Large sewage lift pump impeller dismounting device

Abstract

The utility model discloses a large sewage lift pump impeller dismounting device, which is used for dismounting and separating a connecting shaft and an impeller, and comprises a chassis, a hanging piece arranged on the chassis, a connecting chain arranged on the hanging piece and a jacking mechanism arranged on the chassis, the connecting chain is connected with the impeller, and the mounting extension end of the jacking mechanism is connected with the connecting shaft. The lifting frame comprises a supporting frame body, a pulley arranged in the center of the top of the supporting frame body, a lifting rope arranged on the pulley in a sliding mode and a lifting hook connected with the lifting rope, and the lifting hook is connected with the impeller. A plurality of mounting holes are formed in the base plate, and the hanging piece comprises a rod body matched with the mounting holes and a hook body matched with the connecting chain. A fixing nut in threaded fit with the rod body is arranged on the rod body, and the position of the rod body on the chassis is changed by adjusting the position of the fixing nut. The dismounting device is simple in structure, convenient to carry and use, capable of being combined through existing tools in a workshop to achieve dismounting of the impeller, high in dismounting efficiency and not prone to damaging the impeller.

Description

TECHNICAL FIELD

[0001] The utility model relates to dismantling frock structure field, especially a large -scale sewage lifting pump impeller dismantling device. BACKGROUND

[0002] In the domestic sewage treatment process, the construction of the sewage treatment plant will be distributed in the city river near the ground level above, and most of the sewage collection methods will be built in the ground below, and the underground sewage pipeline is connected, to achieve the purpose of collecting municipal pipe network sewage. The submersible sewage pump is an important part of the whole sewage collection and treatment, and the use characteristics of the submersible sewage pump are long running time, large lifting water volume, complex water quality and high degree of impeller wear. In the past operation process of the sewage plant, as the key structure, the submersible sewage pump is usually repaired and maintained in the factory, which affects the production and also increases the maintenance cost.

[0003] In order to not affect the production progress and save cost, many sewage operation and maintenance units have tried to repair the submersible sewage pump. During the use of the submersible sewage pump, the performance of the pump is often damaged due to the wear of the impeller. When disassembling, most of the users do not have special disassembling tools, and usually use a hammer to disassemble it. The disassembling time is long, the labor intensity is large, and the impeller is easily damaged during disassembling. The utility model can disassemble the impeller and the connecting shaft without damaging the impeller and the connecting shaft, improve the maintenance efficiency of the pump, and ensure the stable operation of the sewage plant. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a large -scale sewage lifting pump impeller dismantling device, which can disassemble the impeller and the connecting shaft without damaging the impeller and the connecting shaft, improve the maintenance efficiency of the pump, and ensure the stable operation of the sewage plant.

[0005] To solve the above technical problems, the utility model is realized by the following technical scheme: a large -scale sewage lifting pump impeller dismantling device is used to disassemble and separate the connecting shaft and the impeller, comprising a chassis, a hanging piece arranged on the chassis, a connecting chain arranged on the hanging piece and a jacking mechanism arranged on the chassis, the connecting chain is connected with the impeller, and the jacking mechanism installation extension end is connected with the connecting shaft.

[0006] As a further improvement of the above technical scheme:

[0007] Further comprising a hanging bracket, the hanging bracket comprises a support frame body, a pulley arranged at the top center of the support frame body, a lifting rope slidingly arranged on the pulley and a lifting hook connected with the lifting rope, and the lifting hook is connected with the impeller.

[0008] One end of the lifting rope is provided with a rope collecting mechanism.

[0009] The bottom plate is provided with several mounting holes, the hanging piece comprises a rod body matched with the mounting hole and a hook body matched with the connecting chain.

[0010] The rod body is provided with a fixing nut matched with the rod body in screw thread, and the position of the rod body on the bottom plate is changed by adjusting the position of the fixing nut.

[0011] The rod body is arranged in a regular polygonal shape, and the number of the rod body is at least three.

[0012] Compared with the prior art, the advantages of the utility model lie in that:

[0013] The dismounting device has the advantages of simple structure, convenient carrying, convenient use, high dismounting efficiency and low damage to the impeller. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to make the technical scheme of the embodiments of the utility model clearer, the following will briefly introduce the drawings needed to be used in the embodiment description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to the drawings without creative labor.

[0015] Figure 1 It is the structure schematic diagram of the dismounting device of the utility model;

[0016] Figure 2 It is the structure schematic diagram of the hanging bracket of the utility model;

[0017] Figure 3 It is the structure schematic diagram of the bottom plate of the utility model;

[0018] Figure 4 It is the structure schematic diagram of the hanging piece of the utility model.

[0019] In the drawings, the component list represented by each sign is as follows:

[0020] 1, bottom plate;10, impeller;11, mounting hole;2, hanging piece;20, connecting shaft;21, rod body;22, hook body;23, fixing nut;3, connecting chain;4, jacking mechanism;5, hanging bracket;50, support frame body;51, pulley;52, lifting rope. DETAILED DESCRIPTION

[0021] In order to make the above-mentioned purpose, features and advantages of the utility model more obvious and easy to understand, the following will make detailed description to the specific implementation of the utility model by combining with the drawings.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0024] like Figure 1 As shown, the large sewage lift pump impeller disassembly device of this embodiment is used to disassemble and separate the connecting shaft 20 and the impeller 10. It includes a chassis 1, a hanger 2 mounted on the chassis 1, a connecting chain 3 mounted on the hanger 2, and a lifting mechanism 4 mounted on the chassis 1. The connecting chain 3 is connected to the impeller 10, and the extended end of the lifting mechanism 4 is connected to the connecting shaft 20. The form and size of the connecting chain 3 are not limited here; a rope can also be used to connect the chassis 1 and the impeller 10. Chains can be added arbitrarily according to the size and shape of the impeller 10. The lifting mechanism 4 here uses a hydraulic jack. A suitable hydraulic jack can be selected according to the disassembly difficulty and requirements. Other drive mechanisms can also be used, not limited to linear drive mechanisms such as hydraulic cylinders and electric cylinders. If necessary, a protective sleeve can be provided on the outside of the connecting chain 3 to prevent damage to the surface of the impeller 10.

