Sealing structure of input shaft system of new energy speed reducer

Abstract

The utility model relates to the technical field of sealing mechanisms of speed reducers, in particular to a sealing structure of an input shaft system of a new energy speed reducer, which comprises a motor input shaft system body, an input shaft system, a sealing mechanism and an output shaft system, and is characterized in that the motor input shaft system body comprises a motor shaft and an input gear sleeved outside the motor shaft; the sealing assembly is used for sealing a motor shaft and comprises an oil plug arranged in an inner hole of the input gear, an O-shaped ring arranged on the oil plug in a sleeving mode and a hole check ring arranged on the lower end face of the oil plug, the sealing assembly is beneficial for sealing the motor shaft, the motor shaft is sealed through the oil plug and the O-shaped ring, and the oil plug is fixed and limited through the check ring; lubricating oil cannot enter the outer spline of the motor shaft, the input oil seal is matched with the input gear to enable the whole input system shaft to be sealed, and through the effect of the sealing assembly, manufacturing errors of the motor shaft and input and output axis deviation generated by installation of a motor and a speed reducer cannot affect the input oil seal. Therefore, the matching of the input oil seal and the input gear has higher coaxial precision.

Description

Technical Field

[0001] The utility model belongs to the technical field of sealing mechanisms of reducers, and in particular relates to a sealing structure of an input shaft system of a new energy reducer. Background Art

[0002] Most of the existing new energy reducers' input shaft systems use oil seals to seal directly with the motor shaft to isolate the motor from the reducer lubricating oil. This type of seal has a simple structure and does not require other sealing parts, but the actual sealing effect depends on the matching accuracy of the motor shaft and the reducer input oil seal, and increases the risk of damage to the input oil seal lip during assembly. Therefore, a sealing structure for the input shaft system of a new energy reducer is needed to solve the above problems. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a sealing structure for the input shaft system of a new energy reducer to solve the problems in the existing market raised in the above background technology.

[0004] In order to achieve the above object, the technical solution of the utility model is as follows:

[0005] A sealing structure for an input shaft system of a new energy reducer, comprising:

[0006] The motor input shaft system body comprises a motor shaft and an input gear sleeved outside the motor shaft;

[0007] The sealing assembly is used for sealing the motor shaft, and comprises an oil plug installed in the inner hole of the input gear, an O-ring sleeved on the oil plug, and a hole retaining ring arranged on the lower end surface of the oil plug.

[0008] Through the above technical solution, the sealing assembly is beneficial to sealing the motor shaft, the oil plug and the O-ring seal the motor shaft, the retaining ring fixes and limits the oil plug, the lubricating oil cannot enter the external spline of the motor shaft, the input oil seal cooperates with the input gear to complete the sealing of the entire input system shaft, and through the effect of the sealing assembly, the manufacturing error of the motor shaft itself and the input-input axis deviation caused by the installation of the motor and the reducer cannot affect the input oil seal, so the cooperation between the input oil seal and the input gear has higher coaxial accuracy.

[0009] As a preferred solution of the utility model, the oil plug is cylindrical, and a groove is provided in the middle of the oil plug.

[0010] Through the above technical solution, the groove group surrounds the middle part of the outer side of the oil plug.

[0011] As a preferred solution of the present invention, the O-ring is sleeved on the groove.

[0012] As a preferred solution of the present utility model, the O-ring is made of rubber.

[0013] Through the above technical solution, the material of the O-ring is NBR nitrile rubber.

[0014] As a preferred solution of the utility model, an input oil seal is provided on the input gear, and the input oil seal is matched with the input gear.

