CN211624000U

CN211624000U - Water pump clutch circular telegram differential outage full speed device

Info

Publication number: CN211624000U
Application number: CN201921179319.XU
Authority: CN
Inventors: 马国强; 马骏
Original assignee: Jiaxing Xingtao Auto Parts Co ltd
Current assignee: Jiaxing Xingtao Auto Parts Co ltd
Priority date: 2019-07-25
Filing date: 2019-07-25
Publication date: 2020-10-02
Anticipated expiration: 2029-07-25

Abstract

A water pump clutch power-on differential power-off full-speed device comprises a belt wheel assembly, a driving assembly, a control assembly and a driven assembly driven by the driving assembly. The belt wheel assembly comprises an input belt wheel and a rotating disc, wherein the input belt wheel comprises a belt wheel, a shaft sleeve which is arranged on the inner side of the belt wheel and is concentric with the belt wheel, and an accommodating cylinder which is arranged at one end of the belt wheel and one end of the shaft sleeve. The rotating disc is embedded at one end of the accommodating cylinder far away from the belt pulley. The driving assembly comprises a permanent magnetic disc arranged in the accommodating barrel, a sucking disc concentrically fixed on one side of the permanent magnetic disc far away from the rotating disc, and at least one elastic piece arranged between the permanent magnetic disc and the sucking disc. When the coil is electrified, the driving assembly is controlled to form a belt wheel assembly and the driving assembly to rotate in a differential speed mode, and when the coil is not electrified, the driving assembly and the belt wheel assembly rotate at the same speed, so that the safety performance of the automobile can be improved.

Description

Water pump clutch circular telegram differential outage full speed device

Technical Field

The utility model belongs to the technical field of mechanical equipment, especially a water pump clutch circular telegram differential outage full speed device.

Background

The automobile water pump is an important part of an automobile engine cooling system, an engine drives a main shaft and an impeller of the water pump to rotate through a belt pulley, cooling liquid in the water pump is driven by the impeller and thrown to the edge of a water pump shell under the action of centrifugal force, then flows out of a water pipe and is circulated in a reciprocating mode to cool an automobile engine. The water pump clutch is sleeved on the main shaft of the water pump and used for controlling the work of the water pump.

For example, chinese patent document discloses a clutch device for a water pump of an automobile [ application No.: 201620948555.3], the clutch device of the automobile water pump comprises a main shaft passing through the water pump body, a belt pulley sleeved on the end part of the water pump body and a shell sleeved on the end part of the belt pulley, wherein a clutch plate structure, a friction disc and an electromagnetic coil structure are sequentially arranged in a hollow cavity formed by the main shaft and the shell from the end surface of the belt pulley. When the electromagnetic coil is electrified, the magnetic field adsorbs the clutch plate structure to combine with the friction disc to drive the main shaft and the belt pulley to synchronously rotate.

In the automobile water pump clutch device, when the electromagnetic coil is electrified, the main shaft and the belt pulley rotate synchronously, and when the electromagnetic coil is not electrified, the main shaft and the belt pulley rotate asynchronously. This causes a problem that when the electromagnetic coil fails, i.e., the electromagnetic coil cannot be normally energized, the main shaft and the belt pulley cannot rotate synchronously, and the water pump cooling system cannot operate effectively, which brings great potential safety hazards to the automobile and is not beneficial to improving the safety performance of the automobile.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a water pump clutch circular telegram differential outage full speed device to solve above-mentioned problem.

