CN2301777Y - Combined fly wheel for recorder - Google Patents
Combined fly wheel for recorder Download PDFInfo
- Publication number
- CN2301777Y CN2301777Y CN 97220400 CN97220400U CN2301777Y CN 2301777 Y CN2301777 Y CN 2301777Y CN 97220400 CN97220400 CN 97220400 CN 97220400 U CN97220400 U CN 97220400U CN 2301777 Y CN2301777 Y CN 2301777Y
- Authority
- CN
- China
- Prior art keywords
- belt pulley
- tube
- metal
- cooperate
- sheet
- 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
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- Pulleys (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Abstract
The utility model relates to a combined flywheel for recorders, which is composed of a plastic belt pulley 1, an annular metal plate 2 and a metal shaft 3. The metal shaft 3 is in interference fit with a central hole of the belt pulley 1. The center of the belt pulley 1 is provided with a projected mating barrel 1A which is in interference fit with a central hole 2B of the annular metal plate 2. In order to prevent the axial relative displacement of the metal plate, the central hole of metal sheet is provided with a slot 2C. When the metal plate and the belt pulley are in mutual press fit with each other through a holder, the deformation of the corresponding positions on the mating barrel 1A and the slot 2C of the central hole are utilized to prevent the metal plate and the belt pulley from rotating mutually. The utility model has the advantages of simple structure, low cost and easy assembly, and can be widely used for recorders.
Description
The utility model relates to a kind of flywheel, especially a kind of sectional flywheel of blattnerphone.
Existing sound-track engraving apparatus sectional flywheel as shown in Figure 5, form by plastic belt pulley (1), annular metal sheet (2), metal shaft (3), the center pit interference fit of axle (3) and belt pulley (1), outstanding claw (1a) is arranged on plastic belt pulley (1), there is corresponding groove (2a) to cooperate with it on the sheet metal (2), during assembling, earlier the outstanding claw of belt pulley is fit together along sheet metal fluting breach, again the two is rotated mutually an angle, outstanding claw is stuck in the hole (2b) on the sheet metal, prevents that the two from rotating mutually.The belt pulley of this sectional flywheel and metal plate structure complexity, the cost height, built-up time is long.
The purpose of this utility model is in order to overcome the deficiencies in the prior art, a kind of belt pulley and sheet metal of sectional flywheel to be provided, and simple in structure, cost is low, the sound-track engraving apparatus sectional flywheel structure that is easy to assemble.
The utility model can be realized by following scheme: be made up of plastic belt pulley (1) and annular metal sheet (2) and metal shaft (3), the central authorities of belt pulley (1) are provided with outstanding cooperation tube (1A), center pit (2B) interference fit with annular metal sheet (2), with anchor clamps the two is pressed into mutually, rely on belt pulley to cooperate the distortion fixed metal plate (2) of tube, during assembling, the bottom surface of sheet metal is with after belt pulley pastes mutually, cooperate the thickness of the height of tube greater than sheet metal, belt pulley cooperates the anchor ring (1B) of tube to continue to be under pressure, produce plastic yield, make to cooperate the tube upper end to become big, prevent that sheet metal from axial relative displacement taking place, and has groove on the center pit of sheet metal, cooperate tube to go up and the deforming of center hole slot (2C) corresponding section, prevent that the two from rotating mutually.The groove of opening on the center pit of sheet metal (2C) can be more than two.In order to improve the intensity of mating surface, can be along cooperating tube circumference cementing.
The advantage of the utility model contrast prior art is: the plastic belt pulley of flywheel and annular metal sheet simple in structure, cost is low, is easy to assembling.
