Split type journal sticking device

Abstract

The utility model discloses a split type journal sticking device which comprises an outer sleeve assembly, a middle sleeve assembly and an inner sleeve assembly, the outer sleeve assembly, the middle sleeve assembly and the inner sleeve assembly are all of split type structures, and two outer conical surfaces are symmetrically arranged on the outer side of the inner sleeve assembly. An annular wedge-shaped space is formed between the inner side of the outer sleeve assembly and the outer conical surface on the outer side of the inner sleeve assembly, the middle sleeve assembly is arranged in the annular wedge-shaped space, and an inner conical surface matched with the outer conical surface is arranged on the inner side of the middle sleeve assembly; and a pushing mechanism is arranged between one end of the middle sleeve assembly and the outer sleeve assembly. The middle sleeve assembly is pushed to move through the pushing mechanism, huge radial pressure is applied to the inner sleeve assembly under the action of the outer conical surface and the inner conical surface, the inner sleeve assembly firmly holds the transmission shaft under the huge radial pressure, and compared with a traditional bolt fastening mode, the clamping force is greatly improved, and the transmission shaft can be firmly clamped. The problem that the shaft sticking device and the transmission shaft are prone to slipping is effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of shaft clamping, and particularly relates to a split-type shaft clamping device. Background Art

[0002] On the transmission shaft of a ship, a shaft clamping device (shaft holding device) needs to be installed to connect with other devices (such as shaft-driven generators, etc.) and play a role in torque transmission. The traditional shaft clamping device usually locks the clamping sleeve and the transmission shaft by tightening the bolts on the clamping sleeve. This clamping method has the following disadvantages: the locking effect between the clamping sleeve and the transmission shaft is not ideal, and when transmitting a large torque, slipping is likely to occur between the clamping sleeve and the transmission shaft. Summary of the Invention

[0003] The purpose of the utility model is to solve the deficiencies in the prior art and provide a split-type shaft clamping device.

[0004] The purpose of the utility model is achieved by the following technical solutions: a split-type shaft clamping device includes an outer sleeve assembly, an intermediate sleeve assembly, and an inner sleeve assembly. The outer sleeve assembly, the intermediate sleeve assembly, and the inner sleeve assembly are all of split-type structures. Two outer conical surfaces are symmetrically arranged on the outer side of the inner sleeve assembly. An annular wedge-shaped space is formed between the inner side of the outer sleeve assembly and the outer conical surfaces on the outer side of the inner sleeve assembly. The intermediate sleeve assembly is arranged in the annular wedge-shaped space, and an inner conical surface matching the outer conical surface is provided on the inner side of the intermediate sleeve assembly; a pushing mechanism is provided between one end of the intermediate sleeve assembly and the outer sleeve assembly; the pushing mechanism is used to push the intermediate sleeve assembly to move so as to apply radial pressure to the inner sleeve assembly.

[0005] Preferably, the pushing mechanism includes a pushing bolt, a threaded hole arranged at the end of the outer sleeve assembly, and a second bolt hole arranged at one end of the intermediate sleeve assembly. The threaded hole is arranged along the axial direction of the outer sleeve assembly; the pushing bolt passes through the second bolt hole on the intermediate sleeve assembly and is connected to the threaded hole on the outer sleeve assembly.

[0006] Preferably, the outer sleeve assembly includes two outer sleeve split bodies, and the two outer sleeve split bodies are connected by connecting bolts.

[0007] Preferably, the outer sleeve split body includes an outer sleeve split body main body, a first flange portion is provided on the outer sleeve split body main body, and a first bolt hole is provided on the first flange portion; the threaded hole is arranged on the end face of the outer sleeve split body main body.

[0008] Preferably, the intermediate sleeve assembly is composed of two intermediate sleeve split bodies. The intermediate sleeve split body includes an intermediate sleeve split body main body, a second flange portion is provided at one end of the intermediate sleeve split body main body, and the second bolt hole is arranged on the second flange portion.

[0009] Preferably, the inner sleeve assembly is composed of two inner sleeve split bodies.

[0010] Preferably, the taper of the outer conical surface is 2-3 degrees.

[0011] The beneficial effects of the present utility model are as follows:

[0012] 1. In the present utility model, the outer sleeve assembly, the intermediate sleeve assembly and the inner sleeve assembly are all split structures. The design of this split structure greatly facilitates the installation and disassembly of the outer sleeve assembly, the intermediate sleeve assembly and the inner sleeve assembly.

