Alignment detection device for assembling paddle shaft and hole of vertical mixer

Abstract

The invention discloses an alignment detection device for assembling a paddle shaft and a hole of a vertical mixer, which comprises a paddle shaft concentric disc, a paddle shaft hole concentric disc, a key slot alignment device, a laser projector, a rubidium magnet and a button battery assembly, wherein the rubidium magnet is attached to the paddle shaft concentric disc; the blade shaft concentric disc is attracted to the shaft end of the blade shaft through the rubidium magnet and used for being aligned with the blade shaft hole concentric disc; the paddle shaft hole concentric disc is positioned at a port of the paddle shaft hole and is used for being aligned with the paddle shaft concentric disc; one end of the keyway aligner is positioned in the keyway on the side wall of the paddle shaft, and the other end of the keyway aligner is initially suspended and used for aligning with the keyway arranged on the inner wall of the paddle shaft hole; the laser projector is mounted in the blade shaft concentric disc and emits laser to the blade shaft hole concentric disc for alignment; the button battery assembly is attached to the blade shaft concentric disc and used for supplying power to the laser projector. According to the invention, the mixer blade can be efficiently aligned and assembled, and repeated adjustment is avoided.

Description

Technical Field

[0001] The present invention relates to a positioning detection device for assembling a blade shaft and a hole of a vertical mixer, and belongs to the field of solid propellant production equipment. In particular, it relates to a set of positioning detection devices for detecting the coaxial state of the blade shaft and the blade shaft hole space, the alignment state of the shaft end keyway and the blade end keyway during the assembly process of the mixer blade, and improving the assembly efficiency and quality of the blade. Background Art

[0002] When assembling the mixer blade, the blade shaft and the blade shaft mounting hole can only be assembled when they are coaxial in space and the keyways are aligned. Currently, the spatial position relationship between the blade and the blade shaft is visually observed by the operator, and the actual alignment state is affected by the observer's standing position, practical experience and subjective judgment, resulting in large discrepancies. During installation, multiple trial installations are required, which not only has low alignment efficiency, but also causes equipment wear. Summary of the invention

[0003] The technical problem solved by the present invention is: to overcome the shortcomings of the prior art and provide an alignment detection device for assembling the blade shaft and the hole of a vertical mixer, which can complete the alignment detection of the blade and the blade shaft within a range of 0.5m of the vertical height difference between the blade and the blade shaft, thereby realizing efficient alignment assembly of the mixer blade and avoiding repeated adjustments.

[0004] The technical solution of the present invention is: in the first aspect, a positioning detection device for assembling the blade shaft and the hole of a vertical mixer is provided, comprising: a blade shaft concentric disk, a blade shaft hole concentric disk, a keyway aligner, a laser projector, a rubidium magnet, and a button battery assembly, wherein:

[0005] The rubidium magnet is attached to the concentric disk of the blade shaft;

[0006] The blade shaft concentric disk is adsorbed on the shaft end of the blade shaft through a neodymium magnet to align with the blade shaft hole concentric disk;

[0007] The blade shaft hole concentric disk is located at the end of the blade shaft hole and is used for alignment with the blade shaft concentric disk;

[0008] One end of the keyway aligner is located in the keyway on the side wall of the blade shaft, and the other end is initially suspended in the air, and is used to align with the keyway set on the inner wall of the blade shaft hole;

[0009] The laser projector is installed in the concentric disk of the blade shaft, and emits laser to the concentric disk of the blade shaft hole for alignment;

[0010] The button battery assembly is attached to the concentric disk of the blade shaft and is used to power the laser projector.

[0011] Preferably, the main structure of the blade shaft concentric disk is in the shape of a disk, and a mounting groove matching the blade shaft is provided on one side;

[0012] A cylindrical groove protruding along the axial direction of the blade shaft is provided at the center of the main structure for installing the laser projector. The inner size of the groove matches the laser projector, and a through hole is provided at the bottom of the groove for laser emission.

[0013] Magnet grooves are provided on the horizontal axis and the vertical axis of the plane where the main structure is located, for attaching the rubidium magnet;

[0014] A portion of the main structure of the blade shaft concentric disk is cut off at the edge to cooperate with the keyway aligner.

[0015] Preferably, a through hole is provided on the main structure of the blade shaft concentric disk to reduce the weight of the blade shaft concentric disk.

