CN214877807U - Tensioning mechanism of flexible conveying belt - Google Patents

Abstract

A tensioning mechanism for a flexible conveyor belt comprising: tensioning shaft, rocker, handle, spacing subassembly, two tensioning arms and two connecting bolt. One end of the handle is welded with an adjusting disc, and the other end of the handle penetrates through the side wall of the machine body and is welded with the rocker in a staggered manner; the connecting bolt is parallel and the symmetry sets up about the central line of organism both sides wall, connecting bolt's bolt head is located one side of tensioning axle, and its screw rod passes the opposite side of tensioning axle, just be equipped with spring, adjusting nut and thin nut on the screw rod in proper order, the bottom of screw rod is connected to the gyration seat, the cooperation cover of gyration seat is located on the rocker. Different spacing holes are inserted into the adjusting disc through the cooperation of the limiting pin, and when the handle is rotated, the distance between the driven roller and the driving roller can be adjusted in multiple stages, so that the tension degree of the conveying belt is adjusted, the multiple stages of the tension degree can be adjusted, and the tensioning amount is adjusted according to the actual length of the conveying belt.

Description

Tensioning mechanism of flexible conveying belt

Technical Field

The utility model relates to a flexible conveyor belt technical field, concretely relates to straining device of flexible conveyor belt.

Background

Along with the rapid development of agricultural machinery, flexible conveying devices are more and more popular, and after a flexible conveying belt is tensioned by a driving roller and a driven roller, the flexible conveying belt rotates around the driving roller and the driven roller to achieve the purpose of crop conveying.

The conveying belt is mostly made of rubber or canvas which is elastic, the tensioning amount is frequently adjusted according to actual use requirements in the use process, most tensioning structures in the existing market are basically tensioned through screw rod structures, the adjustment of the screw rods is time-consuming and labor-consuming, if the conveying belt needs to be replaced, the tensioning amount needs to be reduced, the conveying belt can be conveniently replaced when in a loose state, and the tensioning amount needs to be adjusted for tensioning after replacement, so that the operation is very complicated; meanwhile, the single rocking handle tensioning mechanism utilizes the over-dead-point principle to tension, the tensioning amount of the single rocking handle over-dead-point is fixed and unadjustable, the requirement on the length accuracy of the conveying belt is high, and in actual use, the phenomenon that the conveying belt is elongated after being used for a period of time or the joint part is damaged is often found, only a new conveying belt can be replaced, the resource waste is large, and the maintenance cost is high for a user.

SUMMERY OF THE UTILITY MODEL

For solving above-mentioned current overspeed device tensioner can not adjust the tensioning volume to elongate or connect the technical problem who damages and lead to length variation after the adaptation flexible conveyor belt uses, the utility model provides a flexible conveyor belt's straining device to adapt to the change of conveyer belt length through adjustment tensioning volume, thereby improve the reuse rate of conveyer belt, increase of service life.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this: the utility model provides a straining device of flexible conveyer belt, include: tensioning shaft, rocker, handle, spacing subassembly, two tensioning arms and two connecting bolt. One end of each tensioning arm is fixedly connected to two ends of the shaft of the driven roller respectively, and the other end of each tensioning arm is connected to two ends of the tensioning shaft respectively through a shaft sleeve; the tensioning shaft and the rocker are arranged between the driven roller and the driving roller and are sequentially far away from the driven roller and arranged in parallel; an adjusting disc is welded at one end of the handle, the other end of the handle penetrates through a small arc end of a special-shaped hole formed in the side wall of the machine body and is welded with a rocker in a staggered mode, the other end of the rocker is welded with an end shaft in a staggered mode, the end shaft is coaxial with the handle, and the end shaft penetrates into a shaft sleeve formed in the machine body; the connecting bolts are arranged in parallel and symmetrically relative to the central line of two side walls of the machine body, the bolt heads of the connecting bolts are positioned on one side of the tensioning shaft, the screw rods of the connecting bolts penetrate through the other side of the tensioning shaft, springs, adjusting nuts and thin nuts are sequentially arranged on the screw rods, the bottoms of the screw rods are connected to a rotary seat, and the rotary seat is matched and sleeved on the rocker; when the handle is rotated to adjust the driven roller to a proper position, one end of the limiting component is fixed on the side wall of the machine body, and the other end of the limiting component is inserted into the limiting hole on the adjusting disc in a matching mode according to the adjusting amount of the conveying belt.

