Large nut upside-down mounting device

Abstract

A large nut inversion device comprises a device screw rod, a nut tray, a spring, a spring tray and a hexagon nut, the device screw rod is used for being matched with a large nut to be installed, the nut tray is located above the device screw rod and used for bearing the large nut, and the spring is located between the nut tray and the spring tray. Through the elastic effect of the spring, when the nut tray makes contact with the threaded section of the nut screw, threads can be automatically aligned, centered and leveled, so that a large nut can be quickly and efficiently screwed into the nut screw, the spring tray is used for fixing the spring and limiting the displacement of the spring, and the hexagonal nut is used for locking the spring tray and the device screw. Therefore, a complete inversion device is formed. The device adopts a split type design, is convenient to carry and adapts to different scenes; meanwhile, the device is provided with a safety locking mechanism to prevent the nut from overturning or falling off; the upside-down mounting device is simple in structure, the mounting efficiency is remarkably improved, the labor intensity is reduced, the operation safety is enhanced, and the upside-down mounting device has wide application prospects.

Description

Technical Field

[0001] The utility model relates to the technical field of large-scale equipment installation in hydropower stations, and particularly to a large-scale nut inversion device. Background Art

[0002] The coupling bolts between the runner and turbine shaft, and between the turbine shaft and generator shaft of large hydro-generator units are usually M150 or above, and the nuts are often installed in an inverted manner. The traditional inverted nut installation process requires the cooperation of three or more operators, which is not only time-consuming and labor-intensive, but also increases labor costs and reduces operating efficiency. In addition, this installation method also has a greater safety risk, and improper operation may cause personal injury and equipment damage.

[0003] Therefore, in view of the deficiencies in the prior art, the present invention designs a large-scale nut inversion device, aiming to improve installation efficiency, reduce labor intensity, and ensure the safety of the operation process. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide a large nut inverted installation device to solve the problems that in the existing large inverted nut installation process, three or more operators are required to cooperate, repeated alignment and first thread installation are difficult, time-consuming and labor-intensive, the operation efficiency is low, and the safety risk is high.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a large nut inversion device, including a device screw, a nut tray, a spring, a spring tray and a hexagonal nut, wherein the device screw is used to cooperate with the large nut to be installed, the nut tray is located above the device screw, and is used to carry the large nut, the spring is located between the nut tray and the spring tray, and through the elastic action of the spring, the nut tray can automatically align and center the thread when contacting the threaded section of the nut screw, so that the large nut can be quickly and efficiently screwed into the nut screw, the spring tray is used to fix the spring and limit its displacement, and the hexagonal nut is used to lock the spring tray and the device screw, thereby forming a complete inversion device.

[0006] In a preferred solution, a lifting screw hole is provided at the lower end of the nut screw, and the device screw is screwed into the lifting screw hole, so that the nut screw and the device screw are screwed and fixed together, and the two are concentric after being assembled as one.

[0007] In a preferred solution, a large nut, a nut tray, a spring, a spring tray and a hexagonal nut are sequentially mounted on the screw rod of the device from top to bottom.

[0008] In a preferred embodiment, the device screw and the hexagonal nut are connected together by threaded engagement.

[0009] In a preferred solution, one end of the spring is connected to the nut tray, and the other end is connected to the spring tray.

[0010] In a preferred solution, a guide structure is provided between the nut tray and the device screw rod to ensure that the nut tray can move smoothly along the device screw rod during the lifting process to avoid deviation or shaking.

[0011] In a preferred solution, the nut tray is made of wood or plastic.

[0012] In a preferred solution, the device adopts a split design, so that the device has a smaller volume after disassembly, which is convenient for transportation and storage to meet the installation requirements of different scenarios.

