Reduction gear assembly

Abstract

The utility model provides a reduction gear assembly, and belongs to the technical field of gears. The problems that an existing gear is inconvenient to assemble and poor in heat dissipation effect are solved. The reduction gear assembly comprises a shell and a planet assembly arranged in the shell and connected with the shell, the shell comprises a main shell with an assembly cavity and a connecting plate connected with the main shell, and inner teeth matched with the planet assembly are arranged on the inner circumferential wall of the main shell. The planetary assembly comprises a main shaft connected with the connecting plate, a main tooth arranged on the main shaft and connected with the main shaft, an assembling plate connected with the main shell and a plurality of planetary teeth arranged on the assembling plate, the assembling plate and the planetary teeth are connected through a connecting unit, and a heat dissipation unit connected with the connecting unit is arranged on the connecting unit. The LED lamp has the advantages of being convenient to assemble and good in heat dissipation effect.

Description

TECHNICAL FIELD

[0001] The utility model belongs to gear technical field relates to a kind of reduction gear assemblies. BACKGROUND

[0002] The planetary gear box is also called gear box, and its structure is a mechanism in which multiple planetary gears rotate around a sun gear. It is also a mechanism that reduces the transmission ratio while proportionally increasing the motor torque. In actual use, due to the relatively high speed of the gears and the transmission structure located in a closed space, internal heat accumulation is easily caused, affecting the service life. Moreover, most parts of the planetary gear are in split structure, which makes the assembly relatively complicated, thus not meeting the use requirements. SUMMARY

[0003] The utility model aims at the above problems existing in prior art, provides a gear assembly that good heat dissipation effect and convenient assembly.

[0004] The utility model discloses a kind of reduction gear assemblies, including shell and the planetary assembly being set in shell and being connected with it, it is characterized in that, the shell includes the main shell with assembly cavity and the connecting plate being connected with main shell, and the inner peripheral wall of main shell is provided with the inner tooth matched with planetary assembly, the planetary assembly includes the main shaft being connected with connecting plate, the main tooth being set on main shaft and being connected with it, the assembly plate being connected with main shell and the several planetary teeth being set on assembly plate, and assembly plate and planetary tooth are connected by connecting unit, the connecting unit is provided with the heat dissipation unit being connected with it.

[0005] In the above-mentioned reduction gear assembly, the main shaft and the connecting plate are connected by a bearing, the connecting plate is provided with an axially outward protrusion on the end face at the main shaft, and the protrusion is hollow and provided with a mounting protrusion for mounting the bearing, and the outer end of the mounting protrusion is provided with a connecting flange connected thereto.

[0006] In the above-mentioned reduction gear assembly, the outer end face of the assembly plate is provided with a convex shaft portion protruding axially outward and connected with the main shell, and the convex shaft portion is also connected with the main shell by a bearing, and the end face of the convex shaft portion is provided with a weight-reducing hole.

[0007] In the above-mentioned reduction gear assembly, the end face of the planetary tooth is provided with a through hole axially penetrating the planetary tooth, and the outer peripheral wall of the planetary tooth is provided with an outer tooth.

[0008] In the above-mentioned speed reduction gear assembly, the connecting unit comprises a rotating bearing, and the assembly plate is provided with an installation protrusion protruding axially outward on the end face corresponding to the planetary gear, and the rotating bearing is installed on the installation protrusion, so that the planetary gear is connected with the main housing and the main gear.

[0009] In the above-mentioned speed reduction gear assembly, the assembly plate is provided with a plurality of lightening holes.

[0010] In the above-mentioned speed reduction gear assembly, the heat dissipation unit comprises an impeller connected with the installation protrusion.

[0011] Compared with the prior art, the speed reduction gear assembly has the advantages that the planetary assembly and the heat dissipation unit are arranged, so that the speed reduction gear assembly is convenient to assemble and has the heat dissipation effect. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 is a sectional view of the speed reduction gear assembly.

[0013] In the drawings, 1 is a main housing, 2 is a connecting plate, 3 is a main shaft, 4 is a main gear, 5 is a planetary gear, 6 is an assembly plate, and 7 is an impeller. DETAILED DESCRIPTION

[0014] The following is a specific embodiment of the utility model and further describes the technical scheme of the utility model in combination with the drawings, but the utility model is not limited to these embodiments.

