CN213744613U

CN213744613U - Electromagnetic clutch convenient to assemble

Info

Publication number: CN213744613U
Application number: CN202021798347.2U
Authority: CN
Inventors: 梁奉敏; 梁振; 王红玉; 郄玉娇
Original assignee: Hebei Haofang New Energy Technology Co ltd
Current assignee: Hebei Haofang New Energy Technology Co ltd
Priority date: 2020-08-25
Filing date: 2020-08-25
Publication date: 2021-07-20
Anticipated expiration: 2030-08-25

Abstract

The utility model relates to an electromagnetic clutch convenient to assembly. Comprises a coil assembly, a belt wheel assembly and a driving disc assembly; the driving disc assembly comprises a sucker with a radiating strip hole, and the middle part of the sucker is provided with a shaft sleeve hole; the driving disc is characterized by also comprising a driving disc with a shaft sleeve in the middle, wherein the shaft sleeve is positioned in a shaft sleeve hole on the sucking disc, the shaft sleeve and the driving disc are integrated, a spline groove is formed in the inner wall of the shaft sleeve, and a plurality of boss structures are also arranged on a disc body of the driving disc; the inner end of each spring leaf is fixedly connected with the disc body of the driving disc by adopting the boss structure, and the outer end of each spring leaf is riveted and connected with the disc body of the sucking disc by adopting a rivet; a plurality of plug holes are also arranged on the disk body of the driving disk, and a silencing plug is arranged in each plug hole.

Description

Electromagnetic clutch convenient to assemble

Technical Field

The utility model belongs to the technical field of electromagnetic clutch, especially, relate to an electromagnetic clutch convenient to assembly.

Background

The electromagnetic clutch is a friction clutch that generates a pressing force by an electromagnetic force. The remote control can be realized, the control energy is small, the automatic control is convenient to realize, and meanwhile, the action is fast, the structure is simple, and the wide application is obtained. The electromagnetic clutch for automobile air conditioner is one kind of electromagnetic clutch, and is used to transmit the power source of engine to the compressor of air conditioner. When the coil assembly is not electrified, the driving disc assembly and the belt wheel assembly keep a certain gap and are not contacted, and the belt wheel assembly idles; when the coil assembly generates magnetic force after being electrified, the driving disc assembly is attracted, and the belt wheel assembly is connected with the compressor to drive the main shaft of the compressor to work; when the coil assembly is powered off, the magnetic force disappears, the driving disc assembly resets, and the belt wheel assembly is separated from the compressor. The electromagnetic clutch of the automobile air conditioner plays two roles: firstly, power is transmitted to drive the compressor to operate; secondly, according to the temperature requirement in the vehicle room, the engine is connected with or separated from the compressor to control the intermittent operation of the air conditioner.

The driving disc assembly of the existing electromagnetic clutch for the automobile air conditioner generally comprises a sucking disc, a spring piece, a driving plate, a spline disc and the like, wherein the sucking disc is used for being connected with the coil assembly after being electrified in an adsorption mode, the spline disc is installed on the driving plate and is connected with a main shaft of an air conditioner compressor, and the spring piece is located between the sucking disc and the driving plate to provide reset elastic force.

In the production assembly of electromagnetic clutches and in the working process of electromagnetic clutches, it was found that: firstly, the driving disc assembly with the structure is complex in structure, so that the assembly steps are more, and more working hours are consumed; secondly, because the part quantity is more and the connection point position is many, lead to producing the tolerance accumulation problem, can't guarantee the dimensional range requirement of assembly, finally lead to air conditioner electromagnetic clutch working property variation. Therefore, the structure of the electromagnetic clutch of the automobile air conditioner needs to be optimally designed to solve the technical problem.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve the technical problem that exists among the known art and provide a structural design is reasonable, easy assembly and easily satisfy the electromagnetic clutch of the assembly of being convenient for of assembly required precision.

The utility model discloses a solve the technical scheme that technical problem that exists among the well-known technique took and be: an electromagnetic clutch convenient to assemble comprises a coil assembly, a belt wheel assembly and a driving disc assembly; the driving disc assembly comprises a sucker with a radiating strip hole, and the middle part of the sucker is provided with a shaft sleeve hole; the driving disc is characterized by also comprising a driving disc with a shaft sleeve in the middle, wherein the shaft sleeve is positioned in a shaft sleeve hole on the sucking disc, the shaft sleeve and the driving disc are integrated, a spline groove is formed in the inner wall of the shaft sleeve, and a plurality of boss structures are also arranged on a disc body of the driving disc; the inner end of each spring leaf is fixedly connected with the disc body of the driving disc by adopting the boss structure, and the outer end of each spring leaf is riveted and connected with the disc body of the sucking disc by adopting a rivet; a plurality of plug holes are also arranged on the disk body of the driving disk, and a silencing plug is arranged in each plug hole.

The utility model has the advantages that: the utility model provides a reasonable in structural design's electromagnetic clutch of being convenient for assembly compares with current air conditioner electromagnetic clutch, the utility model discloses in through the driving-disc of making among the driving-disc assembly and the axle sleeve structure as an organic whole that has the spline groove, saved the spline dish component among the current assembly, simplified the structure of driving-disc assembly. As the spline disk component is omitted, the assembling steps of the whole driving disk assembly and the electromagnetic clutch are reduced, the working hours are saved, and the production efficiency is improved. Through making driving-disc and axle sleeve structure as an organic whole, be favorable to guaranteeing the machining precision of component, reduced the number of connection point position between the component simultaneously, effectively avoided the tolerance accumulation problem that produces during the assembly, guaranteed the compliance between product size and the processing standard. The plurality of boss structures playing a rivet role are arranged on the disc body of the driving disc, and the inner ends of the spring pieces are connected with the driving disc through the boss structures, so that the number of components is further reduced, the setting precision of connection point positions is improved, the convenience of assembly of the driving disc assembly is further improved, and the assembly precision is further improved. The noise level of the electromagnetic clutch of the air conditioner during working is reduced by arranging the silencing plug between the driving disc and the sucker.

Preferably: the boss structure is integrally formed on the disc body of the driving disc and is of a hollow structure or a solid structure.

Preferably: the shaft sleeve is integrally formed on the disc body of the driving disc or is welded and connected on the disc body of the driving disc after being formed in a split mode.

Preferably: the disk surface of the driving disk is provided with an annular friction plate groove, and a friction plate is arranged in the friction plate groove.

Preferably: the number of the spring arms is three, and the spring arms are arranged at equal angular intervals in the circumferential direction.

Preferably: the number of the silencing plugs is three, and the silencing plugs are circumferentially arranged at equal angular intervals.

Preferably: the silencing plug comprises a gasket part and an inserting part, the inserting part is positioned in the plug hole, and the gasket part is positioned between the sucker and the driving disc.

Preferably: the belt wheel assembly comprises a belt wheel with a bearing arranged at the center, and an annular embedded groove is arranged at the rear part of the belt wheel.

Preferably: the coil assembly comprises a coil base body with a coil groove, a coil is arranged in the coil groove, and the coil base body is positioned in the embedded groove of the belt wheel assembly; the coil is characterized by further comprising a wire harness, wherein the wire harness penetrates through the coil base body and then is connected with the coil.

Preferably: the coil assembly also comprises a rear cover, and the rear cover is welded with the rear part of the coil base body.

Drawings

Fig. 1 is a schematic view of the external structure of the present invention;

FIG. 2 is a schematic cross-sectional view of the coil assembly and pulley assembly of FIG. 1;

FIG. 3 is a schematic front view of the drive plate assembly of FIG. 1;

FIG. 4 is a schematic perspective view, from a front perspective, of the drive disc assembly of FIG. 1;

fig. 5 is a schematic sectional structure view of the driving plate of fig. 3.

In the figure:

1. a coil assembly; 1-1, wiring harness; 1-2, a rear cover; 1-3, a coil substrate; 1-4, coil; 2. a pulley assembly; 2-1, belt wheel; 2-2, a bearing; 3. a drive plate assembly; 3-1, boss structure; 3-2, spring leaves; 3-3, riveting; 3-4, radiating strip holes; 3-5, a sucker; 3-6, a silencing plug; 3-7, a driving disc; 3-8, shaft sleeve; 3-9, friction plate grooves; 3-10, plugging the hole.

Detailed Description

For further understanding of the contents, features and functions of the present invention, the following embodiments are described in detail.

Please refer to fig. 1, the electromagnetic clutch convenient for assembly of the present invention includes a coil assembly 1, a belt pulley assembly 2 and a driving disc assembly 3, wherein the coil assembly 1 is used for generating magnetic force to attract the driving disc assembly 3 to move, the belt pulley assembly 2 is connected with the transmission of the automobile engine through a belt, and the driving disc assembly 3 is connected with the main shaft of the automobile air conditioner. When the coil assembly 3 is electrified to generate magnetic force, the driving disc assembly 3 moves towards the belt wheel assembly 2 and is finally attached, and the power of the engine is transmitted to the air-conditioning compressor by virtue of friction transmission; when the coil assembly 3 is powered off and the magnetic force disappears, the driving disc assembly 3 is separated from the belt wheel assembly 2, and the power is disconnected.

Referring to fig. 2, it can be seen that:

the belt wheel assembly 2 comprises a belt wheel 2-1 with a bearing 2-2 arranged at the center, and an annular embedded groove is arranged at the rear part of the belt wheel 2-1.

The coil assembly 1 comprises coil base bodies 1-3 with coil grooves, coils 1-4 are arranged in the coil grooves, and the coil base bodies 1-3 are located in the embedded grooves of the belt wheel assembly 2. The vehicle-mounted controller also comprises a wire harness 1-1, wherein the wire harness 1-1 penetrates through the coil substrate 1-3 and then is connected with the coil 1-4, and the other end of the wire harness 1-1 is connected to the vehicle-mounted controller.

As shown in the figure, the coil assembly 1 further comprises a rear cover 1-2, and the rear cover 1-2 is welded with the rear part of the coil base 1-3. When the air conditioner compressor is installed, the rear cover 1-2 is fixedly connected with a shell of the air conditioner compressor, so that the coil assembly 1 is fixed and does not rotate, the belt wheel assembly 2 is in transmission connection with an engine through a belt, the belt wheel assembly 2 follows up when the engine is in a working state, and the driving disc assembly 3 moves under the action of magnetic force when a vehicle-mounted controller sends a combined command.

Referring to fig. 3, 4 and 5, it can be seen that:

the driving disc assembly 3 comprises a sucker 3-5 with a radiating strip hole 3-4, and a shaft sleeve hole is arranged in the middle of the sucker 3-5. The suckers 3-5 drive the whole driving disc assembly 3 to move under the condition that the coil assembly 1 generates magnetic attraction. The radiating strip holes 3-4 are used for promoting the dissipation of heat generated by friction and preventing overhigh temperature.

The device also comprises a driving disc 3-7 with a shaft sleeve 3-8 in the middle, wherein the shaft sleeve 3-8 is positioned in a shaft sleeve hole on the sucking disc 3-5. The shaft sleeves 3-8 and the driving discs 3-7 are integrated, and the inner walls of the shaft sleeves 3-8 are provided with spline grooves. By integrating the shaft sleeves 3-8 and the driving discs 3-7 into a whole, a spline disc member is omitted, the integral structure of the driving disc assembly 3 is simplified, the assembling man-hour is saved, the assembling precision is improved, and the electromagnetic clutch is ensured to have good working characteristics.

In order to ensure the transmission effect, the disk surface of the driving disk 3-7 is provided with an annular friction plate groove 3-9, a friction plate is arranged in the friction plate groove 3-9, and when the sucking disk 3-5 is abutted against the front part of the belt wheel 2-1 of the belt wheel assembly 2, the reliability and the stability of transmission are ensured by virtue of the friction action generated by the friction plate.

In the embodiment, the shaft sleeves 3-8 are integrally formed on the disk body of the driving disk 3-7 or are welded and connected on the disk body of the driving disk 3-7 after being formed in a split mode. Specifically, when the former combination mode is adopted, the shaft sleeve 3-8 and the driving disc 3-7 are processed by adopting an integral forming process, for example, the processes of forging forming, casting forming and the like are adopted for processing, and when the latter combination mode is adopted, the shaft sleeve 3-8 and the driving disc 3-7 are respectively formed in a split mode and then are connected by adopting a welding process.

A plurality of boss structures 3-1 are further arranged on the disc body of the driving disc 3-7, and each boss structure 3-1 provides a rivet-like function for fixing and connecting components. In this embodiment, the boss structure 3-1 is integrally formed on the disk body of the driving disk 3-7, and is a hollow structure or a solid structure. Specifically, the hollow boss structure 3-1 may be obtained by stamping and forming the disc body of the driving disc 3-7 by a stamping and forming process, or the hollow or solid boss structure 3-1 may be obtained by casting and forming process, and when the boss structure 3-1 is formed and processed by a casting and forming process, the casting and forming process may be performed simultaneously with the casting and forming process of the shaft sleeve 3-8.

The structure is characterized by further comprising a plurality of spring pieces 3-2, the inner ends of the spring pieces 3-2 are fixedly connected with the disc body of the driving disc 3-7 through the boss structures 3-1, the outer ends of the spring pieces 3-2 are riveted with the disc body of the sucking disc 3-5 through rivets 3-3, specifically, the boss structures 3-1 and the rivets 3-3 are respectively located in holes in the end portions of the spring pieces 3-2, and the end portions are deformed through hammering of the boss structures 3-1 and the rivets 3-3, so that the fixed connection of components is achieved. Each spring plate 3-2 is used for providing restoring elastic force for the whole driving disc assembly 3. In the embodiment, the number of the spring arms 3-2 is three, and the spring arms are circumferentially arranged at equal angular intervals.

A plurality of plug holes 3-10 are also arranged on the disk body of the driving disk 3-7, and a silencing plug 3-6 is arranged in each plug hole 3-10. The silencing plugs 3-6 are used for reducing noise in the process of attaching and separating the suckers 3-5 and the driving discs 3-7, and the working characteristics of the electromagnetic clutch are guaranteed.

In the embodiment, the number of the silencing plugs 3-6 is three, and the silencing plugs are circumferentially arranged at equal angular intervals. Further, the silencing plug 3-6 comprises a gasket part and a plug part, wherein the plug part is positioned in the plug hole 3-10, and the gasket part is positioned between the suction cup 3-5 and the driving disk 3-7. In terms of materials, the silencing plugs 3-6 can be made of hard rubber materials.

Installation mode and working process:

the automobile air-conditioning electromagnetic clutch is arranged on a shell of an air-conditioning compressor, the end part of a main shaft of the air-conditioning compressor is positioned in a shaft sleeve 3-8 and is connected through a key, and a wire harness 1-1 is connected to an on-vehicle controller;

when the electromagnetic clutch is required to be in a combined state, the coil assembly 1 is controlled by the vehicle-mounted controller to be electrified to generate magnetic force, the driving disc assembly 3 moves towards the belt wheel assembly 2 and is finally attached and abutted together, under the action of friction force, the driving disc assembly 3 and the belt wheel assembly 2 synchronously rotate, and the power of the engine is transmitted to the air-conditioning compressor; when the electromagnetic clutch is required to enter a separation state, the electromagnetic force of the vehicle-mounted controller for controlling the coil assembly 1 to be switched off disappears, the driving disc assembly 3 is far away from the belt wheel assembly 2 under the elastic force action of the spring piece 3-2, and the power transmission is stopped.

