Belt pulley transmission structure

Abstract

The utility model discloses a belt pulley transmission structure in the field of transmission structures, which comprises a driving motor and a motor seat, the output end of the driving motor is coaxially provided with a motor wheel, the motor wheel is in transmission connection with a flywheel through a belt, and the front side of the motor seat is rotatably supported on a front supporting seat through a main rotating shaft. The rear side of the front supporting seat is fixed on an adjusting screw rod through a plurality of adjusting nuts, a plurality of gaskets are arranged between the adjusting nuts and the motor seat, the bottom of the adjusting screw rod is rotatably supported on a rear supporting seat through a branch rotating shaft, and the front supporting seat and the rear supporting seat are correspondingly arranged on the horizontal plane of equipment. And the flywheel is rotatably arranged on the vertical plane of the equipment. The tightness of the belt can be controlled by adjusting the center distance between the flywheel and the motor wheel, and the transmission efficiency is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of transmission structures, and particularly relates to a pulley transmission structure. Background Art

[0002] In existing technology, pulley transmission uses a tensioned (endless) belt, placed on pulleys on two drive shafts. It relies on the friction generated by the tension between the belt and pulleys to transmit power from one shaft to the other. Belt transmission can be used to transmit power over large distances between two shafts (the working machine and the power machine). The elasticity of the belt mitigates shock and reduces vibration, offering the advantage of smooth transmission. However, its disadvantage is that this transmission method requires high belt tension. After long-term operation, the belt can easily loosen and slip under heavy loads, affecting transmission efficiency, increasing belt wear, and reducing belt life. Utility Model Content

[0003] The utility model aims to provide a pulley transmission structure, which can control the tightness of the belt by adjusting the center distance between the flywheel and the motor wheel to ensure the transmission efficiency.

[0004] The purpose of the present utility model is achieved as follows: a pulley transmission structure, comprising a driving motor and a motor seat, the output end of the driving motor is coaxially provided with a motor wheel, the motor wheel is connected to the flywheel through a belt, the front side of the motor seat is rotatably supported on the front support seat through the main rotating shaft, and the rear side is fixed to the adjusting screw through a plurality of adjusting nuts, a plurality of gaskets are provided between the adjusting nut and the motor seat, the bottom of the adjusting screw is rotatably supported on the rear support seat through the sub-rotating shaft, the front support seat and the rear support seat are arranged corresponding to each other on the horizontal plane of the equipment, and the flywheel is rotatably arranged on the vertical plane of the equipment.

[0005] When using the present invention, the adjustment screw is rotated forward or backward, and the adjustment nuts are simultaneously rotated left or right, thereby raising or lowering the rear height of the motor base, thereby adjusting the center distance between the flywheel and the motor wheel to achieve the appropriate transmission efficiency and speed. After determining the appropriate center distance, the adjustment nut is tightened on the gasket to fix the motor base and the adjustment screw. Compared with the existing technology, the present invention has the following beneficial effects: if the belt becomes loose during operation of the equipment, the operator can adjust the height of the adjustment nut and the angle of the adjustment screw to solve the problem of belt tightness without occupying the original transmission space, thereby avoiding the occurrence of belt slippage, thereby improving transmission efficiency, reducing wear and tear on the motor wheel and flywheel, and reducing consumption.

[0006] As a further improvement of the present invention, the adjusting screw comprises a threaded rod and an arc-shaped connecting block, and the arc-shaped connecting block is provided with a through hole for the rotating shaft to pass through.

[0007] As a further improvement of the present invention, the motor base includes a supporting body and two symmetrically distributed mounting ears, the mounting ears are provided with a fixed hole for the main shaft to pass through, and the supporting body is provided with a straight slot for the adjustment screw to pass through.

[0008] As a further improvement of the present invention, the front support seat includes a first base plate and two corresponding first support plates, the first support plate is provided with a mounting hole for the main shaft to pass through, a reinforcement plate is provided between the first base plate and the first support plate, and the first base plate is provided with a plurality of first countersunk holes, and the plurality of first countersunk holes are symmetrically distributed on both sides of the reinforcement plate.

