CN215300379U - Motor shaft reduction gears - Google Patents

Abstract

The utility model relates to the technical field of motors, concretely relates to motor shaft reduction gears, including motor shaft, shaft coupling, outer spiale, electro-magnet, flexible piece, leaf spring, friction lever, the motor shaft gets up shaft coupling and outer spiale through the key, realizes that outer spiale and motor shaft rotate in step, and this motor shaft reduction gears passes through the circular telegram and the outage of electro-magnet, produces magnetic force, and the guide is flexible the piece and removes, makes leaf spring produce and warp, promotes the friction lever and removes, and the friction lever contacts with outer spiale and produces frictional force, and then realizes that outer spiale and motor shaft slow down and stop, and this motor shaft reduction gears simple structure, slow down and the effectual of splining.

Description

Motor shaft reduction gears

Technical Field

The utility model relates to the technical field of motors, in particular to motor shaft reduction gears.

Background

An electric motor is a device that converts electrical energy into mechanical energy. The electromagnetic power generator utilizes an electrified coil (namely a stator winding) to generate a rotating magnetic field and acts on a rotor to form magnetoelectric power rotating torque. The motor mainly comprises a stator and a rotor, and the motion direction of the stress of the electrified conducting wire in a magnetic field is related to the direction of current and the direction of magnetic induction lines. The working principle of the motor is that the magnetic field exerts acting force on the rotor to enable the rotor of the motor to rotate.

The existing motor is not provided with a speed reducing mechanism, so that after the motor rotates at a high speed and is powered off, the motor can continue to rotate for a period of time due to inertia. It needs to rely on the friction resistance of the motor itself to stop, and the deceleration effect is relatively poor. And the motor shaft does not have the auto-lock ability, can't satisfy and need to have the operating mode that the auto-lock required to use down.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a motor shaft reduction gears possesses advantages such as the structure is simple and easy, easy operation, through at motor shaft front end installation shaft coupling, outer spiale, electro-magnet, leaf spring and friction lever, uses the electro-magnet switch to make leaf spring extend and shrink, promotes the friction lever back-and-forth movement, realizes the speed reduction and the stopping of outer spiale and motor shaft to solve foretell technical problem.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a motor shaft speed reducing mechanism comprises a motor and a motor shaft, wherein a key and a coupler are installed at the front end of the motor shaft, a key and an external shaft are installed at the left end of the coupler, and the motor shaft connects the coupler and the external shaft through the key to realize synchronous rotation of the external shaft and the motor shaft.

As the utility model discloses an optimal technical scheme, both ends installation bearing around the outer joint spindle, the bearing is fixed mounting respectively on front panel and rear panel, install four screw rods on the rear panel, the screw rod gets up cross link fixed support, install four backup pads on the rear panel, every backup pad is got up by two fix with screws, paste the electro-magnet above every backup pad, backup pad and electro-magnet mounted position are below every branch cavity recess of cross link.

As the utility model discloses a preferred technical scheme, the contact of electro-magnet upper portion has magnet bolt ware, magnet bolt ware is the T font, magnet bolt ware inserts in the flexible piece, becomes a whole with flexible piece, two leaf springs are being welded on flexible piece, both ends respectively with friction lever and screw rod fixed connection around the leaf spring, leaf spring initial state is crooked, leaf spring straightens in the work.

As the preferred technical scheme of the utility model, the backup pad is the plastics material.

As the utility model discloses an optimal technical scheme, the cross-shaped link is the aluminum alloy material.

As the utility model discloses a preferred technical scheme, install the shell around front panel and the rear panel, include cross link, screw, backup pad, screw rod, leaf spring, friction lever, magnet bolt ware and electro-magnet, installation switch above the shell.

As the utility model discloses a preferred technical scheme, screw rod, leaf spring, friction lever, magnet bolt ware and electro-magnet all around bilateral symmetry formula distribute, have four groups altogether.

As the preferred technical scheme of the utility model, the friction lever can be along the specific recess of back panel along blade spring deformation and then back-and-forth movement.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic diagram of the structure of the explosion view of the present invention;

FIG. 3 is a schematic view of the internal structure of the utility model when not in operation;

FIG. 4 is a schematic view of the internal structure of the present invention during operation;

FIG. 5 is a schematic structural view of a part of the speed reducing mechanism when the utility model is not in operation;

FIG. 6 is a schematic view of a part of the reduction mechanism of the present invention during operation;

in the drawings, reference numerals designate the following components:

1. the motor comprises a motor 2, a motor shaft 3, a key 4, a coupler 5, a rear panel 6, a bearing 7, a cross-shaped connecting frame 8, a screw 9, a supporting plate 10, a screw rod 11, a blade spring 12, a friction rod 13, a shell 14, a front panel 15, a switch 16, a telescopic block 17, a magnet latch 18, an electromagnet 19 and an external connecting shaft.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Please refer to fig. 1-2, the utility model provides a motor shaft reduction gears, including motor 1, motor shaft 2, 2 front end erection keys 3 and shaft coupling 4 of motor shaft, 4 left ends erection keys 3 and external shaft 19 of shaft coupling, motor shaft 2 are connected external shaft 19 through key 3 and shaft coupling 4, realize external shaft 19 and motor shaft 2 synchronous rotation.

Referring to fig. 3-6, the structure of the motor shaft speed reducing mechanism is described in detail, bearings 6 are mounted at the front end and the rear end of the external shaft 19, the bearings 6 are respectively mounted on the front panel 14 and the rear panel 5, four screws 10 are mounted on the rear panel 5, the cross-shaped connecting frame 7 is fixedly supported by the screws 10, four supporting plates 9 are mounted on the rear panel 5, each supporting plate 9 is fixed by two screws 8, an electromagnet 18 is adhered to the upper surface of each supporting plate 9, and each supporting plate 9 and the electromagnet 18 are mounted below four branches of the cross-shaped connecting frame 7. The upper part of the electromagnet 18 is contacted with a magnet latch 17, the magnet latch 17 is T-shaped, the magnet latch 17 is inserted into the telescopic block 16 and is integrated with the telescopic block 16, the upper end of the telescopic block 16 is welded with two blade springs 11, the front end and the rear end of each blade spring 11 are fixedly connected with the friction rod 12 and the screw rod 10 respectively, the blade springs 11 are bent in the initial state, and the blade springs 11 are straightened in the working process. A shell 13 is arranged around the front panel 14 and the back panel 5, the shell 13 contains a cross-shaped connecting frame 7, a screw 8, a supporting plate 9, a screw rod 10, a blade spring 11, a friction rod 12, a magnet latch 17 and an electromagnet 18, and a switch 15 is arranged on the shell 13.

Referring to fig. 3-6, the operating principle of the motor shaft speed reducing mechanism is described in detail, the motor shaft 2 and the external shaft 19 rotate synchronously in the initial state through the coupling 4, the blade spring 11 is bent in the initial state, the front, middle and rear ends of the blade spring 11 are respectively fixed to the friction rod 12, the telescopic block 16 and the screw rod 10, the telescopic block 16 and the magnet latch 17 form a whole and are superposed on the electromagnet, at this time, a gap exists between the friction rod 12 and the external shaft 19, and the external shaft 19 rotates normally.

When the rotation of the motor shaft 2 needs to be stopped, the switch 15 on the outer shell 13 is pressed, the four electromagnets 18 of the motor shaft speed reducing mechanism are electrified, the electromagnets 18 generate magnetic force, meanwhile, as the magnet latch 17 is superposed on the electromagnets 18 and is magnetic, repulsion force is generated between the electromagnets 18 and the magnet latch 17, the magnet latch 17 and the telescopic block 16 are pushed to move along the hollow groove of the cross-shaped connecting frame 7, the blade spring 11 is deformed by the upward force of the telescopic block 16, the blade spring 11 is straightened and generates displacement, the friction rod 12 is pushed to move forward, the front end of the friction rod 12 just contacts with the external shaft 19, and friction force is generated on the external shaft 19 to drive the external shaft 19 and the motor shaft 2 to stop.

In the internal structure, as can be seen from fig. 3-4, the speed reducing mechanism has four sets, and the four friction rods 12 can be operated simultaneously to generate friction force, so as to stop the external shaft 19 and the motor shaft 2. When the external shaft 19 and the motor shaft 2 are stopped, the switch 15 is pressed again, the electromagnet 18 is powered off, and the blade spring 11, the telescopic block 16, the friction rod 12 and the magnet latch 17 return to the initial state.

In summary, the motor shaft speed reducing mechanism generates magnetic force by powering on and off the electromagnet 18, and guides the telescopic block 16 to move, so as to cause the blade spring 11 to deform and push the friction rod 12 to move back and forth, thereby realizing the speed reduction and stop of the external shaft 19 and the motor shaft 2.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. A motor shaft reduction gears which characterized in that: comprises a motor (1) and a motor shaft (2), wherein the front end mounting key (3) of the motor shaft (2) and a shaft coupling (4) are arranged, the left end mounting key (3) and an outer connecting shaft (19) of the shaft coupling (4) are arranged, the motor shaft (2) is connected with the outer connecting shaft (19) through the key (3) and the shaft coupling (4), the outer connecting shaft (19) and the motor shaft (2) synchronously rotate, bearings (6) are arranged at the front end and the rear end of the outer connecting shaft (19), the bearings (6) are respectively arranged on a front panel (14) and a rear panel (5), four screw rods (10) are arranged on the rear panel (5), the cross-shaped connecting frame (7) is fixedly supported by the four screw rods (10), four supporting plates (9) are arranged on the rear panel (5), each supporting plate (9) is fixed by two screws (8), and an electromagnet (18) is adhered on each supporting plate (9), every backup pad (9) and electro-magnet (18) are installed beneath four branches of cross linking bridge (7), electro-magnet (18) upper portion contact has magnet bolt ware (17), magnet bolt ware (17) are the T font, magnet bolt ware (17) are inserted in flexible piece (16), two leaf spring (11) are being welded on flexible piece (16), both ends respectively with friction lever (12) and screw rod (10) fixed connection around leaf spring (11), leaf spring (11) initial state is crooked, leaf spring (11) are straightening in the work.

2. The motor shaft decelerating mechanism as claimed in claim 1, wherein: install shell (13) around front panel (14) and rear panel (5), cross-shaped link (7), screw (8), backup pad (9), screw rod (10), blade spring (11), friction lever (12), magnet bolt ware (17) and electro-magnet (18) are contained in shell (13), install switch (15) above shell (13).

3. The motor shaft decelerating mechanism as claimed in claim 1, wherein: synchronous rotation is realized through shaft coupling (4) in motor shaft (2) and external shaft (19) initial condition, leaf spring (11) initial condition is crooked downwards, leaf spring (11) preceding middle-middle rear end is fixed respectively at friction lever (12), flexible piece (16) and screw rod (10), flexible piece (16) and magnet bolt ware (17) form a whole stack on the electro-magnet, there is the clearance between friction lever (12) and external shaft (19) initial condition, external shaft (19) normal rotation.

4. The motor shaft decelerating mechanism as claimed in claim 1, wherein: the screw rods (10), the blade springs (11), the friction rods (12), the magnet latch devices (17) and the electromagnets (18) are distributed in a front-back and left-right symmetrical mode, and four groups are formed in total.

5. The motor shaft decelerating mechanism as claimed in claim 1, wherein: the supporting plate (9) is made of plastic.

6. The motor shaft decelerating mechanism as claimed in claim 1, wherein: the cross-shaped connecting frame (7) is made of aluminum alloy.

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