Belt tensioning mechanism of transmission equipment

Abstract

The utility model discloses a belt tensioning mechanism of transmission equipment, which relates to the technical field of belt transmission equipment and comprises a conveying belt and a driven wheel. The mounting seat is connected with the driven wheel through an adjustable shaft assembly; the adjustable shaft assembly comprises a sliding block and a mounting shaft; the mounting shaft is connected with a driving shaft of the driven wheel, and the sliding block is movably arranged in the mounting seat; and the driving part is installed on the installation base, the sliding block is connected to the driving part in a threaded and sleeving mode, and when the driving part rotates, the sliding block linearly moves in the installation base, so that the purpose of adjusting the tightness of the conveying belt is achieved. The tensioning mechanism is integrated on the mounting base, extra occupied space of a traditional tensioning wheel or a complex adjusting device is omitted, and the tensioning mechanism is particularly suitable for compact equipment with limited space.

Description

Technical Field

[0001] This utility model relates to the field of belt drive equipment technology, and more specifically, it relates to a belt tensioning mechanism for a transmission equipment. Background Technology

[0002] Belt drives, as a highly efficient and low-noise mechanical transmission method, are widely used in industry, agriculture, and automation equipment. Belts are typically made of rubber or composite materials, with reinforcing fibers embedded inside to improve tensile strength. However, during long-term operation, the belt gradually stretches and loosens under tension, leading to decreased transmission efficiency, slippage, and even accelerated wear, seriously affecting the operational stability and service life of the equipment.

[0003] There are many traditional belt tensioning methods: one is to set a tensioning wheel in the belt attachment to squeeze or pull the belt inward to increase the belt path and eliminate the belt stretching part; another is to set a screw tensioning mechanism in the attachment of the driven wheel or driven wheel to push or pull the driven wheel outward, thereby increasing the belt running path and eliminating the belt stretching part.

[0004] Many of the aforementioned tensioning mechanisms require a separate mechanism or component installed near the drive belt before operation to achieve tension. However, in many applications, operating space is limited. Installing additional mechanisms or components makes the space very cramped, potentially preventing proper tensioning or wasting too much time, thus impacting efficient production. To avoid these drawbacks, this invention enables rapid belt tensioning and slack adjustment within a limited space, achieving efficient and precise tension adjustment and significantly improving equipment maintainability and operational efficiency. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a belt tensioning mechanism for transmission equipment.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A belt tensioning mechanism for belt-driven equipment includes a transmission belt and a driven pulley;

[0008] The mounting base is connected to the driven wheel via an adjustable shaft assembly;

[0009] An adjustable shaft assembly includes a slider and a mounting shaft; the mounting shaft is connected to the drive shaft of a driven wheel, and the slider is movably housed within a mounting base;

[0010] A driving component is mounted on a mounting base, and the slider is threadedly sleeved on the driving component. When the driving component rotates, it causes the slider to move linearly within the mounting base.

[0011] Preferably, the mounting base includes a vertical plate, which has a receiving cavity for accommodating the slider and a tensioning through hole for passing through the driving member; the receiving cavity is connected to the tensioning through hole.

[0012] Preferably, the conveyor belt is arranged in a tensioned state around the driven pulley and the driving pulley, and the driving pulley is connected to a drive motor.

[0013] Preferably, a limiting block is connected between the slider and the mounting shaft, and a fixing member is installed on the slider on the side away from the limiting block; the slider is provided with a tension threaded hole for the drive member to pass through.

[0014] Preferably, the fixing component includes a screw connected to the slider and a clamping nut cooperating with the screw, and the axial locking or releasing of the adjustable shaft assembly is achieved by adjusting the clamping nut.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. This utility model integrates the tensioning mechanism into the mounting base, eliminating the extra space occupied by traditional tensioning wheels or complex adjustment devices, and is particularly suitable for compact equipment with limited space.

[0017] 2. This utility model has a simple structure, a high degree of standardization of parts, low manufacturing cost, and only requires conventional tools (such as wrenches and screwdrivers) for maintenance, making it easy to operate.

