotating shaft 87 to rotate, and the rotation of the rotating shaft 87 can drive the rotating eccentric plate 88 to rotate. A counterweight block 89 is arranged on the rotating eccentric plate 88, and one end of the rotating eccentric plate 88 is fixedly connected to the rotating shaft 87, and the counterweight block 89 is arranged at the other end of the rotating eccentric plate 88, so that the counterweight block 89 rotates eccentrically relative to the rotating shaft 87. An elastic component is arranged between the mechanism bottom plate 81 and the mechanism top plate 85, so that the auxiliary test mechanism 8 can drive the limit mechanism 7 and the limit mechanism The bogie 5 on the auxiliary test mechanism 7 is vibrated, thereby eliminating the stress on the bogie 5 and preventing the connection parts of the bogie 5 from being damaged during the test. At the same time, the vibration of the auxiliary test mechanism 8 can further simulate the vibration during the driving of the car, which is beneficial to further improve the accuracy of the test results. The hub fixing plate 75 and the hub limiting plate 76 of the limiting mechanism 7 can firmly fix the bogie 5 and the hub 6, simulate the installation environment of the bogie 5, and improve the reliability of the test results. The distance between the symmetrically arranged hub fixing plates 75 can be adjusted by the cylinder 1 73, so that hubs of different sizes can be fixed, thereby improving the applicability of the device. The counterweight block 89 is threadedly connected to the threaded hole on the rotating eccentric plate 88 through a screw rod. When in use, it is convenient to replace counterweight blocks 89 of different weights to change the vibration amplitude of the auxiliary test mechanism 8, which can meet the test requirements of different types of bogies.

[0036] Several embodiments of the present invention are described in detail above, but the embodiments of the present invention are not limited thereto and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A new energy vehicle bogie test platform, characterized in that: include: The limiting mechanism (7) comprises a mechanism support plate (71), on which the limiting components are symmetrically distributed and arranged, the limiting components comprising a symmetrically arranged wheel hub fixing plate (75) and a cylinder (73) for driving the wheel hub fixing plate (75) to perform reciprocating motion, the wheel hub fixing plate (75) being arranged vertically, and a wheel hub limiting plate (76) being arranged obliquely is fixedly connected to the wheel hub fixing plate (75); The auxiliary testing mechanism (8) comprises a mechanism bottom plate (81), a mechanism top plate (85) is arranged above the mechanism bottom plate (81), elastic components are arranged on both sides of the mechanism bottom plate (81), the elastic components are arranged between the mechanism bottom plate (81) and the mechanism top plate (85), one end of the elastic component is fixedly connected to the mechanism bottom plate (81), and the other end of the elastic component is fixedly connected to the mechanism top plate (85), a test motor (86) is fixedly connected to an end surface of the mechanism top plate (85) close to the mechanism bottom plate (81), a rotating shaft (87) is fixedly connected to the driving end of the test motor (86), a rotating eccentric plate (88) is fixedly connected to the rotating shaft (87), and a counterweight (89) is arranged on the rotating eccentric plate (88); A device bottom plate (1) is arranged horizontally, an auxiliary test mechanism (8) is symmetrically arranged on the device bottom plate (1), a limit mechanism (7) is arranged above the auxiliary test mechanism (8), a bogie (5) is arranged on the limit mechanism (7), wheel hubs (6) are arranged at both ends of the bogie (5), a connecting shaft (9) is arranged on the bogie (5), a driven gear (10) is coaxially fixedly connected to the connecting shaft (9), a vertically arranged device support plate (2) is fixedly connected to one end of the device bottom plate (1), an inclined installation plate (3) is fixedly connected to the upper end of the device support plate (2), and a rack plate (11) meshing with the driven gear (10) and a second cylinder (13) for driving the rack plate (11) to perform reciprocating motion are arranged on the inclined installation plate (3).

2. A new energy vehicle bogie test platform according to claim 1, characterized in that: Two auxiliary test mechanisms (8) are provided, and the two auxiliary test mechanisms (8) are symmetrically arranged on both sides of the upper end surface of the device bottom plate (1); the mechanism bottom plate (81) is fixedly connected to the device bottom plate (1), and the mechanism top plate (85) is fixedly connected to the bottom surface of the mechanism support plate (71).

3. A new energy vehicle bogie test platform according to claim 1, characterized in that: The limiting assembly also includes a cylinder mounting plate (72), a cylinder (73) fixedly mounted on the cylinder mounting plate (72), a cylinder telescopic rod (74) fixedly connected to the driving end of the cylinder (73), the cylinder telescopic rod (74) fixedly connected to the wheel hub fixing plate (75), and the inclination angle of the wheel hub limiting plate (76) is (60) degrees.

4. A new energy vehicle bogie test platform according to claim 1, characterized in that: The elastic component comprises a sleeve (82), a movable rod (83) is movably sleeved on the sleeve (82), the lower end of the sleeve (82) is fixedly connected to the mechanism bottom plate (81), the upper end of the movable rod (83) is fixedly connected to the mechanism top plate (85), and a spring (84) is sleeved on the outer side of the sleeve (82) and the movable rod (83), the lower end of the spring (84) is fixedly connected to the mechanism bottom plate (81), and the upper end of the spring (84) is fixedly connected to the mechanism top plate (85).

5. A new energy vehicle bogie test platform according to claim 1, characterized in that: The rotating eccentric plate (88) is in the shape of an elongated strip as a whole. One end of the rotating eccentric plate (88) is fixedly connected to the rotating shaft (87), and the counterweight (89) is arranged at the other end of the rotating eccentric plate (88).

6. A new energy vehicle bogie test platform according to claim 1, characterized in that: A screw rod is fixedly connected to the counterweight block (89), a threaded hole corresponding to the screw rod is provided on the rotating eccentric plate (88), and the counterweight block (89) is threadedly connected to the threaded hole on the rotating eccentric plate (88) through the screw rod.

7. A new energy vehicle bogie test platform according to claim 1, characterized in that: The connecting shaft (9) is arranged to penetrate the end surface of the inclined mounting plate (3); a limiting plate (4) is fixedly connected to the inclined mounting plate (3); a long limiting groove is provided along the length direction of the limiting plate (4); a limiting strip plate is fixedly connected to the notch of the limiting groove; sliding grooves corresponding to the limiting strip plate are provided on both sides of the rack plate (11); the rack plate (11) is slidably connected to the limiting strip plate through the sliding grooves; and a second cylinder mounting plate (12) is fixedly connected to the inclined mounting plate (3).

8. A new energy vehicle bogie test platform according to claim 8, characterized in that: The second cylinder (13) is fixedly mounted on the second cylinder mounting plate (12), and the driving end of the second cylinder (13) is fixedly connected with the second cylinder telescopic rod (14), and the second cylinder telescopic rod (14) is fixedly connected to the rack plate (11).

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