A highly efficient and convenient centering device and centering method for shafts

Abstract

The present invention relates to an efficient and convenient centering device for shafts, comprising an inner ring and an outer ring; the outer ring diameter of the inner ring is equal to the inner ring diameter of the outer ring, and the length L1 of the inner ring is equal to the length of the outer ring; during installation, the inner ring is sleeved on the shaft with a small diameter, and the outer ring is sleeved on the shaft with a large diameter, and the length of the inner ring and the length of the outer ring are both equal to the installation gap L between the shaft with a small diameter and the shaft with a large diameter. The present invention has a simple structure, does not require additional centering measuring instruments, solves the complex problem of centering between shafts, is convenient and efficient, greatly improves the work efficiency of centering installation in the factory, and can also be used at the customer's installation site, providing an efficient and convenient solution for solving centering problems on site.

Description

Technical Field

[0001] The invention relates to a centering device and a centering method, and in particular to a centering device and a centering method for shafts that are simple in structure, do not require additional centering measuring instruments, solve the complex problem of centering between shafts, and are convenient and efficient. Background Art

[0002] As one of the necessary parts of general machinery, shafts have a wide range of applications. The degree of shaft alignment is related to whether the machinery can work normally. The current shaft alignment process has problems such as difficulty in installation and disassembly and the need for professional alignment tools. Therefore, it is particularly important to improve the shaft alignment device or process. Summary of the invention

[0003] In view of the above problems, the main purpose of the present invention is to provide a convenient and efficient shaft-to-shaft centering device and method that has a simple structure and does not require additional alignment measuring instruments, thereby solving the complex problem of alignment between shafts.

[0004] The present invention solves the above technical problems through the following technical solutions: an efficient and convenient device for centering shafts, the efficient and convenient device for centering shafts comprising: an inner ring of the device and an outer ring of the device; the outer ring diameter of the inner ring of the device is equal to the inner ring diameter of the outer ring of the device, and the length L1 of the inner ring of the device is equal to the length of the outer ring of the device.

[0005] During installation, the inner ring of the device is sleeved on the shaft with a smaller diameter, and the outer ring of the device is sleeved on the shaft with a larger diameter. The length of the inner ring of the device and the length of the outer ring of the device are both equal to the installation gap L between the shaft with a smaller diameter and the shaft with a larger diameter.

[0006] In a specific implementation example of the present invention, the length of the inner ring of the device on the shaft with a smaller diameter is 1 / 2-1 / 3 of the length of the inner ring of the device.

[0007] In a specific implementation example of the present invention, the length of the outer ring of the device on the shaft with a larger diameter is 1 / 2-1 / 3 of the length of the outer ring of the device.

[0008] In a specific implementation example of the present invention, the length of the inner ring of the device on the shaft with a smaller diameter is 1 / 3 of the length of the inner ring of the device.

[0009] In a specific implementation example of the present invention, the length of the outer ring of the device on the shaft with a larger diameter is 1 / 3 of the length of the outer ring of the device.

[0010] A method for efficiently and conveniently centering shafts using the above device comprises the following steps:

[0011] (1) The relative axial position of the shaft with a smaller diameter and the shaft with a larger diameter, i.e. the installation clearance L, is determined. First, the inner ring of the device is placed on the shaft with a smaller diameter through the installation clearance L to ensure that the right end face of the inner ring of the device does not exceed the end face of the shaft with a smaller diameter;

[0012] (2) Then, put the outer ring of the device on the shaft with larger diameter through the installation gap L, ensuring that the left end face of the inner ring of the device does not exceed the end face of the shaft with larger diameter;

[0013] (3) Push the inner ring of the device away from the shaft with a smaller diameter, but make sure that part of the inner ring of the device is on the shaft with a smaller diameter.

