MD dryer worm and gear rotation detection device

Abstract

The invention relates to the technical field of cooling tower maintenance, and discloses an MD dryer worm gear and worm rotation detection device which comprises a connecting shaft rod, the bottom end of the connecting shaft rod penetrates out of a shell and is fixedly sleeved with a rotating piece, a small ball detection mechanism is arranged on one side of the rotating piece, and the small ball detection mechanism comprises a ball storage area and a display area. The ball storage area is communicated with the display area, a plurality of metering balls are stored in the ball storage area, a trigger mechanism is arranged between the rotating part and the ball storage area, one end of the trigger mechanism is in transmission connection with the rotating part, the other end of the trigger mechanism blocks the metering balls in the ball storage area, and when the rotating part rotates by one circle, the metering balls are separated from the ball storage area. The trigger mechanism enables the ball storage area to release at least one ball to the display area. According to the invention, the transmission condition and the operation state of the worm gear and the worm can be mastered, and the detection efficiency and the accuracy are improved.

Description

Technical Field

[0001] The invention relates to the technical field of cooling tower maintenance, in particular to a worm gear rotation detection device for an MD dryer. Background Art

[0002] Air compressors play a vital role in the production process of cigarette factories. They not only provide power for the production line, but are also directly involved in many key process links such as silk making, flavoring, and adding materials, playing a decisive role in improving production efficiency and ensuring product quality.

[0003] Compressed air drying plays a crucial role in ensuring the stability of downstream equipment, improving product quality, preventing corrosion and microbial growth, avoiding process quality issues, reducing pipeline corrosion, and meeting specific industry needs. Worm gear transmission, as a specialized gear transmission method, is widely used within air compressor MD dryers due to its high transmission ratio, smooth transmission, and self-locking properties. MD dryers use a worm gear to continuously rotate a molecular sieve, absorbing moisture from the compressed air and delivering dry air. The molecular sieve, composed of silica and glass fiber, is divided into a drying zone and a regeneration zone. The drying zone absorbs moisture, while the regeneration zone uses high-temperature compressed air, unaftercooled, to remove any remaining moisture from the molecular sieve before discharging it through a steam trap. Inadequate worm gear transmission can lead to severe friction and wear on the gear teeth, compromising transmission accuracy. Therefore, to monitor the worm gear's operating status and ensure smooth and reliable transmission, it is essential to conduct regular inspections and assessments of the worm gear's operation in MD dryers.

[0004] The current detection method is manual visual inspection, which is used to judge the operation of the molecular sieve by observing whether the worm gear drives the connecting rod of the molecular sieve to rotate normally. Since the connecting rod rotates 5-7 times per hour and the rotation speed is extremely slow, the staff has to squat for a long time to observe, and it is easy to make misjudgments, which greatly reduces the detection efficiency and accuracy. Summary of the Invention

[0005] In view of this, the object of the present invention is to provide an MD dryer worm gear rotation detection device, so as to achieve the effect of mastering the worm gear transmission situation and operating status, and improving the detection efficiency and accuracy.

[0006] The present invention solves the above technical problems through the following technical means: a worm gear rotation detection device for an MD dryer, comprising a connecting rod, the bottom end of the connecting rod extending out of the MD dryer and being fixedly sleeved with a rotating member, a small ball detection mechanism being provided on one side of the rotating member, the small ball detection mechanism comprising a ball storage area and a display area, the ball storage area and the display area being connected, a plurality of metering small balls being stored in the ball storage area, a trigger mechanism being provided between the rotating member and the ball storage area, one end of the trigger mechanism being transmission-connected to the rotating member, and the other end forming a blockage for the metering small balls in the ball storage area, and when the rotating member rotates one circle, the trigger mechanism causes the ball storage area to release at least one small ball to the display area.

[0007] Furthermore, the ball storage area includes a ball storage plate, which is inclined from top to bottom toward the display area, and the trigger mechanism includes a connecting plate, a transmission assembly and a blocking assembly, and the connecting plate is slidably installed along the left and right directions of the ball storage plate between the lower end of the ball storage plate and the display area. The transmission assembly includes a first rod and a second rod, one end of the first rod is fixedly connected to the connecting plate, and the other end is hinged to one end of the second rod, and the other end of the second rod is hinged to the bottom edge of the rotating member, and the hinge axis of the first rod and the second rod, and the hinge axis of the second rod and the rotating member are both parallel to the vertical direction; the blocking assembly includes a main board, one end of the main board is fixedly connected to the connecting plate, and the other end of the main board is provided with at least two support plates (a first support plate, a second support plate and a third support plate) at intervals along the axial direction of the ball storage plate, all of the support plates are staggered in the left and right directions of the ball storage plate, and the distance between two adjacent support plates can accommodate at least one metering ball.

[0008] Furthermore, when the support plate on the left side of the ball storage plate moves to the first position, the support plate on the left side of the ball storage plate abuts and limits the metering balls in the ball storage plate, and the support plate on the right side of the ball storage plate moves to the second position and does not contact the metering balls in the ball storage plate; when the support plate on the left side of the ball storage plate moves to the second position, the support plate on the left side of the ball storage plate does not contact the metering balls in the ball storage plate, and the support plate on the right side of the ball storage plate moves to the first position and abuts and limits the metering balls in the ball storage plate.

[0009] Furthermore, the display area is located outside the middle part of the MD dryer, and a circulating transmission mechanism is provided between the display area and the ball storage area. The circulating transmission mechanism includes a first transmission component and a second transmission component. The first transmission component is located between the connecting plate and the display area, and the second transmission component is located between the display area and the end of the ball storage plate away from the connecting plate.

[0010] Furthermore, the first conveying assembly includes a first guide plate, a spiral conveying assembly and a second guide plate. The spiral conveying assembly is vertically arranged. One end of the first guide plate is connected to the end of the connecting plate away from the ball storage plate, and the other end is connected to the bottom end of the spiral conveying assembly. One end of the second guide plate is connected to the top of the spiral conveying assembly, and the other end is connected to the display area. The second guide plate is inclined from top to bottom toward the display area.

[0011] Furthermore, the display area includes a support frame and a display board, one end of the display board is rotatably mounted on the support frame, and a counterweight is provided at the end of the display board close to the support frame, so that the display board tilts from top to bottom toward the support frame, and the end of the display board away from the counterweight is located below the lower end of the second guide plate and the two are connected.

[0012] Furthermore, the second conveying assembly includes a third guide plate, a vertical conveying pipe and a guide pipe, one end of the third guide plate is connected to the top of the vertical conveying pipe, and the other end is located below the end of the display plate away from the counterweight and the two are connected, the third guide plate is inclined from top to bottom toward the direction close to the vertical conveying pipe, one end of the guide pipe is connected to the bottom end of the vertical conveying pipe, and the other end is connected to the high end of the ball storage plate, and the guide pipe is inclined from top to bottom toward the direction close to the ball storage plate.

[0013] Furthermore, the rotating member is an incomplete gear tooth, and an elastic mechanism is provided between the end of the first guide plate away from the spiral conveying assembly and the connecting plate, and the elastic mechanism includes a fourth guide plate and a pushing member, one end of the fourth guide plate is located obliquely below the end of the connecting plate away from the ball storage plate, and is connected to the end of the first guide plate away from the spiral conveying assembly, the fourth guide plate is inclined from top to bottom away from the first guide plate, and the pushing member is slidably embedded in the fourth guide plate, and a rack engaged with the rotating member is provided along a horizontal square on one side of the pushing member, and an elastic member is provided between the pushing member and the fourth guide plate, and when the rotating member rotates to the third position, the rotating member engages with the rack, the pushing member moves in the direction away from the first guide plate, and the pushing member compresses or stretches the elastic member.

[0014] Furthermore, a fixed plate is provided below the connecting plate, and a dovetail groove is provided on the fixed plate along the left and right directions of the ball storage plate. A connecting piece is provided between the connecting plate and the fixed plate, and the connecting piece includes a dovetail block and a support rod. The dovetail block is slidably embedded in the dovetail groove, and the top end of the support rod is fixedly connected to the bottom of the connecting plate, and the bottom end is fixedly connected to the dovetail block.

[0015] The beneficial effects of the present invention are:

[0016] This application extends the connecting rod outside the housing and triggers the trigger mechanism through the rotation of the connecting rod itself. Every time the trigger mechanism is triggered, the ball storage area releases small balls to the display area. By observing the number of small balls measured in the display area, the staff can efficiently and intuitively judge whether the worm gear is transmitting and the number of rotations of the connecting rod per hour. This can realize the understanding of the worm gear transmission situation and evaluate the operating status of the worm gear, thereby improving the detection efficiency and accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention is further illustrated by means of the following non-limiting examples.

