CN211733552U - Elevator door change gear - Google Patents
Elevator door change gear Download PDFInfo
- Publication number
- CN211733552U CN211733552U CN202020065725.XU CN202020065725U CN211733552U CN 211733552 U CN211733552 U CN 211733552U CN 202020065725 U CN202020065725 U CN 202020065725U CN 211733552 U CN211733552 U CN 211733552U
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- CN
- China
- Prior art keywords
- change gear
- gear body
- tire bead
- elevator door
- polyurethane tire
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model relates to a lift-cabin door change gear, including the change gear body, change gear body periphery is equipped with wheel hub, wheel hub is provided with the polyurethane tire bead, the interior week of change gear body is equipped with antifriction bearing, its characterized in that, wheel hub is equipped with the first installation face of symmetric distribution in change gear body both sides, the transversal law echelonment of personally submitting of first installation face, first installation face is equipped with first inserting groove along change gear body the central axis direction, be connected with second installation face between the first installation face, be equipped with the second inserting groove in the second installation face, the polyurethane tire bead is equipped with the grafting strip corresponding to the second inserting groove, the beneficial effects of the utility model are that: the elevator door change gear is simple in structure and high in adhesive force between the polyurethane tire bead and the metal hub.
Description
Technical Field
The utility model relates to an elevator accessory technical field, concretely relates to lift-cabin door change gear.
Background
With the mass construction of modern high buildings, the use of elevators is more and more extensive, so that the requirements on the change gear used on an elevator door system are higher and higher; the change gear for the elevator door is used for guiding and bearing the elevator door to move, and is rotatably fixed on the elevator door under the general condition, and the change gear rolls along a preset track through a track groove around the change gear, so that the elevator door is stably opened and closed; and the adhesion ratio of the polyurethane tire bead of the door hanging wheel to the metal hub is poorer.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that not enough to above-mentioned prior art provides an elevator door change gear, simple structure, and polyurethane tire bead and metal wheel hub adhesion are stronger.
In order to achieve the above purpose, the utility model provides a following technical scheme: the elevator door change gear comprises a change gear body, wherein a wheel hub is arranged on the outer periphery of the change gear body, a polyurethane tire bead is arranged on the wheel hub, and a rolling bearing is arranged on the inner periphery of the change gear body.
By adopting the technical scheme, most of the mounting surfaces of the hub and the polyurethane tire bead in the prior art are arc-shaped, the central position of the polyurethane tire bead is easy to deviate due to the fact that the change gear is in a pressed state in a working state, the polyurethane tire bead is easy to deform along the arc-shaped surface to two sides, the first mounting surface is designed into a step shape, each wall of the step shape limits the position of the polyurethane tire bead, the central position deviation of the polyurethane tire bead can be avoided, and the normal operation of the change gear body is guaranteed; the first inserting groove is formed in the first mounting surface along the central axis direction of the change gear body, and the change gear is in a rolling state in a working state, so that the polyurethane tire bead is easy to wear after long-time use and is easy to be driven by friction force to deviate along the circumferential direction of the outer circle of the hub; the second inserting groove arranged in the second mounting surface is matched with the inserting strip of the polyurethane tire bead layer, so that the polyurethane tire bead can be bonded on the wheel hub, the whole structure is simple, and the bonding force of the polyurethane tire bead and the metal wheel hub is enhanced.
The elevator door change gear can be further configured as follows: and a magnet layer is arranged in the middle of the polyurethane tire bead, and a magnet block is fixedly arranged in the second insertion groove.
By adopting the technical scheme, the magnet layer and the magnet block are mutually attracted, the adhesive force between the polyurethane tire bead and the hub is further enhanced, and the polyurethane tire bead and the hub are prevented from loosening.
The elevator door change gear can be further configured as follows: the two side surfaces of the change gear body are provided with a plurality of groups of vertical reinforcing ribs which are distributed outwards by taking the circle center of the change gear body as the midpoint, and the vertical reinforcing ribs are annularly provided with annular reinforcing ribs by taking the circle center of the change gear body as the midpoint.
By adopting the technical scheme, the change gear is in a pressed state in a working state, and the deformation resistance of the change gear body is enhanced by designing the vertical reinforcing ribs and the annular reinforcing ribs, so that the service life of the change gear body is prolonged.
The elevator door change gear can be further configured as follows: and the inner periphery of the change gear body is provided with a stop block for limiting the rolling bearing.
By adopting the technical scheme, the stop block can limit the rolling bearing, so that the rolling bearing is prevented from falling off.
The elevator door change gear can be further configured as follows: the surface of the polyurethane tire bead is coated with a fireproof wear-resistant layer.
