Logistics spiral elevator chain and chain plate fracture early warning system

Abstract

The utility model relates to a chain and chain plate fracture early warning system of a logistics spiral elevator, which comprises a silk thread assembly, the silk yarn loaders are arranged on a chain plate bearing rail of the spiral elevator at intervals, the chain plate is arranged close to the spiral elevator in a surrounding mode through the silk yarn loaders, one end of the silk yarn is fixed to a shell of the spiral elevator, and the other end of the silk yarn penetrates through a chain wheel of the spiral elevator. The photoelectric switch reflecting plate is arranged at the end part of a silk thread penetrating through the chain wheel; the photoelectric switch is arranged on a rack, close to the photoelectric switch reflecting plate, of the spiral elevator; the PLC is in signal connection with the photoelectric switch; the PLC receives the photoelectric signals and judges the phenomena of vibration, clamping or breakage and the like of the chain and the chain plate based on the photoelectric signals, the photoelectric switch technology and the yarn sensor technology are combined, and fault signals can be accurately captured and timely responded at the early stage of breakage of the chain.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of logistics spiral elevator especially relates to a logistics spiral elevator chain and chain plate fracture early warning system. BACKGROUND

[0002] In the warehouse logistics operation work, spiral elevator becomes a kind of popular and key equipment more and more, it is the important passage of connecting upper and lower floor goods transmission, it is transmitted through the reciprocating motion of chain, chain wheel and chain plate in guide rail, the power of motor, with the advantages of small footprint, high efficiency.Due to the long transmission distance of chain and chain plate, once chain and chain plate fall off, and motor continues to rotate at high speed, it will cause large-area interlocking equipment failure.To reduce accidents, the equipment needs to be warned in the early stage of chain fracture or chain plate sharp shaking, and emergency shutdown, to avoid problem amplification.

[0003] The original equipment spiral elevator does not install chain and chain plate fracture and chain wheel jamming early warning facilities, only thermal relay protection and chain breakage protection switch protection, once there is a problem, high-speed rotating chain will cause accident and serious amplification, even the entire chain plate is wound and damaged, until the contactor overheats or frequency converter alarm can stop, especially in unattended condition, the property loss caused is huge, and the splashing equipment parts also endanger the safety of surrounding equipment and personnel.Therefore, it is urgent to give early warning to the accident and solve the hidden danger of safe operation. UTILITY MODEL CONTENTS

[0004] Therefore, the utility model provides a logistics spiral elevator chain and chain plate fracture early warning system to overcome the hidden danger problem of safe operation of spiral elevator in prior art due to not having real-time detection and early warning function before failure.

[0005] To achieve the above-mentioned purpose, the utility model provides a logistics spiral elevator chain and chain plate fracture early warning system, which comprises:

[0006] The silk assembly comprises a silk carrier arranged at intervals on the chain plate bearing track of the spiral elevator and a silk wire wound around the silk carrier and arranged close to the chain plate of the spiral elevator, one end of the silk wire is fixed to the shell of the spiral elevator, and the other end of the silk wire passes through the chain wheel of the spiral elevator.

[0007] The detection assembly comprises a photoelectric switch reflector arranged at the end of the silk wire passing through the chain wheel, a photoelectric switch arranged on the rack of the spiral elevator close to the photoelectric switch reflector, and a PLC connected with the photoelectric switch signal.

[0008] The wire is used to sense the vibration of the chain plate or chain of the spiral elevator during the working process and transmit the vibration to the photoelectric switch reflector to make the photoelectric switch reflector displace.

[0009] The photoelectric switch is used to convert the displacement of the photoelectric switch reflector into a photoelectric signal.

[0010] Further, the wire carrier comprises a bearing part for bearing the wire, a tensioning part arranged at the bottom of the bearing part for supporting the bearing part, a hinge shaft arranged between the tensioning part and the bearing part for movably connecting the tensioning part and the bearing part, and a limiting rod arranged at the upper part of the tensioning part close to the hinge shaft for limiting the movable angle of the bearing part.

[0011] Further, the tensioning part comprises a fixing block, a limiting block, an elastic member and a pin shaft seat, the fixing block is provided with a mounting groove for accommodating the hinge shaft and the pin shaft seat, the hinge shaft and the pin shaft seat are rotationally connected, the limiting block is arranged at one end of the hinge shaft facing the mounting groove, the mounting groove is provided with a limiting groove matched with the limiting block, the limiting block is clamped with the limiting groove, the limiting rod is arranged on the fixing block, and the elastic member is arranged inside the mounting groove, one end of the elastic member abuts against the pin shaft seat, and the other end of the elastic member abuts against the mounting groove.

[0012] Further, the elastic member comprises a spring.

[0013] Further, the limiting rod and the fixing block are in an integral structure.

[0014] Further, the detection device further comprises a heavy hammer, the heavy hammer is connected with the photoelectric switch reflector through the wire.

[0015] Further, the wire bearing part comprises a plurality of wire bearing parts arranged on the chain plate bearing track,

[0016] Further, a wire sensing device is arranged on the shell of the spiral elevator close to the wire for detecting the breaking state of the wire.

[0017] Further, a PLC is arranged on the rack of the spiral elevator and electrically connected with the photoelectric switch and the wire sensing device, for receiving the photoelectric signal of the photoelectric switch and the breaking signal of the wire sensing device.

[0018] Further, a relay is electrically connected with the PLC, for performing equipment fault alarm and fault shutdown based on the signal of the PLC.

[0019] Compared with the prior art, the beneficial effects of the utility model lie in, the utility model through the mutual cooperation between the silk thread assembly and the detection assembly, can real-time monitoring the vibration state of chain and chain plate in the running process, when the chain and chain plate break, jam or abnormal vibration, the system can pass to PLC through photoelectric signal fast transmission and make an alarm or stop processing under different abnormal conditions, compared with the traditional technology, the early warning system of the utility model significantly improves the operation safety of the spiral elevator, avoids the large area damage and safety accident of equipment caused by chain fracture or chain plate jam, simultaneously, the utility model combines photoelectric switch and silk sensor technology, can accurately capture fault signal and respond in time in the early stage of chain fracture. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the whole structure schematic view of the early warning system of the utility model for logistics spiral elevator chain and chain plate fracture;

[0021] Figure 2 It is the whole structure schematic view of the early warning system of the utility model for logistics spiral elevator chain and chain plate fracture; Figure 1 It is the enlarged schematic view of A place in the utility model;

[0022] Figure 3 It is the partial mechanism schematic view of another view of the track of the utility model for logistics spiral elevator.

[0023] Wherein: 1-spiral elevator, 2-chain, 3-chain plate, 4-weight, 5-photoelectric switch, 6-photoelectric switch reflector, 7-silk sensor, 8-silk thread, 9-bearing part, 10-hinge shaft, 11-fixed block, 12-elastic member, 13-limiting block, 14-limiting rod, 15-track, 16-pivot seat. DETAILED DESCRIPTION

[0024] In order to make the purpose and advantages of the utility model more clear and obvious, the utility model is further described below in conjunction with examples;It should be understood that the specific examples described herein are only used to explain the utility model, and are not used to limit the utility model.

[0025] The preferred embodiments of the utility model are described below with reference to the drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the utility model, and are not used to limit the protection scope of the utility model.

[0026] It should be noted that in the description of the utility model, the terms "upper", "lower", "left", "right", "inner", "outer" and the like indicate the direction or positional relationship of the terms based on the direction or positional relationship shown in the drawings, which is only for the convenience of description, and does not indicate or imply that the device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the utility model.

[0027] Further, it needs to be explained that, in the description of the utility model, unless another explicit provision and limitation, the terms "mount", "connect", "connection" should be understood broadly, for example, can be fixed connection, also can be detachable connection, or integrally connected, can be mechanical connection, also can be electrical connection, can be directly connected, also can be indirectly connected through intermediate medium, can be the communication inside two elements. For the person skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.

[0028] Please refer to Figure 1 As shown in the figure, it is the overall structure schematic diagram of the logistics spiral elevator chain chain plate fracture early warning system of the utility model.

[0029] The utility model embodiment provides a kind of logistics spiral elevator chain chain plate fracture early warning system, comprising:

[0030] Yarn assembly, it includes the yarn carrier that is spaced apart on the chain plate 3 bearing track 15 of spiral elevator 1 and the yarn 8 that is set around yarn carrier close to the chain plate 3 of spiral elevator 1, one end is fixed in the shell of spiral elevator 1 and the other end passes through the sprocket of spiral elevator 1;

[0031] Detection assembly, it includes the photoelectric switch reflector 6 of the end of yarn 8 passing through sprocket, photoelectric switch 5 is set on the rack of spiral elevator 1 close to photoelectric switch reflector 6;

[0032] Wherein, yarn 8 is used to feel the vibration of chain plate 3 or chain 2 of spiral elevator 1 in working process, and vibration is transmitted to photoelectric switch reflector 6 to make photoelectric switch reflector 6 produce displacement;

[0033] Photoelectric switch 5 is used to convert the displacement generated by photoelectric switch reflector 6 into photoelectric signal, and is transmitted to PLC.

[0034] Specifically, the yarn carrier in the yarn assembly of the utility model embodiment bears yarn 8 in the working process of spiral elevator 1, so that yarn 8 keeps close to chain plate 3 and chain 2, yarn 8 feels vibration from chain plate 3 and chain 2, so as to transmit vibration to photoelectric switch reflector 6 to make photoelectric switch reflector 6 produce displacement, photoelectric switch 5 converts the displacement of photoelectric switch reflector 6 into photoelectric signal, and PLC receives photoelectric signal and judges the vibration, jamming or fracture of chain 2 and chain plate 3 based on photoelectric signal.

[0035] In addition, the yarn 8 in the utility model can be nylon material, and the distance range of yarn 8 close to chain plate 3 and chain 2 is 2-6MM, wherein the utility model preferably 3MM, so that yarn 8 can better feel vibration from chain plate 3 and chain 2.

[0036] Referring to Figure 2 As shown in the utility model Figure 1 The enlarged view of A in the middle.

[0037] In the embodiment of the utility model, the silk thread carrier includes a bearing part 9 for bearing the silk thread 8, a tensioning part arranged at the bottom of the bearing part 9 for supporting the bearing part 9, a hinge shaft 10 arranged between the tensioning part and the bearing part 9 for movably connecting the tensioning part and the bearing part 9, and a limiting rod 14 arranged at the upper part of the tensioning part close to the hinge shaft 10 for limiting the movable angle of the bearing part 9. In the above structure, the tensioning part and the hinge shaft 10 of the silk thread carrier are designed, which can better bear and fix the silk thread 8, improve the stability of the silk thread 8, and further enhance the reliability of the equipment operation by limiting the movable angle of the bearing part 9 through the limiting rod 14.

[0038] The tensioning part includes a fixed block 11, an elastic member 12, a limiting block 13 and a pin shaft seat 16. The fixed block 11 is provided with a mounting groove for accommodating the hinge shaft 10 and the pin shaft seat 16. The hinge shaft 10 is rotatably connected with the pin shaft seat 16. The limiting block 13 is arranged at one end of the pin shaft seat 16 facing the mounting groove. The mounting groove is provided with a limiting groove matched with the limiting block 13. The limiting block 13 is clamped with the limiting groove. The limiting rod 14 is arranged at the upper part of the outer side wall of the fixed block 11. The elastic member 12 is arranged inside the mounting groove, one end of which abuts against the pin shaft seat 16, and the other end of which abuts against the mounting groove. The limiting block 13 can avoid the hinge shaft 10 from falling off the fixed block 11. The above structure not only enhances the structural stability of the silk thread carrier, but also improves the accuracy of vibration transmission and reduces the possibility of equipment false alarm.

[0039] The elastic member 12 includes a spring. It is worth noting that the elastic member 12 in the utility model is not limited to a spring. Other elastic members 12 that are elastically matched and provide a certain direction also belong to the protection scope of the utility model, such as one of a tension spring and a torsion spring. The utility model does not make specific limitations thereon. The elastic member 12 in the utility model can buffer the vibration of the bearing part 9 during work, so that this part of vibration will not be transmitted to the photoelectric switch 5 through the silk thread 8 and the photoelectric switch reflector 6, avoiding the occurrence of errors and further improving the early warning performance of the equipment.

[0040] The integrated structure design of the limiting rod 14 and the tensioning part simplifies the installation and maintenance of the components, and further improves the strength and durability of the overall structure.

[0041] The limiting rod 14 and the fixed block 11 are an integrated structure. The utility model designs the integrated structure of the limiting rod 14 and the fixed block 11, which simplifies the installation and maintenance of the components, and further improves the strength and durability of the overall structure.

[0042] The detection device further comprises a weight 4 connected with the photoelectric switch reflecting plate 6 through a silk thread 8, in the above structure, the weight 4 structure makes the silk thread 8 always keep the best tension, ensures the stability and accuracy of signal transmission, and effectively prevents false alarm caused by false touch of the silk thread 8.

[0043] Please refer to Figure 3 As shown in the figure, it is a partial mechanism schematic view of another view of the logistics spiral elevator track of the utility model.

[0044] In the embodiment of the utility model, the bearing part 9 comprises a plurality of bearing parts 9 which are arranged on the chain plate 3 bearing track 15 in parallel and at intervals, the plurality of bearing parts 9 are arranged on the chain plate 3 bearing track 15 at intervals, so that the silk thread 8 can fully cover the chain plate 3 and the chain 2 area, and the detection range and accuracy are effectively improved.

[0045] The utility model further includes a silk sensor 7 which is arranged on the shell of the spiral elevator 1 close to the silk thread 8 to detect the breaking state of the silk thread 8, through the design of the silk sensor 7, the breaking state of the silk thread 8 can be detected, and the comprehensiveness and reliability of equipment fault detection are further improved.

[0046] The utility model further includes a PLC which is arranged on the rack of the spiral elevator 1 and is electrically connected with the photoelectric switch 5 and the silk sensor 7 to receive the photoelectric signal of the photoelectric switch 5 and the breaking signal of the silk sensor 7, the utility model adopts the above structure, the design is simple, the modular degree is high, and the installation and maintenance are convenient, and various complex working environments can be adapted.

[0047] The utility model further includes a relay which is electrically connected with the PLC to perform equipment fault alarm and fault shutdown based on the signal of the PLC, the cooperation of the PLC and the relay realizes the whole process control logic from light fault alarm to serious fault shutdown, significantly reduces the false alarm rate, and improves the operation efficiency.

[0048] The working process of the embodiment of the utility model:

[0049] When the spiral elevator 1 works, the silk thread 8 senses the vibration of the chain 2 and the chain plate 3, and transmits the vibration to the photoelectric switch reflecting plate 6, the photoelectric switch 5 receives the displacement of the photoelectric switch reflecting plate 6, and converts the displacement into a photoelectric signal and transmits the photoelectric signal to the PLC, the PLC judges that the signal automatically disappears within 5 seconds, which is a light fault, and the alarm does not stop, reminding that the chain 2 may be loose and needs to be checked and maintained, so that the existence of frequent false alarms caused by equipment vibration is avoided.

[0050] If the signal is still present after 5 seconds, and the frequency converter fault alarm signal is present at the same time, it indicates that there may be a serious jam, and the system sends an immediate stop signal, the relay acts, the device alarms and stops;

[0051] If the signal is still present after 5 seconds, and the frequency converter fault alarm signal is present at the same time, it indicates that there may be a serious jam, and the system sends an immediate stop signal, the relay acts, the device alarms and stops;

[0052] The technical scheme of the utility model has been described in combination with the preferred embodiments shown in the drawings, but it is easy for those skilled in the art to understand that the protection scope of the utility model is obviously not limited to these specific embodiments. Those skilled in the art can make equivalent changes or replacements to relevant technical features without deviating from the principles of the utility model, and the technical schemes after these changes or replacements will all fall within the protection scope of the utility model.

