CN217956886U

CN217956886U - Motor brake device for experiments

Info

Publication number: CN217956886U
Application number: CN202221801516.2U
Authority: CN
Inventors: 高斌斌; 赵瑞峰
Original assignee: Shanxi Engineering Vocational College
Current assignee: Shanxi Engineering Vocational College
Priority date: 2022-07-13
Filing date: 2022-07-13
Publication date: 2022-12-02
Anticipated expiration: 2032-07-13

Abstract

The utility model relates to a motor braking technical field just discloses a motor brake equipment for experiments, which comprises a motor body, motor body's output shaft runs through the shell, the equal swing joint of internal surface of two backup pads has the fly leaf, the external fixed surface of fly leaf is connected with the spring, the other end fixedly connected with support column of spring, the external fixed surface of support column is connected with the braking plate, the spacing post of external fixed surface of braking plate is connected with, the fixed surface cover of output shaft is equipped with the brake block. Traditional motor braking mode realizes through installing the electromagnetism band-type brake on the motor, but the electromagnetism band-type brake is bulky and high price, and the structure is complicated, the not in-service use of being convenient for, the utility model discloses a design realizes braking effect through setting up spring and spacing post cooperation brake block, and the rethread sets up ratchet pole, ratchet and one-way bearing, and produced inertia of output shaft has improved braking effect when having eliminated the braking.

Description

Motor brake device for experiments

Technical Field

The utility model relates to a motor braking technical field specifically is a motor brake equipment for experiments.

Background

In some experiments, a motor is used, and when the motor is powered off, the motor continues to rotate for a certain time due to the existence of the inertia of the rotor and the inertia of the load, so that a motor braking device is used, and the device can refer to patent numbers: 201820409082.9, but such devices cannot erect to eliminate the inertia of the output shaft.

When the power supply of the motor is cut off, the motor can continue to rotate for a certain time due to the existence of the inertia of the rotor and the inertia of the load, and the redundant rotation moment generated due to the inertia can be in failure or accident in some experiments.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides an experimental motor braking device has solved when the motor deenergization, and the motor can continue rotatory certain time because of rotor inertia and load inertia's existence, and this is because the unnecessary moment of rotation that inertia produced can break down or the problem of accident in some experiments.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an experimental motor brake equipment, includes motor body, motor body's right side is provided with the shell, motor body's output shaft runs through the shell, the internal surface of shell is provided with two backup pads, the equal swing joint in internal surface of two backup pads has the fly leaf, the outer fixed surface of fly leaf is connected with the spring, the other end fixedly connected with support column of spring, the outer fixed surface of support column is connected with the braking plate, the spacing post of outer fixed surface of braking plate is connected with, the outer fixed surface cover of output shaft is equipped with the brake block.

Preferably, the top inner surface and the bottom inner surface of the shell are fixedly connected with L-shaped supporting plates, the outer surfaces of the L-shaped supporting plates are fixedly connected with electromagnets, the electromagnets are adsorbed to the brake plate when being electrified, and the electromagnets lose adsorption effect on the brake plate when being powered off.

Preferably, the inner surface of the right side of the housing is fixedly connected with a fixed plate, the inner surface of the fixed plate is movably connected with a ratchet rod, the outer surface of the output shaft is fixedly sleeved with a ratchet wheel, the ratchet rod is matched with the direction of the meshing teeth of the ratchet wheel, and the ratchet rod is matched with the ratchet wheel to prevent the output shaft from moving in the opposite direction, so that the inertia of the output shaft is eliminated.

Preferably, the outer fixed surface of fly leaf is connected with L shape pole, the outer fixed surface of L shape pole is connected with L shape connecting plate, the top internal surface of shell and the internal surface of bottom internal surface and L shape connecting plate all set up the screw hole with threaded rod looks adaptation, and the threaded rod cooperation screw hole is fixed L shape connecting plate on the shell.

Preferably, the electromagnet is electrically connected with an external power supply, and the power-on and power-off state of the electromagnet is controlled through the external power supply.

Preferably, the ratchet rod is movably connected with the inner surface of the fixing plate through a rotating shaft, a one-way bearing is fixedly sleeved on the outer surface of the rotating shaft, the one-way bearing prevents the ratchet rod from reversely rotating, and therefore the effect of eliminating inertia is improved.

