Differential gear with bearing

Abstract

The differential gear with the bearing comprises a fixing plate, the outer side of the fixing plate is sleeved with an outer gear, an inner bevel gear is fixedly installed in the middle of the fixing plate, the inner bevel gear is sleeved with the bearing, an outer end cover is fixedly installed on the outer side of the bearing, and the inner bevel gear is not in contact with the outer end cover. The number of the inner bevel gears is two corresponding to the number of the outer end covers, the outer side of the fixing plate is in threaded connection with a fixing bolt, and the end of the fixing bolt penetrates through the outer gear and is in threaded connection with the outer end cover on the other side. The bearing is arranged on the outer side of the inner bevel gear, and a hard connection mode between the inner bevel gear and the outer end cover is changed into a rotary connection mode, so that the inner wall of the outer end cover cannot be abraded by the rotation of the inner bevel gear, the differential speed is smoother, and the inner bevel gear is not in direct contact with the outer end cover. The inner bevel gear can be used without fine machining, the machining yield is improved, cost is greatly reduced, and economic benefits are improved.

Description

Technical Field

[0001] This utility model relates to the field of differential gear technology, specifically to differential gears with bearings. Background Technology

[0002] Currently, in the electric tricycle industry, the problem of abnormal noise in the whole vehicle is quite serious and difficult to completely solve. The main reason is that the connection precision between the differential and the rear axle half shaft is not high enough. With the current connection solution, it is difficult to guarantee that there is no abnormal noise. Therefore, a differential gear with bearing is proposed. Utility Model Content

[0003] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0004] Therefore, the technical solution adopted by this utility model is as follows:

[0005] A differential gear with bearings includes a fixed plate, an external gear sleeved on the outer side of the fixed plate, an internal bevel gear fixedly installed in the middle of the fixed plate, a bearing sleeved on the outer side of the internal bevel gear, and an outer end cover fixedly installed on the outer side of the bearing.

[0006] Preferably, the inner bevel gear does not contact the outer end cover, and the number of inner bevel gears is two corresponding to the number of outer end covers.

[0007] Preferably, the outer side of the fixing plate is threaded with a fixing bolt, and the end of the fixing bolt passes through the external gear and is threaded to the outer end cover on the other side.

[0008] Preferably, the inner diameter of the outer end cap is greater than the inner diameter of the inner bevel gear, and the outer end cap wraps around the outside of the inner bevel gear.

[0009] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows:

[0010] In this invention, by setting a bearing on the outside of the inner bevel gear, the hard connection between the inner bevel gear and the outer end cover is changed to a rotating connection. This prevents the rotation of the inner bevel gear from wearing down the inner wall of the outer end cover, making the differential speed smoother. Furthermore, since the inner bevel gear does not directly contact the outer end cover, it can be used without fine machining, improving the yield rate, significantly reducing costs, and increasing economic benefits. Attached Figure Description

[0011] Figure 1 This is a cross-sectional schematic diagram of one embodiment of the present invention.

[0012] Figure label:

[0013] 101. Fixing plate; 102. External gear; 103. Fixing bolt; 104. Internal bevel gear; 105. Bearing; 106. Outer end cover. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0015] The following describes some embodiments of the bearing-bearing differential gear provided by this utility model with reference to the accompanying drawings.

[0016] Example:

[0017] Combination Figure 1 As shown, the differential gear with bearing provided by this utility model includes a fixing plate 101. An external gear 102 is sleeved on the outer side of the fixing plate 101, and an internal bevel gear 104 is fixedly installed in the middle of the fixing plate 101. A bearing 105 is sleeved on the outer side of the internal bevel gear 104, and an outer end cover 106 is fixedly installed on the outer side of the bearing 105. The internal bevel gear 104 does not contact the outer end cover 106, and the number of internal bevel gears 104 is two corresponding to the number of outer end covers 106. A fixing bolt 103 is threadedly connected to the outer side of the fixing plate 101. The end of the fixing bolt 103 passes through the external gear 102 and is threadedly connected to the outer end cover 106 on the other side. The inner diameter of the outer end cover 106 is larger than the inner diameter of the internal bevel gear 104, and the outer end cover 106 wraps around the outer side of the internal bevel gear 104.

[0018] Specifically, the fixing bolts 103 are used to firmly fix the various structures together, so as to avoid the structure from loosening and disengaging, affecting the transmission and improving the reliability of the structure. At the same time, the installation method of separating the inner bevel gear 104 from the outer end cover 106 without contact is adopted, which effectively avoids the friction between the inner bevel gear 104 and the outer end cover 106 and reduces the mating clearance.

[0019] Therefore, this device effectively improves product quality without increasing costs, significantly enhances differential performance, eliminates abnormal noises, and effectively improves user comfort.

[0020] The working principle and usage process of this utility model are as follows: First, install the inner bevel gear 104 on both sides of the fixing plate 101. After the installation of the inner bevel gear 104 is completed, the bearing 105 is sleeved on the end of the inner bevel gear 104. After fixing, the outer end cover 106 is wrapped around the outside of the inner bevel gear 104, and the whole is fixed by fixing bolts 103. Finally, the inner bevel gear 104 is connected to the rear axle half shaft for use.

[0021] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A differential gear with bearings, including a mounting plate (101), characterized in that, An external gear (102) is sleeved on the outside of the fixing plate (101), and an internal bevel gear (104) is fixedly installed in the middle of the fixing plate (101). A bearing (105) is sleeved on the outside of the internal bevel gear (104), and an outer end cap (106) is fixedly installed on the outside of the bearing (105).

2. The bearing-equipped differential gear according to claim 1, characterized in that, The inner bevel gear (104) does not contact the outer end cover (106), and the number of inner bevel gears (104) is two of the number of outer end covers (106).

3. The bearing-equipped differential gear according to claim 1, characterized in that, The outer side of the fixing plate (101) is threaded with a fixing bolt (103), and the end of the fixing bolt (103) passes through the external gear (102) and is threaded to the outer end cover (106) on the other side.

4. The bearing-equipped differential gear according to claim 1, characterized in that, The inner diameter of the outer end cap (106) is greater than the inner diameter of the inner bevel gear (104), and the outer end cap (106) wraps around the outside of the inner bevel gear (104).

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