CN222833454U - Automatic tensioning device in middle part - Google Patents

Abstract

The utility model relates to a middle automatic tensioning device, which comprises a conveying device and a belt driven on the outer side of the conveying device, wherein a guide piece is arranged on the outer side of the conveying device, a tensioning wheel set which is perpendicular to the conveying device and is used for sliding adjustment is arranged in the guide piece, a first belt wheel which is used for guiding the belt to drive on the outer side of the tensioning wheel set is arranged in the guide piece, the tensioning wheel set is driven to move, and a reset spring for adjusting the tensioning of the belt is arranged in the guide piece.

Description

Automatic tensioning device in middle part

Technical Field

The utility model relates to the technical field of belt tensioning, in particular to a middle automatic tensioning device.

Background

The middle tensioning device is a device for tensioning the belt, and mainly has the effects of adjusting the tension of the belt, ensuring the flatness of the belt, reducing the abrasion of the belt, and effectively preventing various problems caused by over-loosening or over-tightening of the belt, such as the running failure of a conveying system caused by over-stretching and deviation of the belt.

The existing belt tensioning device is generally manually operated and adjusted, the belt is adjusted to be tensioned or loosened according to the tensioning current situation when the belt is used, the mode of manually adjusting the tensioning device cannot be adjusted at any time according to the tensioning and tightening degree of the belt, the adjusting interval is not regular, the belt still moves in a loose and tight state in part of time in the use process of the conveying device, the belt abrasion is increased, and even the belt is caused to deviate seriously, so that the belt is very inconvenient.

Disclosure of utility model

Based on the above expression, the utility model provides an automatic middle tensioning device, which solves the problem that the existing tensioning device cannot sense the tension and the tightness of a belt at any time to adjust in a manual control mode.

The middle automatic tensioning device comprises a conveying device and a belt driven on the outer side of the conveying device, wherein a guide piece is arranged on the outer side of the conveying device, a tensioning wheel set which is perpendicular to the conveying device and used for sliding adjustment is arranged in the guide piece, a first belt wheel which guides the belt to drive on the outer side of the tensioning wheel set is arranged in the guide piece, and a reset spring which drives the tensioning wheel set to move and adjusts tensioning of the belt is arranged in the guide piece.

On the basis of the technical scheme, the utility model can be improved as follows.

Further, the guide piece comprises an assembly plate and a chute, the assembly plate is arranged at the center of the outer side of the conveying device, the chute is arranged at the center of the inner wall of the assembly plate, which is far away from the centers of the two sides, the chute is symmetrically distributed by taking the center of the assembly plate as an origin, and the chute is in a C shape.

Further, tensioning wheelset includes axostylus axostyle, slider and second band pulley, the slider is the C font, and the shape size with the size looks adaptation of spout, the slider is installed the both ends of axostylus axostyle, and sliding connection is in the spout, the second band pulley is installed the central authorities in the axostylus axostyle outside.

Further, the first belt wheels are installed between two sides of the inner wall of the assembly plate, which are far away from each other, and are located on two sides of the sliding groove, and the first belt wheels are symmetrically distributed by taking the center of the assembly plate as an origin.

Further, the reset spring is arranged between the sliding block and one end, close to the conveying device, of the inner wall of the sliding groove, the surface of the reset spring is attached to the inner wall of the sliding groove, and the reset spring is in a compressed state.

Further, the belt is driven outside the conveying device and the second belt wheels, and bypasses the two first belt wheels.

Compared with the prior art, the technical scheme of the application has the following beneficial technical effects:

According to the utility model, the tension wheel set and the return spring which are arranged in the sliding groove are matched with the first belt wheel, the return spring is in a compressed state, the belt which is conveyed to the outer side of the second belt wheel acts on the return spring through the tension force of the return spring, so that the belt can be kept in the compressed state, when the belt is loosened, the tension action of the return spring is reduced, the belt can be reset and displaced, the second belt wheel is moved to carry out tension adjustment on the belt, so that the belt is kept flat again on the outer side of the conveying device, the belt which is conveyed to the outer side of the second belt wheel can be moved to the conveying device in a flat manner by being matched with the guide of the first belt wheel, the belt is convenient to be matched with the conveying device, the belt adjustment process is full-automatic, the loosening degree of the belt can be adjusted at any time, the manpower is saved, the abrasion of the belt use is effectively controlled, and the condition such as conveying fault caused by the tension imbalance of the belt is avoided.

Drawings

FIG. 1 is a schematic cross-sectional view of an automatic middle tensioner according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram of a belt and tensioner assembly connection according to an embodiment of the present utility model;

FIG. 3 is a schematic diagram of an exploded structure of a tensioner set and a runner in an embodiment of the present utility model;

FIG. 4 is a schematic diagram of a middle automatic tensioner according to an embodiment of the present utility model;

In the drawings, the list of components represented by the various numbers is as follows:

1. A conveying device; 2, a guide piece, 21, an assembly plate, 22, a chute, 3, a first belt wheel, 4, a tensioning wheel set, 41, a shaft lever, 42, a sliding block, 43, a second belt wheel, 5, a return spring and 6, and a belt.

Detailed Description

In order that the application may be readily understood, a more complete description of the application will be rendered by reference to the appended drawings. Embodiments of the application are illustrated in the accompanying drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

Referring to fig. 1-4, the middle automatic tensioning device of the present utility model includes a conveying device 1 and a belt 6 driven on the outer side of the conveying device 1, a guide member 2 is installed on the outer side of the conveying device 1, a tensioning wheel set 4 which is perpendicular to the conveying device 1 and performs sliding adjustment is installed in the guide member 2, a first belt wheel 3 which guides the belt 6 to drive on the outer side of the tensioning wheel set 4 is installed in the guide member 2, and a return spring 5 which drives the tensioning wheel set 4 to move and adjusts the tensioning of the belt 6 is installed in the guide member 2.

