CN217497524U - Belt tensioning device - Google Patents

Abstract

The utility model discloses a belt tensioning device, include: the device comprises a rack, a slide rail, a slide plate, a roller and a slide seat, wherein a bolt penetrates through the rack and is in threaded connection with a nut; two ends of the sliding rail are connected to the rack, and a sliding groove for embedding the bolt is formed in the sliding rail; the sliding plate is provided with a groove for embedding the sliding rail; the roller is rotatably arranged on the sliding plate; the slide can be dismantled and connect on the slide and seal the recess, and nut fixed connection is on the slide. The utility model provides a pair of belt tensioning device can be at the tight belt of great accommodation range under the limited circumstances in equipment space.

Description

Belt tensioning device

Technical Field

The utility model relates to a belt conveyor technical field especially relates to a belt tightener.

Background

At present, in the process of conveying sand and stone materials, because the elasticity of a belt is very strong, the tension and the relaxation degrees of the belt under the conditions of bearing load and not bearing load are different, particularly, when the belt is used for conveying materials, the belt is loosened, the friction force between the belt and a power driving wheel is directly influenced and reduced, and the belt is necessarily tensioned when the tension force is kept. Meanwhile, the belt belongs to a rubber part, the belt per se can be aged along with the increase of the service time, the tension force of the belt can be reduced, and the conveying capacity of the belt conveyor is ensured to be only achieved by tensioning the belt. The tensioning of the belt needs a telescopic space of a tensioning wheel, and the telescopic space is in proportion to the total length of the belt conveyor under the condition of certain material conveying. The traditional horizontal conveying belt conveyor tensioning device is tensioned by a heavy hammer, the heavy hammer tensioning device is arranged on a support of an inclined belt conveyor, a travelling wheel is arranged on one side of the heavy hammer device, a travelling wheel guide rail of the heavy hammer device is arranged on the support, the travelling wheel of the heavy hammer device is sleeved on the travelling wheel guide rail and can freely roll, the whole heavy hammer device is hung on a belt in a floating manner and can freely lift up and down along the guide rail on the support along with the extension and retraction of the belt, and the belt is automatically tensioned according to the gravity of the heavy hammer device; since it requires enough vertical space to allow it to telescope. However, the belt conveyor with limited structure, insufficient vertical space for the extension and retraction thereof and large tensioning range is difficult to realize economically.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a belt tensioning device can adjust the tensile force of belt in great range under the limited condition of structural space.

According to the utility model discloses a belt tightener of first aspect embodiment, include: the device comprises a rack, a slide rail, a slide plate, a roller and a slide seat, wherein a bolt penetrates through the rack, and a nut is connected to the bolt in a threaded manner; two ends of the sliding rail are connected to the rack; the sliding plate is provided with a groove for embedding the sliding rail; the roller is rotatably arranged on the sliding plate; the sliding seat is detachably connected to the sliding plate and seals the groove, and the nut is fixedly connected to the sliding seat; wherein rotating the bolt drives the nut, the slide, and the sled to move along the slide.

According to the utility model discloses belt tightener has following technological effect at least: the embodiment of the utility model provides a pair of belt tightener, when the bolt is rotatory, because nut and slide welding, so the nut is not rotatory along with the bolt, but along the activity of bolt length direction, the nut drives slide and slide along the slide rail motion, and the slide drives the tensioning of cylinder or loosens the tensile force of belt in order to realize adjusting the belt. Because the bolt only rotates during adjustment, the axial moving space of the bolt does not need to be reserved, the adjusting range of the tensioning belt is related to the length of the sliding rail, and the belt can be tensioned in a larger adjusting range under the condition of limited equipment space.

According to some embodiments of the utility model, the slide rail the slide is equipped with two sets ofly, so that the both ends of cylinder are installed respectively.

According to some embodiments of the invention, a support plate is connected between the frames at the two ends of the drum.

According to some embodiments of the present invention, the drum comprises a main shaft and a drum body, the main shaft is arranged in the drum body, and the main shaft is connected with the drum body through a flat key.

According to some embodiments of the invention, the barrel is spindle-shaped.

According to some embodiments of the utility model, the bolt is equipped with the bolt head, the bolt head under the pulling of belt with the frame offsets.

