Transmission belt deviation rectifying system controlled by controller and working method
Technical Field
The invention relates to a deviation rectifying system and a working method for a transmission belt, which are used for rectifying deviation of the transmission belt.
Background
there are devices for correcting the deviation of the transmission belt, such as the automatic roller assembly of the belt conveyor belt in chinese patent document No. CN2725232Y, the roller assembly of the belt conveyor belt in chinese patent document No. CN201419912Y, and the deviation correcting system of the thermoplastic plate transmission belt in chinese patent document No. CN203794068U, all of which adjust the rotation of one end of the transmission roller or the tension roller relative to the other end, so that the tension of one side of the transmission belt in the width direction is not equal to the tension of the other side of the transmission belt to realize the deviation correction of the transmission belt, however, in the process of adjusting the transmission roller, unequal tension on the two sides of the belt can cause the looseness on the two sides of the belt in the width direction to change over time, that is, one side of the transmission belt along the width direction is too loose, and the other side is in a tensioning state, so that the contact fit of the transmission belt and the transmission roller is influenced, and the transmission belt is prematurely scrapped.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a deviation rectifying system for a transmission belt and a working method thereof, wherein a roller is used for rectifying deviation of the transmission belt along the width direction of the transmission belt.
in order to solve the above technical problem, the present invention provides a deviation correcting system for a transmission belt, comprising: a driving roller assembly and a driven roller assembly; the driving belt is sleeved on the rollers of the driving roller assembly and the driven roller assembly; the driving roller assembly and/or the driven roller assembly comprises: the roller is composed of one or more sliding roller surfaces and at least one static roller surface, the section of the roller is of a multi-section annular structure, each sliding roller surface is suitable for moving relative to the static roller surface along the axial direction, and the sliding roller surfaces and the static roller surfaces are suitable for rotating around the central axis together.
The sliding roller surface at least comprises a first sliding roller surface and a second sliding roller surface, a supporting sleeve is arranged in the roller, the inner wall of the static roller surface is fixedly connected with the supporting sleeve, and the first sliding roller surface and the second sliding roller surface are in sliding fit with the supporting sleeve along the axial direction and are suitable for rotating together with the supporting sleeve.
the outer side face of the supporting sleeve is provided with a first sliding groove and a second sliding groove which are axially distributed, a first sliding block is axially matched with the first sliding groove in the first sliding groove, a second sliding block is axially matched with the second sliding groove in a sliding mode, limiting ribs arranged on the inner side face of each sliding groove are in limiting fit with limiting grooves arranged on the outer side face of each sliding block, the first sliding block is fixedly connected with the inner wall of the first sliding roller face, and the second sliding block is fixedly connected with the inner wall of the.
Initiative deviation correcting roller subassembly still includes: a rotating device, a sliding device and a controller; the rotating device comprises a transmission shaft fixedly connected with the left end of the supporting sleeve, and the middle part of the transmission shaft is rotationally matched in the left bearing seat on one side; the sliding device comprises a central shaft, the left end of the central shaft is axially and slidably matched in a sliding groove at the right end of the supporting sleeve, the right end of the central shaft is in transmission connection with a driving cylinder, the driving cylinder is suitable for driving the central shaft to axially reciprocate, a first bearing seat, a second bearing seat, a third bearing seat and a sixth bearing seat are sequentially arranged between the central shaft and the roller from right to left along the axial direction, the central shaft penetrates through the first bearing seat, a second bearing seat, a third bearing seat and a sixth bearing seat are arranged in the first bearing seat and are in sliding fit with the fourth bearing seat, the first bearing seat, the sixth bearing seat are fixedly connected with the static roller surface, the second bearing seat is fixedly connected with the second sliding roller surface, the third bearing seat is fixedly connected with the first sliding roller surface, a third spring is arranged between the third bearing seat and the adjacent end surface of the sixth bearing seat, a fourth spring is arranged between the first bearing seat and the adjacent end surface of the second bearing seat, and a second driving block is arranged on the outer side surface of a central shaft between the third bearing; the controller is suitable for controlling the work of the driving cylinder. The other scheme is that the bearing seat II and the bearing seat III are respectively and simultaneously fixedly connected with the sliding roller surface I and the sliding roller surface II, and the two sliding roller surfaces can be replaced by a single sliding roller surface.
further, the scheme adopted is as follows: the bearing seat II is fixedly connected with the sliding roller surface II, the bearing seat III is fixedly connected with the sliding roller surface I, the right side of the support sleeve is positioned between the central shaft and the roller, a bearing seat V and a bearing seat IV are sequentially arranged from left to right along the axial direction, the bearing seat IV is adjacently arranged on the left side of the bearing seat VI, the central shaft penetrates through the bearing seat IV and the bearing seat V and is in sliding fit with the bearing seat IV and the bearing seat IV, the bearing seat IV is fixedly connected with the sliding roller surface I, the bearing seat V is fixedly connected with the sliding roller surface II, a spring I is arranged between the adjacent end faces of the support sleeve and the bearing seat V, a spring II is arranged between the adjacent end faces of the bearing seat IV and the bearing seat.
the first spring, the second spring, the third spring and the fourth spring are respectively sleeved outside the central shaft; the left end of the transmission shaft is in transmission connection with the motor, the controller is also used for controlling the motor to work, and the formed roller assembly is a driving roller assembly.
One side of the roller is provided with a position sensor for detecting the positions of the first sliding roller surface, the second static roller surface and the second sliding roller surface in the circumferential direction, one side of the first bearing seat is provided with a distance measuring sensor for measuring the distance between the driving belt and the edges of the two sides of the roller, and the driving cylinder is a deviation rectifying cylinder.
The invention provides a working method of a transmission belt deviation rectifying system, which comprises the following steps: the driving roller assembly and/or the driven roller assembly has the sliding roller surfaces and the static roller surfaces rotating around the central axis, and when the deviation of the driving belt is required, the sliding roller surfaces are controlled to move axially towards the required direction relative to the static roller surfaces when the sum of the contact surfaces of the driving belt and the sliding roller surfaces is larger than the contact surface of the driving belt and the static roller surfaces, so that the driving belt moves on the rollers to perform deviation correction; when the contact surface of the transmission belt and each sliding roller surface is smaller than that of the transmission belt and the static roller surface, each sliding roller surface is controlled to move reversely relative to the static roller surface along the axial direction and reset; this is repeated until the belt is reset.
The invention also provides a working method of the transmission belt deviation rectifying system, which comprises the following steps:
a. Synchronously operating a transmission belt sleeve and a roller of the driving roller assembly and/or the driven roller assembly;
b. If the distance measuring sensor detects that the transmission belt deviates from the center of the roller leftwards, when the sum of the contact surfaces of the transmission belt and the first sliding roller surface and the second sliding roller surface is larger than the contact surface of the transmission belt and the static roller surface, the deviation correcting cylinder drives the central shaft to move rightwards, the central shaft drives the first driving block and the second driving block to simultaneously move rightwards, the first driving block drives the fourth bearing seat to move rightwards, the second driving block drives the second bearing seat to move rightwards, the fourth driving block drives the first sliding roller surface to move axially rightwards, and the second bearing seat drives the second sliding roller surface to; when the contact surface of the transmission belt and the static roller surface in rotation is larger than the sum of the contact surfaces of the transmission belt and the first sliding roller surface and the second sliding roller surface, the deviation rectifying cylinder drives the central shaft to reset, and the first sliding roller surface and the second sliding roller surface reset under the action of the second spring and the fourth spring; repeating the step until the transmission belt moves to the central position of the roller;
c. if the distance measuring sensor detects that the transmission belt deviates from the center of the roller rightwards, when the sum of the contact surfaces of the transmission belt, the first sliding roller surface and the second sliding roller surface is larger than the contact surface of the transmission belt and the static roller surface, the deviation correcting cylinder drives the central shaft to move leftwards, the central shaft drives the first driving block and the second driving block to move leftwards simultaneously, the first driving block drives the fifth bearing seat to move leftwards, the second driving block drives the third bearing seat to move leftwards, the fifth driving block drives the second sliding roller surface to move leftwards axially, and the third driving block drives the first sliding roller surface to move leftwards axially; when the contact surface of the transmission belt and the static roller surface in rotation is larger than the sum of the contact surfaces of the transmission belt and the first sliding roller surface and the second sliding roller surface, the deviation rectifying cylinder drives the central shaft to reset, and the first sliding roller surface and the second sliding roller surface reset under the action of the first spring and the second spring; this step is repeated until the belt moves to the center of the roller.
Preferably, in the step b, when the first sliding roller surface and the second sliding roller surface reset, the deviation rectifying cylinder pushes the central shaft to move leftwards, so that the first driving block drives the first bearing seat to move leftwards, and simultaneously the second driving block drives the third bearing seat to move leftwards, the fifth bearing seat and the third bearing seat respectively drive the second sliding roller surface and the first sliding roller surface to move leftwards, and the second spring, the fourth spring and the deviation rectifying cylinder drive the first sliding roller surface and the second sliding roller surface to reset together;
Preferably, in the step c, when the first sliding roller surface and the second sliding roller surface reset, the deviation rectifying cylinder pushes the central shaft to move rightwards, so that the first driving block drives the second bearing seat to move rightwards, and simultaneously the second driving block drives the second bearing seat to move rightwards, the fourth bearing seat and the second bearing seat respectively drive the first sliding roller surface and the second sliding roller surface to move rightwards and reset quickly, and the first spring, the second spring and the deviation rectifying cylinder drive the first sliding roller surface and the second sliding roller surface to reset together.
Compared with the prior art, the invention has the technical effects that:
(1) According to the transmission belt deviation rectifying system, in the rotating process of the roller, when the sliding roller surface is in contact with the transmission belt, the sliding roller surface moves axially relative to the static roller surface, and the transmission belt can be driven to move in the width direction, so that the deviation of the transmission belt is rectified.
(2) The roller adopts a multi-section structure, increases the angle of the sliding roller surface in the rotating circumferential direction, reduces the angle of the static roller surface in the rotating circumferential direction, prolongs the contact time of the sliding roller surface and the transmission belt in the rotating process of the roller, and increases the time for moving the sliding roller surface to correct the deviation; in addition, in the deviation rectifying process, the first sliding roller surface and the second sliding roller surface can axially move in the same direction and rectify the deviation in the same direction, and can axially move in opposite directions and rectify the deviation in opposite directions, so that the sliding device is favorable for adopting a flexible control mode for the sliding roller surfaces.
(3) The first sliding roller surface and the second sliding roller surface are respectively in axial sliding fit with the support sleeve through the first sliding block, the second sliding block, the first sliding chute and the second sliding chute, and can rotate along with the support sleeve when moving axially.
