CN220885751U - High-strength tensioning device - Google Patents

Abstract

The application discloses a high-strength tensioning device, which belongs to the technical field of tensioning mechanisms and is used for providing a high-strength tensioning device with better working stability. The utility model discloses an additionally dispose a guide structure for tensioning assembly, effectively dispersed the reaction force that tensioning assembly received when exerting powerful tensioning force for tensioning assembly can guarantee self structural stability when outwards exporting higher tensioning force, thereby ensures its job stabilization nature.

Description

High-strength tensioning device

Technical Field

The application relates to the technical field of tensioning mechanisms, in particular to a high-strength tensioning device.

Background

In mechanical devices, structures such as belts, conveyor belts and even processed long sheet products are often used, which are required to be tensioned to move stably, and in view of the limited strength of the tensioned belts themselves, the tensioning force provided by existing tensioning devices is not so high as long as it is achieved that the conveying direction is kept straight, while for some materials with relatively high density and wide belts themselves, the tensioning force provided by conventional tensioning devices may not be capable of keeping the belts flat, and the belts are more threatening to the structural stability of the tensioning device.

Disclosure of Invention

The application aims to provide a high-strength tensioning device with better working stability.

To achieve the above object, the present application provides a high strength tensioner: the device comprises a base, the upper surface of base is provided with the frame, the base is still in the both sides of frame are provided with the pedestal respectively, all rotate on every pedestal and be connected with the guide roll, the base is in the below of frame is provided with hydraulic telescoping rod, hydraulic telescoping rod's last expansion end fixedly connected with bracket, be provided with tensioning assembly on the bracket, tensioning assembly's both ends pass the bracket with the frame cooperation constitutes the pair of sliding, tensioning assembly include for bracket pivoted application of force cylinder is suitable for two the cooperation guide roll tensioning membrane that straightens, the tensioning membrane is followed the guide roll below of one side is walked around, is followed again the top of application of force cylinder is walked around, and is followed at last the side the below of guide roll is walked around, under the restraint effect of guide roll, the application of force roll can exert effort for the tensioning membrane better.

Preferably, the frame comprises a pair of symmetrical guide rails, sliding grooves are formed in the side walls of the guide rails, the tensioning assembly further comprises a main shaft, the force application roller is sleeved on the main shaft to form a revolute pair, two ends of the main shaft are fixedly connected with sliding blocks, the sliding blocks are suitable for being matched with the two sliding grooves to form a sliding pair respectively, an auxiliary supporting effect is provided for the tensioning assembly, the movement stability of the tensioning assembly is improved, acting forces possibly received by the components are dispersed, and the structural strength of the whole tensioning device is improved.

Preferably, the two ends of the main shaft extend to the end face of the force application roller, and are fixedly connected with a baffle ring, the sliding block is fixedly connected with the baffle ring through an end shaft, and the end shaft is matched with the bracket to bear upward lifting force of the bracket.

Preferably, the bracket comprises a supporting plate, two ends of the supporting plate are provided with ear plates extending upwards, the ear plates are provided with shaft holes with inner and outer side walls penetrating through, the end shafts penetrate through the ear plates, the end shafts can rotate relative to the ear plates, and the end shafts only need to rotate when the matching direction of the sliding blocks and the sliding grooves needs to be adjusted.

Preferably, the upper surface of the supporting plate is fixedly connected with a reinforcing plate, the reinforcing plate is located below the force application roller and used for improving bending resistance of the supporting plate, and when the hydraulic telescopic rod provides strong upward lifting force, the supporting plate can still keep a straight state.

As one preferable mode, the lower ends of the guide rails are fixedly connected with the base through the supporting table, and the upper ends of the two guide rails are fixedly connected with the same cross beam, so that the frame is ensured to have good structural stability.

Preferably, the guide roller and the force application roller have flange structures with larger diameters on the side surfaces close to two ends, the length between the flanges at two ends of the guide roller is equal to the length between the flanges at two ends of the force application roller, and the width of the guide roller and the width of the force application roller are approximately consistent with the width of the guide roller and the width of the guide roller, so that limiting and guiding effects are provided.

Preferably, the cross section of the sliding block is T-shaped, the cross section of the sliding groove on the guide rail is also T-shaped, and the formed sliding pair has good contact stability.

Compared with the prior art, the application has the beneficial effects that:

(1) By additionally arranging the guide structure for the tensioning assembly, the reaction force born by the tensioning assembly when strong tensioning force is applied is effectively dispersed, the compression resistance of the tensioning assembly is improved, the tensioning assembly can output higher tensioning force outwards and simultaneously ensure the structural stability of the tensioning assembly, so that the working stability is ensured, and the tensioning device has higher structural strength;

(2) The structure of the tensioning device has good symmetry, the stress can be more balanced during working, the structure is not complex, the use and maintenance are convenient, the use cost of the whole device is low, and the service life is long.