According to some embodiments of the utility model, be connected with the bearing frame on the slide, the cylinder is rotatory to be installed on the bearing frame.

According to some embodiments of the utility model, offer the confession on the slide rail the spout of bolt embedding, the size of nut is less than the size of spout.

According to some embodiments of the invention, the slide with the slide bolted connection.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a front view of an embodiment of the invention;

fig. 2 is a top view of an embodiment of the invention;

fig. 3 is a side view of an embodiment of the invention;

FIG. 4 is a front view of a skateboard in accordance with an embodiment of the present invention;

FIG. 5 is a top view of a skateboard in accordance with an embodiment of the present invention;

fig. 6 is a sectional view taken in the direction of a-a in fig. 5.

Reference numerals:

a frame 100, a support plate 101, a bolt 110, and a nut 111;

a slide rail 200, a chute 210;

a sliding plate 300, a bearing seat 301 and a groove 310;

a drum 400, a main shaft 410, a cylinder 420;

a slider 500.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 6, the utility model discloses a belt tensioning device includes: the roller type B-grade bolt comprises a rack 100, a slide rail 200, a sliding plate 300, a roller 400 and a sliding seat 500, wherein a bolt 110 penetrates through the rack 100, the bolt 110 is a B-grade bolt 110 with a hexagonal head, threads on the bolt 110 are trapezoidal, and a nut 111 is sleeved on and connected with the bolt 110 in a threaded manner; the slide rail 200 is channel steel. Both ends of the sliding rail 200 are welded on the frame 100, and the frame 100 is fixed on the ground directly or through other structural members. The sliding plate 300 is provided with a groove 310 for the sliding rail 200 to be inserted into, and it is foreseen that the size of the groove 310 on the sliding plate 300 is matched with the size of the sliding rail 200, so that the sliding rail 200 can be just inserted into the groove 310. The drum 400 is rotatably installed on the sliding plate 300; the slider 500 is detachably coupled to the slider 300 and closes the recess 310, and the slider 500 prevents the bolt 110 from being removed from the slider 300. The nut 111 is welded to the slider 500.

The utility model provides a pair of belt tightener, when bolt 110 is rotatory, because nut 111 and slide 500 welding, so nut 111 is not rotatory along with bolt 110, but along the activity of bolt 110 length direction, nut 111 drives slide 500 and slide 300 along the motion of slide rail 200, and slide 300 drives the tensioning of cylinder 400 or loosens the tensile force of belt in order to realize adjusting the belt. Because the bolt 110 only rotates during adjustment, the axial moving space of the bolt 110 does not need to be reserved, the adjustment range of the tensioning belt is related to the length of the sliding rail 200, and the belt can be tensioned in a large adjustment range under the condition of limited equipment space.

In some embodiments of the present invention, two sets of the slide rail 200, the slide plate 300 and the slide carriage 500 are provided for the two ends of the drum 400 to be installed respectively. The two ends of the roller 400 are respectively controlled with tensile force, so that the peripheral wall of the roller 400 and the running direction of a belt can be inclined to adjust the deviation of the belt, the running stability of the belt is improved, the two ends of the roller 400 are more uniformly stressed, and the service life of the roller during running can be prolonged.

In some embodiments of the present invention, the supporting plate 101 is bolted between the frames 100 at both ends of the drum 400. The supporting plate 101 is used to improve the strength of the structure and prevent the frame 100 from being damaged by an excessive tension.

In some embodiments of the present invention, the drum 400 includes a main shaft 410 and a cylinder 420, the main shaft 410 is inserted into the cylinder 420, and the main shaft 410 is connected with the cylinder 420 by a flat key. The main shaft 410 is rotatably connected to the slider 300 at both ends thereof, and the cylinder 420 is separately manufactured from the main shaft 410, thereby facilitating maintenance and replacement.

The utility model discloses a in some embodiments, barrel 420 periphery wall is fusiform, and the off tracking condition of fusiform barrel 420 ability automatic adjustment belt is favorable to reducing the plant maintenance number of times.