[0018] 3. This utility model adopts a threaded connection between the drive component and the slider. Only by rotating the drive component and then tightening it with a clamping nut can the precise movement of the driven wheel be achieved without disassembling the belt or other components, which significantly shortens maintenance time and improves production efficiency.

[0019] 4. This utility model can quickly and accurately adjust the tension of the conveyor belt in a limited space, significantly improving the convenience of equipment maintenance and operating efficiency. It has a compact structure and high efficiency in adjustment. Attached Figure Description

[0020] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0021] Figure 2 This is a schematic diagram of the mounting base in this utility model;

[0022] Figure 3 This is a schematic diagram of the adjustable shaft assembly in this utility model;

[0023] Figure 4This is a schematic diagram of the clamping nut in this utility model;

[0024] Figure 5 This is a schematic diagram of the driving component in this utility model.

[0025] 1. Mounting base; 11. Vertical plate; 12. Receiving cavity; 13. Tensioning through hole; 2. Conveyor belt; 3. Driven wheel; 4. Adjustable shaft assembly; 41. Screw; 42. Slider; 43. Tensioning threaded hole; 44. Limit block; 45. Mounting shaft; 5. Pressure nut; 6. Drive component; 7. Drive motor. Detailed Implementation

[0026] The embodiments further illustrate the belt tensioning mechanism of the transmission equipment proposed in this utility model.

[0027] Reference Figures 1 to 5 A belt tensioning mechanism for a transmission device includes a transmission belt 2 and a driven pulley 3;

[0028] Mounting base 1 is connected to driven wheel 3 via adjustable shaft assembly 4;

[0029] The adjustable shaft assembly 4 includes a slider 42 and a mounting shaft 45; the mounting shaft 45 is connected to the drive shaft of the driven wheel 3, and the slider 42 is movably built into the mounting base 1.

[0030] The driving component 6 is mounted on the mounting base 1, and the slider 42 is threaded onto the driving component 6. When the driving component 6 rotates, the slider 42 moves linearly within the mounting base 1.

[0031] The mounting base 1 includes a vertically arranged upright plate 11, on which a receiving cavity 12 for accommodating the slider 42 and a tensioning through hole 13 for passing through the driving member 6 are provided; the receiving cavity 12 is rectangular in shape and is connected to the tensioning through hole 13.

[0032] The conveyor belt 2 is arranged in a taut state around the driven wheel 3 and the driving wheel; the driving wheel is connected to a drive motor 7.

[0033] The driven wheel 3 is a standard part and is installed on the mounting shaft 45 of the adjustable shaft assembly 4.

[0034] The adjustable shaft assembly 4 includes a screw 41, a slider 42, a limiting block 44, and a mounting shaft 45; the limiting block 44 connects the slider 42 and the mounting shaft 45, and a fixing member is installed on the slider 42 on the side away from the limiting block 44; the slider 42 has a tension threaded hole 43 for the drive member 6 to pass through; the fixing member includes a screw 41 connected to the slider 42 and a clamping nut 5 that cooperates with the screw 41.

[0035] The slider 42 is rectangular in shape and can move along the axial direction of the drive member 6 within the receiving cavity 12, and is movably placed within the receiving cavity 12 of the mounting base 1; the slider 42 is attached to the upright plate 11 of the mounting base 1 by the limiting block 44, which restricts the rotational degree of freedom of the slider 42 and retains only the axial movement degree of freedom.

[0036] The clamping nut 5 is a standard part and is assembled on the threaded end of the screw 41. The axial locking or releasing of the adjustable shaft assembly 4 can be achieved by adjusting the clamping nut 5. The contact surface between the clamping nut 5 and the mounting base 1 generates frictional resistance to ensure stable tension.

[0037] The front end of the drive element 6 passes sequentially through the tensioning through hole 13 on the vertical plate 11 and the tensioning threaded hole 43 of the slider 42, and is then fixedly connected to the vertical plate 11 via a bearing. When the drive element 6 is rotated, the drive element 6 rotates in the bearing, while its axial direction is fixed. The slider 42 is threadedly connected to the drive element 6, thereby driving the slider 42 to move linearly along the drive element 6. The drive element 6 can be a threaded rod.

