Self-adjusting tensioning wheel

Abstract

The utility model relates to the technical field of belt adjustment, and discloses a self-adjusting type tensioning wheel which comprises a supporting frame, the two ends of the supporting frame are rotationally connected with a driving wheel and a driven wheel respectively, the middle of the bottom face of the supporting frame is in threaded connection with a mounting plate, and the middle of the bottom face of the mounting plate is fixedly connected with an adjusting mechanism. According to the self-adjusting tensioning wheel, through the arrangement of the adjusting mechanism, the controller and the telescopic rod, the servo motor is started, the servo motor drives the lead screw to rotate, the lead screw drives the sleeve to move downwards until the reading of the pressure sensor reaches a preset value, that is, the belt reaches proper tension is indicated, and when the reading of the pressure sensor is gradually smaller than the preset value in the running process, the belt is driven to rotate. According to the belt tension adjusting device, the tightness degree can be automatically adjusted according to the belt tension, frequent manual adjustment is avoided, the transmission efficiency is improved, and the service life of the belt is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to a belt adjusting technical field, concretely relates to a self -adjusting type tensioner. BACKGROUND

[0002] Tensioner is a kind of common mechanical parts, usually used in the system of driving belt. Belt tensioner plays a vital role in various belt drive systems, its main role is to adjust the tension of the belt, ensure the stability and reliability of the belt in the running process.

[0003] In the system of driving belt, the belt will be stretched under the action of a certain tension for a long time. Especially when conveying heavy goods or the tension of the belt is not properly adjusted, the stretching deformation is more obvious. Excessive stretching deformation will cause the belt to relax, which needs to be adjusted by manpower to make the belt reach the appropriate tension, and the belt transmission needs to be stopped during the adjustment period, which will seriously reduce the work efficiency and affect the service life of the belt.

[0004] Therefore, a self-adjusting type tensioner is needed to solve the above problems. UTILITY MODEL CONTENTS

[0005] (I) technical problem solved

[0006] In view of the above shortcomings of the prior art, the utility model provides a self-adjusting type tensioner, which can effectively solve the problem of serious reduction of work efficiency and influence of service life of the belt in the prior art.

[0007] (II) technical scheme

[0008] In order to achieve the above purpose, the utility model is realized by the following technical scheme: a self-adjusting type tensioner, including support frame, both ends of the support frame are rotatably connected with driving wheel and driven wheel, the bottom surface middle of the support frame is screw connected with mounting plate, the bottom surface middle of the mounting plate is fixedly connected with adjusting mechanism, the adjusting mechanism includes servo motor fixedly connected to the bottom surface middle of mounting plate, the output end of the servo motor is fixedly connected with lead screw, the outer thread of the lead screw is connected with cylinder sleeve, the bottom surface of the cylinder sleeve is fixedly connected with pressure sensor, the bottom surface of the pressure sensor is fixedly connected with rotating frame, one side of the rotating frame is fixedly connected with controller, both sides of the rotating frame are fixedly connected with limiting mechanism.

[0009] As a further scheme of the utility model, the limiting mechanism includes sliding box fixedly connected to both sides of the rotating frame, the inner part of two sliding boxes is slidably connected with sliding sheet, a group of springs are fixedly connected between the surface one side of two sliding sheets and the inner side wall of sliding box, the surface other side of two sliding sheets is fixedly connected with limiting rod, and the limiting rod is convenient for fixing cleaning brush.

[0010] As a further scheme of the utility model, two limit rods are all slidably connected to one side of the sliding box, and an anti-skid sleeve is sleeved on one end of each of the two limit rods, so that the limit rods can be stably pulled.

[0011] As a further scheme of the utility model, two telescopic rods are fixedly connected to the top surface of the rotating frame at the bottom end of each of the two telescopic rods, so that the rotating frame can be stably lifted.

[0012] As a further scheme of the utility model, a cleaning brush is inserted into one end of each of the two limit rods, and a tensioning wheel is rotatably connected to the inner side wall of the rotating frame, and a belt is arranged between the cleaning brush and the tensioning wheel, so that the cleaning brush can clean sundries on the surface of the belt.

[0013] As a further scheme of the utility model, two threaded holes are formed in the surface of the mounting plate at both sides, and a bolt is threadedly connected to the inside of each of the two threaded holes, so that the mounting plate can be fixed.

