CN215160163U - Driving device and automatic traveling system - Google Patents
Driving device and automatic traveling system Download PDFInfo
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- CN215160163U CN215160163U CN202120403792.2U CN202120403792U CN215160163U CN 215160163 U CN215160163 U CN 215160163U CN 202120403792 U CN202120403792 U CN 202120403792U CN 215160163 U CN215160163 U CN 215160163U
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Abstract
The utility model relates to an staircase technical field especially relates to drive arrangement and automatic traveling system. A driving device is used for driving an automatic walking system to run and comprises a driving main shaft, a driving host and a detection mechanism, wherein the detection mechanism is connected with the driving host, and the driving main shaft is driven by the driving host; the detection mechanism comprises a photoelectric sensing assembly and a braking flywheel, the braking flywheel is driven to rotate by a driving host, a sensed part is arranged on the braking flywheel, the photoelectric sensing assembly is close to the sensed part, and along with the rotation of the braking flywheel, the photoelectric sensing assembly can sense the sensed part to detect the rotating direction and the rotating speed of the driving host. The utility model has the advantages that: the rotation direction and the rotation speed of the driving main machine are detected by utilizing the principle that the photoelectric sensing assembly senses reflected light, the cost is low, and the driving main machine and the driving main shaft are directly connected for driving without chain transmission, so that a relatively clean environment is provided for the photoelectric sensing assembly.
Description
Technical Field
The utility model relates to an staircase technical field especially relates to drive arrangement and automatic traveling system.
Background
An automatic traveling system is a conveying apparatus for conveying passengers, such as an escalator or a moving sidewalk, and generally includes a driving device for driving the escalator or the moving sidewalk to move.
In the existing driving device of the escalator or the moving sidewalk, the magnetic induction sensing assembly is adopted to detect the rotating speed and the steering of the driving host, and the cost is high.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problem, the utility model provides a driving device, technical scheme is as follows:
a driving device is used for driving an automatic walking system to operate and comprises a driving main shaft, a driving host and a detection mechanism, wherein the detection mechanism is connected with the driving host, and the driving main shaft is driven by the driving host; the detection mechanism comprises a photoelectric sensing assembly and a braking flywheel, the braking flywheel is driven by the driving host to rotate, a sensed part is arranged on the braking flywheel, the photoelectric sensing assembly is close to the sensed part, and along with the rotation of the braking flywheel, the photoelectric sensing assembly can sense the sensed part to detect the rotating direction and the rotating speed of the driving host.
So set up, detect the direction of rotation and the rotational speed of driving host computer with the principle of photoelectric sensing subassembly response reflection light, it is with low costs to, for no chain drive's direct connection drive between driving host computer and the drive main shaft, provide installation space and comparatively clear environment for the photoelectric sensing subassembly.
In one embodiment, the surface of the braking flywheel is provided with a plurality of arc-shaped hole grooves to form the sensed part, the hole grooves are uniformly distributed along the circumferential direction of the braking flywheel, an arrangement area is formed between every two adjacent hole grooves, and the arrangement area is formedArc length L of the center line of1Equal to the length L of the center line of the hole groove2。
So set up, the hole groove forms printing opacity and light-tight two parts with arranging the district, when braking flywheel is rotatory, can cooperate with photoelectric sensing subassembly for photoelectric sensing subassembly produces periodic pulse signal.
In one embodiment, the photoelectric sensing assemblies are one or more groups, each group of the photoelectric sensing assemblies includes a first photoelectric proximity switch and a second photoelectric proximity switch, an included angle between the first photoelectric proximity switch and the second photoelectric proximity switch is α, an included angle between the adjacent hole grooves is β, β is twice of α, and a distance from the first photoelectric proximity switch to a center of the braking flywheel is equal to a distance from the second photoelectric proximity switch to the center of the braking flywheel.
So set up, can make the rotation direction and the rotational speed that the braking flywheel was judged more accurately to the photoelectric sensing subassembly.
In one embodiment, the number of the hole slots is four, the radian of each hole slot is 45 °, the photoelectric sensing assembly comprises a first photoelectric proximity switch and a second photoelectric proximity switch, and an included angle between the first photoelectric proximity switch and the second photoelectric proximity switch is 22.5 °.
In one embodiment, the width W of the hole groove is larger than the diameter of the photoelectric sensing assembly along the radial direction of the braking flywheel.
So set up to make the photoelectric sensing subassembly can receive more light, produce more signals, in order to avoid the width undersize of hole groove to hide light.
In one embodiment, the photoelectric sensing assembly comprises a first photoelectric proximity switch and a second photoelectric proximity switch, and during the rotation of the braking flywheel, the phase difference Φ between the pulse signal generated by the first photoelectric proximity switch cooperating with the sensed part and the pulse signal generated by the second photoelectric proximity switch cooperating with the sensed part is in a range of 45 ° to 135 °.
So set up, can make the photoelectric sensing subassembly judge the direction of rotation and the rotational speed of braking flywheel more accurately.
In one embodiment, a plurality of hole grooves are formed in the outer peripheral surface of the braking flywheel at intervals to form the sensed portion, the hole grooves are uniformly distributed along the circumferential direction of the braking flywheel, the photoelectric sensing assemblies are one or more groups, each group of the photoelectric sensing assemblies includes a first photoelectric proximity switch and a second photoelectric proximity switch, the first photoelectric proximity switch and the second photoelectric proximity switch are arranged at intervals and are arranged on the outer side of the braking flywheel, and the distance from the first photoelectric proximity switch to the center of the braking flywheel is equal to the distance from the second photoelectric proximity switch to the center of the braking flywheel.
In one embodiment, the detection mechanism further includes a protective cover, and the protective cover is sleeved outside the braking flywheel.
So set up to protect in contrast the braking flywheel.
In one embodiment, a support is arranged in the shield, the photoelectric sensing assembly is arranged in the shield, and one end of the photoelectric sensing assembly is connected to the inner wall of the shield or the support.
The utility model discloses still provide following technical scheme:
an automatic traveling system comprises a truss and the driving device, wherein the driving device is connected to the truss, and the automatic traveling system is an escalator or a moving sidewalk.
Compared with the prior art, the utility model provides a drive arrangement, through setting up the photoelectric sensing subassembly and by the detection of response portion realization to the direction of rotation and the rotational speed of driving the host computer, it is with low costs.
Drawings
Fig. 1 is a schematic view of a partial structure of an escalator or a moving sidewalk provided by the present invention;
FIG. 2 is a schematic structural diagram of a driving host;
FIG. 3 is an enlarged view of a portion of the brake flywheel;
FIG. 4 is a schematic structural diagram of a braking flywheel according to a first embodiment;
FIG. 5 is a graph of pulse signals generated by two electro-optical proximity switches;
FIG. 6 is a schematic structural diagram of a braking flywheel according to a second embodiment;
fig. 7 is a schematic structural diagram of a braking flywheel according to a second embodiment.
The symbols in the drawings represent the following meanings:
10. a truss; 20. a drive device; 21. driving the main shaft; 22. driving the host; 221. a motor; 222. a reduction gearbox; 223. a coupling; 224. a brake; 23. a detection mechanism; 231. a photoelectric sensing component; 2311. a first photoelectric proximity switch; 2312. a second photoelectric proximity switch; 232. braking the flywheel; 2321. a sensed part; 2322. a hole groove; 2324. saw teeth; 2325. a tooth root; 2326. tooth top; 2327. an arrangement area; 233. a shield; 24. a step drive chain; 25. step chain wheel.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely 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 work belong to the protection scope of the present invention.
It will be understood that when an element is referred to as being "mounted on" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1 to 7, the present invention provides an automatic traveling system, such as an escalator or a moving sidewalk, which can be used in shopping malls, passenger stations, etc. for people to climb stairs or walk automatically.
Referring to fig. 1 to 3, the escalator or moving walkway includes a truss 10 and a driving device 20, the driving device 20 is installed on the truss 10, and the driving device 20 is used for driving the escalator or moving walkway to move to carry an object to a predetermined position.
Specifically, the driving device 20 includes a driving main shaft 21, a driving main machine 22 and a detecting mechanism 23, the detecting mechanism 23 is connected to the driving main machine 22 and is used for detecting and controlling the rotation speed, position, forward and reverse rotation, etc. of the driving main machine 22, the driving main shaft 21 is connected to the driving main machine 22 and is driven by the driving main machine 22, and the driving main machine 22 drives the driving main shaft 21 to rotate.
Further, the driving main machine 22 includes a motor 221, a reduction gearbox 222 and a coupling 223, the rotation shaft of the motor 221 is connected to the reduction gearbox 222 through the coupling 223, and the reduction gearbox 222 is connected to the driving main shaft 21 and is used for controlling the rotation speed of the driving main shaft 21.
The coupling 223 includes a first flange (not shown) and a second flange (not shown), one side of the first flange is connected to the rotation shaft of the motor 221, one end of the second flange is connected to the input shaft of the reduction box 222, the first flange and the second flange are attached to each other and fixedly connected by fasteners such as bolts, and one side of the reduction box 222 away from the second flange is connected to the driving spindle 21.
A brake 224 is disposed on the outer peripheral side of the second flange, and the brake 224 is used for braking the drive spindle 21 so that the drive spindle 21 can be stopped quickly.
Preferably, the present invention provides a direct drive without chain transmission between the motor 221 and the driving spindle 21. The chain driving between the conventional motor 221 and the driving spindle 21 will affect the installation space of the detecting mechanism 23, and the chain will have lubricating oil to contaminate the detecting mechanism 23.
As shown in fig. 3, the detection mechanism 23 includes a photoelectric sensing element 231 and a brake flywheel 232, the brake flywheel 232 is located on the outer peripheral side of the brake 224, and the brake flywheel 232 is rotated by the motor 221. The braking flywheel 232 is provided with a sensed part 2321, the photoelectric sensing component 231 is disposed close to the sensed part 2321, and the photoelectric sensing component 231 can cooperate with the sensed part 2321 to detect and control the rotation direction and the rotation speed of the driving host 22. So set up, provide the space for detection mechanism 23's installation, and do not have chain drive's direct connection drive to need lubricating oil, and detection mechanism 23 is far away with following step driving chain 24 distance to for detection mechanism 23 provides comparatively clean environment, simultaneously, also avoid photoelectric sensing subassembly 231 to receive the interference, photoelectric sensing subassembly 231 is compared with traditional magnetic induction sensing subassembly with low costs.
Further, the detection mechanism 23 further includes a shield 233, the shield 233 is disposed on the periphery of the brake flywheel 232 and fixed to the brake 224, one end of the photoelectric sensing element 231 is connected to the inner wall of the shield 233, and the other end extends toward the sensed part 2321; alternatively, a bracket (not shown) is disposed in the cover 233, the bracket is fixed to the stopper 224, and the photoelectric sensing element 231 is disposed on the bracket. The cover 233 protects the photo sensor unit 231 and prevents the lubricant on the step chain 24 from contaminating the photo sensor unit 231 and interfering with the photo sensor unit 231.
Preferably, the photoelectric sensing elements 231 are one or more groups, each group of the photoelectric sensing elements 231 includes a first photoelectric proximity switch 2311 and a second photoelectric proximity switch 2312, and the first photoelectric proximity switch 2311 and the second photoelectric proximity switch 2312 are connected to the inner wall or the bracket of the cover 233 at intervals.
The driving device 20 further includes a step driving chain 24 and at least two step sprockets 25, the at least two step sprockets 25 are respectively disposed at two ends of the driving main shaft 21, the step driving chain 24 is engaged with the step sprockets 25 to drive the main shaft 21 to rotate, so as to drive the step sprockets 25 to rotate, and further drive the step driving chain 24 to transmit.
Example one
Referring to fig. 4, a plurality of arc-shaped hole slots 2322 are formed in the surface of the braking flywheel 232, the induced part 2321 is formed by the plurality of hole slots 2322, the hole slots 2322 are uniformly distributed along the circumferential direction of the braking flywheel 232, an arrangement region 2327 is formed between adjacent hole slots 2322, and the arc length L of the center line of the arrangement region 2327 is equal to the arc length L of the center line of the arrangement region 23271Is equal to the arc length L of the center line of the slot 23222. With such an arrangement, since the aperture 2322 transmits light, the lengths of the light-containing portion and the non-light-containing portion are consistent, and a regular periodic pulse signal can be formed.
Further, during the rotation of the brake flywheel 232, the phase difference Φ between the pulse signal generated by the first electro-optical proximity switch 2311 cooperating with the sensed part 2321 and the pulse signal generated by the second electro-optical proximity switch 2312 cooperating with the sensed part 2321 is in the range of 45 ° to 135 °. It can be understood that if the phase difference Φ between the two is too small, it cannot be detected precisely which pulse signal of the photoelectric proximity switch leads and which lags, so that the rotation direction of the driving host 22 cannot be determined accurately; if the phase difference Φ between the two signals is too large, the lagging electro-optical proximity switch generates too few signals in the same period, and the rotation direction of the driving master 22 cannot be accurately determined. Therefore, the phase difference Φ is set to be in the range of 45 ° to 135 ° here so that the rotational direction of the driving source 22 can be accurately determined during the rotation of the brake flywheel 232.
Preferably, the phase difference Φ between the pulse signal generated by the first photoelectric proximity switch 2311 cooperating with the sensed part 2321 and the pulse signal generated by the second photoelectric proximity switch 2312 cooperating with the sensed part 2321 is 90 °.
Further, an included angle between the first photoelectric proximity switch 2311 and the second photoelectric proximity switch 2312 is α, an included angle between centers of adjacent hole slots 2322 is β, and β is twice α. It is understood that if the angle between the first and second electro- optical proximity switches 2311 and 2312 is too small, it will result in too small a phase difference between the two electro-optical proximity switches, and if the angle between the first and second electro- optical proximity switches 2311 and 2312 is too large, it will result in too large a phase difference between the two electro-optical proximity switches.
Preferably, in this embodiment, the number of the hole slots 2322 is four and is arc-shaped, the radian of each hole slot 2322 is 45 °, the number of the optical proximity switches is two, and an included angle between the two optical proximity switches is 22.5 °. In other embodiments, the number of the holes 2322 may be set to be 2, 3 or more than 5, and the included angle between the first photoelectric proximity switch 2311 and the second photoelectric proximity switch 2312 may be adjusted according to the number of the holes 2322.
Along the radial direction of the braking flywheel 232, the width W of the hole slot 2322 is larger than the diameter of any one of the optoelectronic proximity switches, and if the width W of the hole slot 2322 is too small, the light sensing of the optoelectronic sensing component 231 is affected.
The distance from the first photoelectric proximity switch 2311 to the center of the braking flywheel 232 is equal to the distance from the second photoelectric proximity switch 2312 to the center of the braking flywheel 232, so that the first photoelectric proximity switch 2311 and the second photoelectric proximity switch 2312 can generate the same pulse signals for comparison.
Referring to fig. 5, when it is detected that the pulse signal of the first photoelectric proximity switch 2311 leads the second photoelectric proximity switch 2312 and 3 pulse signals are continuously detected to lead, it can be determined that the motor 221 is rotating forward; when the pulse signal of the second photoelectric proximity switch 2312 is detected to be ahead of the first photoelectric proximity switch 2311 and 3 pulse signals are continuously detected to be ahead, it can be determined that the motor 221 is in reverse rotation at the moment; if the determined rotation direction of the motor 221 is different from the set running direction, a reverse fault is pre-determined in advance; when the pulse signal frequency of the first photoelectric proximity switch 2311 or the second photoelectric proximity switch 2312 is detected to be greater than a first set threshold value, the judgment is that the speed is over-speed; when the frequency of the pulse signal generated by the first photoelectric proximity switch 2311 or the second photoelectric proximity switch 2312 is detected to be smaller than a second set threshold value, the reverse fault is pre-judged in advance. It should be noted that, in this embodiment, the first set threshold is 110% of the speed of the escalator or moving walk in the initial operation, and the second set threshold is 15% of the speed of the escalator or moving walk in the initial operation.
Example two
Referring to fig. 6 and 7, the structure of the present embodiment is substantially the same as that of the first embodiment, and the description of the same parts is omitted, except that:
the surface of the braking flywheel 232 is not provided with the hole slot 2322, but a plurality of mutually spaced hole slots 2322 are arranged on the outer peripheral surface of the braking flywheel 232, the first photoelectric proximity switch 2311 and the second photoelectric proximity switch 2312 are mutually spaced and arranged on the outer peripheral surface of the braking flywheel 232, when the first photoelectric proximity switch 2311 and the second photoelectric proximity switch 2312 are close to the hole slot 2322, the light is sensed, and when the first photoelectric proximity switch 2311 and the second photoelectric proximity switch 2312 are close to the gap between the hole slot 2322 and the hole slot 2322, the light is not sensed.
Referring to fig. 6, the outer circumferential surface of the brake flywheel 232 may have a shape of serrations 2324, wherein the tooth roots 2325 of the plurality of serrations 2324 form a hole slot 2322, and the protrusions of the plurality of serrations 2324 form a tooth tip 2326. In other embodiments, referring to fig. 7, the outer peripheral surface of the brake flywheel 232 may also have a square wave shape.