[0013] 2. The present utility model pushes the intermediate sleeve assembly to move through a pushing mechanism, and applies a huge radial pressure to the inner sleeve assembly under the action of the outer conical surface and the inner conical surface. Under the huge radial pressure, the inner sleeve assembly firmly holds the transmission shaft. Compared with the traditional method of fastening with bolts, the holding force of the present utility model is greatly improved, effectively avoiding the problem of easy slippage between the shaft holding device and the transmission shaft, and improving the reliability of the connection of the shaft holding device. Description of the Drawings

[0014] Figure 1 It is a schematic structural diagram of the present utility model.

[0015] Figure 2 It is a schematic structural diagram of the outer sleeve assembly.

[0016] Figure 3 It is a schematic structural diagram of the intermediate sleeve assembly.

[0017] Figure 4 It is a schematic structural diagram of the inner sleeve assembly.

[0018] Figure 5 It is a cross-sectional view of the present utility model.

[0019] In the figure: 1. Outer sleeve assembly, 1-1. Outer sleeve split body, 1-1a. Outer sleeve split body main body, 1-1b. First flange part, 1-1c. First bolt hole, 1-1d. Threaded hole, 1-2. Connecting bolt, 2. Intermediate sleeve assembly, 2-1. Intermediate sleeve split body, 2-1a. Intermediate sleeve split body main body, 2-1b. Second flange part, 2-1c. Second bolt hole, 3. Inner sleeve assembly, 3-1. Inner sleeve split body, 4. Pushing bolt. Detailed Embodiments

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present utility model.

[0021] AsFigures 1 to 5 As shown in the figure, a split type axle housing device includes an outer sleeve assembly 1, an intermediate sleeve assembly 2 and an inner sleeve assembly 3. The outer sleeve assembly 1, the intermediate sleeve assembly 2 and the inner sleeve assembly 3 are all of split type structures. Two outer conical surfaces are symmetrically arranged on the outer side of the inner sleeve assembly 3. An annular wedge-shaped space is formed between the inner side of the outer sleeve assembly 1 and the outer conical surfaces on the outer side of the inner sleeve assembly 3. The intermediate sleeve assembly 2 is arranged in the annular wedge-shaped space, and an inner conical surface matching the outer conical surface is provided on the inner side of the intermediate sleeve assembly 2; A pushing mechanism is provided between one end of the intermediate sleeve assembly 2 and the outer sleeve assembly 1; The pushing mechanism is used to push the intermediate sleeve assembly 2 to move so as to apply radial pressure to the inner sleeve assembly 3.

[0022] In the present utility model, the outer sleeve assembly 1, the intermediate sleeve assembly 2 and the inner sleeve assembly 3 are all of split type structures. The design of this split type structure greatly facilitates the installation and disassembly of the outer sleeve assembly 1, the intermediate sleeve assembly 2 and the inner sleeve assembly 3. The two outer conical surfaces are symmetrically arranged on both sides of the inner sleeve assembly 3. The taper of the two outer conical surfaces is opposite, and the diameter of the outer conical surface near the middle end of the inner sleeve assembly 3 is larger than that of the other end. During installation, first sleeved the inner sleeve assembly 3 onto the transmission shaft, then installed the two intermediate sleeve assemblies 2 on the outer side of the inner sleeve assembly 3, and the inner conical surfaces on the two intermediate sleeve assemblies 2 are respectively in contact with the two outer conical surfaces on the outer side of the inner sleeve assembly 3; Then install the outer sleeve assembly 1 on the outer side of the intermediate sleeve assembly 2, and push the intermediate sleeve assembly 2 to move through the pushing mechanism. Under the action of the outer conical surface and the inner conical surface, a huge radial pressure is applied to the inner sleeve assembly 3. Under the huge radial pressure, the inner sleeve assembly 3 tightly holds the transmission shaft. Compared with the traditional method of fastening by bolts, the holding force of the present utility model is greatly improved, effectively avoiding the problem that it is easy to slip between the axle housing device and the transmission shaft, and improving the reliability of the connection of the axle housing device.

[0023] Among them, the pushing mechanism includes a pushing bolt 4, a threaded hole 1-1d arranged at the end of the outer sleeve assembly 1, and a second bolt hole 2-1c arranged at one end of the intermediate sleeve assembly 2. The threaded hole 1-1d is arranged along the axial direction of the outer sleeve assembly 1; The pushing bolt 4 passes through the second bolt hole 2-1c on the intermediate sleeve assembly 2 and is connected to the threaded hole 1-1d on the outer sleeve assembly 1. By rotating the pushing bolt 4, the pushing bolt 4 moves along the axial direction of the outer sleeve assembly 1, and drives the intermediate sleeve assembly 2 to move towards the middle of the outer sleeve assembly 1 to realize the locking between the axle housing device and the transmission shaft.

[0024] The outer sleeve assembly 1 includes two outer sleeve split bodies 1-1, and the two outer sleeve split bodies 1-1 are connected by a connecting bolt 1-2. After the two outer sleeve split bodies 1-1 are connected by the connecting bolt 1-2, a cylindrical structure is formed.

[0025] Among them, the jacket split body 1-1 includes a jacket split body main body 1-1a. A first flange portion 1-1b is provided on the jacket split body main body 1-1a, and first bolt holes 1-1c are provided on the first flange portion 1-1b. A threaded hole 1-1d is provided on the end face of the jacket split body main body 1-1a. In this embodiment, the threaded holes 1-1d are distributed on the end face of the jacket split body main body 1-1a in a circular array.

[0026] The intermediate sleeve assembly 2 is composed of two intermediate sleeve split bodies 2-1, and the two intermediate sleeve split bodies 2-1 are combined to form a cylindrical structure. The intermediate sleeve split body 2-1 includes an intermediate sleeve split body main body 2-1a. A second flange portion 2-1b is provided at one end of the intermediate sleeve split body main body 2-1a, and second bolt holes 2-1c are provided on the second flange portion 2-1b. The second bolt holes 2-1c on the second flange portion 2-1b correspond to the threaded holes 1-1d on the jacket split body main body 1-1a one by one.

[0027] The inner sleeve assembly 3 is composed of two inner sleeve split bodies 3-1. The two inner sleeve split bodies 3-1 are combined to form a tubular structure.

[0028] In this embodiment, the taper of the outer conical surface is 2-3 degrees. Similarly, the taper of the inner conical surface is also 2-3 degrees.

[0029] The present utility model is not limited to the above-mentioned optimal implementation manner. Any person can obtain other various forms of products under the inspiration of the present utility model. However, no matter what changes are made in its shape or structure, as long as it has a technical solution that is the same as or similar to the present application, it falls within the protection scope of the present utility model.

Claims

1. A split-flap shaft holding device, characterized in that: The utility model comprises an outer sleeve assembly, an intermediate sleeve assembly and an inner sleeve assembly. The outer sleeve assembly, the intermediate sleeve assembly and the inner sleeve assembly are all of a petal-type structure. Two outer conical surfaces are symmetrically arranged on the outer side of the inner sleeve assembly. An annular wedge-shaped space is formed between the inner side of the outer sleeve assembly and the outer conical surfaces on the outer side of the inner sleeve assembly. The intermediate sleeve assembly is arranged in the annular wedge-shaped space. An inner conical surface matching the outer conical surface is arranged on the inner side of the intermediate sleeve assembly. A pushing mechanism is arranged between one end of the intermediate sleeve assembly and the outer sleeve assembly. The pushing mechanism is used to push the intermediate sleeve assembly to move so as to apply radial pressure to the inner sleeve assembly.

2. A split-flap shaft holding device according to claim 1, characterized in that: The pushing mechanism includes a pushing bolt, a threaded hole arranged at the end of the outer sleeve assembly, and a second bolt hole arranged at one end of the intermediate sleeve assembly. The threaded hole is arranged along the axial direction of the outer sleeve assembly; the pushing bolt passes through the second bolt hole on the intermediate sleeve assembly and is connected to the threaded hole on the outer sleeve assembly.

3. A split-flap shaft-holding device according to claim 2, characterized in that: The outer jacket assembly comprises two outer jacket petal bodies, and the two outer jacket petal bodies are connected by connecting bolts.

4. A split-flap shaft holding device according to claim 3, characterized in that: The outer sheath petal body comprises an outer sheath petal body body, a first flange portion is arranged on the outer sheath petal body body, and a first bolt hole is arranged on the first flange portion; the threaded hole is arranged on the end surface of the outer sheath petal body body.

5. A split-flap shaft-holding device according to claim 2, characterized in that: The intermediate sleeve assembly is composed of two intermediate sleeve petal bodies, wherein the intermediate sleeve petal body comprises an intermediate sleeve petal body main body, one end of the intermediate sleeve petal body main body is provided with a second flange part, and the second bolt hole is arranged on the second flange part.

6. A split-flap shaft-holding device according to claim 1, characterized in that: The inner sleeve assembly is composed of two inner sleeve petal bodies.

7. The split-petal shaft-holding device according to claim 1 is characterized in that: The taper of the outer conical surface is 2-3 degrees.

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