CN108622783B - Automatic oiling device of escalator step chain - Google Patents
Automatic oiling device of escalator step chain Download PDFInfo
- Publication number
- CN108622783B CN108622783B CN201810697570.9A CN201810697570A CN108622783B CN 108622783 B CN108622783 B CN 108622783B CN 201810697570 A CN201810697570 A CN 201810697570A CN 108622783 B CN108622783 B CN 108622783B
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- China
- Prior art keywords
- step chain
- hole
- straight sleeve
- escalator step
- mandrel
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Links
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 230000006835 compression Effects 0.000 claims description 9
- 238000007906 compression Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 21
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 239000004519 grease Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B31/00—Accessories for escalators, or moving walkways, e.g. for sterilising or cleaning
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N11/00—Arrangements for supplying grease from a stationary reservoir or the equivalent in or on the machine or member to be lubricated; Grease cups
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Escalators And Moving Walkways (AREA)
Abstract
The invention discloses an automatic oiling device of an escalator step chain, which comprises a shell, a cover plate, a bottom plate and a mandrel penetrating through the cover plate and the bottom plate; a plurality of blind holes are radially arranged on the outer circumference of the bottom plate, and the included angles of any two adjacent blind holes in the circumferential direction are equal; a channel is respectively arranged between each blind hole and the inner cavity of the shell, a spring is respectively arranged in each blind hole, and a straight sleeve is respectively inserted in each blind hole and props against the corresponding spring; a first through hole is formed in the wall of each straight sleeve, and when the straight sleeve moves inwards, the first through holes in the straight sleeves can be communicated with the corresponding channels. The automatic oiling device for the escalator step chain provided by the invention realizes that the pin shafts on the escalator step chain are sequentially contacted with the straight sleeve one by one, and the pin shafts are oiled in the contact process, so that the oiling efficiency is improved, and the labor intensity is reduced.
Description
Technical Field
The invention relates to the technical field of escalator, in particular to an automatic oiling device for an escalator step chain.
Background
When the step chain of the escalator is used, friction can occur among parts such as chain plates, pin shafts, sleeves, rollers and the like, and lubricating oil needs to be added for lubrication. Patent publication number CN 206886502U discloses a pin for an escalator step chain, which is convenient to oil injection to a certain extent, but still manually and individually injects oil to chain links by workers, and the escalator step chain has more connection, high manual oil injection labor intensity and lower oil injection efficiency.
It can be seen that there is a need for improvements and improvements in the art.
Disclosure of Invention
In view of the above-mentioned shortcomings of the prior art, it is an object of the present invention to provide an automatic oiling device for an escalator step chain that solves the problem of manually and individually oiling the links of the escalator step chain by a worker in the prior art.
In order to achieve the above purpose, the invention adopts the following technical scheme:
an automatic oiling device of an escalator step chain comprises a hollow shell, a cover plate arranged at the top of the shell, a circular bottom plate arranged at the bottom of the shell, and a mandrel penetrating through the cover plate and the bottom plate; the bottom plate is coaxially arranged with the mandrel and can rotate relative to the mandrel; a plurality of blind holes are radially arranged on the outer circumference of the bottom plate, and the included angles of any two adjacent blind holes in the circumferential direction are equal; a channel is respectively arranged between each blind hole and the inner cavity of the shell, a spring is respectively arranged in each blind hole, and a straight sleeve is respectively inserted in each blind hole and props against the corresponding spring; a first through hole is formed in the wall of each straight sleeve, and when the straight sleeve moves inwards, the first through holes in the straight sleeves can be communicated with the corresponding channels.
In the automatic oiling device of the escalator step chain, an axial hole is formed in the mandrel from the top end, and at least one second through hole used for communicating the axial hole with the inner cavity of the shell is formed in the mandrel.
In the automatic oiling device of the escalator step chain, the top end of the mandrel is in threaded connection with a pipe joint, and the outer wall of the top of the pipe joint is provided with barbs.
In the automatic oiling device of the escalator step chain, a first bearing is arranged on the bottom plate, a second bearing is arranged on the cover plate, and the mandrel penetrates through the first bearing and the second bearing; the bottom end of the mandrel is provided with a first annular flange, the first annular flange is propped against the first bearing, the top end of the mandrel is in threaded connection with a locking nut, and the locking nut is propped against the second bearing.
In the automatic oiling device of the escalator step chain, the bottom end of the mandrel is connected with a bracket.
