Self-moving frequency conversion intelligent tensioning machine tail

Abstract

The present application relates to the technical field of conveying, and discloses a self-moving variable-frequency intelligent tensioning machine tail, which comprises a rack, the rack comprises a rack body and a frame fixed outside the rack body, further comprises a front shell body detachably arranged at the end of the rack body, a tensioning mechanism arranged in the front shell body and used for tensioning a transmission belt, and an adjusting mechanism arranged outside the frame and symmetric to the center point of the rack body, and the adjusting mechanism is used for cooperating with the tensioning mechanism to right the deviated transmission belt, the tensioning mechanism is used for driving the roller to move through the pulling assembly, so as to tension the transmission belt, and the transmission belt and the roller are limited through the limiting assembly after tensioning is completed, the stability of tensioning is improved, the stability of conveying is improved, and the limiting idle gear is arranged to make the roller move back and make the transmission belt relatively loose, so that the adjusting mechanism is used for righting the deviated transmission belt, and the stability of conveying is further improved.

Description

Technical Field

[0001] This invention relates to the field of conveying technology, specifically to a self-moving variable frequency intelligent tensioning tail section. Background Technology

[0002] When in use, the self-moving tail section is positioned close to the transfer conveyor, allowing the transfer conveyor to transfer coal and other materials collected from the fully mechanized mining face onto the self-moving tail section. These materials are then transported to a designated location via a conveyor belt. The self-moving tail section allows the conveyor belt to move forward according to the excavation of the fully mechanized mining face, thereby improving mining efficiency. During self-movement, the self-moving tail section first releases the wound conveyor belt through the winding assembly, loosening it. Then, the tail section and the track move forward alternately via the guide rails and hydraulic rods at the bottom of the self-moving tail section, achieving self-movement. After self-movement, the winding assembly winds up and tensions the released conveyor belt for subsequent transport. However, relying solely on the winding assembly to tension the conveyor belt provides insufficient tension strength and cannot meet the actual conveying requirements of the self-moving tail section during operation.

[0003] CN206013699U discloses a self-moving tail-type self-controlled hydraulic tensioning device. The problem raised in the background technology is that the control system of the existing hydraulic tensioning device for belt conveyors cannot achieve fully automatic tensioning. It can achieve fully automatic tensioning by using a hydraulic winch, a high-pressure resistant proximity switch and a tensioning trolley limit switch to automatically control the tensioning stroke of the conveyor belt within a certain range.

[0004] Based on existing technologies, the following problems exist:

[0005] In existing technologies, although conveyor belts can be tensioned using winches and wire ropes, the long length of the conveyor belt makes it prone to deviation during actual use, affecting the stability of the conveyor belt. After tensioning, it is difficult to adjust the conveyor belt to straighten it, and the tensioning and straightening mechanisms cannot work together to adjust the conveyor belt and meet the tensioning and straightening requirements, which has certain shortcomings. To solve the above problems, a self-moving variable frequency intelligent tensioning tail is proposed. Summary of the Invention

[0006] To overcome the shortcomings of the prior art, the present invention provides a self-moving variable frequency intelligent tensioning tail section. Through the cooperation of the tensioning and straightening mechanism of the conveyor belt, the conveyor belt can be straightened without affecting the tensioning of the conveyor belt, thereby improving the stability of the conveying.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a self-moving variable frequency intelligent tensioning machine tail, comprising a frame, a roller rotatably mounted on one side of the frame, and a conveyor belt disposed on the side wall of the roller for conveying materials. The frame includes a frame body and a frame fixedly disposed on the outside of the frame body, and further includes a front housing detachably disposed at the end of the frame body, a tensioning mechanism disposed within the front housing for tensioning the conveyor belt, and an adjustment mechanism disposed on the outside of the frame and symmetrical about the center point of the frame body. The adjustment mechanism is used to cooperate with the tensioning mechanism to straighten the misaligned conveyor belt. The tensioning mechanism includes:

[0008] A pulling assembly, disposed inside the front housing, is used to pull the rollers to move and tension the conveyor belt. The pulling assembly includes:

[0009] A frame, movably mounted on the side wall of the frame, is U-shaped. The top two sides of the frame are rotatably connected to the two ends of the roller, so that the frame moves to drive the roller. A limiting component for limiting the roller's position is provided at the inner end of the frame. The adjusting mechanism includes:

[0010] Mounting plates are fixedly installed on the outer sides of the frame. Each mounting plate has a pushing component at the upper end of the side that is close to each other, and a guide component for guiding the rotation of the conveyor belt is installed at the lower end of the side that is close to each other.

