CN214643249U

CN214643249U - Device for removing rusted screw cap in hydroelectric engineering

Info

Publication number: CN214643249U
Application number: CN202120479932.4U
Authority: CN
Inventors: 邵博
Original assignee: China Three Gorges Corp
Current assignee: China Three Gorges Corp
Priority date: 2021-03-05
Filing date: 2021-03-05
Publication date: 2021-11-09
Anticipated expiration: 2031-03-05

Abstract

A device for removing a rusted nut in hydroelectric engineering comprises a limiting groove (1), wherein the limiting groove (1) is connected with a fixing frame (2), an ejector rod (3) is arranged on the inner wall of the fixing frame (2) in a sliding manner, the ejector rod (3) is driven to move by a threaded rod (4), and the threaded rod (4) is in threaded fit with a locking nut (5); the middle part of the fixed frame (2) is provided with a sliding conical rod (6), and the top end of the conical rod (6) is provided with a tamping head (7). The utility model fixes the rusted nut by matching the two ejector rods with the limiting groove, thereby increasing the fixing effect; convenient to detach, and then change the slide pipe behind the slide pipe of taper rod wearing and tearing, avoid the not hard up location deviation that leads to of taper rod to appear, increase the precision.

Description

Device for removing rusted screw cap in hydroelectric engineering

Technical Field

The utility model belongs to the equipment field is demolishd to the corrosion bolt, in particular to device is demolishd to corrosion nut among water and electricity engineering.

Background

The nut (nut) is a part which is screwed together with a bolt or a screw to play a role in fastening, and is widely applied. In hydroelectric engineering, it is often the case that nuts are rusted, which are difficult to handle. The existing processing mode generally has destructive effect on a screw or a device connected by a nut screw, and is an existing method. For example, the direct removal of the nut by means of an oxyacetylene flame entails the removal of a section of the screw connected to the nut, which, if improperly handled, can cause damage to the peripheral devices. In the prior art, patent No. CN207044092U discloses a rusted nut dismounting device in hydroelectric engineering, which can cut a nut by using a cutting device, but lacks a fixing device, cannot fix the nut during cutting, and is easy to cause incomplete cutting.

Among the prior art, patent of patent grant publication No. CN207953660U discloses a technical scheme, including corrosion nut, corrosion bolt and fixed cover, fixed sheathe in and installs the ejector pin, and ejector pin and fixed cover sliding connection, the part fixedly connected with word awl of ejector pin in being located fixed cover, the first briquetting of one end fixedly connected with of a word awl is kept away from to the ejector pin, fixed sheathe in and installs the nut, threaded connection has the bolt on the nut, the bolt is located the inside one end of fixed cover and rotates and be connected with the piece of supporting, sliding connection has the pull rod on the one end inner wall that the bolt was kept away from to fixed cover, the part fixedly connected with of pull rod in being located fixed cover rakes the hand, the one end fixedly connected with second briquetting of raking the hand is kept away from to the pull rod. The utility model discloses stable in structure, easy operation, design scientific and reasonable is convenient for fix the nut of corrosion, cuts after being convenient for fix, takes off the nut after being convenient for cut, can save a large amount of time of water and electricity engineering personnel and energy.

Above-mentioned technical scheme has solved the problem that proposes in the above-mentioned background art to a certain extent, but in the in-service use, because the nut hardness is great, above-mentioned technical scheme has increased the function of taking off the nut, but the great nut of hardness is difficult to be taken off by above-mentioned structure, and then above-mentioned technical scheme can only play the fixed action to a certain extent, but, above-mentioned technical scheme adopts shaft-like structure to realize fixedly, and the structure is complicated, and fixed poor stability, and then needs a corrosion nut demolishs device in the water electrical engineering who solves above-mentioned problem.

Disclosure of Invention

In view of the technical problems in the background art, the device for removing the rusted nut in the hydroelectric engineering provided by the utility model fixes the rusted nut through the matching of the two ejector rods and the limiting groove, thereby increasing the fixing effect; convenient to detach, and then change the slide pipe behind the slide pipe of taper rod wearing and tearing, avoid the not hard up location deviation that leads to of taper rod to appear, increase the precision.

In order to solve the technical problem, the utility model discloses following technical scheme has been taken and has been realized:

a device for removing a rusted nut in hydroelectric engineering comprises a limiting groove, wherein the limiting groove is connected with a fixed frame, an ejector rod is arranged on the inner wall of the fixed frame in a sliding manner, the ejector rod is driven to move by a threaded rod, and the threaded rod is in threaded fit with a locking nut; the middle part of the fixing frame is provided with a sliding conical rod, and the top end of the conical rod is provided with a tamping head.

In the preferred scheme, the inner walls of two sides of the fixing frame are provided with push rods which can slide.

In a preferable scheme, the ejector rod is in sliding fit with the guide pipe, and the guide pipe is arranged on the inner wall of the guide pipe.

In the preferred scheme, the taper rod is positioned between the two ejector rods, the outer parts of the ejector rods are sleeved with the sliding pipes, and the sliding pipes are detachably connected with the fixing frame.

In the preferred scheme, the outside of the sliding pipe is provided with external threads, and the sliding pipe is in threaded connection with the fixed frame.

In the preferred scheme, the locking nut is provided with a limiting ring, the fixing frame is provided with a limiting groove, and the limiting groove is matched with the limiting ring.

In the preferred scheme, the limiting groove is a trapezoidal groove, the fixing frame is a U-shaped frame, and the fixing frame and the limiting groove are connected to form a closed frame.

This patent can reach following beneficial effect:

the utility model fixes the rusted nut by matching the two ejector rods with the limiting groove, thereby increasing the fixing effect; the replaceable sliding pipe avoids the problem that the positioning is inaccurate due to the looseness of the conical rod caused by abrasion; the sliding pipe is installed on the fixed frame through the screw thread, and convenient to detach, and then changes the sliding pipe behind the sliding pipe of taper rod wearing and tearing, avoids the not hard up deviation that leads to the location of taper rod, increases accurate nature.

Drawings

The invention will be further explained with reference to the following figures and examples:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of FIG. 1 at A;

fig. 3 is a cross-sectional view of the ejector rod of the present invention.

In the figure: the device comprises a limiting groove 1, a fixing frame 2, a top rod 3, a threaded rod 4, a locking nut 5, a taper rod 6, a tamping head 7, a guide pipe 8, a sliding pipe 9 and a limiting ring 10.

Detailed Description

The preferable scheme is as shown in figures 1 to 3, the device for removing the rusted nut in the hydroelectric engineering comprises a limiting groove 1, wherein the limiting groove 1 is connected with a fixed frame 2, an ejector rod 3 is arranged on the inner wall of the fixed frame 2 in a sliding manner, the ejector rod 3 is driven to move by a threaded rod 4, and the threaded rod 4 is in threaded fit with a locking nut 5; the middle part of the fixed frame 2 is provided with a sliding conical rod 6, and the top end of the conical rod 6 is provided with a tamping head 7.

Furthermore, the inner walls of two sides of the fixed frame 2 are provided with ejector rods 3 which can slide.

Further, ejector pin 3 and 8 sliding fit of stand pipe, stand pipe 8 sets up at 8 inner walls of stand pipe.

Further, the taper rod 6 is located between the two ejector rods 3, the sliding pipe 9 is sleeved outside the ejector rods 3, and the sliding pipe 9 is detachably connected with the fixing frame 2.

Further, the outside of the sliding pipe 9 is provided with external threads, and the sliding pipe 9 is in threaded connection with the fixed frame 2.

Furthermore, a limiting ring 10 is arranged on the locking nut 5, and a limiting groove is arranged on the fixing frame 2 and matched with the limiting ring 10.

Further, the limiting groove 1 is a trapezoidal groove, the fixing frame 2 is a U-shaped frame, and the fixing frame 2 is connected with the limiting groove 1 to form a closed frame.

Taking the visual angle of the attached drawing 1 as an example, the sliding pipe is screwed and inserted on the upper part of the fixed frame through threads, the conical rod is inserted in the sliding pipe in a sliding manner, the tamping head is fixedly arranged at the upper end of the conical rod, the lower part of the locking nut is provided with a limiting ring, two locking nuts are rotatably embedded on the upper surface of the fixed frame through the limiting ring and are arranged at two sides, the threaded rod is inserted on the fixed frame in a sliding manner and is occluded with the locking nuts, the ejector rod is fixedly arranged at the lower end of the threaded rod, and the guide pipe is sleeved on the ejector rod in a sliding manner and is fixedly arranged on the inner side of the fixed frame.

The working principle is as follows:

when the nut removing device works, the fixing frame is firstly sleeved on the rusted nut, then the locking nut is screwed, the locking nut under the limitation of the limiting ring drives the threaded rod on the ejector rod limited by the guide pipe to move downwards, so that the ejector rod is bound on the rusted nut, the two locking nuts are screwed, so that the two ejector rods are driven to limit and fix two sides of the rusted nut, a good fixing effect is achieved by matching with the limiting groove on the fixing frame, the ramming head is rammed, the ramming head drives the conical rod to impact the nut, and the nut is punched out of the groove, so that the nut removing work in the next step is facilitated;

the dismantling method comprises the following steps: after dashing out the groove with the nut, further utilize the ramming head to move the awl pole and strike, and then expand by the groove-shaped structure of dashing out on the nut, the groove-shaped structure after the expansion makes the loop configuration of nut destroyed, at this moment, takes off this device, then utilizes the chisel to strike above-mentioned groove along the nut unscrewing direction, and then lift the nut off, directly utilizes hydraulic pressure expanding mechanism to expand the groove when the corrosion is too serious, further destroys the nut structure for nut and screw rod separation.

The sliding pipe is installed on the fixed frame through the screw thread, and convenient to detach, and then changes the sliding pipe behind the sliding pipe of taper rod wearing and tearing, avoids the not hard up deviation that leads to the location of taper rod, increases accurate nature.

The above-mentioned embodiments are merely preferred embodiments of the present invention, and should not be considered as limitations of the present invention, and the protection scope of the present invention should be defined by the technical solutions described in the claims, and includes equivalent alternatives of technical features in the technical solutions described in the claims. Namely, equivalent alterations and modifications within the scope of the invention are also within the scope of the invention.

Claims

1. The utility model provides a device is demolishd to corrosion nut among water and electricity engineering, includes spacing groove (1), and spacing groove (1) is connected its characterized in that with fixed frame (2): the inner wall of the fixed frame (2) is slidably provided with a mandril (3), the mandril (3) is driven to move by a threaded rod (4), and the threaded rod (4) is in threaded fit with the locking nut (5); the middle part of the fixed frame (2) is provided with a sliding conical rod (6), and the top end of the conical rod (6) is provided with a tamping head (7).

2. The device for removing the rusted nut in the hydroelectric engineering according to claim 1, characterized in that: the inner walls of two sides of the fixed frame (2) are provided with ejector rods (3) which can slide.

3. The device for removing the rusted nut in the hydroelectric engineering of claim 2, wherein: the ejector rod (3) is in sliding fit with the guide pipe (8), and the guide pipe (8) is arranged on the inner wall of the guide pipe (8).

4. The device for removing the rusted nut in the hydroelectric engineering of claim 2, wherein: the taper rod (6) is positioned between the two ejector rods (3), the sliding pipe (9) is sleeved outside the ejector rods (3), and the sliding pipe (9) is detachably connected with the fixed frame (2).

5. A device for removing rusted nuts in hydroelectric engineering according to claim 4, characterized in that: the outside of the sliding pipe (9) is provided with external threads, and the sliding pipe (9) is in threaded connection with the fixed frame (2).

6. The device for removing the rusted nut in the hydroelectric engineering according to claim 1, characterized in that: the locking nut (5) is provided with a limiting ring (10), the fixing frame (2) is provided with a limiting groove, and the limiting groove is matched with the limiting ring (10).

7. The device for removing the rusted nut in the hydroelectric engineering according to claim 1, characterized in that: the limiting groove (1) is a trapezoidal groove, the fixing frame (2) is a U-shaped frame, and the fixing frame (2) is connected with the limiting groove (1) to form a closed frame.