Multi-stage speed increasing type water pump

Abstract

The utility model relates to the technical field of water pumps, in particular to a multistage speed-increasing type water pump which comprises a pump body, a main shaft, a water inlet end, a water outlet end, a water outlet pipe and a speed-increasing gearbox, the speed-increasing gearbox comprises a box body, one end of the main shaft of the pump body penetrates into the box body, a driving shaft is installed in the box body through a bearing, and the driving shaft and the main shaft are arranged in parallel. The driving shaft is connected with an output shaft of the motor through an adapter, a driving gear is installed on the driving shaft, a driven gear meshed with the driving gear is installed on the main shaft, the transmission ratio of the driven gear to the driving gear is smaller than 1, and rotation speed increasing of the main shaft is achieved. Due to the meshing design of the driving gear and the driven gear, the output shaft of the motor is connected with the driving shaft, when the motor is started, the driving shaft is driven to rotate, then the driving gear on the driving shaft is driven to rotate synchronously, and the driven gear rotates at a high speed along with the driving shaft; and efficient conveying is ensured.

Description

Technical Field

[0001] This utility model relates to the technical field of water pumps, and in particular to a multi-stage speed-increasing water pump. Background Technology

[0002] In industrial applications, water pumps are crucial mechanical devices widely used to transport various liquids, such as water, oil, acids, alkalis, and even mixtures of liquids and gases. The speed of a water pump is typically determined by the power of the main engine driving it, while the selection of the pump depends on its application and performance requirements. For example, in water supply booster stations, centrifugal pumps are widely used due to their simple structure, pulsation-free delivery, and easy flow regulation. However, in certain situations, such as when the main engine power is insufficient, traditional water pumps may be unable to provide sufficient speed due to impeller wear, wear on the inner surface of the pump casing, or damage to the seals, thus limiting their water delivery efficiency and performance. This can lead to the pump not reaching its full potential in high-flow or high-pressure applications, affecting the overall system efficiency.

[0003] In existing technologies, to increase the speed of a water pump, the common approach is to replace the pump, for example, by replacing the existing low-speed pump with a higher-speed one. However, while this method can increase the speed to some extent, the replacement process is cumbersome, costly, and often fails to perfectly adapt to the installation and usage conditions of the existing system, potentially leading to new compatibility issues. Furthermore, frequent pump replacements increase maintenance difficulty and downtime, impacting production efficiency.

[0004] Therefore, there is an urgent need for a simpler, more economical, and more efficient water pump speed-up solution. Utility Model Content

[0005] To address the aforementioned problems, this invention provides a multi-stage speed-increasing water pump.

[0006] Multi-stage speed-increasing water pumps include:

[0007] The pump body contains an impeller, and a main shaft is installed at the center of the impeller. The main shaft is mounted in the pump body via bearings.

[0008] The pump body is connected to an inlet pipe at the inlet end.

[0009] The outlet end of the pump body is connected to an outlet pipe;

[0010] The speed increaser is located on one side of the pump body. One end of the speed increaser is connected to the motor output shaft, and the other end is connected to the pump body main shaft.

[0011] The speed increaser includes a housing, which is a hollow shell structure. A cover plate is fastened to the upper end of the housing by bolts. One end of the pump body's main shaft passes through the housing. A drive shaft is installed in the housing by bearings. The drive shaft is parallel to the main shaft. The drive shaft is connected to the motor output shaft by an adapter.

[0012] A drive gear is mounted on the drive shaft, and a driven gear that meshes with the drive gear is mounted on the main shaft. The transmission ratio between the driven gear and the drive gear is less than 1, thereby increasing the rotational speed of the main shaft.

[0013] Preferably, an installation ring is installed at the end of the water inlet pipe away from the pump body, and the installation ring is fastened to the water inlet pipe by a fastening ring. A sealing gasket is provided inside the installation ring to ensure the sealing between the water inlet pipe and the installation ring. A filter barrel is detachably installed on the installation ring, and the filter barrel has several filter holes.

[0014] Preferably, the pump body has an annular boss on the side facing the speed increaser, the main shaft is located in the center of the annular boss, the outer wall of the annular boss has several retaining seats, the retaining seats are inserted with positioning screws, and the housing has positioning holes for the positioning screws to be inserted at the corresponding retaining seats.

[0015] Preferably, the annular boss and the housing are in a concave-convex fit.

[0016] Preferably, the drive shaft includes a drive shaft one and a drive shaft two, which are rotatably connected. The drive shaft two is located on the side closer to the pump body. The driving gear is mounted on the drive shaft one. The drive shaft two is provided with a speed change mechanism. The main shaft is axially slidably provided with a sliding shaft at one end of the housing. A mating shaft is provided on the side of the sliding shaft away from the main shaft. The driven gear is mounted on the mating shaft.

[0017] Preferably, the speed change mechanism includes a speed change gear, which is mounted on the second drive shaft and meshes with the driven gear. A speed change lever is mounted on one end of the first drive shaft facing the second drive shaft. A slot is provided at the center of the second drive shaft for the speed change lever to rotate and pass through. After the speed change lever passes through the second drive shaft, a timing disc is mounted on it. The speed change lever is mounted in the housing via a bearing. The timing disc is provided with a speed change assembly that drives the second drive shaft to rotate.

[0018] Preferably, the transmission assembly includes a fixed plate located between the synchronous disc and the transmission gear, and the fixed plate is fixed to the inner wall of the housing. The second drive shaft is rotatably connected to the fixed plate. A first gear is installed on the drive shaft and located between the fixed plate and the synchronous disc. Multiple second gears are circumferentially meshed on the outer side of the first gear. The second gears are rotatably mounted on the fixed plate via a rotating shaft. A synchronous gear ring is provided on the outer wall of the synchronous disc. The synchronous gear ring meshes with the second gear, so that the transmission lever drives the second drive shaft to rotate.

[0019] Preferably, the main shaft and the sliding shaft are connected by a spline sliding fit.

[0020] In summary, this application includes the following beneficial technical effects:

[0021] I. This utility model uses a meshing design of a driving gear and a driven gear, with the motor output shaft connected to the drive shaft. Therefore, when the motor starts, it will drive the drive shaft to rotate, which in turn drives the driving gear on it to rotate synchronously. The driven gear will then rotate at high speed. Since the transmission ratio is less than 1, the main shaft speed is significantly increased, the impeller rotates faster, and the water flow rate is greatly increased, ensuring efficient delivery.

[0022] Second, the meshing of the synchronous gear ring and gear two in this utility model realizes the first speed increase adjustment, while the transmission from gear two to gear one is a second speed change adjustment. Through this multi-stage transmission mechanism, not only is the overall transmission efficiency effectively improved, but it also ensures that the pump body can stably output strong power under different working conditions.

[0023] Third, this utility model uses a control board to drive the movement of the control lever, thereby enabling flexible switching between the driven gear and the driving gear and the variable speed gear, thus precisely adjusting the spindle speed to meet different working requirements and ensuring stable and efficient system operation. Attached Figure Description

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0025] Figure 1 This is a schematic diagram of the structure of this utility model.

[0026] Figure 2 This is a schematic diagram of the structure between the annular boss, the card holder, and the pump body of this utility model.

[0027] Figure 3 This is a schematic diagram of the structure of the speed increaser of this utility model. Figure 1 .

[0028] Figure 4 This is a schematic diagram of the structure of the speed increaser of this utility model. Figure 2 .

[0029] Figure 5 This is a schematic diagram of the structure of the speed increaser of this utility model. Figure 3 .

[0030] Figure 6 This is a front view of the speed increaser of this utility model.

[0031] Figure 7 This is a partial structural schematic diagram of the speed change mechanism of this utility model.

[0032] Figure 8This is a schematic diagram of the structure between the main shaft, sliding shaft, driven gear and control lever of this utility model.

[0033] Figure 9 This is a utility model Figure 4 A magnified view of a portion of point A in the middle.

