Speed-increasing multi-gear variable-speed water pump

Abstract

The utility model relates to the technical field of water pumps, and particularly discloses a speed-increasing multi-gear variable-speed water pump, which is characterized in that one side of a connecting flange is connected with a shell of a speed-increasing gearbox, and the other side of the connecting flange is connected with the side wall of a pump chamber; one end of the water pump main shaft penetrates through the connecting flange and extends into the pump chamber; the other end of the spline main shaft is connected with an external power device; the spline main shaft is sleeved with the driving gear and rotationally connected with the driving gear, the spline main shaft is sleeved with the gear shifting sliding sleeve and slidably connected with the gear shifting sliding sleeve, and the gear shifting switch is arranged on the box body and extends into the box body to be connected with the gear shifting sliding sleeve to drive the gear shifting sliding sleeve to slide along the spline main shaft; the driven gear is smaller than the driving gear in diameter. The driving gear and the driven gear which are different in diameter are arranged, the gear shifting sliding sleeve and the gear shifting switch are used in cooperation, the multi-gear speed changing function of the water pump is achieved, and the rotating speed and the flow of the water pump can be adjusted according to actual needs.

Description

TECHNICAL FIELD

[0001] The utility model relates to water pump technical field, specifically point to a kind of speed-increasing multi-gear variable speed water pump. BACKGROUND

[0002] Traditional water pump design can only provide single speed and pressure output, difficult to meet the diversified application needs. Especially in the scene needing to adjust water flow speed or pressure, the limitation of traditional water pump is particularly obvious. In addition, long time high-load operation is also prone to water pump overheating, affecting its stability and service life.

[0003] In order to solve these problems, some water pumps with variable speed function appear in the market, but these water pumps mostly use complex electronic control system to realize variable speed, not only high cost, but also difficult to maintain. At the same time, these water pumps also have deficiencies in heat dissipation, which is difficult to effectively cope with long time running in high temperature environment.

[0004] Therefore, a speed-increasing multi-gear variable speed water pump becomes a problem that people urgently need to solve. INVENTION CONTENTS

[0005] The technical problem to be solved by the utility model is to provide a speed-increasing multi-gear variable speed water pump, which realizes the speed-increasing and multi-gear variable speed function of the water pump through the combination of the speed-increasing gear box and the pump body, and effectively reduces the working temperature of the gear box and the pump body through the design of the circulating water channel and the cooling water tank, thereby improving the stability and service life of the water pump.

[0006] To solve the above technical problems, the technical scheme provided by the utility model is as follows: a speed-increasing multi-gear variable speed water pump, comprising a speed-increasing gear box and a pump body; the pump body comprises a connecting flange and a pump chamber, one side of the connecting flange is detachably connected with the shell of the speed-increasing gear box, and the opposite side is detachably connected with the side wall of the pump chamber;

[0007] The speed-increasing gear box comprises a box body, a water pump main shaft, a spline main shaft and a gear shifting switch, the water pump main shaft penetrates the box body and extends to the inside of the pump chamber through the connecting flange at one end; one end of the spline main shaft is rotatably connected with the side wall of the box body, and the other end extends to the outside of the box body to connect an external power device; the spline main shaft is provided with a driving gear and a gear shifting sleeve, the driving gear is sleeved on the spline main shaft and rotatably connected therewith, and the gear shifting sleeve is sleeved on the spline main shaft and slidably connected therewith; the gear shifting switch is arranged on the box body and extends into the box body to connect the gear shifting sleeve to drive it to slide along the spline main shaft; the water pump main shaft is provided with a driven gear meshing with the driving gear for transmission, and the diameter of the driven gear is smaller than that of the driving gear.

[0008] Further, the driving gear includes a first driving wheel and a second driving wheel, the first driving wheel and the second driving wheel are different in diameter, and the shift sleeve is arranged between the first driving wheel and the second driving wheel; the driven gear includes a first driven wheel and a second driven wheel, the first driven wheel is in meshing transmission with the first driving wheel, and the second driven wheel is in meshing transmission with the second driving wheel.

[0009] Further, shift detents are arranged on both sides of the shift sleeve, driven detents are arranged on the inner sides of the first driving wheel and the second driving wheel, and the shift detents and the driven detents are in contact or separated.

[0010] Further, the shift switch includes a switch shaft, a handle and a pushing rod, the switch shaft is rotationally connected to the box body, the handle is fixed to one side of the switch shaft outside the box body, a pushing groove is arranged on the surface of the shift sleeve, one end of the pushing rod is connected to one side of the switch shaft inside the box body and is eccentrically fixed, and the other end of the pushing rod extends into the pushing groove to drive the shift sleeve to slide.

