CN102305283A - Input gear shaft structure for speed reducer of straightening machine - Google Patents
Input gear shaft structure for speed reducer of straightening machine Download PDFInfo
- Publication number
- CN102305283A CN102305283A CN201110147757A CN201110147757A CN102305283A CN 102305283 A CN102305283 A CN 102305283A CN 201110147757 A CN201110147757 A CN 201110147757A CN 201110147757 A CN201110147757 A CN 201110147757A CN 102305283 A CN102305283 A CN 102305283A
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- gear shaft
- input gear
- bearing
- ring
- speed reducer
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Abstract
The invention provides an input gear shaft structure for a speed reducer of a straightening machine. The input gear shaft structure is easy to install and convenient to disassemble, and axial clearance of an input shaft is easy to adjust. The input gear shaft structure comprises an input gear shaft, bearings, a distance ring, a retainer ring and an end cover, wherein the two bearings are sleeved at the shaft end of the input gear shaft; one end of an inner ring of each bearing leans against a first shaft neck of the gear shaft tightly, and the distance ring, the retainer ring and a second shaft neck of the gear shaft are pressed at the other end of the inner ring of each bearing sequentially; and the end cover is pressed on an outer ring of the same end of each bearing, and is sleeved on the gear shaft. The input gear shaft structure is characterized in that the external diameter of a top circle of a shaft gear of the input gear shaft is smaller than that of the outer ring of each bearing.
Description
Technical field
the present invention relates to speed reducer component technology field, are specially a kind of straightening machine speed reducer with the input gear shaft structure.
Background technique
speed reducer is that a kind of power is passed on mechanism, utilizes the velocity transducer of gear, the winding number of power source is decelerated to desired winding number, and obtain the mechanism of big torque.Be used for the mechanism of transferring power and motion at present, the application area of speed reducer is quite extensive.Almost in the transmission system of various machinery, can see its trace; Boats and ships, automobile, locomotive from the traffic tool; Heavy facility for building; Machining machine and tool that mechanical industry is used and automated production equipment, common household electrical appliances in the daily life, clock and watch or the like. it uses the transmission work from big power; To little load; Accurate angle transmission can be seen the application of speed reducer, and on commercial Application, speed reducer has deceleration and increases the torque function.Therefore be widely used in the conversion equipment of speed and moment of torsion.
existing straightening machine speed reducer is with in the input gear shaft structure; The gear shaft external diameter is bigger than bearing outer ring; Cause when after installing, disassembling casing and will input shaft could be taken out after end cap disconnects, the connection end cap could be installed after installation also will install input shaft simultaneously connecting.If the axial clearance of adjustment input in early stage bearing will be pretty troublesome.
Summary of the invention
To the problems referred to above, the present invention provides a kind of straightening machine speed reducer with the input gear shaft structure,
It is easy to install, be easy to adjust the axial clearance of input shaft
, also conveniently disassembles simultaneously.
its technological scheme is: it comprises input gear shaft, bearing, distance ring, back-up ring and end cap; The axle head of said input gear shaft is set with said bearing; Totally two on said bearing; One end of its inner ring is close to first axle journal of gear shaft; The other end of its inner ring is pressed with second axle journal of distance ring, back-up ring, gear shaft successively; At same end; Be pressed with end cap on its outer ring; Said end cap is set in said gear shaft, it is characterized in that: the top circle external diameter of the shaftgear of said input gear shaft is less than the external diameter of said bearing outer ring.
its further characteristic is: said two bearings are tapered roller bearing; It is face-to-face setting; Said gear shaft is provided with keyway.
In
said structure of the present invention; The top circle external diameter of the shaftgear of said input gear shaft is less than the external diameter of said bearing outer ring; Under the situation of not disassembling the connection end cap, just input shaft can be taken out like this; Be easy to install, be easy to adjust the axial clearance of input shaft, also conveniently disassemble simultaneously; And bearing adopts and to install face-to-face, can bear bigger footpath, thrust load, and impact resistance is big, stable and reliable operation, further guaranteed easy to adjust, easy-to-operat in disassembling and installing.
Description of drawings
Fig. 1 is an overall structure schematic representation of the present invention.
