A belt tensioning device

Abstract

This utility model provides a belt tensioning device, including a track and tensioning components. The track includes a first track and a second track symmetrically arranged. A belt trolley is slidably connected to the first and second tracks via pulleys. The tensioning components are arranged in pairs at the same end of the first and second tracks. Each tensioning component includes a spring, a connecting plate, and a bolt. The connecting plate is rotatably connected to the outside of the track. One end of the spring is connected to the connecting plate, and the other end is connected to the belt trolley. Adjusting plates are also provided at the ends of the first and second tracks. The adjusting plates have threaded holes adapted to the bolts, and the bolt ends pass through the threaded holes and abut against the connecting plate. This belt tensioning device changes the spring force by adjusting the bolts to rotate the connecting plate, thereby changing the belt tension. The device has a small overall footprint, low cost, and is suitable for widespread use.

Description

Technical Field

[0001] This utility model relates to the field of belt tensioning technology, and in particular to a belt tensioning device. Background Technology

[0002] The belt tensioning device is an important component of belt conveyors. Its main function is to ensure that the belt conveyor drive drum has sufficient tension at the point of departure, so as to ensure the necessary frictional traction force for the drive unit to drive the belt conveyor to operate normally.

[0003] Traditional belt tensioning devices mainly rely on the combination of steel wire rope and counterweight. By adjusting the weight of the counterweight, the downward pressure on the belt is changed, thereby adjusting the belt tension. However, the greater the tension, the larger the volume of the counterweight, which in turn leads to a larger space occupied by the counterweight.

[0004] Therefore, it is necessary to propose a belt tensioning device to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a belt tensioning device to solve the problem mentioned in the background art that the greater the tension, the larger the volume of the counterweight, which in turn leads to a larger space occupied by the counterweight.

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

[0007] A belt tensioning device, comprising:

[0008] The track includes a first track and a second track that are symmetrically arranged.

[0009] The belt-driven trolley is slidably connected to the first and second tracks via pulleys;

[0010] Tensioning components are installed in pairs at the same end of the first and second tracks;

[0011] The tensioning assembly includes a spring, a connecting plate, and a bolt. The connecting plate is rotatably connected to the outside of the track. One end of the spring is connected to the connecting plate, and the other end is connected to the belt trolley.

[0012] The ends of the first and second tracks are also provided with adjustment plates, and the adjustment plates are provided with threaded holes that are adapted to the bolts. The ends of the bolts pass through the threaded holes and abut against the connecting plates.

[0013] Preferably, the connecting plate is a Z-shaped plate, and the ends of the spring and the bolt are respectively connected to the Z-shaped head and Z-shaped tail of the Z-shaped plate, wherein the Z-shaped head and Z-shaped tail are both arc-shaped.

[0014] Preferably, a fixed seat is provided on the outer side of the track, and a rotating shaft is provided on the fixed seat, with the connecting plate rotatably connected to the rotating shaft.

[0015] Preferably, the top and bottom of the adjusting plate are further provided with a first reinforcing plate, and the adjacent sides of the first reinforcing plate are respectively connected to the side of the track and the adjusting plate.

[0016] Preferably, the side of the first reinforcing plate opposite to the adjusting plate is a bevel.

[0017] Preferably, one end of the first track and the second track are connected by a baffle.

[0018] Preferably, the belt trolley is provided with fixing plates on both sides of the first and second tracks, and the spring is fixedly connected to the fixing plates.

[0019] Preferably, the top and bottom of the fixing plate are further provided with a second reinforcing plate, and the adjacent sides of the second reinforcing plate are respectively connected to the side of the belt trolley and the fixing plate.