[0011] Furthermore, the limiting component includes:

[0012] A connecting seat is fixedly installed on the inner end of the frame. A threaded rod is fixedly installed on the inner side of the connecting seat, and a first nut and a second nut are threadedly connected to the side wall of the threaded rod.

[0013] A limiting seat is fixedly installed on the top of the frame and located between the first nut and the second nut. The side wall of the threaded rod is sleeved on the side wall of the limiting seat. The side wall of the limiting seat has a first through hole for sleeved threaded rod, so that threaded rod moves with frame along the first through hole, thereby limiting threaded rod and roller by the first nut and the second nut. A first spring is sleeved on the side wall of threaded rod and located between the first nut and the connecting seat for pressing the first nut.

[0014] Furthermore, the pulling component also includes:

[0015] The guide rails are fixed to the top of the frame and extend to the inside of the frame.

[0016] Guide grooves are provided on both sides of the frame sidewall and are adapted to guide rails so that the frame can move horizontally along the sidewall of the frame through the guide grooves and guide rails.

[0017] Furthermore, the pulling component also includes:

[0018] A mounting base is fixedly installed on the bottom of the inner wall of the front housing, and a tension sensor is fixedly installed on the top of the mounting base;

[0019] The fastener is fixed on the side of the frame away from the roller and is symmetrically arranged with respect to the center point of the frame. Both the fastener and the fixing seat are provided with pulleys on the side that are close to each other.

[0020] The winch is fixedly installed at the bottom of the inner wall of the front housing. The winch contains a steel wire rope, which is arranged along the side wall of the pulley. The end of the steel wire rope away from the winch is fixedly connected to the tension sensor.

[0021] Furthermore, the actuating component includes:

[0022] The housing is fixedly mounted on the side of the mounting plate near the frame. A first mounting seat is fixedly mounted on the inner wall of the housing near the mounting plate, and a second mounting seat is fitted on the inner wall of the housing. A first electromagnet and a second electromagnet are fixedly mounted on the side of the first mounting seat and the second mounting seat that are close to each other, respectively. A push rod extending out of the housing body is fixedly mounted on the side of the second mounting seat away from the second electromagnet. A push frame is fixedly mounted on the end of the push rod that is outside the housing body. A guide roller is rotatably mounted on the inner side of the push frame. The side of the first electromagnet and the second electromagnet that are close to each other are the same magnetic poles, so as to generate a repulsive force to drive the guide roller to move.

[0023] Furthermore, the actuation component also includes:

[0024] The pressure sensor is fixedly installed on the side of the housing near the push frame. The pressure sensor is a ring pressure sensor. The inner wall of the pressure sensor is sleeved on the side wall of the push rod and is used to monitor the pressure of the conveyor belt extrusion guide roller.

[0025] The guide rod is fixedly installed on the upper end of one side and the lower end of the other side of the push frame near the housing. The side wall of the guide rod passes through the housing, the first mounting seat and the second mounting seat and extends out of the housing. The guide rod moves with the push frame to limit the movement of the push frame and the guide roller.

[0026] Furthermore, the guiding component includes:

[0027] A connecting plate is fixedly installed on the side of the box away from the mounting plate. A fixed frame is fixedly installed on the side of the connecting plate away from the box. The fixed frame is triangular in design. A roller is slidably installed on the top inclined side of the fixed frame. A support roller is rotatably installed on the side wall of the roller. The top of the side wall of the support roller contacts the bottom of the conveyor belt. The top of the roller is hinged to the bottom of the push frame. The push frame moves while driving the support roller to move.

