CN205932864U - Change spur gear of elevator door - Google Patents
Change spur gear of elevator door Download PDFInfo
- Publication number
- CN205932864U CN205932864U CN201620655212.8U CN201620655212U CN205932864U CN 205932864 U CN205932864 U CN 205932864U CN 201620655212 U CN201620655212 U CN 201620655212U CN 205932864 U CN205932864 U CN 205932864U
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- wheel hub
- spur gear
- elevator door
- bearing
- groove
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Abstract
The utility model provides a change spur gear of elevator door, include wheel hub, be located the inboard bearing of wheel hub and be located the inboard center pin of bearing, wheel hub is equipped with annular wall, and this annular wall is equipped with internal face, outer wall and connects two sides of inside and outside wall, polyurethane tire bead layer in being equipped with the recess on the outer wall and locating the recess, the notch outside -in of recess narrows down gradually, injection moulding is passed through on polyurethane tire bead layer mode formed at in the recess. Compared with the prior art, the utility model discloses change spur gear of elevator door adopts the shooting technique, and more traditional pouring technology equipment, material and cost of labor are all lower, and production efficiency is higher, and the product polyurethane tire bead layer and the metal wheel hub adhesion stress that make are good, and the height bears down the dynamic behavior excellence.
Description
Technical field
This utility model is related to elevator technology field, more particularly, to a kind of change spur gear of elevator door.
Background technology
Change spur gear of elevator door is mainly used in lift elevator door switch action guiding, and it passes through the unlatching of scrolling realization elevator door
Or closing, at present, production door change gear main technique is pouring technology, and pouring technology has many deficiencies, its equipment investment height,
Energy consumption is big, working condition is required harsh, and casting type polyurethane storage period and function effectiveness were limited by certain time,
Raw material cure cycle is longer to lead to continuous production difference it is necessary to wait until that a collection of product just can carry out next group after the completion of solidifying and pour
Note produces, and cost of labor is higher, if using traditional Shooting Technique and mould instead, will be unable to obtain the special construction of a change gear, and
Produce a large amount of leftover pieces in production process, cause to waste, the polyurethane tyre bead layer of door change gear and metal wheel hub cohesive force also compare
Difference.
Utility model content
The technical problem that this utility model is solved is to provide a kind of change spur gear of elevator door.
For solving above-mentioned technical problem, this utility model adopts a kind of change spur gear of elevator door, including wheel hub, is located inside wheel hub
Bearing and be located at central shaft inside described bearing, described wheel hub is provided with annular wall, and this annular wall is provided with internal face, outer
Wall and two sides connecting inside and outside wall, described outside wall surface is provided with groove and the polyurethane tyre bead layer in groove,
The notch ecto-entad of described groove becomes narrow gradually, and described polyurethane tyre bead layer is formed at described recessed by way of injection mo(u)lding
In groove.
Further, described polyurethane tyre bead layer is covered with the bottom land of whole groove, and is provided with a concave surface caving inward, institute
State concave surface curved and less than described groove notch.
Further, described wheel hub is rounded, and it is provided with the through hole inside annular wall, and described internal face is around institute
The surrounding stating through hole is to contact with described bearing fit, and is additionally provided with the location division inwardly protruding out on described internal face.
Further, described location division protrudes in described through hole, and keeps out in the side of described bearing.
Further, one end of described central shaft flushes setting with the side of described bearing, the other end protrude out described in
The opposite side of heart axle and protrude out the side of described wheel hub further.
Compared with prior art, this utility model change spur gear of elevator door adopts Shooting Technique, for more traditional pouring technology
Equipment, material and cost of labor are all lower, and production efficiency is higher, and prepared product polyurethane tyre bead layer and metal wheel hub bond
Power is excellent, and excellent dynamic performance under high-mechanic.
Brief description
Fig. 1 is the structural representation of change spur gear of elevator door described in the utility model.
Fig. 2 is the production injection mold structure sketch of change spur gear of elevator door described in the utility model.
Specific embodiment
Refer to shown in Fig. 1, this utility model provides a kind of change spur gear of elevator door, it includes wheel hub 10, is located in wheel hub 10
The bearing 20 of side and the central shaft 30 being located at described bearing 20 inner side.
