Jacking mechanism for mounting nuclear power main pump

Abstract

The utility model provides a jacking mechanism for nuclear power main pump installation, and relates to the technical field of nuclear power main pump installation. The jacking mechanism used for nuclear power main pump installation comprises a supporting frame and a plurality of jacking assemblies, the multiple jacking assemblies are installed on the supporting frame in the circumferential direction of the supporting frame at intervals, each jacking assembly comprises a jacking driving piece, the jacking driving pieces are installed on the supporting frame, and a guiding piece is further installed on the supporting frame; a guide groove extending in the vertical direction is formed in the guide piece, a limiting ring is slidably installed in the guide groove, and the telescopic end of the jacking driving piece can penetrate through the limiting ring from bottom to top to be connected with the jacking body. Based on the technical scheme of the utility model, the jacking mechanism for mounting the nuclear power main pump can ensure the jacking verticality, so that a bolt hole of the jacked nuclear power main pump is aligned with a bolt hole of a main pump housing.

Description

Technical Field

[0001] The utility model relates to the technical field of nuclear power main pump installation, in particular to a jacking mechanism used for installing a nuclear power main pump. Background Art

[0002] The nuclear power main pump is installed in a small compartment. After installation, the clearance between the pump and the compartment environment is only about 50mm. The pump weighs approximately 70 to 100 tons. Due to the heavy weight and the compartment environment, large lifting tools cannot be used. Therefore, a specialized nuclear power main pump installation tool is required. The nuclear power main pump installation tool needs to be able to receive the main pump within the limited space and then move it with the main pump. Once it reaches the designated installation location, it needs to be adjusted to align the center of the main pump with the main pump cover above it, and to align the 24 bolt holes of the main pump with the bolt holes of the main pump cover. Finally, the main pump is lifted.

[0003] Since the nuclear power main pump itself is heavy and the verticality of the jacking needs to be ensured so that the bolt holes of the nuclear power main pump after jacking are aligned with the bolt holes of the main pump cover, it is necessary to design a jacking mechanism for the installation of the nuclear power main pump, which can ensure the verticality of the jacking so that the bolt holes of the nuclear power main pump after jacking are aligned with the bolt holes of the main pump cover. Utility Model Content

[0004] In response to the above-mentioned problems in the prior art, this application proposes a jacking mechanism for installing a nuclear power main pump, which can ensure the verticality of the jacking so that the bolt holes of the nuclear power main pump after jacking are aligned with the bolt holes of the main pump cover.

[0005] The utility model provides a jacking mechanism for installing a nuclear power main pump, the jacking mechanism for installing a nuclear power main pump 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, the jacking component includes a jacking drive member, the jacking drive member is installed on the support frame, and a guide member is also installed on the support frame, the guide member is provided with a guide groove extending in a 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 be connected with the jacking body.

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

[0007] The above-mentioned jacking mechanism for installing the nuclear power main pump further comprises a plurality of support columns arranged at intervals along the circumferential direction, the jacking drive member is installed at the top end of the support column, the guide member is installed on the support column, and two adjacent support columns are connected by a reinforcing plate.

[0008] The above-mentioned jacking mechanism for installing a nuclear power main pump further has a connecting plate provided on the supporting column, and the end of the reinforcing plate is hingedly connected to the connecting plate.

[0009] The above-mentioned jacking mechanism for installing the nuclear power main pump further has a mounting seat provided on the outer wall of the support column, a limiting groove extending in the vertical direction is opened on the mounting seat, and the guide member is limited in the limiting groove and fixed to the mounting seat by bolts.

[0010] 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.

[0011] The utility model provides a jacking mechanism for installing a nuclear power main pump, which has at least the following beneficial effects compared with the existing technology: when it is necessary to jack up the nuclear power main pump, the telescopic ends of each jacking drive component extend upward synchronously, driving the limit ring to slide in the guide groove. The limit ring can enhance the jacking stability of the telescopic end of the jacking drive component, ensuring that the telescopic end of the jacking drive component is always vertically upward, thereby ensuring that the bolt holes of the nuclear power main pump after jacking are aligned with the bolt holes of the main pump cover.

[0012] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0014] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings, wherein:

[0015] Figure 1 Shows a schematic structural diagram of a nuclear power main pump installation tool provided by an embodiment of the present invention;

[0016] Figure 2 A schematic structural diagram of a support column of a jacking mechanism for installing a nuclear power main pump provided by an embodiment of the present invention is shown.

[0017] In the drawings, like reference numerals are used for like parts, but the drawings are not necessarily true to scale.

[0018] Description of reference numerals:

[0019] 100-Nuclear power main pump installation tool, 110-Mobile base, 111-Mounting base, 112-Mobile roller, 120-Reverse jacking mechanism, 130-Slewing mechanism, 140-Jacking mechanism, 141-Support frame, 142-Jacking assembly, 143-Support column, 144-Reinforcement plate, 145-Jacking drive, 146-Guide, 147-Guide groove, 148-Limiting ring, 149-Connecting plate, 150-Horizontal adjustment mechanism. DETAILED DESCRIPTION

[0020] The following describes embodiments of the present invention in detail. Examples of the embodiments 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 intended only to explain the present invention and are not to be construed as limiting the present invention.

[0021] 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 to 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 device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0023] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0024] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0025] The present invention will be further described below with reference to the accompanying drawings.

[0026] The embodiment of the present utility model provides a jacking mechanism 140 for installing a nuclear power main pump, which can ensure the verticality of the jacking so that the bolt holes of the nuclear power main pump after jacking are aligned with the bolt holes of the main pump cover.

[0027] The jacking mechanism 140 for installing a nuclear power main pump is applied to a nuclear power main pump installation tool 100, see Figure 1 and Figure 2 The nuclear power main pump installation tool 100 includes a mobile base 110, and a plurality of reverse jacking mechanisms 120 are installed on the mobile base 110 at intervals along the circumferential direction. The plurality of reverse jacking 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 jacking mechanism 140 is installed on the rotary mechanism 130, and the jacking mechanism 140 can lift the nuclear power main pump.

[0028] See also Figure 1 and Figure 2 The embodiment of the present invention provides a jacking mechanism 140 for installing a nuclear power main pump. The jacking mechanism 140 for installing a nuclear power main pump includes a support frame 141 and multiple jacking components 142. The multiple jacking components 142 are installed on the support frame 141 at circumferential intervals. The jacking components 142 include a jacking drive member 145. The jacking drive member 145 is installed on the support frame 141. A guide member 146 is also installed on the support frame 141. The guide member 146 is provided with a guide groove 147 extending in a vertical direction. A limit ring 148 is slidably installed in the guide groove 147. The telescopic end of the jacking drive member 145 can pass through the limit ring 148 from bottom to top to be connected with the jacking body.

[0029] When it is necessary to lift the nuclear power main pump, the telescopic ends of each lifting drive component 145 extend upward synchronously, driving the limit ring 148 to slide in the guide groove 147. The limit ring 148 can enhance the lifting stability of the telescopic end of the lifting drive component 145, ensuring that the telescopic end of the lifting drive component 145 is always vertically upward, thereby ensuring that the bolt holes of the nuclear power main pump after jacking are aligned with the bolt holes of the main pump cover.

[0030] The embodiment of the present invention provides a jacking mechanism 140 for installing a nuclear power main pump. For further information, please refer to Figure 1 and Figure 2 The support frame 141 includes a plurality of support columns 143 spaced apart along the circumference. A lifting drive member 145 is mounted on the top of the support column 143. A guide member 146 is mounted on the support column 143. Adjacent support columns 143 are connected by a reinforcement plate 144, which can reinforce the support columns 143. In this embodiment, a connecting plate 149 is provided on the support column 143, and the end of the reinforcement plate 144 is hingedly connected to the connecting plate 149. A mounting seat is provided on the outer wall of the support column 143. The mounting seat is provided with a limiting groove extending in the vertical direction. The guide member 146 is limited in the limiting groove and is fixed to the mounting seat by bolts. The limiting groove can ensure the verticality of the guide member 146, thereby ensuring that the guide groove 147 is always vertically upward.

[0031] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" 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 can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0032] Although the present invention is described herein with reference to specific embodiments, it should be understood that these embodiments are merely illustrative of the principles and applications of the present invention. It should be understood that many modifications may be made to the illustrative 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 ways other than those described in the original claims. It should also be understood that features described in conjunction with individual embodiments may be employed in conjunction with other described embodiments.

Claims

1. A jacking mechanism for installing a nuclear power main pump, characterized in that: The jacking mechanism for installing a nuclear power main pump includes a support frame and multiple jacking components. The multiple jacking components are installed on the support frame at circumferential intervals along the support frame. The jacking component includes a jacking drive component, which is installed on the support frame. A guide component is also installed on the support frame. The guide component 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 component can pass through the limit ring from bottom to top to connect with the jacking body.

2. The jacking mechanism for installing a nuclear power main pump according to claim 1 is characterized in that: The support frame includes a plurality of support columns arranged at intervals along the circumferential direction, the jacking drive member is installed on the top of the support column, the guide member is installed on the support column, and two adjacent support columns are supported and connected by a reinforcement plate.

3. The jacking mechanism for installing a nuclear power main pump according to claim 2 is 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.

4. The jacking mechanism for installing a nuclear power main pump according to claim 2, characterized in that: A mounting seat is provided on the outer side wall of the support column. A limiting groove extending in a vertical direction is provided on the mounting seat. The guide member is limited in the limiting groove and is fixed to the mounting seat by bolts.

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