Hydraulic nut screwing tool

Abstract

The hydraulic nut screwing tool is characterized in that the hydraulic nut screwing tool comprises a supporting frame and fixing frame bodies arranged on the two sides of the supporting frame, and rolling bodies are symmetrically arranged on the supporting frame in the length direction of the supporting frame; a groove body attached to the outer edge of the hydraulic nut is formed in the portion, between the rolling bodies, of the supporting frame. The hydraulic nut is supported through the arranged supporting frame, meanwhile, the rolling body arranged on the supporting frame is matched with the fixing frame bodies arranged on the two sides to provide positioning for the hydraulic nut, and the arranged rolling body can also assist in screwing of the hydraulic nut.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of mechanical assembly equipment, and in particular to a hydraulic nut screwing tool. BACKGROUND

[0002] As an advanced pre-tightening tool, hydraulic nuts are widely used in key connection parts, because they can provide huge, accurate and uniform pre-tightening force, far exceeding the capacity of traditional manual or pneumatic tools, thereby ensuring the reliability and long-term stability of large bolt connections. The self-weight of large hydraulic nuts can reach dozens of kilograms or even hundreds of kilograms. How to safely, accurately and efficiently transport the hydraulic nuts to the target bolt position and stabilize them in the initial screwing position on the installation site is a time-consuming and labor-intensive process. At present, structures with lifting rings or hooks are mainly designed for lifting and moving hydraulic nuts, but their functions are limited to transportation. After the nuts reach the vicinity of the installation position, they usually cannot provide fine adjustment and positioning, nor can they assist in the screwing action. After being placed, subsequent operations still need to rely on other tools or manual operation. Some designs have positioning functions, but lack effective integration with the screwing action. SUMMARY

[0003] The technical problem to be solved by the present application is to overcome the defects of the prior art. The present application provides a hydraulic nut screwing tool that provides auxiliary screwing function while meeting the transportation requirements of hydraulic nuts.

[0004] To solve the above technical problems, the technical scheme adopted by the present application is as follows: a hydraulic nut screwing tool, comprising a support frame and a fixed frame body arranged on both sides of the support frame, a rolling body is arranged symmetrically on the length direction of the support frame on the support frame, and a groove body is arranged on the support frame between the rolling bodies and is fitted with the outer edge of the hydraulic nut.

[0005] Further, the rolling body comprises a roller and a roller shaft, the roller is arranged at both ends of the roller shaft and rotates coaxially with the roller shaft.

[0006] Further, the roller is fixedly arranged on the support frame by a support seat, and the roller can rotate in the support seat.

[0007] Further, the support frame is composed of side plates and angle steels, and a plurality of angle steels are fixed vertically between two side plates; the support seat is fixedly arranged above the side plates.

[0008] Further, the side plate comprises a connecting section and a supporting section, the groove body is arranged on the supporting section, and the connecting section is arranged on both sides of the supporting section. The angle steel comprises a first angle steel and a second angle steel, two end portions of the first angle steel are located in the support section, two end portions of the second angle steel are located in the connecting section, and the vertexes of the folds of the first angle steel and the second angle steel are directed to different directions.

[0009] Further, the fixing frame body comprises a guard rod and a hook, the guard rod is fixed on the two ends of the side plate, and the hook is fixedly arranged on the other end of the guard rod.

[0010] Further, the distance between the adjacent guard rods on the side plate is not less than the diameter of the hydraulic nut.

[0011] Further, the hook is fixedly arranged on the guard rod away from one side of the side plate.

[0012] Compared with the prior art, the beneficial effects of the present application include that the support frame is arranged to support the hydraulic nut, and the fixing frame body arranged on the support frame and matched with the rolling body arranged on the two sides is arranged to position the hydraulic nut, and the rolling body can also assist the rotation of the hydraulic nut. BRIEF DESCRIPTION OF DRAWINGS

[0013] The disclosed content of the present application is explained with reference to the drawings. It should be understood that the drawings are only for illustrative purposes, and are not intended to limit the protection scope of the present application. In the drawings, the same reference signs are used to refer to the same components. Among them: Figure 1 The front view structure of the hydraulic nut rotation tool is schematically shown; Figure 2 The bottom view structure of the hydraulic nut rotation tool is schematically shown; Figure 3 The side view structure of the hydraulic nut rotation tool is schematically shown.

