Mounting base and centrifugal pump

Abstract

The mounting base comprises a base body and further comprises a first bottom table, the first bottom table is arranged on one side of the top end of the base body, and a third bottom table is arranged at the end, away from the first bottom table, of the top end of the base body; the vibration reduction fixing device is arranged at the top end of the first bottom table, the vibration reduction fixing device further comprises a damping block, a sliding rail, a fixing bolt and a centrifugal pump body, the centrifugal pump body is arranged at the top end of the first bottom table and the top end of the third bottom table, and the centrifugal pump body further comprises a volute, a motor and a pump shaft. A centrifugal pump is installed through the first bottom table, the second bottom table and the third bottom table, the installation position of a fixing bolt and a volute can be freely adjusted through a sliding rail of the vibration reduction fixing device, centrifugal pumps with different lengths can be conveniently installed, vibration is weakened and counteracted through a damping block, the stability of the base body is guaranteed, and the service life of the base body is prolonged. And the centrifugal pump can stably realize water pumping work.

Description

Technical Field

[0001] The utility model relates to the technical field of centrifugal pump vibration prevention, in particular to a mounting base and a centrifugal pump. Background Art

[0002] A centrifugal pump is mainly composed of an impeller, a pump body, a pump shaft, bearings, sealing rings and a stuffing box. The working principle of a centrifugal pump is that the impeller is driven to rotate by the pump shaft, doing work on the fluid between the blades. The fluid is centrifugally acted upon and thrown from the center of the impeller to the periphery.

[0003] At present, due to the different designs of conventional centrifugal pumps, the layout of the volute and motor of each rational pump will also be different, and the position of their installation on the base will also be different, resulting in the screw holes at the bottom not matching the base when the centrifugal pump is installed on the base. At the same time, the motor will vibrate when working, and the vibration will drive the volute to vibrate, resulting in the connection between the pump shaft and the motor being eccentric, causing friction between the pump shaft and the bearing, and also making the impeller unbalanced when vibrating, causing friction between the impeller and the volute, affecting the normal operation of the centrifugal pump. For this purpose, a mounting base and a centrifugal pump are designed. Utility Model Content

[0004] The purpose of the present utility model is to provide a mounting base and a centrifugal pump to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a mounting base and a centrifugal pump, comprising a base body, and further comprising:

[0006] A first base is provided on one side of the top of the base body, and a third base is provided on the top of the base body and at one end away from the first base;

[0007] A vibration-damping fixing device is arranged at the top of the first base, and the vibration-damping fixing device also includes a damping block and a slide rail. Multiple damping blocks are fixedly connected to the top of the first base, and multiple slide rails are arranged in the middle of the top of multiple damping blocks.

[0008] Preferably, a plurality of sliders are slidably provided at the top ends of the plurality of slide rails.

[0009] Preferably, a plurality of fixing bolts are provided on the top ends of the plurality of sliding blocks, and a plurality of fixing nuts are threadedly connected to the threaded ends of the plurality of fixing bolts.

[0010] A centrifugal pump adopts the above-mentioned mounting base and comprises a volute, a motor and a pump shaft. An end of the volute close to the motor is rotatably connected to an end of the pump shaft away from the motor.

[0011] Preferably, a fixing leg is provided at the bottom end of the volute, and the bottom end of the fixing leg is interlacedly connected with the outer wall of a plurality of fixing bolts.

[0012] Preferably, a bearing box is sleeved on the middle section of the outer wall of the pump shaft, a shaft bracket is provided at the bottom end of the bearing box, the bottom end of the shaft bracket is fixedly connected to a second base, and the bottom end of the second base is fixedly connected to the middle part of the top end of the base body.

[0013] Preferably, a bearing box is sleeved on the middle section of the outer wall of the pump shaft, a shaft bracket is provided at the bottom end of the bearing box, the bottom end of the shaft bracket is fixedly connected to a second base, and the bottom end of the second base is fixedly connected to the middle part of the top end of the base body.

[0014] Preferably, the side of the coupling away from the motor is rotationally connected to the side of the pump shaft close to the motor, and a plurality of damping plates are provided at the bottom end of the motor, and the bottom ends of the damping plates are fixedly connected to the bottom end of the third base.

[0015] The technical effects and advantages of this utility model are:

[0016] The utility model utilizes the first base, the second base and the third base to install the centrifugal pump. The bottom end of the first base is provided with a vibration-damping fixing device. The slide rail of the vibration-damping fixing device can freely adjust the installation position of the fixing bolt and the volute, which is convenient for installing centrifugal pumps of different lengths. At the same time, the slide rail is arranged on the inner wall of the damping block. When the volute is working, the damping block will reduce and offset the vibration to ensure the stability of the base body, so that the centrifugal pump can stably realize the pumping operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the main structure of the utility model.