Wherein, described wheel hub 10 is rounded, its through hole 12 being provided with annular wall 11 and being located at annular wall 11 inner side, described ring
Shape wall 11 is provided with two sides 15 of wall 14 inside and outside internal face 13, outside wall surface 14 and connection, and described internal face 13 is around institute
State the surrounding of through hole 12, and internal face 13 is contacted with the cooperation of described bearing 20, and be provided with the location division 16 inwardly protruding out, described
Location division 16 protrudes in described through hole 12, and keeps out in the side of described bearing 20, can prevent bearing 20 from detaching to side
In described through hole 12；Described outside wall surface 14 is provided with groove 17, and described groove 17 is wide outside and narrow inside, and it is inside from the notch of groove 17
Become narrow gradually；Described side 15 is located at the both sides of described groove 17, the described two side of described through hole 12 insertion 15.It is worth mentioning
, it is provided with polyurethane tyre bead layer 18 in groove 17 described in the utility model, this polyurethane tyre bead layer 18 is covered with whole groove 17
Bottom land, and be provided with a concave surface 19 caving inward, described concave surface 19 is curved and notch less than described groove 17.
Wherein, described bearing 20 is installed in the through hole 12 of described wheel hub 10 inner side, and the side of bearing 20 is by described
The effect of location division 16 and spacing, described bearing 20 includes internal ring 21, outer shroud 22 and is located at rolling between internal ring 21 and outer shroud 22
Pearl 23, described outer shroud 22 is connected on the internal face 13 of described wheel hub 10, and described internal ring 21 inner side forms and accommodates described central shaft
30 axis hole, relatively rotating of inner and outer rings 22 realized between internal ring 21 and outer shroud 22 by described ball 23.
Wherein, described central shaft 30 is installed in the axis hole of described bearing 20 inner side, and the bearing of trend of central shaft 30 hangs down
Directly in the two sides 15 of described wheel hub 10, one end of described central shaft 30 flushes setting, the other end with the side of described bearing 20
Protrude out the opposite side of described central shaft 30, and protrude out the side 15 of described wheel hub 10 further.During described central shaft 30 is
Hollow structure.
In addition, this utility model is also disclosed a kind of change spur gear of elevator door production method, it adopts injection mo(u)lding, this production method
Specifically include following steps：
Step one：Clean described wheel hub 10 surface, then carry out polishing process；
Step 2：Pre- glue spraying is processed, and is then dried process；
Step 3：Preheating wheel hub 10, and be placed in injection mold；
Step 4：Liquid polyurethane is injected in injection mold, makes polyurethane stream in injection mold become tyre bead shape simultaneously
It is bonded on metal wheel hub 10；
Step 5：Maturation process；
Step 6：Bearing 20 and central shaft 30 are loaded inside wheel hub 10, obtains a change gear finished product.
Wherein, in step one, " cleaning described wheel hub 10 surface, then carry out blast " refers to：To wheel hub 10 glue spraying
Face carries out cleaning by degreasing, then carries out blast process to glue spraying face again.Using quartz sand when described blast is processed.
Wherein, in step 2, " pre- glue spraying is processed, and is then dried process " refers to：Binding agent is sprayed on wheel hub 10
On glue spraying face, then wheel hub 10 is placed in humidity less than 75%, 2-3 hour in the environment for 5-30 DEG C for the temperature, obtain dried wheel
Hub 10.In this utility model preferred embodiment, described adhesive has higher active temperature, still has at 200-210 DEG C
There is the reactivity of certain time, can be combined with polyurethane well, and form excellent cohesive force after the cooling period.
Wherein, in step 3, " preheating wheel hub 10, and be placed in injection mold " refer to：The wheel that step 2 is obtained
Hub 10 is placed in the preheating carrying out 2-10 hour at a temperature of 110-120 DEG C, then wheel hub 10 is put in injection mold, and makes injection mould
Jiao Kou in tool is corresponding with the glue spraying face of wheel hub 10.
Wherein, in step 4, " liquid polyurethane is injected in injection mold, makes polyurethane stream in injection mold become tire
Loop-shaped is simultaneously bonded on metal wheel hub 10, then takes out wheel hub 10 " refer to：Using casting machine screw rod, liquid polyurethane is injected
In glue mouth in described injection mold, and keep multiple Jiao Kou to enter glue simultaneously, so that polyurethane around the surrounding of wheel hub 10 and is bonded
On the glue spraying face of wheel hub 10；After the glue spraying face of polyurethane and metal wheel hub 10 mutually bonds the 50-60 second, from injection mold
Take out wheel hub 10.
