Tool for taking out shaft sleeve of pump shaft

Abstract

The utility model discloses a pump shaft sleeve taking-out tool which comprises a bearing plate of a circular structure, three sets of adjusting grooves are formed in the upper end of the bearing plate in an array mode, adjusting screw rods are installed in the adjusting grooves, screw blocks matched with the adjusting grooves in specification are arranged on the adjusting screw rods in a sleeved mode, and pull rods of an L-shaped structure are fixed to the bottom ends of the screw blocks. And an electromagnet is fixed on the bearing surface of the pull rod. The utility model has the beneficial effects that the electromagnet and the operation key are arranged on the pull rod, the electromagnet is controlled to be electrified through the operation key in the process that the pull rod pulls the pump shaft sleeve, and the pump shaft sleeve is adsorbed and fixed through the electromagnet by utilizing the characteristic that the pump shaft sleeve is made of an iron casting material, so that the stability of the connection between the pull rod and the pump shaft sleeve is ensured; the pull rod is prevented from being separated from the pump shaft sleeve in the pulling process, the pump shaft sleeve is protected, the taking-out effect and efficiency of the device are improved, and the using effect is good.

Description

TECHNICAL FIELD

[0001] The utility model relates to pump shaft sleeve maintenance tool technical field, concretely relates to a pump shaft sleeve extraction tool. BACKGROUND

[0002] The water supply pump of the cooling water of the hydroelectric generating set water turbine generator unit, the main variable cooling water supply pump, air conditioning water supply pump mostly are centrifugal pumps, in the process of overhauling or eliminating the defect to centrifugal pump, need to disassemble and assemble to centrifugal pump shaft sleeve, and then need the corresponding pump shaft sleeve extraction tool.

[0003] The existing pump shaft sleeve extraction tool is supported at the bottom end of the pump shaft sleeve by three groups of L-shaped pull rods during use, and then the pull rods exert a pulling force on the pump shaft sleeve under the action of screw transmission, so as to realize the separation of the pump shaft sleeve and the pump shaft. In the above-mentioned process, the contact area between the pull rod and the pump shaft sleeve is small, which can easily cause the pull rod and the pump shaft sleeve to separate during the separation process. Not only does it cause damage to the surface of the pump shaft sleeve, but also it results in poor use effect of the device. Therefore, there is an urgent need for a pump shaft sleeve extraction tool to solve the above-mentioned problems. SUMMARY

[0004] (I) Technical problem to be solved

[0005] The technical problem to be solved by the utility model is that the existing technology is improved by using the characteristics of the iron casting material of the shaft pump shaft sleeve to be adsorbed and fixed by an electromagnet, ensuring the stability of the connection between the pull rod and the pump shaft sleeve, and providing a pump shaft sleeve extraction tool with good use effect and high extraction efficiency.

[0006] (II) Technical scheme

[0007] The utility model discloses a pump shaft sleeve extraction tool, which comprises a bearing plate of circular structure, three groups of adjusting grooves are arranged on the upper end of the bearing plate, adjusting screws are installed in the adjusting grooves, screw blocks matched with the specifications of the adjusting grooves are sleeved on the adjusting screws, L-shaped pull rods are fixed at the bottom ends of the screw blocks, electromagnets are fixed on the bearing surfaces of the pull rods, operation buttons are installed on one side wall of the pull rod, a screw sleeve is fixed in the middle of the bearing plate, a drive screw is arranged in the screw sleeve, and a bearing seat is arranged at the bottom end of the drive screw.

[0008] Further, the adjusting grooves are formed on the bearing plate, the adjusting screws are rotatably installed in the adjusting grooves, and knobs are welded at one end of the adjusting screws.

[0009] By adopting the above technical scheme, the knobs can drive the adjusting screws to rotate.

[0010] Further, the screw block is connected with the adjusting screw through thread connection, and the screw block is connected with the adjusting groove through sliding connection.

[0011] By adopting the technical scheme, the screw block drives the pull rod to move under the action of the thread and the adjusting groove to adjust the position of the pull rod during rotation of the adjusting screw.

[0012] Further, the pull rod is fixed at the bottom end of the screw block through a screw, and a storage battery is arranged in the pull rod, and a charging hole is arranged on one side of the storage battery.

[0013] By adopting the technical scheme, the pull rod is in contact with the bottom surface of the pump shaft sleeve, and then the pull rod applies a pulling force to the shaft sleeve under the action of thread driving, so that the shaft sleeve is separated from the pump shaft, the charging hole is convenient for charging the storage battery, and the storage battery provides the required power for the electromagnet.

[0014] Further, the electromagnet is fixed on the pull rod through a screw, and the operation button is electrically connected with the electromagnet and the storage battery.

