CN218863185U

CN218863185U - Split type main reduction gearbox

Info

Publication number: CN218863185U
Application number: CN202223516891.5U
Authority: CN
Inventors: 高福亮; 强晶
Original assignee: Wuxi Jinhua Auto Brake Co ltd
Current assignee: Wuxi Jinhua Auto Brake Co ltd
Priority date: 2022-12-28
Filing date: 2022-12-28
Publication date: 2023-04-14
Anticipated expiration: 2032-12-28

Abstract

The utility model relates to a split type main reducing gear box, split type main reducing gear box include the box and with the bottom that the box distal end is connected, the box is hollow structure, split type main reducing gear box still includes drive mechanism, drive mechanism is including rotatably setting up the driving gear of box near-end and rotatably setting up driven gear between box and the bottom, partly and the driven gear meshing of driving gear. The utility model discloses a split type owner subtracts box, through the semicircle orifice centre gripping bearing frame between box and the bottom with fixed drive mechanism, simple structure saves the extra part of installation, practices thrift the cost, simple structure, the installation effectiveness is high.

Description

Split type main reduction gearbox

Technical Field

The utility model relates to a main reducing gear box technical field especially relates to a split type main reducing gear box.

Background

The drive axle assembly is positioned at the tail end of a vehicle transmission system, and has the basic functions of increasing the torque transmitted by a transmission shaft, distributing the torque to the left and right driving wheels and enabling the left and right driving wheels to have a differential function; meanwhile, the drive axle is also subjected to vertical force, longitudinal force and moment acting on the road surface and the frame.

Referring to fig. 4, a vertical main reducer in an automobile drive axle in the prior art mainly includes a main reducer case, a bearing seat, and a driving gear and a driven gear engaged with each other. This structure has the following problems:

the connection surface of the box body and the bottom cover is too thin, the effective binding surface of the hole edge is extremely small, in addition, the bottom cover is mostly made of sheet metal parts, and the oil leakage probability of the connection part of the box body and the bottom cover is high

The mounting hole of the sleeve mounting surface on the front surface of the box body and the mounting hole of the connecting surface have different specifications, and the processing notch with weak wall thickness is easy to deform and break due to bearing stress

And (III) a gland for fixing the bearing needs to be additionally arranged in the box body, so that the use cost is high.

Therefore, a main reduction gearbox which is convenient to install, high in connection strength and low in cost needs to be designed.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned shortcomings of the prior art, it is an object of the present invention to provide a split main gearbox to solve one or more of the problems of the prior art.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

the utility model provides a split type main reduction box, split type main reduction box include the box and with the bottom of box distal end connection, the box is hollow structure, split type main reduction box still includes drive mechanism, drive mechanism includes rotatably set up the driving gear of box near-end and rotatably set up the driven gear between box and the bottom, a part and the driven gear meshing of driving gear.

Furthermore, two sides of the far end of the box body are respectively provided with a first semicircular hole, and two sides of the near end of the bottom cover are respectively provided with a second semicircular hole matched with the first semicircular hole.

Furthermore, a first groove is formed in the first semicircular hole, and a second groove is formed in the second semicircular hole.

Furthermore, the transmission mechanism further comprises at least two bearing seats, and the bearing seats are respectively clamped in the first groove and the second groove.

Furthermore, a rotating shaft is arranged at the center of the driven gear.

Furthermore, two ends of the rotating shaft are connected with the bearing seats through bearings.

Further, the far end of the box body is provided with a first flange face, and the near end of the bottom cover is provided with a second flange face matched with the first flange face.

Furthermore, a first mounting surface is further arranged on one side, close to the driving gear, of the far end of the box body, and a second mounting surface is further arranged on one side, close to the driving gear, of the near end of the bottom cover.

Furthermore, a third mounting surface is arranged on one side, close to the driving gear, of the near end of the box body.

Furthermore, a third hole for the driving gear to pass through is formed in the third mounting surface.

Compared with the prior art, the utility model discloses a beneficial technological effect as follows:

(one) the utility model discloses a split type owner subtracts box, through the semicircle orifice centre gripping bearing frame between box and the bottom with fixed drive mechanism, simple structure saves the installation extra part, practices thrift the cost, simple structure, the installation effectiveness is high.

Furthermore, the thickness of the connecting surface of the box body and the bottom cover is uniform, the specifications of the mounting holes are the same, the sealing performance is good, and the strength is high.

Drawings

Fig. 1 shows an axonometric view of a box body in a split type main reduction gearbox provided by the embodiment of the utility model.

Fig. 2 shows an axonometric view of a bottom cover in a split type main reduction gearbox provided by the embodiment of the invention.

Fig. 3 shows an axonometric view of a split type main reduction gearbox provided by the embodiment of the invention.

Fig. 4 shows a schematic structural diagram of a main reduction gearbox in the prior art.

In the drawings, the reference numbers:

1. a box body; 11. a first mounting surface; 111. a first semicircular hole; 1111. a first groove; 12. a first flange face; 13. a first cavity; 14. a third mounting surface; 141. a third aperture; 2. a bottom cover; 21. a second mounting surface; 211. a second semicircular hole; 2111. a second groove; 22. a second flange face; 23. a second cavity; 3. a transmission mechanism; 31. a driving gear; 32. a driven gear; 321. a rotating shaft; 33. a bearing seat; 331. and a bearing.

