CN216555039U

CN216555039U - Disc type overload protection anti-impact speed reducer

Info

Publication number: CN216555039U
Application number: CN202122851101.8U
Authority: CN
Inventors: 鞠青云; 鞠承轩; 孙忠元; 何长军; 王永胜; 崔玉申; 王军娜; 曾立军; 刘发勇
Original assignee: Qingdao Huatian Weiye Technology Co ltd
Current assignee: Qingdao Huatian Weiye Technology Co ltd
Priority date: 2021-11-20
Filing date: 2021-11-20
Publication date: 2022-05-17
Anticipated expiration: 2031-11-20

Abstract

The utility model discloses a disc type overload protection anti-impact speed reducer, in particular to the field of speed reducers, most of the existing speed reducers can not effectively protect the internal structure when being overloaded, thus increasing the loss between parts after long-term use and further causing the speed reducer to have service life hidden trouble, the disc type overload protection anti-impact speed reducer comprises a shell and an input shaft, a plurality of first friction plates which are symmetrically distributed are fixedly arranged in the hollow shaft, a second friction plate is movably arranged on one side of each first friction plate, one end of each second friction plate is respectively and fixedly connected with the outer side of a connecting shaft, the first friction plates and the second friction plates are tightly attached, a connecting rod is fixedly arranged at one end of the hollow shaft, which is far away from the connecting shaft, the torsion of the input shaft is greater than the friction force between the first friction plates and the second friction plates, so that the hollow shaft is in an idle running state, and the condition that the speed reducer is not damaged by the protection structure can be avoided, thereby achieving the purpose of protecting the speed reducer.

Description

Disc type overload protection anti-impact speed reducer

Technical Field

The utility model relates to the technical field of speed reducers, in particular to a disc type overload protection impact-resistant speed reducer.

Background

The speed reducer is generally used for low-speed and large-torque transmission equipment, and the purpose of reducing speed is achieved by meshing a motor, an internal combustion engine or other high-speed running power with a large gear on an output shaft through a gear with a small number of teeth on an input shaft of the speed reducer.

1. Most of the existing speed reducers cannot effectively protect internal structures when being overloaded during driving, so that the loss among parts can be increased after long-term use, and the hidden danger of the service life of the speed reducer is further caused;

2. when an input end of an existing speed reducer has impact force, the damage to the meshing position of internal parts is large, and then the speed reducer is damaged, so that the disc type overload protection impact-proof speed reducer is provided for solving the problems.

SUMMERY OF THE UTILITY MODEL

In view of the technical deficiencies, the present invention provides a disc type overload protection and impact prevention speed reducer to solve the problems in the background art.

In order to solve the technical problems, the utility model adopts the following technical scheme: the utility model provides a disc type overload protection anti-impact speed reducer which comprises a shell and an input shaft, wherein one end of the input shaft movably penetrates through one side of the shell, one side, far away from the input shaft, inside the shell is rotatably inserted with a connecting shaft, a first gear is fixedly sleeved on the outer surface of the connecting shaft, a second gear is meshed with the outer side of the first gear, an output shaft is fixedly arranged on one side, close to the inner wall of the shell, of the second gear, and one end of the output shaft movably penetrates through the shell;

a hollow shaft is movably sleeved at one end of the connecting shaft, a plurality of first friction plates which are symmetrically distributed are fixedly arranged in the hollow shaft, a second friction plate is movably arranged on one side of each of the first friction plates, one end of each of the second friction plates is fixedly connected with the outer side of the connecting shaft, the first friction plates and the second friction plates are tightly attached to each other, a connecting rod is fixedly arranged at one end of the hollow shaft, which is far away from the connecting shaft, a tooth socket is formed at one end of the connecting rod, which is far away from the hollow shaft, a tooth column is fixedly arranged at one end of the input shaft, and one end of the tooth column is clamped in the tooth socket,

preferably, the fixed dead lever that is equipped with the symmetric distribution of the inside one end of hollow shaft, two the one end that the dead lever is close to the connecting axle all is seted up flutedly, two the equal activity card in inside of recess is equipped with the slider, two the one end of slider is all fixed and is equipped with the spring, two the one end of spring is all fixed and is equipped with the buffer board, two one side of buffer board is laminated with two first friction discs wherein respectively.

Preferably, the outer side of the shell is threaded with symmetrically-arranged screws, and one ends of the two screws respectively movably penetrate through the two fixing rods and are respectively rotatably inserted into the side of the sliding block.

Preferably, the nut ends of the two screws are provided with notches.

Preferably, the depth of the gullet is greater than the length of the tooth post.

Preferably, the friction torque between the first friction plate and the second friction plate is controlled to be 8.8-9.8 N.m.