[0053] The above is only the preferred embodiment of the utility model and is not used for limiting the utility model; for those skilled in the art, the utility model can have various changes and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A logistic spiral elevator chain plate fracture early warning system, characterized in that, The application relates to a detection device for a spiral elevator, which comprises the following components: a wire assembly, which comprises a wire carrier arranged on a chain plate bearing track of the spiral elevator and a wire wound around the wire carrier and arranged on a chain plate of the spiral elevator, one end of the wire being fixed on an outer shell of the spiral elevator and the other end of the wire passing through a chain wheel of the spiral elevator; a detection assembly, which comprises a photoelectric switch reflector arranged on an end of the wire passing through the chain wheel, a photoelectric switch arranged on a frame of the spiral elevator close to the photoelectric switch reflector, and a PLC connected with the photoelectric switch; wherein the wire is used to sense vibration of the chain plate or chain of the spiral elevator during operation and transmit the vibration to the photoelectric switch reflector so that the photoelectric switch reflector is displaced; the photoelectric switch is used to convert the displacement of the photoelectric switch reflector into a photoelectric signal.

2. The logistic helical elevator chain chain plate fracture early warning system according to claim 1, characterized in that, The wire carrier comprises a bearing part for bearing the wire, a tensioning part arranged at the bottom of the bearing part for supporting the bearing part, a hinge shaft arranged between the tensioning part and the bearing part for movably connecting the tensioning part and the bearing part, and a limiting rod arranged at the upper part of the tensioning part close to the hinge shaft for limiting the movable angle of the bearing part.

3. The logistic helical elevator chain breakage early warning system according to claim 2, characterized in that, The tensioning part comprises a fixing block, a limiting block, an elastic member and a pin shaft seat, the fixing block is provided with a mounting groove for accommodating the hinge shaft and the pin shaft seat, the hinge shaft and the pin shaft seat are rotationally connected, the limiting block is arranged at one end of the hinge shaft facing the mounting groove, the mounting groove is provided with a limiting groove matched with the limiting block, the limiting block is clamped with the limiting groove, the limiting rod is arranged on the fixing block, and the elastic member is arranged in the mounting groove, one end of the elastic member abuts against the pin shaft seat, and the other end of the elastic member abuts against the mounting groove.

4. The logistic helical elevator chain breakage early warning system according to claim 3, characterized in that, The elastic member comprises a spring.

5. The logistic helical elevator chain breakage early warning system of claim 3, wherein, The limiting rod and the fixing block are in an integral structure.

6. The logistic helical elevator chain chain plate breakage early warning system according to claim 1, characterized in that, The detection device further comprises a heavy hammer connected with the photoelectric switch reflector through the wire.

7. The logistic helical elevator chain breakage early warning system of claim 2, wherein The bearing part comprises a plurality of bearing parts arranged on the chain plate bearing track.

8. The logistic helical elevator chain chain plate breakage early warning system according to claim 1, characterized in that, The detection device further comprises a wire sensor arranged on the outer shell of the spiral elevator close to the wire for detecting the breaking state of the wire.

9. The logistic helical elevator chain chain-link breakage early warning system of claim 8, wherein, The detection device further comprises a PLC arranged on the frame of the spiral elevator and electrically connected with the photoelectric switch and the wire sensor, for receiving the photoelectric signal of the photoelectric switch and the breaking signal of the wire sensor.

10. The logistic helical elevator chain chain plate breakage early warning system according to claim 9, characterized in that, The detection device further comprises a relay electrically connected with the PLC, for executing equipment fault alarm and fault shutdown based on the signal of the PLC.

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