Detailed Description

To make the objects, features and advantages of the present invention more comprehensible, please refer to the attached drawings. It should be understood that the structure, proportion, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used for limiting the limitation of the implementation of the present invention, so that the present invention does not have the essential technical meaning, and any modification of the structure, change of the proportion relation or adjustment of the size should still fall within the scope that the technical content disclosed in the present invention can cover without affecting the function and the achievable purpose of the present invention.

In the description of the present invention, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like are defined to indicate an orientation or positional relationship based on that shown in the drawings, merely to facilitate the description of the present invention and to simplify the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

In order to describe the structure of the split main gearbox more clearly, the present invention defines the terms "distal end" and "proximal end", and specifically, taking fig. 1 as an example, the lower end of the box 1 in fig. 1 is the proximal end, and the upper end of the box 1 in fig. 1 is the distal end.

Example one

Referring to fig. 1, 2 and 3, the split type main reduction gearbox includes a box body 1 and a bottom cover 2 connected to a far end of the box body 1, the box body 1 is of a hollow structure, the split type main reduction gearbox further includes a transmission mechanism 3, the transmission mechanism 3 includes a driving gear 31 rotatably disposed at a near end of the box body 1 and a driven gear 32 rotatably disposed between the box body 1 and the bottom cover 2, and a part of the driving gear 31 is engaged with the driven gear 32.

The specific structures of the box 1, the bottom cover 2 and the transmission mechanism 3 are described as follows:

referring to fig. 1 and fig. 2, further, the box body 1 has a first cavity 13 for accommodating the transmission mechanism 3 therein, and the bottom cover 2 has a second cavity 23 for accommodating the transmission mechanism 3 therein.

Referring to fig. 1 and 2, further, two sides of the far end of the box body 1 are respectively provided with a first semicircular hole 111, two sides of the near end of the bottom cover 2 are respectively provided with a second semicircular hole 211 matched with the first semicircular hole 111, the first semicircular hole 111 and the second semicircular hole 211 have the same aperture and the same outer diameter of the bearing seat 33, and are spliced to form a circular hole for clamping the bearing seat 33.

Referring to fig. 1 and 2, further, a first groove 1111 is formed in the first semicircular hole 111, a second groove 2111 is formed in the second semicircular hole 211, and the outer edge of the bearing seat 33 is clamped into the first groove 1111 and the second groove 2111, so as to fix the bearing seat 33.

Referring to fig. 3, a rotating shaft 321 is further disposed at the center of the driven gear 32, and two ends of the rotating shaft 321 are connected to the bearing seat 33 through bearings 331.

Referring to fig. 1 and 2, further, a first flange surface 12 is provided at a far end of the case 1, a second flange surface 22 is provided at a near end of the bottom cover 2 to mate with the first flange surface 12, and the first flange surface 12 and the second flange surface 22 are fixed by bolts and nuts to connect the case 1 and the bottom cover 2.

Referring to fig. 1, further, a first mounting surface 11 is further disposed on a side of the far end of the box 1 close to the driving gear 31, a second mounting surface 21 is further disposed on a side of the near end of the bottom cover 2 close to the driving gear 31, and the first mounting surface 11 and the second mounting surface 21 are spliced to form a completed mounting surface.

Referring to fig. 1, further, a third mounting surface 14 is further disposed on a side of the proximal end of the housing 1 near the driving gear 31.

Referring to fig. 1, further, the third mounting surface 14 is provided with a third hole 141 for the driving gear 31 to pass through.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations and modifications can be made, which all fall within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A split type main reduction gearbox is characterized in that: the split type main reduction gearbox comprises a box body and a bottom cover connected with the far end of the box body, the box body is of a hollow structure, the split type main reduction gearbox further comprises a transmission mechanism, the transmission mechanism comprises a driving gear and a driven gear, the driving gear is rotatably arranged at the near end of the box body, the driven gear is rotatably arranged between the box body and the bottom cover, and one part of the driving gear is meshed with the driven gear.

2. A split main reduction gearbox according to claim 1, wherein: and two sides of the far end of the box body are respectively provided with a first semicircular hole, and two sides of the near end of the bottom cover are respectively provided with a second semicircular hole matched with the first semicircular hole.

3. A split main reduction gearbox according to claim 2, wherein: a first groove is formed in the first semicircular hole, and a second groove is formed in the second semicircular hole.

4. A split main gearbox according to claim 3, characterised in that: the transmission mechanism further comprises at least two bearing seats, and the bearing seats are respectively clamped in the first groove and the second groove.

5. A split main gearbox according to claim 4, characterised in that: and a rotating shaft is arranged at the center of the driven gear.

6. A split main gearbox according to claim 5, characterised in that: and two ends of the rotating shaft are connected with the bearing seats through bearings.

7. A split main gearbox according to claim 1, characterised in that: the far end of the box body is provided with a first flange surface, and the near end of the bottom cover is provided with a second flange surface matched with the first flange surface.

8. A split main gearbox according to claim 1, characterised in that: the far end of the box body is close to one side of the driving gear and is further provided with a first mounting surface, and the near end of the bottom cover is close to one side of the driving gear and is further provided with a second mounting surface.

9. A split main gearbox according to claim 1, characterised in that: and a third mounting surface is further arranged on one side of the near end of the box body, which is close to the driving gear.

10. A split main gearbox according to claim 9 wherein: and a third hole for the driving gear to pass through is formed in the third mounting surface.