Gearbox idler shaft sealing performance detection device

Abstract

The utility model relates to the technical field of gearbox accessory detection, and discloses a gearbox idler shaft sealing performance detection device comprising a vertical seat, the middle part of the vertical seat is provided with a rectangular hole, the outer wall of the vertical seat is fixedly connected with a stepping motor, and the driving end of the stepping motor is fixedly connected with a pair of transmission gears. The transmission gears on the two sides are rotationally connected to the upper portions of the outer walls of the two sides of the vertical base correspondingly, transmission toothed plates are slidably connected to the two sides of the outer wall of the vertical base correspondingly, the transmission toothed plates on the two sides are engaged with the transmission gears on the two sides correspondingly, and a hollow frame is fixedly connected to the middles of the transmission toothed plates on the two sides. Through the adjusting mechanism for arranging the idler shaft of the gearbox in the horizontal direction and the vertical direction, the position of the idler shaft can be conveniently changed, so that the idler shaft can flexibly move in the detection water tank, whether bubbles are generated in the water tank or not is observed along with the movement of the idler shaft, and whether the sealing performance of the idler shaft is good or not is judged. And the detection of the sealing performance is more convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to gearbox accessory detection technical field, concretely is a kind of detection equipment for the sealing property of gearbox idler shaft. BACKGROUND

[0002] Gearbox idler shaft refers to an important component in the gearbox of a vehicle for transmitting power and achieving different gear ratio combinations. The idler shaft is usually composed of a series of gears that can be connected to different gear ratios through synchronizers or other mechanical devices, thereby achieving the gear shifting function of the gearbox.

[0003] To detect the sealing property of the gearbox idler shaft, a special pressure testing equipment is usually required to test the sealing property of the gearbox. By increasing the internal pressure and observing whether there is gas or liquid leakage to judge the sealing performance, the gearbox is partially immersed in water, and whether bubbles come out is observed to help determine whether the sealing is perfect. However, during the actual detection operation, the position memory placement state of the gearbox idler shaft needs to be adjusted constantly, and due to the different accuracy of manual operation, the subsequent detection structure will also be affected.

[0004] Therefore, a detection equipment for the sealing property of the gearbox idler shaft is proposed. SUMMARY

[0005] The utility model aims at providing a detection equipment for the sealing property of the gearbox idler shaft to solve the problems raised in the background.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a detection equipment for the sealing property of the gearbox idler shaft, comprising a stand, a rectangular hole is formed in the middle of the stand, a stepping motor is fixedly connected to the outer wall of the stand, a pair of transmission gears are fixedly connected to the driving end of the stepping motor, the transmission gears on both sides are respectively rotatably connected to the outer wall above the stand on both sides, transmission tooth plates are slidably connected to the outer wall of the stand on both sides, the transmission tooth plates on both sides are respectively connected in meshing between the transmission gears on both sides, hollow frames are fixedly connected to the middle of the transmission tooth plates on both sides, ball rods are fixedly connected to the two sides away from the transmission tooth plates of the hollow frames, hemispherical groove columns are fixedly connected to the two sides away from the transmission gears of the outer wall of the stand, the outer walls of the ball rods on both sides are respectively slidably connected to the inner walls of the hemispherical groove columns on both sides, a double-shaft electric telescopic rod is fixedly connected inside the hollow frame, T-shaped plates are fixedly connected to the driving ends of the double-shaft electric telescopic rod on both sides, the outer walls of the T-shaped plates on both sides are slidably connected to the inner wall of the hollow frame, semicircular arc blocks are rotatably connected to the upper and lower sides of the T-shaped plates on both sides, a pair of pin rods are slidably connected to the middle of the semicircular arc blocks on both sides.

[0007] Preferably, the bottom ends of the pins on both sides are fixedly connected with abutment pads, and the outer walls of the pins on both sides are fitted with compensating springs.

[0008] Preferably, one end of the compensating spring is fixedly connected to the semi-circular block, and the other end of the compensating spring is fixedly connected to the abutment pad.

[0009] Preferably, uprights are fixedly connected to the center of both sides of the rectangular hole, and the inner wall of the hollow frame is slidably connected to the outer wall of the uprights on both sides.

[0010] Preferably, buffer springs are fitted on the outer walls of both uprights.

[0011] Preferably, one end of the buffer spring is fixedly connected to the hollow frame, and the other end of the buffer spring is fixedly connected to the stand.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. By setting up a fixed and adjustable mechanism on the idler shaft of the gearbox, which can be adjusted in both horizontal and vertical directions, the position of the idler shaft can be easily changed, which facilitates subsequent sealing tests. The idler shaft can move flexibly in the test tank, and the presence of air bubbles in the tank can be observed as the idler shaft moves to determine whether the seal of the idler shaft is good. This makes the sealing test more convenient. The position of the idler shaft can be flexibly adjusted as needed for better testing and maintenance. The convenient position adjustment mechanism can help to quickly identify problems and repair them, thereby reducing maintenance costs and minimizing downtime losses caused by long repair cycles.

