CN214523204U - Front drive axle for tractor - Google Patents
Front drive axle for tractor Download PDFInfo
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- CN214523204U CN214523204U CN202023203033.6U CN202023203033U CN214523204U CN 214523204 U CN214523204 U CN 214523204U CN 202023203033 U CN202023203033 U CN 202023203033U CN 214523204 U CN214523204 U CN 214523204U
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Abstract
The utility model provides a front drive axle for tractor, it includes: the front drive axle shell and the left tail end drive system are used for containing the central drive system, the left tail end shell and the right tail end drive system are used for containing the left tail end drive system, the right tail end shell is used for containing the right tail end drive system, the left vertical shaft shell and the right vertical shaft shell are arranged at two ends of the front drive axle and are connected with the front drive axle, and the limiting mechanism is used for limiting the steering angle of the front drive axle and is arranged on the left vertical shaft shell and the right vertical shaft shell. The limiting mechanism comprises a first limiting bolt, a first limiting nut, a second limiting bolt, a second limiting nut and a third limiting bolt, a third limiting nut, a fourth limiting bolt and a fourth limiting nut, wherein the first limiting bolt, the first limiting nut, the second limiting bolt and the second limiting nut are arranged on the left vertical shaft shell, and the third limiting bolt, the third limiting nut, the fourth limiting bolt and the fourth limiting nut are arranged on the right vertical shaft shell.
Description
Technical Field
The utility model belongs to the technical field of agricultural implement design technique and specifically relates to a tractor front drive axle.
Background
In the prior art, when a front drive axle of a domestic tractor turns, the left side and the right side of the front drive axle are limited by only one bolt, the tractor usually turns in the field for multiple times during operation, and after long-time operation, the limitation reliability of the turning angle of the front drive axle of the tractor cannot be ensured. Therefore, there is a need to provide a new steering angle limiting structure for a front drive axle of a tractor, which can improve the reliability of the limiting of the steering angle of the front drive axle of the tractor during steering to overcome the above-mentioned drawbacks.
Disclosure of Invention
The utility model aims at providing a tractor front drive axle with brand-new tractor front drive axle steering angle limit structure.
According to an aspect of the utility model, a front drive axle for tractor, a serial communication port, include:
a central transmission system;
a front drive axle housing to house the central drive train;
a left end drive train;
a left tip housing to house the left tip drive train, the left tip housing rotatable relative to the front transaxle housing;
a right end drive train;
a right end housing for receiving the right end drive train, the right end housing rotatable relative to the front drive axle housing;
the left vertical shaft shell is arranged at the left end of the front drive axle and connects the left tail end shell with the front drive axle;
the right vertical shaft shell is arranged at the right end of the front drive axle and connects the right tail end shell with the front drive axle;
the left end shell comprises a left end shell body and a right end shell body, and the left end shell body is provided with a first limiting mechanism and a second limiting mechanism which are used for limiting the steering angle of the left end shell body.
Further, when the left and right terminal housings are rotated to the first limit position to the left, the left terminal housing contacts the first limit structure to prevent further rotation;
further, when the left end shell and the right end shell rotate rightwards to a second limit position, the left end shell is in contact with the second limit structure to prevent further rotation.
Further, the front drive axle comprises a left end universal joint for transmitting the power of the central transmission system to the left end transmission system, and the left end shell can rotate in any direction by taking the left end universal joint as a circle center; the front drive axle further comprises a right-side tail end universal joint which transmits the power of the central transmission system to the right-side tail end transmission system, and the right-side tail end shell can rotate in any direction by taking the right-side tail end universal joint as a circle center.
Furthermore, the front drive axle further comprises a third limiting mechanism and a fourth limiting mechanism, the first limiting mechanism and the second limiting mechanism are arranged on the left vertical shaft shell, and the third limiting mechanism and the fourth limiting mechanism are arranged on the right vertical shaft shell.
Further, first stop gear includes first spacing bolt and first stop nut, second stop gear includes second stop bolt and second stop nut, third stop gear includes third stop bolt and third stop nut, fourth stop gear includes fourth stop bolt and fourth stop nut, first stop bolt is connected with first stop nut, second stop bolt is connected with second stop nut, third stop bolt is connected with third stop nut, fourth stop bolt is connected with fourth stop nut, first stop bolt, second stop bolt, third stop bolt and fourth stop bolt all set up along the horizontal direction.
Further, when the left end shell and the right end shell rotate to a first limit position to the left, the left end shell is in contact with the first limit bolt, and the right end shell is in contact with the fourth limit bolt.
Further, when the left end shell and the right end shell rotate rightwards to a second limit position, the left end shell is in contact with the second limit bolt, and the right end shell is in contact with the third limit bolt.
Further, the left vertical shaft shell and the right vertical shaft shell comprise connecting parts which are in matched connection with the first limiting mechanism, the second limiting mechanism, the third limiting mechanism and the fourth limiting mechanism, and the connecting parts are provided with round hole parts for the first limiting bolt, the second limiting bolt, the third limiting bolt and the fourth limiting bolt to penetrate through.
Further, the first limiting bolt is matched with the first limiting nut to control the extending length of the first limiting bolt, the second limiting bolt is matched with the second limiting nut to control the extending length of the second limiting bolt, the third limiting bolt is matched with the third limiting nut to control the extending length of the third limiting bolt, and the fourth limiting bolt is matched with the fourth limiting nut to control the extending length of the fourth limiting bolt.
