A nuclear power main pump horizontal adjustment tool and horizontal adjustment method

Abstract

The application provides a nuclear power main pump horizontal adjustment tool and a horizontal adjustment method. Compared with the prior art, the nuclear power main pump horizontal adjustment tool comprises a top ring, a convex platform arranged on the top ring, a vertical column in contact with the convex platform, an X-direction adjustment device arranged on the vertical column, a Y-direction adjustment device arranged on the vertical column, and a rotating adjustment device arranged on the vertical column. Compared with the prior art, the nuclear power main pump horizontal adjustment tool overcomes the problem that the existing adjustment tool is prone to rotating, and the three-direction adjustment devices arranged on each vertical column prevent the top ring from rotating and the nuclear power main pump from being unstable in the process of adjustment, thereby enhancing the stability of the adjustment process.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of horizontal adjustment of nuclear power main pump, in particular to a horizontal adjustment tool and method for nuclear power main pump. BACKGROUND

[0002] The nuclear power main pump is installed in a narrow compartment, and the clearance between the main pump and the column of the compartment is only 100mm. The existing method for adjusting the horizontal position of the nuclear power main pump is to fix four columns outside the top ring, install a horizontal adjustment structure on each column, and adjust the extension length of the head of each horizontal adjustment structure in contact with the outside of the top ring. The top ring is moved along the X direction or Y direction by adjusting the synchronous extension or contraction of the two adjacent columns and the synchronous contraction or extension of the two opposite columns. However, rotation is very easy to occur during the translation process, causing the center of gravity of the nuclear power main pump to be unstable. Therefore, how to design a horizontal adjustment tool and method to enhance the stability of the adjustment process and prevent the top ring from rotating and the center of gravity of the nuclear power main pump from being unstable during the adjustment process is a problem to be solved by those skilled in the art. SUMMARY

[0003] In order to overcome the problem that the existing adjustment tool is easy to rotate, the present application provides a horizontal adjustment tool and method for nuclear power main pump, which enhances the stability of the adjustment process and prevents the top ring from rotating and the center of gravity of the nuclear power main pump from being unstable during the adjustment process.

[0004] The technical scheme provided by the present application is as follows:

[0005] The present application provides a horizontal adjustment tool for nuclear power main pump, which comprises a top ring, a protruding platform arranged on the top ring, the protruding platform being arranged symmetrically along the top ring, a column in contact with the protruding platform, an X-direction adjustment device arranged on the column, the X-direction adjustment device being arranged along the tangent direction of the top ring, a Y-direction adjustment device arranged on the column, the Y-direction adjustment device being arranged along the tangent direction of the top ring, the X-direction adjustment device and the Y-direction adjustment device being perpendicular to each other, and a rotation adjustment device arranged on the column. The protruding platform is arranged symmetrically on the top ring, and the X-direction adjustment device, the Y-direction adjustment device and the rotation adjustment device are arranged on the column and in contact with the protruding platform. The thrust of the adjustment device on the top ring is fully exerted on the top ring, and the structural rigidity of the column is fully utilized. When adjusting in the X direction, the Y-direction adjustment device is used to top the corresponding boss position of the top ring to form a fixed guide rail to prevent rotation. Similarly, when adjusting in the Y direction, the X-direction adjustment device guides it to prevent rotation. The rotation adjustment device can tightly top the top ring from the symmetric direction to further stabilize the position of the top ring and prevent rotation. The three-direction adjustment devices enhance the stability of the adjustment process and solve the problems of easy rotation of the top ring and instability of the center of gravity of the nuclear power main pump during the adjustment process.

[0006] Further, in a preferred mode of the present application, four columns are symmetrically arranged around the top ring, the upper left is named column one, the upper right is named column two, the lower left is named column three, and the lower right is named column four; the top end of each column is provided with an X-direction adjusting device, a Y-direction adjusting device, and a rotating adjusting device; the contact part of the convex platform with the Y-direction adjusting device is perpendicular to the Y-direction, and the contact part of the convex platform with the X-direction adjusting device is perpendicular to the X-direction, which is used for guiding and preventing rotation of the force applying platform.

[0007] Further, in a preferred mode of the present application, the rotating adjusting device is arranged between the X-direction adjusting device and the Y-direction adjusting device. Since the X-direction adjusting device and the Y-direction adjusting device are perpendicular to each other, the included angle between the rotating adjusting device and the X-direction adjusting device and the Y-direction adjusting device is an acute angle, which provides a pushing force for the top ring to point to the center of the circle and tightly presses the top ring to prevent rotation when the top ring rotates.