[0013] The utility model provides a large nut inverting device, which has the following beneficial effects:

[0014] 1. The utility model solves the problem that the installation process of existing large inverted nuts requires the cooperation of three or more operators, and it is difficult to repeatedly find the alignment and install the first thread, which is time-consuming and labor-intensive, has low operating efficiency and high safety risks;

[0015] 2. The utility model realizes the rapid installation of large inverted nuts, improves the installation efficiency, reduces the labor intensity, and ensures the safety of the operation process;

[0016] 3. The utility model uses the setting of the elastic support of the spring to enable the nut to be quickly centered and aligned when it initially contacts the screw, thereby simplifying the installation process and improving the working efficiency;

[0017] 4. The design of the new guide structure not only improves the overall structural stability of the device, but also ensures the lifting accuracy of the nut tray, thereby ensuring the assembly accuracy and use effect of the entire equipment; in addition, the design of the guide structure is also convenient for subsequent maintenance and maintenance work;

[0018] 5. The overall structural design of the utility model enables a single person to complete the installation of the nut, reducing the number and skill requirements of operators and alleviating labor intensity;

[0019] 6. The structural design of the nut tray and spring support of the utility model effectively prevents the nut from tipping over or falling during the installation process, thus ensuring the safety of the operators;

[0020] 7. The utility model adopts a split design, which makes the device smaller in size after disassembly, easy to carry and store, so as to meet the installation requirements of different scenes. At the same time, it can meet the use requirements in large spaces and can also adapt to the installation conditions in small spaces, thus improving the flexibility and applicability of the device and bringing more choices and convenience to users;

[0021] 8. The inverted device of this new design has a simple structure, significantly improves installation efficiency, reduces labor intensity, and enhances operation safety, and has broad application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The utility model is further described below in conjunction with the accompanying drawings and implementation examples:

[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0024] In the figure: nut screw 1, device screw 2, large nut 3, nut tray 4, spring 5, spring tray 6, hexagonal nut 7. DETAILED DESCRIPTION

[0025] like Figure 1 As shown, a large nut inversion device includes a device screw 2, a nut tray 4, a spring 5, a spring tray 6 and a hexagonal nut 7, wherein the device screw 2 is used to cooperate with the large nut 3 to be installed, the nut tray 4 is located above the device screw 2, and is used to carry the large nut 3, the spring 5 is located between the nut tray 4 and the spring tray 6, and through the elastic action of the spring 5, the nut tray 4 can automatically align and center the thread when contacting the threaded section of the nut screw 1, so that the large nut 3 can be quickly and efficiently screwed into the nut screw 1, the spring tray 6 is used to fix the spring 5 and limit its displacement, and the hexagonal nut 7 is used to lock the spring tray 6 and the device screw 2, thereby forming a complete inversion device.

[0026] In this embodiment, a lifting screw hole is provided at the lower end of the nut screw 1, and the device screw 2 is screwed into the lifting screw hole, so that the nut screw 1 and the device screw 2 are screwed and fixed together, and the two are concentric after being assembled as one.

[0027] Furthermore, a large nut 3, a nut tray 4, a spring 5, a spring tray 6 and a hexagonal nut 7 are sequentially mounted on the screw rod 2 of the device from top to bottom.

[0028] Furthermore, the device screw 2 and the hexagonal nut 7 are screwed together through threads.

[0029] Furthermore, one end of the spring 5 is connected to the nut tray 4 , and the other end is connected to the spring tray 6 .

[0030] Furthermore, a guide structure is provided between the nut tray 4 and the device screw 2 to ensure that the nut tray 4 can move smoothly along the device screw 2 during the lifting process to avoid deviation or shaking.

[0031] Furthermore, the nut tray 4 is made of wood, plastic or aluminum alloy.

[0032] Furthermore, the device adopts a split design, so that the device has a smaller volume after disassembly, which is convenient for transportation and storage to meet the installation requirements of different scenarios.

