Disassembling and assembling tool for inlet sealing ring of marine dredging pump

Abstract

The utility model provides a dismounting tool for an inlet sealing ring of a marine dredging pump, and belongs to the technical field of dismounting tools. The disassembly and assembly tool for the inlet sealing ring of the dredge pump for the ship comprises a disc and lifting bolts, a first through hole is formed in the center of the disc, at least two threaded holes are evenly and symmetrically formed in the disc, the lifting bolts are detachably arranged in the threaded holes, and when the inlet sealing ring is installed, the first through hole is formed in the disc. After a positioning pin of the inlet sealing ring is aligned with a positioning hole in the front pump cover, the disc is placed above the inlet sealing ring, and force is applied downwards to reinforce connection between the inlet sealing ring and the front pump cover; when the inlet sealing ring is disassembled, the disc is arranged below the inlet sealing ring, the lifting bolt is lifted upwards, and the disc lifts the inlet sealing ring. The device is simple in structure and convenient to operate, and certain potential safety hazards can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of disassembly and assembly tools, in particular to a disassembly and assembly tool for an inlet sealing ring of a marine dredging pump. Background Art

[0002] Marine dredging pumps include suction dredger underwater pumps and cabin pumps. Suction dredger underwater pumps are usually used to meet the needs of deep-water sand dredging. In recent years, with the maturity of underwater dredge pump technology, underwater dredge pumps are increasingly used in channel dredging operations. Compared with the use of cabin pumps alone, installing underwater dredge pumps can effectively increase the suction concentration of the dredge pump, improve the loading efficiency, and improve the cavitation performance of the dredge pump and reduce vibration.

[0003] At present, the regular disassembly and maintenance and after-sales repair of marine dredging pumps need to be carried out directly on the dredger. Due to the limited space of the dredger and the inability of the lifting tools suitable for use on board to fully guarantee the safety of the installation and disassembly process, the regular disassembly and maintenance and after-sales repair of marine dredging pumps are difficult and the repair time is long, especially during the disassembly and installation of imported sealing rings.

[0004] During the process of safe disassembly, due to the heavy weight and special structure of the inlet sealing ring, there is no hole for lifting except the step that matches the inlet liner. When the step is hoisted with ordinary buckles or slings, it is impossible to fix the hook and the inlet sealing ring, which is very likely to slip and cause safety hazards, so it is difficult to hoist during assembly; during installation, the connection between the inlet sealing ring and the front pump cover has only a positioning pin, and the inlet sealing ring is easy to slip when the front pump cover and the inlet sealing ring joint are assembled with the front guard plate, which is easy to cause danger and loss. The same situation also exists when disassembling the inlet sealing ring, which is also easy to slip. For this reason, the utility model provides a disassembly and assembly tool for the inlet sealing ring of a marine dredging pump. Summary of the invention

[0005] In order to make up for the above shortcomings, the utility model provides a disassembly and assembly tool for the inlet sealing ring of a marine dredging pump, aiming to improve the problem that the inlet sealing ring of the existing marine dredging pump has no hole for lifting during disassembly and only has a positioning pin during installation, which is easy to slip, causing danger and loss.

[0006] The utility model is achieved in this way:

[0007] The utility model provides a tool for disassembling and assembling an inlet sealing ring of a marine dredging pump, comprising:

[0008] A disc, a first through hole is arranged at the center of the disc, and at least two threaded holes are evenly and symmetrically arranged on the disc;

[0009] At least two sets of eye screws, the eye screws being detachably disposed in the threaded holes;

[0010] Among them, when installing the inlet sealing ring, align the locating pin of the inlet sealing ring with the locating hole on the front pump cover, place the disc above the inlet sealing ring, and apply downward force to strengthen the connection between the inlet sealing ring and the front pump cover; when removing the inlet sealing ring, place the disc under the inlet sealing ring, lift the lifting screw upwards, and the disc will lift the inlet sealing ring.