[0034] In the diagram, 1. Pump body; 10. Main shaft; 11. Inlet end; 12. Inlet pipe; 13. Outlet end; 14. Outlet pipe; 15. Mounting ring; 16. Filter barrel; 17. Annular boss; 18. Card seat; 19. Positioning screw; 2. Speed ​​increaser; 20. Housing; 21. Cover plate; 22. Drive shaft; 23. Driving gear; 24. Driven gear; 221. Drive shaft one; 222. Drive shaft two; 25. Sliding shaft; 26. Mating shaft; 3. Speed ​​change mechanism; 301. Speed ​​change gear; 302. Speed ​​change lever; 303. Synchronizing disc; 304. Fixing plate; 305. Gear one; 306. Gear two; 307. Rotating shaft; 308. Synchronizing gear ring; 309. Control lever; 311. Mounting shaft; 312. Fixing frame; 313. Adjusting screw; 314. Control board; 315. Handwheel. Detailed Implementation

[0035] The following is in conjunction with the appendix Figures 1-9 The embodiments of this utility model will be described in detail below.

[0036] Reference Figures 1 to 3 As shown, a multi-stage speed-increasing water pump includes:

[0037] Pump body 1, impeller is provided inside pump body 1, main shaft 10 is installed at the center of impeller, and main shaft 10 is installed inside pump body 1 through bearing;

[0038] Water inlet end 11, water inlet pipe 12 is connected to water inlet end 11 of pump body 1;

[0039] Water outlet 13, water outlet 13 of pump body 1 is connected to water outlet pipe 14;

[0040] Speed ​​increaser 2 is located on one side of pump body 1. One end of speed increaser 2 is connected to the motor output shaft, and the other end is connected to the main shaft 10 of pump body 1.

[0041] This application achieves multi-stage speed increase of the water pump by setting speed increaser 2, which improves the working efficiency of the water pump. Speed ​​increaser 2 accelerates the rotation of the main shaft 10, thereby driving the impeller to rotate at high speed and enhancing the water delivery capacity.

[0042] The speed increaser 2 includes a housing 20, which is a hollow shell structure. The upper end of the housing 20 is fastened with a cover plate 21 by bolts. One end of the main shaft 10 of the pump body 1 passes through the housing 20. A drive shaft 22 is installed inside the housing 20 by bearings. The drive shaft 22 is arranged parallel to the main shaft 10. The drive shaft 22 is connected to the motor output shaft through an adapter.

[0043] A drive gear 23 is mounted on the drive shaft 22, and a driven gear 24 that meshes with the drive gear 23 is mounted on the main shaft 10. The transmission ratio between the driven gear 24 and the drive gear 23 is less than 1, thereby increasing the rotational speed of the main shaft 10.

[0044] This application utilizes the meshing design of the driving gear 23 and the driven gear 24, with the motor output shaft connected to the drive shaft 22. Therefore, when the motor starts, it drives the drive shaft 22 to rotate, which in turn drives the driving gear 23 to rotate synchronously. The driven gear 24 then rotates at high speed. Thanks to the design with a transmission ratio of less than 1, the rotational speed of the main shaft 10 is significantly improved, the impeller rotational speed is increased, and the water flow rate is greatly increased, ensuring a highly efficient and stable conveying effect.

[0045] An installation ring 15 is installed at the end of the water inlet pipe 12 away from the pump body 1, and the installation ring 15 is fastened to the water inlet pipe 12 by a fastening ring. The installation ring 15 has a built-in sealing gasket to effectively ensure the sealing effect between the water inlet pipe 12 and the installation ring 15. A filter barrel 16 is detachably installed on the installation ring 15, and the filter barrel 16 has several filter holes.

[0046] This design uses a detachable filter canister 16, which makes it easy for users to clean impurities regularly, ensuring clean water quality and thus extending the overall service life of the water pump.

[0047] The pump body 1 has an annular boss 17 on the side facing the speed increaser 2. The main shaft 10 is located in the center of the annular boss 17. Several card seats 18 are provided on the outer wall of the annular boss 17. Positioning screws 19 are inserted into the card seats 18. The housing 20 has positioning holes for the positioning screws 19 to be inserted at the card seats 18.

[0048] The annular boss 17 and the housing 20 are in a concave-convex fit.

[0049] This application utilizes the interlocking design of the annular boss 17 and the housing 20 to ensure a tight fit between the speed increaser 2 and the pump body 1, preventing vibration and displacement, and improving the overall structural stability and durability. The positioning screw 19 is precisely fixed to the positioning hole via the retainer 18, further enhancing the connection's firmness, effectively preventing loosening during operation, ensuring long-term stable operation of the water pump, and improving the equipment's safety and reliability.

[0050] Reference Figures 4 to 8As shown, the drive shaft 22 includes a first drive shaft 221 and a second drive shaft 222, which are rotatably connected. The second drive shaft 222 is located on the side closer to the pump body 1. The driving gear 23 is mounted on the first drive shaft 221. The second drive shaft 222 is provided with a speed change mechanism 3. The main shaft 10 is axially slidably provided with a sliding shaft 25 at one end of the housing 20. The sliding shaft 25 is provided with a mating shaft 26 on the side away from the main shaft 10. The driven gear 24 is mounted on the mating shaft 26.

[0051] The transmission mechanism 3 includes a transmission gear 301, which is mounted on the second drive shaft 222 and meshes with the driven gear 24. A transmission lever 302 is mounted on one end of the first drive shaft 221 facing the second drive shaft 222. A slot is provided at the center of the second drive shaft 222 for the transmission lever 302 to rotate and pass through. After the transmission lever 302 passes through the second drive shaft 222, a timing disc 303 is mounted on it. The transmission lever 302 is mounted in the housing 20 through bearings. The timing disc 303 is provided with a transmission component that drives the second drive shaft 222 to rotate.

[0052] The transmission assembly includes a fixed plate 304 located between the synchronous disc 303 and the transmission gear 301, and the fixed plate 304 is fixed to the inner wall of the housing 20. The second drive shaft 222 is rotatably connected to the fixed plate 304. A first gear 305 is installed on the drive shaft 22 and located between the fixed plate 304 and the synchronous disc 303. Multiple second gears 306 are circumferentially meshed on the outer side of the first gear 305. The second gears 306 are rotatably mounted on the fixed plate 304 through a rotating shaft 307. A synchronous gear ring 308 is provided on the outer wall of the synchronous disc 303. The synchronous gear ring 308 meshes with the second gears 306, so that the transmission lever 302 drives the second drive shaft 222 to rotate.

[0053] The main spindle 10 and the sliding shaft 25 are connected by a spline sliding fit.

[0054] A control rod 309 is provided at the end of the mating shaft 26 away from the main shaft 10. The control rod 309 slides out of the housing 20. An installation shaft 311 is sleeved on the outside of the control rod 309. The installation shaft 311 is mounted on the housing 20 through a bearing.

[0055] Initially, the driving gear 23 meshes with the driven gear 24, and the initial speed increase is achieved solely through the transmission ratio between the driven gear 24 and the driving gear 23. As the shift lever 302 is adjusted, the drive shaft 221 drives the shift lever 302 to rotate synchronously, and the synchronizing disc 303 rotates accordingly. The gear 2 306 meshes with the synchronizing ring gear 308, causing the synchronizing ring gear 308 to drive the gear 2 306 to rotate around the rotating shaft 307. The gear 1 305 meshes with the gear 2 306, causing the gear 2 306 to rotate as well. Through the multi-stage transmission of the synchronizing ring gear 308, the gear 2 306, and the gear 1 305, the speed change function is achieved, that is, the rotational speed of the drive shaft 2 222 is increased, thereby increasing the rotational speed of the shift gear 301.

[0056] When the push control lever 309 moves towards the pump body 1, the sliding shaft 25 moves towards the inside of the main shaft 10. The spline fit is tight, and the linkage between the main shaft 10 and the sliding shaft 25 is smoother. During this process, the driven gear 24 disengages from the drive gear 23 and re-engages with the transmission gear 301. The drive shaft 222, which has undergone multi-stage speed increase, drives the transmission gear 301 to rotate at high speed, further improving the working efficiency and output power of the pump body 1.

