Anti-locking pump shaft
By setting up sewage grooves on the pump shaft, the problem of the pump shaft being stuck due to solid impurities is solved, and the pump shaft is highly reliable and convenient to use, with a simple structure and low cost.
Patent Information
- Application Number
- CN202421655533.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-12
- Publication Date
- 2025-04-11
- Estimated Expiration
- 2034-07-12
AI Technical Summary
During the rotation process, the pump shaft is prone to jamming into the gap between the pump shaft and the bearing due to solid impurities, which leads to the inability to operate the water pump, which is inconvenient to use and poor reliability.
A sewage drain tank is set up on the pump shaft, and the rotation of the pump shaft drives impurities into the sewage drain tank and is discharged together with the coolant to prevent impurities from getting stuck.
It effectively prevents the pump shaft from being stuck, improves the reliability and convenience of the pump shaft, and has a simple structure and low cost.
Smart Images
Figure CN222746294U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pump shafts, in particular to an anti-stuck pump shaft. Background Art
[0002] The pump shaft is an important part of the electronic water pump. The pump shaft is rotatably mounted on the bearing, and a blade is fixedly connected to the pump shaft. The blade is rotated by the pump shaft to transport the coolant. In order to reduce the noise generated by vibration during rotation, the gap between the pump shaft and the bearing is very small. There are the following problems in its use: due to the friction of internal parts or the infiltration of external impurities, some solid impurities will inevitably be mixed into the pipeline. These tiny fixed impurities will enter the coolant. Since the pump shaft is immersed in the coolant during operation, once these solid impurities in the coolant are stuck in the gap between the pump shaft and the bearing when passing through the pump shaft, it is very easy to cause the pump shaft to get stuck, resulting in the blades on the pump shaft being unable to rotate normally, causing the water pump to be unable to operate, inconvenient to use, and poor reliability. Therefore, a pump shaft that can prevent getting stuck is needed. Utility Model Content
[0003] In order to solve the above technical problems, the utility model provides an anti-stuck pump shaft with high reliability and practicality by arranging a sewage groove on the pump shaft to prevent impurities from being stuck between the pump shaft and the bearing, thereby preventing the pump shaft from being stuck.
[0004] The utility model discloses an anti-stuck pump shaft, comprising a pump shaft; a drain groove is arranged on the outer side wall of the pump shaft, and the drain groove has the function of draining sewage; when the coolant is transported by the impeller on the pump shaft, the pump shaft is immersed in the coolant, and once the impurities in the coolant are stuck between the pump shaft and the bearing, the pump shaft causes the impurities to enter the drain groove when rotating, and then as the pump shaft rotates, the solid impurities in the drain groove are discharged from the pump shaft together with the coolant, so as to prevent the impurities from being stuck in the gap between the pump shaft and the bearing and causing the pump shaft to be stuck. The utility model is convenient to use and has high reliability.
[0005] Preferably, the shape of the drain groove is spiral; a clockwise spiral drain groove is set on the outer wall of the pump shaft that rotates clockwise; a counterclockwise spiral drain groove is set on the outer wall of the pump shaft that rotates counterclockwise; when the pump shaft is rotating, the pump shaft drives the drain groove to rotate, and impurities stuck in the pump shaft and the bearing enter the drain groove. After entering the drain groove, as the pump shaft rotates, the spiral drain groove discharges the impurities and coolant in the drain groove to the outside world, thereby facilitating the discharge of impurities; and the structure is simple, which is convenient for processing on the pump shaft, with low cost and high economy.
[0006] Preferably, the drain groove passes through the pump shaft from top to bottom; through the above arrangement, impurities on the pump shaft can be discharged from the pump shaft through the drain groove, further facilitating the discharge of impurities on the pump shaft.
[0007] Preferably, the diameter of the pump shaft is 6 mm.
[0008] Preferably, the cross-section of the drain groove is semicircular, and the R of the semicircle is 0.6 mm. Since the volume of solid impurities in the coolant where the pump shaft is located is 0.5*0.5*0.5 mm, setting a drain groove with an R of 0.6 mm can just discharge the solid impurities on the pump shaft.
[0009] Preferably, the spiral angle of the drain groove is 15° and the height is 19.6 mm. Through the above arrangement, the drain groove can just surround the pump shaft with a diameter of 6 mm in one full circle, and impurities at various angles on the pump shaft can be discharged, thereby improving reliability.
