CN113531090B

CN113531090B - Speed reducer with overload protection function

Info

Publication number: CN113531090B
Application number: CN202110871049.4A
Authority: CN
Inventors: 陈建兵; 李建堂; 赵金山; 刘彩娟; 杨华; 曲建华; 许金运
Original assignee: Jiangsu Jinhuai Reducer Co ltd
Current assignee: Jiangsu Jinhuai Reducer Co ltd
Priority date: 2021-07-30
Filing date: 2021-07-30
Publication date: 2022-11-01
Anticipated expiration: 2041-07-30
Also published as: CN113531090A

Abstract

The invention discloses a speed reducer with an overload protection function, which comprises a base, wherein lug blocks are fixed at two ends of the base through bolts, a placing groove is formed in the top of the base, a first sliding groove is formed in the inner wall of the bottom of the placing groove, two first sliding blocks are connected in the first sliding groove in a sliding mode, the same first spring is fixed between the two first sliding blocks through bolts, the top of each first sliding block is rotatably connected with a supporting plate through a bearing, the tops of the two supporting plates are rotatably connected with the same speed reducer base through bearings, a pressing block is fixed at the bottom of the speed reducer base through bolts, and an emergency power-off switch is fixed on the inner wall of the bottom of the placing groove through bolts. When the overload protection device is overloaded, the torque applied to the load connection end is increased, so that the speed reducer base moves downwards, the two first sliding blocks are extruded inwards through the supporting plate, the pressing block gradually moves downwards until the pressing block is contacted with the emergency power-off switch, the speed reducer is powered off, and the overload protection function is achieved.

Description

Speed reducer with overload protection function

Technical Field

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

Background

The reducer is an independent part consisting of gear transmission, worm transmission and gear-worm transmission enclosed in a rigid shell, and is commonly used as a speed reduction transmission device between a prime mover and a working machine. The function of matching the rotation speed and transmitting the torque between the prime mover and the working machine or the actuating mechanism is very extensive in modern machinery.

In the use process of the speed reducer, if the overload phenomenon occurs, the friction torque between the driving mechanism and the transmission gear is too large, the transmission gear is easy to deflect, so that the stability of the speed reducer in operation is influenced, the traditional speed reducer does not have the overload protection function, great potential safety hazards exist, the speed reducer is easy to damage, and therefore corresponding improvement is made aiming at the problem.

Disclosure of Invention

Based on the technical problems in the background art, the invention provides a speed reducer with an overload protection function.

The invention provides a speed reducer with an overload protection function, which comprises a base, wherein lug blocks are fixed at two ends of the base through bolts, a placing groove is formed in the top of the base, a first sliding groove is formed in the inner wall of the bottom of the placing groove, two first sliding blocks are connected in the first sliding groove in a sliding mode, the same first spring is fixed between the two first sliding blocks through bolts, the top of each first sliding block is rotatably connected with a supporting plate through a bearing, the tops of the two supporting plates are rotatably connected with the same speed reducer base through bearings, a pressing block is fixed at the bottom of the speed reducer base through bolts, an emergency power-off switch is fixed on the inner wall of the bottom of the placing groove through bolts, and the emergency power-off switch is arranged under the pressing block.

Preferably, two load connecting ends are fixed at the front end of the speed reducer base through bolts.

Preferably, the inner walls of the two ends of the first sliding groove are provided with two symmetrically distributed limiting grooves, limiting blocks are connected in the limiting grooves in a sliding mode, and the limiting blocks and the first sliding blocks are fixed through bolts.

Preferably, the inner walls of the two sides of the placement groove are provided with second sliding grooves, second sliding blocks are connected in the second sliding grooves in a sliding mode, the same second spring is fixed between the second sliding blocks and the inner walls of the second sliding grooves through bolts, and the second sliding blocks and the speed reducer base are fixed through bolts.

Preferably, the bottom of the speed reducer base is provided with a disc, a motor is arranged in the disc, and an output shaft of the motor is connected with a fan.

Preferably, a third sliding groove is formed in the inner wall of the top of the disc, a third sliding block is connected to the third sliding groove in a sliding mode, a same third spring is fixed between the third sliding block and the side wall of the third sliding groove through a bolt, and the third sliding block and the motor are fixed through a bolt.

Preferably, the bottom of the speed reducer base is provided with a ring groove, a plurality of moving blocks are connected in the ring groove in a sliding mode, and the moving blocks and the circular disc are fixed through bolts.

The invention has the following beneficial effects:

1. through being provided with first spring, when the speed reducer work transships, the moment of torsion that receives on the load connection increases for speed reducer frame moves down, extrudees two first sliders to the inboard through the backup pad then, and the press block moves down gradually, and until and emergency power-off switch contact, cuts off the power supply with the speed reducer, thereby reaches overload protection's function.

2. Through being provided with second spout and second slider, can make the speed reducer seat follow the second slider and move down along the second spout to carry out spacing removal to the speed reducer seat, thereby effectively improve the stability of speed reducer seat motion process.

3. Through being provided with the fan, can the starter motor, motor output shaft drives the fan and rotates, dispel the heat to the reduction gear base, because the motor during operation produces vibration, can carry on spacingly through the third spout, make the motor follow the third slider and have a small amplitude along the third spout and remove, and the effect through the third spring, make it carry out reciprocal small amplitude and remove, and on motor vibrational force used the movable block, can make the disc slowly take place the motion in the annular, thereby make heat radiating area improve, thereby improve the radiating effect.

Drawings

Fig. 1 is a schematic overall structure diagram of a speed reducer with an overload protection function according to the present invention;

fig. 2 is a schematic view of a first angle structure inside a speed reducer with an overload protection function according to the present invention;

fig. 3 is an enlarged schematic structural diagram of a position a of a speed reducer with an overload protection function according to the present invention;

fig. 4 is a schematic view of a second angle structure inside the speed reducer with the overload protection function according to the present invention;

fig. 5 is a schematic diagram of an internal structure of a disk of a speed reducer with an overload protection function according to the present invention;

fig. 6 is a schematic view of a bottom structure of a speed reducer base of a speed reducer with an overload protection function according to the present invention.

In the figure: 1. a base; 2. an ear piece; 3. a placing groove; 4. a first chute; 5. a first slider; 6. a first spring; 7. a support plate; 8. a speed reducer base; 9. a load connection end; 10. a limiting groove; 11. a limiting block; 12. a second chute; 13. a second slider; 14. a second spring; 15. a disc; 16. a third chute; 17. a third slider; 18. a third spring; 19. a motor; 20. a fan; 21. a ring groove; 22. moving the mass.

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.

Example 1

Referring to fig. 1-4, a speed reducer with overload protection function, including base 1, base 1 both ends all have ear piece 2 through the bolt fastening, place groove 3 has been seted up at base 1 top, place 3 bottom inner walls in groove and seted up first spout 4, sliding connection has two first sliders 5 in the first spout 4, there is same first spring 6 through the bolt fastening between two

first sliders

5, 5 tops of first slider are connected with backup pad 7 through the bearing rotation, 7 tops of two backup pads are connected with same speed reducer frame 8 through the bearing rotation, 8 bottoms of speed reducer frame have the press block through the bolt fastening, place 3 bottom inner walls in groove and pass through the bolt fastening and have emergent power off switch, emergent power off switch sets up under the press block.

According to the invention, two load connecting ends 9 are fixed at the front end of the speed reducer base 8 through bolts, two symmetrically distributed limiting grooves 10 are formed in the inner walls of the two ends of the first sliding groove 4, limiting blocks 11 are connected in the limiting grooves 10 in a sliding mode, the limiting blocks 11 and the first sliding block 5 are fixed through bolts, second sliding grooves 12 are formed in the inner walls of the two sides of the placing groove 3, second sliding blocks 13 are connected in the second sliding grooves 12 in a sliding mode, the same second spring 14 is fixed between the second sliding blocks 13 and the inner walls of the second sliding grooves 12 through bolts, and the second sliding blocks 13 and the speed reducer base 8 are fixed through bolts.

