High strength gear coupling

Abstract

The utility model relates to a high strength gear coupling belongs to coal mine underground fully mechanized coal face conveyor technical field, the traditional gear coupling axial position limiting through the set screw, because the two half shaft couplings eccentricity causes the axial force to be bigger when actually working, so lead to the set screw frequent damage, seriously influence the normal work of conveyor, a high strength gear coupling of the utility model embodiment, by the inner tooth ring A, inner tooth ring B, half shaft coupler A, half shaft coupler B, the pressing plate is composed. The inner tooth of inner tooth ring A and the outer tooth of half shaft coupler A engage, the inner tooth of inner tooth ring B and the outer tooth of half shaft coupler B engage, inner tooth ring A and inner tooth ring B are positioned through the locating pin and bolt coupling, and inner tooth ring A, inner tooth ring B respectively through surface A, surface B carry out axial positioning and prevent its shift to transmit the torque. The utility model has the advantages of simple structure, compact, high axial position limiting strength, long service life.

Description

Technical Field

[0001] This utility model relates to the technical field of conveyors in fully mechanized coal mining faces, specifically a high-strength gear coupling. Background Technology

[0002] A gear coupling consists of two half-couplings and an internal gear ring. Torque transmission between the two half-couplings is achieved through the meshing of the internal and external gears. Each half-coupling connects to a different rotating shaft, thus transmitting torque between the two drive shafts. Gear couplings are widely used in coal mine underground fully mechanized mining face conveyor technology due to their compact structure, high load-bearing capacity, wide operating speed range, and reliable operation. To limit the lateral movement of the internal gear ring, three locating screws are typically placed in the middle of the internal gear ring, positioned between the two half-couplings. However, since the two connected shafts cannot be perfectly concentric, significant axial forces are generated during operation. These forces frequently shear off the locating screws, severely impacting the normal operation of the conveyor, increasing the maintenance workload for workers, and reducing work efficiency. Summary of the Invention

[0003] In view of this, the purpose of this utility model is to provide a high-strength gear coupling that changes the traditional point contact limiting to a surface contact limiting, thereby improving the axial limiting strength and extending the service life.

[0004] The technical solution adopted in this utility model is as follows: it includes a half coupling A1, a half coupling B5, an internal gear ring A3, an internal gear ring B4, and a pressure plate 2; the half coupling A1 is connected to the sprocket A by a spline, and the pressure plate 2 is connected to the sprocket A by bolts, thus fixing the half coupling A1 to the sprocket A; the half coupling B5 is connected to the reducer C by a spline, and is also connected and fixed to the reducer C by bolts.

[0005] Furthermore, the internal gear ring A3 is provided with a face A31, an internal tooth A32, a pin hole 33, and several bolt holes, and the internal gear ring B4 is provided with a positioning pin 41, an internal tooth B42, a face B43, and several bolt holes; the external teeth of the half coupling A1 and the half coupling B5 respectively mesh with the internal teeth A32 and B42, and the internal gear ring A3 is positioned and connected to the internal gear ring B4 through the positioning pin 41 and bolts, and the axial movement of the half coupling A1 and the half coupling B5 is restricted by the face A31 and the face B43.

[0006] This utility model relates to a high-strength gear coupling, which is ingeniously designed and has a simple and compact structure. It changes the traditional point contact limiting to a surface contact limiting, thereby improving the axial limiting strength and extending the service life.

[0007] The technical solution of the present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the installation of the gear coupling of this utility model; Figure 2 This is a schematic diagram of the internal gear ring A structure of this utility model; Figure 3 This is a schematic diagram of the internal gear ring B structure of this utility model; Figure 4 This is a schematic diagram of the traditional gear coupling B structure; In the diagram: 1. Half-coupling A; 2. Pressure plate; 3. Internal gear ring A; 31. Face A; 32. Internal gear A; 33. Pin hole; 4. Internal gear ring B; 41. Locating pin; 42. Internal gear B; 43. Face B; 5. Half-coupling B; A. Sprocket; B. Traditional gear coupling. Detailed Implementation

[0009] The specific embodiments of this utility model are described in detail below with reference to the accompanying drawings: like Figures 1-4 As shown, this utility model discloses a high-strength gear coupling, comprising a half-coupling A1, a half-coupling B5, an internal gear ring A3, an internal gear ring B4, and a pressure plate 2; the half-coupling A1 is connected to the sprocket A via a spline, and the pressure plate 2 is connected to the sprocket A via bolts, thus fixing the half-coupling A1 to the sprocket A; the half-coupling B5 is connected to the reducer C via a spline and is also fixed to the reducer C via bolts.

[0010] In this embodiment, the internal gear ring A3 is provided with a surface A31, an internal tooth A32, a pin hole 33, and several bolt holes; the internal gear ring B4 is provided with a positioning pin 41, an internal tooth B42, a surface B43, and several bolt holes; the external teeth of the half-coupling A1 and the half-coupling B5 respectively mesh with the internal teeth A32 and B42; the internal gear ring A3 is positioned and connected to the internal gear ring B4 by the positioning pin 41 and bolts; and the axial movement of the half-coupling A1 and the half-coupling B5 is restricted by the surface A31 and the surface B43.

[0011] The above detailed description of the technical solution of this utility model with reference to preferred embodiments is illustrative and not a limitation in form. Those skilled in the art, based on reading this utility model specification, can modify the technical solutions described in the embodiments or make equivalent substitutions for some of the technical features, and such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

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