CN204610599U - A kind of chisel teeth coupling - Google Patents

Abstract

This utility model provides a wedge-shaped gear coupling, comprising two half-couplings (1). Each half-coupling (1) is a hollow cylindrical platform with at least two wedge-shaped teeth (2) distributed on its upper part. The lower part of the half-coupling (1) is provided with two through-hole positioning holes (3). These two positioning holes (3) are coaxial and have the same diameter. One half-coupling is fixedly installed on the driving shaft, and the other half-coupling is fixedly installed on the driven shaft. The two half-couplings transmit torque through the meshing of the wedge-shaped teeth on them. This can prevent the two half-couplings from loosening in the working state and can be easily separated in the non-working state for easy inspection and maintenance. No lubrication maintenance is required, and it can work continuously for a long time.

Description

A wedge gear coupling

technical field

The utility model relates to a shaft coupling.

Background technique

Couplings are mechanical parts used to connect two shafts (driving shaft and driven shaft) in different mechanisms to make them rotate together to transmit torque. The coupling consists of two halves, which are respectively connected to the driving shaft and the driven shaft. Generally, the power machine is mostly connected with the working machine by means of a coupling.

The gear coupling is one of the many types of couplings and it is widely used. Due to its small radial size and large bearing capacity, it is often used in shafting transmission under low-speed and heavy-duty conditions. There are two basic forms of gear couplings: internal and external gear combination and end face gear combination. The existing two types of couplings have the following disadvantages: the internal and external gear couplings are composed of internal and external gears with the same number of teeth, and the tooth surfaces of the internal and external teeth are periodically operated. Relative sliding in the axial direction will inevitably cause tooth surface wear and power loss. Therefore, the internal and external tooth couplings must work in a well-lubricated and sealed state, require frequent maintenance, and cannot work continuously for a long time, otherwise the coupling will be seriously affected The transmission torque efficiency and service life of the gear, and the sealed internal and external gear matching structure is not easy to disassemble, and it is inconvenient to inspect and maintain; the traditional structure of the end-face gear coupling is a straight tooth coupling, and the angular The compensation capability is extremely poor, and the allowable angular deviation between the driving shaft and the driven shaft is extremely small.

Utility model content

In view of the above shortcomings, the utility model provides a wedge-shaped tooth coupling, which has a simple structure, no need for lubrication maintenance, convenient disassembly, inspection and maintenance, continuous long-term operation, and greater angular compensation capability.

The utility model is realized through such a technical scheme: a wedge-shaped gear coupling, including two half-couplings, each half-coupling is a hollow cylindrical platform, and the upper part of the cylindrical platform is distributed at least 2 wedge-shaped teeth, each wedge-shaped tooth includes a straight cut surface and an inner beveled cut surface, and the inner beveled cut surface has a plurality of convex structures.

Further, the lower part of the half-coupling is provided with two through positioning circular holes.

Further, the two positioning circular holes at the lower part of the coupling half are coaxial and have the same diameter.

Due to the adoption of the above-mentioned structure, the wedge-shaped gear coupling provided by the utility model has one half-coupling fixedly installed on the driving shaft, one half-coupling fixedly installed on the driven shaft, and the two half-couplings pass through the The wedge-shaped teeth on the top and the protrusions on the inner slope cooperate with the connecting structure to transmit torque. This meshing structure can prevent the two half-couplings from loosening in the working state, and can conveniently connect the two halves in the non-working state. The two and a half couplings are separated for easy inspection and maintenance, without lubrication and maintenance, and can work continuously for a long time; setting the angle of the wedge teeth can make the coupling have a greater angular compensation capability.

Description of drawings

Figure 1 is a structural schematic diagram of the half-coupling of this case.

Figure 2 is a structural schematic diagram of the coupling of this case.

Detailed ways

In order to understand the purpose, technical solutions and beneficial effects of the utility model more clearly, the utility model will be further described below in conjunction with the accompanying drawings, but the protection scope of the utility model is not limited to the following examples.

As shown in Figures 1 and 2, a wedge-shaped gear coupling includes two half-couplings 1, each half-coupling 1 is a hollow cylindrical platform, and at least two are distributed on the upper part of the cylindrical platform. Wedge-shaped teeth 2, each wedge-shaped tooth 2 includes a straight cut surface 2-1 and an inner beveled cut surface 2-2, there are multiple convex structures on the inner beveled cut surface 2-2, the lower part of the half coupling 1 is set Two through positioning circular holes 3, the two positioning circular holes 3 are coaxial and have the same diameter.

When installing, put the two half-couplings 1 on the driving shaft and the driven shaft respectively, use screws to pass through the positioning round hole 3 and the positioning holes on the driving shaft and the driven shaft, fasten them with bolts, and then fasten the two The wedge-shaped teeth 2 on the half-coupling 1 are meshed to work.

This meshing matching structure can prevent the two half-couplings 1 from loosening in the working state, and can conveniently separate the two half-couplings 1 in the non-working state, which is convenient for inspection and maintenance, without lubrication and maintenance, and can be used for a long time Time continuous work; setting the angle of the wedge tooth 2 can make the coupling have a greater angular compensation capability.

The basic principles and main features of the present utility model and the advantages of the present utility model have been shown and described above. Those skilled in the art should understand that the utility model is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions only illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model The new model also has various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection required by the utility model is defined by the appended claims and their equivalents.

Claims (3)

1. A wedge-shaped gear coupling, characterized in that it contains two half-couplings (1) of the same structure, each half-coupling (1) is a hollow cylindrical platform, the cylindrical platform The upper part is provided with at least 2 wedge-shaped teeth (2), each wedge-shaped tooth (2) includes a straight cut surface (2-1) and an inner beveled cut surface (2-2), and the inner beveled cut surface (2-2) has Multiple raised structures. 2. The wedge-shaped tooth coupling according to claim 1, characterized in that, the lower part of each coupling half (1) is provided with two through positioning round holes (3). 3. The wedge tooth coupling according to claim 1, characterized in that, the two positioning circular holes (3) at the lower part of each coupling half (1) are coaxial and have the same diameter.