CN215673280U - Marble type transmission shaft overload protector - Google Patents
Marble type transmission shaft overload protector Download PDFInfo
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- CN215673280U CN215673280U CN202122243089.2U CN202122243089U CN215673280U CN 215673280 U CN215673280 U CN 215673280U CN 202122243089 U CN202122243089 U CN 202122243089U CN 215673280 U CN215673280 U CN 215673280U
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- marble
- wheel shell
- transmission block
- hollow structure
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Abstract
The utility model provides a marble type transmission shaft overload protector which comprises a flange fork, a wheel shell and a transmission block, wherein a compression device is arranged at the matching position of the wheel shell and the transmission block, the compression device is provided with a resistance piece, one end of the resistance piece is arranged to be a hollow structure, a first spring and marbles are arranged in the hollow structure of the resistance piece, a plurality of marbles are arranged, a resistance groove is arranged in the wheel shell, one end, far away from the hollow structure, of the resistance piece is embedded into the resistance groove, the resistance grooves are uniformly arranged along the circumferential direction of the wheel shell, the transmission block and the resistance groove are correspondingly provided with resistance holes, one end, far away from the hollow structure, of the resistance piece is embedded into the resistance holes, and the compression device is embedded into the resistance holes and the resistance grooves. The marble is adopted to overcome the pressure of the spring, the resistance piece is driven to slide radially with the wheel shell, the flange fork is separated from the transmission block, the power transmission is stopped, and the protection effect on the machine is realized.
Description
Technical Field
The utility model belongs to the field of transmission shafts, and particularly relates to a marble type overload protector for a transmission shaft.
Background
The transmission shaft transmits the power of the tractor to agricultural machinery such as rotary cultivators, mowers, bundling machines, ensilage machines, seeding machines and the like, and in the existing agricultural machinery, the power is transmitted to an output mechanism through the transmission shaft, so that the agricultural machinery works; in the agricultural machine, the power and the transmission shaft and the output mechanism are all in hard connection, and if the output torque of the power is too large and exceeds the range which can be borne by the transmission shaft, the transmission shaft is easy to break. The existing transmission shaft overload protector is mostly of a friction type, pressure is applied through friction plates to transfer torque, when the torque exceeds a set value, slipping occurs between the friction plates, and the torque is disengaged to realize protection. The overload protection device has the advantages of small adjustable range of the torque force, quick abrasion and poor reliability.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model provides a marble type transmission shaft overload protector.
In order to achieve the purpose, the utility model provides the following technical scheme:
a marble type transmission shaft overload protector comprises a flange fork, a wheel shell and a transmission block, wherein one end of the flange fork is connected with a universal joint, one end of the flange fork, far away from the universal joint, is connected with the wheel shell, the wheel shell is welded with the flange fork, the transmission block penetrates through the wheel shell to be connected with the flange fork, one end of the transmission block, far away from the flange fork, is provided with an internal spline hole, the internal spline hole is connected with a spline shaft to form a power transmission chain,
a compression device is arranged at the matching part of the wheel shell and the transmission block, the compression device is provided with a resistance piece, one end of the resistance piece is arranged into a hollow structure, a first spring and a plurality of marbles are arranged in the hollow structure of the resistance piece,
a resistance groove is arranged in the wheel shell, one end of the resistance piece, which is far away from the hollow structure, is embedded into the resistance groove, a plurality of resistance grooves are uniformly arranged along the circumferential direction of the wheel shell,
the transmission block and the resistance groove are correspondingly provided with resistance holes, one end, far away from the hollow structure, of the resistance piece is embedded into the resistance holes, and the compression device is embedded into the resistance holes and the resistance groove.
Furthermore, the resistance groove is provided with a trapezoidal cavity, the resistance piece is in clearance fit with the resistance hole, one end, far away from the hollow structure, of the resistance piece is provided with a cone, the length of the cone of the resistance piece is larger than the depth of the trapezoidal cavity of the resistance groove, and a certain width size is reserved in cooperation with the trapezoidal cavity of the resistance groove.
Furthermore, the resistance holes are uniformly provided with a plurality of groups along the axial direction of the transmission block, and the compression devices are embedded into the resistance holes and the resistance grooves.
Furthermore, a second spring can be sleeved in the first spring.
Furthermore, the marble is provided with various models.
Furthermore, an oil hole is formed in the wheel shell, and an oil plug is arranged on the oil hole.
Further, the resistance piece is made of GCr15 or 42CrMo4 material.
Has the advantages that: the utility model adopts the marble to overcome the pressure of the spring and drive the resistance piece and the wheel shell to radially slide, so that the flange fork is separated from the transmission block, the power transmission is stopped, and the protection effect on the machine is realized.
The number of the compression devices can be set at will according to the requirement of the output torque of the machine, the adjustable range of the torque is wide, and the resistance piece in the compression device is made of GCr15 or 42CrMo4 materials, so that the compression device is stable in performance, wear-resistant and high in reliability.
The compression device can be configured with a double-spring structure according to the requirement of the torque force or adopt marbles of different specifications and models, and the pressure between the marbles and the springs is adjusted, so that the magnitude of the output torque force is changed, and various torque force adjusting modes have the advantages of strong product performance, simple structure, and stable and reliable action.
Drawings
Fig. 1 is a schematic structural view of an overload protector for a marble-type transmission shaft according to the present invention;
FIG. 2 is a cross-sectional view of an overload protector for a marble-type propeller shaft according to the present invention;
fig. 3 is a partially enlarged view of an overload protector for a ball-type propeller shaft according to the present invention.
In the figure: 1 flange fork, 2 wheel shells, 201 resistance groove, 202 oilholes, 3 driving blocks, 301 internal spline hole, 302 resistance hole, 4 compression device, 401 resistance piece, 402 first spring, 403 marble, 404 second spring, 5 oil plug.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without any inventive step, are within the scope of the present invention.
As shown in fig. 1-3, the overload protector for a ball-type transmission shaft provided by the present invention comprises a flange yoke 1, a wheel housing 2, and a transmission block 3, wherein one end of the flange yoke 1 is connected to a universal joint, one end of the flange yoke 1 away from the universal joint is connected to the wheel housing 2, the wheel housing 2 is welded to the flange yoke 1, the transmission block 3 passes through the wheel housing 2 and is connected to the flange yoke 1, one end of the transmission block 3 away from the flange yoke 1 is provided with an inner spline hole 301, the inner spline hole 301 is connected to the spline shaft to form a power transmission chain,
a compression device 4 is arranged at the matching position of the wheel shell 2 and the transmission block 3, the compression device 4 is provided with a resistance part 401, one end of the resistance part 401 is arranged to be a hollow structure, a first spring 402 and a marble 403 are arranged in the hollow structure of the resistance part 401, a plurality of marbles 403 are arranged,
a resistance groove 201 is arranged in the wheel shell 2, one end of the resistance part 401, which is far away from the hollow structure, is embedded into the resistance groove 201, a plurality of resistance grooves 201 are uniformly arranged along the circumferential direction of the wheel shell 2,
the transmission block 3 with the resistance groove 201 corresponds and is provided with resistance hole 302, resistance 401 is kept away from the one end embedding of hollow structure resistance hole 302 sets up, compression device 4 embedding resistance hole 302 with in the resistance groove 201, but the quantity of the size adjustment compression device 4 of the demand of torque satisfies the user demand.
In practical application, the resistance groove 201 is set to be a trapezoid cavity, the resistance part 401 is in clearance fit with the resistance hole 302, one end, away from the hollow structure, of the resistance part 401 is set to be a cone, the length of the cone of the resistance part 401 is larger than the depth of the trapezoid cavity of the resistance groove 201, a certain width size is reserved in cooperation with the trapezoid cavity of the resistance groove 201, when the torque force is too large, the transmission block 3 is separated from the flange fork 1 quickly, and a transmission shaft is protected.
In practical application, the resistance holes 302 are uniformly provided with a plurality of groups along the axial direction of the transmission block 3, the compression devices 4 are embedded into the resistance holes 302 and the resistance grooves 201, the number of the compression devices 4 can be adjusted according to the torque requirement, and the larger torque using requirement is met.
In practical application, the first spring 402 may be sleeved with a second spring 404, and a double spring is provided, so as to increase the pressure of the marble 403 against the first spring 402 and the second spring 404, and increase the required torsion of the power transmission member.
In practical application, the marble 403 is provided with various types, and the type of the marble 403 can be changed according to the torque force required by the power transmission member, so that the torque force output requirement is met.
In practical application, the wheel shell 2 is provided with an oil hole 202, the oil hole 202 is provided with an oil plug 5, and lubricating oil is input through the oil hole arranged on the wheel shell 2 to lubricate the resistance groove 201, the resistance hole 302 and the compression device 4.
