Air spring airbag assembly machine
By designing an air spring airbag assembly machine, which utilizes a motor-driven threaded rod and a limiting bracket, the problem of difficult airbag installation in the confined space of a bus chassis was solved, enabling safe and convenient airbag installation and improving the service life and safety of the device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-16
- Publication Date
- 2026-03-10
AI Technical Summary
In the confined space of a bus chassis, the disassembly and installation of air springs are difficult, especially the air spring ports are hard to align, and there is a high risk involved.
An air spring airbag assembly machine was designed, comprising a motor, a threaded rod, a movable pressure plate, and a limiting bracket. The distance between the operating table and the movable pressure plate is adjusted by the threaded rod driven by the motor, realizing the initial installation and inflation installation of the airbag. The limiting bracket and rollers disperse the reaction force, improving the safety and ease of operation of the device.
This technology enables the safe and convenient installation of airbags within the confined space of a bus chassis, avoiding high-risk operations and improving the lifespan and safety of the device.
Smart Images

Figure CN223981426U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to bus maintenance technical field, concretely relates to an air spring air bag assembly machine. BACKGROUND
[0002] The bus chassis adopts air spring to replace traditional steel plate spring, and the vehicle proportion is higher and higher. Air spring will appear the air leakage phenomenon due to the air bag injury, aging, inherent part defect and other reasons in the use process. According to the maintenance specification requirement and actual use situation, it needs to be replaced, and the replacement air bag becomes the main project of bus vehicle maintenance and repair, and the replacement air bag assembly is relatively easy, but the replacement air bag assembly cost is higher, and the existing technology mostly adopts the replacement bag body, but due to the narrow space of bus chassis, the old bag body is difficult to disassemble and the new bag body is difficult to install, and the air bag port is difficult to align, and the danger coefficient is higher in the vehicle bottom operation. SUMMARY
[0003] In order to overcome the technical problems that the air bag installation port is difficult to align and the installation space is insufficient in the prior art, the utility model provides an air spring air bag assembly machine.
[0004] The utility model discloses a technical scheme adopted for realizing the above-mentioned purpose is: an air spring air bag assembly machine, including the base, the vertical column is set up on the base, the motor is equipped on the base, the base is equipped with the operating platform in the vertical column front, the operating platform is equipped with the air bag fixed hole, the vertical screw rod is equipped in the sliding slot of the rectangular cross section and is equipped on the vertical column, the motor is connected with the screw rod through the shaft coupling, the both ends of the screw rod are connected on the vertical column through the bearing seat, the screw rod is connected with the nut, the moving pressure plate is connected on the nut, the inflation nozzle mounting hole is equipped on the moving pressure plate, the limit support is equipped on the moving pressure plate, the both ends of the limit support are rotatably connected with the gyro wheel, the gyro wheel is in contact with the vertical column, the both sides of the moving pressure plate are in contact with the inside of the gyro wheel;
[0005] Preferably, the middle and upper parts of the rear side of the vertical column are equipped with the travel switch, the travel switch is electrically connected with the motor, and the rear end of the moving pressure plate extends out of the rear side of the vertical column.
[0006] Preferably, the switch is electrically connected with the motor.
[0007] Preferably, the motor is installed on the base through the fixed seat, and the motor is a reverse speed reduction motor.
[0008] Preferably, the base is equipped with the supporting leg under the base.
[0009] Compared with the prior art, the advantages of this utility model are that by setting a motor threaded rod and a movable pressure plate, the distance between the operating table and the movable pressure plate can be adjusted. At the same time, it can limit the airbag, which facilitates the initial installation and inflation installation of the airbag. The airbag can be directly installed on the air spring base without the need for dangerous operations such as inflation under the bus. By setting a limiting bracket and rollers, the reaction force of the airbag on the movable pressure plate can be dispersed, thereby improving the service life of the movable pressure plate and enhancing the safety of the device. Attached Figure Description
[0010] Figure 1 This is a perspective view of the present invention.
[0011] Figure 2 This is a partial structural diagram of the present invention.
[0012] Figure 3 This is a rear view of the present invention.
[0013] Figure 4 This is a partial schematic diagram of the connection between the motor and the threaded rod of this utility model.
[0014] Figure 5 This is a side view of the present invention.