Compared with the prior art, the utility model has the beneficial effects that:

1. by arranging the first friction plate and pressing and fitting the first friction plate and the second friction plate, when the torque force of the input shaft is greater than the friction force between the first friction plate and the second friction plate, the hollow shaft is in an idle running state, so that the condition that the speed reducer is damaged without a protection structure can be avoided, and the purpose of protecting the speed reducer is achieved;

2. through being equipped with the input shaft, through input shaft extrusion connecting rod, connecting rod extrusion hollow shaft, hollow shaft extrusion dead lever for slider extrusion spring cushions, just so can avoid the condition that spare part appears the damage, thereby reaches the purpose of protection speed reducer internals.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

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

FIG. 2 is a schematic cross-sectional view of the structure of the present invention.

Fig. 3 is an enlarged view of a structure in fig. 2.

FIG. 4 is a schematic cross-sectional view of a hollow shaft according to the present invention.

Fig. 5 is a schematic view of the fixing rod structure of the present invention.

Description of reference numerals: 1. a housing; 2. an input shaft; 3. a connecting shaft; 4. a first gear; 5. a second gear; 6. an output shaft; 7. a hollow shaft; 8. a first friction plate; 9. a second friction plate; 10. a connecting rod; 11. a tooth socket; 12. a tooth post; 13. fixing the rod; 14. a groove; 15. a slider; 16. a spring; 17. a buffer plate; 18. a screw; 19. and (6) cutting.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example (b): as shown in fig. 1-5, the utility model provides a disc-type overload protection anti-impact speed reducer, which comprises a housing 1 and an input shaft 2, wherein one end of the input shaft 2 movably penetrates through one side of the housing 1, one side of the interior of the housing 1, which is far away from the input shaft 2, is rotatably inserted with a connecting shaft 3, the outer surface of the connecting shaft 3 is fixedly sleeved with a first gear 4, the outer side of the first gear 4 is engaged with a second gear 5, one side of the second gear 5, which is close to the inner wall of the housing 1, is fixedly provided with an output shaft 6, and one end of the output shaft 6 movably penetrates through the housing 1;

one end of the connecting shaft 3 is movably sleeved with a hollow shaft 7, a plurality of first friction plates 8 which are symmetrically distributed are fixedly arranged inside the hollow shaft 7, one sides of the plurality of first friction plates 8 are movably provided with second friction plates 9, one ends of the plurality of second friction plates 9 are respectively and fixedly connected with the outer side of the connecting shaft 3, the first friction plates 8 are tightly attached to the second friction plates 9, the friction torque between the first friction plates 8 and the second friction plates 9 is controlled to be 8.8-9.8 N.m, one end of the hollow shaft 7, far away from the connecting shaft 3, is fixedly provided with a connecting rod 10, one end of the connecting rod 10, far away from the hollow shaft 7, is provided with a tooth socket 11, one end of the input shaft 2 is fixedly provided with a tooth post 12, one end of the tooth socket 12 is clamped inside the tooth socket 11, the depth of the tooth socket 11 is larger than the length of the tooth post 12, the outer side threads of the shell 1 are penetrated with symmetrical and respective screw rods 18, one end of the two screw rods 18 are respectively and movably penetrated through two fixing rods 13 and respectively and are respectively inserted into the side of the sliding block 15, the screw cap ends of the two screw rods 18 are provided with the notches 19, the screw rods 18 are rotated through the notches 19, the screw rods 18 move on the shell 1, meanwhile, the screw rods 18 drive the sliding blocks 15 to move in the grooves 14, the sliding blocks 15 compress the springs 16 to generate elastic force, the springs 16 extrude the buffer plates 17 through the elastic force, the buffer plates 17 tightly press the first friction plates 8 and the second friction plates 9, therefore, the hollow shaft 7 can be linked with the connecting shaft 3, the torsion of the input shaft 2 is greater than the friction force between the first friction plates 8 and the second friction plates 9, the hollow shaft 7 is in an idle running state, the condition that the speed reducer is damaged without a protection structure can be avoided, and the purpose of protecting the speed reducer is achieved.

Further, the fixed dead lever 13 that is equipped with symmetric distribution of the inside one end of hollow shaft 7, the one end that two dead levers 13 are close to connecting axle 3 is all seted up flutedly 14, the equal activity card in inside of two recesses 14 is equipped with slider 15, the one end of two sliders 15 is all fixed and is equipped with spring 16, the one end of two spring 16 is all fixed and is equipped with buffer board 17, one side of two buffer board 17 is laminated with two first friction discs 8 wherein respectively, through 2 extrusion connecting rods 10 of input shaft, connecting rod 10 extrusion hollow shaft 7, hollow shaft 7 extrusion dead lever 13, make slider 15 extrusion spring 16 cushion, just so can avoid spare part the condition of damage to appear, thereby reach the purpose of protection speed reducer internals.

Working principle; firstly, the screw 18 is rotated through the notch 19, so that the screw 18 moves on the shell 1, meanwhile, the screw 18 drives the slider 15 to move in the groove 14, the slider 15 compresses the spring 16 to generate elasticity, the spring 16 extrudes the buffer plate 17 through the elasticity, so that the buffer plate 17 tightly presses the first friction plate 8 and the second friction plate 9, the hollow shaft 7 and the connecting shaft 3 can be linked, then, the input shaft 2 is driven to rotate, the input shaft 2 drives the tooth post 12 to rotate, the tooth post 12 drives the connecting rod 10 to rotate through the matching of the tooth groove 11, the connecting rod 10 drives the hollow shaft 7 to rotate, the hollow shaft 7 drives the connecting shaft 3 to rotate through the friction force between the first friction plate 8 and the second friction plate 9, the connecting shaft 3 drives the first gear 4 to rotate, the first gear 4 drives the second gear 5 engaged with the first gear to rotate, the second gear 5 drives the output shaft 6 to rotate, when the speed reducer is overloaded, the torsion of input shaft 2 is greater than the frictional force between first friction disc 8 and the second friction disc 9, make hollow shaft 7 be in idle running state, just so can avoid the condition that the speed reducer does not have the protective structure and damage, thereby reach the purpose of protection speed reducer, when the speed reducer has the impact force at the input, input shaft 2 extrusion connecting rod 10, connecting rod 10 extrudees hollow shaft 7, hollow shaft 7 extrusion dead lever 13, make slider 15 extrusion spring 16 cushion, just so can avoid spare part the condition of damage to appear, thereby reach the purpose of protection speed reducer internals.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the utility model. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. A disc type overload protection anti-impact speed reducer comprises a shell (1) and an input shaft (2), and is characterized in that one end of the input shaft (2) movably penetrates through one side of the shell (1), one side, far away from the input shaft (2), of the shell (1) is rotatably inserted with a connecting shaft (3), a first gear (4) is fixedly sleeved on the outer surface of the connecting shaft (3), a second gear (5) is meshed with the outer side of the first gear (4), an output shaft (6) is fixedly arranged on one side, close to the inner wall of the shell (1), of the second gear (5), and one end of the output shaft (6) movably penetrates through the shell (1);

the one end movable sleeve of connecting axle (3) is equipped with hollow axle (7), the fixed first friction disc (8) that is equipped with a plurality of symmetric distribution in inside of hollow axle (7), a plurality of one side of first friction disc (8) is all moved about and is equipped with second friction disc (9), a plurality of the one end of second friction disc (9) respectively with the outside fixed connection of connecting axle (3), first friction disc (8) and second friction disc (9) closely laminate, the one end that connecting axle (3) were kept away from in hollow axle (7) is fixed and is equipped with connecting rod (10), tooth's socket (11) have been seted up to the one end that hollow axle (7) were kept away from in connecting rod (10), the fixed tooth post (12) that is equipped with in one end of input shaft (2), the one end card of tooth post (12) is established inside tooth's socket (11).

2. The disc type overload protection and impact prevention speed reducer as claimed in claim 1, wherein fixing rods (13) are symmetrically distributed and fixed at one end of the inside of the hollow shaft (7), grooves (14) are formed at one ends of the two fixing rods (13) close to the connecting shaft (3), sliding blocks (15) are movably clamped inside the two grooves (14), springs (16) are fixed at one ends of the two sliding blocks (15), buffer plates (17) are fixed at one ends of the two springs (16), and one sides of the two buffer plates (17) are respectively attached to the two first friction plates (8).

3. The disc type overload protection and impact prevention speed reducer according to claim 1, wherein the outer threads of the housing (1) are penetrated with symmetrically-arranged screws (18), and one ends of the two screws (18) are respectively movably penetrated through the two fixing rods (13) and respectively rotatably inserted at the sides of the sliding block (15).

4. The disc type overload protection and impact prevention speed reducer as claimed in claim 3, wherein the nut ends of the two screws (18) are provided with notches (19).

5. The disc type overload protection and impact prevention speed reducer as claimed in claim 1, wherein the depth of the tooth grooves (11) is greater than the length of the tooth columns (12).

6. The disc type overload protection and impact prevention speed reducer as claimed in claim 1, wherein the friction torque between the first friction plate (8) and the second friction plate (9) is controlled to be 8.8-9.8 N.m.