[0015] As a preferred solution of the utility model, the oil plug is matched with the inner hole of the input gear.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The sealing assembly is beneficial to sealing the motor shaft. The oil plug and O-ring seal the motor shaft, and the retaining ring fixes the oil plug. The lubricating oil cannot enter the external spline of the motor shaft. The input oil seal cooperates with the input gear to complete the sealing of the entire input system shaft. Through the effect of the sealing assembly, the manufacturing error of the motor shaft itself and the input-input axis deviation caused by the installation of the motor and the reducer cannot affect the input oil seal, so the cooperation between the input oil seal and the input gear has a higher coaxial accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is a schematic diagram of the sealing structure of the input shaft system of the new energy reducer of the utility model;

[0020] Figure 2 For the utility model Figure 1 Schematic diagram of the sealing component structure. DETAILED DESCRIPTION

[0021] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] The utility model provides the following embodiments:

[0023] A sealing structure for an input shaft system of a new energy reducer, comprising: a motor input shaft system body 1, comprising a motor shaft 11, and an input gear 12 sleeved outside the motor shaft 11; a sealing assembly 2, used for sealing the motor shaft 11, comprising an oil plug 21 installed in the inner hole of the input gear 12, an O-ring sleeved on the oil plug 21, and a hole retaining ring 23 provided on the lower end surface of the oil plug 21, wherein the O-ring is made of rubber material, and the O-ring is made of NBR nitrile rubber. The sealing assembly 2 is beneficial to the motor shaft 11. The oil plug 21 and the O-ring seal the motor shaft 11, and the retaining ring fixes and limits the oil plug 21, so that the lubricating oil cannot enter the external spline of the motor shaft 11. The input oil seal 13 cooperates with the input gear 12 to complete the sealing of the entire input system shaft. Through the action of the sealing component 2, the manufacturing error of the motor shaft 11 itself and the input-input axis deviation caused by the installation of the motor and the reducer cannot affect the input oil seal 13, so the cooperation between the input oil seal 13 and the input gear 12 has a higher coaxial accuracy.

[0024] As a further improvement of the present invention, the oil plug 21 is cylindrical, a groove 211 is provided in the middle of the oil plug 21 , the groove 211 surrounds the middle of the outer side of the oil plug 21 , and an O-ring is sleeved on the groove 211 .

[0025] As a further improvement of the utility model, an input oil seal 13 is provided on the input gear 12 , and the input oil seal 13 is matched with the input gear 12 .

[0026] As a further improvement of the present invention, the oil plug 21 is matched with the inner hole of the input gear 12 .

[0027] The sealing component 2 is beneficial to sealing the motor shaft 11. The oil plug 21 and the O-ring seal the motor shaft 11. The retaining ring fixes and limits the oil plug 21. The lubricating oil cannot enter the external spline of the motor shaft 11. The input oil seal 13 cooperates with the input gear 12 to complete the sealing of the entire input system shaft. Through the action of the sealing component 2, the manufacturing error of the motor shaft 11 itself and the input-input axis deviation caused by the installation of the motor and the reducer cannot affect the input oil seal 13. Therefore, the cooperation between the input oil seal 13 and the input gear 12 has higher coaxial accuracy, can achieve good lubricating oil sealing and reduce assembly risks, reduce complex production processes and processes, and can better serve and develop the market.

[0028] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A sealing structure for the input shaft system of a new energy reducer, characterized in that ,include: A motor input shaft system body (1) comprises a motor shaft (11) and an input gear (12) sleeved outside the motor shaft (11); The sealing assembly (2) is used for sealing the motor shaft (11), and comprises an oil plug (21) installed in the inner hole of the input gear (12), an O-ring sleeved on the oil plug (21), and a hole retaining ring (23) provided on the lower end surface of the oil plug (21).

2. The sealing structure of the input shaft system of the new energy reducer according to claim 1 is characterized in that: The oil plug (21) is cylindrical, and a groove (211) is provided in the middle of the oil plug (21).

3. The sealing structure of the input shaft system of the new energy reducer according to claim 2 is characterized in that: The O-ring is sleeved on the groove (211).

4. The sealing structure of the input shaft system of the new energy reducer according to claim 3 is characterized in that: The O-ring is made of rubber.

5. The sealing structure of the input shaft system of the new energy reducer according to claim 4 is characterized in that: An input oil seal (13) is provided on the input gear (12), and the input oil seal (13) is matched with the input gear (12).

6. The sealing structure of the input shaft system of the new energy reducer according to claim 5 is characterized in that: The oil plug (21) is matched with the inner hole of the input gear (12).

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