In the automatic oiling device of the escalator step chain, the shell is cylindrical, a second annular flange is arranged on the lower surface of the cover plate and is inserted into the shell downwards, and the outer wall of the second annular flange abuts against the inner wall of the shell.
In the automatic oiling device of the escalator step chain, a compression nut is respectively arranged on the bottom plate corresponding to each blind hole, each straight sleeve comprises a small-diameter section and a large-diameter section, and the small-diameter section of each straight sleeve extends outwards from the corresponding compression nut; the first through hole of each straight sleeve is arranged on the large-diameter section.
In the automatic oiling device of the escalator step chain, the inner diameter of the small-diameter section of each straight sleeve is smaller than that of the large-diameter section, and the springs in the blind holes are respectively inserted into the large-diameter sections of the corresponding straight sleeves.
In the automatic oiling device of the escalator step chain, the edge of the small-diameter section outwards of each straight sleeve is provided with a taper hole, and each taper hole and the straight sleeve are coaxially arranged.
The beneficial effects are that:
compared with the prior art, the automatic oiling device for the escalator step chain provided by the invention has the advantages that the blind holes, the straight sleeves, the springs and the like are arranged on the bottom plate through arranging the parts such as the shell, the mandrel of the bottom plate and the like, so that the rotation of the escalator step chain drives the cover plate, the bottom plate and the shell to rotate together, the pin shafts on the escalator step chain can be contacted with the straight sleeves on the bottom plate one by one in sequence, the oiling work is completed after the escalator step chain rotates one round of edges, the labor intensity is reduced, and the oiling efficiency is improved.
Drawings
Fig. 1 is a schematic structural view of an automatic oiling device for an escalator step chain.
Fig. 2 is a partial enlarged view of the region S1 in fig. 1.
Fig. 3 is a partial enlarged view of the region S2 in fig. 1.
Fig. 4 is a cross-sectional view A-A of fig. 1.
Fig. 5 is a schematic working diagram of an automatic oiling device for an escalator step chain.
Detailed Description
The invention provides an automatic oiling device for an escalator step chain, which is used for making the purposes, technical schemes and effects of the invention clearer and more definite, and is further described in detail below by referring to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Referring to fig. 1 to 4, the present invention provides an automatic oiling device for an escalator step chain. As used herein, "inwardly" refers to toward the mandrel, and "outwardly" refers to the opposite direction from "inwardly". The terms "top," "bottom," and the like are used herein for convenience of description based on the perspective of fig. 1, but are not necessarily placed as shown in fig. 1 in actual use, and may be appropriately adjusted according to the actual situation.
The automatic oiling device of the escalator step chain comprises a hollow shell 2, a cover plate 3 arranged at the top of the shell, a circular bottom plate 4 arranged at the bottom of the shell and a mandrel 1 penetrating through the cover plate and the bottom plate; the bottom plate 4 is arranged coaxially with the spindle 1 and is rotatable relative to the spindle; a plurality of blind holes 402 are radially arranged on the outer circumference of the bottom plate 4, and the included angles of any two adjacent blind holes 402 in the circumferential direction are equal; a channel 401 is respectively arranged between each blind hole 402 and the inner cavity of the shell, a spring 59 is respectively arranged in each blind hole 401, and a straight sleeve 5 is respectively inserted in each blind hole and is propped against the corresponding spring 59; a first through hole 501 is formed in the wall of each straight sleeve 59, and when the straight sleeve moves inwards, the first through hole on the straight sleeve can be communicated with the corresponding channel, in other words, when the spring is in a normal state, the side wall of the straight sleeve blocks the corresponding channel (as shown in fig. 3). In the drawings, 6 blind holes and corresponding 6 straight sleeves are schematically drawn, and then the included angle between any two adjacent blind holes in the circumferential direction is 60 degrees, which is not limited to the 6 blind holes and the straight sleeves. The included angles of any two adjacent blind holes in the circumferential direction are equal, namely the intervals of the outwards-facing ends of any two adjacent straight sleeves are equal. The first through hole formed in the straight sleeve is preferably an arc-shaped hole, and the upper part and the bottom of the arc-shaped hole can be observed through the drawing, namely, the radian of the arc-shaped hole exceeds 180 degrees, so that the first through hole can be communicated with a corresponding channel even if the first through hole rotates by a moving angle.