(4) The roller assembly drives the supporting sleeve and the roller to rotate by using the motor and the transmission shaft, simultaneously drives the bearing seat II and the bearing seat III to move reversely by using the driving block II, respectively drives the sliding roller surface II and the sliding roller surface I to move reversely to realize the left-right deviation correction, and realizes the reset of the sliding roller surface I and the sliding roller surface II by using the bearing seat I, the bearing seat six, the spring three and the spring four which are axially fixed.
(5) The driving block I can drive the sliding roller surface I and the sliding roller surface II to move reversely through the bearing seat IV and the bearing seat V, the driving block I and the driving block II are matched to simultaneously drive the sliding roller surface I and the sliding roller surface II to move towards the same direction, so that the deviation can be corrected when a transmission belt is in contact with the sliding roller surface I or the sliding roller surface II, the deviation correction time is increased, meanwhile, the contact area between the transmission belt and the sliding roller surface can be increased when the transmission belt is in contact with the sliding roller surface I and the sliding roller surface II, the friction force between the transmission belt and the sliding roller surface is improved, the slippage between the transmission belt and the sliding roller surface in the deviation correction process is prevented, and the success rate of primary deviation correction action.
(6) The first spring, the second spring, the third spring and the fourth spring are respectively sleeved outside the central shaft, and the central shaft limits the springs.
(7) the position sensor is used for detecting the positions of the first sliding roller surface, the second static roller surface and the second sliding roller surface in the circumferential direction, the position sensor transmits signals to the controller for controlling the deviation rectifying cylinder to judge when the first sliding roller surface and the second sliding roller surface rotate to the position contacted with the transmission belt, and the distance measuring sensor is used for measuring the distance between the transmission belt and the two side edges of the roller and transmitting signals to the controller to judge whether the transmission belt deviates from the central position of the roller.
(8) the working method of the roller assembly respectively adopts the control steps of leftward deviation correction and rightward deviation correction to respectively correct the deviation in two directions, simplifies the control mode, improves the accuracy of single deviation correction, can correct the deviation again after the first sliding roller surface and the second sliding roller surface reset, and overcomes the problem that the single deviation correction action cannot be completely corrected in place due to the limitation of deviation correction time determined by the rotating speed of the roller through multiple deviation correction actions.
(9) the first sliding roller surface and the second sliding roller surface are matched with the springs to reset the first sliding roller surface and the second sliding roller surface quickly, so that the working efficiency is improved, and the first sliding roller surface and the second sliding roller surface can reset quickly under the condition of high rotating speed of the roller, so that the deviation rectifying process of the transmission belt is controlled accurately.
Drawings
In order to clearly illustrate the innovative principles of the present invention and its technical advantages compared with the prior art products, a possible embodiment is illustrated below by way of non-limiting example applying said principles, with the aid of the annexed drawings. In the figure:
FIG. 1 is a view showing an axial cross-sectional structure of a drive roller assembly for correcting a deviation of a driving belt according to the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1 or FIG. 9;
FIG. 3 is a cross-sectional view B-B of FIG. 1 or FIG. 9;
FIG. 4 is a cross-sectional view C-C of FIG. 1 or FIG. 9;
FIG. 5 is a cross-sectional view D-D of FIG. 1 or FIG. 9;
FIG. 6 is a cross-sectional view E-E of FIG. 1 or FIG. 9;
FIG. 7 is a cross-sectional view F-F of FIG. 1 or FIG. 9;
FIG. 8 is a sectional view taken along line G-G of FIG. 1 or FIG. 9;
FIG. 9 is a view showing an axial sectional view of the driven roller assembly for correcting the error of the driving belt according to the present invention.
Detailed Description
Example 1
Referring to fig. 1 to 8, the drive roller assembly for correcting a deviation of a driving belt of the present embodiment includes: the device comprises a deviation rectifying cylinder 1, a connecting flange 2, a distance measuring sensor 3, a bearing seat I4, a bearing seat II 5, a bearing seat III 6, a central shaft 7, a bearing seat IV 8, a bearing seat V9, a spring I10, a transmission shaft 11, a motor 12, a sliding roller surface I13, a static roller surface 14, a sliding chute I15, a sliding block I16, a sliding roller surface II 17, a sliding chute II 18, a sliding block II 19, a bearing seat VI 20, a spring II 21, a spring III 22, a spring IV 23, a sliding groove 24, a support sleeve 25, a limiting block I26, a limiting block II 27, a driving block I28, a driving block II 29, a roller 30, a right bearing seat 32, a left bearing seat 33, a sliding chute III 34, a sliding block III 35, a sliding chute IV 36, a sliding block IV 37, a sliding chute V38, a sliding block V39, a sliding chute VI 40, a sliding block VI 41, a sliding chute VII 42, a sliding block VII, a sliding block, eleven sliding groove 50, eleven sliding block 51, twelve sliding groove 52, twelve sliding block 53, thirteen sliding groove 54, thirteen sliding block 55, fourteen sliding groove 56 and fourteen sliding block 57.
as shown in fig. 1 and 8, a first bearing seat 4, a second bearing seat 5, a third bearing seat 6, a sixth bearing seat 20, a fourth bearing seat 8 and a fifth bearing seat 9 are sequentially arranged on the outer side surface of a cylindrical central shaft 7 from right to left, the central shaft 7 is in sliding fit with the bearing seats, a transmission shaft 11 which is coaxial with the central axis is arranged on the left side of the central shaft 7, a cylindrical support sleeve 25 which is coaxial with the central axis and has an opening facing right is fixedly connected to the right end of the transmission shaft 11, a cylindrical sliding groove 24 which has an opening facing right is arranged in the support sleeve 25, the sliding groove 24 and the transmission shaft 11 are coaxial, the left end of the central shaft 7 is in sliding fit with the sliding groove 24, a first spring 10 is arranged between the adjacent end surfaces of the support sleeve 25 and the fifth bearing seat 9, the first spring 10 is sleeved on the outer side of the, a third spring 22 is arranged between the sixth bearing seat 20 and the adjacent end face of the third bearing seat 6, the third spring 22 is sleeved on the outer side of the central shaft 7, a fourth spring 23 is arranged between the second bearing seat 5 and the adjacent end face of the first bearing seat 4, the fourth spring 23 is sleeved on the outer side of the central shaft 7, a first disc-shaped driving block 28 is arranged on the outer side face of the central shaft 7 between the fifth bearing seat 9 and the fourth bearing seat 8, a second disc-shaped driving block 29 is arranged on the outer side face of the central shaft 7 between the third bearing seat 6 and the second bearing seat 5, the first bearing seat 4 is rotationally matched on a right bearing seat 32 on the right side of the first bearing seat, the left part of the transmission shaft 11 is rotationally matched on a left bearing seat 33, the left end of the transmission shaft 11 is in transmission connection with the motor 12, a first limit block 26 is arranged on the left outer side of the transmission, the deviation correcting cylinder 1 is adapted to drive the central shaft 7 to move in the axial direction by the piston when it is operated.
the hollow roller 30 is sleeved outside each bearing seat and the supporting sleeve 25, the section of the roller 30 is of a three-section annular structure and comprises a first sliding roller surface 13, a second static roller surface 14 and a second sliding roller surface 17, as shown in figures 2-8, the inner wall of the first static roller surface 14 is fixedly connected with the supporting sleeve 25 through a plurality of screws, the outer side surface of the supporting sleeve 25 is provided with a first sliding chute 15 and a second sliding chute 18, the first sliding chute 15 and the second sliding chute 18 are arranged along the axial direction of the supporting sleeve 25, a first sliding block 16 is respectively matched in each sliding chute 15 in a sliding way, a second sliding block 19 is respectively matched in each sliding chute 18 in a sliding way, each first sliding block 16 is respectively fixedly connected with the inner wall of the first sliding roller surface 13 through a screw, each second sliding block 19 is respectively fixedly connected with the inner wall of the second sliding roller surface 17 through a screw, the first sliding chute 15 and the second sliding chute 19 are both arranged along the axial direction of the supporting sleeve 25, a limiting rib arranged on the inner, the sliding block is prevented from being separated from the sliding groove in rotation.
The bearing seat I4 and the bearing seat II 20 are fixedly connected with the inner wall of the static roller surface 14, the bearing seat III 6 and the bearing seat IV 8 are fixedly connected with the inner wall of the sliding roller surface I13, the bearing seat II 5 and the bearing seat V9 are fixedly connected with the inner wall of the sliding roller surface II 17, and when the central shaft 7 drives the driving block I28 and the driving block II 29 to move axially, the bearing seat I6 and the bearing seat IV 8 are suitable for driving the sliding roller surface I13 to move axially or the bearing seat II 5 and the bearing seat V9 are suitable for driving the sliding roller surface II 17 to move axially.
The outer side wall of the bearing seat five 9 is provided with an axial sliding groove three 34 and a sliding groove four 36, the sliding roller surface one 13 is in sliding fit with the sliding groove three 34 along the axial direction through a sliding block three 35 connected to the inner wall, and the static roller surface 14 is in sliding fit with the sliding groove four 36 along the axial direction through a sliding block four 37 connected to the inner wall; the outer side wall of the bearing seat IV 8 is provided with an axial sliding groove V38 and an axial sliding groove V40, the static roller surface 14 is in sliding fit with the sliding groove V38 along the axial direction through a sliding block V39 connected to the inner wall, and the sliding roller surface II 17 is in sliding fit with the sliding groove V40 along the axial direction through a sliding block V41 connected to the inner wall; an axial sliding groove seven 42 and an axial sliding groove eight 44 are arranged on the outer side wall of the bearing seat six 20, the sliding roller surface I13 is in sliding fit with the sliding groove seven 42 along the axial direction through a sliding block seven 43 connected to the inner wall, and the sliding roller surface II 17 is in sliding fit with the sliding groove eight 44 along the axial direction through a sliding block eight 45 connected to the inner wall; the outer side wall of the bearing seat III 6 is provided with an axial sliding groove nine 46 and an axial sliding groove ten 48, the static roller surface 14 is in sliding fit with the sliding groove nine 46 along the axial direction through a sliding block nine 47 connected to the inner wall, and the sliding roller surface II 17 is in sliding fit with the sliding groove ten 48 along the axial direction through a sliding block ten 49 connected to the inner wall; the outer side wall of the bearing seat II 5 is provided with an axial chute eleven 50 and a chute twelve 52, the sliding roller surface I13 is in sliding fit with the chute eleven 50 along the axial direction through a sliding block eleven 51 connected to the inner wall, and the static roller surface 14 is in sliding fit with the chute twelve 52 along the axial direction through a sliding block twelve 53 connected to the inner wall; an axial sliding groove thirteen 54 and a sliding groove fourteen 56 are arranged on the outer side wall of the bearing seat I4, the sliding roller surface I13 is in sliding fit with the sliding groove thirteen 54 along the axial direction through a sliding block thirteen 55 connected to the inner wall, and the sliding roller surface II 17 is in sliding fit with the sliding groove fourteen 56 along the axial direction through a sliding block fourteen 57 connected to the inner wall.
One side of the roller 30 is provided with a position sensor for detecting the positions of a first sliding roller surface 13, a second static roller surface 14 and a second sliding roller surface 17 on the roller 30 in the circumferential direction, and a distance measuring sensor 3 for measuring the distance between a transmission belt and the edges of the two sides of the roller 30 is arranged on a supporting plate which is sleeved outside a first bearing seat 4 in a sliding manner.
The driving roller assembly further comprises a controller for controlling the motor 12 and the driving cylinder to work, and the controller receives signals from the position sensor and the distance measuring sensor 3 and is used for judging when the first sliding roller surface and the second sliding roller surface rotate to the positions contacting with the transmission belt and whether the transmission belt deviates from the center position of the roller.
the working method of the driving roller assembly for deviation correction of the transmission belt comprises the following steps:
a. The transmission belt is sleeved in the center of the outer side of the roller 30, the motor 12 works to drive the transmission shaft 11 to rotate, the transmission shaft 11 drives the roller 30 to rotate, the roller 30 drives the transmission belt to rotate, and the first limiting block 26 and the second limiting block 27 limit the transmission belt;
b. If the distance measuring sensor 3 detects that the transmission belt deviates from the center of the roller 30 leftwards, when the sum of the contact surfaces of the transmission belt and the first sliding roller surface 13 and the second sliding roller surface 17 in rotation is larger than the contact surface of the transmission belt and the static roller surface 14, the deviation rectifying cylinder 1 drives the central shaft 7 to move rightwards, the central shaft 7 drives the first driving block 28 and the second driving block 29 to simultaneously move rightwards, the first driving block 28 drives the fourth bearing block 8 to move rightwards, the second driving block 29 drives the second bearing block 5 to move rightwards, the fourth bearing block 8 drives the first sliding roller surface 13 to move axially rightwards, and the second bearing block 5 drives the second sliding roller surface 17 to move axially rightwards, so that the; when the contact surface of the transmission belt and the static roller surface 14 in rotation is larger than the sum of the contact surfaces of the transmission belt and the sliding roller surface I13 and the sliding roller surface II 17, the deviation rectifying cylinder 1 drives the central shaft 7 to reset, the sliding roller surface I13 and the sliding roller surface II 17 reset under the action of the spring II 21 and the spring IV 23, and if the transmission belt is not moved to the central position of the roller 30 by the single action, the action of the step can be repeated;
c. If the distance measuring sensor 3 detects that the transmission belt deviates from the center of the roller 30 rightwards, when the sum of the contact surfaces of the transmission belt and the first sliding roller surface 13 and the second sliding roller surface 17 in rotation is larger than the contact surface of the transmission belt and the static roller surface 14, the deviation rectifying cylinder 1 drives the central shaft 7 to move leftwards, the central shaft 7 drives the first driving block 28 and the second driving block 29 to simultaneously move leftwards, the first driving block 28 drives the fifth bearing block 9 to move leftwards, the second driving block 29 drives the third bearing block 6 to move leftwards, the fifth bearing block 9 drives the second sliding roller surface 17 to axially move leftwards, and the third bearing block 6 drives the first sliding roller surface 13 to axially move leftwards, so that the transmission belt moves to; when the contact surface of the rotating transmission belt and the static roller surface 14 is larger than the sum of the contact surfaces of the transmission belt and the sliding roller surface I13 and the sliding roller surface II 17, the deviation rectifying cylinder 1 drives the central shaft 7 to reset, the sliding roller surface I13 and the sliding roller surface II 17 reset under the action of the spring I10 and the spring II 22, and if the transmission belt is not moved to the central position of the roller 30 by the single action, the action of the step can be repeated.
Preferably, in step b, when the first sliding roller surface 13 and the second sliding roller surface 17 are reset, the deviation rectifying cylinder 1 pushes the central shaft 7 to move leftward, so that the first driving block 28 drives the fifth bearing block 9 to move leftward, the second driving block 29 drives the third bearing block 6 to move leftward, the fifth bearing block 9 and the third bearing block 6 respectively drive the second sliding roller surface 17 and the first sliding roller surface 13 to move leftward and reset rapidly, and the first sliding roller surface 13 and the second sliding roller surface 17 are driven to reset by the second spring 21 and the fourth spring 23 together with the deviation rectifying cylinder 1, so that the resetting speed is increased.
Preferably, in step c, when the first sliding roller surface 13 and the second sliding roller surface 17 are reset, the deviation rectifying cylinder 1 pushes the central shaft 7 to move rightwards, the first driving block 28 drives the fourth bearing seat 8 to move rightwards, the second driving block 29 drives the second bearing seat 5 to move rightwards, the fourth bearing seat 8 and the second bearing seat 5 respectively drive the first sliding roller surface 13 and the second sliding roller surface 17 to move rightwards and reset quickly, and the first sliding roller surface 13 and the second sliding roller surface 17 are driven to reset by the first spring 10, the second spring 22 and the deviation rectifying cylinder 1 together, so that the resetting speed is increased.
example 2
The present embodiment differs from embodiment 1 in that: in the embodiment, a bearing seat four 8, a bearing seat five 9 and a driving block I28 are omitted, a bearing seat II 5 and a bearing seat III 6 are respectively and simultaneously fixedly connected with a sliding roller surface I13 and a sliding roller surface II 17, or the sliding roller surfaces I and II are integrated parts; the second bearing seat 5 and the third bearing seat 6 are driven by the second driving block 29 to move axially and drive each sliding roller surface so as to correct the deviation of the transmission belt, and the first sliding roller surface 13 and the second sliding roller surface 17 are driven to reset by the third spring 22 and the fourth spring 23.
example 3
The present embodiment differs from embodiment 1 in that: when the sum of the radian of the sections of the contact surfaces of the transmission belt and each sliding roller surface is more than or equal to 120 degrees, the sliding roller surfaces are controlled to act and carry out rectification so as to implement rectification; on the contrary, when the section radian of the contact surface of the transmission belt and the static roller surface is more than or equal to 120 degrees, the sliding roller surface is controlled to reset.
If a plurality of adjacent static roller surfaces exist, the sum of the radian of the sections of the static roller surfaces is at least 120 degrees, and can also be 150 degrees, 160 degrees or 180 degrees; if there is only one stationary roll surface, the arc of the cross-section is at least 120 °, 130 ° or 140 °.
if there are a plurality of adjacent sliding roller surfaces, the sum of the arc of the cross-section of each sliding roller surface is at least 120 °, and may also be 150 °, 180 °, 200 ° or 240 °.
The number of the sliding roller surfaces can be one, 3, 4, 6 or 8.
example 4
Referring to fig. 2 to 9, the driven roller assembly for correcting the deviation of the driving belt of the present embodiment includes: the device comprises a deviation rectifying cylinder 1, a connecting flange 2, a distance measuring sensor, a bearing seat I4, a bearing seat II 5, a bearing seat III 6, a central shaft 7, a bearing seat IV 8, a bearing seat V9, a spring I10, a sliding roller surface I13, a static roller surface 14, a sliding chute I15, a sliding block I16, a sliding roller surface II 17, a sliding chute II 18, a sliding block II 19, a bearing seat VI 20, a spring II 21, a spring III 22, a spring IV 23, a sliding chute 24, a supporting sleeve 25, a limiting block I26, a limiting block II 27, a driving block I28, a driving block II 29, a roller 30, a working cylinder 31, a right bearing seat 32, a left bearing seat 33, a sliding chute III 34, a sliding block III 35, a sliding chute IV 36, a sliding block IV 37, a sliding chute V38, a sliding block V39, a sliding chute VI 40, a sliding block VI 41, a sliding chute VII, a sliding block VII, a sliding chute VIII, eleven slide block 51, twelve slide grooves 52, twelve slide blocks 53, thirteen slide grooves 54, thirteen slide blocks 55, fourteen slide grooves 56, fourteen slide blocks 57 and a driven shaft 58.
The outer side surface of the cylindrical central shaft 7 is sequentially provided with a first bearing seat 4, a second bearing seat 5, a third bearing seat 6, a sixth bearing seat 20, a fourth bearing seat 8 and a fifth bearing seat 9 from right to left, the central shaft 7 is in sliding fit with the bearing seats, the left side of the central shaft 7 is provided with a driven shaft 58 sharing a central axis, the right end of the driven shaft 58 is fixedly connected with a cylindrical support sleeve 25 sharing the central axis, the support sleeve 25 is internally provided with a cylindrical sliding groove 24 with a right opening, the sliding groove 24 and the driven shaft 58 share the central axis, the left end of the central shaft 7 is in sliding fit with the sliding groove 24, a first spring 10 sleeved on the central shaft 7 is arranged between the support sleeve 25 and the adjacent end surface of the fifth bearing seat 9, a second spring 21 is arranged between the adjacent end surfaces of the fourth bearing seat 8 and the sixth bearing seat 20, the second spring 21 is sleeved on the outer side of the central, a spring IV 23 sleeved on the central shaft 7 is arranged between the adjacent end faces of the bearing seat II 5 and the bearing seat I4, a disc-shaped driving block I28 is arranged on the outer side face of the central shaft 7 between the bearing seat V9 and the bearing seat IV 8, a disc-shaped driving block II 29 is arranged on the outer side face of the central shaft 7 between the bearing seat III 6 and the bearing seat II 5, the bearing seat I4 is rotatably matched in a right bearing seat 32 on the right side of the bearing seat I, the left part of a driven shaft 58 is rotatably matched on a left bearing seat 33, a limiting block I26 is arranged on the inner side of the left bearing seat 33, a limiting block II 27 is arranged on the outer side of the right part of the bearing seat I4, the right end of the central shaft 7 is in transmission connection with a piston.
The hollow roller 30 is sleeved outside each bearing seat and the supporting sleeve 25, the section of the roller 30 is of a three-section annular structure and comprises a first sliding roller surface 13, a second static roller surface 14 and a second sliding roller surface 17, as shown in figures 2-8, the inner wall of the first static roller surface 14 is fixedly connected with the supporting sleeve 25 through a plurality of screws, the outer side surface of the supporting sleeve 25 is provided with a first sliding chute 15 and a second sliding chute 18, the first sliding chute 15 and the second sliding chute 18 are arranged along the axial direction of the supporting sleeve 25, a first sliding block 16 is respectively matched in each sliding chute 15 in a sliding way, a second sliding block 19 is respectively matched in each sliding chute 18 in a sliding way, each first sliding block 16 is respectively fixedly connected with the inner wall of the first sliding roller surface 13 through a screw, each second sliding block 19 is respectively fixedly connected with the inner wall of the second sliding roller surface 17 through a screw, the first sliding chute 15 and the second sliding chute 19 are both arranged along the axial direction of the supporting sleeve 25, a limiting rib arranged on the inner, the sliding block is prevented from being separated from the sliding groove in rotation.
