CN217783613U

CN217783613U - Closed impeller type three-speed electromagnetic clutch water pump with flow guide function

Info

Publication number: CN217783613U
Application number: CN202221744465.4U
Authority: CN
Inventors: 冉景旭; 田战胜; 兰棠洁; 余超; 向本杰
Original assignee: Guangxi Yuchai Machinery Co Ltd
Current assignee: Guangxi Yuchai Machinery Co Ltd
Priority date: 2022-07-07
Filing date: 2022-07-07
Publication date: 2022-11-11
Anticipated expiration: 2032-07-07

Abstract

The application provides a closed impeller type three-speed electromagnetic clutch water pump with water conservancy diversion function belongs to automobile engine technical field. This closed impeller type three-speed electromagnetic clutch water pump with water conservancy diversion function, including water pump assembly and electromagnetic clutch assembly, water pump assembly includes the fixed axle, the pump body and closed impeller, electromagnetic clutch assembly includes belt pulley, iron core component, solenoid spare, clutch disc spare, locking dish and flexible drive spare, solenoid spare includes low-speed coil and high-speed coil, clutch disc spare includes low-speed clutch disc and high-speed clutch disc, and the closed impeller that this application can realize the water pump switches between three rotational speed, realizes the control of water pump operating speed, guarantees that the engine is not overheated, through the design of guide plate, and the damage that the impact force when can to a great extent avoid the coolant liquid to go out the pump body caused has certain energy saving and emission reduction's effect.

Description

Closed impeller type three-speed electromagnetic clutch water pump with flow guide function

Technical Field

The application relates to the field of automobile engines, in particular to a closed impeller type three-speed electromagnetic clutch water pump with a flow guide function.

Background

The water pump is a key part of a water-cooled engine cooling system and plays a significant role. In an automobile engine, a water pump is mostly a centrifugal pump, the pressure of cooling liquid is improved through the rotation of the water pump, and the cooling liquid is forced to flow in the engine in a circulating mode.

Traditional water pump design, the export department of pump often is the right angle shape, though can satisfy the demand, but the right angle limit can produce the impact consumption, causes certain loss, and traditional water pump mostly uses the rotational speed operation of a fixed speed ratio, is difficult to adjust the rotational speed of water pump, causes water pump flow to be difficult to adjust, is difficult to realize carrying out the cooling of different intensity to the engine, and water pump inefficiency, the energy consumption is great, not enough energy-concerving and environment-protective.

SUMMERY OF THE UTILITY MODEL

In order to make up for the above deficiencies, the application provides a closed impeller type three-speed electromagnetic clutch water pump with a flow guiding function, and aims to solve the problems in the background art.

The embodiment of the application provides a closed impeller type three-speed electromagnetic clutch water pump with water conservancy diversion function, including water pump assembly and electromagnetic clutch assembly.

The water pump assembly comprises a fixed shaft, a pump body and a closed impeller, the pump body is rotatably arranged on the fixed shaft, the closed impeller is fixedly arranged at one end of the fixed shaft and is located in a cavity of the pump body, an annular volute chamber is formed between the closed impeller and the inner wall of the pump body, and a guide plate is obliquely arranged at a liquid outlet of the volute chamber.

Electromagnetic clutch subassembly includes belt pulley, iron core component, electromagnetic coil spare, clutch disc spare, locking dish and flexible driving piece, the belt pulley rotate cup joint in the fixed axle middle part, the fixed cup of iron core component connect in the pump body outside, electromagnetic coil spare includes low-speed coil and high-speed coil, low-speed coil with high-speed coil all inlays to be located in the iron core component, the locking dish install in the fixed axle is kept away from the one end of the pump body, clutch disc spare includes low-speed clutch disc and high-speed clutch disc, low-speed clutch disc with high-speed clutch disc all through the shell fragment set up in the locking dish is close to one side of iron core component, low-speed clutch disc with low-speed coil sets up relatively, high-speed clutch disc with high-speed coil sets up relatively, flexible driving piece install in the belt pulley with between the locking dish.

