Double-pressing-wheel-set tensioning device

Abstract

The utility model provides a tensioning device with double pinch roller sets, which comprises an arc-shaped mounting plate, a fixed box is movably arranged at the top end of the mounting plate through an adjusting mechanism, a fixed screw tube is fixedly arranged in the fixed box in a penetrating manner, and the mounting plate is movably mounted on the outer side of the front end of the fixed screw tube through a mounting groove. The first pressing wheel and the second pressing wheel are rotationally mounted at the two ends of the mounting plate, the first pressing wheel and the second pressing wheel can be mounted on the inner side and the outer side of the belt, and the fixing cylinder and the mounting plate are rotationally adjusted through adjusting mechanisms such as a rotary knob, a worm and a worm gear, so that the first pressing wheel and the second pressing wheel can extrude the inner side and the outer side of the belt at the same time; according to the belt tensioning device, the belt tensioning range of the belt tensioning device is widened, after the belt tensioning device is fixed, the bolt does not need to be rotated, and the belt tensioning device is simple in operation mode, convenient to use and high in practicability.

Description

TECHNICAL FIELD

[0001] The utility model relates to tensioner technical field, concretely is a double compression wheel group tensioner. BACKGROUND

[0002] The utility model discloses a kind of belt tensioner, including base and eccentric wheel for tensioning belt, the base is fixed on machine body, the eccentric wheel is rotatably connected with the base;Carding structure is also provided between the base and the eccentric wheel, and the carding structure is used to clamp the eccentric wheel in set position.This technical scheme is adjusted by the rotation of eccentric wheel, it is convenient to extrude and tension to belt, but since the specification of eccentric wheel is fixed, the tensioning degree of eccentric wheel to belt is limited, and rotation adjustment is carried out to eccentric wheel, first loosens threaded connecting piece, then the eccentric wheel is twisted to be able to extrude and tension to belt, it is more cumbersome to operate, and low practicality.

[0003] Therefore, the utility model provides a double compression wheel group tensioner. UTILITY MODEL CONTENTS

[0004] In view of the deficiencies in the prior art, the utility model aims to provide a double compression wheel group tensioner to solve the problems in the background art, and the first compression wheel and the second compression wheel can be installed on both sides of the belt by setting the first compression wheel and the second compression wheel, the installation plate, the first compression wheel and the second compression wheel are adjusted by the adjusting mechanism, the belt can be extruded simultaneously, the tensioning range of the device to the belt is improved, and the operation is simple and convenient, with high practicality.

[0005] To achieve the above object, the utility model is implemented by the following technical scheme: a double compression wheel group tensioner, including installation plate, first compression wheel and second compression wheel, the shape of the installation plate is arc-shaped, a fixed box is movably provided at the top end of the installation plate by an adjusting mechanism, a fixed screw pipe is fixedly arranged inside the fixed box, the installation plate is movably installed on the outer side of the front end of the fixed screw pipe through a mounting groove, the adjusting mechanism includes a worm gear and a worm, a fixed cylinder is fixedly arranged inside the worm gear, and the fixed cylinder is fixedly arranged on the rear end outer wall of the installation plate.

[0006] Further, the first compression wheel and the second compression wheel are rotatably arranged on the same side of both ends of the installation plate by a fixed shaft, and the fixed shaft is symmetrically fixedly arranged on the same side of both ends of the installation plate.

[0007] Further, the cross-sectional shape of the fixed shaft is "T" type, the first compression wheel and the second compression wheel are rotatably installed on the outer side of the fixed shaft, and a compression groove is formed in the circumferential interior of the first compression wheel and the second compression wheel.

[0008] Further, the installation groove is arranged at the inner top end of the installation plate corresponding to the fixed screw pipe position, and the fixed screw pipe is rotatably arranged in the installation groove.

[0009] Further, the fixed cylinder is rotatably arranged in the fixed screw pipe, and the outer side of the fixed cylinder is fixedly provided with a fixed ring corresponding to one side of the worm wheel.

[0010] Further, the fixed cylinder is rotatably arranged in the fixed box through the fixed ring, and the fixed ring is movably arranged in the fixed box.

[0011] Further, the worm is rotatably arranged in one end of the fixed box, and the worm is rotatably arranged in the fixed box.

[0012] Further, one end of the worm is fixedly provided with a knob, the knob is arranged on the top of the fixed box, and an inner thread is arranged on the inner wall of the fixed screw pipe.

[0013] The beneficial effects of the double-pressing wheel set tensioning device are as follows: the first pressing wheel and the second pressing wheel can be arranged on the inner and outer sides of the belt through the rotation of the first pressing wheel and the second pressing wheel on the two ends of the installation plate, the rotation adjustment of the fixed cylinder and the installation plate is realized through the knob, the worm, the worm wheel and other adjusting mechanisms, the first pressing wheel and the second pressing wheel can simultaneously extrude the inner and outer sides of the belt, the tensioning range of the device on the belt is improved, and the device does not need to be rotated after being fixed, the operation mode of the device is simple, the device is convenient to use, and the device has high practicability. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 It is a structural diagram of the double-pressing wheel set tensioning device.

[0015] Fig. 2 It is a front view of the double-pressing wheel set tensioning device.

[0016] Fig. 3 It is a structural diagram of the installation plate of the double-pressing wheel set tensioning device.

[0017] Fig. 4 It is a structural diagram of the fixed box of the double-pressing wheel set tensioning device.

[0018] In the figure: 1, installation plate; 2, fixed box; 3, adjusting mechanism; 4, fixed screw pipe; 5, fixed shaft rod; 6, first pressing wheel; 7, second pressing wheel; 8, fixed cylinder; 9, fixed ring; 10, worm wheel; 11, worm; 12, installation groove; 13, knob. DETAILED DESCRIPTION

[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0020] Please see Figs. 1 to 4 This utility model provides a technical solution: a double pressure roller tensioning device, including a mounting plate 1, a first pressure roller 6, and a second pressure roller 7. The mounting plate 1 is arc-shaped, and a fixing box 2 is movably mounted on the top of the mounting plate 1 through an adjusting mechanism 3. A fixing screw tube 4 is fixedly mounted through the inside of the fixing box 2. The mounting plate 1 is movably mounted on the outer front end of the fixing screw tube 4 through a mounting groove 12. The adjusting mechanism 3 includes a worm gear 10 and a worm 11. A fixing cylinder 8 is fixedly mounted inside the worm gear 10. The fixing cylinder 8 is fixedly mounted on the outer rear end wall of the mounting plate 1. The first pressure roller 6 and the second pressure roller 7 can simultaneously squeeze the inner and outer sides of the belt, which can improve the tensioning range of the device. The structure is simple and the operation is convenient.

[0021] In this embodiment, the first pressure roller 6 and the second pressure roller 7 are rotatably mounted on the same side of both ends of the mounting plate 1 via a fixed shaft 5. The fixed shaft 5 is symmetrically fixed on the same side of both ends of the mounting plate 1. The cross-sectional shape of the fixed shaft 5 is "T". The first pressure roller 6 and the second pressure roller 7 are rotatably mounted on the outside of the fixed shaft 5. The first pressure roller 6 and the second pressure roller 7 are both provided with pressure grooves inside their circumferences. The fixed shaft 5 can limit the movement of the first pressure roller 6 and the second pressure roller 7, so that the first pressure roller 6 and the second pressure roller 7 can rotate with the belt. By setting the pressure grooves, the belt can be limited to prevent belt deviation.

[0022] In this embodiment, the mounting groove 12 is formed inside the top of the mounting plate 1, corresponding to the position of the fixing screw tube 4. The fixing screw tube 4 is rotatably disposed inside the mounting groove 12. The fixing cylinder 8 is rotatably disposed inside the fixing screw tube 4. A fixing ring 9 is fixedly disposed on the outer side of the fixing cylinder 8 corresponding to one side of the worm gear 10. The fixing cylinder 8 is rotatably disposed inside the fixing box 2 by the fixing ring 9. The fixing ring 9 is movably disposed inside the fixing box 2. The worm 11 is rotatably disposed inside one end of the fixing box 2. The worm 11 and the worm gear 10 are meshed with each other. A knob 13 is fixedly installed at one end of the worm gear 11. The knob 13 is located on the top of the fixed box 2. The inner wall of the fixed screw tube 4 is provided with an internal thread. The worm gear 11 can be rotated and adjusted by the knob 13. The worm gear 11 can easily rotate and adjust the fixed cylinder 8 by meshing with the worm wheel 10. In turn, the fixed cylinder 8 can rotate and adjust the mounting plate 1, the first pressure roller 6 and the second pressure roller 7, so as to facilitate the compression and tensioning of the belt by the first pressure roller 6 and the second pressure roller 7. The fixed ring 9 can limit the fixed cylinder 8 and improve the stability of the mounting plate 1.

