CN210265575U - Transmission shaft with overload protection - Google Patents
Transmission shaft with overload protection Download PDFInfo
- Publication number
- CN210265575U CN210265575U CN201920765609.6U CN201920765609U CN210265575U CN 210265575 U CN210265575 U CN 210265575U CN 201920765609 U CN201920765609 U CN 201920765609U CN 210265575 U CN210265575 U CN 210265575U
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- China
- Prior art keywords
- transmission shaft
- flange plate
- telescopic sleeve
- overload protection
- oil seal
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Abstract
The utility model discloses a transmission shaft with overload protection, which comprises a telescopic sleeve, two universal joints, a first transmission shaft, a first flange plate, a second transmission shaft and a second flange plate; one end of the telescopic sleeve is fixed with a universal joint; the other end of the telescopic sleeve is connected with one end of the first transmission shaft through a spline; a first flange plate is fixed at the other end of the first transmission shaft, and a second flange plate and a universal joint are respectively fixed at the two ends of the second transmission shaft; the first flange plate is connected with the second flange plate through a plurality of shear bolts. Has the advantages that: the utility model discloses simple structure, when the farming machines work overload was blocked even, the epaxial shear bolt of transmission will split, and first transmission shaft and secondary drive axle will separate, and the engine will idle running, is not transmitting power, has protected farming machines and engine, has avoided the damage of first transmission shaft and secondary drive axle simultaneously, only needs to change shear bolt, changes convenient simple, has reduced the cost of direct change transmission shaft.
Description
The technical field is as follows:
the utility model relates to a transmission shaft especially relates to a take overload protection's transmission shaft.
Background art:
in the transmission shaft used in the current market, under the normal working condition, the power output by an engine is transmitted to an agricultural tillage implement through the transmission shaft; however, due to the complexity of the environment in the actual work, namely, the tillage implement can meet obstacles such as boulders, tree roots, crop roots and the like in the land in the tillage process, the work of the tillage implement is very easy to overload and even be clamped, and at the moment, the power is still output all the time when the engine still operates, the transmission shaft is very easy to damage, the cost for replacing the transmission shaft is increased, and the work efficiency is reduced; and even more seriously, the engine and the speed reducer can be damaged, and huge loss is caused.
The utility model has the following contents:
the utility model aims to provide a transmission shaft with overload protection, which has simple structure and plays a role in protecting tillage equipment and an engine.
The utility model discloses by following technical scheme implement: a transmission shaft with overload protection comprises a telescopic sleeve, two universal joints, a first transmission shaft, a first flange plate, a second transmission shaft and a second flange plate; the universal joint is fixed at one end of the telescopic sleeve; the other end of the telescopic sleeve is connected with one end of the first transmission shaft through a spline; the other end of the first transmission shaft is fixedly provided with the first flange plate, and the two ends of the second transmission shaft are respectively fixedly provided with the second flange plate and the universal joint; the first flange plate is connected with the second flange plate through a plurality of shear bolts.
Furthermore, the surface of the first transmission shaft is annularly and uniformly provided with a plurality of long-strip-shaped splines, and spline grooves matched with the splines are formed in the inner wall of the telescopic sleeve.
Further, an oil inlet hole is formed in the telescopic sleeve, and an oil inlet check valve is installed in the oil inlet hole; an oil seal is integrally formed at one end, located at the first flange, of the first transmission shaft; the end face of the telescopic sleeve is in contact with the end face of the oil seal, and an oil seal cover is fixedly sleeved at the contact position of the telescopic sleeve and the oil seal.
Further, the outer diameter of the oil seal is the same as that of the telescopic sleeve.
The utility model has the advantages that: the utility model has simple structure and easy realization; when the tillage machine is overloaded and even clamped, the shearing bolt on the transmission shaft is broken, the first transmission shaft and the second transmission shaft are separated, the engine idles, power is not transmitted, the tillage machine and the engine are protected, meanwhile, the first transmission shaft and the second transmission shaft are prevented from being damaged, only the shearing bolt needs to be replaced, the replacement is convenient and simple, and the cost for directly replacing the transmission shaft is reduced.
Description of the drawings:
fig. 1 is a schematic view of the overall structure of the embodiment of the present invention.
The oil-feeding structure comprises a telescopic sleeve 1, a spline groove 1.1, an oil inlet hole 1.2, a universal joint 2, a first transmission shaft 3, a spline 3.1, a first flange plate 4, a second transmission shaft 5, a second flange plate 6, a shearing bolt 7, an oil-feeding one-way valve 8, an oil seal 9 and an oil seal cover 10.
The specific implementation mode is as follows:
the present invention will be described in further detail by way of examples with reference to the accompanying drawings.
As shown in fig. 1, a transmission shaft with overload protection includes a telescopic sleeve 1, two universal joints 2, a first transmission shaft 3, a first flange 4, a second transmission shaft 5 and a second flange 6; one end of the telescopic sleeve 1 is fixed with a universal joint 2; the other end of the telescopic sleeve 1 is connected with one end of the first transmission shaft 3 through a spline 3.1; a first flange plate 4 is fixed at the other end of the first transmission shaft 3, and a second flange plate 6 and a universal joint 2 are respectively fixed at two ends of the second transmission shaft 5; the first flange plate 4 is connected with the second flange plate 6 through a plurality of shear bolts 7; when the tillage implement is overloaded and even clamped, the shear bolt 7 on the transmission shaft is broken, the first transmission shaft 3 and the second transmission shaft 5 are separated, the engine idles, power is not transmitted, the tillage implement and the engine are protected, meanwhile, the first transmission shaft 3 and the second transmission shaft 5 are prevented from being damaged, only the shear bolt 7 needs to be replaced, the replacement is convenient and simple, and the cost for directly replacing the transmission shaft is reduced.
The surface of the first transmission shaft 3 is uniformly provided with a plurality of strip splines 3.1 in an annular shape, and the inner wall of the telescopic sleeve 1 is provided with a spline 3.1 groove 1.1 matched with the spline 3.1.
An oil inlet hole 1.2 is formed in the telescopic sleeve 1, and an oil inlet check valve 8 is installed in the oil inlet hole 1.2; an oil seal 9 is integrally formed at one end of the first transmission shaft 3, which is positioned at the first flange plate 4; the end face of the telescopic sleeve 1 is contacted with the end face of the oil seal 9, the outer diameter of the oil seal 9 is the same as that of the telescopic sleeve 1, and an oil seal cover 10 is fixedly sleeved at the contact position of the telescopic sleeve 1 and the oil seal 9; the utility model discloses simple structure easily realizes.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. A transmission shaft with overload protection is characterized by comprising a telescopic sleeve, two universal joints, a first transmission shaft, a first flange plate, a second transmission shaft and a second flange plate; the universal joint is fixed at one end of the telescopic sleeve; the other end of the telescopic sleeve is connected with one end of the first transmission shaft through a spline; the other end of the first transmission shaft is fixedly provided with the first flange plate, and the two ends of the second transmission shaft are respectively fixedly provided with the second flange plate and the universal joint; the first flange plate is connected with the second flange plate through a plurality of shear bolts.
2. A transmission shaft with overload protection according to claim 1, wherein a plurality of strip splines are uniformly arranged on the surface of the first transmission shaft in an annular shape, and spline grooves matched with the splines are formed in the inner wall of the telescopic sleeve.
3. The transmission shaft with the overload protection function according to claim 1, wherein an oil inlet hole is formed in the telescopic sleeve, and an oil inlet check valve is installed in the oil inlet hole; an oil seal is integrally formed at one end, located at the first flange, of the first transmission shaft; the end face of the telescopic sleeve is in contact with the end face of the oil seal, and an oil seal cover is fixedly sleeved at the contact position of the telescopic sleeve and the oil seal.
4. A drive shaft with overload protection according to claim 3, wherein the outer diameter of the oil seal is the same as the outer diameter of the telescopic sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920765609.6U CN210265575U (en) | 2019-05-25 | 2019-05-25 | Transmission shaft with overload protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920765609.6U CN210265575U (en) | 2019-05-25 | 2019-05-25 | Transmission shaft with overload protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210265575U true CN210265575U (en) | 2020-04-07 |
Family
ID=70038512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920765609.6U Active CN210265575U (en) | 2019-05-25 | 2019-05-25 | Transmission shaft with overload protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210265575U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111457145A (en) * | 2020-05-28 | 2020-07-28 | 潍坊水发供水集团有限公司 | Portable electric well valve opening device |
-
2019
- 2019-05-25 CN CN201920765609.6U patent/CN210265575U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111457145A (en) * | 2020-05-28 | 2020-07-28 | 潍坊水发供水集团有限公司 | Portable electric well valve opening device |
| CN111457145B (en) * | 2020-05-28 | 2021-09-24 | 潍坊水发供水集团有限公司 | Portable electric well valve opening device |
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