By adopting the technical scheme, the fireproof wear-resistant layer enhances the wear-resistant performance of the polyurethane tire bead and prolongs the service life of the polyurethane tire bead.
The utility model has the advantages that: the elevator door hanging wheel is simple in structure, the polyurethane tire bead and the metal hub are high in bonding force, the first mounting surface is designed into a step shape, the first inserting groove is formed in the first mounting surface along the central axis direction of the hanging wheel body, the central position deviation of the polyurethane tire bead can be avoided, the normal operation of the hanging wheel body is guaranteed, the deviation of the polyurethane tire bead along the circumferential direction of the outer circle of the hub is avoided, the second inserting groove formed in the second mounting surface is matched with the inserting strip of the polyurethane tire bead layer, the polyurethane tire bead can be bonded on the hub, the overall structure is simple, and the bonding force of the polyurethane tire bead and the metal hub is enhanced.
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Drawings
Fig. 1 is a schematic cross-sectional view of an embodiment of the present invention;
fig. 2 is a left side view of the embodiment of the present invention;
fig. 3 is a schematic top view of an embodiment of the present invention.
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.
The elevator door hanging wheel as shown in fig. 1 to 3 comprises a hanging wheel body 1, wherein a wheel hub 2 is arranged on the outer periphery of the hanging wheel body 1, a polyurethane tire bead 4 is arranged on the wheel hub 2, a rolling bearing 3 is arranged on the inner periphery of the hanging wheel body 1, first mounting surfaces 21 are symmetrically distributed on two sides of the hanging wheel body 1, the cross section of each first mounting surface 21 is in a regular step shape, a first inserting groove 22 is formed in each first mounting surface 21 along the central axis direction of the hanging wheel body 1, a second mounting surface 23 is connected between the first mounting surfaces 21, a second inserting groove 24 is formed in each second mounting surface 23, an inserting strip 41 is arranged on each polyurethane tire bead 4 corresponding to each second inserting groove 24, a magnet layer 42 is arranged in the middle of each polyurethane tire bead 4, a magnet block 43 is fixedly arranged in each second inserting groove 24, and a fireproof wear-resistant layer 44 is coated on the surface of each polyurethane tire bead 4, the two side surfaces of the change gear body 1 are provided with a plurality of groups of vertical reinforcing ribs which are distributed outwards by taking the circle center of the change gear body 1 as the midpoint, the vertical reinforcing ribs are annularly provided with annular reinforcing ribs 12 taking the circle center of the change gear body 1 as the midpoint, and the inner periphery of the change gear body 1 is provided with a stop block 13 for limiting the rolling bearing 3.
Claims (5)
1. The utility model provides an elevator door change gear, includes the change gear body, change gear body periphery is equipped with wheel hub, wheel hub is provided with the polyurethane tire bead, the internal periphery of change gear body is equipped with antifriction bearing, its characterized in that: the wheel hub is provided with first mounting surfaces which are symmetrically distributed on two sides of the change gear body, the cross section of each first mounting surface is in a regular step shape, the first mounting surfaces are provided with first inserting-connecting grooves along the central axis direction of the change gear body, a second mounting surface is connected between the first mounting surfaces, second inserting-connecting grooves are formed in the second mounting surfaces, and inserting-connecting strips are arranged on the polyurethane tire beads corresponding to the second inserting-connecting grooves.
2. The elevator door sheave of claim 1, wherein: and a magnet layer is arranged in the middle of the polyurethane tire bead, and a magnet block is fixedly arranged in the second insertion groove.
3. The elevator door sheave of claim 1, wherein: the two side surfaces of the change gear body are provided with a plurality of groups of vertical reinforcing ribs which are distributed outwards by taking the circle center of the change gear body as the midpoint, and the vertical reinforcing ribs are annularly provided with annular reinforcing ribs by taking the circle center of the change gear body as the midpoint.
4. The elevator door sheave of claim 1, wherein: and the inner periphery of the change gear body is provided with a stop block for limiting the rolling bearing.
5. The elevator door sheave of claim 1, wherein: the surface of the polyurethane tire bead is coated with a fireproof wear-resistant layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020065725.XU CN211733552U (en) | 2020-01-13 | 2020-01-13 | Elevator door change gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020065725.XU CN211733552U (en) | 2020-01-13 | 2020-01-13 | Elevator door change gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211733552U true CN211733552U (en) | 2020-10-23 |
Family
ID=72880677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020065725.XU Active CN211733552U (en) | 2020-01-13 | 2020-01-13 | Elevator door change gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211733552U (en) |
-
2020
- 2020-01-13 CN CN202020065725.XU patent/CN211733552U/en active Active
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