[0015] By adopting the technical scheme, the electromagnet is powered on through the operation button during the pulling process of the pull rod on the pump shaft sleeve, the shaft pump shaft sleeve is fixed by the electromagnet by utilizing the characteristic that the shaft pump shaft sleeve is made of iron, the stability of the connection between the pull rod and the pump shaft sleeve is ensured, the pull rod and the pump shaft sleeve are prevented from being separated during the pulling process, the pump shaft sleeve is protected, and the pulling effect and efficiency of the device are improved, and the use effect is good.

[0016] Further, the screw sleeve is embedded on the bearing plate, the driving screw is connected with the screw sleeve through thread connection, and the bearing seat is rotatably connected with the driving screw.

[0017] By adopting the technical scheme, when the pull rod is connected with the pump shaft sleeve, the driving screw is rotated, the bearing seat is contacted with the pump shaft under the action of the screw sleeve, and then the driving screw is continuously rotated, so that the pull rod applies a pulling force to the pump shaft sleeve.

[0018] Further, a hand wheel is connected with the top end of the driving screw through a screw, and a rubber sleeve is bonded on the surface of the hand wheel.

[0019] By adopting the technical scheme, the hand wheel is convenient for an operator to operate the driving screw.

[0020] (Three) beneficial effects

[0021] Compared with the prior art, the utility model has the following beneficial effects:

[0022] In order to solve the existing pump shaft sleeve extraction tool in the use process is through three groups of L type structure pull rod to pump shaft sleeve bottom end support, then under the action of threaded drive makes the pull rod to pump shaft sleeve exert tensile force, so as to realize the separation of pump shaft sleeve and pump shaft, the above-mentioned mode in the process of applying tension, due to the small contact area of the pull rod and pump shaft sleeve, and then in the separation process, the pull rod and pump shaft sleeve separation, not only cause damage to the surface of pump shaft sleeve, but also lead to the problem of poor use effect of the device, the utility model discloses a pull rod is provided with electromagnet and operation button, in the process of applying tension to pump shaft sleeve by pull rod, the electromagnet is controlled to be electrified through operation button, the characteristics of the pump shaft sleeve itself are used to be fixed by electromagnet, the stability of the pull rod and pump shaft sleeve connection is guaranteed, the pull rod and pump shaft sleeve are separated in the process of applying tension, not only the pump shaft sleeve is protected, but also the extraction effect and efficiency of the device are improved, and the use effect is good. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a structure diagram of the pump shaft sleeve extraction tool of the utility model;

[0024] Figure 2 It is a bottom view of the pump shaft sleeve extraction tool of the utility model;

[0025] Figure 3 It is a pump shaft sleeve extraction tool of the utility model Figure 1 The enlarged view of A in the middle.

[0026] The following is explained:

[0027] 1, bearing plate; 2, adjusting groove; 3, adjusting screw; 4, knob; 5, screw block; 6, drive screw; 7, hand wheel; 8, bearing seat; 9, pull rod; 10, operation button; 11, electromagnet; 12, charging hole; 13, screw sleeve. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantages of the utility model more clear, the utility model is further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model, and are not used to limit the utility model.

[0029] As Figures 1-3As shown, the pump shaft sleeve extraction tool in this embodiment includes a circular bearing plate 1, three groups of adjusting grooves 2 are arranged on the upper end of the bearing plate 1, adjusting screws 3 are installed in the adjusting grooves 2, knobs 4 can drive the adjusting screws 3 to rotate, screw blocks 5 matched with the specifications of the adjusting grooves 2 are sleeved on the adjusting screws 3, L-shaped pull rods 9 are fixed at the bottom ends of the screw blocks 5, during the rotation of the adjusting screws 3, the screw blocks 5 drive the pull rods 9 to move under the action of the threads and the adjusting grooves 2 to adjust the positions of the pull rods 9, electromagnets 11 are fixed on the bearing surfaces of the pull rods 9, operation buttons 10 are installed on the side walls of the pull rods 9, during the tensioning of the pump shaft sleeve by the pull rods 9, the electromagnets 11 are controlled to be electrified through the operation buttons 10, the pump shaft sleeve is adsorbed and fixed through the electromagnets 11 by taking advantage of the characteristics that the pump shaft sleeve is made of iron, the stability of the connection between the pull rods 9 and the pump shaft sleeve is ensured, the pull rods 9 and the pump shaft sleeve are prevented from being separated during the tensioning, the pump shaft sleeve is protected, and the extraction effect and efficiency of the device are improved, screw sleeves 13 are fixed in the middle parts of the bearing plate 1, drive screws 6 are arranged in the screw sleeves 13, bearing seats 8 are arranged at the bottom ends of the drive screws 6, after the pull rods 9 are connected with the pump shaft sleeve, the drive screws 6 are rotated to move under the action of the screw sleeves 13 and make the bearing seats 8 contact with the pump shaft, then the drive screws 6 are continuously rotated to tension the pump shaft sleeve through the pull rods 9.