[0028] Furthermore, the guiding component also includes:

[0029] The chute is located at the top of the inclined side of the fixed frame. A slider is placed inside the chute and extends to the top of the fixed frame. The slider is fixedly connected to the bottom of the roller at one end of the top of the fixed frame. The chute is inclined to limit the movement trajectory of the idler roller.

[0030] Furthermore, the side walls of the housing, the first mounting base, and the second mounting base are all provided with second through holes for mounting the guide rod, and the second through holes extend into the mounting plate. The second through holes are located at the top and bottom of the first electromagnet and the second electromagnet.

[0031] The side wall of the box is provided with a third through hole for mounting the push rod;

[0032] A second spring is fitted onto the side wall of the push rod, on the side of the second mounting base away from the second electromagnet.

[0033] Furthermore, the front housing is located at the end of the frame near the transfer machine, and the side of the front housing away from the winch is designed to be open, and is fitted onto the outside of the conveyor belt near the transfer machine.

[0034] This invention provides a self-moving variable frequency intelligent tensioning machine tail. Compared with the prior art, it has the following advantages:

[0035] 1. The present invention uses the pulling component of the tensioning mechanism to drive the roller to move, so as to tension the conveyor belt. After tensioning, the conveyor belt and the roller are limited by the limiting component to improve the stability of tensioning, thereby improving the stability of conveying. A limiting gap is set to allow the roller to move back, so that the conveyor belt is relatively relaxed, and the adjustment mechanism can be used to straighten the misaligned conveyor belt, further improving the stability of conveying.

[0036] 2. This invention uses a pulling component to move the roller, thereby facilitating the adjustment of the conveyor belt tension. Furthermore, by incorporating a tension sensor, the tension of the conveyor belt can be easily monitored for practical adjustment. A limiting component is used, where the second nut of the limiting component is tightened against the side of the limiting seat away from the frame, thus limiting the movement of the frame and roller towards the winch. The tension of the steel wire rope on the frame and roller, along with the limiting action of the first nut and the limiting seat, keeps the roller in a stable state, improving the stability of the conveyor belt tension and consequently enhancing the stability of the conveying process.

[0037] A certain limiting gap is left between the first nut and the limiting seat, so that when the conveyor belt is loosened by reversing the winch, the roller has space to move away from the winch, and the movement distance of the roller is limited, which facilitates the subsequent straightening of the conveyor belt. The first spring is set to tighten against the first nut, which improves its stability.

[0038] 3. The present invention uses the cooperation of the pushing component and the limiting component of the adjusting mechanism to tighten the conveyor belt during the relatively loose process of the conveyor belt and drive it to move, so as to facilitate the displacement of the conveyor belt and thus facilitate the straightening of the conveyor belt.

[0039] The push assembly moves the guide roller and the idler roller simultaneously, so that the idler roller moves along the chute. Since the chute is inclined, one end of the roller body on which the idler roller is mounted is hinged to the push frame, so that the idler roller deflects along the trajectory of the chute while moving, thereby adjusting the support angle of the idler roller on the conveyor belt, so that the conveyor belt is straightened during continuous rotation, thus improving the efficiency of straightening the conveyor belt. Attached Figure Description

[0040] Figure 1 This is a schematic diagram of the overall structure of the invention applicable to the tail of a self-moving variable frequency intelligent tensioning machine;

[0041] Figure 2 This is a schematic diagram of the overall rear view structure of the present invention;

[0042] Figure 3 This is a schematic cross-sectional view of the front housing structure of the present invention;

[0043] Figure 4 This is a schematic diagram of the tensioning mechanism and adjusting mechanism of the present invention;

[0044] Figure 5 This is a schematic diagram of the frame and tensioning mechanism structure of the present invention;

[0045] Figure 6 This is a schematic diagram of the pull component structure of the present invention;

[0046] Figure 7 This is a schematic diagram of the frame and body structure of the present invention;

[0047] Figure 8 For the present invention Figure 7 A magnified structural diagram of A in the middle;

[0048] Figure 9 This is a schematic diagram of the frame and roller structure of the present invention;

[0049] Figure 10 This is a schematic diagram of the adjustment mechanism structure of the present invention;

[0050] Figure 11 This is a schematic diagram of the pushing component structure of the present invention;

[0051] Figure 12 This is a schematic cross-sectional view of the box structure of the present invention;

[0052] Figure 13 This is a schematic diagram of the structure of the pushing component and the guiding component of the present invention;

[0053] Figure 14 This is a schematic diagram of the fixed frame and sliding groove structure of the present invention.

