Emergency manual connection transfer trolley for glass fiber drying and cooling area

Abstract

The application provides an emergency manual connection transfer trolley for a glass fiber drying and cooling area. The trolley comprises a seat assembly, a walking wheel assembly, an energy storage driving assembly, a clutch gear shifting assembly and a damping speed limiting assembly. The energy storage driving assembly provides mechanical walking power. The clutch gear shifting assembly realizes power on-off and bidirectional walking reversing of the walking wheel assembly. The damping speed limiting assembly realizes uniform speed limiting of the walking wheel assembly. The application relies on the energy storage driving assembly to output mechanical walking power, without the need for a motor and electric control. It can adapt to high-temperature and dusty working conditions in the drying and cooling area. The clutch gear shifting assembly is used for power control and reversing. The damping speed limiting assembly is used for uniform walking. When the RGV equipment fails and stops, the device quickly carries out emergency connection and transfer operations, avoids batch quality defects caused by the retention of the cake in a high-temperature environment, reduces production capacity loss and material scrapping risk, and has a simple and reliable overall structure, which is suitable for emergency use on site.

Description

Technical Field

[0001] This invention relates to the technical field of fiberglass production and transfer, and in particular to an emergency manual transfer trolley for fiberglass drying and cooling zones. Background Technology

[0002] The drying and cooling zone in fiberglass production is the core working area for the curing and cooling of fiber cakes. The working conditions are harsh, with the ambient temperature maintained at 80-120℃ for a long time, and a large amount of fiberglass dust floating in the air. Currently, the transfer of fiber cakes on the production line relies entirely on automated RGV transfer trolleys. These types of equipment are equipped with electrical components such as motors, sensors, and communication controls. They work in high-temperature and dusty environments for a long time, which can easily lead to electrical faults such as short circuits, signal loss, and loss of control of the walking mechanism.

[0003] Once the RGV equipment stops, there are no dedicated emergency transfer facilities on site, and the dry yarn at the outlet of the drying furnace cannot be transferred in time, which will cause material accumulation, interruption of the drying logistics chain, and the yarn cake remaining in the high-temperature furnace for a long time. This can easily lead to batch quality defects such as excessive moisture content and uneven color. At the same time, fault handling depends on maintenance personnel to come to the site for inspection, which has a long response time and can easily lead to production line shutdown, capacity loss, and production rhythm disorder. In addition, the accumulation of high-temperature materials poses safety hazards such as burns and collapse.

[0004] At present, the industry lacks a dedicated emergency transfer solution adapted to such harsh working conditions. Some companies are equipped with backup transfer equipment, but it is still an electrically driven structure. When left idle in a high-temperature and dusty environment for a long time, it is prone to electrical aging and component failure, resulting in poor emergency reliability. In addition, the equipment purchase and maintenance costs are high, increasing the production burden of enterprises. Summary of the Invention

[0005] This invention provides an emergency manual transfer trolley for the fiberglass drying and cooling zone to solve the technical problems mentioned in the background section.

[0006] This invention provides an emergency manual transfer trolley for a fiberglass drying and cooling zone. The trolley includes a seat assembly, a wheel assembly, an energy storage drive assembly, a clutch shifting assembly, and a damping speed limiting assembly. The wheel assembly is located at the bottom of the seat assembly and is compatible with the existing RGV track in the drying zone. The energy storage drive assembly is located at the bottom of the seat assembly and connected to the wheel assembly, providing mechanical walking force. The clutch shifting assembly is connected to the energy storage drive assembly and also to the wheel assembly, enabling power switching and bidirectional forward / reverse movement of the wheel assembly. The damping speed limiting assembly is located on the wheel assembly and connected to the seat assembly, ensuring a constant speed limit for the wheel assembly.

[0007] Optionally, the seat assembly includes a vehicle frame, multiple load-bearing roller conveyors, two protective railings, two flip-up railings, two sets of fixing blocks, and two fixing pins. The multiple load-bearing roller conveyors are rotatably mounted on the vehicle frame. The two protective railings are fixedly mounted on both sides of the top of the vehicle frame. The two flip-up railings are respectively mounted on both ends of the vehicle frame. The flip-up railings are hinged to the protective railings. The two sets of fixing blocks correspond one-to-one with the two flip-up railings. Each set of fixing blocks consists of two blocks. The two fixing blocks are fixedly mounted on the protective railings and the flip-up railings. Each fixing block has a fixing hole. The two fixing pins correspond one-to-one with the two sets of fixing blocks and pass through the fixing holes.

