CN219413326U - Jaw electromagnetic clutch mechanism - Google Patents

Abstract

The utility model discloses a jaw electromagnetic clutch mechanism, comprising: input shaft, output gear, pawl, electro-magnet, 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 a shaft system to be driven through gears, and the end face of one side of the output gear is provided with annular first end face dog teeth which are uniformly distributed. The pawl is cylindrical and sleeved on the input shaft, a spline hole is formed in the center of the pawl and matched with spline teeth of the input shaft, and a second end face dog tooth is arranged on the end face of the pawl and matched with a first end face dog tooth of the output gear; the pawl is spaced from the output gear by a reset member. The electromagnet is sleeved on the outer side of the pawl, the armature is fixedly connected with the pawl, and when the electromagnet is electrified, the armature drives the pawl to move towards the output gear. The utility model omits a complex hydraulic system, greatly simplifies the structure and reduces the cost. Meanwhile, the electromagnetic clutch has higher reaction speed and very small drag loss.

Description

Jaw electromagnetic clutch mechanism

Technical Field

The utility model relates to the technical field of transmission parts of gearboxes, in particular to a jaw electromagnetic clutch mechanism for switching connection states among shafting.

Background

At present, a new energy automobile is widely adopted as a hybrid gearbox, and series-parallel hybrid can be realized. As a high-integration, high-efficiency and multi-mode oil-electricity hybrid system, a double-motor hybrid technology is adopted to realize the balance of high efficiency and high performance in full-speed domain and full scene.

The clutch plays a role in controlling power cut-off or transmission among shafting in the hybrid power system, is arranged on an input shaft, a motor shaft of a driving motor and an intermediate shaft of an automobile engine, and performs gear shifting or participation of a control power source.

Most of mixed dynamic schemes in the industry at present adopt a hydraulic system as a power source and an actuating mechanism of an engine gear, and the hydraulic system is complex in arrangement and high in cost; meanwhile, the hydraulic clutch has low response speed, so that the driver has a sense of pause during running and drag loss.

Disclosure of Invention

Aiming at the defects existing in the prior art, the utility model aims to provide the jaw electromagnetic clutch mechanism which improves the response speed, efficiently and stably transmits and switches power so as to avoid the adverse factors of a hydraulic clutch and better develop a mixed motion technical scheme.

In order to achieve the above object, the present utility model provides a jaw electromagnetic clutch mechanism comprising:

an input shaft provided with spline teeth,

the output gear is sleeved on the input shaft, rotates freely on the input shaft, the external teeth of the output gear are meshed with a shaft system to be driven through gears, the end face of one side of the output gear is provided with first end face dog teeth which are distributed annularly and uniformly,

the pawl is cylindrical and sleeved on the input shaft, a spline hole is formed in the center of the pawl and matched with spline teeth of the input shaft, and a second end face dog tooth is arranged on the end face of the pawl and matched with a first end face dog tooth of the output gear; the pawl is spaced from the output gear by a reset member,

the electromagnet and the armature are sleeved on the outer side of the pawl, the armature is fixedly connected with the pawl, and when the electromagnet is electrified, the armature drives the pawl to move towards the output gear.

According to the jaw electromagnetic clutch mechanism of the further embodiment of the utility model, the reset component is a spring, the spring is sleeved on the input shaft, and the two ends of the spring are respectively attached to the end faces of the output gear and the pawl.

According to a further embodiment of the utility model or of any of the preceding embodiments, the input shaft is further provided with a further gear coupled to the further shaft.

According to still another embodiment of the present utility model or any of the foregoing embodiments, the input shaft is provided with two grooves, and a snap spring is inserted into the grooves, and the snap spring limits movement of the output gear and the armature.

According to a further embodiment of the present utility model or any of the preceding embodiments, the first end dog tooth is located between the central bore of the output gear and the outer gear, and the second end dog tooth is located on an end face of the pawl on a side remote from the armature.

According to a further embodiment of the utility model or any of the preceding embodiments, the armature is fixedly connected to the pawl by welding or riveting.

According to a further embodiment of the present utility model or any of the preceding embodiments, a thrust bearing is mounted between the output gear and the snap spring.

According to a further embodiment of the utility model or any of the preceding embodiments, a bearing is mounted between the output gear central bore and the journal of the input shaft.

The utility model has the following beneficial effects:

the utility model can replace the traditional hydraulic clutch and be used for a gearbox transmission system, in particular to a hybrid multimode architecture. The complex hydraulic system can be omitted, the structure is greatly simplified, and the cost is reduced. Meanwhile, the electromagnetic clutch has higher reaction speed and very small drag loss.

Drawings

FIG. 1 is a schematic perspective view of a dog electromagnetic clutch mechanism according to the present utility model;

FIG. 2 is a schematic cross-sectional view of a dog electromagnetic clutch mechanism according to the present utility model;

FIG. 3 is an enlarged schematic view of portion A of FIG. 2;

FIG. 4 is an exploded view of an assembly of a dog electromagnetic clutch mechanism according to the present utility model;

fig. 5 is an enlarged schematic perspective view of a pawl according to the present utility model.

In the figure: 1. an input shaft; 101. spline teeth;

2. an armature;

3. an electromagnet;

4. an output gear; 401. a first facial canine tooth;

5. a pawl; 501. a second facial canine tooth; 502. a spline hole;

6. a spring;

7. clamping springs;

8. a thrust bearing.

Detailed Description

The present utility model will now be described more fully hereinafter with reference to the accompanying drawings, in which illustrative embodiments of the utility model are shown. This utility model may, however, be embodied in different forms and should not be construed as limited to the embodiments set forth herein. The above-described embodiments are presented in order to provide a thorough and complete disclosure of the present utility model, and to provide a more complete and accurate understanding of the scope of the present utility model. Terms such as "comprising" and "including" mean that, in addition to having elements that are directly and explicitly recited in the description and claims, the inventive solution does not exclude the presence of other elements not directly or explicitly recited.

As shown in fig. 1 of the specification, a jaw electromagnetic clutch mechanism includes: an input shaft 1, an output gear 4, a pawl 5, an electromagnet 3 and an armature 2.

The input shaft 1 is provided with spline teeth 101 and the input shaft 1 may be provided with other gears coupled with other shafts.

As shown in fig. 2 of the specification, an output gear 4 is sleeved on an input shaft 1, and freely rotates on the input shaft 1, external teeth of the output gear 4 are meshed with a shaft system to be driven through gears, and first end face dog teeth 401 which are uniformly distributed in a ring shape are arranged on one end face of the output gear 4. Two grooves are formed in the input shaft 1, snap springs 7 are inserted into the grooves, and the movement of the output gear 4 and the armature 2 is limited by the snap springs 7. A thrust bearing 8 is arranged between the output gear 4 and the clamp spring 7, and a bearing is arranged between the central hole of the output gear 4 and the shaft neck of the input shaft 1.

As shown in fig. 2 and 4 of the specification, the pawl 5 is cylindrical and sleeved on the input shaft 1, a spline hole 502 is arranged in the center of the pawl to be matched with the spline teeth 101 of the input shaft 1, and a second end face dog tooth 501 is arranged on the end face of the pawl to be matched with the first end face dog tooth 401 of the output gear 4. The first end dog tooth 401 is located between the central bore of the output gear 4 and the outer gear and the second end dog tooth 501 is located on the side end of the pawl 5 remote from the armature 2.

As shown in fig. 3 and 5 of the specification, the pawl 5 and the output gear 4 are kept at intervals by a reset component, the reset component is preferably a spring 6, the spring 6 is sleeved on the input shaft 1, and two ends of the spring 6 are respectively attached to the end faces of the output gear 4 and the pawl 5.

