Multi-sealing structure for speed reducer of new energy vehicle

Abstract

The utility model relates to the technical field of new energy vehicle speed reducer components, and discloses a new energy vehicle speed reducer multi-sealing structure which comprises a large gear ring, a small gear ring, a rubber flat gasket, an O-shaped ring, an end cover and a clamp spring, the small gear ring is arranged on the right side of the lower surface of the large gear ring, the rubber flat gasket is arranged on the right side face of the small gear ring, and the O-shaped ring is arranged on the end cover. And an O-shaped ring is embedded into the right side of the lower surface of the large gear ring. According to the multiple sealing structure of the new energy vehicle speed reducer, axial and radial two-way sealing is achieved through mutual matching of the rubber flat gasket and the O-shaped ring, double-sealing-piece sealing is achieved, and the multiple sealing structure is obvious in sealing effect, reliable in sealing structure, very high in quality level and obvious in competitive advantage in 1500N. M new energy non-road vehicle rotating speed reducers; the sealing structure is simple in structure, good in low-temperature and high-temperature resisting effect, convenient to produce and use and worthy of popularization due to the fact that the sealing structure can be well sealed under the condition that axial and radial acting force exists.

Description

TECHNICAL FIELD

[0001] The utility model relates to new energy vehicle speed reducer assembly technical field, concretely is a new energy vehicle speed reducer multiple sealing structure. BACKGROUND

[0002] The speed reducer used for new energy automobile is an independent component composed of gear transmission, worm transmission and gear-worm transmission closed in rigid shell, is often used as the speed reduction transmission device between prime mover and working machine, plays the role of matching rotating speed and transmitting torque between prime mover and working machine or executing mechanism, and is extremely widely used in modern machinery.

[0003] But the inside of the speed reducer used by part of the existing new energy automobile is basically sealed by a group of sealing structures, and the multiple sealing function is not easy to realize, which greatly reduces the sealing effect of the speed reducer when being used. UTILITY MODEL CONTENT

[0004] (I) technical problem solved

[0005] In view of the deficiencies of the prior art, the utility model provides a new energy vehicle speed reducer multiple sealing structure, which solves the problems raised in the above background technology.

[0006] (II) technical scheme

[0007] In order to achieve the above object, the utility model provides the following technical scheme: a new energy vehicle speed reducer multiple sealing structure, including big gear ring, small gear ring, rubber flat pad, O type ring, end cover and clamp spring, the right side of the lower surface of big gear ring is provided with small gear ring, the right side surface of small gear ring is provided with rubber flat pad, the right side of the lower surface of big gear ring is embedded with O type ring, the right side of the lower surface of big gear ring is provided with end cover, the end cover is below O type ring, the rubber flat pad is between small gear ring and end cover, the most right side of the lower surface of big gear ring is embedded with clamp spring, and the clamp spring is at the right side of end cover.

[0008] Preferably, the right side of the lower surface of the big gear ring is provided with a first sealing groove and a mounting groove.

[0009] Preferably, the right side surface of the small gear ring is provided with a second sealing groove, and the inner diameter of the second sealing groove is matched with the outer diameter of the rubber flat pad.

[0010] Preferably, the inner diameters of the first sealing groove and the mounting groove are matched with the outer diameters of the O type ring and the clamp spring respectively.

[0011] Preferably, the material of the clamp spring is silicon manganese spring steel.

[0012] (III) beneficial effects

[0013] Compared with the prior art, the new energy vehicle speed reducer multiple sealing structure has the following beneficial effects:

[0014] 1、The new energy vehicle speed reducer multiple sealing structure realizes bidirectional sealing of the axial direction and the radial direction through the cooperation between the rubber flat gasket and the O-shaped ring, realizes double sealing piece sealing, has obvious sealing effect in the 1500N.M new energy non-road vehicle rotary type speed reducer, the sealing structure is reliable, the quality level is very high, the competitive advantage is obvious, can be perfectly sealed under the action of the axial force and the radial force, has good low-temperature and high-temperature resistance, simultaneously, because the structure is relatively simple, therefore, the new energy vehicle speed reducer multiple sealing structure is convenient to produce and use and is worth popularizing. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is an overall structure assembly schematic view of the utility model;

[0016] Fig. 2 It is an overall structure exploded view of the utility model;

[0017] In the drawing: 1, big gear ring; 2, small gear ring; 3, rubber flat gasket; 4, O-shaped ring; 5, end cover; 6, clasp spring. DETAILED DESCRIPTION

[0018] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0019] Please refer to Figs. 1-2 The utility model provides a technical scheme: a new energy vehicle speed reducer multiple sealing structure, including big gear ring 1, small gear ring 2, rubber flat gasket 3, O-shaped ring 4, end cover 5 and clasp spring 6, the right side of big gear ring 1 lower surface is provided with small gear ring 2, the right side surface of small gear ring 2 is provided with rubber flat gasket 3, the right side of big gear ring 1 lower surface is embedded with O-shaped ring 4, the right side of big gear ring 1 lower surface is provided with end cover 5, and end cover 5 is below O-shaped ring 4, rubber flat gasket 3 is between small gear ring 2 and end cover 5, the rightmost side of big gear ring 1 lower surface is embedded with clasp spring 6, and clasp spring 6 is at the right side of end cover 5;

[0020] The big gear ring 1 is provided with a tooth structure for connecting inner and outer transmission; the small gear ring 2 cooperates with the big gear ring 1, and the right end surface of the small gear ring 2 cooperates with the end cover 5; the left side surface and the right side surface of the rubber flat gasket 3 are used in cooperation with the small gear ring 2 and the end cover 5 respectively, and the top of the rubber flat gasket 3 is used in cooperation with the big gear ring 1; the upper surface of the end cover 5 is used in cooperation with the O-shaped ring 4 installed in the inside of the big gear ring 1; and the top end of the clamping spring 6 is used in cooperation with the big gear ring 1.