[0008] The present application also provides a horizontal adjustment method for a nuclear power main pump, which comprises the following steps: S1, adjusting the top ring along the X-direction; S2, correcting the top ring to return to the horizontal position when the top ring rotates around the Z-axis; S3, adjusting the top ring along the Y-direction; and S4, correcting the top ring to return to the horizontal position when the top ring rotates around the Z-axis. Since the adjustment of the top ring along the X-direction will cause the gravity center of the top ring to deviate and easily rotate around the Z-axis, and the adjustment of the top ring along the Y-direction will cause the gravity center of the top ring to deviate and easily rotate around the Z-axis, a laser range finder is fixed at a position in the movement direction, the light spot of the laser range finder is marked on a fixed position on the main pump installation trolley, and the distance is detected by the laser range finder each time the operation is performed, and the change value is the movement value in the movement direction. If rotation occurs, the laser light spot will deviate from the initial mark, which is fed back to the horizontal adjustment tool for correction.

[0009] Further, in a preferred mode of the present application, step S1 comprises: extending the Y-direction adjusting device to tightly contact the corresponding convex platform; shortening the X-direction adjusting device on one side of the top ring while lengthening the X-direction adjusting device on the other side of the top ring to push the top ring to move along the X-direction; and maintaining a gap between the rotating adjusting device and the outer circular surface of the top ring during the adjustment. If X-direction adjustment is needed, the Y-direction adjusting devices on the four columns can be kept in contact with the convex platforms at their respective positions, the X-direction adjusting devices at the positions of column two and column four are shortened while the X-direction adjusting devices at the positions of column one and column three are lengthened to push the top ring and drive the main pump to move horizontally to the right; or the X-direction adjusting devices at the positions of column two and column four are lengthened while the X-direction adjusting devices at the positions of column one and column three are shortened to push the top ring and drive the main pump to move horizontally to the left; and the four rotating adjusting devices are kept at a gap of about 2 mm from the outer circular surface of the top ring during the adjustment.

[0010] Further, in a preferred manner of the present application, S2 comprises: the rotating adjustment device is in close contact with the outer circular surface of the top ring; the X-direction adjustment device or the Y-direction adjustment device is elongated in the opposite direction of the rotation; the X-direction adjustment device or the Y-direction adjustment device is loosened in the same direction of the rotation; after the rotation correction is completed, the X-direction adjustment device or the Y-direction adjustment device is elongated so that the X-direction adjustment device or the Y-direction adjustment device is in close contact with the convex platform; and the rotating adjustment device is loosened. If the top ring rotates due to different operation steps, gravity deviation, or installation errors, etc., the four rotating adjustment devices can be kept in close contact with the outer circular surface of the top ring, and the top ring drives the main pump to correct to the position before rotation; when the top ring rotates clockwise around the Z axis, one or more of the X-direction adjustment device of the second column, the X-direction adjustment device of the third column, the Y-direction adjustment device of the first column, and the Y-direction adjustment device of the fourth column can be elongated, and then the other X-direction adjustment devices and Y-direction adjustment devices are loosened; when the top ring rotates counterclockwise around the Z axis, one or more of the X-direction adjustment device of the first column, the X-direction adjustment device of the fourth column, the Y-direction adjustment device of the second column, and the Y-direction adjustment device of the third column can be elongated, and then the other X-direction adjustment devices and Y-direction adjustment devices are loosened. After the rotation correction is completed, the X-direction adjustment device or the Y-direction adjustment device is tightened, the rotating adjustment device is loosened, and the step S1 is repeated to adjust the horizontal direction until the required state is reached.

[0011] Further, in a preferred manner of the present application, S3 comprises: the X-direction adjustment device is elongated to be in close contact with the corresponding convex platform; the Y-direction adjustment device on one side of the top ring is shortened, and the Y-direction adjustment device on the other side of the top ring is elongated to push the top ring to move in the Y direction; and the rotating adjustment device is kept in a gap with the outer circular surface of the top ring during the adjustment. If Y-direction adjustment is required, the X-direction adjustment devices on the four columns can be kept in contact with the convex platforms at respective positions, the Y-direction adjustment devices at the positions of the third column and the fourth column are shortened, and the Y-direction adjustment devices at the positions of the first column and the second column are elongated to push the top ring and drive the main pump to move horizontally downward; or the Y-direction adjustment devices at the positions of the third column and the fourth column are elongated, and the Y-direction adjustment devices at the positions of the first column and the second column are shortened to push the top ring and drive the main pump to move horizontally upward; and the four rotating adjustment devices are kept in a gap of about 2 mm with the outer circular surface of the top ring during the adjustment.