The utility model also provides an automatic traveling system, including above-mentioned drive arrangement 20, this automatic traveling system is moving walk or automatic escalator.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. A driving device is used for driving an automatic traveling system to operate and comprises a driving main shaft (21), a driving host (22) and a detection mechanism (23), wherein the detection mechanism (23) is connected with the driving host (22), and the driving main shaft (21) is driven by the driving host (22);
the detection mechanism (23) is characterized by comprising a photoelectric sensing component (231) and a braking flywheel (232), wherein the braking flywheel (232) is driven to rotate by the driving host (22), a sensed part (2321) is arranged on the braking flywheel (232), the photoelectric sensing component (231) is arranged close to the sensed part (2321), and along with the rotation of the braking flywheel (232), the photoelectric sensing component (231) can sense the sensed part (2321) to detect the rotating direction and the rotating speed of the driving host (22).
2. The driving device according to claim 1, wherein a plurality of arc-shaped hole grooves (2322) are formed in the surface of the braking flywheel (232) to form the sensed part (2321), the hole grooves (2322) are uniformly distributed along the circumferential direction of the braking flywheel (232), an arrangement region (2327) is formed between the adjacent hole grooves (2322), and the arc length L of the center line of the arrangement region (2327)1Is equal to the arc length L of the central line of the hole slot (2322)2。
3. The driving device according to claim 2, wherein the photo-electric sensing elements (231) are one or more groups, each group of photo-electric sensing elements (231) includes a first photo-electric proximity switch (2311) and a second photo-electric proximity switch (2312), and an included angle between the first photo-electric proximity switch (2311) and the second photo-electric proximity switch (2312) is α;
the included angle between the adjacent hole grooves (2322) is beta, beta is twice of alpha, and the distance from the first photoelectric proximity switch (2311) to the center of the brake flywheel (232) is equal to the distance from the second photoelectric proximity switch (2312) to the center of the brake flywheel (232).
4. The driving device according to claim 2, wherein the number of the slots (2322) is four, and the arc of each slot (2322) is 45 °, and the photo-electric sensing component (231) comprises a first photo-electric proximity switch (2311) and a second photo-electric proximity switch (2312), and the angle between the first photo-electric proximity switch (2311) and the second photo-electric proximity switch (2312) is 22.5 °.
5. The drive arrangement according to claim 2, characterized in that the width W of the bore recess (2322) in the radial direction of the brake flywheel (232) is larger than the diameter of the photo-electric sensor assembly (231).
6. The driving device according to claim 1, wherein the photoelectric sensing component (231) comprises a first photoelectric proximity switch (2311) and a second photoelectric proximity switch (2312), and a phase difference Φ between a pulse signal generated by the first photoelectric proximity switch (2311) in cooperation with the sensed part (2321) and a pulse signal generated by the second photoelectric proximity switch (2312) in cooperation with the sensed part (2321) ranges from 45 ° to 135 ° during rotation of the braking flywheel (232).
7. A drive arrangement according to claim 1, characterized in that the brake flywheel (232) is provided on its outer circumferential surface with a plurality of mutually spaced-apart bore grooves (2322), so as to form the sensed part (2321), a plurality of the hole grooves (2322) are uniformly distributed along the circumferential direction of the brake flywheel (232), the photoelectric sensing components (231) are one group or a plurality of groups, each group of the photoelectric sensing components (231) comprises a first photoelectric proximity switch (2311) and a second photoelectric proximity switch (2312), the first photoelectric proximity switch (2311) and the second photoelectric proximity switch (2312) are arranged at intervals and are arranged at the outer side of the brake flywheel (232), and the distance from the first electro-optical proximity switch (2311) to the center of the braking flywheel (232) is equal to the distance from the second electro-optical proximity switch (2312) to the center of the braking flywheel (232).
8. The driving device according to claim 1, wherein the detecting mechanism (23) further comprises a protective cover (233), and the protective cover (233) is sleeved outside the brake flywheel (232).
9. The driving apparatus according to claim 8, wherein a support is provided in the housing (233), the photo sensor module (231) is provided in the housing (233), and one end of the photo sensor module (231) is connected to an inner wall of the housing (233) or the support.
10. An automated walking system, comprising a truss and the driving device of any one of claims 1 to 9, wherein the driving device is connected to the truss, and wherein the automated walking system is an escalator or a moving sidewalk.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120403792.2U CN215160163U (en) | 2021-02-23 | 2021-02-23 | Driving device and automatic traveling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120403792.2U CN215160163U (en) | 2021-02-23 | 2021-02-23 | Driving device and automatic traveling system |
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| CN215160163U true CN215160163U (en) | 2021-12-14 |
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| CN202120403792.2U Active CN215160163U (en) | 2021-02-23 | 2021-02-23 | Driving device and automatic traveling system |
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| CN (1) | CN215160163U (en) |
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- 2021-02-23 CN CN202120403792.2U patent/CN215160163U/en active Active
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