[0018] Figure 1 It is a structural diagram of an existing MD dryer in the background technology of the present invention.

[0019] Figure 2 yes Figure 1 Schematic diagram of the local structure.

[0020] Figure 3 It is a structural schematic diagram of a worm gear rotation detection device for an MD dryer in the present invention.

[0021] Figure 4 This is a partial structural diagram of a worm gear rotation detection device for an MD dryer in the present invention. Figure 1 .

[0022] Figure 5 This is a partial structural diagram of a worm gear rotation detection device for an MD dryer in the present invention. Figure 2 .

[0023] Figure 6 This is a partial structural diagram of a worm gear rotation detection device for an MD dryer in the present invention. Figure 3 .

[0024] Figure 7 It is a structural schematic diagram of the blocking component in the present invention.

[0025] Figure 8 This is a partial structural diagram of a worm gear rotation detection device for an MD dryer in the present invention. Figure 4 .

[0026] Figure 9 yes Figure 8 Schematic diagram of the enlarged structure at point A in the middle.

[0027] Figure 10 It is a structural schematic diagram of the display area in the present invention.

[0028] In the above drawings: 1, MD dryer; 2, housing; 3, worm gear; 4, observation hole; 5, connecting rod; 6, rotating member; 7, ball storage plate; 8, metering ball; 9, connecting plate; 10, connecting member; 11, fixing plate; 12, dovetail groove; 13, first rod; 14, second rod; 15, main board; 16, first support plate; 17, first intercepting rod; 18, second intercepting rod; 19, vertical connecting rod; 20, horizontal connecting rod; 21, through hole; 2 2. First guide plate; 23. Screw conveying assembly; 24. Second guide plate; 25. Display plate; 26. Direction adjustment cylinder; 27. Weight member; 28. Shallow groove; 29. ​​Support frame; 31. Counterweight member; 32. Third guide plate; 33. Vertical conveying pipe; 34. Guide pipe; 35. Rack; 36. Fourth guide plate; 37. Pusher; 38. Elastic member; 39. Support plate; 40. Second support plate; 41. Third support plate; 42. Worm. DETAILED DESCRIPTION

[0029] The following describes the embodiments of the present invention through specific embodiments. Those skilled in the art can understand the advantages and effects of the present invention from the contents disclosed in this specification. It should be noted that the illustrations provided in the following embodiments are for illustrative purposes only and are only schematic diagrams, not actual drawings. They should not be understood as limiting the present invention. In order to better illustrate the embodiments of the present invention, some parts in the figures may be omitted, enlarged or reduced, and do not represent the dimensions of the actual product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the figures.

[0030] The same or similar numbers in the figures of the embodiments of the present invention correspond to the same or similar parts. In the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "front", "back", etc. indicating directions or positional relationships, they are based on the directions or positional relationships shown in the figures. This is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the figures are only used for illustrative purposes and cannot be understood as limiting the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances. In the description of this application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0031] In the existing related technologies, such as Figure 1 and Figure 2As shown, the connecting rod is set vertically, and the top end of the connecting rod penetrates into the MD dryer and is connected to its internal structure. The worm gear is fixedly mounted on the bottom end of the connecting rod. The worm gear, worm and connecting rod are all provided with a shell on the outside. Several observation holes are evenly arranged on the shell along the axial direction of the connecting rod. During inspection, the staff squats or sits on a low stool, illuminates the observation hole with a light source (usually a flashlight) and observes whether the internal connecting rod rotates. This process takes at least ten minutes for each MD dryer. However, the cigarette factory workshop is equipped with multiple MD dryers, which results in long inspection time and high labor intensity for the staff, greatly reducing the inspection efficiency and accuracy.