[0016] Preferably, the blade shaft hole concentric disk comprises a base plate and an alignment cylinder located at the center of the base plate; wherein:

[0017] The bottom plate is a rounded rectangle obtained by cutting the original large circle. A small circle concentric with the original large circle is arranged on the lower surface of the bottom plate. The annular portion is thinned so that the edge of the thinned lower surface can be stuck in the blade shaft hole port, while leaving space for the keyway aligner and the keyway on the inner wall of the blade shaft hole.

[0018] The cross section of the alignment cylinder is concentric with the original large circle, and the center position of the upper surface is set as the alignment center.

[0019] Preferably, the inner diameter dimension design standard of the concentric disk installation groove of the blade shaft is to increase the actual measured dimension of the blade shaft by 0.05 mm to 0.1 mm;

[0020] The outer diameter of the small circle on the lower surface of the concentric disk of the blade shaft hole is 0.05mm to 0.1mm smaller than the measured inner diameter of the blade shaft hole.

[0021] Preferably, the blade shaft concentric disk, the blade shaft hole concentric disk, and the keyway aligner are made of aluminum alloy with a hardness between HRC15 and HRC25;

[0022] When the height difference between the blade shaft and the blade shaft hole is ≤0.5m, the alignment accuracy of the blade shaft and the blade shaft hole is within ф0.5mm.

[0023] In a second aspect, a method for aligning a paddle shaft and a hole of a vertical mixer is provided, comprising:

[0024] The blade shaft concentric disk is adsorbed on the shaft end of the blade shaft through a neodymium magnet, and the blade shaft hole concentric disk is placed on the end of the blade shaft hole. At the same time, one end of the keyway aligner is installed on the keyway on the side wall of the blade shaft, and the other end is suspended in the air;

[0025] Power on the laser projector to fire the laser towards the concentric disk of the blade shaft hole;

[0026] Adjust the blade position. When the laser emitted by the laser projector is aligned with the center of the concentric disk of the blade shaft hole and the cylinder, move the blade in the direction of the laser alignment to make it close to the blade shaft. When the suspended end of the keyway aligner is inserted into the keyway on the inner wall of the blade shaft hole, stop the movement of the blade shaft. The assembly alignment test of the blade and the blade shaft is completed.

[0027] Remove the blade shaft concentric disk, blade shaft hole concentric disk and keyway aligner, and then continue to move the blade shaft hole toward the blade shaft in the current direction until the blade shaft and blade shaft hole are aligned and installed.

[0028] Compared with the prior art, the present invention has the following advantages:

[0029] The device for detecting the alignment of the blade shaft and the blade shaft hole when assembling the mixer blade designed by the present invention is composed of three independent units used in combination, with a simple structure and easy use. The device can complete the alignment detection of the blade and the blade shaft within a range of 0.5m of the vertical height difference between the blade and the blade shaft, thereby realizing efficient alignment assembly of the mixer blade and avoiding repeated adjustments. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is an assembly diagram of the blade shaft concentric disk component of the present invention;

[0031] Figure 2 This is a schematic diagram of the use and installation of the device of the present invention;

[0032] Figure 3 The three views of the concentric disk of the blade shaft of the present invention;

[0033] Figure 4 The three views of the concentric disk of the blade shaft hole of the present invention;

[0034] Figure 5 It is three views of the keyway aligner of the present invention. DETAILED DESCRIPTION

[0035] The problem to be solved by the present invention is to enable operators to quickly and accurately judge the coaxial state of the blade shaft 7 and the blade shaft hole of the blade 8, and quickly and accurately judge the alignment state of the shaft end keyway and the blade end keyway.