[0009] As a further improvement of the present invention, the rear support seat includes a second base plate and two corresponding second support plates, the second support plate is provided with a through hole for the rotating shaft to pass through, the second base plate is provided with a plurality of second countersunk holes, and the plurality of second countersunk holes are distributed around the second base plate.

[0010] As a further improvement of the present invention, a main positioning cone is provided at one end of the main rotating shaft, and a main positioning hole is opened at the other end, and a main limiting member is provided in the main positioning hole.

[0011] As a further improvement of the present invention, a sub-positioning cone is provided at one end of the sub-rotating shaft, and a sub-positioning hole is opened at the other end, and a sub-limiting piece is provided in the sub-positioning hole.

[0012] As a further improvement of the present invention, a pressure cover is further included, which fixes the motor wheel on the output shaft of the drive motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is the main view of the present utility model.

[0014] Figure 2 It is a top view of the utility model.

[0015] Figure 3 This is a top view of the motor base of the utility model.

[0016] Figure 4 It is a side view of the front support seat of the utility model.

[0017] Figure 5 It is a side view of the rear support seat of the utility model.

[0018] Among them, 1 drive motor, 2 motor seat, 201 support body, 202 mounting ear, 203 fixing hole, 204 straight slot, 3 motor wheel, 4 pressure cover, 5 belt, 6 flywheel, 7 main shaft, 8 front support seat, 801 first base plate, 802 first support plate, 803 mounting hole, 804 reinforcement plate, 805 first countersunk hole, 9 adjusting nut, 10 adjusting screw, 11 rear support seat, 1101 second base plate, 1102 second support plate, 1103 through hole, 1104 second countersunk hole, 12 gasket, 13 sub-shaft, 14 sub-limiting piece. DETAILED DESCRIPTION

[0019] like Figure 1-5 As shown, a pulley transmission structure includes a drive motor 1 and a motor base 2. The output end of the drive motor 1 is coaxially provided with a motor wheel 3 and is positioned and connected through a pressure cover 4. The motor wheel 3 is connected to the flywheel 6 through a belt 5. The front side of the motor base 2 is rotatably supported on the front support base 8 through the main shaft 7, and the rear side is fixed to the adjustment screw 10 through four adjusting nuts 9. Specifically, the motor base 2 includes a support body 201 and two symmetrically distributed mounting ears 202. The mounting ears 202 are provided with fixing holes 203 to allow the main shaft 7 to pass through. The support body 201 is provided with a straight slot 204 for the adjustment screw 10 to pass through; the front support seat 8 includes a first base plate 801 and two corresponding first support plates 802, the first support plate 802 is provided with a mounting hole 803 for the main shaft 7 to pass through, a reinforcing plate 804 is provided between the first base plate 801 and the first support plate 802, the first base plate 801 is provided with four first countersunk holes 805, and the four first countersunk holes 805 are symmetrically distributed on both sides of the reinforcing plate 804 for fixed connection with the equipment; the rear support seat 11 includes a second base plate Plate 1101 and two corresponding second support plates 1102, the second support plate 1102 is provided with a through hole 1103 to allow the sub-rotation shaft 13 to pass through, the second base plate 1101 is provided with four second countersunk holes 1104, and the four second countersunk holes 1104 are distributed around the second base plate 1101 for fixed connection with the equipment; two gaskets 12 are provided between the adjusting nut 9 and the motor base 2, and the bottom of the adjusting screw 10 is rotatably supported on the rear support seat 11 through the sub-rotation shaft 13, and the front support seat 8 and the rear support seat 11 are provided correspondingly to each other. On the horizontal plane of the equipment, the flywheel 6 is rotatably set on the vertical plane of the equipment; the adjusting screw 10 includes a threaded rod and an arc-shaped connecting block, and the arc-shaped connecting block is provided with a through hole 1103 to accommodate the sub-rotating shaft 13 to pass through; a main positioning cone is provided at one end of the main rotating shaft 7, and a main positioning hole is provided at the other end, and a main limiting member is provided in the main positioning hole to prevent the main rotating shaft 7 workstation from axial movement; a sub-positioning cone is provided at one end of the sub-rotating shaft 13, and a sub-positioning hole is provided at the other end, and a sub-limiting member 14 is provided in the sub-positioning hole to prevent the sub-rotating shaft 13 workstation from axial movement.

