CN111890308A - Screw dismounting device and method for escalator roller - Google Patents
Screw dismounting device and method for escalator roller Download PDFInfo
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- CN111890308A CN111890308A CN202010895425.9A CN202010895425A CN111890308A CN 111890308 A CN111890308 A CN 111890308A CN 202010895425 A CN202010895425 A CN 202010895425A CN 111890308 A CN111890308 A CN 111890308A
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- 238000000034 method Methods 0.000 title claims abstract description 18
- 210000001503 joint Anatomy 0.000 claims description 4
- 230000000712 assembly Effects 0.000 claims description 2
- 238000000429 assembly Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 3
- 238000010079 rubber tapping Methods 0.000 description 16
- 238000012423 maintenance Methods 0.000 description 8
- 238000009434 installation Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
- B25B27/143—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same for installing wire thread inserts or tubular threaded inserts
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Escalators And Moving Walkways (AREA)
Abstract
The invention discloses a screw dismounting device and a screw dismounting method for an escalator roller, which comprise a first base, a second base, a cover body and a dismounting assembly, wherein the first base is provided with a first screw hole; the first base and the second base are of a two-half circular groove structure, and the two bases are oppositely spliced to form a circular groove structure; the roller is wrapped by the circular groove structure, and the side surface of the roller where the screw cap is located is exposed in the range of the groove opening; the cover body is buckled on the notch of the circular groove structure; the disassembling component is vertically arranged in the cover body and matched with the screw cap; the two bases, the cover body, the disassembling component and the roller wheel rotate synchronously, so that the disassembling component rotates coaxially with the roller wheel and the screw is disassembled. The screw can be quickly and stably disassembled, a stable constraint effect is formed on the disassembling assembly, the phenomenon of tooth sliding is avoided, and the problem that the screw cannot be disassembled due to tooth sliding of the groove on the screw cap is thoroughly solved.
Description
Technical Field
The invention belongs to the technical field of escalators, and particularly relates to a screw dismounting device and method for escalator rollers.
Background
In the construction of escalators or moving walkways, the upward or downward movement is achieved by the rotation of step rollers. Typically, self-tapping screws are used to secure the step rollers to the steps. The step roller is formed by combining a bearing and a polyurethane material, and can crack, wear, come unstuck and the like after being used for a certain time. Therefore, the step roller is frequently replaced on site in the maintenance of the escalator or moving sidewalk, and the key step of replacing the step roller is to remove the tapping screws.
In the prior art, the method for disassembling the step roller is to manually disassemble and take out the tapping screw through a hexagonal key or a screwdriver, and then to remove the step roller. In the manual operation process, the acting force exerted by the hand on the screwdriver or the hexagonal key is difficult to ensure absolute uniformity, the screwdriver or the hexagonal key is easy to skew due to uneven stress, the screwdriver or the hexagonal key is kept to rotate along the same axial lead with the self-tapping screw in the rotation process, and the screwdriver or the hexagonal key once skewed is easy to slide out of the groove of the self-tapping screw, so that the edge of the groove of the self-tapping screw is damaged, namely the self-tapping screw slides out of the tooth. Once the grooves of the tapping screw are damaged, the screwdriver or the hexagonal key is difficult to match with the tapping screw again, so that the tapping screw cannot be taken out.
In conclusion, how to ensure that the dismounting tools such as the screwdriver or the hexagonal key and the self-tapping screw rotate coaxially with the self-tapping screw in the process of dismounting the self-tapping screw and prevent the self-tapping screw from being inclined and slipping is very important for improving the maintenance efficiency of the escalator or the moving sidewalk and reducing the maintenance cost.
Disclosure of Invention
The invention aims to provide a screw dismounting device of an escalator roller, which is used for restricting the movement range of a dismounting tool such as a screwdriver or a hexagonal key and the like when a tapping screw is dismounted, avoiding the phenomena of deflection and slipping, thoroughly improving the problem of tooth slipping of the tapping screw, improving the maintenance efficiency and reducing the maintenance cost.
The invention is realized by the following technical scheme:
a screw dismounting device for an escalator roller comprises a first base, a second base, a cover body and a dismounting assembly; the first base and the second base are of a two-half circular groove structure, and the two bases are oppositely spliced to form a circular groove structure; the roller is wrapped by the circular groove structure, and the side surface of the roller where the screw cap is located is exposed in the range of the groove opening; the cover body is buckled on the notch of the circular groove structure; the disassembling component is vertically arranged in the cover body and matched with the screw cap; the two bases, the cover body, the disassembling component and the roller wheel rotate synchronously, so that the disassembling component rotates coaxially with the roller wheel and the screw is disassembled.