[0014] Figure label: 1-side plate, 2-connecting section, 3-support section, 4-groove body, 5-first angle steel, 6-second angle steel, 7-guard rod, 8-hook, 9-roller, 10-roller shaft, 11-support seat. DETAILED DESCRIPTION

[0015] It is easy to understand that, according to the technical scheme of the present application, those skilled in the art can propose a plurality of structure modes and implementation modes which can be replaced with each other without changing the essential spirit of the present application. Therefore, the following specific embodiments and drawings are only exemplary descriptions of the technical scheme of the present application, and should not be regarded as the whole or as the limitation or restriction of the technical scheme of the present application.

[0016] A hydraulic nut rotation tool, such as Figure 1As shown, it comprises a support frame and fixed frame bodies arranged on both sides of the support frame, wherein the fixed frame bodies can be vertically fixed on both sides of the support frame or the fixed frame bodies and the support frame are fixed at a certain angle, such as the included angle between the fixed frame body and the support frame is acute or obtuse. The foregoing support frame provides support for the hydraulic nut that needs to be screwed, and the fixed frame body can meet the requirements of hoisting or corresponding fixing requirements, and after the entire screwing tool is hoisted to the designated position, it remains in the hoisting position or is fixed in the appropriate position by the environmental structure, and then the screwing process of the hydraulic nut is completed manually.

[0017] In the foregoing screwing process of the hydraulic nut, the screwing tool itself only includes support and positioning functions and cannot provide assistance during the screwing process. Even the friction between the hydraulic nut and the support frame can affect the screwing process of the hydraulic nut. Therefore, rolling bodies are arranged on the support frame based on the length direction of the support frame, and grooves 4 that fit the outer edge of the hydraulic nut are formed on the support frame between the rolling bodies. Due to the symmetrical arrangement of the rolling bodies, when the hydraulic nut is arranged on the support frame, the rolling bodies can provide support for the hydraulic nut together with the support frame, and at the same time, the stable movement of the hydraulic nut in the support frame is ensured due to the opposite movement trend of the rolling bodies and the hydraulic nut. When the hydraulic nut is hoisted into place, the presence of the rolling bodies can assist in completing the screwing process of the hydraulic nut, and driving the rolling bodies can drive the hydraulic nut to complete the screwing in a certain direction. The grooves 4 arranged on the support frame can fit the outer edge curve of the hydraulic nut, further ensuring the positioning stability of the outer edge nut in the screwing tool.

[0018] The following will be described in detail Figure 2 The structure of the rolling body will be described in detail. The rolling body comprises a roller 9 and a roller shaft 10, wherein the roller 9 is arranged at both ends of the roller shaft 10 and can rotate coaxially with the roller shaft 10, that is, the roller 9 and the roller shaft 10 are fixedly arranged on the same central shaft. The roller 9 is fixedly arranged on the support frame by a support seat 11 and can rotate in the support seat 11. When either the roller 9 or the roller shaft 10 is driven to rotate, the other one will rotate synchronously. In actual application, after the screwing tool is hoisted to the designated position, the rotating hydraulic nut is driven by the nylon rope, and due to the close fit between the outer edge of the hydraulic nut and the roller 9, the roller 9 will rotate in the opposite direction of the rotation of the hydraulic nut under the action of friction. The rollers 9 on both sides of the roller shaft 10 will rotate synchronously, thereby assisting in completing the screwing process of the hydraulic nut and providing safety protection for the screwing process of the hydraulic nut.

[0019] It is worth noting that the screwing process referred to above is not to completely tighten the hydraulic nut, but only to complete the preliminary screwing process.

[0020] The following will be described in detail Figure 1 andFigure 2 The support frame is composed of side plates 1 and angle steels, that is, a plurality of angle steels are vertically fixed between two side plates 1 to form a square structure support frame. The aforementioned support frame and the groove body 4 are both provided on the top side of the side plate 1, the groove body 4 is arranged between the aforementioned support frames, and the depth of the groove body 4 is determined according to the size of the hydraulic nut.