Embodiment
Fig. 1 is seen in
, the present invention includes input gear shaft 1, bearing 2, distance ring 3, back-up ring 4 and end cap 5, and the axle head of input gear shaft 1 is set with bearing 2, and totally two on bearing 2 is respectively tapered roller bearing; Become face-to-face to be provided with; Become the bearing 2 that is provided with face-to-face; One end of its inner ring is close to first axle journal of input gear shaft 1; The other end of its inner ring is pressed with second axle journal of distance ring 3, back-up ring 4, input gear shaft 1 successively; At same end; Be pressed with end cap 5 on the outer ring of the bearing 2 that one-tenth is provided with face-to-face, end cap 5 is set in input gear shaft 1.It is hexagon socket head cap screw that input gear shaft 1 is provided with keyway 6,7, and 8 is spring washer
Below in conjunction with accompanying drawing the present invention is further described:
All more than 1.3, flexural strength is more than 1.9 through the checking computations contact strength for
speed reducer input gear shaft 1 intensity.
bearing 2 adopts import brand bearings such as SKF or NSK.
Splash lubrication is adopted in
, and high speed shaft adopts pressure lubrication in case of necessity; Interface sizes such as installation dimension and input and output are surveyed and drawn to on-the-spot according to structural drawings, rule of thumb formula is calculated and is confirmed application factor (generally getting more than 1.75), guarantees to reach complete machine interchangeability with former machine.
The material of
input gear shaft 1 adopts the 20CrNi2MoA forging; Carry out the interior tissue flaw detection after the forging roughing; Quality is not less than the I level among the JB/T5000.15-2007; Flank of tooth carburizing and quenching roll flute; Pitch circle place four point measurements; 5 grades of execution of ISO1328-1:1995 standard are pressed in tooth face hardness HRC60 ± 3, the accuracy of gear.Carburized layer depth adopts 0.15～0.2 times the modulus degree of depth that is higher than GB.Magnetic powder detection after 1 fine finishing of input gear shaft.
Claims (4)
1. a straightening machine speed reducer is with the input gear shaft structure; It comprises input gear shaft, bearing, distance ring, back-up ring and end cap; The axle head of said input gear shaft is set with said bearing; Totally two on said bearing; One end of its inner ring is close to first axle journal of gear shaft; The other end of its inner ring is pressed with second axle journal of distance ring, back-up ring, gear shaft successively; At same end; Be pressed with end cap on its outer ring; Said end cap is set in said gear shaft, it is characterized in that: the top circle external diameter of the shaftgear of said input gear shaft is less than the external diameter of said bearing outer ring.
2. according to the said a kind of straightening machine speed reducer of claim 1 input gear shaft structure, it is characterized in that: said two bearings are tapered roller bearing.
3. according to the said a kind of straightening machine speed reducer of claim 2 input gear shaft structure, it is characterized in that: said two tapered roller bearings are face-to-face setting.
4. according to the said a kind of straightening machine speed reducer of claim 1 input gear shaft structure, it is characterized in that: said input gear shaft is provided with keyway.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110147757A CN102305283A (en) | 2011-06-03 | 2011-06-03 | Input gear shaft structure for speed reducer of straightening machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110147757A CN102305283A (en) | 2011-06-03 | 2011-06-03 | Input gear shaft structure for speed reducer of straightening machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102305283A true CN102305283A (en) | 2012-01-04 |
Family
ID=45379177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110147757A Pending CN102305283A (en) | 2011-06-03 | 2011-06-03 | Input gear shaft structure for speed reducer of straightening machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102305283A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104343936A (en) * | 2013-07-29 | 2015-02-11 | 住友重机械工业株式会社 | A bearing support structure and a manufacturing method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2661340Y (en) * | 2003-03-24 | 2004-12-08 | 上海新中连铸技术工程公司 | Speed reducer drived and shaft installed full water cooling straightening machine |
| CN201419233Y (en) * | 2009-05-15 | 2010-03-10 | 宁波东力传动设备股份有限公司 | Speed reducer dedicated for metallurgy continuous-casting withdrawal and straightening unit |
| CN202118215U (en) * | 2011-06-03 | 2012-01-18 | 江苏赫夫特齿轮制造有限公司 | Inputting gear shaft structure for reducer of withdrawal and straightening unit LJJ360 |
-
2011
- 2011-06-03 CN CN201110147757A patent/CN102305283A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2661340Y (en) * | 2003-03-24 | 2004-12-08 | 上海新中连铸技术工程公司 | Speed reducer drived and shaft installed full water cooling straightening machine |
| CN201419233Y (en) * | 2009-05-15 | 2010-03-10 | 宁波东力传动设备股份有限公司 | Speed reducer dedicated for metallurgy continuous-casting withdrawal and straightening unit |
| CN202118215U (en) * | 2011-06-03 | 2012-01-18 | 江苏赫夫特齿轮制造有限公司 | Inputting gear shaft structure for reducer of withdrawal and straightening unit LJJ360 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104343936A (en) * | 2013-07-29 | 2015-02-11 | 住友重机械工业株式会社 | A bearing support structure and a manufacturing method thereof |
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Application publication date: 20120104 |