[0020] Compared with the prior art, the advantages of this utility model are as follows: the connecting plate is rotatably connected to the end side of the track, and a spring is used to connect the connecting plate and the belt trolley. Rotating the bolt pushes the bolt onto the adjusting plate, thereby causing the end of the bolt to push the connecting plate to rotate, thus stretching the spring to increase the belt tension. Rotating the bolt also causes the bolt to retract out of the adjusting plate, thereby causing the belt to naturally retract and the connecting plate to rotate, thus resetting the spring to reduce the belt tension. This belt tensioning device changes the spring force by adjusting the bolt to rotate the connecting plate, thereby changing the belt tension. It has a low cost and is suitable for widespread use. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0023] Figure 2 This is a schematic diagram of the tensioning assembly according to an embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram illustrating a usage scenario of an embodiment of the present utility model.

[0025] Figure label:

[0026] 10. Track; 101. Baffle; 20. Belt trolley; 201. Pulley; 30. Tensioning assembly; 301. Spring; 302. Connecting plate; 303. Bolt; 40. Adjusting plate; 401. Threaded hole; 50. Fixing seat; 60. First reinforcing plate; 70. Fixing plate; 80. Second reinforcing plate; 90. Belt. Detailed Implementation

[0027] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0028] In the description of this utility model, it should be understood that the terms "upper", "lower", "top", "bottom", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0030] In this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] The following disclosure provides many different embodiments or examples for implementing various structures of this invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0032] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0033] like Figures 1-2 As shown, this utility model embodiment provides a belt tensioning device, including a track 10 and a tensioning assembly 30. The track 10 includes a first track and a second track symmetrically arranged. A belt trolley 20 is slidably connected to the first track and the second track via a pulley 201. The tensioning assemblies 30 are arranged in pairs at the same end of the first track and the second track. The tensioning assembly 30 includes a spring 301, a connecting plate 302, and a bolt 303. The connecting plate 302 is rotatably connected to the outside of the track 10. One end of the spring 301 is connected to the connecting plate 302, and the other end is connected to the belt trolley 20. An adjusting plate 40 is also provided at the end of the first track and the second track. The adjusting plate 40 has a threaded hole 401 adapted to the bolt 303. The end of the bolt 303 passes through the threaded hole 401 and abuts against the connecting plate 302.

[0034] In use, the belt trolley 20 serves as the end, with the belt 90 wound around its surface. When the rotating bolt 303 pushes the bolt 303 onto the adjusting plate 40, the end of the bolt 303 pushes the connecting plate 302 to rotate, thereby stretching the spring 301 to increase the tension of the belt 90. When the rotating bolt 303 pulls the bolt out of the adjusting plate 40, the belt 90 naturally retracts, causing the connecting plate 302 to rotate, thereby resetting the spring 301 to reduce the tension of the belt 90.

[0035] This belt tensioning device determines the tension of the belt 90 by the elasticity of the spring 301. The device has a small overall footprint and low cost, making it suitable for widespread use. It should be noted that in actual use, the appropriate spring 301 with suitable elasticity can be selected according to the working conditions.

[0036] Specifically, the connecting plate 302 is a Z-shaped plate, the spring 301 is fixed to the upper side of the Z-shaped head of the Z-shaped plate, and the end of the bolt 303 abuts against the Z-shaped tail of the Z-shaped plate. Both the Z-shaped head and the Z-shaped tail are arc-shaped. It should be noted that when the spring 301 is in the reset state, the Z-shaped plate is tilted towards the spring 301, and the bolt 303 abuts against the outermost part of the Z-shaped tail.

[0037] During use, the contact position between the end of bolt 303 and the Z-shaped tail changes with the rotation of connecting plate 302. Thus, when spring 301 is stretched to increase the tension of belt 90, the end of bolt 303 engages with connecting plate 302, thereby preventing connecting plate 302 from rotating and changing the state of spring.

[0038] Furthermore, a fixed seat 50 is provided on the outer side of the track 10, and a rotating shaft is provided on the fixed seat 50. The connecting plate 302 is rotatably connected to the rotating shaft, thereby ensuring the flexible rotation of the connecting plate 302.