[0015] In the diagram: 1. Base; 2. Column; 3. Motor; 4. Control panel; 5. Slide groove; 6. Threaded rod; 7. Moving pressure plate; 8. Limit bracket; 9. Switch; 10. Support leg; 11. Roller; 12. Limit switch; 13. Coupling; 14. Fixed seat; 15. Inflation nozzle mounting hole; 16. Airbag fixing hole. Detailed Implementation
[0016] This utility model relates to an air spring assembly machine, such as... Figure 1 - Figure 5As shown, the system includes a base 1 with legs 10 underneath. A column 2 is vertically mounted on the base 1, and a motor 3 is mounted on the base 1 via a mounting bracket 14. The motor 3 is a reversible geared motor. A switch 9 is located below the base 1 and is electrically connected to the motor 3. An operating platform 4 is located on the base 1 in front of the column 2. The column 2 has a rectangular cross-section groove 5, within which a vertical threaded rod 6 is installed. The motor 3 is connected to the threaded rod 6 via a coupling 13. Both ends of the threaded rod 6 are connected to the column 2 via bearing seats. Nuts are threaded onto the threaded rod 6, and movable pressure plates are connected to the nuts. 7. The rear end of the movable pressure plate 7 extends to the rear side of the column 2. Limit switches 12 are provided in the middle and upper part of the rear side of the column 2. The rear end of the movable pressure plate 7 moves between the two limit switches 12. The movable pressure plate 7 is provided with a limit bracket 8. Rollers 11 are rotatably connected to both ends of the limit bracket 8. The rollers 11 contact the column 2 and can roll on the column 2. The two sides of the movable pressure plate 7 contact the inner side of the rollers 11, which plays a limiting role in the movable pressure plate 7. The movable pressure plate 7 is provided with an air nozzle mounting hole 15 corresponding to the air spring cover inflation hole. The operating table 4 is provided with an airbag fixing hole 16 corresponding to the air spring base positioning hole.
[0017] Working process: The air spring base is fixed to the operating table 4 by bolts through the airbag fixing hole 16. The air spring cover is fixed to the airbag mounting hole 15 of the moving pressure plate 7 via an external inflation nozzle. The airbag is placed on the air spring base, with its upper end aligned with the air spring cover port. The pedal switch 9 is pressed to start the motor 3. The motor 3 drives the threaded rod 6 to rotate within the column 2 via the coupling 13. The nut on the motor 3 drives the moving pressure plate 7 to move up and down on the threaded rod 6, initially pressing the air spring cover onto the airbag. The airbag is inflated through the inflation nozzle, allowing it to be installed between the air spring base and the cover. The air is released, the pedal switch 9 is pressed to start the motor 3, and the threaded rod 6 continues to move. Rotating the air spring causes the movable pressure plate 7 to continue moving downwards. Once it reaches a suitable height, the air spring is inflated through the inflation nozzle, causing the air spring to flip down and cover the air spring base. This completes the installation of the air spring airbag. Removing the inflation nozzle and the air spring base allows the installed air spring to be removed. The limiting bracket 8 and the roller 11 not only limit the movable pressure plate 7 but also distribute the reaction force exerted on the movable pressure plate 7 by the inflated airbag to the column 2. The limit switch 12 limits the position of the movable pressure plate 7. When the movable pressure plate 7 contacts the upper or middle limit switch 12, the limit switch 12 will control the motor 3 to shut down, thus limiting the movable pressure plate 7 in the vertical direction.
Claims
1. An air spring bag assembly machine characterized by, The utility model provides a kind of airbag fixing device, including base (1), vertical column (2) is arranged on the base (1), motor (3) is equipped on the base (1), operating platform (4) is equipped on the base (1) in front of vertical column (2), airbag fixing hole (16) is equipped on the operating platform (4), cross section is rectangular chute (5) is equipped on vertical column (2), vertical screw rod (6) is equipped in the chute (5), motor (3) is connected with screw rod (6) by shaft coupling (13), screw rod (6) both ends are connected on vertical column (2) by bearing seat, nut is threadedly connected on screw rod (6), moving pressure plate (7) is connected on the nut, inflation nozzle mounting hole (15) is equipped on the moving pressure plate (7), limiting support (8) is equipped on the moving pressure plate (7), gyro wheel (11) is rotatably connected on both ends of limiting support (8), gyro wheel (11) is contacted with vertical column (2), both sides of moving pressure plate (7) are contacted with the inside of gyro wheel (11).
2. The air spring bladder assembly machine of claim 1, wherein, The middle and upper part of the rear side of the vertical column (2) is provided with a travel switch (12), and the travel switch (12) is electrically connected with the motor (3).
3. The air spring bladder assembly machine of claim 1, wherein, The rear end of the moving pressure plate (7) extends out of the rear side of the vertical column (2).
4. The air spring bladder assembly machine of claim 1, wherein, The bottom of the base (1) is provided with a switch (9), and the switch (9) is electrically connected with the motor (3).
5. The air spring bladder assembly machine of claim 1, wherein, The motor (3) is installed on the base (1) through a fixing seat (14), and the motor (3) is a reverse speed reduction motor. The bottom of the base (1) is provided with a supporting leg (10).