Eccentric gear box motor direct connection speed reducer

Abstract

The utility model discloses an eccentric gear box motor direct connection speed reducer which comprises a box body and an output shaft arranged in the box body, one side of the box body is fixedly connected with an input flange used for being connected with a motor, and a motor shaft of the motor is arranged in the box body in a penetrating mode to form an input end. And one end of the output shaft is arranged outside the box body to form an output end. The speed reducer and the motor are connected through the input flange, the motor shaft directly enters the speed reducer to form an input end, large-torque transmission is achieved through the eccentric torque transmission structure, abrasion in long-term use is effectively reduced, the service life is prolonged, and working precision is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the field of speed reducers and relates to a speed reducer directly connected to an eccentric gear box motor. Background Art

[0002] Traditionally, the power drive of some high-torque equipment relies on large-scale high-power hydraulic motors and other equipment. Such equipment has disadvantages such as large size, high energy consumption, and high noise. Therefore, some manufacturers choose to use direct-drive motors in combination with reducers for driving. The configuration of motors and reducers in existing equipment is usually a flat key connection between the motor shaft and the input shaft. In high-torque usage scenarios, this is prone to wear and tear, resulting in unstable drive and affecting the overall performance of the equipment. Utility Model Content

[0003] In order to overcome the deficiencies of the prior art, the utility model provides an eccentric gear box motor directly connected to a speed reducer.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] An eccentric gear box motor direct-connected reducer includes a box body and an output shaft arranged in the box body. One side of the box body is fixedly connected to an input flange for connecting to the motor. The motor shaft of the motor is passed through the box body to form an input end, and one end of the output shaft is arranged outside the box body to form an output end.

[0006] Furthermore, the outer end surface of the input flange is formed as a mounting surface for connecting to the motor, and an input hole for the motor shaft to pass through is provided on the mounting surface, and a deep groove ball bearing and a skeleton oil seal are provided circumferentially of the input hole.

[0007] Furthermore, the housing also includes a torque transmission structure, which includes an input gear, a sun gear shaft and an output gear. The sun gear shaft is arranged parallel to the output shaft, the input gear is sleeved on the sun gear shaft and meshed with the motor shaft, and the output gear is sleeved on the output shaft and meshed with the sun gear shaft.

[0008] Furthermore, a plurality of tapered roller bearings are sleeved on the outer periphery of the output shaft, and the outer peripheries of the tapered roller bearings are cooperatively connected with the inner wall of the box body.

[0009] In summary, the benefits of the present invention are:

[0010] The utility model connects the reducer and the motor through an input flange, so that the motor shaft directly enters the reducer to form an input end, and realizes high torque transmission through an eccentric torque transmission structure, effectively reducing wear in long-term use, improving service life, and ensuring working accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the external structure of the utility model.

[0012] Figure 2 for Figure 1 Schematic diagram of the cross-section structure in.

[0013] Markings in the figure: 11, housing; 12, input flange; 2, motor; 21, motor shaft; 3, output shaft; 31, output gear; 32, tapered roller bearing; 41, sun gear shaft; 42, input gear. DETAILED DESCRIPTION

[0014] The following describes the embodiments of the present invention through specific examples. Those skilled in the art will readily understand the other advantages and benefits of the present invention from the disclosure herein. The present invention may also be implemented or applied through various other specific embodiments, and the details in this specification may be modified or altered based on different perspectives and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features within these embodiments may be combined with one another, unless they conflict.

[0015] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention. Therefore, the drawings only show components related to the present invention and are not drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component can be changed arbitrarily, and the component layout type may also be more complicated.

[0016] All directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, horizontal, vertical...) are only used to explain the relative position relationship, movement status, etc. between the various components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0017] Due to installation errors and other reasons, the parallel relationship referred to in the embodiments of the present invention may actually be an approximately parallel relationship, and the perpendicular relationship may actually be an approximately perpendicular relationship.

