Gear speed change mute efficient vibrating spear
By combining a gear transmission structure with planetary gears and an eccentric oscillator, the problems of portability and insufficient lifespan of existing high-end vibrators have been solved, achieving improved efficiency, lightweight design, and durability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YANGGU DONGRUN CONSTR MASCH CO LTD
- Filing Date
- 2025-02-18
- Publication Date
- 2026-05-15
AI Technical Summary
Existing high-end concrete vibrators have short bearing life due to the built-in high-frequency motor, resulting in a short overall lifespan and poor portability.
It adopts a gear transmission structure, which combines planetary gears with an eccentric oscillator and uses a flexible shaft to change the vibration speed, thereby enhancing transmission balance and impact resistance.
It improves the portability and service life of the vibrator, adapts to harsh environments, and extends the service life of the overall equipment.
Smart Images

Figure CN224244441U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of concrete equipment technology, and in particular to a gear-driven, quiet, and efficient vibratory bar. Background Technology
[0002] Currently, most concrete vibratory rods used in the high-end market are built-in high-frequency motor vibratory rods. However, when running at high speed, the bearing life is relatively short, resulting in a shorter overall lifespan for the vibratory rod. Furthermore, because of the built-in high-frequency motor, the vibratory rod is relatively heavy and has poor portability. Utility Model Content
[0003] This invention proposes a gear-driven, quiet, and efficient vibrating rod.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] A gear-driven, quiet, and efficient vibratory rod includes a rod tip, a first rotating bearing, a vibratory rod tube, an eccentric oscillator, a second rotating bearing, a planetary gear, a pipe connector, a flexible shaft, a flexible hose, and a gear shaft. The vibratory rod tube contains an eccentric oscillator. The lower end of the eccentric oscillator is connected to the vibratory rod tube via the first rotating bearing. The upper end of the eccentric oscillator is connected to the vibratory rod tube via the second rotating bearing. A planetary gear is positioned above the eccentric oscillator. The outer cylindrical surface of the planetary gear is fixedly connected to the inner wall of the vibratory rod tube. A gear shaft is positioned between the planetary gear and the eccentric oscillator. The upper end of the gear shaft meshes with multiple planetary gears inside the planetary gear. The lower end of the gear shaft is connected to the upper end of the eccentric oscillator via a pin for transmission. A flexible shaft is positioned above the meshing planetary gear, and the lower end of the flexible shaft is fixedly connected to a planet carrier on the multiple planetary gears.
[0006] Furthermore, the upper end of the vibrating rod tube is provided with a pipe joint, the lower end of the pipe joint is fixed to and connected to the upper end of the vibrating rod tube, and the flexible shaft is located in the pipe joint.
[0007] Furthermore, the upper end of the pipe joint is provided with a flexible hose, the lower end of the flexible hose is fixed and connected to the upper end of the pipe joint, and the flexible shaft is located in the flexible hose and fits the flexible hose with a slight gap.
[0008] Furthermore, the lower end of the vibrating rod tube is provided with a rod tip, and the upper end of the rod tip is fixedly connected to the lower end of the vibrating rod tube.
[0009] Beneficial effects: By setting planetary gears, the vibration speed of the eccentric oscillator can be changed. The planetary gears are compact, small in size and light in weight, which can improve the portability of the vibrator. Moreover, the planetary gear transmission is balanced, has strong resistance to impact and vibration, can adapt to harsh operating environments, and improve the service life of the vibrator. Attached Figure Description
[0010] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0011] Figure label:
[0012] 1. Rod tip, 2. Rotary bearing one, 3. Vibrating rod tube, 4. Eccentric oscillator, 5. Rotary bearing two, 6. Planetary speed change gear, 7. Pipe joint, 8. Flexible shaft, 9. Flexible hose, 10. Gear shaft. Detailed Implementation
[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0014] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0015] Reference Figure 1 A gear-driven, quiet, and high-efficiency vibratory rod includes a rod tip 1, a first rotating bearing 2, a vibratory rod tube 3, an eccentric oscillator 4, a second rotating bearing 5, a planetary gear 6, a pipe connector 7, a flexible shaft 8, a flexible hose 9, and a gear shaft 10. The vibratory rod tube 3 houses the eccentric oscillator 4, with the first rotating bearing 2 at its lower end, rotatably connecting the lower end of the eccentric oscillator 4 to the vibratory rod tube 3 via the first rotating bearing 2. The upper end of the eccentric oscillator 4 is equipped with the second rotating bearing 5, connecting the upper end of the eccentric oscillator 4 to the vibratory rod via the second rotating bearing 5. The tube 3 is rotatably connected, and a planetary gear 6 is provided above the eccentric oscillator 4. The outer cylindrical surface of the planetary gear 6 is fixedly connected to the inner wall of the vibrating rod tube 3. A gear shaft 10 is provided between the planetary gear 6 and the eccentric oscillator 4. The upper end of the gear shaft 10 meshes with multiple planetary gears inside the planetary gear 6. The lower end of the gear shaft 10 is connected to the upper end of the eccentric oscillator 4 through a pin for transmission. A flexible shaft 8 is provided on the upper side of the planetary gear meshing. The lower end of the flexible shaft 8 is fixedly connected to the planet carrier on the multiple planetary gears.
[0016] The upper end of the vibrating rod tube 3 is provided with a pipe joint 7, the lower end of the pipe joint 7 is fixed and connected to the upper end of the vibrating rod tube 3, and the flexible shaft 8 is located in the pipe joint 7.
[0017] The upper end of the pipe connector 7 is provided with a flexible hose 9. The lower end of the flexible hose 9 is fixed and connected to the upper end of the pipe connector 7. The flexible shaft 8 is located in the flexible hose 9 and fits the flexible hose 9 with a slight gap.
[0018] The lower end of the vibrating rod tube 3 is provided with a rod tip 1, and the upper end of the rod tip 1 is fixedly connected to the lower end of the vibrating rod tube 3.
[0019] Working principle:
[0020] The motor drives the flexible shaft 8 to rotate, and the flexible shaft 8 drives multiple planetary gears in the planetary gear 6 to rotate through the planetary carrier. The multiple planetary gears drive the gear shaft 10 and the eccentric oscillator 4 at the lower end of the gear shaft 10 to rotate. The vibration effect of the device is achieved by the inertia generated by the continuous rotation of the eccentric oscillator 4. The planetary gear 6 has a compact structure, small size and light weight, which can improve the portability of the vibrator. Moreover, the planetary gear 6 has a balanced transmission, strong resistance to impact and vibration, can adapt to harsh operating environments, and improve the service life of the vibrator.
[0021] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A gear-driven, quiet, and high-efficiency vibrating rod, characterized in that: The vibrating rod tube (3) includes a rod tip (1), a first rotating bearing (2), a vibrating rod tube (3), an eccentric oscillator (4), a second rotating bearing (5), a planetary gear (6), a pipe connector (7), a flexible shaft (8), a flexible hose (9), and a gear shaft (10). The vibrating rod tube (3) contains an eccentric oscillator (4). The lower end of the eccentric oscillator (4) is provided with a first rotating bearing (2), and the lower end of the eccentric oscillator (4) is rotatably connected to the vibrating rod tube (3) via the first rotating bearing (2). The upper end of the eccentric oscillator (4) is provided with a second rotating bearing (5), and the upper end of the eccentric oscillator (4) is connected to the vibrating rod via the second rotating bearing (5). The tube (3) is rotatably connected. A planetary gear (6) is provided above the eccentric oscillator (4). The outer cylindrical surface of the planetary gear (6) is fixedly connected to the inner wall of the vibrating rod tube (3). A gear shaft (10) is provided between the planetary gear (6) and the eccentric oscillator (4). The upper end of the gear shaft (10) meshes with multiple planetary gears inside the planetary gear (6). The lower end of the gear shaft (10) is connected to the upper end of the eccentric oscillator (4) by a pin for transmission. A flexible shaft (8) is provided on the upper side of the planetary gear meshing. The lower end of the flexible shaft (8) is fixedly connected to the planet carrier on the multiple planetary gears.
2. The gear-driven, quiet, and high-efficiency vibrating rod according to claim 1, characterized in that: The upper end of the vibrating rod tube (3) is provided with a pipe joint (7), the lower end of the pipe joint (7) is fixed and connected to the upper end of the vibrating rod tube (3), and the flexible shaft (8) is located in the pipe joint (7).
3. The gear-driven, quiet, and high-efficiency vibrating rod according to claim 1, characterized in that: The upper end of the pipe connector (7) is provided with a flexible hose (9), the lower end of the flexible hose (9) is fixed and connected to the upper end of the pipe connector (7), and the flexible shaft (8) is located in the flexible hose (9) and fits the flexible hose (9) with a slight gap.
4. The gear-driven, quiet, and high-efficiency vibrating rod according to claim 1, characterized in that: The lower end of the vibrating rod tube (3) is provided with a rod tip (1), and the upper end of the rod tip (1) is fixedly connected to the lower end of the vibrating rod tube (3).