[0012] Further, in a preferred manner of the present application, step S4 comprises: tightly contacting the rotating adjustment device with the outer circular surface of the top ring; extending the X-direction adjustment device or the Y-direction adjustment device in the opposite direction of the rotation; loosening the X-direction adjustment device or the Y-direction adjustment device in the same direction of the rotation; after the rotation correction is completed, extending the Y-direction adjustment device or the X-direction adjustment device so that the X-direction adjustment device or the Y-direction adjustment device is tightly contacted with the convex platform; and loosening the rotating adjustment device. If the top ring rotates due to different operation steps, gravity center deviation, or installation errors, etc., the four rotating adjustment devices can be kept in tight contact with the outer circular surface of the top ring, and the main pump can be corrected to the position before rotation by driving the top ring. When the top ring rotates clockwise around the Z axis, one or more of the X-direction adjustment device of the second column, the X-direction adjustment device of the third column, the Y-direction adjustment device of the first column, and the Y-direction adjustment device of the fourth column can be extended, and then the other X-direction adjustment devices and Y-direction adjustment devices are loosened. When the top ring rotates counterclockwise around the Z axis, one or more of the X-direction adjustment device of the first column, the X-direction adjustment device of the fourth column, the Y-direction adjustment device of the second column, and the Y-direction adjustment device of the third column can be extended, and then the other X-direction adjustment devices and Y-direction adjustment devices are loosened. After the rotation correction is completed, the X-direction adjustment device or the Y-direction adjustment device is tightened, the rotating adjustment device is loosened, and the above step S3 is repeated for horizontal adjustment until the required state is reached.

[0013] The present application provides a nuclear power main pump horizontal adjustment tool and a horizontal adjustment method. Compared with the prior art, the tool comprises: a top ring; a convex platform arranged on the top ring and symmetrically arranged along the top ring; a column in contact with the convex platform; an X-direction adjustment device arranged on the column and arranged along the tangent direction of the top ring; a Y-direction adjustment device arranged on the column and arranged along the tangent direction of the top ring; the X-direction adjustment device and the Y-direction adjustment device are perpendicular to each other; and a rotating adjustment device arranged on the column. The convex platform is symmetrically arranged on the top ring, and the X-direction adjustment device, the Y-direction adjustment device, and the rotating adjustment device are arranged on the column and in contact with the convex platform, so that the thrust of the adjustment device is applied to the top ring, and the structural rigidity of the column is fully utilized. When the X-direction adjustment device is adjusted, the Y-direction adjustment device is used to abut against the corresponding convex platform of the top ring to form a fixed guide rail to prevent rotation. Similarly, when the Y-direction adjustment device is adjusted, the X-direction adjustment device is used to guide the Y-direction adjustment device to prevent rotation. The rotating adjustment device can tightly abut against the top ring from the symmetric direction to further stabilize the position of the top ring and prevent rotation. The three adjustment devices enhance the stability of the adjustment process and solve the problems of rotation of the top ring and instability of the gravity center of the nuclear power main pump during the adjustment process. The present application provides a nuclear power main pump horizontal adjustment tool and a horizontal adjustment method, which overcome the problem of easy rotation of the existing adjustment tool, prevent rotation of the top ring and instability of the gravity center of the nuclear power main pump during the adjustment process, and enhance the stability of the adjustment process. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Fig. 1 A schematic diagram of a nuclear power plant main pump leveling tool provided in this application embodiment;

[0016] Fig. 2 This is a schematic diagram of a nuclear power plant main pump leveling tool provided in an embodiment of this application.

[0017] 1. Top ring; 2. Protruding platform; 3. Column; 4. X-axis adjustment device; 5. Y-axis adjustment device; 6. Rotation adjustment device. Detailed Implementation

[0018] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0019] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly set on the other component; when a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to the other component.

[0020] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "first", "second", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0021] In addition, the terms "first", "second", etc. are used only for descriptive purposes and should not be construed as implying or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified.

[0022] It should be noted that the structures, proportions, sizes, etc. shown in the drawings of the present application are only used to cooperate with the disclosed content, to be understood and read by those skilled in the art, and are not used to limit the conditions for implementing the present application, so they do not have technical significance. Any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effect and purpose that can be achieved by the present application, should still fall within the scope of the technical content disclosed by the present application.

