CN113060626A - Abnormal elongation sensor for step chain - Google Patents
Abnormal elongation sensor for step chain Download PDFInfo
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- CN113060626A CN113060626A CN202110400697.1A CN202110400697A CN113060626A CN 113060626 A CN113060626 A CN 113060626A CN 202110400697 A CN202110400697 A CN 202110400697A CN 113060626 A CN113060626 A CN 113060626A
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- 230000002159 abnormal effect Effects 0.000 title claims abstract description 29
- 230000035939 shock Effects 0.000 claims abstract description 42
- 230000007246 mechanism Effects 0.000 claims abstract description 33
- 238000006073 displacement reaction Methods 0.000 claims abstract description 29
- 238000013016 damping Methods 0.000 claims abstract description 23
- 238000010521 absorption reaction Methods 0.000 claims description 33
- 238000001514 detection method Methods 0.000 abstract description 12
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000006835 compression Effects 0.000 abstract description 2
- 238000007906 compression Methods 0.000 abstract description 2
- 210000003850 cellular structure Anatomy 0.000 abstract 1
- 230000000694 effects Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 230000008859 change Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000001413 cellular effect Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B21/00—Kinds or types of escalators or moving walkways
- B66B21/02—Escalators
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B23/00—Component parts of escalators or moving walkways
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B23/00—Component parts of escalators or moving walkways
- B66B23/02—Driving gear
- B66B23/024—Chains therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B23/00—Component parts of escalators or moving walkways
- B66B23/16—Means allowing tensioning of the endless member
- B66B23/18—Means allowing tensioning of the endless member for carrying surfaces
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/06—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs
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- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
The invention discloses an abnormal elongation sensor for a step chain, which relates to the technical field of escalators and comprises a first fixed shell, a second fixed shell and a damping support mechanism, wherein a first sensor main body is arranged in the middle of the upper part of the first fixed shell, displacement sensor heads are arranged on two sides of the upper part of the first sensor main body, the second fixed shell is arranged on one side of the first fixed shell, and a movable connecting mechanism is connected between the second fixed shell and the first fixed shell. The invention has the beneficial effects that: the device is provided with shock attenuation supporting mechanism, and first honeycomb bradyseism board and second honeycomb bradyseism board are cellular structure can absorb the shaking force, and V-arrangement damper plate cooperation damping spring between first honeycomb bradyseism board and the second honeycomb bradyseism board can play the resistance to compression and alleviate the effect of vibrations, reduces the shaking force of conducting to first set casing and second set casing to can not influence the detection precision of first sensor main part and second sensor main part.
Description
Technical Field
The invention relates to the technical field of escalators, in particular to a sensor for abnormal extension of a step chain.
Background
The escalator is composed of a chain conveyor with special structure and two belt conveyors with special structure, and has a circulating moving ladder way for transporting passengers upwards or downwards between different floor heights of a building. The step chain is an important component of the escalator, when the total tensioning elongation of the step chain is equal to 200mm in operation, namely the step chain is stretched by 1 step pitch, a step and the step chain need to be removed for adjustment. The operation stability and the ladder path structure do not allow the step chain to extend beyond one step distance, when the extension of the step chain is more than 1 step distance, the number of flat layers can be changed, and the ladder path can extend; the floor plate system, the comb plate system and the guide rail system are fixed, so that the problems of interference fit on the structure, insufficient overhaul space, unstable operation and the like can occur; the adjustable tensioning expansion stroke is determined to be not more than 100mm structurally. When the step chain is excessively extended due to abrasion, the hidden danger of a step slipping accident is easy to occur, and therefore, the step chain needs to be detected by a corresponding sensor.
The existing step chain extension sensor cannot accurately monitor the corresponding position of a step chain in real time, is not enough in stability, is influenced by the vibration condition easily caused by the influence of driving force in the using process of an escalator, is inconvenient to avoid the generation of slide accidents, and therefore, the step chain extension sensor is provided.