Fig. 1 is a scheme of erection of the present utility model;
Fig. 2 is a structure diagram of the present utility model;
Fig. 3 is the structural representation of the groove on the utility model sheet metal center pit when being 3 grooves;
Fig. 4 is the sectional flywheel structure diagram of prior art;
In the accompanying drawing: the 1-plastic belt pulley, the 2-annular metal sheet, the 3-metal shaft, 1A-cooperates tube, and 1B-cooperates the anchor ring of tube, the 1C-fabrication hole, 1D-belt wheel body, the 2B-center pit, the 2C-groove, 1a-gives prominence to claw, 2a-slot to make way, 2b-square hole
The utility model is described in further detail below in conjunction with drawings and Examples:
Embodiment 1:
Referring to Fig. 1,, cooperate tube (1A) to be positioned at the center of belt wheel body (1D) by the flywheel that plastic belt pulley (1) and annular metal sheet (2) and metal shaft (3) are formed, both are integrally formed, the edge of wheel body (1D) has the V-type groove, is used to thong, and can there be plural fabrication hole (1C) centre; Have two grooves (2C) on the annular metal sheet center pit (2B); The cooperation tube (1A) of belt pulley, center pit (2B) interference fit with annular metal sheet is pressed into mutually by anchor clamps, by the power fixed metal plate that cooperates the tube distortion to produce; During assembling, the sheet metal bottom surface cooperates the thickness of the height of tube greater than sheet metal with after belt pulley pastes mutually, and the anchor ring of belt pulley continues to be under pressure, and produces plastic yield, makes to cooperate the tube upper end to become big, prevents sheet metal generation axial displacement.
The groove of opening on the sheet metal center pit (2C), after the two is pressed into cooperation mutually, belt pulley cooperates tube (1A) circumference to cooperate with the center pit (2B) of sheet metal, locate corresponding belt pulley with groove (2C) and cooperate the tube place outwards to protrude (see figure 2), thereby prevent that the two from rotation mutually taking place owing to being under pressure.
Embodiment 2:
The structure of this sectional flywheel is identical with embodiment (1), the center pit of different is annular metal sheet has three grooves (2C), make belt pulley cooperate the many distortion protrusion places in the tube (1A) and the contact position of the center pit (2B) of annular metal sheet (2), plastic belt pulley (1) and the more difficult generation of annular metal sheet (2) are rotated mutually.
Claims (2)
1, a kind of sound-track engraving apparatus sectional flywheel, form by plastic belt pulley (1) and annular metal sheet (2) and metal shaft (3), it is characterized in that: the central authorities of belt pulley (1) are provided with outstanding cooperation tube (1A), center pit (2B) interference fit with annular metal sheet (2), with anchor clamps the two is pressed into mutually, rely on belt pulley to cooperate the distortion fixed metal plate (2) of tube, during assembling, the bottom surface of sheet metal is with after belt pulley pastes mutually, cooperate the thickness of the height of tube greater than sheet metal, belt pulley cooperates the anchor ring (1B) of tube to continue to be under pressure, and produces plastic yield, makes to cooperate the tube upper end to become big, prevent that sheet metal from axial relative displacement taking place, have groove (2C) on the center pit of sheet metal, cooperate tube (1A) and center hole slot (2C) corresponding section to deform, prevent that the two from rotating mutually.
2, sound-track engraving apparatus sectional flywheel according to claim 1 is characterized in that: the groove on the center pit of sheet metal, its quantity can have more than two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97220400 CN2301777Y (en) | 1997-07-12 | 1997-07-12 | Combined fly wheel for recorder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97220400 CN2301777Y (en) | 1997-07-12 | 1997-07-12 | Combined fly wheel for recorder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2301777Y true CN2301777Y (en) | 1998-12-23 |
Family
ID=33936089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97220400 Expired - Fee Related CN2301777Y (en) | 1997-07-12 | 1997-07-12 | Combined fly wheel for recorder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2301777Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100430629C (en) * | 2005-02-07 | 2008-11-05 | 缪文生 | Power-assisted belt wheel |
-
1997
- 1997-07-12 CN CN 97220400 patent/CN2301777Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100430629C (en) * | 2005-02-07 | 2008-11-05 | 缪文生 | Power-assisted belt wheel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |