High pressure high speed oscillating gear motor

Abstract

The utility model discloses a high pressure high -speed vibration gear motor, including front cover, back cover, shell, oil seal, sealing element, drive shaft, driven shaft and axle sleeve assembly, the oil seal is around drive shaft, and the oil seal is single -lipped pressure -resistant oil seal, and is equipped with the shaft seal protection gasket on the oil seal, and the shaft seal protection gash is fixed with single -lipped pressure -resistant oil seal inner wall and supports the oil seal and carries out, the sealing element is located on the front cover, back cover, and the sealing element is 8 -letter sealing element. The utility model has the characteristics of high -pressure resistance, high -speed, shock resistance, satisfies market needs.

Description

Technical Field

[0001] This utility model relates to the field of motors, and in particular to a high-voltage, high-speed vibratory gear motor. Background Technology

[0002] Vibratory rollers utilize the machine's own weight and the excitation force generated by the vibrator to force the material being compacted to undergo vertical forced vibration, thereby improving the compaction effect. This working principle makes vibratory rollers widely used in road construction, bridge construction, and other projects.

[0003] Working principle of a vibratory motor: A road roller is an earthmoving machine designed to compact the ground. The vibratory motor is the main component that generates the vibrational energy of the road roller. The vibratory motor uses a high-speed rotating eccentric wheel to generate centrifugal force, driving the vibration system of the road roller. The vibratory motor converts mechanical energy into vibrational energy, enabling the road roller to better compact the ground during construction.

[0004] For older road roller motors, their performance can be improved through technical upgrades. Low-speed hydraulic motors can be replaced with high-speed motors paired with a speed reducer to improve torque and speed matching, thereby enhancing the road roller's driving effect.

[0005] Therefore, it is necessary to develop high-pressure, high-speed vibratory gear motors to meet the performance improvement requirements. Utility Model Content

[0006] Purpose of the utility model: In view of the shortcomings and defects of the existing technology, this utility model provides a high-pressure high-speed vibration gear motor, which has the characteristics of high pressure resistance, high speed and vibration resistance, and meets market needs.

[0007] Technical solution: This utility model discloses a high-pressure high-speed vibration gear motor, characterized in that it includes a front cover, a rear cover, a housing, an oil seal, a sealing element, a drive shaft, a driven shaft, and a bushing assembly; the oil seal surrounds the drive shaft, and the oil seal is a single-lip pressure-resistant oil seal, with a shaft seal protective gasket on the oil seal, the shaft seal protective gasket fitting against the inner wall of the single-lip pressure-resistant oil seal to support and fix the oil seal; the sealing element is located on the front cover and the rear cover, and the sealing element is an 8-shaped sealing element.

[0008] The drive shaft and driven shaft are located inside the housing.

[0009] The drive shaft is provided with a bushing assembly on its outer side.

[0010] The front cover, housing, and rear cover are connected in sequence.

[0011] The front cover and the housing, and the housing and the rear cover are connected by locating pins.

[0012] The single-lip pressure-resistant oil seal is provided with a retaining ring for the hole.

[0013] The outer sealing ring is provided at the connection between the shell and the rear cover.

[0014] The figure-eight seal is provided with a figure-eight retaining ring.

[0015] Beneficial Effects: Compared with existing technologies, this utility model has the following significant advantages: This high-pressure, high-speed vibratory gear motor mainly provides power for the rollers of road rollers, and its main features are: high pressure resistance, high speed, and vibration resistance. To this end, improvements have been made to the original motor structure. A shaft seal protective gasket structure has been added to the outer port of the motor oil seal to enhance its pressure resistance; the sealing element has been changed from the previous design commonly used on the bushing to a design on the front and rear covers, and a double-layer sealing structure has been adopted to prevent the risk of oil leakage under high pressure conditions. The motor has a floating side plate structure, and after 100 hours of durability testing and a 40W impact test, no abnormalities occurred. The motor's lifespan and performance are practically guaranteed.

[0016] This gear motor features a novel design, boasting advantages such as pressure resistance and high-speed performance. It also represents a significant breakthrough in motor lifespan, laying the foundation for future vibration motor applications. Furthermore, this motor structure provides valuable practical reference for other gear motor series. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0019] Figure 3 This is a schematic diagram of the planar cross-sectional structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the front cover sealing groove of this utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the rear cover sealing groove of this utility model;

[0022] In the diagram, 1 is the drive shaft; 2 is the retaining ring for the bore; 3 is the driven shaft; 4 is the shaft seal protective gasket; 5 is the front cover; 6 is the single-lip pressure-resistant oil seal; 7 is the locating pin; 8 is the bushing assembly; 9 is the housing; 10 is the outer sealing ring; 11 is the figure-eight seal; 12 is the figure-eight retaining ring; and 13 is the rear cover. Detailed Implementation

[0023] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0024] This utility model discloses a high-pressure, high-speed vibratory gear motor, comprising a front cover 5, a rear cover 13, a housing 9, an oil seal, a sealing element, a drive shaft 1, a driven shaft 3, and a bushing assembly 8. The oil seal surrounds the drive shaft 1 and is a single-lip pressure-resistant oil seal 6. A shaft seal protective gasket 4 is provided on the oil seal, and the shaft seal protective gasket 4 fits against the inner wall of the single-lip pressure-resistant oil seal 6 to support and fix the oil seal. The sealing element is located on the front cover 5 and the rear cover 13, and the sealing element is an 8-shaped sealing element 11. The drive shaft 1 and the driven shaft 3 are located inside the housing 9. The bushing assembly 8 is provided on the outer side of the drive shaft 1. The front cover 5, the housing 9, and the rear cover 13 are connected in sequence. The front cover 5 and the housing 9, and the housing 9 and the rear cover 13 are connected by locating pins 7. A retaining ring 2 is provided at the single-lip pressure-resistant oil seal 6. An outer sealing ring 10 is provided at the connection between the housing 9 and the rear cover 13. An 8-shaped retaining ring 12 is provided at the 8-shaped sealing element 11.

[0025] This motor is designed for use on the left front and right rear wheels of a small road roller, with a vibration frequency of 63-66Hz, approximately 4000 r / min. A shaft seal protective gasket structure has been added to the existing ordinary motor drive shaft oil seal. In ordinary motors under high-pressure conditions, if the return oil back pressure exceeds the oil seal's pressure resistance rating, the oil seal will fold outwards, leading to oil leakage and ultimately motor failure. This shaft seal protective gasket structure improves upon the original pressure-resistant oil seal by using a single-lip pressure-resistant oil seal. The protective gasket fits snugly against the inner wall of the single-lip oil seal after assembly, providing support and fixation, significantly improving the motor's high-pressure resistance. An 8-shaped sealing ring is used, which controls the compression of the seal through high-pressure floating. Conventional seals are placed on floating bushings, representing a bold structural innovation. Motor life tests have shown that this structure offers superior motor performance and lifespan.

[0026] This invention innovates upon the conventional motor structure by adding a protective gasket to the outer opening of the shaft seal during assembly. This ensures a tight fit between the protective gasket and the inner opening of the single-lip oil seal, a key innovation for improving the motor's pressure resistance. Secondly, the shaft sleeve is a smooth sleeve, and the figure-eight seal is integrated into the front and rear covers. This figure-eight seal, with its added outer ring, provides a double seal along with the seal on the housing, preventing oil leakage even under high-frequency vibration.

Claims

1. A high-pressure, high-speed vibratory gear motor, characterized in that: It includes a front cover (5), a rear cover (13), a housing (9), an oil seal, a sealing element, a drive shaft (1), a driven shaft (3), and a bushing assembly (8); the oil seal surrounds the drive shaft (1), and the oil seal is a single-lip pressure-resistant oil seal (6), and a shaft seal protection gasket (4) is provided on the oil seal. The shaft seal protection gasket (4) fits against the inner wall of the single-lip pressure-resistant oil seal (6) to support and fix the oil seal; the sealing element is located on the front cover (5) and the rear cover (13), and the sealing element is an 8-shaped sealing element (11).

2. The high-pressure high-speed vibratory gear motor according to claim 1, characterized in that: The drive shaft (1) and driven shaft (3) are located inside the housing (9).

3. The high-pressure high-speed vibratory gear motor according to claim 1, characterized in that: The drive shaft (1) is provided with a bushing assembly (8) on its outer side.

4. The high-pressure high-speed vibratory gear motor according to claim 1, characterized in that: The front cover (5), the shell (9), and the rear cover (13) are connected in sequence.

5. The high-pressure high-speed vibratory gear motor according to claim 4, characterized in that: The front cover (5) and the housing (9), and the housing (9) and the rear cover (13) are connected by positioning pins (7).

6. The high-pressure high-speed vibratory gear motor according to claim 1, characterized in that: The single-lip pressure-resistant oil seal (6) is provided with a retaining ring (2) for the hole.

7. The high-pressure high-speed vibratory gear motor according to claim 1, characterized in that: An outer sealing ring (10) is provided at the connection between the housing (9) and the rear cover (13).

8. The high-pressure high-speed vibratory gear motor according to claim 1, characterized in that: The figure-eight seal (11) is provided with a figure-eight retaining ring (12).

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