CN114229349B - Tensioning device and rubber belt conveyor - Google Patents
Tensioning device and rubber belt conveyor Download PDFInfo
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- CN114229349B CN114229349B CN202210002775.7A CN202210002775A CN114229349B CN 114229349 B CN114229349 B CN 114229349B CN 202210002775 A CN202210002775 A CN 202210002775A CN 114229349 B CN114229349 B CN 114229349B
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- telescopic piece
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- chain wheel
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- 238000004904 shortening Methods 0.000 claims abstract description 5
- 230000005540 biological transmission Effects 0.000 claims description 37
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 230000000712 assembly Effects 0.000 claims 1
- 238000000429 assembly Methods 0.000 claims 1
- 239000002390 adhesive tape Substances 0.000 abstract description 19
- 230000008602 contraction Effects 0.000 description 4
- 238000004146 energy storage Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003405 preventing effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000004606 Fillers/Extenders Substances 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G23/00—Driving gear for endless conveyors; Belt- or chain-tensioning arrangements
- B65G23/44—Belt or chain tensioning arrangements
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Abstract
The embodiment of the invention discloses a tensioning device and an adhesive tape conveyor, wherein the tensioning device comprises a telescopic component, a frame body, a roller and a stroke increasing component, the telescopic component comprises a first telescopic piece and a second telescopic piece, the first telescopic piece is connected with the second telescopic piece, the second telescopic piece can move along the length direction of the first telescopic piece to realize the extension or shortening of the telescopic component, the roller is connected with the frame body, the roller can rotate around the axis of the roller, the stroke increasing component is connected with the second telescopic piece and the frame body, when the second telescopic piece moves, the stroke increasing component drives the frame body to move relative to the second telescopic piece, and the movement direction of the frame body relative to the second telescopic piece is the same as that of the second telescopic piece. The tensioning device provided by the embodiment of the invention has the advantages of small occupied space, large tensioning effective stroke and simplicity and convenience in operation.
Description
Technical Field
The invention relates to the technical field of material conveying equipment, in particular to a tensioning device and a rubber belt conveyor.
Background
In the related art, the tunneling tape machine is mostly transported in a straight line or in a large-radius turning, and the anti-deviation device is mostly provided with an anti-deviation carrier roller, an anti-deviation alarm device and the like. Because the adhesive tape is long in distance and large in tension, the preventing effect of the off-tracking carrier roller mechanism on the adhesive tape is limited, and the long-time off-tracking operation can cause a large amount of abrasion of the adhesive tape, and finally the economic loss of larger stroke is caused. In addition, the adhesive tape in the adhesive tape machine is generally tensioned by a tensioning vehicle, and when the adhesive tape is required to be tensioned, the adhesive tape machine is tensioned by utilizing the tensioning vehicle to pull the tensioning roller, but the tensioning vehicle in the related art occupies a large space, and the effective tensioning stroke is limited.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems in the related art to some extent. For this purpose, embodiments of the invention provide a tensioning device which has the advantages of small space occupation and large tensioning effective stroke.
The embodiment of the invention also provides a rubber belt conveyor.
The tensioning device of the embodiment of the invention comprises:
the telescopic assembly comprises a first telescopic piece and a second telescopic piece, the first telescopic piece is connected with the second telescopic piece, and the second telescopic piece can move along the length direction of the first telescopic piece so as to realize the extension or shortening of the telescopic assembly;
a frame body;
the roller is connected with the frame body and can rotate around the axis of the roller;
the range extending component is connected with the second telescopic piece and the frame body, when the second telescopic piece moves, the range extending component drives the frame body to move relative to the second telescopic piece, and the movement direction of the frame body relative to the second telescopic piece is the same as the movement direction of the second telescopic piece.
The tensioning device provided by the embodiment of the invention has smaller height, occupies small space in the vertical direction, and has the effective stroke which is more than one time of the stroke of the telescopic component through the stroke increasing component. In addition, the whole tensioning operation process of the tensioning device is realized only by the extension and contraction of the extension and contraction component, so that the operation is simpler and more convenient, and the adjusting efficiency is greatly improved.
In some embodiments, the range extension assembly comprises:
the front chain wheel is connected with the second telescopic piece;
the rear chain wheel is connected with the second telescopic piece and is arranged at intervals with the front chain wheel;
the transmission chain is wound on the front chain wheel and the rear chain wheel, and one part of the transmission chain is connected with the frame body;
the base is connected with the transmission chain, and in the length direction of the transmission chain, a space exists between the connection part of the base and the transmission chain and the connection part of the frame body and the transmission chain.
In some embodiments, the front sprocket comprises a first front sprocket and a second front sprocket, the first front sprocket and the second front sprocket being disposed on different sides of the second telescoping member; the rear sprocket comprises a first rear sprocket and a second rear sprocket; the transmission chain comprises a first transmission chain and a second transmission chain; the first front chain wheel, the first rear chain wheel and the first transmission chain are located on the same side of the second telescopic piece, the second front chain wheel, the second rear chain wheel and the second transmission chain are located on the same side of the second telescopic piece, the first transmission chain is wound on the first front chain wheel and the first rear chain wheel, and the second transmission chain is wound on the second front chain wheel and the second rear chain wheel.
In some embodiments, the first telescopic member is a piston rod, the second telescopic member comprises a cylinder body and a bracket, a piston capable of sliding in the cylinder body is arranged in the cylinder body, one end of the piston rod is connected with the piston in the cylinder body, and the front chain wheel and the rear chain wheel are connected with the cylinder body; the bracket is connected with the outside of the cylinder body, and the frame body is connected with the bracket in a sliding way.
In some embodiments, the frame comprises:
the sliding rod is in sliding connection with the second telescopic piece, and one part of the transmission chain is fixedly connected with one end of the sliding rod;
the cross beam is connected with the sliding rod;
a first mounting plate disposed at a first end of the beam,
the second mounting plate is arranged at the second end of the cross beam;
one end of the roller is connected with the first mounting plate, the other end of the roller is connected with the second mounting plate, and the axis of the roller is perpendicular to the length direction of the first telescopic piece.
In some embodiments, the tensioning device further comprises a first guide assembly disposed on a side of the first mounting plate facing away from the roller and a second guide assembly disposed on a side of the second mounting plate facing away from the roller.
In some embodiments, the first guide assembly and the second guide assembly are each composed of a guide wheel, a shaft shoulder is arranged at one end of the guide wheel away from the roller, and the rotating shaft of the guide wheel is parallel to the axis of the roller.
In some embodiments, a first helical blade is wound on the outer peripheral surface of one end of the roller, and a second helical blade is wound on the outer peripheral surface of the other end of the roller, wherein the first helical blade and the second helical blade have opposite rotation directions.
The rubber belt conveyor provided by the embodiment of the invention comprises the tensioning assembly, wherein the tensioning device is the tensioning device in any embodiment, one end of the first telescopic piece, which is far away from the roller, is connected with the rubber belt conveyor body, the base is connected with the rubber belt conveyor body, rubber belts on the rubber belt conveyor body are wound on the roller, and the telescopic assembly stretches or shortens to drive the roller to move along the length direction of the rubber belt conveyor.
The belt conveyor provided by the embodiment of the invention adopts the tensioning device of any embodiment, and the tensioning device occupies smaller space, so that more available space is saved for the belt conveyor body, the miniaturization and the light weight of the belt conveyor are facilitated, and in addition, the tensioning device with a larger effective stroke is also convenient for adjusting the tensioning degree of the belt.
In some embodiments, the adhesive tape conveyor body is provided with a guide slide, the guide wheel is disposed in the guide slide and can roll in the guide slide, and a part of the adhesive tape conveyor body is clamped between the shaft shoulder on the first guide assembly and the shaft shoulder on the second guide assembly.
Drawings
Fig. 1 is a block diagram of a tensioner in a contracted state according to an embodiment of the present invention.
Fig. 2 is a block diagram of a tensioner in an extended state according to an embodiment of the present invention.
Fig. 3 is a structural view of a roller in the tensioning device of the embodiment of the present invention.
Fig. 4 is a block diagram of a belt conveyor according to an embodiment of the present invention.
Fig. 5 is a partially enlarged view at a in fig. 4.
