Positioning device and positioning method for crystallizer main shaft

Abstract

The application discloses a positioning device of a crystallizer driving shaft, comprising a driving shaft positioning support and a driven shaft positioning support which are arranged in parallel to each other and are both arranged perpendicularly to a horizontal plane, and the driving shaft positioning support and the driven shaft positioning support are in the same height; the application also discloses a positioning method of the crystallizer driving shaft, and the coaxiality between the driving shaft and the driven shaft on the equipment can be ensured by using the positioning tool, so that the stable operation of the equipment is ensured.

Description

Technical Field

[0001] This invention belongs to the field of crystallizer drive shaft positioning technology, and relates to a positioning device for crystallizer drive shaft.

[0002] The present invention also relates to a method for positioning the active shaft of a crystallizer. Background Technology

[0003] In the past, when positioning the crystallizer's drive shaft, the drive shaft positioning bracket and the driven shaft positioning bracket were two separate components. Each time the crystallizer's drive shaft was positioned, the distance between the drive shaft and driven shaft positioning brackets had to be adjusted first. Then, fasteners were used to connect and fix the drive shaft and driven shaft positioning brackets, along with their respective columns, onto a platform. Finally, a simulated shaft was used to align the drive shaft and driven shaft positioning brackets. Therefore, each use required preparing a platform and machining a simulated shaft, which was quite cumbersome. Furthermore, because there was a certain gap between the T-slot on the platform and the bolt holes of the positioning brackets, after repeated use, a certain misalignment would occur between the drive shaft and driven shaft positioning brackets, and their coaxiality would also deviate. Therefore, we urgently need to invent a new type of tooling that is convenient to operate and can also ensure the coaxiality between the drive shaft and driven shaft positioning brackets on both sides, thereby improving the positioning accuracy of the drive shaft during positioning. Summary of the Invention

[0004] The purpose of this invention is to provide a positioning device for the active shaft of a crystallizer. This positioning fixture can ensure the coaxiality between the active shaft and the driven shaft on the equipment, thereby ensuring the stable operation of the equipment.

[0005] Another object of the present invention is to provide a method for positioning the active shaft of a crystallizer.

[0006] The technical solution adopted in this invention is a positioning device for the active shaft of a crystallizer, which includes an active shaft positioning bracket and a driven shaft positioning bracket arranged parallel to each other, and both the active shaft positioning bracket and the driven shaft positioning bracket are arranged perpendicular to the horizontal plane and are at the same height.

[0007] The invention is further characterized by:

[0008] The positioning device also includes a base platform, with the active shaft positioning bracket and the driven shaft positioning bracket located at both ends of the base platform, and the active shaft positioning bracket and the driven shaft positioning bracket are perpendicular to the base platform.

[0009] The active shaft positioning bracket and the driven shaft positioning bracket are connected to the base platform through the active shaft column and the driven shaft column, respectively. The active shaft column and the driven shaft column are parallel to each other and perpendicular to the base platform.

[0010] The drive shaft positioning bracket and the driven shaft positioning bracket are respectively provided with through holes;

[0011] The active shaft positioning bracket and the driven shaft positioning bracket have the same structure.

[0012] The active shaft positioning bracket includes an upper bracket and a lower bracket. One end of the upper bracket is connected to the lower bracket via a movable shaft, and the other end of the upper bracket is connected via fastening bolts. A through hole is located between the upper bracket and the lower bracket.

[0013] Another technical solution adopted in this invention is a method for positioning the crystallizer's drive shaft, which uses a positioning device for the crystallizer's drive shaft and is implemented according to the following steps:

[0014] Step 1: First, weld the driven shaft of the equipment to the equipment body;

[0015] Step 2: First, remove the upper brackets of the drive shaft positioning bracket and the driven shaft positioning bracket. Place the driven shaft of the equipment on the driven shaft positioning bracket and tighten the upper and lower parts of the driven shaft positioning bracket with fastening bolts. Then, place the drive shaft on the drive shaft positioning bracket and push it towards the equipment. After it is close to the equipment, tighten the upper and lower parts of the drive shaft positioning bracket with fastening bolts. Use welding rods to intermittently weld the drive shaft to the equipment in sections. After that, remove the equipment and place it on the roller frame and rotate it to an easy welding position to complete the welding.

[0016] The beneficial effects of this invention are:

[0017] The positioning device for the crystallizer drive shaft of this invention can effectively improve the positioning accuracy and efficiency of the crystallizer drive shaft. This device has a simple structure, and conventional I-beams, plates, and pipes are sufficient; the processing is simple, convenient, and easy to use. It can effectively ensure the stable operation of the crystallizer and improve the on-site installation efficiency of the equipment. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the positioning device for the crystallizer drive shaft of the present invention;

[0019] Figure 2 This is a side view of the positioning device for the crystallizer drive shaft of the present invention;

[0020] Figure 3 This is a schematic diagram of the structure of the active shaft positioning bracket in the positioning device of the crystallizer active shaft of the present invention.

