CN212126539U - Belt tensioning device and belt conveyor of cantilever type bucket-wheel stacker-reclaimer - Google Patents
Belt tensioning device and belt conveyor of cantilever type bucket-wheel stacker-reclaimer Download PDFInfo
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- CN212126539U CN212126539U CN202020288793.2U CN202020288793U CN212126539U CN 212126539 U CN212126539 U CN 212126539U CN 202020288793 U CN202020288793 U CN 202020288793U CN 212126539 U CN212126539 U CN 212126539U
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Abstract
The utility model relates to the technical field of large-scale dry bulk cargo loading and unloading, in particular to a belt tensioning device, which comprises a supporting seat, a telescopic driving mechanism and a turnabout drum, wherein the supporting seat is provided with a chute, and a sliding block is arranged in the chute in a sliding way; the telescopic driving mechanism is arranged on the supporting seat and drives the sliding block to slide in the sliding groove when the telescopic driving mechanism is telescopic; the turnabout drum is used for tensioning a transmission belt, the movement direction of the turnabout drum is perpendicular to the movement direction of the sliding blocks, the end parts of the turnabout drum are connected with the sliding blocks through connecting rods, the first end part of each connecting rod is hinged with one sliding block, the second end part of each connecting rod is hinged with one end part of the turnabout drum, and the included angle a between the tensioning direction of the turnabout drum and each connecting rod is smaller than 45 degrees; a belt conveyor of a cantilever type bucket-wheel stacker reclaimer comprises the belt tensioning device. The utility model discloses a horizontal flexible realization driven roll of hydro-cylinder reciprocates to reach the effect of belt tensioning, belt tensioning device has light in weight, the little effect of hydro-cylinder pressure.
Description
Technical Field
The utility model relates to a large-scale dry bulk cargo loading and unloading technical field, concretely relates to belt tightener and cantilever type bucket-wheel stacker-reclaimer's belt conveyor.
Background
The belt tensioning mode of the traditional cantilever type bucket-wheel stacker reclaimer adopts a heavy hammer type, and the weight of the heavy hammer is several tons or even more than ten tons, so that higher requirements are provided for the strength of a steel structure.
The belt tensioning device in the prior art also adopts a hydraulic tensioning device, but generally adopts a hydraulic cylinder to directly push and pull a belt bend pulley, and realizes the equidirectional movement of the bend pulley through the stretching of the cylinder, thereby achieving the effect of tensioning the belt.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the problem that above-mentioned exists with not enough, provide a belt conveyor of belt overspeed device tensioner and cantilever type bucket-wheel stacker reclaimer, it realizes reciprocating of driven roll through the horizontal flexible of hydro-cylinder to reach the effect of belt tensioning, when tensile force F is the definite value, hydro-cylinder thrust F1's computational formula is: f1= F star tan, design contained angle a is less than 45 degrees, and at this moment, F1 is less than F's size, and when the tensioning, the angle of a diminishes, and F1 value diminishes, so the utility model provides a belt tensioner has light in weight, the little effect of hydro-cylinder pressure.
In order to realize the purpose of the utility model, the technical proposal of the utility model is that:
a belt tensioning device comprises a supporting seat, a telescopic driving mechanism and a turnabout drum, wherein a sliding groove is formed in the supporting seat, and a sliding block is arranged in the sliding groove in a sliding manner; the telescopic driving mechanism is arranged on the supporting seat and drives the sliding block to slide in the sliding groove when being telescopic; the turnabout drum is used for tensioning a transmission belt, the moving direction of the turnabout drum is perpendicular to the moving direction of the sliding blocks, the end portions of the turnabout drum are connected with the sliding blocks through connecting rods, the first end portion of each connecting rod is hinged with one sliding block, the second end portion of each connecting rod is hinged with one end portion of the turnabout drum, and the included angle a between the tensioning direction of the turnabout drum and the connecting rods is smaller than 45 degrees.
Further, in the above belt tensioner, the direction-changing drum is located at a lower portion of the support base.
Further, in the above belt tensioner, each end of the bend pulley is hinged with two connecting rods symmetrically arranged relative to the bend pulley.
Further, in the above belt tensioner, two sliding grooves are respectively disposed on two sides of the supporting seat, and first end portions of two connecting rods located at each end of the direction-changing drum are respectively hinged to the sliding blocks on two sides of the supporting seat.
Further, in the above belt tensioner, the slider is provided as a cylindrical slider.
Further, in the above belt tensioner, the first end of the connecting rod is two symmetrical hinged joints branched from the second end, and the two hinged joints are respectively hinged to two ends of the cylindrical sliding block.
Further, in the above belt tensioning device, the sliding groove includes support blocks at two sides, and an upper sliding frame and a lower sliding frame connected between the support blocks at two sides, the support blocks are fixedly connected to the support seats, and the sliding block is slidably connected between the upper sliding frame and the lower sliding frame.
Further, in the belt tensioning device, the telescopic driving mechanism is a hydraulic oil cylinder, one end of the hydraulic oil cylinder is hinged to the supporting seat, the other end of the hydraulic oil cylinder is connected with the middle of the sliding block, and avoidance grooves along the length direction are formed in the middle of the inner sides of the upper sliding frame and the lower sliding frame.
Further, in the above belt tensioner, each end of the direction-changing drum is connected to a connecting rod, and two ends of the direction-changing drum are slidably connected to a slideway, which is fixedly arranged.
A belt conveyor for a cantilevered bucket-wheel stacker reclaimer, comprising a belt tensioner as described in any one of the preceding claims.
The utility model discloses a belt tensioning device and cantilever type bucket-wheel stacker reclaimer's belt conveyor's beneficial effect:
the utility model discloses a belt tensioning device, simple structure, convenient to use, it realizes reciprocating of driven roll through the horizontal flexible of hydro-cylinder to reach belt tensioning's effect, when tensile force F is the definite value, hydro-cylinder thrust F1's computational formula is: f1= F star tan a, design contained angle a is less than 45 degrees, and at this moment, F1 is less than the size of F, and when the tensioning, the angle of a diminishes, and F1 value diminishes, so the utility model provides a belt tensioner has light in weight, and the effect that hydro-cylinder pressure is little, and it is also lower to the requirement of steel construction intensity simultaneously; the utility model discloses a belt conveyor of cantilever type bucket-wheel stacker reclaimer is connected with aforementioned belt tightener on it, can make things convenient for the tensioning belt, and requires for a short time hydraulic cylinder's pressure, hydraulic cylinder's with low costs.
Drawings
Fig. 1 is a schematic perspective view of a belt tensioner according to an embodiment of the present invention.
Fig. 2 is a front view schematic diagram of a belt tensioner according to an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of the connection of the chute and the hydraulic oil cylinder according to the embodiment of the present invention.
Fig. 4 is a schematic structural view of connection between the direction-changing drum and the connecting rod according to the embodiment of the present invention.
Fig. 5 is a schematic structural diagram of a closed triangle of forces formed by the tension force applied to the roller, the thrust force of the hydraulic oil cylinder and the stress of the connecting rod according to the embodiment of the present invention.
Fig. 6 is a schematic structural view of a belt conveyor of a cantilever-type bucket-wheel stacker-reclaimer according to an embodiment of the present invention.
In the figure: 100 is a belt tensioner, 101 is a support base, 102 is a hydraulic cylinder, 103 is a direction-changing roller, 104 is a slider, 105 is a link, 106 is a support block, 107 is an upper bracket, 108 is a lower bracket, 200 is a belt, and 300 is a guide roller.
Detailed Description
A belt tensioner according to the present invention will be described in more detail below with reference to the accompanying drawings and by way of specific embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships 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 being 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.
Referring to fig. 1 to 6, the embodiment discloses a belt tensioning device, which includes a supporting seat, a telescopic driving mechanism and a bend pulley, wherein the supporting seat is provided with a chute, and a sliding block is slidably arranged in the chute; the telescopic driving mechanism is arranged on the supporting seat and drives the sliding block to slide in the sliding groove when the telescopic driving mechanism is telescopic; the turnabout drum is used for tensioning a transmission belt, a bearing of the turnabout drum is built-in, the moving direction of the turnabout drum is perpendicular to the moving direction of the sliding blocks, the end portions of the turnabout drum are connected with the sliding blocks through connecting rods, the first end portion of each connecting rod is hinged with one independent sliding block, the second end portion of each connecting rod is hinged with one end portion of the turnabout drum, and the included angle a between the tensioning direction of the turnabout drum and the connecting rods is smaller than 45 degrees.
