Centrifugal pump with damping base

Abstract

The centrifugal pump comprises the base, a bearing platform and a pump body, the bearing platform is welded to the upper end of one side of the base, a first supporting platform is erected in the middle of the upper end of the base, a second supporting platform is additionally arranged at the end, away from the bearing platform, of the base, an I-shaped groove is formed in the middle of the bearing platform, and the pump body is arranged in the I-shaped groove. And screw holes are formed in the bearing platform along the two sides of the I-shaped groove, studs are plugged into the screw holes, a pump body is erected at the upper end of the bearing platform, and fixing supporting feet are welded to the joint of the pump body and the bearing platform. When the centrifugal pump with the damping base is used, the rubber pad and the base are connected in an embedded mode, the connecting ends are connected in a fastened mode through screws, meanwhile, the rubber pad serves as a damping material to be completely embedded into a hole groove of the base to block the hole groove of the base, the rubber pad is connected with the factory ground, and the requirements for damping and noise reduction are met.

Description

Technical Field

[0001] The utility model relates to the technical field of centrifugal pumps, in particular to a centrifugal pump with a shock-absorbing base. Background Art

[0002] The centrifugal pump works by rotating the impeller to make the water move centrifugally. Before starting the water pump, the pump casing and the water suction pipe must be filled with water, and then the motor is started so that the pump shaft drives the impeller and water to rotate at high speed. The water moves centrifugally and is thrown to the outer edge of the impeller, flowing into the water pressure pipeline of the water pump through the flow channel of the volute pump casing. At the same time, the base acts as a supporting and fixing component of the centrifugal pump, which plays a role in protecting the centrifugal pump and ensuring the long-term stable operation of the centrifugal pump.

[0003] The utility model relates to the technical field of centrifugal pumps, specifically to a centrifugal pump base (CN210799477U), a centrifugal pump base, including a base, a plurality of ear plates are arranged on the side of the base, a motor mounting platform and a pump body mounting platform are arranged on both sides of the upper surface of the base, and the height of the pump body mounting platform is adjusted up and down by an adjustment mechanism. The adjustment mechanism includes a plurality of external threaded columns vertically arranged on the upper surface of the base, the external threaded columns penetrate the pump body mounting platform, and the external threaded columns and the pump body mounting platform are connected by nuts; a U-shaped pad is arranged outside the external threaded column, and the height of the pump body mounting platform is adjusted by the U-shaped pad. The utility model can realize the adjustment of the pump body mounting platform in the vertical direction, and can collect and detect the oil leakage of the shaft seal. However, in use, the pump body and the base are mostly fastened with bolts. During the long-term operation of the centrifugal pump, a small displacement may occur between the U-shaped base and the bolts, resulting in a slight eccentricity of the pump shaft, resulting in deformation or fracture of the pump shaft during long-term operation, thereby reducing the service life of the centrifugal pump.

[0004] To this end, we propose a centrifugal pump with a shock-absorbing base. Utility Model Content

[0005] The utility model aims to provide a centrifugal pump with a shock-absorbing base to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a centrifugal pump with a shock-absorbing base, comprising a base, a pedestal and a pump body, a pedestal being welded to the upper end of one side of the base, and a first support being arranged in the middle of the upper end of the base, a second support being installed at the end of the base away from the pedestal, an I-shaped groove being provided in the middle of the pedestal, and screw holes being provided along both sides of the I-shaped groove of the pedestal, studs being inserted in the screw holes, a pump body being arranged on the upper end of the pedestal, and a fixed support leg being welded at the connection between the pump body and the pedestal, the size of the fixed support leg being consistent with the size of the I-shaped groove, and an interference fit connection being formed between the fixed support leg and the I-shaped groove.

[0007] Furthermore, a rubber pad with a shock-absorbing function is embedded in the middle of the lower end of the base, and the base is erected on the factory floor through the rubber pad.

[0008] Furthermore, a motor is connected to the power input end of the pump body, and a dust cover is mounted on the outer wall of the power shaft of the motor and the pump body, and a connecting bracket for supporting balance is mounted on the side of the power shaft close to the dust cover.

[0009] Furthermore, the U-shaped groove of the connecting bracket corresponds to the screw hole of the first support, and the connecting bracket and the first support are fastened with bolts.

[0010] Furthermore, the bottom of the motor is connected to the second support, and a pair of the second support is provided.