[0032] like Figure 3-10 As shown, an embodiment of the present invention provides a worm gear rotation detection device for an MD dryer. The device is mounted on an MD dryer and includes a connecting rod 5. The bottom end of the connecting rod 5 extends through the housing 2 and is fixedly mounted with a rotating member 6. The rotating member 6 is coaxial with the connecting rod 5 and rotatably engages with the housing 2 via a bearing. A ball detection mechanism is provided on one side of the rotating member 6. The ball detection mechanism includes a ball storage area and a display area. The ball storage area and the display area are connected. The ball storage area stores a plurality of metering balls 8. A trigger mechanism is provided between the rotating member 6 and the ball storage area. One end of the trigger mechanism is in transmission connection with the rotating member 6, and the other end blocks the metering balls 8 in the ball storage area. When the rotating member 6 rotates one revolution, the trigger mechanism causes the ball storage area to release at least one ball into the display area. In this embodiment, to simplify the structure, the trigger mechanism causes the ball storage area to release only one ball into the display area each time the rotating member 6 rotates one revolution (i.e., when the connecting rod 5 rotates one revolution), facilitating statistical management by staff.

[0033] The ball storage area includes a ball storage plate 7, which is tilted from top to bottom toward the display area so that the metering ball 8 can smoothly roll from the ball storage area to the display area. The trigger mechanism includes a connecting plate 9, a transmission assembly, and a blocking assembly. The connecting plate 9 is slidably installed along the left and right directions of the ball storage plate 7 between the lower end of the ball storage plate 7 and the display area. In this embodiment, the ball storage plate 7 is a straight plate, and the left and right directions of the ball storage plate 7 are parallel to the horizontal direction. The connecting plate 9 is also tilted, and the inclination angle of the connecting plate 9 is consistent with the inclination angle of the ball storage plate 7. In this embodiment, the ball storage plate 7 and the connecting plate 9 are both provided with a slide groove matching the metering ball 8 along their respective axial directions. When the high end of the connecting plate 9 is aligned and connected with the low end of the ball storage plate 7, the metering ball 8 can smoothly roll from the ball storage plate 7 to the connecting plate 9. The transmission assembly includes a first rod 13 and a second rod 14. One end of the first rod 13 is fixedly connected to the connecting plate 9, and the other end is hinged to one end of the second rod 14. The other end of the second rod 14 is hinged to the bottom edge of the rotating member 6. The hinge axis of the first rod 13 and the second rod 14, and the hinge axis of the second rod 14 and the rotating member 6 are both parallel to the vertical direction. In this embodiment, the axis of the first rod 13 is parallel to the sliding direction of the connecting plate 9. When the connecting rod 5 drives the rotating member 6 to rotate, under the action of the second rod 14 and the first rod 13, the connecting plate 9 performs reciprocating linear motion in the horizontal direction. During the movement of the connecting plate 9, it can be aligned and connected with the ball storage plate 7, and when the connecting plate 9 is staggered with the ball storage plate 7, the side wall of the high end face of the connecting plate 9 forms a limit for the balls on the ball storage plate 7. The blocking assembly includes a main board 15, one end of which is fixedly connected to the connecting plate 9, and the other end of the main board 15 is provided with at least two support plates axially spaced apart along the ball storage plate 7. In this embodiment, there are three support plates, namely the first support plate 16, the second support plate 40 and the third support plate 41. The first support plate 16, the second support plate 40 and the third support plate 41 are arranged in sequence along the direction away from the connecting plate 9. The first support plate 16 and the third support plate 41 are located on the left side of the ball storage plate 7, and the second support plate 40 is located on the right side of the ball storage plate 7, so that the three support plates are staggered in the left and right directions of the ball storage plate 7. The distance between two adjacent support plates can accommodate at least one metering ball 8. In this embodiment, the distance between the second support plate 40 and the third support plate 41 just accommodates one metering ball 8. In this embodiment, each support plate includes a transverse connecting rod 20, a vertical connecting rod 19, a first connecting rod and a second intercepting rod 18. The first intercepting rod 17 and the second intercepting rod 18 are spaced apart on the top of the vertical connecting rod 19. The first intercepting rod 17 is located above the upper surface of the ball storage plate 7, and the second intercepting rod 18 is located below the upper surface of the ball storage plate 7. The first intercepting rod 17 and the second intercepting rod 18 are symmetrically distributed on the upper and lower sides of the middle of the metering ball 8 in the ball storage area, which can easily and stably prevent the metering ball 8 from rolling. A through hole 21 for the second intercepting rod 18 to pass through is provided on the side wall of the slide groove of the ball storage plate 7. One end of the transverse connecting rod 20 is fixedly connected to the bottom end of the vertical connecting rod 19, and the other end is fixedly connected to the main board 15. When the connecting plate 9 reciprocates left and right, the main board 15 and the three support plates move synchronously.

[0034] When the support plate on the left side of the ball storage plate 7 moves to the first position, the support plate on the left side of the ball storage plate 7 abuts against the metering ball 8 in the ball storage plate 7 to limit the position, and the support plate on the right side of the ball storage plate 7 moves to the second position and does not contact the metering ball 8 in the ball storage plate 7; when the support plate on the left side of the ball storage plate 7 moves to the second position, the support plate on the left side of the ball storage plate 7 does not contact the metering ball 8 in the ball storage plate 7, and the support plate on the right side of the ball storage plate 7 moves to the first position and abuts against the metering ball 8 in the ball storage plate 7 to limit the position. In this embodiment, when the right ends of the first support plate 16 and the third support plate 41 extend into the chute of the ball storage plate 7, the first support plate 16 and the third support plate 41 are located in the first position. At this time, the left end of the second support plate 40 is located outside the right side wall of the chute of the ball storage plate 7, and the second support plate 40 is located in the second position. When the right ends of the first support plate 16 and the third support plate 41 are located outside the left side wall of the chute of the ball storage plate 7, the first support plate 16 and the third support plate 41 are located in the second position. At this time, the left end of the second support plate 40 is located in the chute of the ball storage plate 7, and the second support plate 40 is located in the first position.

[0035] A fixed plate 11 is horizontally disposed below the connecting plate 9. This fixed plate 11 has dovetail grooves 12 disposed along the left and right sides of the ball storage plate 7. A connector 10 is disposed between the connecting plate 9 and the fixed plate 11. This connector 10 comprises a dovetail block and a support rod. The dovetail block slides within the dovetail groove 12. The top end of the support rod is fixedly connected to the bottom of the connecting plate 9, and the bottom end is fixedly connected to the upper surface of the dovetail block. In this embodiment, the end of the main plate 15 closest to the connecting plate 9 is fixedly mounted on the support rod, and the end of the first rod 13 closest to the connecting plate 9 is rotatably mounted on the support rod.

[0036] In the above embodiment, when the connecting rod 5 rotates to drive the rotating member 6 to rotate, the connecting plate 9 is caused to slide back and forth periodically above the dovetail groove 12 through the second rod 14 and the first rod 13. During the reciprocating motion of the connecting plate 9, the three support plates also follow the synchronous motion. The three support plates are alternately in the second position and the first position. Such a structural design ensures that for every rotation of the connecting rod 5 and the rotating member 6, only one small ball in the ball storage area is released and can roll to the display area, which is convenient for statistics and counting.

[0037] The display area is located outside the center of the MD dryer 1. A circulating conveyor mechanism is installed between the display area and the ball storage area. The circulating transmission mechanism includes a first conveyor assembly and a second conveyor assembly. The first conveyor assembly is located between the connecting plate 9 and the display area, and the second conveyor assembly is located between the display area and the end of the ball storage plate 7 away from the connecting plate 9. In this embodiment, the display area is located outside the center of the equipment, allowing workers to clearly and intuitively observe the number of metering balls 8 in the display area while standing, eliminating the need for workers to squat for inspection. The circulating conveyor mechanism enables the entire detection device to operate continuously, with a high degree of automation.

