Gear box with high damping performance

Abstract

The utility model relates to the technical field of transmission cases, in particular to a gearbox with high damping performance, which comprises an input flange and a secondary gear ring, and a first deep groove ball bearing, a second deep groove ball bearing and an elastic metal framework oil seal are respectively arranged on the assembly surfaces of the input flange and the secondary gear ring from inside to outside. According to the gearbox with the high damping performance, the first deep groove ball bearing, the second deep groove ball bearing and the elastic metal framework oil seal are arranged on the assembly face of the input flange and the assembly face of the second-stage gear ring respectively, and the damping performance of the assembly face of the first deep groove ball bearing and the damping performance of the assembly face of the second deep groove ball bearing are improved through the embedded rubber damping rings; therefore, the transmission noise is reduced; the inner damping ring of a hollow structure is arranged on the inner side face of the elastic metal framework oil seal, and the inner side sealing performance and elasticity of the elastic metal framework oil seal can be guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of transmission box technology, and in particular to a high shock-absorbing gearbox. Background Technology

[0002] Gearboxes are important transmission devices. Through the meshing of gear pairs installed inside, they can increase or decrease the speed of the input shaft to meet the speed requirements of different operating conditions. They can also adjust the torque of the output shaft by changing the speed.

[0003] Existing gearboxes have simple structures. In order to improve their adaptability to installation space, the structure is relatively compact. Most structural components adopt rigid connection methods, and the vibration damping of the assembly surface is very limited, resulting in large vibrations during transmission and poor sealing. Utility Model Content

[0004] The technical problem to be solved by this utility model is that: most existing gearboxes adopt a rigid connection method, and the shock absorption of the assembly surface is very limited, resulting in large vibration during transmission and poor sealing.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a high-damping gearbox, including an input flange and a secondary gear ring. The input flange and the secondary gear ring are respectively provided with a first deep groove ball bearing, a second deep groove ball bearing and an elastic metal skeleton oil seal from the inside to the outside. A rear cover is installed at the opening position on the back of the secondary gear ring. Embedded rubber damping rings that cooperate with the first deep groove ball bearing and the second deep groove ball bearing are installed on the outer side of the input flange and the inner side of the secondary gear ring.

[0006] The inner surface of the elastic metal skeleton oil seal is provided with a hollow internal shock-absorbing ring.

[0007] An annular assembly groove is provided on the outer side of the input flange corresponding to the position of the elastic metal skeleton oil seal, and an annular limiting frame with an integral structure is provided on the inner arc surface of the annular assembly groove.

[0008] The elastic metal skeleton oil seal has an inclined limiting groove on the end face near the input flange. The elastic metal skeleton oil seal is connected to the input flange by being sleeved on the outside of the annular limiting frame through the inclined limiting groove.

[0009] The inner surface of the elastic metal skeleton oil seal is provided with an arc-shaped mounting groove that matches the internal shock-absorbing ring.

[0010] Both the first and second deep groove ball bearings have annular limiting grooves on their assembly surfaces with the embedded rubber damping ring.

[0011] The beneficial effects of this utility model are:

[0012] (1) The high vibration damping gearbox of this utility model is provided with a first deep groove ball bearing, a second deep groove ball bearing and an elastic metal skeleton oil seal respectively on the input flange and the secondary gear ring assembly surface. The vibration damping of the first deep groove ball bearing and the second deep groove ball bearing assembly surface is improved by embedded rubber damping ring, thereby reducing transmission noise;

[0013] (2) A hollow internal shock-absorbing ring is provided on the inner side of the elastic metal skeleton oil seal to ensure the inner sealing and elasticity of the elastic metal skeleton oil seal.

[0014] (3) The entire device adopts a split and detachable design, which facilitates later maintenance and replacement and reduces the cost of use. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Figure 2 This is a partial schematic diagram of the present invention. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] Figure 1 and Figure 2 The high-damping gearbox shown includes an input flange 1 and a secondary gear ring 2. From the inside to the outside, the mounting surfaces of the input flange 1 and the secondary gear ring 2 are respectively provided with a first deep groove ball bearing 3, a second deep groove ball bearing 4, and an elastic metal skeleton oil seal 5. A rear cover 6 is installed at the opening on the back of the secondary gear ring 2. Embedded rubber damping rings 7 that mate with the first deep groove ball bearing 3 and the second deep groove ball bearing 4 are installed on the outer side of the input flange 1 and the inner side of the mounting surface of the secondary gear ring 2.

[0021] To improve the elastic reset effect and facilitate replacement, the inner side of the elastic metal skeleton oil seal 5 is provided with a hollow internal shock-absorbing ring 8.

[0022] For installation of the limit, an annular assembly groove is provided on the outer side of the input flange 1 at the position corresponding to the elastic metal skeleton oil seal 5, and an annular limit frame 9 with an integral structure is provided on the inner arc surface of the annular assembly groove.

[0023] To enhance assembly limiting capability, the elastic metal skeleton oil seal 5 has an inclined limiting groove on the end face near the input flange 1. The elastic metal skeleton oil seal 5 is connected to the input flange 1 by fitting around the annular limiting frame 9 through the inclined limiting groove.

[0024] To ensure stability during internal installation, the inner side of the elastic metal skeleton oil seal 5 is provided with an arc-shaped mounting groove 10 that matches the internal shock-absorbing ring 8.

[0025] To improve assembly stability, both the first deep groove ball bearing 3 and the second deep groove ball bearing 4 have annular limiting grooves 11 on their assembly surfaces with the embedded rubber damping ring 7.

[0026] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A high-damping gearbox, comprising an input flange (1) and a secondary gear ring (2), characterized in that: The input flange (1) and the secondary gear ring (2) are respectively provided with a first deep groove ball bearing (3), a second deep groove ball bearing (4) and an elastic metal skeleton oil seal (5) from the inside to the outside. A back cover (6) is installed at the opening position on the back of the secondary gear ring (2). An embedded rubber damping ring (7) that cooperates with the first deep groove ball bearing (3) and the second deep groove ball bearing (4) is installed on the outer side of the input flange (1) and the inner side of the secondary gear ring (2).

2. The high-damping gearbox according to claim 1, characterized in that: The inner side of the elastic metal skeleton oil seal (5) is provided with a hollow internal shock-absorbing ring (8).

3. The high-vibration-damping gearbox according to claim 1, characterized in that: An annular assembly groove is provided on the outer side of the input flange (1) at the position of the elastic metal skeleton oil seal (5), and an annular limiting frame (9) with an integral structure is provided on the inner arc surface of the annular assembly groove.

4. A high-damping gearbox according to claim 3, characterized in that: The elastic metal skeleton oil seal (5) has an inclined limiting groove on the end face near the input flange (1). The elastic metal skeleton oil seal (5) is connected to the input flange (1) by being sleeved on the outside of the annular limiting frame (9) through the inclined limiting groove.

5. A high-damping gearbox according to claim 2, characterized in that: The inner side of the elastic metal skeleton oil seal (5) is provided with an arc-shaped mounting groove (10) that matches the internal shock-absorbing ring (8).

6. A high-vibration-damping gearbox according to claim 1, characterized in that: Both the first deep groove ball bearing (3) and the second deep groove ball bearing (4) have annular limiting grooves (11) on their assembly surfaces with the embedded rubber damping ring (7).

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