[0011] Furthermore, a rubber gasket is bonded to the bottom of the fixed leg, and the cross-sectional size of the rubber gasket is consistent with the cross-sectional size of the fixed leg.

[0012] Furthermore, the rubber gasket fits with the bottom of the I-shaped groove, and the height of the rubber gasket plus the height of the fixed support foot is higher than the depth of the I-shaped groove.

[0013] Compared with the prior art, the beneficial effect of the utility model is that when the centrifugal pump of the shock-absorbing base is in use, the rubber pad and the base are connected in an embedded manner, and the connecting ends are fastened with screws. At the same time, the rubber pad is completely embedded in the hole groove of the base as a shock-absorbing material to seal the hole groove of the base, and the rubber pad is connected to the factory floor to achieve the needs of shock absorption and noise reduction.

[0014] The motor, dust cover and connecting bracket are all installed on the first support and the second support by splicing connection. Screw gaskets are provided at the connection to meet the power input requirements of the pump body. At the same time, this connection method also balances the possibility of gravity eccentricity of the power shaft, ensuring long-term operation of the power shaft and increasing the service life of the equipment.

[0015] The fixed leg serves as a supporting and connecting component of the pump body, and adopts an embedded connection method to fix and limit the pump body. This connection method has high connection tightness and high structural strength, which reduces the possibility of small deviations due to long-term operation of the pump body and ensures long-term stable operation of the pump body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the split structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 3 For this utility model Figure 1Schematic diagram of the local enlarged structure at point A in the middle.

[0019] In the figure: 1. base; 2. bearing platform; 21. I-shaped groove; 22. stud; 3. first support platform; 4. second support platform; 5. rubber pad; 6. pump body; 7. motor; 8. dust cover; 9. connecting bracket; 10. fixed support foot; 101. rubber gasket. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-3 The utility model provides a technical solution: a centrifugal pump with a shock-absorbing base, comprising a base 1, a support 2 and a pump body 6, the upper end of one side of the base 1 is welded with the support 2, and the middle part of the upper end of the base 1 is provided with a first support 3, and the end of the base 1 away from the support 2 is provided with a second support 4, the middle part of the support 2 is provided with an I-shaped groove 21, and the support 2 is provided with screw holes on both sides of the I-shaped groove 21, and studs 22 are inserted into the screw holes, the upper end of the support 2 is provided with a pump body 6, and the connection between the pump body 6 and the support 2 is welded with a fixed support leg 10, and the size of the fixed support leg 10 is consistent with the I-shaped groove The sizes of 21 are consistent, and there is an interference connection between the fixed support leg 10 and the I-shaped groove 21. A rubber pad 5 with a shock-absorbing function is embedded in the middle of the lower end of the base 1, and the base 1 is erected on the factory floor through the rubber pad 5. The rubber pad 5 and the base 1 are connected in an embedded manner, and the connecting ends are fastened with screws. At the same time, the rubber pad 5 is completely embedded in the hole groove of the base 1 as a shock-absorbing material to seal the hole groove of the base 1. In order to meet the shock-absorbing requirements, the base 1 is erected on the factory floor, and the rubber pad 5 is connected to the factory floor to achieve the requirements of shock absorption and noise reduction.

[0022] The power input end of the pump body 6 is connected to a motor 7, and a dust cover 8 is mounted on the outer wall of the power shaft of the motor 7 and the pump body 6. A supporting and balancing connecting bracket 9 is mounted on the side of the power shaft close to the dust cover 8. The U-shaped groove of the connecting bracket 9 corresponds to the screw hole of the first support 3, and the connecting bracket 9 and the first support 3 are fastened with bolts. The bottom of the motor 7 is connected to the second support 4, and the second support 4 is provided with a pair. The motor 7, dust cover 8 and connecting bracket 9 are all installed on the first support 3 and the second support 4 in a splicing connection manner. Screw gaskets are provided at the connection to meet the power input requirements of the pump body 6. At the same time, this connection method also balances the possibility of gravity eccentricity of the power shaft, ensures long-term operation of the power shaft, and improves the service life of the equipment.

[0023] A rubber gasket 101 is bonded to the bottom of the fixed foot 10, and the cross-sectional size of the rubber gasket 101 is consistent with the cross-sectional size of the fixed foot 10, the rubber gasket 101 fits the bottom of the I-shaped groove 21, and the height of the rubber gasket 101 plus the height of the fixed foot 10 is higher than the depth of the I-shaped groove 21. The fixed foot 10 serves as a supporting and connecting component of the pump body 6, and adopts an embedded connection method to fix and limit the pump body 6. This connection method has high tightness at the connection and high structural strength, which reduces the possibility of small deviations due to long-term operation of the pump body 6 and ensures the long-term stable operation of the pump body 6. At the same time, a rubber gasket 101 is arranged at the bottom of the fixed foot 10. The vibration absorption of the rubber gasket 101 can further ensure the long-term stable operation of the pump body 6, and screw holes are opened on both sides of the I-shaped groove 21. The fixed foot 10 and the I-shaped groove 21 are fixedly connected through corresponding studs 22 to ensure the rationality of the overall structure.

[0024] Working principle: For this type of centrifugal pump with a shock-absorbing base, the pump body 6 and the transmission shaft of the motor 7 are first connected. A dust cover 8 and a connecting bracket 9 are set up at the connection for protection. At this time, the pump body 6 and the motor 7 as well as the bottom of the dust cover 8 and the connecting bracket 9 are aligned with the base 2, the first support 3 and the second support 4. The connection is fixed by bolt tightening. At the same time, when connecting the fixed support leg 10 and the base 2, it is necessary to align the rubber gasket 101 with the I-shaped groove 21 and insert it. The fixed support leg 10 is vertically placed in the quasi-I-shaped groove 21, and then the studs 22 on both sides are tightened to achieve a fixed connection between the fixed support leg 10 and the I-shaped groove 21. Finally, the motor 7 is started, and the transmission shaft of the motor 7 drives the pump body 6 to rotate at high speed. The impeller and water are driven to rotate at high speed through the pump shaft. The water undergoes centrifugal motion and is thrown to the outer edge of the impeller and flows into the water pressure pipeline of the water pump through the flow channel of the volute pump casing.

Claims

1. A centrifugal pump with a shock-absorbing base, comprising a base (1), a support (2) and a pump body (6), characterized in that: A support platform (2) is welded to the upper end of one side of the base (1), and a first support platform (3) is mounted in the middle of the upper end of the base (1). A second support platform (4) is installed at the end of the base (1) away from the support platform (2). An I-shaped groove (21) is opened in the middle of the support platform (2), and screw holes are opened on both sides of the I-shaped groove (21) of the support platform (2), and studs (22) are inserted into the screw holes. A pump body (6) is mounted on the upper end of the support platform (2), and a fixed support leg (10) is welded at the connection between the pump body (6) and the support platform (2), the size of the fixed support leg (10) is consistent with the size of the I-shaped groove (21), and the fixed support leg (10) and the I-shaped groove (21) are interference-connected.

2. A centrifugal pump with a shock-absorbing base according to claim 1, characterized in that: A rubber pad (5) with a shock-absorbing function is embedded in the middle of the lower end of the base (1), and the base (1) is erected on the factory floor via the rubber pad (5).

3. A centrifugal pump with a shock-absorbing base according to claim 1, characterized in that: The power input end of the pump body (6) is connected to a motor (7), and a dust cover (8) is mounted on the outer wall of the power shaft of the motor (7) and the pump body (6), and a connecting bracket (9) for supporting balance is mounted on the side of the power shaft close to the dust cover (8).

4. A centrifugal pump with a shock-absorbing base according to claim 3, characterized in that: The U-shaped groove of the connecting bracket (9) corresponds to the screw hole of the first support platform (3), and the connecting bracket (9) and the first support platform (3) are fastened by bolts.

5. A centrifugal pump with a shock-absorbing base according to claim 3, characterized in that: The bottom of the motor (7) is connected to the second support (4), and a pair of the second support (4) is provided.

6. A centrifugal pump with a shock-absorbing base according to claim 1, characterized in that: A rubber gasket (101) is bonded to the bottom of the fixed support leg (10), and the cross-sectional dimensions of the rubber gasket (101) are consistent with the cross-sectional dimensions of the fixed support leg (10).

7. A centrifugal pump with a shock-absorbing base according to claim 6, characterized in that: The rubber gasket (101) fits the bottom of the I-shaped groove (21), and the height of the rubber gasket (101) plus the height of the fixed support foot (10) is greater than the depth of the I-shaped groove (21).

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