[0008] Optionally, the wheel assembly includes a drive shaft, a driven shaft, and two sets of wheels. The drive shaft and the driven shaft are rotatably disposed at the bottom end of the vehicle frame and are located on both sides of the vehicle frame. The two sets of wheels are rotatably disposed on the drive shaft and the driven shaft, respectively. Each set of wheels consists of two wheels, and the two wheels are located at both ends of the vehicle frame.

[0009] Optionally, the energy storage drive assembly includes a sealed box, a disc spring input shaft, a disc spring, multiple pawls, a ratchet, an input gear, a transmission shaft, a drive gear, a mounting shaft, and a handwheel. The sealed box is fixedly disposed at the bottom end of the vehicle frame. The drive shaft is rotatably connected to the sealed box. The disc spring input shaft is rotatably connected to the vehicle frame and also rotatably connected to the sealed box. The outer end of the disc spring is fixedly connected to the inner wall of the sealed box, and its inner end is fixedly connected to the disc spring input shaft. Multiple pawls are fixedly disposed on the side wall of the disc spring input shaft and are evenly arranged in a circumferential shape. The ratchet is loosely fitted. The input gear is coaxially fixed on the ratchet end face and is mounted on the disc spring input shaft, engaging with multiple ratchet pawls. The transmission shaft is located between the drive shaft and the disc spring input shaft and is rotatably connected to the vehicle frame. The transmission gear is coaxially fixed on the transmission shaft and meshes with the input gear. The mounting shaft is rotatably connected to the vehicle frame. The clutch shifting assembly is connected to the transmission shaft and the mounting shaft. The clutch shifting assembly is connected to the drive shaft. The handwheel is located outside the sealed box and is coaxially fixedly connected to the disc spring input shaft.

[0010] Optionally, the clutch shifting assembly includes a clutch part and a shifting part. The clutch part includes a splined bushing, a first clutch element, a clutch fork, a clutch lever, and a second clutch element. The splined bushing is coaxially fixedly disposed at one end of the transmission shaft near the mounting shaft. The first clutch element is slidably disposed on the splined bushing. A clutch groove is formed on the side wall of the first clutch element. The clutch fork is disposed in the clutch groove. One end of the clutch lever is fixedly connected to the clutch fork. The clutch lever is slidably connected to the vehicle body frame. The second clutch element is disposed on the mounting shaft and cooperates with the first clutch element.

[0011] Optionally, the clutch part further includes an axial limiting baffle and a compensating spring. The axial limiting baffle is coaxially fixed on the mounting shaft, and the compensating spring is sleeved on the mounting shaft. The two ends of the compensating spring are respectively fixedly connected to the axial limiting baffle and the second clutch component.

[0012] Optionally, the shifting part includes an engaging gear, a sliding engaging sleeve, a first forward gear, a second forward gear, a first reverse gear, a second reverse gear, a reversing gear, a shift fork, and a shift lever. The engaging gear is coaxially fixed on the mounting shaft. The sliding engaging sleeve is slidably sleeved on the outer circumference of the engaging gear. The sliding engaging sleeve has internal teeth that mesh with the external teeth of the engaging gear. A shifting groove is formed on the side wall of the sliding engaging sleeve. The first forward gear is rotatably connected to the mounting shaft with a loose sleeve. The end face of the first forward gear near the engaging gear has connecting teeth. The second forward gear is coaxial. The first gear is fixedly mounted on the drive shaft and meshes with the first forward gear. The first reverse gear is rotatably connected to the mounting shaft via a loose sleeve. The end face of the first reverse gear near the engaging gear is provided with connecting teeth. The second reverse gear is coaxially fixedly mounted on the drive shaft. The redirecting gear is disposed between the first reverse gear and the second reverse gear. The redirecting gear is rotatably connected to the vehicle frame and meshes with the first reverse gear. The redirecting gear meshes with the second reverse gear. The shift fork is disposed in the shift groove. The shift lever is fixedly connected to the shift fork and slidably connected to the vehicle frame.

[0013] Optionally, the clutch lever and the shift lever are provided with a first drive groove. The clutch shift assembly also includes a control box and two levers. The control box is fixedly installed on one side of the vehicle frame. The top of the control box is provided with two second drive grooves, which correspond to the clutch lever and the shift lever respectively. The two levers pass through the corresponding second drive grooves and pass through the first drive groove, and are slidably connected to the control box.

[0014] Optionally, the damping speed limiting assembly includes a mounting box, a damping rotary disc, a movable pressure plate, an anti-rotation pin, a friction brake pad, a disc spring assembly, and a locking nut. The mounting box is fixedly connected to the vehicle body frame and rotatably connected to the drive shaft. The damping rotary disc is coaxially fixedly connected to the drive shaft. The movable pressure plate is coaxially slidably disposed with respect to the drive shaft. The anti-rotation pin passes through the movable pressure plate and is fixedly connected to the mounting box. The friction brake pad is fixedly disposed on the movable pressure plate and abuts against the damping rotary disc. The disc spring assembly abuts against the movable pressure plate. The locking nut is threadedly connected to the mounting box, and the end of the locking nut abuts against the disc spring assembly.

