An automobile cooling water pump assembly

Abstract

The application discloses a kind of automobile cooling water pump assembly, including upper shell and lower shell, the top annular of the inner chamber of the upper shell is provided with chute, the inner chamber of the chute is inserted with rotary seal shell, the inner surface of the rotary seal shell is fixedly connected with shaft, the lower end of the outer surface of the shaft is provided with impeller, and the bottom of the upper shell is fixedly connected with first fixed ring.The transmission shaft, the shaft, the rotary seal shell and the impeller are integrated structure, people first drive the rotary seal shell into the inner chamber of chute with shaft, the shaft is up, the top of rotary seal shell is contacted with the top of inner chamber of chute, and the outside of rotary seal shell is contacted with ball, then the lower shell is embedded in the inner surface of first fixed ring by second fixed ring, to achieve the purpose of convenient assembly, solve the problem that existing water pump assembly does not have the function of convenient assembly, cannot meet the use demand of people.

Description

TECHNICAL FIELD

[0001] The present application relates to cooling water pump technical field, specifically to a kind of automobile cooling water pump assembly. BACKGROUND

[0002] Cooling water pump is suitable for conveying clear water or liquid with physical and chemical properties in high-pressure operation system, such as high-rise building water supply, boiler feed water, heating and refrigeration cycle, bathroom cold and warm water circulation booster and equipment matching, fire-fighting system and pipeline booster. Hard alloy seal of different materials ensures no leakage in conveying different media.

[0003] For example, the invention (publication number: 201220522046.6) discloses an automobile cooling water pump assembly, comprising: pump body, shaft connecting bearing, water seal, impeller and flange, the shaft connecting bearing passes through the pump body, the water seal is pressed between the pump body and the shaft connecting bearing, the impeller is fixedly installed at one end of the shaft connecting bearing, and the flange is installed at the other end of the shaft connecting bearing; the shaft connecting bearing is gap fitted with the pump body, and the shaft connecting bearing is bolted with the pump body. The inventor found that the prior art has the following problems in the process of implementing the present application: the existing cooling water pump does not have the function of convenient assembly, which cannot meet the use requirements of people. Therefore, we propose an automobile cooling water pump assembly. SUMMARY

[0004] The cooling water pump of the present application for solving the above problems is characterized by having the advantage of convenient assembly, which solves the problem that the existing water pump assembly does not have the function of convenient assembly, which cannot meet the use requirements of people.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme: an automobile cooling water pump assembly, comprising an upper shell and a lower shell, an annular groove is formed in the top of the inner cavity of the upper shell, a rotating sealing shell is inserted into the inner cavity of the groove, a rotating shaft is fixedly connected to the inner surface of the rotating sealing shell, an impeller is arranged at the lower end of the outer surface of the rotating shaft, a first fixing ring is fixedly connected to the bottom of the upper shell, a second fixing ring is fixedly connected to the top of the lower shell, a rotating limiting seat is fixedly connected to the middle end of the bottom of the inner cavity of the lower shell, and the bottom of the rotating shaft is rotatably connected to the inner surface of the rotating limiting seat.

[0006] Preferably, the inner surfaces of the left and right ends of the first and second fixing rings are inserted with fasteners, and the fasteners are symmetrically arranged.

[0007] Preferably, a sealing flange is arranged between the first and second fixing rings, and the sealing flange is circular.

[0008] Preferably, the sealing flange comprises a base layer, a carbon steel layer is arranged on the top of the base layer, and a tungsten alloy layer is arranged on the bottom of the base layer.

[0009] Preferably, the thickness of the carbon steel layer and the thickness of the tungsten alloy layer are the same, and the thickness of the carbon steel layer is 0.33-0.35 times the thickness of the base layer.

[0010] Preferably, the top of the rotating shaft is fixedly connected with a transmission shaft, and a transmission groove is formed in the outer surface of the transmission shaft.

[0011] Preferably, grooves are formed in the outer sides of the inner cavities of the sliding grooves, and springs are arranged in the inner cavities of the grooves.

[0012] Preferably, balls are arranged in the inner sides of the springs, and the balls are symmetrically arranged.

[0013] Preferably, a water outlet is arranged at the lower end of the left side of the upper shell, and a water inlet is arranged at the lower end of the right side of the upper shell.

[0014] Preferably, the water outlet and the water inlet are circular, and the water outlet and the water inlet are symmetrically arranged.

[0015] Compared with the prior art, the present application has the following advantages:

[0016] 1、In the present application, through the arrangement of the assembly structure, first, the rotating sealing shell is inserted into the inner cavity of the sliding groove by the rotating shaft, then the second fixed ring is embedded into the inner surface of the first fixed ring by the lower shell, the bottom of the rotating shaft is inserted into the inner surface of the rotating limiting seat, and the first fixed ring and the second fixed ring are fixedly connected by the fastener, so that the purpose of convenient assembly is achieved.

[0017] 2、In the present application, through the arrangement of the sealing structure, the carbon steel layer and the tungsten alloy layer included in the sealing flange both have very good corrosion prevention effect. DETAILED DESCRIPTION

[0018] Figure 1 is a structural schematic diagram of the present application;

[0019] Figure 2 is a partial structure sectional view of the present application;

[0020] Figure 3 is a partial enlarged structure schematic diagram of A in the present application; Figure 2

[0021] Figure 4 is a sectional structure schematic diagram of the sealing flange of the present application.

[0022] ​In the figure: 1, the upper shell; 2, the water outlet; 3, the lower shell; 4, the first fixed ring; 5, the fastener; 6, the water inlet; 7, the transmission shaft; 8, the rotating shaft; 9, the rotating sealing shell; 10, the impeller; 11, the second fixed ring; 12, the rotating limiting seat; 13, the sealing flange; 131, the base layer; 132, the carbon steel layer; 133, the tungsten alloy layer; 14, the ball; 15, the spring; 16, the groove; 17, the sliding groove. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0024] Please refer to Figure 1 , Figure 2 and Figure 3 , the present application: a car cooling water pump assembly, including the upper shell 1 and the lower shell 3, the lower end of the left side of the upper shell 1 is provided with the water outlet 2, the lower end of the right side of the upper shell 1 is provided with the water inlet 6, the water outlet 2 and the water inlet 6 are circular, and the water outlet 2 and the water inlet 6 are symmetrically arranged, the top of the inner cavity of the upper shell 1 is annularly provided with the sliding groove 17, the outer side of the inner cavity of the sliding groove 17 is provided with the groove 16, and the inner cavity of the groove 16 is provided with the spring 15, the inner side of the spring 15 is provided with the ball 14, and the ball 14 is symmetrically arranged, the inner cavity of the sliding groove 17 is inserted with the rotating sealing shell 9, the inner surface of the rotating sealing shell 9 is fixedly connected with the rotating shaft 8, the top of the rotating shaft 8 is fixedly connected with the transmission shaft 7, and the outer surface of the transmission shaft 7 is provided with the transmission groove, the lower end of the outer surface of the rotating shaft 8 is provided with the impeller 10, the bottom of the upper shell 1 is fixedly connected with the first fixed ring 4, the inner surfaces of the left and right ends of the first fixed ring 4 and the second fixed ring 11 are inserted with the fastener 5, and the fastener 5 is symmetrically arranged, the top of the lower shell 3 is fixedly connected with the second fixed ring 11, the middle end of the bottom of the inner cavity of the lower shell 3 is fixedly connected with the rotating limiting seat 12, and the bottom of the rotating shaft 8 is rotatably connected to the inner surface of the rotating limiting seat 12.

[0025] The transmission shaft 7, the rotating shaft 8, the rotating sealing shell 9 and the impeller 10 are integrated structures, first, the rotating shaft 8 drives the rotating sealing shell 9 to be inserted into the inner cavity of the sliding groove 17, the rotating shaft 8 is upwardly pressed, the top of the rotating sealing shell 9 is in contact with the top of the inner cavity of the sliding groove 17, the outer side of the rotating sealing shell 9 is in contact with the ball 14, then the lower shell body 3 is embedded into the inner surface of the first fixing ring 4 through the second fixing ring 11, the sealing flange 13 is arranged on the first fixing ring 4 and the second fixing ring 11, and the first fixing ring 4 and the second fixing ring 11 are fixed through the fastener 5, so that the bottom of the rotating shaft 8 is automatically inserted into the inner surface of the rotating limiting seat 12, and the convenient assembly is achieved.

[0026] Please refer to Figure 1 and Figure 4 The sealing flange 13 is arranged between the first fixing ring 4 and the second fixing ring 11, the sealing flange 13 is circular, the sealing flange 13 comprises a base layer 131, the top of the base layer 131 is provided with a carbon steel layer 132, the bottom of the base layer 131 is provided with a tungsten alloy layer 133, the thickness of the carbon steel layer 132 is the same as the thickness of the tungsten alloy layer 133, and the thickness of the carbon steel layer 132 is 0.33-0.35 times the thickness of the base layer 131.

[0027] The carbon steel layer 132 and the tungsten alloy layer 133 of the sealing flange 13 have very good corrosion resistance.

[0028] The working principle of the present application is that the transmission shaft 7, the rotating shaft 8, the rotating sealing shell 9 and the impeller 10 are integrated structures, first, the rotating shaft 8 drives the rotating sealing shell 9 to be inserted into the inner cavity of the sliding groove 17, the rotating shaft 8 is upwardly pressed, the top of the rotating sealing shell 9 is in contact with the top of the inner cavity of the sliding groove 17, the outer side of the rotating sealing shell 9 is in contact with the ball 14, then the lower shell body 3 is embedded into the inner surface of the first fixing ring 4 through the second fixing ring 11, the sealing flange 13 is arranged on the first fixing ring 4 and the second fixing ring 11, and the first fixing ring 4 and the second fixing ring 11 are fixed through the fastener 5, so that the bottom of the rotating shaft 8 is automatically inserted into the inner surface of the rotating limiting seat 12, and the convenient assembly is achieved through the cooperation of the above structure, the problem that the existing water pump assembly does not have the function of convenient assembly and cannot meet the use requirements of people is solved.

[0029] Although the embodiments of the present application have been shown and described, it should be understood by those ordinary skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An automotive cooling water pump assembly, comprising an upper housing (1) and a lower housing (3), characterized in that: The top of the inner cavity of the upper housing (1) is provided with a sliding groove (17) in an annular shape. A rotating sealing shell (9) is inserted into the inner cavity of the sliding groove (17). A rotating shaft (8) is fixedly connected to the inner surface of the rotating sealing shell (9). An impeller (10) is provided at the lower end of the outer surface of the rotating shaft (8). A first fixing ring (4) is fixedly connected to the bottom of the upper housing (1). A second fixing ring (11) is fixedly connected to the top of the lower housing (3). A rotating limiting seat (12) is fixedly connected to the middle end of the bottom of the inner cavity of the lower housing (3). The bottom of the rotating shaft (8) is rotatably connected to the inner surface of the rotating limiting seat (12). A sealing flange (13) is provided between the first fixing ring (4) and the second fixing ring (11). The sealing flange (13) is circular. The sealing flange (13) includes a base layer (131), a carbon steel layer (132) is provided on the top of the base layer (131), and a tungsten alloy layer (133) is provided on the bottom of the base layer (131). The thickness of the carbon steel layer (132) is the same as the thickness of the tungsten alloy layer (133), and the thickness of the carbon steel layer (132) is 0.33-0.35 times the thickness of the base layer (131). The top of the rotating shaft (8) is fixedly connected to a drive shaft (7), and a drive groove is provided on the outer surface of the drive shaft (7). Grooves (16) are provided on the outer side of the inner cavity of the slide groove (17), and springs (15) are provided in the inner cavity of the grooves (16). Balls (14) are provided on the inner side of the springs (15), and the balls (14) are symmetrically arranged.

2. The automotive cooling water pump assembly according to claim 1, characterized in that: Fasteners (5) are inserted into the inner surfaces of both ends of the first fixing ring (4) and the second fixing ring (11), and the fasteners (5) are arranged symmetrically.

3. The automotive cooling water pump assembly according to claim 1, characterized in that: The lower left side of the upper shell (1) is provided with a water outlet (2), and the lower right side of the upper shell (1) is provided with a water inlet (6).

4. The automotive cooling water pump assembly according to claim 3, characterized in that: Both the outlet (2) and the inlet (6) are circular, and the outlet (2) and the inlet (6) are symmetrically arranged.

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