A connecting structure of a water suction pump and a diesel engine

Abstract

The utility model relates to water pump connection technical field discloses a connecting structure of water suction pump and diesel engine, and the input shaft of water suction pump is connected with the flywheel of diesel engine through the shaft coupling, and the shaft coupling includes first coupling disc, second coupling disc and elastic rubber block, first coupling disc and second coupling disc are opposite and coaxial arrangement, and first coupling disc is equipped with mounting hole, first coupling disc is equipped with first drive lug, and first drive lug is equipped with a plurality, second coupling disc is connected with the fly disc of diesel engine, second coupling disc is equipped with second drive lug, the number of second drive lug is consistent with the number of first drive lug, and one first drive lug is equipped between two second drive lugs, and elastic rubber block is filled between first drive lug and second drive lug. The utility model discloses first drive lug through elastic rubber block and transmits power to second drive lug, and elastic rubber block can play the role of buffering to vibration.

Description

Technical Field

[0001] This utility model relates to the field of water pump connection technology, and in particular to a connection structure between a water pump and a diesel engine. Background Technology

[0002] An emergency water pump is a portable fluid transport device specifically designed to respond to sudden floods, disaster relief, or temporary water supply needs. Its core features are rapid deployment, high mobility, and adaptability to various scenarios, making it widely used in flood control and drainage, fire-fighting water supply, agricultural irrigation, and industrial emergency response. Traditional water pumps typically connect their input shaft to the flywheel of a diesel engine, meaning the pump is driven by the diesel engine. Generally, the axial dimension of this connection is relatively large, resulting in significant vibration during operation, which can affect product safety and the comfort of the working environment. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a connection structure between a water pump and a diesel engine that can buffer vibration.

[0004] To solve the above-mentioned technical problems, this utility model provides a connection structure between a water pump and a diesel engine. The input shaft of the water pump is connected to the flywheel of the diesel engine via a coupling. The coupling includes a first connecting plate, a second connecting plate, and an elastic rubber block. The first connecting plate and the second connecting plate are opposite to each other and coaxially arranged. The first connecting plate has a mounting hole for inserting the input shaft of the water pump. A first transmission protrusion is provided on the side of the first connecting plate near the second connecting plate. Multiple first transmission protrusions are provided and arranged around the axis of the first connecting plate. The second connecting plate is connected to the flywheel of the diesel engine. A second transmission protrusion is provided on the side of the second connecting plate near the first connecting plate. The number of second transmission protrusions is the same as the number of first transmission protrusions and they are arranged around the axis of the second connecting plate. A first transmission protrusion is provided between two adjacent second transmission protrusions. The elastic rubber block is filled between the first transmission protrusion and the second transmission protrusion.

[0005] As a preferred embodiment of the present invention, the coupling further includes a protective sleeve, which is fitted onto the first connecting disc and the second connecting disc and surrounds the elastic rubber block.

[0006] As a preferred embodiment of this utility model, the protective sleeve is provided with a connecting ring plate, which is fitted to the side of the first connecting plate away from the second connecting plate, and the connecting ring plate is fixedly connected to the second connecting plate by fixing bolts.

[0007] As a preferred embodiment of this utility model, the first transmission protrusion and the second transmission protrusion are respectively fan-shaped, and the first connecting plate and the second connecting plate are respectively provided with limiting protrusions on their adjacent sides. The outer diameter of the limiting protrusion is equal to the inner diameter of the first transmission protrusion and the inner diameter of the second transmission protrusion.

[0008] As a preferred embodiment of this utility model, a protective cover is installed on the side of the diesel engine near the water pump, the protective cover covers the coupling, and the side of the protective cover near the water pump has an opening for the input shaft of the water pump to extend into.

[0009] As a preferred embodiment of this utility model, the flywheel of the diesel engine is provided with a plurality of fixing holes evenly distributed around its axis. The second connecting plate is coaxially arranged with the flywheel of the diesel engine. The second connecting plate is provided with connecting through holes evenly distributed around its axis. The connecting through holes correspond one-to-one with the fixing holes. The connecting bolts pass through the connecting through holes and are threadedly connected to the fixing holes.

[0010] As a preferred embodiment of the present invention, the second connecting plate is provided with a positioning boss on the side away from the first connecting plate, and the fly disc of the diesel engine is provided with a first positioning groove that cooperates with the positioning boss.

[0011] As a preferred embodiment of this utility model, the diesel engine's disc is provided with a second positioning groove that mates with the second connecting disc.