(III) advantageous effects

Compared with the prior art, the utility model provides a motor arresting gear for experiments possesses following beneficial effect:

1. traditional motor braking mode realizes through installing the electromagnetism band-type brake on the motor, but the electromagnetism band-type brake is bulky and high price, and the structure is complicated, the in-service use of being not convenient for, this neotype design of use realizes the braking effect through setting up spring and spacing post cooperation brake block, and the rethread sets up ratchet pole, ratchet and one-way bearing, produced inertia of output shaft when having eliminated the braking, has improved the braking effect.

2. This use neotype design can stimulate L shape connecting plate through unscrewing the threaded rod, and the fly leaf is at the internal surface sliding adjusting spring's of backup pad deformation volume to reached and can freely adjusted spacing post as required and support the effect of pressing the brake block dynamics.

Drawings

FIG. 1 is a front view of the cross-sectional structure of the present invention;

FIG. 2 is a schematic top view of the present invention;

FIG. 3 is a schematic view of the ratchet wheel and its related structure;

fig. 4 is an enlarged schematic structural view of a point a in fig. 1 according to the present invention.

Wherein: 1. a motor body; 2. a housing; 3. an output shaft; 4. a support plate; 5. a spring; 6. a movable plate; 7. a support column; 8. a brake plate; 9. a limiting column; 10. a brake pad; 11. an L-shaped support plate; 12. an electromagnet; 13. a fixing plate; 14. a rotating shaft; 15. a ratchet bar; 16. a ratchet wheel; 17. a one-way bearing; 18. an L-shaped rod; 19. an L-shaped connecting plate; 20. a threaded hole; 21. a threaded rod.

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 efforts all belong to the protection scope of the present invention.

Referring to figures 1-4 of the drawings,

example 1: when the electromagnet 12 is in a power-on state, the electromagnet 12 adsorbs the brake plate 8, the support column 7 is fixedly connected with one end surface of the spring 5, the support column 7 extrudes the spring 5, the spring 5 is in a compression state, when the output shaft 3 needs to be braked, the electromagnet 12 is in a power-off state, the electromagnet 12 stops adsorbing the brake plate 8, the limiting column 9 is fixedly connected with the brake plate 8, the brake plate 8 is fixedly connected with the support column 7, the spring 5 resets to enable the limiting column 9 to be in contact with the side surface of the brake pad 10, when the output shaft 3 is braked, the ratchet rod 15 is movably connected with the rotating shaft 14, the outer surface of the rotating shaft 14 is fixedly arranged inside the one-way bearing 17, the one-way bearing 17 enables the ratchet rod 15 to move only in one direction, the ratchet wheel 16 is matched with the ratchet rod 15 to enable the output shaft 3 to move only in one direction, inertia generated by the output shaft 3 during braking is eliminated, and the braking effect is improved.

Example 2: l shape pole 18 and the internal surface swing joint of backup pad 4, fly leaf 6 slides at the internal surface of backup pad 4, and the top surface fixed connection of L shape pole 18 has L shape connecting plate 19, and threaded rod 21 fixes L shape connecting plate 19 on shell 2 through screw hole 20, can pull L shape connecting plate 19 through unscrewing threaded rod 21, and fly leaf 6 slides the deformation volume of regulating spring 5 at the internal surface of backup pad 4 to the effect that can freely adjust spacing post 9 as required and support and press brake block 10 dynamics has been reached.

The inner surface of the supporting plate 4 should be polished to prevent excessive friction from affecting the sliding of the movable plate 6 on the inner surface of the supporting plate 4.

The minimum attracting force of the electromagnet 12 is 5kg because the attracting force of the electromagnet 12 is prevented from being too low, and when the spring 5 is compressed, the brake plate 8 is sprung outward by the elastic force of the spring 5, so that the electromagnet 12 cannot be attracted to the brake plate 8.

In order that the ratchet rod 15 does not affect the normal rotation of the ratchet wheel 16 and can prevent the ratchet wheel 16 from being reversely rotated, the bottom outer surface of the ratchet rod 15 is shaped to be engaged with the teeth of the ratchet wheel 16.

In order to conveniently adjust the force of the limiting column 9 against the brake pad 10, the shell 2 is provided with the sliding groove, in order to avoid the L-shaped rod 18 from moving during the working of the motor, the L-shaped connecting plate 19 is fixed by arranging the threaded hole 20 and the threaded rod 21, the threaded hole 20 is arranged on two sides of the sliding groove, and the reason is that the L-shaped connecting plate 19 is inconvenient to fix due to the fact that the threaded hole 20 is prevented from being overlapped with the sliding groove.