[0038] The first conveying assembly includes a first guide plate 22, a spiral conveying assembly 23, and a second guide plate 24. The spiral conveying assembly 23 is vertically arranged. The structure of the spiral conveying assembly 23 is well known in the prior art and will not be further described here. One end of the first guide plate 22 is connected to the lower end of the connecting plate 9 and the other end is connected to the bottom end of the spiral conveying assembly 23. One end of the second guide plate 24 is connected to the top end of the spiral conveying assembly 23 and the other end is connected to the display area. The second guide plate 24 is tilted from top to bottom toward the display area. The display area includes a support frame 29 and a display panel 25. One end of the display panel 25 is rotatably mounted on the support frame 29, forming a lever structure. The rotation axis of the display panel 25 is parallel to the horizontal direction. A counterweight 31 is provided on the end of the display panel 25 near the support frame 29, so that when in a natural state, the display panel 25 tilts from top to bottom toward the support frame 29. The end of the display panel 25 away from the counterweight 31 is located below the lower end of the second guide plate 24 and the two are connected. In this embodiment, a direction adjustment cylinder 26 is provided at the lower end of the second guide rod. The middle part of the direction adjustment cylinder 26 is rotatably mounted on the support frame 29. The rotation axis of the direction adjustment cylinder 26 is parallel to the horizontal direction. A weighted member 27 is provided at the bottom of the direction adjustment cylinder 26 so that the top of the direction adjustment cylinder 26 is aligned with the lower end outlet of the second guide plate 24 in the natural state. A shallow groove 28 capable of accommodating the metering ball 8 is provided at the top of the direction adjustment cylinder 26. When the metering ball 8 rolls from the lower end of the second guide rod to the direction adjustment cylinder 26, the metering ball 8 First, it falls into the shallow groove 28, and the direction adjustment cylinder 26 is impacted by the metering ball 8 and swings. When the direction adjustment cylinder 26 swings downward, the metering ball 8 breaks away from the shallow groove 28 and rolls out. The direction adjustment cylinder 26 returns to its original position under the action of the weighting member 27, and the rolling direction of the metering ball 8 is changed. The display board 25 is located below the lower end of the second guide plate 24, and the upper end of the display board 25 is located obliquely below the direction adjustment cylinder 26. The metering ball 8 rolling out of the direction adjustment cylinder 26 just falls on the display board 25. The structure is simple and the design is ingenious.

[0039] The second conveying assembly includes a third guide plate 32, a vertical conveying pipe 33, and a guide tube 34. One end of the third guide plate 32 is connected to the top of the vertical conveying pipe 33, and the other end is located obliquely below the upper end of the display plate 25, with the two being interconnected. The third guide plate 32 is inclined from top to bottom toward the vertical conveying pipe 33. One end of the guide tube 34 is connected to the bottom end of the vertical conveying pipe 33, and the other end is connected to the upper end of the ball storage plate 7. The guide tube 34 is inclined from top to bottom toward the ball storage plate 7. In this embodiment, the vertical conveying pipe 33 can also adopt the spiral conveying assembly 23. Through the guide tube 34, the vertical conveying assembly, and the third guide plate 32, when the display area reaches a predetermined number of metering balls 8, the display plate 25 rotates under the action of gravity of the metering balls 8, and the upper end of the display plate 25 swings downward, causing the metering balls 8 to fall into the third guide plate 32 and return to the ball storage plate 7 through the vertical conveying pipe 33 and guide tube 34, completing the automatic circulation.

[0040] In the above embodiment, by providing the second guide plate 24, the display area can be flexibly arranged on both sides of the workshop aisle, and the staff can clearly and intuitively observe the display area of ​​each device when passing through the workshop aisle.

[0041] In the above embodiment, the first guide plate 22 , the second guide plate 24 , the third guide plate 32 , the guide tube 34 and the display plate 25 are all provided with guide grooves matching the metering ball 8 , so that the metering ball 8 can roll smoothly.

[0042] In the above embodiment, it is preferred that when seven metering balls 8 are accumulated in the guide groove of the display plate 25, the display plate 25 rotates, and the high end of the display plate 25 swings downward under the action of the gravity of the metering balls 8, and all the metering balls 8 in the display plate 25 automatically roll to the high end of the third guide plate 32.

