CN221683513U - A reducer with overload protection function - Google Patents

Abstract

The utility model discloses a speed reducer with overload protection function, including a machine body, a first connecting shaft is fixedly connected to the top inner wall of the machine body, a second gear is rotatably connected to the outer surface of the first connecting shaft, a fixing block is fixedly connected to the side surface of the first connecting shaft, a first spring is fixedly connected to the end of the fixing block away from the first connecting shaft, a second connecting shaft is fixedly connected to the end of the first spring away from the fixing block, and a limiting block is fixedly connected to the outer surface of the second connecting shaft. In the above structure, the limiting block slides in the limiting groove, the clamping block can not only fix it, but also expand and limit it when the second connecting shaft is displaced by the pressure of the spring to prevent it from rebounding and separating it from the first gear, thereby avoiding the problem of internal parts continuously rotating and thus causing necrosis when the machine is overloaded.

Description

A reducer with overload protection function

Technical Field

The utility model relates to the technical field of reducers, in particular to a reducer with an overload protection function.

Background Art

The reducer is an independent closed transmission device between the prime mover and the working machine. Its function is to reduce the high speed output by the motor to a low speed through the transmission components of the reducer, such as the gear set, and achieve the purpose of deceleration by meshing the gear with a small number of teeth on the input shaft of the reducer with the large gear on the output shaft, so that it can be used by other parts. During the use of the reducer, the output shaft will be overloaded due to excessive resistance, and the internal gear parts will be damaged or displaced. If the internal parts continue to output and rotate, it will cause machine necrosis.

Utility Model Content

The purpose of the utility model is to solve at least one of the technical problems existing in the prior art and to provide a reducer with an overload protection function. The limit block slides in the limit groove. The clamping block can not only fix it, but also expand it to limit it when the second connecting shaft is displaced through the pressure of the spring to prevent it from rebounding and separate it from the first gear, thereby avoiding the problem of continuous rotation of internal parts and resulting in necrosis when the machine is overloaded.

The utility model also provides a reducer with the above-mentioned overload protection function, including:

A machine body, wherein a first connecting shaft is fixedly connected to the top inner wall of the machine body, a second gear is rotatably connected to the outer surface of the first connecting shaft, a fixing block is fixedly connected to the side surface of the first connecting shaft, a first spring is fixedly connected to one end of the fixing block away from the first connecting shaft, a second connecting shaft is fixedly connected to one end of the first spring away from the fixing block, and a limiting block is fixedly connected to the outer surface of the second connecting shaft;

An adjusting block is fixedly connected to the top inner wall of the body, a limiting groove is arranged inside the adjusting block, a round hole is arranged at the top end of the second connecting shaft, a second spring is fixedly connected to the top inner wall of the adjusting block, a clamping block is fixedly connected to the lower end of the second spring, when the second connecting shaft is displaced by thrust, the second spring loses pressure and expands, the clamping block becomes longer and clamps the second connecting shaft to prevent the second connecting shaft from rebounding, and the end of the second connecting shaft away from the adjusting block is rotatably connected to a third gear.

According to the reducer with overload protection function, a fixing seat is fixedly connected to the side surface of the body, and a motor is fixedly connected to the upper surface of the fixing seat to provide power for all gears inside.

According to the reducer with overload protection function, the output end of the motor is fixedly connected to the first rotating shaft, the end of the first rotating shaft away from the motor is rotatably connected to the first gear, and the outer surface of the first gear is rotatably connected to the second gear.

According to the reducer with overload protection function, the outer surface of the limit block is slidably connected to the limit groove, so that it can be limited and moved at the same time.

According to the reducer with overload protection function, a ball is arranged at one end of the block away from the second spring, and the ball is slidably connected to the circular hole, so that the block can slide out when subjected to thrust.

According to the reducer with overload protection function, the outer surface of the third gear is rotatably connected to the fourth gear, the inner part of the fourth gear is rotatably connected to the second rotating shaft, and the side surface of the second rotating shaft is rotatably connected to the output port.

According to the reducer with overload protection function, a shell is provided on the side surface of the body, which can be removed, and an outer surface of the third gear is rotationally connected to the second gear.

According to the reducer with overload protection function, the motor is connected to an external power supply.

Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS

The utility model is further described below in conjunction with the accompanying drawings and embodiments;

FIG1 is an overall structural diagram of a reducer with an overload protection function according to the present invention;

FIG2 is an internal structure diagram of a reducer with overload protection function according to the present invention;

FIG3 is an enlarged view of the local structure of a reducer with an overload protection function of the utility model;

FIG. 4 is an overall appearance diagram of a reducer with an overload protection function according to the present invention.

Legend:

1. Machine body; 2. Fixed seat; 3. Motor; 4. First rotating shaft; 5. First gear; 6. Second gear; 7. First connecting shaft; 8. Fixed block; 9. First spring; 10. Second connecting shaft; 11. Adjusting block; 12. Limiting groove; 13. Limiting block; 14. Round hole; 15. Block; 16. Second spring; 17. Third gear; 18. Fourth gear; 19. Second rotating shaft; 20. Output port; 21. Casing.