[0020] When the present invention is in use, the adjusting nut 9 and the washer 12 are removed from the adjusting screw 10 and the adjusting screw 10 is rotated backward, so that the belt 5 can fall off the motor wheel 3, which is convenient for personnel to repair and replace; after replacing the belt 5, the adjusting screw 10 is rotated forward or backward to move it back and forth in the straight slot 204 until the belt 5 is in a suitable tightness, and then the adjusting nut 9 is tightened to fix the motor base 2 and the adjusting screw 10, so that the drive motor 1 and the motor wheel 3 are in a stable state.

[0021] The present invention is not limited to the above-mentioned embodiments. On the basis of the technical solutions disclosed in the present invention, technicians in this field can make some substitutions and deformations of some technical features therein according to the disclosed technical content without creative labor, and these substitutions and deformations are all within the protection scope of the present invention.

Claims

1. A pulley transmission structure, comprising a drive motor and a motor seat, wherein the output end of the drive motor is coaxially provided with a motor wheel, and the motor wheel is connected to the flywheel through a belt, characterized in that: The front side of the motor seat is rotatably supported on the front support seat through the main rotating shaft, and the rear side is fixed to the adjusting screw through a plurality of adjusting nuts. A plurality of gaskets are arranged between the adjusting nut and the motor seat. The bottom of the adjusting screw is rotatably supported on the rear support seat through the sub-rotating shaft. The front support seat and the rear support seat are arranged corresponding to each other on the horizontal plane of the equipment, and the flywheel is rotatably arranged on the vertical plane of the equipment.

2. A pulley transmission structure according to claim 1, characterized in that: The adjusting screw comprises a threaded rod and an arc-shaped connecting block, and the arc-shaped connecting block is provided with a through hole for the rotating shaft to pass through.

3. A pulley transmission structure according to claim 1, characterized in that: The motor base includes a supporting body and two symmetrically distributed mounting ears. The mounting ears are provided with a fixing hole for the main shaft to pass through, and the supporting body is provided with a straight slot for the adjusting screw to pass through.

4. A pulley transmission structure according to claim 1, characterized in that: The front support seat includes a first base plate and two corresponding first support plates. A mounting hole is provided on the first support plate to allow the main shaft to pass through. A reinforcement plate is provided between the first base plate and the first support plate. A plurality of first countersunk holes are provided on the first base plate, and the plurality of first countersunk holes are symmetrically distributed on both sides of the reinforcement plate.

5. A pulley transmission structure according to claim 1, characterized in that: The rear support seat includes a second base plate and two corresponding second support plates, the second support plate is provided with a through hole for the rotating shaft to pass through, the second base plate is provided with a plurality of second countersunk holes, and the plurality of second countersunk holes are distributed around the second base plate.

6. A pulley transmission structure according to claim 1, characterized in that: One end of the main rotating shaft is provided with a main positioning truncated table, and the other end is provided with a main positioning hole, and a main limiting member is provided in the main positioning hole.

7. A pulley transmission structure according to claim 1, characterized in that: A sub-positioning circular table is provided at one end of the sub-rotating shaft, and a sub-positioning hole is opened at the other end. A sub-limiting piece is provided in the sub-positioning hole.

8. A pulley transmission structure according to any one of claims 1 to 7, characterized in that: A pressure cover is also included, which fixes the motor wheel on the output shaft of the drive motor.

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