Chain tensioning device

Abstract

A chain tensioning device comprises an installation base, a movable base, a chain wheel and a driving device. The moving seat is movably mounted on the mounting seat, the chain wheel is rotatably mounted on the moving seat and used for mounting a chain, and the driving device is used for adaptively adjusting the position of the moving seat; the mounting base comprises connecting frames and mounting frames, the two mounting frames are oppositely arranged, the two connecting frames are oppositely arranged, the left ends and the right ends of the two connecting frames are installed on the inner sides of the two mounting frames respectively, and the two sides of the moving base are movably installed on the inner sides of the two connecting frames respectively. The utility model provides the chain tensioning device according to the content, and solves the problems that the chain tensioning device in the prior art is generally manually and actively adjusted, the adjusting efficiency is low, and the moving seat provided with a chain and a chain wheel is easy to fall off from the mounting seat in the adjusting process.

Description

Technical Field

[0001] The utility model relates to the technical field of chain tensioning, in particular to a chain tensioning device. Background Art

[0002] During long-term use, the chain will become loose due to wear, thermal expansion and contraction, etc. The loose chain will produce noise and vibration during the transmission process, and may even cause the chain to fall off, affecting the normal operation of the equipment. Therefore, people usually install a chain tensioning device to facilitate the adjustment of the chain tension.

[0003] However, the chain tensioning device in the prior art is usually manually adjusted actively, which not only has low adjustment efficiency, but also the movable seat on which the chain sprocket is installed is easy to fall out of the mounting seat during the adjustment process. Utility Model Content

[0004] The utility model aims to provide a chain tensioning device, which solves the problem that the chain tensioning device in the prior art is usually manually adjusted, which not only has low adjustment efficiency, but also the movable seat with the chain sprocket installed is easy to fall off from the mounting seat during the adjustment process.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] A chain tensioning device comprises a mounting seat, a moving seat, a sprocket and a driving device;

[0007] The movable seat can be movably mounted on the mounting seat, the sprocket can be rotatably mounted on the movable seat, the sprocket is used to install a chain, and the driving device is used to adaptively adjust the position of the movable seat;

[0008] The mounting seat includes a connecting frame and a mounting frame, the two mounting frames are arranged opposite to each other, the left and right ends of the two connecting frames are respectively installed on the inner sides of the two mounting frames, and the two sides of the movable seat are respectively movably installed on the inner sides of the two connecting frames.

[0009] Further, it also includes a guide rail and a first roller;

[0010] A first groove is provided on the inner side of the connecting frame, the guide rail is installed in the first groove, the first roller is rotatably installed on the moving seat, the first roller abuts against the top surface or the bottom surface of the guide rail, and the first roller can roll along the length direction of the guide rail.

[0011] Specifically, it also includes a second roller, which is rotatably mounted on the moving seat and abuts against a side surface of the guide rail.

[0012] Preferably, the mounting frame is provided with an adjusting slot, the connecting frame is mounted on the mounting frame through the adjusting slot, and the connecting frame can move up and down along the length direction of the adjusting slot.

[0013] In some embodiments, the mounting frame is provided with reinforcing ribs, and the cross-section of the reinforcing ribs is a triangular structure.

[0014] Furthermore, a second groove is provided on the outer side of the connecting frame, and a plurality of mounting holes are provided on the inner bottom surface of the second groove, and the plurality of mounting holes are arranged along the length direction of the connecting frame.

[0015] Specifically, the driving device is installed on the outside of the mounting seat, the output end of the driving device passes through the mounting seat, and the output end of the driving device is connected to one end of the moving seat;

[0016] It also includes a guide rod, one end of which is connected to the other end of the movable seat, the other end of which passes through the mounting plate, and the other end of which is used for being movably mounted on the production line frame.

[0017] Preferably, the sprocket is provided with a plurality of weight-reducing holes, and the plurality of weight-reducing holes are evenly arranged along the circumferential direction of the sprocket.

[0018] Compared with the prior art, one of the above technical solutions has the following beneficial effects:

[0019] 1. Through the mounting seat, the moving seat, the sprocket and the driving device, the moving seat can adaptively move left and right according to the state of the chain turning, loosening and tightening during the working process, so as to adjust the tension of the chain by adjusting the position of the sprocket, which is convenient and quick, ensuring that the chain always maintains a suitable tension state during the operation, so as to achieve the effect of improving the working stability and working reliability of the chain;

[0020] 2. The two mounting frames are arranged opposite to each other, and the two connecting frames are arranged opposite to each other. The left and right ends of the two connecting frames are respectively installed on the inner sides of the front and rear ends of the two mounting frames, thereby forming a U-shaped structure, and the front and rear sides of the movable seat are moved and installed on the inner sides of the two connecting frames, that is, the movable seat is built-in, which can not only improve the space utilization rate of the mounting seat, but also prevent the movable seat from falling out, so that the chain tensioning device has better integrity. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of a chain tensioning device in one embodiment of the utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the first groove and the second groove of one embodiment of the utility model;

[0023] Figure 3This is a schematic structural diagram of a mobile seat in one embodiment of the utility model;

[0024] Among them: mounting seat 1, connecting frame 11, first groove 111, second groove 112, mounting hole 113, mounting frame 12, adjustment groove 121, reinforcing rib 122, moving seat 2, sprocket 3, weight reduction hole 31, driving device 4, guide rail 5, first roller 6, second roller 7, guide rod 8. DETAILED DESCRIPTION

[0025] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0026] In the description of the present utility model, it is necessary to understand that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", "inner side", "outer side", "inner end", "outer end", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features, which are used to distinguish and describe the features, without distinction of order or importance. In the description of the present utility model, unless otherwise specified, "multiple" means more than two.

[0027] In one embodiment of the present invention, Figure 1-3As shown, a chain tensioning device comprises a mounting base 1, a movable base 2, a sprocket 3 and a driving device 4; the movable base 2 can be movably mounted on the mounting base 1, the sprocket 3 can be rotatably mounted on the movable base 2, the sprocket 3 is used to install the chain, and the driving device 4 is used to adaptively adjust the position of the movable base 2; the mounting base 1 comprises a connecting frame 11 and a mounting frame 12, the two mounting frames 12 are arranged opposite to each other, the two connecting frames 11 are arranged opposite to each other, the left and right ends of the two connecting frames 11 are respectively mounted on the inner sides of the two mounting frames 12, and the two sides of the movable base 2 can be movably mounted on the inner sides of the two connecting frames 11. In this embodiment, the driving device 4 is an adaptive cylinder, which can be purchased on the market. During installation, the chain of the conveyor line is wound around the sprocket 3, and the sprocket 3 is installed on the moving seat 2. The moving seat 2 is installed inside the mounting seat 1 so that the moving seat 2 can move left and right. The driving device 4 is installed on the mounting seat 1, and the output shaft of the driving device 4 is connected to the moving seat 2. During the operation of the chain, when the chain is in a relaxed state, the thrust of the output shaft of the driving device 4 to the right is greater than the force of the chain to the left, and the output shaft of the driving device 4 will extend to the right, and the moving seat 2 drives the sprocket 3 to move to the right to tighten the chain until the thrust of the output shaft 4 of the driving device to the right is equal to the force of the chain to the left. When the chain is in a tensioned state, the force acting on the chain to the left is greater than the thrust of the output shaft of the driving device 4 to the right, the output shaft of the driving device 4 will retract to the left, and the movable seat 2 drives the sprocket 3 to move to the left until the thrust to the right of the driving device 4 is equal to the force acting on the chain to the left, thereby ensuring that the chain always maintains a suitable tensioned state during operation; the present application uses the mounting seat 1, the movable seat 2, the sprocket 3 and the driving device 4 to enable the movable seat 2 to adaptively move left and right according to the state of the chain turning, loosening and tightening during operation, thereby adjusting the tension of the chain by adjusting the position of the sprocket 3, which is convenient and quick, ensuring that the chain always maintains a suitable tensioned state during operation, and achieving the effect of improving the working stability and working reliability of the chain. Furthermore, the number of the connecting frames 11 and the mounting frames 12 is two, the two mounting frames 12 are arranged opposite to each other, the two connecting frames 11 are arranged opposite to each other, the left and right ends of the two connecting frames 11 are respectively installed on the inner sides of the front and rear ends of the two mounting frames 12, thereby forming a U-shaped structure, and the front and rear sides of the movable seat 2 are movably installed on the inner sides of the two connecting frames 11, that is, the movable seat 2 is built-in, which can not only improve the space utilization rate of the mounting seat 1, but also prevent the movable seat 2 from falling out, so that the chain tensioning device has better integrity.