[0015] The beneficial effects of this invention are as follows: This emergency manual transfer trolley for fiberglass drying and cooling zones includes a seat assembly, a wheel assembly, an energy storage drive assembly, a clutch shifting assembly, and a damping speed limiting assembly. The energy storage drive assembly provides mechanical walking force, the clutch shifting assembly enables power switching and bidirectional forward and backward movement of the wheel assembly, and the damping speed limiting assembly ensures uniform speed control of the wheel assembly. This invention relies on the energy storage drive assembly to output mechanical walking power, eliminating the need for a motor or electronic control. It is suitable for high-temperature and dusty conditions in drying and cooling zones. The clutch shifting assembly enables power control and direction switching, while the damping speed limiting assembly ensures uniform walking speed. When the RGV equipment malfunctions and stops, this device can quickly carry out emergency transfer operations, preventing fiber cakes from remaining in a high-temperature environment and causing batch quality defects, reducing production capacity loss and material scrap risks. The overall structure is simple and reliable, suitable for on-site emergency scenarios. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of an emergency manual transfer trolley for a fiberglass drying and cooling zone provided by the present invention; Figure 2 This is a schematic diagram intended to illustrate the structure of the input gear; Figure 3 yes Figure 2 Enlarged view at point A in the middle; Figure 4 This is a schematic diagram intended to illustrate the structure of the gear shift lever; Figure 5 yes Figure 4 Enlarged view at point B; Figure 6 yes Figure 4 A magnified view at point C; Figure 7 This is a schematic diagram intended to illustrate the structure of a compensating spring; Figure 8 This is a schematic diagram intended to illustrate the structure of a damping speed limiter component.

[0018] Explanation of reference numerals in the attached figures: 1. Seat assembly; 11. Body frame; 12. Load-bearing roller conveyor; 13. Protective fence; 14. Tilting fence; 15. Fixing block; 16. Fixing pin; 2. Traveling wheel assembly; 21. Drive shaft; 22. Driven shaft; 23. Traveling wheel; 3. Energy storage shift assembly; 310. Sealing box; 311. Disc spring input shaft; 312. Disc spring; 313. Pawl; 314. Ratchet; 315. Input gear; 316. Transmission shaft; 317. Drive gear; 318. Mounting shaft; 319. Handwheel; 4. Clutch shift assembly; 41. Clutch part; 411. Splined bushing; 412. First clutch element; 413. Clutch fork ; 414, Clutch lever; 415, Second clutch element; 416, Axial limiting plate; 417, Compensating spring; 42, Gear shifting part; 421, Engaging gear; 422, Sliding engagement sleeve; 423, First forward gear; 424, Second forward gear; 425, First reverse gear; 426, Second reverse gear; 427, Reversing gear; 428, Shift fork; 429, Gear shift lever; 43, Control box; 44, Shift lever; 5, Damping speed limiting assembly; 51, Mounting box; 52, Damping rotary disc; 53, Movable pressure plate; 54, Anti-rotation pin; 55, Friction brake pad; 56, Disc spring assembly; 57, Locking nut. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. It is understood that the specific embodiments described herein are only for explaining the present invention and not for limiting the present invention. Furthermore, it should be noted that, for ease of description, only the parts related to the present invention are shown in the drawings, not all structures. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0020] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0021] Please see Figures 1 to 8 The present invention provides an emergency manual transfer trolley for a fiberglass drying and cooling zone, comprising a seat assembly 1, a wheel assembly 2, an energy storage drive assembly 3, a clutch shifting assembly 4, and a damping speed limiting assembly 5. The walking wheel assembly 2 is located at the bottom of the seat assembly 1 and is adapted to the existing RGV track in the drying area. The energy storage drive assembly 3 is located at the bottom of the seat assembly 1 and is connected to the walking wheel assembly 2. The energy storage drive assembly 3 is used to provide mechanical walking force. The clutch shift assembly 4 is connected to the energy storage drive assembly 3 and to the walking wheel assembly 2. The clutch shift assembly 4 is used to realize the power on / off and the bidirectional forward and backward movement of the walking wheel assembly 2. The damping speed limiting assembly 5 is located on the walking wheel assembly 2 and is connected to the seat assembly 1. The damping speed limiting assembly 5 is used to realize the uniform speed limiting of the walking wheel assembly 2. In this process, workers manually push the transfer trolley to the receiving station, load the yarn cart onto the seat assembly 1 and lock it in place, operate the energy storage drive component 3 to store mechanical power, operate the clutch shift component 4 to disengage the clutch and switch between forward and reverse gears, and then engage the clutch. The energy storage drive component 3 outputs power, which is transmitted to the walking wheel assembly 2, driving the transfer trolley to travel along the RGV track. The damping speed limiting component 5 continuously applies resistance to the walking wheel assembly 2, causing the walking wheel assembly 2 to travel at a constant and limited speed. After reaching the target station, the trolley stops, thus realizing the transfer of the fiberglass filament cake.

[0022] In this embodiment, the seat assembly 1 includes a vehicle frame 11, multiple load-bearing roller conveyors 12, two protective railings 13, two flip railings 14, two sets of fixing blocks 15, and two fixing pins 16. The multiple load-bearing roller conveyors 12 are rotatably mounted on the vehicle frame 11. The two protective railings 13 are respectively fixedly mounted on both sides of the top of the vehicle frame 11. The two flip railings 14 are respectively mounted on both ends of the vehicle frame 11. The flip railings 14 are hinged to the protective railings 13. The two sets of fixing blocks 15 correspond one-to-one with the two flip railings 14. Each set of fixing blocks 15 consists of two blocks. The two fixing blocks 15 are respectively fixedly mounted on the protective railings 13 and the flip railings 14. Each fixing block 15 has a fixing hole. The two fixing pins 16 correspond one-to-one with the two sets of fixing blocks 15. The fixing pins 16 pass through the fixing holes. When loading the yarn cart, pull out the fixing pin 16, release the locking of the flip fence 14, fold the two flip fences 14 to make room for loading and unloading on the left and right sides of the car frame 11, push the yarn cart onto the car frame 11, and the bearing roller 12 rotates passively to reduce the pushing and pulling resistance of the yarn cart. The protective fences 13 on both sides are fixed and play a lateral limiting role to prevent the yarn cart from shifting to the left or right or tipping over. After the yarn cart is in place, align the fixing holes of the two fixing blocks 15 in the same group, insert the fixing pins 16, and lock the flip-over fence 14. The protective fences 13 on both sides and the left and right locked flip-over fences 14 together form a protective boundary, which restricts the front and back and left and right displacement of the yarn cart and prevents the yarn cart from slipping or moving during the transfer process.

[0023] In this embodiment, the walking wheel assembly 2 includes a drive shaft 21, a driven shaft 22, and two sets of walking wheels 23. The drive shaft 21 and the driven shaft 22 are rotatably disposed at the bottom end of the vehicle frame 1 and are respectively located on both sides of the vehicle frame 1. The two sets of walking wheels 23 are respectively rotatably disposed on the drive shaft 21 and the driven shaft 22. Each set of walking wheels 23 has two wheels, and the two walking wheels 23 are respectively located at both ends of the vehicle frame 11. Among them, the drive shaft 21 receives the rotational torque output by the disc spring drive assembly 3, which drives the walking wheels 23 at both ends to rotate, providing driving force for the trolley. When the trolley moves, the walking wheels 23 on the driven shaft 22 are passively rotated by the friction of the track. The walking wheels 23 cooperate with the original RGV track in the drying area and roll in a straight line along the track, limiting the lateral deviation of the trolley and preventing derailment.

[0024] In this embodiment, the energy storage drive assembly 3 includes a sealed box 310, a coil spring input shaft 311, a coil spring 312, multiple pawls 313, a ratchet 314, an input gear 315, a transmission shaft 316, a drive gear 317, a mounting shaft 318, and a handwheel 319. The sealed box 310 is fixedly disposed at the bottom end of the vehicle frame 11. The drive shaft 21 is rotatably connected to the sealed box 310. The coil spring input shaft 311 is rotatably connected to the vehicle frame 11 and also rotatably connected to the sealed box 310. The outer end of the coil spring 312 is fixedly connected to the inner wall of the sealed box 310, and its inner end is fixedly connected to the coil spring input shaft 311. Multiple pawls 313 are fixedly disposed on the side wall of the coil spring input shaft 311 and are evenly arranged in a circumferential shape. The ratchet 314 is loosely fitted on the disc spring input shaft 311 and engages with multiple pawls 313. The input gear 315 is coaxially fixed on the end face of the ratchet 314. The transmission shaft 316 is located between the drive shaft 21 and the disc spring input shaft 311 and is rotatably connected to the vehicle frame 11. The transmission gear 317 is coaxially fixed on the transmission shaft 316 and meshes with the input gear 315. The mounting shaft 318 is rotatably connected to the vehicle frame 11. The clutch shift assembly 4 is connected to the transmission shaft 316 and the mounting shaft 318. The clutch shift assembly 4 is connected to the drive shaft 21. The handwheel 319 is located outside the sealing box 310 and is coaxially fixedly connected to the disc spring input shaft 311. During the energy storage stage, the handwheel 319 on the outside of the sealed box 310 is manually rotated. The handwheel 319 drives the disc spring input shaft 311 to rotate in the forward direction. The inner end of the disc spring 312 follows the rotation of the disc spring input shaft 311. The disc spring 312 undergoes torsional deformation to store elastic potential energy. The pawl 313 rotates together with the disc spring input shaft 311. The pawl 313 slips on the tooth surface of the ratchet 314. The ratchet 314 and the input gear 315 remain stationary. The transmission shaft 316, the clutch shift assembly 4, and the traveling wheel assembly 2 all remain stationary. The transfer trolley does not move. During the energy release phase, the handwheel 319 stops rotating, the coil spring 312 releases its elastic potential energy, causing the coil spring input shaft 311 to rotate in the opposite direction. The pawl 313 engages with the tooth groove of the ratchet 314, and the pawl 313 and the ratchet 314 form a circumferential engagement, causing the ratchet 314 and the input gear 315 to rotate synchronously. The input gear 315 drives the transmission gear 317 to rotate, and the transmission shaft 316 follows the rotation of the transmission gear 317. The transmission shaft 316 outputs power to the drive shaft 21 through the clutch shift assembly 4, thereby driving the transfer trolley to move.

[0025] In this embodiment, the clutch shifting assembly 4 includes a clutch part 41 and a shifting part 42. The clutch part 41 includes a splined bushing 411, a first clutch element 412, a clutch fork 413, a clutch rod 414, and a second clutch element 415. The splined bushing 411 is coaxially fixedly disposed at one end of the transmission shaft 316 near the mounting shaft 318. The first clutch element 412 is slidably disposed on the splined bushing 411. A clutch groove is formed on the side wall of the first clutch element 412. The clutch fork 413 is disposed in the clutch groove. One end of the clutch rod 414 is fixedly connected to the clutch fork 413. The clutch rod 414 is slidably connected to the vehicle frame 11. The second clutch element 415 is disposed on the mounting shaft 318 and cooperates with the first clutch element 412. When the power is cut off, the clutch lever 414 is operated, which drives the clutch fork 413 to move. The clutch fork 413 drives the first clutch component 412 to slide axially along the spline bushing 411. The first clutch component 412 and the second clutch component 415 disengage from each other, and the power of the transmission shaft 316 cannot be transmitted to the mounting shaft 318. When the power is engaged, the clutch lever 414 is operated in the opposite direction, and the clutch fork 413 pushes the first clutch member 412 to move axially. The first clutch member 412 and the second clutch member 415 mesh with each other. The power of the transmission shaft 316 is transmitted to the mounting shaft 318 through the spline bushing 411, the first clutch member 412, and the second clutch member 415 in sequence, and the power is output to the rear shifting part.

[0026] In this embodiment, the clutch part 41 further includes an axial limiting baffle 416 and a compensating spring 417. The axial limiting baffle 416 is coaxially fixedly disposed on the mounting shaft 318, and the compensating spring 417 is sleeved on the mounting shaft 318. The two ends of the compensating spring 417 are respectively fixedly connected to the axial limiting baffle 416 and the second clutch member 415. The first clutch 412 and the second clutch 415 have chamfered tips on their teeth. When the clutch engagement is performed, the chamfered tips of the first clutch 412 and the second clutch 415 make initial contact. The chamfer generates a circumferential force, causing the first clutch 412 and the second clutch 415 to rotate slightly relative to each other, thus achieving tooth misalignment. If the teeth still cannot be aligned and engaged, the second clutch 415 is subjected to axial thrust, compressing the compensation spring 417. The second clutch 415 then axially retracts along the mounting shaft 318, providing clearance space for the tooth engagement. At this time, the input end rotates slightly, and under the guidance of the chamfered tips, the teeth are aligned. The compensation spring 417 releases its elasticity, pushing the second clutch 415 to axially reset, thus achieving smooth tooth engagement and avoiding the failure of the top tooth jamming.