As shown in fig. 5, since the center line spacing of any two adjacent pins 91 in the step chain 9 of the escalator is equal, in practical application, the length of an arc (coaxial with the mandrel) formed by connecting the midpoints of the ends of the outward of any two adjacent straight sleeves 5 is equal to the spacing of the two adjacent pins, so that each pin can sequentially contact with the straight sleeve when the step chain moves. It will be appreciated that the invention is not limited to the diameter of the base plate, the number of straight sleeves, and the size of the sleeves, as these dimensions are determined by the size of the pins in the escalator step chain to be lubricated and the centerline spacing of the adjacent two pins.
Further, in order to facilitate oiling into the inner cavity of the shell, the following may be provided: the spindle 1 is provided with an axial bore 101 from the top end, as can be seen in fig. 2, the bottom end of the axial bore 101 extends into the housing, and at least one second through bore 102 (a plurality of second through bores are schematically shown in the drawing) for communicating the axial bore 101 with the inner cavity of the housing 2 is provided on the spindle. That is, the top end of the spindle is connected to an external oil pipe (not shown in the drawings), and oil in the oil pipe can enter the inner cavity of the housing through the axial hole and the second through hole of the spindle. When the oil pipe is actually in operation, the shell rotates and the mandrel is relatively static, so that the connection of the external oil pipe and the mandrel does not influence the normal rotation of the shell, and oil can be continuously injected into the shell.
Further, the top end of the mandrel is connected with a pipe joint 7 in a threaded manner, barbs 701 are arranged on the outer wall of the top of the pipe joint, and the pipe joint is arranged, so that an external oil pipe can be conveniently inserted.
Specifically, the connection between the spindle, the bottom plate and the cover plate may be provided as follows: the base plate 4 is provided with a first bearing 61, the cover plate 3 is provided with a second bearing 62, and the mandrel 1 passes through the first bearing 61 and the second bearing 62; the bottom end of the spindle 1 is provided with a first annular flange 11, which first annular flange 11 abuts against the first bearing, and the top end of the spindle 1 is screwed with a lock nut 63, which lock nut 63 abuts against the second bearing 62. The cover plate, the base plate and the housing are rotatable about the spindle as the spindle passes through the first and second bearings. After the lock nut is locked, not only the second bearing is fixed, but also the first annular flange is abutted against the first bearing, and the first bearing is also fixed; likewise, the mandrel is also fixed. This arrangement is simple, so that the first bearing, the second bearing and the spindle are all fixed, and therefore the cover plate, the base plate and the housing can be smoothly rotated. Preferably, the first annular flange and the mandrel are integrally formed.
In practice, a bracket 19 is connected to the bottom end of the spindle 1 for ease of installation. The bracket shown in the drawings is a hollow cuboid as a whole so as to simplify the bracket structure. Of course, the specific shape of the bracket is not limited herein, as the bracket adapted to the installation condition can be designed according to the actual situation in the field.
Further, the housing 2 has a cylindrical shape, and the lower surface of the cover plate 3 is provided with a second annular flange 31, and the second annular flange 31 is downwardly inserted into the housing 2, and the outer wall of the second annular flange 31 abuts against the inner wall of the housing 2. The shell is limited to be cylindrical, and the second annular flange is arranged on the lower surface of the cover plate, so that detachable connection between the cover plate and the shell is realized, the cover plate is opened after a period of use, and the interior of the shell is cleaned.
As shown in fig. 3, in order to further improve the stability of the straight sleeve and avoid the accidental falling during the movement of the straight sleeve, the following settings may be made: a compression nut 58 is respectively arranged on the bottom plate 4 corresponding to each blind hole, each straight sleeve 5 comprises a small-diameter section 52 and a large-diameter section 51 (the small-diameter section and the large-diameter section are coaxially arranged), and the small-diameter section of each straight sleeve extends outwards from the corresponding compression nut; the first through 401 hole of each straight sleeve is arranged on the large-diameter section 51. The compression nuts are provided with external threads (not visible in the figure), and the bottom plate is provided with internal threads corresponding to the compression nuts, so that each compression nut is in threaded connection with the bottom plate. Preferably, each blind hole is a round hole, the straight sleeve comprises a small-diameter section and a large-diameter section which are cylindrical respectively, and the small-diameter section and the large-diameter section of each straight sleeve are integrally formed. Through setting up the straight cover into path section and major diameter section for path section outwards stretches out in the lock nut, and major diameter section can't outwards stretch out in the lock nut, thereby plays to carrying out spacing to the straight cover and avoid the motion in-process straight cover to drop.
Further, as shown in fig. 3, the inner diameter of the small diameter section 52 of each straight sleeve is smaller than the inner diameter of the large diameter section 51, and the springs 59 in each blind hole are respectively inserted into the large diameter section 51 of the corresponding straight sleeve. Since the inner diameter of the small diameter section of the straight sleeve is smaller than the inner diameter of the large diameter section, the spring is inserted into the large diameter section of the straight sleeve and can finally abut against the inward end of the small diameter section, and of course, the spring is not completely contained in the large diameter section of the straight sleeve in a natural state, but still a part of the spring extends out of the large diameter section of the straight sleeve (as shown in fig. 3). The installation of the spring is convenient to set up like this, plays the locate action to the spring.
Further, the outward end edge of the minor diameter section 52 of each straight sleeve is provided with a tapered hole 521, each tapered hole being coaxially disposed with the straight sleeve where it is located, as shown in fig. 3, the tapered holes being substantially frustoconical, which facilitates guiding of the pins of the escalator step chain after contact with the straight sleeve, so that the pins can be centered with the straight sleeve.
Referring to fig. 5, the following brief description of the working principle is provided: in actual use, the bracket of the automatic oiling device of the escalator step chain can be fixed on a truss (not shown in the figure) of the escalator or other suitable positions, and the mandrel is connected with an external oil pipe (not shown in the figure) through a pipe joint, so that oil is injected into the shell. One of the straight sleeves 5 is aligned with and against one of the pins 91 on the escalator step chain, and the escalator is started to rotate the escalator step chain 9 (the direction of movement of the escalator step chain 9 is shown by the dashed arrow in fig. 5). When one pin shaft is contacted with and propped against one straight sleeve, the straight sleeve is pushed inwards, the spring is compressed, the first through hole on the straight sleeve is communicated with the corresponding channel on the bottom plate, and oil enters the inner cavity of the straight sleeve and finally enters the oil cup on the pin shaft, so that the oil injection of the pin shaft is realized. When the pin shaft is separated from the straight sleeve, the straight sleeve is restored under the pushing of the spring, and the side wall of the straight sleeve blocks the corresponding channel on the bottom plate. The step chain of the escalator continuously rotates, the cover plate, the bottom plate and the shell also rotate along with the step chain (the solid arrow in fig. 5 shows the rotating direction of the bottom plate 4), and each pin shaft is sequentially contacted with the straight sleeve, so that the oiling process is repeated. After the escalator step chain rotates for one circle, each pin shaft is filled with oil, namely, the automatic oil filling of the escalator step chain is completed. How lubrication is achieved after the pin 91 is filled with oil is a prior art (e.g., patent publication No. CN 206886502U), which is not further described herein.
It should be noted that the automatic oiling device of the escalator step chain can be used for oiling or grease injection. When the device is used for injecting grease, the external oil pipe is communicated with the mandrel, and a pressurizing device (not shown in the figure) is further arranged outside the device so that the grease is subjected to certain pressure, and therefore the grease in the shell can smoothly enter the straight sleeve and be extruded into the oil cup of the pin shaft.
According to the analysis, the automatic oiling device for the escalator step chain has the advantages of (1) simple structure, easiness in manufacturing and low cost. (2) The cover plate, the bottom plate and the shell are driven to rotate together through the rotation of the escalator step chain, so that an automatic oiling device of the escalator step chain does not need to be additionally provided with a power device. (3) The pin shafts on the escalator step chain can be contacted with the straight sleeves on the bottom plate one by one in sequence, so that the escalator step chain is rotated for one circle to finish oiling work, labor intensity is reduced, and oiling efficiency is improved.
It will be understood that equivalents and modifications will occur to those skilled in the art based on the present invention and its spirit, and all such modifications and substitutions are intended to be included within the scope of the present invention.
