Integrated motor water pump

Abstract

The utility model relates to the technical field of water pump structures, in particular to an integrated motor water pump which comprises a pump body, a gear box, a motor and a pump shaft, the pump body, the gear box and the motor are sequentially connected, an impeller set is arranged in the pump body and arranged on the side close to a water inlet, and the pump shaft is arranged on the side close to the water inlet. The gear box, the pump body and the motor are arranged on the same axis, the motor is connected with the pump shaft, the motor drives the impeller set to rotate through the pump shaft, the pump shaft sequentially penetrates through the pump body and the gear box, one end of the pump shaft is clamped with the motor, and the other end of the pump shaft is clamped with the gear box. The driving shaft and the impeller shaft are integrally arranged, a complex gear transmission structure is replaced, the connecting complexity is reduced, the energy loss in the transmission process is reduced, the transmission efficiency is improved, the synchronism is enhanced, and the service life of the pump is prolonged. And the space occupancy rate is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of water pump structures, in particular to an integrated motor water pump. Background Art

[0002] A water pump is a machine that transports liquids or increases the pressure of liquids. It transfers the mechanical energy of the prime mover or other external energy to the liquid to increase the energy of the liquid. It is mainly used to transport liquids including water, oil, acid and alkali liquids, emulsions, suspensions and liquid metals, etc. It can also transport liquids, gas mixtures and liquids containing suspended solids.

[0003] The Chinese utility model patent with patent application number CN202220714667.8 specifically discloses a centrifugal pump, including a pump body, an impeller group installed in the pump body, and a drive module for driving the impeller group to operate. The impeller group includes two groups of impeller blades installed back to back. A speed sensor for monitoring the speed of the impeller blades is installed on the drive module. The two groups of impeller blades are installed back to back and the speed sensor is set at the drive module to monitor the speed of the impeller blades. This solves the problem of impeller blade speed monitoring and is more convenient than directly setting the speed sensor at the impeller blade, and has less impact on the operation of the impeller blade.

[0004] Although the patent can detect the rotation speed of the impeller blades, the existence of the gear transmission group will bring some disadvantages. More connections and interfaces will increase potential failure points. For example, gear wear, poor engagement, loose connection parts, etc. may cause failures and affect the normal operation of the equipment. Poor synchronization of actions may lead to reduced energy transfer efficiency, unstable operation, etc., which in turn affect the performance of the centrifugal pump. In addition, the larger structural design often makes the centrifugal pump less compact in space utilization and occupies more space, which may cause inconvenience in some scenarios with high space requirements.

[0005] Therefore, there is an urgent need for an integrated motor water pump that can optimize the transmission structure, improve transmission efficiency, synchronization and reliability, and improve integration. Utility Model Content

[0006] In view of the above problems, the utility model provides an integrated motor water pump, which replaces the complex gear transmission structure by integrating the drive shaft and the impeller shaft, thereby greatly simplifying the transmission path. This not only reduces the number of interfaces and connectors, thereby significantly reducing the potential risk points of failure, but also eliminates the wear and bite problems that may occur in the gear transmission. The stability and reliability of the system are improved, and the integrated design also improves synchronization, making energy transfer more direct and efficient. The operation of the pump will be smoother and more coordinated, and the pump body, gear box and motor are arranged on the same axis, which effectively utilizes the space and greatly reduces the overall space occupancy of the equipment.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] An integrated motor water pump, comprising:

[0009] Pump body, gear box, motor and pump shaft;

[0010] The pump body, gear box and motor are connected in sequence, an impeller group is arranged in the pump body, and the impeller group is arranged on the side close to the water inlet;

[0011] The gear box, the pump body and the motor are arranged on the same axis;

[0012] The motor is connected to the pump shaft, and the motor drives the impeller assembly to rotate through the pump shaft;

[0013] The pump shaft is sequentially inserted into the pump body and the gear box, one end of the pump shaft is engaged with the motor, the other end of the pump shaft is sleeved with the impeller group, and the motor drives the impeller group to rotate through the pump shaft.

[0014] As an improvement, the impeller group includes a first impeller and a second impeller, the first impeller and the second impeller are both sleeved on the pump shaft, the first impeller and the second impeller have the same structure, the first impeller and the second impeller are arranged in parallel, a guide vane is arranged between the first impeller and the second impeller, and the guide vane is sleeved on the first impeller.