The bearing seat I4 and the bearing seat II 20 are fixedly connected with the inner wall of the static roller surface 14, the bearing seat III 6 and the bearing seat IV 8 are fixedly connected with the inner wall of the sliding roller surface I13, the bearing seat II 5 and the bearing seat V9 are fixedly connected with the inner wall of the sliding roller surface II 17, and when the central shaft 7 drives the driving block I28 and the driving block II 29 to move axially, the bearing seat I6 and the bearing seat IV 8 are suitable for driving the sliding roller surface I13 to move axially or the bearing seat II 5 and the bearing seat V9 are suitable for driving the sliding roller surface II 17 to move axially.
The outer side wall of the bearing seat five 9 is provided with an axial sliding groove three 34 and a sliding groove four 36, the sliding roller surface one 13 is in sliding fit with the sliding groove three 34 along the axial direction through a sliding block three 35 connected to the inner wall, and the static roller surface 14 is in sliding fit with the sliding groove four 36 along the axial direction through a sliding block four 37 connected to the inner wall; the outer side wall of the bearing seat IV 8 is provided with an axial sliding groove V38 and an axial sliding groove V40, the static roller surface 14 is in sliding fit with the sliding groove V38 along the axial direction through a sliding block V39 connected to the inner wall, and the sliding roller surface II 17 is in sliding fit with the sliding groove V40 along the axial direction through a sliding block V41 connected to the inner wall; an axial sliding groove seven 42 and an axial sliding groove eight 44 are arranged on the outer side wall of the bearing seat six 20, the sliding roller surface I13 is in sliding fit with the sliding groove seven 42 along the axial direction through a sliding block seven 43 connected to the inner wall, and the sliding roller surface II 17 is in sliding fit with the sliding groove eight 44 along the axial direction through a sliding block eight 45 connected to the inner wall; the outer side wall of the bearing seat III 6 is provided with an axial sliding groove nine 46 and an axial sliding groove ten 48, the static roller surface 14 is in sliding fit with the sliding groove nine 46 along the axial direction through a sliding block nine 47 connected to the inner wall, and the sliding roller surface II 17 is in sliding fit with the sliding groove ten 48 along the axial direction through a sliding block ten 49 connected to the inner wall; the outer side wall of the bearing seat II 5 is provided with an axial chute eleven 50 and a chute twelve 52, the sliding roller surface I13 is in sliding fit with the chute eleven 50 along the axial direction through a sliding block eleven 51 connected to the inner wall, and the static roller surface 14 is in sliding fit with the chute twelve 52 along the axial direction through a sliding block twelve 53 connected to the inner wall; an axial sliding groove thirteen 54 and a sliding groove fourteen 56 are arranged on the outer side wall of the bearing seat I4, the sliding roller surface I13 is in sliding fit with the sliding groove thirteen 54 along the axial direction through a sliding block thirteen 55 connected to the inner wall, and the sliding roller surface II 17 is in sliding fit with the sliding groove fourteen 56 along the axial direction through a sliding block fourteen 57 connected to the inner wall.
One side of the roller 30 is provided with a position sensor for detecting the positions of a first sliding roller surface 13, a second static roller surface 14 and a second sliding roller surface 17 on the roller 30 in the circumferential direction, and a distance measuring sensor for measuring the distance between a transmission belt and the edges of the two sides of the roller 30 is arranged on a supporting plate which is sleeved outside the first bearing block 4 in a sliding manner.
The driven roller assembly further comprises a controller used for driving the cylinder to work, the controller receives signals from the position sensor and the distance measuring sensor and is used for judging when the first sliding roller surface and the second sliding roller surface rotate to the positions contacted with the transmission belt and whether the transmission belt deviates from the center of the roller.
the working method of the driven roller assembly for deviation correction of the transmission belt comprises the following steps:
a. Sleeving a driving belt on the center of the outer side of a roller 30 of a driven roller assembly and a driving roller (the driving roller can be the driving roller described in embodiment 1, and can also be a conventional driving roller in the prior art), driving the roller 30 of the driven roller assembly to rotate by the driving roller, and limiting the driving belt by a first limiting block 26 and a second limiting block 27;
b. if the distance measuring sensor detects that the transmission belt deviates from the center of the roller 30 leftwards, when the sum of the contact surfaces of the transmission belt in rotation, the first sliding roller surface 13 and the second sliding roller surface 17 is larger than the contact surface of the transmission belt and the static roller surface 14, the deviation rectifying cylinder 1 drives the central shaft 7 to move rightwards, the central shaft 7 drives the first driving block 28 and the second driving block 29 to simultaneously move rightwards, the first driving block 28 drives the fourth bearing block 8 to move rightwards, the second driving block 29 drives the second bearing block 5 to move rightwards, the fourth bearing block 8 drives the first sliding roller surface 13 to move rightwards axially, and the second bearing block 5 drives the second sliding roller surface; when the contact surface of the transmission belt and the static roller surface 14 in rotation is larger than the sum of the contact surfaces of the transmission belt and the first sliding roller surface 13 and the second sliding roller surface 17, the deviation rectifying cylinder 1 drives the central shaft 7 to reset, and the first sliding roller surface 13 and the second sliding roller surface 17 reset under the action of the second spring 21 and the fourth spring 23; repeating the steps until the transmission belt moves to the central position of the roller 30;
c. If the distance measuring sensor 3 detects that the transmission belt deviates from the center of the roller 30 rightwards, when the sum of the contact surfaces of the transmission belt and the first sliding roller surface 13 and the second sliding roller surface 17 in rotation is larger than the contact surface of the transmission belt and the static roller surface 14, the deviation rectifying cylinder 1 drives the central shaft 7 to move leftwards, the central shaft 7 drives the first driving block 28 and the second driving block 29 to simultaneously move leftwards, the first driving block 28 drives the fifth bearing block 9 to move leftwards, the second driving block 29 drives the third bearing block 6 to move leftwards, the fifth bearing block 9 drives the second sliding roller surface 17 to axially move leftwards, and the third bearing block 6 drives the first sliding roller surface 13 to axially move; when the contact surface of the transmission belt and the static roller surface 14 in rotation is larger than the sum of the contact surfaces of the transmission belt and the first sliding roller surface 13 and the second sliding roller surface 17, the deviation rectifying cylinder 1 drives the central shaft 7 to reset, the first sliding roller surface 13 and the second sliding roller surface 17 reset under the action of the first spring 10 and the second spring 22, and the step is repeated until the transmission belt moves to the central position of the roller 30.