In this embodiment, preferably, the bend drum is located at the lower portion of the support seat, so that the connecting rod can apply force to the bend drum conveniently, meanwhile, the connecting rod does not need to bear the dead weight of the bend drum any more, each end of the bend drum is hinged with two connecting rods symmetrically arranged relative to the bend drum, the two connecting rods are symmetrically arranged on two sides of the bend drum, and downward resultant force of four connecting rods at two ends of the bend drum to the bend drum forms the tension of the bend drum to the belt.
The belt tensioning device in this embodiment can realize the reciprocating of driven pulley through the horizontal flexible of hydro-cylinder to reach the effect of belt tensioning, as shown in the figure, according to the closed triangle rule of power, can release the closed triangle that the forced of driven pulley receives the tensile force, the thrust of flexible actuating mechanism and the atress of connecting rod can constitute power, and when tensile force F was the definite value, hydro-cylinder thrust F1's computational formula was: f1= F star tan a, design contained angle a is less than 45 degrees, and at this moment, F1 is less than F's size, and when the tensioning, the angle of a diminishes, and F1 value diminishes, so the utility model provides a belt tensioning device has light in weight, and the effect that cylinder pressure is little, and the requirement is also lower to steel construction intensity simultaneously.
In this embodiment, preferably, two sides of the supporting seat are respectively provided with a sliding chute, and the first end portions of the two connecting rods at each end of the direction-changing drum are respectively hinged with the sliding blocks at two sides of the supporting seat, so that one supporting seat can be uniformly arranged.
In this embodiment, preferably, the slider is provided as a cylindrical slider, an axis of the cylindrical slider is perpendicular to a length direction of the chute, and the cylindrical slider is not easily stuck in a sliding process.
On the basis of above-mentioned scheme, more preferably, the first end of connecting rod is two symmetrical slice articulated joints of following the second end branch, and the both ends protrusion spout of cylindrical slider, two articulated joints articulate respectively at the both ends of cylindrical slider, make the both ends of cylindrical slider not with spout inside contact, only its face of cylinder and spout contact, have further avoided cylindrical slider to be dead by the card.
In this embodiment, specifically, the sliding groove includes support blocks on two sides, and an upper sliding frame and a lower sliding frame connected between the support blocks on two sides, where the support blocks are fixedly connected to the support base, and the sliding block is slidably connected between the upper sliding frame and the lower sliding frame. Flexible actuating mechanism is hydraulic cylinder, hydraulic cylinder's one end is through round pin axle articulated connection on the supporting seat, hydraulic cylinder's articulated direction can allow hydraulic cylinder to rock from top to bottom, hydraulic cylinder's the other end is connected with the middle part of slider, hydraulic cylinder's fixed cylinder still passes the guiding hole on the supporting shoe, the aperture of guiding hole is greater than the external diameter of fixed cylinder, the inboard middle part of going up balladeur train and lower balladeur train all is equipped with along length direction dodges the recess, dodge the recess and be used for dodging slider and hydraulic cylinder's handing.
In another embodiment (not shown in the figures), each end of the bend drum can be connected with a connecting rod, two ends of the bend drum are connected in a vertical slideway in a sliding mode, the vertical slideway is fixedly arranged, and the bend drum is driven to move up and down only by the two connecting rods at two ends of the bend drum.
The embodiment also discloses a belt conveyor of the cantilever type bucket-wheel stacker-reclaimer, which comprises a belt, two guide rollers and the belt tensioning device, wherein the belt forms a downward U-shaped bend at a certain position through the two guide rollers and the signed bend-changing rollers. According to the belt conveyor of the cantilever type bucket-wheel stacker reclaimer, the belt tensioning device is connected onto the belt conveyor, so that a belt can be conveniently tensioned, the pressure requirement on a hydraulic oil cylinder is low, and the cost of the hydraulic oil cylinder is low.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the description and in the claims does not indicate any order, quantity, or importance, but rather is used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not necessarily denote a limitation of quantity. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect.
