Foundation bolt installation auxiliary tool and foundation bolt installation method

Abstract

The invention relates to the field of equipment installation, and provides a foundation bolt installation auxiliary tool and a foundation bolt installation method.The foundation bolt installation auxiliary tool comprises a first half body, a second half body and a lock catch, the first half body is provided with a first notch, and the first notch is used for containing a screw of a foundation bolt; the second half body is hinged to the first half body, a second notch is formed in the first half body and used for containing a screw of the foundation bolt, and a locking hole axially fixed to the screw is defined by the first notch and the second notch; the lock catch is used for locking the first half body and the second half body. According to the scheme, the first half body and the second half body can axially lock the screw rod, and then after the first half body and the second half body are attached to the base, the pouring stability of the foundation bolt can be kept. According to the foundation bolt perpendicularity adjusting device, the time for adjusting the perpendicularity of the foundation bolt is shortened, the perpendicularity of the foundation bolt is effectively guaranteed, the working efficiency and the installation quality are improved, and rework losses caused by the perpendicularity problem of the foundation bolt are reduced.

Description

Technical Field

[0001] The invention relates to the field of equipment installation, and in particular to an anchor bolt installation auxiliary tool and an anchor bolt installation method. Background Art

[0002] There are many auxiliary equipments in pressurized water reactor nuclear power plants that need secondary grouting. During the secondary grouting process, according to the grouting process requirements, the grouting material needs to be vibrated or impacted with a vibrating rod. Since there is a certain gap between the anchor bolts and the holes in the equipment base, the anchor bolts are prone to slight deviation and tilt. After the secondary grouting maintenance is completed and the anchor bolts are tightened, a gap is generated between the nut and the gasket, resulting in the anchor bolts being tightened in a state that does not meet the national standard requirements.

[0003] In the prior art, temporary fixation of bolts is usually performed by filling temporary wires or pads in the gaps between the base plate bolt holes and the anchor bolts. However, the temporary filling wires and pads are difficult to fill before grouting and to remove after grouting. In actual filling, it is difficult to ensure that there are no gaps or the gaps are uniform in all directions. When the secondary grouting material is vibrated, the fillings are easy to move, causing the bolts to tilt. Summary of the invention

[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide an auxiliary tool for installing anchor bolts and an anchor bolt installation method to ensure the stability of the anchor bolts during grouting.

[0005] In order to achieve the above-mentioned purpose and other related purposes, the present invention provides an auxiliary tool for installing anchor bolts, which is applied to anchor bolts of nuclear power equipment, comprising:

[0006] A first half body, wherein a first notch is provided on the first half body, and the first notch is used to accommodate a screw rod of the anchor bolt;

[0007] A second half body is hinged to the first half body, the first half body is provided with a second notch, the second notch is used to accommodate the screw of the anchor bolt, and the first notch and the second notch together form a locking hole axially fixed to the screw;

[0008] A lock buckle is used to lock the first half body and the second half body.

[0009] In an optional embodiment of the present invention, at least one end surface of the anchor bolt installation auxiliary tooling in the direction of the center of the locking hole is a plane, and the plane is perpendicular to the center of the locking hole.

[0010] In an optional embodiment of the present invention, the locking hole is a threaded hole.

[0011] In an optional embodiment of the present invention, the first half body and the second half body form a complete hexagonal nut structure.

[0012] In an optional embodiment of the present invention, the lock buckle is arranged at a free end of the first half body and / or the second half body.

[0013] In an optional embodiment of the present invention, the free ends of the first half body and the second half body are located on the same straight side of the hexagonal nut structure.

[0014] In an optional embodiment of the present invention, both the first notch and the second notch are semicircular notches.

[0015] In an optional embodiment of the present invention, the first half body and the second half body have the same shape.

[0016] In an optional embodiment of the present invention, the lock is a hasp or a latch.