[0033] After all parts are manufactured and accepted, the nut tray 4, spring 5, spring tray 6 and hexagonal nut 7 are sequentially mounted on the device screw 2 from top to bottom, and the spring tray 6 is locked on the device screw 2 by the hexagonal nut 7 to form an inverted structure; when in use, the large nut 3 to be installed is first placed on the nut tray 4, and then the device as a whole is aligned with the lower end of the nut screw 1, and the device screw 2 is screwed into the lifting screw hole of the nut screw 1 to a certain depth, so that the large nut 3 is in contact with the threaded section of the nut screw 1, and under the elastic action of the spring 5, the nut tray 4 drives the large nut 3 to automatically center and level, so that the thread of the large nut 3 is quickly aligned with the thread of the nut screw 1, at this time, the operator can easily rotate the hexagonal nut 7 to make the large nut 3 quickly engage with the device screw 2, and then use the tool to rotate the large nut 3 to complete the installation process; during the whole process, the device screw 2 and the nut tray 4 can support the large nut 3 to prevent the large nut 3 from falling, thereby ensuring the safety of the operation.

[0034] The large nut inverted installation device of the present invention can significantly improve the installation efficiency of large inverted nuts, avoid the difficulty of repeated alignment and first thread installation of the large nut 3 and the nut screw 1, reduce the labor intensity of operators, and ensure the safety of the operation process, and has broad application prospects.

[0035] In the preferred scheme, a lifting screw hole is provided at the lower end of the nut screw 1, and the installation screw 2 is screwed into the lifting screw hole, so that the nut screw 1 and the installation screw 2 are screwed and fixed together, and the two are concentric after being assembled as one; the above setting can make the large nut 3 and the nut screw 1 automatically centered and aligned during the installation process, thereby improving the stability and work efficiency during the installation process.

[0036] In the preferred solution, a large nut 3, a nut tray 4, a spring 5, a spring tray 6 and a hexagonal nut 7 are sequentially mounted on the screw rod 2 of the device from top to bottom; the above arrangement enables the hexagonal nut 7 to drive the large nut 3, the nut tray 4, the spring 5, the spring tray 6 and the hexagonal nut 7 to move up and down synchronously when the device is in use, and at the same time the spring 5 can play a good buffering role, making the device more stable to use.

[0037] In the preferred embodiment, the device screw 2 and the hexagonal nut 7 are connected together by threaded engagement; the above arrangement can facilitate the installation and disassembly of the device by means of threaded engagement, thereby improving the flexibility and maintainability of the device; at the same time, the threaded engagement connection can also ensure the stability and reliability of the connection, thereby making the device safer and more reliable during use.

[0038] In the preferred solution, one end of the spring 5 is connected to the nut tray 4, and the other end is connected to the spring tray 6; with the above arrangement, the spring 5 can play a buffering role between the nut tray 4 and the spring tray 6 to prevent the nut tray 4 from damaging the bolt during the bolt tightening process. At the same time, the arrangement of the spring 5 also makes the bolt tightening process more stable, thereby improving work efficiency.

[0039] In the preferred scheme, a guide structure is arranged between the nut tray 4 and the device screw 2 to ensure that the nut tray 4 can move smoothly along the device screw 2 during the lifting process to avoid deviation or shaking; the above arrangement not only improves the overall structural stability of the device, but also ensures the lifting accuracy of the nut tray 4, thereby ensuring the assembly accuracy and use effect of the entire equipment; in addition, the design of the guide structure also facilitates subsequent maintenance and servicing work.

[0040] In the preferred scheme, the nut tray 4 is made of wood, plastic or aluminum alloy; the above setting makes the overall weight of the nut tray 4 lighter, which is convenient for workers to carry and install and reduces the construction difficulty; and the cost of wood or plastic is relatively low, which can reduce construction costs and improve economic benefits, while aluminum alloy is stronger and more wear-resistant; in addition, wood, plastic or aluminum alloy has good corrosion resistance and can effectively extend the service life of the nut tray 4.

[0041] In the preferred solution, the device adopts a split design, so that the device is smaller in size after disassembly, which is convenient for carrying and storage to meet the installation requirements of different scenarios; the above settings enable the device to meet the usage requirements in large spaces and adapt to the installation conditions in small spaces, thereby improving the flexibility and applicability of the device and bringing more choices and convenience to users.

