CN2713223Y - Worm-helical gear speed reducer - Google Patents
Worm-helical gear speed reducer Download PDFInfo
- Publication number
- CN2713223Y CN2713223Y CN 200420066869 CN200420066869U CN2713223Y CN 2713223 Y CN2713223 Y CN 2713223Y CN 200420066869 CN200420066869 CN 200420066869 CN 200420066869 U CN200420066869 U CN 200420066869U CN 2713223 Y CN2713223 Y CN 2713223Y
- Authority
- CN
- China
- Prior art keywords
- blind hole
- link
- helical gear
- worm screw
- mechanical component
- 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 - Fee Related
Links
Images
Landscapes
- Gear Transmission (AREA)
Abstract
The utility model discloses a worm-helical gear speed reducer, comprising an endless screw (4). The endless screw is sequentially provided with a first shaft (5) and a beveled wheel (6) arranged on a second shaft (7). The endless screw (4) is connected with the beveled wheel (6). The first end (9) of the first shaft (5) is provided with a blind hole (10). The endless screw (4) and a machine element of a drive unit are connected at the blind hole (10). The speed reducer (1) is characterized in that the blind hole (10) is a reference hole applicable to the diameter of the given series of the machine element. In addition, a connecter (14) is arranged between the blind hole (10) and the machine element. Moreover, a speed pre-reduction step is fixed on the connecter (14).
Description
Technical field
The utility model relates to a kind of worm screw-helical gear reducer.
Background technique
As everyone knows, utilize worm screw-helical gear transmission can the inclination quadrature the axle between transmitting movement.Worm screw comprises one, has blind hole on this a end, is used for ccontaining mechanical component, worm screw can be connected in driver element by this mechanical component; And blind hole need be formed with a series of diameters of IEC standard 72 regulations, and is connected with the mechanical component of driver element usually.
The major defect of this type retarder is, the diameter of the mechanical component of driver element may with the retarder Reference diameter of being produced in any is not all corresponding, therefore hindered the use of the standard retarder of common sale.
In addition, following two parameters are depended in the production of retarder at present: required reduction speed ratio; And the diameter that is used to connect the blind hole of driver element mechanical component.Thereby obviously need have a large amount of different retarders to satisfy extensively different demand.
Worm screw-the helical gear reducer that has partly overcome above-mentioned defective is disclosed in US-A-4185 514 (according to the preamble of claim 1), wherein show very complicated link, this link comprises a cylindrical basically casing, this casing is provided with a circular flange, and this circular flange need be connected with another flange plate on being installed on the gear reducer casing.At last, this casing supports this link by two isolated bearings.
The model utility content
A purpose of the present utility model is to provide a kind of worm screw-helical gear reducer that is used to overcome above-mentioned defective.
Worm screw-helical gear reducer according to the utility model provides comprises: one has first worm screw, reaches a helical gear that is installed on second; Described worm screw is connected with described helical gear; Has a blind hole at first described first end; And worm screw is connected with mechanical component at described blind hole place; Worm screw-helical gear reducer is characterised in that described blind hole is a datum hole applicable to the given serial diameter of described mechanical component; In addition, this link places between described blind hole and the described mechanical component; And pre-retarding stage is fixed on the described link.
Major advantage according to retarder of the present utility model is, given series of values for the mechanical component diameter, keep constant benchmark blind hole diameter the mechanical component of driver element can be connected with the worm screw of retarder, and can be according to the diameter of driver element mechanical component and change the diameter of link simply.
Another advantage of the present utility model is, can significantly reduce the type of stock's retarder.Promptly, retarder whole series of values, that have a blind hole diameter applicable to the mechanical component diameter of driver element can be made at central factory, and link-formulate standard according to specific user's the demand and the difference that may have, and produce great changes-can make from one place to another in this locality.
In a specific embodiment of the present utility model, link is connected in the blind hole of worm shaft by spline or lobe link.
Another advantage according to retarder of the present utility model is, is applicable to that the increase of the datum hole diameter of given standard series can cause the increase of worm shaft diameter, thereby makes total diameter of end bearing increase.Therefore, by using simple ball bearing to replace expensive roller bearing can obtain the advantage of economy and technical elements.
Description of drawings
Fig. 1 shows the schematic elevational view of known worm screw-helical gear reducer, for clarity its part is cut open.
