Propeller shaft centering detection device

Abstract

The utility model discloses a propeller shaft centering detection device, including the base of the device, install the jacking oil cylinder and the centering platform on the base, install the jacking taper block on the jacking oil cylinder, the jacking taper block does the up and down motion in the centering platform under the action of jacking oil cylinder, install the support on the top of jacking taper block, install the laser sensor on the end of support, and the number of laser sensor is 4 sets, set up mutually 90 degrees on the laser centering sensor, the propeller of on the centering platform is the propeller of waiting for detecting, and there is the inner hole on the propeller, and the inner hole is the machining surface, and can be used for laser ranging detection. Adopt this device can improve the detection efficiency and the accuracy.

Description

Technical Field

[0001] This utility model relates to an alignment detection device, and more particularly to a shaftless propeller alignment detection device. Background Technology

[0002] Currently, in the alignment process of shaftless static balancing instruments, whether the alignment is achieved can only be determined by visual inspection and caliper measurement. The measurement accuracy is not high and it affects the inspection efficiency. At the same time, visual inspection and caliper measurement can also affect the inspection results due to the operator's operating habits. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of existing technologies and provide a propeller shaftless alignment detection device that uses a laser displacement sensor for real-time detection to replace manual detection, thereby improving detection accuracy and efficiency.

[0004] To achieve the objectives of this utility model, the technical solution adopted by this utility model is as follows:

[0005] The present invention provides a propeller shaftless alignment detection device, comprising a base, an alignment platform installed in the middle of the base, the alignment platform including a horizontal support surface for supporting the lower end face of the propeller, a cavity in the middle of the alignment platform, and the alignment platform being fixedly connected to the base.

[0006] A lifting cylinder is installed inside the centering platform. A lifting cone is fixed on the hydraulic rod of the lifting cylinder, which is set vertically. The lifting cone is conical. Under the action of the lifting cylinder, the lifting cone moves up and down and can contact the inner hole of the propeller placed on the horizontal support surface to drive the propeller to move on the horizontal support surface. A bracket is installed on the top of the lifting cone, and four laser displacement sensors are installed on the bracket. The four laser displacement sensors are set at 90 degrees to each other. The four laser displacement sensors can enter the inner hole of the propeller under the action of the lifting cylinder. The four laser displacement sensors are used to detect the distance between each laser displacement sensor and the inner wall of the inner hole of the propeller placed on the centering platform.

[0007] The advantages of this invention are: the propeller has an inner hole, which is a machined surface and can be used for laser ranging and detection. Therefore, the laser displacement sensor is used for real-time detection to replace manual detection. The structure is simple, and automatic detection can be achieved, improving detection efficiency and accuracy. Attached Figure Description

[0008] Figure 1 This is a side view of a propeller shaftless alignment detection device according to the present invention;

[0009] Figure 2 yes Figure 1A top view of the laser detection structure in the device shown. Detailed Implementation

[0010] The structure of this utility model will be described below with reference to the accompanying drawings.

[0011] As shown in the attached figure, the present invention provides a propeller shaftless alignment detection device, which includes a base 8, an alignment platform 5 installed in the middle of the base, the alignment platform including a horizontal support surface for supporting the lower end face of the propeller 1, a cavity in the middle of the alignment platform, and the alignment platform being fixedly connected to the base.

[0012] A lifting cylinder 7 is installed inside the centering platform 5. A lifting cone 6 is fixed to the hydraulic rod of the lifting cylinder, which is arranged vertically. The lifting cone 6 is conical in shape. Under the action of the lifting cylinder 7, the lifting cone 6 moves up and down and can contact the inner hole of the propeller placed on the horizontal support surface to drive the propeller to move on the horizontal support surface. Preferably, the base includes a base plate with a raised support platform in the middle of the base plate. A groove is opened in the middle of the support platform, and the base of the lifting cylinder is fixed in the groove. The cavity is an annular cavity. The lower part of the lifting cone 6 has an annular portion that matches the shape of the annular cavity. The annular portion can slide up and down in contact with the annular cavity. The centering platform is installed on the top surface of the support platform, which can provide guidance and positioning for the up and down movement of the lifting cone 6.

[0013] A bracket 4 is installed on the top of the lifting cone, and four laser displacement sensors 3 are mounted on the bracket, with the four laser displacement sensors arranged at 90 degrees to each other. Preferably, the bracket is a cross structure, with a laser displacement sensor 3 installed at each of the four ends of the cross structure. The four laser displacement sensors can enter the inner hole of the propeller under the drive of the lifting cylinder, and are used to detect the distance between each laser displacement sensor and the inner wall 2 of the inner hole of the propeller 1 placed on the centering platform.

[0014] The working principle of this structure is as follows:

[0015] When the propeller is not aligned, it is tilted to one side on the alignment platform. The lifting cone 6, under the action of the lifting cylinder 7, makes the propeller 1 move in a plane on the alignment platform 5. The laser displacement sensor 3 detects the distance between the propeller and the inner wall in real time and outputs it to the computer. When the four values ​​output by the laser 3 are inconsistent, the propeller 1 is lifted and aligned again by the lifting cone 6. When the values ​​detected by the four laser displacement sensors arranged at 90 degrees to each other are consistent, it means that the propeller is in the alignment state.

Claims

1. A propeller shaftless alignment detection device, comprising a base (8), characterized in that: A centering platform (5) is installed in the middle of the base. The centering platform includes a horizontal support surface, which is used to support the lower end face of the propeller (1). A cavity is opened in the middle of the centering platform, and the centering platform is fixedly connected to the base. A lifting cylinder (7) is installed inside the centering platform. A lifting cone (6) is fixed on the hydraulic rod of the lifting cylinder, which is set in the vertical direction. The lifting cone is conical. Under the action of the lifting cylinder, the lifting cone moves up and down and can contact the inner hole of the propeller placed on the horizontal support surface to drive the propeller to move on the horizontal support surface. A bracket (4) is installed on the top of the lifting cone. Four laser displacement sensors (3) are installed on the bracket. The four laser displacement sensors are set at 90 degrees to each other. The four laser displacement sensors can enter the inner hole of the propeller under the drive of the lifting cylinder. The four laser displacement sensors are used to detect the distance between each laser displacement sensor and the inner wall (2) of the inner hole of the propeller (1) placed on the centering platform.

2. The propeller shaftless alignment detection device according to claim 1, characterized in that: The base includes a base plate, a raised support platform in the middle of the base plate, a groove in the middle of the support platform, the base of the lifting cylinder is fixed in the groove, the cavity is an annular cavity, the lower part of the lifting cone has an annular part that matches the shape of the annular cavity, the annular part can slide and contact the annular cavity up and down, and the centering platform is installed on the top surface of the support platform.

3. The propeller shaftless alignment detection device according to claim 1, characterized in that: The bracket is a cross-shaped structure, with a laser displacement sensor installed at each of the four ends of the cross-shaped structure.

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