Driving shaft for motor

Abstract

The utility model discloses a driving shaft for a motor, and belongs to the technical field of motor driving shafts, the driving shaft comprises a bearing seat and a shaft sleeve ring arranged on the bearing seat, the shaft sleeve ring is sleeved with a driving shaft rod, one end, close to the shaft sleeve ring, of the driving shaft rod is provided with a connecting end, and a connecting mechanism is arranged in the connecting end; a cavity is formed in the connecting end, and the connecting mechanism comprises two sets of limiting rods symmetrically arranged on the connecting end at equal intervals and a positioning plate fixedly installed in the cavity; two sets of limiting rods are designed at the connecting end, connected with a bearing seat, of a driving shaft rod, one set of limiting rods are used for inserting and positioning mounting holes in a shaft sleeve ring, and in the disassembling process, only the limiting rod far away from one end of the shaft sleeve ring needs to be pressed, and pin rods and springs on a synchronous plate and a positioning plate are matched; the limiting rod inserted in the shaft sleeve ring mounting hole can be driven to synchronously contract, so that the connecting end is pulled out from the shaft sleeve ring, the disassembly and assembly mode is simple, and the maintenance efficiency is improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of motor driving shafts, and particularly relates to a motor driving shaft. BACKGROUND

[0002] The driving shaft is a key component in a motor transmission system and is widely used in various motor driving devices. It is usually used to transmit the output torque of the motor to the mechanical system, so as to realize the movement of the machine. In the motor driving system, the structure and connection mode of the driving shaft have important influences on the reliability, stability and convenience of disassembly of the equipment.

[0003] Many motor driving shafts on the market still adopt traditional fixed connection modes, such as bolts, rivets or welding, and the like. Although these traditional connection modes can ensure the stability of the driving shaft during the working process, special tools or a large amount of time and energy are often required when disassembling and replacing the driving shaft, especially when the motor needs to be regularly maintained, replaced or repaired. The disassembly process of these traditional connection modes is very cumbersome and inefficient, increases the downtime of the equipment, and can adversely affect the production efficiency.

[0004] Therefore, the application provides a motor driving shaft to solve the above problems. SUMMARY

[0005] The application provides a motor driving shaft, which aims to solve the problem that the existing motor driving shaft and the bearing seat of the motor are fixed by bolts or welding, which is inconvenient for later maintenance or repair.

[0006] To achieve the above object, the application provides the following technical scheme: a motor driving shaft, comprising a bearing seat and a shaft sleeve ring arranged on the bearing seat, wherein the shaft sleeve ring is sleeved with a driving shaft rod;

[0007] One end of the driving shaft rod close to the shaft sleeve ring is provided with a connecting end, the inside of the connecting end is provided with a connecting mechanism, and a cavity is formed in the inside of the connecting end;

[0008] The connecting mechanism comprises two groups of limiting rods symmetrically arranged on the connecting end and a positioning plate fixedly installed in the inside of the cavity, a plurality of through holes for the active insertion of the limiting rods are formed in the connecting end, springs are arranged between the limiting rods and the positioning plate, the limiting rods on the same synchronous plate are synchronously contracted when the limiting rods are extruded by external force, so that the installation and disassembly in the later period are facilitated, and one group of limiting rods is inserted into the mounting hole on the shaft sleeve ring and is clamped and fixed through spring return.

[0009] Preferably, the inside of the cavity is symmetrically arranged with a synchronous plate, and the end of the limiting rod close to the positioning plate is fixedly connected with a base ring for connecting with the synchronous plate.

[0010] Preferably, the positioning plate is oppositely provided with a pin rod, and the limiting rod is provided with a slot for matching with the pin rod.

[0011] Preferably, one end of the base ring is fixedly connected with a spring, and the other end of the spring is connected with the positioning plate.

[0012] Preferably, the spring is sleeved with the pin rod.

[0013] Preferably, the connecting end is provided with a threaded surface, and the threaded surface is threadedly sleeved with a protective cover. By covering the limiting rod with the protective cover, it can prevent the connecting end from being accidentally touched when not in use.

[0014] The driving shaft is provided with two groups of limiting rods on the connecting end of the driving shaft rod and the bearing seat. One group of limiting rods is used for inserting and positioning the mounting hole on the shaft sleeve ring, and the other group of limiting rods is used for splitting the connecting end and the shaft sleeve ring later. When splitting, only the limiting rod away from the shaft sleeve ring needs to be pressed. By cooperating the pin rod and the spring on the synchronous plate and the positioning plate, the limiting rod inserted into the mounting hole of the shaft sleeve ring can be synchronously retracted, so that the connecting end is pulled out from the shaft sleeve ring. By using this connection mode, the disassembly and assembly are simple, the maintenance efficiency is improved, and the maintenance cost is reduced.

[0015] The driving shaft is provided with a threaded surface on the threaded surface and a protective cover is threadedly sleeved. When the connecting end is installed on the shaft sleeve ring, only the protective cover needs to be turned to the limiting rod away from the shaft sleeve ring, and the limiting rod is covered by the protective cover to prevent the connecting end from being accidentally touched when not in use. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structural schematic view of a driving shaft for a motor;

[0017] Figure 2 It is a structural schematic view of a connecting end;

[0018] Figure 3 It is a structural schematic view of a cross-sectional view of a connecting end;

[0019] Figure 4 It is a structural schematic view of a cross-sectional view of a limiting rod.

