Self-adaptive device for deviation rectification of transmission steel belt and working method of self-adaptive device

Abstract

The invention relates to a self-adaptive device for deviation rectification of a transmission steel belt and a working method of the self-adaptive device, and belongs to the field of automatic equipment transmission. The device comprises a first roller, a steel belt, a first wall plate, a second roller, a second wall plate and two sets of self-adaptive deviation rectifying mechanisms, the steel belt is wound on the first roller and the second roller and makes contact with the top face of the first wall plate and the top face of the second wall plate, the two sets of self-adaptive deviation rectifying mechanisms are installed on the two sides of the steel belt correspondingly, and each set of self-adaptive deviation rectifying mechanism comprises a first screw and a second screw. A first deviation rectifying seat, a second screw, a spring, a second deviation rectifying seat, a deviation rectifying roller assembly, a deviation rectifying rod, a pressing wheel plate and an induction wheel assembly are included, the deviation rectifying roller assembly is installed on the deviation rectifying rod, the pressing wheel plate is fixed to the lower portion of the deviation rectifying rod, and the induction wheel assembly is fixed to the pressing wheel plate; the first screw penetrates through the correcting vertical rod and is connected with the second screw through the spring, and the second screw is fixed to the second wall plate. The deviation rectifying device is compact and reasonable in structural design, small in occupied equipment space and convenient to install and debug, deviation rectifying action can be completed through the mechanism and the steel belt, and use requirements are met.

Description

Technical Field

[0001] This invention relates to an apparatus and a method, and more particularly to an adaptive device for correcting the deviation of a transmission steel belt and its operating method, which belongs to the field of automated equipment transmission. Background Technology

[0002] Belt drives are the most common type of equipment used in automation. Belt correction during operation is essential, as the stability of the belt drive directly affects the conveying performance of the entire equipment. The belt correction device is a key component in this process.

[0003] Commonly used correction methods include: guide bar guidance, visual inspection + manual adjustment, and sensor + mechanical mechanism driven correction device. Manual adjustment has low precision and cannot meet the needs of conveying equipment with high precision requirements; the guide bar guidance method can lead to wear of the guide bar and steel belt due to prolonged local contact time, affecting the conveying accuracy of the steel belt.

[0004] The disadvantages of manual adjustment correction method are as follows: This method has a simple structure and is easy to operate, but it requires regular manual inspection and adjustment, which cannot meet the needs of real-time adjustment correction during high-speed transmission.

[0005] The industry commonly uses sensor detection + mechanical mechanism drive correction method. The disadvantages of this correction method are as follows: (1) High cost and complex structure. Real-time monitoring is required. The system needs to process data and make adjustments quickly. The sensor detects the position of one side to pick up the position deviation signal and then feeds the position deviation signal back to the system control unit. After the control unit processes the signal, it sends an instruction to the drive mechanism to drive the external actuator to correct the offset of the transmission belt and thus control the linear motion. (2) The accuracy of the sensor and the response time of the system directly affect the timely adjustment of the correction wheel of the drive mechanism to quickly correct the steel belt. The performance of the correction unit is greatly affected by factors such as the accuracy error of the sensor, the stability of the driving force of the drive unit, and the response time of the mechanism. This affects the steel belt correction, which is delayed and unstable, and ultimately affects the accuracy error of the conveying and the subsequent processing accuracy. (3) Since the actuator is a mechanical transmission, the response time from detection to correction is long and cannot meet the correction requirements of the belt in high-speed transmission. The actuator is generally composed of cylinders or motors driving screws and other parts. It is large in size, occupies equipment space, and increases the maintenance cost in the later stage. Summary of the Invention

[0006] The purpose of this invention is to overcome the above-mentioned shortcomings in the prior art and to provide an adaptive device and its working method for correcting the deviation of a transmission steel belt, which has a compact and reasonable structural design, is safe and reliable, occupies little equipment space, is easy to install and debug, and can complete the correction action through its own parts and steel belt.

