Heavy bolt threading stability and precision control device

Abstract

The utility model discloses a heavy bolt wear stability and precision control device, including guide support, guide mechanism, buffer protection pad and support ring, the guide mechanism sets up on the outer wall of guide support, the guide mechanism is provided with multiple groups, and each group guide mechanism is by a plurality of guide wheels, and a plurality of guide wheels are along guide support axial setting, the buffer protection pad sets up on the inner wall of guide support, and heavy bolt thread segment installs in guide support, and heavy bolt screw rod segment installs in support ring. Guide support and buffer protection pad effectively protected bolt and sleeve, avoided the direct contact of thread and sleeve inner wall, can effectively prevent thread and sleeve damage.

Description

Technical Field

[0001] This utility model relates to the field of mechanical assembly auxiliary tools for nuclear power equipment installation engineering, and in particular to a protective device for precision threading, which provides effective assistance in the construction process of inserting heavy bolts. Background Technology

[0002] In nuclear power equipment installation engineering structures, the connection quality of heavy bolts directly affects the safety and stability of the overall structure. Traditional heavy bolt installation methods suffer from the following problems: 1. The threaded surface is easily damaged, affecting the connection strength and sealing performance. In addition, once the thread is damaged, the bolt needs to be replaced, increasing costs. 2. Manual operation makes it difficult to guarantee precise alignment, affecting installation accuracy and efficiency; 3. May cause scratches on the inner wall of the sleeve.

[0003] Therefore, there is an urgent need for a special device that can improve the stability and accuracy of heavy bolt installation. Utility Model Content

[0004] This invention aims to solve the problems of thread damage, alignment difficulties, and low efficiency during the installation of heavy bolts in existing technologies. To address these issues, this invention provides a device for controlling the stability and precision of heavy bolt installation. This device has a simple structure, is easy to use, and can significantly improve the assembly quality and efficiency of heavy bolts, making it suitable for various precision threaded connection applications.

[0005] To achieve the above objectives, this utility model employs the following technical solution: A device for controlling the stability and accuracy of heavy bolt installation includes a guide bracket, a guide mechanism, a buffer protective pad, and a support ring. The guide mechanism is disposed on the outer wall of the guide bracket, and multiple sets of guide mechanisms are provided. Each set of guide mechanisms consists of multiple guide wheels, which are arranged along the axial direction of the guide bracket. The buffer protective pad is disposed on the inner wall of the guide bracket. The threaded section of the heavy bolt is installed inside the guide bracket, and the bolt rod section of the heavy bolt is installed in the support ring.

[0006] Furthermore, a rope-tying component is provided on the end face of the guide bracket.

[0007] Furthermore, a rope-tying component is provided on the end face of the support ring.

[0008] Furthermore, it also includes a pull cord, which is wound around the binding element.

[0009] Furthermore, the buffer pad has anti-slip patterns, which are arranged along the axial direction of the buffer pad.

[0010] Furthermore, the inner diameter of the support ring is larger than the outer diameter of the heavy bolt, and the outer diameter of the support ring is smaller than the inner diameter of the sleeve.

[0011] Furthermore, the guide wheel is fixed to the guide bracket by self-tapping screws.

[0012] Furthermore, the guide bracket has a semi-circular structure.

[0013] Compared with the prior art, the beneficial effects of this utility model are: The guide bracket and buffer pad effectively protect the bolts and sleeves, preventing direct contact between the threads and the inner wall of the sleeve, and effectively preventing damage to the threads and sleeves.

[0014] The multi-wheel guide wheel structure ensures automatic alignment during bolt insertion, improving assembly accuracy and efficiency.

[0015] It has a simple structure, is easy to adjust, and has low production costs.

[0016] The features and advantages of this utility model will be described in detail through embodiments in conjunction with the accompanying drawings. Attached Figure Description

[0017] Figure 1 This utility model is a three-dimensional guide bracket. Figure 1 ; Figure 2 This utility model is a three-dimensional guide bracket. Figure 2 ; Figure 3 This is a perspective view of the support ring of this utility model; Figure 4 This is the working state of this utility model. Figure 1 ; Figure 5 This is the working state of this utility model. Figure 2 .