As shown in figure 2 of the specification, the electromagnet 3 and the armature 2 are sleeved outside the pawl 5, the armature 2 is fixedly connected with the pawl 5, and the armature 2 and the pawl 5 can be fixedly connected through welding or riveting. When the electromagnet 3 is electrified, the armature 2 drives the pawl 5 to move towards the output gear 4.

The working principle of the utility model is as follows:

when the jaw electromagnetic clutch mechanism works, the state of disconnection is that: the pawl 5 keeps proper interval with the output gear 4 under the action of the return spring 6, the first end face dog tooth 401 of the output gear 4 is kept not contacted with the second end face dog tooth 501 of the pawl 5, at the moment, the output gear 4 is movably connected with the input shaft 1, rotation is not affected by each other, and at the moment, the pawl 5 is connected with the input shaft 1 through a spline, and the armature 2 and the pawl 5 rotate along with the input shaft 1; closed state: the electromagnet 3 is electrified, the armature 2 is attracted, the armature 2 drives the pawl 5 to move towards the electromagnet 3 along the horizontal direction of the spline, at the moment, the second end face dog teeth 501 of the pawl 5 are combined with the first end face dog teeth 401 of the output gear 4, the power of the input shaft 1 is transmitted to the output shaft through the pawl 5, and the output shaft and the input shaft 1 synchronously rotate.

It should be understood by those skilled in the art that the foregoing embodiments are merely illustrative of the technical concept and features of the present utility model, and the present utility model can be implemented by those skilled in the art without limiting the scope of the utility model, therefore, all equivalent changes or modifications that are made according to the spirit of the present utility model should be included in the scope of the present utility model.

Claims (8)

1. A jaw electromagnetic clutch mechanism, characterized in that: comprising the following steps:

an input shaft (1), the input shaft (1) being provided with spline teeth (101),

the output gear (4) is sleeved on the input shaft (1), rotates freely on the input shaft (1), the external teeth of the output gear (4) are meshed with a shaft system to be driven through gears, first end face dog teeth (401) which are annularly and uniformly distributed are arranged on one end face of one side of the output gear (4),

the pawl (5) is cylindrical and sleeved on the input shaft (1), a spline hole (502) is arranged in the center of the pawl to be matched with spline teeth (101) of the input shaft (1), and a second end face dog tooth (501) is arranged on the end face of the pawl to be matched with a first end face dog tooth (401) of the output gear (4); the pawl (5) is kept at a distance from the output gear (4) through a reset component,

the electromagnetic iron (3) and the armature (2), the electromagnet (3) is sleeved on the outer side of the pawl (5), the armature (2) is fixedly connected with the pawl (5), and when the electromagnet (3) is electrified, the armature (2) drives the pawl (5) to move towards the output gear (4).

2. The jaw electromagnetic clutch mechanism of claim 1, wherein: the reset part is a spring (6), the spring (6) is sleeved on the input shaft (1), and the two ends of the spring are respectively attached to the end faces of the output gear (4) and the pawl (5).

3. The jaw electromagnetic clutch mechanism of claim 1, wherein: the input shaft (1) is also provided with other gears which are connected with other shafts.

4. The jaw electromagnetic clutch mechanism according to claim 1 or 2, wherein: two grooves are formed in the input shaft (1), snap springs (7) are inserted into the grooves, and the snap springs (7) limit movement of the output gear (4) and the armature iron (2).

5. The jaw electromagnetic clutch mechanism of claim 1, wherein: the first end face dog tooth (401) is located between the central hole of the output gear (4) and the outer gear, and the second end face dog tooth (501) is located on one side end face of the pawl (5) away from the armature (2).

6. The jaw electromagnetic clutch mechanism of claim 1, wherein: the armature (2) is fixedly connected with the pawl (5) through welding or riveting.

7. The jaw electromagnetic clutch mechanism of claim 4, wherein: a thrust bearing (8) is arranged between the output gear (4) and the clamp spring (7).

8. The jaw electromagnetic clutch mechanism of claim 1, wherein: and a bearing is arranged between the central hole of the output gear (4) and the shaft neck of the input shaft (1).