[0014] (4) Push the outer ring of the device toward the inner ring of the device, and repeatedly adjust the degree of alignment between the shaft with a smaller diameter and the shaft with a larger diameter, so that the inner ring of the device outer ring is sleeved on the outer ring of the device inner ring, and ensure that part of the length of the device inner ring and the device outer ring belongs to the assembly matching length, and the part of the length of the device outer ring is sleeved on the shaft with a larger diameter.

[0015] In a specific implementation example of the present invention, in step (3), it is ensured that 1 / 3 of the length of the inner ring of the device is sleeved on the shaft with a small diameter.

[0016] In a specific implementation example of the present invention, in step (3), it is ensured that 1 / 3 of the length of the inner ring and the outer ring of the device belongs to the assembly matching length, and 1 / 3 of the length of the outer ring of the device is sleeved on the shaft with a larger diameter.

[0017] The positive progressive effect of the present invention is that the present invention provides an efficient and convenient shaft-to-shaft alignment device and method. The present invention has a simple structure and does not require additional alignment measuring instruments. It solves the complex problem of alignment between shafts and is convenient and efficient. It greatly improves the work efficiency of alignment installation in the factory and can also be used at the customer's installation site, providing an efficient and convenient solution for solving alignment problems on site. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure after installation in the present invention.

[0019] Figure 2-1 This is one of the steps for installing the inner ring of the device in the present invention.

[0020] Figure 2-2 This is the second step of installing the inner ring of the device in the present invention.

[0021] Figure 3-1 This is one of the steps for installing the outer ring of the device in the present invention.

[0022] Figure 3-2 This is the second step of installing the outer ring of the device in the present invention.

[0023] Figure 4 It is a schematic diagram of the structure in which the inner ring part of the device is pushed out in the present invention.

[0024] Figure 5 It is a schematic diagram of the structure in which the outer ring part of the device is pushed out in the present invention.

[0025] The following are the names corresponding to the labels in the present invention:

[0026] In the figure: device inner ring 1, device outer ring 2, first axis 3, second axis 4; line segment A, line segment B. DETAILED DESCRIPTION

[0027] Preferred embodiments of the present invention are given below in conjunction with the accompanying drawings to illustrate the technical solutions of the present invention in detail.

[0028] Figure 1 This is a schematic diagram of the overall structure after the installation of the present invention is completed. Figure 1 As shown: the present invention provides an efficient and convenient device for centering shafts, which includes: an inner ring 1 and an outer ring 2; the outer ring diameter of the inner ring 1 is equal to the inner ring diameter of the outer ring 2, and the length L1 of the inner ring 1 is equal to the length L2 of the outer ring 2.

[0029] During installation, the inner ring 1 of the device is sleeved on the first shaft 3 with a small diameter, and the outer ring 2 of the device is sleeved on the second shaft 4 with a large diameter. The length L1 of the inner ring 1 of the device and the length L2 of the outer ring 2 of the device are both equal to the installation gap L between the first shaft 3 and the second shaft 4. The left side of the line segment A is the first shaft 3, the right side of the line segment B is the second shaft 4, and there is a gap between the line segments A and B.

[0030] The length of the inner ring 1 of the device on the shaft with a smaller diameter is 1 / 2-1 / 3 of the length of the inner ring 1 of the device; the length of the outer ring 2 of the device on the shaft with a larger diameter is 1 / 2-1 / 3 of the length of the outer ring 2 of the device. In the figure given in this embodiment, the length of the inner ring 1 of the device on the shaft with a smaller diameter is 1 / 3 of the length of the inner ring 1 of the device; the length of the outer ring 2 of the device on the shaft with a larger diameter is 1 / 3 of the length of the outer ring 2 of the device. In the specific implementation process, the above parameters can be replaced with other data according to needs, and the above parameter ranges are only used as examples, not specific limitations.