The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.

Claims

1. The utility model provides an electromagnetic clutch convenient to assembly which characterized by: comprises a coil assembly (1), a belt wheel assembly (2) and a driving disc assembly (3); the driving disc assembly (3) comprises suckers (3-5) with radiating strip holes (3-4), and shaft sleeve holes are formed in the middles of the suckers (3-5); the device also comprises a driving disc (3-7) with a shaft sleeve (3-8) in the middle, wherein the shaft sleeve (3-8) is positioned in a shaft sleeve hole on the sucking disc (3-5), the shaft sleeve (3-8) and the driving disc (3-7) are integrated, a spline groove is arranged on the inner wall of the shaft sleeve (3-8), and a plurality of boss structures (3-1) are also arranged on the disc body of the driving disc (3-7); the device is characterized by further comprising a plurality of spring pieces (3-2), the inner ends of the spring pieces (3-2) are fixedly connected with the disc body of the driving disc (3-7) through the boss structures (3-1), and the outer ends of the spring pieces (3-2) are riveted with the disc body of the sucking disc (3-5) through rivets (3-3); a plurality of plug holes (3-10) are also arranged on the disk body of the driving disk (3-7), and a silencing plug (3-6) is arranged in each plug hole (3-10).

2. The electromagnetic clutch of claim 1 for ease of assembly, wherein: the boss structure (3-1) is integrally formed on the disc body of the driving disc (3-7) and is of a hollow structure or a solid structure.

3. The electromagnetic clutch of claim 2 for ease of assembly, wherein: the shaft sleeves (3-8) are integrally formed on the disc body of the driving disc (3-7) or are welded and connected on the disc body of the driving disc (3-7) after being formed in a split mode.

4. The electromagnetic clutch of claim 3 for ease of assembly, wherein: the disk surface of the driving disk (3-7) is provided with an annular friction plate groove (3-9), and a friction plate is arranged in the friction plate groove (3-9).

5. The electromagnetic clutch of claim 4 for ease of assembly, wherein: the number of the spring pieces (3-2) is three, and the spring pieces are circumferentially arranged at equal angular intervals.

6. The electromagnetic clutch of claim 5 for ease of assembly, wherein: the number of the silencing plugs (3-6) is three, and the silencing plugs are circumferentially arranged at equal angular intervals.

7. The electromagnetic clutch of claim 6 for ease of assembly, wherein: the silencing plug (3-6) comprises a gasket part and an inserting part, wherein the inserting part is positioned in the plug hole (3-10), and the gasket part is positioned between the suction cup (3-5) and the driving disc (3-7).

8. The electromagnetic clutch of claim 7 for ease of assembly, wherein: the belt wheel assembly (2) comprises a belt wheel (2-1) with a bearing (2-2) arranged at the center, and an annular embedded groove is arranged at the rear part of the belt wheel (2-1).

9. The electromagnetic clutch of claim 8 for ease of assembly, wherein: the coil assembly (1) comprises a coil base body (1-3) with a coil groove, a coil (1-4) is arranged in the coil groove, and the coil base body (1-3) is positioned in the embedded groove of the belt wheel assembly (2); the coil is characterized by further comprising a wiring harness (1-1), wherein the wiring harness (1-1) penetrates through the coil base body (1-3) and then is connected with the coil (1-4).

10. The electromagnetic clutch of claim 9 for ease of assembly, wherein: the coil assembly (1) further comprises a rear cover (1-2), and the rear cover (1-2) is connected with the rear part of the coil base body (1-3) in a welding mode.