[0012] This utility model provides a connection structure between a water pump and a diesel engine. Compared with the prior art, its advantages are as follows: when the diesel engine's fly disc drives the second connecting disc to rotate, the second transmission cam drives the first transmission cam to rotate through the elastic rubber block, thereby causing the first connecting disc to drive the input shaft of the water pump to rotate, i.e., driving the water pump to work; the first transmission cam transmits power to the second transmission cam through the elastic rubber block, which can buffer vibration, thereby reducing the impact of vibration on the operation of the water pump and the diesel engine, and reducing the impact on the working environment. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 yes Figure 1 A magnified view of a portion at point A; Figure 3 This is a sectional view of the coupling of this utility model; Figure 4 This is a structural diagram of the first connecting disk of this utility model; Figure 5 This is a structural diagram of the second connecting disk of this utility model; In the figure, there is a water pump 1; a coupling 2; a first connecting plate 21; a first transmission protrusion 211; a mounting hole 212; a second connecting plate 22; a second transmission protrusion 221; a connecting through hole 222; a connecting bolt 223; a positioning boss 224; an elastic rubber block 23; a protective sleeve 24; a connecting ring plate 241; a fixing bolt 242; a limiting boss 25; a diesel engine 3; a protective cover 31; a fixing hole 32; a first positioning groove 33; and a second positioning groove 34. Detailed Implementation

[0014] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0015] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0016] like Figure 1-5As shown in the preferred embodiment of this utility model, a connection structure between a water pump 1 and a diesel engine 3 is provided. The input shaft of the water pump 1 is connected to the flywheel of the diesel engine 3 via a coupling 2. The coupling 2 includes a first connecting plate 21, a second connecting plate 22, and an elastic rubber block 23. The first connecting plate 21 and the second connecting plate 22 are opposite to each other and coaxially arranged. The first connecting plate 21 is provided with a mounting hole 212 for the input shaft of the water pump 1 to be inserted. It can be understood that the mounting hole 212 is coaxially arranged with the first connecting plate 21. When the input shaft of the water pump 1 is inserted into the mounting hole 212, the input shaft of the water pump 1 can rotate together with the first connecting plate 21. For example, the input shaft of the water pump 1 is provided with a flat key, and the inner side of the mounting hole 212 is provided with a keyway that mates with the flat key. The first connecting plate 21 is close to the second connecting plate 22. A first transmission protrusion 211 is provided on one side of the 2. Multiple first transmission protrusions 211 are provided and arranged around the axis of the first connecting plate 21. Generally, the multiple first transmission protrusions 211 are evenly distributed. The second connecting plate 22 is connected to the fly disc of the diesel engine 3. The second connecting plate 22 and the fly disc of the diesel engine 3 are coaxially arranged. A second transmission protrusion 221 is provided on the side of the second connecting plate 22 close to the first connecting plate 21. The number of second transmission protrusions 221 is the same as the number of first transmission protrusions 211 and they are arranged around the axis of the second connecting plate 22. Generally, the second transmission protrusions 221 are evenly distributed. A first transmission protrusion 211 is provided between two adjacent second transmission protrusions 221. An elastic rubber block 23 is filled between the first transmission protrusion 211 and the second transmission protrusion 221.

[0017] The working principle of this embodiment is as follows: the input shaft of the water pump 1 is connected to the first connecting plate 21, and the fly disk of the diesel engine 3 is connected to the second connecting plate 22. Since the first transmission protrusion 211 is located between two adjacent second transmission protrusions 221, and an elastic rubber block 23 is provided between the first transmission protrusion 211 and the second transmission protrusion 221, when the fly disk of the diesel engine 3 drives the second connecting plate 22 to rotate, the second transmission protrusion 221 drives the first transmission protrusion 211 to rotate through the elastic rubber block 23, thereby causing the first connecting plate 21 to drive the input shaft of the water pump 1 to rotate, that is, to drive the water pump 1 to work; the first transmission protrusion 211 transmits power to the second transmission protrusion 221 through the elastic rubber block 23. The elastic rubber block 23 can buffer the vibration, thereby reducing the impact of vibration on the operation of the water pump 1 and the diesel engine 3, and reducing the impact on the working environment.

[0018] For example, the coupling 2 also includes a protective sleeve 24, which is fitted onto the first connecting plate 21 and the second connecting plate 22 and surrounds the elastic rubber block 23, that is, the outer side of the elastic rubber block 23 is in contact with the inner side of the protective sleeve 24, thereby preventing the elastic rubber from shifting outward.

[0019] For example, the protective sleeve 24 is provided with a connecting ring plate 241. The connecting ring plate 241 is attached to the side of the first connecting plate 21 away from the second connecting plate 22. The connecting ring plate 241 is fixedly connected to the second connecting plate 22 by a fixing bolt 242, that is, the connecting bolt 223 passes through the connecting ring plate 241 and is threadedly connected to the second connecting plate 22, thereby realizing the installation and fixation of the protective sleeve 24.

[0020] For example, the first transmission protrusion 211 and the second transmission protrusion 221 are respectively fan-shaped. The first connecting plate 21 and the second connecting plate 22 are respectively provided with limiting protrusions 25 on their close sides. The outer diameter of the limiting protrusion 25 is equal to the inner diameter of the first transmission protrusion 211 and the inner diameter of the second transmission protrusion 221. The inner side of the elastic rubber block 23 is in contact with the outer side of the limiting protrusion 25. That is, the setting of the limiting protrusion 25 can prevent the elastic rubber block 23 from shifting inward.

[0021] For example, a protective cover 31 is installed on the side of the diesel engine 3 near the water pump 1. The protective cover 31 covers the coupling 2. The side of the protective cover 31 near the water pump 1 has an opening for the input shaft of the water pump 1 to extend into. The protective cover 31 provides protection for the coupling 2.

[0022] For example, the flywheel of the diesel engine 3 is provided with a plurality of fixing holes 32 evenly distributed around its axis. The second connecting plate 22 is coaxially arranged with the flywheel of the diesel engine 3. The second connecting plate 22 is provided with connecting through holes 222 evenly distributed around its axis. The connecting through holes 222 correspond one-to-one with the fixing holes 32. The connecting bolts 223 pass through the connecting through holes 222 and are threadedly connected to the fixing holes 32, so as to realize the installation connection between the flywheel of the diesel engine 3 and the second connecting plate 22, which is easy to install and disassemble.

[0023] For example, the second connecting plate 22 has a positioning boss 224 on the side away from the first connecting plate 21, and the fly disc of the diesel engine 3 has a first positioning groove 33 that cooperates with the positioning boss 224. During assembly, the positioning boss 224 is embedded in the first positioning groove 33, which facilitates the positioning of the fly disc of the diesel engine 3 and the second connecting plate 22.

[0024] For example, the fly disc of the diesel engine 3 is provided with a second positioning groove 34 that mates with the second connecting disc 22. The second positioning groove 34 mates with the fly disc of the diesel engine 3, which facilitates the positioning of the two during assembly.

[0025] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. A connection structure between a water pump and a diesel engine, wherein the input shaft of the water pump is connected to the flywheel of the diesel engine via a coupling, characterized in that: The coupling includes a first connecting plate, a second connecting plate, and an elastic rubber block. The first connecting plate and the second connecting plate are opposite to each other and coaxially arranged. The first connecting plate has a mounting hole for the input shaft of the water pump to be inserted. The first connecting plate has a first transmission protrusion on the side near the second connecting plate. There are multiple first transmission protrusions arranged around the axis of the first connecting plate. The second connecting plate is connected to the fly disc of the diesel engine. The second connecting plate has a second transmission protrusion on the side near the first connecting plate. The number of second transmission protrusions is the same as the number of first transmission protrusions and they are arranged around the axis of the second connecting plate. There is a first transmission protrusion between two adjacent second transmission protrusions. The elastic rubber block is filled between the first transmission protrusion and the second transmission protrusion.

2. The connection structure between the water pump and the diesel engine according to claim 1, characterized in that: The coupling also includes a protective sleeve, which is fitted over the first connecting disc and the second connecting disc and surrounds the elastic rubber block.

3. The connection structure between the water pump and the diesel engine according to claim 2, characterized in that: The protective sleeve is provided with a connecting ring plate, which is attached to the side of the first connecting plate away from the second connecting plate, and the connecting ring plate is fixedly connected to the second connecting plate by fixing bolts.

4. The connection structure between the water pump and the diesel engine according to claim 1, characterized in that: The first transmission protrusion and the second transmission protrusion are respectively fan-shaped. The first connecting plate and the second connecting plate are respectively provided with limiting protrusions on their adjacent sides. The outer diameter of the limiting protrusion is equal to the inner diameter of the first transmission protrusion and the inner diameter of the second transmission protrusion.

5. The connection structure between the water pump and the diesel engine according to claim 1, characterized in that: A protective cover is installed on the side of the diesel engine near the water pump. The protective cover covers the coupling, and the side of the protective cover near the water pump has an opening for the input shaft of the water pump to extend into.

6. The connection structure between the water pump and the diesel engine according to claim 1, characterized in that: The flywheel of the diesel engine is provided with a plurality of fixing holes evenly distributed around its axis. The second connecting plate is coaxially arranged with the flywheel of the diesel engine. The second connecting plate is provided with connecting through holes evenly distributed around its axis. The connecting through holes correspond one-to-one with the fixing holes. The connecting bolts pass through the connecting through holes and are threadedly connected to the fixing holes.

7. The connection structure between the water pump and the diesel engine according to claim 1, characterized in that: The second connecting plate has a positioning boss on the side away from the first connecting plate, and the fly disc of the diesel engine has a first positioning groove that mates with the positioning boss.

8. The connection structure between the water pump and the diesel engine according to claim 1, characterized in that: The diesel engine's disc is provided with a second positioning groove that mates with the second connecting disc.

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