Wear-resistant structure of high-efficiency heating water pump

Abstract

The utility model discloses a wear-resistant structure of a high-efficiency heating water pump, which relates to the technical field of heating water pumps and comprises a heating water pump volute component, a connecting ring, an impeller rotor component and a rotor sliding bearing. A motor internal assembly is arranged in the heating water pump volute assembly, a rotor sliding bearing is installed in the impeller rotor assembly, a mandrel body is installed in the rotor sliding bearing, and an inner hole groove is formed in the rotor sliding bearing. The wear-resistant structure of the high-efficiency heating water pump is provided with the inner hole groove, heat is dissipated through water in the inner hole of the bearing, and due to the fact that the inner hole of the bearing and the outer diameter of the mandrel are in mutual friction, residues with abrasion can be discharged into a pipeline through the inner hole groove, the inner hole groove has the functions of lubrication, cooling and pollution discharge, and mechanical loss is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to heating water pump technical field, concretely is a kind of high-efficiency heating water pump's wear-resistant structure. BACKGROUND

[0002] Heating water pump is a kind of equipment that can heat low-temperature water to the required temperature, mainly used in heating and hot water and other fields. According to different working principles, heating water pump can be divided into air source heat pump, ground source heat pump and water source heat pump, etc. The working principle of heating water pump is mainly through heat conversion technology, to convert low-temperature heat energy in the environment into high-temperature heat energy. Heating water pump is widely used in heating, hot water and swimming pool temperature control, etc. fields, especially in northern areas, it has become the main means to solve the problem of winter heating.

[0003] At present, there is no lubrication and sewage groove between the inner hole of sliding bearing and the mandrel on the market, which leads to serious mechanical wear and jamming phenomenon. And there is no pressure balance structure, the mechanical loss is large, and the efficiency is low. Our company designs a groove between the inner hole of sliding bearing and the mandrel, which is beneficial to lubrication, cooling and sewage, and achieves the purpose of small pressure difference, reduces mechanical loss and improves mechanical efficiency.

[0004] Therefore, we propose a kind of high-efficiency heating water pump's wear-resistant structure, in order to solve the problem proposed in the above. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of high-efficiency heating water pump's wear-resistant structure, to solve the problem that the inner hole of sliding bearing and the mandrel between the current market are not added lubrication and sewage groove, which leads to serious mechanical wear and jamming phenomenon.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of high-efficiency heating water pump's wear-resistant structure, including heating water pump volute assembly, connecting ring, impeller rotor assembly and rotor sliding bearing, the inside of heating water pump volute assembly is installed with impeller rotor assembly, the inside of heating water pump volute assembly is provided with motor internal component, the inside of impeller rotor assembly is installed with rotor sliding bearing, and the inside of rotor sliding bearing is installed with mandrel body, and inner hole groove is set up on rotor sliding bearing.

[0007] Preferably, the lower portion of the heating water pump volute assembly is provided with a connecting ring, and a positioning hole is formed in the connecting ring. A reinforcing block is installed between the connecting ring and the heating water pump volute assembly.

[0008] The above structure design improves the installation stability of the heating water pump volute assembly, so that the heating water pump volute assembly is not easy to deform or damage under stress, thereby prolonging the service life of the heating water pump volute assembly.

[0009] Preferably, the connecting ring and the heating water pump volute assembly are integrally formed, and multiple positioning holes are provided, which correspond to the slots on the motor housing to which the heating water pump volute assembly is connected.

[0010] With the above structural design, the positioning hole facilitates the connection between the heating water pump volute assembly and the motor housing, thereby facilitating the disassembly and assembly of the heating water pump volute assembly and the motor housing, and making it easier to maintain the heating water pump.

[0011] Preferably, the impeller rotor assembly has an outer impeller groove and an inner impeller groove, and there are three outer impeller grooves and three inner impeller grooves.

[0012] With the above structural design, the heat generated by the friction of the impeller rotor assembly during rotation can be discharged through the outer and inner grooves of the impeller, and at the same time, it can carry away the excrement generated by friction, which can lubricate, cool and remove dirt from the impeller rotor assembly, thereby improving the service life of the impeller rotor assembly.

[0013] Preferably, the impeller rotor assembly is equipped with a wear-resistant gasket assembly, the impeller rotor assembly is provided with an impeller cover, and the impeller cover is provided with a thrust gasket, and the thrust gasket is provided with a shock-absorbing pad.

[0014] With the above structural design, the axial force of the impeller rotor assembly flattens the damping pad under the action of the damping pad, thereby achieving a seal between the thrust washer and the impeller cover, preventing leakage and improving working efficiency.

[0015] Preferably, the thrust washer is stationary, while the thrust washer rotates relative to the impeller rotor assembly.

[0016] With the above structural design, the thrust washer and the impeller rotor assembly generate frictional force.

[0017] Preferably, the internal components of the motor are provided with a motor housing, and the motor housing is connected to the heating water pump volute assembly.

[0018] With the above structural design, the internal components of the motor provide power support for the heating water pump.

[0019] Preferably, the internal components of the motor are provided with an isolation sleeve, and a volute sealing ring is provided below the heating water pump volute assembly, and the volute sealing ring has a circular structure design.

[0020] With the above structural design, the volute sealing ring plays a sealing role, improving the sealing performance of the heating water pump volute assembly during installation, thereby ensuring the normal operation of the heating water pump and avoiding malfunctions during operation.

[0021] Preferably, the rotor sliding bearing has an inner bore, and the inner bore grooves are located in the inner bore, with three inner bore grooves provided.

[0022] With the above structural design, heat is dissipated through the inner hole of the bearing. Since there is mutual friction between the inner hole of the bearing and the outer diameter of the spindle, there are wear residues. These residues can be discharged into the pipeline through the inner hole groove. The inner hole groove plays the functions of lubrication, cooling and sewage discharge, thus improving mechanical wear.

[0023] Preferably, the outer part of the mandrel body is the mandrel outer diameter, and the bearing inner hole is rotated while the mandrel outer diameter is stationary.

[0024] With the above structural design, the pressure difference between the upper and lower surfaces of the rotor is small. The inner holes of the three bearings are equivalent to pressure relief grooves, which can release the pressure on the lower surface of the impeller, resulting in a small pressure difference between the upper and lower surfaces, a small axial force, reduced friction of the thrust washer, and increased mechanical efficiency.

[0025] Compared with the prior art, the beneficial effects of this utility model are: the wear-resistant structure of this high-efficiency heating water pump:

[0026] 1. Equipped with an outer impeller groove and an inner impeller groove, the heat generated by the friction at the end face of the impeller rotor assembly during rotation can be discharged through the outer and inner impeller grooves. At the same time, it can carry away the excrement generated by friction, which can lubricate, cool and remove dirt from the impeller rotor assembly, thereby improving the service life of the impeller rotor assembly. Under the action of the damping pad, the axial force of the impeller rotor assembly flattens the damping pad, thereby achieving a seal between the thrust washer and the impeller cover, preventing leakage and improving working efficiency.

[0027] 2. The bearing is equipped with an inner groove for water cooling. Since there is friction between the inner bore of the bearing and the outer diameter of the spindle, there are wear residues. These residues can be discharged into the pipeline through the inner groove. The inner groove serves the functions of lubrication, cooling, and sewage discharge, thus improving mechanical efficiency. The pressure difference between the upper and lower surfaces of the rotor is small. The three bearing inner holes act as pressure relief grooves, which can release the pressure on the lower surface of the impeller, resulting in a small pressure difference between the upper and lower surfaces, low axial force, reduced friction of the thrust washer, and increased mechanical efficiency. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the exploded structure of this utility model;

[0029] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0030] Figure 3 This is a top view of the impeller rotor assembly of this utility model;

[0031] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle;

[0032] Figure 5 This is a schematic diagram of the connection structure between the rotor sliding bearing and the spindle body of this utility model.

[0033] In the diagram: 1. Water pump volute assembly; 2. Connecting ring; 3. Positioning hole; 4. Impeller rotor assembly; 5. Impeller outer groove; 6. Impeller inner groove; 7. Wear-resistant gasket assembly; 8. Motor internal assembly; 9. Volute sealing ring; 10. Rotor sliding bearing; 11. Bearing inner hole; 12. Inner groove; 13. Mandrel body; 14. Mandrel outer diameter. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] Please see Figures 1-5This utility model provides a technical solution: a wear-resistant structure for a high-efficiency heating water pump, comprising a heating water pump volute assembly 1, a connecting ring 2, a positioning hole 3, an impeller rotor assembly 4, an impeller outer groove 5, an impeller inner groove 6, a wear-resistant gasket assembly 7, an internal motor assembly 8, a volute sealing ring 9, a rotor sliding bearing 10, a bearing inner hole 11, an inner groove 12, a spindle body 13, and a spindle outer diameter 14. A connecting ring 2 is provided below the heating water pump volute assembly 1, and a positioning hole 3 is provided on the connecting ring 2. A reinforcing block is installed between the connecting ring 2 and the heating water pump volute assembly 1 to improve the installation stability of the heating water pump volute assembly 1, making it less prone to deformation or damage under stress, thereby improving the service life of the heating water pump volute assembly 1. The connecting ring 2 is integral with the heating water pump volute assembly 1. The heating water pump volute assembly 1 is formed with multiple positioning holes 3, which correspond to the slots on the motor housing to which it is connected. The positioning holes 3 facilitate the connection between the heating water pump volute assembly 1 and the motor housing, making it easy to disassemble and assemble the heating water pump volute assembly 1 and the motor housing, and facilitating the maintenance of the heating water pump. Inside the heating water pump volute assembly 1, an impeller rotor assembly 4 is installed. The impeller rotor assembly 4 has an outer impeller groove 5 and an inner impeller groove 6, and there are three of each. During the rotation of the impeller rotor assembly 4, the heat generated by the friction at its end face can be discharged through the outer impeller groove 5 and the inner impeller groove 6. At the same time, it can carry away the excrement generated by friction, which can lubricate, cool and remove dirt from the impeller rotor assembly 4, thereby improving the service life of the impeller rotor assembly 4.

[0036] Wear-resistant gasket assembly 7 is installed on impeller rotor assembly 4. Impeller upper cover is provided on impeller rotor assembly 4, and thrust gasket is provided on impeller upper cover. Shock-absorbing pad is provided on thrust gasket. Under the action of shock-absorbing pad, the axial force of impeller rotor assembly 4 flattens the shock-absorbing pad, thereby achieving a seal between thrust gasket and impeller upper cover, preventing leakage and improving working efficiency. Thrust gasket is stationary, while impeller rotor assembly 4 rotates. Friction is generated between thrust gasket and impeller rotor assembly 4, heating the interior of water pump volute assembly 1. The pump is equipped with an internal motor assembly 8, which is surrounded by a motor housing. The motor housing is connected to the heating water pump volute assembly 1. The internal motor assembly 8 provides power support for the heating water pump. An isolation sleeve is installed inside the internal motor assembly 8. A volute sealing ring 9 with a circular structure is installed below the heating water pump volute assembly 1. The volute sealing ring 9 plays a sealing role, improving the sealing performance of the heating water pump volute assembly 1 during installation, thereby ensuring the normal operation of the heating water pump and preventing malfunctions during operation. A rotor sliding bearing 10 is installed inside the impeller rotor assembly 4, and a spindle body 13 is installed inside the rotor sliding bearing 10. The rotor sliding bearing 10 has an inner groove 12, and an inner bearing hole 11 is provided inside the rotor sliding bearing 10. The inner groove 12 is located in the inner bearing hole 11. There are three inner grooves 12, which are used for heat dissipation through the inner bearing hole 11. Since there is mutual friction between the inner bearing hole 11 and the outer diameter 14 of the spindle, there are wear residues. These residues can be discharged through the inner grooves 12. Inside the pipeline, the inner groove 12 serves the functions of lubrication, cooling, and sewage discharge, which improves mechanical wear. The outer part of the spindle body 13 is the outer diameter 14 of the spindle. The bearing inner hole 11 is rotating, while the bearing inner hole 11 and the spindle outer diameter 14 are stationary. The pressure difference between the upper and lower surfaces of the rotor is small. The three bearing inner holes 11 are equivalent to pressure relief grooves, which can release the pressure on the lower surface of the impeller, resulting in a small pressure difference between the upper and lower surfaces, small axial force, reduced friction of the thrust washer, and increased mechanical efficiency.

[0037] Working principle: When using the wear-resistant structure of this high-efficiency heating water pump, firstly, during the rotation of the impeller rotor assembly 4, the heat generated by the friction of its end face can be discharged through the outer groove 5 and the inner groove 6 of the impeller, and at the same time, it can carry away the excrement generated by friction, which can lubricate, cool and remove dirt from the impeller rotor assembly 4, thereby improving the service life of the impeller rotor assembly 4. Under the action of the damping pad, the axial force of the impeller rotor assembly 4 flattens the damping pad, thereby achieving the seal between the thrust washer and the impeller cover, without leakage, and improving working efficiency.

[0038] Residue can be discharged into the pipeline through the inner groove 12. The inner groove 12 serves the functions of lubrication, cooling, and sewage discharge, thus improving mechanical wear. The small pressure difference between the upper and lower surfaces of the rotor, along with the pressure relief grooves in the three bearing inner holes 11, allows the pressure on the lower surface of the impeller to be released, resulting in a small pressure difference between the upper and lower surfaces, low axial force, reduced friction of the thrust washer, and increased mechanical efficiency. This completes a series of tasks. Content not described in detail in this specification is prior art known to those skilled in the art.

[0039] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A high efficiency heating water pump wear resistant construction comprising a heating water pump volute assembly (1), a connecting ring (2), an impeller rotor assembly (4) and a rotor plain bearing (10), characterized in that: The inside of the heating water pump volute assembly (1) is internally mounted with an impeller rotor assembly (4), the inside of the heating water pump volute assembly (1) is provided with a motor internal assembly (8), the inside of the impeller rotor assembly (4) is internally mounted with a rotor sliding bearing (10), and the inside of the rotor sliding bearing (10) is internally mounted with a mandrel body (13), and the rotor sliding bearing (10) is provided with an inner hole groove (12).

2. The high efficiency heating water pump wear resistant structure according to claim 1, characterized in that: The lower part of the heating water pump volute assembly (1) is provided with a connecting ring (2), and the connecting ring (2) is provided with a positioning hole (3), and the connecting ring (2) and the heating water pump volute assembly (1) are mounted with a reinforcing block.

3. The high efficiency heating water pump wear resistant structure according to claim 2, characterized in that: The connecting ring (2) and the heating water pump volute assembly (1) are integrally formed, the positioning hole (3) is provided with a plurality of positioning holes (3), and the positioning hole (3) corresponds to the hole groove on the motor shell connected with the heating water pump volute assembly (1).

4. The high efficiency heating water pump wear resistant structure of claim 1, wherein: The impeller rotor assembly (4) is provided with an impeller outer groove (5) and an impeller inner groove (6), and the impeller outer groove (5) and the impeller inner groove (6) are respectively provided with three.

5. The high efficiency heating water pump wear resistant structure of claim 1, wherein: The impeller rotor assembly (4) is provided with a wear-resistant gasket assembly (7), the impeller rotor assembly (4) is provided with an impeller upper cover, and the impeller upper cover is provided with a thrust washer, and the thrust washer is provided with a damping pad.

6. The high efficiency heating water pump wear structure of claim 5, wherein: The thrust washer is static, and the thrust washer and the impeller rotor assembly (4) are rotatable.

7. The high efficiency heating water pump wear structure of claim 1, wherein: The outside of the motor internal assembly (8) is provided with a motor shell, and the motor shell is connected between the heating water pump volute assembly (1).

8. The high efficiency heating water pump wear structure of claim 1, wherein: The inside of the motor internal assembly (8) is provided with a spacer sleeve, the lower part of the heating water pump volute assembly (1) is provided with a volute sealing ring (9), and the volute sealing ring (9) is designed in a circular structure.

9. The high efficiency heating water pump wear structure of claim 1, wherein: The inside of the rotor sliding bearing (10) is provided with a bearing inner hole (11), and the inner hole groove (12) is located in the bearing inner hole (11), and the inner hole groove (12) is provided with three.

10. The high efficiency heating water pump wear structure of claim 1, wherein: The outside of the mandrel body (13) is a mandrel outer diameter (14), the bearing inner hole (11) and the mandrel outer diameter (14) are matched, the bearing inner hole (11) is rotatable, and the bearing inner hole (11) and the mandrel outer diameter (14) are static.

Images