[0017] The present invention also proposes a method for installing anchor bolts, which is applied to a nuclear power device installed on a mounting platform, wherein the nuclear power device includes a base, and the mounting platform is provided with a casting cavity for accommodating the anchor bolts, comprising the following steps:

[0018] Passing the foundation bolts through the base of the nuclear power equipment and placing them in the casting cavity;

[0019] Install the above-mentioned anchor bolt installation auxiliary tooling on the screw rod and make the anchor bolt installation auxiliary tooling fit the lower side of the base;

[0020] Grouting is performed on the casting cavity and a height space is reserved for the auxiliary tooling for installing the anchor bolts;

[0021] Unlock the lock and remove the auxiliary fixture for installing the anchor bolts;

[0022] The pouring cavity is grout-casted until it is filled to complete the installation.

[0023] In an optional embodiment of the present invention, an observation window for observing oil is provided on the target section upstream of the second check valve.

[0024] The present invention provides an auxiliary fixture for installing anchor bolts and an anchor bolt installation method. In the above scheme, the first half body and the second half body can axially lock the screw rod, and then the first half body and the second half body are fitted with the base to keep the anchor bolt stable during casting. The time for adjusting the verticality of the anchor bolt is reduced, and the verticality of the anchor bolt is effectively guaranteed, the work efficiency and installation quality are improved, and the rework loss caused by the verticality problem of the anchor bolt is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0026] Figure 1 It is a closed schematic diagram of an auxiliary tooling for installing anchor bolts in a specific embodiment of the present invention;

[0027] Figure 2 It is a schematic diagram of opening the auxiliary tooling for installing the anchor bolts in a specific embodiment of the present invention;

[0028] Figure 3 The figure is a flow chart of a method for installing anchor bolts in a specific embodiment of the present invention.

[0029] Figure 4 The figure is a schematic diagram of the installation position of the auxiliary tooling for installing the anchor bolts in a specific embodiment of the present invention.

[0030] Explanation of the reference numerals: 1. screw; 2. base; 3. casting cavity; 10. first half body; 11. first notch; 20. second half body; 21. second notch; 30. lock. DETAILED DESCRIPTION

[0031] The following describes the embodiments of the present invention by specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0032] It should be noted that the illustrations provided in the following embodiments are only used to illustrate the basic concept of the present invention in a schematic manner, and thus the illustrations only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0033] The secondary grouting method is to reserve holes for anchor bolts in the foundation before pouring the foundation. When installing the equipment, the anchor bolts are installed in the reserved holes and concrete or cement mortar is poured to make the anchor bolts firm. Its advantages are that the anchor bolts are easy to adjust and easy to install the equipment.

[0034] When pouring the concrete foundation, pre-set holes for the anchor bolts are set in appropriate locations. These pre-set holes are usually determined according to the design requirements of the equipment or structure and the size of the anchor bolts to ensure accuracy and reliability during subsequent installation.

[0035] When the equipment is installed, the anchor bolts are inserted into the reserved holes. These bolts are usually connected to the base or bracket of the equipment through nuts or other fixings. The selection and installation of anchor bolts usually need to comply with relevant standards and design specifications to ensure that they can withstand the loads and working conditions required by the equipment.

[0036] After the installation of the anchor bolts is completed, secondary grouting is performed in the reserved holes. This step usually uses concrete or cement mortar to fill the reserved holes and fix the anchor bolts. The selection of grouting materials depends on the specific project requirements and design standards to ensure the final installation firmness and stability.

[0037] Although the use of temporary fillers in the prior art can partially alleviate the problem of the tilting of the anchor bolts, it also has some obvious disadvantages.

[0038] Filling the gap between the anchor bolt and the base plate hole with fillers such as wire or pads is not easy before grouting, and the precise position and quantity of the fillers need to be ensured. After grouting, since the fillers may solidify or be covered by the grouting material, the process of removing the fillers will be very difficult, and time-consuming and cumbersome methods may be required, and even some equipment may need to be dismantled.

[0039] Due to the shape and size changes between the anchor bolts and the base holes, as well as the variability of the filler, it is difficult to ensure uniform filling in all directions without gaps during the actual filling process. Uneven filling may cause the anchor bolts to still deflect during the grouting process or the grouting material may not fully fill the gap, affecting the installation quality and stability.