[0031] In the specific implementation process of the present invention, the relative axial position of the first shaft 3 and the second shaft 4 is determined, that is, the installation gap L is determined. First, the inner ring 1 of the device is sleeved on the first shaft 3 through the installation gap L to ensure that the right end face of the inner ring 1 of the device does not exceed the end face of the first shaft. The installation steps are as follows: Figure 2-1 and 2-2 Then the outer ring 2 of the device is mounted on the second shaft 4 through the installation gap L to ensure that the left end face of the outer ring 2 of the device does not exceed the end face of the second shaft 4. The installation steps are as follows Figure 3-1 and 3-2 As shown; next Figure 4 As shown, the inner ring 1 of the device is turned toward Figure 4 Push it out in the direction of the middle arrow, but make sure that 1 / 3 of the length of the inner ring 1 of the device is on the first shaft. Figure 5 As shown, the outer ring 2 of the device is turned toward Figure 5 Push out in the direction of the middle arrow, repeatedly adjust the degree of centering of the first shaft 3 and the second shaft 4, so that the inner ring of the device outer ring 2 is sleeved on the outer ring of the device inner ring 1, and ensure that 1 / 3 of the length of the device inner ring 1 and the device outer ring 2 belongs to the assembly fitting length and 1 / 3 of the length of the device outer ring 2 is sleeved on the second shaft 4.

[0032] The inner and outer rings of the device provided by the present invention are two independent parts, and the inner ring diameter size of the outer ring of the device and the outer ring diameter size of the inner ring of the device need to control the shape and position tolerances.

[0033] The inner ring of the outer ring of the device of the present invention and the outer ring of the inner ring of the device are assembly matching surfaces. By controlling the shape and position tolerances of the inner ring of the outer ring and the outer ring of the inner ring and the assembly tolerance of the assembly matching surfaces, the assembly alignment degree of the two shafts 1 and 2 can be controlled.

[0034] The inner ring length L1, the outer ring length L2, and the gap L between the first shaft 3 and the second shaft 4 of the device of the present invention are all equal. The inner ring and the outer ring of the device can be taken out from the gap L only after the first shaft 3 and the second shaft 4 are aligned.

[0035] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected, and the scope of the present invention to be protected is defined by the attached claims and their equivalents.

Claims

1. A method for realizing efficient and convenient centering of shafts, wherein the centering device used in the centering method comprises: An inner ring and an outer ring of the device; the outer ring diameter of the inner ring of the device is equal to the inner ring diameter of the outer ring of the device, and the length L1 of the inner ring of the device is equal to the length of the outer ring of the device; During installation, the inner ring of the device is sleeved on the shaft with a smaller diameter, and the outer ring of the device is sleeved on the shaft with a larger diameter. The length of the inner ring of the device and the length of the outer ring of the device are both equal to the installation gap L between the shaft with a smaller diameter and the shaft with a larger diameter. The length of the device inner ring set on the shaft with a smaller diameter is 1 / 3 of the length of the device inner ring; The length of the device outer ring set on the shaft with a larger diameter is 1 / 3 of the length of the device outer ring; The centering method is characterized in that: (1) The relative axial position of the shaft with a smaller diameter and the shaft with a larger diameter, i.e. the installation clearance L, is determined. First, the inner ring of the device is placed on the shaft with a smaller diameter through the installation clearance L to ensure that the right end face of the inner ring of the device does not exceed the end face of the shaft with a smaller diameter; (2) Then, the outer ring of the device is placed on the shaft with a larger diameter through the installation gap L, ensuring that the left end face of the inner ring of the device does not extend beyond the end face of the shaft with a larger diameter; (3) Push the inner ring of the device away from the shaft with smaller diameter, but make sure that 1 / 3 of the length of the inner ring of the device is on the shaft with smaller diameter. (4) Push the outer ring of the device toward the inner ring of the device, and repeatedly adjust the degree of centering between the shaft with a smaller diameter and the shaft with a larger diameter, so that the inner ring of the device outer ring is mounted on the outer ring of the device inner ring, and ensure that 1 / 3 of the length of the device inner ring and the device outer ring belongs to the assembly fitting length, and the length of the device outer ring is mounted on the shaft with a larger diameter.

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