[0028] like Figure 2-3As shown, it also includes a guide rail 5 and a first roller 6; a first groove 111 is provided on the inner side of the connecting frame 11, the guide rail 5 is installed in the first groove 111, the first roller 6 can be rotatably installed on the moving seat 2, the first roller 6 is against the top surface or bottom surface of the guide rail 5, and the first roller 6 can roll along the length direction of the guide rail 5. In this embodiment, the first grooves 111 are respectively provided on the front and rear inner sides of the connecting frame 11, the number of the guide rails 5 is eight, and each of the first grooves 111 is respectively installed with four guide rails 5. Specifically, the inner top surface and the inner bottom surface of each first groove 111 are respectively installed with two guide rails 5. The number of the first rollers 6 is four, and the front and rear sides of the moving seat 2 are respectively installed with two first rollers 6, and the top and bottom of each first roller 6 are respectively against the upper and lower guide rails 5. When working, the driving device 4 drives the moving seat 2 to move left and right, specifically, the first roller 6 moves left and right along the length direction of the guide rail 5, and the first roller 6 is arranged between the upper and lower guide rails 5, which can not only improve the rotation smoothness of the first roller 6, but also prevent the first roller 6 from bumping up and down, which is beneficial to improving the movement stability of the moving seat 2.

[0029] like Figure 2-3 As shown, the second roller 7 is also included, and the second roller 7 is rotatably mounted on the moving base 2, and the second roller 7 abuts against the side of the guide rail 5. In this embodiment, the number of the second rollers 7 is four, and two second rollers 7 are respectively mounted on the left and right ends of the moving base 2, and the second rollers 7 abut against the side of the guide rail 5 installed on the top surface of the first groove 111, and the second rollers 7 play a guiding role, thereby ensuring the movement accuracy of the moving base 2.

[0030] like Figure 2 As shown, the mounting frame 12 is provided with an adjustment slot 121, the connecting frame 11 is mounted on the mounting frame 12 through the adjustment slot 121, and the connecting frame 11 can move up and down along the length direction of the adjustment slot 121. In this embodiment, two adjustment slots 121 are respectively provided on the left and right sides of each mounting frame 12, the adjustment slots 121 are vertically arranged, the ends of the connecting frame 11 are mounted on the ends of the mounting frame 12 through the two adjustment slots 121, and the connecting frame 11 can move up and down along the length direction of the adjustment slot 121, so as to facilitate the adjustment of the misalignment of the two connecting frames 11 due to production errors, thereby ensuring the smooth movement of the moving seat 2 and preventing movement jams.

[0031] like Figure 2As shown, the mounting frame 12 is provided with a reinforcing rib 122, and the cross section of the reinforcing rib 122 is a triangular structure. In this embodiment, the mounting frame 12 is an L-shaped structure, because two reinforcing ribs 122 are provided on the outer sides of the front and rear ends of the mounting frame 12, and the cross section of the reinforcing rib 122 is a triangular structure, which is conducive to improving the structural stability of the mounting frame 12.