[0027] In this embodiment, the shifting part 42 includes an engaging gear 421, a sliding engaging sleeve 422, a first forward gear 423, a second forward gear 424, a first reverse gear 425, a second reverse gear 426, a reversing gear 427, a shift fork 428, and a shift lever 429. The engaging gear 421 is coaxially fixed on the mounting shaft 318. The sliding engaging sleeve 422 is slidably sleeved on the outer circumference of the engaging gear 421. The sliding engaging sleeve 422 has internal teeth that mesh with the external teeth of the engaging gear 421. A shifting groove is formed on the side wall of the sliding engaging sleeve 422. The first forward gear 423 is rotatably connected to the mounting shaft 318 with a loose sleeve. The end face of the first forward gear 423 near the engaging gear 421 has connecting teeth. The forward gear 424 is coaxially fixed on the drive shaft 318 and meshes with the first forward gear 423. The first reverse gear 425 is rotatably connected to the mounting shaft 318 with a loose sleeve. The first reverse gear 425 has connecting teeth on its end face near the engaging gear 421. The second reverse gear 426 is coaxially fixed on the drive shaft 21. The redirecting gear 427 is disposed between the first reverse gear 425 and the second reverse gear 426. The redirecting gear 427 is rotatably connected to the vehicle frame 11 and meshes with the first reverse gear 425. The redirecting gear 427 meshes with the second reverse gear 426. The shift fork 428 is disposed in the shift groove. The shift lever 429 is fixedly connected to the shift fork 428 and slidably connected to the vehicle frame 11. When switching forward gears, the clutch 41 is disengaged, the shift lever 429 is operated, and the shift fork 428 drives the sliding engagement sleeve 422 to move axially. The sliding engagement sleeve 422 simultaneously meshes with the connecting teeth on the end face of the first forward gear 423 and the engagement gear 421. At this time, the mounting shaft 418 drives the engagement gear 421 to rotate, the sliding engagement sleeve 422 follows the engagement gear 421 to rotate, the sliding engagement sleeve 422 drives the first forward gear 423 to rotate, the second forward gear 424 follows the first forward gear 423 to rotate, the second forward gear 424 drives the drive shaft 21 to rotate, and the transfer trolley moves forward. Reverse gear shift: The clutch 41 is disengaged, the shift lever 429 is operated in the opposite direction, the shift fork 428 drives the sliding engagement sleeve 422 to slide to the other side, the sliding engagement sleeve 422 simultaneously meshes with the connecting teeth of the engagement gear 421 and the first reverse gear 425, the mounting shaft 418 drives the engagement gear 421 to rotate, the sliding engagement sleeve 422 drives the first reverse gear 425 to rotate, the reversing gear 427 simultaneously meshes with the first reverse gear 425 and the second reverse gear 426, the first reverse gear 425 drives the second reverse gear 426 to rotate through the reversing gear 427, the second reverse gear 426 drives the drive shaft 21 to rotate, and the transfer trolley reverses.

[0028] In this embodiment, the clutch lever 414 and the shift lever 429 are provided with first drive grooves. The clutch shift assembly 4 also includes a control box 43 and two levers 44. The control box 43 is fixedly disposed on one side of the vehicle frame 11. The top of the control box 43 is provided with two second drive grooves, which correspond to the clutch lever 414 and the shift lever 429 respectively. The two levers 44 pass through the corresponding second drive grooves and pass through the first drive grooves, and are slidably connected to the control box 43. Specifically, when the lever 44 is moved, it slides linearly along the second drive groove, causing the clutch lever 414 or the shift lever 429 to move axially, indirectly driving the clutch shift fork 413 and the shift shift fork 428 to complete the clutch engagement and disengagement and gear shifting actions. The length of the second drive groove limits the lever stroke, limiting the effective working range of clutch engagement and gear shifting, and preventing overtravel. At the same time, locking grooves are provided at both ends of the second drive groove. When the lever 44 moves to the end of the second drive groove, it directly engages with the locking groove to prevent the lever 44 from shifting during the movement of the transfer trolley.

[0029] In this embodiment, the damping speed limiting component 5 includes a mounting box 51, a damping rotating disk 52, a movable pressure plate 53, an anti-rotation pin 54, a friction brake pad 55, a disc spring assembly 56, and a locking nut 57. The mounting box 51 is fixedly connected to the vehicle frame 11 and rotatably connected to the drive shaft 21. The damping rotating disk 52 is coaxially fixedly connected to the drive shaft 21. The movable pressure plate 53 is slidably arranged coaxially with the drive shaft 21. The anti-rotation pin 54 passes through the movable pressure plate 53 and is fixedly connected to the mounting box 51. The friction brake pad 55 is fixedly arranged on the movable pressure plate 53 and abuts against the damping rotating disk 52. The disc spring assembly 56 abuts against the movable pressure plate 53. The locking nut 57 is threadedly connected to the mounting box 51, and the end of the locking nut 57 abuts against the disc spring assembly 56. When the transfer trolley moves, the drive shaft 21 drives the damping rotary disk 52 to rotate synchronously. The anti-rotation pin 54 is fixed on the mounting box 51 and passes through the movable pressure plate 53, restricting the circumferential rotation of the movable pressure plate 53. This allows the movable pressure plate 53 and the friction brake pad 55 to move only axially. The disc spring assembly 56 is pre-compressed, continuously providing axial clamping force to press the friction brake pad 55 against the end face of the damping rotary disk 52, forming an end face friction pair. The friction generates a reverse resistance torque, which hinders the rotation of the drive shaft 21, consumes the excess output energy of the disc spring 312, and offsets the torque fluctuation during the energy release process of the disc spring 312. This achieves speed limiting of the drive shaft 21 and ensures that the trolley moves at a constant speed. Rotating the locking nut 57 causes the locking nut 57 to move axially along the mounting box 51, changing the compression of the disc spring assembly 56. This adjusts the positive pressure of the friction pair and achieves damping force adjustment.