Drawings

FIG. 1 is a schematic illustration of the passage of a tensioning membrane of the high strength tensioning device;

FIG. 2 is a perspective view of the overall construction of the high strength tensioner;

FIG. 3 is a schematic perspective view of the high strength tensioner with one guide roller removed;

FIG. 4 is a schematic perspective view of the bracket of the high strength tensioner mated with a frame;

FIG. 5 is a schematic perspective view of the tensioning assembly of the high strength tensioning device mated with a bracket;

FIG. 6 is a schematic perspective view of a tensioning assembly of the high strength tensioning device;

FIG. 7 is a perspective view of the main shaft and two end structures of the high strength tensioner;

fig. 8 is a perspective structural cross-sectional view of the bracket of the high strength tensioner mated with a hydraulic telescoping rod.

In the figure: 1. a base; 2. a frame; 201. a cross beam; 202. a support; 203. a guide rail; 204. a chute; 3. a shaft bracket; 4. a guide roller; 5. a bracket; 501. a supporting plate; 502. a reinforcing plate; 503. ear plates; 504. a shaft hole; 6. a tensioning assembly; 601. a force application roller; 602. a slide block; 603. an end shaft; 604. a baffle ring; 605. a main shaft; 7. a hydraulic telescopic rod; 8. tensioning the membrane.

Detailed Description

The present application will be further described with reference to the following specific embodiments, and it should be noted that, on the premise of no conflict, new embodiments may be formed by any combination of the embodiments or technical features described below.

In the description of the present application, it should be noted that, for the azimuth words such as terms "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the azimuth and positional relationships are based on the azimuth or positional relationships shown in the drawings, it is merely for convenience of describing the present application and simplifying the description, and it is not to be construed as limiting the specific scope of protection of the present application that the device or element referred to must have a specific azimuth configuration and operation.

It should be noted that the terms "first," "second," and the like in the description and in the claims are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order.

The terms "comprises" and "comprising," along with any variations thereof, in the description and claims, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

The high-strength tensioning device as shown in fig. 1-8, including the base 1 that is located the below, the upper surface of base 1 is provided with frame 2 for restraint motion, and base 1 is provided with hydraulic telescoping rod 7 in the below of frame 2, can provide great effort, and hydraulic telescoping rod 7's last active end fixedly connected with bracket 5 is provided with tensioning assembly 6 on the bracket 5, realizes the main part of tensioning, and the both ends of tensioning assembly 6 pass bracket 5 and frame 2 cooperation constitution slip pair, specifically: the frame 2 comprises a pair of symmetrical guide rails 203, plays a guiding role in position adjustment, the side walls of the guide rails 203 are provided with sliding grooves 204, the tensioning assembly 6 comprises a main shaft 605, two ends of the main shaft 605 are fixedly connected with sliding blocks 602, the cross section of each sliding block 602 is T-shaped, on the other hand, the cross section of each sliding groove 204 formed in the guide rail 203 is also T-shaped, therefore, the two sliding blocks 602 can be matched with the two sliding grooves 204 to form a sliding pair, the T-shaped sliding blocks 602 are matched with the sliding grooves 204, good contact stability can be achieved, accordingly, the stability of lifting movement of the tensioning assembly 6 under the driving of the hydraulic telescopic rod 7 can be improved, the lower ends of the guide rails 203 are fixedly connected with the same cross beam 201 through the supporting table 202 and the base 1, the upper ends and the lower ends of the guide rails 203 are both restrained, good stability is achieved, and the thickness of the tensioning assembly is enough to keep good flatness.

The tensioning assembly 6 further comprises a force application roller 601 which rotates relative to the bracket 5, the force application roller 601 is sleeved on the main shaft 605 to form a revolute pair, the degree of freedom of the force application roller 601 is limited, two ends of the main shaft 605 extend to the end face of the force application roller 601, a baffle ring 604 is fixedly connected, the movement of the force application roller 601 on the main shaft 605 is restrained, the stability of the force application roller 601 during following rotation is improved, the sliding block 602 is fixedly connected with the baffle ring 604 through an end shaft 603, in fact, the sliding block 602, the end shaft 603, the baffle ring 604 and the main shaft 605 are of an integrated structure, the end shaft 603 is matched with the bracket 5, the end shaft 603 can rotate relative to the bracket 5, so that the direction of the sliding block 602 can be adjusted, when one side is worn seriously, the other side is enabled to continuously and stably work by 180 degrees, the sliding block 602 is correspondingly prolonged, the bracket 5 comprises 501, the 501 and the upper end of the hydraulic telescopic rod 7 are fixedly connected, the upper surface of the sliding block 501 is fixedly connected with a reinforcing plate 502, the structural strength of the supporting plate is improved, the bending resistance of the supporting plate is improved, the reinforcing plate is positioned below the lug 501, the two side plates need to extend vertically, the two side walls of the sliding block 503 are not to be in a perpendicular mode, and the right side wall 503 is required to rotate, the side wall of the sliding plate is required to be in a perpendicular mode, and the two side walls of the side wall 503 need to rotate, and the side of the sliding plate is not to be in a perpendicular to rotate, and the side of the sliding plate is required to rotate.