Reference numerals: a telescopic assembly 1; a first telescopic member 11; a second telescopic member 12; a cylinder 121; a bracket 122; a first carriage plate 1221; a second carrier plate 1222; a frame body 2; a slide bar 21; a chute 211; a cross beam 22; a first mounting plate 23; a second mounting plate 24; a drum 3; a drum shaft 31; a first helical blade 32; a second helical blade 33; a range extension assembly 4; a front sprocket 41; a first front sprocket 411; a second front sprocket 412; a rear sprocket 42; a first rear sprocket 421; a transmission chain 43; a first drive chain 431; a second drive chain 432; a base 44; a first guide assembly 5; a second guide assembly 6; a guide wheel 7; a shoulder 71; a rubber belt conveyor body 8; a guide slide 81; an energy storage device 82; an electromagnetic control valve group 83; pin 84.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
The tensioner of the embodiment of the present invention is described below with reference to the accompanying drawings.
Referring to fig. 1 to 3, the tensioning device according to the embodiment of the present invention includes a telescopic assembly 1, a frame 2, a roller 3, and a range extender 4, and the positional relationship and assembly relationship of the above components are described in detail below.
The telescopic assembly 1 comprises a first telescopic member 11 and a second telescopic member 12, wherein the first telescopic member 11 is connected with the second telescopic member 12, and the second telescopic member 12 can move along the length direction of the first telescopic member 11 to realize the extension or shortening of the telescopic assembly 1. In fig. 2, the telescopic assembly 1 is in an extended state, and when the second telescopic member 12 gradually moves leftwards, the overall length of the telescopic assembly 1 gradually becomes shorter, and finally the telescopic assembly 1 can be shortened to the state shown in fig. 1.
As shown in fig. 1 and 2, the frame 2 is disposed above the second telescopic member 12, the second telescopic member 12 supports and guides the frame 2, and the second telescopic member 12 restricts movement of the frame 2 only along the length direction of the first telescopic member 11.
The roller 3 is connected with the frame body 2, and the roller 3 can rotate around the axis of the roller. As shown in fig. 1 and 2, the drum 3 is disposed on the right side of the frame 2, the rotating shafts at two ends of the drum 3 are fixedly connected with the frame 2, and the tub of the drum 3 can rotate around its own axis.
The range extending component 4 is connected with the second telescopic piece 12 and the frame body 2, when the second telescopic piece 12 moves, the range extending component 4 drives the frame body 2 to move relative to the second telescopic piece 12, and the moving direction of the frame body 2 relative to the second telescopic piece 12 is the same as the moving direction of the second telescopic piece 12.
In use, the left end of the first telescopic member 11 is adapted to be connected to and held stationary relative to a belt conveyor (or other device), the second telescopic member 12 is moved along the length of the first telescopic member 11 to effect extension or shortening of the telescopic assembly 1, and the frame 2 and the roller 3 mounted on the frame 2 are moved a distance that is the sum of the distance moved by the second telescopic member 12 and the distance moved by the frame 2 relative to the second telescopic member 12, thereby ensuring that the tensioner has a relatively large effective tensioning stroke.
The tensioning device of the embodiment of the invention has smaller height, occupies small space in the vertical direction, has more than one time of the effective stroke of the tensioning device which is more than one time of the stroke of the telescopic assembly 1 through the stroke increasing assembly 4, and has smaller length along the stroke direction in the shortened state compared with other tensioning devices with the same stroke in the related art, thereby being beneficial to realizing miniaturization and space saving of the tensioning device. In addition, the whole tensioning operation process of the tensioning device is realized only by the extension and contraction of the extension and contraction assembly 1, so that the operation is simpler and more convenient, and the adjustment efficiency is greatly improved.
In some embodiments, the range extending assembly 4 includes a front sprocket 41, a rear sprocket 42, a drive chain 43, and a base 44, and the positional and assembly relationships of the various components are described in detail below.
As shown in fig. 1 and 2, the front sprocket 41 is connected to the second telescopic member 12, and the rear sprocket 42 is connected to the second telescopic member 12 and spaced apart from the front sprocket 41. In other words, the front sprocket 41 is mounted at the left end of the second telescopic member 12, the rear sprocket 42 is mounted at the right end of the second telescopic member 12, and the distance between the front sprocket 41 and the rear sprocket 42 is not less than the stroke of the telescopic assembly 1.
The transmission chain 43 is wound around the front sprocket 41 and the rear sprocket 42, and a part of the transmission chain 43 is connected to the frame 2. As shown in fig. 2, the driving chain 43 is engaged with the left half side of the front sprocket 41, the driving chain 43 is engaged with the right half side of the rear sprocket 42, the wheel axle of the front sprocket 41 is parallel to the wheel axle of the rear sprocket 42, the driving chain 43 can rotate around the front sprocket 41 and the rear sprocket 42 and the rotation direction of the front sprocket 41 and the rear sprocket 42 is the same, a part of the driving chain 43 is fixedly connected with the left end of the frame body 2, and the frame body 2 moves synchronously with the driving chain 43 when the driving chain 43 moves. The transmission chain 43 may be a chain or a timing belt.
The base 44 is connected to the transmission chain 43, and a space exists between the connection portion of the base 44 to the transmission chain 43 and the connection portion of the frame 2 to the transmission chain 43 in the longitudinal direction of the transmission chain 43. As shown in fig. 2, the base 44 is fixedly connected with the driving chain 43, the base 44 is fixedly connected with the belt conveyor, meanwhile, the left end of the first telescopic member 11 is also connected with the belt conveyor, the distance between the base 44 and the left end of the first telescopic member 11 is always kept unchanged, and the distance between the part, connected with the base 44, of the driving chain 43 and the left end of the first telescopic member 11 is always kept unchanged. Along the length of the drive chain 43, the distance between the connection of the base 44 to the drive chain 43 and the connection of the frame 2 to the drive chain 43 is not less than the travel of the telescopic assembly 1, thereby ensuring that the travel of the telescopic assembly 1 is not limited by the extended-range assembly 4, in which case the effective travel of the tensioner is twice that of the telescopic assembly 1.
In some embodiments, front sprocket 41 includes a first front sprocket 411 and a second front sprocket 412, first front sprocket 411 and second front sprocket 412 being disposed on different sides of second telescoping member 12. In other words, the first front sprocket 411 and the second front sprocket 412 are not simultaneously mounted on one of the front side, the rear side, the upper side, and the lower side of the second expansion member 12. For example, as shown in fig. 2, the first front sprocket 411 is installed on the front side of the second telescopic member 12, and the second front sprocket 412 is installed on the rear side of the second telescopic member 12, so that the stroke increasing assembly 4 is symmetrically distributed on the front and rear sides of the second telescopic member 12, thereby ensuring better stability of the tensioning device.
The rear sprocket 42 includes a second front sprocket 421 and a second rear sprocket 42 (hidden by the frame body 2, not shown) and the drive chain 43 includes a first drive chain 431 and a second drive chain 432. Wherein, the first front sprocket 411, the second front sprocket 421 and the first driving chain 431 are located at the same side of the second telescopic member 12, the second front sprocket 412, the second rear sprocket 42 and the second driving chain 432 are located at the same side of the second telescopic member 12, the first driving chain 431 is wound around the first front sprocket 411 and the second front sprocket 421, and the second driving chain 432 is wound around the second front sprocket 412 and the second rear sprocket 42.
In some embodiments, the first telescopic member 11 is a piston rod, the second telescopic member 12 includes a cylinder 121 and a bracket 122, a piston capable of sliding in the cylinder 121 is disposed in the cylinder 121, one end of the piston rod is connected with the piston in the cylinder 121, and the front sprocket 41 and the rear sprocket 42 are connected with the cylinder 121. Wherein, a complete set of oil cylinders or air cylinders is formed by the piston rods and the cylinder body 121.
The bracket 122 is connected to the outside of the cylinder 121, and the frame 2 is slidably connected to the bracket 122. As shown in fig. 2, the bracket 122 includes a first bracket plate 1221 and a second bracket plate 1222, wherein the bottom of the first bracket plate 1221 is fixed to the front end surface of the cylinder 121, the bottom of the second bracket plate 1222 is fixed to the rear end surface of the cylinder 121, the left end of the bracket body 2 is disposed between the first bracket plate 1221 and the second bracket plate 1222, two sliding grooves 211 matching the first bracket plate 1221 and the second bracket plate 1222 are disposed on the bracket body 2, and the upper ends of the first bracket plate 1221 and the second bracket plate 1222 are caught in the corresponding sliding grooves 211.
In some embodiments, the frame 2 includes a slide bar 21, a cross beam 22, a first mounting plate 23, and a second mounting plate 24.