[0021] The side plate 1 constituting the support frame includes a connecting section 2 and a support section 3, the groove body 4 is arranged on the support section 3, the connecting section 2 is arranged on both sides of the support section 3, and the fixing frame body is fixed at an angle with the connecting section 2; wherein the support section 3 is a symmetrical structure and the side plate 1 is also symmetrical based on the center line of the support section 3. The angle steel includes a first angle steel 5 and a second angle steel 6, the connecting point of the first angle steel 5 with the side plate 1 is located in the support section 3, the connecting point of the second angle steel 6 with the side plate 1 is located in the connecting section 2, and the vertexes of the folding angles of the first angle steel 5 and the second angle steel 6 are directed to different directions; specifically, one side of the first angle steel 5 is directed to the center line position of the side plate 1, and the other side is vertically directed upward; one side of the second angle steel 6 is also directed to the center line position of the side plate 1, and the other side is vertically directed downward; and the first angle steel 5 is arranged below the groove body 4, and the second angle steel 6 is arranged close to the fixing frame body position of the connecting section 2. By specially arranging the directions and positions of the aforementioned first angle steel 5 and the second angle steel 6, the supportability of the support frame to the hydraulic nut can be effectively improved, and the strength of the support frame is effectively improved.

[0022] The following will be described in detail Figure 1 and Figure 3 The fixing frame body is described in detail. The fixing frame body includes a guard rod 7 and a hook 8, the guard rod 7 is fixed on both ends of the side plate 1, and the hook 8 is fixed on the other end of the guard rod 7 away from one side of the side plate 1. The distance between the two guard rods 7 on the side plate 1 is not less than the diameter of the hydraulic nut, and most preferably the distance between the two guard rods 7 is exactly equal to the diameter of the hydraulic nut, so that the guard rod 7 can provide lateral limiting for the hydraulic nut, and cooperate with the roller 9 arranged on the side plate 1 and the groove body 4 to complete the positioning of the hydraulic nut.

[0023] The support frame is arranged to provide support for the hydraulic nut, and the rolling body arranged on the support frame cooperates with the fixing frame body arranged on both sides to provide positioning for the hydraulic nut; the rotation of the hydraulic nut can be completed by the rotation tool, and the rolling body can also assist the rotation of the hydraulic nut.

[0024] The technical scope of the present application is not limited to the above description, and those skilled in the art can make various modifications and changes to the above embodiments without departing from the technical idea of the present application, and these modifications and changes should be within the protection scope of the present application.

Claims

1. A hydraulic nut-up tooling, characterized by, Including support frame and fixed frame body arranged on both sides of the support frame, the rolling body is arranged on the support frame based on the length direction symmetry of the support frame, and the groove (4) is arranged on the support frame between the rolling bodies and matched with the outer edge of the hydraulic nut.

2. The hydraulic nut-up tooling of claim 1, wherein, The rolling body includes a roller (9) and a roller shaft (10), and the roller (9) is arranged at both ends of the roller shaft (10) and rotates coaxially with the roller shaft (10).

3. The hydraulic nut-up tooling of claim 2, wherein, The roller (9) is fixedly arranged on the support frame by a support seat (11), and the roller (9) can rotate in the support seat (11).

4. The hydraulic nut-up tooling of claim 3, wherein, The support frame is composed of a side plate (1) and an angle steel, and several angle steels are vertically fixed between two side plates (1); the support seat (11) is fixedly arranged above the side plate (1).

5. The hydraulic nut screwing tool of claim 4, wherein, The side plate (1) includes a connecting section (2) and a supporting section (3), the groove (4) is arranged on the supporting section (3), and the connecting section (2) is arranged on both sides of the supporting section (3). The angle steel includes a first angle steel (5) and a second angle steel (6), both ends of the first angle steel (5) are located in the supporting section (3), both ends of the second angle steel (6) are located in the connecting section (2), and the vertexes of the first angle steel (5) and the second angle steel (6) are directed to different directions.

6. The hydraulic nut-up tooling of claim 1, wherein, The fixed frame body includes a guard rod (7) and a hook (8), the guard rod (7) is fixed on both ends of the side plate (1), and the hook (8) is fixedly arranged on the other end of the guard rod (7).

7. The hydraulic nut-up tooling of claim 6, wherein, The distance between the adjacent guard rods (7) on the side plate (1) is not less than the diameter of the hydraulic nut.

8. The hydraulic nut-up tooling of claim 6, wherein, The hook (8) is fixedly arranged on the guard rod (7) away from one side of the side plate (1).

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