Car washing arm transmission device
By using waist holes, bolts, and adjusting shims to connect the car wash arm transmission device, stable gear meshing is ensured, solving the problems of complex structure and poor synchronization of existing double-arm car wash arms, and achieving simple disassembly and assembly and high-reliability transmission.
Patent Information
- Application Number
- CN202423006334.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-06
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-12-06
AI Technical Summary
The existing dual-arm car wash arm has a complex structure, is inconvenient to disassemble and assemble, has poor rotational synchronization, and has a high failure rate and short lifespan due to the timing belt and timing pulley structure.
The transmission device includes a base plate, first and second rotating mechanisms, and a drive mechanism. It is connected by waist holes, bolts, and adjusting shims to ensure stable gear meshing. It uses a hollow shaft for water supply and adjusts the spacing and parallelism through L-shaped connectors and connecting bolts.
It achieves a car wash arm transmission with simple structure, convenient assembly and disassembly, good rotational synchronization, low failure rate, and long service life, thus improving transmission smoothness and reliability.
Smart Images

Figure CN223533467U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a car wash arm transmission device, belonging to the technical field of non-contact car wash machines. Background Technology
[0002] With societal progress, the number of people owning luxury cars is increasing, making mobile contactless automatic car washes increasingly popular. These washes offer advantages such as flexible deployment, fast washing speed, and no damage to the vehicle's surface. Existing contactless car washes can be categorized into single-arm and double-arm models based on the type of washing arms. During the wash, sensors detect the vehicle's length and position, then the single or double arm moves to clean the vehicle. A double-arm wash can clean both sides of the vehicle simultaneously with a single forward and backward movement, significantly increasing washing efficiency compared to a single-arm wash. However, existing double-arm wash arms have complex structures, making disassembly and assembly inconvenient; the rotational movements of the two arms lack synchronization, posing a risk of collision with the vehicle; and the transmission mechanisms driving the synchronous rotation of the two arms often use synchronous belts and pulleys, resulting in a high failure rate and short lifespan.
[0003] Therefore, there is an urgent need for a car wash arm transmission device that is simple in structure, easy to assemble and disassemble, has good rotational synchronization, low failure rate, and long service life. Summary of the Invention
[0004] The purpose of this utility model is to overcome the above-mentioned shortcomings and provide a car wash arm transmission device that is simple in structure, easy to disassemble and assemble, has good rotational synchronization, low failure rate, and long service life.
[0005] The purpose of this utility model is achieved as follows:
[0006] A car wash arm transmission device includes a base plate, a first rotating mechanism and a second rotating mechanism arranged side by side on the base plate, and a drive mechanism; the base plate is provided with waist holes for mounting the first rotating mechanism and the second rotating mechanism;
[0007] The first rotating mechanism includes a first mounting base mounted on a base plate by bolts and a slotted hole, a first rotating shaft rotatably disposed in the first mounting base, and a first gear fixedly mounted on the first rotating shaft;
[0008] The second rotating mechanism includes a second mounting base mounted on the base plate by bolts and a slotted hole, a second rotating shaft rotatably disposed in the second mounting base, and a second gear fixedly mounted on the second rotating shaft;
[0009] The drive mechanism includes a support plate mounted on the second mounting base, a transmission motor mounted on the support plate, and a drive gear mounted on the output shaft of the transmission motor.
[0010] The first mounting base and the second mounting base are connected by connecting bolts; the second mounting base and the support plate are connected by connecting bolts; the first gear, the second gear and the drive gear are meshed and connected in sequence.
[0011] Furthermore, the first mounting base, the second mounting base, and the support plate are all provided with L-shaped connectors that correspond to each other, and the L-shaped connectors are in planar contact with each other and are locked together by connecting bolts.
[0012] Furthermore, adjusting shims are provided on the contact surfaces of each L-shaped connector to adjust the spacing.
[0013] Furthermore, the adjusting shim is replaced with a disc spring.
[0014] Furthermore, four sets of connecting bolts and adjusting shims are provided between the L-shaped connectors connecting the first and second mounting seats, and between the L-shaped connectors connecting the second mounting seat and the support plate.
[0015] Furthermore, both the first and second rotating shafts are hollow shafts, used to introduce high-pressure cleaning water into the car wash arm.