On the other hand, the embodiment of a plurality of indefinitenesses of the present utility model will be described by the embodiment shown in the reference accompanying drawing 2-5, wherein:
Fig. 2 shows the schematic elevational view according to worm screw-helical gear reducer of the present utility model, for clarity its part is cut open;
Fig. 3 and 4 shows the schematic elevational view of the link variation of retarder shown in Figure 2, for clarity its part is cut open; And
Fig. 5 shows the schematic elevational view according to the pre-retarding stage of the utility model specific embodiment, for clarity its part is cut open.
Embodiment
Label 1 among Fig. 1 shows the worm screw-helical gear reducer of prior art as a whole, and this retarder is used for transmitting movement between the axle 2 and 3 of two inclination quadratures.Retarder 1 comprises a worm screw 4, and this worm screw has and axle 2 coaxial first 5; And a helical gear 6, be installed on and axle 3 on coaxial second 7.Worm screw 4 and helical gear 6 and axle 5 and 7 separately are installed in the inside of casing 8 basically; Have a blind hole 10 on first 5 first end 9, the mechanical component (not shown in figure 1) of driver element (not shown in figure 1) is connected in this blind hole by at least one key usually; And second end 11 that forms the output terminal of retarder 1 can be used for outputting power, to start another link that links to each other (for example, second retarder, detecting instrument, not shown among pulley-Fig. 1).
Industrial common application is, for the given numerical value of the Reference diameter of the corresponding blind hole 10 of each worm screw 4/ helical gear 6 reduction speed ratio, as described, the mechanical component of driver element separately is connected in this blind hole.
As shown in Figure 1, this type retarder is characterised in that, at 9,11 places, end of axle 5 conical bearing 12,13 is set.
Label 1 among Fig. 2 shows worm screw-helical gear reducer as a whole, is used for transmitting movement between the axle 2 and 3 of two inclination quadratures.Retarder 1 comprises a worm screw 4, and this worm screw has and axle 2 coaxial first 5; And a helical gear 6, be installed in and axle 3 on coaxial second 7.Worm screw 4 and helical gear 6 and axle 5 and 7 separately are installed on the inside of casing 8 basically; And first 5 first end 9 has a blind hole 10, and this blind hole engages with the link 14 of near cylindrical, blind hole 10 is connected with mechanical component (Fig. 2 is not shown) being used for, and then retarder 1 is connected to driver element (not shown among Fig. 2).Preferably, blind hole 10 can be connected by the spline link with link 14, as shown in Figure 2, perhaps, according to another embodiment's (not shown), connects by lobe spare.
Refer again to shown in Figure 2, link 14 is contained in the blind hole 10 basically, and have a through hole 15 and a seat (keyway) 16 that is used for holding key (Fig. 2 is not shown), by this key link 14 is connected to (not shown among Fig. 2) on the mechanical component, this mechanical component is connected to driver element (not shown among Fig. 2) with retarder 1.
In order to be complementary with larger-diameter blind hole 10, first 5 diameter also needs varying sized accordingly, and therefore, the conical bearing 12,13 among Fig. 1 can substitute with ball bearing 12a, 13a more cheap and that be easier to assemble.
In an illustrated embodiment, link 14 comprises a first portion 17 that is placed in basically in the blind hole 10; And extend to an outer outstanding second portion 18 of blind hole 10.This first and second part 17 and 18 was opened by the shaft shoulder (convex shoulder) in 19 minutes, and shown in Fig. 3 and 4, this shaft shoulder can be used as the mating face between link 14 and first 5 first end 9.
In the embodiment shown in fig. 3, the external diameter of second portion 18 is greater than the nominal diameter of blind hole 10; And link 14 has through hole 20, by this through hole link 14 is connected with the mechanical component (not shown among Fig. 3) of convex, and fastening by key.
In the embodiment shown in fig. 4, the diameter of second portion 18 is greater than the nominal diameter of blind hole 10, and second portion comprises cavity 21, and the diameter of this cavity is greater than the nominal diameter of blind hole 10, and it is be used for holding the mechanical component (Fig. 4 is not shown) of convex, and fastening by key.
Relative with output terminal, second end 11 of retarder shown in Figure 2 obviously can be used as input end.That is to say, by second end 11 is connected to driver element, and first end 9 is connected on the other use element by link 14, the function of first, second end 9 and 11 can be changed.