Through the scheme, the invention at least obtains the following technical effects:
if the dismounting component and the screw rotate coaxially, the dismounting component needs to be stably supported, so that the structure that the first base, the second base and the cover body are combined and coated on the outer surface of the roller is adopted as a support body of the dismounting component, and the dismounting component is fixed in the structure and matched with the groove on the screw cap of the screw. Through synchronous rotation of the two bases and the cover body, the roller, the screw and the dismounting component in the support body rotate along a coaxial line, and the problem that a groove on a screw cap is damaged due to the fact that the dismounting component is inclined in the manual rotation process is avoided.
Preferably, the outer edge of the notch of the circular groove structure is provided with an external thread; the inner edge of the cover opening of the cover body is provided with internal threads; the cover body is in threaded fit with the circular groove structure.
Preferably, a cylindrical boss is formed in the center of the top surface of the cover body, and a mounting hole is formed in the boss along the center line of the boss; the mounting hole is communicated with the inner cavity of the cover body and is used for mounting and dismounting the assembly; and a limiting cover is covered and buckled on the lug boss.
Preferably, the inner edge of the cover opening of the limit cover is provided with an internal thread, and the outer side wall of the boss is provided with an external thread; the limiting cover is in threaded fit with the boss.
Preferably, the bottom surface of the circular groove structure is provided with an avoiding groove for avoiding the roller mounting structure on the escalator, so that the two bases can be spliced oppositely from the two sides of the roller and wrap the roller therein.
Preferably, a first handle is mounted on the first base; and a second handle is arranged on the cover body.
Preferably, a backing ring is arranged between the inner surface of the circular groove structure and the outer surface of the roller; the outer diameter of the backing ring is the same as the inner diameter of the circular groove structure, and the inner diameter of the backing ring is the same as the outer diameter of the roller.
Preferably, the dismounting component is one of a hexagonal key, a triangular key, a flat head screwdriver and a plum blossom screwdriver.
Preferably, the first base and the second base are of a central symmetrical structure; a protruding key and an embedding groove are arranged on the butt joint edge of any one base; the two bases are spliced relatively to enable the two butt joint edges to be attached to each other, the protruding key on the first base is matched with the embedded groove on the second base, and the protruding key on the second base is matched with the embedded groove on the first base.
The invention also discloses a screw dismounting method for the escalator roller, which comprises the screw dismounting device for the escalator roller as claimed in claim 1, and is characterized by comprising the following steps:
s1: the first base and the second base are sleeved from two sides of the roller, the first base and the second base are spliced to form a circular groove structure, the roller is wrapped in the circular groove, and the side wall of the roller, on one side of which the screw cap is located, is exposed in the range of a notch of the circular groove structure;
s2: firstly, fixing the disassembling component in the upper cover, and then buckling the upper cover at the notch of the circular groove structure formed by the two bases; in the buckling process, the disassembling component corresponds to the screw with the same axial lead, and the disassembling end of the disassembling component is embedded into the groove on the screw cap for matching;
s3: the two bases and the cover body rotate synchronously, so that the rollers, the screws and the dismounting assemblies inside the two bases and the cover body rotate synchronously along the coaxial line, the screws are dismounted from the mounting position of the escalator, and the rollers are separated.
The invention has the beneficial effects that:
the invention can rapidly and stably disassemble the screw, forms a stable constraint effect on the disassembly assembly, avoids the occurrence of the phenomenon of tooth slipping and thoroughly solves the problem that the screw cannot be disassembled due to the tooth slipping of the groove on the screw cap. The maintenance efficiency of the escalator or the moving sidewalk is greatly improved, the repair cost caused by the fact that the roller is forcibly dismantled due to the fact that the screw cannot be taken out is saved, and the maintenance cost is reduced.
Drawings
Fig. 1 is a schematic structural view illustrating a screw removing device of an escalator roller according to an embodiment of the present invention mounted on a roller.
Fig. 2 is a schematic structural diagram of a disassembled screw dismounting device for an escalator roller according to an embodiment of the present invention.
Fig. 3 is a schematic top view of two bases according to an embodiment of the present invention.
Fig. 4 is a schematic side view of two bases according to an embodiment of the present invention.
Fig. 5 is a schematic bottom view of a cover according to an embodiment of the present invention.
Fig. 6 is a schematic side view of a cover according to an embodiment of the invention.
Legend:
1 a first base; 2 a second base; 3, rolling wheels; 4, a cover body; 5, disassembling the assembly; 6 avoiding the groove; 7, a backing ring; 8 a projecting key; 9 a tabling groove;
11 a first handle;
31 a screw cap;
41 boss; 42 mounting holes; 43 a limit cover; 44 second handle.