Wherein, in step 5, " maturation process " refers to：Wheel hub 10 is put into 10-16 hour in 80-100 DEG C of baking oven.
In order to preferably realize injection mo(u)lding polyurethane tyre bead so as to form high cohesive force and between metal wheel hub 10, and again
Be not in tyre bead burn, the bad defect such as serious of shrinking, the liquid in this utility model preferred embodiment, in described step 4
State polyurethane Shooting Technique adopts staged operation, injection temperature, injection pressure in each section of technological parameter（Or injection speed）、
Dwell pressure is different from, specific as follows：
Injection temperature：First paragraph heating-up temperature 190-200 DEG C（Preferably 196 DEG C）, second segment heating-up temperature 205-210 DEG C
（Preferably 208 DEG C）, the 3rd section of heating-up temperature 210-220 DEG C（Preferably 215 DEG C）, the 4th section of heating-up temperature 190-200 DEG C（Preferably
194℃）, the 5th section of heating-up temperature 200-210 DEG C（Preferably 205 DEG C）.
Injection pressure：First paragraph injection pressure 25%, second segment injection pressure 25%, the 3rd section of injection pressure 20%.
Dwell pressure：First paragraph dwell pressure 115-125bar（Preferably 120bar）, second segment dwell pressure 100-
110bar（Preferably 105bar）.
In order to meet the requirement of above-mentioned Shooting Technique, in this utility model preferred embodiment, also provide a kind of new injection
Mould, it is twice parting mould, and enters glue mode using 3 points, as shown in Fig. 2 this injection mold has three circumferentially sides
To equally distributed Jiao Kou, these three glue causes for gossip now injecting glue simultaneously, polyurethane tyre bead is formed with the circumferencial direction in wheel hub 10.
To sum up, this utility model adopts Shooting Technique to replace traditional pouring technology next life vaginal orifice change gear, can make polyurethane
Tyre bead layer 18 and metal wheel hub 10 cohesive force are excellent, and excellent dynamic performance under high-mechanic, and the equipment cost that technique adopts is low, material
Material cost and cost of labor are low, and production efficiency is high, and product yield is high, stable performance.
The above, be only most preferred embodiment of the present utility model, not this utility model is made any formal
Restriction, any those of ordinary skill in the art, without departing under technical solutions of the utility model ambit, using above-mentioned
The method content disclosing makes many possible variations and modification to technical solutions of the utility model, belongs to claims and protects
The scope of shield.
Claims (5)
1. a kind of change spur gear of elevator door, including wheel hub, is located at the bearing inside wheel hub and is located at the center inside described bearing
It is characterised in that described wheel hub is provided with annular wall, this annular wall is provided with internal face, outside wall surface and connect inside and outside wall two to axle
Individual side, described outside wall surface is provided with groove and the polyurethane tyre bead layer in groove, the notch ecto-entad of described groove
Become narrow gradually, described polyurethane tyre bead layer is formed in described groove by way of injection mo(u)lding.
2. change spur gear of elevator door according to claim 1 it is characterised in that：Described polyurethane tyre bead layer is covered with whole groove
Bottom land, and be provided with a concave surface caving inward, described concave surface is curved and notch less than described groove.
3. change spur gear of elevator door according to claim 2 it is characterised in that：Described wheel hub is rounded, and it is provided with positioned at annular
Through hole inside wall, described internal face around described through hole surrounding to contact with described bearing fit, and described internal face
On be additionally provided with the location division inwardly protruding out.
4. change spur gear of elevator door according to claim 3 it is characterised in that：Described location division protrudes in described through hole, and
Keep out in the side of described bearing.
5. change spur gear of elevator door according to claim 4 it is characterised in that：One end of described central shaft and the one of described bearing
Side flushes setting, and the other end protrudes out the opposite side of described central shaft and protrudes out the side of described wheel hub further.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620655212.8U CN205932864U (en) | 2016-06-28 | 2016-06-28 | Change spur gear of elevator door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620655212.8U CN205932864U (en) | 2016-06-28 | 2016-06-28 | Change spur gear of elevator door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205932864U true CN205932864U (en) | 2017-02-08 |
Family
ID=57930633
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620655212.8U Active CN205932864U (en) | 2016-06-28 | 2016-06-28 | Change spur gear of elevator door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205932864U (en) |
-
2016
- 2016-06-28 CN CN201620655212.8U patent/CN205932864U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |