High-strength wear-resistant pump body and pump cover

Abstract

The utility model discloses a high-strength wear-resistant pump body pump cover, which relates to the technical field of pumps and comprises a pump cover, a bearing embedded in the center of the pump cover, a rotating shaft coaxially inserted in the center of the bearing, a portal frame arranged on one side of the pump cover, a spline sleeve transversely and rotatably inserted in the portal frame, and a cooling fan coaxially arranged at one end of the spline sleeve far away from the pump cover. A spline rod is slidably inserted in the end, close to the pump cover, of the spline sleeve, and a connecting transmission assembly for driving the cooling fan to rotate is arranged at the end, away from the cooling fan, of the spline rod. According to the utility model, the TiC coating is arranged, TiC has a very strong wear-resistant effect, and the TiC coating is used for carrying out wear-resistant protection on the interior of the wear-resistant sheath, so that the effect of reducing wear is achieved in the positioning protection process in the rotating process of the rotating shaft.

Description

Technical Field

[0001] The utility model relates to the technical field of pumps, in particular to a high-strength and wear-resistant pump body and pump cover. Background Art

[0002] A pump is a machine that transports fluids or pressurizes fluids. 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 such as water, oil, acid and alkali liquids, emulsions, suspensions and liquid metals. According to the working principle, it is divided into three types: positive displacement pumps, dynamic pumps and other types of pumps. The pump cover is an important component of the pump body used to fix the end of the output shaft and seal the pump body. There is a gap at the connection port between the pump cover and the pump body, which is easily immersed in liquid and accelerated rust, causing great inconvenience to later maintenance.

[0003] After searching CN 212928312U Chinese utility model patent, a wear-resistant centrifugal pump cover is disclosed. The wear-resistant centrifugal pump cover is provided with an electric fan blade, which connects the electric fan blade to an external power supply, so that the electric fan blade starts to operate. Because holes are opened on the surface of the strong support plate, the wind generated by the electric fan blade flows downward, thereby achieving heat dissipation for the heat-generating motor.

[0004] However, after research by the applicant, it was found that the scheme had the following problems. First, the scheme used a fan of an external power supply for heat dissipation, which required additional power supply, cables and other components, so the production and use costs were relatively high. Secondly, the scheme used a wear-resistant plate to improve the wear resistance of the centrifugal pump cover, but in actual use, we found that the design structure could not effectively achieve the expected wear-resistant effect. In response to this, we proposed a high-strength and wear-resistant pump body cover. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes a high-strength and wear-resistant pump body and pump cover.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A high-strength and wear-resistant pump body pump cover comprises a pump cover, a bearing is embedded in the center of the pump cover, a rotating shaft is coaxially inserted in the center of the bearing, a gantry is provided on one side of the pump cover, a spline sleeve is inserted in the gantry for transverse rotation, a cooling fan is coaxially provided at the end of the spline sleeve away from the pump cover, a spline rod is slidably inserted at the end of the spline sleeve close to the pump cover, and a connecting transmission component for driving the cooling fan to rotate is provided at the end of the spline rod away from the cooling fan.

[0008] Through the above technical solution: by using the spline rod and the spline sleeve in combination, rotating shafts of different lengths can be synchronously adapted without customizing the length of the rotating shaft, thereby improving the versatility of the pump cover.

[0009] Preferably, the connecting transmission assembly includes a turntable coaxially arranged on the end of the spline rod away from the cooling fan, and mounting seats are symmetrically arranged on the outer circumference of the turntable. The mounting seats are vertically threaded with screws, and the ends of the screws close to the rotating shaft are rotatably connected to clamps, which are abutted against the outer circumference of the rotating shaft, and the ends of the screws away from the rotating shaft are coaxially provided with knobs.

[0010] Through the above technical solution: the rotation of the screw is used to drive the clamp to move and then clamp the outside of the rotating shaft. When the pump body is operating, the cooling fan is synchronously driven and can be quickly adapted to rotating shafts of different diameters. Compared with the existing technology, this heat dissipation method can quickly dissipate heat without an external power supply, which greatly reduces the production and use costs of the equipment.

[0011] Preferably, a cover shell is provided at the center of one side of the pump cover close to the gantry, and a plurality of exhaust holes are provided in a circular array at equal distances on the outer peripheral surface of one end of the cover shell close to the pump cover.

[0012] Through the above technical solution: the exhaust holes are used to discharge the airflow for heat exchange, so that the end of the airflow enters and the end is output. Compared with the existing technology, while quickly cooling down, it is more in line with the laws of physical gas movement, so the heat dissipation effect is better.

[0013] Furthermore, a filter screen is provided at one end of the casing away from the pump cover.

[0014] Through the above technical solution: the gas is filtered using a filter to prevent impurities from entering the bearing and causing wear.

[0015] Furthermore, a wear-resistant sleeve is embedded in the center of the pump cover, the bearing is embedded in the wear-resistant sleeve, the outer peripheral surface of the rotating shaft and the inner ring surface of the wear-resistant sleeve are slidably opposed, and the inner ring surface of the wear-resistant sleeve is provided with a TiC coating.

[0016] Through the above technical solution: Since the TiC coating has extremely strong wear resistance, the TiC coating is used to provide wear resistance protection for the inside of the wear-resistant sleeve, and it can also reduce wear during the positioning protection process of the rotating shaft during rotation.

[0017] Preferably, sliding rods are symmetrically provided on one side of the clamp close to the mounting seat, and the sliding rods slide through the mounting seat on the adjacent side.

[0018] Through the above technical solution: the movement direction of the clamp is positioned by utilizing the sliding of the slide rod to prevent the clamp from deviating when the screw rod rotates.

[0019] The beneficial effects of the utility model are:

[0020] 1. Through the connection transmission assembly, the screw is rotated to drive the clamp to move and then clamp the outside of the rotating shaft. When the pump body is running, the cooling fan is synchronously driven, and it can be quickly adapted to rotating shafts of different diameters. Compared with the existing technology, this heat dissipation method can quickly dissipate heat without an external power supply, which greatly reduces the production and use costs of the equipment;

[0021] 2. The TiC coating has a very strong wear-resistant effect. The TiC coating is used to provide wear-resistant protection for the inside of the wear-resistant sleeve. It can also reduce wear during the positioning and protection process of the rotating shaft.

[0022] 3. The heat exchange airflow is discharged through the exhaust holes so that the airflow enters at one end and outputs at the other end. Compared with the existing technology, it is more in line with the laws of physical gas movement while rapidly cooling down, so the heat dissipation effect is better.

[0023] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the utility model more obvious and easy to understand, the following preferred embodiments are specifically cited and described in detail with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a three-dimensional structural schematic diagram of the high-strength and wear-resistant pump body and pump cover proposed by the utility model;

[0025] Figure 2 This is a schematic diagram of the side cross-sectional structure of the high-strength and wear-resistant pump body and pump cover proposed by the utility model;

[0026] Figure 3 The high-strength wear-resistant pump body and pump cover proposed by the utility model Figure 2 A schematic diagram of the enlarged local structure at A;

[0027] Figure 4 This is a schematic diagram of the structure of the connecting transmission assembly of the high-strength and wear-resistant pump body and pump cover proposed by the utility model.

[0028] In the figure: 1. Pump cover; 2. Rotating shaft; 3. Bearing; 4. Gantry; 5. Splined sleeve; 6. Cooling fan; 7. Splined rod; 8. Turntable; 9. Mounting seat; 10. Screw; 11. Hoop; 12. Sliding rod; 13. Knob; 14. Cover; 15. Exhaust hole; 16. Filter; 17. Wear-resistant sleeve. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0030] Example 1, reference Figures 1 to 4 A high-strength and wear-resistant pump body pump cover comprises a pump cover 1, a bearing 3 is embedded in the center of the pump cover 1, a rotating shaft 2 is coaxially inserted in the center of the bearing 3, a gantry 4 is provided on one side of the pump cover 1, a spline sleeve 5 is inserted for transverse rotation of the gantry 4, a cooling fan 6 is coaxially provided at the end of the spline sleeve 5 away from the pump cover 1, a spline rod 7 is slidably inserted at the end of the spline sleeve 5 close to the pump cover 1, a connecting transmission component for driving the cooling fan 6 to rotate is provided at the end of the spline rod 7 away from the cooling fan 6, and the spline rod 7 is used to drive the cooling fan 6 to rotate. The spline rod 7 is used in conjunction with the spline sleeve 5 to synchronously adapt to rotating shafts 2 of different lengths without customizing the length of the rotating shaft 2, thereby improving the versatility of the pump cover 1.

[0031] For details, please refer to Figure 2 The connecting transmission component includes a turntable 8 coaxially arranged at the end of the spline rod 7 away from the heat dissipation fan 6, and the outer circumference of the turntable 8 is symmetrically provided with mounting seats 9. The mounting seats 9 are all vertically threaded with screws 10, and the ends of the screws 10 close to the rotating shaft 2 are rotatably connected with clamps 11, and the clamps 11 are all against the outer circumference of the rotating shaft 2. The ends of the screws 10 away from the rotating shaft 2 are coaxially provided with knobs 13. The rotation of the screw 10 drives the clamp 11 to move and then clamp the outside of the rotating shaft 2. When the pump body is operating, the heat dissipation fan 6 is synchronously driven, and can be quickly adapted according to the rotating shaft 2 of different diameters. Compared with the prior art, this heat dissipation method can quickly dissipate heat without an external power supply, which greatly reduces the production and use costs of the equipment.

[0032] For details, please refer to Figure 1 A cover 14 is provided at the center of one side of the pump cover 1 close to the gantry 4. A plurality of exhaust holes 15 are provided in an equidistant circular array on the outer peripheral surface of one end of the cover 1 close to the pump cover 1. The exhaust holes 15 are used to discharge the airflow for heat exchange so that the airflow enters at one end and exits at the other end. Compared with the prior art, it is more in line with the laws of physical gas movement while rapidly cooling down, so the heat dissipation effect is better.

[0033] For details, please refer to Figure 1 A filter screen 16 is provided at one end of the housing 14 away from the pump cover 1, and the filter screen 16 is used to filter the gas to prevent impurities from entering the interior of the bearing 3 and causing wear.

[0034] For details, please refer to Figure 3A wear-resistant sleeve 17 is embedded in the center of the pump cover 1, and the bearing 3 is embedded in the wear-resistant sleeve 17. The outer peripheral surface of the rotating shaft 2 slides against the inner ring surface of the wear-resistant sleeve 17. The inner ring surface of the wear-resistant sleeve 17 is provided with a TiC coating. Since the TiC coating has an extremely strong wear-resistant effect, the TiC coating is used to perform wear-resistant protection on the inside of the wear-resistant sleeve 17. In the process of positioning and protecting the rotating shaft 2 during rotation, it can also reduce wear.

[0035] For details, please refer to Figure 4 The hoop 11 is symmetrically provided with a slide bar 12 on one side close to the mounting seat 9. The slide bar 12 slides through the mounting seat 9 on the adjacent side. The movement direction of the hoop 11 is positioned by sliding the slide bar 12 to prevent the screw 10 from deviating when the screw 10 rotates.

[0036] When the above scheme is in use, the heat dissipation fan 6 is driven by the rotating shaft 2 to rotate, and the external gas is sucked into the cover 14 to dissipate the heat of the bearing 3. The airflow after heat exchange is discharged through the exhaust hole 15, so as to continuously dissipate heat and reduce the temperature of the bearing 3 and the pump cover 1, thereby improving the wear resistance of the pump cover 1. When the pump body is working, the TiC coating has a very strong wear-resistant effect. The TiC coating is used to perform wear-resistant protection on the inside of the wear-resistant sleeve 17. In the process of positioning and protecting the rotating shaft 2 during rotation, it can also reduce wear.

[0037] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A high-strength and wear-resistant pump body and pump cover, comprising a pump cover (1), characterized in that: A bearing (3) is embedded in the center of the pump cover (1), a rotating shaft (2) is coaxially inserted in the center of the bearing (3), a gantry (4) is provided on one side of the pump cover (1), a spline sleeve (5) is inserted in the gantry (4) for transverse rotation, a cooling fan (6) is coaxially provided at one end of the spline sleeve (5) away from the pump cover (1), a spline rod (7) is slidably inserted at one end of the spline sleeve (5) close to the pump cover (1), and a connecting transmission component for driving the cooling fan (6) to rotate is provided at one end of the spline rod (7) away from the cooling fan (6).

2. The high-strength and wear-resistant pump body and pump cover according to claim 1 is characterized in that: The connecting transmission assembly comprises a turntable (8) coaxially arranged on the end of the spline rod (7) away from the heat dissipation fan (6); a mounting seat (9) is symmetrically arranged on the outer circumference of the turntable (8); a screw rod (10) is vertically threadedly inserted into the mounting seat (9); a clamp (11) is rotatably connected to the end of the screw rod (10) close to the rotating shaft (2); the clamp (11) is abutted against the outer circumference of the rotating shaft (2); and a knob (13) is coaxially arranged on the end of the screw rod (10) away from the rotating shaft (2).

3. The high-strength and wear-resistant pump body and pump cover according to claim 2 is characterized in that: A cover shell (14) is provided at the center of one side of the pump cover (1) close to the gantry (4), and a plurality of exhaust holes (15) are provided in a circular array at equal distances on the outer peripheral surface of one end of the cover shell (14) close to the pump cover (1).

4. The high-strength wear-resistant pump body pump cover according to claim 3 is characterized in that: A filter screen (16) is provided at one end of the casing (14) away from the pump cover (1).

5. The high-strength and wear-resistant pump body and pump cover according to claim 4 is characterized in that: A wear-resistant sleeve (17) is embedded in the center of the pump cover (1), the bearing (3) is embedded in the wear-resistant sleeve (17), the outer peripheral surface of the rotating shaft (2) and the inner ring surface of the wear-resistant sleeve (17) are slidably opposed, and the inner ring surface of the wear-resistant sleeve (17) is provided with a TiC coating.

6. The high-strength wear-resistant pump body pump cover according to claim 5, characterized in that: The clamp (11) is symmetrically provided with sliding rods (12) on one side close to the mounting seat (9), and the sliding rods (12) are slidably passed through the mounting seat (9) on the adjacent side.

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