CN203656061U - Reduction gearbox for door closer - Google Patents
Reduction gearbox for door closer Download PDFInfo
- Publication number
- CN203656061U CN203656061U CN201320664233.2U CN201320664233U CN203656061U CN 203656061 U CN203656061 U CN 203656061U CN 201320664233 U CN201320664233 U CN 201320664233U CN 203656061 U CN203656061 U CN 203656061U
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- CN
- China
- Prior art keywords
- gearwheel
- gear
- door closer
- speed reducer
- housing
- Prior art date
- 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.)
- Expired - Lifetime
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Abstract
The utility model relates to a reduction gearbox for a door closer. The reduction gearbox comprises a shell, wherein a group of reduction gears are mounted in the shell, and are in meshed transmission with one another; each reduction gear comprises a gearwheel, a pinion and an axle sleeve used for connecting the gearwheel with the pinion; adjacent reduction gears are meshed with each other through the gearwheel and the pinions; the pinions are metal gears; the gearwheels are plastic gears. The reduction gearbox has the advantages that the structure is firm; the machining is simple and convenient; the cost is low; no auxiliary position fixing part is needed; as in the housing, a metal endless screw is matched with a plastic bevel wheel, and the metal pinions are matched with the plastic gearwheels, the coefficient of wear as well as the noise is low; as the plastic gears adopt mould formation, the processing technology is mature, and the cost is low.
Description
Technical field
The utility model relates to a kind of speed reducer, especially a kind of for the speed reducer on door closer.
Background technique
Door closer is widely used on various doors, door closer is generally to drive rocking arm to rotate by motor; rocking arm drives the keying of door; motor need to be installed the speed reducer motor-driven speed that slows down; and gear in current speed reducer is in the process of transmission, and because gear is metallic material, in the process of phase mutual friction, easily sounding rings; and metal gear causes the quality of speed reducer very heavy, and the cost of cost is also high.
Model utility content
The utility model will solve the shortcoming of above-mentioned prior art, and a kind of door closer speed reducer is provided, reasonable in design, adopts plastic gear and metal gear to match, and reduces noise and wearing and tearing, and structure is installed easily simple.
The utility model solves the technological scheme that its technical problem adopts: this door closer speed reducer, comprise housing, the reduction gear of one group of intermeshing transmission is installed in housing, reduction gear comprises the axle sleeve of gearwheel, small gear and connection gearwheel, small gear, reduction gear between adjacent engages with gearwheel by small gear, small gear is the metal gear of metallic support, and gearwheel is the plastic gear that plastics are made.Between this reduction gear, adopt plastic gear to coordinate with metal gear, so not only reduce noise, and reduced wearing and tearing.Because small gear is stressed larger, therefore adopt metal, guarantee like this intensity that it is enough, and the relative small gear of gearwheel is stressed less, and volume is large, causes Heavy Weight, therefore adopts plastic gear, weight reduction, and reduce costs.
For further perfect, reduction gear horizontal cross is distributed in housing, end in housing is provided with plastic beveled wheel, plastic beveled wheel is provided with the metal straight toothed portion and the plastics helical teeth part that engage with gearwheel in reduction gear, and on housing right side, having the opening for packing metal worm screw into, metal worm screw engages with plastics helical teeth part.This speed reducer designs for door closer structure, and by the distribution in a row reduction gear in speed reducer, and motor is arranged on one end of speed reducer, is applicable to like this shape of door closer.
Housing is divided into upper shell and lower shell body, and the periphery of upper shell is interval with raised step, and the periphery of lower shell body has the concave surface for snapping in raised step.Be convenient to upper shell like this and lower shell body is located mutually, be convenient to install, and play certain reinforcement effect.
Raised step on upper shell is provided with the extension of extending along upper shell madial wall, and extension and raised step are structure as a whole and are protruding structure.This structural strengthening the soundness of upper shell structure.
The inner top surface of upper shell is respectively equipped with the corresponding mounting groove of upper-lower position with the inner bottom surface of lower shell body, and the two ends of axle sleeve are separately installed with bearing, and bearing is fixed in mounting groove.Easy for installation like this, can quick mounting reduction gear.
The trough body structure that mounting groove is surrounded by a circle projection, the periphery of projection is provided with the stiffening rib extending to sidewall.This cell body does not adopt the mode of grooving, but adopts protruding structure to surround cell body, has strengthened the firm of structure, and stiffening rib is set, and makes its structure more firm.
Gearwheel is the nylon gear that nylon is made.Gearwheel, except plastics, also can adopt the material such as nylon, rubber to make, and also has that good prison is made, wear-resisting effect, and nylon also has the effect from profit.
The effect that the utility model is useful is: the utility model sound construction, process easy, cost is low, and without other auxiliary positioning parts, shell in-vivo metal worm screw is joined plastic beveled wheel, adopt metal small gear to join plastics gearwheel, the coefficient of waste is little, and noise is little, and plastic gear adopts mould-forming, processing technology maturation, with low cost.
Accompanying drawing explanation
Fig. 1 is internal structure schematic diagram of the present utility model;
Fig. 2 is the structural representation that the utility model removes housing;
Fig. 3 is the structural representation of upper shell in the utility model;
Fig. 4 is the structural representation of lower shell body in the utility model.
Description of reference numerals: housing 1, opening 1-1, reduction gear 2, gearwheel 2-1, small gear 2-2, axle sleeve 2-3, plastic beveled wheel 3, metal straight toothed portion 3-1, plastics helical teeth part 3-2, metal worm screw 4, upper shell 5, raised step 5-1, extension 5-2, lower shell body 6, concave surface 6-1, mounting groove 7, protruding 7-1, bearing 8, stiffening rib 9, motor 10.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
With reference to accompanying drawing: this door closer speed reducer, comprise housing 1, the reduction gear 2 of one group of intermeshing transmission of the interior installation of housing 1, reduction gear 2 comprises gearwheel 2-1, small gear 2-2 and the axle sleeve 2-3 that is connected gearwheel 2-1, small gear 2-2, reduction gear 2 between adjacent engages with gearwheel 2-1 by small gear 2-2, small gear 2-2 is the metal gear of metallic support, and gearwheel 2-1 is the plastic gear that plastics are made.Reduction gear 2 horizontal cross are distributed in housing 1, end in housing 1 is provided with plastic beveled wheel 3, plastic beveled wheel 3 is provided with the metal straight toothed portion 3-1 and the plastics helical teeth part 3-2 that engage with gearwheel 2-1 in reduction gear 2, and on housing 1 right side, having the opening 1-1 for packing metal worm screw 4 into, metal worm screw 4 engages with plastics helical teeth part 3-2.
The metal worm screw 4 that motor 10 drives is inserted in one end of housing 1, metal worm screw 4 coordinates with plastic beveled wheel 3, plastic beveled wheel 3 coordinates transmission to reduction gear 2 metal worm screw 4 in vertical direction, and reduction gear 2 has multiple, coordinates transmission by metal small gear 2-2 with plastics gearwheel 2-1.Reduction gear 2 is fixed by the bearing 8 that is arranged on axle sleeve 2-3 two ends, and bearing 8 is fixed in the mounting groove 7 in upper and lower casing, and mounting groove 7 adopts the structure of a circle projection 7-1 to surround, and is conducive to strengthen the soundness of structure.Gearwheel, except plastics, also can adopt the material such as nylon, rubber to make.
Although the utility model illustrates and describes by reference to preferred embodiment,, those skilled in the art should understand, and in the scope of claims, can do the various variation in form and details.
Claims (7)
1. a door closer speed reducer, comprise housing (1), the reduction gear (2) of one group of intermeshing transmission is installed in housing (1), it is characterized in that: described reduction gear (2) comprises gearwheel (2-1), small gear (2-2) and is connected the axle sleeve (2-3) of gearwheel (2-1), small gear (2-2), adjacent reduction gear (2) engages with gearwheel (2-1) by small gear (2-2), the metal gear that described small gear (2-2) is metallic support, the plastic gear that described gearwheel (2-1) is made for plastics.
2. door closer speed reducer according to claim 1, it is characterized in that: described reduction gear (2) horizontal cross is distributed in housing (1), end in housing (1) is provided with plastic beveled wheel (3), plastic beveled wheel (3) is provided with the metal straight toothed portion (3-1) and the plastics helical teeth part (3-2) that engage with gearwheel (2-1) in reduction gear (2), and on housing (1) right side, having the opening (1-1) for packing metal worm screw (4) into, metal worm screw (4) engages with plastics helical teeth part (3-2).
3. door closer speed reducer according to claim 1 and 2, it is characterized in that: described housing (1) is divided into upper shell (5) and lower shell body (6), the periphery of upper shell (5) is interval with raised step (5-1), and the periphery of described lower shell body (6) has the concave surface (6-1) for snapping in raised step (5-1).
4. door closer speed reducer according to claim 3, it is characterized in that: the raised step (5-1) on described upper shell (5) is provided with the extension (5-2) of extending along upper shell (5) madial wall, extension (5-2) is structure as a whole and is protruding structure with raised step (5-1).
5. door closer speed reducer according to claim 3, it is characterized in that: the inner top surface of described upper shell (5) is respectively equipped with the corresponding mounting groove of upper-lower position (7) with the inner bottom surface of lower shell body (6), the two ends of described axle sleeve (2-3) are separately installed with bearing (8), and bearing (8) is fixed in mounting groove (7).
6. door closer speed reducer according to claim 5, is characterized in that: the trough body structure that described mounting groove (7) is surrounded by a circle projection (7-1), the periphery of projection (7-1) is provided with the stiffening rib (9) extending to sidewall.
7. door closer speed reducer according to claim 1, is characterized in that: the nylon gear that described gearwheel (2-1) is made for nylon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320664233.2U CN203656061U (en) | 2013-10-28 | 2013-10-28 | Reduction gearbox for door closer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320664233.2U CN203656061U (en) | 2013-10-28 | 2013-10-28 | Reduction gearbox for door closer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203656061U true CN203656061U (en) | 2014-06-18 |
Family
ID=50922451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320664233.2U Expired - Lifetime CN203656061U (en) | 2013-10-28 | 2013-10-28 | Reduction gearbox for door closer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203656061U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107269769A (en) * | 2017-08-04 | 2017-10-20 | 唐郁 | The miniature plastic cement gear reduction box of adjustable speed reducing ratio torsion-adjustable |
| CN110173346A (en) * | 2018-02-21 | 2019-08-27 | 博格华纳公司 | Gear-driven assembly for actuator system |
| CN110238799A (en) * | 2018-03-07 | 2019-09-17 | 苏州宝时得电动工具有限公司 | Electric hammer |
| CN112741516A (en) * | 2019-10-30 | 2021-05-04 | 青岛汉尚电器有限公司 | Multifunctional dough kneading integrated machine |
-
2013
- 2013-10-28 CN CN201320664233.2U patent/CN203656061U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107269769A (en) * | 2017-08-04 | 2017-10-20 | 唐郁 | The miniature plastic cement gear reduction box of adjustable speed reducing ratio torsion-adjustable |
| CN110173346A (en) * | 2018-02-21 | 2019-08-27 | 博格华纳公司 | Gear-driven assembly for actuator system |
| CN110238799A (en) * | 2018-03-07 | 2019-09-17 | 苏州宝时得电动工具有限公司 | Electric hammer |
| CN112741516A (en) * | 2019-10-30 | 2021-05-04 | 青岛汉尚电器有限公司 | Multifunctional dough kneading integrated machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |