Tensioning wheel adjusting structure

Abstract

The utility model relates to the technical field of tensioning wheels, in particular to a tensioning wheel adjusting structure which comprises an installation frame, the installation frame is composed of a transverse frame and a vertical frame fixedly connected with the middle of the transverse frame, L-shaped frames are symmetrically arranged at the two ends of the transverse frame, and the turning positions of the middles of the L-shaped frames are rotationally connected with protruding shafts fixed to the ends of the transverse frame. Side tensioning wheels are rotationally installed at the ends, away from each other, of the two L-shaped frames, meanwhile, a middle tensioning wheel is rotationally installed on a sliding block arranged on the vertical frame in a sliding mode, and the ends, close to each other, of the two L-shaped frames are connected with the sliding block, so that linkage between the sliding block and the two L-shaped frames is achieved, and rapid assembly and separation of the sliding block, the two L-shaped frames and a transmission belt are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of tension wheels, in particular to a tension wheel adjusting structure. Background Art

[0002] The tensioner is a common mechanical component, widely used in various mechanical equipment. It is mainly used to adjust and maintain the tension of the transmission system by changing the position and angle of the tensioner to apply appropriate tension to the transmission belt or chain.

[0003] In order to achieve anti-slip tensioning of the transmission belt, three sets of tension wheels are usually used in coordination. The set of tension wheels located in the middle and the two sets of tension wheels located on both sides are at different heights and are respectively located in contact with the inner and outer walls of the transmission belt to press the transmission belt into a U shape.

[0004] In the tensioning device of the above three sets of tensioning wheels, the adjustment structures of the tensioning wheel positions in the middle and on both sides are independent of each other, and the linkage effect is poor. Therefore, this solution provides a tensioning wheel adjustment structure that can realize the linkage adjustment of the three sets of tensioning wheels. Utility Model Content

[0005] The utility model aims at least to solve the problem in the prior art that the adjustment of three-wheel tensioning cannot be controlled in linkage.

[0006] This solution provides a tension wheel adjustment structure, which is achieved by the following specific technical means: comprising a mounting frame, the mounting frame consisting of a horizontal frame and a vertical frame fixedly connected to the middle of the horizontal frame;

[0007] There are L-shaped frames symmetrically arranged at both ends of the horizontal frame, and the middle turning point of the L-shaped frame is rotatably connected to the convex shaft fixed to the end of the horizontal frame. The ends of the two groups of L-shaped frames that are far away from each other are rotatably installed with side tensioning wheels, and at the same time, a middle tensioning wheel is rotatably installed on a slider slidably arranged on the vertical frame, and the ends of the two groups of L-shaped frames that are close to each other are connected to the slider, so as to realize the linkage between the slider and the two groups of L-shaped frames.

[0008] Preferred technical solution 1: A vertical slot for the sliding block to slide is provided on the vertical frame, and a tension spring is connected between the end wall of the vertical slot and the sliding block.

[0009] Preferred technical solution 2: The mutually adjacent ends of the L-shaped frame are provided with slide grooves, and the upright column fixed on the slide block passes through the front and rear overlapping parts of the two sets of slide grooves.

[0010] Preferred technical solution three: A tensioning force adjusting component is provided on the vertical frame, and the tensioning force adjusting component is used for adjusting the initial compression amount of the tensioning spring.

[0011] Preferred Technical Solution 4: The tension adjustment assembly includes a threaded rod rotatably installed in the sliding groove. At the same time, a movable block slides in the sliding groove. The movable block is sleeved on the threaded rod through a threaded hole. Both ends of the tension spring are connected to the slider and the movable block respectively.

[0012] Preferred Technical Solution 5: The slider is provided with a hole for the threaded rod to pass through, and the size of the hole is larger than the diameter of the threaded rod.

[0013] Adopting the above structure makes this solution have the following beneficial effects:

[0014] 1. By using two groups of L-shaped frames, in cooperation with the slider and the upright column, synchronous reverse linkage control between the middle tension pulley and the two groups of side tension pulleys is realized, so as to achieve the rapid assembly and separation of the three with the transmission belt;

[0015] 2. By setting the tension adjustment assembly, the initial compression amount of the tension spring can be adjusted. Description of the Drawings

[0016] The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention. In the drawings:

[0017] Figure 1 is the overall structural schematic diagram of this solution;

[0018] Figure 2 is the rear view of this solution;

[0019] Figure 3 is the structural schematic diagram of the L-shaped frame of this solution;

[0020] Figure 4 is the structural schematic diagram of the mounting frame of this solution;

[0021] Figure 5 is the sectional view of the mounting frame of this solution;

[0022] Figure 6 is the structural schematic diagram of the vertical frame of this solution.

[0023] Among them, 1. Mounting frame, 11. Cross frame, 12. Convex shaft, 13. Vertical frame, 14. Vertical groove, 2. L-shaped frame, 21. Sliding groove, 3. Side tension pulley, 4. Slider, 41. Upright column, 42. Hole, 5. Middle tension pulley, 6. Tension spring, 7. Tension adjustment assembly, 71. Threaded rod, 72. Movable block. Detailed Embodiment

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts belong to the scope of protection of the present utility model.

[0025] Please refer to Figures 1 - 3 , the tensioning wheel adjusting structure includes a mounting frame 1. The mounting frame 1 is composed of a cross frame 11 and a vertical frame 13 fixedly connected to the middle of the cross frame 11. At both ends of the cross frame 11, there are symmetric L-shaped frames 2. The middle turning point of the L-shaped frame 2 is rotatably connected to a convex shaft 12 fixed at the end of the cross frame 11. At the mutually remote ends of the two groups of L-shaped frames 2, side tensioning wheels 3 are rotatably installed. At the same time, a middle tensioning wheel 5 is rotatably installed on a slider 4 slidably arranged on the vertical frame 13. The middle tensioning wheel 5 and the side tensioning wheels 3 are H-shaped wheels. The mutually close ends of the two groups of L-shaped frames 2 are all connected to the slider 4, realizing the linkage between the slider 4 and the two groups of L-shaped frames 2;

[0026] The mounting frame 1 is provided with mounting holes for bolts to pass through. During use, the mounting frame 1 is fixed to the equipment by bolts. Pull the middle tensioning wheel 5 away from the top of the cross frame 11 close to the vertical frame 13. At this time, the two groups of side tensioning wheels 3 are in a state of being away from the top of the vertical frame 13, that is, at this time, the middle tensioning wheel 5 is located above the two groups of side tensioning wheels 3. At this time, the transmission belt passes between the middle tensioning wheel 5 and the two groups of side tensioning wheels 3. When adjusting the tension of the transmission belt, control the slider 4 to drive the middle tensioning wheel 5 to move downward and approach the middle of the cross frame 11. At this time, under the linkage state, the two groups of side tensioning wheels 3 swing upward to above the middle tensioning wheel 5, completing the anti-slip tensioning of the transmission belt. The vertical frame 13 is provided with a vertical groove 14 for the slider 4 to slide. At the same time, a tension spring 6 is connected between the end wall of the vertical groove 14 and the slider 4. When the transmission system operates for a period of time, the transmission belt may become loose due to wear or elongation. At this time, the tension spring 6 will automatically adjust the position of the tensioning wheel to increase the tension to maintain an appropriate tension state. This automatic adjustment function can improve the stability and reliability of the transmission system.

[0027] Please refer to Figure 1 and Figure 3 , the tensioning wheel adjusting structure. The mutually close ends of the L-shaped frames 2 are all provided with sliding grooves 21. The two groups of L-shaped frames 2 are in a symmetrically stacked state. A column 41 fixed on the slider 4 passes through the overlapping part of the two sliding grooves 21 before and after. When the slider 4 moves, it drives the column 41 to slide synchronously in the two sliding grooves 21, thereby controlling the swinging postures of the two groups of L-shaped frames 2. The wheel shaft on the middle tensioning wheel 5 is rotatably connected to the column 41.

[0028] Please refer to Figures 4 - 6, the tension pulley adjusting structure, a tension force adjusting component 7 is arranged on the vertical frame 13. The tension force adjusting component 7 is used for adjusting the initial compression amount of the tension spring 6. The tension force adjusting component 7 includes a threaded rod 71 rotatably installed in the sliding groove 21. At the same time, a movable block 72 slides in the sliding groove 21. The movable block 72 is sleeved on the threaded rod 71 through a threaded hole. The two ends of the tension spring 6 are respectively connected to the slider 4 and the movable block 72. By rotating the threaded rod 71, the position of the movable block 72 in the sliding groove 21 can be adjusted, so as to control the initial compression amount of the tension spring 6. A hole 42 for the threaded rod 71 to pass through is formed in the slider 4. The size of the hole 42 is larger than the diameter of the threaded rod 71. The tension spring 6 surrounds the outside of the threaded rod 71, and the outer end of the threaded rod 71 extends out of the vertical frame 13 for convenient screwing.

[0029] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tension pulley adjusting structure, including a mounting frame (1), characterized in that: The mounting frame (1) is composed of a horizontal frame (11) and a vertical frame (13) fixedly connected to the middle of the horizontal frame (11); At both ends of the horizontal frame (11), there are symmetrically arranged L-shaped frames (2). The middle turning point of the L-shaped frame (2) is rotatably connected to a convex shaft (12) fixed at the end of the horizontal frame (11). At the mutually remote ends of the two groups of L-shaped frames (2), side tension pulleys (3) are rotatably installed. At the same time, a middle tension pulley (5) is rotatably installed on a slider (4) slidably arranged on the vertical frame (13). The mutually close ends of the two groups of L-shaped frames (2) are both connected to the slider (4).

2. The tension pulley adjusting structure according to claim 1, wherein: A vertical groove (14) for the slider (4) to slide is formed on the vertical frame (13). At the same time, a tension spring (6) is connected between the end wall of the vertical groove (14) and the slider (4).

3. A tension pulley adjusting structure according to claim 1 or 2, characterized in that: Chute grooves (21) are formed at the mutually close ends of the L-shaped frames (2). The two groups of L-shaped frames (2) are in a symmetrically stacked state. A column (41) fixed on the slider (4) passes through the overlapping part of the two chute grooves (21) before and after.

4. The tension pulley adjusting structure according to claim 2, characterized in that: A tension force adjusting component (7) is arranged on the vertical frame (13). The tension force adjusting component (7) is used for the initial compression amount of the tension spring (6).

5. The tension pulley adjusting structure according to claim 4, wherein: The tension force adjusting component (7) includes a threaded rod (71) rotatably installed in the chute groove (21). At the same time, a movable block (72) slides in the chute groove (21). The movable block (72) is sleeved on the threaded rod (71) through a threaded hole. The two ends of the tension spring (6) are respectively connected to the slider (4) and the movable block (72).

6. The tension pulley adjusting structure according to claim 5, characterized in that: A hole (42) for the threaded rod (71) to pass through is formed on the slider (4). The size of the hole (42) is larger than the diameter of the threaded rod (71).

7. The tension pulley adjusting structure according to claim 5, characterized in that: The tension spring (6) is wound around the outside of the threaded rod (71).

8. A tension pulley adjusting structure according to claim 1, characterized in that: The middle tension pulley (5) and the side tension pulley (3) are H-shaped wheels.

Images