[0040] During vibration or grouting, the filler can easily move or loosen due to vibration, which may cause the anchor bolt to tilt or shift again. During the vibration process, the instability of the filler will increase the uncertainty of the installation of the anchor bolt, making it difficult to meet the tightening state required by national standards.

[0041] Although temporary fillings can fill the gap between the anchor bolts and the base holes to a certain extent, their operability, uncertainty in filling effect, and stability issues during vibration will limit their application in engineering practice.

[0042] like Figure 1 , 2As shown, in order to solve the problem of tilting and tightening of anchor bolts, the present invention proposes an auxiliary tool for installing anchor bolts, which is applied to anchor bolts of nuclear power equipment, and includes a first half body 10, a second half body 20 and a lock 30:

[0043] The first half body 10 is provided with a first notch 11, which is used to accommodate the screw rod 1 of the anchor bolt. The design of this notch can ensure that the screw rod 1 of the anchor bolt can be accurately inserted and fixed in the tooling for subsequent installation steps.

[0044] The second half body 20 is hinged to the first half body 10. The first half body 10 is provided with a second notch 21. The second notch 21 is used to accommodate the screw rod 1 of the anchor bolt. The first notch 11 and the second notch 21 together form a locking hole axially fixed to the screw rod 1. Similar to the first notch 11, the second notch 21 is also used to accommodate the screw rod 1 of the anchor bolt. The two notches form a locking hole when combined. The hole is fixed along the axial direction of the screw rod 1 to ensure that the position and direction of the screw rod 1 will not be offset. Among them, the hinge axis is a hinge, which is a mechanical connector that can be used to connect two parts and allow them to rotate relative to each other. In this case, the hinge is used as a hinge axis connecting the first half body 10 and the second half body 20, so that they can rotate relative to each other, thereby realizing the opening and closing operation of the tooling.

[0045] The lock buckle 30 is used to lock the first half body 10 and the second half body 20. When the anchor bolt needs to be fixed, the operator can use the lock buckle 30 to firmly lock the first half body 10 and the second half body 20 together. This process ensures the stability and reliability of the tooling when installing the anchor bolt and prevents unnecessary movement. In the case of removing the anchor bolt, the operator can easily unlock the lock buckle 30 and separate the first half body 10 and the second half body 20. This design makes the installation process of the anchor bolt more flexible and convenient, and the anchor bolt can be disassembled and assembled according to actual needs without affecting the structure and function of the tooling itself.

[0046] In an optional embodiment of the present invention, the lock buckle 30 is a buckle or a latch. Through the buckle, the operator can quickly and safely complete the assembly and disassembly of the tooling. The buckle can be a flat buckle, a long buckle, a spring buckle, an adjustable buckle, a car buckle, a bridge buckle, a luggage buckle, a self-locking buckle, etc. The buckle is usually used for the rapid fixation and release of two parts. In this tooling, the buckle can be used to lock the first half 10 and the second half 20 tightly together to ensure that they remain in a stable connection state during the installation of the anchor bolt. The latch is another common fixing member used to fix mechanical parts or components. In this tooling, the latch can be used to ensure the firm connection of the first half 10 and the second half 20 to prevent them from loosening or moving during the installation of the anchor bolt.

[0047] In an optional embodiment of the present invention, at least one end face of the anchor bolt installation auxiliary tooling in the direction of the center of the locking hole is a plane, and the plane is perpendicular to the center of the locking hole. This design ensures that when the plane end face of the anchor bolt installation auxiliary tooling fits with the plane of the base 2, the installation position and direction of the screw 1 can remain vertical. This helps to ensure the installation accuracy and stability of the equipment or structure. With such a design, when installing the anchor bolt, the operator can effectively ensure the verticality of the screw 1 by simply fitting the plane end face of the anchor bolt installation auxiliary tooling with the plane of the base 2, thereby improving the accuracy and efficiency of the installation.