[0007] The technical solution adopted by the present invention to solve the above problems is as follows: An adaptive device for correcting the deviation of a transmission steel belt includes a first roller, a steel belt, a first wall plate, a second roller, and a second wall plate. The steel belt is wound around the first roller and the second roller, and the steel belt contacts the top surfaces of the first and second wall plates. The device is characterized by further including two sets of adaptive correction mechanisms, which are respectively installed on both sides of the steel belt. Each adaptive correction mechanism includes a correction vertical rod, a first screw, a correction seat, a correction horizontal rod, a second screw, a spring, a correction seat, a correction roller assembly, a correction rod, a pressure plate, and a sensing wheel assembly. The upper end of the correction vertical rod is connected to the correction horizontal rod, and the lower end of the correction vertical rod is connected to the correction rod. The correction horizontal rod is installed on the first correction seat. The second correction base can rotate freely around its axis. The correction roller assembly is mounted on the correction rod and rotates around its axis. The pressure roller plate is fixed below the correction rod. The induction wheel assembly is fixed to the pressure roller plate by threads on the induction wheel shaft and can rotate along its own axis, and can also slide along the axis. Screw 1 passes through the correction vertical rod and is connected to screw 2 by a spring. Screw 2 is fixed to wall plate 2. The induction wheel assembly includes an induction wheel, a bushing, and an induction wheel shaft. The bushing is mounted on the induction wheel shaft. The inner ring of the bushing mates with the induction wheel shaft, and the outer ring of the bushing mates with the induction wheel. The induction wheel rotates around the induction wheel shaft through the gap between the bushing and the induction wheel and can move up and down. This makes the induction wheel less labor-intensive and reduces friction loss when rotating.

[0008] This invention relates to a method for automatically correcting the deviation of a steel belt on a drum-shaped roller by finely adjusting the steel belt tension; and a method for operating an adaptive device for correcting the deviation of a transmission steel belt. The method is characterized by the following: the steel belt wraps around two drum-shaped rollers (one and two). When the steel belt moves forward and shifts to one side, it moves towards and contacts the induction wheel. The lateral force generated by the steel belt pushes the induction wheel and drives the entire adaptive correction mechanism to rotate counterclockwise along the axis of the correction crossbar. At this time, the correction wheel rotates with the adaptive correction mechanism. When the axis of the correction wheel forms a certain angle with the horizontal plane, the outer surface of the inner end of the correction wheel contacts the steel belt. The steel belt continues to move towards the induction wheel. The larger the rotation angle of the adaptive correction mechanism, the larger the tilt angle of the correction wheel, and the greater the pressure applied to the steel belt, the greater the tension generated on the offset side of the steel belt. At this time, the tension on both sides of the steel belt is uneven. Due to the influence of the structure of rollers one and two and continued operation, the steel belt will move towards the side with less tension until the tension on both sides reaches equilibrium. The steel belt automatically moves to the center of the rollers, achieving automatic correction.

[0009] Preferably, in this invention, the induction wheel can rotate and move up and down along its own axis. When it comes into contact with the steel belt, it also begins to rotate under the action of friction. At the same time, the structure of the induction wheel generates an upward force, forcing the induction wheel to move upward. Rotation and sliding occur between the induction wheel and the bushing, effectively reducing wear.

[0010] Preferably, in this invention, after the steel strip moves towards the side with less tension after being corrected, the adaptive correction mechanism moves towards the wall panel under the action of spring tension, and stops moving after the screw contacts the wall panel.