[0036] The technical solution adopted by the present invention is: design and manufacture three independent units: blade shaft concentric disk, blade shaft hole concentric disk, and keyway aligner. The concentric disks are installed at the blade shaft end and the blade shaft hole respectively. With the help of a laser projector installed on the blade shaft concentric disk, the coaxial state of the blade shaft and the blade spatial position is detected; the keyway aligner is used to detect the alignment state of the shaft end keyway and the blade end keyway. Specifically:

[0037] The present invention discloses a device for detecting the alignment of a blade shaft and a hole of a vertical mixer, comprising: a blade shaft concentric disk 1, a blade shaft hole concentric disk 2, a keyway aligner 3, a high-precision laser projector 4, a rubidium magnet 5, and a button battery assembly 6, wherein:

[0038] The neodymium magnet 5 is attached to the blade shaft concentric disk 1;

[0039] The blade shaft concentric disk 1 is adsorbed on the shaft end of the blade shaft through the neodymium magnet 5, and is used for alignment with the blade shaft hole concentric disk 2;

[0040] The blade shaft hole concentric disk 2 is located at the end of the blade shaft hole and is used for alignment with the blade shaft concentric disk 1;

[0041] One end of the keyway aligner 3 is located in the keyway on the side wall of the blade shaft, and the other end is initially suspended in the air, and is used to align with the keyway set on the inner wall of the blade shaft hole;

[0042] A high-precision laser projector 4 is installed in the blade shaft concentric disk 1, and emits laser to the blade shaft hole concentric disk 2 for alignment;

[0043] The button battery assembly 6 is attached to the blade shaft concentric disk 1 and is used to power the high-precision laser projector 4 .

[0044] The main structure of the blade shaft concentric disk 1 is a disc, and a mounting groove matching the blade shaft is provided on one side;

[0045] A cylindrical groove protruding along the axial direction of the blade shaft is provided at the center of the main structure for installing the high-precision laser projector 4. The inner size of the groove matches the high-precision laser projector 4. A through hole is provided at the bottom of the groove for laser emission.

[0046] Magnet grooves are provided on the horizontal axis and the vertical axis of the plane where the main structure is located, for attaching the rubidium magnet 5;

[0047] A portion of the main structure of the blade shaft concentric disk 1 is cut off at the edge to cooperate with the keyway aligner 3.

[0048] A through hole is provided on the main structure of the blade shaft concentric disk 1 to reduce the weight of the blade shaft concentric disk 1 .

[0049] The blade shaft hole concentric disk 2 includes a bottom plate and an alignment cylinder located at the center of the bottom plate;

[0050] The bottom plate is a rounded rectangle obtained by cutting the original large circle from four directions. A small circle concentric with the original large circle is arranged on the lower surface of the bottom plate. The annular portion is thinned so that the edge of the thinned lower surface can be stuck in the port of the blade shaft hole, while leaving space for the keyway aligner 3 and the keyway on the inner wall of the blade shaft hole; the cross section of the alignment cylinder is concentric with the original large circle, and the center position of the upper surface is set at the alignment center.

[0051] The design standard of the inner diameter dimension of the installation groove of the blade shaft concentric disk 1 is to increase the actual measured dimension of the blade shaft by 0.05mm to 0.1mm;

[0052] The outer diameter of the small circle on the lower surface of the concentric disk 2 of the blade shaft hole is 0.05 mm to 0.1 mm smaller than the actually measured inner diameter of the blade shaft hole.

[0053] The blade shaft concentric disk 1, the blade shaft hole concentric disk 2 and the keyway aligner 3 are made of aluminum alloy with a hardness between HRC15 and HRC25; when the height difference between the blade shaft and the blade shaft hole is ≤0.5m, the alignment accuracy of the blade shaft and the blade shaft hole is within ф0.5mm.

[0054] The alignment method using the above alignment detection device for assembling the blade shaft and the hole of a vertical mixer comprises:

[0055] The blade shaft concentric disk 1 is adsorbed on the shaft end of the blade shaft through the neodymium magnet 5, and the blade shaft hole concentric disk 2 is placed on the end of the blade shaft hole. At the same time, one end of the keyway aligner 3 is installed on the keyway on the side wall of the blade shaft, and the other end is suspended in the air;

[0056] Power is supplied to the high-precision laser projector 4 to cause it to emit laser light toward the blade shaft hole concentric disk 2;

[0057] Adjust the blade position. When the laser emitted by the high-precision laser projector 4 is aligned with the center of the blade shaft hole concentric disk 2 and the cylinder, move the blade in the direction of the laser alignment to make it close to the blade shaft. When the suspended end of the keyway aligner 3 is inserted into the keyway on the inner wall of the blade shaft hole, stop the movement of the blade shaft, and the assembly alignment detection of the blade and the blade shaft is completed.

