Nuclear power main pump installation tool

Abstract

The invention provides a nuclear power main pump mounting tool, and relates to the technical field of nuclear power main pump mounting. The nuclear power main pump installation tool comprises a movable base, a plurality of reverse jacking mechanisms are installed on the movable base in the circumferential direction at intervals, the multiple reverse jacking mechanisms can extend downwards to lift the movable base and can adjust the levelness of the movable base, a rotary mechanism and a rotary driving mechanism are installed on the movable base, and the rotary driving mechanism drives the movable base to rotate. The rotation driving mechanism can drive the rotation mechanism to rotate, the jacking mechanism is installed on the rotation mechanism, and the jacking mechanism can jack the nuclear power main pump. Based on the technical scheme, the nuclear power main pump mounting tool is simple in structure, and posture adjustment of the nuclear power main pump mounting tool is facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of nuclear power main pump installation, and in particular to a nuclear power main pump installation tool. Background Art

[0002] The nuclear power main pump is installed in a small compartment. After installation, the gap between it and the compartment environment is only about 50mm. Its own weight ranges from about 70 to 100t. It is heavy and cannot be lifted with large lifting tools due to the compartment environment. Therefore, it is necessary to design a special nuclear power main pump installation tool. The nuclear power main pump installation tool needs to be able to receive the main pump in a limited space and then move it with the main pump. When it reaches the designated installation position, it needs to be adjusted to align the center of the main pump with the main pump cover above it, and adjust the 24 bolt holes of the main pump with the bolt holes of the main pump cover, and finally complete the lifting of the main pump.

[0003] The existing nuclear power main pump installation tool has a relatively complex structure. For example, the installation bracket disclosed in the patent document CN113119015A needs to be adjusted after the installation bracket is assembled, including the leveling of the base, the adjustment of the length of the four lower columns, the adjustment of the verticality of the four lower columns, the adjustment of the length of the four upper columns, the adjustment of the verticality of the four upper columns, the adjustment of the gap between the roller and the middle ring on the lateral reinforcement structure, the individual leveling of the four lifting bodies, and the overall leveling of the four lifting bodies. The adjustment of the posture of the entire bracket takes a lot of time, and it cannot be guaranteed that it is adjusted in place at one time. There is a risk of repeated adjustment, and the operation efficiency is low. Therefore, it is necessary to design a nuclear power main pump installation tool with a simple structure and convenient posture adjustment. Summary of the invention

[0004] In view of the above problems in the prior art, the present application proposes a nuclear power main pump installation tool, which has a simple structure and is easy to adjust its posture.

[0005] The present invention provides a nuclear power main pump installation tool, which includes a mobile base, on which a plurality of reverse lifting mechanisms are installed at intervals along the circumferential direction, and the plurality of reverse lifting mechanisms can extend downward to lift the mobile base respectively, and can adjust the horizontality of the mobile base; a rotary mechanism and a rotary drive mechanism are installed on the mobile base, the rotary drive mechanism can drive the rotary mechanism to rotate, and a lifting mechanism is installed on the rotary mechanism, and the lifting mechanism can lift the nuclear power main pump.

[0006] As a further improvement of the above technical solution:

[0007] The above-mentioned nuclear power main pump installation tool further has at least two horizontal adjustment mechanisms installed on the movable base at intervals along the circumferential direction, and each of the horizontal adjustment mechanisms can cooperate with each other to adjust the position of the movable base.

[0008] The above-mentioned nuclear power main pump installation tool, further, the jacking mechanism includes a support frame and a plurality of jacking components, the plurality of jacking components are installed on the support frame at intervals along the circumference of the support frame, and the plurality of jacking components can cooperate with each other to jack the nuclear power main pump.

[0009] The above-mentioned nuclear power main pump installation tool further comprises a plurality of support columns arranged on the rotating mechanism at intervals along the circumferential direction, and the extension direction of the support columns is perpendicular to the plane where the rotating mechanism is located, and two adjacent support columns are connected by reinforcing plates.

[0010] The above-mentioned nuclear power main pump installation tool, further, the jacking assembly includes a jacking drive member, the jacking drive member is installed on the upper end of the support column, the support column is also equipped with a guide member, the guide member is provided with a guide groove extending in the vertical direction, a limit ring is slidably installed in the guide groove, and the telescopic end of the jacking drive member can pass through the limit ring from bottom to top to connect with the jacking body.

[0011] The above-mentioned nuclear power main pump installation tool further comprises: a connecting plate is provided on the supporting column, and the end of the reinforcing plate is hingedly connected to the connecting plate.

[0012] The above-mentioned nuclear power main pump installation tool further comprises: the movable base includes a mounting base and a movable roller, the movable roller is installed on the mounting base, and the movable roller can be rotated and locked relative to the mounting base.

[0013] The above-mentioned nuclear power main pump installation tool, further, the reverse lifting mechanism, the rotary drive mechanism and the lifting mechanism are all driven by servo motors.

[0014] The above technical features can be combined in various suitable ways or replaced by equivalent technical features as long as the purpose of the present invention can be achieved.

[0015] A nuclear power main pump installation tool provided by the present invention has at least the following beneficial effects compared with the prior art: when the nuclear power main pump needs to be installed, the nuclear power main pump is first hoisted and placed on the jacking mechanism, and then the nuclear power main pump is moved to the bottom of the main pump cover through the mobile base, and then a plurality of reverse jacking mechanisms are respectively extended downward to lift the mobile base, and the horizontality of the mobile base is adjusted to make the main pump flange surface parallel to the main pump cover flange surface above it, and according to the alignment of the main pump flange hole and the main pump cover flange hole above it, according to the deflection direction and angle, the rotary drive mechanism drives the rotary mechanism to rotate so that the main pump flange hole is aligned with the main pump cover flange hole above it, and finally the jacking mechanism lifts the nuclear power main pump.

[0016] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0018] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings, wherein:

[0019] Figure 1 A schematic diagram showing the structure of a nuclear power main pump installation tool provided by an embodiment of the present invention is shown;

[0020] Figure 2 A schematic structural diagram of a support column of a nuclear power main pump installation tool provided in an embodiment of the present invention is shown.

[0021] In the drawings, like reference numerals are used for like parts. The drawings are not necessarily to scale.

[0022] Description of reference numerals:

[0023] 100-nuclear power main pump installation tool, 110-mobile base, 111-installation base, 112-mobile roller, 120-reverse lifting mechanism, 130-rotation mechanism, 140-lifting mechanism, 141-support frame, 142-lifting assembly, 143-support column, 144-reinforcement plate, 145-lifting drive member, 146-guide member, 147-guide groove, 148-limiting ring, 149-connecting plate, 150-horizontal adjustment mechanism. DETAILED DESCRIPTION

[0024] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0025] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0026] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0027] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0029] The present invention will be further described below in conjunction with the accompanying drawings.

[0030] The embodiment of the present invention provides a nuclear power main pump installation tool 100, which has a simple structure and is convenient for adjusting its posture.

[0031] See also Figure 1 and Figure 2 The embodiment of the present invention provides a nuclear power main pump installation tool 100, which includes a mobile base 110, on which a plurality of reverse lifting mechanisms 120 are installed at intervals along the circumferential direction. The plurality of reverse lifting mechanisms 120 can extend downward to lift the mobile base 110 respectively, and can adjust the horizontality of the mobile base 110. A rotary mechanism 130 and a rotary drive mechanism are installed on the mobile base 110. The rotary drive mechanism can drive the rotary mechanism 130 to rotate. A lifting mechanism 140 is installed on the rotary mechanism 130, and the lifting mechanism 140 can lift the nuclear power main pump.

[0032] When the nuclear power main pump needs to be installed, the nuclear power main pump is first hoisted and placed on the jacking mechanism 140, and then the nuclear power main pump is moved to the bottom of the main pump cover through the mobile base 110, and then multiple reverse jacking mechanisms 120 are extended downward to lift the mobile base 110, and the horizontality of the mobile base 110 is adjusted to make the main pump flange surface parallel to the main pump cover flange surface above it, and according to the alignment of the main pump flange hole and the main pump cover flange hole above it, according to the deflection direction and angle, the rotary drive mechanism drives the rotary mechanism 130 to rotate so that the main pump flange hole is aligned with the main pump cover flange hole above it, and finally the jacking mechanism 140 lifts the nuclear power main pump.

[0033] The nuclear power main pump installation tool 100 provided in the embodiment of the present invention, further, please refer to Figure 1 At least two horizontal adjustment mechanisms 150 are installed on the mobile base 110 at intervals along the circumference, and each horizontal adjustment mechanism 150 can cooperate with each other to adjust the position of the mobile base 110. When the nuclear power main pump installation tool 100 moves to the installation position, the telescopic end of the horizontal adjustment mechanism 150 is installed on the ground (or installed on the wall of the compartment), and the nuclear power main pump installation tool 100 is pushed to move together with the main pump until the center of the main pump is adjusted to completely coincide with the installation position. In this embodiment, a horizontal adjustment mechanism 150 is installed in the orthogonal direction of the mobile base 110 to achieve position adjustment in the X direction and the Y direction. The horizontal adjustment mechanism 150 is a hydraulic cylinder.

[0034] The nuclear power main pump installation tool 100 provided in the embodiment of the present invention is specifically referred to Figure 1 and Figure 2The lifting mechanism 140 includes a support frame 141 and a plurality of lifting components 142. The plurality of lifting components 142 are installed on the support frame 141 at intervals along the circumference of the support frame 141. The plurality of lifting components 142 can cooperate with each other to lift the nuclear power main pump. The support frame 141 includes a plurality of support columns 143 arranged on the rotary mechanism 130 at intervals along the circumference, and the extension direction of the support columns 143 is perpendicular to the plane where the rotary mechanism 130 is located. Two adjacent support columns 143 are supported and connected by a reinforcing plate 144, and the reinforcing plate 144 can reinforce the support columns 143. The lifting assembly 142 includes a lifting drive 145, which is installed at the upper end of a support column 143. A guide 146 is also installed on the support column 143. A guide groove 147 extending in the vertical direction is provided on the guide 146. A limit ring 148 is slidably installed in the guide groove 147. The telescopic end of the lifting drive 145 can pass through the limit ring 148 from bottom to top and connect with the lifting body. When the telescopic end of the lifting drive 145 is extended and lifted, the limit ring 148 slides in the guide groove 147, thereby enhancing the lifting stability of the telescopic end of the lifting drive 145. In this embodiment, a connecting plate 149 is provided on the support column 143, and the end of the reinforcing plate 144 is hingedly connected to the connecting plate 149.

[0035] The nuclear power main pump installation tool 100 provided in the embodiment of the present invention is specifically referred to Figure 1 The mobile base 110 includes a mounting base 111 and a moving roller 112. The moving roller 112 is mounted on the mounting base 111, and the moving roller 112 can be rotated and locked relative to the mounting base 111. During the movement of the nuclear power main pump installation tool 100, when the moving direction needs to be changed, multiple reverse jacking mechanisms 120 are respectively extended downward to lift the mobile base 110, so that the moving roller 112 is off the ground, and then the direction of the moving roller 112 is rotated, and then the moving roller 112 is locked, and the multiple reverse jacking mechanisms 120 are retracted, and the nuclear power main pump installation tool 100 is dropped together with the main pump, and continues to be grounded by the moving roller 112, and continues to move. In this embodiment, the reverse jacking mechanism 120, the rotary drive mechanism and the jacking mechanism 140 are all driven by servo motors.

[0036] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0037] Although the present invention is described herein with reference to specific embodiments, it should be understood that these embodiments are merely examples of the principles and applications of the present invention. It should therefore be understood that many modifications may be made to the exemplary embodiments and that other arrangements may be devised without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that the various dependent claims and features described herein may be combined in a manner different from that described in the original claims. It should also be understood that features described in conjunction with individual embodiments may be used in other described embodiments.

Claims

1. A nuclear power main pump installation tool, characterized in that: The nuclear power main pump installation tool includes a mobile base, on which a plurality of reverse lifting mechanisms are installed at intervals along the circumferential direction. The plurality of reverse lifting mechanisms can extend downward to lift the mobile base respectively, and can adjust the horizontality of the mobile base. A rotary mechanism and a rotary drive mechanism are installed on the mobile base. The rotary drive mechanism can drive the rotary mechanism to rotate. A lifting mechanism is installed on the rotary mechanism, and the lifting mechanism can lift the nuclear power main pump.

2. The nuclear power main pump installation tool according to claim 1, characterized in that: At least two horizontal adjustment mechanisms are installed on the movable base at intervals along the circumferential direction, and the horizontal adjustment mechanisms can cooperate with each other to adjust the position of the movable base.

3. The nuclear power main pump installation tool according to claim 1, characterized in that: The lifting mechanism includes a support frame and a plurality of lifting components. The plurality of lifting components are installed on the support frame at intervals along the circumference of the support frame. The plurality of lifting components can cooperate with each other to lift the nuclear power main pump.

4. The nuclear power main pump installation tool according to claim 3 is characterized in that: The support frame includes a plurality of support columns which are circumferentially spaced apart and arranged on the rotating mechanism, and the extension direction of the support columns is perpendicular to the plane where the rotating mechanism is located, and two adjacent support columns are connected and supported by a reinforcing plate.

5. The nuclear power main pump installation tool according to claim 4, characterized in that: The jacking assembly includes a jacking drive member, which is installed on the upper end of the support column. A guide member is also installed on the support column. The guide member is provided with a guide groove extending in a vertical direction. A limit ring is slidably installed in the guide groove. The telescopic end of the jacking drive member can pass through the limit ring from bottom to top to connect with the jacking body.

6. The nuclear power main pump installation tool according to claim 4, characterized in that: A connecting plate is provided on the supporting column, and the end of the reinforcing plate is hingedly connected to the connecting plate.

7. The nuclear power main pump installation tool according to claim 1, characterized in that: The movable base comprises a mounting base and a movable roller, wherein the movable roller is mounted on the mounting base, and the movable roller can rotate and be locked relative to the mounting base.

8. The nuclear power main pump installation tool according to claim 1, characterized in that: The reverse lifting mechanism, the rotary drive mechanism and the lifting mechanism are all driven by servo motors.

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