[0039] To ensure the stability of the adjusting plate 40, a first reinforcing plate 60 is provided at the top and bottom of the adjusting plate 40. The adjacent sides of the first reinforcing plate 60 are connected to the side of the track 10 and the adjusting plate 40, respectively.

[0040] Specifically, the side of the first reinforcing plate 60 opposite to the adjusting plate 40 is a slanted side. More specifically, the first reinforcing plate 60 may be, but is not limited to, a trapezoid, thereby further improving the stability of the adjusting plate 40.

[0041] Since the belt trolley 20 is connected by rolling on the first and second tracks, in order to ensure the structural stability of the device, one end of the first and second tracks is connected by a baffle 70.

[0042] Furthermore, the belt trolley 20 is provided with fixing plates 70 on both sides of the first and second tracks, and the spring 301 is fixedly connected to the fixing plates 70 to prevent the spring 301 from affecting the conveying of the belt 90.

[0043] For the same purpose as using the first reinforcing plate 60, the top and bottom of the fixing plate 70 are also provided with a second reinforcing plate 80, the adjacent sides of which are connected to the side of the belt trolley 20 and the fixing plate 70, respectively. Specifically, the second reinforcing plate 80 may be, but is not limited to, trapezoidal, thereby further improving the stability of the fixing plate 70.

[0044] Figure 3 One application scenario for this belt tensioning device is that the belt tensioning devices are positioned opposite each other, with the belt 90 wound around the belt carriages 20 at both ends. In addition, this belt tensioning device can also be used in conjunction with rollers to achieve the same purpose of adjusting the tension of the belt 90.

[0045] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A belt tensioning device, characterized in that, include: Track (10), including a first track and a second track arranged symmetrically; The belt-driven trolley (20) is slidably connected to the first and second tracks via pulleys (201); Tensioning components (30) are arranged in pairs at the same end of the first and second tracks; The tensioning assembly (30) includes a spring (301), a connecting plate (302), and a bolt (303). The connecting plate (302) is rotatably connected to the outside of the track (10). One end of the spring (301) is connected to the connecting plate (302), and the other end is connected to the belt trolley (20). The ends of the first track and the second track are also provided with adjustment plates (40), and the adjustment plates (40) are provided with threaded holes (401) that are adapted to the bolts (303). The end of the bolts (303) passes through the threaded holes (401) and abuts against the connecting plate (302).

2. The belt tensioning device according to claim 1, characterized in that: The connecting plate (302) is a Z-shaped plate, and the ends of the spring (301) and the bolt (303) are respectively connected to the Z-head and Z-tail of the Z-shaped plate. The Z-head and Z-tail are both arc-shaped.

3. The belt tensioning device according to claim 1, characterized in that: The track (10) is provided with a fixed seat (50) on the outside, and a rotating shaft is provided on the fixed seat (50). The connecting plate (302) is rotatably connected to the rotating shaft.

4. The belt tensioning device according to claim 1, characterized in that: The top and bottom of the adjusting plate (40) are also provided with a first reinforcing plate (60), and the adjacent sides of the first reinforcing plate (60) are respectively connected to the side of the track (10) and the adjusting plate (40).

5. The belt tensioning device according to claim 4, characterized in that: The side of the first reinforcing plate (60) opposite to the adjusting plate (40) is a bevel.

6. The belt tensioning device according to claim 1, characterized in that: One end of the first track and the second track are connected by a baffle (101).

7. The belt tensioning device according to claim 1, characterized in that: The belt trolley (20) is provided with fixed plates (70) on both sides of the first track and the second track, and the spring (301) is fixedly connected to the fixed plates (70).

8. The belt tensioning device according to claim 7, characterized in that: The top and bottom of the fixing plate (70) are also provided with a second reinforcing plate (80), and the adjacent sides of the second reinforcing plate (80) are respectively connected to the side of the belt trolley (20) and the fixing plate (70).

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