[0058] Remove the blade shaft concentric disk 1, the blade shaft hole concentric disk 2 and the keyway aligner 3, and then continue to move the blade shaft hole toward the blade shaft in the current direction until the alignment installation of the blade shaft and the blade shaft hole is completed.

[0059] Example:

[0060] The device of the present invention is as follows Figure 2 As shown, it is composed of a blade shaft concentric disk 1, a blade shaft hole concentric disk 2, a keyway aligner 3, a high-precision laser projector 4, a rubidium magnet 5, and a button battery assembly 6.

[0061] The high-precision laser projector 4, rubidium magnet, and button battery assembly 6 of the present invention are all standard parts and can be purchased on the market. The high-precision laser projector 4, rubidium magnet, and button battery assembly 6 are installed on the blade shaft concentric disk 1, the blade shaft concentric disk 1 is installed at the blade shaft end, and the blade shaft hole concentric disk 2 is installed at the blade shaft hole end. The keyway aligner 3 is installed on the shaft end keyway to compare and measure the spatial position relationship between the shaft end keyway and the blade keyway.

[0062] Blade shaft concentric disk 1 Figure 1 and Figure 3 As shown, it is installed by magnet adsorption, which is quick to disassemble and assemble, and the installation method is easy to master without special training; the blade shaft concentric disk 1 relies on its installation groove to realize the calibration of the blade shaft center, and there is no strict requirement for the flatness of the blade shaft end surface. If necessary, the accurate calibration of the blade shaft center can be achieved by increasing the groove height; the inner diameter size design standard of the installation groove of the blade shaft concentric disk 1 is to increase the actual measured size of the blade shaft by 0.05mm to 0.1mm;

[0063] Blade shaft hole concentric disk 2 Figure 4 As shown, it has a center marking hole, which is quick to disassemble and install, and is simple to install. After installation, the center position of the blade shaft hole can be directly marked; the blade shaft hole concentric disk 2 relies on the bottom fillet to realize the blade shaft hole center calibration, and there is no strict requirement for the flatness of the blade shaft hole end surface. If necessary, the blade shaft hole center can be accurately calibrated by increasing the bottom fillet height; the outer diameter size design standard of the bottom fillet of the blade shaft hole concentric disk 2 is reduced by 0.05mm~0.1mm based on the actual measured size of the blade shaft hole;

[0064] Keyway aligner 3 Figure 5 As shown, it has a simple structure, is easy to use, and can be arbitrarily customized in length. The width and height dimensions are the same as the blade shaft and the blade transmission key.

[0065] The device of the present invention is suitable for various types of vertical mixers, and is suitable for assembly alignment detection of a blade shaft and a blade shaft hole; the blade shaft concentric disk 1, the blade shaft hole concentric disk 2, and the keyway aligner of the device are made of aluminum alloy with a hardness between HRC15 and HRC25; the device needs to be used in conjunction to achieve accurate alignment detection of the blade and the blade shaft; when the height difference between the blade shaft and the blade shaft hole is ≤0.5m, the alignment accuracy (coaxiality) of the blade shaft and the blade shaft hole is within ф0.5mm.

[0066] like Figure 1 As shown, the assembly of the high-precision laser projector 4, the rubidium magnet 5, and the button battery assembly 6 on the concentric disk 1 is completed.

[0067] like Figure 2 As shown, the assembled blade shaft concentric disk 1 is adsorbed on the blade shaft end, and the blade shaft hole concentric disk 2 is installed in the blade shaft hole. The laser point projected by the blade shaft concentric disk 1 will fall on the blade shaft hole concentric disk 2. The keyway aligner 3 can be used to directly detect the alignment status of the shaft end keyway and the blade end keyway.

[0068] The contents not described in detail in the specification of the present invention belong to the prior art known to the professional and technical personnel in this field.

Claims

1. A device for detecting the alignment of a vertical mixer blade shaft and a hole during assembly, characterized in that include: A blade shaft concentric disk (1), a blade shaft hole concentric disk (2), a keyway aligner (3), a laser projector (4), a rubidium magnet (5), and a button battery assembly (6), wherein: The rubidium magnet (5) is attached to the blade shaft concentric disk (1); The blade shaft concentric disk (1) is adsorbed on the shaft end of the blade shaft through a neodymium magnet (5) and is used for alignment with the blade shaft hole concentric disk (2); The blade shaft hole concentric disk (2) is located at the end of the blade shaft hole and is used for alignment with the blade shaft concentric disk (1); One end of the keyway aligner (3) is located in the keyway on the side wall of the blade shaft, and the other end is initially suspended in the air, and is used to align with the keyway arranged on the inner wall of the blade shaft hole; The laser projector (4) is installed in the blade shaft concentric disk (1) and emits laser light to the blade shaft hole concentric disk (2) for alignment; The button battery assembly (6) is attached to the blade shaft concentric disk (1) and is used to supply power to the laser projector (4).

2. The alignment detection device for assembling the impeller shaft and the hole of a vertical mixer according to claim 1, characterized in that: The main structure of the blade shaft concentric disk (1) is in the shape of a disk, and a mounting groove matching the blade shaft is provided on one side; A cylindrical groove protruding along the axial direction of the blade shaft is provided at the center of the main structure for mounting the laser projector (4), the inner dimensions of the groove match the laser projector (4), and a through hole is provided at the bottom of the groove for laser emission; Magnet grooves are arranged on the horizontal axis and the vertical axis of the plane where the main structure is located, for attaching the rubidium magnet (5); A portion of the main structure of the blade shaft concentric disk (1) is cut off at the edge to match the keyway aligner (3).

3. The alignment detection device for assembling the impeller shaft and the hole of a vertical mixer according to claim 2, characterized in that: A through hole is provided on the main structure of the blade shaft concentric disk (1) to reduce the weight of the blade shaft concentric disk (1).

4. The alignment detection device for assembling the impeller shaft and the hole of a vertical mixer according to claim 1, characterized in that: The blade shaft hole concentric disk (2) comprises a bottom plate and an alignment cylinder located at the center of the upper surface of the bottom plate; wherein: The bottom plate is a rounded rectangle obtained by cutting the original large circle, and a small circle concentric with the original large circle is arranged on the lower surface of the bottom plate. The annular portion is thinned so that the edge of the thinned lower surface can be stuck in the end of the blade shaft hole, and at the same time, space can be left for the keyway aligner (3) and the keyway on the inner wall of the blade shaft hole; The cross section of the alignment cylinder is concentric with the original large circle, and the center position of the upper surface is set as the alignment center.

5. The alignment detection device for assembling the impeller shaft and the hole of a vertical mixer according to claim 4, characterized in that: The design standard of the inner diameter dimension of the installation groove of the blade shaft concentric disk (1) is to increase the actual measured dimension of the blade shaft by 0.05 mm to 0.1 mm; The outer diameter of the small circle on the lower surface of the blade shaft hole concentric disk (2) is 0.05 mm to 0.1 mm smaller than the measured inner diameter of the blade shaft hole.

6. The alignment detection device for assembling the impeller shaft and the hole of a vertical mixer according to claim 1, characterized in that: The blade shaft concentric disk (1), the blade shaft hole concentric disk (2), and the keyway aligner (3) are made of aluminum alloy with a hardness between HRC15 and HRC25; When the height difference between the blade shaft and the blade shaft hole is ≤0.5m, the alignment accuracy of the blade shaft and the blade shaft hole is within ф0.5mm.

7. A method for aligning the blade shaft and the hole of a vertical mixer, characterized in that include: The blade shaft concentric disk (1) is adsorbed on the shaft end of the blade shaft through the rubidium magnet (5), the blade shaft hole concentric disk (2) is placed on the end of the blade shaft hole, and at the same time, one end of the keyway aligner (3) is installed in the keyway on the side wall of the blade shaft, and the other end is suspended in the air; Powering up the laser projector (4) to cause it to emit laser light toward the blade shaft hole concentric disk (2); Adjust the position of the blade. When the laser emitted by the laser projector (4) is aligned with the center of the blade shaft hole concentric disk (2) and the cylinder, move the blade in the direction of the laser alignment so that it is close to the blade shaft. When the suspended end of the keyway aligner (3) is inserted into the keyway on the inner wall of the blade shaft hole, stop the movement of the blade shaft, and the assembly alignment detection of the blade and the blade shaft is completed. Remove the blade shaft concentric disk (1), the blade shaft hole concentric disk (2) and the keyway aligner (3), and then continue to move the blade shaft hole toward the blade shaft in the current direction until the blade shaft and the blade shaft hole are aligned and installed.

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