[0016] Furthermore, the top of the first and second shafts are equipped with right-angle rotary joints and the bottom with connecting flanges, which are used to connect the water supply line to the car wash arm.
[0017] Compared with the prior art, the beneficial effects of this utility model are:
[0018] This utility model provides space for adjusting the distance and position of the first and second rotating mechanisms by setting waist holes on the base plate; the connection method of adjusting shims and connecting bolts makes the distance and parallelism between the first rotating mechanism, the second rotating mechanism and the drive mechanism adjustable; it ensures that the first gear, the second gear and the drive gear of the transmission device mesh stably in sequence, improving the smoothness and reliability of transmission and extending the service life; the overall structure of the device is simple, easy to disassemble and assemble, has good rotation synchronization, low failure rate and long service life. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the structure of a car wash arm transmission device according to the present invention.
[0020] Figure 2 This is a top view schematic diagram of a car wash arm transmission device according to the present invention.
[0021] in:
[0022] 1. Base plate; 2. First rotating mechanism; 3. Second rotating mechanism; 4. Drive mechanism; 5. L-shaped connector; 6. Adjusting shim; 7. Connecting bolt; 8. Right-angle rotary joint; 9. Connecting flange;
[0023] Waist hole 11, first mounting base 21, first rotating shaft 22, first gear 23, second mounting base 31, second rotating shaft 32, second gear 33, support plate 41, transmission motor 42, drive gear 43. Detailed Implementation
[0024] See Figures 1-2 This utility model relates to a car wash arm transmission device, comprising a base plate 1, a first rotating mechanism 2 and a second rotating mechanism 3 arranged side by side on the base plate 1, and a drive mechanism 4; the base plate 1 is provided with waist holes 11 for mounting the first rotating mechanism 2 and the second rotating mechanism 3; the base plate 1 can be directly the crossbeam of the car wash machine cleaning cart, or the base plate 1 can be mounted on the crossbeam of the car wash machine cleaning cart; the waist holes 11 allow for adjustment of the distance between the first rotating mechanism 2 and the second rotating mechanism 3.
[0025] The first rotating mechanism 2 includes a first mounting base 21 mounted on the base plate 1 by bolts and waist holes 11, a first rotating shaft 22 rotatably disposed in the first mounting base 21, and a first gear 23 fixedly mounted on the first rotating shaft 22;
[0026] The second rotating mechanism 3 includes a second mounting base 31 mounted on the base plate 1 by bolts and waist holes 11, a second rotating shaft 32 rotatably disposed in the second mounting base 31, and a second gear 33 fixedly mounted on the second rotating shaft 32;
[0027] The drive mechanism 4 includes a support plate 41 mounted on the second mounting base 31, a transmission motor 42 mounted on the support plate 41, and a drive gear 43 mounted on the output shaft of the transmission motor 42.
[0028] The first rotating shaft 22 and the second rotating shaft 32 are both hollow shafts, used to supply high-pressure cleaning water to the car wash arm; the top of the first rotating shaft 22 and the second rotating shaft 32 are equipped with right-angle rotary joints 8 and the bottom is equipped with connecting flanges 9, used to connect the water supply pipeline to the car wash arm, and the water supply system of the car wash machine sends high-pressure cleaning water into the car wash arm to wash the vehicle through the water supply pipeline.
[0029] The first gear 23, the second gear 33 and the drive gear 43 are sequentially meshed and connected; the drive gear 43 drives the second gear 33 to rotate, and the second gear 33 continues to drive the first gear 23 to rotate synchronously in opposite directions; the meshing distance and position between the three gears are respectively achieved by adjusting the distance and position between the first mounting base 21, the second mounting base 31 and the support plate 41, thereby ensuring the stability of the meshing transmission operation.