[0023] As shown in Figs. 1-2 The present application provides a nuclear power main pump horizontal adjustment tool, compared with the prior art, comprising: a top ring 1; a convex platform 2 arranged on the top ring 1, the convex platform 2 is arranged symmetrically along the top ring 1; a column 3 in contact with the convex platform 2; an X-direction adjustment device 4 arranged on the column 3, the X-direction adjustment device 4 is arranged along the tangent direction of the top ring 1; a Y-direction adjustment device 5 arranged on the column 3, the Y-direction adjustment device 5 is arranged along the tangent direction of the top ring 1; the X-direction adjustment device 4 and the Y-direction adjustment device 5 are perpendicular to each other; a rotary adjustment device 6 arranged on the column 3. By symmetrically arranging the convex platform 2 on the top ring 1, and arranging the X-direction adjustment device 4, the Y-direction adjustment device 5 and the rotary adjustment device 6 on the column 3, which are in contact with the convex platform 2, the pushing force of the adjustment device on the top ring 1 is all applied to the top ring 1, and the structural rigidity of the column 3 is more fully played; when adjusting in the X-direction, the Y-direction adjustment device 5 is used to top the corresponding boss position of the top ring 1 to form a fixed guide rail to prevent rotation, and similarly when adjusting in the Y-direction, the X-direction adjustment device 4 guides it to prevent rotation; the rotary adjustment device 6 can tightly top the top ring 1 from the symmetric direction to further stabilize the position of the top ring 1 and prevent rotation; by arranging the adjustment device in three directions, the stability of the adjustment process is enhanced, and the problems of easy rotation of the top ring 1 and instability of the center of gravity of the nuclear power main pump during the adjustment process are solved.

[0024] Specifically, four columns 3 are symmetrically arranged around the top ring 1, the upper left is named column one, the upper right is named column two, the lower left is named column three, and the lower right is named column four; the X-direction adjustment device 4, the Y-direction adjustment device 5 and the rotary adjustment device 6 are arranged at the top end of each column 3; the contact part of the convex platform 2 with the Y-direction adjustment device 5 is perpendicular to the Y-direction, and the contact part of the convex platform 2 with the X-direction adjustment device 4 is perpendicular to the X-direction, which is used for guiding on one hand and as an anti-rotation force platform on the other hand.

[0025] The rotating adjusting device 6 is arranged between the X-direction adjusting device 4 and the Y-direction adjusting device 5. Since the X-direction adjusting device 4 and the Y-direction adjusting device 5 are perpendicular to each other, the included angle between the rotating adjusting device 6 and the X-direction adjusting device 4 and the Y-direction adjusting device 5 is an acute angle, which provides a thrust pointing to the center of the top ring 1, and tightens the top ring 1 when the top ring 1 rotates, thereby preventing the rotation.

[0026] The application also provides a horizontal adjustment method of a nuclear power main pump, which comprises the following steps: S1, adjusting the top ring 1 along the X-direction; S2, correcting the top ring 1 to the horizontal position when the top ring 1 rotates around the Z-axis; S3, adjusting the top ring 1 along the Y-direction; and S4, correcting the top ring 1 to the horizontal position when the top ring 1 rotates around the Z-axis. Since the adjustment of the top ring 1 along the X-direction will cause the gravity center of the top ring 1 to deviate and easily rotate around the Z-axis, and the adjustment of the top ring 1 along the Y-direction will cause the gravity center of the top ring 1 to deviate and easily rotate around the Z-axis, a laser range finder is arranged at a fixed position in the movement direction, the light spot of the laser range finder is marked on the fixed position of the main pump installation trolley, and the distance is detected by the laser range finder each time the operation is performed, the change value is the movement value in the movement direction, and if the rotation occurs, the light spot deviates from the initial mark, which is fed back to the horizontal adjustment tool for correction.