[0010] Compared with the prior art, the utility model has the following beneficial effects: by arranging the sewage discharge groove on the pump shaft, impurities are prevented from being stuck between the pump shaft and the bearing, and the pump shaft is prevented from being stuck, and the reliability and practicality are high. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a first axonometric structural schematic diagram of the utility model;
[0012] Figure 2 It is a second axonometric structural schematic diagram of the utility model;
[0013] Figure 3 It is a main structural schematic diagram of the utility model.
[0014] Markings in the attached figure: 1, pump shaft; 2, sewage tank. DETAILED DESCRIPTION
[0015] In order to facilitate the understanding of the utility model, the utility model will be described more comprehensively below with reference to the relevant drawings. The utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.
[0016] Example
[0017] like Figures 1 to 3 The anti-stuck pump shaft in this case is the pump shaft 1, and a drain groove 2 is arranged on the outer wall of the pump shaft 1, and the drain groove 2 has the function of draining sewage; when the coolant is transported through the impeller on the pump shaft 1, the pump shaft 1 is immersed in the coolant. Once the impurities in the coolant are stuck between the pump shaft 1 and the bearing, the pump shaft 1 causes the impurities to enter the drain groove 2 when rotating, and then as the pump shaft 1 rotates, the solid impurities in the drain groove 2 are discharged from the pump shaft 1 together with the coolant, so as to prevent the impurities from being stuck in the gap between the pump shaft 1 and the bearing and causing the pump shaft 1 to be stuck. It is easy to use and has high reliability.
[0018] like Figure 1 The shape of the drain groove 2 is spiral; a clockwise spiral drain groove 2 is arranged on the outer wall of the pump shaft 1 which rotates clockwise; a counterclockwise spiral drain groove 2 is arranged on the outer wall of the pump shaft 1 which rotates counterclockwise; when the pump shaft 1 rotates, the pump shaft 1 drives the drain groove 2 to rotate, and the impurities stuck in the pump shaft 1 and the bearing enter the drain groove 2. As the pump shaft 1 rotates, the spiral drain groove 2 discharges the impurities in the drain groove 2 and the coolant to the outside together; the discharge of impurities is convenient; and the structure is simple, which is convenient for processing on the pump shaft 1, with low cost and high economy.
[0019] The drain trough 2 passes through the pump shaft 1 from top to bottom. Through the above arrangement, impurities on the pump shaft 1 can be discharged from the pump shaft 1 through the drain trough 2, further facilitating the discharge of impurities on the pump shaft 1.
[0020] The diameter of the pump shaft 1 is 6mm, the cross-section of the drain trough 2 is semicircular, and the R of the semicircle is 0.6mm; since the volume of solid impurities in the coolant where the pump shaft 1 is located is 0.5*0.5*0.5mm, setting the drain trough 2 with an R of 0.6mm can just meet the requirements of discharging the solid impurities on the pump shaft 1.
[0021] The spiral angle of the drain groove 2 is 15° and the height is 19.6 mm. Through the above arrangement, the drain groove 2 can just surround the pump shaft with a diameter of 6 mm in one full circle, and can discharge impurities at various angles on the pump shaft 1, thereby improving reliability.
[0022] In summary, the main beneficial effects of this case are:
[0023] 1. Impurities that enter between the pump shaft 1 and the bearing can be discharged, preventing the pump shaft 1 from getting stuck, and the reliability is high.
[0024] 2. Simple structure, easy processing and high economy.
[0025] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.
Claims
1. A pump shaft that prevents jamming, comprising a pump shaft (1); characterized in that: The outer side wall of the pump shaft (1) is provided with a sewage discharge groove (2), and the sewage discharge groove (2) has the function of sewage discharge.
2. The anti-seizure pump shaft according to claim 1, characterized in that: The shape of the sewage trough (2) is spiral.
3. The anti-seizure pump shaft according to claim 2, characterized in that: The sewage discharge trough (2) passes through the pump shaft (1) from top to bottom.
4. The anti-seizure pump shaft according to claim 1, characterized in that: The diameter of the pump shaft (1) is 6 mm.
5. The anti-seizure pump shaft according to claim 2, characterized in that: The cross-section of the sewage trough (2) is in the shape of a semicircle, and the R of the semicircle is 0.6 mm.
6. The anti-seizure pump shaft according to claim 2, characterized in that: The spiral angle of the sewage trough (2) is 15° and the height is 19.6 mm.