In the implementation process, magnetic attraction matching of the permanent magnet and the magnetic conduction soft plate is used for realizing a first speed flexible drive, the closed impeller is driven to operate at an extremely low rotating speed, the power consumption can be reduced, meanwhile, a quick warming effect can be achieved, the low-speed coil is powered on, the low-speed coil enables the low-speed clutch disc to be attracted with the belt pulley, the belt pulley is driven by the low-speed clutch disc, the locking disc and the fixing shaft to drive the closed impeller to work at a higher rotating speed, the heat dissipation requirement of the engine under most conditions can be met, the high-speed coil is powered on, the high-speed clutch disc is enabled to be attached to the belt pulley, the belt pulley drives the closed impeller to rotate at the same speed through the high-speed clutch disc, quick cooling liquid circulation is carried out, the closed impeller of the water pump is switched among three rotating speeds, the control of the working rotating speed of the water pump is achieved, the engine is guaranteed not to be overheated, through the design of the guide plate, damage caused by impact force when the cooling liquid is avoided to a great extent, and certain energy saving and emission reduction effects are achieved.

In a specific embodiment, flexible driving piece includes permanent magnet, magnetic conduction soft board and fixed disk, the permanent magnet inlays to be located the locking dish is kept away from the outer lane position of fixed axle, the fixed disk is fixed set up in belt pulley one side, the magnetic conduction soft board inlays to be located in the fixed disk, the permanent magnet with the magnetic conduction soft board relative and gap arrangement in position.

In the implementation process, the belt pulley rotates to drive the fixed disc to rotate, so that an eddy current magnetic field is generated between the magnetic conduction soft plate and the permanent magnet, and the magnetic field drives the locking disc to rotate at an extremely low rotating speed, so that the closed impeller is driven to operate at an extremely low rotating speed through the fixed shaft, a quick warming effect can be achieved, and the driving comfort is improved.

In a specific embodiment, an annular groove is formed on one side of the belt pulley, and a gap exists between the iron core element and the inner wall of the annular groove.

In the implementation process, the distance between the electromagnetic coil part and the clutch disc part is reduced, the phenomenon that the attraction between the belt pulley and the clutch disc part is unstable due to small electromagnetic attraction is avoided, and meanwhile, the structure is more compact.

In a specific embodiment, a plurality of magnetic conduction grooves are arranged on one side end face of the belt pulley close to the clutch disc part, and the plurality of magnetic conduction grooves are arranged from inside to outside along the radial direction of the belt pulley.

In the implementation process, the magnetic conduction groove is used for guiding the magnetic circuit, so that the electromagnetic attraction force is increased.

In a specific embodiment, one side of the belt pulley, which is far away from the iron core element, is concave, a cover plate is arranged on one side cover of the belt pulley, and the locking disk is positioned between the belt pulley and the cover plate.

In the implementation process, the concave part of the belt pulley is used for installing the locking disc and the clutch disc piece, and the cover plate can play a role in sealing and protecting.

In a specific embodiment, the fixed shaft sleeve is provided with a first bearing, and the outer ring of the first bearing is in interference fit with the inner wall of the pump body.

In a specific embodiment, a water seal is arranged on the fixed shaft and is positioned between the closed impeller and the first bearing.

At above-mentioned realization in-process, the water seal provides sealed effect when rotatory along with the fixed axle, prevents the coolant liquid flow direction first bearing, avoids the emergence that the coolant liquid leaked.

In a specific embodiment, a flange plate is fixed at one end of the fixed shaft far away from the closed impeller, and the locking plate is fixedly sleeved on the flange plate.

In the implementation process, the locking plate and the fixed shaft can be connected more tightly and firmly by the arrangement of the flange plate.

In a specific embodiment, the middle sleeve of the fixed shaft is provided with a second bearing, and the outer ring of the second bearing is in interference fit with the inner wall of the belt pulley.

In a specific embodiment, the baffle is tongue-shaped, and the baffle extends along the tangential direction of the liquid outlet of the vortex chamber.

In the implementation process, the guide plate can enable the guide plate and the water pump assembly to be in smooth transition connection, so that the cooling liquid can smoothly flow into an engine water channel, the impact loss is reduced, and the efficiency of the water pump assembly is improved.

Drawings

In order to more clearly explain the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that for those skilled in the art, other related drawings can be obtained from these drawings without inventive effort.

Fig. 1 is a schematic structural diagram of a closed impeller type three-speed electromagnetic clutch water pump with a flow guide function according to an embodiment of the present application;

fig. 2 is a schematic structural diagram of a water pump assembly according to an embodiment of the present disclosure from a first perspective;

fig. 3 is a schematic structural diagram of a water pump assembly provided in an embodiment of the present application at a second viewing angle;

fig. 4 is a schematic structural diagram of an electromagnetic clutch assembly according to an embodiment of the present application.

