CN216895631U - Be applied to differential lock on unmanned agricultural machine - Google Patents
Be applied to differential lock on unmanned agricultural machine Download PDFInfo
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- CN216895631U CN216895631U CN202121252764.1U CN202121252764U CN216895631U CN 216895631 U CN216895631 U CN 216895631U CN 202121252764 U CN202121252764 U CN 202121252764U CN 216895631 U CN216895631 U CN 216895631U
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- differential
- bevel gear
- pin
- lock spring
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Abstract
The utility model relates to the technical field of differential locks, and discloses a differential lock applied to unmanned agricultural machinery.
Description
Technical Field
The utility model relates to the technical field of differential locks, in particular to a differential lock applied to unmanned agricultural machinery.
Background
The description of the background of the utility model related to the present invention is provided for illustrative purposes only and for facilitating an understanding of the present invention, and should not be construed as an admission or suggestion that the applicant is admitted to be prior art to the filing date of the first-filed application of the present invention.
The differential mechanism of the agricultural machinery is a mechanism which can enable left and right rotating wheels to realize different rotating speeds. However, when the agricultural machine works, due to the influence of the working environment, the vehicle is easy to cause the idle running of one of the left wheel and the right wheel, at the moment, under the influence of the differential mechanism, the other wheel cannot obtain enough power, the vehicle is difficult to get rid of difficulties, and the normal work of the agricultural machine is influenced. Under the condition, the differential lock can connect the differential mechanism and the two wheels together, and the torque of the left wheel and the right wheel is uniformly distributed, so that the left wheel and the right wheel of the agricultural machine have enough power to get rid of difficulties.
At present, when a differential and a differential lock are engaged, a mainstream differential locking structure mostly needs to be stopped or reduced to a low speed to complete the engagement, and the engagement needs to be completed through manual operation. Particularly, when the agricultural machinery is unmanned and is operated by an electric or hydraulic actuating mechanism, the feedback effect is difficult to be achieved like manual operation, and the differential lock cannot be meshed.
On the other hand, the traditional engagement mode causes the complexity of the engagement step, and the repeated deceleration and parking can further reduce the operating efficiency of the agricultural machine. In order to enable the differential mechanism to be meshed with the differential lock more stably, the meshing efficiency is improved, and unnecessary meshing steps are reduced. The differential lock structure which can be applied to the unmanned agricultural machine is urgently needed to be researched and developed.
Therefore, the differential lock applied to the unmanned agricultural machine is provided.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of providing a differential lock which has simple structure, low manufacturing cost and high meshing efficiency, enables the meshing between a differential mechanism and a differential lock to be more stable and is used for unmanned agricultural machinery.
In order to solve the technical problems, the technical scheme of the utility model is as follows:
the utility model provides a be applied to differential lock on unmanned agricultural machine, the differential lock is installed on differential mechanism, differential lock one side is provided with differential lock combination cover, install differential lock spring assembly on the differential lock combination cover. The differential mechanism comprises a differential mechanism shell, a transmission shaft is arranged inside the differential mechanism shell, a bevel pinion is sleeved on the transmission shaft, a bevel half shaft gear is arranged inside the differential mechanism shell, the bevel pinion is meshed with the bevel half shaft gear, a differential lock spring assembly comprises a differential lock pin shaft spring sleeve fixedly arranged on a differential lock joint sleeve, the number of the differential lock pin shaft spring sleeves is multiple and multiple, a differential lock spring pin is arranged in each differential lock pin shaft spring sleeve, a differential lock spring is sleeved on one side of each differential lock spring pin, and pin holes used for containing the differential lock spring pin are formed in the differential mechanism shell and the bevel half shaft gear.
As a preferable technical scheme, the contact end of the differential lock spring pin and the differential half shaft bevel gear is a spherical surface, the other end of the differential lock spring pin is a plane, and the inner wall of the pin hole is an arc surface.
As a preferable technical scheme, when the differential lock is meshed, a spring pin of the differential lock penetrates through a pin hole on the differential, and the differential lock is fixed with the differential.
As a preferable technical scheme, after the differential lock combining sleeve moves to the meshing position, the spherical end of the differential lock spring pin is contacted with the end surface of the half bevel gear.
As a preferable technical scheme, when the differential mechanism and the half axle bevel gear rotate relatively and rotate to the state that the differential lock spring pin is aligned with the pin hole in the half axle bevel gear, the differential lock spring ejects the differential lock spring pin, and meshing of the differential lock spring pin and the half axle bevel gear is completed.
When an agricultural machine falls into a soil pit to cause the idle running of one wheel of the differential lock with the traditional structure, the differential lock not only needs to be operated manually for many times, but also needs to be decelerated or stopped greatly to complete the meshing of the differential lock, a differential mechanism and a side gear. Especially when the agricultural machinery is unmanned, when using actuating mechanism manipulation such as electronic or hydraulic pressure, be difficult to have the feedback effect like manual operation, lead to the unable meshing of differential lock, greatly reduced the work efficiency of agricultural machinery.