[0032] like Figure 2 As shown, the outer side of the connecting frame 11 is provided with a second groove 112, and the inner bottom surface of the second groove 112 is provided with a plurality of mounting holes 113, and the plurality of mounting holes 113 are arranged along the length direction of the connecting frame 11. In this embodiment, the outer side of the connecting frame 11 is provided with the second groove 112, and the inner bottom surface of the second groove 112 is provided with a plurality of mounting holes 113, which not only facilitates the installation of the mounting seat 1 on the production line frame, but also improves the space utilization rate of the mounting seat 1.

[0033] like Figure 1 As shown, the driving device 4 is installed on the outside of the mounting seat 1, the output end of the driving device 4 passes through the mounting seat 1, and the output end of the driving device 4 is connected to one end of the moving seat 2; it also includes a guide rod 8, one end of the guide rod 8 is connected to the other end of the moving seat 2, the other end of the guide rod 8 passes through the mounting plate 12, and the other end of the guide rod 8 is used to be movably mounted on the production line frame. In this embodiment, one end of the guide rod 8 is connected to the moving seat 2, the other end of the guide rod 8 passes through the mounting plate 12, and can be movably mounted on the frame of the production line. When working, the driving device 4 drives the moving seat 2 to move to the right, specifically, the moving seat 2 drives the guide rod 8 to move to the right along the length direction of the guide rod 8, and the guide rod 8 plays a guiding role, thereby ensuring the accuracy of the movement of the moving seat 2 and preventing deviation.

[0034] like Figure 1 As shown, the sprocket 3 is provided with a plurality of weight-reducing holes 31, and the plurality of weight-reducing holes 31 are evenly arranged along the circumferential direction of the sprocket 3. In this embodiment, the sprocket 3 is provided with six weight-reducing holes 31, and the weight-reducing holes 31 can reduce the weight of the sprocket 3, making the chain tensioning device lighter and easier to carry and move.

[0035] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0036] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A chain tensioning device, characterized in that: It includes a mounting seat, a moving seat, a sprocket and a driving device; The movable seat can be movably mounted on the mounting seat, the sprocket can be rotatably mounted on the movable seat, the sprocket is used to install a chain, and the driving device is used to adaptively adjust the position of the movable seat; The mounting seat includes a connecting frame and a mounting frame, the two mounting frames are arranged opposite to each other, the left and right ends of the two connecting frames are respectively installed on the inner sides of the two mounting frames, and the two sides of the movable seat are respectively movably installed on the inner sides of the two connecting frames.

2. A chain tensioning device according to claim 1, characterized in that: Also includes a guide rail and a first roller; A first groove is provided on the inner side of the connecting frame, the guide rail is installed in the first groove, the first roller is rotatably installed on the moving seat, the first roller abuts against the top surface or the bottom surface of the guide rail, and the first roller can roll along the length direction of the guide rail.

3. A chain tensioning device according to claim 2, characterized in that: It also includes a second roller, which is rotatably mounted on the moving seat and abuts against the side surface of the guide rail.

4. A chain tensioning device according to claim 1, characterized in that: The mounting frame is provided with an adjusting slot, the connecting frame is mounted on the mounting frame through the adjusting slot, and the connecting frame can move up and down along the length direction of the adjusting slot.

5. A chain tensioning device according to claim 1, characterized in that: The mounting frame is provided with reinforcing ribs, and the cross section of the reinforcing ribs is a triangular structure.

6. A chain tensioning device according to claim 1, characterized in that: A second groove is disposed on the outer side of the connecting frame, and a plurality of mounting holes are disposed on the inner bottom surface of the second groove. The plurality of mounting holes are disposed along the length direction of the connecting frame.

7. A chain tensioning device according to claim 1, characterized in that: The driving device is installed on the outer side of the mounting seat, the output end of the driving device passes through the mounting seat, and the output end of the driving device is connected to one end of the moving seat; It also includes a guide rod, one end of which is connected to the other end of the movable seat, the other end of which passes through the mounting frame, and the other end of which is used for being movably mounted on the production line frame.

8. A chain tensioning device according to claim 1, characterized in that: The sprocket is provided with a plurality of weight-reducing holes, and the plurality of weight-reducing holes are evenly arranged along the circumferential direction of the sprocket.

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