Vibration isolation mechanism for centrifugal pump and centrifugal pump

Abstract

The vibration isolation mechanism comprises a vibration isolator and a positioning mechanism, the vibration isolator is used for isolating vibration on the ground, the positioning mechanism comprises a positioning assembly and a driving assembly, the positioning assembly comprises a clamping plate, a moving part and a supporting plate are arranged at the bottom end of the clamping plate, and the driving assembly is used for driving the clamping plate to move. The supporting plate is used for installing the positioning mechanism and arranged at the top end of the vibration isolator. By means of the design of the vibration isolator, the supporting plate, the mounting bolt and the positioning mechanism, when the pump body is mounted, the pump body is lifted firstly, then the vibration isolator and the mounting frame are fixedly connected through the mounting bolt, at the moment, a rotary knob is rotated, a movable plate drives a clamping plate to be close to the side of the mounting frame, and then the pump body is mounted. When the pump body is placed on the ground, the vibration isolators are positioned under the clamping action of the clamping plate on the mounting frame, so that after the pump body is placed on the ground, the vibration isolators do not rotate or displace, and the multiple vibration isolators are kept to be placed in order.

Description

Technical Field

[0001] The utility model relates to the technical field of centrifugal pumps, in particular to a vibration isolation mechanism for a centrifugal pump and a centrifugal pump. Background Art

[0002] When the centrifugal pump is in use, the ground will vibrate due to external factors, which will be transmitted to the inside of the centrifugal pump, thereby affecting the operation of the centrifugal pump and affecting the service life of the pump. Therefore, a vibration isolator will be installed at the bottom of the centrifugal pump to reduce the transmission of ground vibration. When installing the vibration isolator, two methods are usually used to ensure that the vibration isolator is installed neatly. The first is to fix multiple vibration isolators on the ground to ensure that the vibration isolators are installed neatly, and then place the centrifugal pump on the top of multiple vibration isolators. However, this installation method will cause the mounting holes of the centrifugal pump frame and the position of the vibration isolator to deviate, thereby requiring the disassembly and displacement of the vibration isolator, increasing the installation workload. The second is to first lift the centrifugal pump, install multiple vibration isolators on the bottom of the centrifugal pump frame respectively, and then place the centrifugal pump on the ground. At this time, the position of the vibration isolator is adjusted, but the gravity of the centrifugal pump is completely pressed on the vibration isolator, which makes it inconvenient to adjust and rotate the vibration isolator. Utility Model Content

[0003] The purpose of the present utility model is to provide a vibration isolation mechanism for a centrifugal pump and a centrifugal pump, so as to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned object, the present invention provides the following technical solution: a vibration isolation mechanism for a centrifugal pump, comprising a vibration isolator for isolating ground vibration, and further comprising:

[0005] A positioning mechanism, comprising a positioning assembly and a driving assembly, wherein the positioning assembly comprises a clamping plate, and a moving member for connecting to the driving assembly is provided at the bottom end of the clamping plate;

[0006] A support plate is used for installing the positioning mechanism and is arranged on the top of the vibration isolator.

[0007] Preferably, the top end of the vibration isolator is fixedly connected to the bottom end of the support plate, and the movable member includes a movable plate, and the top end of the movable plate is fixedly connected to the bottom end of the clamping plate.

[0008] Preferably, a guide groove for the movement of the movable plate is provided on the top of the support plate, and the movable plate is slidably connected with the guide groove.

[0009] Preferably, the vertical cross-sections of the movable plate and the guide groove are both in an inverted T-shape, the top end of the guide groove and the top end of the support plate are interconnected, and the clamping plate is arranged at the top end of the support plate.

[0010] Preferably, the driving assembly includes a driving rod, a thread groove is provided on one side of the movable plate, and the driving rod is threadably connected to the thread groove.

[0011] Preferably, one end of the driving rod is fixedly connected to a knob for hand holding, the outer wall of the other end of the knob is sleeved with a bearing, and one side of the inner wall of the guide groove is provided with a circular groove for inserting the driving rod.

