CN201723715U - Transmission case sealing device for crop cutter - Google Patents
Transmission case sealing device for crop cutter Download PDFInfo
- Publication number
- CN201723715U CN201723715U CN2010202514172U CN201020251417U CN201723715U CN 201723715 U CN201723715 U CN 201723715U CN 2010202514172 U CN2010202514172 U CN 2010202514172U CN 201020251417 U CN201020251417 U CN 201020251417U CN 201723715 U CN201723715 U CN 201723715U
- Authority
- CN
- China
- Prior art keywords
- rubber ring
- sealing rubber
- transmission case
- sealing
- sealing device
- 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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Abstract
The utility model relates to a transmission case sealing device for a crop cutter. The transmission case sealing device is composed of a sealing rubber ring pressing frame, a sealing rubber ring, a sheet iron and a collar tension spring, wherein a steel skeleton is casted in the sealing rubber ring, the collar tension spring is installed in an O-shaped circular groove of the sealing rubber ring, and the sealing rubber ring is installed in a step hole of the sealing rubber ring pressing frame. When being assembled, the transmission case sealing device is installed on a moving cutter wheel shaft of the crop cutter, the moving cutter wheel shaft is connected to the transmission case, and then the sealing rubber ring pressing frame is fixed on the case body of the transmission case of the crop cutter through screws. In any working states, the connection between the shaft and a transmission case body is in the non-clearance state, and the frictional force between the moving cutter wheel shaft and the sealing device is small and has no influence on the normal operation of the crop cutter, thereby reaching the sealing device requirements of preventing the oil in the case from being spilled and the outside dust from being sucked. The oil in the case can not be spilled when the crop cutter is moved in any way.
Description
Technical field
The utility model relates to a kind of farm machinery hay cutter, relates to a kind of transmission case sealing device for hay cutter specifically.
Background technique
In the prior art, have the machine oil of certain altitude in the hay cutter gearbox, its effect is when hay cutter is worked, and the bottom gear in the gearbox takes up oil and is splashed in the case everywhere, reaches lubricated each working gear state under and cools off.Existing hay cutter gearbox sealing means is to be enclosed within on the hay cutter moving knife wheel shaft with foam plate to seal, no matter hay cutter is under any working state, its moving knife wheel shaft and gap, gearbox casing joint all exist, sealing effect is poor, leakage of oil and the turbid need of inner box-machine greasy dirt are often changed, and the problem that the opportunity oil spill of moving goes out is ubiquitous.
Summary of the invention
The defective of, leakage of oil poor and the turbid existence of inner box-machine greasy dirt at the sealing effect that existing hay cutter gearbox sealing means exists, the utility model provides a kind of no matter hay cutter is under any working state, after hay cutter moving knife wheel shaft is connected in the gearbox, axle all is in no gap state with the joint of gearbox casing, frictional force between axle and the seal arrangement is little, prevents that inner box-machine oil from spilling the seal arrangement that sucks with outside dust.
Solving the problems of the technologies described above the concrete technological scheme of being taked is:
A kind of transmission case sealing device for hay cutter, it is characterized in that: constitute by sealing rubber ring press box (1), sealing rubber ring (2), Steel Skeleton (3) and collar extension spring (4), wherein: Steel Skeleton (3) Bao Zhu is in sealing rubber ring (2), collar extension spring (4) is installed in the O shape annular groove (8) of sealing rubber ring (2), and sealing rubber ring (2) is installed in the step hole (9) of sealing rubber ring press box (1).
Good effect of the present utility model: the utility model is installed on the hay cutter moving knife wheel shaft, be connected to the moving knife wheel shaft in the gearbox again after, no matter hay cutter is under any working state, axle all is in no gap state with the joint of gearbox casing; Frictional force between axle and the seal arrangement is very little, and the proper functioning of hay cutter is had no effect; Reached and prevented that inner box-machine oil from spilling the seal arrangement requirement that sucks with outside dust; Inner box-machine oil can not overflow when hay cutter moved by any way.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the assembly structure schematic representation of the utility model and hay cutter gearbox;
Fig. 3 is the structural representation of sealing rubber ring in the utility model;
Fig. 4 is the structural representation of sealing rubber ring press box in the utility model;
Fig. 5 is the B-B sectional view of Fig. 4.
Below in conjunction with accompanying drawing the utility model is described further.
A kind of transmission case sealing device for hay cutter, as Fig. 1, Fig. 2, Fig. 3, Fig. 4 and shown in Figure 5, constitute by sealing rubber ring press box 1, sealing rubber ring 2, Steel Skeleton 3 and collar extension spring 4, wherein: cast in sealing rubber ring 2 by Steel Skeleton 3 bags that sheet iron is made, to guarantee that sealing rubber ring 2 does not produce serious deformation under stressed situation; Collar extension spring 4 is installed in the O shape annular groove 8 of sealing rubber ring 2, make two pointed shape endoporus of sealing rubber ring 2 be subjected to the elastic force effect of collar extension spring 4 all the time, reach the diameter of axle that guarantees moving knife wheel shaft 6 and the cooperating of two pointed shape endoporus apertures of sealing rubber ring 2 be in no gap state all the time; Sealing rubber ring 2 is installed in the step hole 9 of sealing rubber ring press box 1.During assembling, earlier the utility model is installed on the hay cutter moving knife wheel shaft 6, again moving knife wheel shaft 6 is connected in the gearbox 5, by fixed hole 10 sealing rubber ring press box 1 is fixed on the casing of gearbox 5 with screw 7.When hay cutter is worked, just can prevent that the moving knife wheel shaft 6 and the inner box-machine oil of gearbox casing 5 joints from spilling and outside dust suction like this, when hay cutter moved by any way, inner box-machine oil can not overflow.The diameter of axle of moving knife wheel shaft 6 cooperates with the employing slight interference that cooperates in two pointed shape endoporus apertures of sealing rubber ring 2, and the diameter of axle of moving knife wheel shaft 6 is 0.1-0.2mm greater than the endoporus aperture size of two pointed shape of sealing rubber ring 2.Sealing rubber ring 2 is a Spielpassung with the radial fit of sealing rubber ring press box 1, and the aperture of the step hole 9 of sealing rubber ring press box 1 is 0.2-0.3mm greater than the external diameter of sealing rubber ring 2.It is that the hole depth of step hole 9 of sealing rubber ring press box 1 is 0.8-1.2mm less than the thickness of sealing rubber ring 2 that sealing rubber ring 2 and sealing rubber ring press box 1 axial cooperates.Like this, no matter hay cutter is under any working state, after hay cutter moving knife wheel shaft 6 is connected in the gearbox 5, all is in no gap state with the joint of sealing rubber ring 2.Sealing rubber ring 2 can be regulated the tension force of sealing rubber ring endoporus automatically, the frictional force between controlling moving knife wheel shaft 6 and sealing rubber ring 2 cooperating.In assembly process, the moving knife wheel shaft 6 and the matching gap of sealing rubber ring 2 can be adjusted to optimal state, the sealing rubber ring 2 and the applying of gearbox casing 5 can be adjusted to the perfect condition of sealing fully simultaneously.
Claims (1)
1. transmission case sealing device for hay cutter, it is characterized in that: constitute by sealing rubber ring press box (1), sealing rubber ring (2), Steel Skeleton (3) and collar extension spring (4), wherein: Steel Skeleton (3) Bao Zhu is in sealing rubber ring (2), collar extension spring (4) is installed in the O shape annular groove (8) of sealing rubber ring (2), and sealing rubber ring (2) is installed in the step hole (9) of sealing rubber ring press box (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202514172U CN201723715U (en) | 2010-07-08 | 2010-07-08 | Transmission case sealing device for crop cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202514172U CN201723715U (en) | 2010-07-08 | 2010-07-08 | Transmission case sealing device for crop cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201723715U true CN201723715U (en) | 2011-01-26 |
Family
ID=43492041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202514172U Expired - Fee Related CN201723715U (en) | 2010-07-08 | 2010-07-08 | Transmission case sealing device for crop cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201723715U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101897262A (en) * | 2010-07-08 | 2010-12-01 | 辽宁金伟汽车电机电器有限公司 | Transmission case sealing device for hay cutter |
-
2010
- 2010-07-08 CN CN2010202514172U patent/CN201723715U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101897262A (en) * | 2010-07-08 | 2010-12-01 | 辽宁金伟汽车电机电器有限公司 | Transmission case sealing device for hay cutter |
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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: 20110126 Termination date: 20110708 |