Disclosure of Invention
The invention aims to provide a step chain abnormal extension sensor, which solves the problems that the existing step chain extension sensor proposed in the background technology cannot accurately monitor the corresponding position of a step chain in real time, has insufficient stability, is easy to generate vibration condition due to the influence of driving force in the using process of an escalator, influences the detection accuracy and is inconvenient to avoid the occurrence of a step sliding accident.
In order to achieve the purpose, the invention provides the following technical scheme: a sensor for abnormal extension of a step chain comprises a first fixed shell, a second fixed shell and a damping support mechanism, wherein a first sensor main body is arranged in the middle of the upper portion of the first fixed shell, displacement sensor heads are arranged on two sides of the upper portion of the first sensor main body, the second fixed shell is arranged on one side of the first fixed shell, a movable connecting mechanism is connected between the second fixed shell and the first fixed shell, a second sensor main body is arranged above the second fixed shell, an ultrasonic sensor head is arranged above the second sensor main body, lug plates are fixed on the front side and the rear side of the first fixed shell and the rear side of the second fixed shell, threaded holes are formed in the lug plates, sliding adjusting mechanisms are arranged on two sides of the second sensor main body, the damping support mechanism is fixed on the lower sides of the first fixed shell and the second fixed shell, the damping support mechanism comprises a first honeycomb damping plate and a second honeycomb damping plate, the top of first honeycomb bradyseism board is connected with second honeycomb bradyseism board through V-arrangement shock attenuation board, be connected with fixed even board between the V-arrangement shock attenuation board, and fixed even board and first honeycomb bradyseism board or second honeycomb bradyseism board between install damping spring, the bearing frame is installed through the bolt in the below of first set casing, and the inside of bearing frame is provided with the step chain through the pivot.
Preferably, the displacement sensor heads are arranged in two numbers, and an integrated structure is formed between the displacement sensor heads and the first sensor main body.
Preferably, the movable connecting mechanism comprises a first rotating block, a first movable shaft, a middle shaft, a second movable shaft, a second rotating block and a rotary spring, the left side of the middle shaft is connected with the first rotating block through the first movable shaft, the first rotating block is fixedly connected with the first fixed shell, the right side of the middle shaft is connected with the second rotating block through the second movable shaft, the second rotating block is fixedly connected with the second fixed shell, and the rotary spring is welded between the middle shafts.
Preferably, the middle shafts are symmetrical about the transverse center lines of the first fixed shell and the second fixed shell, and the middle shafts are movably connected with the first rotating block and the second rotating block through the first movable shaft and the second movable shaft respectively.
Preferably, the number of the ultrasonic sensor heads is three, and the ultrasonic sensor heads are distributed in a structure like a Chinese character pin.
Preferably, the slide adjusting mechanism is including slider, fixed block, locking bolt, expanding spring, locating piece, block rubber and spout, the both sides of second sensor main part all are fixed with the slider, and the outside middle part of slider is connected with the fixed block, the middle part of slider runs through there is locking bolt, both sides all are fixed with expanding spring around the fixed block, and expanding spring's top is fixed with the locating piece, the front side of locating piece is provided with the block rubber, the middle part inboard of second set casing is provided with the spout.
Preferably, the positioning block and the rubber block form an elastic structure with the fixed block through a telescopic spring, and the fixed block is fixedly connected with the sliding block.
Preferably, the first honeycomb cushioning plate, the second honeycomb cushioning plate and the V-shaped cushioning plate are of an integrated structure, and the symmetric center of the V-shaped cushioning plate is coincided with the symmetric centers of the first honeycomb cushioning plate and the second honeycomb cushioning plate.
Preferably, the step chain forms a rotating structure with the bearing frame through the rotating shaft, and the symmetric center of the step chain coincides with the symmetric center of the displacement sensor head.
The invention provides an abnormal elongation sensor for a step chain, which has the following beneficial effects:
1. the invention is provided with a first sensor main body, two displacement sensor heads on the first sensor main body can be respectively arranged at the tensioning positions of the step chains at the lower sides of the two step chains, so that the detection of the lower sides of the middle parts of the step chains can be conveniently carried out through the displacement sensor heads, the elongation of the step chains can be measured, if the step chains are abnormally elongated, the middle part of the step chains can droop to directly influence detection data, so that the abnormal elongation of the step chains can be conveniently detected through the displacement sensor heads, and the displacement sensor can monitor the elongation trend change, the elongation rate and the elongation synchronicity of two sides of the step chains.
2. The step chain ultrasonic detection device is provided with the second sensor main body, the three ultrasonic sensor heads in the structure like the Chinese character pin on the second sensor main body can carry out comprehensive ultrasonic detection on the side surface of the step chain so as to obtain a three-dimensional image of the step chain, so that the state data of the step chain can be conveniently and comprehensively obtained, the condition that the left side and the right side are not equal is avoided, and the second fixing shell, the first fixing shell and the bearing frame are respectively fixed through threaded holes of the lug plates through bolts.
3. The sliding adjusting mechanism is arranged, the position of the second sensor main body on the second fixing shell is conveniently adjusted through the sliding of the sliding block in the sliding groove to ensure that the second sensor main body is positioned on the right side face of the step chain, then the fixing block is locked through the locking bolt, and meanwhile the positioning block and the rubber block can be tightly attached to the inner wall of the sliding groove under the action of the telescopic spring, so that the locking bolt is locked and the fixing block is matched with the fixing block and the sliding groove to be positioned and fixed.
4. The invention is provided with a movable connecting mechanism, the first rotating block and the second rotating block are respectively driven to rotate by the first movable shaft and the second movable shaft, so that the second fixed shell and the first fixed shell can rotate to form 90 degrees, the second fixed shell is conveniently fixed on the inner wall of the bearing frame, the first fixed shell is fixed at the bottom of the bearing frame, the second fixed shell and the first fixed shell can be ensured to be always in a 90-degree state under the influence of the force of the rotary spring by the arrangement of the rotary spring, and the second fixed shell is prevented from being twisted by vibration.
5. The vibration damping device is provided with the vibration damping support mechanism, the first honeycomb vibration damping plate and the second honeycomb vibration damping plate are both of honeycomb structures and can absorb vibration force, the V-shaped vibration damping plate between the first honeycomb vibration damping plate and the second honeycomb vibration damping plate can play a role in resisting pressure and reducing vibration by matching with the vibration damping springs, and the vibration force transmitted to the first fixing shell and the second fixing shell is reduced, so that the detection precision of the first sensor main body and the second sensor main body is not influenced.
Drawings
FIG. 1 is a schematic top view of an abnormal elongation sensor for a step chain according to the present invention;
FIG. 2 is an enlarged schematic view of the sensor for abnormal elongation of a step chain in FIG. 1;
FIG. 3 is an enlarged schematic view of the sensor for abnormal elongation of the step chain in FIG. 1;
FIG. 4 is a schematic perspective view of a slider of the sensor for abnormal elongation of a step chain according to the present invention;
FIG. 5 is a schematic view of a half-section structure of a damping support mechanism of the abnormal elongation sensor of the step chain according to the present invention;
FIG. 6 is an enlarged schematic view of the sensor for abnormal elongation of the step chain of FIG. 5;
fig. 7 is a schematic view of a sensor mounting structure of the abnormal elongation sensor of the step chain according to the present invention.
In the figure: 1. a first stationary case; 2. a first sensor body; 3. a displacement sensor head; 4. a movable connecting mechanism; 401. a first rotating block; 402. a first movable shaft; 403. a middle shaft; 404. a second movable shaft; 405. a second turning block; 406. a return spring; 5. a second stationary case; 6. a second sensor body; 7. an ultrasonic sensor head; 8. an ear plate; 9. a threaded hole; 10. a slide adjustment mechanism; 1001. a slider; 1002. a fixed block; 1003. locking the bolt; 1004. a tension spring; 1005. positioning blocks; 1006. a rubber block; 1007. a chute; 11. a shock-absorbing support mechanism; 1101. a first cellular cushioning plate; 1102. a second cellular cushioning plate; 1103. a V-shaped damping plate; 1104. fixing the connecting plate; 1105. a damping spring; 12. a bearing frame; 13. a step chain; 14. a rotating shaft.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1-7, the present invention provides a technical solution: a sensor for abnormal elongation of a step chain comprises a first fixed shell 1, a first sensor main body 2, a displacement sensor head 3, a movable connecting mechanism 4, a first rotating block 401, a first movable shaft 402, a middle shaft 403, a second movable shaft 404, a second rotating block 405, a rotary spring 406, a second fixed shell 5, a second sensor main body 6, an ultrasonic sensor head 7, an ear plate 8, a threaded hole 9, a sliding adjusting mechanism 10, a sliding block 1001, a fixed block 1002, a locking bolt 1003, a telescopic spring 1004, a positioning block 1005, a rubber block 1006, a sliding chute 1007, a shock absorption supporting mechanism 11, a first honeycomb shock absorption plate 1101, a second honeycomb shock absorption plate 1102, a V-shaped shock absorption plate 1103, a fixed connecting plate 1104, a shock absorption spring 1105, a bearing frame 12, a step chain 13 and a rotating shaft 14, wherein the first sensor main body 2 is arranged in the middle part above the first fixed shell 1, and the displacement sensor heads 3 are arranged on two sides above the first sensor main body 2, the displacement sensor heads 3 are arranged in two numbers, the displacement sensor heads 3 and the first sensor main body 2 are of an integrated structure, the two displacement sensor heads 3 can be respectively arranged on the lower sides of the two step chains 13, so that the lower sides of the middle parts of the step chains 13 can be detected through the displacement sensor heads 3, if the step chains 13 are abnormally extended, the middle parts of the step chains can droop directly to influence detection data, so that the abnormal extension of the step chains 13 can be detected through the displacement sensor heads 3, and the displacement sensor can monitor the extension trend change, the extension rate and the extension synchronicity of the two sides of the step chains;
the second fixed shell 5 is arranged at one side of the first fixed shell 1, a movable connecting mechanism 4 is connected between the second fixed shell 5 and the first fixed shell 1, the movable connecting mechanism 4 comprises a first rotating block 401, a first movable shaft 402, a middle shaft 403, a second movable shaft 404, a second rotating block 405 and a rotary spring 406, the left side of the middle shaft 403 is connected with the first rotating block 401 through the first movable shaft 402, the first rotating block 401 is fixedly connected with the first fixed shell 1, the right side of the middle shaft 403 is connected with the second rotating block 405 through the second movable shaft 404, the second rotating block 405 is fixedly connected with the second fixed shell 5, the rotary spring 406 is welded between the middle shafts 403, the middle shafts 403 are symmetrical about the transverse center lines of the first fixed shell 1 and the second fixed shell 5, and the middle shafts 403 are respectively movably connected between the first rotating block 401 and the second rotating block 405 through the first movable shaft 402 and the second movable shaft 404, the first rotating block 401 and the second rotating block 405 are respectively driven to rotate by the first movable shaft 402 and the second movable shaft 404, so that the second fixed shell 5 and the first fixed shell 1 can rotate to form 90 degrees, the second fixed shell 5 is conveniently fixed on the inner wall of the bearing frame 12, the first fixed shell 1 is fixed at the bottom of the bearing frame 12, and the second fixed shell 5 and the first fixed shell 1 are always in a 90-degree state by the arrangement of the rotary spring 406;
a second sensor main body 6 is arranged above the second fixing shell 5, an ultrasonic sensor head 7 is arranged above the second sensor main body 6, three ultrasonic sensor heads 7 are arranged, the ultrasonic sensor heads 7 are distributed in a structure in a shape like the Chinese character 'pin', the three ultrasonic sensor heads 7 in the structure in the shape like the Chinese character 'pin' can perform comprehensive ultrasonic detection on the side surface of the step chain 13 so as to obtain a three-dimensional image of the step chain 13, so that the state data of the step chain 13 can be more conveniently and comprehensively obtained, the situation that the left side and the right side are not equal is avoided, ear plates 8 are fixed on the front side and the rear side of the first fixing shell 1 and the second fixing shell 5, threaded holes 9 are formed in the ear plates 8, sliding adjusting mechanisms 10 are arranged on the two sides of the second sensor main body 6, and each sliding adjusting mechanism 10 comprises a sliding block 1001, a fixing block 1002 and a locking bolt 1003, The sensor comprises a telescopic spring 1004, a positioning block 1005, a rubber block 1006 and a sliding groove 1007, wherein sliders 1001 are fixed on two sides of a second sensor body 6, a fixing block 1002 is connected to the middle of the outer side of each slider 1001, a locking bolt 1003 penetrates through the middle of each slider 1001, the telescopic springs 1004 are fixed on the front side and the rear side of each fixing block 1002, the positioning block 1005 is fixed at the top end of each telescopic spring 1004, the rubber block 1006 is arranged on the front side of each positioning block 1005, the sliding groove 1007 is arranged on the inner side of the middle of a second fixing shell 5, the positioning block 1005 and the rubber block 1006 form an elastic structure with the fixing block 1002 through the telescopic springs 1004, the fixing block 1002 is fixedly connected with the sliders 1001, and the positioning block 1005 and the rubber block 1006 can be tightly attached to the inner wall of the sliding groove 1007 under the action of the telescopic springs 1004 so as to facilitate the locking bolt;
the shock absorption supporting mechanism 11 is fixed on the lower sides of the first fixing shell 1 and the second fixing shell 5, the shock absorption supporting mechanism 11 comprises a first honeycomb shock absorption plate 1101 and a second honeycomb shock absorption plate 1102, the upper side of the first honeycomb shock absorption plate 1101 is connected with the second honeycomb shock absorption plate 1102 through a V-shaped shock absorption plate 1103, a fixed connecting plate 1104 is connected between the V-shaped shock absorption plates 1103, shock absorption springs 1105 are arranged between the fixed connecting plate 1104 and the first honeycomb shock absorption plate 1101 or the second honeycomb shock absorption plate 1102, the first honeycomb shock absorption plate 1101, the second honeycomb shock absorption plate 1102 and the V-shaped shock absorption plate 1103 are of an integrated structure, the symmetric center of the V-shaped shock absorption plate 1103 is overlapped with the symmetric centers of the first honeycomb shock absorption plate 1101 and the second honeycomb shock absorption plate 1102, the first honeycomb shock absorption plate 1101 and the second honeycomb shock absorption plate 1102 are of a honeycomb structure and can absorb shock, the V-shaped shock absorption plates 1103 between the first honeycomb shock absorption plate 1101 and the second honeycomb shock absorption plate 1102 can absorb shock and the compression springs 1105, reducing a vibration force transmitted to the first and second stationary cases 1 and 5;
the bearing frame 12 is installed below the first fixing shell 1 through bolts, the step chain 13 is arranged inside the bearing frame 12 through the rotating shaft 14, the step chain 13 forms a rotating structure with the bearing frame 12 through the rotating shaft 14, the symmetric center of the step chain 13 is overlapped with the symmetric center of the displacement sensor head 3, and in the rotating process of the step chain 13 through the rotating shaft 14, one section of the step chain 13 which is abnormally extended can be vertically dropped on the lower side of the middle part due to gravity factors, so that the detection can be conveniently carried out through the two displacement sensor heads 3 which are symmetrically arranged.
In summary, in the sensor for abnormal extension of a step chain, when the sensor is installed, the total designed travel of the transition rail of the tensioning device at the lower part inside the bearing frame 12 is 200mm (i.e. a step distance), the maximum pre-tensioning is about 100mm, the extendable travel of the tensioning device is about 100mm, the corresponding travel of the displacement sensor is installed at a selected distance of 100mm, the sensor for extension of a step chain is installed at the tensioning device of a step chain, first and second movable shafts 402 and 404 can respectively drive the first and second rotating blocks 401 and 405 to rotate, so as to facilitate the rotation between the second fixed shell 5 and the first fixed shell 1, the two can form 90 degrees, the second fixed shell 5 can be conveniently fixed on the inner wall of the bearing frame 12, the first fixed shell 1 is fixed at the bottom of the bearing frame 12, the arrangement of the rotary spring 406 can ensure that the second fixed shell 5 and the first fixed shell 1 are always in a 90 degree state under the influence of the force of the rotary spring 406, the second fixing shell 5 is prevented from being vibrated and twisted, then the second fixing shell 5, the first fixing shell 1 and the bearing frame 12 are respectively fixed through a threaded hole 9 of a bolt penetrating through an ear plate 8, the position of the second sensor main body 6 on the second fixing shell 5 is adjusted through the sliding of a sliding block 1001 in a sliding groove 1007 to ensure that the second sensor main body is positioned on the front side surface of the step chain 13, then the fixing block 1002 is locked through a locking bolt 1003, and meanwhile, a positioning block 1005 and a rubber block 1006 can be tightly attached to the inner wall of the sliding groove 1007 under the action of an expansion spring 1004, so that the locking bolt 1003 is used for locking the fixing block 1002 to be matched with the positioning and fixing between the fixing block 1002 and the sliding groove;
in the using process, the first honeycomb cushioning plate 1101 and the second honeycomb cushioning plate 1102 are both of a honeycomb structure and can absorb vibration force, the V-shaped damping plate 1103 between the first honeycomb cushioning plate 1101 and the second honeycomb cushioning plate 1102 and the damping spring 1105 are matched to play roles of resisting pressure and reducing vibration, so as to reduce the vibration force transmitted to the first fixing shell 1 and the second fixing shell 5, then, in the process that the step chain 13 rotates through the rotating shaft 14, the section of the step chain 13 which is abnormally extended can vertically drop on the lower side of the middle part due to gravity factors, the two displacement sensor heads 3 can be respectively arranged at the lower side step chain tensioning positions of the two step chains 13, so that the lower side of the middle part of the step chain 13 can be detected through the displacement sensor heads 3 to measure the elongation of the step chain, and the displacement sensor can monitor the elongation trend change, the elongation rate and the synchronism of the elongation of the two sides of the step chain, if the step chain 13 is abnormally extended, the sagging of the middle part of the step chain can directly affect the detection data, so that the abnormal extension of the step chain 13 can be conveniently detected through the displacement sensor head 3, and meanwhile, the three ultrasonic sensor heads 7 with the structure of the shape like the Chinese character 'pin' on the side can carry out comprehensive ultrasonic detection on the side of the step chain 13, so that a three-dimensional image of the step chain 13 can be conveniently and comprehensively obtained, the condition data of the step chain 13 can be conveniently and comprehensively obtained, and the condition that the left side and the right side are not equal is avoided;
after the escalator is put into use, the position sensor continuously records the elongation of the step chain, and when the elongation of the step chain reaches 100 mm; a step and a step chain need to be removed, then the first sensor main body 2 and the second sensor main body 6 are reset, the step chain elongation monitoring of the next period is started, the device can give an alarm in time when an abnormal condition is detected, monitoring and early warning of the elongation of the step chain, the change rate and the elongation rate in a selected period, the left side and the right side are unequal, and the maintenance threshold value and the scrapping threshold value of the elongation of the step chain are prompted, so that the use process of the whole step chain abnormal elongation sensor is completed.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention and the equivalent alternatives or modifications according to the technical solution and the inventive concept of the present invention within the technical scope of the present invention.
Claims (9)
1. The utility model provides an unusual elongation sensor of step chain, includes first fixed shell (1), second fixed shell (5) and shock attenuation supporting mechanism (11), its characterized in that: a first sensor main body (2) is arranged in the middle of the upper portion of the first fixing shell (1), displacement sensor heads (3) are arranged on two sides of the upper portion of the first sensor main body (2), the second fixing shell (5) is arranged on one side of the first fixing shell (1), a movable connecting mechanism (4) is connected between the second fixing shell (5) and the first fixing shell (1), a second sensor main body (6) is installed above the second fixing shell (5), an ultrasonic sensor head (7) is arranged above the second sensor main body (6), lug plates (8) are fixed on the front side and the rear side of the first fixing shell (1) and the second fixing shell (5), threaded holes (9) are formed in the lug plates (8), sliding adjusting mechanisms (10) are arranged on two sides of the second sensor main body (6), and the damping supporting mechanism (11) is fixed on the lower sides of the first fixing shell (1) and the second fixing shell (5), shock attenuation supporting mechanism (11) are including first honeycomb bradyseism board (1101) and second honeycomb bradyseism board (1102), the top of first honeycomb bradyseism board (1101) is connected with second honeycomb bradyseism board (1102) through V-arrangement shock attenuation board (1103), be connected with fixed even board (1104) between V-arrangement shock attenuation board (1103), and install damping spring (1105) between fixed even board (1104) and first honeycomb bradyseism board (1101) or second honeycomb bradyseism board (1102), bearing frame (12) are installed through the bolt in the below of first set casing (1), and the inside of bearing frame (12) is provided with step chain (13) through pivot (14).
2. The abnormal elongation sensor of a step chain as claimed in claim 1, wherein: the displacement sensor head (3) is provided with two, and an integrated structure is arranged between the displacement sensor head (3) and the first sensor main body (2).
3. The abnormal elongation sensor of a step chain as claimed in claim 1, wherein: the movable connecting mechanism (4) comprises a first rotating block (401), a first movable shaft (402), a middle shaft (403), a second movable shaft (404), a second rotating block (405) and a rotary spring (406), the left side of the middle shaft (403) is connected with the first rotating block (401) through the first movable shaft (402), the first rotating block (401) is fixedly connected with the first fixed shell (1), the right side of the middle shaft (403) is connected with the second rotating block (405) through the second movable shaft (404), the second rotating block (405) is fixedly connected with the second fixed shell (5), and the rotary spring (406) is welded between the middle shaft (403).
4. The abnormal elongation sensor of a step chain as claimed in claim 3, wherein: the middle shafts (403) are symmetrical about the transverse center lines of the first fixed shell (1) and the second fixed shell (5), and the middle shafts (403) are movably connected with the first rotating block (401) and the second rotating block (405) through the first movable shaft (402) and the second movable shaft (404), respectively.
5. The abnormal elongation sensor of a step chain as claimed in claim 1, wherein: the number of the ultrasonic sensor heads (7) is three, and the ultrasonic sensor heads (7) are distributed in a structure like the Chinese character 'pin'.
6. The abnormal elongation sensor of a step chain as claimed in claim 1, wherein: slide adjusting mechanism (10) is including slider (1001), fixed block (1002), locking bolt (1003), expanding spring (1004), locating piece (1005), rubber block (1006) and spout (1007), the both sides of second sensor main part (6) all are fixed with slider (1001), and the outside middle part of slider (1001) is connected with fixed block (1002), locking bolt (1003) has been run through at the middle part of slider (1001), both sides all are fixed with expanding spring (1004) around fixed block (1002), and the top of expanding spring (1004) is fixed with locating piece (1005), the front side of locating piece (1005) is provided with rubber block (1006), the middle part inboard of second set casing (5) is provided with spout (1007).
7. The abnormal elongation sensor of a step chain as claimed in claim 6, wherein: the positioning block (1005) and the rubber block (1006) form an elastic structure with the fixing block (1002) through the telescopic spring (1004), and the fixing block (1002) is fixedly connected with the sliding block (1001).
8. The abnormal elongation sensor of a step chain as claimed in claim 1, wherein: the first honeycomb shock absorption plate (1101), the second honeycomb shock absorption plate (1102) and the V-shaped shock absorption plate (1103) are of an integrated structure, and the symmetry center of the V-shaped shock absorption plate (1103) is coincided with the symmetry centers of the first honeycomb shock absorption plate (1101) and the second honeycomb shock absorption plate (1102).
9. The abnormal elongation sensor of a step chain as claimed in claim 1, wherein: the step chain (13) and the bearing frame (12) form a rotating structure through the rotating shaft (14), and the symmetric center of the step chain (13) is superposed with the symmetric center of the displacement sensor head (3).
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| CN202110400697.1A CN113060626A (en) | 2021-04-14 | 2021-04-14 | Abnormal elongation sensor for step chain |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110400697.1A CN113060626A (en) | 2021-04-14 | 2021-04-14 | Abnormal elongation sensor for step chain |
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| CN113060626A true CN113060626A (en) | 2021-07-02 |
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