[0054] The reference numerals in the above figures are as follows: 1. Frame; 2. Conveyor belt; 3. Front housing; 4. Roller; 5. Adjustment mechanism; 6. Tensioning mechanism;

[0055] 11. Frame; 12. Border;

[0056] 51. Mounting plate; 52. Pushing assembly; 53. Guiding assembly;

[0057] 521. Housing; 522. Push frame; 523. First electromagnet; 524. Guide rod; 525. Second electromagnet; 526. Guide roller; 527. Pressure sensor; 528. Push rod;

[0058] 531. Connecting plate; 532. Idler roller; 533. Fixing frame; 534. Slide groove;

[0059] 61. Pull component; 62. Limit component;

[0060] 611. Fixing component; 612. Wire rope; 613. Pulley; 614. Winch; 615. Tension sensor; 616. Mounting base; 617. Frame; 618. Guide groove; 619. Guide rail;

[0061] 621. Threaded rod; 622. Second nut; 623. Connecting seat; 624. First nut; 625. Limiting seat. Detailed Implementation

[0062] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0063] Example 1: Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4The self-moving variable frequency intelligent tensioning machine tail includes a frame 1, a roller 4 rotatably mounted on one side of the frame 1, and a conveyor belt 2 mounted on the side wall of the roller 4 for conveying materials. The frame 1 includes a frame body 11 and a frame 12 fixed on the outside of the frame body 11. It also includes a front housing 3 detachably mounted at the end of the frame body 11, a tensioning mechanism 6 mounted in the front housing 3 for tensioning the conveyor belt, and an adjustment mechanism 5 mounted on the outside of the frame 12 and symmetrical about the center point of the frame body 11. The adjustment mechanism 5 is used to cooperate with the tensioning mechanism 6 to straighten the offset conveyor belt 2.

[0064] Please see Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9 The tensioning mechanism 6 includes:

[0065] Pulling assembly 61, disposed inside the front housing 3, is used to pull the roller 4 to move, thereby tensioning the conveyor belt 2. Pulling assembly 61 includes:

[0066] The frame 617 is movably disposed on the side wall of the frame 12 and has a U-shaped design. The top two sides of the frame 617 are rotatably connected to the two ends of the roller 4, so that the frame 617 drives the roller 4 to move when it moves. The inner end of the frame 617 is provided with a limiting component 62 for limiting the roller 4.

[0067] Pull assembly 61 also includes:

[0068] Guide rails 619 are fixedly mounted on the top of frame 12 and extend to the inside of frame 12.

[0069] Guide grooves 618 are provided on both sides of the side wall of frame 617, and guide grooves 618 are adapted to guide rails 619 so that frame 617 can move horizontally along the side wall of frame 12 through guide grooves 618 and guide rails 619.

[0070] Pull assembly 61 also includes:

[0071] The mounting base 616 is fixedly installed on the bottom of the inner wall of the front housing 3, and the top of the mounting base 616 is fixedly provided with a tension sensor 615.

[0072] The fastener 611 is fixedly disposed on the side of the frame 617 away from the roller 4, and is symmetrically arranged with respect to the center point of the frame 617. The fastener 611 and the fixed base 616 are both provided with pulleys 613 on the side that are close to each other.

[0073] The winch 614 is fixedly installed on the bottom of the inner wall of the front housing 3. A steel wire rope 612 is installed inside the winch 614. The side wall of the steel wire rope 612 is arranged along the inside of the pulley 613, and the end of the steel wire rope 612 away from the winch 614 is fixedly connected to the tension sensor 615.

[0074] In practical implementation, the winch 614 is started. While the winch 614 rotates, the wire rope 612 is wound up. The wire rope 612 drives the frame 617 to move horizontally under the limit of the guide groove 618 and the guide rail 619 through the pulley 613, thereby driving the drum 4 to move horizontally, so as to adjust the tension of the drum 4 on the conveyor belt 2, which is convenient for actual conveying and improves the stability of conveying. In addition, by setting the tension sensor 615, the tension of the wire rope 612 can be easily controlled when pulling the drum 4 to move, so as to control the tension.

[0075] The pulley 613 reduces the force required to pull the roller 4 while facilitating the installation of the tension sensor 615.

[0076] Please see Figure 8 The limiting component 62 includes:

[0077] The connecting seat 623 is fixedly disposed on the inner end of the frame 617. A threaded rod 621 is fixedly disposed on the inner side of the connecting seat 623. A first nut 624 and a second nut 622 are threadedly connected to the side wall of the threaded rod 621.

[0078] The limiting seat 625 is fixedly disposed on the top of the frame 12 and located between the first nut 624 and the second nut 622. The side wall of the threaded rod 621 is sleeved on the side wall of the limiting seat 625. The side wall of the limiting seat 625 has a first through hole for sleeved threaded rod 621, so that threaded rod 621 moves with frame 617 along the first through hole, thereby limiting threaded rod 621 and roller 4 through the first nut 624 and the second nut 622. A first spring is sleeved on the side wall of threaded rod 621 and located between the first nut 624 and connecting seat 623 for pressing the first nut 624.

[0079] In practical implementation, the frame 617 moves while driving the connecting seat 623 and the threaded rod 621 to move, so that the threaded rod 621 moves along the first through hole opened on the side wall of the limiting seat 625. When the frame 617 moves to the designated position, the roller 4 reaches the designated tension of the conveyor belt 2. The worker rotates the first nut 624 and the second nut 622, so that the second nut 622 is tightened and fitted with the side of the limiting seat 625 away from the frame 617, so as to limit the movement of the frame 617 and the roller 4 toward the winch 614. Through the tension of the wire rope 612 on the frame 617 and the roller 4, as well as the limitation of the first nut 624 and the limiting seat 625, the roller 4 is in a stable state, improving the stability of the tension of the conveyor belt 2.

[0080] A certain limiting gap is left between the first nut 624 and the limiting seat 625. Even if there is a gap between the limiting seat 625 and the first nut 624, it allows the roller 4 to move away from the winch 614 when the conveyor belt 2 is loosened by reversing the winch 614. The movement distance of the roller 4 is limited, which facilitates the subsequent straightening of the conveyor belt 2. The first spring is set to press against the first nut 624, which improves its stability.

[0081] Example 2: Please refer to Figure 10 and Figure 11 The technical difference between this embodiment and Embodiment 1 lies in that the adjusting mechanism 5 includes:

[0082] Mounting plates 51 are fixedly mounted on the outer sides of the frame 12. Each mounting plate 51 has a pushing component 52 on the upper end of the side that is close to each other, and a guide component 53 for guiding the rotation of the conveyor belt 2 is provided on the lower end of the side that is close to each other.

[0083] Please see Figure 11 , Figure 12 and Figure 13 The driving component 52 includes:

[0084] The housing 521 is fixedly mounted on the side of the mounting plate 51 near the frame 11. A first mounting seat is fixedly mounted on the inner wall of the housing 521 near the mounting plate 51, and a second mounting seat is fitted on the inner wall of the housing 521. A first electromagnet 523 and a second electromagnet 525 are fixedly mounted on the side of the first mounting seat and the second mounting seat that are close to each other, respectively. A push rod 528 extending out of the housing 521 is fixedly mounted on the side of the second mounting seat away from the second electromagnet 525. A push frame 522 is fixedly mounted on the end of the push rod 528 that is outside the housing 521. A guide roller 526 is rotatably mounted on the inner side of the push frame 522. The sides of the first electromagnet 523 and the second electromagnet 525 that are close to each other are the same magnetic poles, so as to generate a repulsive force to drive the guide roller 526 to move.

[0085] The drive component 52 also includes:

[0086] Pressure sensor 527 is fixedly installed on the side of housing 521 near push frame 522. Pressure sensor 527 is a ring pressure sensor. The inner wall of pressure sensor 527 is sleeved on the side wall of push rod 528 and is used to monitor the pressure of extrusion guide roller 526 of conveyor belt 2.