[0038] When the drive unit 6 rotates clockwise, it pushes the slider 42 to move away from the drive motor 7, thus tightening the conveyor belt 2. When it rotates counterclockwise, it pushes the slider 42 to move towards the drive motor 7, thus loosening the conveyor belt 2.

[0039] The working principle of the belt tensioning mechanism used in belt drive equipment is as follows:

[0040] During installation, firstly, the slider 42 of the adjustable shaft assembly 4 is inserted into the receiving cavity 12 of the mounting base 1, so that the limiting block 44 is placed against the vertical plate 11. Then, the driven wheel 3 is installed on the mounting shaft 45, and the conveyor belt 2 is arranged around the driven wheel 3 and the driving wheel. The clamping nut 5 is installed on the threaded end of the screw 41 to fix the position of the adjustable shaft assembly 4. The driving component 6 passes through the tensioning through hole 13 on the vertical plate 11 and the tensioning threaded hole 43 of the slider 42 in sequence, and is then fixedly connected to the vertical plate 11 through a bearing. Specifically, the driving component 6 is fixedly connected to the inner ring of the bearing, the outer ring of the bearing is fixedly connected to the vertical plate 11, and the driving component 6 is threadedly connected to the slider 42, thus forming a lead screw pair. When the driving component 6 rotates clockwise or counterclockwise, it drives the slider 42 to move linearly within the mounting base 1 to change its position, and then it is fixed with the clamping nut 5, thereby adjusting the distance between the driven wheel 3 and the driving wheel, thus achieving the tensioning or relaxation of the conveyor belt 2.

[0041] In use, first loosen the clamping nut 5, then rotate the drive component 6. Specifically, when the drive component 6 rotates clockwise, its axial position is fixed because its head is fixedly connected to the mounting base 1 via a bearing; the reaction force of the lead screw pushes the slider 42 to move away from the drive motor 7; the slider 42 drives the driven wheel 3 on the mounting shaft 45 away from the driving wheel, thus tensioning the conveyor belt 2. Similarly, when the drive component 6 rotates counterclockwise, the slider 42 moves towards the drive motor 7, causing the driven wheel 3 to move closer to the driving wheel, thus loosening the conveyor belt 2. After adjusting to the target tension, tighten the clamping nut 5 to fix the screw 41 and slider 42 to the mounting base 1 to prevent backflow.

[0042] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A belt tensioning mechanism for a power transmission apparatus, characterized by, The transmission belt (2) and the driven wheel (3); The mounting base (1) is connected with the driven wheel (3) through an adjustable shaft assembly (4); The adjustable shaft assembly (4) comprises a sliding block (42) and a mounting shaft (45); the mounting shaft (45) is connected with a driving shaft of the driven wheel (3), and the sliding block (42) is movably arranged in the mounting base (1); The driving member (6) is arranged on the mounting base (1), the sliding block (42) is threadedly sleeved on the driving member (6), and the driving member (6) is rotated to drive the sliding block (42) to move linearly in the mounting base (1).

2. A belt tensioner for a power transmission device as set forth in claim 1, wherein The mounting base (1) comprises a vertical plate (11), the vertical plate (11) is provided with an accommodating cavity (12) for accommodating the sliding block (42) and a tension through hole (13) for penetrating the driving member (6); and the accommodating cavity (12) is communicated with the tension through hole (13).

3. A belt tensioner for a power transmission device as set forth in claim 1, wherein The transmission belt (2) is arranged in a tensioned state between the driven wheel (3) and a driving wheel, and the driving wheel is connected with a driving motor (7).

4. A belt tensioner for a power transmission device as set forth in claim 1, wherein A limiting block (44) is arranged between the sliding block (42) and the mounting shaft (45), a fixing member is arranged on the sliding block (42) away from the limiting block (44), and a tension thread hole (43) is formed in the sliding block (42) for penetrating the driving member (6).

5. A belt tensioner for a power transmission device as set forth in claim 4 wherein, The fixing member comprises a screw rod (41) connected with the sliding block (42) and a pressing nut (5) matched with the screw rod (41), and the axial locking or releasing of the adjustable shaft assembly (4) is realized by adjusting the pressing nut (5).

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