By adopting the technical scheme, the mode of combining the differential lock spring pin and the differential lock spring is adopted at the differential lock pin part; the advantages are that: under the condition that the agricultural machinery is unmanned, when the vehicle normally works, the differential lock is separated, the differential mechanism and the half axle gear rotate in a differential mode, the left wheel and the right wheel of the agricultural machinery can have different rotating speeds, and the normal work of the agricultural machinery is not influenced. If the agricultural machinery sinks into a soil pit to cause the idle running of wheels, the differential lock is meshed, the spherical end face of the spring pin of the differential lock penetrates through the pin hole in the differential mechanism shell and is propped against the end face of the bevel gear of the half axle, and at the moment, the other end of the spring pin of the differential lock tightly presses the spring of the differential lock. Along with the relative rotation of the differential case and the half axle gear, when the ball end surface of the differential lock spring pin moves to the pin hole position on the end surface of the half axle gear, the compressed differential lock spring pops the differential lock spring pin out, so that the differential lock can be automatically engaged with the differential and the half axle bevel gear without substantial speed reduction or parking, and the working efficiency is greatly improved. On the other hand, the differential lock with the traditional structure can be meshed with the differential mechanism and the half-axle bevel gear only through multiple operations, and particularly under the condition of no driver, the meshing is difficult to succeed, and the contact surface of the half-axle bevel gear is extremely easy to damage through multiple contact collisions. The novel differential lock can complete matching at one time, and multiple times of collision damage and half axle gears are avoided.
Drawings
FIG. 1 is a cross-sectional view of a differential lock for use on an unmanned agricultural machine;
FIG. 2 is a perspective view of a differential lock for use with an unmanned agricultural machine;
FIG. 3 is a partial cross-sectional view of a differential lock for use on an unmanned agricultural machine;
in the figure: 1-differential lock combination sleeve, 2-differential lock pin shaft spring sleeve, 3-differential lock spring, 4-differential lock spring pin, 5-differential mechanism shell, 6-half shaft bevel gear and 7-transmission shaft; 8-planetary bevel gear.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
As shown in figures 1-3, a differential lock applied to an unmanned agricultural machine is arranged on a differential mechanism, a differential lock combining sleeve 1 is arranged on one side of the differential lock, and a differential lock spring assembly is arranged on the differential lock combining sleeve 1. Differential mechanism includes differential mechanism casing 5, differential mechanism casing 5 internally mounted has transmission shaft 7, the cover is equipped with bevel pinion 8 on the transmission shaft 7, differential mechanism casing 5 is inside to be provided with half shaft bevel gear 6, bevel pinion 8 meshes with half shaft bevel gear 6.
Differential lock spring assembly is including fixed setting on differential lock combination cover 1: differential lock round pin axle spring housing 2, differential lock spring 3 and differential lock spring catch 4.
The number of the differential lock pin shaft spring sleeves 2 is multiple, the differential lock spring pins 4 and the differential lock springs 3 are arranged in the differential lock pin shaft spring sleeves 2, and the non-spherical end of each differential lock spring pin 4 is installed together with the corresponding differential lock spring 3.
And pin holes for accommodating the differential lock spring pins 4 are formed in the differential case 5 and the half bevel gear 6.
The contact end of the differential lock spring pin 4 and the differential half shaft bevel gear 6 is a spherical surface, and the other end of the differential lock spring pin is a plane; the inner wall of the pin hole is a cambered surface.
The contact end of the differential lock spring pin 4 and the half shaft bevel gear 6 is a spherical surface; the inner wall of the pin hole is designed to be a cambered surface, and the half shaft bevel gear 6 adopts a cambered surface contact surface. The instant impact of the meshing of the differential lock, the differential mechanism and the half shaft bevel gear 6 is small, and the abrasion is favorably reduced.
When the differential lock is meshed, the spring pin 4 of the differential lock penetrates through a pin hole on the differential mechanism, and the differential lock is fixed with the differential mechanism.
After the differential lock spring pin 4 moves to the meshing position in the differential lock combining sleeve 1, the spherical end of the differential lock spring pin 4 is in contact with the half bevel gear 6.
With the relative rotation of the differential lock spring pin 4 and the half-shaft bevel gear 6, when the differential lock spring pin 4 and the pin hole on the half-shaft bevel gear 6 are aligned, the differential lock spring 3 ejects the differential lock spring pin 4, and the meshing of the differential lock spring pin 4 and the half-shaft bevel gear 6 is completed.