Fig. 5 shows certain embodiments, and a pre-retarding stage 30 wherein is provided.
This pre-retarding stage 30 comprises an input shaft 31 (being connected with driver element), and a small gear 32 is installed on this input shaft.Axle 31 supports by two ball bearings 33,34.
As shown in Figure 5, casing 8 cuts out by end cap 36.More specifically, by screw 37,38 end cap 36 is fixed on the casing 8.
In sum, obviously be understandable according to the operation of the utility model retarder, need not further to explain.
The above is a preferred embodiment of the present utility model only, is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within spirit of the present utility model and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (3)
1. a worm screw-helical gear reducer comprises a worm screw (4), and described worm screw has one first (5), and a helical gear (6), is installed on second (7); Described worm screw (4) is connected with described helical gear (6); Described first (5) have a blind hole (10) at first end (9); And state worm screw (4) in described blind hole (10) place and be connected with a mechanical component; Described worm screw-helical gear reducer (1) is characterised in that described blind hole (10) is a datum hole that is applicable to the given serial diameter of described mechanical component; In addition, link (14) places between described blind hole (10) and the described mechanical component; And a pre-retarding stage (30) is fixed on the described link (14).
2. retarder according to claim 1, wherein, described blind hole (10) is connected by the spline link with described link (14).
3. retarder according to claim 1, wherein, described blind hole (10) is connected by the lobe link with described link (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420066869 CN2713223Y (en) | 2004-06-21 | 2004-06-21 | Worm-helical gear speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420066869 CN2713223Y (en) | 2004-06-21 | 2004-06-21 | Worm-helical gear speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2713223Y true CN2713223Y (en) | 2005-07-27 |
Family
ID=34873578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420066869 Expired - Fee Related CN2713223Y (en) | 2004-06-21 | 2004-06-21 | Worm-helical gear speed reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2713223Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102057183B (en) * | 2008-06-06 | 2013-07-31 | 利纳克有限公司 | Gear with at least two gearing stages, a linear actuator comprising such a gear and a table leg comrising such a linear actuator |
-
2004
- 2004-06-21 CN CN 200420066869 patent/CN2713223Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102057183B (en) * | 2008-06-06 | 2013-07-31 | 利纳克有限公司 | Gear with at least two gearing stages, a linear actuator comprising such a gear and a table leg comrising such a linear actuator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1100951C (en) | Modular gear system with cortrate gear | |
| CN2755358Y (en) | Transmission backlash eliminating device of helical gears | |
| CN1084851C (en) | Connecting shaft to bore | |
| CN102619946B (en) | Branch torque transmission structure and mounting method thereof | |
| CN2713223Y (en) | Worm-helical gear speed reducer | |
| CN2898404Y (en) | Axial fixing structure with force transmission | |
| CN2773373Y (en) | Dog | |
| DE19932876A1 (en) | Non-circular gears | |
| CN1671981A (en) | Bevel gear, in particular a hypoid bevel gear | |
| BR0303505A (en) | Methods for Fabricating Composite Worm Planetary Gears, and for Fabricating a Planetary Gear Assembly | |
| CN2290729Y (en) | Complex stage harmonic gear mechanism | |
| CN1844702A (en) | Novel speed changing gearbox and three-screw extruder therewith | |
| CN1519099A (en) | Extruder | |
| CN1865737A (en) | Composite tooth-shape labyrinth spiral sealing | |
| CN2786367Y (en) | Drive gear pair for motorcycle starting motor | |
| CN2634200Y (en) | Gas-fee gare driving mechanism | |
| CN2610158Y (en) | High speed wire finishing mill gear clutch | |
| CN2806418Y (en) | Combined roller | |
| CN1786514A (en) | Driving apparatus of independent adjustable backlash changing thickness cycloidal gear | |
| CN2895889Y (en) | Module-type screw lifter | |
| CN208057883U (en) | The adaptive micro- elastic claw wheel of composite construction | |
| CN209430718U (en) | A kind of gear baffle device with axial limiting | |
| CN202522251U (en) | Transmission device used for driving coded disc of encoder to rotate | |
| CN2763538Y (en) | Engine for motorcycle | |
| CN2741748Y (en) | Speed reducer special for extruder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050727 Termination date: 20130621 |