Motor mounting structure

Abstract

The utility model provides a motor mounting structure which comprises a motor, a connecting shaft, a planetary plate and a gear. The planetary plate comprises a fixed plate and a rotating plate, the fixed plate is fixedly arranged, the rotating plate is rotatably connected with the fixed plate, a rotating shaft of the motor is fixedly connected with the connecting shaft, and the diameter of the front end of the connecting shaft is smaller than that of the rear end of the connecting shaft. The connecting shaft penetrates through the rotating disc, the rear end of the connecting shaft is in interference fit with the rotating disc, a plurality of planet wheels are fixedly arranged at the front end of the rotating disc in the circumferential direction, the front end of the connecting shaft is in interference fit with the planet wheels, and the gear is fixedly connected with the rotating disc. According to the motor installation structure, the torque of the motor is transmitted in a two-section mode, the connecting shaft can be prevented from being twisted and broken, and the maximum torque transmitted by the motor is increased.

Description

Technical Field

[0001] The utility model belongs to the technical field of motors, and in particular relates to a motor installation structure. Background Art

[0002] The motor shaft is generally connected to the gear shaft through a coupling. The strength of the coupling is limited. When a large torque needs to be transmitted, the coupling is prone to breakage and failure. Utility Model Content

[0003] The utility model aims to solve the above technical problems and provides a motor installation structure, which aims to improve the maximum torque that can be transmitted by the motor shaft through a special motor installation structure.

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

[0005] A motor mounting structure comprises a motor, a connecting shaft, a planetary disk, and a gear; the planetary disk comprises a fixed disk and a rotating disk, the fixed disk is fixedly arranged, the rotating disk and the fixed disk are rotatably connected, the rotating shaft of the motor and the connecting shaft are fixedly connected, the diameter of the front end of the connecting shaft is smaller than the diameter of the rear end, the connecting shaft passes through the rotating disk and the rear end of the connecting shaft is interference fit with the rotating disk, a plurality of planetary gears are fixedly provided at the front end of the rotating disk along the circumferential direction, the front end of the connecting shaft is interference fit with the plurality of planetary gears, and the gear is fixedly connected to the rotating disk.

[0006] As a preferred technical solution, the motor mounting structure also includes a front cover, one end of the front cover is fixedly connected to the fixed plate, the other end of the front cover is fixedly connected to the end cover of the motor, a grease addition port is provided at the upper end of the front cover, and a grease discharge port is provided at the lower end of the front cover.

[0007] As a preferred technical solution, a sealing ring is provided on the contact surface between the front cover and the fixed disk.

[0008] As a preferred technical solution, the motor mounting structure further includes a mounting plate, and the fixing disk and the front cover are fixedly mounted on the mounting plate.

[0009] After adopting the above technical solution, the utility model has the following advantages:

[0010] 1. The motor installation structure of the utility model transmits the motor torque in two stages: on the one hand, the motor shaft transmits the torque to the rotating disk through the rear half of the connecting shaft, and on the other hand, the motor shaft transmits the torque to a plurality of planetary gears through the front half of the connecting shaft. Since the planetary gears and the rotating disk are fixedly connected, it is equivalent to the torque being transmitted to the rotating disk, and finally the rotating disk transmits the torque to the gear. The advantage of this structure is that since the planetary gears and the connecting shaft are in line contact, the contact area is very small, and the planetary gears mainly play a supporting role for the connecting shaft. When the torque borne by the connecting shaft is too large, the front half and the rear half of the connecting shaft will be relatively twisted, and at this time, circumferential slip will occur between the connecting shaft and the plurality of planetary gears, preventing the connecting shaft from torsional fracture.

[0011] 2. The motor mounting structure of the utility model is provided with a front cover. By adding grease into the front cover, the connecting shaft and the planetary disk can be cooled. As the temperature rises, the fracture toughness of the connecting shaft material will gradually decrease, so cooling can further prevent the connecting shaft from breaking. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of a motor installation structure;

[0013] Figure 2 is a cross-sectional view of a motor mounting structure;

[0014] Figure 3 An exploded diagram of a motor mounting structure;

[0015] Figure 4 An exploded view of a motor mounting structure from another perspective. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] like Figure 1-4 As shown, a motor mounting structure includes: a motor 1, a mounting plate 2, a connecting shaft 3, a front cover 4, a planetary disk 5, and a gear 6.

[0018] The planetary disk 5 includes a fixed disk 51 and a rotating disk 52, and the fixed disk 51 is rotatably connected to the rotating disk 52. A mounting hole for mounting the planetary disk 5 is provided in the middle of the mounting plate 2, and the fixed disk 51 is sleeved on the mounting plate 2 and fixedly connected to the mounting plate 2. The rotating shaft of the motor 1 is fixedly connected to the connecting shaft 3.

[0019] The diameter of the front end of the connecting shaft 3 is smaller than the diameter of the rear end. The connecting shaft 3 passes through the rotating disk 52 and the rear end of the connecting shaft 3 is interference fit with the rotating disk 52. Three planetary gears 53 are fixedly provided at the front end of the rotating disk 52 along the circumferential direction, and the front end of the connecting shaft 3 is interference fit with the three planetary gears 53. The connecting shaft 3 and the rotating disk 52 adopt a two-stage interference fit fixed connection method, and the vibration of the connecting shaft 3 can be transmitted to the rotating disk 52 through the three planetary gears 53. Since the planetary gears 53 and the connecting shaft 3 are in line contact and the contact area is very small, the planetary gears 53 mainly play a supporting role for the connecting shaft 3. When the torque borne by the connecting shaft 3 is too large, the front half and the rear half of the connecting shaft 3 will be relatively twisted. At this time, circumferential slip will occur between the connecting shaft 3 and the three planetary gears 53 to prevent the connecting shaft 3 from torsional fracture.

[0020] The gear 6 is fixedly connected to the rotating disk 52 .

[0021] One end of the front cover 4 is fixedly connected to the fixed plate 51, and the other end of the front cover 4 is fixedly connected to the end cover of the motor 1. A grease inlet is provided at the upper end of the front cover 4, and a grease outlet is provided at the lower end of the front cover 4. A sealing ring is provided on the contact surface between the front cover 4 and the fixed plate 51.

[0022] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0023] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A motor mounting structure, characterized in that: It includes a motor, a connecting shaft, a planetary disk, and a gear; the planetary disk includes a fixed disk and a rotating disk, the fixed disk is fixedly arranged, the rotating disk and the fixed disk are rotatably connected, the rotating shaft of the motor is fixedly connected to the connecting shaft, the diameter of the front end of the connecting shaft is smaller than the diameter of the rear end, the connecting shaft passes through the rotating disk and the rear end of the connecting shaft is interference fit with the rotating disk, a plurality of planetary gears are fixedly provided at the front end of the rotating disk along the circumferential direction, the front end of the connecting shaft is interference fit with the plurality of planetary gears, and the gear is fixedly connected to the rotating disk.

2. A motor mounting structure according to claim 1, characterized in that: The motor mounting structure also includes a front cover, one end of which is fixedly connected to the fixed plate, and the other end of which is fixedly connected to the end cover of the motor. A grease addition port is provided at the upper end of the front cover, and a grease discharge port is provided at the lower end of the front cover.

3. A motor mounting structure according to claim 2, characterized in that: A sealing ring is arranged on the contact surface between the front cover and the fixing plate.

4. A motor mounting structure according to claim 2, characterized in that: The motor mounting structure further comprises a mounting plate, and the fixing plate and the front cover are fixedly mounted on the mounting plate.

Images