[0011] Compared with the prior art, the present invention has the following advantages and effects: (1) The overall structure is compact and reasonable, safe and reliable, and occupies little equipment space. By adding a set of adaptive devices on both sides of the steel belt, the running steel belt is adjusted in real time; (2) Since the correction roller in the adaptive correction mechanism is always in contact with the steel belt, when the steel belt deviates, the response time for correction adjustment is very short and almost simultaneous; Since the roller and the steel belt are in rolling contact, the friction force is small, which increases the service life of the steel belt and has little impact on the conveying accuracy of the steel belt during operation; (3) By using the adaptive correction mechanism arranged on both sides of the transmission steel belt, the two correction rollers are cleverly used to apply pressure to the steel belt under different working conditions, so that the tension on both sides of the steel belt is different. By using the characteristic that the steel belt will move towards the direction with less tension when it is driven, the steel belt will automatically return to the correct position during the movement, so as to achieve the purpose of correction. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the main structure of an embodiment of the present invention.

[0013] Figure 2 This is a schematic diagram of the internal cross-sectional structure of an embodiment of the present invention.

[0014] Figure 3 This is a three-dimensional structural schematic diagram of an embodiment of the present invention.

[0015] Figure 4 This is a three-dimensional structural diagram of the adaptive correction mechanism in an embodiment of the present invention.

[0016] Figure 5 This is a schematic diagram of the induction wheel assembly in an embodiment of the present invention.

[0017] Figure 6 A schematic diagram of steel strip misalignment in an embodiment of the present invention.

[0018] Figure 7 Automatic correction illustration in this embodiment of the invention Figure 1 .

[0019] Figure 8 Automatic correction illustration in this embodiment of the invention Figure 2 .

[0020] Figure 9 Schematic diagram of force analysis of the adaptive device in this embodiment of the invention Figure 1 .

[0021] Figure 10 Schematic diagram of force analysis of the adaptive device in this embodiment of the invention Figure 2 .

[0022] Figure 11 Schematic diagram of force analysis of the adaptive device in this embodiment of the invention Figure 3 .

[0023] In the diagram: Roller 1, Steel strip 2, Wall panel 1, Adaptive correction mechanism 4, Roller 2, Wall panel 2, Angle δ; Adaptive correction mechanism 4: correction vertical rod 8, screw one 9, correction seat one 10, correction horizontal rod 11, screw two 12, spring 13, correction seat two 14, correction roller assembly 15, correction rod 16, pressure roller plate 17. Induction wheel assembly 20: Induction wheel 7, bushing 18, induction wheel shaft 19. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. The following embodiments are explanations of the present invention, but the present invention is not limited to the following embodiments.

[0025] Example.

[0026] See Figures 1 to 11 The adaptive device for correcting the deviation of the transmission steel belt in this embodiment includes roller 1, steel belt 2, wall plate 3, roller 5, wall plate 6, and two sets of adaptive correction mechanisms 4. The steel belt 2 surrounds roller 1 and roller 5, which are fixed on the frame. The steel belt 2 is in contact with the top surface of wall plate 3 and wall plate 6. Two sets of adaptive correction mechanisms 4 are installed on both sides of the wall plate (wall plate 3 and wall plate 6).

[0027] Two sets of adaptive correction mechanisms 4 are installed on both sides of the steel belt 2 respectively. Each set of adaptive correction mechanism 4 includes a correction vertical rod 8, a screw 9, a correction seat 10, a correction horizontal rod 11, a screw 12, a spring 13, a correction seat 14, a correction roller assembly 15, a correction rod 16, a pressure plate 17 and a sensing wheel assembly 20. The upper end of the correction vertical rod 8 is connected to the correction horizontal rod 11, and the lower end of the correction vertical rod 8 is connected to the correction rod 16. In use, the first correction seat 10 and the second correction seat 14 are fixed on the second wall plate 6 (the first wall plate 3). The correction crossbar 11 is installed on the first correction seat 10 and the second correction seat 14 and can rotate freely around the axis. The correction roller assembly 15 is installed on the correction rod 16 and rotates around the axis of the correction roller assembly 15. The pressure roller plate 17 is fixed below the correction rod 16. The sensing wheel assembly 20 is fixed to the pressure roller plate 17 by the thread on the sensing wheel shaft 19 and can rotate and move axially along its own axis. The two ends of the spring 13 are fixed to the second screw 12 and the first screw 9, respectively. The second screw 12 is fixed on the second wall plate 6 (the first wall plate 3), and the first screw 9 is fixed on the correction vertical rod 8.