[0048] In an optional embodiment of the present invention, the locking hole is a threaded hole. The design of the threaded hole makes the installation process simpler and more accurate. Through the threaded hole, the operator can directly connect the anchor bolt and the threaded hole to ensure that the installation position and direction of the anchor bolt meet the requirements.

[0049] like Figure 1 As shown, the first half body 10 and the second half body 20 constitute a complete hexagonal nut structure. In this way, a hexagonal nut can be directly cut into the first half body 10 and the second half body 20. Hexagonal nuts are conventional standard parts with the advantages of large-scale production and low cost. The cost of manufacturing tooling by modifying standard parts is usually lower than that of custom design and production. Using ready-made hexagonal nuts, only cutting and welding operations are required, without the need to design and manufacture new special parts from scratch. This simplifies the manufacturing process and shortens the production cycle. The modified tooling can adapt to anchor bolts of different specifications and sizes. It only needs to select suitable hexagonal nuts for modification according to specific needs. Since common standard parts are used, maintenance and replacement are more convenient. If parts need to be repaired or replaced, standard hexagonal nuts can be purchased for replacement without the need to customize new special parts.

[0050] like Figure 1 , 2As shown, the lock buckle 30 is arranged at the free end of the first half body 10 and / or the second half body 20. The lock buckle 30 is directly arranged at the free end, avoiding complicated additional components or operation steps, making the tool design more concise and easy to understand and operate.

[0051] like Figure 1 As shown, the free ends of the first half body 10 and the second half body 20 are located on the same straight side of the hexagonal nut structure. The hexagonal nut has six sides and six corners. The six corners of the hexagonal nut are usually sharp and not suitable for installing the lock buckle 30 or other fixings. The side of the hexagonal nut can provide a plane. By designing the free ends of the first half body 10 and the second half body 20 on the side of the hexagonal nut, the lock buckle 30 can be installed on a flat surface, which is more convenient and reliable. When installing the anchor bolts, the operator can more easily fix and release the tooling through the lock buckle 30 because the lock buckle 30 is located on a flat side, which makes the operation simpler and faster.

[0052] like Figure 1 , 2 As shown, the first notch 11 and the second notch 21 are both semicircular notches. The semicircular notch ensures that there is no closing design at the opening of the notch, and can directly accommodate the cylindrical screw 1. When using the tooling, the operator can more easily insert the screw 1 into the semicircular notch without excessive adjustments or worrying about the instability of the screw 1, simplifying the installation process.

[0053] like Figure 1 , 2 As shown, the first half body 10 and the second half body 20 have the same shape. The same shape design allows the first half body 10 and the second half body 20 to be manufactured using the same mold or processing technology, simplifying the production process and reducing manufacturing costs. Due to the same shape, the first half body 10 and the second half body 20 can be used interchangeably, increasing the versatility and flexibility of the tooling. This means that the spare parts inventory can be reduced, and it is easier to replace or repair when necessary. : Designs of the same shape are usually easier to understand and operate, making the design of the tooling more concise and efficient.

[0054] like Figure 3 As shown, the present invention also proposes a method for installing anchor bolts, which is applied to nuclear power equipment installed on a mounting platform, wherein the nuclear power equipment includes a base 2, and the mounting platform is provided with a casting cavity 3 for accommodating the anchor bolts, comprising the following steps:

[0055] S1. Pass the anchor bolts through the base 2 of the nuclear power equipment and place them in the casting cavity 3. Pass the anchor bolts through the base 2 of the nuclear power equipment and install them inside the casting cavity 3 reserved on the mounting platform. This step ensures that the bolts are correctly positioned at the location where concrete will be poured in the future.

[0056] S2, install the anchor bolt installation auxiliary tooling on the screw rod 1 and make the anchor bolt installation auxiliary tooling fit the lower side of the base 2. Figure 4 As shown, a specially designed anchor bolt installation auxiliary tool is installed on the anchor bolt and made to fit the lower side of the base 2. The function of this tool is to support and maintain the verticality and stability of the anchor bolt during the pouring process.

