Impeller dismounting and pulling device of water ring vacuum pump

Abstract

The utility model relates to an impeller dismounting and pulling device of a water ring vacuum pump. The impeller dismounting and pulling device of the water ring vacuum pump comprises a two-claw hydraulic puller and a fixing device, wherein the two-claw hydraulic puller is mounted on the fixing device; the fixing device comprises a dismounting and pulling plate, a pulling through hole corresponding to a pump shaft is formed in the dismounting and pulling plate, mounting holes corresponding to reserved bolt holes of an impeller of the water ring vacuum pump are formed in the positions, on the two sides of the pulling through hole, of the dismounting and pulling plate, an output shaft of the two-claw hydraulic puller corresponds to the pulling through hole, and pulling claws of the two-claw hydraulic puller are connected with the dismounting and pulling plate. The labor intensity of operators is reduced, the number of the operators is reduced, and the labor cost is saved; the impeller dismounting and pulling speed is increased, and the maintenance efficiency is improved; and the damage to the impeller and the pump shaft when the impeller is disassembled and pulled is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of disassembling impellers, and in particular to a device for disassembling impellers of a water ring vacuum pump. Background Art

[0002] In the related technology, a simple pull plate suitable for the size of the water ring vacuum pump impeller to be removed is made of 20mm-30mm iron plate and fixed to the bolt hole reserved for the impeller. A hole is opened and tapped at the position of the pump shaft, and then the impeller is pushed out using a screw. When pushing the screw in, other tools are needed to clamp the impeller to prevent the impeller and the screw from rotating at the same time, otherwise the impeller cannot be pulled out.

[0003] The existing device has the following problems:

[0004] 1. The screw rod is in direct contact with the pump shaft, which increases the friction resistance. The screw rod is difficult to twist, requiring a large amount of manpower, and the removal speed is slow (it takes 2-3 people about 2 hours to remove the impeller), resulting in low efficiency in repairing the water ring vacuum pump;

[0005] 2. When the screw is pushed in, the pump shaft and the screw will rotate simultaneously, requiring other tools to clamp the impeller, which can easily cause deformation and damage to the impeller;

[0006] 3. The pump shaft is easily damaged after the screw rod contacts and rubs with the pump shaft;

[0007] 4. It is difficult to repair the pump shaft and impeller after they are damaged when the impeller is removed, which will increase the cost of purchasing spare parts. Utility Model Content

[0008] In order to solve or partially solve the problems existing in the related art, the present application provides a water ring vacuum pump impeller removal device, which can reduce the labor intensity of operators, reduce the number of operators, save labor costs, and reduce damage to the impeller and pump shaft due to removal of the impeller.

[0009] The present application provides a device for removing and extracting an impeller of a water ring vacuum pump, comprising a two-claw hydraulic puller 1 and a fixing device, on which the two-claw hydraulic puller 1 is mounted; the fixing device comprises a removal and extraction plate 2, on which a pulling through hole 3 corresponding to the pump shaft is formed, and on both sides of the pulling through hole 3, mounting holes 4 corresponding to the reserved bolt holes of the impeller of the water ring vacuum pump are formed on the removal and extraction plate 2, the output shaft of the two-claw hydraulic puller 1 corresponds to the pulling through hole 3, and the pulling claws of the two-claw hydraulic puller 1 are connected to the removal and extraction plate 2.

[0010] Optionally, in some solutions, lifting ears 5 are provided at both ends of the upper surface of the removal pull plate 2 , a connecting rod 6 is hinged on the lifting ear 5 , and the upper end of the connecting rod 6 is hinged to the pulling claws of the two-claw hydraulic puller 1 .

[0011] The technical solution provided by this application may have the following beneficial effects:

[0012] This application reduces the labor intensity of operators, reduces the number of operators, and saves labor costs; speeds up the removal of the impeller, improves maintenance efficiency; and reduces damage to the impeller and pump shaft caused by removing the impeller.

[0013] Specifically, it reduces the labor intensity of maintenance personnel, and reduces the number of operators from 2-3 to 1 during maintenance, thus reducing labor costs; shortens the time for removing the impeller, and reduces the time from about 2 hours to 30 minutes to complete the removal work, thus effectively improving maintenance efficiency; reduces the damage to the impeller and pump shaft during operation, and saves the cost of purchasing spare parts.

[0014] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The above and other objects, features and advantages of the present application will become more apparent through a more detailed description of exemplary embodiments of the present application in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present application.

