CN210914073U

CN210914073U - Auxiliary tensioning device suitable for bearing belt on storage table

Info

Publication number: CN210914073U
Application number: CN201921771954.7U
Authority: CN
Inventors: 赵进; 何滔
Original assignee: Nanjing Zhongjiu Mechanical Equipment Co ltd
Current assignee: Nanjing Xinshuntong Intelligent Equipment Technology Co ltd
Priority date: 2019-10-22
Filing date: 2019-10-22
Publication date: 2020-07-03
Anticipated expiration: 2029-10-22

Abstract

The utility model discloses an auxiliary tensioning device suitable for bear area on storage platform, including rack platform, direction disc, direction arc board, driving sprocket and conveyer belt, the direction disc includes first disc and second disc, the direction arc board includes first arc board and second arc board, driving sprocket includes first sprocket and second sprocket, first disc slides through first slide and sets up on last slide rail, the second disc slides through the second slide and sets up on the slide rail down, first sprocket and second sprocket set up length direction one side at the rack platform, be provided with the first sprocket of drive and second sprocket rotation driving motor on the rack platform, be provided with the tight subassembly of driving that is used for tensioning conveyer belt between second disc and first disc. The utility model discloses can realize the conveyer belt and shift on the stable tensioning of in-process to make the bottle can be by stable conveying unloading on the conveyer belt.

Description

Auxiliary tensioning device suitable for bearing belt on storage table

Technical Field

The utility model relates to a field, more specifically says, it relates to an auxiliary take-up device suitable for bear the weight of area on the storage platform.

Background

Bottles are widely used in various fields of life as a container for containing liquid or solid. Moreover, with the development of bottle production lines, the production of bottles is gradually going to be automated and continuous.

The prior Chinese patent with the publication number of CN206014375U discloses a high-speed dynamic bottle storage table, which comprises a single chip microcomputer controller, at least one buffer platform, at least one traction chain plate, a bottle falling detection device and a rotary platform, wherein a U-shaped bottle conveying channel is arranged between the buffer platform and the rotary platform.

However, like the bottle storage table of the above patent, during the conveying of the bottles, the tensioning of the traction link plate (i.e., the conveyor belt) must be ensured, otherwise the toppling of the bottles may be caused, and therefore the object of the present invention is to provide an auxiliary tensioning device, so that the conveyor belt is kept tensioned, and then the bottles are stably transported.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide an auxiliary tension device suitable for bear the weight of area on the storage platform can realize the conveyer belt and shift the stable tensioning of in-process on the basis of transmitting to make the bottle can be by stable conveying unloading on the conveyer belt.

In order to achieve the above purpose, the utility model provides a following technical scheme:

an auxiliary tensioning device suitable for a bearing belt on a storage table comprises a rack table, a guide disc, a guide arc plate, a driving chain wheel and a conveying belt, wherein the guide disc comprises a first disc and a second disc, the guide arc plate comprises a first arc plate and a second arc plate, the driving chain wheel comprises a first chain wheel and a second chain wheel, the rack table is provided with an upper slide rail and a lower slide rail along the length direction, the first disc is arranged on the upper slide rail in a sliding manner through a first slide plate, the second disc is arranged on the lower slide rail in a sliding manner through a second slide plate, the first chain wheel and the second chain wheel are arranged on one side of the rack table in the length direction, the axes of the first chain wheel and the second chain wheel are horizontally arranged, the concave surface of the first arc plate is arranged towards the first chain wheel in a collinear manner, the concave surface of the second arc plate is arranged away from the first chain wheel, and the first arc plate and the first disc form a first guide through groove, the second arc plate and the first disc form a second guide through groove, the conveyer belt is closed-loop, one end of the conveyer belt is arranged in the first guide through groove in a winding mode, the other end of the conveyer belt is arranged in the second guide through groove in a winding mode after bypassing the first chain wheel and the second chain wheel from the top, the conveyer belt is meshed with the first chain wheel and the second chain wheel, the rack platform is provided with a driving first chain wheel and a driving second chain wheel rotation driving motor, and a driving tight assembly used for tensioning the conveyer belt is arranged between the second disc and the first disc.