[0030] This emergency manual transfer trolley for fiberglass drying and cooling zones includes a seat assembly 1, a wheel assembly 2, an energy storage drive assembly 3, a clutch shift assembly 4, and a damping speed limiting assembly 5. The energy storage drive assembly 3 provides mechanical walking force, the clutch shift assembly 4 enables power switching and bidirectional forward and backward movement of the wheel assembly, and the damping speed limiting assembly 5 ensures uniform speed control of the wheel assembly. This invention relies on the energy storage drive assembly 3 to output mechanical walking power, eliminating the need for a motor or electronic control. It is suitable for high-temperature and dusty conditions in drying and cooling zones. The clutch shift assembly 4 completes power control and direction switching, while the damping speed limiting assembly 5 ensures uniform walking speed. When the RGV equipment malfunctions and stops, this device can quickly carry out emergency transfer operations, preventing fiber cakes from being trapped in a high-temperature environment and causing batch quality defects, reducing production capacity loss and material scrap risk. The overall structure is simple and reliable, suitable for use in emergency scenarios.

[0031] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. An emergency manual transfer trolley for a fiberglass drying and cooling zone, characterized in that, include Seat assembly; The traveling wheel assembly is located at the bottom end of the seat assembly and is compatible with the existing RGV track in the drying area; An energy storage drive assembly is disposed at the bottom of the seat assembly and connected to the walking wheel assembly, the energy storage drive assembly being used to provide mechanical walking force; A clutch shifting assembly is connected to the energy storage drive assembly and the walking wheel assembly. The clutch shifting assembly is used to realize the switching of power and the bidirectional walking direction of the walking wheel assembly (forward and backward). A damping speed limiting component is disposed on the traveling wheel assembly and connected to the seat assembly. The damping speed limiting component is used to achieve uniform speed limiting of the traveling wheel assembly.

2. The emergency manual transfer trolley for the fiberglass drying and cooling zone according to claim 1, characterized in that, The vehicle seat assembly includes a vehicle frame, multiple load-bearing roller conveyors, two protective railings, two flip-up railings, two sets of fixing blocks, and two fixing pins. The multiple load-bearing roller conveyors are rotatably mounted on the vehicle frame. The two protective railings are fixedly mounted on both sides of the top of the vehicle frame. The two flip-up railings are respectively mounted on both ends of the vehicle frame. The flip-up railings are hinged to the protective railings. The two sets of fixing blocks correspond one-to-one with the two flip-up railings. Each set of fixing blocks consists of two blocks. The two fixing blocks are fixedly mounted on the protective railings and the flip-up railings. Each fixing block has a fixing hole. The two fixing pins correspond one-to-one with the two sets of fixing blocks and pass through the fixing holes.

3. The emergency manual transfer trolley for the fiberglass drying and cooling zone according to claim 2, characterized in that, The wheel assembly includes a drive shaft, a driven shaft, and two sets of wheels. The drive shaft and the driven shaft are rotatably mounted on the bottom end of the vehicle frame and are located on both sides of the vehicle frame. The two sets of wheels are rotatably mounted on the drive shaft and the driven shaft, respectively. Each set of wheels consists of two wheels, and the two wheels are located at both ends of the vehicle frame.

