Deviation correcting device for preventing water pump from dry rotation

Abstract

The utility model discloses an offset correction device for preventing water pump dry transition, which relates to the technical field of water pumps, and comprises a support and a water pump, the bottom of the support is connected with a base, the front and rear side surfaces of the water pump are provided with deviation correction mechanisms, the base is provided with a support spring for supporting the water pump, the bottom of the water pump is provided with a deviation correction ball group, and the water pump is arranged on a cantilever. Vibration generated by dry rotation of the water pump is initially reduced through the deviation rectifying mechanism, the deviation rectifying mechanism returns to the initial position under the action of the hydraulic telescopic rod, the supporting spring can absorb part of vertical impulse of the water pump, vibration of the water pump is reduced, and the deviation rectifying ball set and the water pump form a structure similar to a tumbler, so that balls which deviate in the circumferential direction deviate from the initial position to be rectified and return to the initial position.

Description

Technical Field

[0001] The utility model relates to the technical field of water pumps, in particular to an offset correction device for preventing a water pump from dry running. Background Technique

[0002] A water pump is a machine for transporting liquids or increasing the pressure of liquids. It is a rotating mechanical device that, driven by a certain power, converts mechanical energy into liquid energy, increases the energy of the liquid, and transports the liquid to the required place. It is mainly used to transport liquids including water, oil, acid-base liquids, emulsions, suspension liquids, and liquid metals. Reasonable use of water pumps can improve the working efficiency of water pumps and extend the service life of water pumps.

[0003] Generally, water pumps are fixed on brackets by bolts, and the water pumps are inserted into water through the brackets. During the use of the water pumps, due to the drop of the water level or blockage, the water pumps may dry run. Although there are cut-off measures to prevent dry running in the prior art, they cannot be instantaneously cut off in a short time when it occurs, which will also cause air to enter. The lack of water in the water pump is the main reason for the dry running of the water pump. If the water pump dry runs, it will cause air to enter, and the air will cause cavitation, which will damage the pump housing and impeller, causing large vertical up-and-down vibrations of the water pump. The large vibrations caused by the dry running of the water pump are extremely likely to drive the bracket to shift and collide, resulting in production accidents. Content of the Utility Model

[0004] In order to overcome the defect in the prior art that the bracket shifts and collides due to the dry running of the water pump, the utility model provides an offset correction device for preventing the water pump from dry running.

[0005] The technical solution adopted by the utility model to solve its technical problems is: an offset correction device for preventing a water pump from dry running, including a bracket and a water pump. A base is connected to the bottom of the bracket. Deviation correction mechanisms are arranged on both the front and rear sides of the water pump. The deviation correction mechanism includes a fixed seat installed on the right side of the bracket. An upper part of the right side of the fixed seat is fixed with a support frame. One end of the support frame is fixed on the fixed seat, and the other end of the support frame is hinged with a cantilever. A lower part of the right side of the fixed seat is hinged with a hydraulic telescopic rod. One end of the hydraulic telescopic rod is hinged to the fixed seat, and the other end of the hydraulic telescopic rod is hinged to the middle of the cantilever. A locking bolt for fixing the water pump is arranged at the end of the cantilever. A support spring for supporting the water pump is arranged on the base, and a deviation correction ball group is arranged at the bottom of the water pump.

[0006] As a further improvement of the utility model, a fixing bolt is arranged on the left side of the fixed seat, and a threaded hole for cooperating with the fixing bolt is arranged on the bracket.

[0007] As a further improvement of the utility model, the deviation correction ball group includes a bearing and a sphere rotatably connected in the bearing.

[0008] As a further improvement of the present utility model, the bearing is fixed at the bottom of the water pump. A groove is provided at the bottom of the water pump. The upper half of the sphere is located in the groove, and the lower half of the sphere is located in the support spring.

[0009] As a further improvement of the present utility model, a groove for cooperating with the fixing seat is provided on the bracket.

[0010] Compared with the prior art, the present utility model has the following beneficial effects: In this solution, the water pump is arranged on the cantilever. The deviation correction mechanism initially reduces the tremor generated by the dry running of the water pump, and returns to the initial position under the action of the hydraulic telescopic rod. The support spring can absorb part of the vertical impulse of the water pump, reduce the tremor of the water pump. The deviation correction ball group and the water pump form a structure similar to that of a tumbler, so that the circumferentially offset sphere is corrected and returns to the initial position, reducing the large tremor generated by the dry running of the water pump and reducing the probability of the bracket offset collision. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The following further describes the present utility model in conjunction with the drawings and specific embodiments.

[0012] Figure 1 It is a schematic structural diagram of a deviation correction device for preventing dry running of a water pump according to the present utility model.

[0013] Figure 2 It is a schematic structural diagram of the deviation correction mechanism of the present utility model.

[0014] Figure 3 It is a schematic structural diagram of the deviation correction ball group of the present utility model.

[0015] In the figure: 1. Water pump; 2. Bracket; 3. Base; 4. Deviation correction mechanism; 41. Fixing seat; 42. Support frame; 43. Cantilever; 44. Hydraulic telescopic rod; 45. Locking bolt; 46. Fixing bolt; 5. Support spring; 6. Deviation correction ball group; 61. Bearing; 62. Sphere. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] In order to make the technical solutions and beneficial effects of the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to specific embodiments.