[0028] In this embodiment, the sensing wheel assembly 20 includes a sensing wheel 7, a bushing 18, and a sensing wheel shaft 19. The bushing 18 is mounted on the sensing wheel shaft 19. The inner ring of the bushing 18 mates with the sensing wheel shaft 19, and the outer ring of the bushing 18 mates with the sensing wheel 7. The sensing wheel 7 rotates around the sensing wheel shaft 19 and moves axially through the bushing 18, so that the sensing wheel 7 can reduce effort and friction loss when rotating.

[0029] In this embodiment, the induction wheel 7 adopts a V-shaped structure; the outer surfaces of roller 1 and roller 2 are both drum-shaped structures.

[0030] In this embodiment, the correction roller 15 adopts an arc-shaped drum structure, so that the steel belt 2 and the correction roller 15 make line contact, which reduces the problem of large local area stress when the steel belt is compressed, and reduces the deformation and friction loss of the steel belt.

[0031] The working process of the adaptive device for correcting the deviation of the transmission steel belt in this embodiment is as follows: During normal operation, the steel belt 2 is wrapped around the drum-shaped roller 1 and roller 5 at both ends of the frame, and the adaptive correction mechanism 4 is installed on both sides of the steel belt 2. When operating normally and the tension on both sides of the steel belt is the same, the steel belt runs smoothly without any left or right deviation; the correction roller assembly 15 in the adaptive correction mechanism 4 does not contact the steel belt 2 and does not play a correction role.

[0032] Because the outer surface of the rollers has a drum-shaped structure, the surface structure causes the steel belt to generate a reverse force (restoring force) when it deviates, forcing the steel belt back to the center position. In actual use, due to errors in parts manufacturing and installation, when the axes of the two rollers are not parallel, the steel belt will move towards the side with less force, resulting in conveying deviation of the entire structure. To facilitate installation and debugging, adjustment devices are designed at both ends of the rollers on the frame. By adjusting the adjustment mechanisms at both ends of the rollers, the axes of the two rollers are kept relatively parallel, so that the steel belt is in the center position of the rollers. In this embodiment, due to manufacturing errors of the steel belt and uneven force on both sides of the steel belt during use, the steel belt still deviates during operation. To address this phenomenon, an auxiliary correction device is added to ensure that the steel belt runs in the center of the drum-shaped rollers.

[0033] When steel strip 2 moves forward and causes a lateral shift (such as...) Figures 6-7As shown, steel belt 2 moves towards induction wheel 7 and contacts it. The lateral force generated by steel belt 2 pushes induction wheel 7 and drives the entire adaptive correction mechanism 4 to rotate counterclockwise along correction crossbar 11. At this time, correction wheel 15 follows the rotation of adaptive correction mechanism 4. When the axis of correction wheel 15 forms a certain angle δ with the horizontal plane, the inner outer surface of correction wheel 15 contacts steel belt 2. Steel belt 2 continues to move towards induction wheel 7. The larger the rotation angle of adaptive correction mechanism 4, the larger the tilt angle of correction wheel 15, and the greater the pressure applied to steel belt 2, the greater the tension generated on the offset side of steel belt 2. At this time, the tension on both sides of steel belt 2 is uneven. Affected by the structure of rollers 2 and 5 and continued operation, steel belt 2 will move towards the side with less tension until the tension on both sides reaches equilibrium. Steel belt 2 automatically moves to the center of rollers to achieve automatic correction.

[0034] Force analysis of the adaptive device: like Figure 9 As shown, when the steel belt deviates by a certain angle β during operation, the steel belt pushes the induction wheel on the deviated side and drives the correction wheel to rotate through an angle δ, causing the correction wheel to press the steel belt downward; F is the pressure applied by the correction wheel to the steel belt, and ΔL is the downward pressing distance.

[0035] As the straightening wheel presses down on the steel belt during operation, the pressed part undergoes slight deformation. The steel belt elongates at the position of the straightening wheel, and remains almost unchanged at the position away from the straightening wheel. As the steel belt continues to run past the drum roller, due to the influence of the mechanism, a lateral tension is generated inside the steel belt, pulling the steel belt back to the center position. The force analysis is as follows.

[0036] Under normal circumstances, the steel belt experiences equal force on both sides during operation, and there is no deviation in the steel belt. Figure 10 As shown.

[0037] The force on the steel strip at this moment: Ft1=Ft2 Where Ft = F*Sinα Ft1 / Ft2 — Tangential component force F1 / F2 --- The resultant force generated by the tension on the steel strip Fn1 / Fn2—The positive pressure generated by the tension of the steel belt on the drum roller. α — Angle between the drum roller and the belt When the steel belt deviates due to external factors, the self-adaptive device of the steel belt begins to function, and the force is as follows: Figure 11 As shown.

[0038] At this point, the steel strip shifts downwards as shown in the diagram. Under the action of the correction wheel in the adaptive device, the steel strip is compressed, increasing the tension. This leads to an increase in the resultant force F2, resulting in an increase in the tangential component force Ft2 and an increase in the axial component force, i.e.: Ft2>Ft1 Under the action of the axial force, the steel strip moves upward (to the center position) until the tension on both sides is approximately the same. Then, the steel strip 2 automatically moves to the center of the roller and runs, realizing automatic correction.

[0039] Conversely, when steel strip 2 shifts to the other side, the adaptive device on the shifted side corrects the deviation. The principle and operation are the same, so they will not be described here.

[0040] Since the induction wheel 7 can rotate and move along its own axis, it also begins to rotate and move upward under the action of friction when it comes into contact with the steel belt 2, which avoids the phenomenon of local wear of the steel belt 2 and the induction wheel 7 and extends the service life of the steel belt 2 and the induction wheel 7.

[0041] See Figure 8 As shown, after the steel belt 2 moves to the side with less tension after being corrected, the adaptive correction mechanism 4 moves towards the wall panel under the action of the spring 13, and stops moving after the screw 9 contacts the wall panel.

[0042] Existing sensor and drive mechanism correction methods require sensors to monitor in real time and feed the detection data back to the control unit for processing. For parts with high conveying accuracy requirements, high-precision detection sensors are needed, which is costly. Secondly, the control unit sends the processed data instructions to the actuator of the drive unit, which then pushes the roller-like parts used for correction to perform correction. The response time is long and cannot perform real-time dynamic correction.

[0043] During operation, transmission steel belts are prone to deviation due to issues in processing, manufacturing, and installation, affecting transmission accuracy. This embodiment addresses this by using an adaptive correction mechanism 4 installed on the equipment to perform real-time correction and adjustment of the steel belt 2 through its own relative motion.

[0044] The adaptive correction mechanism 4 in this embodiment is described as follows: 1) It is composed of simple mechanical parts, has a relatively regular shape, is easy to process, and has a compact, simple overall structure that is easy to install and debug; 2) When the steel belt 2 is running at high speed, no additional monitoring or human intervention is required, and the correction action can be completed by the parts of its own mechanism and the steel belt 2.

[0045] Based on the above description, those skilled in the art are already able to implement it.

[0046] Furthermore, it should be noted that the specific embodiments described in this specification may differ in the shape and name of their parts and components. The above description is merely illustrative of the structure of the present invention. All equivalent or simple variations made based on the structure, features, and principles described in this patent concept are included within the protection scope of this patent. Those skilled in the art can make various modifications or additions to the described specific embodiments or use similar methods to substitute them, as long as they do not deviate from the structure of the present invention or exceed the scope defined in these claims, all of which should fall within the protection scope of this invention.

Claims

1. An adaptive device for correcting the deviation of a transmission steel belt, comprising a first roller (1), a steel belt (2), a first wall plate (3), a second roller (5), and a second wall plate (6), wherein the steel belt (2) is wound around the first roller (1) and the second roller (5), and the steel belt (2) is in contact with the top surfaces of the first wall plate (3) and the second wall plate (6), characterized in that: It also includes two sets of adaptive correction mechanisms (4), which are respectively installed on both sides of the steel belt (2). Each set of adaptive correction mechanisms (4) includes a correction vertical rod (8), a screw (9), a correction seat (10), a correction horizontal rod (11), a screw (12), a spring (13), a correction seat (14), a correction roller assembly (15), a correction rod (16), a pressure plate (17), and a sensing wheel assembly (20). The upper end of the correction vertical rod (8) is connected to the correction horizontal rod (11), and the lower end of the correction vertical rod (8) is connected to the correction rod (16). The correction horizontal rod (11) is installed on the correction seat (10) and the correction seat (14) and can rotate freely around the axis. The correction roller assembly (15) is installed on the correction rod (16) and rotates around the axis. Rotate, pressure plate (17) is fixed below correction rod (16), induction wheel assembly (20) is fixed to pressure plate (17) by thread on induction wheel shaft (19), and can rotate along its own axis, and can also slide along the axis line; screw one (9) passes through correction vertical rod (8) and is connected to screw two (12) through spring (13), and screw two (12) is fixed to wall plate two (6); induction wheel assembly (20) includes induction wheel (7), bushing (18) and induction wheel shaft (19), bushing (18) is installed on induction wheel shaft (19), inner ring of bushing (18) is engaged with induction wheel shaft (19), outer ring of bushing (18) is engaged with induction wheel (7), induction wheel (7) rotates around induction wheel shaft (19) through bushing (18) and can move up and down.

2. A method for operating an adaptive device for correcting the deviation of a transmission steel belt, comprising the adaptive device for correcting the deviation of a transmission steel belt as described in claim 1, characterized in that: The specific steps are as follows: The steel belt (2) is wrapped around the drum-shaped rollers 1 (1) and 2 (5) at both ends. When the steel belt (2) moves forward and causes a lateral offset, the steel belt (2) moves towards the induction wheel (7) and contacts the induction wheel (7). The lateral force generated by the steel belt (2) pushes the induction wheel (7) and drives the entire adaptive correction mechanism (4) to rotate counterclockwise along the axis of the correction crossbar (11). At this time, the correction wheel (15) rotates with the adaptive correction mechanism (4). When the axis of the correction wheel (15) forms a certain angle with the horizontal plane, the correction wheel (15) rotates. The inner end outer circle of the steel belt (2) contacts the steel belt (2). The steel belt (2) continues to move towards the induction wheel (7). The larger the rotation angle of the adaptive correction mechanism (4), the larger the tilt angle of the correction wheel (15), and the greater the pressure applied to the steel belt (2). The greater the tension generated on the offset side of the steel belt (2). At this time, the tension on both sides of the steel belt (2) is uneven. Due to the influence of the structure of roller one (1) and roller two (5) and the continued operation, the steel belt (2) will move to the side with less tension until the tension on both sides reaches equilibrium. The steel belt (2) automatically moves to the center of the roller and runs to achieve automatic correction.

3. The working method of the adaptive device for correcting the deviation of a transmission steel belt according to claim 2, characterized in that: The induction wheel (7) can rotate and move up and down along its own axis. When it comes into contact with the steel belt (2), it also begins to rotate under the action of friction.

4. The working method of the adaptive device for correcting the deviation of a transmission steel belt according to claim 2, characterized in that: After the steel strip (2) moves to the side with less tension after being corrected, the adaptive correction mechanism (4) moves towards the wall panel under the action of the spring (13) and stops moving after the screw (9) contacts the wall panel.

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