[0011] Preferably, it also includes:

[0012] A long plate, wherein a second through hole is disposed at the center of the long plate;

[0013] a screw rod, the screw rod being disposed through the first through hole and the second through hole;

[0014] Two sets of nuts, the two nuts are detachably arranged at both ends of the screw rod;

[0015] When the inlet sealing ring is installed on the front pump cover, the disc is arranged above the inlet sealing ring, and the long plate is arranged at the lower edge of the front pump cover. One of the nuts is screwed so that the long plate and the disc tend to approach each other, thereby pressing the inlet sealing gasket onto the front pump cover.

[0016] Preferably, the edge of the disc is subjected to sharp-angle blunting treatment.

[0017] Preferably, a plurality of circular holes are evenly and symmetrically formed on the disc.

[0018] Preferably, a plurality of circular holes are evenly and symmetrically provided on the long plate.

[0019] Preferably, the edge of the screw is subjected to sharp-angle blunting treatment.

[0020] Preferably, the edges of the long plates are subjected to sharp-angle chamfering treatment.

[0021] The beneficial effects of the utility model are: 1. In a marine dredging pump inlet sealing ring disassembly and assembly tool provided by the utility model, when the inlet sealing ring is installed on the front pump cover, a disc is used to pressurize the inlet sealing ring, thereby strengthening the connection between the inlet sealing ring and the front pump cover, making it difficult for the inlet sealing ring to slip during installation, thereby achieving safe assembly between the inlet sealing ring and the front pump cover.

[0022] 2. In the disassembly and assembly tool for the inlet sealing ring of a marine dredging pump provided by the utility model, when the inlet sealing ring and the front pump cover are separated, a disc is set at the lower edge of the inlet sealing ring, and the lifting screw is hoisted to separate the inlet sealing ring from the front pump cover. The disc is supported on the lower edge of the inlet sealing ring so that it can be hoisted, which saves time and effort and reduces safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 A schematic cross-sectional structure diagram of a marine dredging pump inlet sealing ring disassembly and assembly tool (when the inlet sealing ring is installed on the front pump cover) provided by the embodiment of the utility model;

[0025] Figure 2 A schematic diagram of the cross-sectional structure of the disk and the lifting eye screw provided in the embodiment of the utility model when lifting the imported sealing ring;

[0026] Figure 3 A schematic cross-sectional structure diagram of a disassembly tool for an inlet sealing ring of a marine dredging pump (when the inlet sealing ring is disassembled from the front pump cover) provided by the embodiment of the utility model;

[0027] Figure 4 A top view of a disc provided for an embodiment of the utility model;

[0028] Figure 5 A top view of a long board provided for an embodiment of the utility model;

[0029] Figure 6 A side view of a screw provided in an embodiment of the utility model;

[0030] Figure 7 A schematic diagram of the positional relationship between the inlet sealing ring on the pump body and the front pump cover provided in an embodiment of the utility model.

[0031] In the figure: a disc 1, a first through hole 11, a threaded hole 12, a round hole 13, a lifting eye screw 2, a long plate 3, a second through hole 31, a screw rod 4, a nut 5, an inlet sealing ring 100, a front pump cover 200, a positioning pin 300, and a pump body 400. DETAILED DESCRIPTION

[0032] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific drawings.

[0033] It should be noted that, in the present invention, when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only and do not represent the only implementation method.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which the present invention belongs. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0035] Example

[0036] like Figure 1-7 As shown, the utility model provides a disassembly and assembly tool for the inlet sealing ring of a marine dredging pump, comprising: a disc 1, a lifting eye screw 2, a first through hole 11 is arranged at the center of the disc 1, at least two threaded holes 12 are evenly and symmetrically arranged on the disc 1, and the lifting eye screw 2 is detachably arranged in the threaded hole 12, wherein, as Figure 1 As shown, when installing the inlet sealing ring 100, after aligning the locating pin 300 of the inlet sealing ring 100 with the locating hole on the front pump cover 200, the disc 1 is placed above the inlet sealing ring 100, and force is applied downward to the edge of the ring to pressurize the inner edge of the inlet sealing ring 100, thereby strengthening the connection between the inlet sealing ring 100 and the front pump cover 200; when removing the inlet sealing ring 100, the disc 1 is set under the inlet sealing ring 100, and the lifting screw 2 is lifted upward, and the disc 1 lifts the inlet sealing ring 100, thereby realizing the separation between the inlet sealing ring 100 and the front pump cover 200.

