CN111531502A - Adjustable inner flange dismounting device - Google Patents

Abstract

An adjustable inner flange dismantling device, comprising a handle, a fixed ring, a middle positioning plate, a movable block, a bottom positioning plate and a supporting plate are installed on the long axis of the handle at intervals from top to bottom, the fixed ring, the middle positioning plate, the bottom The middle of the positioning plate and the supporting plate are provided with a central circular hole, which is matched with the long axis, and the middle of the movable block is provided with an internal thread, which is matched with the long axis thread. The bottom of the central positioning plate is positioned by the positioning nut, so A plurality of support rods are evenly spaced in the circumferential direction of the middle positioning plate, the head of the support rod and the middle positioning plate are connected by pins, and the tail of the support rod is provided with a hook-shaped structure extending outward, so The outer circumferential surface of the movable block is in contact with the inner side of each support rod; using the principle of screw drive, the height of the movable block is adjusted by rotating the handle, and the opening range of the support rod is adjusted by the movable block, so that the end of the support rod is hooked to the inner side. Flange end face, and then forcefully pull out the inner flange to complete the disassembly of the inner flange.

Description

An adjustable inner flange dismantling device

technical field

The invention relates to the technical field of flange disassembly devices, in particular to an adjustable inner flange disassembly device.

Background technique

In the underwater robot, the pressure chamber provides a closed environment for the electronic equipment of the underwater robot to ensure the stable operation of the electronic equipment. Usually in the design of the pressure chamber, two sealing methods, the end face seal and the radial seal are used. Since the end face seal method will increase the diameter of the pressure chamber to a certain extent, the radial seal will be selected in the case of space constraints. Way. In the radial sealing method, the flange is not easy to disassemble. In the design process, threaded holes are generally reserved for disassembly, but after repeated disassembly, the thread will be damaged, and the purpose of disassembling the flange can no longer be achieved. It is impossible to find a suitable force point after disassembly, which is not conducive to the disassembly of the flange. If the flange cannot be disassembled in time, it will affect the repair and maintenance of the pressure chamber, and then affect the use of the underwater robot.

SUMMARY OF THE INVENTION

Aiming at the shortcomings of the above-mentioned existing production technology, the applicant provides an adjustable inner flange disassembly device, so as to use the principle of screw drive, adjust the height of the movable block by rotating the handle, and use the movable block to adjust the opening range of the support rod , so that the end of the support rod hooks the end face of the inner flange, and then pulls out the inner flange forcibly, the disassembly of the inner flange can be completed, and the disassembly of the flange can be completed in time when the reserved threaded hole fails, which can effectively improve the water quality. The maintenance efficiency of the lower robot.

The technical scheme adopted in the present invention is as follows:

An adjustable inner flange dismantling device, comprising a handle, a fixed ring, a middle positioning plate, a movable block, a bottom positioning plate and a supporting plate are installed on the long axis of the handle at intervals from top to bottom, the fixed ring, the middle positioning plate , The middle of the bottom positioning plate and the supporting plate are provided with a central circular hole, which is matched with the long axis, and the middle of the movable block is provided with an internal thread, which is matched with the long axis thread, and the bottom of the central positioning plate is positioned by positioning Nut positioning, a plurality of support rods are evenly spaced in the circumferential direction of the middle positioning plate, the head of the support rod and the middle positioning plate are connected by pins, and the tail of the support rod is provided with hooks extending outwards shaped structure, the outer circumferential surface of the movable block abuts the inner side of each support rod;

There are holes at both ends of the fixing ring, the middle positioning plate, the movable block and the bottom positioning plate, and the two ends of the supporting plate are provided with countersunk holes. After positioning the plate, use the thread at the top of the guide rod to fix it with the fixing ring.

Its further technical solution is:

The structure of the handle is as follows: including a handle, the handle is in a ring structure, the bottom of the handle extends downward with a long axis, and the long axis is divided into: the first step, the second step, the third step from top to bottom. Step and fourth step; the first step fits with the central hole of the fixing ring, the second step fits with the central hole of the middle positioning plate, and the outer circumferential surface of the third step is provided with an external thread, which is matched with the thread of the movable block , the fourth step is in clearance fit with the bottom positioning plate and the central hole of the support plate, the bottom surface of the fourth step is provided with an inner thread hole, and the support plate is positioned by the positioning screw.

The shaft diameters of the first step, the second step, the third step and the fourth step decrease in order from large to small.

There are three support rods.

The beneficial effects of the present invention are as follows:

The invention has compact and reasonable structure and convenient operation. By connecting the handle and the movable block with threads, using the principle of screw drive, by rotating the handle, the movable block moves up and down along the guide rod, and the height change of the movable block is used to adjust the tension of the support rod. Ensure that the opening range of the support rod is close to the inner diameter of the pressure chamber, and the end of the support rod can be hooked to the end face of the inner flange. The circumferential distribution of the support rods is used to ensure that the inner flange is evenly stressed, and then the inner flange is pulled out forcibly to complete the disassembly of the inner flange.

The invention utilizes the principle of screw drive to adjust the height of the movable block, and then adjusts the opening range of the support rod. By adjusting the opening range of the support rod, it can meet the disassembly requirements of the inner flange of the pressure chamber with different inner diameters, and has the advantages of simple operation and adjustability. Good, high reliability advantages.

Description of drawings

FIG. 1 is a schematic structural diagram of the present invention.

Figure 2 is an exploded view of the present invention.

3 is a front view (full cross-sectional view) of the present invention.

FIG. 4 is a schematic structural diagram of the handle of the present invention.

FIG. 5 is an application diagram of the present invention.

Among them: 1, handle; 2, fixing ring; 3, guide rod; 4, middle positioning plate; 5, positioning nut; 6, support rod; 7, movable block; 8, bottom positioning plate; 9, support plate; 10, Set screw; 11. Inner flange; 12. Pressure chamber;

101, handle; 102, first step; 103, second step; 104, third step; 105, fourth step.

Detailed ways

The specific embodiments of the present invention will be described below with reference to the accompanying drawings.

As shown in Figures 1-4, the adjustable inner flange disassembly device of this embodiment includes a handle 1, and a fixed ring 2, a middle positioning plate 4, and a movable block 7 are installed on the long axis of the handle 1 at intervals from top to bottom. , the bottom positioning plate 8 and the supporting plate 9, the fixing ring 2, the middle positioning plate 4, the bottom positioning plate 8 and the middle of the supporting plate 9 are all provided with a central circular hole, the central circular hole is matched with the long axis, and the middle of the movable block 7 is opened. There are internal threads, which cooperate with the long axis threads. The bottom of the middle positioning plate 4 is positioned by the positioning nut 5. There are three support rods 6 evenly spaced in the circumferential direction of the middle positioning plate 4. The head of the support rod 6 and the middle positioning plate 4 They are connected by pins, and the tail of the support rod 6 is provided with a hook-like structure extending outward, and the outer circumferential surface of the movable block 7 is in contact with the inner side of each support rod 6;

The fixed ring 2, the middle positioning plate 4, the movable block 7, and the bottom positioning plate 8 are provided with holes at both ends, and the two ends of the support plate 9 are provided with countersunk holes. After the plate 8 , the movable block 7 and the middle positioning plate 4 , they are fixed with the fixing ring 2 by the thread at the top of the guide rod 3 .

The structure of the handle 1 is: including a handle 101, the handle 101 is in a ring structure, the bottom of the handle 101 extends downward with a long axis, and the long axis from top to bottom is divided into: a first step 102, a second step 103, a third step Step 104 and fourth step 105; the first step 102 is clearance fit with the central hole of the fixing ring 2, the second step 103 is clearance fit with the central circular hole of the central positioning plate 4, and the outer circumferential surface of the third step 104 is provided with an outer The screw thread is threaded with the movable block 7, and the fourth step 105 is clearance fit with the central circular hole of the bottom positioning plate 8 and the support plate 9. The bottom surface of the fourth step 105 is provided with an internal thread hole, and the positioning screw 10 is used for the support plate 9. to locate.

The shaft diameters of the first step 102 , the second step 103 , the third step 104 and the fourth step 105 decrease in order from large to small.

The concrete structure and function of the present invention are as follows:

It mainly includes a handle 1, a guide rod 3, a fixing ring 2, a middle positioning plate 4, a positioning nut 5, a support rod 6, a movable block 7, a bottom positioning plate 8, a supporting plate 9, a positioning screw 10, etc.

In the device of the present invention, the first step 102 of the handle 1 is in clearance fit with the central hole of the fixing ring 2, the second step 103 is in clearance fit with the central circular hole of the central positioning plate 4, and the outer circumferential surface of the third step 104 is provided with an outer The thread is matched with the inner thread of the movable block 7, and the relative movement is generated with the movable block 7 by rotating the handle 1. The fourth step 105 is in clearance fit with the bottom positioning plate 8 and the support plate 9, and the bottom surface of the fourth step 105 is provided with an inner thread. hole, and use the positioning screw 10 to position the pallet 9 .

The middle positioning plate 4 of the second step 103 of the handle 1 is fixed by the positioning nut 5 .

Three support rods 6 are evenly distributed in the circumferential direction of the middle positioning plate 4 . The positioning between the support rod 6 and the middle positioning plate 4 is achieved by a pin shaft, and the support rod 6 rotates around the pin shaft under the action of the movable block 7 .

The lower end of the support rod 6 is in the shape of a hook, which can be used to hook the inner flange 11 tightly. In addition, the support rod 6 of other sizes can be replaced according to the needs of use to increase its adjustment range.

The middle positioning plate 4 and the bottom positioning plate 8 are symmetrically reserved with two holes relative to the central axis. The guide rod 3 is installed from the bottom and passes through the bottom positioning plate 8 and the middle positioning plate 4 respectively, and is fixed by the upper end thread of the guide rod 3. The ring 2 is fixed; the support plate 9 at the bottom positions and protects the whole composed of the guide rod 3 and the fixing ring 2 .

As shown in FIG. 5 , when the inner flange 11 is disassembled by using the disassembly device of the present invention.

In the actual use process, first hold the fixing ring 2 with one hand to prevent it from rotating, and rotate the handle 1 with the other hand, and adjust the height of the movable block 7 through the principle of screw drive to minimize the opening range of the support rod 6. The device extends into the pressure chamber 12 until the support rod 6 completely exceeds the inner end face of the inner flange 11 . Continue to rotate the handle 1, adjust the height of the movable block 7 so that the opening range of the support rod 6 is close to the inner diameter of the pressure chamber 12, stop rotating the handle 1 at this time, and slowly pull out the device until the support rod 6 touches the inner diameter The end face of the flange 11 . After confirming that the support rod 6 can hook the end face of the inner flange 11, fix the pressure chamber 12, and then pull the handle 1 forcefully until the inner flange 11 is taken out from the pressure chamber 12, and the inner flange 11 can be completed. disassemble. Easy maintenance and high work efficiency.

The above description is an explanation of the present invention, not a limitation of the present invention. For the limited scope of the present invention, refer to the claims, and any form of modification can be made within the protection scope of the present invention.

Claims (4)

1. An adjustable inner flange dismantling device, characterized in that it comprises a handle (1), and a fixing ring (2), a middle positioning plate (4) are installed on the long axis of the handle (1) at intervals from top to bottom. ), the movable block (7), the bottom positioning plate (8) and the supporting plate (9), the middle of the fixing ring (2), the middle positioning plate (4), the bottom positioning plate (8) and the supporting plate (9) are all open There is a central circular hole, the central circular hole is matched with the long shaft, the middle part of the movable block (7) is provided with an internal thread, which is matched with the long shaft thread, and the bottom of the middle positioning plate (4) is positioned by the positioning nut (5). , a plurality of support rods (6) are evenly spaced in the circumferential direction of the middle positioning plate (4), and the head of the support rod (6) and the middle positioning plate (4) are connected by a pin shaft. The tail of the support rod (6) is provided with a hook-like structure extending outward, and the outer circumferential surface of the movable block (7) abuts the inner side of each support rod (6); Both ends of the fixing ring (2), the middle positioning plate (4), the movable block (7), and the bottom positioning plate (8) are provided with holes, the two ends of the support plate (9) are provided with countersunk holes, and the guide rod (3) ) is installed from the countersunk hole, passes through the bottom positioning plate (8), the movable block (7), and the middle positioning plate (4) in sequence, and is fixed by the thread at the top of the guide rod (3) and the fixing ring (2). 2. An adjustable inner flange dismantling device according to claim 1, characterized in that: the handle (1) is structured as follows: comprising a handle (101), the handle (101) is in a ring structure, and the handle (101) is in the form of a ring. The bottom of the handle (101) has a long axis extending downward, and the long axis is divided into: a first step (102), a second step (103), a third step (104) and a fourth step ( 105); the first step (102) is clearance fit with the central circular hole of the fixing ring (2), the second step (103) is clearance fit with the central circular hole of the central positioning plate (4), and the outer The circumferential surface is provided with an external thread, which is threaded with the movable block (7). Internal threaded holes are provided, and the support plate (9) is positioned by the positioning screw (10). 3. An adjustable inner flange dismantling device according to claim 2, characterized in that: the first step (102), the second step (103), the third step (104) and the fourth step ( 105) The diameter of the shaft decreases from large to small. 4. An adjustable inner flange dismantling device according to claim 1, characterized in that: there are three support rods (6).

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