The water pump clutch electrifying differential power-off full-speed device comprises a belt wheel assembly, a driving assembly and a control assembly, and a driven assembly driven by said drive assembly, said pulley assembly including an input pulley and a rotatable disc, the input belt wheel comprises a belt wheel, a shaft sleeve which is arranged at one side of the belt wheel and is concentric with the belt wheel, and an accommodating barrel arranged at one end of the belt pulley and the shaft sleeve, wherein the rotating disc is embedded at one end of the accommodating barrel far away from the belt pulley, the driving assembly comprises a permanent magnetic disc arranged in the accommodating barrel, a sucking disc fixed on one side of the permanent magnetic disc far away from the rotating disc, and at least one elastic piece arranged between the permanent magnetic disk and the sucker, wherein at least two groups of first permanent magnets with opposite polarities and magnetic pole directions arranged along the thickness direction of the permanent magnetic disk are arranged on the permanent magnetic disk. The control assembly comprises a coil shell arranged between the inner wall of the belt pulley and the outer wall of the shaft sleeve, a coil arranged in the coil shell, and a second permanent magnet which is abutted against one side of the coil and is attracted with the magnetism of the first permanent magnet. When the coil is powered off, the first permanent magnet and the second permanent magnet are attracted ferromagnetically to enable the sucker and the input belt wheel to be attracted and fixed, and the driven assembly and the input belt wheel rotate at the same speed. When the coil is electrified, the coil generates magnetic force and forms a closed magnetic force loop with the second permanent magnet, the elastic piece forces the sucker to be separated from the input belt wheel, the rotating disc rotates and cuts magnetic force lines of the first permanent magnet, so that the magnetic force lines of the rotating disc generate driving force for driving the permanent magnet disc to rotate, and the driving assembly rotates.

Furthermore, the driven assembly comprises an output shaft penetrating through the belt wheel assembly, the driving assembly and the control assembly, a wheel hub penetrating through the permanent magnetic disc and fixedly connected with the output shaft, and a water pump assembly connected to one end, far away from the wheel hub, of the output shaft.

Furthermore, the water pump assembly comprises a mounting structure sleeved on the output shaft and an impeller fixedly connected to the end part of the output shaft.

Further, the elastic piece comprises at least three reeds distributed circumferentially and the reeds are always in a compressed state.

Furthermore, an annular mounting groove is formed in one end, close to the input belt wheel, of the coil shell, and the coil and the second permanent magnet are embedded in the annular mounting groove.

Further, the rotating disk comprises an annular cover body, an annular cavity arranged on the annular cover body, and an iron piece arranged in the annular cavity, wherein the annular cover body is made of non-metallic materials.

Furthermore, the mounting structure comprises a cylindrical part with one end penetrating through the shaft sleeve, and a mounting disc arranged at one end, far away from the shaft sleeve, of the cylindrical part, and the mounting disc is fixedly connected with the coil shell.

Furthermore, a bearing used for penetrating the output shaft is embedded in the mounting disc.

Furthermore, an annular limiting groove is formed in the circumferential outer side of one end, far away from the mounting disc, of the cylindrical portion, and an annular limiting part used for preventing the cylindrical portion from being separated from the shaft sleeve is arranged in the annular limiting groove.

Further, the inner diameter of the accommodating barrel is larger than that of the shaft sleeve.

Compared with the prior art, the utility model provides a water pump clutch circular telegram differential outage full-speed device passes through coil assembly electromagnetic control drive assembly, can more smooth-going transition at outage differential and circular telegram full-speed interconversion in-process, reduces wearing and tearing between the part, works as during the coil circular telegram, drive assembly is in rotatory under the drive power that produces during this magnetic line of force of rotary disk cutting. When the coil is powered off, the driving assembly and the belt wheel assembly rotate at the same speed, so that even if the coil or the circuit module fails, the driving assembly can still rotate at the same speed as the belt wheel assembly, the cooling system of the water pump can be guaranteed to run at the maximum speed, namely the water pump can run under the highest level of cooling capacity, and the safety performance of an automobile can be improved.

Drawings

Fig. 1 is an exploded schematic view of the water pump clutch power-on differential power-off full-speed device provided by the present invention.

FIG. 2 is a cross-sectional schematic view of the water pump clutch-on differential-off full-speed device of FIG. 1.

Detailed Description

Specific examples of the present invention will be described in further detail below. It should be understood that the description herein of embodiments of the invention is not intended to limit the scope of the invention.