[0087] The guide rod 524 is fixedly installed on the upper end of one side and the lower end of the other side of the push frame 522 near the housing 521. The side wall of the guide rod 524 passes through the housing 521, the first mounting seat and the second mounting seat and extends to the outside of the housing 521. The guide rod 524 moves with the push frame 522 to limit the movement of the push frame 522 and the guide roller 526.

[0088] In specific implementation, when the conveyor belt 2 deviates, it is adjusted from the opposite side. In specific adjustment, the winch 614 is reversed first, and under the action of the limiting component 62, the roller 4 has a certain space to move back. At the same time, the first electromagnet 523 and the second electromagnet 525 are energized. Since the sides that are close to each other are the same magnetic poles, a repulsive force is generated after energization, which drives the second electromagnet 525 and the push rod 528 to move, thereby driving the push frame 522, the guide roller 526 and the idler roller 532 to move. The guide roller 526 drives the conveyor belt 2 to produce a certain displacement, so that the conveyor belt 2 is straightened.

[0089] By setting up a pressure sensor 527, it is easy to monitor the squeezing force of the conveyor belt 2 on the guide roller 526. When the conveyor belt 2 deviates, the squeezing force of the conveyor belt 2 on the guide roller 526 on both sides of the frame 11 decreases on one side and increases on the other side, thus making it easier to grasp the conveying status of the conveyor belt 2.

[0090] Please see Figure 13 and Figure 14 The guide component 53 includes:

[0091] A connecting plate 531 is fixedly installed on the side of the housing 521 away from the mounting plate 51. A fixing frame 533 is fixedly installed on the side of the connecting plate 531 away from the housing 521. The fixing frame 533 is triangular in design. A roller is slidably installed on the top inclined side of the fixing frame 533. A support roller 532 is rotatably installed on the side wall of the roller. The top of the side wall of the support roller 532 contacts the bottom of the conveyor belt 2. The top of the roller is hinged to the bottom of the push frame 522. The push frame 522 moves while driving the support roller 532 to move.

[0092] The guide component 53 also includes:

[0093] The chute 534 is located on the top of the inclined side of the fixed frame 533. A slider is placed inside the chute 534 and extends to the top of the fixed frame 533. The slider is fixedly connected to the bottom of the roller body at one end of the top side wall of the fixed frame 533. The chute 534 is inclined to limit the movement trajectory of the idler roller 532.

[0094] In specific implementation, the push component 52 drives the guide roller 526 to move while simultaneously driving the idler roller 532 to move, so that the idler roller 532 moves along the chute 534. Since the chute 534 is inclined, one end of the roller body of the idler roller 532 is hinged to the push frame 522, so that the idler roller 532 deflects along the trajectory of the chute 534 while moving, thereby adjusting the support angle of the idler roller 532 on the conveyor belt 2, so that the conveyor belt 2 is straightened during continuous rotation, thereby improving the efficiency of straightening the conveyor belt 2.

[0095] After the conveyor belt 2 is straightened, i.e., the pressure sensors 527 on both sides of the frame 11 are vertically level, or the staff observes the conveying situation of the conveyor belt 2, the first electromagnet 523 and the second electromagnet 525 are de-energized. Under the squeezing action of the conveyor belt 2, the guide roller 526 and the idler roller 532 are reset, which is convenient for long-term use.

[0096] The length of the hinge shaft of the hinge member at the top of the hinged roller body is sufficient for the idler roller 532 to deflect along the chute 534 to ensure stability in actual use. This is a common practice in the design process of designers in this field and is existing technology, so it will not be elaborated here.

[0097] The side walls of the housing 521, the first mounting base and the second mounting base are all provided with second through holes for mounting guide rods 524, and the second through holes extend into the mounting plate 51. The second through holes are located at the top and bottom of the first electromagnet 523 and the second electromagnet 525. The guide rods 524 move along the second through holes with the push frame 522 to limit the movement of the guide rollers 526, etc., and improve stability.

[0098] The side wall of the housing 521 has a third through hole for mounting the push rod 528;

[0099] A second spring is fitted on the side wall of the push rod 528, on the side of the second mounting base away from the second electromagnet 525.