[0015] For example, Figure 1As shown, the deceleration gear assembly comprises a housing and a planetary assembly arranged in and connected with the housing, the housing comprises a main housing 1 with an assembly cavity and a connecting plate 2 connected with the main housing 1, and an inner wall of the main housing 1 is provided with an inner tooth matched with the planetary assembly, the planetary assembly comprises a main shaft 3 connected with the connecting plate 2, a main tooth 4 arranged on and connected with the main shaft 3, an assembly plate 6 connected with the main housing 1 and a plurality of planetary teeth 5 arranged on the assembly plate 6, and the assembly plate 6 and the planetary teeth 5 are connected through a connecting unit, the connecting unit is provided with a heat dissipation unit connected therewith, the main shaft 3 is connected with the connecting plate 2 through a bearing, the connecting plate 2 is provided with an axially outward protrusion on an end face thereof at the main shaft 3, and the protrusion is hollow and provided with a mounting protrusion for mounting the bearing, an outer end of the mounting protrusion is provided with a connecting flange connected therewith, an outer end face of the assembly plate 6 is provided with a convex shaft portion protruding axially outward and connected with the main housing 1, the convex shaft portion is also connected with the main housing 1 through a bearing, an end face of the convex shaft portion is provided with a lightening hole, an end face of the planetary tooth 5 is provided with a through hole axially penetrating the planetary tooth 5, an outer wall of the planetary tooth 5 is provided with an outer tooth, the connecting unit comprises a rotating bearing, an end face of the assembly plate 6 at the corresponding planetary tooth 5 is provided with an axially outward protrusion and a mounting protrusion for mounting the rotating bearing, the mounting protrusion makes the planetary tooth 5 meshingly connected with the main housing 1 and the main tooth 4, and the heat dissipation unit comprises an impeller 7 connected with the mounting protrusion.

[0016] As a preferred structure, a plurality of lightening holes are arranged on the assembly plate 6.

[0017] The specific embodiments described herein merely exemplify the spirit of the present application. Those skilled in the art to which the present application belongs can make various modifications or supplements to the described specific embodiments or use similar ways to replace them, without departing from the spirit of the present application or exceeding the scope defined by the appended claims.

[0018] Although the terms are used more frequently herein, the possibility of using other terms is not excluded. The use of these terms is only for the convenience of describing and explaining the essence of the present application; any interpretation of them as any kind of additional limitation is contrary to the spirit of the present application.

Claims

1. A reduction gear assembly comprising a housing and a planetary assembly disposed within and connected to the housing, characterised in that, The shell comprises a main shell (1) with an assembly cavity and a connecting plate (2) connected with the main shell (1), and an inner periphery wall of the main shell (1) is provided with inner teeth matched with a planetary assembly.

2. A reduction gear assembly according to claim 1, wherein The main shaft (3) and the connecting plate (2) are connected through a bearing, an axial outward protrusion is arranged on an end surface of the connecting plate (2) at the main shaft (3), and the axial outward protrusion is hollow and provided with a mounting protrusion for mounting the bearing, and a connecting flange is arranged on an outer end of the mounting protrusion.

3. A reduction gear assembly according to claim 1, wherein An axial outward protruding convex shaft part is arranged on an outer end surface of the assembly plate (6), the convex shaft part is also connected with the main shell (1) through a bearing, and a weight-reducing hole is arranged on an end surface of the convex shaft part.

4. A reduction gear assembly according to claim 1, wherein An axial through hole penetrating the planetary tooth (5) is arranged on an end surface of the planetary tooth (5).

5. A reduction gear assembly according to claim 1, wherein The connecting unit comprises a rotating bearing, an axial outward protrusion is arranged on an end surface of the assembly plate (6) at a corresponding planetary tooth (5), and the axial outward protrusion is provided with a mounting protrusion for mounting the rotating bearing, and the mounting protrusion makes the planetary tooth (5) meshingly connected with the main shell (1) and the main tooth (4).

6. A reduction gear assembly according to claim 1, wherein A plurality of weight-reducing holes are arranged on the assembly plate (6).

7. A reduction gear assembly according to claim 5, wherein The heat dissipation unit comprises an impeller (7) connected with the mounting protrusion.

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