Special tool for maintaining LNG immersed pump

Abstract

The utility model belongs to the technical field of maintenance of immersed pumps, and particularly relates to a special tool for maintenance of an LNG immersed pump, which comprises a base. The fixing frame is fixedly mounted at the top of the base; the sliding frame is slidably connected to the inner side of the fixed frame, and the top of the sliding frame penetrates through the fixed frame; the control rod is rotationally connected to the top of the fixing frame; the control rod is arranged on the fixed frame, the threaded rods are arranged on the fixed frame, the control rod is arranged on the fixed frame, the positioning mechanism is respectively matched with the control rod, the fixed frame and the control mechanism, the positioning mechanism is used for positioning the position of the control rod, and the threaded rods can drive the attaching block to be attached to the bearing by placing the attaching sleeve on the outer side of the bearing and then rotating the threaded rods. The bearing is fixed on the inner side of the attaching sleeve, then the control rod is pulled, the sliding frame and the attaching sleeve can be lifted up through the control rod, the bearing is pulled out, the bearing is detached, and the immersed pump is convenient to maintain.

Description

Technical Field

[0001] The utility model relates to the technical field of submersible pump maintenance, in particular to a special tool for maintaining an LNG submersible pump. Background Art

[0002] The submersible pump usually includes a housing, a motor and an impeller. The motor is arranged in the housing, and the impeller is installed at the bottom end of the motor shaft and immersed in the liquid cargo. During the operation of the submersible pump, the motor drives the impeller to rotate, thereby pumping out the liquid cargo.

[0003] When the submersible pump is being repaired, the bearing of the submersible pump needs to be pulled out. However, the special repair tools in the prior art are not convenient to be connected and fixed with the bearings, and it is not convenient to pull out and disassemble the bearings, which affects the repair of the submersible pump. Therefore, the utility model proposes a special tool for repairing LNG submersible pumps to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings in the prior art that special maintenance tools are inconvenient to connect and fix with bearings, and it is inconvenient to pull out and disassemble the bearings, which affects the maintenance of submersible pumps, and to propose a special tool for repairing LNG submersible pumps.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A special tool for repairing LNG submersible pumps, including

[0007] Base;

[0008] A fixing frame, the fixing frame is fixedly mounted on the top of the base;

[0009] A sliding frame, wherein the sliding frame is slidably connected to the inner side of the fixed frame, and the top of the sliding frame passes through the fixed frame;

[0010] A control rod, the control rod being rotatably connected to the top of the fixing frame;

[0011] A positioning mechanism and a control mechanism, wherein the positioning mechanism cooperates with the control rod, the fixing frame and the control mechanism respectively, the positioning mechanism is used to position the control rod, and the control mechanism is used to position the control rod;

[0012] A fixing mechanism, the fixing mechanism comprising: a fitting sleeve, four fitting blocks and four threaded rods;

[0013] The fitting sleeve is fixedly installed at the bottom of the sliding frame, the fitting block is slidably connected to the inner side of the fitting sleeve, the threaded rod is rotationally connected to the fitting block, and the threaded rod is threadedly connected to the fitting sleeve.

[0014] As a preferred solution of the utility model, the positioning mechanism includes: a positioning frame and a matching frame;

[0015] The positioning frame is slidably connected to the front side of the control rod, and the matching frame is fixedly installed on the top of the fixing frame.

[0016] As a preferred solution of the utility model, the control mechanism includes: a fixed plate, a sliding block and a rotating rod;

[0017] The fixed plate is fixedly installed on the top of the positioning frame, the fixed plate is slidably connected with the sliding block, the sliding block is rotatably connected with the rotating rod, and the rotating rod is rotatably connected with the control rod.

[0018] As a preferred solution of the utility model, a positioning spring is fixedly installed on the left side of the positioning frame, a fixing block is fixedly installed on the left side of the positioning spring, and the fixing block is fixedly installed on the front side of the control rod.

[0019] As a preferred solution of the utility model, a positioning block is fixedly installed on the right side of the positioning frame, a positioning groove is opened on the left side of the matching frame, and the right side of the positioning block is detachably connected to the inner wall of the positioning groove.

[0020] As a preferred solution of the utility model, a rectangular through hole is opened on the front side of the control rod, a round block is fixedly installed on the front side of the sliding frame, and the outer side of the round block is slidably connected to the inner wall of the rectangular through hole. Beneficial Effects

[0021] After the positioning frame is engaged with the matching frame, the positioning frame can connect the fixing frame with the control rod to block the rotation of the control rod at the top of the fixing frame, so as to realize the positioning of the control rod, so that the control rod can position the position of the sliding frame, and thus realize the positioning of the fitting sleeve, so as to facilitate the installation of the fitting sleeve on the bearing;

[0022] After the rotating rod is pulled and rotated, the rotating rod can press the sliding block to slide on the right side of the fixed plate, and the fixed plate can be squeezed to the left side, so that the fixed plate can drive the positioning frame to move to the left side to disengage from the matching frame, thereby unlocking the control rod, and the control rod can be freely rotated, so that the control rod can bring up the fitting sleeve;

[0023] In the utility model: by placing a fitting sleeve on the outside of the bearing and then rotating a plurality of threaded rods, the threaded rods can drive the fitting block to fit with the bearing, fix the bearing on the inside of the fitting sleeve, and then pull the control rod, the control rod can lift the sliding frame and the fitting sleeve to pull out the bearing, thereby realizing the disassembly of the bearing and facilitating the maintenance of the submersible pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is the front view of the utility model;

[0025] Figure 2 It is a top view of the utility model;

[0026] Figure 3 It is a three-dimensional diagram of the utility model;

[0027] Figure 4 The utility model is attached Figure 1 A is an enlarged view.

[0028] In the figure: 1, base; 2, fixed frame; 3, sliding frame; 4, fitting sleeve; 5, fitting block; 6, threaded rod; 7, control rod; 8, fixed block; 9, positioning spring; 10, positioning frame; 11, fixed plate; 12, sliding block; 13, rotating rod; 14, matching frame. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Example

[0030] Reference Figure 1-Figure 4 , a special tool for LNG submersible pump maintenance, including

[0031] Base 1;

[0032] A fixing frame 2, the fixing frame 2 is fixedly installed on the top of the base 1;

[0033] A sliding frame 3 is slidably connected to the inner side of the fixed frame 2, and the top of the sliding frame 3 passes through the fixed frame 2;

[0034] A control rod 7, the control rod 7 is rotatably connected to the top of the fixed frame 2;

[0035] A positioning mechanism and a control mechanism, the positioning mechanism cooperates with the control rod 7, the fixing frame 2 and the control mechanism respectively, the positioning mechanism is used to locate the position of the control rod 7, and the control mechanism is used to locate the position of the control rod 7;

[0036] The fixing mechanism comprises: a fitting sleeve 4, four fitting blocks 5 and four threaded rods 6;

[0037] The fitting sleeve 4 is fixedly mounted on the bottom of the sliding frame 3 , the fitting block 5 is slidably connected to the inner side of the fitting sleeve 4 , the threaded rod 6 is rotationally connected to the fitting block 5 , and the threaded rod 6 is threadedly connected to the fitting sleeve 4 .

[0038] By means of the above structure: by placing the fitting sleeve 4 on the outside of the bearing, and then rotating multiple threaded rods 6, the threaded rods 6 can drive the fitting block 5 to fit with the bearing, fix the bearing on the inner side of the fitting sleeve 4, and then pull the control rod 7, the control rod 7 can lift the sliding frame 3 and the fitting sleeve 4 to pull out the bearing, thereby realizing the disassembly of the bearing and facilitating the maintenance of the submersible pump.

[0039] As a preferred solution of the utility model, the positioning mechanism includes: a positioning frame 10 and a matching frame 14;

[0040] The positioning frame 10 is slidably connected to the front side of the control rod 7, and the matching frame 14 is fixedly installed on the top of the fixing frame 2. After the positioning frame 10 is engaged with the matching frame 14, the positioning frame 10 can connect the fixing frame 2 with the control rod 7 to block the rotation of the control rod 7 at the top of the fixing frame 2, so as to realize the positioning of the control rod 7, so that the control rod 7 can position the position of the sliding frame 3, and thus realize the positioning of the fitting sleeve 4, which is convenient for installing the fitting sleeve 4 on the bearing.

[0041] As a preferred solution of the utility model, the control mechanism includes: a fixed plate 11, a sliding block 12 and a rotating rod 13;

[0042] The fixing plate 11 is fixedly installed on the top of the positioning frame 10, the fixing plate 11 is slidably connected with the sliding block 12, the sliding block 12 is rotatably connected with the rotating rod 13, and the rotating rod 13 is rotatably connected with the control rod 7. After the rotating rod 13 is pulled and rotated, the rotating rod 13 can press the sliding block 12 to slide on the right side of the fixing plate 11, and the fixing plate 11 can be squeezed to the left side, so that the fixing plate 11 can drive the positioning frame 10 to move to the left side to disengage from the matching frame 14, thereby unlocking the control rod 7, and the control rod 7 can be freely rotated so that the control rod 7 can lift the fitting sleeve 4.

[0043] As a preferred solution of the utility model, a positioning spring 9 is fixedly installed on the left side of the positioning frame 10, a fixing block 8 is fixedly installed on the left side of the positioning spring 9, and the fixing block 8 is fixedly installed on the front side of the control rod 7. The positioning spring 9 is used to reset the position of the positioning frame 10 so that the positioning frame 10 can automatically engage with the matching frame 14 to automatically position the control rod 7.

[0044] As a preferred solution of the utility model, a positioning block is fixedly installed on the right side of the positioning frame 10, and a positioning groove is opened on the left side of the matching frame 14. The right side of the positioning block is detachably connected to the inner wall of the positioning groove. After the positioning block is inserted into the inner side of the positioning groove, the positioning block can prevent the control rod 7 from rotating, so that the control rod 7 is positioned.

[0045] As a preferred solution of the utility model, a rectangular through hole is opened on the front side of the control rod 7, and a round block is fixedly installed on the front side of the sliding frame 3. The outer side of the round block is slidably connected to the inner wall of the rectangular through hole. The round block is used to connect the control rod 7 and the sliding frame 3, so that the control rod 7 can lift the sliding frame 3 after being pulled and rotated.

[0046] The working principle of the utility model is as follows: when it is necessary to fix the bearing on the submersible pump, it is necessary to first place the fitting sleeve 4 on the outside of the bearing, and then rotate the threaded rod 6 on the fitting sleeve 4, the threaded rod 6 can drive the fitting block 5 to fit with the outside of the bearing, and after the four fitting blocks 5 are all fitted with the bearing, the fitting sleeve 4 can be fixed to the outside of the bearing, and then press the fixing frame 2, and first rotate the rotating rod 13 on the control rod 7, after the rotating rod 13 is pulled and rotated, the rotating rod 13 can press the sliding block 12 to slide on the right side of the fixing plate 11, and the fixing plate 11 can be squeezed to the left, so that the fixing plate 11 can drive the positioning frame 10 to move to the left to disengage from the matching frame 14, thereby unlocking the control rod 7, and then The control rod 7 can be rotated freely. At this time, the control rod 7 is pulled to rotate, and the control rod 7 can lift the sliding frame 3 through the round block, and the sliding frame 3 can remove the bearing through the fitting sleeve 4, which is convenient for fixing the bearing. After the disassembly is completed, the control rod 7 is pressed to reset, and the positioning frame 10 on the control rod 7 can automatically engage with the matching frame 14. After the positioning frame 10 engages with the matching frame 14, the positioning frame 10 can connect the fixing frame 2 with the control rod 7 to block the rotation of the control rod 7 at the top of the fixing frame 2, so as to realize the positioning of the control rod 7, so that the control rod 7 can position the position of the sliding frame 3, and also can realize the positioning of the fitting sleeve 4, which is convenient for removing the bearing and installing the fitting sleeve 4 on the bearing.

[0047] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A special tool for repairing LNG submersible pumps, characterized in that: include Base (1); A fixing frame (2), wherein the fixing frame (2) is fixedly mounted on the top of the base (1); A sliding frame (3), wherein the sliding frame (3) is slidably connected to the inner side of the fixed frame (2), and the top of the sliding frame (3) passes through the fixed frame (2); A control rod (7), the control rod (7) being rotatably connected to the top of the fixing frame (2); a positioning mechanism and a control mechanism, wherein the positioning mechanism cooperates with the control rod (7), the fixing frame (2) and the control mechanism respectively, the positioning mechanism is used to locate the position of the control rod (7), and the control mechanism is used to locate the position of the control rod (7); A fixing mechanism, the fixing mechanism comprising: a fitting sleeve (4), four fitting blocks (5) and four threaded rods (6); The fitting sleeve (4) is fixedly mounted on the bottom of the sliding frame (3), the fitting block (5) is slidably connected to the inner side of the fitting sleeve (4), the threaded rod (6) is rotatably connected to the fitting block (5), and the threaded rod (6) is threadedly connected to the fitting sleeve (4).

2. A special tool for repairing LNG submersible pumps according to claim 1, characterized in that: The positioning mechanism comprises: a positioning frame (10) and a matching frame (14); The positioning frame (10) is slidably connected to the front side of the control rod (7), and the matching frame (14) is fixedly installed on the top of the fixing frame (2).

3. A special tool for repairing LNG submersible pumps according to claim 1, characterized in that: The control mechanism comprises: a fixed plate (11), a sliding block (12) and a rotating rod (13); The fixed plate (11) is fixedly mounted on the top of the positioning frame (10), the fixed plate (11) is slidably connected to the sliding block (12), the sliding block (12) is rotatably connected to the rotating rod (13), and the rotating rod (13) is rotatably connected to the control rod (7).

4. A special tool for repairing LNG submersible pumps according to claim 2, characterized in that: A positioning spring (9) is fixedly mounted on the left side of the positioning frame (10), a fixing block (8) is fixedly mounted on the left side of the positioning spring (9), and the fixing block (8) is fixedly mounted on the front side of the control rod (7).

5. A special tool for repairing LNG submersible pumps according to claim 2, characterized in that: A positioning block is fixedly mounted on the right side of the positioning frame (10), a positioning groove is provided on the left side of the matching frame (14), and the right side of the positioning block is detachably engaged with the inner wall of the positioning groove.

6. A special tool for repairing LNG submersible pumps according to claim 1, characterized in that: A rectangular through hole is provided on the front side of the control rod (7), a round block is fixedly mounted on the front side of the sliding frame (3), and the outer side of the round block is slidably connected to the inner wall of the rectangular through hole.

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