[0014] (Three) beneficial effects

[0015] The utility model provides a kind of self-regulating tensioning wheel, with the following beneficial effects:

[0016] 1, the self-regulating tensioning wheel, by the setting of adjusting mechanism, controller and telescopic rod, start servo motor, servo motor drives screw rod to rotate, screw rod drives cylinder sleeve to move downwards, until the reading of pressure sensor reaches preset value, it is explained that belt reaches appropriate tension, when the reading of pressure sensor gradually less than preset value in running process, signal is transmitted to controller, controller controls servo motor rotation, so that cylinder sleeve moves downwards until pressure sensor reaches preset value, the device can automatically adjust the tightness degree according to belt tension, avoid artificial frequent adjustment, improve transmission efficiency and the service life of belt.

[0017] 2, the self-regulating tensioning wheel, by the setting of limiting mechanism and cleaning brush, cleaning brush is convenient for cleaning the impurities remaining on the surface of belt, maintains the flatness and smoothness of belt surface, and cleaning brush can be removed after pulling limit rod, and limit rod is pulled again, cleaning brush is placed in the inner side wall of rotating frame, and limit rod is loosened, sliding sheet is fixed to cleaning brush under the action of spring, and it is convenient for maintenance and replacement of cleaning brush. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is overall structure schematic view of the utility model;

[0019] Figure 2 It is adjusting mechanism structure schematic view of the utility model;

[0020] Figure 3 This is an enlarged cross-sectional view of the limiting mechanism structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the driving wheel and driven wheel of this utility model.

[0022] In the diagram: 1. Support frame; 2. Drive wheel; 3. Mounting plate; 4. Adjustment mechanism; 401. Servo motor; 402. Lead screw; 403. Sleeve; 404. Pressure sensor; 5. Rotating frame; 6. Limiting mechanism; 601. Sliding box; 602. Sliding plate; 603. Spring; 604. Limiting rod; 7. Telescopic rod; 8. Cleaning brush; 9. Tensioner wheel; 10. Belt; 11. Bolt; 12. Controller; 13. Driven wheel. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0024] Please see Figures 1 to 4 This utility model provides a technical solution: a self-adjusting tensioner, including a support frame 1, with a driving wheel 2 and a driven wheel 13 rotatably connected to both ends of the support frame 1. A mounting plate 3 is threadedly connected to the middle of the bottom surface of the support frame 1, and an adjustment mechanism 4 is fixedly connected to the middle of the bottom surface of the mounting plate 3. The adjustment mechanism 4 includes a servo motor 401 fixedly connected to the middle of the bottom surface of the mounting plate 3. A lead screw 402 is fixedly connected to the output end of the servo motor 401. A sleeve 403 is threadedly connected to the outside of the lead screw 402. A pressure sensor 404 is fixedly connected to the bottom surface of the sleeve 403. By setting up the adjustment mechanism 4, the controller 12 and the telescopic rod 7, frequent manual adjustment is avoided, and the transmission efficiency and service life of the belt 10 are improved. A rotating frame 5 is fixedly connected to the bottom surface of the pressure sensor 404. A controller 12 is fixedly connected to one side of the rotating frame 5. Limiting mechanisms 6 are fixedly connected to both sides of the rotating frame 5. By setting up the limiting mechanism 6 and the cleaning brush 8, it is convenient to maintain the flatness and smoothness of the belt 10 surface and to maintain and replace the cleaning brush 8.

[0025] Please see Figure 1 and Figure 3 The limiting mechanism 6 includes sliding boxes 601 fixedly connected to both sides of the rotating frame 5. Sliding pieces 602 are slidably connected inside the two sliding boxes 601. A set of springs 603 is fixedly connected between one side of the surface of the two sliding pieces 602 and the inner side wall of the sliding box 601. A limiting rod 604 is fixedly connected through the other side of the surface of the two sliding pieces 602. The limiting rod 604 facilitates the fixing of the cleaning brush 8.

[0026] Please refer to Figure 3 Both limiting rods 604 are slidably connected to one side of the sliding box 601, and one end of each limiting rod 604 is sleeved with an anti-skid sleeve, so as to facilitate stable pulling of the limiting rod 604.

[0027] Please refer to Figure 1 The bottom surface of the mounting plate 3 is fixedly connected with two telescopic rods 7, and the bottom ends of the two telescopic rods 7 are fixedly connected to the top surface of the rotating frame 5, so as to facilitate stable lifting of the rotating frame 5.