[0030] The first mounting base 21 and the second mounting base 31 are connected by connecting bolts 7; the second mounting base 31 and the support plate 41 are also connected by connecting bolts 7. Specifically, the first mounting base 21, the second mounting base 31, and the support plate 41 are all provided with L-shaped connectors 5 that correspond to each other. The L-shaped connectors 5 are in planar contact with each other and are locked together by connecting bolts 7. Adjusting shims 6 are provided on the contact surfaces of each L-shaped connector 5 to adjust the distance between the first mounting base 21, the second mounting base 31, and the support plate 41. In other embodiments, the adjusting shims 6 can be replaced by disc springs. Using disc springs can simplify the distance adjustment operation, but the distance adjustment range is limited by the deformation range of the disc springs. Four sets of connecting bolts 7 and adjusting shims 6 are provided between the L-shaped connectors 5 connecting the first mounting base 21 and the second mounting base 31, and between the L-shaped connectors 5 connecting the second mounting base 31 and the support plate 41. By independently adjusting the four contact points of the four sets of connecting bolts 7 and adjusting shims 6, the spacing and parallelism of the positions of the first mounting base 21, the second mounting base 31 and the support plate 41 are controlled, ensuring stable meshing transmission between the first gear 23, the second gear 33 and the drive gear 43.
[0031] This utility model provides space for adjusting the distance and position of the first rotating mechanism 2 and the second rotating mechanism 3 by setting a waist hole 11 on the base plate 1; the connection method of adjusting shims 6 and connecting bolts 7 makes the distance and parallelism between the first rotating mechanism 2, the second rotating mechanism 3 and the drive mechanism 4 adjustable; it ensures that the first gear 23, the second gear 33 and the drive gear 43 of the transmission device mesh stably in sequence, improves the smoothness and reliability of transmission, and extends the service life; the overall structure is simple, easy to disassemble and assemble, has good rotation synchronization, low failure rate and long service life.
[0032] Additionally, it should be noted that the above-described specific implementation is merely an optimized solution of this patent, and any modifications or improvements made by those skilled in the art based on the above concept are within the scope of protection of this patent.
Claims
1. A car wash arm transmission device, characterized in that: It includes a base plate (1), a first rotating mechanism (2) and a second rotating mechanism (3) arranged side by side on the base plate (1), and a drive mechanism (4); the base plate (1) is provided with waist holes (11) for mounting the first rotating mechanism (2) and the second rotating mechanism (3); The first rotating mechanism (2) includes a first mounting base (21) mounted on the base plate (1) by bolts and waist holes (11), a first rotating shaft (22) rotatably disposed in the first mounting base (21), and a first gear (23) fixedly mounted on the first rotating shaft (22). The second rotating mechanism (3) includes a second mounting base (31) mounted on the base plate (1) by bolts and waist holes (11), a second rotating shaft (32) rotatably disposed in the second mounting base (31), and a second gear (33) fixedly mounted on the second rotating shaft (32). The drive mechanism (4) includes a support plate (41) mounted on the second mounting base (31), a transmission motor (42) mounted on the support plate (41), and a drive gear (43) mounted on the output shaft of the transmission motor (42). The first mounting base (21) and the second mounting base (31) are connected by connecting bolts (7); the second mounting base (31) and the support plate (41) are connected by connecting bolts (7); the first gear (23), the second gear (33) and the drive gear (43) are meshed and connected in sequence.
2. The car wash arm transmission device according to claim 1, characterized in that: The first mounting base (21), the second mounting base (31) and the support plate (41) are all provided with L-shaped connectors (5) that correspond to each other. The L-shaped connectors (5) are in planar contact with each other and are locked together by connecting bolts (7).
3. The car wash arm transmission device according to claim 2, characterized in that: Adjusting shims (6) are provided on the contact surfaces of each L-shaped connector (5) for adjusting the spacing.
4. The car wash arm transmission device according to claim 3, characterized in that: Replace the adjusting shim (6) with a disc spring.
5. The car wash arm transmission device according to claim 3, characterized in that: Four sets of connecting bolts (7) and adjusting shims (6) are provided between the L-shaped connector (5) connecting the first mounting base (21) and the second mounting base (31), and between the L-shaped connector (5) connecting the second mounting base (31) and the support plate (41).
6. The car wash arm transmission device according to claim 1, characterized in that: Both the first rotating shaft (22) and the second rotating shaft (32) are hollow shafts used to pass high-pressure cleaning water into the car wash arm.
7. The car wash arm transmission device according to claim 6, characterized in that: The first rotating shaft (22) and the second rotating shaft (32) are equipped with right-angle rotary joints (8) at the top and connecting flanges (9) at the bottom for connecting the water supply line to the car wash arm.