[0030] As shown in the figure, Figures 1-3 In this embodiment, the adjusting grooves 2 are formed on the bearing plate 1, the adjusting screws 3 are rotatably installed in the adjusting grooves 2, the knobs 4 are welded at one ends of the adjusting screws 3, the screw blocks 5 are connected with the adjusting screws 3 through threads, the screw blocks 5 are slidably connected with the adjusting grooves 2, the pull rods 9 are fixed at the bottom ends of the screw blocks 5 through screws, battery packs are built in the pull rods 9, charging holes 12 are connected with one sides of the battery packs, the electromagnets 11 are fixed on the pull rods 9 through screws, and the operation buttons 10, the electromagnets 11 and the battery packs are electrically connected.

[0031] As shown in the figure, Figures 1-3 In this embodiment, the screw sleeves 13 are embedded on the bearing plate 1, the drive screws 6 are connected with the screw sleeves 13 through threads, the bearing seats 8 are rotatably connected with the drive screws 6, the hand wheels 7 are connected with the top ends of the drive screws 6 through screws, rubber sleeves are bonded on the surfaces of the hand wheels 7, and the hand wheels 7 are convenient for the staff to operate the drive screws 6.

[0032] The specific implementation process of the embodiment is as follows: in use, the adjusting screw 3 is driven to rotate by the knob 4, and then the screw block 5 is driven to move the pull rod 9 to contact the bottom end of the pump shaft bearing under the action of the screw thread and the adjusting groove 2, and then the solenoid 11 is controlled to be powered on by operating the button 10, the shaft pump shaft sleeve is adsorbed and fixed by the solenoid 11 by using the characteristics that the shaft pump shaft sleeve is made of iron cast material, the stability of the connection between the pull rod 9 and the pump shaft sleeve is ensured, the pull rod 9 and the pump shaft sleeve are prevented from being separated during the tensioning process, the pump shaft sleeve is protected, and the taking-out effect and efficiency of the device are improved, then the drive screw 6 is driven to rotate by the hand wheel 7, the drive screw 6 is moved under the action of the screw sleeve 13 and the bearing seat 8 is contacted with the pump shaft, then the drive screw 6 is continuously rotated, the pump shaft sleeve is tensioned by the pull rod 9, the pump shaft sleeve and the pump shaft are separated, and then the pump shaft sleeve is taken out.

[0033] The above description of the disclosed embodiments enables one skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A pump shaft bushing extraction tool characterized by: The application relates to a bearing plate (1) comprising a circular structure, three groups of adjusting grooves (2) are arranged in an array on the upper end of the bearing plate (1), adjusting screws (3) are arranged in the adjusting grooves (2), screw blocks (5) matched with the adjusting grooves (2) are arranged on the adjusting screws (3), L-shaped pull rods (9) are fixed to the bottom ends of the screw blocks (5), electromagnets (11) are fixed to the bearing surfaces of the pull rods (9), operation buttons (10) are arranged on one side wall of the pull rods (9), screw sleeves (13) are fixed to the middle parts of the bearing plate (1), driving screws (6) are arranged in the screw sleeves (13), and bearing seats (8) are arranged at the bottom ends of the driving screws (6).

2. A pump shaft sleeve extraction tool according to claim 1, wherein: The adjusting grooves (2) are formed on the bearing plate (1), the adjusting screws (3) are rotatably arranged in the adjusting grooves (2), and knobs (4) are welded to one ends of the adjusting screws (3).

3. A pump shaft sleeve extraction tool as defined in claim 1, wherein: The screw blocks (5) are connected with the adjusting screws (3) through threads, and the screw blocks (5) are slidably connected with the adjusting grooves (2).

4. A pump shaft sleeve extraction tool according to claim 3, wherein: The pull rods (9) are fixed to the bottom ends of the screw blocks (5) through screws, the pull rods (9) are internally provided with storage batteries, and the storage batteries are connected with charging holes (12) on one side.

5. A pump shaft sleeve extraction tool as defined in claim 4, wherein: The electromagnets (11) are fixed to the pull rods (9) through screws, and the operation buttons (10), the electromagnets (11) and the storage batteries are electrically connected.

6. A pump shaft sleeve extraction tool as defined in claim 5, wherein: The screw sleeves (13) are embedded in the bearing plate (1), the driving screws (6) are connected with the screw sleeves (13) through threads, and the bearing seats (8) are rotatably connected with the driving screws (6).

7. A pump shaft sleeve extraction tool as defined in claim 6, wherein: Hand wheels (7) are connected to the top ends of the driving screws (6) through screws, and rubber sleeves are bonded to surfaces of the hand wheels (7).

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