[0012] A centrifugal pump includes the above-mentioned vibration isolation mechanism, the centrifugal pump includes a pump body, the outer wall of the pump body is provided with a mounting bracket for installing the pump body, the mounting bracket is arranged at the top end of the support plate, and the top end of the support plate is provided with mounting bolts for fixed connection with the mounting bracket.

[0013] The technical effects and advantages of this utility model are:

[0014] The utility model utilizes the design of the vibration isolator, the support plate, the mounting bolts and the positioning mechanism. When installing the pump body, the pump body is first lifted, and then the vibration isolator is fixedly connected to the mounting frame by the mounting bolts. At this time, by turning the knob, the movable plate drives the clamping plate to approach the side of the mounting frame, so that the vibration isolator is positioned under the action of the clamping plate clamping the mounting frame. Therefore, after the pump body is placed on the ground, the vibration isolator will not rotate or displace, so that multiple vibration isolators can be kept neatly arranged. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model.

[0016] Figure 2 This is a schematic diagram of the three-dimensional structure of the vibration isolator and positioning mechanism of the utility model.

[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of the vibration isolator and positioning mechanism of the utility model.

[0018] Figure 4 For this utility model Figure 3 A is a schematic diagram of the enlarged structure.

[0019] Figure 5 This is a schematic diagram of the three-dimensional structure of the positioning component of the utility model.

[0020] In the figure: 1. Vibration isolator; 2. Support plate; 3. Mounting bolt; 4. Positioning mechanism; 41. Clamping plate; 42. Moving plate; 43. Driving rod; 44. Knob; 45. Bearing; 5. Pump body; 6. Mounting frame. DETAILED DESCRIPTION

[0021] 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.

[0022] The utility model provides Figure 1-5 The vibration isolation mechanism for a centrifugal pump shown includes a vibration isolator 1 for isolating ground vibration, and further includes:

[0023] The positioning mechanism 4 includes a positioning assembly and a driving assembly. The positioning assembly includes a clamping plate 41. The bottom end of the clamping plate 41 is provided with a moving part for connecting with the driving assembly.

[0024] The support plate 2 is used for installing the positioning mechanism 4 , and the support plate 2 is arranged on the top of the vibration isolator 1 .

[0025] Specifically, the top end of the vibration isolator 1 is fixedly connected to the bottom end of the support plate 2 .

[0026] Furthermore, the vibration isolator 1, the support plate 2 and the mounting bolts 3 constitute an existing ZTE type adjustable low-frequency damping spring vibration isolator.

[0027] Specifically, the moving part includes a moving plate 42, the top of the moving plate 42 is fixedly connected to the bottom end of the clamping plate 41, and a guide groove for moving the moving plate 42 is provided on the top of the support plate 2. The moving plate 42 is slidably and interlacedly connected with the guide groove. The vertical cross-sections of the moving plate 42 and the guide groove are both inverted T-shaped, and the top of the guide groove and the top of the support plate 2 are interconnected. The clamping plate 41 is arranged at the top of the support plate 2. The driving assembly includes a driving rod 43, and a threaded groove is provided on one side of the moving plate 42. The driving rod 43 is threadedly interlaced with the threaded groove. One end of the driving rod 43 is fixedly connected to a knob 44 for hand holding, and the outer wall of the other end of the knob 44 is provided with a bearing 45. A circular groove for inserting the driving rod 43 is provided on one side of the inner wall of the guide groove.

[0028] Furthermore, the positioning mechanism 4 is provided with two groups, which are symmetrically arranged on both sides of the top of the support plate 2. The size of the movable plate 42 is 0.98 times the size of the guide groove. The clamping plate 41 and the movable plate 42 are cast in one piece. The threads on the inner wall of the threaded groove are engaged with the threads on the outer wall of the driving rod 43. The inner wall of the circular groove is a smooth inner wall. The diameter of the circular groove is 1.1 times the diameter of the driving rod 43. The contact part between the driving rod 43 and the knob 44 is fixed by bonding. The bearing 45 is an existing ball bearing. The inner ring of the bearing 45 is The outer wall of the driving rod 43 is fixed by welding, and the outer ring of the bearing 45 is fixed to the inner wall of the guide groove by welding, so that by turning the knob 44, the knob 44 drives the driving rod 43 to rotate, and the driving rod 43, under the action of mutual meshing of the threads, causes the movable plate 42 to drive the clamping plate 41 to move toward the mounting bracket 6, so that by turning the knobs 44 on both sides of the top of the support plate 2, the two clamping plates 41 move toward each other, thereby clamping the two sides of the mounting bracket 6, so that the position of the support plate 2 cannot be changed.