[0027] The step S1 comprises the following steps: the Y-direction adjusting device 5 is extended to tightly contact the corresponding convex platform 2; the X-direction adjusting device 4 on one side of the top ring 1 is shortened, and the X-direction adjusting device 4 on the other side of the top ring 1 is lengthened to push the top ring 1 to move along the X-direction; and the rotating adjusting device 6 keeps a gap with the outer arc surface of the top ring 1 during the adjustment. If the X-direction adjustment is needed, the Y-direction adjusting device 5 on each of the four columns 3 can be kept in contact with the convex platform 2 at the respective position, the X-direction adjusting device 4 at the second column 3 and the fourth column 3 is shortened, and the X-direction adjusting device 4 at the first column 3 and the third column 3 is lengthened to push the top ring 1 and drive the main pump to move horizontally to the right; or the X-direction adjusting device 4 at the second column 3 and the fourth column 3 is lengthened, and the X-direction adjusting device 4 at the first column 3 and the third column 3 is shortened to push the top ring 1 and drive the main pump to move horizontally to the left; and the four rotating adjusting devices 6 keep a gap of about 2 mm with the outer arc surface of the top ring 1 during the adjustment.

[0028] S2 includes: the rotating adjustment device 6 is in close contact with the outer circular surface of the top ring 1, the X-direction adjustment device 4 or the Y-direction adjustment device 5 with the extension force opposite to the rotating direction, the X-direction adjustment device 4 or the Y-direction adjustment device 5 with the loosening force same as the rotating direction, after the rotating correction is completed, the X-direction adjustment device 4 or the Y-direction adjustment device 5 is extended, so that the X-direction adjustment device 4 or the Y-direction adjustment device 5 is in close contact with the convex platform 2, and the rotating adjustment device 6 is loosened. If the top ring 1 rotates due to different operation, gravity center deviation or installation error, four rotating adjustment devices 6 can be kept in close contact with the outer circular surface of the top ring 1, the main pump is corrected to the position before rotation by driving the top ring 1, when rotating clockwise around the Z axis, one or more of the X-direction adjustment device 4 of the second column 3, the X-direction adjustment device 4 of the third column 3, the Y-direction adjustment device 5 of the first column 3 and the Y-direction adjustment device 5 of the fourth column 3 can be extended, and then the other X-direction adjustment devices 4 and Y-direction adjustment devices 5 are loosened, when the top ring 1 rotates counterclockwise around the Z axis, one or more of the X-direction adjustment device 4 of the first column 3, the X-direction adjustment device 4 of the fourth column 3, the Y-direction adjustment device 5 of the second column 3 and the Y-direction adjustment device 5 of the third column 3 can be extended, and then the other X-direction adjustment devices 4 and Y-direction adjustment devices 5 are loosened. After the rotating correction is completed, the X-direction adjustment device 4 or the Y-direction adjustment device 5 is tightened, the rotating adjustment device 6 is loosened, and the step S1 is repeated to adjust in the horizontal direction, until the required state is reached.

[0029] In the step S3, the X-direction adjustment device 4 is extended to be in close contact with the corresponding convex platform 2, the Y-direction adjustment device 5 on one side of the top ring 1 is shortened, and the Y-direction adjustment device 5 on the other side of the top ring 1 is extended to push the top ring 1 to move along the Y direction, and the rotating adjustment device 6 keeps a gap with the outer circular surface of the top ring 1 during the adjustment. If Y-direction adjustment is needed, the X-direction adjustment devices 4 on the four columns 3 can be kept in contact with the convex platforms 2 at respective positions, the Y-direction adjustment devices 5 at the positions of the third column 3 and the fourth column 3 are shortened, and the Y-direction adjustment devices 5 at the positions of the first column 3 and the second column 3 are extended to push the top ring 1 and drive the main pump to move horizontally downward, or the Y-direction adjustment devices 5 at the positions of the third column 3 and the fourth column 3 are extended, and the Y-direction adjustment devices 5 at the positions of the first column 3 and the second column 3 are shortened to push the top ring 1 and drive the main pump to move horizontally upward, and the four rotating adjustment devices 6 keep a gap of about 2 mm with the outer circular surface of the top ring 1 during the adjustment.