Referring to fig. 1, the guide member 2 includes a mounting plate 21 and a chute 22, the mounting plate 21 is mounted in the center of the outer side of the conveying device 1, the chute 22 is provided in the center of the inner wall of the mounting plate 21 away from each other, the chute 22 is symmetrically distributed with the center of the mounting plate 21 as the origin, the chute 22 is in a C shape, the C-shape of the chute 22 can be attached to the return spring 5 through the inner arc surface, so as to play a limiting role, the return spring 5 can be attached to the inner wall of the chute 22 to keep the stressed vertical in the stretching and compressing process during the moving process, and the influence of the bending of the non-stressed return spring 5 on the subsequent use is avoided.

Referring to fig. 3, the tensioning wheel set 4 includes a shaft 41, a slider 42 and a second pulley 43, the slider 42 is C-shaped, the shape and size of the slider are adapted to the size of the chute 22, the slider 42 is mounted at two ends of the shaft 41 and is slidably connected in the chute 22, the second pulley 43 is mounted in the center of the outer side of the shaft 41, the shaft 41 vertically moves along the chute 22 through the sliders 42 at two ends, and is limited by sliding fit between the chute 22 and the slider 42, the shaft 41 is vertically arranged in the assembly plate 21, so that tilting phenomenon is avoided, and stability of the second pulley 43 on the outer side of the shaft 41 when conveying the belt 6 is ensured.

Referring to fig. 1, the first belt wheels 3 are installed between two sides of the inner wall of the assembly plate 21 far away from each other and located at two sides of the chute 22, the first belt wheels 3 are symmetrically distributed with the center of the assembly plate 21 as an origin, and the two first belt wheels 3 can control the deformation and protrusion areas of the belt 6 towards the second belt wheel 43, so that the belt 6 can only deform and drive in the assembly plate 21, the occupied space of the belt 6 is controlled, the belt 6 is still kept neat outside the conveying device 1, and after the belt 6 is tensioned and regulated by the second belt wheel 43, the first belt wheels 3 can also drive the belt 6 smoothly towards the conveying device 1, so that the suitability of the belt 6 for driving and using with the conveying device 1 after being tensioned and regulated is ensured.

Referring to fig. 1, a return spring 5 is installed between a sliding block 42 and one end of the inner wall of a chute 22, which is close to a conveying device 1, the surface of the return spring 5 is attached to the inner wall of the chute 22, the return spring 5 is in a compressed state, a belt 6 is driven on the outer sides of the conveying device 1 and a second belt pulley 43, and bypasses two first belt pulleys 3, the belt 6 conveyed on the outer sides of the second belt pulleys 43 acts on the return spring 5 through self tensioning force, so that the belt can be kept in a compressed state, when the belt 6 is loosened, the tension acting on the return spring 5 is reduced, return displacement is generated, the second belt pulley 43 is moved through the sliding block 42 to carry out tensioning adjustment on the belt 6, so that the belt 6 is kept flat on the outer sides of the conveying device 1 again, after the belt 6 is readjusted, the belt 6 is acted on the return spring 5 through tensioning force, the process of adjusting the belt 6 through the return spring 5 can sense the looseness degree of the belt 6 at any time, and manpower is saved.

As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," and/or the like, specify the presence of stated features, integers, steps, operations, elements, components, or groups thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or groups thereof.

The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.

Claims (6)

1. The middle automatic tensioning device comprises a conveying device (1) and a belt (6) which is driven to the outer side of the conveying device (1), and is characterized in that a guide piece (2) is arranged on the outer side of the conveying device (1), a tensioning wheel set (4) which is perpendicular to the conveying device (1) and used for sliding adjustment is arranged in the guide piece (2), a first belt wheel (3) which is used for guiding the belt (6) to drive to the outer side of the tensioning wheel set (4) is arranged in the guide piece (2), and a reset spring (5) which is used for driving the tensioning wheel set (4) to move and adjusting tensioning of the belt (6) is arranged in the guide piece (2).

2. The automatic middle tensioning device according to claim 1, wherein the guide piece (2) comprises a mounting plate (21) and sliding grooves (22), the mounting plate (21) is mounted in the center of the outer side of the conveying device (1), the sliding grooves (22) are formed in the centers of the inner walls of the mounting plate (21) far away from each other, the sliding grooves (22) are symmetrically distributed by taking the center of the mounting plate (21) as an origin, and the sliding grooves (22) are C-shaped.

3. The automatic middle tensioning device according to claim 2, wherein the tensioning wheel set (4) comprises a shaft lever (41), a sliding block (42) and a second belt wheel (43), the sliding block (42) is C-shaped and is matched with the sliding groove (22) in size, the sliding block (42) is arranged at two ends of the shaft lever (41) and is connected in the sliding groove (22) in a sliding mode, and the second belt wheel (43) is arranged in the center of the outer side of the shaft lever (41).

4. The automatic middle tensioning device according to claim 3, wherein the first belt wheel (3) is installed between two sides of the inner wall of the assembly plate (21) far away from each other and positioned at two sides of the sliding groove (22), and the first belt wheel (3) is symmetrically distributed with the center of the assembly plate (21) as an origin.

5. The automatic middle tensioning device according to claim 3, wherein the return spring (5) is installed between the sliding block (42) and one end, close to the conveying device (1), of the inner wall of the sliding groove (22), the surface of the return spring (5) is attached to the inner wall of the sliding groove (22), and the return spring (5) is in a compressed state.

6. A mid-section automatic tensioner according to claim 3, characterized in that the belt (6) is driven outside the conveyor (1) and the second pulleys (43) and bypasses both the first pulleys (3).