In some embodiments of the present invention, the bolt 110 is provided with a bolt head, and the bolt head is pressed against one side of the frame 100 facing the direction of the belt tightened by the roller 400 under the pulling of the belt. When the belt is tightened on the drum 400, the head of the bolt 110 is pressed against the frame 100 by the bolt 110 under the tension of the nut 111, so that the mounting structure of the bolt 110 and the frame 100 is simplified, and the bolt 110 and the frame 100 do not need other fixing methods, thereby facilitating maintenance and replacement.

In some embodiments of the present invention, the sliding plate 300 is bolted with the bearing seat 301, and the main shaft 410 is rotatably mounted on the bearing seat 301. The bearing seat 301 can reduce the friction force when the main shaft 410 rotates, and can play a role in buffering, and reduce the impact force on the sliding plate 300 when the belt runs. The service life of the equipment is prolonged.

In some embodiments of the present invention, the sliding rail 200 is provided with a sliding groove 210 for the bolt 110 to be inserted into, and the opening direction of the groove 310 is the same as the opening direction of the sliding groove 210. The size of the nut 111 is smaller than the size of the chute 210. The size of the nut 111 is smaller than that of the sliding slot 210, so that the nut 111 is completely embedded in the sliding slot 210 and avoids interference with the sliding seat 500. The shape of the nut may be square to facilitate welding to the side of the carriage 500.

In some embodiments of the present invention, the sliding base 500 is bolted to the sliding plate 300, and during the use, the sliding base 500 and the sliding plate 300 are easily worn, and the sliding base 500 and the sliding plate 300 are disassembled for maintenance, so that the sliding base 500 and the sliding plate 300 can be conveniently maintained and replaced.

The working principle is as follows: when the bolt 110 is rotated by a wrench, the nut 111 is welded to the slider 500, so that the nut 111 does not rotate with the bolt 110, but moves in the longitudinal direction of the bolt 110, and the slide rail 200 is inserted into the slide groove 210. The nut 111 drives the sliding base 500 and the sliding plate 300 to move along the sliding rail 200, and the sliding plate 300 drives the roller 400 to tighten or loosen the belt to achieve the adjustment of the tension of the belt. Because the bolt 110 only rotates during adjustment, the axial moving space of the bolt 110 does not need to be reserved, the belt can be tensioned under the condition of limited equipment space, and the installation space of the belt tensioning device is saved.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example" or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (9)

1. A belt tensioner, comprising:

the device comprises a rack (100), wherein a bolt (110) penetrates through the rack (100), and a nut (111) is connected to the bolt (110) in a threaded manner;

the two ends of the sliding rail (200) are connected to the frame (100),

the sliding plate (300) is provided with a groove (310) for the sliding rail (200) to be embedded in;

a drum (400), the drum (400) being rotatably mounted on the sliding plate (300);

the sliding seat (500) is detachably connected to the sliding plate (300) and closes the groove (310), and the nut (111) is fixedly connected to the sliding seat (500);

wherein rotating the bolt (110) can drive the nut (111), the slide (500) and the slide (300) to move along the slide rail (200).

2. A belt tensioner as claimed in claim 1, wherein: the sliding rail (200), the sliding plate (300) and the sliding seat (500) are provided with two groups, so that two ends of the roller (400) can be respectively installed.

3. A belt tensioner as claimed in claim 2, wherein: and a support plate (101) is connected between the frames (100) at the two ends of the roller (400).

4. A belt tensioner as claimed in claim 3, wherein: the roller (400) comprises a main shaft (410) and a roller body (420), the main shaft (410) is arranged in the roller body (420) in a penetrating mode, and the main shaft (410) is connected with the roller body (420) through a flat key.

5. A belt tensioner as claimed in claim 4, wherein: the barrel (420) is spindle-shaped.

6. A belt tensioner as claimed in claim 4, wherein: the bolt (110) is provided with a bolt head, and the bolt head is propped against the rack (100) under the pulling of the belt.

7. A belt tensioner as claimed in claim 6, wherein: the sliding plate (300) is connected with a bearing seat (301), and the roller (400) is rotatably arranged on the bearing seat (301).

8. A belt tensioner as claimed in claim 1, wherein: the sliding rail (200) is provided with a sliding groove (210) for embedding the bolt (110), and the size of the nut (111) is smaller than that of the sliding groove (210).

9. A belt tensioner as claimed in claim 1, wherein: the sliding base (500) is connected with the sliding plate (300) through bolts.

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