When the differential lock is required to act, the differential lock is pushed to a meshing position through manual, electric, hydraulic or pneumatic control structures and the like, and the spherical end surface of the spring pin 4 of the differential lock penetrates through a pin hole in the differential shell 5; under the action of the differential lock pin shaft spring sleeve 2 and the differential lock spring 3, the spherical end of the differential lock spring pin 4 is tightly pressed with the end surface of the half shaft bevel gear 6. At this time, the differential lock spring 3 is compressed, so that the compression force acted by the spring 3 is always maintained between the spherical end of the differential lock spring pin 4 and the end surface of the half bevel gear 6; with the relative rotation of the differential case 5 and the half-shaft bevel gear 6, when the differential lock spring pin 4 and the pin hole on the half-shaft bevel gear 6 are aligned, the differential lock spring pin 4 and the half-shaft bevel gear 6 are engaged under the acting force of the differential lock spring 3; at this time, the half-shaft bevel gear 6 is fixed relative to the differential case 5, and the left and right half shafts achieve the same power distribution.
When the agricultural vehicle normally runs, the differential lock is separated, and at the moment, the differential mechanism half shaft bevel gear can rotate in a differential mode.
When the vehicle falls into a pit to cause the idle running of one wheel, the differential lock is operated to engage in order to successfully complete the escape.
The differential lock spring pin 4 passes through a pin hole of the differential case 5 under the action of the operating mechanism, the spherical end surface of the differential lock spring pin is propped against the end surface of the half shaft bevel gear 6, the differential lock spring 3 is tightly pressed by the other end of the differential lock spring pin, and the differential lock spring 3 reacts on the differential lock spring pin 4 to form elasticity. With the relative rotation of the differential case 5 and the half bevel gear 6, when the differential lock spring pin 4 moves to the pin hole position on the half bevel gear 6, the front end surface of the half bevel gear 6 does not block, the differential lock spring 3 ejects the differential lock spring pin 4, and the meshing of the half bevel gear 6 and the differential lock spring pin 4 is completed. At this time, the differential lock spring pin 4 fixes the differential case 5 and the half bevel gear 6, and the differential lock is engaged with the differential and the half bevel gear 6, so that the differential case 5 and the half bevel gear 6 maintain the same rotational speed. Therefore, when one of the left wheel and the right wheel idles, the differential lock connects the two wheels together, and the power of the wheels on the two sides is evenly distributed, so that the agricultural vehicle can obtain the normal running capability, thereby completing the escaping.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, and the scope of protection is still within the scope of the utility model.
Claims (5)
1. The utility model provides a be applied to differential lock on unmanned agricultural machine which characterized in that: the differential lock is installed on the differential mechanism, differential lock one side is provided with differential lock joint cover, install differential lock spring unit on the differential lock joint cover, the differential mechanism includes the differential mechanism casing, differential mechanism casing internally mounted has the transmission shaft, the cover is equipped with planetary bevel gear on the transmission shaft, differential mechanism casing inside is provided with half axle bevel gear, planetary bevel gear and half axle bevel gear meshing, differential lock spring unit is including the fixed differential lock round pin axle spring housing that sets up on differential lock joint cover, the quantity of differential lock round pin axle spring housing is a plurality of, and is a plurality of all be provided with differential lock spring pin in the differential lock round pin axle spring housing, differential lock spring pin one side cover is equipped with the differential lock spring, all be provided with the pinhole that is used for holding the differential lock spring pin on differential mechanism casing and the half axle bevel gear.
2. A differential lock for use on an unmanned agricultural machine, as claimed in claim 1, wherein: the contact end of the differential lock spring pin and the differential half shaft bevel gear is a spherical surface, the other end of the differential lock spring pin is a plane, and the inner wall of the pin hole is a cambered surface.
3. A differential lock for use on an unmanned agricultural machine, as claimed in claim 1, wherein: when the differential lock is meshed, the spring pin of the differential lock penetrates through the pin hole, and the differential lock is fixed with the differential mechanism.
4. A differential lock for use on an unmanned agricultural machine, according to claim 3, wherein: after the differential lock spring pin moves to the meshing position through the differential lock combination sleeve, the spherical end of the differential lock spring pin is in contact with the end face of the half shaft bevel gear.
5. A differential lock for use on an unmanned agricultural machine, as claimed in claim 1, wherein: the differential mechanism and the half-shaft bevel gear rotate relatively, when the differential mechanism rotates to the point that the spherical end surface of the differential lock spring pin is aligned with the pin hole in the end surface of the half-shaft bevel gear, the differential lock spring pops up the differential lock spring pin, and meshing of the differential lock spring pin and the half-shaft bevel gear is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121252764.1U CN216895631U (en) | 2021-06-04 | 2021-06-04 | Be applied to differential lock on unmanned agricultural machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121252764.1U CN216895631U (en) | 2021-06-04 | 2021-06-04 | Be applied to differential lock on unmanned agricultural machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216895631U true CN216895631U (en) | 2022-07-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121252764.1U Active CN216895631U (en) | 2021-06-04 | 2021-06-04 | Be applied to differential lock on unmanned agricultural machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216895631U (en) |
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2021
- 2021-06-04 CN CN202121252764.1U patent/CN216895631U/en active Active
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