Preferably, the limiting assembly comprises a limiting pin, one end of the limiting pin is inserted into a limiting hole in the adjusting disc in a matched mode and fixed through a pin shaft, a connecting seat is arranged on the side wall of the machine body in a matched mode, a rotary sleeve is installed in the connecting seat, and after the other end of the limiting pin penetrates through the rotary sleeve, the exposed part of the other end of the limiting pin is sequentially provided with a pressure spring, a flat washer and a split pin.

Preferably, two rings of limiting holes are arranged on the disc surface of the adjusting disc around the disc center, and the limiting holes are uniformly distributed on the circumference of the disc center.

Preferably, the opposite side of tensioning axle is equipped with the draw-in groove, the outer bottom surface of draw-in groove is connected in the spring, connecting bolt's screw rod passes behind the draw-in groove, is equipped with spring, adjusting nut and thin nut on it in proper order.

Preferably, the clamping groove is made of an elastic material.

Adapt to the change of conveyer belt length in order to adjust the tensioning volume to improve the reuse rate of conveyer belt, increase of service life, the utility model provides a straining device of flexible conveyer belt, beneficial effect is:

1. the utility model discloses a spacing hole of difference on the adjusting disk is inserted in the spacer pin cooperation, when twist grip, can the multistage adjustment distance between driven roll and the drive roll to adjust the rate of tension of conveyer belt, realize that the multistage of rate of tension is adjustable, according to conveyer belt actual length, adjust the tensioning volume.

2. The utility model discloses a control handle rotates and drives rocker and tensioning arm, can be fast convenient tensioning and the lax state of regulation conveyer belt to reach the purpose of quick tensioning and change conveyer belt, improved maintenance and regulation efficiency, do not need adjusting screw when changing the conveyer belt, only need to rotate the handle, after changing the conveyer belt, the twist grip is tensioned;

3. the utility model discloses a part basic layout is in the inside of organism and conveyer belt, and dustproof and waterproof effect obviously promotes, has prolonged the life of relevant part, also has compact structure, saves space's advantage simultaneously.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic top view of a tensioning mechanism of a flexible conveyor belt according to the present invention in a tensioned state;

fig. 2 is a schematic top view of the tension mechanism of the flexible conveyer belt according to the present invention in a relaxed state;

fig. 3 is a side sectional view of the tensioning mechanism of the flexible conveyor belt of the present invention;

FIG. 4 is a schematic view of the connection structure of the limit pin and the handle of the present invention;

fig. 5 is a schematic side view of the structure of the present invention, in which one end of the limit pin is mounted on the limit hole of the adjusting plate;

fig. 6 is a schematic structural view of the special-shaped hole of the present invention.

The device comprises a driven roller 1, a tensioning arm 2, a tensioning shaft 3, a connecting bolt 4, a bolt head 401, a spring 5, an adjusting nut 6, a thin nut 7, a rotary seat 8, a handle 9, a driving roller 10, a rotary sleeve 11, a pressure spring 12, a flat washer 13, a split pin 14, a limiting pin 15, an adjusting disc 16, a clamping groove 17, a special-shaped hole 18, a limiting hole 19, a rocker 20 and an end shaft 21.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

For the sake of clarity, the present invention is an improvement over the prior art, and the basic conditions of the existing flexible conveying device are given here: the two ends of the shafts of the driving roller 10 and the driven roller 1 are located on two side walls of the machine body, the two ends of the shaft of the driving roller 10 are fixed on the two side walls of the machine body, the two ends of the shaft of the driven roller 1 are respectively limited on the two side walls of the machine body in the axial direction, the shaft can slide in the direction along the side walls of the machine body, and the driving roller 10 rotates to drive the flexible conveying belt.