[0029] A centrifugal pump includes the above-mentioned vibration isolation mechanism, the centrifugal pump includes a pump body 5, the outer wall of the pump body 5 is provided with a mounting bracket 6 for installing the pump body 5, the mounting bracket 6 is arranged at the top end of the support plate 2, and the top end of the support plate 2 is provided with a mounting bolt 3 for fixedly connecting with the mounting bracket 6.

[0030] Furthermore, the top of the mounting bracket 6 is fixed to the outer wall of the pump body 5 by bolts or welding, and the bottom end of the mounting bracket 6 is provided with a mounting hole for inserting the mounting bolt 3, and the outer wall of the mounting bolt 3 is threaded with a nut, so that the support plate 2 and the mounting bracket 6 are fixedly connected, and the mounting bolt 3 is inserted into the mounting hole. At this time, by turning the knob 44, the clamping plate 41 clamps the mounting bracket 6, and then the mounting bolt 3 is fixedly connected to the mounting bracket 6 by the nut. At this time, the vibration isolator 1 is placed on the ground, and the multiple vibration isolators 1 at the bottom end of the mounting bracket 6 will be arranged neatly without being skewed.

[0031] 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 vibration isolation mechanism for a centrifugal pump, comprising a vibration isolator (1), wherein the vibration isolator (1) is used to isolate ground vibration, and is characterized in that: Also includes: A positioning mechanism (4), the positioning mechanism (4) comprising a positioning assembly and a driving assembly, the positioning assembly comprising a clamping plate (41), the bottom end of the clamping plate (41) being provided with a moving part for connecting with the driving assembly; A support plate (2) is used for installing a positioning mechanism (4), and the support plate (2) is arranged on the top end of the vibration isolator (1).

2. A vibration isolation mechanism for a centrifugal pump according to claim 1, characterized in that: The top end of the vibration isolator (1) is fixedly connected to the bottom end of the support plate (2); the movable member comprises a movable plate (42); and the top end of the movable plate (42) is fixedly connected to the bottom end of the clamping plate (41).

3. A vibration isolation mechanism for a centrifugal pump according to claim 2, characterized in that: A guide groove for the movement of the movable plate (42) is provided on the top of the support plate (2), and the movable plate (42) is connected to the guide groove in a sliding manner.

4. A vibration isolation mechanism for a centrifugal pump according to claim 3, characterized in that: The vertical cross-sections of the movable plate (42) and the guide groove are both in an inverted T-shape, the top end of the guide groove and the top end of the support plate (2) are interconnected, and the clamping plate (41) is arranged at the top end of the support plate (2).

5. The vibration isolation mechanism for a centrifugal pump according to claim 3, characterized in that: The driving assembly comprises a driving rod (43); a thread groove is provided on one side of the movable plate (42); and the driving rod (43) is threadably connected to the thread groove.

6. A vibration isolation mechanism for a centrifugal pump according to claim 5, characterized in that: One end of the driving rod (43) is fixedly connected to a knob (44) for hand gripping, the outer wall of the other end of the knob (44) is sleeved with a bearing (45), and one side of the inner wall of the guide groove is provided with a circular groove for inserting the driving rod (43).

7. A centrifugal pump, comprising the vibration isolation mechanism according to any one of claims 1 to 6, characterized in that: The centrifugal pump comprises a pump body (5), an outer wall of the pump body (5) is provided with a mounting frame (6) for mounting the pump body (5), the mounting frame (6) is arranged at the top end of a support plate (2), and the top end of the support plate (2) is provided with mounting bolts (3) for fixed connection with the mounting frame (6).

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