[0018] Figure 2 It is a side view of the main structure of the utility model.

[0019] Figure 3 This is a structural diagram of the vibration reduction and fixing device of the utility model.

[0020] Figure 4 This is a side view of the vibration reduction and fixing device structure of the utility model.

[0021] Figure 5 This is a top view of the vibration reduction and fixing device structure of the utility model.

[0022] In the figure: 1. Base body; 101. First base; 102. Second base; 103. Third base; 2. Damping block; 201. Slide rail; 202. Slider; 203. Fixing bolt; 204. Fixing nut; 3. Volute; 301. Bearing box; 302. Coupling; 303. Protective cover; 304. Motor; 305. Pump shaft; 4. Fixed support leg; 401. Shaft bracket; 402. Damping plate. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] The utility model provides Figure 1-5 The mounting base and centrifugal pump shown include a base body 1 and further include:

[0025] A first base 101 is provided at one side of the top of the base body 1 , and a third base 103 is provided at the top of the base body 1 and at one end away from the first base 101 ;

[0026] The vibration-damping fixing device is arranged at the top of the first base 101. The vibration-damping fixing device also includes a damping block 2 and a slide rail 201. Multiple damping blocks 2 are fixedly connected to the top of the first base 101, and multiple slide rails 201 are arranged in the middle of the top of the multiple damping blocks 2.

[0027] It should be noted that the first base 101 and the third base 103 are arranged at the bottom end of the base body 1. The positions of the first base 101 and the third base 103 correspond to the positions of the volute 3 and the motor 304 of the centrifugal pump. The vibration reduction fixing device at the top of the first base 101 can realize the installation and vibration reduction of the volute 3. The vibration fixing device also includes: a damping block 2, a slide rail 201 and a fixing bolt 203.

[0028] Specifically, a plurality of sliders 202 are slidably provided on the top ends of the plurality of slide rails 201 , a plurality of fixing bolts 203 are provided on the top ends of the plurality of sliders 202 , and a plurality of fixing nuts 204 are threadedly connected to the threaded ends of the plurality of fixing bolts 203 .

[0029] It should be noted that the damping blocks 2 are symmetrically arranged on both sides of the top of the first base 101 and correspond to the connection positions of the fixed legs 4. The damping blocks 2 are made of polymer rubber material with stable physical and chemical properties, excellent vibration and noise reduction, heat resistance, cold resistance, anti-aging and strong adhesion. Slots are provided on the inner wall of the damping block 2, and the slide rails 201 are installed using the slots. Multiple sliders 202 are installed in the slide rails 201. The sliders 202 can drive the fixing bolts 203 to move on the slide rails 201, so that the position of the volute 3 can be freely installed.

[0030] A centrifugal pump adopts the above-mentioned mounting base, comprising a volute 3, a motor 304 and a pump shaft 305. An end of the volute 3 close to the motor 304 is rotatably connected to an end of the pump shaft 305 away from the motor 304.

[0031] It should be noted that the centrifugal pump body refers to the centrifugal pump model IHF. The volute 3 is connected to the fixing bolt 203 through the fixing leg 4. There are multiple screw holes at the bottom end of the fixing leg 4. The screw holes are aligned with the fixing bolt 203 and inserted into the connection. Finally, the fixing nut 204 is threadedly connected to the bottom end of the fixing bolt 203 to fix the leg 4.

[0032] Specifically, a bearing box 301 is provided on the middle section of the outer wall of the pump shaft 305, and a shaft bracket 401 is provided at the bottom end of the bearing box 301. The bottom end of the shaft bracket 401 is fixedly connected to the second base 102, and the bottom end of the second base 102 is fixedly connected to the middle part of the top of the base body 1. The bottom end of the motor 304 is fixedly connected to the top of the third base 103. The end of the motor 304 close to the volute 3 is rotatably connected to the coupling 302. The outer wall of the coupling 302 is provided with a protective cover 303. The bottom end of the protective cover 303 is fixedly connected to the top of the base body 1 and one end close to the third base 103.