During the use, when speed reducer work transships, the moment of torsion that receives on the load link 9 increases, make speed reducer base 8 move down, then extrude two first sliders 5 inboard through backup pad 7, press the briquetting and move down gradually, until and the contact of emergency power-off switch, cut off the power supply with the speed reducer, thereby reach overload protection's function, be provided with second spout 12 and second slider 13, can make speed reducer base 8 follow second slider 13 and move down along second spout 12, thereby carry out spacing removal to speed reducer base 8, thereby effectively improve speed reducer base 8 course of motion's stability.

Example 2

Referring to fig. 1-6, a disk 15 is arranged at the bottom of a speed reducer base 8, a motor 19 is arranged in the disk 15, an output shaft of the motor 19 is connected with a fan 20, a third chute 16 is formed in the inner wall of the top of the disk 15, a third sliding block 17 is slidably connected in the third chute 16, the same third spring 18 is fixed between the third sliding block 17 and the side wall of the third chute 16 through bolts, the third sliding block 17 and the motor 19 are fixed through bolts, an annular groove 21 is formed in the bottom of the speed reducer base 8, a plurality of moving blocks 22 are slidably connected in the annular groove 21, and the moving blocks 22 are fixed with the disk 15 through bolts.

During the use, starter motor 19, motor 19 output shaft drives fan 20 and rotates, dispel the heat to speed reducer seat 8, because motor 19 during operation produces vibration, can be spacing it through third spout 16, make motor 19 follow third slider 17 and have a small amplitude along third spout 16 and remove, and through the effect of third spring 18, make it reciprocate a small amplitude and remove, and motor 19 vibrational force is used on movable block 22, can make disc 15 can slowly take place the motion in annular 21, thereby make heat radiating area improve, thereby improve the radiating effect.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. The speed reducer with the overload protection function comprises a base (1) and is characterized in that two ends of the base (1) are fixedly connected with lug blocks (2), a placing groove (3) is formed in the top of the base (1), a first sliding groove (4) is formed in the inner wall of the bottom of the placing groove (3), two first sliding blocks (5) are connected in the first sliding groove (4) in a sliding mode, the same first spring (6) is fixedly connected between the two first sliding blocks (5), the top of each first sliding block (5) is rotatably connected with a supporting plate (7), the top of each supporting plate (7) is rotatably connected with the same speed reducer base (8), the bottom of each speed reducer base (8) is fixedly connected with a pressing block, the inner wall of the bottom of the placing groove (3) is fixedly connected with an emergency power-off switch, and the emergency power-off switch is arranged right below the pressing block;

the front end of the speed reducer base (8) is fixedly connected with two load connecting ends (9);

two symmetrically distributed limiting grooves (10) are formed in the inner walls of the two ends of the first sliding groove (4), limiting blocks (11) are connected in the limiting grooves (10) in a sliding mode, and the limiting blocks (11) are fixedly connected with the first sliding block (5);

the inner walls of two sides of the placing groove (3) are respectively provided with a second sliding groove (12), a second sliding block (13) is connected in the second sliding groove (12) in a sliding manner, the same second spring (14) is fixedly connected between the second sliding block (13) and the inner wall of the second sliding groove (12), and the second sliding block (13) is fixedly connected with the speed reducer base (8);

a disc (15) is arranged at the bottom of the speed reducer base (8), a motor (19) is arranged in the disc (15), and an output shaft of the motor (19) is connected with a fan (20);

a third sliding groove (16) is formed in the inner wall of the top of the disc (15), a third sliding block (17) is connected in the third sliding groove (16) in a sliding mode, a same third spring (18) is fixedly connected between the third sliding block (17) and the side wall of the third sliding groove (16), and the third sliding block (17) is fixedly connected with a motor (19);

annular groove (21) have been seted up to reduction gear seat (8) bottom, sliding connection has a plurality of movable blocks (22) in annular groove (21), fixed connection between movable block (22) and disc (15).