Eccentric transmission type motor

Abstract

The utility model provides an eccentric transmission type motor, and belongs to the technical field of motors. The eccentric transmission type motor comprises a motor body, an eccentric transmission structure and an end cover, a gear shaft head is circumferentially formed at the working end of a main shaft in the center of the motor body, a primary motor end cover is mounted and connected to the front end of the motor body, a structural groove is formed in the outer side face, deviating from the main shaft, of the primary motor end cover, and an eccentric transmission structure is mounted in the structural groove and comprises an eccentric shaft and a gear disc arranged on the eccentric shaft in a sleeving mode. And the gear shaft head is meshed with the gear disc, so that the main shaft sequentially drives the gear disc and the eccentric shaft to rotate. The device has the advantages of being simple in structure, stable in operation and good in practicability.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric motors, and in particular relates to an eccentric transmission type electric motor. Background Art

[0002] An electric motor is a device that converts electrical energy into mechanical energy by generating a rotating magnetic field through stator windings, which acts on the rotor to create magneto-electrodynamic torque. Conventional electric motors typically have a main shaft located along the central axis of the stator and rotor, limiting their operation to a fixed direction. However, under certain operating conditions, conventional motors may need to operate in an eccentric direction.

[0003] In the prior art, patent publication number CN102106063B discloses an electric motor with an eccentric rotor, comprising a stator and an eccentric rotor. The stator includes a plurality of circumferentially distributed magnetic poles to define a closed cylindrical space. The rotor is generally cylindrical with a diameter smaller than that of the closed space. The rotor includes a plurality of circumferentially distributed magnetic poles. The rotor rotates within the closed space. In the region of electromagnetic interaction between the stator and the rotor, the evolutes of the stator magnetic poles and the rotor magnetic poles are of substantially the same length, and the rotational contact between the rotor and the stator occurs on an eccentric rotational track. Because this patent achieves eccentric operation through electromagnetic induction, it exhibits certain instability in practical applications. Utility Model Content

[0004] The purpose of the utility model is to provide an eccentric transmission motor in view of the above problems existing in the prior art.

[0005] The purpose of the utility model can be achieved by the following technical solutions: an eccentric transmission type electric motor, comprising a motor body, an eccentric transmission structure and an end cover; the end cover comprises a primary motor end cover and a secondary eccentric end cover; a working spindle extends from the center of the motor body, a gear shaft head is formed circumferentially on the working end of the spindle, a primary motor end cover is mounted on the front end of the motor body, the primary motor end cover wraps the gear shaft head of the spindle inside the primary motor end cover, a first bearing is sleeved and installed between the inner side of the primary motor end cover and the spindle, and a structural groove is formed on the outer side away from the spindle;

[0006] The eccentric transmission structure is installed in the structural groove, including an eccentric shaft located in the center of the structural groove, a gear plate is installed on the eccentric shaft in the structural groove, and second bearings are provided on the front and rear sides of the eccentric shaft. The gear shaft head of the main shaft is engaged with the gear plate, so that the main shaft drives the gear plate and the eccentric shaft to rotate in turn.

[0007] In the above-mentioned eccentric transmission motor, a shaft sleeve is provided on the eccentric shaft between the second bearing and the inner side wall of the secondary eccentric end cover.

[0008] In the above-mentioned eccentric transmission motor, the secondary eccentric end cover and the primary motor end cover are connected by fixing bolts, and a gasket is installed between the bolt head of the fixing bolt and the secondary eccentric end cover.

[0009] Compared with the prior art, the eccentric transmission motor provided by the utility model transmits mechanical energy by setting an eccentric transmission structure at one end of the main shaft, thereby realizing eccentric operation of the motor, with a simple structure, stable operation and good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a structural diagram of the eccentric transmission motor;

[0011] Figure 2 This is a schematic diagram of the internal structure of the eccentric transmission motor;

[0012] Figure 3 yes Figure 1 Structural cross-section view at AA in the middle;

[0013] Figure 4 yes Figure 1 Structural cross-section view at the middle BB;

[0014] In the above figure, 100, motor body; 110, main shaft; 111, gear shaft head; 112, first bearing; 200, eccentric transmission structure; 210, eccentric shaft; 220, gear plate; 230, second bearing; 240, bushing; 310, first-stage motor end cover; 320, second-stage eccentric end cover; 330, fixing bolt; 331, gasket. DETAILED DESCRIPTION

[0015] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0016] like Figures 1 to 4 As shown, the eccentric transmission motor includes a motor body 100, an eccentric transmission structure 200 and an end cover. The end cover includes a first-level motor end cover 310 and a second-level eccentric end cover 320. A main shaft 110 for working extends from the center of the motor body 100.

[0017] like Figures 2 to 3 As shown, the front end of the motor body 100 is connected to a first-stage motor end cover 310, and the first-stage motor end cover 310 is provided with structural ribs on the outside to enhance the structural strength, and a structural groove is formed at an upper side position deviating from the main shaft 110, and an eccentric transmission structure 200 is installed in the structural groove. The eccentric transmission structure 200 includes an eccentric shaft 210 located at the center of the structural groove and a gear plate 220 sleeved on the eccentric shaft 210.

[0018] Second bearings 230 are sleeved on the eccentric shaft 210 on both the front and rear sides of the gear plate 220 within the structural groove. The primary function of these bearings is to support the mechanical rotating body, reduce friction during its motion, and ensure rotational accuracy. The second bearings 230 prevent the primary motor end cover 310 and the secondary eccentric end cover 320 from being dragged along during the rotation of the eccentric shaft 210. A sleeve 240 is sleeved on the eccentric shaft 210 between the second bearing 230 and the inner wall of the secondary eccentric end cover 320. This sleeve 240 supports the shaft and limits the position of the second bearing 230. It also seals the center hole through which the eccentric shaft 210 passes through the center of the secondary eccentric end cover 320.

[0019] like Figure 2 and Figure 4 As shown, a gear shaft head 111 is formed circumferentially on the working end of the main shaft 110. The first-stage motor end cover 310 encloses the gear shaft head 111 of the main shaft 110. A first bearing 112 is installed between the inner side of the first-stage motor end cover 310 and the main shaft 110. The gear shaft head 111 of the main shaft 110 meshes with the gear plate 220, so that the main shaft 110 drives the gear plate 220 and the eccentric shaft 210 to rotate in turn.

[0020] Therefore, the eccentric motion principle process of the present invention is as follows: the main shaft 110 in the center of the motor body 100 rotates and runs, and the gear shaft head 111 and the gear plate 220 are engaged to drive the gear plate 220 to rotate and run. The gear plate 220 is sleeved on the eccentric shaft 210 and rotates synchronously with it, thereby driving the eccentric shaft 210 to rotate and run, realizing eccentric operation. It has a simple structure, stable operation, and good practicality in some environments with special requirements.

[0021] To further illustrate, the secondary eccentric end cover 320 and the primary motor end cover 310 are connected by a fixing bolt 330, and a gasket 331 is installed between the bolt head of the fixing bolt 330 and the secondary eccentric end cover 320, and the gasket 331 plays the role of buffering and tightening the connection.

[0022] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

[0023] Although various terms are used in this document, the possibility of using other terms is not excluded. These terms are used only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional restrictions is contrary to the spirit of the present invention.

Claims

1. An eccentric transmission motor, comprising a motor body (100), an eccentric transmission structure (200) and an end cover; characterized in that: The end cover comprises a first-stage motor end cover (310) and a second-stage eccentric end cover (320); a working main shaft (110) extends from the center of the motor body (100); a gear shaft head (111) is formed circumferentially on the working end of the main shaft (110); a first-stage motor end cover (310) is installed and connected to the front end of the motor body (100); the first-stage motor end cover (310) wraps the gear shaft head (111) of the main shaft (110) inside the first-stage motor end cover (310); a first bearing (112) is sleeved and installed between the inner side surface of the first-stage motor end cover and the main shaft (110); and a structural groove is formed on the outer side surface away from the main shaft (110); The eccentric transmission structure (200) is installed in the structural groove and includes an eccentric shaft (210) located at the center of the structural groove. A gear plate (220) is sleeved on the eccentric shaft (210) in the structural groove. Second bearings (230) are sleeved on the front and rear sides of the gear plate (220) on the eccentric shaft (210). The gear shaft head (111) of the main shaft (110) is meshed with the gear plate (220), so that the main shaft (110) drives the gear plate (220) and the eccentric shaft (210) to rotate in sequence.

2. The eccentric transmission motor according to claim 1, characterized in that: A shaft sleeve (240) is sleeved on the eccentric shaft (210) between the second bearing (230) and the inner side wall of the secondary eccentric end cover (320).

3. The eccentric transmission motor according to claim 1, characterized in that: The secondary eccentric end cover (320) and the primary motor end cover (310) are connected via a fixing bolt (330), and a gasket (331) is installed between the bolt head of the fixing bolt (330) and the secondary eccentric end cover (320).

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