CN206395696U - The step chain of automatic escalator structure that pivot pin is released can be prevented - Google Patents

Abstract

A kind of step chain of automatic escalator structure that can prevent that pivot pin from releasing, belongs to escalator component technology field.Including step chain roller track and step chain, step chain roller track is formed with traction main wheel raceway, step chain includes a plurality of link units that mutual circulation is connected, each link units include being organized in pairs and parallel inner chain sheet, be organized in pairs and parallel outer chain sheet, the inner side for pivot pin that inner chain sheet is articulated and connected together with outer chain sheet and corresponding to inner chain sheet and steel wheel and traction main wheel on pivot pin be located at front and rear corresponding state, draw main wheel and traction main wheel raceway formation rolling pair, feature：Also include pivot pin and release testing agency, it is fixed with step chain roller track and leading flank or trailing flank simultaneously with step chain is corresponding.Embody excellent automatic online detection efficiency and Detection results and mitigate the working strength of inspection personnel and be able to ensure the safe operation of step while avoiding occurring accident.

Description

The step chain of automatic escalator structure that pivot pin is released can be prevented

Technical field

The utility model belongs to escalator component technology field, and in particular to it is a kind of can prevent that pivot pin from releasing automatic help Terraced Step chain structure.

Background technology

Because the function of step chain of automatic escalator is that the step for drawing escalator is moved again and again, thus industry Step chain custom is referred to as step conduction chain or walkway steps conduction chain, and step chain is in a state of use So that with paired shape appearance, the step of escalator is connected with step chain respectively by the two ends of its step axle, to this It may refer to saying for " the step axle sleeve of escalator step axle " that Chinese patent Authorization Notice No. CN202369243U recommends Bright book final stage of page 2.

Concrete structure on step chain of automatic escalator can be seen in disclosed Chinese patent literature, such as " sprocket wheel of escalator step or automatic sidewalk pedal ", the publication No. CN102537213A of CN2855986Y recommendations are provided " a kind of escalator and light-duty step chain and its application " and Authorization Notice No. CN201031923Y disclose " escalator or Dragging chain of moving sidewalk ", etc..

Step chain is driven by transmission steel wheel, and is driven steel wheel and is fixed in sprocket spindle, and solid in sprocket spindle Provided with motor drive sprocket, by motor by chain-driving motor drive sprocket, sprocket spindle is driven by motor drive sprocket, by Sprocket spindle drives transmission steel wheel, finally drives step chain by transmission steel wheel, connected step is driven by step chain.

Can step chain be all the time consider escalator operation quality one around aforementioned drive steel wheel easy motion Important factor, such as when sideslip occurs in step chain, then by its drive step enter fishback when, because step with Fishback can not accurately engage and on the one hand cause to wear and tear or even initiation accident, on the other hand can reduce step frame and broach The service life of plate, another further aspect easily makes transmission because of the friction that the stress of step chain increases and aggravates and is driven between steel wheel Both steel wheel and step chain are all to be damaged, and can send in step chain motion process chirp the noise chuckleed；And for example, ladder is worked as When the pivot pin of the structural system of level chain is released, then can equally produce all problems before being not limited to, or even it is also possible to trigger Even more serious serious accident.

Preventing the technical measures of step chain sideslip can be seen in disclosed Chinese patent literature, such as CN2815989Y （The chain wheel deviation preventing mechanism of escalator）、CN101590974B（A kind of stair comb plate and stair deviation prevention device）With CN103787187B（The step chain anti-deviation device of escalator）, etc..But the knot of step chain can be prevented by not being seen in The technical information that the pivot pin of structure system is released.

The inspection whether released at present to the pivot pin of step chain mainly when maintaining escalator periodic maintenance by Inspection personnel are by visually observing, and this inspection measure has following shortcoming：First, due to escalator can not run Real time status in journey is that the situation whether pivot pin occurs releasing is found in time, thus, with certain hysteresis quality, it is impossible to play The positive role prevented trouble before it happens；Second, because the length of escalator is longer, the length of step chain also corresponding longer, structure Quantity into the link units of step chain is just more, the same example of quantity of pivot pin, thus in time-based maintenance, checks workload phase To big, and spent time is long；Third, because the factors such as hand inspection and experience, the accountability of inspection personnel are related, thus inspection The quality looked into objectively varies with each individual.

For above-mentioned prior art, it is necessary to improved, it is that this applicant has made beneficial design, forms following The technical scheme that will be introduced.

The content of the invention

Task of the present utility model is that providing one kind contributes in the case where escalator is in running order with automatic detection The situation that releases that mode is possible to appearance to pivot pin incessantly predicts and uses and embody excellent automatic detection efficiency in time With Detection results and mitigate inspection personnel working strength and ensure step safe operation while avoiding the energy for occurring accident Prevent the step chain of automatic escalator structure that pivot pin is released.

What task of the present utility model was performed by, a kind of step chain of automatic escalator knot that can prevent that pivot pin from releasing Structure, including step chain roller track and the step chain with step chain roller track formation rolling pair, step chain roller track are formed with One traction main wheel raceway, step chain includes a plurality of link units that mutual circulation is connected, and each link units include paired Configuration and parallel inner chain sheet, be organized in pairs and same parallel be used for two adjacent link units Inner chain sheet connection outer chain sheet, for pivot pin that inner chain sheet is articulated and connected together with outer chain sheet and corresponding to interior chain The inner side of piece and steel wheel on the pivot pin and traction main wheel are rotatably arranged at front and rear corresponding state, traction main wheel with The traction main wheel raceway formation rolling pair, is characterised by that also including a pivot pin releases testing agency, the pivot pin releases detection Mechanism is fixed with the step chain roller track while corresponding with the leading flank or trailing flank of the step chain.

In a specific embodiment of the present utility model, described pivot pin release testing agency including roller guide box, Slide frame plate, upper holder, lower fixed frame, first axle pin position signalling collector and the second pivot pin position signal acquisition device, rolling The top that guide box corresponds to the traction main wheel is taken turns, the side of the roller guide box under is formed with a traction main wheel resigning chamber, The traction main wheel resigning chamber is from the left end insertion of roller guide box to right-hand member, and the rear end and the top of roller guide box for sliding frame plate are fixed And at least one is provided with the rear end for sliding frame plate and slides the movable guider of frame plate, the front end for sliding frame plate is downward Folding is opened up and is formed with a slip frame plate folded plate, and the slip frame plate folded plate corresponds to the front side of the step chain, upper holder Rear end is nested with to be moved forward and backward on guider in the slip frame plate, and the exhibition of rolling over downwards of the front end of upper holder is formed with one admittedly Determine frame folded plate, the upper holder folded plate corresponds to the front side of travelling carriage folded plate and longitudinally parallel with sliding frame plate folded plate, lower solid The rear end for determining frame is stretched over the lower section of step chain roller track and fixed with step chain roller track, and the front end of lower fixed frame is rolled over upwards Open up and be formed with a lower fixed frame folded plate, the lower fixed frame folded plate is connected with fixed frame folded plate, first axle pins position confidence Number collector and the second pivot pin position signal acquisition device are fixed on the slip frame plate folded plate with the corresponding state in left and right each other, And the first axle pin position signalling collector and the second pivot pin position signal acquisition device are corresponding with the front side of step chain, When described pivot pin loosening and play forwards, signal is gathered by described first axle pin position signalling collector, and works as axle Signal is gathered by the second described pivot pin position signal acquisition device when pin loosening and rearward play.

In another specific embodiment of the present utility model, a pivot pin set is arranged with described pivot pin, it is described Steel wheel and traction main wheel be rotationally nested with pivot pin set on.

In another specific embodiment of the present utility model, described traction main wheel by draw main axle forward it is dynamic Ground is nested with pivot pin set, and one is respectively fixed with pivot pin set and in the position corresponding to traction main axle brought forward side and rear side The spacing block plate of bearing.

In another specific embodiment of the present utility model, sliding groove is offered in the rear end of fixed frame, The movable guider of the slip frame plate for being arranged on the rear end of the slip frame plate probes into the sliding groove.

In an also specific embodiment of the present utility model, described slip frame plate moves forward and backward guider bag Screw rod, upper and lower packing ring, spring and lock nut are included, the rear end of the base portion of screw rod and the slip frame plate is fixed, and screw rod is upper Portion probes into the sliding groove, upper and lower packing ring and is nested with screw rod, and spring is located between upper and lower packing ring, lock nut It is that the position of the top of upper gasket is screwed on screw rod in correspondence.

Of the present utility model more and in a specific embodiment, fixed mount is offered on the lower fixed frame folded plate Folded plate connecting bolt adjustment tank, is equipped with fixed mount folded plate connecting bolt, in institute in fixed mount folded plate connecting bolt adjustment tank Link bolt hole is offered on the upper holder folded plate stated and in the position corresponding to fixed mount folded plate connecting bolt adjustment tank, Fixed mount folded plate connecting bolt screws in link bolt hole and by screwing the connection spiral shell in the end of fixed mount flanging connecting bolt Bolt limits nut and limited.

In an of the present utility model and then specific embodiment, described step chain roller track has rail cavity, The middle position of the width of the rail cavity bottom wall of the rail cavity and follow the length direction of rail cavity bottom wall and offer one Fixed plate lead-ingroove, is provided with a fixed plate in rail cavity, in the fixed plate and corresponding to fixed plate lead-ingroove Position is fixed with a lower fixed frame fixing screws, and the lower fixed frame fixing screws are stretched over the lower section of step chain roller track, described The rear end of lower fixed frame is placed on the bottom of lower fixed frame fixing screws and by screwing the lock in lower fixed frame fixing screws Tight nut locking.

Of the present utility model and more and in a specific embodiment, on the slip frame plate folded plate and in correspondence One first regulating tank is offered in the position of the first axle pin position signalling collector, and corresponding to second pivot pin position The position for putting signal picker offers one second regulating tank, and described first axle pin position signalling collector is with horizontal boom shape State and fixed in the position corresponding to the first regulating tank by a pair of first binding nuts with sliding frame plate folded plate, described the Two pivot pin position signal acquisition devices are same to be passed through a pair the with horizontal boom state and in the position corresponding to the second regulating tank Two binding nuts are fixed with sliding frame plate folded plate.

It is of the present utility model and and then a specific embodiment in, described first axle pin position signalling collector with And second pivot pin position signal acquisition device to be closely located to switch, tongue tube or hall sensing element.

The technical scheme that the utility model is provided has technical effect that：Stepping motion process is being driven by step chain In, when the pivot pin once the structural system of step chain occurs loosening simultaneously and then produces displacement, then testing agency is released by pivot pin Structural system first axle pin position signalling collector or the second pivot pin position signal acquisition device predict, embody excellent automatic Change on-line checking efficiency and Detection results and mitigate the working strength of inspection personnel and be able to ensure the safe operation of step Avoid occurring accident simultaneously.

Brief description of the drawings

Fig. 1 is example structure figure of the present utility model.

Fig. 2 is Fig. 1 sectional view and application examples schematic diagram.

Embodiment

In order to be more clearly understood from technical spirit of the present utility model and beneficial effect, applicant is below with reality The mode for applying example elaborates, but the description to embodiment is not the limitation to the utility model scheme, any foundation The made only formal rather than substantial equivalent transformation of the utility model design is regarded as of the present utility model Technical scheme category.

In the following description it is every be related to upper and lower, left and right, the directionality of front and rear or directionality concept be all On the basis of the location status shown in Fig. 1, thus the spy of technical scheme provided the utility model can not be understood as Do not limit.

Fig. 1 is referred to, step chain roller track 1 and the step chain with the formation rolling pair of step chain roller track 1 is shown 2, step chain roller track 1 is formed with a traction main wheel raceway 11, and step chain 2 includes a plurality of chain link lists that mutual circulation is connected Member 21, each link units 21 include being organized in pairs and parallel（It is front and rear parallel）Inner chain sheet 211, be organized in pairs And it is same parallel（It is front and rear parallel）For the exterior chain that connects the foregoing inner chain sheet 211 of two adjacent link units 21 Piece 212, for pivot pin 213 that inner chain sheet 211 is articulated and connected together with outer chain sheet 212 and in corresponding to inner chain sheet 211 Side and steel wheel 214 on foregoing pivot pin 213 and traction main wheel 215, traction master are rotatably arranged at front and rear corresponding state Wheel 215 forms rolling pair with foregoing traction main wheel raceway 11.Because the step chain 2 of this structure type belongs to prior art, It see, for example, Chinese patent Authorization Notice No. CN203682847U（The Step chain structure of escalator）, thus applicant is not Repeat again.

The technical essential of the technical scheme provided as the utility model：In the body of foregoing step chain of automatic escalator structure Also include a pivot pin in system and release testing agency 3, the pivot pin releases testing agency 3 and fixed simultaneously with foregoing step chain roller track 1 And the leading flank simultaneously with foregoing step chain 2 is corresponding, but can also be corresponding with the trailing flank of step chain 2.

Continue to see Fig. 1, foregoing pivot pin, which releases testing agency 3, includes roller guide box 31, slip frame plate 32, upper holder 33rd, lower fixed frame 34, first axle pin position signalling collector 35 and the second pivot pin position signal acquisition device 36,31 pairs of roller guide box A traction main wheel resigning chamber 311 should be formed with the top of foregoing traction main wheel 215, the side of the roller guide box 31 under, The traction main wheel resigning chamber 311 slides rear end and the roller guide box 31 of frame plate 32 from the left end insertion of roller guide box 31 to right-hand member Top fix and slide frame plate 32 rear end be provided with pair of sliding frame plate move forward and backward guider 321, travelling carriage The front end of plate 32, which is rolled over downwards, opens up and is formed with a slip frame plate folded plate 322, and the slip frame plate folded plate 322 corresponds to foregoing step chains The front side of bar 2, the rear end of upper holder 33 is nested with to be moved forward and backward on guider 321 in foregoing slip frame plate, upper holder 33 Front end roll over downwards exhibition and be formed with a upper holder folded plate 331, the upper holder folded plate 331 correspond to travelling carriage folded plate 322 Front side and parallel with sliding the longitudinal direction of frame plate folded plate 322, the rear end of lower fixed frame 34 is stretched over the lower section of step chain roller track 1 And fixed with step chain roller track 1, the front end of lower fixed frame 34 is rolled over upwards opens up and be formed with a lower fixed frame folded plate 341, should Lower fixed frame folded plate 341 is connected with foregoing upper holder folded plate 331, first axle pin position signalling collector 35 and the second pivot pin position Signal picker 36 is put to be fixed on foregoing slip frame plate folded plate 322 with the corresponding state in left and right each other, and first pivot pin The pivot pin position signal acquisition device 36 of position signal acquisition device 35 and second is corresponding with the front side of step chain 2, when foregoing When the loosening of pivot pin 213 and forwards play, signal is gathered by foregoing first axle pin position signalling collector 35, and works as pivot pin Signal is gathered by the second foregoing pivot pin position signal acquisition device 36 when 213 loosenings and rearward play.

According to professional general knowledge, due to first axle pin position signalling collector 35 and the second pivot pin position signal acquisition device 36 A measuring distance L is maintained between the front end surface of pivot pin 213 respectively（Fig. 2 shows）, thus once pivot pin 213 goes out because of loosening Now during displacement forward or backward, then because measuring distance L is changed, such as when 213 anterior displacement of pivot pin, because of pivot pin Measuring distance L between 213 front end surface and first axle pin position signalling collector 35 diminishes, then by the first axle pins position Put signal picker 35 and signal is fed back into electric controller, escalator is shut down and according to alarm is needed, to point out user couple Escalator is fixed a breakdown.Conversely, when there is the situation of the rearward displacement of pivot pin 213, the front end surface of pivot pin 213 and the second axle Sell the measuring distance L between position signalling collector 36 and become big, then be by the second pivot pin position signal acquisition device 36 that signal is anti- Feed electric controller, escalator is shut down and according to alarm is needed, to point out user to fix a breakdown escalator.

In addition, can also from Fig. 1 signal, when step chain 2 is on the traction main wheel raceway 11 of step chain roller track 1 When there is micro front and rear skew, then drive roller guide box 31 to make corresponding skew by traction main wheel 215, and then led by roller Case 31, which drives, slides the also respective offsets of frame plate 32, it is thus ensured that first, second foregoing pivot pin position signal acquisition device 35,36 with The distance between the end face of pivot pin 213 L keeps constant（Unless pivot pin 213 occurs in that loosening situation）.

Pivot pin set 2131 is arranged with foregoing pivot pin 213, foregoing steel wheel 214 and traction main wheel 215 is rotated Ground is nested with pivot pin set 2131.As preferred scheme, pivot pin set 2131 can be controlled in axle by pivot pin set screw 21312 On pin 213.Because the function of steel wheel can be found in foregoing CN203682847U, thus not reinflated explanation.

Foregoing traction main wheel 215 is rotationally nested with pivot pin set 2131 by drawing main wheel bearing 2151, in pivot pin The spacing block plate of a bearing is respectively fixed with set 2131 and in the position corresponding to the front side of traction main wheel bearing 2151 and rear side 21311。

Preferably, sliding groove 332 is offered in the rear end of foregoing upper holder 33, be arranged on after foregoing slip frame plate 32 The foregoing slip frame plate at end moves forward and backward guider 321 and probes into the sliding groove 332.

Continue to see Fig. 1, foregoing pair of sliding frame plate, which moves forward and backward guider 321, respectively includes screw rod 3211, upper and lower pad Circle 3212,3213, spring 3214 and lock nut 3215, the rear end of the base portion of screw rod 3211 and foregoing slip frame plate 32 are fixed, And the top of screw rod 3211 probes into foregoing sliding groove 332, that is to say, that the rear end of foregoing upper holder 33 passes through pair of sliding groove 332 are nested with screw rod 3211.Upper and lower packing ring 3212,3213 and 3214 is nested with screw rod 3211, and 3214, spring Between upper and lower packing ring 3212,3213, lock nut 3215 is that the position of the top of upper gasket 3212 is screwed in spiral shell in correspondence On bar 3211.

Refer to Fig. 2 and combine Fig. 1, fixed mount folded plate connecting bolt is offered on foregoing lower fixed frame folded plate 314 Adjustment tank 3411, is equipped with fixed mount folded plate connecting bolt 3412, preceding in fixed mount folded plate connecting bolt adjustment tank 3411 Connection is offered on the upper holder folded plate 331 stated and in the position corresponding to fixed mount folded plate connecting bolt adjustment tank 3411 Bolt hole 3311, fixed mount folded plate connecting bolt 3412 screws in link bolt hole 3311 and connected by screwing in fixed mount flanging The connecting bolt of the end of bolt 3412 limits nut 34121 and limited.

As shown in Fig. 1 and Fig. 2, foregoing step chain roller track 1 has rail cavity 12, at the rail cavity bottom of the rail cavity 12 The middle position of the width of wall and follow（Along）The length direction of rail cavity bottom wall offers a fixed plate lead-ingroove 121, a fixed plate 1211 is provided with rail cavity 12, and the fixed plate 1211 is alternatively referred to as rhombic plate or rhombus nut plate, at this It is that the position of fixed plate lead-ingroove 121 is fixed with a lower fixed frame fixing screws 12111 in fixed plate 1211 and in correspondence, The lower fixed frame fixing screws 12111 are stretched over the lower section of step chain roller track 1 by way of fixed plate lead-ingroove 121.It follows that Fixed plate 1211 is to be set by means of fixed plate lead-ingroove 121 into rail cavity 12.The rear end of foregoing lower fixed frame 34 is nested with In the bottom of lower fixed frame fixing screws 12111 and by screwing the locking nut in lower fixed frame fixing screws 12111 12112 lockings.

As shown in Figure 1, on foregoing slip frame plate folded plate 322 and corresponding to foregoing first axle pin position signal acquisition The position of device 35 offers one first regulating tank 3221, and in the position corresponding to foregoing 2nd 1 pivot pin position signal acquisition device 36 Put and offer one second regulating tank 3222, foregoing first axle pin position signalling collector 35 is with horizontal boom state and right It should be fixed in the position of the first regulating tank 3221 with sliding frame plate folded plate 322 by a pair of first binding nuts 351, foregoing the Two pivot pin position signal acquisition devices 36 pass through equally with horizontal boom state and in the position corresponding to the second regulating tank 3222 A pair of second binding nuts 361 are fixed with sliding frame plate folded plate 322.

In the present embodiment, foregoing first axle pin position signalling collector 35 and the second pivot pin position signal acquisition device 36 be to be closely located to switch, but tongue tube, hall sensing element or other equivalent parts can also be used.

A chain guide support 4 and a step 5 are also show in fig. 2, and step 5 passes through step pivot pin 51 and this practicality The rear end connection of new pivot pin 213（By taking location status shown in Fig. 1 as an example, if by taking location status shown in Fig. 2 as an example, So step pivot pin 51 is connected with the right-hand member of pivot pin 213）.

Because step chain 2 drives the motion of step 5 to belong to prior art, for example, equally it can be found in foregoing CN203682847U, thus the change in location work of applicant below only to first, second pivot pin position signal acquisition device 35,36 Brief description.When the connection between pivot pin 213 and step pivot pin 51 loosens, it will usually following two situations, one occur It is the anterior displacement of pivot pin 213, two be rearward displacement（By taking location status shown in Fig. 1 as an example）, yet with first, second pivot pin position The presence of signal picker 35,36 is put, thus when 213 anterior displacement of pivot pin, then by first axle pin position signalling collector 35 Predict, when 213 rearward displacement of pivot pin, then predicted by the second pivot pin position signal acquisition device 36.

In summary, the technical scheme that the utility model is provided compensate for the shortcoming in prior art, favorably accomplish Invention task, has faithfully cashed the technique effect referred in the superincumbent technique effect column of applicant.

Claims (10)

1. a kind of step chain of automatic escalator structure that can prevent that pivot pin from releasing, including step chain roller track (1) and and step The step chain (2) of chain guide (1) formation rolling pair, step chain roller track (1) is formed with a traction main wheel raceway (11), ladder Level chain (2) includes a plurality of link units (21) that mutual circulation is connected, and each link units (21) include what is be organized in pairs And parallel inner chain sheet (211), be organized in pairs and same parallel be used for two adjacent link units (21) the inner chain sheet (211) connection outer chain sheet (212), for by inner chain sheet (211) together with outer chain sheet (212) company of being hinged The pivot pin (213) that connects and it is rotatably arranged at institute in the inner side corresponding to inner chain sheet (211) and with front and rear corresponding state State the steel wheel (214) and traction main wheel (215) on pivot pin (213), traction main wheel (215) and described traction main wheel raceway (11) shape Into rolling pair, it is characterised in that also include a pivot pin and release testing agency (3), the pivot pin release testing agency (3) with it is described Step chain roller track (1) is fixed while corresponding with the leading flank or trailing flank of the step chain (2).

2. the step chain of automatic escalator structure according to claim 1 that can prevent that pivot pin from releasing, it is characterised in that described Pivot pin release testing agency (3) including roller guide box (31), slide frame plate (32), upper holder (33), lower fixed frame (34), First axle pin position signalling collector (35) and the second pivot pin position signal acquisition device (36), roller guide box (31) correspond to described The top of main wheel (215) is drawn, the side of the roller guide box (31) under is formed with a traction main wheel resigning chamber (311), should Main wheel resigning chamber (311) is drawn from the left end insertion of roller guide box (31) to right-hand member, the rear end for sliding frame plate (32) is led with roller The top of case (31), which is fixed and at least one is provided with the rear end for sliding frame plate (32), slides the movable guiding dress of frame plate Put (321), slide the front end exhibition of rolling over downwards of frame plate (32) and be formed with a slip frame plate folded plate (322), the slip frame plate folded plate (322) front side of the step chain (2) is corresponded to, the rear end of upper holder (33) is nested with to be moved forward and backward in the slip frame plate On guider (321), upper holder (33) and the front end exhibition of rolling over downwards be formed with a upper holder folded plate (331), it is solid on this Determine frame folded plate (331) corresponding to the front side of travelling carriage folded plate (322) and parallel with sliding frame plate folded plate (322) longitudinal direction, it is lower solid The rear end for determining frame (34) is stretched over the lower section of step chain roller track (1) and, lower fixed frame fixed with step chain roller track (1) (34) front end roll over upwards exhibition and be formed with a lower fixed frame folded plate (341), the lower fixed frame folded plate (341) with it is fixed Frame folded plate (331) is connected, and first axle pin position signalling collector (35) and the second pivot pin position signal acquisition device (36) are with each other The corresponding state in left and right is fixed on the slip frame plate folded plate (322), and the first axle pin position signalling collector (35) And second pivot pin position signal acquisition device (36) it is corresponding with the front side of step chain (2), when described pivot pin (213) loosens And forwards play when, signal is gathered by described first axle pin position signalling collector (35), and when pivot pin (213) loosens simultaneously Signal is rearward gathered by the second described pivot pin position signal acquisition device (36) during play.

3. the step chain of automatic escalator structure according to claim 2 that can prevent that pivot pin from releasing, it is characterised in that in institute A pivot pin set (2131) is arranged with the pivot pin (213) stated, described steel wheel (214) and traction main wheel (215) rotationally covers Put on pivot pin set (2131).

4. the step chain of automatic escalator structure according to claim 3 that can prevent that pivot pin from releasing, it is characterised in that described Traction main wheel (215) be rotationally nested with pivot pin set (2131) by drawing main wheel bearing (2151), in pivot pin set (2131) position on and with rear side on front side of corresponding to traction main wheel bearing (2151) is respectively fixed with the spacing block plate of a bearing (21311)。

5. the step chain of automatic escalator structure according to claim 2 that can prevent that pivot pin from releasing, it is characterised in that in institute The rear end for stating upper holder (33) offers sliding groove (332), is arranged on the slip of the rear end of the slip frame plate (32) Frame plate moves forward and backward guider (321) and probes into the sliding groove (332).

6. the step chain of automatic escalator structure according to claim 5 that can prevent that pivot pin from releasing, it is characterised in that described Slip frame plate move forward and backward guider (321) include screw rod (3211), upper and lower packing ring (3212,3213), spring (3214) With lock nut (3215), the base portion of screw rod (3211) and the rear end of the slip frame plate (32) are fixed, and screw rod (3211) Top probes into the sliding groove (332), and upper and lower packing ring (3212,3213) and (3214) are nested with screw rod (3211), and Spring (3214) is located between upper and lower packing ring (3212,3213), and lock nut (3215) is upper gasket (3212) in correspondence The position of top is screwed on screw rod (3211).

7. the step chain of automatic escalator structure according to claim 2 that can prevent that pivot pin from releasing, it is characterised in that in institute State and fixed mount folded plate connecting bolt adjustment tank (3411) is offered on lower fixed frame folded plate (314), spiral shell is connected in fixed mount folded plate Fixed mount folded plate connecting bolt (3412) is equipped with bolt adjustment tank (3411), on described upper holder folded plate (331) simultaneously And link bolt hole (3311), fixed mount folding are offered in the position corresponding to fixed mount folded plate connecting bolt adjustment tank (3411) Plate connecting bolt (3412) screws in link bolt hole (3311) and by screwing at the end of fixed mount flanging connecting bolt (3412) The connecting bolt at end limits nut (34121) and limited.

8. the step chain of automatic escalator structure according to claim 2 that can prevent that pivot pin from releasing, it is characterised in that described Step chain roller track (1) have rail cavity (12), in the lean-with of the width of the rail cavity bottom wall of the rail cavity (12) Put and follow the length direction of rail cavity bottom wall and offer a fixed plate lead-ingroove (121), one is provided with rail cavity (12) and is consolidated Fixed board (1211), is fixed with solid in the fixed plate (1211) and in the position corresponding to fixed plate lead-ingroove (121) Determine frame fixing screws (12111), the lower fixed frame fixing screws (12111) are stretched over the lower section of step chain roller track (1), described The rear end of lower fixed frame (34) is placed on the bottom of lower fixed frame fixing screws (12111) and fixed by screwing in lower fixed frame Locking nut (12112) locking on screw (12111).

9. the step chain of automatic escalator structure according to claim 2 that can prevent that pivot pin from releasing, it is characterised in that in institute State on slip frame plate folded plate (322) and offer one in the position corresponding to the first axle pin position signalling collector (35) First regulating tank (3221), and one second tune is offered in the position corresponding to the second pivot pin position signal acquisition device (36) Groove (3222) is saved, described first axle pin position signalling collector (35) is with horizontal boom state and corresponding to the first regulation The position of groove (3221) is fixed by a pair of first binding nuts (351) with sliding frame plate folded plate (322), the second described pivot pin Position signal acquisition device (36) equally with horizontal boom state and passes through one in the position corresponding to the second regulating tank (3222) It is fixed with sliding frame plate folded plate (322) to the second binding nut (361).

10. the step chain of automatic escalator structure that pivot pin is released of can prevent according to claim 2 or 9, it is characterised in that Described first axle pin position signalling collector (35) and the second pivot pin position signal acquisition device (36) for be closely located to switch, Tongue tube or hall sensing element.