[0018] Figure label: 1. Guide bracket; 2. Guide wheel; 3. Buffer pad; 4. Support ring; 5. Heavy bolt; 6. Tie rope; 7. Pull rope; 8. Sleeve. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0020] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses consistent with some aspects of this application as detailed in the appended claims.

[0021] The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. Unless otherwise defined, the technical or scientific terms used in this application should be understood in their ordinary sense by one of ordinary skill in the art to which this utility model pertains. The words “a” or “one” and similar terms used in this application specification and claims do not indicate a limitation of quantity, but rather indicate the presence of at least one. “A plurality” includes two, equivalent to at least two. The words “comprising” or “including” and similar terms mean that the element or object preceding “comprising” or “including” covers the element or object listed following “comprising” or “including” and its equivalents, and does not exclude other elements or objects. The words “connected” or “linked” and similar terms are not limited to physical or mechanical connections and can include electrical connections, whether direct or indirect. The singular forms “a,” “the,” and “the” used in this application specification and appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0022] This utility model relates to a device for controlling the stability and precision of heavy bolt installation, mainly used to solve the problem of damage to the threads or sleeve 8 caused by the collision between the heavy bolt 5 and the sleeve wall during the insertion of the bolt into the sleeve 8. Through precise guidance and buffer protection, the device ensures smooth bolt installation, solving problems such as easy damage to the threads and sleeve 8 and difficulty in alignment in traditional assembly methods.

[0023] Please refer to the following for details. Figure 1 and 2A device for controlling the stability and precision of heavy bolt installation includes a guide bracket 1, a guide mechanism, and a buffer protective pad 3. The guide mechanism is set on the outer wall of the guide bracket 1, and there are two sets of guide mechanisms. Each set of guide mechanisms consists of three guide wheels 2. The multiple guide wheels 2 are arranged along the axial direction of the guide bracket 1, and the distance between two adjacent guide wheels 2 is equal. The buffer protective pad 3 is set on the inner wall of the guide bracket 1. The threaded section of the heavy bolt 5 is installed in the guide bracket 1. By placing the threaded section of the heavy bolt 5 in the guide bracket 1 and protecting it with the buffer protective pad 3, the thread of the heavy bolt 5 will not directly contact the inner wall of the sleeve 8 during the process of entering the sleeve 8, thereby protecting the thread of the heavy bolt 5 and the sleeve 8. The multi-wheel guide structure ensures that the heavy bolt 5 can be automatically aligned during the installation process, improving the installation accuracy and efficiency.

[0024] It is worth mentioning that the anti-slip texture on the buffer pad 3 is set along the axial direction of the buffer pad 3. In this way, when the threaded section of the heavy bolt 5 comes into contact with the buffer pad 3, the friction between the threaded section of the heavy bolt 5 and the buffer pad 3 is increased. Due to the influence of the anti-slip texture, it will not easily move along the axial direction of the buffer pad 3, so that the heavy bolt 5 and the guide bracket 1 can enter the sleeve 8.

[0025] It is worth mentioning that the guide wheel 2 is fixed to the guide bracket 1 by self-tapping screws. The guide wheel 2 is fixed by self-tapping screws, and the guide wheel 2 can be finely adjusted in the axial and radial positions of the guide bracket 1 by screws to suit sleeves 8 of different diameters.

[0026] In this embodiment, the centers of the two sets of guiding mechanisms are 120° apart.

[0027] Please refer to the following for details. Figure 1 A heavy bolt installation stability and precision control device also includes a pull rope 7. A rope binding member 6 is provided on the end face of the guide bracket 1. The pull rope 7 is wrapped around the rope binding member 6. The design of the pull rope 7 makes it easy for the user to pull the guide bracket 1 out of the sleeve 8.

[0028] In this embodiment, the guide bracket 1 is cut from a nylon tube and has a semi-circular cross-section. Specifically, the nylon tube is cut into a semi-circular shape according to the length of the thread of the heavy bolt 5, which is 1.5 to 2.5 times the length of the thread.

[0029] In this embodiment, the guide wheel 2 is a nylon wheel.

