Electromagnetic clutch with cast copper structure

Abstract

The utility model discloses an electromagnetic clutch with a cast copper structure, which comprises a stator assembled at a shaft end, a rotating mechanism used for increasing the response speed of the clutch, a response mechanism used for responding to a clutch mechanism, and the clutch mechanism used for transmitting or disconnecting power, the rotating mechanism is arranged on the inner side of the stator, the response mechanism is arranged at one end of the rotating mechanism, and the clutch mechanism is assembled on the outer side of the rotating mechanism and the outer side of the response mechanism. The clutch can meet the installation requirement of the clutch, meanwhile, the installation stability of the clutch is guaranteed, the magnetic flux of the clutch can be effectively improved, the demagnetizing effect of the clutch is improved, the clutch response time can be effectively shortened by being matched with a response mechanism and a clutch mechanism, the clutch delay is reduced, the clutch precision is high, and the clutch reliability is high. And the pause phenomenon of the clutch in the engaging and disengaging process is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of electromagnetic clutches, in particular to an electromagnetic clutch with a cast copper structure. Background Art

[0002] In the prior art, the clutch plays the role of controlling the power cut-off or transmission between shaft systems in the hybrid power system. It is installed on the input shaft of the automobile engine, the motor shaft of the drive motor, and the intermediate shaft to perform gear shifting or control the participation of the power source. The no-load torque of the electromagnetic clutch output shaft is affected by the traction of the electromagnetic attraction force, the friction of the switch roller, and the concentricity error of the double bearings, which will cause the no-load torque of the output shaft to increase. In the power-on release state, the reducer will drive the clutch output shaft to rotate. Excessive no-load will affect the transmission accuracy and transmission efficiency. The existing electromagnetic clutch has an orange segment-shaped weight-reducing through-hole structure arranged around the mounting end face of the internal rotor. This weight-reducing through-hole can meet the clutch installation requirements while reducing the weight of the rotor to ensure its installation stability. However, this structure will affect the magnetic flux during the clutch process, reduce the demagnetization effect of the clutch, and the clutch response time is long, with a large delay and poor clutch accuracy.

[0003] The Chinese utility model patent with application number: 201420778221.7 discloses an electromagnetic clutch, which belongs to the field of clutch, including a wire seat, a bearing, a rotor, a clutch plate and a spring sheet. The wire seat, the bearing, the rotor, the clutch plate and the spring sheet are all axially provided with an axial hole; a magnetic coil is provided in the wire seat; the bearing and the rotor are axially arranged in the wire seat axial hole, and the bearing and the rotor are in contact; a shaft bolt is provided in the rotor to fix the rotating shaft and the rotor; the clutch plate and the spring sheet are connected to the rotor in turn, and the rotor, the clutch plate and the spring sheet are all fixed to the wire seat. However, the mounting end surface of the rotor inside the electromagnetic clutch is surrounded by an orange segment-shaped weight-reducing through-hole structure, which will affect the magnetic flux during the clutch process, reduce the demagnetization effect of the clutch, and the clutch response time is long, with a large delay, and the clutch accuracy is poor. Utility Model Content

[0004] The utility model aims to provide an electromagnetic clutch with a cast copper structure.

[0005] In order to achieve the above purpose, the technical solution proposed by the utility model is:

[0006] An electromagnetic clutch with a cast copper structure includes a stator, which is assembled on the end of a shaft, a rotating mechanism for improving the response speed of the clutch, a response mechanism for responding to the clutch mechanism, and a clutch mechanism for transmitting or disconnecting power. The rotating mechanism is arranged on the inner side of the stator, the response mechanism is configured at one end of the rotating mechanism, and the clutch mechanism is assembled on the outer sides of the rotating mechanism and the response mechanism.