Fig. 1 and 2 show a tensioning mechanism of a flexible conveying belt, which comprises a tensioning shaft 3, a handle 9, a rocker 20, a limiting assembly, two tensioning arms 2 and two connecting bolts 4. One end of the tensioning arm 2 is fixedly connected to two ends of a shaft of the driven roller 1 respectively, the driven roller 1 can rotate freely around a roller shaft of the driven roller, and the other end of the tensioning arm 2 is connected to two ends of the tensioning shaft 3 through shaft sleeves respectively; the tensioning shaft 3 and the rocker 20 are arranged between the driven roller 1 and the driving roller 10 and are sequentially far away from the driven roller 1 and arranged in parallel; handle 9's one end welding is equipped with adjustment disk 16, and handle 9's the other end passes the small circle arc end in the dysmorphism hole 18 of locating the organism lateral wall to with the welding setting of rocking bar 20 straggly, the other end of rocking bar 20 and the welding setting of end axle 21 straggly, end axle 21 is coaxial with handle 9, and end axle 21 penetrates in locating the axle sleeve on the organism, and the effect that the straggly set up is: when the handle 9 is rotated, the rocker 20 has a certain displacement in the horizontal direction; connecting bolt 4 is parallel and the symmetry sets up about the central line of organism both sides wall, connecting bolt 4's bolt head 401 is located one side of tensioning shaft 3, its screw rod passes the opposite side of tensioning shaft 3, be equipped with spring 5 on the screw rod in proper order, adjusting nut 6 and thin nut 7, the bottom of screw rod is connected to gyration seat 8, the cooperation of gyration seat 8 is overlapped and is located on rocker 20, gyration seat 8 can rotate on rocker 20, rocker 20 is when small amplitude rotates like this, connecting bolt 4's screw rod bottom can suitably keep on original horizontal plane, rocker 20 is when the level upwards has the displacement like this, the skew also takes place in the position of screw rod bottom, and then drive tensioning shaft 3 and tensioning arm 2 and take place the displacement in the level upwards. The spring 5 is located between the tensioning shaft 3 and the adjusting nut 6, when the screw rod bottom is displaced, the bolt head 401 and the spring 5 are clamped to drive the tensioning shaft 3 to displace, the deformation amount of the spring 5 is adjusted by screwing the adjusting nut 6, so that the tensioning force of the spring 5 is adjusted, the action of fine adjustment and shock absorption is played when the tensioning shaft 3 is driven to displace, and the position of the adjusting nut 6 is further fixed through the thin nut 7. The limiting component rotates the handle 9, so that when the driven roller 1 is adjusted to a proper position, one end of the limiting component is fixed on the side wall of the machine body, and the other end of the limiting component is inserted into a limiting hole 19 in the adjusting disc 16 in a matching mode according to the adjusting amount of the conveying belt. Rotate through control handle 9 and drive rocker 20 and tensioning arm 2, the tensioning and the lax state of regulation conveyer belt that can be convenient fast to reach the purpose of quick tensioning and change conveyer belt, improved and maintained and regulation efficiency, do not need adjusting screw when changing the conveyer belt, only need rotate the handle, after changing the conveyer belt, rotate the handle and carry out the tensioning can.

Referring to fig. 3, a clamping groove 17 is formed in the other side of the tensioning shaft 3, the outer bottom surface of the clamping groove 17 is connected to the spring 5, and the spring 5, the adjusting nut 6 and the thin nut 7 are sequentially arranged on the screw rod of the connecting bolt 4 after the screw rod penetrates through the clamping groove 17. The clamping groove 17 is made of elastic materials, so that the connection performance of the spring 5 and the outer bottom surface of the clamping groove 17 is better. Preferably, the material of the clamping groove 17 is rubber, because the rubber material has good flexibility.

Referring to fig. 4 and fig. 6, the limiting assembly includes a limiting pin 15, one end of the limiting pin 15 is inserted into a limiting hole 19 on the adjusting disc 16 in a matching manner and fixed by a pin, a connecting seat is arranged on the side wall of the machine body in a matching manner, a rotary sleeve 11 is installed in the connecting seat, and after the other end of the limiting pin 15 penetrates through the rotary sleeve 11, a pressure spring 12, a flat washer 13 and a cotter 14 are sequentially arranged on the exposed part of the other end of the limiting pin 15. The functions of the pressure spring 12, the flat washer 13 and the split pin 14 are to prevent the limiting pin 15 from loosening in the use process, so that a stable tensioning state is formed. Different limiting holes 19 are inserted into the adjusting disc through the matching of the limiting pin 15, and when the handle is rotated, the distance between the driven roller and the driving roller can be adjusted in multiple stages, so that the tension degree of the conveying belt is adjusted, the multiple-stage adjustment of the tension degree is realized, and the tensioning amount is adjusted according to the actual length of the conveying belt.

Referring to fig. 5, two rings of limiting holes 19 are arranged on the disc surface of the adjusting disc 16 around the disc center, and the limiting holes 19 are uniformly distributed around the disc center in a circumferential manner.