[0100] The front housing 3 is located at the end of the frame 11 near the transfer machine. The side of the front housing 3 away from the winch 614 is designed to be open and is fitted on the outer side of the conveyor belt 2 near the transfer machine. The front housing 3 facilitates the installation of the tensioning mechanism 6 and makes the front housing 3 detachable by bolts, which is convenient for later use.

[0101] In implementation, the present invention uses the pulling component 61 of the tensioning mechanism 6 to pull the roller 4 to move, thereby tensioning the conveyor belt 2. The tension sensor 615 of the pulling component 61 monitors the tension value to determine the degree of tension. The movement of the roller 4 is limited by the guide rail 619 and the guide groove 618 to improve its movement stability, thereby improving the stability of tensioning the conveyor belt 2. The limiting component 62 of the tensioning mechanism 6 limits the roller 4 after the movement is completed, avoiding the disadvantage of the steel wire rope 612 not having support force after being pulled during the conveying process, further improving the tension stability, thereby improving the conveying stability. In addition, by setting a limiting gap, the roller 4 has a certain amount of movement space in the direction away from the winch 614, which facilitates the subsequent adjustment mechanism 5 to correct the deviation of the conveyor belt 2, further improving the conveying stability.

[0102] When straightening conveyor belt 2, the pressure sensor 527 of the push assembly 52 monitors the pressure of the conveyor belt 2 squeezing the guide roller 526. When the conveyor belt 2 deviates, the squeezing force is abnormal. At this time, the steel wire rope 612 is stretched by the pull assembly 61, so that the roller 4 moves back a certain distance within the limit gap of the limit assembly 62, so that the conveyor belt 2 is in a relatively relaxed state for a short time. At the same time, the push assembly 52 drives the guide roller 526 and the idler roller 532 to move closer to the conveyor belt 2, so that the conveyor belt 2 moves closer to the opposite side. During the relaxation of the conveyor belt 2, the push assembly pushes the conveyor belt 2 to straighten it, so as to avoid the straightening efficiency being affected by the large tension. In addition, the guide assembly 53 causes the idler roller 532 to deflect, thereby adjusting the angle of the support of the conveyor belt 2, so that the conveyor belt 2 is automatically straightened during continuous rotation. By pushing the conveyor belt 2 and adjusting the support angle of the idler roller 532 on the conveyor belt 2, the straightening efficiency is improved.

[0103] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0104] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0105] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A self-propelled variable frequency intelligent tensioning machine tail, comprising a frame, a roller rotatably mounted on one side of the frame, and a conveyor belt disposed on the side wall of the roller for conveying materials, the frame comprising a frame body and a frame fixedly disposed on the outer side of the frame body, characterized in that, It also includes a front housing detachably mounted at the end of the frame, a tensioning mechanism disposed within the front housing for tensioning the transmission belt, and an adjustment mechanism disposed on the outside of the frame and symmetrical about the center point of the frame. The adjustment mechanism is used to cooperate with the tensioning mechanism to straighten the misaligned transmission belt. The tensioning mechanism includes: A pulling assembly, disposed inside the front housing, is used to pull the rollers to move and tension the conveyor belt. The pulling assembly includes: A frame, movably mounted on the side wall of the frame, is U-shaped. The top two sides of the frame are rotatably connected to the two ends of the roller, so that the frame moves to drive the roller. A limiting component for limiting the roller's position is provided at the inner end of the frame. The adjusting mechanism includes: Mounting plates are fixedly mounted on both outer sides of the frame. Each mounting plate has a pushing component at its upper end on the side closest to each other, and a guide component for guiding the conveyor belt's rotation at its lower end on the same side. The pushing component includes: A housing is fixedly mounted on the side of the mounting plate near the frame. A first mounting seat is fixedly mounted on the inner wall of the housing near the mounting plate, and a second mounting seat is fitted onto the inner wall of the housing. A first electromagnet and a second electromagnet are respectively fixed on the sides of the first and second mounting seats that are close to each other. A push rod extending out of the housing body is fixedly mounted on the side of the second mounting seat away from the second electromagnet. A push frame is fixedly mounted on the end of the push rod outside the housing body. A guide roller is rotatably mounted on the inner side of the push frame. The sides of the first and second electromagnets that are close to each other have the same magnetic poles to generate a repulsive force to drive the guide roller to move. The push assembly also includes: The pressure sensor is fixedly installed on the side of the housing near the push frame. The pressure sensor is a ring pressure sensor. The inner wall of the pressure sensor is sleeved on the side wall of the push rod and is used to monitor the pressure of the conveyor belt extrusion guide roller. A guide rod is fixedly mounted on the upper end of one side and the lower end of the other side of the push frame near the housing. The side wall of the guide rod penetrates the housing, the first mounting base, and the second mounting base and extends out of the housing. The guide rod moves with the push frame to limit the movement of the push frame and the guide roller. The guide assembly includes: A connecting plate is fixedly mounted on the side of the housing away from the mounting plate. A fixing frame is fixedly mounted on the side of the connecting plate away from the housing, and the fixing frame has a triangular design. A roller is slidably mounted on the top inclined side of the fixing frame. A support roller is rotatably mounted on the side wall of the roller. The top of the side wall of the support roller contacts the bottom of the conveyor belt, and the top of the roller is hinged to the bottom of the push frame. The push frame moves while driving the support roller to move. The guide assembly also includes: The chute is located at the top of the inclined side of the fixed frame. A slider is placed inside the chute and extends to the top of the fixed frame. The slider is fixedly connected to the bottom of the roller at one end of the top of the fixed frame. The chute is inclined to limit the movement trajectory of the idler roller.