[0014] 2. By setting a buffer compensation mechanism in the middle of the hollow frame, protection can be provided during the vertical adjustment of the hollow frame, preventing excessive speed from affecting the subsequent detection accuracy. At the same time, it can protect the idler wheel shaft in the middle of the T-shaped plates on both sides from damage. Improving maintenance efficiency, reducing maintenance costs, and increasing flexibility will bring a better user experience and reduce the inconvenience caused by maintenance. Attached Figure Description

[0015] Fig. 1 This is a three-dimensional schematic diagram of the overall device of this utility model;

[0016] Fig. 2 This is a side view of the overall device of this utility model;

[0017] Fig. 3 This is a vertical cross-sectional view of the hollow frame of this utility model;

[0018] Fig. 4This is a top view of the overall device of this utility model.

[0019] In the picture:

[0020] 1. Stand; 2. Rectangular hole; 3. Stepper motor; 4. Transmission gear; 5. Transmission toothed plate; 6. Hollow frame; 7. Dual-axis electric telescopic rod; 8. T-shaped plate; 9. Semicircular block; 10. Pin; 11. Abutment pad; 12. Compensating spring; 13. Hemispherical groove column; 14. Ball rod; 15. Stand; 16. Buffer spring. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figs. 1 to 4 This invention provides an embodiment of a device for testing the sealing performance of a gearbox idler shaft, comprising a base 1 with a rectangular hole 2 in the center. A stepper motor 3 is fixedly connected to the outer wall of the base 1, and a pair of transmission gears 4 are fixedly connected to the drive end of the stepper motor 3. The two transmission gears 4 are rotatably connected to the upper sides of the outer walls of the base 1, and transmission gear plates 5 are slidably connected to both sides of the outer wall of the base 1. The two transmission gear plates 5 are respectively meshed with the two transmission gears 4. A hollow frame 6 is fixedly connected to the middle of the moving gear plate 5. Ball rods 14 are fixedly connected to both sides of the hollow frame 6 away from the transmission gear plate 5. Hemispherical groove columns 13 are fixedly connected to both sides of the outer wall of the stand 1 away from the transmission gear 4. The outer walls of the ball rods 14 on both sides are slidably connected to the inner walls of the hemispherical groove columns 13 on both sides. A dual-axis electric telescopic rod 7 is fixedly connected inside the hollow frame 6. T-shaped plates 8 are fixedly connected to both drive ends of the dual-axis electric telescopic rod 7. The outer walls of the T-shaped plates 8 on both sides are slidably connected to the inner walls of the hollow frame 6.

[0023] Among them: the width of the hemispherical groove column 13 matches that of the cue stick 14;

[0024] Better: The stand 1 is installed next to the water tank of the idler shaft of the gearbox to be tested. By starting the stepper motor 3, the stepper motor 3 drives the transmission gears 4 on both sides to rotate, which in turn causes the transmission gear plates 5 on both sides to move vertically, driving the hollow frame 6 to move up and down on the inner wall of the rectangular hole 2, adjusting the height of the idler shafts to be tested on both sides. As the hollow frame 6 moves, the ball rods 14 on both sides can also move synchronously. With the cooperation of the hemispherical groove columns 13 on both sides, the vertical adjustment of the hollow frame 6 can be made more stable. At the same time, the drive ends of the dual-axis electric telescopic rod 7 on both sides drive the T-shaped plates 8 on both sides to move inside the hollow frame 6, adjusting the idler shafts held on both sides in the horizontal direction.

[0025] Both sides of the T-shaped plates 8 are rotatably connected to semi-circular blocks 9. Both sides of the semi-circular blocks 9 are slidably connected to a pair of pins 10. Both sides of the pins 10 are fixedly connected to the bottom end of abutment pads 11. Both sides of the pins 10 are fitted with compensating springs 12. One end of the compensating spring 12 is fixedly connected to the semi-circular blocks 9, and the other end of the compensating spring 12 is fixedly connected to the abutment pads 11. Both sides of the rectangular hole 2 are fixedly connected to uprights 15. The inner wall of the hollow frame 6 is slidably connected to the outer wall of the uprights 15. Both sides of the uprights 15 are fitted with buffer springs 16. One end of the buffer spring 16 is fixedly connected to the hollow frame 6, and the other end of the buffer spring 16 is fixedly connected to the base 1.

[0026] Among them, the material of the abutment pad 11 is soft rubber;

[0027] Even better: Rotating the upper semicircular blocks 9 on both sides allows the idler shaft to be placed inside the lower semicircular blocks 9 on both sides. When rotating and resetting the semicircular blocks 9 on both sides, the idler shafts, being of different sizes, can deform by pressing the compensating springs 12 through the abutting pads 11 connected to them, causing the pins 10 on both sides to slide, ensuring that the idler shafts can be firmly fixed. As the hollow frame 6 drives the idler shafts on both sides to move vertically, they can be guided along the outer wall of the uprights 15 on both sides, and with the cooperation of the buffer springs 16 on both sides, the neutrality is dispersed, making it more stable.