[0020] In the drawings:

[0021] 1. Bearing housing; 11. Shaft sleeve ring; 2. Drive shaft; 3. Connecting end; 31. Threaded surface; 32. Cavity; 4. Connecting mechanism; 41. Limiting rod; 42. Slot; 43. Synchronizing plate; 44. Base ring; 45. Pin; 46. Spring; 47. Positioning plate; 5. Protective cover. Detailed Implementation

[0022] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0023] This embodiment provides a drive shaft for a motor, such as... Figures 1-4 As shown, the drive shaft includes a bearing housing 1 and a bushing ring 11 disposed on the bearing housing 1, and a drive shaft rod 2 is sleeved on the bushing ring 11.

[0024] The drive shaft 2 is provided with a connecting end 3 at one end near the bushing 11. The connecting end 3 is provided with a connecting mechanism 4 and a cavity 32 is provided inside the connecting end 3.

[0025] The connecting mechanism 4 includes two sets of limiting rods 41 symmetrically arranged at equal intervals on the connecting end 3 and a positioning plate 47 fixedly installed inside the cavity 32. Several through holes are opened on the connecting end 3 for the movable insertion of the limiting rods 41. A spring 46 is provided between the limiting rods 41 and the positioning plate 47. One end of the base ring 44 is fixedly connected to the spring 46, and the other end of the spring 46 is connected to the positioning plate 47. The spring 46 is sleeved with the pin 45.

[0026] Specifically, there are four limiting rods 41 in total. Each pair of limiting rods 41 is symmetrically distributed as a group. The two limiting rods 41 in each group are installed on the connecting end 3 with their upper and lower sides facing each other. The cavity 32 inside the connecting end 3 is connected to the base ring 44 in the same area by two synchronous plates 43 symmetrically installed. When one of the limiting rods 41 is squeezed by an external force, the limiting rods 41 on the same synchronous plate 43 will retract synchronously, which facilitates the subsequent installation and disassembly. One group of limiting rods 41 is inserted into the mounting hole on the bushing ring 11 and can be locked by the spring 46.

[0027] The cavity 32 is symmetrically arranged with a synchronization plate 43. The end of the limiting rod 41 near the positioning plate 47 is fixedly connected to a base ring 44 for connecting with the synchronization plate 43. A pin 45 is installed on the positioning plate 47. A slot 42 for matching the pin 45 is provided on the limiting rod 41.

[0028] More specifically, the positioning plate 47 is installed at the center of the cavity 32, and the relatively installed pin rods 45 on the positioning plate 47 correspond to each limiting rod 41 respectively, and the slots 42 opened on the limiting rod 41 are inserted through the pin rods 45, so that when the limiting rod 41 is extruded, the limiting rod 41 can be limited by the pin rods 45 to avoid single side tilting and stuck.

[0029] The connecting end 3 is provided with a threaded surface 31, and the protective cover 5 is threadedly sleeved on the threaded surface 31.

[0030] It is worth mentioning that the limiting rod 41 is covered by the protective cover 5, which can prevent the connecting end 3 from being accidentally touched by someone when not in use. The protective cover 5 is tightly matched with the threaded surface 31 opened on the connecting end 3, so that the protective cover 5 will rotate synchronously when the driving shaft 2 rotates at high speed, and will not move.

[0031] In use, two sets of limiting rods 41 are designed on the connecting end 3 connected with the bearing seat 1, one set of limiting rods 41 is used for inserting and positioning the mounting hole on the shaft sleeve ring 11, and the other set of limiting rods 41 is used for later splitting of the connecting end 3 and the shaft sleeve ring 11. When splitting, only the limiting rod 41 away from one end of the shaft sleeve ring 11 needs to be pressed, and the limiting rod 41 inserted into the mounting hole of the shaft sleeve ring 11 can be synchronously retracted by the cooperation of the pin rods 45 and the springs 46 on the synchronous plate 43 and the positioning plate 47, so that the connecting end 3 is pulled out from the shaft sleeve ring 11. By using this connection mode, the disassembly and assembly are simple, the maintenance efficiency is improved, and the maintenance cost is reduced.

[0032] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can make equivalent replacement or change according to the technical solution and concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A driving shaft for an electric machine, comprising a bearing seat (1) and a shaft sleeve ring (11) arranged on the bearing seat (1), wherein a driving shaft rod (2) is sleeved on the shaft sleeve ring (11); characterized in that An end of the driving shaft rod (2) close to the shaft sleeve ring (11) is provided with a connecting end (3), an inner part of the connecting end (3) is provided with a connecting mechanism (4), and a cavity (32) is formed in the inner part of the connecting end (3); The connecting mechanism (4) comprises two groups of limiting rods (41) symmetrically arranged on the connecting end (3) and a positioning plate (47) fixedly installed in the cavity (32), a plurality of through holes for the limiting rods (41) to movably insert are formed in the connecting end (3), and springs (46) are arranged between the limiting rods (41) and the positioning plate (47).

2. The drive shaft for an electric machine according to claim 1, characterized in that: A synchronization plate (43) is symmetrically arranged in the cavity (32), and an end of the limiting rod (41) close to the positioning plate (47) is fixedly connected with a base ring (44) for connecting with the synchronization plate (43).

3. The drive shaft for an electric motor according to claim 2, characterized in that: A pin rod (45) is oppositely arranged on the positioning plate (47), and an insertion slot (42) matched with the pin rod (45) is formed in the limiting rod (41).

4. The drive shaft for an electric motor according to claim 3, characterized in that: One end of the base ring (44) is fixedly connected with the spring (46), and the other end of the spring (46) is connected with the positioning plate (47).

5. The drive shaft for an electric motor according to claim 4, characterized in that: The spring (46) is sleeved with the pin rod (45).

6. The drive shaft for an electric machine according to claim 1, characterized in that: A threaded surface (31) is formed in the connecting end (3), and a protective cover (5) is threadedly sleeved on the threaded surface (31).

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