In the figure: 10-a water pump assembly; 110-a fixed shaft; 111-a first bearing; 112-water seal; 113-a flange plate; 120-a pump body; 130-shrouded impeller; 140-a baffle; 150-vortex chamber; 160-a second bearing; 20-an electromagnetic clutch assembly; 210-a pulley; 211-an annular groove; 212-magnetically permeable slots; 213-cover plate; 220-a core element; 230-a solenoid member; 231-low speed coil; 232-high speed coil; 240-clutch disc; 241-low speed clutch disc; 242-high speed clutch disc; 243-elastic sheet; 250-a locking disk; 260-a flexible drive member; 261-a permanent magnet; 262-magnetic soft board; 263-fixed disk.

Detailed Description

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.

To make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of 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, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making creative efforts shall fall within the protection scope of the present application.

Thus, the following detailed description of the embodiments of the present application, as presented in the figures, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and thus should not be considered limiting.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the recitation of a first feature "on" or "under" a second feature may include the recitation of the first and second features being in direct contact, and may also include the recitation of the first and second features not being in direct contact, but being in contact with another feature between them. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Referring to fig. 1-4, the present application provides a closed impeller type three-speed electromagnetic clutch water pump with a flow guiding function, which includes a water pump assembly 10 and an electromagnetic clutch assembly 20.

Referring to fig. 2 and 3, the water pump assembly 10 includes a fixed shaft 110, a pump body 120 and a closed impeller 130, the pump body 120 is rotatably disposed on the fixed shaft 110, specifically, the fixed shaft 110 is sleeved with a first bearing 111, an inner ring of the first bearing 111 is fixed to the fixed shaft 110 through a key pin, an outer ring of the first bearing 111 is in interference fit with an inner wall of the pump body 120, so as to reduce friction resistance and driving loss, the closed impeller 130 is fixedly disposed at one end of the fixed shaft 110, the closed impeller 130 is bolted to the fixed shaft 110, the closed impeller 130 is disposed in a cavity of the pump body 120, a water seal 112 is disposed on the fixed shaft 110, the water seal 112 is disposed between the closed impeller 130 and the first bearing 111, the water seal 112 provides a sealing effect while rotating along with the fixed shaft 110, so as to prevent a coolant from flowing to the first bearing 111, thereby preventing leakage of the coolant, an annular volute 150 is formed between the closed impeller 130 and the inner wall of the pump body 120, a baffle 140 is obliquely disposed at a liquid outlet of the volute 150, the baffle 140 is integrally formed at a position of the volute 150, and is integrally formed at a liquid outlet of the volute 150, so as to increase efficiency of the water pump assembly, and to increase a smooth connection between the volute 140, and increase a smooth flow loss of the engine.

Referring to fig. 4, the electromagnetic clutch assembly 20 includes a pulley 210, an iron core element 220, a solenoid element 230, a clutch disc 240, a locking disc 250 and a flexible driving member 260, the pulley 210 is rotatably sleeved on the middle portion of the fixed shaft 110, specifically, the middle portion of the fixed shaft 110 is sleeved with a second bearing 160, an outer ring of the second bearing 160 is in interference fit with an inner wall of the pulley 210, the iron core element 220 is fixedly sleeved on an outer side of the pump body 120, the iron core element 220 is bolted or welded to the pump body 120, the solenoid element 230 includes a low-speed coil 231 and a high-speed coil 232, the low-speed coil 231 and the high-speed coil 232 are both embedded in the iron core element 220, the high-speed coil 232 is disposed on an outer side of the low-speed coil 231, the locking disc 250 is mounted on an end of the fixed shaft 110 away from the pump body 120, specifically, the flange 113 is fixed on an end of the fixed shaft 110 away from the closed impeller 130, the locking disc 250 and the locking disc 110 can be more tightly connected, the locking disc 250 is fixedly sleeved on the flange 113 by the flange 113, the clutch disc 240 includes a low-speed clutch disc 241 and a high-speed clutch disc 242, both the low-speed clutch disc 241 and the high-speed clutch disc 242 are disposed on a side of the iron core element 242 close to the locking disc 242.

When the magnetic belt pulley 210 is specifically arranged, the annular groove 211 is formed in one side of the belt pulley 210, a gap exists between the iron core element 220 and the inner wall of the annular groove 211, the distance between the electromagnetic coil element 230 and the clutch disc element 240 is reduced, and the situation that electromagnetic attraction is small is avoided, so that the belt pulley 210 and the clutch disc element 240 are unstable in attraction is caused, meanwhile, the structure can be more compact, a plurality of magnetic conduction grooves 212 are formed in one side end face, close to the clutch disc element 240, of the belt pulley 210, the plurality of magnetic conduction grooves 212 are arranged from inside to outside along the radial direction of the belt pulley 210, the magnetic conduction grooves 212 are used for guiding a magnetic circuit, so that the electromagnetic attraction is increased, one side, away from the iron core element 220, of the belt pulley 210 is in a concave shape, a cover plate 213 is arranged on one side cover of the belt pulley 210, the locking plate 250 is located between the belt pulley 210 and the cover plate 213, the concave portion of the belt pulley 210 is used for installing the locking plate 250 and the clutch disc element 240, and the cover plate 213 can play a role in sealing protection.

In the present application, the flexible driving member 260 is installed between the belt pulley 210 and the locking disk 250, specifically, the flexible driving member 260 includes a permanent magnet 261, a magnetic conductive soft plate 262 and a fixed disk 263, the permanent magnet 261 is embedded in the outer ring position of the locking disk 250 far away from the fixed shaft 110, the fixed disk 263 is fixedly disposed on one side of the belt pulley 210, the fixed disk 263 is bolted or welded to the belt pulley 210, the magnetic conductive soft plate 262 is embedded in the fixed disk 263, the permanent magnet 261 is opposite to the magnetic conductive soft plate 262 and is arranged in a gap, when the engine is just started, the water temperature is low, the electromagnetic coil member 230 is not energized, the clutch disk member 240 is separated from the belt pulley 210, the belt pulley 210 rotates to drive the fixed disk 263 to rotate, so that an eddy current magnetic field is generated between the magnetic conductive soft plate 262 and the permanent magnet 261, the magnetic field drives the locking disk 250 to rotate at an extremely low rotation speed, thereby driving the closed impeller 130 to operate at an extremely low rotation speed through the fixed shaft 110, which can play a quick warm-up effect and improve driving comfort.

The working principle of the closed impeller type three-speed electromagnetic clutch water pump with the flow guide function is as follows: when the engine runs at low load and low rotating speed, the low-speed coil 231 is electrified, the low-speed coil 231 generates magnetic force on the low-speed clutch plate 241 opposite to the low-speed coil 231, the low-speed coil 231 is enabled to approach the low-speed coil 231 and attract the belt pulley 210 to rotate together under the action of the elastic force of the elastic sheet 243, the belt pulley 210 drives the locking plate 250 to rotate through the low-speed clutch plate 241, the fixed shaft 110 drives the closed impeller 130 to work at a high rotating speed, and the heat dissipation requirement of the engine under most conditions can be met, when the vehicle is heavily loaded or climbs, the water temperature of the engine can continuously rise, when the temperature rises to a set value, the high-speed coil 232 is electrified, the high-speed clutch disc 242 is attached to the belt pulley 210 through strong magnetism, the belt pulley 210 drives the closed impeller 130 to rotate at the same speed through the high-speed clutch disc 242 to perform rapid cooling liquid circulation, so that the closed impeller 130 of the water pump is switched among three rotating speeds, the working rotating speed of the water pump is controlled, the cooling liquid is thrown to the inner wall of the runner of the volute chamber 150 under the action of the rotating centrifugal force of the closed impeller 130, the cooling liquid is gradually expanded along the runner of the volute chamber 150 to be sent to the liquid outlet of the pump, and finally flows to the engine water jacket and other parts needing to take water through the guide plate 140 at the liquid outlet, the engine is ensured not to be overheated, and the damage caused by the impact force when the cooling liquid flows out of the pump body 120 can be greatly avoided through the design of the guide plate 140, has certain effects of energy conservation and emission reduction.

It should be noted that the specific model specifications of the low-speed coil 231 and the high-speed coil 232 need to be determined by model selection according to the actual specification of the device, and the specific model selection calculation method adopts the prior art, so detailed and redundant processes are not needed.

The power supply of the low-speed coil 231 and the high-speed coil 232 and the principle thereof will be apparent to those skilled in the art and will not be described in detail herein.

The above description is only an example of the present application and is not intended to limit the scope of the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A closed impeller type three-speed electromagnetic clutch water pump with a flow guiding function is characterized by comprising

The water pump assembly (10) comprises a fixed shaft (110), a pump body (120) and a closed impeller (130), the pump body (120) is rotatably arranged on the fixed shaft (110), the closed impeller (130) is fixedly arranged at one end of the fixed shaft (110), the closed impeller (130) is positioned in a cavity of the pump body (120), an annular vortex chamber (150) is formed between the closed impeller (130) and the inner wall of the pump body (120), and a guide plate (140) is obliquely arranged at a liquid outlet of the vortex chamber (150);

an electromagnetic clutch assembly (20), the electromagnetic clutch assembly (20) including a pulley (210), a core element (220), a solenoid member (230), a clutch disc member (240), a lock disc (250), and a flexible driving member (260), the belt pulley (210) is rotatably sleeved in the middle of the fixed shaft (110), the iron core element (220) is fixedly sleeved on the outer side of the pump body (120), the solenoid member (230) includes a low speed coil (231) and a high speed coil (232), the low-speed coil (231) and the high-speed coil (232) are embedded in the iron core element (220), the locking disc (250) is arranged at one end of the fixed shaft (110) far away from the pump body (120), the clutch disk member (240) includes a low-speed clutch disk (241) and a high-speed clutch disk (242), the low-speed clutch disc (241) and the high-speed clutch disc (242) are both arranged on one side of the locking disc (250) close to the iron core element (220) through an elastic sheet (243), the low-speed clutch plate (241) is disposed opposite to the low-speed coil (231), the high-speed clutch plate (242) is arranged opposite to the high-speed coil (232), the flexible drive member (260) is mounted between the pulley (210) and the locking disc (250).

2. The closed impeller type three-speed electromagnetic clutch water pump with the flow guiding function as claimed in claim 1, wherein the flexible driving member (260) comprises a permanent magnet (261), a magnetic soft plate (262) and a fixed disk (263), the permanent magnet (261) is embedded in the outer ring position of the locking disk (250) far away from the fixed shaft (110), the fixed disk (263) is fixedly arranged on one side of the belt pulley (210), the magnetic soft plate (262) is embedded in the fixed disk (263), and the permanent magnet (261) and the magnetic soft plate (262) are opposite in position and are arranged in a gap.

3. The closed impeller type three-speed electromagnetic clutch water pump with the flow guiding function according to claim 1, wherein an annular groove (211) is formed in one side of the pulley (210), and a gap exists between the iron core element (220) and the inner wall of the annular groove (211).

4. The closed impeller type three-speed electromagnetic clutch water pump with the flow guiding function according to claim 3, wherein a plurality of magnetic conduction grooves (212) are formed in one end face, close to the clutch disc member (240), of the belt pulley (210), and the plurality of magnetic conduction grooves (212) are arranged from inside to outside along the radial direction of the belt pulley (210).

5. The closed impeller type water pump with the three-speed electromagnetic clutch and the flow guiding function according to claim 1, wherein a side of the pulley (210) away from the core element (220) is concave, a cover plate (213) is covered on one side of the pulley (210), and the locking disc (250) is located between the pulley (210) and the cover plate (213).

6. The closed impeller type three-speed electromagnetic clutch water pump with the flow guiding function according to claim 1, wherein the fixed shaft (110) is sleeved with a first bearing (111), and an outer ring of the first bearing (111) is in interference fit with an inner wall of the pump body (120).

7. The closed impeller type three-speed electromagnetic clutch water pump with the flow guiding function according to claim 6 is characterized in that a water seal (112) is arranged on the fixed shaft (110), and the water seal (112) is located between the closed impeller (130) and the first bearing (111).

8. The closed impeller type three-speed electromagnetic clutch water pump with the flow guiding function according to claim 1, wherein a flange (113) is fixed to one end, away from the closed impeller (130), of the fixed shaft (110), and the locking disc (250) is fixedly sleeved on the flange (113).

9. The closed impeller type three-speed electromagnetic clutch water pump with the flow guiding function as claimed in claim 1, wherein a second bearing (160) is sleeved on the middle portion of the fixed shaft (110), and the outer ring of the second bearing (160) is in interference fit with the inner wall of the belt pulley (210).

10. The closed impeller type three-speed electromagnetic clutch water pump with the flow guiding function as claimed in claim 1, wherein the guide plate (140) is tongue-shaped, and the guide plate (140) extends along a tangential direction of the liquid outlet of the vortex chamber (150).