[0057] It should be noted that the meshing of the synchronous gear ring 308 and the second gear 306 completes the initial speed increase, and the second gear 306 then transmits to the first gear 305 to achieve a secondary speed change. Through this multi-stage transmission mechanism, not only is the overall transmission efficiency effectively improved, but it also ensures that the pump body 1 can stably output strong power under different working conditions.

[0058] When the transmission ratio between gear 1 (305) and gear 2 (306) is exactly 1, the transmission from gear 2 (306) to gear 1 (305) does not produce a speed-increasing effect. However, with the adjustment of the synchronous ring gear 308, the speed of drive shaft 2 (222) can still be increased. When the transmission ratio between gear 1 (305) and gear 2 (306) is greater than 1, the transmission from gear 2 (306) to gear 1 (305) is in a deceleration state. At this time, the adjustment of the synchronous ring gear 308 is more critical, ensuring that drive shaft 2 (222) can still maintain a stable and appropriate speed in the deceleration state. When the transmission ratio between gear 1 (305) and gear 2 (306) is less than 1, the transmission from gear 2 (306) to gear 1 (305) is in a speed-increasing state. At this time, the adjustment of the synchronous ring gear 308 and the efficient transmission of gear 2 (306) complement each other, further optimizing the speed increase of drive shaft 2 (222) and ensuring that pump body 1 can maintain efficient and stable power output under different loads.

[0059] Reference Figure 4 and Figure 9As shown, a fixing bracket 312 is installed on the outer side of the housing 20 corresponding to the control rod 309. An adjusting screw 313 is rotatably installed on the fixing bracket 312. The other end of the adjusting screw 313 is rotatably installed on the outer wall of the housing 20. A control plate 314 is rotatably installed on the end of the control rod 309 facing the fixing bracket 312. The control plate 314 is threadedly connected to the adjusting screw 313. The rotation of the adjusting screw 313 drives the control plate 314 to move, thereby pushing the control rod 309 to slide. A handwheel 315 is installed on the end of the adjusting screw 313 away from the housing 20.

[0060] When the driven gear 24 meshes with the driving gear 23, the control plate 314 is in the initial position of the adjusting screw 313, that is, in a position away from the side wall of the housing 20. When speed adjustment is required, the adjusting screw 313 is rotated by controlling the handwheel 315. Under the threaded engagement of the adjusting screw 313 and the control plate 314, the control plate 314 gradually approaches the side wall of the housing 20, driving the control rod 309 to move inward, realizing the disengagement of the driven gear 24 from the driving gear 23 and re-meshing with the speed change gear 301. At this time, the motor speed is transmitted to the drive shaft 222 through the transmission of the synchronous gear ring 308 and the second gear 306, and the transmission of the second gear 306 and the first gear 305, so that it can reach the ideal speed under multi-level speed increase adjustment, ensuring that the pump body 1 can output strong power efficiently and stably under different working conditions to meet the needs of complex working conditions.

[0061] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary in all respects and not restrictive.

[0062] Furthermore, readers should understand that although this specification describes embodiments, each embodiment is not limited to a single technical solution. This descriptive style is for clarity only, and those skilled in the art are advised to consider the specification as a whole, as the technical solutions in each embodiment can be appropriately combined to form other understandable embodiments.

