CN210286418U - Driving device suitable for escalator lower end handrail belt and escalator - Google Patents
Driving device suitable for escalator lower end handrail belt and escalator Download PDFInfo
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- CN210286418U CN210286418U CN201920776935.7U CN201920776935U CN210286418U CN 210286418 U CN210286418 U CN 210286418U CN 201920776935 U CN201920776935 U CN 201920776935U CN 210286418 U CN210286418 U CN 210286418U
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Abstract
The utility model discloses a drive arrangement and automatic escalator suitable for automatic escalator lower extreme handrail area, wherein drive arrangement include transition sprocket, set up little sprocket on step sprocket, set up the driving sprocket on handrail tip gyrostat, transition sprocket, little sprocket, driving sprocket lie in same one side of automatic escalator, be provided with first driving chain between transition sprocket and the driving sprocket, be provided with the second driving chain between transition sprocket and the little sprocket. The utility model discloses a drive arrangement suitable for automatic escalator lower extreme handrail area, its structural design is reasonable, and occupation space is little, does not need extra power supply, provides power by pivoted step sprocket, uses safe and reliable, and the handrail area synchronism is good, and the fault rate is low.
Description
Technical Field
The patent relates to the technical field of escalators, in particular to a driving device suitable for a handrail belt at the lower end of an escalator and the escalator comprising the driving device.
Background
Along with the development of economy, a higher escalator is needed, and along with the increase of the lifting height of the escalator, the force for driving the handrail belt of the escalator needs to be increased, the mainstream handrail belt drives in the market at present are divided into three types, one type is common friction wheel drive, one type is multi-rolling wheel linear drive, and the other type is upper and lower end handrail turning end drive and also end drive. The linear type driving of the rolling wheels with more end parts has low cost and simple structure, is convenient to maintain, has larger driving force compared with the friction wheel driving, and can meet the requirement of the escalator with large lifting height.
In the prior art, two implementation modes of end part driving are provided, namely, the end part driving is realized by an upper end handrail turning end, also called as upper end part driving, and the end part driving device is suitable for medium and small lifting heights; and secondly, along with the continuous increase of the lifting height, the upper end drive gradually cannot meet the requirement of the driving force of the handrail, and the drive is increased at the steering end of the handrail at the lower end on the premise of driving the upper end part. In the second way, the conventional solution is to use a small motor to directly drive the lower steering wheel through a chain to achieve the purpose of increasing the driving force of the handrail belt. However, generally, due to the limitation of space, motors are small, and the motor is easy to overload due to the large load generated by the handrail belt, so that the failure rate is high.
Disclosure of Invention
In view of this, in order to solve the problem of the prior art, the utility model provides a compact structure, use safe and reliable's drive arrangement who is applicable to automatic escalator lower extreme handrail area.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a drive arrangement suitable for automatic escalator lower extreme handrail area, includes transition sprocket, sets up little sprocket on step sprocket, sets up the driving sprocket on handrail tip gyrostat, transition sprocket, little sprocket, driving sprocket lie in same one side of automatic escalator, be provided with first driving chain between transition sprocket and the driving sprocket, be provided with the second driving chain between transition sprocket and the little sprocket. Through setting up transition sprocket, little sprocket, driving sprocket and first driving chain and second driving chain, the step sprocket of automatic escalator rotates when the step of automatic escalator moves, and little sprocket rotates in step, drives the transition sprocket through the second driving chain and rotates, and the transition sprocket drives driving sprocket through first driving chain and rotates, because driving sprocket rotates with the tip gyrostat of handrail in step, finally drives the handrail area and moves. Through foretell structure setting, not only structural compacter, occupation space is little, and provides power through pivoted step sprocket, does not need extra power supply, uses safe and reliable more, and the handrail area synchronism is good, and the fault rate is low.
Preferably, a first gear corresponding to the driving sprocket is arranged on the transition sprocket, and the first driving chain is arranged between the first gear and the driving sprocket; the transition chain wheel is provided with a second gear corresponding to the small chain wheel, and the second driving chain is arranged between the second gear and the small chain wheel. Two rows of gears are arranged on the transition chain wheel, so that the small chain wheel can drive the driving chain wheel to rotate through the transition chain wheel. And the second gear is closer to the steps of the escalator than the first gear, i.e. the second gear is on the inside and the first gear is on the outside.
More preferably, the driving device further comprises an automatic chain tensioning device including a tension sprocket for tensioning the second driving chain and a mounting mechanism for mounting the tension sprocket on the truss. Because the position of the step chain wheel is not fixed when the escalator runs, namely the relative position between the small chain wheel and the transition chain wheel is not fixed, the second driving chain can be loosened, and the problems of tooth disengagement, tooth jumping and the like of the chain and the chain wheel caused by the forward and backward movement of the tensioning trolley can be prevented by arranging the automatic chain tensioning device, so that the escalator runs more safely and reliably.
Further preferably, the installation mechanism comprises a tension sprocket bracket installed on the truss and an installation plate installed on the tension sprocket bracket, the tension sprocket is installed on the installation plate, and the tension sprocket bracket comprises a horizontal plate fixed on the truss and a vertical plate vertically arranged with the horizontal plate. The mounting panel can slide from top to bottom along vertical board and then play the effect of tensioning to the second driving chain in order to adjust tensioning sprocket's position.
Preferably again, installation mechanism is still including being used for driving the mounting panel is followed vertical board adjustment mechanism who reciprocates, adjustment mechanism is including setting up fixed plate on the mounting panel, fixing adjust the pole on the fixed plate, be provided with the elastic component on adjusting the pole, the upper end of elastic component acts on the lower surface of horizontal plate, the lower extreme of elastic component acts on fixing the elastic component base on adjusting the pole, the elastic component base passes through the nut to be fixed on adjusting the pole, still offers the hole that is used for supplying to adjust the pole top and runs through on the horizontal plate. The mounting plate can be driven to move up and down through the elastic piece and the adjusting rod so as to drive the tensioning chain wheel to move up and down. The position of the elastic part base can be changed by adjusting the position of the nut, so that the elastic force of the elastic part is adjusted, and the tension force is changed.
Preferably, the fixing plate is provided with a threaded hole, the adjusting rod is a threaded rod, and the threaded rod is fixed on the fixing plate through the threaded hole. It is more convenient to adjust the pole and use the threaded rod installation, and the regulation of nut is also more convenient.
Preferably, the mounting plate is fixed to the vertical plate through a fastener, and a waist circular hole extending in the vertical direction is formed in the mounting plate corresponding to the fastener. The setting of waist round hole can be spacing reciprocating of mounting panel.
Preferably, the mounting plate is further provided with an adjusting hole for conveniently adjusting the position of the elastic element base, namely, the position of the elastic element base can be adjusted by conveniently adjusting the nut through the adjusting hole.
Preferably, the tension sprocket is disposed on a side of the second drive chain adjacent to the drive sprocket.
More preferably, the small sprocket, the second driving chain, the tension sprocket and the second gear are located on the same vertical plane; the driving chain wheel, the first driving chain and the first gear are positioned on the same vertical surface.
The utility model also provides an included as above be applicable to the escalator lower extreme handrail drive arrangement's of area escalator automatic escalator.
Compared with the prior art, the utility model discloses an useful part lies in: the utility model discloses a drive arrangement suitable for automatic escalator lower extreme handrail area, its structural design is reasonable, and occupation space is little, does not need extra power supply, provides power by pivoted step sprocket, uses safe and reliable, and the handrail area synchronism is good, and the fault rate is low.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a perspective view of the driving device adapted to the handrail belt at the lower end of the escalator in the preferred embodiment of the present invention after being installed;
fig. 2 is a partial perspective view of a drive device suitable for a handrail at the lower end of an escalator in the preferred embodiment of the present invention;
FIG. 3 is a perspective view of the end turret and drive sprocket assembly of the preferred embodiment of the present invention;
FIG. 4 is a perspective view of the preferred embodiment of the present invention after the step sprocket and the small sprocket are mounted;
FIG. 5 is a perspective view of the transition sprocket mounted to the truss in the preferred embodiment of the present invention;
FIG. 6 is a perspective view of a mounting mechanism in accordance with a preferred embodiment of the present invention;
FIG. 7 is a perspective view of a mounting plate in a preferred embodiment of the present invention;
wherein: a handrail belt-1, a lower handrail driving device-2, a truss-3, a step-4, a step chain-5, a tensioning trolley-6, a support angle steel-7, a chain automatic tensioning device-8, a driving chain wheel-9, a first driving chain-10, a transition chain wheel-11, a second driving chain-12, a tensioning chain wheel-13, a small chain wheel-14, a step chain wheel-15, an end turning wheel-16, a first bolt component-17, a second bolt component-18, a third bolt component-19, a nut-20, a tensioning chain wheel bracket-21, a horizontal plate-211, a vertical plate-212, a fastener-22, an adjusting rod-23, an elastic piece-24, an elastic piece base-25 and a mounting plate-26, fixing plate-261, tension sprocket mounting hole-262, oval hole-263, adjusting hole-264, threaded hole-265, first gear-271 and second gear-272.
Detailed Description
In order to make the technical solution of the present invention better understood, the technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.
Referring to fig. 1 to 7, the driving device 2 suitable for a handrail belt at a lower end of an escalator of the present embodiment includes a transition sprocket 11, a small sprocket 14 fixed on a step sprocket 15 by a third bolt assembly 19, and a driving sprocket 9 fixed on a handrail end turning wheel 16 by a second bolt assembly 18, wherein the transition sprocket 11, the small sprocket 14, and the driving sprocket 9 are located at the same side of the escalator, a first driving chain 10 is disposed between the transition sprocket 11 and the driving sprocket 9, a second driving chain 12 is disposed between the transition sprocket 11 and the small sprocket 14, and a chain automatic tensioning device 8 is further disposed on the second driving chain 12. The transition sprocket 11 is mounted on the truss 3 by the support angle 7 and the first bolt assembly 17.
The transition chain wheel 11 in the embodiment is provided with a first gear 271 corresponding to the driving chain wheel 9, and a first driving chain 10 is arranged between the first gear 271 and the driving chain wheel 9; the transition chain wheel 11 is provided with a second gear 272 corresponding to the small chain wheel 14, the second driving chain 12 is arranged between the second gear 272 and the small chain wheel 14, the second driving chain 12, the tension chain wheel 13 and the second gear 272 are positioned on the same vertical plane; the drive sprocket 9, the first drive chain 10 and the first gear 271 are located on the same vertical plane. Two rows of gears are arranged on the transition chain wheel 11, so that the small chain wheel 14 can drive the driving chain wheel 9 to rotate through the transition chain wheel 11. And the second gearwheel 272 is closer to the steps of the staircase than the first gearwheel 271, i.e. the second gearwheel 272 is on the inside and the first gearwheel 271 is on the outside.
Through setting up transition sprocket 11, little sprocket 14, driving sprocket 9 and first driving chain 10 and second driving chain 12, when the step 4 of automatic escalator was in the motion, step sprocket 15 of automatic escalator rotated, and little sprocket 14 synchronous rotation drives transition sprocket 11 through second driving chain 12 and rotates, and transition sprocket 11 drives driving sprocket 9 through first driving chain 10 and rotates, because driving sprocket 9 rotates with the tip gyrostat 16 of handrail in step, finally drives handrail area 1 and moves. Through foretell structure setting, not only structural compacter, occupation space is little, and provides power through pivoted step sprocket 15, does not need extra power supply, uses safe and reliable more, and handrail 1 synchronism is good, and the fault rate is low.
The automatic chain tensioner 8 in this embodiment includes a tension sprocket 13 for tensioning the second drive chain 12, and a mounting mechanism for mounting the tension sprocket 13 on the truss 3, and the tension sprocket 13 is provided on the side of the second drive chain 12 close to the drive sprocket 9. Because the position of the step chain wheel 15 is not fixed when the escalator operates, namely the relative position between the small chain wheel 14 and the transition chain wheel 11 is not fixed, the second driving chain 12 may be loosened, and the problems of chain and chain wheel tooth disengagement, tooth skipping and the like caused by the back and forth movement of the tensioning trolley 6 can be prevented by arranging the automatic chain tensioning device 8, so that the escalator operates more safely and reliably.
As shown in fig. 6 to 7, the mounting mechanism includes a tension sprocket bracket 21 mounted on the truss 3, a mounting plate 26 mounted on the tension sprocket bracket 21, and an adjusting mechanism for driving the mounting plate 26 to move up and down along a vertical plate 212, a tension sprocket mounting hole 262 is formed in the mounting plate 26 for mounting the tension sprocket 13, and the tension sprocket bracket 21 includes a horizontal plate 211 fixed on the truss 3 and a vertical plate 212 arranged perpendicular to the horizontal plate 211.
The adjusting mechanism comprises a fixing plate 261 arranged on the mounting plate 26 and an adjusting rod 23 fixed on the fixing plate 261, an elastic piece 24 is arranged on the adjusting rod 23, the upper end of the elastic piece 24 acts on the lower surface of the horizontal plate 211, the lower end of the elastic piece 24 acts on an elastic piece base 25 fixed on the adjusting rod 23, the elastic piece base 25 is fixed on the adjusting rod 23 through a nut 20, and a hole for penetrating through the top of the adjusting rod 23 is further formed in the horizontal plate 211. The elastic member 24 and the adjusting rod 23 can drive the mounting plate 26 to move up and down, so as to drive the tension sprocket 13 to move up and down, thereby tensioning the second driving chain 12. The position of the elastic member base 25 can be changed by adjusting the position of the nut 20, so that the elastic force of the elastic member 24 can be adjusted, and the tension can be changed.