[0018] This embodiment provides an eccentric gearbox motor directly connected to a reducer for torque output in high torque demand scenarios such as cement mixing. Figure 1 and Figure 2 , including a reducer housing 11, an output shaft 3 and a torque transmission structure.

[0019] An input flange 12 is fixedly connected to one side of the reducer housing 11. The outer end surface of the input flange 12 is formed as a mounting surface for fixedly connecting and mounting with the end surface of the motor shaft 21 of the motor 2. The motor 2 is fixedly connected to the input flange 12. The motor shaft 21 passes through the input hole on the input flange 12 to extend into the reducer housing 11. A deep groove ball bearing and a skeleton oil seal are arranged circumferentially around the input hole. The deep groove ball bearing and the skeleton oil seal are arranged on the outer periphery of the motor shaft 21 to provide coaxial support and sealing to the motor shaft 21 respectively.

[0020] The output shaft 3 is arranged in the reducer housing 11. An output hole is provided on the side of the reducer housing 11 relative to the input flange 12. One side of the output shaft 3 is extended outward along the output hole to form an output end. A plurality of tapered roller bearings 32 are sleeved on the outer periphery of the output shaft 3. The outer periphery of the tapered roller bearings 32 cooperates with the inner wall of the reducer housing 11 to form a positioning support for the output shaft 3, enhance radial and axial forces, and prevent axial movement. A skeleton oil seal is provided at the opening of the output hole.

[0021] The torque transmission structure includes an input gear 42, a sun gear shaft 41 and an output gear 31. The sun gear shaft 41 is arranged in the reducer housing 11. The sun gear shaft 41 is parallel to the output shaft 3. The two side shaft ends of the sun gear shaft 41 are respectively provided with deep groove ball bearings for cooperating with the inner wall of the reducer housing 11 to form a positioning support. The output gear 31 is key-connected and installed on the outer periphery of the output shaft 3. The output gear 31 is meshed with the outer periphery of the sun gear shaft 41. The input gear 42 is key-connected and installed on the outer periphery of the sun gear shaft 41. The outer periphery of the motor shaft 21 is formed with ring teeth for meshing with the input gear 42, and then the eccentric torque is transmitted from the motor shaft 21 to the output shaft 3 through the input gear 42, the sun gear shaft 41 and the output gear 31. The layout structure in the reducer housing 11 is rationalized, the volume of the reducer is effectively reduced, and at the same time, the large torque output of the motor 2 in cooperation with the reducer is achieved through the output shaft 3 and the torque transmission structure.

[0022] Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

Claims

1. An eccentric gearbox motor directly connected to a reducer, characterized in that: The invention comprises a housing (11) and an output shaft (3) arranged in the housing (11); an input flange (12) for connecting to a motor (2) is fixedly connected to one side of the housing (11); a motor shaft (21) of the motor (2) is passed through the housing (11) to form an input end; and one end of the output shaft (3) is arranged outside the housing (11) to form an output end.

2. The eccentric gearbox motor directly connected to the reducer according to claim 1, characterized in that: The outer end surface of the input flange (12) is formed as a mounting surface for connecting to the motor (2), and an input hole for the motor shaft (21) to pass through is provided on the mounting surface. A deep groove ball bearing and a skeleton oil seal are provided circumferentially of the input hole.

3. The eccentric gearbox motor directly connected to the reducer according to claim 1, characterized in that: The housing (11) further includes a torque transmission structure, which includes an input gear (42), a sun gear shaft (41) and an output gear (31). The sun gear shaft (41) is arranged in parallel with the output shaft (3). The input gear (42) is sleeved on the sun gear shaft (41) and meshed with the motor shaft (21). The output gear (31) is sleeved on the output shaft (3) and meshed with the sun gear shaft (41).

4. The eccentric gearbox motor directly connected to the reducer according to claim 1, characterized in that: The outer periphery of the output shaft (3) is sleeved with a plurality of tapered roller bearings (32), and the outer periphery of the tapered roller bearings (32) is cooperatively connected with the inner wall of the box body (11).

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