[0028] Please refer to Figure 1 and Figure 3 One end of each limiting rod 604 is inserted with a cleaning brush 8, and the inner side wall of the rotating frame 5 is rotatably connected with a tensioning wheel 9, and a belt 10 is arranged between the cleaning brush 8 and the tensioning wheel 9, so that the cleaning brush 8 can clean the sundries on the surface of the belt 10.

[0029] Please refer to Figure 1 and Figure 2 The surface of the mounting plate 3 is provided with two threaded holes penetratingly formed on both sides, and the interiors of the two threaded holes are threadedly connected with bolts 11, so that the mounting plate 3 can be fixed.

[0030] In the utility model, the working steps of the device are as follows:

[0031] The first step is to place the mounting plate 3 below the supporting frame 1, and then tighten the bolts 11 for fixation.

[0032] The second step is to start the servo motor 401, the servo motor 401 drives the lead screw 402 to rotate, the lead screw 402 drives the cylinder sleeve 403 to move downward, and when the reading of the pressure sensor 404 reaches the preset value, it means that the belt 10 reaches the appropriate tension, and when the reading of the pressure sensor 404 gradually becomes smaller than the preset value during operation, a signal is transmitted to the controller 12, the controller 12 controls the servo motor 401 to rotate, so that the cylinder sleeve 403 moves downward until the pressure sensor 404 reaches the preset value, the device can automatically adjust the tightness according to the tension of the belt 10, avoid frequent manual adjustment, improve the transmission efficiency and the service life of the belt 10.

[0033] The third step is to clean the residual impurities on the surface of the belt 10 with the cleaning brush 8, maintain the flatness and smoothness of the surface of the belt 10, and then pull the limiting rod 604 to detach the cleaning brush 8, and pull the limiting rod 604 again to place the cleaning brush 8 in the inner side wall of the rotating frame 5, and then loosen the limiting rod 604, the sliding sheet 602 drives the limiting rod 604 to fix the cleaning brush 8 under the action of the spring 603, so as to facilitate maintenance and replacement of the cleaning brush 8.

[0034] The above examples are only used to illustrate the technical solutions of the present application, and are not limiting; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical solutions recorded in the foregoing examples can still be modified, or some technical features therein can be replaced equivalently; and these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present application.

Claims

1. A self-adjusting tensioner, comprising a support frame (1), characterized in that, Both ends of the support frame (1) are rotatably connected to a drive wheel (2) and a driven wheel (13). A mounting plate (3) is threadedly connected to the middle of the bottom surface of the support frame (1). An adjustment mechanism (4) is fixedly connected to the middle of the bottom surface of the mounting plate (3). The adjustment mechanism (4) includes a servo motor (401) fixedly connected to the middle of the bottom surface of the mounting plate (3). A lead screw (402) is fixedly connected to the output end of the servo motor (401). A sleeve (403) is threadedly connected to the outside of the lead screw (402). A pressure sensor (404) is fixedly connected to the bottom surface of the sleeve (403). A rotating frame (5) is fixedly connected to the bottom surface of the pressure sensor (404). A controller (12) is fixedly connected to one side of the rotating frame (5). Limiting mechanisms (6) are fixedly connected to both sides of the rotating frame (5).

2. The self-adjusting tensioner according to claim 1, characterized in that, The limiting mechanism (6) includes sliding boxes (601) fixedly connected to both sides of the rotating frame (5). Sliding pieces (602) are slidably connected inside the two sliding boxes (601). A set of springs (603) is fixedly connected between one side of the surface of the two sliding pieces (602) and the inner sidewall of the sliding box (601). A limiting rod (604) is fixedly connected through the other side of the surface of the two sliding pieces (602).

3. The self-adjusting tensioner according to claim 2, characterized in that, Both of the limiting rods (604) are slidably connected to one side of the sliding box (601), and one end of each of the limiting rods (604) is fitted with an anti-slip sleeve.

4. The self-adjusting tensioner according to claim 1, characterized in that, Telescopic rods (7) are fixedly connected to both sides of the bottom surface of the mounting plate (3), and the bottom ends of the two telescopic rods (7) are fixedly connected to the top surface of the rotating frame (5).

5. A self-adjusting tensioner according to claim 2, characterized in that, A cleaning brush (8) is inserted into one end of each of the two limiting rods (604), and a tension wheel (9) is rotatably connected to the inner side wall of the rotating frame (5). A belt (10) is provided between the cleaning brush (8) and the tension wheel (9).

6. A self-adjusting tensioner according to claim 1, characterized in that, The mounting plate (3) has threaded holes on both sides of its surface, and bolts (11) are threaded into the interior of both threaded holes.

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