[0021] In the diagram, 1. Base platform; 2. Drive shaft column; 3. Drive shaft positioning bracket; 4. Driven shaft column; 5. Driven shaft positioning bracket. Detailed Implementation

[0022] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0023] This invention provides a positioning device for the active shaft of a crystallizer, as shown in the following embodiments:

[0024] Example 1

[0025] In practical use, first open the driven shaft positioning bracket, place the driven shaft of the crystallizer (which has been welded to the equipment) on the driven shaft positioning bracket 5, and then use fasteners to lock the driven shaft positioning bracket 5 from top to bottom. Then place the drive shaft in the drive shaft positioning bracket 3, push the drive shaft toward the equipment, and after it is pressed against the equipment, position and weld the drive shaft to the equipment.

[0026] Example 2

[0027] like Figure 1 and Figure 2 As shown, the device of the present invention mainly consists of a base platform 1, a driven shaft column 4, a driven shaft positioning bracket 5, a drive shaft column 2, and a drive shaft positioning bracket 3. First, a square base platform 1 is welded together, and its upper and lower surfaces are machined into a single plane. Then, two columns are welded together, namely the driven shaft column 4 and the drive shaft column 2. These columns are used to adjust the positioning height of the drive and driven shafts, ensuring that the crystallizer can be placed within them, and the upper and lower surfaces of the two columns are machined flat. Finally, the drive shaft and driven shaft positioning brackets are welded together, as shown in the diagram. Figure 3 As shown, after the upper and lower surfaces of the two supports are machined flat, they are cut into two halves along the center of the support using wire cutting. One end is movably connected by a movable shaft, and the other end is locked with fastening bolts. Then, the active shaft positioning support 3, the active shaft column 2, the driven shaft positioning support 5, the driven shaft column 4 and the base platform 1 are assembled respectively. After ensuring that the center distance between the two supports is basically consistent with the center distance between the active shaft and the driven shaft on the equipment, the two columns are welded to the positioning support and the base platform as a whole. Finally, after the bottom surface of the entire platform is milled flat, the center holes of the active shaft positioning support and the driven shaft positioning support are machined to the required dimensions in one pass.

[0028] Example 3

[0029] The crystallizer drive shaft positioning method of the present invention employs a crystallizer drive shaft positioning device, mainly composed of a base platform 1, a driven shaft column 4, a driven shaft positioning bracket 5, a drive shaft column 2, and a drive shaft positioning bracket 3. The stable operation of the crystallizer is mainly ensured by the coaxiality of the drive and driven shafts on both sides of the equipment. By using this positioning fixture, the coaxiality of the shafts on both sides is guaranteed; specifically as follows:

[0030] The positioning fixture is made into a single unit. The driven shaft on the equipment body is connected to the positioning shaft on one side of the platform, and the active shaft is positioned by the active shaft positioning bracket at the other end. Both the active and driven shafts can be moved back and forth in the through holes in the positioning fixture, which facilitates subsequent positioning, welding and other operations. This positioning fixture does not require the use of a simulation shaft to align the center holes of the active and driven shaft positioning brackets on both sides, nor does it require the assistance of a platform. Therefore, it has fewer restrictions when used and has high positioning accuracy.

Claims

1. A method of positioning a crystallizer main shaft using a crystallizer main shaft positioning device, characterized by, The positioning device of the crystallizer driving shaft comprises driving shaft positioning supports (3) and driven shaft positioning supports (5) arranged in parallel to each other, and the driving shaft positioning supports (3) and the driven shaft positioning supports (5) are arranged perpendicularly to the horizontal plane, and the driving shaft positioning supports (3) and the driven shaft positioning supports (5) are in the same height; the positioning device further comprises a base platform (1), the driving shaft positioning supports (3) and the driven shaft positioning supports (5) are respectively located at two ends of the base platform (1), and the driving shaft positioning supports (3) and the driven shaft positioning supports (5) are perpendicular to the base platform (1); the driving shaft positioning supports (3) and the driven shaft positioning supports (5) are respectively connected with the base platform (1) through driving shaft columns (2) and driven shaft columns (4), and the driving shaft columns (2) and the driven shaft columns (4) are parallel to each other and perpendicular to the base platform (1); the driving shaft positioning supports (3) and the driven shaft positioning supports (5) are respectively provided with through holes; the driving shaft positioning supports (3) and the driven shaft positioning supports (5) are of the same structure; the driving shaft positioning support (3) comprises an upper support and a lower support, one end of the upper support and the lower support is connected through a movable shaft, and the other end of the upper support and the lower support is connected through a fastening bolt, and the through hole is located between the upper support and the lower support; The positioning method of the crystallizer driving shaft is implemented according to the following steps: Step 1, first, the driven shaft of the equipment is welded with the equipment body; Step 2, then, the upper supports of the driving shaft positioning supports (3) and the driven shaft positioning supports (5) are removed, the equipment driven shaft is placed on the driven shaft positioning supports (5), the upper and lower parts of the driven shaft positioning supports (5) are connected and fastened through the fastening bolts, then the driving shaft is placed on the driving shaft positioning supports (3) and pushed to the equipment direction, after the driving shaft is close to the equipment, the upper and lower parts of the driving shaft positioning supports (3) are connected and fastened through the fastening bolts, after the driving shaft is firmly welded in sections and intermittently using the welding rod, the equipment is removed and placed on the roller frame and turned to a position easy to weld, and then the welding is completed.

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