[0011] Further, the other end of the water pump main shaft extends to the outside of the box body and is provided with a driving structure.

[0012] Further, a main turbine is arranged inside the pump chamber, the main turbine is sleeved on the water pump main shaft, the water pump main shaft extends to the water inlet of the pump chamber at the end, and an auxiliary turbine is arranged on the end of the water pump main shaft.

[0013] Further, a circulating water channel is arranged in the side wall of the connecting flange and communicates with the pump chamber, and a cooling water tank is arranged on the outer wall of the box body and communicates with the circulating water channel.

[0014] Further, the circulating water channel includes an upper water channel and a lower water channel, the upper water channel is arranged on the inner wall of the upper side of the connecting flange, and the lower water channel is arranged on the lower inner wall of the connecting flange; the water pump main shaft is rotationally connected to the box body through a bearing, and the cooling water tank surrounds the bearing outside the box body on the side close to the connecting flange.

[0015] Further, the pump chamber is provided with a water inlet on the outer side of the water pump main shaft in the axial direction, and the pump chamber is provided with a water outlet on the outer side of the main turbine in the circumferential direction.

[0016] Further, the speed increasing gear box is provided with supporting legs at the bottom.

[0017] The utility model discloses a kind of speed-increasing multi-gear variable speed water pumps, comprising gear box, pump body, connecting flange, pump chamber, box body, water pump main shaft, spline main shaft, gear shift switch, driving gear, gear shift sleeve, driven gear, first driving wheel, second driving wheel, first driven wheel, second driven wheel, gear shift pawl, driven pawl, switch rotating shaft, handle, lever, lever slot, driving structure, main turbine, auxiliary turbine, circulating waterway, cooling water tank, upper waterway, lower waterway, water inlet, water outlet and support leg. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a kind of structure schematic diagram of the utility model discloses a speed-increasing multi-gear variable speed water pump.

[0019] Figure 2 It is the front view of the utility model discloses a speed-increasing multi-gear variable speed water pump.

[0020] Figure 3 It is the left view of the utility model discloses a speed-increasing multi-gear variable speed water pump.

[0021] Figure 4 It is Figure 3 sectional view at A-A.

[0022] Figure 5 It is the internal structure schematic diagram of the utility model discloses a speed-increasing multi-gear variable speed water pump Figure 1 .

[0023] Figure 6 It is the internal structure schematic diagram of the utility model discloses a speed-increasing multi-gear variable speed water pump Figure 2 .

[0024] Figure 7 It is the structure schematic diagram of main turbine.

[0025] Figure 8 It is the structure schematic diagram of auxiliary turbine.

[0026] As shown in the figure: 1, speed-increasing gear box, 2, pump body, 3, connecting flange, 4, pump chamber, 5, box body, 6, water pump main shaft, 7, spline main shaft, 8, gear shift switch, 9, driving gear, 10, gear shift sleeve, 11, driven gear, 12, first driving wheel, 13, second driving wheel, 14, first driven wheel, 15, second driven wheel, 16, gear shift pawl, 17, driven pawl, 18, switch rotating shaft, 19, handle, 20, lever, 21, lever slot, 22, driving structure, 23, main turbine, 24, auxiliary turbine, 25, circulating waterway, 26, cooling water tank, 27, upper waterway, 28, lower waterway, 29, water inlet, 30, water outlet, 31, support leg. DETAILED DESCRIPTION

[0027] In the description of the utility model, it is understood that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "vertical", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0028] In the description of the utility model, "first feature", "second feature" can include one or more features. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more features.

[0029] In the utility model, unless otherwise expressly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, and can also be detachably connected or integrally connected; it can be mechanical connection, and can also be electrical connection; it can be directly connected, and can also be indirectly connected through an intermediate medium, and can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0030] The utility model discloses a kind of speed-increasing multi-gear variable speed water pumps, which is specifically as follows:

[0031] In combination with the drawings Figures 1-8 The specific implementation process of the utility model of a kind of speed-increasing multi-gear variable speed water pump is as follows:

[0032] A kind of speed-increasing multi-gear variable speed water pump, including speed-increasing gear box 1 and pump body 2. Pump body 2 is made of connecting flange 3 and pump chamber 4, the side of connecting flange 3 is detachably connected with the shell of speed-increasing gear box 1 by bolt and the like fastener, the other side is also detachably connected with the side wall of pump chamber 4 by bolt and the like fastener, facilitating the assembly and maintenance of water pump.

[0033] The speed increasing gearbox 1 comprises a box body 5, a water pump main shaft 6, a spline main shaft 7 and a shift switch 8. The water pump main shaft 6 penetrates through the box body 5, and one end thereof extends into the pump chamber 4 through the connecting flange 3 for driving the turbine in the pump chamber 4 to rotate. One end of the spline main shaft 7 is rotatably connected with the side wall of the box body 5 through a bearing, and the other end thereof extends outside the box body 5 for connecting an external power device (such as a motor or an engine). The spline main shaft 7 is provided with a driving gear 9 and a shift sleeve 10. The driving gear 9 is sleeved on the spline main shaft 7 and is rotatably connected with the spline main shaft 7. The shift sleeve 10 is sleeved on the spline main shaft 7 and is slidably connected with the spline main shaft 7. The shift switch 8 is arranged on the box body 5 and extends into the box body 5 to be connected with the shift sleeve 10 for driving the shift sleeve 10 to slide along the spline main shaft 7.

[0034] The water pump main shaft 6 is provided with a driven gear 11 which is in meshing transmission with the driving gear 9, and the diameter of the driven gear 11 is smaller than that of the driving gear 9 to achieve the speed increasing effect. The driving gear comprises a first driving gear 12 and a second driving gear 13, and the diameters of the two are different. The shift sleeve 10 is arranged between the first driving gear 12 and the second driving gear 13. The driven gear 11 also comprises a first driven gear 14 and a second driven gear 15. The first driven gear 14 is in meshing transmission with the first driving gear 12, and the second driven gear 15 is in meshing transmission with the second driving gear 13. By sliding the shift sleeve 10, the meshing state of different driving gears and the driven gear 11 can be switched, so as to realize the multi-gear speed change of the water pump.

[0035] The shift sleeve 10 is provided with shift detents 16 on both sides thereof. The inner sides of the first driving gear 12 and the second driving gear 13 are provided with driven detents 17. When the shift detents 16 are in contact with the driven detents 17, the rotation of the spline main shaft 7 drives the shift sleeve 10 to rotate, and then drives the driving gear to rotate to realize the operation of the water pump. When the shift detents 16 are separated from the driven detents 17, the shift sleeve 10 idles with the spline main shaft 7.

[0036] The shift switch 8 comprises a switch rotating shaft 18, a handle 19 and a poking rod 20. The switch rotating shaft 18 is rotatably connected with the box body 5. The handle 19 is fixed at one side of the switch rotating shaft 18 which is outside the box body 5 for convenient operation. The shift sleeve 10 is provided with a poking groove 21 on the surface thereof. One end of the poking rod 20 is connected with one side of the switch rotating shaft 18 which is inside the box body 5 and is eccentrically fixed. The other end of the poking rod 20 extends into the poking groove 21. By rotating the handle 19, the poking rod 20 can be driven to slide in the poking groove 21, so as to drive the shift sleeve 10 to slide along the spline main shaft 7, and the shift operation is realized.

[0037] The other end of the water pump main shaft 6 extends to the outside of the box 5 and is provided with a driving structure 22 (such as a belt pulley or a shaft coupling) for facilitating connection with an external power device. The user can choose to directly drive the water pump main shaft 6 with the external power device in the case where the shift teeth 16 are separated from the driven teeth 17, so as to realize conventional water pumping without speed increasing.

[0038] The pump chamber 4 is internally provided with a main turbine 23, which is sleeved on the water pump main shaft 6, and the water pump main shaft 6 extends to the water inlet 29 of the pump chamber 4 at the end for pumping water. The end of the water pump main shaft 6 is further provided with an auxiliary turbine 24 for further improving the water pumping efficiency.

[0039] The side wall of the connecting flange 3 is internally provided with a circulating water channel 25 communicating with the pump chamber 4, and the outer wall of the box 5 is provided with a cooling water tank 26 communicating with the circulating water channel 25. The circulating water channel 25 includes an upper water channel 27 and a lower water channel 28, and the upper water channel 27 is arranged on the inner wall of the upper side of the connecting flange 3, and the lower water channel 28 is arranged on the inner wall of the lower side of the connecting flange 3. The cooling water tank 26 surrounds the outside of the bearing near the side of the connecting flange 3 inside the box 5. Through the cooperation of the circulating water channel 25 and the cooling water tank 26, the working temperature of the gear box and the pump body 2 can be effectively reduced.

[0040] The water inlet 29 is arranged on the outer side of the water pump main shaft 6, and the water outlet 30 is arranged on the outer side of the main turbine 23, so as to ensure smooth water flow.

[0041] The bottom of the speed increasing gear box 1 is provided with a supporting leg 31 for stably supporting the entire water pump device.

[0042] The above describes the present application and its embodiments, which are not limited, and the embodiments shown in the drawings are only one of the embodiments of the present application, and the actual structure is not limited thereto. In general, if a person skilled in the art is inspired thereby, without departing from the creative purpose of the present application, without creative design, similar structural modes and embodiments of the technical solutions can be designed, which should belong to the protection scope of the present application.