[0043] The rotating member 6 is an incomplete gear tooth. An elastic mechanism is provided between the end of the first guide plate 22 away from the spiral conveying assembly 23 and the connecting plate 9. The elastic mechanism includes a fourth guide plate 36 and a pushing member 37. One end of the fourth guide plate 36 is located obliquely below the end of the connecting plate 9 away from the ball storage plate 7 and is connected to the end of the first guide plate 22 away from the spiral conveying assembly 23. The fourth guide plate 36 is inclined from top to bottom in the direction away from the first guide plate 22. The pushing member 37 is embedded in the fourth guide plate 36 in a sliding direction in the horizontal direction. A wedge-shaped slot is provided on the fourth guide plate 36 in the horizontal direction, and sliding blocks are provided on both sides of the bottom of the pusher 37. The sliding blocks are slidably embedded in the wedge-shaped slot. A rack 35 that meshes with the rotating member 6 for transmission is provided along a horizontal square on one side of the pusher 37. An elastic member 38 is provided between the pusher 37 and the fourth guide plate 36. When the rotating member 6 rotates to the third position, the rotating member 6 meshes with the rack 35, and the pusher 37 moves away from the first guide plate 22, and the pusher 37 compresses or stretches the elastic member 38. In this embodiment, the elastic member 38 is a spring. When the connecting rod 5 drives the rotating member 6 to rotate, the rotating member 6 engages with the rack 35, thereby driving the rack 35 and the pusher 37 to move horizontally in the fourth guide plate 36 and compressing the elastic member 38. When the metering ball 8 rolls from the ball storage area through the connecting plate 9 to the fourth guide plate 36, the metering ball 8 rolls toward the lower end of the fourth guide plate 36 under the action of gravity and abuts against the pusher 37. As the pusher 37 moves away from the first guide plate 22, energy is stored. The metering ball 8 always remains against the end face of the pusher 37 until the rotating member 6 rotates to the point where it no longer engages with the rack 35. At this time, the elastic member 38 is released, and the pusher 37 pushes the metering ball 8 to be launched, so that the metering ball 8 moves through the fourth guide plate 36 and the first guide plate 22 into the spiral feeding assembly. This structural design provides the metering ball 8 with an initial driving force and allows for a more flexible arrangement of the first guide plate 22.

[0044] In the above embodiment, a support plate 39 may be provided at the bottom of the MD dryer 1 , and each structural element in the present application may be supported on the support plate 39 .

[0045] Working principle:

[0046] During testing, the balls in the display area are manually reset to zero. Specifically, staff manually rotate the display plate 25, starting the timer at a specific moment. Each time the connecting rod 5 drives the rotating member 6 through one rotation, the three support plates of the trigger mechanism block the release of only one metering ball 8 from the ball storage area. The metering ball 8 passes through the connecting plate 9 and onto the fourth guide plate 36. When the rotating member 6 and the rack 35 are disengaged, the elastic member 38 causes the pusher 37 to propel the metering ball 8 through the first conveyor assembly to the display area. After fifteen minutes, staff pass through the workshop to inspect the display area of ​​each device to see if a ball is present. If a ball is present, the worm gear 3 and worm 42 of the MD dryer 1 are in transmission. If a ball is not present, a fault is determined. At fifty-five minutes, a second test is performed. Based on the number of measuring balls 8 in the display area, if the number of measuring balls 8 in the display area is between 4 and 6, it is determined that the worm wheel 3 and worm 42 of the MD dryer 1 are in normal operation. If the number of measuring balls 8 exceeds 6 or is less than 4, it is determined that the worm wheel 3 and worm 42 of the MD dryer 1 are in abnormal operation, which greatly improves the detection efficiency and accuracy.

[0047] The above embodiments are intended only to illustrate the technical solutions of the present invention and are not intended to limit the scope of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art will appreciate that the technical solutions of the present invention may be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention, and such modifications or equivalents shall be encompassed by the claims of the present invention. Any techniques, shapes, and structures not described in detail herein are well known.

Claims

1. A worm gear rotation detection device for an MD dryer, mounted on an MD dryer, comprising a connecting rod, characterized in that: The bottom end of the connecting rod shown in the figure passes through the outside of the MD dryer and is fixedly sleeved with a rotating part. A small ball detection mechanism is provided on one side of the rotating part. The small ball detection mechanism includes a ball storage area and a display area. The ball storage area and the display area are connected. A plurality of metering balls are stored in the ball storage area. A trigger mechanism is provided between the rotating part and the ball storage area. One end of the trigger mechanism is transmission connected to the rotating part, and the other end forms a block to the metering balls in the ball storage area. When the rotating part rotates one circle, the trigger mechanism causes the ball storage area to release at least one ball to the display area.

2. The MD dryer worm gear rotation detection device according to claim 1, characterized in that: The ball storage area includes a ball storage plate, which is inclined from top to bottom toward the display area, and the trigger mechanism includes a connecting plate, a transmission assembly and a blocking assembly, and the connecting plate is slidably installed along the left and right directions of the ball storage plate between the lower end of the ball storage plate and the display area. The transmission assembly includes a first rod and a second rod, one end of the first rod is fixedly connected to the connecting plate, and the other end is hinged to one end of the second rod, and the other end of the second rod is hinged to the bottom edge of the rotating member, and the hinge axis of the first rod and the second rod and the hinge axis of the second rod and the rotating member are both parallel to the vertical direction; the blocking assembly includes a main board, one end of the main board is fixedly connected to the connecting plate, and the other end of the main board is provided with at least two support plates axially spaced apart from each other along the ball storage plate, and all of the support plates are staggered in the left and right directions of the ball storage plate, and the distance between two adjacent support plates can accommodate at least one metering ball.