The above-mentioned devices for use of the equipment are selected differently according to actual use, and correspond to the achieved effect according to the function of the equipment to be used by referring to various parameters.

The working principle is as follows: when the output shaft 3 does not need to be braked, the electromagnet 12 is turned on, the electromagnet 12 is in a power-on state, the electromagnet 12 adsorbs the brake plate 8, the limiting column 9 is not in contact with the brake pad 10, and further the rotation of the output shaft 3 is not influenced, when the output shaft 3 needs to be braked, the electromagnet 12 is turned off, the electromagnet 12 stops adsorbing the brake plate 8, the initial state of the spring 5 is a compression state, the spring 5 resets to push the supporting column 7 outwards, the limiting column 9 is in contact with the side face of the brake pad 10, so that the output shaft 3 stops rotating, when the output shaft 3 is braked, the high-speed rotation of the output shaft 3 can generate certain inertia, when the output shaft 3 rotates, the outer surface of the bottom of the ratchet rod 15 is in a shape meshed with the teeth of the ratchet wheel 16, the rotation of the ratchet wheel 16 is not influenced, the ratchet wheel 15 can only move in one direction, the ratchet wheel 16 is matched with the ratchet rod 15, so that the output shaft 3 can only move in one direction, and the inertia generated by the output shaft 3 during braking is eliminated, and the braking effect is improved.

When the dynamics that spacing post 9 supported and pressed brake block 10 need be reduced, unscrew threaded rod 21, through drawing L shape connecting plate 19 to the required position left, draw L shape connecting plate 19 to the required position, screw up threaded rod 21 with threaded rod 21, thereby it is fixed with L shape pole 18, the deformation volume of spring 5 has been reduced, and then the dynamics of supporting and pressing of spacing post 9 to brake block 10 has been reduced, if need increase when spacing post 9 supported and pressed brake block 10's dynamics, as above, only need turn right pulling L shape connecting plate 19, thereby increase spring 5's deformation volume, thereby reached and can freely adjusted the effect that spacing post 9 supported and pressed brake block 10 dynamics as required.

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

1. The utility model provides an experimental motor brake equipment, includes motor body (1), its characterized in that: the right side of motor body (1) is provided with shell (2), output shaft (3) of motor body (1) run through shell (2), the internal surface of shell (2) is provided with two backup pads (4), the equal swing joint of internal surface of two backup pads (4) has fly leaf (6), the fixed surface of fly leaf (6) is connected with spring (5), the other end fixedly connected with support column (7) of spring (5), the fixed surface of support column (7) is connected with braking plate (8), the fixed surface of braking plate (8) is connected with spacing post (9), the fixed surface cover of output shaft (3) is equipped with brake block (10).

2. The experimental electric brake device according to claim 1, wherein: the top inner surface and the bottom inner surface of the shell (2) are both fixedly connected with an L-shaped supporting plate (11), and the outer surface of the L-shaped supporting plate (11) is fixedly connected with an electromagnet (12).

3. The experimental electric brake device according to claim 1, wherein: the inner surface of the right side of the shell (2) is fixedly connected with a fixing plate (13), the inner surface of the fixing plate (13) is movably connected with a ratchet rod (15), a ratchet wheel (16) is fixedly sleeved on the outer surface of the output shaft (3), and the ratchet rod (15) is matched with the ratchet wheel (16) in the direction of meshing teeth.

4. The experimental electric brake device according to claim 1, characterized in that: the outer surface fixed connection of fly leaf (6) has L shape pole (18), the outer surface fixed connection of L shape pole (18) has L shape connecting plate (19), screw hole (20) with threaded rod (21) looks adaptation are all seted up to the top internal surface of shell (2) and the internal surface of bottom internal surface and L shape connecting plate (19).

5. The experimental electric brake device according to claim 2, wherein: the electromagnet (12) is electrically connected with an external power supply, and the outer surface of the electromagnet (12) is adsorbed to the outer surface of the brake plate (8).

6. The experimental electric brake device according to claim 3, characterized in that: the ratchet rod (15) is movably connected with the inner surface of the fixing plate (13) through a rotating shaft (14), and a one-way bearing (17) is fixedly sleeved on the outer surface of the rotating shaft (14).