[0042] In summary, the utility model provides a large-scale nut inversion device, which solves the problem that the installation process of existing large-scale inversion nuts requires the cooperation of three or more operators, and the repeated alignment and first thread installation are difficult, which is time-consuming and labor-intensive, has low work efficiency and high safety risks; it realizes the rapid installation of large-scale inversion nuts, improves the installation efficiency, reduces the labor intensity, and ensures the safety of the operation process; through the setting of the elastic support of the spring, the nut can be quickly centered and aligned when it initially contacts the screw, thereby simplifying the installation process, improving the work efficiency, and the installation of the nut can be completed by one person, reducing the number and skill requirements of operators, and reducing labor intensity; the design of the guide structure not only improves the overall structural stability of the device, but also ensures the lifting accuracy of the nut tray, thereby ensuring the assembly accuracy and use effect of the entire equipment; in addition, the guide structure The design of the structure is also convenient for subsequent maintenance and servicing; the structural design of the nut tray and spring support effectively prevents the nuts from tipping over or falling during the installation process, thereby ensuring the safety of the operators; the utility model adopts a split design, which makes the device smaller in size after disassembly, and is convenient for carrying and storage, so as to adapt to the installation requirements of different scenarios, and at the same time can meet the use requirements in large spaces, and can also adapt to the installation conditions in small spaces, thereby improving the flexibility and applicability of the device and bringing more choices and convenience to users; the new type improves the flexibility, stability and reliability of the device through innovative designs such as split design, guide structure and spring buffer; in actual applications, the device can effectively solve the problems encountered in the installation process of large nuts, improve installation efficiency and quality, has a simple structure, reduces labor intensity, and enhances operation safety, and has broad application prospects.

Claims

1. A large nut inversion device, characterized in that: The invention comprises a device screw (2), a nut tray (4), a spring (5), a spring tray (6) and a hexagonal nut (7), wherein the device screw (2) is used to cooperate with a large nut (3) to be installed, the nut tray (4) is located above the device screw (2) and is used to carry the large nut (3), the spring (5) is located between the nut tray (4) and the spring tray (6), and through the elastic action of the spring (5), the nut tray (4) can automatically align the threads and center and level them when contacting the threaded section of the nut screw (1), so that the large nut (3) can be screwed into the nut screw (1) quickly and efficiently, the spring tray (6) is used to fix the spring (5) and limit its displacement, and the hexagonal nut (7) is used to lock the spring tray (6) and the device screw (2), thereby forming a complete inverted device.

2. The large nut inversion device according to claim 1 is characterized in that: The lower end of the nut screw (1) is provided with a lifting screw hole, and the installation screw (2) is screwed into the lifting screw hole. The nut screw (1) and the installation screw (2) are screwed together and fixed together, and the two are concentric after being assembled into one.

3. The large nut inversion device according to claim 2 is characterized in that: The device screw rod (2) is provided with a large nut (3), a nut tray (4), a spring (5), a spring tray (6) and a hexagonal nut (7) in sequence from top to bottom.

4. The large nut inversion device according to claim 3 is characterized in that: The device screw rod (2) and the hexagonal nut (7) are screwed together through threads.

5. The large nut inversion device according to claim 3 is characterized in that: One end of the spring (5) is connected to the nut tray (4), and the other end is connected to the spring tray (6).

6. The large nut inversion device according to claim 5, characterized in that: A guide structure is provided between the nut tray (4) and the device screw rod (2) to ensure that the nut tray (4) can move smoothly along the device screw rod (2) during the lifting process to avoid deviation or shaking.

7. The large nut inversion device according to claim 6, characterized in that: The nut tray (4) is made of wood, plastic or aluminum alloy.

8. The large nut inversion device according to any one of claims 1 to 7, characterized in that: The device adopts a split design, so that the device has a smaller volume after disassembly, which is convenient for transportation and storage to meet the installation requirements of different scenarios.

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