The exemplary embodiments of the present invention have been described in detail with reference to the preferred embodiments, however, it will be understood by those skilled in the art that various modifications and changes may be made to the specific embodiments without departing from the concept of the present invention, and various combinations of the technical features and structures of the present invention may be implemented without departing from the scope of the present invention.
Claims (10)
1. A belt tensioner, comprising:
the supporting seat is provided with a sliding chute, and a sliding block is arranged in the sliding chute in a sliding manner;
the telescopic driving mechanism is arranged on the supporting seat and drives the sliding block to slide in the sliding groove when being stretched; and
the direction-changing drum is used for tensioning a transmission belt, the moving direction of the direction-changing drum is perpendicular to the moving direction of the sliding blocks, the end portion of the direction-changing drum is connected with the sliding blocks through connecting rods, the first end portion of each connecting rod is hinged with one sliding block, the second end portion of each connecting rod is hinged with one end portion of the direction-changing drum, and the included angle a between the tensioning direction of the direction-changing drum and the connecting rods is smaller than 45 degrees.
2. A belt tensioner as claimed in claim 1, wherein the direction-changing pulley is located at a lower portion of the support base.
3. The belt tensioner as in claim 1, wherein each end of the direction-changing drum is hinged with two links symmetrically disposed with respect to the direction-changing drum.
4. A belt tensioner according to claim 3, wherein a sliding slot is provided on each side of the support base, and the first ends of the two links at each end of the direction-changing drum are respectively hinged to the sliding blocks on each side of the support base.
5. A belt tensioner according to claim 1, in which the slider is provided as a cylindrical slider.
6. A belt tensioner according to claim 5, wherein the first end of the link is provided with two symmetrical hinged joints branching from the second end, and the two hinged joints are respectively hinged to two ends of the cylindrical slider.
7. The belt tensioner as in claim 1, wherein the track comprises two side support blocks and an upper carriage and a lower carriage connected between the two side support blocks, the support blocks being fixedly connected to the support base, the slider being slidably connected between the upper carriage and the lower carriage.
8. The belt tensioner as claimed in claim 7, wherein the telescopic driving mechanism is a hydraulic cylinder, one end of the hydraulic cylinder is hinged to the supporting seat, the other end of the hydraulic cylinder is connected to the middle of the sliding block, and the middle parts of the inner sides of the upper carriage and the lower carriage are provided with an avoiding groove along the length direction.
9. The belt tensioner as in claim 1, wherein a connecting rod is connected to each end of the direction-changing drum, and both ends of the direction-changing drum are slidably connected to a slide rail, and the slide rail is fixedly disposed.
10. A belt conveyor of a cantilevered bucket-wheel stacker reclaimer, comprising the belt tensioner of any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020288793.2U CN212126539U (en) | 2020-03-11 | 2020-03-11 | Belt tensioning device and belt conveyor of cantilever type bucket-wheel stacker-reclaimer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020288793.2U CN212126539U (en) | 2020-03-11 | 2020-03-11 | Belt tensioning device and belt conveyor of cantilever type bucket-wheel stacker-reclaimer |
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| CN212126539U true CN212126539U (en) | 2020-12-11 |
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| CN202020288793.2U Active CN212126539U (en) | 2020-03-11 | 2020-03-11 | Belt tensioning device and belt conveyor of cantilever type bucket-wheel stacker-reclaimer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111361934A (en) * | 2020-03-11 | 2020-07-03 | 华电曹妃甸重工装备有限公司 | Belt tensioning device and belt conveyor of cantilever type bucket-wheel stacker-reclaimer |
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2020
- 2020-03-11 CN CN202020288793.2U patent/CN212126539U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111361934A (en) * | 2020-03-11 | 2020-07-03 | 华电曹妃甸重工装备有限公司 | Belt tensioning device and belt conveyor of cantilever type bucket-wheel stacker-reclaimer |
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