[0015] As an improvement, the impeller assembly further includes a shaft sleeve, which is arranged between the first impeller and the second impeller, with two ends of the shaft sleeve being arranged to abut against the first impeller and the second impeller, and the shaft sleeve being sleeved on the pump shaft.

[0016] As an improvement, a sealing member is further provided in the pump body, the sealing member is arranged in contact with the second impeller, and the sealing member is sleeved on the pump shaft.

[0017] As an improvement, bearings are provided on both sides of the gear box, and the bearings are sleeved on the pump shaft, and the bearings play a role of fixing and limiting the pump shaft.

[0018] As an improvement, a bracket is provided at the bottom of the gearbox, a box cover is provided at the top of the gearbox, a sealing cover is provided on one side of the gearbox, the sealing cover is connected to the bracket and the box cover by fastening bolts, and a bearing flange is provided on the other side of the gearbox, and the bearing flange is connected to the box cover and the motor.

[0019] As an improvement, a refueling port is provided on the top surface of the gear box, a breathable cover is provided on the refueling port, and an oil viewing window is provided on the side wall of the gear box.

[0020] As an improvement, one end of the pump shaft sleeve provided with the impeller assembly is provided with a fastener, and the fastener fixes the impeller assembly to the pump shaft.

[0021] The beneficial effects of the utility model are:

[0022] (1) The utility model replaces the original gear transmission group by integrating the drive shaft and the impeller shaft, avoiding the complex structure and numerous connecting parts of the gear transmission group, thereby greatly reducing potential failure points and improving the reliability of the equipment. Without the gap and delay that may be caused by the gear transmission, the drive shaft and the impeller shaft can achieve better synchronous action, making the water pump run more accurately. The removal of the gear transmission group makes the overall structure simpler, which not only saves space but also reduces the cost of manufacturing and maintenance;

[0023] (2) The utility model arranges the pump body, gear box and motor on the same central axis. Such a layout makes the overall equipment occupy less space, which is more conducive to installation and use in an environment with limited space, thereby improving space utilization. In addition, being on the same central axis can reduce energy loss during transmission, making power transmission more direct and efficient, ensuring that the power of the motor can be converted into the working efficiency of the pump body to the maximum extent. In addition, the components being on the same axis can effectively reduce vibration and noise caused by misalignment, making the equipment run more smoothly and reliably, and reducing the probability of failure.

[0024] In summary, the utility model has the advantages of good transmission effect, compact structure, etc., and is particularly suitable for the technical field of water pump structures. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the cross-sectional structure of the integrated motor water pump of the utility model;

[0026] Figure 2 This is a schematic diagram of the cross-sectional structure of the pump body of the utility model;

[0027] Figure 3This is a schematic diagram of the cross-sectional structure of the impeller assembly of the utility model;

[0028] Figure 4 This is a schematic diagram of the cross-sectional structure of the gearbox of the utility model. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0031] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0032] Example:

[0033] like Figures 1 to 4 As shown, an integrated motor water pump comprises:

[0034] Pump body 1, gear box 2, motor 3 and pump shaft 4;

[0035] The pump body 1, the gear box 2 and the motor 3 are connected in sequence. The pump body 1 is provided with an impeller group 11, which is arranged on the side close to the water inlet 10 and is responsible for promoting the flow of liquid. The top of the pump body 1 is also provided with a water outlet 13;

[0036] The gear box 2, the pump body 1 and the motor 3 are arranged on the same axis, which helps to improve the structural compactness and transmission efficiency of the entire device and reduce energy loss and space occupation;

[0037] The motor 3 is connected to the pump shaft 4, and the motor 3 drives the impeller assembly 11 to rotate through the pump shaft 4;

[0038] The pump shaft 4 is sequentially inserted into the pump body 1 and the gear box 2 , one end of the pump shaft 4 is engaged with the motor 3 , and the other end of the pump shaft 4 is sleeved with the impeller group 11 , and the motor 3 drives the impeller group 11 to rotate through the pump shaft 4 .