In practical application, the resistance element 401 is made of GCr15 or 42CrMo4 material, and has good hardenability, good wear resistance and high contact fatigue performance.
The working principle is as follows:
the utility model discloses an utilize marble 403, first spring 402, resistance 401 to constitute compressor arrangement 4, compressor arrangement 4 with overload protection assembly is constituteed to resistance groove 201, resistance hole 302, can use also separately with the transmission shaft equipment together, and when transmission torque exceeded the specified value scope, the pressure of first spring 402 was overcome to marble 403, drive resistance 401 with wheel shell 2 takes place the radial slip, makes flange fork 1 with the separation of transmission piece 3, the power transmission of stopping realizes the guard action to the machine.
The foregoing shows and describes the principles, essential features and advantages of the present invention, with front, rear, left and right non-limiting reference being made thereto, primarily for the purpose of illustrating the technology more intuitively, and without limitation. It should be understood by those skilled in the art that the foregoing embodiments are merely illustrative of the technical spirit and features of the present invention, and the present invention is not limited thereto but may be implemented by those skilled in the art.
Claims (7)
1. A marble type transmission shaft overload protector comprises a flange fork (1), a wheel shell (2) and a transmission block (3), wherein one end of the flange fork (1) is connected with a universal joint, one end, far away from the universal joint, of the flange fork (1) is connected with the wheel shell (2), the wheel shell (2) is welded with the flange fork (1), the transmission block (3) penetrates through the wheel shell (2) to be connected with the flange fork (1), one end, far away from the flange fork (1), of the transmission block (3) is provided with an inner spline hole (301), the inner spline hole (301) is connected with a spline shaft to form a power transmission chain,
the method is characterized in that: a compression device (4) is arranged at the matching position of the wheel shell (2) and the transmission block (3), the compression device (4) is provided with a resistance piece (401), one end of the resistance piece (401) is of a hollow structure, a first spring (402) and a plurality of marbles (403) are arranged in the hollow structure of the resistance piece (401),
a resistance groove (201) is arranged in the wheel shell (2), one end, far away from the hollow structure, of the resistance piece (401) is embedded into the resistance groove (201), a plurality of resistance grooves (201) are uniformly arranged along the circumferential direction of the wheel shell (2),
the transmission block (3) and the resistance groove (201) are correspondingly provided with resistance holes (302), one end, far away from the hollow structure, of the resistance piece (401) is embedded into the resistance holes (302), and the compression device (4) is embedded into the resistance holes (302) and the resistance groove (201).
2. The overload protector for a marble-type propeller shaft of claim 1, wherein: resistance groove (201) set up to trapezoidal die cavity, resistance (401) with resistance hole (302) clearance fit, keep away from resistance (401) hollow structure one end sets up to the cone, resistance (401) cone length is greater than the trapezoidal die cavity degree of depth of resistance groove (201), with certain width size is reserved in the cooperation of resistance groove (201) trapezoidal die cavity.
3. The overload protector for a marble-type propeller shaft of claim 1, wherein: the resistance holes (302) are uniformly arranged in multiple groups along the axial direction of the transmission block (3), and the compression devices (4) are embedded into the resistance holes (302) and the resistance grooves (201).
4. The overload protector for a marble-type propeller shaft of claim 1, wherein: a second spring (404) can be sleeved in the first spring (402).
5. The overload protector for a marble-type propeller shaft of claim 1, wherein: the marble (403) is provided with a plurality of models.
6. The overload protector for a marble-type propeller shaft of claim 1, wherein: an oil hole (202) is formed in the wheel shell (2), and an oil plug (5) is arranged on the oil hole (202).
7. The overload protector for a marble-type propeller shaft of claim 1, wherein: the resistance piece (401) is made of GCr15 or 42CrMo4 material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122243089.2U CN215673280U (en) | 2021-09-16 | 2021-09-16 | Marble type transmission shaft overload protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122243089.2U CN215673280U (en) | 2021-09-16 | 2021-09-16 | Marble type transmission shaft overload protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215673280U true CN215673280U (en) | 2022-01-28 |
Family
ID=79963913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122243089.2U Active CN215673280U (en) | 2021-09-16 | 2021-09-16 | Marble type transmission shaft overload protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215673280U (en) |
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2021
- 2021-09-16 CN CN202122243089.2U patent/CN215673280U/en active Active
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