[0007] The rotating mechanism includes a rotor, a coil and a ball bearing. The rotor is sleeved on the outer side of the shaft end and is keyed to the shaft end. The stator is sleeved on the outer side of the rotor and is rotatably connected to the rotor. The stator is assembled on the outer side of the shaft end through the rotor. The coil is arranged between the stator and the rotor and is sleeved with the stator. The coil is located at one end of the stator and is sleeved with the stator through a groove structure at the end of the stator. The ball bearing is arranged on the outer side of one end of the rotor away from the coil and is sleeved with the rotor. The ball bearing is located between the rotor and the stator. The stator is rotatably connected to the rotor through the ball bearing.

[0008] It also includes a positioning ring, which is sleeved on one end of the rotor corresponding to the ball bearing, and the positioning ring is located on the outside of the ball bearing.

[0009] The end of the rotor away from the ball bearing is a mounting end face, the inner side of the mounting end face is provided with a mounting groove and the mounting groove is arranged in a ring shape, the middle part of the rotor is provided with an axial end through hole, one side of the axial end through hole is provided with a keyway, and the rotor is connected to the axial end key through the axial end through hole and the keyway.

[0010] It also includes a cast copper ring, which is arranged at the installation groove of the rotor and is embedded in the rotor. The cast copper ring is arranged in an annular structure and passes through the installation end surface of the rotor.

[0011] The response mechanism includes a response armature and a connecting plate. The response armature is arranged on one side of the mounting end surface of the rotor and is coaxially arranged with the rotor. A spacing is left between the response armature and the rotor. The connecting plate is arranged on the side of the response armature away from the rotor and is fixedly connected to the response armature through positioning rivets.

[0012] It also includes a plate spring, which is arranged between the rotor and the response armature and has two ends respectively abutting against the rotor and the response armature.

[0013] The clutch mechanism includes a rotating gear ring and a response gear ring, wherein the rotating gear ring is arranged on the outer side of the mounting end surface of the rotor and is fixedly connected to the rotor, the response gear ring is arranged on the outer side of the connecting plate and is sleevedly connected to the connecting plate, the response armature is fixedly connected to the response gear ring through the connecting plate, and the response gear ring is arranged opposite to the rotating gear ring and a tooth structure is arranged on one side close to the other.

[0014] The rotating gear ring, the responding gear ring and the connecting plate are all made of non-magnetic materials.

[0015] It also includes a connecting wire, which is arranged on one side of the stator and fixedly connected to the stator, and the connecting wire is electrically connected to the coil.

[0016] The beneficial effects of the utility model are:

[0017] It is equipped with a rotating mechanism, and the mounting end face of the rotor is arranged with an annular cast copper structure, which can meet the clutch installation requirements while ensuring its installation stability, and can effectively increase the magnetic flux of the clutch, improve the demagnetization effect of the clutch, and cooperate with the response mechanism and the clutch mechanism to effectively shorten the clutch response time, reduce the clutch delay, and have high clutch accuracy, avoiding the clutch from stalling during the clutch process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the cooperation between the rotating mechanism and the stator of the utility model;

[0020] Figure 3 It is a schematic diagram of the cooperation between the rotor and the cast copper ring of the utility model.

[0021] In the figure: 1. stator; 2. rotor; 3. coil; 4. ball bearing; 5. positioning ring; 6. mounting groove; 7. cast copper ring; 8. response armature; 9. connecting plate; 10. plate spring; 11. rotating gear ring; 12. response gear ring; 13. connecting wire. DETAILED DESCRIPTION

[0022] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0023] An electromagnetic clutch with a cast copper structure includes a stator 1, which is assembled at the end of a shaft, a rotating mechanism for improving the response speed of the clutch, a response mechanism for responding to the clutch mechanism, and a clutch mechanism for transmitting or disconnecting power. The rotating mechanism is arranged on the inner side of the stator 1, the response mechanism is arranged at one end of the rotating mechanism, and the clutch mechanism is assembled on the outer sides of the rotating mechanism and the response mechanism. The overall structural schematic diagram of the utility model is as shown in FIG. Figure 1 shown.

[0024] The rotating mechanism includes a rotor 2, a coil 3 and a ball bearing 4. The rotor 2 is sleeved on the outer side of the shaft end and is keyed to the shaft end. The stator 1 is sleeved on the outer side of the rotor 2 and is rotatably connected to the rotor 2. The stator 1 is assembled on the outer side of the shaft end through the rotor 2. The coil 3 is arranged between the stator 1 and the rotor 2 and is sleeved with the stator 1. The coil 3 is located at one end of the stator 1 and is sleeved with the stator 1 through a groove structure at the end of the stator 1. The ball bearing 4 is arranged on the outer side of the end of the rotor 2 away from the coil 3 and is sleeved with the rotor 2. The ball bearing 4 is located between the rotor 2 and the stator 1. The stator 1 is rotatably connected to the rotor 2 through the ball bearing 4. The end of the rotor 2 away from the ball bearing 4 is a mounting end face. The mounting end face The inner side of the rotor 2 is provided with a mounting groove 6, and the mounting groove 6 is set in a ring shape. The middle part of the rotor 2 is provided with a shaft end through hole, and one side of the shaft end through hole is provided with a keyway. The rotor 2 is connected to the shaft end key through the shaft end through hole and the keyway. The rotor 2 is used to provide rotation support for the stator 1, and the stator 1 is used to cooperate with the rotor 2 to form a magnetic pole to attract the response mechanism. The coil 3 is used to generate attraction under the action of the rotor 2 and the stator 1 to attract the response mechanism. The ball bearing 4 is used to realize the rotation connection between the rotor 2 and the stator 1. The mounting groove 6 is used as a mounting structure on the mounting end surface of the rotor 2, thereby providing an installation space for the cast copper ring 7. The schematic diagram of the cooperation between the rotating mechanism of the utility model and the stator 1 is shown in Figure 2 shown.

[0025] It also includes a positioning ring 5, which is sleeved on one end of the rotor 2 corresponding to the ball bearing 4, and the positioning ring 5 is located on the outside of the ball bearing 4, wherein the positioning ring 5 is used to position the ball bearing 4 to prevent the ball bearing 4 from falling off the rotor 2.

[0026] The utility model also includes a cast copper ring 7, which is arranged at the mounting groove 6 of the rotor 2 and is embedded and connected with the rotor 2. The cast copper ring 7 is arranged as an annular structure and penetrates the mounting end surface of the rotor 2. The cast copper ring 7 is used as a cast copper structure at the mounting end surface of the rotor 2, which can effectively improve the magnetic flux of the clutch, thereby improving the demagnetization effect of the clutch to shorten the clutch response time. The schematic diagram of the cooperation between the rotor 2 and the cast copper ring 7 of the utility model is shown in Figure 3 shown.

[0027] The response mechanism includes a response armature 8 and a connecting plate 9. The response armature 8 is arranged on one side of the mounting end surface of the rotor 2 and is coaxially arranged with the rotor 2. A spacing is left between the response armature 8 and the rotor 2. The connecting plate 9 is arranged on the side of the response armature 8 away from the rotor 2 and is fixedly connected to the response armature 8 by positioning rivets. The response mechanism responds to the clutch to adjust the working state of the clutch mechanism through the cooperation of the response armature 8 and the connecting plate 9, wherein the response armature 8 is used to respond to the clutch to adjust the working state of the clutch mechanism, and the connecting plate 9 is used to realize the installation connection between the response armature 8 and the clutch mechanism.

[0028] It also includes a plate spring 10, which is arranged between the rotor 2 and the response armature 8 and has its two ends respectively abutting against the rotor 2 and the response armature 8. The plate spring 10 is used to reset the response armature 8 to a released position after the current is disconnected, so that the response armature 8 is away from the rotor 2 to disconnect the response gear ring 12 from the rotating gear ring 11.

[0029] The clutch mechanism includes a rotating gear ring 11 and a response gear ring 12. The rotating gear ring 11 is arranged on the outer side of the mounting end surface of the rotor 2 and is fixedly connected to the rotor 2. The response gear ring 12 is arranged on the outer side of the connecting plate 9 and is connected to the connecting plate 9 in a sleeve. The response armature 8 is fixedly connected to the response gear ring 12 through the connecting plate 9. The response gear ring 12 is arranged opposite to the rotating gear ring 11 and a tooth structure is arranged on the side close to the two. The rotating gear ring 11, the response gear ring 12 and the connecting plate 9 are all made of non-magnetic materials. The clutch mechanism cooperates with the rotating gear ring 11 and the response gear ring 12. , forming a clutch structure on the outside of the rotating mechanism and the responding mechanism to realize power transmission or disconnection, wherein the rotating gear ring 11 is used as a clutch structure on the outside of the rotating mechanism and the responding mechanism, and the responding gear ring 12 is used as a transmission structure on the outside of the responding mechanism. When the rotating gear ring 11 is meshed and connected with the responding gear ring 12, power transmission can be realized. When the rotating gear ring 11 is disengaged from the responding gear ring 12, power disconnection is realized. The rotating gear ring 11, the responding gear ring 12 and the connecting plate 9 made of non-magnetic materials do not form a magnetic circuit to avoid magnetic interference during the working process.

[0030] It also includes a connecting wire 13, which is arranged on one side of the stator 1 and fixedly connected to the stator 1. The connecting wire 13 is electrically connected to the coil 3, wherein the connecting wire 13 is used to connect the coil 3 to an external power source, thereby energizing the coil 3.

[0031] Working principle:

[0032] The clutch is assembled at the shaft end that needs to be transmitted. In the working state, after the coil 3 is energized, a magnetic flux is generated, and a magnetic circuit is formed between the stator 1, the rotor 2, and the response armature 8. The response armature 8 is attracted by the magnetic circuit to fit closely with the rotor 2. At the same time, the teeth of the response gear ring 12 fixed on the response armature 8 are meshed with the teeth of the rotating gear ring 11 fixed on the rotor 2. At this time, the plate spring 10 is in a compressed state, and the transmission of the shaft end power and the torque can be realized through the meshing of the response gear ring 12 and the rotating gear ring 116. After the power is disconnected, the magnetic flux disappears, and the compressed plate spring 10 releases the elastic force to reset the response armature 8, so that the response armature 8 is separated from the rotor 2. At the same time, the teeth of the response gear ring 127 are separated from the teeth of the rotating gear ring 11 fixed on the rotor 2, and the shaft end power is disconnected. In the working process of the clutch, the cast copper ring 7 can effectively increase the magnetic flux of the clutch, thereby the demagnetization effect of the clutch, and cooperate with the response mechanism and the clutch mechanism to effectively shorten the clutch response time and reduce the clutch delay.

[0033] The beneficial effect of the utility model is that it is provided with a rotating mechanism, and the mounting end face of the rotor is arranged with an annular cast copper structure, which can meet the clutch installation requirements while ensuring its installation stability, and it can effectively improve the magnetic flux of the clutch, improve the demagnetization effect of the clutch, and cooperate with the response mechanism and the clutch mechanism to effectively shorten the clutch response time, reduce the clutch delay, and have high clutch accuracy, avoiding the clutch from stalling during the clutch process.

[0034] The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. An electromagnetic clutch with a cast copper structure, comprising a stator (1), the stator (1) being mounted on a shaft end, characterized in that: It also includes a rotating mechanism for increasing the clutch response speed, a response mechanism for responding to the clutch mechanism, and a clutch mechanism for transmitting or disconnecting power. The rotating mechanism is arranged on the inner side of the stator (1), the response mechanism is arranged at one end of the rotating mechanism, and the clutch mechanism is assembled on the outer sides of the rotating mechanism and the response mechanism.

2. An electromagnetic clutch with a cast copper structure as claimed in claim 1, characterized in that: The rotating mechanism comprises a rotor (2), a coil (3) and a ball bearing (4); the rotor (2) is sleeved on the outer side of a shaft end and key-connected to the shaft end; the stator (1) is sleeved on the outer side of the rotor (2) and rotatably connected to the rotor (2); the stator (1) is assembled on the outer side of the shaft end through the rotor (2); the coil (3) is arranged between the stator (1) and the rotor (2) and sleeved with the stator (1); the coil (3) is located at one end of the stator (1) and sleeved with the stator (1) through a groove structure at the end of the stator (1); the ball bearing (4) is arranged on the outer side of one end of the rotor (2) away from the coil (3) and sleeved with the rotor (2); the ball bearing (4) is located between the rotor (2) and the stator (1); and the stator (1) is rotatably connected to the rotor (2) through the ball bearing (4).

3. An electromagnetic clutch with a cast copper structure as claimed in claim 2, characterized in that: It also comprises a positioning ring (5), wherein the positioning ring (5) is sleeved on one end of the rotor (2) corresponding to the ball bearing (4), and the positioning ring (5) is located on the outside of the ball bearing (4).

4. The electromagnetic clutch with a cast copper structure as claimed in claim 3, characterized in that: The end of the rotor (2) away from the ball bearing (4) is a mounting end face, a mounting groove (6) is provided on the inner side of the mounting end face, and the mounting groove (6) is arranged in a ring shape, a shaft end through hole is provided in the middle of the rotor (2), a keyway is provided on one side of the shaft end through hole, and the rotor (2) is connected to the shaft end key via the shaft end through hole and the keyway.

5. The electromagnetic clutch with a cast copper structure as claimed in claim 4, characterized in that: It also comprises a cast copper ring (7), which is arranged at the mounting groove (6) of the rotor (2) and is embedded and connected to the rotor (2), and the cast copper ring (7) is arranged in an annular structure and passes through the mounting end surface of the rotor (2).

6. The electromagnetic clutch with a cast copper structure as claimed in claim 5, characterized in that: The response mechanism comprises a response armature (8) and a connection plate (9); the response armature (8) is arranged on one side of the mounting end surface of the rotor (2) and is coaxially arranged with the rotor (2); a distance is left between the response armature (8) and the rotor (2); the connection plate (9) is arranged on a side of the response armature (8) away from the rotor (2) and is fixedly connected to the response armature (8) via a positioning rivet.

7. The electromagnetic clutch with a cast copper structure as claimed in claim 6, characterized in that: It also includes a plate-shaped spring (10), which is arranged between the rotor (2) and the response armature (8) and has two ends respectively abutting against the rotor (2) and the response armature (8).

8. The electromagnetic clutch with a cast copper structure as claimed in claim 7, characterized in that: The clutch mechanism comprises a rotating gear ring (11) and a response gear ring (12); the rotating gear ring (11) is arranged outside the mounting end surface of the rotor (2) and is fixedly connected to the rotor (2); the response gear ring (12) is arranged outside the connecting plate (9) and is sleeve-connected to the connecting plate (9); the response armature (8) is fixedly connected to the response gear ring (12) via the connecting plate (9); the response gear ring (12) and the rotating gear ring (11) are arranged opposite to each other, and a tooth structure is arranged on one side close to the other.

9. An electromagnetic clutch with a cast copper structure as claimed in claim 8, characterized in that: The rotating gear ring (11), the responding gear ring (12) and the connecting plate (9) are all made of non-magnetic materials.

10. The electromagnetic clutch with a cast copper structure as claimed in claim 9, characterized in that: It also comprises a connecting wire (13), wherein the connecting wire (13) is arranged on one side of the stator (1) and is fixedly connected to the stator (1), and the connecting wire (13) is electrically connected to the coil (3).

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