Wherein the slide bar 21 is slidably connected to the second telescopic member 12, and a part of the transmission chain 43 is fixedly connected to one end of the slide bar 21. As shown in fig. 2, the sliding grooves 211 are provided on the sliding rod 21, the sliding rod 21 is provided between the first bracket plate 1221 and the second bracket plate 1222, a part of the upper ends of the first bracket plate 1221 and the second bracket plate 1222 is caught in the corresponding sliding grooves 211, and a part of the driving chain 43 is fixedly connected to the left end of the sliding rod 21.
The cross beam 22 is connected to the slide bar 21, a first mounting plate 23 is provided at a first end of the cross beam 22, and a second mounting plate 24 is provided at a second end of the cross beam 22. As shown in fig. 2, the right end of the slide bar 21 is fixedly connected with the middle part of the cross beam 22, so that the stress balance of the two sides of the roller 3 is ensured, and the slide bar 21 and the cross beam 22 form a T-shaped bracket. The first mounting plate 23 and the second mounting plate 24 may be made of metal plates and are parallel to each other, the first mounting plate 23 is fixed to the front end of the cross beam 22, and the second mounting plate 24 is fixed to the rear end of the cross beam 22.
One end of the roller 3 is connected with the first mounting plate 23, the other end of the roller 3 is connected with the second mounting plate 24, and the axis of the roller 3 is perpendicular to the length direction of the first telescopic member 11. As shown in fig. 2, the geometric centers of the front end surface and the rear end surface of the roller 3 are respectively provided with a roller shaft 31, the cylinder body of the roller 3 can rotate around the roller shafts 31, the roller shafts 31 on the front end surface of the roller 3 are fixedly connected with the first mounting plate 23, and the roller shafts 31 on the rear end surface of the roller 3 are fixedly connected with the second mounting plate 24.
In some embodiments, the tensioning device further comprises a first guiding assembly 5 and a second guiding assembly 6, the first guiding assembly 5 being arranged on the side of the first mounting plate 23 facing away from the drum 3, the second guiding assembly 6 being arranged on the side of the second mounting plate 24 facing away from the drum 3. As shown in fig. 2, the first guide member 5 is mounted on the front end surface of the first mounting plate 23, and the second guide member 6 is mounted on the rear end surface of the second mounting plate, and the first guide member 5 and the second guide member 6 together function to prevent the frame body 2 from swinging in the front-rear direction in use.
In some embodiments, the first guide assembly 5 and the second guide assembly 6 are each composed of a guide wheel 7, the end of the guide wheel 7 remote from the drum 3 is provided with a shoulder 71, and the rotation axis of the guide wheel 7 is parallel to the axis of the drum 3.
As shown in fig. 2, the first guide assembly 5 and the second guide assembly 6 are each composed of two guide wheels 7, and the four guide wheels 7 are located in the same plane. One guide wheel 7 of the first guide assembly 5 is mounted at the left end of the first mounting plate 23, and the other guide wheel 7 of the first guide assembly 5 is mounted at the right end of the first mounting plate 23. One guide wheel 7 of the second guide assembly 6 is mounted at the left end of the second mounting plate 24, and the other guide wheel 7 of the second guide assembly 6 is mounted at the right end of the second mounting plate 24. When the guide wheel 7 rolls in the corresponding guide slide way 81, the shaft shoulder 71 is used for being matched with the guide slide way 81 so as to limit the movement direction of the frame body 2, and meanwhile, the frame body 2 is prevented from swinging in the front-back direction, the frame body 2 is not required to be considered to be corrected, and the guide wheel 7 plays a bearing and supporting role on the tensioning device.
In some embodiments, the first helical blade 32 is wound around the outer circumferential surface of one end of the drum 3, and the second helical blade 33 is wound around the outer circumferential surface of the other end of the drum 3, and the first helical blade 32 is rotated in the opposite direction to the second helical blade 33. As shown in fig. 3, in the drawing, a first helical blade 32 is provided on the outer circumferential surface of the left half of the direction-changing drum 3, a second helical blade 33 is provided on the outer circumferential surface of the right half of the direction-changing drum 3, and both the first helical blade 32 and the second helical blade 33 are fixed to the outer circumferential surface of the direction-changing drum 3 in a welded manner. The combined action of the first and second helical blades 32, 33 on the belt conveyor when rotating around the bend drum 3 brings the belt in a centered position, preventing the belt from running off.
The following describes a rubber belt conveyor according to an embodiment of the present invention with reference to the drawings.
Referring to fig. 4, the adhesive tape conveyor according to the embodiment of the present invention includes the tensioning device according to any one of the above embodiments, the end of the first telescopic member 11 away from the roller 3 is connected to the adhesive tape conveyor body 8, the base 44 is connected to the adhesive tape conveyor body 8, and the adhesive tape (not shown in the drawings) on the adhesive tape conveyor body 8 is wound on the roller 3, and the telescopic assembly 1 is extended or shortened to drive the roller 3 to move along the length direction of the adhesive tape conveyor.
As shown in fig. 3, the left end of the telescopic assembly 1 is hinged to the rubber belt conveyor body 8 through a pin shaft 84, the base 44 is fixedly connected with the rubber belt conveyor, when the telescopic assembly 1 is extended or shortened, the first telescopic member 11 is kept stationary relative to the rubber belt conveyor, the second telescopic member 12 moves linearly relative to the rubber belt conveyor, and the second telescopic member 12 drives the direction-changing drum 3 to move along the length direction of the rubber belt conveyor so as to adjust the tensioning degree of the rubber belt.
The belt conveyor of the embodiment of the invention adopts the tensioning device of any embodiment, and the tensioning device occupies smaller space, so that more available space is saved for the belt conveyor body 8, the belt conveyor is miniaturized and light-weighted, and the tensioning device with larger effective stroke is convenient for adjusting the tensioning degree of the belt.
In some embodiments, the adhesive tape conveyor body 8 is provided with a guide rail 81, and the guide wheel 7 is disposed within the guide rail 81 and is rotatable within the guide rail 81, with a portion of the adhesive tape conveyor body 8 captured between the shoulder 71 on the first guide assembly 5 and the shoulder 71 on the second guide assembly 6. As shown in fig. 4 and 5, the front side and the rear side of the adhesive tape conveyor body 8 are both provided with rectangular guide rails 81, the guide wheels 7 are installed in the guide rails 81, the diameter of the guide wheels 7 is matched with the width of the guide rails 81, the shaft shoulders 71 are located on the outer sides of the guide rails 81, the diameter of the shaft shoulders 71 is larger than the width of the guide rails 81, and the shaft shoulders 71 can prevent the frame body 2 from swinging in the front-rear direction.
The belt conveyor of the embodiment of the invention further comprises an electromagnetic control valve group 83 fixed with the belt conveyor body 8, an energy storage device 81 fixed with the belt conveyor body 8 and a pressure sensor for detecting the tensioning pressure. At this time, the belt conveyor controls the action of the driving assembly through the electromagnetic control valve group 83, a certain pressure is stored by the energy storage device 81, the tension pressure of the belt is detected by the pressure sensor, when the tension pressure is smaller than the designed tension pressure range, the electromagnetic valve works, the belt is gradually tensioned, after the tension pressure reaches the designed value, the energy storage device 81 assists the tensioning device to maintain the tension pressure, and the tensioning device is cycled to realize automatic tensioning.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
For purposes of this disclosure, the terms "one embodiment," "some embodiments," "example," "a particular example," or "some examples," etc., 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, schematic representations of the above terms are not necessarily directed 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. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.
Claims (9)
1. A tensioner, comprising:
the telescopic assembly comprises a first telescopic piece and a second telescopic piece, the first telescopic piece is connected with the second telescopic piece, and the second telescopic piece can move along the length direction of the first telescopic piece so as to realize the extension or shortening of the telescopic assembly;
a frame body;
the roller is connected with the frame body and can rotate around the axis of the roller;
the range extending component is connected with the second telescopic piece and the frame body, when the second telescopic piece moves, the range extending component drives the frame body to move relative to the second telescopic piece, and the moving direction of the frame body relative to the second telescopic piece is the same as the moving direction of the second telescopic piece;
the range extension assembly includes:
the front chain wheel is connected with the second telescopic piece;
the rear chain wheel is connected with the second telescopic piece and is arranged at intervals with the front chain wheel;
the transmission chain is wound on the front chain wheel and the rear chain wheel, and one part of the transmission chain is connected with the frame body;
the base is connected with the transmission chain, and in the length direction of the transmission chain, a space exists between the connection part of the base and the transmission chain and the connection part of the frame body and the transmission chain.
2. The tensioner as in claim 1, wherein:
the front chain wheel comprises a first front chain wheel and a second front chain wheel, and the first front chain wheel and the second front chain wheel are arranged on different sides of the second telescopic piece;
the rear sprocket comprises a first rear sprocket and a second rear sprocket;
the transmission chain comprises a first transmission chain and a second transmission chain;
the first front chain wheel, the first rear chain wheel and the first transmission chain are located on the same side of the second telescopic piece, the second front chain wheel, the second rear chain wheel and the second transmission chain are located on the same side of the second telescopic piece, the first transmission chain is wound on the first front chain wheel and the first rear chain wheel, and the second transmission chain is wound on the second front chain wheel and the second rear chain wheel.
3. A tensioner as claimed in any one of claims 1 to 2, wherein the first telescopic member is a piston rod and the second telescopic member comprises:
the cylinder body is internally provided with a piston capable of sliding in the cylinder body, one end of the piston rod is connected with the piston in the cylinder body, and the front chain wheel and the rear chain wheel are connected with the cylinder body;
and the bracket is connected with the outside of the cylinder body, and the bracket body is connected with the bracket in a sliding way.
4. The tensioner as in any one of claims 1 to 2, wherein the frame comprises:
the sliding rod is in sliding connection with the second telescopic piece, and one part of the transmission chain is fixedly connected with one end of the sliding rod;
the cross beam is connected with the sliding rod;
a first mounting plate disposed at a first end of the beam,
the second mounting plate is arranged at the second end of the cross beam;
one end of the roller is connected with the first mounting plate, the other end of the roller is connected with the second mounting plate, and the axis of the roller is perpendicular to the length direction of the first telescopic piece.
5. The tensioner of claim 4, further comprising:
the first guide assembly is arranged on one side of the first mounting plate, which is away from the roller;
the second guide assembly is arranged on one side of the second mounting plate, which faces away from the roller.
6. A tensioning device according to claim 5 wherein the first and second guide assemblies are each comprised of a guide wheel, the end of the guide wheel remote from the roller being provided with a shoulder, the axis of rotation of the guide wheel being parallel to the axis of the roller.
7. A tensioner according to any one of claims 1 to 2, characterised in that a first helical blade is wound around the outer peripheral surface of one end of the roller and a second helical blade is wound around the outer peripheral surface of the other end of the roller, the first helical blade being in the opposite sense to the second helical blade.
8. A belt conveyor, comprising:
a rubber belt conveyor body;
the tensioning device is any one of the tensioning devices of claims 1 to 7, one end, away from the roller, of the first telescopic piece is connected with the rubber belt conveyor body, the base is connected with the rubber belt conveyor body, rubber belts on the rubber belt conveyor body are wound on the roller, and the telescopic component stretches or shortens to drive the roller to move along the length direction of the rubber belt conveyor.
9. The tape conveyor of claim 8, wherein with the tensioning device of claim 6, the tape conveyor body is provided with a guide slide, the guide wheel is disposed within and is rotatable within the guide slide, and a portion of the tape conveyor body is captured between the shoulder on the first guide assembly and the shoulder on the second guide assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210002775.7A CN114229349B (en) | 2022-01-04 | 2022-01-04 | Tensioning device and rubber belt conveyor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210002775.7A CN114229349B (en) | 2022-01-04 | 2022-01-04 | Tensioning device and rubber belt conveyor |
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| Publication Number | Publication Date |
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| CN114229349A CN114229349A (en) | 2022-03-25 |
| CN114229349B true CN114229349B (en) | 2023-12-01 |
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| CH491800A (en) * | 1969-05-12 | 1970-06-15 | Grosswaagen Veb | Belt tensioning and straight running regulating device for belt conveyors with endlessly revolving conveyor belt |
| US7448491B1 (en) * | 2007-06-04 | 2008-11-11 | Claas Selbstfahrende Erntemaschinen Gmbh | Combine header belt tensioning apparatus and method |
| CN110255087A (en) * | 2019-06-06 | 2019-09-20 | 中信戴卡股份有限公司 | A kind of carrier chain of automatic compensation and balance tensioning |
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| Publication number | Publication date |
|---|---|
| CN114229349A (en) | 2022-03-25 |
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