[0021] After the above-mentioned components are assembled, the rubber flat gasket 3 and the O-shaped ring 4 realize bidirectional sealing in the axial and radial directions, realize double-seal sealing, and the sealing effect is obvious, the realization is easy, and the quality is reliable in the 1500N.M new energy non-road vehicle rotary type speed reducer.

[0022] In order to facilitate the installation of the O-shaped ring 4 and the clamping spring 6 in the later period, the first sealing groove and the mounting groove are arranged on the right side of the lower surface of the big gear ring 1, and the first sealing groove and the mounting groove are arranged, so as to facilitate the installation of the O-shaped ring 4 and the clamping spring 6 by the staff in the later period.

[0023] In order to facilitate the installation of the rubber flat gasket 3 between the small gear ring 2 and the end cover 5 by the staff, the second sealing groove is arranged on the right side surface of the small gear ring 2, the inner diameter of the second sealing groove is matched with the outer diameter of the rubber flat gasket 3, because the sizes are matched, the rubber flat gasket 3 is installed between the small gear ring 2 and the end cover 5 by the staff, and the installation is also ensured to be tight, and the sealing effect is further improved.

[0024] In order to facilitate the installation of the O-shaped ring 4 and the clamping spring 6 in the inside of the first sealing groove and the mounting groove respectively, the inner diameters of the first sealing groove and the mounting groove are matched with the outer diameters of the O-shaped ring 4 and the clamping spring 6 respectively, the O-shaped ring 4 and the clamping spring 6 are installed in the inside of the first sealing groove and the mounting groove respectively, and because the sizes of the first sealing groove and the O-shaped ring 4 are matched, the installation is more tight, and the sealing effect is further improved.

[0025] In order to prolong the service life of the clamping spring 6, the manufacturing material of the clamping spring 6 is silicon manganese spring steel, the spring made of silicon manganese spring steel has good fatigue resistance and good elasticity, the phenomenon of irreversible deformation and fracture of the spring after a period of time is prevented, and the service life of the clamping spring 6 is prolonged.

[0026] In use:

[0027] Preparation work, first, the first sealing groove is arranged on the right side of the lower surface of the big gear ring 1, and then the second sealing groove is arranged on the right side surface of the small gear ring 2;

[0028] When installing, the workers install the specified assembly process to assemble the device, in the process, the rubber flat pad 3 is installed in the inside of the second sealing groove, and is located at the inside of the small gear ring 2 and the end cover 5, meanwhile, the O-shaped ring 4 is installed in the inside of the first sealing groove, and is located at the inside of the big gear ring 1 and the end cover 5, so that the device realizes the bidirectional sealing of axial and radial because of the mutual cooperation between the rubber flat pad 3 and the O-shaped ring 4, and realizes the double sealing piece sealing.

[0029] The size and shape of all components in the structure are not specifically limited here, and need to be produced according to the actual situation.

[0030] In the description of the utility model, it needs to be explained that, unless there is definite stipulation and limitation, the terms "mounting", "connecting", "connecting" should be understood in a broad sense, for example, it can be fixed connection, also can be detachable connection, or integrally connected, can be mechanical connection, also can be electrical connection, can be directly connected, also can be indirectly connected through intermediate medium, can be the communication of two elements inside, for the ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood through specific circumstances.

[0031] Although the embodiments of the utility model have been shown and described, for the ordinary skilled in the art, it can be understood that the embodiments can be changed, modified, replaced and changed in many ways without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and its equivalents.

Claims

1. A multi-seal structure for a speed reducer in a new energy vehicle, comprising a large gear ring (1), a small gear ring (2), a rubber flat gasket (3), an O-ring (4), an end cap (5), and a retaining ring (6), characterized in that: A small gear ring (2) is provided on the right side of the lower surface of the large gear ring (1). A rubber flat pad (3) is provided on the right side of the small gear ring (2). An O-ring (4) is embedded on the right side of the lower surface of the large gear ring (1). An end cap (5) is provided on the right side of the lower surface of the large gear ring (1). The end cap (5) is located below the O-ring (4). The rubber flat pad (3) is located between the small gear ring (2) and the end cap (5). A retaining ring (6) is embedded on the far right side of the lower surface of the large gear ring (1). The retaining ring (6) is located on the right side of the end cap (5).

2. The multi-seal structure for a new energy vehicle reducer according to claim 1, characterized in that: The lower surface of the large gear ring (1) has a first sealing groove and an installation groove on the right side.

3. The multi-seal structure for a new energy vehicle reducer according to claim 1, characterized in that: The right side of the small toothed ring (2) has a second sealing groove, the inner diameter of which is matched with the outer diameter of the rubber flat gasket (3).

4. The multi-seal structure for a new energy vehicle reducer according to claim 2, characterized in that: The inner diameters of the first sealing groove and the mounting groove are adapted to the outer diameters of the O-ring (4) and the snap ring (6), respectively.

5. The multi-seal structure for a new energy vehicle reducer according to claim 1, characterized in that: The snap ring (6) is made of silicon manganese spring steel.

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