[0037] It should be noted that when it is necessary to remove the inlet sealing ring 100, there are two situations. First, after the front pump cover 200 is disconnected from the pump body, the inlet sealing ring 100 and the front pump cover 200 are separated. The disc 1 is arranged below the inlet sealing ring 100 and can enter from the lower edge of the front pump cover 200; second, the current pump cover 200 and the pump body are not disconnected, and the inlet sealing ring 100 and the front pump cover 200 need to be separated. By utilizing the material properties of the inlet sealing ring 100, the disc 1 is squeezed obliquely under the inlet sealing ring 100, and then the lifting eye screw 2 is lifted by a hook. The lifting eye screw 2 is subjected to an upward pulling force. The hook should apply the same pulling force to each lifting eye screw 2, thereby ensuring the separation between the inlet sealing ring 100 and the front pump cover 200.

[0038] In this embodiment, it also includes: a long plate 3, a screw rod 4, and two sets of nuts 5. A second through hole 31 is set at the center of the long plate 3. The screw rod 4 is set in the first through hole 11 and the second through hole 31. The two nuts 5 are detachably set at the two ends of the screw rod 4. When the inlet sealing ring 100 is installed on the front pump cover 200, the disc 1 is set above the inlet sealing ring 100, and the long plate 3 is set at the lower edge of the front pump cover 200. Screwing one of the nuts 5 makes the long plate 3 and the disc 1 tend to approach each other, and the inlet sealing gasket is pressed against the front pump cover 200. The form of the long plate 3 and the screw 4 is as follows: Figure 5-6 As shown, the long plate 3 can be tilted to enter from the inlet end of the front pump cover 200 to the lower edge of the front pump cover 200, and the line connecting the center of the long plate 3 and the center of the disc 1 is on the axis of the front pump cover 200 and the inlet sealing ring 100. By screwing the nut 5 close to the inlet sealing ring 100, the disc 1 and the long plate 3 are brought closer to each other, thereby strengthening the connection between the inlet sealing ring 100 and the front pump cover 200.

[0039] In this embodiment, in order to prevent the device from causing damage to the operator when in use, the disc 1, the long plate 3, and the screw 4 are blunted at the edges. Figure 1-4 It should be noted that, in order to further facilitate the use of the operator, both sides of the disc 1 and the long plate 3 need to be processed flat.

[0040] In this embodiment, if Figure 4 As shown, a plurality of circular holes 13 are evenly and symmetrically provided on the disc 1 , and the circular holes 13 are used to reduce the dead weight of the disc 1 . Meanwhile, in order to reduce the weight of the long board 3 , a plurality of circular holes 13 can also be evenly and symmetrically provided on the long board 3 .

[0041] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A tool for disassembling and assembling the inlet sealing ring of a marine dredging pump, characterized in that: include: A disc, a first through hole is arranged at the center of the disc, and at least two threaded holes are evenly and symmetrically arranged on the disc; At least two sets of eye screws, the eye screws being detachably disposed in the threaded holes; Also includes: A long plate, wherein a second through hole is disposed at the center of the long plate; a screw rod, the screw rod being disposed through the first through hole and the second through hole; Two sets of nuts, the two nuts are detachably arranged at both ends of the screw rod; The edge of the disc is subjected to sharp-angle blunting treatment; The disc is provided with a plurality of circular holes evenly and symmetrically; The long plate is evenly and symmetrically provided with a plurality of circular holes; The edge of the screw is subjected to sharp-angle blunting treatment; The edges of the long plates are subjected to sharp-angle chamfering treatment.

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