[0028] The working principle of the above implementation is as follows:

[0029] The operation steps are as follows:

[0030] First, the stand 1 is installed next to the water tank of the idler shaft of the gearbox to be tested. The stepper motor 3 is started, driving the transmission gears 4 on both sides to rotate. This causes the meshing transmission gear plates 5 on both sides to move vertically, moving the hollow frame 6 up and down within the rectangular hole 2 to adjust the height of the idler shafts being tested. As the hollow frame 6 moves, the ball rods 14 on both sides also move synchronously. With the cooperation of the hemispherical groove columns 13 on both sides, the vertical adjustment of the hollow frame 6 becomes more stable. Simultaneously, the drive ends of the dual-axis electric telescopic rod 7 move the T-shaped plates 8 on both sides inside the hollow frame 6, adjusting the idler shafts held on both sides horizontally. The upper semicircular blocks 9 on both sides are rotated to place the idler shafts inside the lower semicircular blocks 9 on both sides. Rotating the semicircular blocks 9 back to their original positions adjusts the idler shafts. Different sizes allow the connecting pads 11 to compress and deform the compensating springs 12, causing the pins 10 on both sides to slide, ensuring the idler shaft is firmly fixed. As the hollow frame 6 drives the idler shafts on both sides to move vertically, they can be guided along the outer wall of the uprights 15 on both sides. With the cooperation of the buffer springs 16 on both sides, the neutrality is dispersed, making it more stable. The idler shaft can move flexibly in the test tank. As the idler shaft moves, it is observed whether air bubbles are generated in the tank to determine whether the idler shaft is well sealed, making the sealing test more convenient. The position of the idler shaft can be flexibly adjusted as needed for better testing and maintenance. The convenient position adjustment mechanism can help to quickly find problems and repair them, thereby reducing maintenance costs and minimizing downtime losses caused by long maintenance cycles.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A testing device for the sealing performance of a gearbox idler shaft, characterized in that: The system includes a base (1), with a rectangular hole (2) in the middle. A stepper motor (3) is fixedly connected to the outer wall of the base (1). A pair of transmission gears (4) are fixedly connected to the drive end of the stepper motor (3). The transmission gears (4) on both sides are rotatably connected to the upper sides of the outer wall of the base (1). Transmission gear plates (5) are slidably connected to both sides of the outer wall of the base (1). The transmission gear plates (5) on both sides are meshed with the transmission gears (4) on both sides. A hollow frame (6) is fixedly connected to the middle of the transmission gear plates (5). A ball rod is fixedly connected to both sides of the hollow frame (6) away from the transmission gear plates (5). (14) The outer wall of the stand (1) is fixedly connected to the two sides away from the transmission gear (4) with hemispherical groove columns (13). The outer walls of the two ball rods (14) are slidably connected to the inner walls of the two hemispherical groove columns (13). The hollow frame (6) is fixedly connected to the inside with a double-axis electric telescopic rod (7). The two driving ends of the double-axis electric telescopic rod (7) are fixedly connected to T-shaped plates (8). The outer walls of the two T-shaped plates (8) are slidably connected to the inner walls of the hollow frame (6). The upper and lower sides of the two T-shaped plates (8) are rotatably connected to semi-circular arc blocks (9). The middle of the two semi-circular arc blocks (9) is slidably connected to a pair of pins (10).

2. The testing device for the sealing performance of a gearbox idler shaft according to claim 1, characterized in that: The bottom ends of the pins (10) on both sides are fixedly connected with abutment pads (11), and the outer walls of the pins (10) on both sides are fitted with compensating springs (12).

3. The testing device for the sealing performance of a gearbox idler shaft according to claim 2, characterized in that: One end of the compensation spring (12) is fixedly connected to the semi-circular block (9), and the other end of the compensation spring (12) is fixedly connected to the abutment pad (11).

4. The testing device for the sealing performance of a gearbox idler shaft according to claim 3, characterized in that: The rectangular hole (2) is fixedly connected to the middle of both sides of the uprights (15), and the inner wall of the hollow frame (6) is slidably connected to the outer wall of the uprights (15) on both sides.

5. The testing device for the sealing performance of a gearbox idler shaft according to claim 4, characterized in that: Both sides of the uprights (15) are fitted with buffer springs (16) on their outer walls.

6. The testing device for the sealing performance of a gearbox idler shaft according to claim 5, characterized in that: One end of the buffer spring (16) is fixedly connected to the hollow frame (6), and the other end of the buffer spring (16) is fixedly connected to the stand (1).

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