Jaw type electromagnetic clutch structure

Abstract

The utility model discloses a jaw electromagnetic clutch structure, which comprises a clutch body assembled at a shaft end, a transmission mechanism used for realizing shaft end transmission, a response mechanism used for controlling the working state of the transmission mechanism, and a positioning mechanism used for accurately positioning the response mechanism, the electromagnetic clutch has the advantages that the transmission mechanism is arranged on the outer side of the clutch body, the response mechanism is arranged on the inner side of the transmission mechanism, and the positioning mechanism is arranged on the side portion of the response mechanism. The positioning mechanism is arranged, corresponding mechanisms can be accurately positioned, no installation gap exists, the positioning precision is high, the slipping phenomenon in the working process is avoided, and therefore the power output efficiency of the engine is guaranteed, and the stability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of electromagnetic clutches, in particular to a tooth-type electromagnetic clutch structure. Background Art

[0002] In the prior art, the clutch plays a role in 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 high-speed rotation wear on the internal pressure plate. The position of the pressure plate is offset after vibration and impact, resulting in unstable conversion signal output. The pressure plate is installed inside the electromagnetic clutch through a slot opened on its side. In the process of cutting off or transmitting power, there is an installation gap between the slot of the pressure plate and the clutch. Slipping may occur during operation, thereby reducing the efficiency of the engine power output. In addition, the pressure plate is difficult to disassemble and repair, which can easily lead to the overall scrapping of the electromagnetic clutch.

[0003] The Chinese utility model patent with application number: 202320399133.5 discloses a tooth-type electromagnetic clutch mechanism, including: an input shaft, an output gear, a pawl, an electromagnet, and an armature. The input shaft is provided with spline teeth, the output gear is sleeved on the input shaft and rotates freely on the input shaft, the outer teeth of the output gear are meshed with the transmission shaft system through gears, and the end face of one side of the output gear is provided with first end face canine teeth arranged in a ring-shaped manner. The pawl is cylindrical and sleeved on the input shaft. A spline hole is provided in the center to cooperate with the spline teeth of the input shaft, and a second end face canine tooth is provided on the end face to cooperate with the first end face canine tooth of the output gear; the pawl and the output gear are kept apart by a reset component, the electromagnet is sleeved on the outside of the pawl, and the armature is fixedly connected to the pawl. When the electromagnet is energized, the armature drives the pawl to move toward the output gear. However, the pawl in this type of tooth-type electromagnetic clutch mechanism is installed inside the electromagnetic clutch through a slot opened on its side. In the process of cutting off or transmitting power, there is an installation gap between the slot of the pressure plate and the clutch. Slipping may occur during operation, thereby reducing the efficiency of the engine power output and having poor stability. In addition, the pressure plate is difficult to disassemble and repair, which can easily lead to the overall failure of the electromagnetic clutch. Utility Model Content

[0004] The utility model aims to provide a tooth-type electromagnetic clutch structure.

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

[0006] A tooth-type electromagnetic clutch structure includes a clutch body, which is assembled on the end of a shaft, a transmission mechanism for realizing shaft end transmission, a response mechanism for controlling the working state of the transmission mechanism, and a positioning mechanism for accurately positioning the response mechanism. The transmission mechanism is assembled on the outside of the clutch body, the response mechanism is arranged on the inside of the transmission mechanism, and the positioning mechanism is configured on the side of the response mechanism.

[0007] The clutch body includes a rotor, a stator and a coil. 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 rotationally connected to 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.

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

[0009] The end of the rotor away from the ball bearing is set as a mounting flange structure, and the end of the stator close to the coil is set as a mounting groove structure. The coil is located between the mounting flange structure and the mounting groove structure, and the mounting flange structure and the mounting groove structure are interlocked.

[0010] The transmission mechanism includes a rotating gear ring and a response gear ring. The rotating gear ring is arranged on the outer side of one end of the rotor provided with a mounting flange structure and is fixedly connected to the rotor. The response gear ring is arranged on the outer side of the response mechanism. The response gear ring is arranged opposite to the rotating gear ring and a tooth structure is arranged on the side close to the two.

[0011] The response mechanism includes a response armature and a connecting plate, wherein the response armature is arranged on the inner side of the response gear ring and fixedly connected to the response gear ring, the response armature is arranged on the side of the response gear ring close to the rotor and has a spacing between it and the rotor, the connecting plate is arranged on the side of the response armature away from the rotor and fixedly connected to the response armature through a positioning mechanism, the connecting plate is located on the inner side of the response gear ring and is embedded in the response gear ring, and the response armature is fixedly connected to the response gear ring through the connecting plate.

[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 positioning mechanism includes positioning through holes and positioning rivets. The positioning through holes are provided in several groups. The positioning through holes are evenly spaced and arranged around the side of the response armature and penetrate the response armature. The positioning rivets are provided in several groups corresponding to the positioning through holes. The positioning rivets are respectively arranged in the positioning through holes and penetrate the corresponding positioning through holes and the connecting plate. The response armature is fixedly connected to the connecting plate through the positioning through holes and the positioning rivets.

[0014] It also includes a connecting wire, which is arranged on one side of the stator and fixedly connected to the stator.

[0015] The rotating gear ring, the responding gear ring and the connecting plate are all made of non-magnetic materials.

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

[0017] It is equipped with a transmission mechanism and a response mechanism, with high assembly accuracy, fast assembly speed, and easy disassembly and maintenance, which can effectively avoid the overall scrapping of the electromagnetic clutch. It is equipped with a positioning mechanism, which can accurately position the corresponding mechanism, has no installation gap, and has high positioning accuracy, avoiding slipping during operation, thereby ensuring the efficiency of the engine power output and having strong stability. 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 rotor and the stator of the utility model;

[0020] Figure 3 It is a structural schematic diagram of the positioning mechanism of the utility model.

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

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

[0023] A tooth-type electromagnetic clutch structure includes a clutch body, which is assembled on the shaft end, a transmission mechanism for realizing shaft end transmission, a response mechanism for controlling the working state of the transmission mechanism, and a positioning mechanism for accurately positioning the response mechanism. The transmission mechanism is assembled on the outside of the clutch body, the response mechanism is arranged on the inside of the transmission mechanism, and the positioning mechanism is arranged on the side of the response mechanism. The overall structure schematic diagram of the utility model is shown as follows Figure 1 shown.

[0024] The clutch body includes a rotor 1, a stator 2 and a coil 3. The rotor 1 is sleeved on the outside of the shaft end and is keyed to the shaft end. The stator 2 is sleeved on the outside of the rotor 1 and is rotatably connected to the rotor 1. The coil 3 is arranged between the stator 2 and the rotor 1 and is sleeved with the stator 2. The coil 3 is located at one end of the stator 2. The rotor 1 is used to provide rotation support for the stator 2. The stator 2 is used to cooperate with the rotor 1 to form a magnetic pole to attract the response mechanism. The coil 3 is used to generate attraction under the action of the rotor 1 and the stator 2 to attract the response mechanism. The schematic diagram of the cooperation between the rotor 1 and the stator 2 of the utility model is shown in FIG. Figure 2 shown.

[0025] It also includes a ball bearing 4 and a positioning ring 5. The ball bearing 4 is arranged on the outside of one end of the rotor 1 away from the coil 3 and is sleeved with the rotor 1. The ball bearing 4 is located between the rotor 1 and the stator 2. The stator 2 is rotatably connected to the rotor 1 through the ball bearing 4. The positioning ring 5 is sleeved on one end of the rotor 1 corresponding to the ball bearing 4. The positioning ring 5 is located on the outside of the ball bearing 4. The end of the rotor 1 away from the ball bearing 4 is set as a mounting convex edge structure, and the end of the stator 2 close to the coil 3 is set as a mounting groove structure. The coil 3 is located between the mounting convex edge structure and the mounting groove structure, and the mounting convex edge structure and the mounting groove structure are interlocked. The ball bearing 4 is used to realize the rotational connection between the rotor 1 and the stator 2, and the positioning ring 5 is used to position the ball bearing 4 to prevent the ball bearing 4 from falling off the rotor 1.

[0026] The transmission mechanism includes a rotating gear ring 6 and a response gear ring 7. The rotating gear ring 6 is arranged on the outer side of one end of the rotor 1 provided with a mounting convex edge structure and is fixedly connected to the rotor 1. The response gear ring 7 is arranged on the outer side of the response mechanism. The response gear ring 7 and the rotating gear ring 6 are arranged opposite to each other and a tooth structure is arranged on the side close to each other. The transmission mechanism cooperates with the rotating gear ring 6 and the response gear ring 7 to form a transmission structure on the clutch body and the outer side of the response mechanism to achieve power transmission or disconnection, wherein the rotating gear ring 6 is used as the transmission structure on the outer side of the clutch body, and the response gear ring 7 is used as the transmission structure on the outer side of the response mechanism. When the rotating gear ring 6 is meshed with the response gear ring 7, power transmission can be achieved. When the rotating gear ring 6 is disengaged from the response gear ring 7, power disconnection is achieved.