[0030] In this embodiment, the buffer pad 3 is composed of a rubber pad and is fixed to the guide bracket 1 by an adhesive.

[0031] Please refer to the following for details. Figure 3A device for controlling the stability and precision of heavy bolt installation includes a support ring 4. The screw section of the heavy bolt 5 is installed in the support ring 4 to provide support for the heavy bolt 5. The inner diameter of the support ring 4 is larger than the outer diameter of the heavy bolt 5, and the outer diameter of the support ring 4 is smaller than the inner diameter of the sleeve 8. After the device is removed, it is installed to ensure that the heavy bolt 5 is aligned without affecting the free rotation of the heavy bolt 5.

[0032] Please refer to the following for details. Figure 3 A rope tie 6 is provided on the end face of the support ring 4, and a pull rope 7 is wrapped around the rope tie 6. The design of the pull rope 7 makes it easy for the user to pull the support ring 4 out of the sleeve 8.

[0033] In this embodiment, the support ring 4 is a ring made of nylon.

[0034] It is worth mentioning that the guide bracket 1, guide wheel 2 and support ring 4 are made of nylon material, which reduces production costs and is wear-resistant without damaging the surface of the workpiece.

[0035] In this embodiment, the rope-tying component 6 is a screw, which is fastened to the guide bracket 1 and the support ring 4. However, a certain gap needs to be left between the nut and the guide bracket 1 and the support ring 4 to facilitate the winding and binding of the rope 7.

[0036] It should be noted that the lengths of the guide bracket 1 and the buffer protection pad 3 can be adjusted according to the length of the threaded section of the heavy bolt 5, and the number of guide wheels 2 can be increased or decreased according to actual needs.

[0037] This utility model is a device for controlling the stability and precision of heavy bolt installation. Its usage method is described in conjunction with the attached instruction manual. Figure 4 and 5 illustrate: S1. First, attach the threaded section of the heavy bolt 5 to the inner surface of the guide bracket 1. S2. Align the assembled guide bracket 1 and heavy bolt 5 with the inlet of sleeve 8; S3. Slowly advance the guide bracket 1 and heavy bolt 5, and guide wheel 2 automatically guides the centering; S4. After the threaded head of the heavy bolt 5 is screwed into the bolt hole of the sleeve 8 to a certain depth, the guide bracket 1 is taken out by pulling the rope 7. S5. Manually straighten the heavy bolt 5, install the support ring, and support the heavy bolt 5. S6. After the threaded section of the heavy bolt 5 is fully tightened, the support ring is removed by pulling the rope 7.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A device for controlling the stability and precision of heavy bolt installation, characterized in that, The device includes a guide bracket, a guide mechanism, a buffer protective pad, and a support ring. The guide mechanism is located on the outer wall of the guide bracket and there are multiple sets of guide mechanisms. Each set of guide mechanisms consists of multiple guide wheels, which are arranged along the axial direction of the guide bracket. The buffer protective pad is located on the inner wall of the guide bracket. The threaded section of the heavy-duty bolt is installed inside the guide bracket, and the bolt rod section of the heavy-duty bolt is installed in the support ring.

2. The heavy bolt installation stability and precision control device according to claim 1, characterized in that, The guide bracket is provided with a rope binding device on its end face.

3. The heavy bolt installation stability and precision control device according to claim 1, characterized in that, A rope-tying component is provided on the end face of the support ring.

4. The heavy bolt installation stability and precision control device according to claim 2 or 3, characterized in that, It also includes a pull cord, which is wound around the binding member.

5. The heavy bolt installation stability and precision control device according to claim 4, characterized in that, The buffer pad has anti-slip textures, which are arranged along the axial direction of the buffer pad.

6. The heavy bolt installation stability and precision control device according to claim 4, characterized in that, The inner diameter of the support ring is larger than the outer diameter of the heavy bolt, and the outer diameter of the support ring is smaller than the inner diameter of the sleeve.

7. The heavy bolt installation stability and precision control device according to claim 4, characterized in that, The guide wheel is fixed to the guide bracket by self-tapping screws.

8. The heavy bolt installation stability and precision control device according to claim 4, characterized in that, The guide bracket has a semi-circular structure.

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