DETAILED DESCRIPTION

This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

1-4, an embodiment of the utility model is a reducer with an overload protection function, which includes a body 1, a first connecting shaft 7 is fixedly connected to the top inner wall of the body 1, the outer surface of the first connecting shaft 7 is rotatably connected to the second gear 6, the side surface of the first connecting shaft 7 is fixedly connected to a fixing block 8, the end of the fixing block 8 away from the first connecting shaft 7 is fixedly connected to a first spring 9, the end of the first spring 9 away from the fixing block 8 is fixedly connected to the second connecting shaft 10, the outer surface of the second connecting shaft 10 is fixedly connected to a limiting block 13, the side surface of the body 1 is fixedly connected to a fixing seat 2, the upper surface of the fixing seat 2 is fixedly connected to a motor 3 to provide power for all gears inside, the output end of the motor 3 is fixedly connected to a first rotating shaft 4, the end of the first rotating shaft 4 away from the motor 3 is rotatably connected to the first gear 5, and the outer surface of the first gear 5 is rotatably connected to the second gear 6.

The top inner wall of the body 1 is fixedly connected with an adjusting block 11, and a limiting groove 12 is arranged inside the adjusting block 11. The outer surface of the limiting block 13 is slidably connected with the limiting groove 12, so that it can be moved while limiting. A round hole 14 is arranged at the top of the second connecting shaft 10, and a second spring 16 is fixedly connected with the top inner wall of the adjusting block 11. A clamping block 15 is fixedly connected with the lower end of the second spring 16. When the second connecting shaft 10 is displaced by thrust, the second spring 16 loses pressure and expands, and the clamping block 15 becomes longer to clamp the second connecting shaft 10 to prevent the second connecting shaft 10 from rebounding, and the clamping block 15 is away from A ball is provided at one end of the second spring 16, and the ball is slidably connected to the circular hole 14. The block 15 can slide out when subjected to thrust. The end of the second connecting shaft 10 away from the adjusting block 11 is rotatably connected to the third gear 17, and the outer surface of the third gear 17 is rotatably connected to the fourth gear 18. The outer surface of the third gear 17 is rotatably connected to the second gear 6, and the inside of the fourth gear 18 is rotatably connected to the second rotating shaft 19. The side surface of the second rotating shaft 19 is rotatably connected to the output port 20. The side surface of the body 1 is provided with a shell 21, which can be disassembled, and the motor 3 is connected to an external power supply.

Working principle: start the motor 3, drive the first gear 5 to rotate, the first gear 5 drives the second gear 6 to rotate, the second gear 6 drives the third gear 17 to rotate. When the reducer is overloaded, its thrust will be greater than its rotational force, so that the first spring 9 is thrust, the third gear 17 is displaced, the block 15 is squeezed and slides out of the circular hole 14, the second spring 16 loses pressure and expands, so that the block 15 is stuck on the outside of the circular hole 14, so that the second connecting shaft 10 cannot be reset, and the machine stops running, avoiding the problem of machine necrosis due to overload. After stopping running, the staff can manually reset the third gear 17.

The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims (8)

1. The utility model provides a take speed reducer of overload protection function which characterized in that includes:

The machine body (1), the top inner wall fixedly connected with first connecting axle (7) of machine body (1), the surface of first connecting axle (7) rotates and is connected with second gear (6), the side surface fixedly connected with fixed block (8) of first connecting axle (7), the one end fixedly connected with first spring (9) of first connecting axle (7) is kept away from to fixed block (8), the one end fixedly connected with second connecting axle (10) of fixed block (8) is kept away from to first spring (9), the surface fixedly connected with stopper (13) of second connecting axle (10);

the utility model discloses a machine body, including organism (1), roof inner wall fixedly connected with regulating block (11), regulating block (11) inside is provided with spacing groove (12), the top of second connecting axle (10) is provided with round hole (14), roof inner wall fixedly connected with second spring (16) of regulating block (11), the lower extreme fixedly connected with fixture block (15) of second spring (16), the one end rotation that regulating block (11) was kept away from to second connecting axle (10) is connected with third gear (17).

2. The speed reducer with the overload protection function according to claim 1, wherein a fixing seat (2) is fixedly connected to the side surface of the machine body (1), and a motor (3) is fixedly connected to the upper surface of the fixing seat (2).

3. The speed reducer with the overload protection function according to claim 2, wherein the output end of the motor (3) is fixedly connected with a first rotating shaft (4), one end, far away from the motor (3), of the first rotating shaft (4) is rotatably connected with a first gear (5), and the outer surface of the first gear (5) is rotatably connected with a second gear (6).

4. The speed reducer with the overload protection function according to claim 1, wherein the outer surface of the limiting block (13) is in sliding connection with the limiting groove (12).

5. The speed reducer with overload protection function according to claim 1, wherein a ball is arranged at one end of the clamping block (15) far away from the second spring (16), and the ball is slidably connected with the round hole (14).

6. The speed reducer with the overload protection function according to claim 1, wherein a fourth gear (18) is rotatably connected to the outer surface of the third gear (17), a second rotating shaft (19) is rotatably connected to the inner portion of the fourth gear (18), and an output port (20) is rotatably connected to the side surface of the second rotating shaft (19).

7. A reducer with overload protection function according to claim 1, characterized in that the side surface of the machine body (1) is provided with a housing (21), and the outer surface of the third gear (17) is rotatably connected with the second gear (6).

8. A reducer with overload protection function according to claim 1, characterized in that the motor (3) is connected to an external power source.