2. The self-moving variable frequency intelligent tensioning machine tail as described in claim 1, characterized in that, The limiting component includes: A connecting seat is fixedly installed on the inner end of the frame. A threaded rod is fixedly installed on the inner side of the connecting seat, and a first nut and a second nut are threadedly connected to the side wall of the threaded rod. A limiting seat is fixedly installed on the top of the frame and located between the first nut and the second nut. The side wall of the threaded rod is sleeved on the side wall of the limiting seat. The side wall of the limiting seat has a first through hole for sleeved threaded rod, so that threaded rod moves with frame along the first through hole, thereby limiting threaded rod and roller by the first nut and the second nut. A first spring is sleeved on the side wall of threaded rod and located between the first nut and the connecting seat for pressing the first nut.

3. The self-moving variable frequency intelligent tensioning machine tail as described in claim 1, characterized in that, The pulling component also includes: The guide rails are fixed to the top of the frame and extend to the inside of the frame. Guide grooves are provided on both sides of the frame sidewall and are adapted to guide rails so that the frame can move horizontally along the sidewall of the frame through the guide grooves and guide rails.

4. The self-moving variable frequency intelligent tensioning machine tail as described in claim 1, characterized in that, The pulling component also includes: A mounting base is fixedly installed on the bottom of the inner wall of the front housing, and a tension sensor is fixedly installed on the top of the mounting base; The fastener is fixed on the side of the frame away from the roller and is symmetrically arranged with respect to the center point of the frame. Both the fastener and the fixing seat are provided with pulleys on the side that are close to each other. The winch is fixedly installed at the bottom of the inner wall of the front housing. The winch contains a steel wire rope, which is arranged along the side wall of the pulley. The end of the steel wire rope away from the winch is fixedly connected to the tension sensor.

5. The self-moving variable frequency intelligent tensioning machine tail as described in claim 1, characterized in that, The side walls of the housing, the first mounting base and the second mounting base are all provided with a second through hole for mounting the guide rod, and the second through hole extends into the mounting plate. The second through hole is located at the top and bottom of the first electromagnet and the second electromagnet. The side wall of the box is provided with a third through hole for mounting the push rod; A second spring is fitted onto the side wall of the push rod, on the side of the second mounting base away from the second electromagnet.

6. The self-moving variable frequency intelligent tensioning machine tail according to claim 4, characterized in that, The front housing is located at the end of the frame near the transfer machine. The side of the front housing away from the winch is designed to be open and is fitted onto the outside of the conveyor belt near the transfer machine.

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