Drawing instrument for overhauling water pump bearing

Abstract

The utility model relates to the field of water pump bearing maintenance, in particular to a drawing instrument for water pump bearing maintenance. The utility model provides a drawing instrument for overhauling a water pump bearing, which can be used for directly disassembling and overhauling the water pump bearing underground, improving the overhauling efficiency of the water pump bearing and reducing the potential safety hazard at the same time. A drawing instrument for overhauling a water pump bearing comprises a threaded column, an upper end column, a threaded sleeve ring, connecting section rods and the like, the upper end column is connected to the upper portion of the threaded column, the threaded sleeve ring is connected to the lower portion of the threaded column in a threaded mode, and the connecting section rods are rotationally connected to the threaded sleeve ring. The screw moves downwards to be in contact with the bearing, the bearing is fixed to the claw, then the screw is pulled to move through the pull rod, the claw is driven to move, the bearing is pulled out of the water pump, and the effects that the water pump bearing can be directly disassembled and overhauled underground, the overhauling effect of the water pump bearing is improved, and meanwhile potential safety hazards are reduced are achieved.

Description

Technical Field

[0001] The utility model relates to the field of water pump bearing maintenance, in particular to a pulling instrument for water pump bearing maintenance. Background Art

[0002] During routine maintenance of centrifugal pumps in the underground pump rooms of the electromechanical team, the bearings of the water pumps need to be inspected. The existing water pump bearing inspection generally involves lifting the water pump from the well and then using a puller to remove the bearings from the water pump for inspection. However, due to the large size of the water pump, the workload is large during lifting, and there are major safety hazards during lifting and transportation of large parts in the well. The existing puller cannot directly disassemble and inspect the water pump bearings underground, which is inconvenient.

[0003] Therefore, a puller for water pump bearing maintenance has been developed that can directly disassemble and repair water pump bearings underground, thereby improving the maintenance efficiency of water pump bearings and reducing safety hazards. Utility Model Content

[0004] In order to overcome the shortcomings of existing water pump bearing maintenance, such as large workload when lifting the water pump and lifting large pieces in the well, which poses great safety hazards during lifting and transportation, the utility model provides a water pump bearing maintenance pulling instrument that can directly disassemble and repair the water pump bearing underground, thereby improving the maintenance efficiency of the water pump bearing and reducing safety hazards.

[0005] The technical solution is: a pulling instrument for inspecting and repairing water pump bearings, including a threaded column, an upper end column, a screw collar, a connecting rod, claws, an adjusting mechanism and an auxiliary mechanism. The upper part of the threaded column is connected to the upper end column, the lower part of the threaded column is threadedly connected to the screw collar, a plurality of connecting rods are rotatably connected to the screw collar, and claws are rotatably connected to the connecting rods. An adjusting mechanism capable of adjusting the claws is provided on the threaded column, and an auxiliary mechanism capable of fixing the water pump bearing is provided between the threaded column and the upper end column.

[0006] As a further preferred solution, the adjustment mechanism includes a movable ring and a locking block. The movable ring is locked in the middle of the threaded column, and the locking block is slidably connected to the front side of the movable ring. The locking block is locked with the upper end column, and the locking block is pushed to separate from the upper end column, and then the movable ring is moved downward on the threaded column, so that the claws are retracted to clamp the bearing.

[0007] As a further preferred solution, a handle is also included. The middle part of the blocking block is connected with the handle, and the blocking block is pushed to move by the handle.

[0008] As a further preferred solution, an auxiliary mechanism is also included, which includes a screw and a pull rod. The screw is threadedly connected between the threaded column and the upper end column, and the pull rod is connected to the upper side of the screw, so that the screw moves downward to contact the bearing and fix the bearing on the claw.

[0009] As a further preferred solution, a hand wheel is also included. The upper part of the screw rod is connected with the hand wheel, and the screw rod is rotated by the hand wheel.

[0010] As a further preferred solution, a through hole is opened on the pull rod.

[0011] The utility model has the following advantages: the utility model fixes the bearing on the claw by moving the screw rod downward to contact the bearing, and then pulls the screw rod to move by the pull rod, drives the claw to move, and pulls the bearing out of the water pump, so that the water pump bearing can be directly disassembled and repaired underground, thereby improving the maintenance efficiency of the water pump bearing and reducing safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0013] Figure 2 It is a structural schematic diagram of the utility model.

[0014] Figure 3 It is a partial three-dimensional structural schematic diagram of the utility model.

[0015] Figure 4 It is a schematic diagram of the three-dimensional structure of the adjustment mechanism of the utility model.

[0016] Figure 5 It is a schematic diagram of a sectional three-dimensional structure of the auxiliary mechanism of the utility model.