Detailed Description
The invention is further illustrated by the following figures and examples.
Example 1:
as shown in fig. 1-6, the present embodiment provides a screw dismounting device for an escalator roller, which comprises a first base 1, a second base 2, a cover 4 and a dismounting assembly 5;
the two bases are of two semicircular groove structures which are mutually symmetrical structures; the main body of any semicircular groove structure is a semicircular cylinder formed after being split along the diameter of the top circle of the cylinder, and a semicircular groove is formed in the semicircular cylinder.
When the two bases are mutually butted, the sections of the two semi-cylinders are mutually jointed to form a complete cylinder, and the two semi-circular grooves in the two semi-cylinders are also spliced to form a complete circular groove for wrapping the roller 3 in the groove; the circular groove forms a notch in one of the top surfaces of the cylinder exposing the side wall of the roller 3 where the screw cap 31 is located to facilitate mating of the removable assembly 5 with the recess in the screw cap 31.
After the two bases are installed, the disassembling component 5 is installed in the cover body 4; the detaching end of the detaching assembly 5 is inserted into the groove on the screw cap 31, and the cover 4 and the circular groove structure formed by the two bases are screwed and fixed in a threaded manner. The positional relationship of the detachment assembly 5 with the coaxial line of the screw can be secured. The integral structure formed by the two bases and the cover body 4 synchronously rotates to drive the roller 3, the screw and the disassembling component 5 to rotate along the same axial line, so that the screw is rotated and retreated from the mounting structure of the escalator, and the screw and the roller 3 are disassembled.
The removal assembly 5 is selected according to the type of the recess on the screw cap 31, in this embodiment, the recess on the screw cap 31 is a hexagonal recess, and the removal assembly 5 is matched with the hexagonal key with a proper size.
Because the roller 3 to be detached is installed in the installation structure on the escalator, the two seat bodies need to avoid the part of the shaft connection between the roller 3 and the installation structure on the escalator. Therefore, the avoidance groove 6 is arranged at the bottom of the circular groove structure formed by splicing the two seat bodies. The avoiding groove 6 is a complete through groove formed after the two bases are spliced, and after the two bases are split, the avoiding groove 6 can also be divided into two parts which are respectively arranged on the bottom surfaces of the two semicircular groove structures.
To facilitate the force application operation of the two bases and the cover 4, a first handle 11 and a second handle 44 are respectively provided on the first base 1 and the cover 4. The rotation of the two bases and the cover 4 can be controlled by operating the two handles.
In order to facilitate the disassembly/splicing between the two bases, two groups of centrosymmetric connecting structures are arranged on the semi-cylindrical sections of the two bases, namely a convex key 8 and an embedded groove 9, the convex key 8 on the first base 1 is embedded into the embedded groove 9 on the second base 2, and meanwhile, the convex key 8 on the second base 2 is embedded into the embedded groove 9 on the first base 1, so that the two bases can be quickly fixed, and the two bases are prevented from being separated and falling off in the rotating process. Meanwhile, the operation is simple and fast, and the maintenance efficiency can be improved.
Example 2:
as shown in fig. 1 to 6, since the rollers 3 on the escalator have different sizes, in order to adapt the detaching device to the rollers 3 with different sizes, the present embodiment improves the installation manner of the detaching assembly 5 in the cover 4 and the manner of wrapping the rollers 3 with two bases without changing the rest of the structure of the embodiment 1.
In order to facilitate replacement of the removable module 5 to match screws of different types and kinds, a removable mounting position is provided in the cover 4 to fix the removable module 5. The structure of the mounting position comprises a cylindrical boss 41 arranged at the center of the top surface of the cover body 4 and a limit cover 43 screwed on the end of the boss 41, and the center line of the boss 41 is provided with a mounting hole 42 for inserting the detaching assembly 5.
During specific installation, the dismounting end of the dismounting component 5 is inserted along the mounting hole 42 and protrudes out of the inner wall of the cover body 4, and when the cover body 4 is buckled on the two bases, the insertion depth of the dismounting component 5 is adjusted, so that the dismounting component 5 is fully embedded and matched with the groove on the screw cap 31. Finally, the limit cover 43 is covered on the boss 41 to block the mounting hole 42 and press the tail end of the disassembling component 5, so as to prevent the disassembling component 5 from sliding axially and separating from the groove on the screw cap 31.
In order to adapt the dismounting device to the rollers 3 with different sizes and ensure that the rollers 3 cannot deviate in the circular groove structure formed by the two seat bodies, a backing ring 7 is additionally arranged between the circular groove structure and the rollers 3. The backing ring 7 is used for filling a gap between the backing ring and the roller, so that the coincidence of the axial lead of the roller 3 and the circular groove structure is ensured, and the phenomenon that the roller 3 shifts in the circular groove structure to cause the deviation between the screw and the disassembling component 5 is avoided.
Example 3:
as shown in fig. 1 to 6, the present embodiment also provides a screw removing method for an escalator roller, which includes all the structures of embodiments 1 and 2 and maintains the structure thereof. The specific disassembly steps are as follows:
the method comprises the following steps: first base 1 embolias from 3 both sides of gyro wheel with second base 2, and first base 1 constitutes the circular slot structure with the concatenation of second base 2, wraps up gyro wheel 3 in the circular slot to make 3 lateral walls of gyro wheel of screw cap 31 place one side expose in the notch within range of circular slot structure.
Step two: and a backing ring 7 is inserted between the inner walls of the two bases and the roller 3 from the notch of the circular groove structure, so that the gap between the roller 3 and the two bases is tightly supported, and the axis of the roller 3 is kept to be coincident with the axis of the circular groove structure.
Step three: firstly, inserting a hexagonal key from the outer side of the cover body 4 to the inner side along the mounting hole 42, and then connecting the upper cover to the notch of the circular groove structure formed by the two bases through threads; in the screwing process, the hexagonal key corresponds to the screw with the same axial lead, and the hexagonal end of the hexagonal key is embedded into the hexagonal groove on the screw cap 31 for matching.
Step four: and covering and buckling a limit cover 43 on the end surface of the boss 41, so that the limit cover 43 presses the tail end of the hexagonal key to press the hexagonal end of the hexagonal key into the hexagonal groove of the screw and keep the hexagonal key from moving along the axial direction.
Step five: respectively holding the first handle 11 and the second handle 44, keeping the position of the first handle 11 unchanged, rotating the second handle 44 to enable the upper cover to drive the hexagonal key to rotate, and in the rotating process of the upper cover, due to the thread matching relationship between the upper cover and the circular groove structure, slowly moving the upper cover in the direction away from the roller 3; meanwhile, the hexagon key in the upper cover synchronously drives the screw to rotate along with the axis, and the screw is gradually withdrawn from the mounting structure of the roller 3 and the escalator.
Step six: and (3) sliding the two bases wrapped with the rollers 3 off the mounting structure of the escalator, removing the backing ring 7, and splitting the two bases to finish the disassembly of the rollers 3.
Various technical features in the above embodiments may be arbitrarily combined as long as there is no conflict or contradiction in the combination between the features, but is limited to the space and is not described one by one.
The present invention is not limited to the above-described embodiments, and various changes and modifications of the present invention are intended to be included within the scope of the claims and the equivalent technology of the present invention if they do not depart from the spirit and scope of the present invention.
Claims (10)
1. The utility model provides a screw dismounting device for automatic escalator gyro wheel which characterized in that: comprises a first base, a second base, a cover body and a dismounting component; the first base and the second base are of a two-half circular groove structure, and the two bases are oppositely spliced to form a circular groove structure; the roller is wrapped by the circular groove structure, and the side surface of the roller where the screw cap is located is exposed in the range of the groove opening; the cover body is buckled on the notch of the circular groove structure; the disassembling component is vertically arranged in the cover body and matched with the screw cap; the two bases fix the idler wheels and support the cover body, and the cover body drives the disassembling component and the screw to synchronously rotate, so that the disassembling component rotates coaxially with the idler wheels and the screw is disassembled.
2. The screw removing device for the escalator roller as claimed in claim 1, wherein the outer edge of the notch of the circular groove structure is provided with an external thread; the inner edge of the cover opening of the cover body is provided with internal threads; the cover body is in threaded fit with the circular groove structure.
3. The screw dismounting device for the escalator roller according to claim 1, wherein a cylindrical boss is formed at the center of the top surface of the cover body, and a mounting hole is formed along the center line of the boss; the mounting hole is communicated with the inner cavity of the cover body and is used for mounting and dismounting the assembly; and a limiting cover is covered and buckled on the lug boss.
4. The screw dismounting device for the escalator roller according to claim 3, wherein the inner edge of the cover opening of the limit cover is provided with internal threads, and the outer side wall of the boss is provided with external threads; the limiting cover is in threaded fit with the boss.
5. The screw dismounting device for the escalator roller according to claim 1, wherein an avoiding groove is formed in the bottom surface of the circular groove structure and used for avoiding the roller mounting structure on the escalator, so that the two bases can be oppositely spliced from the two sides of the roller and wrap the roller therein.
6. The screw removing device for the escalator roller according to claim 1, wherein the first base is provided with a first handle; and a second handle is arranged on the cover body.
7. The screw removing device for escalator rollers as claimed in claim 1, wherein a backing ring is disposed between the inner surface of the circular groove structure and the outer surface of the roller; the outer diameter of the backing ring is the same as the inner diameter of the circular groove structure, and the inner diameter of the backing ring is the same as the outer diameter of the roller.
8. The screw removing device for the escalator roller as claimed in claim 1, wherein the removing component is one of a hexagonal key, a triangular key, a flat screwdriver and a quincuncial screwdriver.
9. The screw dismounting device for the escalator roller according to claim 1, wherein the first base and the second base are of a central symmetrical structure; a protruding key and an embedding groove are arranged on the butt joint edge of any one base; the two bases are spliced relatively to enable the two butt joint edges to be attached to each other, the protruding key on the first base is matched with the embedded groove on the second base, and the protruding key on the second base is matched with the embedded groove on the first base.
10. A screw removing method for an escalator roller, comprising the screw removing device for an escalator roller according to claim 1, characterized by comprising the steps of:
s1: the first base and the second base are sleeved from two sides of the roller, the first base and the second base are spliced to form a circular groove structure, the roller is wrapped in the circular groove, and the side wall of the roller, on one side of which the screw cap is located, is exposed in the range of a notch of the circular groove structure;
s2: firstly, fixing the disassembling component in the upper cover, and then buckling the upper cover at the notch of the circular groove structure formed by the two bases; in the buckling process, the disassembling component corresponds to the screw with the same axial lead, and the disassembling end of the disassembling component is embedded into the groove on the screw cap for matching;
s3: the two bases and the cover body rotate synchronously, so that the rollers, the screws and the dismounting assemblies inside the two bases and the cover body rotate synchronously along the coaxial line, the screws are dismounted from the mounting position of the escalator, and the rollers are separated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010895425.9A CN111890308B (en) | 2020-08-31 | Screw dismounting device and method for escalator roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010895425.9A CN111890308B (en) | 2020-08-31 | Screw dismounting device and method for escalator roller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111890308A true CN111890308A (en) | 2020-11-06 |
| CN111890308B CN111890308B (en) | 2024-09-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113510659A (en) * | 2021-08-04 | 2021-10-19 | 长沙航空职业技术学院 | Screw disassembling tool and using method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010119312A1 (en) * | 2009-04-17 | 2010-10-21 | Toyota Jidosha Kabushiki Kaisha | Pulley |
| CN102672645A (en) * | 2012-04-28 | 2012-09-19 | 苏州光福冶金铸造有限责任公司 | Socket spanner |
| DE102012106302B3 (en) * | 2012-07-12 | 2014-02-27 | Model Research International Co., Ltd. | Device for removing metal servo horns for spline shaft coupling, used in vehicle, has screw that is contacted with concave lower edge of oblong hole and rotated against clockwise direction, for producing lifting force during rotation |
| JP2015151198A (en) * | 2014-02-10 | 2015-08-24 | 三菱電機ビルテクノサービス株式会社 | Oil level gauge removal jig for hydraulic elevator |
| CN212399450U (en) * | 2020-08-31 | 2021-01-26 | 广州广日电梯工业有限公司 | Screw dismounting device for escalator roller |
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010119312A1 (en) * | 2009-04-17 | 2010-10-21 | Toyota Jidosha Kabushiki Kaisha | Pulley |
| CN102672645A (en) * | 2012-04-28 | 2012-09-19 | 苏州光福冶金铸造有限责任公司 | Socket spanner |
| DE102012106302B3 (en) * | 2012-07-12 | 2014-02-27 | Model Research International Co., Ltd. | Device for removing metal servo horns for spline shaft coupling, used in vehicle, has screw that is contacted with concave lower edge of oblong hole and rotated against clockwise direction, for producing lifting force during rotation |
| JP2015151198A (en) * | 2014-02-10 | 2015-08-24 | 三菱電機ビルテクノサービス株式会社 | Oil level gauge removal jig for hydraulic elevator |
| CN212399450U (en) * | 2020-08-31 | 2021-01-26 | 广州广日电梯工业有限公司 | Screw dismounting device for escalator roller |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113510659A (en) * | 2021-08-04 | 2021-10-19 | 长沙航空职业技术学院 | Screw disassembling tool and using method thereof |
| CN113510659B (en) * | 2021-08-04 | 2022-07-22 | 长沙航空职业技术学院 | Screw disassembling tool and using method thereof |
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