3. The MD dryer worm gear rotation detection device according to claim 1, characterized in that: When the support plate on the left side of the ball storage plate moves to the first position, the support plate on the left side of the ball storage plate abuts and limits the metering balls in the ball storage plate, and the support plate on the right side of the ball storage plate moves to the second position and does not contact the metering balls in the ball storage plate; when the support plate on the left side of the ball storage plate moves to the second position, the support plate on the left side of the ball storage plate does not contact the metering balls in the ball storage plate, and the support plate on the right side of the ball storage plate moves to the first position and abuts and limits the metering balls in the ball storage plate.

4. The MD dryer worm gear rotation detection device according to claim 2, characterized in that: The display area is located outside the middle part of the MD dryer. A circulating transmission mechanism is provided between the display area and the ball storage area. The circulating transmission mechanism includes a first transmission component and a second transmission component. The first transmission component is located between the connecting plate and the display area, and the second transmission component is located between the display area and the end of the ball storage plate away from the connecting plate.

5. The MD dryer worm gear rotation detection device according to claim 4, characterized in that: The first conveying assembly includes a first guide plate, a spiral conveying assembly and a second guide plate. The spiral conveying assembly is vertically arranged. One end of the first guide plate is connected to the end of the connecting plate away from the ball storage plate, and the other end is connected to the bottom end of the spiral conveying assembly. One end of the second guide plate is connected to the top of the spiral conveying assembly, and the other end is connected to the display area. The second guide plate is inclined from top to bottom toward the display area.

6. The MD dryer worm gear rotation detection device according to claim 5, characterized in that: The display area includes a support frame and a display board, one end of the display board is rotatably mounted on the support frame, and a counterweight is provided on the end of the display board close to the support frame, so that the display board tilts from top to bottom toward the support frame, and the end of the display board away from the counterweight is located below the lower end of the second guide plate and the two are connected.

7. The MD dryer worm gear rotation detection device according to claim 6, characterized in that: The second conveying assembly includes a third guide plate, a vertical conveying pipe and a guide pipe. One end of the third guide plate is connected to the top of the vertical conveying pipe, and the other end is located below the end of the display plate away from the counterweight and the two are connected. The third guide plate is inclined from top to bottom toward the direction close to the vertical conveying pipe. One end of the guide pipe is connected to the bottom end of the vertical conveying pipe, and the other end is connected to the high end of the ball storage plate. The guide pipe is inclined from top to bottom toward the direction close to the ball storage plate.

8. The MD dryer worm gear rotation detection device according to claim 5, characterized in that: The rotating member is an incomplete gear tooth, and an elastic mechanism is provided between the end of the first guide plate away from the spiral conveying assembly and the connecting plate. The elastic mechanism includes a fourth guide plate and a pushing member, one end of the fourth guide plate is located obliquely below the end of the connecting plate away from the ball storage plate, and is connected to the end of the first guide plate away from the spiral conveying assembly, the fourth guide plate is inclined from top to bottom in the direction away from the first guide plate, and the pushing member is slidably embedded in the fourth guide plate, and a rack engaged with the rotating member is provided along a horizontal square on one side of the pushing member, and an elastic member is provided between the pushing member and the fourth guide plate. When the rotating member rotates to the third position, the rotating member engages with the rack, the pushing member moves in the direction away from the first guide plate, and the pushing member compresses or stretches the elastic member.

9. The MD dryer worm gear rotation detection device according to claim 2, characterized in that: A fixing plate is provided below the connecting plate, and a dovetail groove is provided on the fixing plate along the left and right directions of the ball storage plate. A connecting piece is provided between the connecting plate and the fixing plate, and the connecting piece includes a dovetail block and a support rod. The dovetail block is slidably embedded in the dovetail groove, and the top end of the support rod is fixedly connected to the bottom of the connecting plate, and the bottom end is fixedly connected to the dovetail block.

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