[0057] S3, grouting is performed on the casting cavity 3 and a height space is reserved for the auxiliary fixture for installing the anchor bolts. The reserved space is convenient for removing the auxiliary fixture for installing the anchor bolts.

[0058] S4, unfasten the lock 30 and remove the auxiliary fixture for installing the anchor bolt. You can wait for the concrete to solidify slightly, unfasten the lock 30 of the auxiliary fixture for installing the anchor bolt, and then remove it. The purpose of doing so is to remove the fixture after the concrete solidifies slightly to maintain the verticality and position stability of the anchor bolt. The pre-solidified concrete will provide a certain support for the anchor bolt, which helps to ensure its correct installation position.

[0059] S5, grouting the casting cavity 3 until the casting cavity 3 is filled to complete the installation. Finally, the casting cavity 3 is completely grouted until the casting cavity 3 is filled to complete the installation of the anchor bolt. This ensures that the anchor bolt is fixed in the concrete and provides the necessary structural support and stability.

[0060] In summary, the present invention provides an auxiliary fixture for installing anchor bolts and an anchor bolt installation method. In the above scheme, the first half body 10 and the second half body 20 can axially lock the screw rod 1, and then the first half body 10 and the second half body 20 can keep the anchor bolt stable during casting after being fitted with the base 2. The time for adjusting the verticality of the anchor bolt is reduced, and the verticality of the anchor bolt is effectively guaranteed, the work efficiency and installation quality are improved, and the rework loss caused by the verticality problem of the anchor bolt is reduced.

[0061] The above embodiments are only illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with this technology may modify or change the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the relevant technical field without departing from the spirit and technical ideas disclosed by the present invention should still be covered by the claims of the present invention. Efficiently realize the connection between the high voltage of the motor and the high voltage of the controller, small size, oil-resistant sealing design, reliable sealing of the controller cavity and the motor cavity, oil cooling design of the anchor bolt installation auxiliary tooling and the anchor bolt installation method, effectively reduce the temperature, achieve greater flow and increase product life.

[0062] In the description herein, many specific details, such as examples of components and / or methods, are provided to provide a complete understanding of embodiments of the present invention. However, those skilled in the art will recognize that embodiments of the present invention may be practiced without one or more of the specific details or with other devices, systems, components, methods, components, materials, parts, etc. In other cases, well-known structures, materials, or operations are not specifically shown or described in detail to avoid obscuring aspects of embodiments of the present invention.

[0063] References throughout this specification to "one embodiment," "an embodiment," or "a specific embodiment" mean that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the invention, and not necessarily in all embodiments. Thus, various appearances of the phrases "in one embodiment," "in an embodiment," or "in a specific embodiment" in different places throughout this specification do not necessarily refer to the same embodiment. In addition, the particular features, structures, or characteristics of any specific embodiment of the invention may be combined with one or more other embodiments in any suitable manner. It should be understood that other variations and modifications of the embodiments of the invention described and illustrated herein may be possible in light of the teachings herein and are to be considered part of the spirit and scope of the invention.

[0064] It should also be understood that one or more of the elements shown in the figures may also be implemented in a more separate or more integrated manner, or even removed because they are inoperable in certain circumstances or provided because they may be useful depending on the application.

[0065] In addition, unless otherwise explicitly indicated, any marking arrows in the drawings should be regarded as exemplary only and not limiting. In addition, unless otherwise indicated, the term "or" used herein is generally intended to mean "and / or". In the case where the term is not clear because it is anticipated that the ability to separate or combine is provided, the combination of components or steps will also be regarded as indicated.

[0066] As used in the description herein and throughout the claims that follow, "a", "an", and "the" include plural references unless otherwise indicated. Likewise, as used in the description herein and throughout the claims that follow, the meaning of "in" includes "in" and "on" unless otherwise indicated.