4. The emergency manual transfer trolley for a fiberglass drying and cooling zone according to claim 3, characterized in that, The energy storage drive assembly includes a sealed box, a disc spring input shaft, a disc spring, multiple pawls, a ratchet, an input gear, a transmission shaft, a drive gear, a mounting shaft, and a handwheel. The sealed box is fixedly mounted at the bottom end of the vehicle frame. The drive shaft is rotatably connected to the sealed box. The disc spring input shaft is rotatably connected to the vehicle frame and also rotatably connected to the sealed box. The outer end of the disc spring is fixedly connected to the inner wall of the sealed box, and its inner end is fixedly connected to the disc spring input shaft. Multiple pawls are fixedly mounted on the side wall of the disc spring input shaft and are evenly arranged in a circumferential shape. The ratchet is loosely fitted onto the disc spring. The disc spring input shaft is mounted on a plurality of ratchet pawls, and the input gear is coaxially fixedly mounted on the end face of the ratchet. The transmission shaft is located between the drive shaft and the disc spring input shaft and is rotatably connected to the vehicle frame. The transmission gear is coaxially fixedly mounted on the transmission shaft and meshes with the input gear. The mounting shaft is rotatably connected to the vehicle frame. The clutch shift assembly is connected to the transmission shaft and the mounting shaft. The clutch shift assembly is connected to the drive shaft. The handwheel is located outside the sealed box and is coaxially fixedly connected to the disc spring input shaft.

5. The emergency manual transfer trolley for the fiberglass drying and cooling zone according to claim 4, characterized in that, The clutch shifting assembly includes a clutch part and a shifting part. The clutch part includes a splined bushing, a first clutch element, a clutch fork, a clutch lever, and a second clutch element. The splined bushing is coaxially fixedly disposed at one end of the transmission shaft near the mounting shaft. The first clutch element is slidably disposed on the splined bushing. A clutch groove is formed on the side wall of the first clutch element. The clutch fork is disposed in the clutch groove. One end of the clutch lever is fixedly connected to the clutch fork. The clutch lever is slidably connected to the vehicle body frame. The second clutch element is disposed on the mounting shaft and cooperates with the first clutch element.

6. The emergency manual transfer trolley for a fiberglass drying and cooling zone according to claim 5, characterized in that, The clutch part also includes an axial limiting baffle and a compensating spring. The axial limiting baffle is coaxially fixed on the mounting shaft, and the compensating spring is sleeved on the mounting shaft. The two ends of the compensating spring are respectively fixedly connected to the axial limiting baffle and the second clutch component.

7. The emergency manual transfer trolley for the fiberglass drying and cooling zone according to claim 5, characterized in that, The shifting unit includes an engaging gear, a sliding engaging sleeve, a first forward gear, a second forward gear, a first reverse gear, a second reverse gear, a reversing gear, a shift fork, and a shift lever. The engaging gear is coaxially fixed on the mounting shaft. The sliding engaging sleeve is slidably sleeved on the outer circumference of the engaging gear. The sliding engaging sleeve has internal teeth that mesh with the external teeth of the engaging gear. A shift groove is formed on the side wall of the sliding engaging sleeve. The first forward gear is rotatably connected to the mounting shaft with a loose sleeve. The end face of the first forward gear near the engaging gear has connecting teeth. The second forward gear is coaxially fixed... The first reverse gear is fixedly mounted on the drive shaft and meshes with the first forward gear. The first reverse gear is rotatably connected to the mounting shaft via a loose sleeve. The end face of the first reverse gear near the engaging gear is provided with connecting teeth. The second reverse gear is coaxially fixedly mounted on the drive shaft. The redirecting gear is disposed between the first reverse gear and the second reverse gear. The redirecting gear is rotatably connected to the vehicle frame and meshes with the first reverse gear. The redirecting gear meshes with the second reverse gear. The shift fork is disposed in the shift groove. The shift lever is fixedly connected to the shift fork and slidably connected to the vehicle frame.

8. The emergency manual transfer trolley for the fiberglass drying and cooling zone according to claim 7, characterized in that, The clutch lever and the shift lever are provided with first drive slots. The clutch shift assembly also includes a control box and two levers. The control box is fixedly installed on one side of the vehicle frame. The top of the control box is provided with two second drive slots, which correspond to the clutch lever and the shift lever respectively. The two levers pass through the corresponding second drive slots and pass through the first drive slots, and are slidably connected to the control box.

9. The emergency manual transfer trolley for a fiberglass drying and cooling zone according to claim 3, characterized in that, The damping speed limiter assembly includes a mounting box, a damping rotary disc, a movable pressure plate, an anti-rotation pin, a friction brake pad, a disc spring assembly, and a locking nut. The mounting box is fixedly connected to the vehicle body frame and rotatably connected to the drive shaft. The damping rotary disc is coaxially fixedly connected to the drive shaft. The movable pressure plate is slidably coaxially connected to the drive shaft. The anti-rotation pin passes through the movable pressure plate and is fixedly connected to the mounting box. The friction brake pad is fixedly mounted on the movable pressure plate and abuts against the damping rotary disc. The disc spring assembly abuts against the movable pressure plate. The locking nut is threadedly connected to the mounting box, and the end of the locking nut abuts against the disc spring assembly.

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