[0039] Among them, the impeller group 11 includes a first impeller 111 and a second impeller 112, the first impeller 111 and the second impeller 112 are both sleeved on the pump shaft 4, the first impeller 111 and the second impeller 112 rotate together with the pump shaft 4, the first impeller 111 and the second impeller 112 have the same structure, the first impeller 111 and the second impeller 112 are arranged in parallel, ensuring the consistency and coordination of their performance during operation, a guide vane 113 is arranged between the first impeller 111 and the second impeller 112, and the guide vane 113 is sleeved on the first impeller 111.

[0040] Furthermore, the guide vane 113 can guide the flow direction of the liquid so that the liquid passes through the impeller group more smoothly, and on the other hand, it may adjust and optimize the energy of the liquid to a certain extent. The guide vane 113 is closely matched with the first impeller 111.

[0041] In addition, the impeller group 11 also includes a sleeve 114, and the sleeve 114 is arranged between the first impeller 111 and the second impeller 112. The two ends of the sleeve 114 are arranged to abut against the first impeller 111 and the second impeller 112, and the sleeve 114 is sleeved on the pump shaft 4. On the one hand, the sleeve 114 can play a certain positioning and fixing role to ensure the stability of the distance between the first impeller 111 and the second impeller 112. On the other hand, it may help to reduce the vibration and shaking of the first impeller 111 and the second impeller 112 during operation, thereby improving the running stability of the entire impeller group 11.

[0042] Furthermore, a seal 12 is also provided in the pump body 1, and the seal 12 is arranged in contact with the second impeller 112. The seal 12 can form an effective seal between the pump shaft 4 and the pump body 1, and can effectively prevent liquid from leaking around the pump shaft 4, thereby ensuring that the liquid in the pump body 1 can flow according to the designed path, avoiding unnecessary loss of liquid and impact on the surrounding environment. The seal 12 is sleeved on the pump shaft 4, ensuring a close fit with the pump shaft 4 and maintaining the effectiveness of the seal.

[0043] In addition, bearings 21 are provided on both sides of the gear box 2, and the bearings 21 are sleeved on the pump shaft 4. The bearings 21 play a fixing and limiting role for the pump shaft 4. The bearings 21 provide important support and fixing for the pump shaft 4. The bearings 21 limit excessive movement of the pump shaft 4 in the axial and radial directions, ensuring that the pump shaft 4 can rotate stably without shaking, eccentricity and other adverse conditions. This fixed limiting role is crucial to maintaining the normal operation of the entire pump device, and it ensures the accurate fit and transmission efficiency between the pump shaft 4 and the impeller group 11.

[0044] Furthermore, a bracket 22 is provided at the bottom of the gear box 2, and the bracket 22 mainly plays the role of supporting and stabilizing the gear box 2 to ensure that the gear box 2 can maintain a stable position during operation. A box cover 23 is provided at the top of the gear box 2, and the box cover 23 can play a certain protective role for the gear box 2. A sealing cover 24 is provided on one side of the gear box 2, and the sealing cover 24 is connected to the bracket 22 and the box cover 23 by fastening bolts 241. A bearing flange 25 is provided on the other side of the gear box 2, and the bearing flange 25 is connected to the sealing cover 23 and the motor 3, which makes the overall structure of the gear box 2 more firm and stable.

[0045] Furthermore, a refueling port 26 is provided on the top surface of the gear box 2, and a breathable cover 27 is provided on the refueling port 26. An oil viewing window 28 is provided on the side wall of the gear box 2. The refueling port 26 provides a channel for adding working media such as lubricating oil to the gear box 2, which is convenient for regular maintenance and servicing, ensuring that the bearings 21 and other components can be well lubricated, reduce wear and extend the service life. On the one hand, the breathable cover 27 allows the air in the gear box to be exchanged with the outside world to avoid excessive pressure changes in the box due to factors such as oil temperature changes. On the other hand, it can play a certain role in dust and moisture prevention to prevent impurities from entering the gear box. The oil viewing window 28 allows the user to intuitively observe the liquid level of the lubricating oil in the gear box, so as to promptly detect insufficient oil and replenish it. At the same time, it can also preliminarily judge whether the working state of the gear box is normal by observing the state of the oil.

[0046] In addition, a fastener 41 is provided at one end of the pump shaft 4 on which the impeller group 11 is sleeved, and the fastener 41 fixes the impeller group 11 on the pump shaft 4. When the pump shaft 4 rotates at high speed, the impeller group 11 will not loosen or slip, thereby ensuring the connection stability between the impeller group 11 and the pump shaft 4.

[0047] Working process: When the water inlet 10 is immersed in water, the motor 3 is turned on and starts working as a power source. It transmits power to the pump shaft 4, causing the pump shaft 4 to start rotating. As the pump shaft 4 rotates, the impeller group 11 closely connected thereto also rotates at high speed. The rotation of the impeller group 11 generates centrifugal force, so that a local vacuum chamber is formed in the area near the impeller group 11 in the pump body 1. This vacuum chamber generates negative pressure, thereby sucking external liquid from the water inlet 10 into the pump body 1. Then, under the continuous push of the impeller group 11, the sucked liquid is accelerated and gains energy, and then is pushed to the water outlet. From the water inlet 10 to the pump body 1 and then to the water outlet, the liquid is transported under the action of the impeller group 11 and the pump shaft 4.

[0048] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An integrated motor water pump, characterized in that: include: Pump body (1), gear box (2), motor (3) and pump shaft (4); The pump body (1), the gear box (2) and the motor (3) are connected in sequence, and an impeller group (11) is arranged in the pump body (1), and the impeller group (11) is arranged on a side close to the water inlet (10); The gear box (2), the pump body (1) and the motor (3) are arranged on the same axis; The motor (3) is connected to the pump shaft (4), and the motor (3) drives the impeller assembly (11) to rotate via the pump shaft (4); The pump shaft (4) is sequentially inserted into the pump body (1) and the gear box (2); one end of the pump shaft (4) is engaged with the motor (3); the other end of the pump shaft (4) is sleeved with the impeller group (11); and the motor (3) drives the impeller group (11) to rotate via the pump shaft (4).

2. The integrated motor water pump according to claim 1, characterized in that: The impeller assembly (11) comprises a first impeller (111) and a second impeller (112); the first impeller (111) and the second impeller (112) are both sleeved on the pump shaft (4); the first impeller (111) and the second impeller (112) have the same structure; the first impeller (111) and the second impeller (112) are arranged in parallel; a guide vane (113) is arranged between the first impeller (111) and the second impeller (112); and the guide vane (113) is sleeved on the first impeller (111).

3. The integrated motor water pump according to claim 2, characterized in that: The impeller assembly (11) further comprises a shaft sleeve (114), wherein the shaft sleeve (114) is arranged between the first impeller (111) and the second impeller (112), two ends of the shaft sleeve (114) are arranged to abut against the first impeller (111) and the second impeller (112), and the shaft sleeve (114) is sleeved on the pump shaft (4).

4. The integrated motor water pump according to claim 3, characterized in that: A sealing member (12) is also provided in the pump body (1), the sealing member (12) being arranged in contact with the second impeller (112), and the sealing member (12) being sleeved on the pump shaft (4).

5. The integrated motor water pump according to claim 1, characterized in that: Bearings (21) are provided on both sides of the gear box (2); the bearings (21) are sleeved on the pump shaft (4); and the bearings (21) play a role in fixing and limiting the pump shaft (4).

6. The integrated motor water pump according to claim 5, characterized in that: A bracket (22) is arranged at the bottom of the gear box (2), a box cover (23) is arranged at the top of the gear box (2), a cover (24) is arranged on one side of the gear box (2), the cover (24) is connected to the bracket (22) and the box cover (23) by means of fastening bolts (241), and a bearing flange (25) is arranged on the other side of the gear box (2), the bearing flange (25) is connected to the box cover (23) and the motor (3).

7. The integrated motor water pump according to claim 6, characterized in that: The top surface of the gear box (2) is provided with a refueling port (26), a breathable cover (27) is provided on the refueling port (26), and the side wall of the gear box (2) is provided with an oil viewing window (28).

8. The integrated motor water pump according to claim 1, characterized in that: One end of the pump shaft (4) on which the impeller assembly (11) is sleeved is provided with a fastener (41), and the fastener (41) fixes the impeller assembly (11) to the pump shaft (4).

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