[0027] The response mechanism includes a response armature 8 and a connecting plate 9. The response armature 8 is arranged on the inner side of the response gear ring 7 and is fixedly connected to the response gear ring 7. The response armature 8 is arranged on the side of the response gear ring 7 close to the rotor 1 and has a spacing between it and the rotor 1. The connecting plate 9 is arranged on the side of the response armature 8 away from the rotor 1 and is fixedly connected to the response armature 8 through a positioning mechanism. The connecting plate 9 is located on the inner side of the response gear ring 7 and is embedded in the response gear ring 7. The response armature 8 is fixedly connected to the response gear ring 7 through the connecting plate 9. The response mechanism cooperates with the response armature 8 and the connecting plate 9 to respond to the clutch to adjust the working state of the transmission mechanism, wherein the response armature 8 is used to respond to the clutch to adjust the working state of the transmission mechanism, and the connecting plate 9 is used to realize the installation connection between the response armature 8 and the response gear ring 7.

[0028] It also includes a plate spring 10, which is arranged between the rotor 1 and the response armature 8 and has its two ends respectively abutting against the rotor 1 and the response armature 8, wherein 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 1 to disconnect the response gear ring 7 from the rotating gear ring 6.

[0029] The positioning mechanism includes a positioning through hole 11 and a positioning rivet 12. The positioning through holes 11 are provided with a plurality of groups. The plurality of groups of positioning through holes 11 are evenly spaced and arranged around the side of the response armature 8 and penetrate the response armature 8. The positioning rivets 12 are provided with a plurality of groups corresponding to the plurality of groups of positioning through holes 11. The plurality of groups of positioning rivets 12 are respectively arranged in the plurality of groups of positioning through holes 11 and penetrate the corresponding positioning through holes 11 and the connecting plate 9. The response armature 8 is fixedly connected to the connecting plate 9 through the positioning through holes 11 and the positioning rivets 12. The positioning mechanism cooperates with the positioning through holes 11 and the positioning rivets 12 to realize the installation connection between the response armature 8 and the connecting plate 9, wherein the positioning through holes 11 are used as the positioning structure on the response armature 8, and the positioning rivets 12 are used to realize the installation connection between the response armature 8 and the connecting plate 9, thereby effectively improving the assembly stability between the response armature 8 and the connecting plate 9, and avoiding the deflection between the response armature 8 and the connecting plate 9 in the connected state to affect the efficiency of the power output. The structural schematic diagram of the positioning mechanism of the utility model is shown as follows Figure 3 shown.

[0030] It also includes a connecting wire 13, which is arranged on one side of the stator 2 and fixedly connected to the stator 2. 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] The rotating gear ring 6, the responding gear ring 7 and the connecting plate 9 are all made of non-magnetic materials, wherein the rotating gear ring 6, the responding gear ring 7 and the connecting plate 9 made of non-magnetic materials do not form a magnetic circuit to avoid magnetic interference during the working process.

[0032] Working principle:

[0033] 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 among the stator 2, the rotor 1, and the response armature 8. The response armature 8 is attracted by the magnetic circuit to fit tightly with the rotor 1. At the same time, the teeth of the response gear ring 7 fixed on the response armature 8 are meshed with the teeth of the rotating gear ring 6 fixed on the rotor 1. 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 7 and the rotating gear ring 6. 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 1. At the same time, the teeth of the response gear ring 7 are disengaged from the teeth of the rotating gear ring 6 fixed on the rotor 1, and the shaft end power is disconnected.

[0034] The beneficial effects of the utility model are that a transmission mechanism and a response mechanism are coordinated, the assembly precision is high, the assembly speed is fast, the disassembly and maintenance are convenient, and the overall scrapping of the electromagnetic clutch is effectively avoided. A positioning mechanism is provided, which can accurately position the corresponding mechanism, has no installation gap, has high positioning precision, and avoids slipping during operation, thereby ensuring the efficiency of the engine power output and having relatively strong stability.

[0035] 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. A tooth-type electromagnetic clutch structure, comprising a clutch body, the clutch body being assembled on a shaft end, characterized in that: It also includes a transmission mechanism for realizing shaft end transmission, a response mechanism for controlling the working state of the transmission mechanism, and a positioning mechanism for accurately positioning the response mechanism. The transmission mechanism is assembled on the outside of the clutch body, the response mechanism is arranged on the inside of the transmission mechanism, and the positioning mechanism is configured on the side of the response mechanism.

2. A tooth-type electromagnetic clutch structure as claimed in claim 1, characterized in that: The clutch body comprises a rotor (1), a stator (2) and a coil (3); the rotor (1) is sleeved on the outer side of a shaft end and is keyed to the shaft end; the stator (2) is sleeved on the outer side of the rotor (1) and is rotationally connected to the rotor (1); the coil (3) is arranged between the stator (2) and the rotor (1) and is sleeved with the stator (2); and the coil (3) is located at one end of the stator (2).

3. A tooth-type electromagnetic clutch structure as claimed in claim 2, characterized in that: The invention also comprises a ball bearing (4) and a positioning ring (5), wherein the ball bearing (4) is arranged on the outer side of one end of the rotor (1) away from the coil (3) and is sleeved with the rotor (1), the ball bearing (4) is located between the rotor (1) and the stator (2), the stator (2) is rotatably connected to the rotor (1) via the ball bearing (4), and the positioning ring (5) is sleeved on one end of the rotor (1) corresponding to the ball bearing (4), and the positioning ring (5) is located on the outer side of the ball bearing (4).

4. A tooth-type electromagnetic clutch structure as claimed in claim 3, characterized in that: The end of the rotor (1) away from the ball bearing (4) is provided as a mounting flange structure, the end of the stator (2) close to the coil (3) is provided as a mounting groove structure, the coil (3) is located between the mounting flange structure and the mounting groove structure, and the mounting flange structure and the mounting groove structure are interlocked.

5. A tooth-type electromagnetic clutch structure as claimed in claim 4, characterized in that: The transmission mechanism comprises a rotating gear ring (6) and a response gear ring (7); the rotating gear ring (6) is arranged on the outer side of one end of the rotor (1) provided with a mounting flange structure and is fixedly connected to the rotor (1); the response gear ring (7) is arranged on the outer side of the response mechanism; the response gear ring (7) and the rotating gear ring (6) are arranged opposite each other, and a tooth structure is arranged on one side close to the other.

6. A tooth-type electromagnetic clutch structure as claimed in claim 5, characterized in that: The response mechanism comprises a response armature (8) and a connecting plate (9); the response armature (8) is arranged on the inner side of the response toothed ring (7) and fixedly connected to the response toothed ring (7); the response armature (8) is arranged on a side of the response toothed ring (7) close to the rotor (1) and a distance is left between the response armature (8) and the rotor (1); the connecting plate (9) is arranged on a side of the response armature (8) away from the rotor (1) and fixedly connected to the response armature (8) via a positioning mechanism; the connecting plate (9) is located on the inner side of the response toothed ring (7) and is embedded and connected to the response toothed ring (7); the response armature (8) is fixedly connected to the response toothed ring (7) via the connecting plate (9).

7. A tooth-type electromagnetic clutch structure as claimed in claim 6, characterized in that: It also includes a plate-shaped spring (10), which is arranged between the rotor (1) and the response armature (8) and has two ends respectively abutting against the rotor (1) and the response armature (8).

8. A tooth-type electromagnetic clutch structure as claimed in claim 7, characterized in that: The positioning mechanism comprises a positioning through hole (11) and a positioning rivet (12). The positioning through holes (11) are provided in a plurality of groups. The plurality of groups of positioning through holes (11) are evenly spaced and arranged around the side of the response armature (8) and penetrate the response armature (8). The positioning rivets (12) are provided in a plurality of groups corresponding to the plurality of groups of positioning through holes (11). The plurality of groups of positioning rivets (12) are respectively arranged in the plurality of groups of positioning through holes (11) and penetrate the corresponding positioning through holes (11) and the connecting plate (9). The response armature (8) is fixedly connected to the connecting plate (9) through the positioning through holes (11) and the positioning rivets (12).

9. A tooth-type electromagnetic clutch structure as claimed in claim 8, characterized in that: It also comprises a connecting wire (13), wherein the connecting wire (13) is arranged on one side of the stator (2) and is fixedly connected to the stator (2).

10. A tooth-type electromagnetic clutch structure as claimed in claim 9, characterized in that: The rotating gear ring (6), the responding gear ring (7) and the connecting plate (9) are all made of non-magnetic materials.

Images