The base 1 is further provided with shaft brackets 3 on two sides of the frame 2, each shaft bracket 3 is rotationally connected with a guide roller 4, in this embodiment, the guide rollers 4 do not need to be provided with a driving mechanism, the guide rollers 4 can adaptively rotate along with a tensioned object, the force application rollers 601 are matched with the two guide rollers 4 to straighten the tensioning film 8, in order to prevent the tensioning film 8 from moving on the sides of the rollers, the sides of the guide rollers 4 and the force application rollers 601 close to two ends are provided with flange structures with larger diameters, the tensioning film 8 has a certain thickness, wrinkles are not prone to occurring, the flange structures can well limit two sides of the tensioning film 8, the tensioning film 8 is kept in a stable position, the length between flanges at two ends of the guide rollers 4 is equal to the length between flanges at two ends of the force application rollers 601, and is slightly larger than the width of the tensioning film 8, the sides of the tensioning film 8 are not only guaranteed to be scratched with the flanges, but also the flange structures are guaranteed to play an effective limiting role on the tensioning film 8.

Working principle: in operation, the tensioning film 8 bypasses from below the guide roller 4 on one side, bypasses from above the force application roller 601, and bypasses from below the guide roller 4 on the other side, two hydraulic telescopic rods 7 are generally arranged, the force application roller 601 is propped upwards through strong hydraulic force, the tensioning film 8 bypassing the roller is pulled to be very straight and very tight, and the bracket 5 is restrained by the guide structure of the frame 2, so that the tensioning device can keep stable even if high-strength tensioning force is applied, and the tensioning film 8 suitable for the tensioning device needs to have a certain thickness and relatively high tensile strength.

The foregoing has outlined the basic principles, features, and advantages of the present application. It will be understood by those skilled in the art that the present application is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present application, and various changes and modifications may be made therein without departing from the spirit and scope of the application, which is defined by the appended claims. The scope of the application is defined by the appended claims and equivalents thereof.

Claims (8)

1. A high strength tensioner characterized by: including base (1), the upper surface of base (1) is provided with frame (2), base (1) is still in the both sides of frame (2) are provided with pedestal (3) respectively, all rotate on every pedestal (3) and are connected with guide cylinder (4), base (1) are in the below of frame (2) is provided with hydraulic telescoping rod (7), the last expansion end fixedly connected with bracket (5) of hydraulic telescoping rod (7), be provided with tensioning assembly (6) on bracket (5), the both ends of tensioning assembly (6) pass bracket (5) with frame (2) cooperation constitutes the pair of sliding, tensioning assembly (6) include for bracket (5) pivoted application of force cylinder (601), be suitable for two of cooperation guide cylinder (4) tensioning membrane (8) straighten, tensioning membrane (8) are followed guide cylinder (4) below of one side and are walked around again from the top of application of force cylinder (601), finally follow below guide cylinder (4) of opposite side is walked around.

2. The high strength tensioner as in claim 1, wherein: the machine frame (2) comprises a pair of symmetrical guide rails (203), sliding grooves (204) are formed in the side walls of the guide rails (203), the tensioning assembly (6) further comprises a main shaft (605), the force application roller (601) is sleeved on the main shaft (605) to form a revolute pair, and two ends of the main shaft (605) are fixedly connected with sliding blocks (602) and are suitable for being matched with the two sliding grooves (204) to form a sliding pair.

3. The high strength tensioner as in claim 2, wherein: the two ends of the main shaft (605) extend to the end face of the force application roller (601) and are fixedly connected with a baffle ring (604), the sliding block (602) is fixedly connected with the baffle ring (604) through an end shaft (603), and the end shaft (603) is matched with the bracket (5).

4. A high strength tensioner according to claim 3, wherein: the bracket (5) comprises a supporting plate (501), two ends of the supporting plate (501) are provided with lug plates (503) extending upwards, and the lug plates (503) are provided with shaft holes (504) with inner and outer side walls penetrating through, so that the end shafts (603) can pass through.

5. The high strength tensioner as in claim 4, wherein: the upper surface of layer board (501) is fixedly connected with reinforcing plate (502), reinforcing plate (502) are located force application cylinder (601) below.

6. The high strength tensioner as in claim 5, wherein: the lower ends of the guide rails (203) are fixedly connected with the base (1) through the supporting table (202), and the upper ends of the two guide rails (203) are fixedly connected with the same cross beam (201).

7. A high strength tensioner as claimed in any one of claims 2 to 6, wherein: the guide roller (4) and the force application roller (601) are provided with flange structures with larger diameters on the side surfaces close to two ends, and the length between the flanges at the two ends of the guide roller (4) is equal to the length between the flanges at the two ends of the force application roller (601).

8. The high strength tensioner as in claim 7, wherein: the cross section of the sliding block (602) is T-shaped, and the cross section of the sliding groove (204) on the guide rail (203) is also T-shaped.