[0067] The above description of the illustrated embodiments of the present invention (including the contents described in the Abstract) is not intended to be an exhaustive list or to limit the present invention to the precise form disclosed herein. Although specific embodiments of the present invention and examples of the present invention are described herein for illustrative purposes only, various equivalent modifications are possible within the spirit and scope of the present invention as will be recognized and appreciated by those skilled in the art. As noted, these modifications may be made to the present invention in accordance with the above description of the embodiments described in the present invention, and these modifications will be within the spirit and scope of the present invention.

[0068] Systems and methods have been generally described herein as details that aid in understanding the present invention. In addition, various specific details have been given to provide an overall understanding of embodiments of the present invention. However, those skilled in the relevant art will recognize that embodiments of the present invention may be practiced without one or more of the specific details, or may be practiced using other devices, systems, accessories, methods, components, materials, parts, etc. In other cases, well-known structures, materials, and / or operations are not specifically shown or described in detail to avoid confusion with various aspects of embodiments of the present invention.

[0069] Thus, although the invention has been described herein with reference to specific embodiments thereof, freedom of modification, various changes and substitutions are also within the foregoing disclosure, and it should be understood that in some cases, some features of the invention will be employed without the corresponding use of other features without departing from the scope and spirit of the proposed invention. Thus, many modifications may be made to adapt a particular environment or material to the essential scope and spirit of the invention. The invention is not intended to be limited to the specific terms used in the claims below and / or the specific embodiments disclosed as the best mode contemplated for carrying out the invention, but the invention will include any and all embodiments and equivalents falling within the scope of the appended claims. Thus, the scope of the invention will be determined solely by the appended claims.

Claims

1. An auxiliary tool for installing anchor bolts, used for anchor bolts of nuclear power equipment, characterized in that: include: A first half body, wherein a first notch is provided on the first half body, and the first notch is used to accommodate a screw rod of the anchor bolt; A second half body is hinged to the first half body, the first half body is provided with a second notch, the second notch is used to accommodate the screw of the anchor bolt, and the first notch and the second notch together form a locking hole axially fixed to the screw; A lock buckle is used to lock the first half body and the second half body.

2. The anchor bolt installation auxiliary tool according to claim 1, characterized in that: At least one end surface of the anchor bolt installation auxiliary tooling in the direction of the center of the locking hole is a plane, and the plane is perpendicular to the center of the locking hole.

3. The anchor bolt installation auxiliary tool according to claim 1, characterized in that: The locking hole is a threaded hole.

4. The anchor bolt installation auxiliary tool according to claim 3, characterized in that: The first half body and the second half body form a complete hexagonal nut structure.

5. The anchor bolt installation auxiliary tool according to claim 4, characterized in that: The lock buckle is arranged at the free end of the first half body and / or the second half body.

6. The anchor bolt installation auxiliary tool according to claim 5, characterized in that: The free ends of the first half body and the second half body are located on the same straight side of the hexagonal nut structure.

7. The anchor bolt installation auxiliary tool according to claim 1, characterized in that: The first notch and the second notch are both semicircular notches.

8. The anchor bolt installation auxiliary tool according to claim 7, characterized in that: The first half body and the second half body have the same shape.

9. The anchor bolt installation auxiliary tool according to claim 1, characterized in that: The lock buckle is a hasp or a latch.

10. A method for installing an anchor bolt, characterized in that: The invention is applied to a nuclear power equipment installed on a mounting platform, the nuclear power equipment comprises a base, and the mounting platform is provided with a casting cavity for accommodating anchor bolts, comprising the following steps: Passing the foundation bolts through the base of the nuclear power equipment and placing them in the casting cavity; Installing the auxiliary fixture for installing the anchor bolt as described in any one of claims 1 to 9 on the screw rod and making the auxiliary fixture for installing the anchor bolt fit the lower side of the base; Grouting is performed on the casting cavity and a height space is reserved for the auxiliary tooling for installing the anchor bolts; Unlock the lock and remove the auxiliary fixture for installing the anchor bolts; The pouring cavity is grout-casted until it is filled to complete the installation.

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