Novel wedge key connecting device

Abstract

The utility model relates to a novel wedge key connecting device which comprises a rotating piece (1) and a common wedge key (2), a dismounting hole (11) is formed in the rotating piece (1), a dismounting pin (12) is arranged in the dismounting hole (11), an inclined plane is arranged at the lower end of the dismounting pin (12), an inclined plane is arranged at the inner end of the common wedge key (2), the inclined plane of the dismounting pin (12) is in contact with the inclined plane of the common wedge key (2), and a sealing screw (13) is in threaded connection with the dismounting hole (11). The wedge key disassembling tool has the advantages that the wedge key disassembling tool is simple and novel in structure and practical in function, a common wedge key can be conveniently and quickly disassembled, and the working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of key connection technology, and specifically to a novel wedge key connection device. Background Technology

[0002] Keyed connections use keys to circumferentially fix a shaft and a rotating component to transmit motion and torque. Keyed connections can be classified into flat key connections, semi-circular key connections, wedge key connections, and tangential key connections. Wedge key connections involve driving a wedge-shaped key between the shaft and the rotating component to form a tight key connection, generating a large preload. During operation, torque is mainly transmitted through friction and can withstand axial forces in one direction.

[0003] Our company's mechanical equipment uses a common wedge key connection structure, where a common wedge key is driven between the shaft and the rotating parts to form a tight key connection, which is firm and provides stable transmission. However, when the shaft and rotating parts need to be disassembled for maintenance or replacement, the common wedge key is difficult to remove from between them. The existing disassembly method is to thread or weld a tie rod to the outer end of the common wedge key and apply tension to the tie rod for disassembly. However, in actual disassembly operations, due to the small outer end area of ​​the common wedge key and the thin threaded or welded tie rod, the tie rod is prone to breakage when pulling, making it impossible to remove the common wedge key smoothly and quickly. The pulling disassembly operation is time-consuming and laborious.

[0004] Therefore, designing and manufacturing an easy-to-disassemble and install common wedge key connection device to reduce the difficulty of disassembling common wedge keys and improve work efficiency is a very meaningful thing. Summary of the Invention

[0005] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a new type of wedge key connection device with a simple and novel structure and practical function. It can conveniently and quickly disassemble ordinary wedge keys and improve work efficiency.

[0006] The technical solution adopted by this utility model is: a novel wedge key connection device, including a rotating part 1 and a common wedge key 2. The rotating part 1 is provided with a disassembly hole 11, and a disassembly pin 12 is provided in the disassembly hole 11. The lower end of the disassembly pin 12 is provided with an inclined surface, and the inner end of the common wedge key 2 is provided with an inclined surface. The inclined surface of the disassembly pin 12 is in contact with the inclined surface of the common wedge key 2.

[0007] A further improvement is that a sealing screw 13 is threaded onto the disassembly hole 11, and the sealing screw 13 contacts the upper end of the disassembly pin 12.

[0008] Compared with the prior art, this utility model has the following advantages: it has a simple and novel structure, practical functions, and can conveniently and quickly disassemble ordinary wedge keys, thus improving work efficiency. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the structure of this utility model.

[0010] Figure 2 for Figure 1 The left view. Detailed Implementation

[0011] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0012] like Figure 1 and Figure 2 As shown, a novel wedge key connection device includes a rotating component 1 and a common wedge key 2. The rotating component 1 is mounted on a shaft, and the common wedge key 2 is mounted in a keyway between the rotating component 1 and the shaft. The rotating component 1 is provided with a disassembly hole 11, and a disassembly pin 12 is provided in the disassembly hole 11. The lower end of the disassembly pin 12 is provided with a bevel, and the inner end of the common wedge key 2 is provided with a bevel. The bevel of the disassembly pin 12 contacts the bevel of the common wedge key 2.

[0013] In order to prevent the disassembly pin 12 from being thrown off or lost during the rotation of the rotating part 1, the technical solution has been optimized and improved. A sealing screw 13 is threaded onto the disassembly hole 11, and the sealing screw 13 contacts the upper end of the disassembly pin 12.

[0014] When the rotating part 1 is in normal operation, the wedge key connection device acts as a key connection between the rotating part 1 and the shaft. When the rotating part 1 and the shaft need to be disassembled for maintenance or replacement, first unscrew the sealing screw 13 to expose the upper end of the disassembly pin 12. Use a tool to forcefully strike the disassembly pin 12 to make it move inward. Under the action of the inclined surface of the disassembly pin 12 contacting the inclined surface of the ordinary wedge key 2, the ordinary wedge key 2 will move outward, which can facilitate and quickly disassemble the ordinary wedge key 2.

[0015] However, this is not the only possibility. Any variations or substitutions conceived without inventive effort should be included within the scope of protection of this utility model. Therefore, the scope of protection of this utility model should be determined by the scope defined in the claims.

Claims

1. A novel wedge key connection device, comprising a rotating component (1) and a conventional wedge key (2), characterized in that, The rotating part (1) is provided with a disassembly hole (11), and a disassembly pin (12) is provided inside the disassembly hole (11). The lower end of the disassembly pin (12) is provided with a bevel, and the inner end of the ordinary wedge key (2) is provided with a bevel. The bevel of the disassembly pin (12) is in contact with the bevel of the ordinary wedge key (2).

2. The novel wedge key connection device according to claim 1, characterized in that, A sealing screw (13) is threaded onto the disassembly hole (11), and the sealing screw (13) contacts the upper end of the disassembly pin (12).

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