Please refer to fig. 1 to 2, which are schematic exploded structural views of a full speed device for a water pump clutch with power-on differential power-off provided by the present invention. The water pump clutch energized differential de-energized full speed device includes a pulley assembly 10, a drive assembly 20, a control assembly 30, and a driven assembly 40 driven by the drive assembly 20. It is conceivable that the water pump clutch energizing differential power-off full-speed device further comprises a motor module for driving the belt wheel assembly 10 to rotate, a heat dissipation module for reducing the temperature of the whole device, a circuit module for controlling the on and off of the control assembly 30, an assembly module among the components, and an installation module for externally installing the water pump clutch energizing differential power-off full-speed device, but these should be known to those skilled in the art, and will not be described in detail herein.

The pulley assembly 10 includes an input pulley 11 and a rotatable disc 12. The input pulley 11 includes a pulley 111, a sleeve 112 disposed on one side of the pulley 111 and concentric with the pulley 111, and an accommodating cylinder 113 disposed at one end of the pulley 111 and the sleeve 112. The rotary disk 12 is fitted to one end of the accommodating cylinder 113 away from the pulley 111. It is conceivable that the pulley 111 can be connected to the motor module via a belt for controlling the start and stop of the rotation of the input pulley 11 and the rate of rotation. The inner diameter of the receiving cylinder 113 is larger than that of the sleeve 112, and the rotating disc 12 closes one end of the receiving cylinder 113 away from the pulley 111, so that a built-in cavity is formed between the rotating disc 12 and the receiving cylinder 113. The built-in cavity is configured to receive other components, such as drive assembly 20. The rotating disc 12 may be made of a metal material or a combination of a metal material and a non-metal material, and in the present embodiment, the rotating disc 12 is made of a combination of a metal material and a non-metal material. The rotating disk 12 includes an annular cover 121, an annular cavity 122 disposed on the annular cover 121, and an iron member 123 disposed in the annular cavity 122. The annular cover 121 may be made of a non-metallic material. The iron 123 is used for cutting the magnetic lines of force possessed by the driving assembly 20 to form the driving force, and the specific working principle will be described in detail below.

The driving assembly 20 includes a permanent magnet disc 21 disposed in the accommodating cylinder 113, a suction cup 22 fixed to a side of the permanent magnet disc 21 away from the rotating disc 12, and at least one elastic member 23 disposed between the permanent magnet disc 21 and the suction cup 22. It is contemplated that the driving assembly 20 further includes an assembly module for assembling the permanent magnet disc 21, the suction cup 22 and the elastic member 23, such as a fastening bolt and a fastening nut, which are well known to those skilled in the art and will not be described herein. At least two groups of first permanent magnets 24 with opposite polarities are arranged on the permanent magnet disc 21. In this embodiment, three sets of first permanent magnets 24 are circumferentially distributed on the permanent magnet disc 21. The magnetic pole direction of the first permanent magnet 24 is arranged along the thickness direction of the permanent magnet disc 21, and the magnetic force lines formed by the first permanent magnet 24 are intersected with the plane where the rotating disc 12 is located, so that the rotating disc 12 can effectively cut the magnetic force lines formed by the first permanent magnet 24. The outer diameter of the permanent magnetic disk 21 and the outer diameter of the suction cup 22 are both larger than the inner diameter of the shaft sleeve 112, that is, the permanent magnetic disk 21 and the suction cup 22 are assembled with the shaft sleeve 112 in an interference fit manner, so as to prevent the driving assembly 20 from being separated from the inner cavity of the accommodating barrel 113. The elastic member 23 may be at least three springs distributed circumferentially and always in compression to force the suction cup 22 and the input pulley 11 to always have a tendency to separate.

The control assembly 30 includes a coil housing 31 disposed between the inner wall of the pulley 111 and the outer wall of the bushing 112, a coil 32 disposed in the coil housing 31, and a second permanent magnet 33 abutting against one side of the coil 32 and disposed to attract the magnetism of the first permanent magnet 24. It is conceivable that the coil 32 is connected to a circuit module and that the circuit module controls the switching of the coil 32. When the coil 32 is energized, the magnetic force generated by the coil 32 and the magnetic force of the second permanent magnet 33 form a closed magnetic loop, and the influence range of the magnetic force lines extending outwards from the coil 32 and the second permanent magnet 33 is reduced, so that no magnetic attraction effect exists between the second permanent magnet 33 and the first permanent magnet 24. When the coil 32 is de-energized, the coil 32 does not generate a magnetic force, i.e., only the second permanent magnet 33, so that the magnetic force between the first and second

permanent magnets

24 and 33 is greater than the reaction elastic force of the elastic member 23. An annular mounting groove 34 is also provided at one end of the coil housing 31 near the input pulley 11. The coil 32 and the second permanent magnet 33 are embedded in the annular mounting groove 34. The coil housing 31 may be made of a non-metal material, and a sealed space is formed between the coil housing 31 and the input pulley 11, and the coil 32 and the second permanent magnet 33 are both embedded in the coil housing 31 with better stability.

The driven assembly 40 includes an output shaft 41 passing through the pulley assembly 10, the driving assembly 20 and the control assembly 30, a hub 42 passing through the permanent magnet disc 21 and fixedly connected to the output shaft 41, and a water pump assembly 43 connected to an end of the output shaft 41 far from the hub 42. It is contemplated that the water pump assembly 43 includes a mounting structure 43a that is mounted on the output shaft 41, and an impeller 43b that is fixedly mounted on an end of the output shaft 41. The impeller 43b is prior art and will not be described in detail herein. The output shaft 41 is fixedly connected to the driving assembly 20 through the hub 42, that is, the driving assembly 20, the output shaft 41, and the impeller 43b rotate at the same speed. The mounting structure 43a includes a cylindrical portion 431 passing through the sleeve 112, and a mounting plate 432 disposed at an end of the cylindrical portion 431 remote from the sleeve 112. The mounting disc 432 with the coil housing 31 is connected, can effectively fix the coil housing 31, avoids coil 32 and second permanent magnet 33 to rock, improves the installation stability of control assembly 40. An annular limiting groove 433 is formed in the circumferential outer side of one end, far away from the mounting disk 432, of the cylindrical portion 431. An annular limiting member 434 for preventing the cylindrical portion 431 from being separated from the shaft sleeve 112 is disposed in the annular limiting groove 433. The ring stop 434 may be a C-shaped member and has elasticity. The annular limiting part 434 is clamped in the annular limiting groove 433, and two ends of the annular limiting part 434 are connected to form a hoop type connection. The mounting structure 43a is limited at two ends by the cooperation of the annular limiting part 434 and the mounting disk 432, so that the mounting structure 43a is prevented from moving back and forth along the length direction of the output shaft 41. The mounting plate 432 includes a bearing 435 for the output shaft 41 to pass through. The bearing 435 is used to allow smooth rotation of the output shaft 41. It is also conceivable that the mounting structure 43a is provided with a mounting assembly for mounting to the outside. The mounting assembly is used for mounting the device to other components on the automobile, and the details are not repeated.

In an operating state, when the coil 32 is de-energized, the coil 32 does not generate a magnetic force, the first permanent magnet 24 and the second permanent magnet 33 are magnetically attracted, and the magnetic force between the first permanent magnet 24 and the second permanent magnet 33 is greater than the elastic force of the elastic member 23, so that the suction cup 22 is always attracted and fixed with the input pulley 11 under the magnetic force of the first and second

permanent magnet members

24 and 33, and the driving assembly 20 and the input pulley 11 rotate at the same speed, that is, the driving assembly 20 and the pulley assembly rotate at full speed when the coil 32 is de-energized. When the coil 32 is energized, the coil 32 generates magnetic force and forms a closed magnetic loop with the magnetic force lines of the second permanent magnet 33, so that the magnetism between the coil 32 and the second permanent magnet 33 is lost, at this time, the elastic force generated by the elastic member 23 forces the suction cup 22 to separate from the input pulley 11, the rotating disc 12 starts to rotate and cuts the magnetic force lines formed by the first permanent magnet 24, and at the same time, a driving force for driving the permanent magnet disc 21 to rotate is generated when the magnetic force lines are cut, so that the driving assembly 20 rotates, namely, the driving assembly 20 and the pulley assembly are energized to rotate at different speeds.

The above description is only for the preferred embodiment of the present invention and should not be construed as limiting the scope of the present invention, and any modification, equivalent replacement or improvement within the spirit of the present invention is encompassed by the claims of the present invention.

