Belt tensioning mechanism

Abstract

The utility model relates to the field of belt tensioning, and discloses a belt tensioning mechanism which comprises a fixed lower plate, side plates are vertically and fixedly connected to the front side and the rear side of the top of the fixed lower plate, and a movable upper plate is arranged at the top of the fixed lower plate and located between the two side plates. The right ends of the front side wall and the rear side wall of a movable upper plate are rotationally connected with the right ends of the inner side walls of the two side plates correspondingly, two through grooves are formed in the left side of the top of the movable upper plate and distributed front and back, protruding plates are perpendicularly and fixedly connected to the front side and the rear side of the left end of the bottom of the movable upper plate correspondingly, and a limiting column is rotationally connected between the opposite side walls of the two protruding plates. The height of the movable upper plate can be accurately controlled by adjusting the position of the nut on the stud, so that the tension degree of the belt can be flexibly adjusted.

Description

Technical Field

[0001] The utility model relates to the field of belt tensioning, and in particular to a belt tensioning mechanism. Background Art

[0002] In a belt drive system, ensuring the belt tension is crucial. Belt tension not only affects transmission efficiency, but also affects the service life of the belt and the stability of the entire transmission system.

[0003] Current belt transmission systems usually adopt a method of adding an additional pulley and adjusting the pulley to adjust the belt tension, but this will cause the belt to be subjected to additional stress during use and reduce its service life. Utility Model Content

[0004] In order to overcome the above-mentioned deficiencies, the utility model provides a belt tensioning mechanism.

[0005] The technical solution adopted by this utility model:

[0006] The lockhole that is formed on the two ends of the lifting link is formed on the upper part of the hinge part, and the lockhole engages with the two ends of the hinge part respectively on the upper part of the hinge part, and the lockhole engages with the two ends of the hinge part respectively on the hinge part.

[0007] The fixed lower plate is fixedly connected to the front side of the top of the workbench, the motor is fixedly installed on the top middle part of the movable upper plate, the front side wall of the workbench is rotatably connected to the fixed pulley, the front end of the output shaft of the motor is fixedly connected to the movable pulley, and the belt is sleeved on the outer walls of the movable pulley and the fixed pulley.

[0008] Beneficial effects of the utility model:

[0009] The utility model can accurately control the height of the movable upper plate by adjusting the position of the nut on the stud, thereby realizing flexible adjustment of the belt tension.

[0010] The belt tensioning mechanism adopts fewer parts and a simple structure, is easy to manufacture, install and maintain, can adapt to belts of different lengths and tightness, and is suitable for various belt transmission systems. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the structure of the utility model;

[0012] Figure 2 This is a schematic diagram of the installation of the utility model;

[0013] Figure 3 yes Figure 2 Schematic diagram of the right perspective structure;

[0014] Figure 4 yes Figure 2 Left view of;

[0015] Figure 5 yes Figure 4 Cross-section view at AA in the middle.

[0016] In all the drawings, the specific reference numerals are: 1. workbench; 2. fixed pulley; 3. fixed lower plate; 4. side plate; 5. movable upper plate; 6. motor; 7. movable pulley; 8. belt; 9. convex plate; 10. limiting column; 11. through groove; 12. rotating rod; 13. stud; 14. nut. DETAILED DESCRIPTION

[0017] like Figure 1-5 As shown: A belt tensioning mechanism, including a fixed lower plate 3, the front and rear sides of the top of the fixed lower plate 3 are vertically fixedly connected to the side plates 4, the top of the fixed lower plate 3 is provided with a movable upper plate 5, the movable upper plate 5 is located between the two side plates 4, the right ends of the front and rear side walls of the movable upper plate 5 are respectively rotatably connected to the right ends of the inner side walls of the two side plates 4, two through slots 11 are opened on the left side of the top of the movable upper plate 5, the two through slots 11 are distributed front and back, the front and rear sides of the left end of the bottom of the movable upper plate 5 are vertically fixedly connected to the convex plates 9, and the rotation connection between the opposite side walls of the two convex plates 9 is limited. The outer walls of the two studs 13 are threadedly connected to the upper and lower outer walls of the limiting column 10, and the nuts 14 are respectively located at the top and bottom of the limiting column 10, and the upper and lower nuts 14 are respectively pressed against the upper and lower outer walls of the limiting column 10.

[0018] The fixed lower plate 3 is fixedly connected to the front side of the top of the workbench 1, the motor 6 is fixedly installed in the middle of the top of the movable upper plate 5, the front side wall of the workbench 1 is rotatably connected to the fixed pulley 2, the front end of the output shaft of the motor 6 is fixedly connected to the movable pulley 7, and the belt 8 is sleeved on the outer walls of the movable pulley 7 and the fixed pulley 2.

[0019] Working principle: Fix the fixed lower plate 3 on the top front side of the workbench 1, install the motor 6 on the top middle part of the movable upper plate 5, and rotate the connected fixed pulley 2 on the front side wall of the workbench 1.

[0020] The belt 8 is sleeved between the movable pulley 7 (driven by the motor 6 ) and the outer wall of the fixed pulley 2 .

[0021] The right ends of the front and rear side walls of the movable upper plate 5 are rotatably connected to the right ends of the inner side walls of the two side plates 4 respectively, so that the movable upper plate 5 is rotatably connected to the fixed lower plate 3.

[0022] The stud 13 passes through the two through slots 11 and the limiting column 10 on the movable upper plate 5 respectively, and the stud 13 is loosely matched with the limiting column 10 and the through slot 11 to ensure that the stud 13 can rotate freely without causing the limiting column 10 or the movable upper plate 5 to rotate.

[0023] Tighten the nuts 14 on the top and bottom of the stud 13 respectively, and the nuts 14 abut against the outer wall of the limiting column 10. By adjusting the position of the nut 14 on the stud 13, the height of the limiting column 10 and the movable upper plate 5 relative to the side plate 4 can be controlled, that is, the angle between the movable upper plate 5 and the fixed lower plate 3 can be controlled.

[0024] By adjusting the angle of the movable upper plate 5 , the tension of the belt 8 can be adjusted.

Claims

1. A belt tensioning mechanism comprising a fixed lower plate (3), characterized in that: The front and rear sides of the top of the fixed lower plate (3) are vertically fixedly connected with the side plates (4), the top of the fixed lower plate (3) is provided with a movable upper plate (5), the movable upper plate (5) is located between the two side plates (4), the front and rear side wall right ends of the movable upper plate (5) are respectively rotatably connected with the right ends of the inner side walls of the two side plates (4), the top left side of the movable upper plate (5) is provided with two through slots (11), the two through slots (11) are distributed front and back, the front and rear sides of the left end of the bottom of the movable upper plate (5) are vertically fixedly connected with the convex plate (9), the opposite side walls of the two convex plates (9) are rotatably connected with a limiting column (10), the opposite side walls of the two side plates (4) are respectively rotatably connected. A rotating rod (12) is rotatably connected between the left ends of the opposite side walls. The outer wall of the rotating rod (12) is vertically fixedly connected to one end of two studs (13). The two studs (13) respectively penetrate the two through grooves (11). The two studs (13) respectively have gaps with the two through grooves (11). The studs (13) penetrate the limiting column (10). The studs (13) and the limiting column (10) have gaps. The outer walls of the two studs (13) are both threadedly connected with two nuts (14). The nuts (14) are respectively located at the top and bottom of the limiting column (10). The upper and lower nuts (14) are respectively pressed against the upper and lower outer walls of the limiting column (10).

2. A belt tensioning mechanism according to claim 1, characterized in that: The fixed lower plate (3) is fixedly connected to the front side of the top of the workbench (1); the motor (6) is fixedly installed in the middle of the top of the movable upper plate (5); the front side wall of the workbench (1) is rotatably connected to the fixed pulley (2); the front end of the output shaft of the motor (6) is fixedly connected to the movable pulley (7); and the belt (8) is sleeved on the outer walls of the movable pulley (7) and the fixed pulley (2).

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