[0033] It should be noted that the volute 3 is connected to the first base 101 through the fixed legs 4. The volute 3, bearing box 301, shaft bracket 401 and motor 304 all refer to the integral components of a centrifugal pump of model IHF. When the motor 304 is started, the torque will be transmitted to the pump shaft 305 through the coupling 302. The pump shaft 305 will rotate inside the volute 3 under the fixed guidance of the bearing box 301 and the shaft bracket 401. A stirring blade is provided inside the volute 3, and the pump shaft 305 will drive the stirring blade to rotate. At the same time, the volute 3 will vibrate due to the rotation, and the vibration will be transmitted to the damping block 2 through the fixed legs 4. The damping block 2 will filter and eliminate the vibration with the help of its own material.

[0034] Specifically, the side of the coupling 302 away from the motor 304 is rotationally connected to the side of the pump shaft 305 close to the motor 304. A plurality of damping plates 402 are provided at the bottom end of the motor 304. The bottom end of the damping plate 402 is fixedly connected to the bottom end of the third base 103.

[0035] It should be noted that the outer ring of the coupling 302 is provided with a protective cover 303 which can fix the position of the coupling 302 so that the coupling 302 and the pump shaft 305 remain on the same horizontal line, and at the same time protect the coupling 302 from external damage. A damping plate 402 is provided at the connection between the motor 304 and the third base 103, which is made of rubber to alleviate the vibration generated by the operation of the motor 304.

[0036] Working principle of this utility model:

[0037] The specific operation is that first, the slider 202 needs to be moved along the slide rail 201 to drive the fixing bolt 203 to slide to the position corresponding to the fixed leg 4, and then the fixed leg 4 at the bottom end of the volute 3 is inserted through the fixing bolt 203, and then the fixing bolt 203 is threadedly connected through the fixing nut 204 to fix the fixed leg 4 on the top of the first base 101, and at the same time, the bearing box 301 and the motor 304 are fixed to the top of the second base 102 and the third base 103, and the motor 304 is started. The motor 304 rotates the pump shaft 305 through the coupling 302. The rotation of the pump shaft 305 will drive the volute 3 to vibrate, and the vibration will be transmitted to the damping block 2 through the fixed leg 4. The damping block 2 will use its polymer material to filter the vibration and reduce the vibration.

[0038] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A mounting base, comprising a base body (1), characterized in that: Also includes: A first base (101), the first base (101) being arranged on one side of the top end of the base body (1), and a third base (103) being arranged at the top end of the base body (1) and at an end away from the first base (101); A vibration-damping fixing device is provided at the top end of a first base (101), and further comprises a damping block (2) and a slide rail (201). A plurality of the damping blocks (2) are fixedly connected to the top end of the first base (101), and a plurality of the slide rails (201) are provided at the middle portion of the top end of the plurality of damping blocks (2).

2. The mounting base according to claim 1, wherein: A plurality of sliders (202) are slidably provided at the top ends of the plurality of slide rails (201).

3. The mounting base according to claim 2, wherein: A plurality of fixing bolts (203) are provided at the top ends of the plurality of sliding blocks (202), and a plurality of fixing nuts (204) are threadedly connected to the threaded ends of the plurality of fixing bolts (203).

4. A centrifugal pump, comprising the mounting base according to any one of claims 1 to 3, characterized in that: It comprises a volute (3), a motor (304) and a pump shaft (305), wherein one end of the volute (3) close to the motor (304) is rotatably connected to one end of the pump shaft (305) away from the motor (304).

5. A centrifugal pump according to claim 4, characterized in that: The bottom end of the volute (3) is provided with a fixed leg (4), and the bottom end of the fixed leg (4) is interlacedly connected with the outer wall of a plurality of fixing bolts (203).

6. A centrifugal pump according to claim 4, characterized in that: A bearing box (301) is sleeved on the middle section of the outer wall of the pump shaft (305); a shaft bracket (401) is provided at the bottom end of the bearing box (301); the bottom end of the shaft bracket (401) is fixedly connected to a second base (102); and the bottom end of the second base (102) is fixedly connected to the middle part of the top end of the base body (1).

7. A centrifugal pump according to claim 4, characterized in that: The bottom end of the motor (304) is fixedly connected to the top end of the third base (103); the end of the motor (304) close to the volute (3) is rotatably connected to a coupling (302); the outer wall of the coupling (302) is provided with a protective cover (303); the bottom end of the protective cover (303) is fixedly connected to the top end of the base body (1) and one end close to the third base (103).

8. A centrifugal pump according to claim 7, characterized in that: The side of the coupling (302) away from the motor (304) is rotatably connected to the side of the pump shaft (305) close to the motor (304); a plurality of damping plates (402) are provided at the bottom end of the motor (304); and the bottom ends of the damping plates (402) are fixedly connected to the bottom end of the third base (103).

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