Through adopting above-mentioned technical scheme, the rotation of first sprocket and second linkage can make the conveyer belt use the closed loop structure of self as the orbit, passes on at first direction logical groove and second direction logical groove spare, accomplishes the basic transportation to the bottle. Meanwhile, due to the arrangement of the driving component, when the conveying belt is in a tensioning state, the first disc and the second disc can slide, the position of the discharging end of the bottle can be adjusted, the conveying belt can be stably tensioned in the transferring and moving process, and the bottle can be stably conveyed and discharged through the conveying belt.

The utility model discloses a further set up as, it includes first variable speed machine, second variable speed machine, hold-in range and synchronizing wheel to drive tight subassembly, first variable speed machine sets up the variable speed that is used for first sprocket on the rack platform, the second variable speed machine sets up the variable speed that is used for the second sprocket on the rack platform, the slew velocity one of first sprocket and second sprocket changes in turn from high to low, the synchronizing wheel sets up the one end of keeping away from first sprocket at the rack platform, hold-in range and synchronizing wheel meshing, the hold-in range upwards walks around the one end of synchronizing wheel and is connected with first slide, the hold-in range is walked around the one end of synchronizing wheel downwards and is connected with the second slide.

Through adopting above-mentioned technical scheme, because the speed of first sprocket and second sprocket is different, and is the same when the linear velocity of conveyer belt each point of closed loop, in order to compensate the speed difference between first sprocket and the second sprocket, first disc and second disc will take place to remove, simultaneously, have the existence of hold-in range, the movement track opposite direction of first disc and second disc to can guarantee that the conveyer belt can be in the state of tensioning all the time.

The utility model discloses a further set up to, the vertical section shape of direction arc board is the type of falling L, the horizontal boss of direction arc board sets up towards the direction disc, the sunken bearing annular that is provided with in direction disc's upper surface limit wall department, the lower surface of conveyer belt and the diapire butt of bearing annular, the interior rampart of conveyer belt and the vertical wall butt of bearing annular.

Through adopting above-mentioned technical scheme, the horizontal roof of direction arc board and the diapire of bearing annular can carry on spacingly to the conveyer belt in vertical direction and horizontal direction to make the straight removal of the transport face of conveyer belt when the arc conveying, can not take place the perk scheduling problem, make the bottle stably transmit on the conveyer belt.

The utility model discloses a further set up to, the width direction both ends of rack platform are provided with first guided way and second guided way respectively along vertical direction, are located the top the conveyer belt body lower surface slide and set up at the upper surface of first guided way, be located the below the conveyer belt body lower surface slide and set up the upper surface at the second guided way, the bottom surface parallel and level of first guided way, second guided way and bearing annular.

Through adopting above-mentioned technical scheme, on the horizontal direction, lead to the transportation orbit of conveyer belt, the conveyer belt that makes can advance straight ground and go out first direction and lead to groove and the logical groove of second direction, improves the stability of bottle transportation.

The utility model discloses a further set up to, the output that first guided way is close to first sprocket is provided with downwardly extending's direction oblique angle, be provided with the leading wheel that is located between first guided way and the first guided way on the rack platform, the length direction of the axial perpendicular to second guided way of leading wheel, the leading wheel is close to first sprocket setting and bottom wheel body and conveyer belt butt.

Through taking above-mentioned technical scheme, buckle the in-process that gets into the second direction and lead to the groove downwards at the conveyer belt, the angle when the conveyer belt buckles downwards can be reduced in the setting at direction oblique angle, and direction oblique angle plays the bearing effect to the conveyer belt simultaneously, reduces the wearing and tearing that the conveyer belt received at the in-process of buckling. Meanwhile, the guide wheels are arranged, so that the conveying belt bent downwards can be pressed to be horizontal, and the conveying belt can enter the second guide through groove straightly.

The utility model is further provided with a rotating through groove at one end of the stand platform far away from the first chain wheel, the groove wall of the rotating through groove far away from the first chain wheel is rotatably provided with a rotating base plate in the vertical direction, the synchronizing wheel is rotationally arranged on one side of the rotating base plate facing the first chain wheel, the top end and the bottom end of the rotating base plate are respectively provided with a guide rod, one end of the guide rod, which is far away from the rotating base plate, is sleeved with a sliding sleeve rod, two ends of the synchronous belt are provided with connecting plates, one end of the sliding sleeve rod, which is far away from the rotating base plate, is provided with a connecting block, the connecting block is connected with the connecting block in the vertical same direction through a bolt, a driving device for driving the rotating base plate to rotate is arranged on the rack platform, an abdicating through groove is formed in one end, facing the rotating base plate, of the first sliding plate and the second sliding plate, and the connecting plate is connected with the abdicating through groove through a connecting piece; when the rotating base plate rotates, the connecting plate passes through the yielding through groove on the vertical surface.

Through taking above-mentioned technical scheme, can rotate when rotating the base plate, upwards rotate the mounting structure of hold-in range, make the relevant mounting structure of hold-in range spill the upper surface of rack platform, thereby conveniently change and install the hold-in range, moreover, the setting of logical groove and connecting piece of stepping down, satisfy hold-in range stable mounting in first disc, between second disc and the synchronizing wheel, when making guide bar and slip loop bar follow rotation base plate pivoted again, can not bump into first disc and second disc.

The utility model discloses a further setting is as, the connecting piece includes inserting groove, storage tank and plugboard, the inserting groove sets up relatively on the lateral wall of groove along the frame platform width direction of stepping down, the storage tank sets up on the lateral wall of even board along the frame platform width direction, the plugboard slides and connects on the storage tank cell wall, the upper wall of storage tank runs through and is provided with the adjustment tank, plugboard upper wall is provided with the regulating block that stretches out the adjustment tank; when one end of the plug board extending out of the accommodating groove is plugged with the plug groove, a fixing bolt is arranged between the plug board and the plug groove; when the plugboard is received in the containing groove, the rotating base plate rotates.

By adopting the technical scheme, when the plugboard is plugged in the plugging groove, the limiting effect of the plugboard and the plugging groove is achieved, and the connecting board is fixed at the yielding through groove, so that the synchronous belt works normally. When the plug board withdraws the containing groove, the connecting board and the yielding through groove are not limited in the overturning direction of the connecting board, so that the synchronous belt can freely rotate along with the guide rod.

The utility model is further arranged that a shackle is arranged on one regulating block positioned on the same horizontal plane, and a hook head is arranged on the other regulating block positioned on the same horizontal plane through a spring; when the inserting plate retracts to the accommodating groove, the hook head is hooked with the hook ring, and the spring is in a stretching state.

Through taking above-mentioned technical scheme, when the plugboard withdrawed in the storage tank, gib head and shackle hookup, under the pulling force effect of spring moreover, a regulating block was close to relatively to make the plugboard receive in the storage tank steadily, can not influence the rotation of hold-in range.

To sum up, the utility model discloses following beneficial effect has:

1. the utility model utilizes the speed difference between the first chain wheel and the second chain wheel and the tension action of the synchronous belt to ensure that the conveyer belt keeps a tensioning state between the first disc and the second disc, thereby realizing the stable conveying of the bottles;

2. the utility model discloses a rotate the base plate, upwards rotate the mounting structure of hold-in range for the relevant mounting structure of hold-in range spills the upper surface of rack platform, thereby conveniently changes and installs the hold-in range.

Drawings

Fig. 1 is a schematic structural diagram of a first embodiment of the present invention.

FIG. 2 is a schematic diagram of a structure embodying an embodiment.

Fig. 3 is an enlarged view of a portion a in fig. 2.

Figure 4 is a cross-sectional view of a support ring groove and guide arc plate configuration used to embody one embodiment.

FIG. 5 is a cross-sectional view of a guide bevel structure embodying one embodiment.

Fig. 6 is a sectional view showing a structure embodying the embodiment.

Fig. 7 is an enlarged view at B in fig. 6.

FIG. 8 is a cross-sectional view of a connector structure embodying one embodiment.

Reference numerals: 1. a rack stand; 11. a first guide rail; 12. a second guide rail; 13. guiding oblique angles; 14. a guide wheel; 2. a guide disc; 21. a first disc; 211. an upper slide rail; 212. a first slide plate; 22. a second disc; 221. a lower slide rail; 222. a second slide plate; 23. a bearing ring groove; 3. a guide arc plate; 31. a first arc plate; 32. a second arc plate; 4. a drive sprocket; 41. a first sprocket; 42. a second sprocket; 5. a conveyor belt; 51. a first guide through groove; 52. a second guiding through groove; 6. a drive motor; 7. a drive component; 71. a first transmission; 72. a second transmission; 73. a synchronous belt; 74. a synchronizing wheel; 8. rotating the through groove; 9. rotating the substrate; 91. a guide bar; 92. sliding the loop bar; 93. a drive device; 94. connecting blocks; 95. connecting plates; 96. a yielding through groove; 97. a connecting member; 971. inserting grooves; 972. a plugboard; 973. a containing groove; 974. an adjustment groove; 975. an adjusting block; 976. fixing the bolt; 977. a shackle; 978. a hook head; 979. a spring.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The first embodiment is as follows:

the utility model discloses an auxiliary tensioning device suitable for bear area on storage platform, as shown in fig. 1 and fig. 2, including frame platform 1, direction disc 2, direction arc board 3, driving sprocket 4 and conveyer belt 5, direction arc board 3 includes first arc board 31 and second arc board 32, the concave surface of first arc board 31 sets up towards first sprocket 41, the concave surface of second arc board 32 deviates from first sprocket 41 and sets up, direction disc 2 includes first disc 21 and second disc 22, frame platform 1 is provided with slide rail 211 and lower slide rail 221 along length direction, first disc 21 slides through first slide 212 and sets up on last slide rail 211, second disc 22 slides through second slide 222 and sets up under on slide rail 221. The first arc plate 31 and the first disk 21 form a first guide channel 51, and the second arc plate 32 and the first disk 21 form a second guide channel 52. Drive sprocket 4 includes first sprocket 41 and second sprocket 42, and first sprocket 41 and second sprocket 42 set up in the length direction one side of frame platform 1, and the axis level collineation of first sprocket 41 and second sprocket 42 sets up, and conveyer belt 5 is the closed loop, and conveyer belt 5 meshes with first sprocket 41 and second sprocket 42, is provided with the first sprocket 41 of drive and second sprocket 42 on the frame platform 1 and rotates driving motor 6. After the driving motor 6 is started, the first chain wheel 41 and the second chain wheel 42 rotate, so that the conveyer belt 5 is under the meshing action of the first chain wheel 41 and the second chain wheel 42, the conveyer belt 5 takes a closed loop structure as a conveying track, the conveying belt is transferred in the first guide through groove 51, the meshing ends of the first chain wheel 41 and the second chain wheel 42 and the second guide through groove 52, meanwhile, under the action of the driving component 7, the conveyer belt is always in a tensioning state, and the first disc 21 and the second disc 22 can respectively slide on the upper guide rail and the lower guide rail, so that the bottles are conveyed down smoothly.

As shown in fig. 1 and 3, the tightening driving assembly 7 includes a first transmission 71, a second transmission 72, a timing belt 73 and a synchronizing wheel 74, the first transmission 71 is disposed on the frame 1 for shifting the first sprocket 41, the second transmission 72 is disposed on the frame 1 for shifting the second sprocket 42, the rotational speeds of the first sprocket 41 and the second sprocket 42 are alternately changed from high to low, the synchronizing wheel 74 is disposed at an end of the frame 1 away from the first sprocket 41, the timing belt 73 is engaged with the synchronizing wheel 74, an end of the timing belt 73 passing upward around the synchronizing wheel 74 is connected to the first sliding plate 212, and an end of the timing belt 73 passing downward around the synchronizing wheel 74 is connected to the second sliding plate 222; when the speed of the first sprocket 41 close to the first disc 21 is higher than the speed of the second sprocket 42 far from the first disc 21 along the conveying direction of the conveyor belt 5, the first disc 21 will move towards the first sprocket 41, and at the same time, the second disc 22 moves towards the direction far from the first sprocket 41 under the action of the timing belt 73, and the conveyor belt 5 is kept tensioned; similarly, when the speed of the first sprocket 41 close to the first disc 21 is lower than the speed of the second sprocket 42 far from the first disc 21, the first disc 21 will move away from the first sprocket 41, and at the same time, the second disc 22 will move away from the first sprocket 41 under the action of the timing belt 73, and the conveyor belt 5 will remain tensioned. And the movement of the first disc 21 also moves the lower end of the conveyor belt 5 located above, so as to achieve a smooth transfer of the bottles.

As shown in fig. 4, the vertical section of the guide arc plate 3 is inverted L-shaped, the horizontal boss at the top end of the guide arc plate 3 is arranged towards the guide disc 2, and a bearing ring groove 23 is concavely arranged at the edge wall of the upper surface of the guide disc 2; in the process of transmitting of conveyer belt 5, with the diapire of bearing annular 23 and 5 ground butts of conveyer belt, the vertical wall of bearing annular 23 and the interior rampart butt of conveyer belt 5 realize spacing at vertical direction and ascending level to conveyer belt 5 when 5 arc conveying of conveyer belt for 5 steady movement of conveyer belt.

As shown in fig. 1 and fig. 2, the width direction both ends of rack platform 1 are provided with first guided way 11 and second guided way 12 respectively along vertical direction, the 5 area body lower surfaces of conveyer belt that are located the top slide and set up the upper surface at first guided way 11, the 5 area body lower surfaces of conveyer belt that are located the below slide and set up the upper surface at second guided way 12, in the time of 5 conveyer belts of conveyer belt, straight lower surface and first guided way 11, the bottom surface butt of second guided way 12 and bearing annular groove 23, realize spacing in the horizontal direction when conveying 5 straight conveying of conveyer belt, make conveyer belt 5 steadily move.

As shown in fig. 2 and 5, the first guide rail 11 is provided with a downwardly extending guide bevel 13 near the output end of the first sprocket 41, so as to reduce the wear on the conveyor belt 5 when the conveyor belt 5 bends at the first sprocket 41 and the second sprocket 42; and be provided with the leading wheel 14 that is located between first guided way 11 and first guided way 11 on the frame platform 1, the axial direction of leading wheel 14 perpendicular to second guided way 12's length direction, after conveyer belt 5 passed first sprocket 41 and second sprocket 42, can pass from leading wheel 14 below, and leading wheel 14 can be pressed conveyer belt 5 to straight, makes conveyer belt 5 enter into the second direction smoothly and leads to the groove 52.

The working process is as follows:

the driving motor 6, the first speed changer 71 and the second speed changer 72 are started to make the first chain wheel 41 and the second chain wheel 42 rotate at different speeds to drive the conveying belt 5 to transfer by taking a self closed loop structure as a conveying track, at the moment, the first disc 21 slides due to the speed difference of the first chain wheel 41 and the second chain wheel 42, and the second disc 22 moves in the opposite direction to the first disc 21 under the action of the pulling force of the synchronous belt 73, so that the conveying belt is always in a tensioning state, and the bottles are conveyed down smoothly.

Example two:

an auxiliary tension device for a carrier tape on a storage platform, as shown in fig. 6 and 7, the second embodiment is different from the first embodiment in that: a rotating through groove 8 is formed in one end, away from the first chain wheel 41, of the rack table 1, a rotating base plate 9 in the vertical direction is rotatably arranged on a groove wall, away from the first chain wheel 41, of the rotating through groove 8, a synchronizing wheel 74 is rotatably arranged on one side, facing the first chain wheel 41, of the rotating base plate 9, guide rods 91 are respectively arranged at the top end and the bottom end of the rotating base plate 9, a sliding sleeve rod 92 is sleeved at one end, away from the rotating base plate 9, of each guide rod 91, connecting plates 95 are arranged at two ends of each synchronous belt 73, a connecting block 94 connected with the connecting plate 95 through a bolt is arranged at one end, away from the rotating base plate 9, of each sliding sleeve rod 92, a driving device 93 for driving the rotating base plate 9 to rotate is arranged on the rack table 1, a yielding through groove 96 is formed in one end, facing the rotating base plate 9; when the device normally works, the connecting plate 95 is fixed at the yielding through groove 96 by the connecting piece 97, and the guide rod 91 and the sliding sleeve rod 92 stretch along with the movement of the synchronous belt 73; when needs are changed hold-in range 73, move first disc 21 and second disc 22 to the position of aliging, remove the fixed action of connecting piece 97, start drive arrangement 93, make and rotate base plate 9 and drive guide bar 91 and the loop bar 92 that slides upwards and rotate, simultaneously will be synchronous to upwards rotating, make hold-in range 73 expose in the outside of frame platform 1, then will link board 95 and link piece 94 separately, then go on more to hold-in range 73, again with hold-in range 73 remove the normal position, it can in logical groove 96 to let a position to link board 95 to fix.

As shown in fig. 7 and 8, the connection member 97 includes a plug groove 971, a receiving groove 973, and a plug plate 972, the plug groove 971 is relatively disposed on a side wall of the yielding through groove 96 along the width direction of the stand 1, the receiving groove 973 is disposed on a side wall of the connecting plate 95 along the width direction of the stand 1, the plug plate 972 is slidably connected to a wall of the receiving groove 973, an upper wall surface of the receiving groove 973 is provided with an adjusting groove 974 in a penetrating manner, an upper wall surface of the plug plate 972 is provided with an adjusting block 975 extending out of the adjusting groove 974, and the adjusting block 975 drives the plug plate 972 to move; inserting the plugboard 972 into the plugboard 971, and connecting a fixing bolt 976 between the plugboard 972 and the plugboard 971 by screw thread to fix the connecting plate 95 and the abdicating through groove 96; the fixing bolt 976 is detached, the adjusting block 975 is moved, and the inserting plate 972 is received in the receiving groove 973, so that the fixing of the connecting plate 95 can be released.

As shown in fig. 7, a hook ring 977 is disposed on one adjusting block 975 located on the same horizontal plane, and a hook head 978 is disposed on the other adjusting block 975 located on the same horizontal plane through a spring 979; after the insertion plate 972 is retracted into the receiving groove 973, the hook head 978 is hooked with the hook ring 977, and the insertion plate 972 is stably received in the receiving groove 973 by the tensile force of the spring 979.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. The utility model provides an auxiliary tension device suitable for bear area on storage platform which characterized in that: including frame platform (1), direction disc (2), direction arc board (3), driving sprocket (4) and conveyer belt (5), direction disc (2) include first disc (21) and second disc (22), direction arc board (3) include first arc board (31) and second arc board (32), driving sprocket (4) include first sprocket (41) and second sprocket (42), frame platform (1) is provided with slide rail (211) and lower slide rail (221) along length direction, first disc (21) slide through first slide (212) and set up on last slide rail (211), second disc (22) slide through second slide (222) and set up on lower slide rail (221), first sprocket (41) and second sprocket (42) set up in the length direction one side of frame platform (1), the axis level of first sprocket (41) and second sprocket (42) sets up, the concave surface of first arc board (31) sets up towards first sprocket (41), the concave surface of second arc board (32) deviates from first sprocket (41) and sets up, first arc board (31) and first disc (21) form first direction logical groove (51), second arc board (32) and first disc (21) form second direction logical groove (52), conveyer belt (5) are closed loop, the one end of conveyer belt (5) is rich and is established in first direction logical groove (51), the other end of conveyer belt (5) is from the top around first sprocket (41) and second sprocket (42) back and second direction logical groove (52) rich and establish, conveyer belt (5) and first sprocket (41) and second sprocket (42) meshing, be provided with on stand platform (1) and drive first sprocket (41) and second sprocket (42) rotation driving motor (6), be provided with between second disc (22) and first disc (21) and be used for driving the tight conveyer belt (5) of tensioning An assembly (7).

2. An auxiliary tensioner as claimed in claim 1, wherein: the tight subassembly (7) of driving includes first variable speed motor (71), second variable speed motor (72), hold-in range (73) and synchronizing wheel (74), first variable speed motor (71) set up the variable speed that is used for first sprocket (41) on rack platform (1), second variable speed motor (72) set up the variable speed that is used for second sprocket (42) on rack platform (1), the rotation speed one high one low alternation of first sprocket (41) and second sprocket (42), synchronizing wheel (74) set up the one end of keeping away from first sprocket (41) in rack platform (1), hold-in range (73) and synchronizing wheel (74) meshing, the one end that hold-in range (73) upwards walked around synchronizing wheel (74) is connected with first slide plate (212), the one end that hold-in range (73) was walked around synchronizing wheel (74) downwards is connected with second slide plate (222).

3. An auxiliary tensioner as claimed in claim 1, wherein: the vertical section shape of direction arc board (3) is the type of falling L, the horizontal boss of direction arc board (3) sets up towards direction disc (2), the upper surface limit wall department of direction disc (2) is sunken to be provided with bearing annular (23), the lower surface of conveyer belt (5) and the diapire butt of bearing annular (23), the interior rampart of conveyer belt (5) and the vertical wall butt of bearing annular (23).

4. An auxiliary tensioner as claimed in claim 3, wherein: the width direction both ends of rack platform (1) are provided with first guided way (11) and second guided way (12) respectively along vertical direction, are located the top conveyer belt (5) area body lower surface slide and set up the upper surface at first guided way (11), are located the below conveyer belt (5) area body lower surface slide and set up the upper surface at second guided way (12), the bottom surface parallel and level of first guided way (11), second guided way (12) and bearing annular (23).

5. An auxiliary tensioner as claimed in claim 4, wherein: first guided way (11) are close to the output of first sprocket (41) and are provided with downwardly extending's direction oblique angle (13), be provided with leading wheel (14) that are located between first guided way (11) and first guided way (11) on rack platform (1), the axial perpendicular to second guided way (12)'s of leading wheel (14) length direction, leading wheel (14) are close to first sprocket (41) and set up and bottom wheel body and conveyer belt (5) butt.

6. An auxiliary tensioner as claimed in claim 2, wherein: the one end that first sprocket (41) was kept away from to frame platform (1) is provided with rotates and leads to groove (8), it is provided with rotation base plate (9) in vertical direction to rotate on the cell wall of keeping away from first sprocket (41) to rotate to lead to groove (8), synchronizing wheel (74) rotate and set up in the one side of rotating base plate (9) towards first sprocket (41), the top and the bottom of rotating base plate (9) are provided with guide bar (91) respectively, the one end that rotates base plate (9) is kept away from to guide bar (91) has cup jointed slip loop bar (92), the both ends of hold-in range (73) are provided with link plate (95), the one end that rotates base plate (9) is kept away from to slip loop bar (92) is provided with link block (94), link block (94) pass through bolted connection with vertical syntropy link block (94), be provided with drive and rotate base plate (9) pivoted drive arrangement (93) on frame platform (1), one ends of the first sliding plate (212) and the second sliding plate (222) facing the rotating base plate (9) are provided with yielding through grooves (96), and the connecting plate (95) is connected with the yielding through grooves (96) through connecting pieces (97); when the rotating base plate (9) rotates, the connecting plate (95) passes through the yielding through groove (96) on the vertical surface.

7. An auxiliary tensioner as claimed in claim 6, wherein: the connecting piece (97) comprises a plug-in groove (971), a containing groove (973) and a plug-in board (972), wherein the plug-in groove (971) is oppositely arranged on the side wall of the abdicating through groove (96) along the width direction of the stand platform (1), the containing groove (973) is arranged on the side wall of the connecting board (95) along the width direction of the stand platform (1), the plug-in board (972) is connected to the groove wall of the containing groove (973) in a sliding manner, the upper wall surface of the containing groove (973) is provided with an adjusting groove (974) in a penetrating manner, and the upper wall surface of the plug-in board (972) is provided with an adjusting block (975) extending out of the; when one end of the insertion plate (972) extending out of the accommodating groove (973) is inserted into the insertion groove (971), a fixing bolt (976) is arranged between the insertion plate (972) and the insertion groove (971); when the plugboard (972) is received in the containing groove (973), the rotating base plate (9) rotates.

8. An auxiliary tensioner as claimed in claim 7, wherein: a hook ring (977) is arranged on one adjusting block (975) positioned on the same horizontal plane, and a hook head (978) is arranged on the other adjusting block (975) positioned on the same horizontal plane through a spring (979); when the plug board (972) retracts to the accommodating groove (973), the hook head (978) is hooked with the hook ring (977), and the spring (979) is in a stretching state.