[0030] The step S4 comprises: the rotating adjustment device 6 is in close contact with the outer circular surface of the top ring 1; the X-direction adjustment device 4 or the Y-direction adjustment device 5 is stretched in the opposite direction of the rotation; the X-direction adjustment device 4 or the Y-direction adjustment device 5 is loosened in the same direction of the rotation; after the rotation correction is completed, the Y-direction adjustment device 5 or the X-direction adjustment device 4 is stretched, so that the X-direction adjustment device 4 or the Y-direction adjustment device 5 is in close contact with the convex platform 2; and the rotating adjustment device 6 is loosened. If the top ring 1 rotates due to the asynchronous operation, the center of gravity deviation or the installation error, the four rotating adjustment devices 6 can be kept in close contact with the outer circular surface of the top ring 1, so that the top ring 1 drives the main pump to be corrected to the position before the rotation; when the top ring 1 rotates clockwise around the Z axis, one or more of the X-direction adjustment device 4 of the second column 3, the X-direction adjustment device 4 of the third column 3, the Y-direction adjustment device 5 of the first column 3 and the Y-direction adjustment device 5 of the fourth column 3 can be stretched, and then the other X-direction adjustment devices 4 and Y-direction adjustment devices 5 are loosened; when the top ring 1 rotates counterclockwise around the Z axis, one or more of the X-direction adjustment device 4 of the first column 3, the X-direction adjustment device 4 of the fourth column 3, the Y-direction adjustment device 5 of the second column 3 and the Y-direction adjustment device 5 of the third column 3 can be stretched, and then the other X-direction adjustment devices 4 and Y-direction adjustment devices 5 are loosened. After the rotation correction is completed, the X-direction adjustment device 4 or the Y-direction adjustment device 5 is tightened, the rotating adjustment device 6 is loosened, and the above step S3 is repeated to adjust the horizontal direction until the required state is reached.

[0031] The above description of disclosed embodiments allows a person skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the application. Therefore, the present application will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A tool for leveling a nuclear power plant main pump, characterized in that, include: Top ring; The protruding platform is disposed on the top ring, and the protruding platform is symmetrically arranged along the top ring; The column that contacts the protruding platform; An X-axis adjustment device is installed on the column, and the X-axis adjustment device is arranged along the tangent direction of the top ring; A Y-axis adjustment device is provided on the column, and the Y-axis adjustment device is arranged along the tangent direction of the top ring; The X-axis adjustment device and the Y-axis adjustment device are perpendicular to each other; A rotation adjustment device is installed on the column.

2. The nuclear power plant main pump leveling tool according to claim 1, characterized in that, The rotation adjustment device is located between the X-axis adjustment device and the Y-axis adjustment device.

3. A method for horizontal adjustment of a nuclear power plant main pump, characterized in that, Based on the nuclear power plant main pump leveling tool according to claim 1 or 2, the method includes the following steps: S1 adjusts the top ring along the X direction; When the top ring rotates around the Z-axis as described in S2, it corrects the top ring to return to a horizontal position. S3 adjusts the top ring along the Y direction; When the top ring rotates around the Z-axis as described in S4, it corrects the top ring to return to a horizontal position.

4. The method for horizontal adjustment of a nuclear power plant main pump according to claim 3, characterized in that, Step S1 includes: The Y-axis adjustment device extends out and makes close contact with the corresponding protruding platform; Shorten the X-axis adjustment device on one side of the top ring, while extending the X-axis adjustment device on the other side of the top ring, and push the top ring to move along the X-axis; During the adjustment process, the rotation adjustment device maintains a gap with the outer arc surface of the top ring.

5. A method for horizontal adjustment of a nuclear power plant main pump according to claim 3, characterized in that, S2 includes: The rotation adjustment device is brought into close contact with the outer arc surface of the top ring; An X-axis adjustment device or a Y-axis adjustment device in which the elongation force is opposite to the rotation direction; An X-axis or Y-axis adjustment device in which the releasing force is in the same direction as the rotation; After rotational correction is completed, extend the X-axis adjustment device or the Y-axis adjustment device to make the X-axis adjustment device or the Y-axis adjustment device in close contact with the protruding platform; Release the rotation adjustment device.

6. A method for horizontal adjustment of a nuclear power plant main pump according to claim 3, characterized in that, Step S3 includes: The X-axis adjustment device extends out and makes close contact with the corresponding protruding platform; Shorten the Y-axis adjustment device on one side of the top ring, while extending the Y-axis adjustment device on the other side of the top ring, thereby pushing the top ring to move along the Y-axis; During the adjustment process, the rotation adjustment device maintains a gap with the outer arc surface of the top ring.

7. A method for horizontal adjustment of a nuclear power plant main pump according to claim 3, characterized in that, Step S4 includes: The rotation adjustment device is brought into close contact with the outer arc surface of the top ring; An X-axis adjustment device or a Y-axis adjustment device in which the elongation force is opposite to the rotation direction; An X-axis or Y-axis adjustment device in which the releasing force is in the same direction as the rotation; After rotational correction is completed, extend the Y-axis adjustment device or the X-axis adjustment device to make the X-axis adjustment device or the Y-axis adjustment device in close contact with the protruding platform; Release the rotation adjustment device.

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