[0017] Refer to Figure 1 , the embodiment of the present utility model discloses a deviation correction device for preventing dry running of a water pump, including a bracket 1 and a water pump 2. The bottom of the bracket 1 is connected with a base 3. Deviation correction mechanisms 4 are provided on the front and rear sides of the water pump 2. A support spring 5 for supporting the water pump 2 is provided on the base 3. A deviation correction ball group 6 is provided at the bottom of the water pump 2.

[0018] Refer to Figure 1 and Figure 2, deviation rectifying mechanisms 4 are provided on both the front and rear sides of the water pump 2. The deviation rectifying mechanism 4 includes a fixed seat 41 installed on the right side of the bracket 1. There is a groove on the bracket 1 that cooperates with the fixed seat 41. An upper part of the right side of the fixed seat 41 is fixedly provided with a support frame 42. One end of the support frame 42 is fixed to the fixed seat 41, and the other end of the support frame 42 is hinged with a cantilever 43. A lower part of the right side of the fixed seat 41 is hinged with a hydraulic telescopic rod 44. One end of the hydraulic telescopic rod 44 is hinged to the fixed seat 41, and the other end of the hydraulic telescopic rod 44 is hinged to the middle of the cantilever 43. A locking bolt 45 for fixing the water pump 2 is provided at the end of the cantilever 43. A fixing bolt 46 is provided on the left side of the fixed seat 41, and there is a threaded hole on the bracket 1 that cooperates with the fixing bolt 46. The water pump 2 is fixed to the bracket 1 through two sets of front and rear deviation rectifying mechanisms 4. When the water pump undergoes dry running and causes large vibrations, the hydraulic telescopic rod 44 provides a certain buffer support for the cantilever 43, reducing the vertical impulse on the one hand and enabling the water pump 2 to return to its initial position, thereby improving stability.

[0019] Refer to Figure 1 and Figure 3 , a deviation rectifying ball group 6 is provided at the bottom of the water pump 2. The deviation rectifying ball group 6 includes a bearing 61 and a sphere 62 rotatably connected in the bearing 61. The bearing 61 is fixed to the bottom of the water pump 2. There is a groove at the bottom of the water pump 2. The upper half of the sphere 62 is located in the groove, and the lower half of the sphere 62 is located in the support spring 5. When the water pump undergoes dry running and causes large vibrations and offsets occur, the sphere 62 will rotate in the bearing 61. The deviation rectifying ball group 6 and the water pump 2 form a structure similar to a tumbler, enabling the circumferentially offset sphere 62 to return to its initial position.

[0020] When the water pump undergoes dry running and causes large vibrations, a support spring 5 for supporting the water pump 2 is provided on the base 3. The support spring 5 can absorb part of the vertical impulse of the water pump 2, reduce the vibrations of the water pump 2, and enable the water pump 2 to return to its initial position, thereby improving stability.

[0021] It should be understood that the specific embodiments described herein are only for understanding the present invention and are not used to limit the present invention. All other embodiments obtained by those skilled in the art without creative efforts fall within the scope of protection of the present invention.

Claims

1. A deflection correction device for preventing a water pump from running dry, comprising a bracket (1) and a water pump (2), characterized in that: The bottom of the bracket (1) is connected to a base (3), and the front and rear sides of the water pump (2) are both provided with a correction mechanism (4), the correction mechanism (4) comprising a fixing seat (41) mounted on the right side of the bracket (1), a support frame (42) being fixed to the upper part of the right side of the fixing seat (41), one end of the support frame (42) being fixed to the fixing seat (41), and the other end of the support frame (42) being hinged to a cantilever (43), a hydraulic telescopic rod (44) being hinged to the lower part of the right side of the fixing seat (41), one end of the hydraulic telescopic rod (44) being hinged to the fixing seat (41), and the other end of the hydraulic telescopic rod (44) being hinged to the middle part of the cantilever (43), a locking bolt (45) for fixing the water pump (2) being provided at the end of the cantilever (43), a support spring (5) for supporting the water pump (2) being provided on the base (3), and a correction ball group (6) being provided at the bottom of the water pump (2).

2. The deviation correction device for preventing a water pump from running dry according to claim 1, characterized in that: A fixing bolt (46) is provided on the left side of the fixing seat (41), and a threaded hole matching the fixing bolt (46) is provided on the bracket (1).

3. The deviation correction device for preventing a water pump from running dry according to claim 1, characterized in that: The deviation-correcting ball group (6) comprises a bearing (61) and a ball (62) rotatably connected to the bearing (61).

4. The deviation correction device for preventing a water pump from running dry according to claim 3, characterized in that: The bearing (61) is fixed to the bottom of the water pump (2). The bottom of the water pump (2) is provided with a groove. The upper half of the ball (62) is located in the groove, and the lower half of the ball (62) is located in the support spring (5).

5. The deviation correction device for preventing a water pump from running dry according to claim 1, characterized in that: The bracket (1) is provided with a groove that matches the fixing seat (41).

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