[0016] Figure 1 2 is a schematic structural diagram of a device for removing an impeller of a water ring vacuum pump shown in an embodiment of the present application;

[0017] Figure 2 It is a schematic structural diagram of a fixing device shown in an embodiment of the present application.

[0018] Reference numerals:

[0019] 1- Two-jaw hydraulic puller, 2- Pull plate, 3- Pulling through hole, 4- Mounting hole, 5- Lifting ear, 6- Connecting rod. DETAILED DESCRIPTION

[0020] The following describes embodiments of the present application in more detail with reference to the accompanying drawings. Although the accompanying drawings illustrate embodiments of the present application, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. Rather, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.

[0021] It should be understood that although the terms "first", "second", "third", etc. may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0022] In the description of this application, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0023] Unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be interpreted broadly. For example, they may refer to fixed or detachable connections, or integration; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0024] In response to the above problems, an embodiment of the present application provides a device for removing the impeller of a water ring vacuum pump, which can reduce the labor intensity of operators, reduce the number of operators, save labor costs, and reduce damage to the impeller and pump shaft due to removing the impeller.

[0025] The technical solutions of the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0026] See also Figure 1 The water ring vacuum pump impeller removal device includes a two-claw hydraulic puller 1 and a fixing device, and the two-claw hydraulic puller 1 is installed on the fixing device; the fixing device includes a removal and removal pull plate 2, and a pulling through hole 3 corresponding to the pump shaft is opened on the removal and removal pull plate 2, and mounting holes 4 corresponding to the reserved bolt holes of the water ring vacuum pump impeller are opened on the removal and removal pull plate 2 on both sides of the pulling through hole 3. The output shaft of the two-claw hydraulic puller 1 corresponds to the pulling through hole 3, and the pulling claws of the two-claw hydraulic puller 1 are connected to the removal and removal pull plate 2.

[0027] In some embodiments, see Figure 2The two ends of the upper surface of the pull plate 2 are provided with lifting ears 5, and the lifting ears 5 are hinged with a connecting rod 6, and the upper end of the connecting rod 6 is hinged with the pulling claws of the two-claw hydraulic puller 1.

[0028] During operation, bolts are used to pass through the mounting holes 4 to mount the removal plate 2 on the impeller of the water ring vacuum pump, driving the output shaft of the two-claw hydraulic puller 1 to work so that it rests against the pump shaft. The impeller is pulled out by pulling the removal plate 2 upwards. There is no rotation between the output shaft of the two-claw hydraulic puller 1 and the pump shaft, which reduces damage to the pump shaft during the removal process and eliminates the need to position the water ring vacuum pump, making it simple and convenient.

[0029] The labor intensity of maintenance personnel is reduced, and the number of operators during maintenance is reduced from 2-3 to 1, which reduces labor costs. The time for removing the impeller is shortened, from about 2 hours to 30 minutes, which effectively improves maintenance efficiency. The damage to the impeller and pump shaft during operation is reduced, saving the cost of purchasing spare parts.

[0030] Finally, it should be noted that, in this document, relationships such as first and second, etc., are used solely to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms include, comprise, or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0032] The embodiments of the present application have been described above. The above description is illustrative and not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is selected to best explain the principles of the embodiments, their practical applications, or improvements to the technology in the market, or to enable other persons skilled in the art to understand the embodiments disclosed herein.

Claims

1. A device for removing an impeller of a water ring vacuum pump, characterized by: The water ring vacuum pump impeller removal device comprises a two-claw hydraulic puller (1) and a fixing device, wherein the two-claw hydraulic puller (1) is mounted on the fixing device; the fixing device comprises a removal pull plate (2), a removal through hole (3) corresponding to the pump shaft is provided on the removal pull plate (2), mounting holes (4) corresponding to the bolt holes reserved for the water ring vacuum pump impeller are provided on the removal pull plate (2) on both sides of the removal through hole (3), the output shaft of the two-claw hydraulic puller (1) corresponds to the removal through hole (3), and the pulling claws of the two-claw hydraulic puller (1) are connected to the removal pull plate (2).

2. The impeller removal device for a water ring vacuum pump according to claim 1, characterized in that: Both ends of the upper surface of the pull plate (2) are provided with lifting ears (5), a connecting rod (6) is hinged on the lifting ears (5), and the upper end of the connecting rod (6) is hinged to the pulling claws of the two-claw hydraulic puller (1).

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