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CN-122016301-A - Universal gear transmission running-in test device

CN122016301ACN 122016301 ACN122016301 ACN 122016301ACN-122016301-A

Abstract

The invention discloses a universal gear transmission running-in test device, and particularly relates to the technical field of gear transmission tests, comprising a test bed, a positioning frame and a test block, wherein the positioning frame is fixed on the upper surface of the test bed; the test block is arranged above the positioning frame, and a driving protruding shaft is arranged above the test block. According to the invention, the running-in condition between two test gears is comprehensively detected from different points, so that three typical burst working conditions of a driving end, a driven end and a load end are covered in a single test, the test scene is remarkably expanded, the comprehensiveness and accuracy of a gear transmission running-in test are greatly improved, and the method is particularly suitable for the running-in test of a gear transmission part of an electric automobile driving system under the working conditions of high speed and high torque, thereby solving the problems of single test means, poor comprehensiveness and accuracy of the gear transmission running-in test of the whole gear transmission part.

Inventors

  • YIN MINGHU
  • SHI YUXIN
  • ZHANG YANCHAO
  • ZHANG DONGYA
  • DU JINFU
  • ZHOU YU

Assignees

  • 西安理工大学

Dates

Publication Date
20260512
Application Date
20260331

Claims (10)

  1. 1. The universal gear transmission running-in test device comprises a test bed (1) and is characterized in that a positioning frame (2) is fixed on the upper surface of the test bed (1); The test block (3) is arranged above the positioning frame (2), a driving convex shaft (4) is arranged above the test block (3), and a driving blocking test piece is arranged on the test block (3); the driven convex shaft (5) is arranged on one side of the driving convex shaft (4), a chute block (6) is arranged below the driven convex shaft (5), and a driven blocking test piece is arranged on the chute block (6); The load sleeve (7) is fixed on the outer wall of the driven protruding shaft (5), one side of the load sleeve (7) is provided with a stop block (8), and a load blocking test piece is arranged on the stop block (8); the driving unit is arranged on the outer wall of the positioning frame (2); When the driving protruding shaft (4) and the driven protruding shaft (5) rotate, the driving unit drives the driving blocking test piece, so that the driving blocking test piece drives the test piece (3) to be in contact with the driving protruding shaft (4) and performs blocking test; the driving unit drives the driven blocking test piece to enable the driven blocking test piece to drive the chute block (6) to be in contact with the driven protruding shaft (5) and carry out blocking test; The driving unit drives the load blocking test piece to enable the load blocking test piece to drive the stop block (8) to be in contact with the load sleeve (7) and conduct blocking test.
  2. 2. The universal geared break-in test apparatus of claim 1, wherein said drive blocking test piece comprises: the guide block (9) is fixedly connected to the bottom end of the test block (3), one side of the guide block (9) is fixedly provided with a linkage column (10), and the linkage column (10) and the guide block (9) are both in sliding connection with the positioning frame (2); The connecting block (11) is fixed on the top end of the outer wall of the connecting column (10), an elastic strip (12) is fixed on the upper surface of the connecting block (11), the elastic strip (12) is used for providing elasticity for the connecting block (11), a supporting block (13) is arranged on the upper surface of the elastic strip (12), and the positioning frame (2) and the elastic strip (12) are fixedly connected with the supporting block (13).
  3. 3. The universal gear transmission running-in test device according to claim 2, wherein the two elastic strips (12) are symmetrically arranged about the middle of the supporting block (13), and the lower surface of the supporting block (13) is parallel to the upper surface of the linkage block (11).
  4. 4. The universal geared break-in test apparatus of claim 1, wherein said load block test piece comprises: The inclined pressing block (14) is fixedly connected to the top end of the stop block (8), an inclined frame (15) is connected to the outer wall of the inclined pressing block (14), the inclined frame (15) is used for guiding the inclined pressing block (14) to slide, and the bottom end of the inclined frame (15) is fixedly connected with the test bed (1); The sliding rod (16) is fixed on one side of the inclined pressing block (14), the top end of the outer wall of the sliding rod (16) is connected with the pressing bar (17) in a sliding manner, and the pressing bar (17) and the sliding rod (16) are both connected with the inclined frame (15) in a sliding manner; The elastic sheet (36) is fixed at the bottom end of the outer wall of the sliding rod (16), one end part of the elastic sheet (36) is fixedly connected with the inclined frame (15), and the elastic sheet (36) is used for providing elasticity for the sliding rod (16); the device comprises a linkage strip (18), wherein the linkage strip is fixed at the bottom end of a pressing strip (17), a sleeve column (19) is fixedly connected to the bottom end of the linkage strip (18), a supporting rod (20) penetrates through the inner wall of the sleeve column (19), the supporting rod (20) is fixedly connected with a test bed (1), and the supporting rod (20) is used for guiding the sleeve column (19) to slide.
  5. 5. The universal gear transmission running-in test device according to claim 4, wherein the inclined pressing block (14) is obliquely arranged, and a gap is arranged between the stop block (8) and the load sleeve (7).
  6. 6. The universal gear drive running-in test device according to claim 4, wherein the pressing bar (17) and the linkage bar (18) are vertically arranged.
  7. 7. The universal geared break-in test apparatus of claim 1, wherein said driven blocking test piece comprises: The sliding block (21) is fixed at the bottom end of the chute block (6), the outer wall of the sliding block (21) is connected with a chute plate (22) in a sliding manner, the chute plate (22) is fixedly connected with the test bed (1), and the chute plate (22) is used for guiding the chute block (6) to slide; The inclined pushing plate (23) slides at the bottom end of the inclined groove block (6), the inclined pushing plate (23) is obliquely arranged, a moving strip (24) is fixed at the bottom end of the inclined pushing plate (23), and the moving strip (24) is in sliding connection with the inclined groove plate (22); the elastic piece (25) is arranged on one side of the inclined groove plate (22), the inclined groove plate (22) and the moving strip (24) are fixedly connected with the elastic piece (25), and the elastic piece (25) is used for providing elastic force for the moving strip (24).
  8. 8. The universal gear running-in test device according to claim 7, wherein the upper surface cross-sectional area of the chute block (6) is smaller than the lower surface cross-sectional area thereof, and the slider (21) is arranged obliquely.
  9. 9. The universal gear running-in test device according to claim 1, wherein the driving unit comprises; the servo motor (26) is arranged on the outer wall of the positioning frame (2), a steering engine (27) is arranged at the output end of the servo motor (26), a transmission bar (28) is fixed at the output end of the steering engine (27), and the steering engine (27) is used for driving the transmission bar (28) to rotate.
  10. 10. The universal gear transmission running-in test device according to claim 1, wherein one side of the load sleeve (7) is provided with two test gears (29), one test gear (29) is fixedly connected with the driving convex shaft (4), the other test gear (29) is fixedly connected with the driven convex shaft (5), and the two test gears (29) are in meshed transmission connection; the outer wall of one end part of the driving convex shaft (4) is rotationally connected with a shaft sleeve (30), the shaft sleeve (30) is detachably connected with the test bed (1) through bolts, and the shaft sleeve (30) is rotationally connected with the driven convex shaft (5); The driving convex shaft (4) and the driven convex shaft (5) are respectively inserted into the outer parts of the other ends of the driving convex shaft and the driven convex shaft (5), a rotating speed sensor (32) is arranged at one end part of one mounting sleeve (31), a transmission motor (33) is arranged at one end part of the rotating speed sensor (32), the output end of the transmission motor (33) is used for driving the sensing end of the rotating speed sensor (32) to rotate, and the outer walls of the transmission motor (33) and the rotating speed sensor (32) are fixedly connected with the test bench (1); The outer walls of the two mounting sleeves (31) are respectively and rotatably connected with a sleeve joint plate (35), the sleeve joint plates (35) are fixedly connected with the test bed (1), a switch (34) is mounted on one side of the test bed (1), and the transmission motor (33) and the rotating speed sensor (32) are respectively and electrically connected with the switch (34).

Description

Universal gear transmission running-in test device Technical Field The invention relates to the technical field of gear transmission tests, in particular to a universal gear transmission running-in test device. Background With the rapid development of the electric automobile industry, the working speed of a gear transmission part in an electric automobile driving system is high, the torque is large, the working condition is complex, and higher requirements are provided for running-in tests of the gear transmission system. In the prior art, patent publication number CN120702757A discloses a compatible system and a testing method for an AT transmission adapted to an MT test rack, the technical testing method comprises the steps of preprocessing, assembly connection, initialization setting, test operation, monitoring recording and resetting, test including running-in test and fixed gear endurance test, oil pressure data are transmitted in two ways, automatic shutdown is carried out in abnormal conditions, AT transmission test compatibility is realized by modifying an idle MT rack, and the effects of improving resource utilization rate, reducing cost, enhancing test suitability and reliability and the like are remarkable. However, this technique has the following problems. When electric automobile drive test, need carry out the transmission running-in test through general gear, there are drive gear axle position, driven gear axle position and driven gear axle load position, and in the gear drive test process, it blocks the test to be difficult to carry out the fast switch over according to the different transmission positions of gear, look over whether break-in has the damage problem between each gear, lead to the test means at whole gear drive position single, the running-in problem scene that is difficult to the global coverage to appear, the comprehensiveness and the accuracy of gear drive running-in test are relatively poor. Disclosure of Invention In order to overcome the defects in the prior art, the invention provides the technical scheme that the universal gear transmission running-in test device comprises a test bed, wherein a positioning frame is fixed on the upper surface of the test bed; the test block is arranged above the positioning frame, a driving convex shaft is arranged above the test block, and a driving blocking test piece is arranged on the test block; The driven convex shaft is arranged on one side of the driving convex shaft, a chute block is arranged below the driven convex shaft, and a driven blocking test piece is arranged on the chute block; The load sleeve is fixed on the outer wall of the driven convex shaft, one side of the load sleeve is provided with a stop block, and a load blocking test piece is arranged on the stop block; the driving unit is arranged on the outer wall of the positioning frame; When the driving protruding shaft and the driven protruding shaft rotate, the driving unit drives the driving blocking test piece, so that the driving blocking test piece drives the test piece to contact with the driving protruding shaft and perform blocking test; The driving unit drives the driven blocking test piece to enable the driven blocking test piece to drive the chute block to be in contact with the driven convex shaft and carry out blocking test; The driving unit drives the load blocking test piece to enable the load blocking test piece to drive the stop block to be in contact with the load socket and perform blocking test. In a preferred embodiment, the driving blocking test piece includes: the guide block is fixedly connected to the bottom end of the test block, one side of the guide block is fixedly provided with a linkage column, and the linkage column and the guide block are both in sliding connection with the positioning frame; The linkage block is fixed on the top end of the outer wall of the linkage column, an elastic strip is fixed on the upper surface of the linkage block and used for providing elasticity for the linkage block, a supporting block is arranged on the upper surface of the elastic strip, and the positioning frame and the elastic strip are fixedly connected with the supporting block. In a preferred embodiment, the two spring strips are symmetrically arranged about the middle of the supporting block, and the lower surface of the supporting block and the upper surface of the linkage block are arranged in parallel. In a preferred embodiment, the load barrier test piece includes: the inclined pressing block is fixedly connected to the top end of the stop block, the outer wall of the inclined pressing block is connected with an inclined frame, the inclined frame is used for guiding the inclined pressing block to slide, and the bottom end of the inclined frame is fixedly connected with the test bed; The sliding bar is fixed on one side of the inclined pressing block, the top end of the outer wall of the sliding bar is connected with a pressing bar in a sliding