Claims

1. A speed-increasing multi-gear variable speed water pump, characterized by: Including speed-increasing gearbox (1) and pump body (2); The pump body (2) includes connecting flange (3) and pump chamber (4), one side of the connecting flange (3) is detachably connected with the shell of speed-increasing gearbox (1), and the opposite side is detachably connected with the side wall of pump chamber (4); The speed-increasing gearbox (1) includes box (5), water pump main shaft (6), spline main shaft (7) and shift switch (8), the water pump main shaft (6) penetrates the box (5) and extends to the inside of the pump chamber (4) through the connecting flange (3) at one end;The spline main shaft (7) is rotatably connected with the side wall of the box (5) at one end, and extends to the outside of the box (5) at the other end to connect an external power device;The spline main shaft (7) is provided with a drive gear (9) and a shift sleeve (10), the drive gear (9) is sleeved on the spline main shaft (7) and is rotatably connected therewith, the shift sleeve (10) is sleeved on the spline main shaft (7) and is slidably connected therewith, the shift switch (8) is arranged on the box (5) and extends into the box (5) to drive the shift sleeve to slide along the spline main shaft (7), the water pump main shaft (6) is provided with a driven gear (11) engaged with the drive gear (9) for transmission, and the diameter of the driven gear (11) is smaller than that of the driving gear.

2. The speed-increasing multi-gear variable speed water pump according to claim 1, characterized in that: The driving gear includes a first driving gear (12) and a second driving gear (13), the first driving gear (12) and the second driving gear (13) are different in diameter, and the shift sleeve (10) is arranged between the first driving gear (12) and the second driving gear (13);The driven gear (11) includes a first driven gear (14) and a second driven gear (15), the first driven gear (14) is engaged with the first driving gear for transmission, and the second driven gear (15) is engaged with the second driving gear (13) for transmission.

3. The step-up multi-gear variable speed water pump according to claim 2, characterized in that: The shift sleeve (10) is provided with shift detents (16) on both sides, the first driving gear (12) and the second driving gear (13) are provided with driven detents (17) on the inner sides, and the shift detents (16) and the driven detents (17) are in contact or separated.

4. The speed-increasing multi-gear variable speed water pump according to claim 3, characterized in that: The shift switch (8) includes a switch shaft (18), a handle (19) and a shifting lever (20), the switch shaft (18) is rotatably connected with the box (5), the handle (19) is fixed on one side of the switch shaft (18) inside the box (5), the shift sleeve (10) is provided with a shifting groove (21) on the surface, one end of the shifting lever (20) is connected with one side of the switch shaft (18) inside the box (5) and is eccentrically fixed, the other end of the shifting lever (20) extends into the shifting groove (21) to drive the shift sleeve (10) to slide.

5. The step-up multi-gear variable speed water pump according to claim 4, characterized in that: The other end of the water pump main shaft (6) extends to the outside of the box (5) and is provided with a driving structure (22).

6. A step-up multi-gear variable speed water pump according to claim 5, characterized in that: The pump chamber (4) is provided with a main turbine (23) inside, the main turbine (23) is sleeved on the water pump main shaft (6), the water pump main shaft (6) extends to the water inlet (29) of the pump chamber (4) at the end, and the water pump main shaft (6) is provided with an auxiliary turbine (24) at the end.

7. The step-up multi-gear variable speed water pump of claim 6, wherein: The connecting flange (3) is internally provided with a circulating water channel (25) communicating with the pump chamber (4), and the outer wall of the box (5) is provided with a cooling water groove (26) communicating with the circulating water channel (25).

8. The step-up multi-gear variable speed water pump of claim 7, wherein: The circulating water channel (25) comprises an upper water channel (27) and a lower water channel (28), the upper water channel (27) is arranged on the inner wall of the upper side of the connecting flange (3), and the lower water channel (28) is arranged on the inner wall of the lower side of the connecting flange (3); the water pump main shaft (6) is rotatably connected with the box (5) through a bearing, and the cooling water groove (26) surrounds the outside of the bearing on the side of the box (5) close to the connecting flange (3).

9. The step-up multi-stage variable speed pump of claim 8, wherein: The pump chamber (4) is provided with a water inlet (29) on the outer side of the water pump main shaft (6) in the axial direction, and is provided with a water outlet (30) on the outer side of the main turbine (23) in the circumferential direction.

10. The step-up multi-gear variable speed water pump of claim 1, wherein: The speed increasing gear box (1) is provided with supporting legs (31) at the bottom.

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