Novel sealed gear chamber

Abstract

The utility model provides a novel sealed gear chamber, and belongs to the technical field of engine parts. The gear chamber solves the problems that an existing gear chamber is poor in sealing performance and large in noise. The novel sealing gear chamber comprises a box body, a shaft hole is formed in the box body, a rotating shaft for mounting a gear is mounted in the shaft hole, a movable sealing gasket is arranged at the position, located at the shaft hole, of the rotating shaft in a sleeving mode, a sliding rail groove is formed in the outer surface of the movable sealing gasket, a ball for the movable sealing gasket to rotate is arranged in the sliding rail groove, and the ball abuts against the interior of the shaft hole. A plurality of open grooves are formed in the box body in the circumferential direction of the shaft hole, round clamping columns are arranged in the open grooves, and a sealing cover plate is installed at the position, corresponding to the shaft hole, of the box body. The utility model has the advantages of good leakproofness and noise reduction effect.

Description

Technical Field

[0001] This utility model belongs to the technical field of engine parts, and specifically relates to a novel sealed gear chamber. Background Technology

[0002] The gear chamber is an important component of the engine. The gears inside the gear chamber mainly include the crankshaft timing main drive gear, the fuel injection pump idler gear, the fuel injection pump timing gear, the camshaft timing gear, the oil pump drive gear, and the hydraulic pump idler gear.

[0003] Existing gear chambers have many problems, such as poor sealing performance, which leads to lubricating oil leakage, resulting in not only a waste of resources but also potential safety hazards. At the same time, the noise generated during gear meshing is relatively large, which seriously affects the engine's working environment and user comfort. Summary of the Invention

[0004] The purpose of this invention is to address the aforementioned problems in the existing technology by providing a novel sealed gear chamber.

[0005] The objective of this utility model can be achieved through the following technical solution: A novel sealed gear chamber includes a housing with a shaft hole on the housing. A rotating shaft for gear installation is installed in the shaft hole. The rotating shaft is characterized by having a dynamic sealing gasket fitted at the shaft hole, and a slide rail groove is formed on the outer surface of the dynamic sealing gasket. A ball bearing for rotating the dynamic sealing gasket is arranged in the slide rail groove, and the ball bearing abuts against the shaft hole. The housing has several opening slots circumferentially along the shaft hole, and each opening slot has a circular locking post. A sealing cover plate is installed on the housing at the position corresponding to the shaft hole. A fixing plate and a sealing plate are provided on the sealing cover plate. Several claw buckles for clamping the circular locking posts are arranged circumferentially on the sealing plate.

[0006] In the aforementioned novel sealed gear chamber, sealing grooves are provided at the connection points between the fixed plate and the sealing plate and the rotating shaft, and a static sealing ring for sealing is provided in the sealing groove.

[0007] In the aforementioned novel sealed gear chamber, the fixing plate and the sealing plate are an integral structure.

[0008] In the aforementioned novel sealed gear chamber, the claw buckle is made of an elastic material.

[0009] In the aforementioned novel sealed gear chamber, the sealing cover is made of a high-strength, low-noise alloy material.

[0010] Compared with existing technologies, this new type of sealed gear chamber effectively prevents lubricating oil leakage through dual sealing of dynamic and static seals, improves the sealing performance of the gear chamber, and ensures the normal operation of the gear transmission system; and the installation of a sealing cover plate on the outer ring of the shaft hole reduces the noise generated when the gear rotates inside the housing, thus improving the working environment. Attached Figure Description

[0011] Figure 1 This is a three-dimensional structural diagram of the novel sealed gear chamber.

[0012] Figure 2 This is a cross-sectional view of the novel sealed gear chamber.

[0013] Figure 3 This is a partial sectional view of the sealed gear chamber of this novel invention.

[0014] In the diagram, 1. housing; 2. shaft hole; 3. rotating shaft; 4. dynamic sealing gasket; 5. slide rail groove; 6. ball bearing; 7. opening groove; 8. circular retaining post; 9. fixing plate; 10. sealing plate; 11. retaining claw buckle; 12. sealing groove; 13. static sealing ring. Detailed Implementation

[0015] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0016] like Figure 1 , Figure 2 , Figure 3 As shown, the novel sealed gear chamber includes a housing 1 with a shaft hole 2. A rotating shaft 3 for gear installation is installed in the shaft hole 2. A dynamic sealing gasket 4 is fitted on the rotating shaft 3 at the shaft hole 2. A slide rail groove 5 is formed on the outer surface of the dynamic sealing gasket 4. A ball bearing 6 for rotating the dynamic sealing gasket 4 is arranged in the slide rail groove 5 and abuts against the shaft hole 2. Several opening grooves 7 are formed on the housing 1 around the shaft hole 2, and circular locking pins 8 are formed in the opening grooves 7. A sealing cover plate is installed on the housing 1 at the position corresponding to the shaft hole 2. A fixing plate 9 and a sealing plate 10 are provided on the sealing cover plate. Several claw buckles 11 for clamping the circular locking pins 8 are arranged around the sealing plate 10.

[0017] To elaborate further, both the fixed plate 9 and the sealing plate 10 have sealing grooves 12 at their connection points with the rotating shaft 3, and a static sealing ring 13 for sealing is provided in the sealing groove 12.

[0018] To elaborate further, the fixing plate 9 and the sealing plate 10 are an integrated structure.

[0019] To elaborate further, the claw buckle 11 is made of elastic material.

[0020] To elaborate further, the sealing cover is made of high-strength, low-noise alloy material.

[0021] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0022] Although this document frequently uses terms such as housing 1, shaft hole 2, rotating shaft 3, dynamic sealing gasket 4, slide rail groove 5, ball bearing 6, opening groove 7, circular locking post 8, fixing plate 9, sealing plate 10, locking claw buckle 11, sealing groove 12, and static sealing ring 13, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A new type of sealed gear chamber, comprising a box (1), having an axle hole (2) on the box (1), an axle (3) for installing gears is installed in the axle hole (2), characterized in that, The rotating shaft (3) is sleeved with a dynamic sealing gasket (4) at the shaft hole (2), and a sliding rail groove (5) is formed on the outer surface of the dynamic sealing gasket (4), a ball (6) for rotating the dynamic sealing gasket (4) is arranged in the sliding rail groove (5), and the ball (6) abuts against the shaft hole (2), a plurality of open grooves (7) are formed on the box (1) along the circumference of the shaft hole (2), the open grooves (7) are provided with circular clamping columns (8), a sealing cover plate is installed on the box (1) at the position corresponding to the shaft hole (2), the sealing cover plate is provided with a fixing plate (9) and a sealing plate (10), and a plurality of clamping jaw buckles (11) for clamping the circular clamping columns (8) are arranged on the sealing plate (10) in the circumferential direction.

2. A novel sealed gear chamber as claimed in claim 1, wherein, Sealing grooves (12) are formed on the fixing plate (9) and the sealing plate (10) at the positions connected with the rotating shaft (3), and static sealing rings (13) for sealing are arranged in the sealing grooves (12).

3. A novel sealed gear chamber as claimed in claim 1, wherein, The fixing plate (9) and the sealing plate (10) are of an integrated structure.

4. A novel sealed gear chamber as claimed in claim 1, wherein, The clamping jaw buckles (11) are made of elastic material.

5. A novel sealed gear chamber as claimed in claim 1, wherein, The sealing cover plate is made of high-strength and low-noise alloy material.

Images