Preferably, in step b, when the first sliding roller surface 13 and the second sliding roller surface 17 are reset, the deviation rectifying cylinder 1 pushes the central shaft 7 to move leftward, so that the first driving block 28 drives the fifth bearing block 9 to move leftward, the second driving block 29 drives the third bearing block 6 to move leftward, the fifth bearing block 9 and the third bearing block 6 respectively drive the second sliding roller surface 17 and the first sliding roller surface 13 to move leftward and reset rapidly, and the first sliding roller surface 13 and the second sliding roller surface 17 are driven to reset by the second spring 21 and the fourth spring 23 together with the deviation rectifying cylinder 1, so that the resetting speed is increased.
Preferably, in step c, when the first sliding roller surface 13 and the second sliding roller surface 17 are reset, the deviation rectifying cylinder 1 pushes the central shaft 7 to move rightwards, the first driving block 28 drives the fourth bearing seat 8 to move rightwards, the second driving block 29 drives the second bearing seat 5 to move rightwards, the fourth bearing seat 8 and the second bearing seat 5 respectively drive the first sliding roller surface 13 and the second sliding roller surface 17 to move rightwards and reset quickly, and the first sliding roller surface 13 and the second sliding roller surface 17 are driven to reset by the first spring 10, the second spring 22 and the deviation rectifying cylinder 1 together, so that the resetting speed is increased.
the outer sides of the right bearing seat 32 and the left bearing seat 33 of the driven roller assembly are respectively connected with a working cylinder 31 (a hydraulic cylinder, a linear motor and the like can be adopted) for driving the driven roller assembly to move so as to adjust the tension degree of the transmission belt.
Example 5
The driven roller assembly of the present embodiment is different from embodiment 4 in that: in the embodiment, a bearing seat four 8, a bearing seat five 9 and a driving block I28 are omitted, a bearing seat II 5 and a bearing seat III 6 are respectively and simultaneously fixedly connected with a sliding roller surface I13 and a sliding roller surface II 17, or the sliding roller surfaces I and II are integrated parts; the second bearing seat 5 and the third bearing seat 6 are driven by the second driving block 29 to move axially and drive each sliding roller surface so as to correct the deviation of the transmission belt, and the first sliding roller surface 13 and the second sliding roller surface 17 are driven to reset by the third spring 22 and the fourth spring 23.
Example 6
The driven roller assembly of the embodiment is different from the driven roller assembly of the embodiment 5 in that: when the sum of the radian of the sections of the contact surfaces of the transmission belt and each sliding roller surface is more than or equal to 120 degrees, the sliding roller surfaces are controlled to act and carry out rectification so as to implement rectification; on the contrary, when the section radian of the contact surface of the transmission belt and the static roller surface is more than or equal to 120 degrees, the sliding roller surface is controlled to reset.
If a plurality of adjacent static roller surfaces exist, the sum of the radian of the sections of the static roller surfaces is at least 120 degrees, and can also be 150 degrees, 160 degrees or 180 degrees; if there is only one stationary roll surface, the arc of the cross-section is at least 120 °, 130 ° or 140 °.
If there are a plurality of adjacent sliding roller surfaces, the sum of the arc of the cross-section of each sliding roller surface is at least 120 °, and may also be 150 °, 180 °, 200 ° or 240 °.
the number of the sliding roller surfaces can be one, 3, 4, 6 or 8.
Example 7
The drive belt deviation correcting system of the embodiment comprises: a drive roller assembly as in one of examples 1-3 and a driven roller assembly as in one of examples 4-6. The driving belt is sleeved on the rollers of the driving roller assembly and the driven roller assembly. The tension of the belt is adjusted by controlling the pair of cylinders 31.
example 8
the drive belt deviation correcting system of the embodiment comprises: conventional drive rolls of the prior art and a driven roll cartridge assembly as described in one of examples 4-6. The transmission belt is sleeved on the rollers of the conventional driving roller and driven roller assembly. The tension of the belt is adjusted by controlling the pair of cylinders 31. When the driving belt deviates, the adjustment can be implemented only by the driven roller assembly, and the deviation rectification is implemented.
example 9
The drive belt deviation correcting system of the embodiment comprises: a drive roller assembly as described in one of examples 1-3 and a conventional passive roller of the prior art. The driving belt is sleeved on the roller of the driving roller assembly and the conventional driven roller. When the driving belt deviates, the driving roller assembly can be used for adjusting to correct the deviation.
it should be understood that the above examples are only for clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And such obvious variations or modifications which fall within the spirit of the invention are intended to be covered by the scope of the present invention.