Claims

1. The utility model provides a water pump clutch circular telegram differential outage full speed device which characterized in that: the water pump clutch electrifying differential power-off full-speed device comprises a belt wheel assembly, a driving assembly, a control assembly and a driven assembly driven by the driving assembly, wherein the belt wheel assembly comprises an input belt wheel and a rotating disc, the input belt wheel comprises a belt wheel, a shaft sleeve which is arranged on one side of the belt wheel and is concentrically arranged with the belt wheel, and an accommodating barrel which is arranged at one end of the belt wheel and one end of the shaft sleeve, the rotating disc is embedded at one end of the accommodating barrel which is far away from the belt wheel, the driving assembly comprises a permanent magnetic disc which is arranged in the accommodating barrel, a sucking disc which is fixed on one side of the permanent magnetic disc which is far away from the rotating disc, and at least one elastic piece which is arranged between the permanent magnetic disc and the sucking disc, at least two groups of first permanent magnets which have opposite polarities and are arranged in the direction of the magnetic poles along the thickness direction of the permanent, the control assembly comprises a coil shell arranged between the inner wall of the belt pulley and the outer wall of the shaft sleeve, a coil arranged in the coil shell, and a second permanent magnet abutting against one side of the coil and magnetically attracting the first permanent magnet, when the coil is powered off, the first permanent magnet and the second permanent magnet are attracted ferromagnetically to enable the sucker to be attracted and fixed with the input belt wheel, the driving assembly and the input belt wheel rotate at the same speed, when the coil is electrified, the coil generates magnetic force and forms a closed magnetic loop with the second permanent magnet, the elastic piece forces the sucker to be separated from the input belt wheel, the rotating disc rotates and cuts magnetic lines of force of the first permanent magnet, and the magnetic lines of force of the rotating disc generate driving force for driving the permanent magnet disc to rotate so as to drive the driving assembly to rotate.

2. The water pump clutch-on differential-off full-speed device of claim 1, wherein: the driven assembly comprises an output shaft penetrating through the belt wheel assembly, the driving assembly and the control assembly, a wheel hub penetrating through the permanent magnetic disc and fixedly connected with the output shaft, and a water pump assembly connected to one end, far away from the wheel hub, of the output shaft.

3. The water pump clutch-on differential-off full-speed device of claim 2, wherein: the water pump assembly comprises a mounting structure sleeved on the output shaft and an impeller fixedly connected to the end part of the output shaft.

4. The water pump clutch-on differential-off full-speed device of claim 1, wherein: the elastic piece comprises at least three reeds which are distributed circumferentially and are always in a compressed state.

5. The water pump clutch-on differential-off full-speed device of claim 1, wherein: and one end of the coil shell, which is close to the input belt wheel, is provided with an annular mounting groove, and the coil and the second permanent magnet are embedded in the annular mounting groove.

6. The water pump clutch-on differential-off full-speed device of claim 1, wherein: the rotating disc comprises an annular cover body, an annular cavity arranged on the annular cover body and an iron piece arranged in the annular cavity, wherein the annular cover body is made of non-metallic materials.

7. A water pump clutch-on differential de-energized full speed device as claimed in claim 3, wherein: the mounting structure comprises a cylindrical part with one end penetrating through the shaft sleeve and a mounting disc arranged at one end, far away from the shaft sleeve, of the cylindrical part, and the mounting disc is fixedly connected with the coil shell.

8. The water pump clutch-on differential speed power-off full-speed device as recited in claim 7, wherein: and a bearing used for penetrating the output shaft is embedded in the mounting disc.

9. The water pump clutch-on differential speed power-off full-speed device as recited in claim 7, wherein: the cylinder portion is equipped with an annular spacing groove in the circumference outside of keeping away from the one end of mounting disc, be equipped with one in the annular spacing groove and be used for preventing that cylinder portion breaks away from the annular locating part of axle sleeve.

10. The water pump clutch-on differential-off full-speed device of claim 1, wherein: the inner diameter of the accommodating barrel is larger than that of the shaft sleeve.