Claims (7)
1. The automatic oiling device for the escalator step chain is characterized by comprising a hollow shell, a cover plate arranged at the top of the shell, a circular bottom plate arranged at the bottom of the shell and a mandrel penetrating through the cover plate and the bottom plate; the bottom plate is coaxially arranged with the mandrel and can rotate relative to the mandrel; a plurality of blind holes are radially arranged on the outer circumference of the bottom plate, and the included angles of any two adjacent blind holes in the circumferential direction are equal; a channel is respectively arranged between each blind hole and the inner cavity of the shell, a spring is respectively arranged in each blind hole, and a straight sleeve is respectively inserted in each blind hole and props against the corresponding spring; the wall of each straight sleeve is provided with a first through hole, after the straight sleeve moves inwards, the first through holes on the straight sleeves can be communicated with the corresponding channels, the first through holes are arc-shaped holes, the radian of each first through hole is larger than 180 degrees, the outwards facing end of the small-diameter section of each straight sleeve is respectively provided with a taper hole, each taper hole and the straight sleeve at which the taper hole is positioned are coaxially arranged, the bottom plate is respectively provided with a compression nut corresponding to each blind hole, each straight sleeve comprises a small-diameter section and a large-diameter section, and the small-diameter section of each straight sleeve extends outwards from the corresponding compression nut; the first through hole of each straight sleeve is arranged on the large-diameter section.
2. The automatic oiling device of an escalator step chain according to claim 1, wherein the mandrel is provided with an axial hole from the top end, and the mandrel is provided with at least one second through hole for communicating the axial hole with the inner cavity of the housing.
3. The automatic oiling device of an escalator step chain according to claim 1, wherein the top end of the mandrel is in threaded connection with a pipe joint, and the outer wall of the top of the pipe joint is provided with barbs.
4. The automatic oiling device of an escalator step chain according to claim 1, wherein a first bearing is arranged on the bottom plate, a second bearing is arranged on the cover plate, and the mandrel passes through the first bearing and the second bearing; the bottom end of the mandrel is provided with a first annular flange, the first annular flange is propped against the first bearing, the top end of the mandrel is in threaded connection with a locking nut, and the locking nut is propped against the second bearing.
5. The automatic oiling device of an escalator step chain according to claim 1, wherein a bracket is connected to the bottom end of the spindle.
6. The automatic oiling device of an escalator step chain according to claim 1, wherein the housing is cylindrical, the lower surface of the cover plate is provided with a second annular flange which is inserted downward into the housing, and the outer wall of the second annular flange abuts against the inner wall of the housing.
7. An automatic oiling device for an escalator step chain according to claim 1, characterized in that,
the inner diameter of the small diameter section of each straight sleeve is smaller than that of the large diameter section, and the springs in the blind holes are respectively inserted into the large diameter sections of the corresponding straight sleeves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810697570.9A CN108622783B (en) | 2018-06-29 | 2018-06-29 | Automatic oiling device of escalator step chain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810697570.9A CN108622783B (en) | 2018-06-29 | 2018-06-29 | Automatic oiling device of escalator step chain |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108622783A CN108622783A (en) | 2018-10-09 |
| CN108622783B true CN108622783B (en) | 2023-12-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810697570.9A Active CN108622783B (en) | 2018-06-29 | 2018-06-29 | Automatic oiling device of escalator step chain |
Country Status (1)
| Country | Link |
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| CN (1) | CN108622783B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109357145A (en) * | 2018-12-17 | 2019-02-19 | 日立电梯（广州）自动扶梯有限公司 | Lubricating arrangement and staircase |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0611427U (en) * | 1992-07-20 | 1994-02-15 | セイレイ工業株式会社 | Transport chain lubrication device |
| CN201751356U (en) * | 2010-05-19 | 2011-02-23 | 蒂森克虏伯扶梯(中国)有限公司 | Device for automatically adding oil or grease to step chain |
| CN103204365A (en) * | 2013-04-22 | 2013-07-17 | 江苏中烟工业有限责任公司徐州卷烟厂 | Automatic lubricating oil cup for chain |
| CN208932774U (en) * | 2018-06-29 | 2019-06-04 | 塞纳自动梯（佛山）有限公司 | The automatic oiling device of escalator step chain |
-
2018
- 2018-06-29 CN CN201810697570.9A patent/CN108622783B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0611427U (en) * | 1992-07-20 | 1994-02-15 | セイレイ工業株式会社 | Transport chain lubrication device |
| CN201751356U (en) * | 2010-05-19 | 2011-02-23 | 蒂森克虏伯扶梯(中国)有限公司 | Device for automatically adding oil or grease to step chain |
| CN103204365A (en) * | 2013-04-22 | 2013-07-17 | 江苏中烟工业有限责任公司徐州卷烟厂 | Automatic lubricating oil cup for chain |
| CN208932774U (en) * | 2018-06-29 | 2019-06-04 | 塞纳自动梯（佛山）有限公司 | The automatic oiling device of escalator step chain |
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| Publication number | Publication date |
|---|---|
| CN108622783A (en) | 2018-10-09 |
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