Claims

1. A multi-stage speed increasing water pump, characterized by, Include: Pump body (1), the pump body (1) is provided with an impeller, the impeller center is installed with a main shaft (10), the main shaft (10) is installed in the pump body (1) through bearing; Water inlet end (11), the water inlet end (11) of the pump body (1) is connected with a water inlet pipe (12); Water outlet end (13), the water outlet end (13) of the pump body (1) is connected with a water outlet pipe (14); Speed increasing box (2), it is arranged in one side of the pump body (1), one end of the speed increasing box (2) is connected with the motor output shaft, the other end is connected with the pump body (1) main shaft (10); The speed increasing box (2) includes a box body (20), the box body (20) is configured as a hollow shell structure, and the upper end of the box body (20) is fastened with a cover plate (21) by bolts, one end of the main shaft (10) of the pump body (1) is arranged in the box body (20), a drive shaft (22) is installed in the box body (20) through a bearing, the drive shaft (22) is arranged in parallel with the main shaft (10), and the drive shaft (22) is connected with the motor output shaft through an adapter; The drive shaft (22) is installed with a driving gear (23), the main shaft (10) is installed with a driven gear (24) engaged with the driving gear (23), and the transmission ratio of the driven gear (24) and the driving gear (23) is less than 1, so that the main shaft (10) rotates at high speed.

2. The multi-stage speed increasing water pump according to claim 1, characterized by: The end of the water inlet pipe (12) away from the pump body (1) is installed with a mounting ring (15), and the mounting ring (15) is fastened to the water inlet pipe (12) by a fastening ring, the mounting ring (15) is detachably installed with a filter barrel (16), and a plurality of filter holes are formed in the filter barrel (16).

3. The multi-stage speed increasing water pump according to claim 1, characterized by: The side of the pump body (1) facing the speed increasing box (2) is provided with an annular boss (17), and the main shaft (10) is located in the center of the annular boss (17), a plurality of clamping seats (18) are arranged on the outer side wall of the annular boss (17), the clamping seats (18) are inserted with positioning screws (19), and the box body (20) is provided with positioning holes for inserting the positioning screws (19) at the positions corresponding to the clamping seats (18).

4. The multi-stage speed increasing water pump according to claim 3, characterized by: The annular boss (17) and the box body (20) are matched in concave-convex.

5. The multi-stage speed increasing water pump according to claim 1, characterized by: The drive shaft (22) includes a drive shaft one (221) and a drive shaft two (222), the drive shaft one (221) and the drive shaft two (222) are rotatably connected, the drive shaft two (222) is located on the side close to the pump body (1), the driving gear (23) is installed on the drive shaft one (221), the drive shaft two (222) is provided with a speed changing mechanism (3), one end of the main shaft (10) is axially slidably provided with a sliding shaft (25), the side of the sliding shaft (25) away from the main shaft (10) is provided with a matching shaft (26), and the driven gear (24) is installed on the matching shaft (26).

6. The multi-stage speed increasing water pump according to claim 5, characterized by: The variable speed mechanism (3) comprises a variable speed gear (301) installed on the second driving shaft (222), and the variable speed gear (301) is engaged with the driven gear (24), the first driving shaft (221) is provided with a variable speed lever (302) at one end of the second driving shaft (222), a hole slot is formed in the center of the second driving shaft (222) for rotation and penetration of the variable speed lever (302), the variable speed lever (302) is provided with a synchronous disc (303) after penetrating the second driving shaft (222), and the variable speed lever (302) is installed in the box (20) through a bearing, and the synchronous disc (303) is provided with a variable speed assembly for driving the second driving shaft (222) to rotate.

7. The multi-stage speed increasing water pump according to claim 6, characterized by: The variable speed assembly comprises a fixed plate (304) between the synchronous disc (303) and the variable speed gear (301), and the fixed plate (304) is fixed on the inner wall of the box (20), the second driving shaft (222) is rotatably connected with the fixed plate (304), a gear one (305) is installed on the driving shaft (22) and between the fixed plate (304) and the synchronous disc (303), a plurality of gear twos (306) are circumferentially engaged outside the gear one (305), the gear twos (306) are rotatably installed on the fixed plate (304) through a rotating shaft (307), a synchronous gear ring (308) is arranged on the outer side wall of the synchronous disc (303), the synchronous gear ring (308) is engaged with the gear two (306), and the variable speed lever (302) drives the second driving shaft (222) to rotate.

8. The multi-stage speed increasing water pump according to claim 5, characterized by: The main shaft (10) and the sliding shaft (25) are slidably connected through the spline.

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