[0017] The reference numbers in the figure are: 1-threaded column, 2-upper end column, 3-threaded ring, 4-connecting rod, 5-claw, 6-adjusting mechanism, 61-movable ring, 62-block, 63-handle, 7-auxiliary mechanism, 71-screw, 72-handwheel, 73-pull rod. DETAILED DESCRIPTION

[0018] The technical solution is further described below in conjunction with specific embodiments. It should be noted that the words indicating directions such as up, down, left, and right mentioned in this article are only for the position of the structure shown in the corresponding drawings. The serial numbers of the parts in this article, such as first, second, etc., are only used to distinguish the objects described and do not have any order or technical meaning. The words such as connection and coupling in this application include direct and indirect connection (coupling) unless otherwise specified.

[0019] A puller for water pump bearing maintenance, such as Figure 1-Figure 3As shown, it includes a threaded column 1, an upper end column 2, a screw collar 3, a connecting rod 4, a claw 5, an adjusting mechanism 6 and an auxiliary mechanism 7. The upper part of the threaded column 1 is connected to the upper end column 2, the lower part of the threaded column 1 is threadedly connected to the screw collar 3, four connecting rods 4 are rotatably connected to the screw collar 3, and the connecting rods 4 are all rotatably connected to the claws 5. The threaded column 1 is provided with an adjusting mechanism 6, and an auxiliary mechanism 7 is provided between the threaded column 1 and the upper end column 2.

[0020] like Figure 1 , Figure 2 and Figure 4 As shown, the adjustment mechanism 6 includes a movable ring 61, a locking block 62 and a handle 63. The movable ring 61 is locked in the middle of the threaded column 1, and the locking block 62 is slidably connected to the front side of the movable ring 61. The locking block 62 is locked with the upper end column 2, and the handle 63 is connected to the middle of the locking block 62.

[0021] like Figure 1 , Figure 2 and Figure 5 As shown, an auxiliary mechanism 7 is also included, which includes a screw 71, a hand wheel 72 and a pull rod 73. The screw 71 is threadedly connected between the threaded column 1 and the upper end column 2. The hand wheel 72 is connected to the upper part of the screw 71. The pull rod 73 is connected to the upper side of the screw 71. A pull ring is provided on the pull rod 73 to facilitate pulling the screw 71.

[0022] When the angle between the claws 5 is adjusted, the blocking block 62 can be pushed away from the upper end column 2 by the handle 63, and the movable ring 61 can be moved downward on the threaded column 1 so that the claws 5 can be retracted to clamp the bearing. After the bearing is fixed, the blocking block 62 is pushed to re-engage with the upper end column 2 to fix the movable ring 61 so that the claws 5 are fixed. Then, the screw rod 71 is rotated by the hand wheel 72 to move the screw rod 71 downward to contact the bearing and fix the bearing on the claw 5. Subsequently, the screw rod 71 is pulled by the pull rod 73 to move, driving the claw 5 to move and pulling the bearing out of the water pump, thereby achieving the effect of directly disassembling and repairing the water pump bearing in the well, improving the repair efficiency of the water pump bearing and reducing safety hazards.

[0023] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A puller for inspecting and repairing water pump bearings, characterized in that: The invention comprises a threaded column (1), an upper end column (2), a threaded collar (3), a connecting rod (4), a claw (5), an adjusting mechanism (6) and an auxiliary mechanism (7); the upper part of the threaded column (1) is connected to the upper end column (2); the lower part of the threaded column (1) is threadedly connected to the threaded collar (3); a plurality of connecting rods (4) are rotatably connected to the threaded collar (3); the connecting rods (4) are all rotatably connected to the claws (5); the threaded column (1) is provided with an adjusting mechanism (6) capable of adjusting the claws (5); and an auxiliary mechanism (7) capable of fixing a water pump bearing is provided between the threaded column (1) and the upper end column (2).

2. A puller for water pump bearing maintenance as claimed in claim 1, characterized in that: The adjusting mechanism (6) comprises a movable ring (61) and a clamping block (62). The movable ring (61) is clamped in the middle of the threaded column (1). The clamping block (62) is slidably connected to the front side of the movable ring (61). The clamping block (62) is clamped with the upper end column (2). The clamping block (62) is pushed to separate from the upper end column (2), and then the movable ring (61) is moved downward on the threaded column (1), so that the claws (5) are retracted to clamp the bearing.

3. A puller for inspecting and repairing water pump bearings as claimed in claim 2, characterized in that: It also includes a handle (63), the middle part of the locking block (62) is connected with the handle (63), and the locking block (62) is pushed to move by the handle (63).

4. A puller for water pump bearing maintenance as claimed in claim 1, characterized in that: The auxiliary mechanism (7) also includes a screw (71) and a pull rod (73). The screw (71) is threadedly connected between the threaded column (1) and the upper end column (2). The pull rod (73) is connected to the upper side of the screw (71), so that the screw (71) moves downward to contact the bearing, thereby fixing the bearing on the claw (5).

5. A puller for water pump bearing maintenance as claimed in claim 4, characterized in that: The invention also comprises a hand wheel (72), the upper part of the screw rod (71) is connected with the hand wheel (72), and the screw rod (71) is rotated by the hand wheel (72).

6. A puller for inspecting and repairing water pump bearings as claimed in claim 4, characterized in that: The pull rod (73) is provided with a through hole.

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