The utility model discloses a theory of operation does: when the flexible conveying belt tensioning device is used, the handle 9 is pulled to drive the rocker 20 to rotate to the position shown in the figure 1, the connecting bolt 4, the tensioning shaft 3, the tensioning arm 2 and the driven roller 1 are sequentially driven to displace, so that the flexible conveying belt is adjusted to a proper tensioning amount, the limiting pin 15 is inserted into the limiting hole 19 in the position of the adjusting disc 16 and is inserted into different limiting holes 19 in the adjusting disc 16 in a matching manner through the limiting pin, when the handle 9 is rotated, the distance between the driven roller 1 and the driving roller 10 can be adjusted in multiple stages, and the limiting pin 15 forms a stable tensioning state in the using process under the action of the pressure spring 12, the flat washer 13 and the split pin 14; when the conveying belt needs to be adjusted and replaced, the limiting pin 15 is separated from the adjusting disc, the handle is pulled to be welded 9, other parts follow up and then reach the state shown in fig. 2, and the conveying belt is in a loose state, so that the maintenance and replacement are convenient.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (5)

1. The utility model provides a straining device of flexible conveyer belt which characterized in that: the method comprises the following steps:

one end of each tensioning arm (2) is fixedly connected to two ends of a shaft of the driven roller (1), and the other end of each tensioning arm (2) is connected to two ends of the tensioning shaft (3) through shaft sleeves;

the tensioning device comprises a tensioning shaft (3) and a rocker (20), wherein the tensioning shaft (3) and the rocker (20) are arranged between a driven roller (1) and a driving roller (10) and are sequentially far away from the driven roller (1) and arranged in parallel;

the device comprises a handle (9), wherein an adjusting disc (16) is welded at one end of the handle (9), the other end of the handle (9) penetrates through a small arc end of a special-shaped hole (18) formed in the side wall of the machine body and is welded with a rocker (20) in a staggered manner, the other end of the rocker (20) is welded with an end shaft (21) in a staggered manner, the end shaft (21) is coaxial with the handle (9), and the end shaft (21) penetrates into a shaft sleeve formed in the machine body;

the connecting bolts (4) are arranged in parallel and symmetrically relative to the central line of two side walls of the machine body, the bolt heads (401) of the connecting bolts (4) are positioned on one side of the tensioning shaft (3), the screw rods of the connecting bolts penetrate through the other side of the tensioning shaft (3), springs (5), adjusting nuts (6) and thin nuts (7) are sequentially arranged on the screw rods, the bottoms of the screw rods are connected to a rotary seat (8), and the rotary seat (8) is sleeved on a rocker (20) in a matching mode;

and when the handle (9) is rotated to adjust the driven roller (1) to a proper position, one end of the limiting component is fixed on the side wall of the machine body, and the other end of the limiting component is inserted into a limiting hole (19) in the adjusting disc (16) in a matching manner according to the adjustment amount of the conveying belt.

2. The tensioning mechanism for a flexible conveyor belt according to claim 1, characterized in that: the limiting assembly comprises a limiting pin (15), one end of the limiting pin (15) is inserted into a limiting hole (19) in the adjusting disc (16) in a matched mode and fixed through a pin shaft, a connecting seat is arranged on the side wall of the machine body in a matched mode, a rotary sleeve (11) is installed in the connecting seat, and after the other end of the limiting pin (15) penetrates through the rotary sleeve (11), a pressure spring (12), a flat washer (13) and a split pin (14) are sequentially arranged on the exposed portion of the other end of the limiting pin.

3. The tensioning mechanism for a flexible conveyor belt according to claim 2, characterized in that: two rings of limiting holes (19) are arranged on the disc surface of the adjusting disc (16) around the disc center, and the limiting holes (19) are uniformly distributed around the disc center in a circumferential manner.

4. The tensioning mechanism for a flexible conveyor belt according to any one of claims 1 to 3, characterized in that: the opposite side of tensioning axle (3) is equipped with draw-in groove (17), the outer bottom surface of draw-in groove (17) is connected in spring (5), after the screw rod of connecting bolt (4) passed draw-in groove (17), be equipped with spring (5), adjusting nut (6) and thin nut (7) on it in proper order.

5. The tensioning mechanism for a flexible conveyor belt according to claim 4, wherein: the clamping groove (17) is made of elastic materials.

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