[0023] In use, the inner bolt of the fixed screw pipe 4 is fixed to the fixed box 2 through the screw connection of the inner thread and the bolt, the device is installed on one side of the belt, the first pressing wheel 6 and the second pressing wheel 7 are arranged on the inner and outer sides of the belt respectively, the belt is installed in the pressing groove on the first pressing wheel 6 and the second pressing wheel 7, the belt is limited by the pressing groove, the first pressing wheel 6 and the second pressing wheel 7, the belt deviation is prevented, when the belt needs to be tensioned, the knob 13 is rotated, the knob 13 drives the worm 11 to rotate in the fixed box 2, the worm 11 drives the worm wheel 10 and the fixed cylinder 8 in the fixed box 2 through the worm wheel 10, the fixed ring 9 can limit the fixed cylinder 8, thereby improving the stability of the fixed cylinder 8, when the fixed cylinder 8 rotates, the mounting plate 1 rotates around the fixed screw pipe 4 as the axis, the mounting plate 1 drives the first pressing wheel 6 and the second pressing wheel 7 to rotate around the fixed screw pipe 4 as the axis through the fixed shaft 5 at both ends, the first pressing wheel 6 and the second pressing wheel 7 press the belt from the inner and outer sides, the belt is tensioned conveniently, the tensioning range of the device is improved, and after the device is fixed, the bolt does not need to be rotated, the operation mode of the device is simple, convenient to use and high in practicality.

[0024] Furthermore, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A double pulley set tensioner comprising a mounting plate (1), a first pulley (6) and a second pulley (7), characterized in that, The shape of the mounting plate (1) is arc-shaped, the top end of the mounting plate (1) is movably provided with a fixing box (2) through an adjusting mechanism (3), a fixed screw pipe (4) is fixedly arranged in the fixing box (2), the mounting plate (1) is movably mounted on the outer side of the front end of the fixed screw pipe (4) through a mounting groove (12), the adjusting mechanism (3) comprises a worm wheel (10) and a worm (11), a fixed cylinder (8) is fixedly arranged in the worm wheel (10), and the fixed cylinder (8) is fixedly arranged on the rear end outer wall of the mounting plate (1).

2. A dual idler assembly tensioner as in claim 1, wherein: The first pressing wheel (6) and the second pressing wheel (7) are rotatably arranged on the same side of the two ends of the mounting plate (1) through a fixed shaft rod (5), and the fixed shaft rod (5) is symmetrically fixedly arranged on the same side of the two ends of the mounting plate (1).

3. A dual idler assembly tensioner as in claim 2, wherein: The cross section shape of the fixed shaft rod (5) is "T" type, the first pressing wheel (6) and the second pressing wheel (7) are rotatably mounted on the outer side of the fixed shaft rod (5), and the circumferential inside of the first pressing wheel (6) and the second pressing wheel (7) is provided with a pressing groove.

4. A dual idler assembly tensioner as in claim 1, wherein: The mounting groove (12) is arranged in the inside of the top end of the mounting plate (1) corresponding to the position of the fixed screw pipe (4), and the fixed screw pipe (4) is rotatably arranged in the inside of the mounting groove (12).

5. A dual idler assembly tensioner as in claim 4, wherein: The fixed cylinder (8) is rotatably arranged in the inside of the fixed screw pipe (4), and the outer side of the fixed cylinder (8) is fixedly provided with a fixed ring (9) corresponding to one side of the worm wheel (10).

6. A dual idler assembly tensioner as in claim 5, wherein: The fixed cylinder (8) is rotatably arranged in the inside of the fixed box (2) through the fixed ring (9), and the fixed ring (9) is movably arranged in the inside of the fixed box (2).

7. A dual idler assembly tensioner as in claim 6, wherein: The worm (11) is rotatably arranged in the inside of one end of the fixed box (2), and the worm (11) and the worm wheel (10) are arranged in meshing relationship.

8. A dual idler assembly tensioner as in claim 7, wherein: One end of the worm (11) is fixedly provided with a knob (13), the knob (13) is arranged on the top of the fixed box (2), and an internal thread is formed in the inner wall of the fixed screw pipe (4).

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