In this embodiment, the fixing plate 261 is provided with a threaded hole 265, the adjusting rod 23 is a threaded rod, the threaded rod is fixed on the fixing plate 261 through the threaded hole 265, the adjusting rod 23 is more convenient to install by using the threaded rod, and the adjusting of the nut 20 is more convenient. The mounting plate 26 is fixed on the vertical plate 212 by a fastener 22, and a waist-round hole 263 extending in the vertical direction is opened on the mounting plate 26 corresponding to the fastener 22. The waist circular hole 263 is provided to limit the vertical movement of the mounting plate 26. The mounting plate 26 is further provided with an adjusting hole 264 for adjusting the position of the elastic member base 25, i.e. the nut 20 can be conveniently adjusted through the adjusting hole 264 to further adjust the position of the elastic member base 25. The fastening member 22 connecting the mounting plate 26 and the vertical plate 212 in this embodiment is a half-thread bolt assembly, the elastic member 24 is a compression spring, and the elastic member base 25 is a spring seat.
The working process of the driving device suitable for the handrail belt at the lower end of the escalator of the embodiment is briefly described as follows:
referring to fig. 1-7, a step chain wheel 15 is fixed on a tension trolley 6, when the escalator is running, a step 4 rotates, the step chain wheel 15 rotates under the driving of a step chain 5, a small chain wheel 14 fixed on the step chain wheel 15 through a third bolt assembly 19 rotates synchronously, the small chain wheel 14 drives a transition chain wheel 11 to rotate through a second driving chain 12, the transition chain wheel 11 is fixed on a truss 3 through a support angle steel 7 and a first bolt assembly 17, the transition chain wheel 11 is provided with two rows of teeth, namely a first gear 271 and a second gear 272, which are respectively meshed with a first driving chain 10 and a second driving chain 12, the transition chain wheel 11 drives a driving chain wheel 9 to rotate through the first driving chain 10, and the driving chain wheel 9 is fixed on an end rotary wheel 16 through a second bolt assembly 18, so as to drive the end rotary wheel 16 to rotate to drag the movement of the handrail belt 1.
Since the position of the escalator tensioning trolley 6 is not fixed under different lifting heights, the positions of the step chain wheel 15 and the small chain wheel 14 are not fixed, in order to ensure that the second driving chain 12 can be correctly meshed with the small chain wheel 14 and the transition chain wheel 11, the length of the second driving chain 12 needs to be long enough, meanwhile, the second driving chain 12 is provided with the automatic chain tensioning device 8, the automatic chain tensioning device 8 is fixed on the truss 3, the automatic chain tensioning device 8 comprises a tensioning chain wheel 13, the tensioning chain wheel 13 is fixed on a tensioning chain wheel mounting hole 262 of the mounting plate 26, the mounting plate 26 is provided with an up-and-down adjusting waist round hole 263 and an adjusting hole 264 for an adjusting nut 20, the mounting plate 26 is connected with the tensioning chain wheel bracket 21 through a half-thread bolt assembly, and after the half-thread bolt assembly is tightened, the mounting plate 26 can be ensured to freely slide on the vertical plate 212 of the, a half-thread threaded rod 23 is arranged between the tension sprocket 13 and the tension sprocket support 21, the threaded end of the half-thread threaded rod 23 is fixed in a threaded hole 265 of a fixing plate 261 on the mounting plate 26, and a non-threaded end penetrates through a round hole of a horizontal plate 211 at the upper end of the tension support 21 and plays a role in guiding the mounting plate 26 in the up-and-down moving process; the half-thread threaded rod 23 is provided with a spring seat 25 and a compression spring 24 with larger elasticity and compression amount, a nut 20 is arranged between the spring seat and the half-thread threaded rod, the compression spring 24 can adjust the compression amount and the elasticity by rotating the nut 20, and the second driving chain 12 is always in a tensioning state in the front-back movement process of the tensioning trolley 6 and is correctly meshed with the small chain wheel 14 and the transition chain wheel 11, so that the problems of tooth disengagement, tooth jumping and the like of the chain and the chain wheel are avoided.
The present embodiment also provides an escalator comprising at its lower end a drive device as described above, which is suitable for a lower handrail belt.
The utility model discloses a drive arrangement suitable for automatic staircase lower extreme handrail area, its structural design is reasonable, and occupation space is little, does not need extra power supply, provides power by pivoted step sprocket, uses safe and reliable, and handrail area synchronism is good, and the fault rate is low. Through setting up the automatic overspeed device tensioner of chain, can prevent to cause chain and sprocket to take off the tooth, jump the tooth scheduling problem because the tensioning dolly back-and-forth movement for the staircase operation is safe and reliable more.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, so as not to limit the protection scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (10)
1. The utility model provides a drive arrangement suitable for automatic escalator lower extreme handrail area, its characterized in that, includes transition sprocket, sets up little sprocket on the step sprocket, sets up the driving sprocket on handrail tip gyrostat, transition sprocket, little sprocket, driving sprocket lie in automatic escalator's same one side, be provided with first driving chain between transition sprocket and the driving sprocket, be provided with the second driving chain between transition sprocket and the little sprocket.
2. The driving device for the lower handrail of the escalator as claimed in claim 1, wherein the transition sprocket is provided with a first gear corresponding to the driving sprocket, and the first driving chain is disposed between the first gear and the driving sprocket; the transition chain wheel is provided with a second gear corresponding to the small chain wheel, and the second driving chain is arranged between the second gear and the small chain wheel.
3. The driving device for an escalator lower end handrail according to claim 2, further comprising a chain automatic tensioning device including a tension sprocket for tensioning the second driving chain and a mounting mechanism for mounting the tension sprocket on a truss.
4. The driving device for an escalator lower end handrail according to claim 3, wherein the mounting mechanism comprises a tension sprocket bracket mounted on the truss and a mounting plate mounted on the tension sprocket bracket, the tension sprocket being mounted on the mounting plate, the tension sprocket bracket comprising a horizontal plate fixed on the truss and a vertical plate disposed perpendicular to the horizontal plate.
5. The driving device for the lower handrail of the escalator as claimed in claim 4, wherein said mounting mechanism further comprises an adjusting mechanism for driving said mounting plate to move up and down along said vertical plate, said adjusting mechanism comprises a fixing plate disposed on said mounting plate and an adjusting rod fixed on said fixing plate, said adjusting rod is provided with an elastic member, the upper end of said elastic member acts on the lower surface of said horizontal plate, and the lower end of said elastic member acts on an elastic member base fixed on said adjusting rod.
6. The driving device for the lower end handrail of the escalator as claimed in claim 5, wherein the fixing plate is provided with a threaded hole, the adjusting rod is a threaded rod, and the threaded rod is fixed on the fixing plate through the threaded hole.
7. The driving device for the lower end handrail of the escalator as claimed in claim 4, wherein the mounting plate is fixed on the vertical plate by a fastener, and the mounting plate is provided with a waist circular hole extending in the vertical direction corresponding to the fastener.
8. A drive arrangement for an escalator lower end handrail according to claim 3, wherein the tension sprocket is provided on the side of the second drive chain adjacent to the drive sprocket.
9. The driving device for an escalator lower end handrail according to claim 8, wherein the small chain wheel, the second driving chain, the tension chain wheel and the second gear are located on the same vertical plane; the driving chain wheel, the first driving chain and the first gear are positioned on the same vertical surface.
10. An escalator, characterized in that it comprises a drive device for a handrail at the lower end of the escalator as claimed in any one of claims 1-9.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920776935.7U CN210286418U (en) | 2019-05-27 | 2019-05-27 | Driving device suitable for escalator lower end handrail belt and escalator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920776935.7U CN210286418U (en) | 2019-05-27 | 2019-05-27 | Driving device suitable for escalator lower end handrail belt and escalator |
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| CN210286418U true CN210286418U (en) | 2020-04-10 |
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| CN201920776935.7U Active CN210286418U (en) | 2019-05-27 | 2019-05-27 | Driving device suitable for escalator lower end handrail belt and escalator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110217681A (en) * | 2019-05-27 | 2019-09-10 | 苏州江南嘉捷电梯有限公司 | Driving device and escalator suitable for escalator lower end handrail |
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2019
- 2019-05-27 CN CN201920776935.7U patent/CN210286418U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110217681A (en) * | 2019-05-27 | 2019-09-10 | 苏州江南嘉捷电梯有限公司 | Driving device and escalator suitable for escalator lower end handrail |
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