[0025] like Figure 2 As shown, it also includes a hanger 5, which includes a support frame 50, a pulley 51 located at the top center of the support frame 50, a lifting rope 52 slidably mounted on the pulley 51, and a hook connected to the lifting rope 52. The hook is connected to the impeller 10. The hook is not limited to a hook-shaped structure; it can be a clamp structure, which is used to connect to the impeller 10. The function of the hanger 5 is to lift the impeller 10, facilitating the installation and disassembly of the disassembly device. One end of the lifting rope 52 is equipped with a rope winding mechanism. This rope winding mechanism can be an electric winch or a hand-cranked winch structure. This rope winding structure is a common structure, and its specific structure is not shown here.

[0026] like Figure 3 and Figure 4 As shown, the chassis 1 is provided with a number of mounting holes 11, and the hanger 2 includes a rod 21 that mates with the mounting holes 11 and a hook 22 that mates with the connecting chain 3.

[0027] A fixing nut 23 is provided on the rod body 21 and is threaded to it. The position of the rod body 21 on the base plate 1 can be changed by adjusting the position of the fixing nut 23. The mounting hole 11 can be threaded to the rod body 21. Since the force applied is large, it is easy to cause the threads to come loose. Therefore, the fixing nut 23 is provided to ensure safety.

[0028] The rod bodies 21 are arranged in a regular polygon, and the number is at least three. According to the structure selection of the impeller 10, the proper number of rod bodies 21 is installed, and the regular polygon is beneficial to ensure force balance, which is not limited to the regular polygon, and other stable forms of shapes can also be adopted.

[0029] In use, the impeller 10 to be disassembled is fixed and hung on the lifting rope 52 through the lifting bracket 5 through a hook or other fixing part, is contracted through the contraction mechanism, is lifted off the ground, one end of the connecting chain 3 is fixed on the impeller 10, the other end is hung on the hook body 22, the base plate 1 is leveled by adjusting the position of the fixing nut 23 on the rod body 21, the jacking mechanism 4 is installed at the lower end of the base plate 1, the upper end is in contact with the connecting shaft 20, the base plate 1 is further leveled to be in a balanced state, at this time, the jacking mechanism 4 is started, the impeller 10 is separated from the connecting shaft 20 through the force on the connecting shaft 20, the disassembly of the impeller 10 is completed, compared with the traditional knocking hammer disassembly mode, the disassembly device of the embodiment does not cause damage to the impeller 10 and the connecting shaft 20, the disassembly efficiency is high, and it is beneficial to impeller maintenance and replacement.

[0030] In the description of the utility model, need explanation further, unless have explicit provision and limitation, term " set ", " install ", " link ", " connect " should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected, can be mechanical connection, also can be electrical connection, can be directly connected, also can be indirectly connected through intermediate medium, can be two elements inside intercommunication. For ordinary skilled person in the art, the above-mentioned terms can be understood according to the specific meaning of the utility model.

[0031] Finally, it should be noted that: the above-mentioned only for the preferred embodiment of the utility model, and does not limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art, it still can modify the technical scheme recorded in the foregoing embodiments, or equivalent replacement to part of technical features. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the utility model, should be included in the protection scope of the utility model.

Claims

1. A large sewage lift pump impeller disassembly device, used to disassemble and separate the connecting shaft (20) and the impeller (10), characterized in that, It includes a chassis (1), a hanger (2) set on the chassis (1), a connecting chain (3) set on the hanger (2), and a lifting mechanism (4) set on the chassis (1). The connecting chain (3) is connected to the impeller (10), and the lifting mechanism (4) has an extended end connected to the connecting shaft (20).

2. The impeller disassembly device for a large sewage lift pump according to claim 1, characterized in that, It also includes a hanger (5), which includes a support frame (50), a pulley (51) located at the top center of the support frame (50), a slidable rope (52) on the pulley (51), and a hook connected to the rope (52). The hook is connected to the impeller (10).

3. The impeller disassembly device for a large sewage lift pump according to claim 2, characterized in that, One end of the hoisting rope (52) is equipped with a rope winding mechanism.

4. The impeller disassembly device for a large sewage lift pump according to claim 1, characterized in that, The chassis (1) is provided with a plurality of mounting holes (11), and the hanging part (2) includes a rod (21) that cooperates with the mounting holes (11) and a hook (22) that cooperates with the connecting chain (3).

5. The impeller disassembly device for a large sewage lift pump according to claim 4, characterized in that, The rod (21) is provided with a fixed nut (23) that is threaded to it. The position of the rod (21) on the chassis (1) can be changed by adjusting the position of the fixed nut (23).

6. The impeller disassembly device for a large sewage lift pump according to claim 5, characterized in that, The rods (21) are arranged in a regular polygonal shape, and the number is at least 3.

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