Further, the front driving axle further comprises a swing seat for mounting the front driving axle, a connecting piece for connecting the front driving axle and the swing seat and a bracket arranged above the front driving axle and used for fixing the swing seat, wherein the connecting piece comprises a fifth limiting bolt and a fifth limiting nut.
Furthermore, the swing seat comprises a first swing seat and a second swing seat, and the front drive axle further comprises a lining arranged on the inner surface of the swing seat and an anti-friction gasket arranged between the front drive axle and the swing seat.
Furthermore, the front drive axle further comprises a small bevel gear shaft for inputting power to the front drive axle and a steering oil cylinder for realizing the steering function of the front drive axle, wherein the steering oil cylinder and the small bevel gear shaft are arranged on the same side and are positioned above the small bevel gear shaft.
Preferably, the steering cylinder comprises a left steering joint and a right steering joint which are respectively arranged at two sides of the steering cylinder.
Further, the front drive axle further comprises a left side fixing lug and a right side fixing lug, wherein the left side fixing lug and the right side fixing lug are arranged on the left tail end shell respectively, and the left side fixing lug and the right side fixing lug are connected with the left side steering joint and the right side steering joint respectively.
Further, the left end transmission system and the right end transmission system comprise vertical shafts arranged in the left vertical shaft shell and the right vertical shaft shell, vertical shaft seats sleeved on the vertical shafts, end covers arranged above the vertical shaft seats and locking mechanisms for hermetically connecting the left vertical shaft shell and the right vertical shaft shell with the vertical shaft seats.
Furthermore, the locking mechanism comprises a sixth limiting bolt, a sixth limiting nut connected with the sixth limiting bolt, and a steel ball arranged between the vertical shaft seat and the sixth limiting bolt.
The utility model provides a pair of tractor front drive axle with brand-new tractor front drive axle steering angle limit structure can effectively improve the spacing reliability of the steering angle of tractor front drive axle when turning to.
Drawings
The invention will be described in further detail with reference to the following drawings and embodiments:
FIG. 1 is a schematic structural view of a front drive axle of the tractor of the present invention;
FIG. 2 is a diagram of the internal transmission path of the front drive axle of the tractor;
FIG. 3 is a left end drive train configuration view;
FIG. 4 is a structural view of the differential system;
FIG. 5 is a construction view of a planetary gear mechanism;
FIG. 6 is a schematic view of the front drive axle mounted to the bracket.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
For the sake of simplicity, the drawings only schematically show the parts relevant to the present invention, and they do not represent the actual structure as a product. In addition, in order to make the drawings concise and understandable, components having the same structure or function in some of the drawings are only schematically illustrated or only labeled. In this document, "one" means not only "only one" but also a case of "more than one".
It should be further understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.
In this context, it is to be understood that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, in the description of the present application, the terms "first", "second", and the like are used only for distinguishing the description, and are not intended to indicate or imply relative importance.
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following description will be made with reference to the accompanying drawings. It is obvious that the drawings in the following description are only some examples of the invention, and that for a person skilled in the art, other drawings and embodiments can be derived from them without inventive effort.
Referring to fig. 1 to 3, the present invention provides a front drive axle for a tractor, which includes: the central transmission system 2, a front drive axle housing A and a left end drive system 1 for accommodating the central transmission system, a left end housing 1A and a right end drive system 3 for accommodating the left end drive system 1, a right end housing 3A for accommodating the right end drive system 3, a left vertical shaft housing 1B and a right vertical shaft housing 3B which are arranged at two ends of the front drive axle and connected with the front drive axle, and a left end universal joint and a right end universal joint (not labeled) for respectively transmitting the power of the central transmission system 2 to the left end drive system 1 and the right end drive system 3, wherein the left end housing 1A and the right end housing 3A can respectively rotate in any direction by taking the left end universal joint and the right end universal joint as the circle center.
The left end transmission system 1 comprises a left vertical shaft 14 arranged in the left vertical shaft shell 1B, a left vertical shaft seat B sleeved on the left vertical shaft 14, an end cover 2B arranged above the left vertical shaft seat B and a locking mechanism 17 for hermetically connecting the left vertical shaft shell 1B and the left vertical shaft seat B.
The locking mechanism 17 includes a sixth limiting bolt 171, a sixth limiting nut 172 connected to the sixth limiting bolt 171, and a steel ball 173 disposed between the left vertical shaft seat b and the sixth limiting bolt 171. The steel ball 173 in the end cover 2B is pressed tightly by adjusting the depth of the sixth limiting bolt 171 above the end cover 2B, so that the effect of tightly connecting the left vertical shaft seat B and the left vertical shaft shell 3B is achieved. The right end transmission system 3 has the same structure as the left end transmission system 1, and will not be described here.
The central transmission system 2 comprises a small bevel gear shaft 20 for inputting power, a central transmission large bevel gear 21 and a differential system 2A, and the differential system 2A comprises a differential shell 24.
Referring to fig. 2, 4 and 5, the differential system 2A of the present embodiment further includes a planetary gear structure 25, a left transmission half shaft 22 and a right transmission half shaft 23, which are disposed inside the differential case 24, and the planetary gear structure 25 includes a first planetary gear mechanism 251, a second planetary gear mechanism 252, a third planetary gear mechanism 253, a fourth planetary gear mechanism 254 and a sleeve 255. The fourth planetary gear mechanism 254 includes a planetary gear 2541, a long planetary gear shaft 2543, a planetary gear fixing pin 2542; the third planetary gear mechanism 253 comprises a planetary gear 2541, a short planetary gear shaft 2533 and a planetary gear fixing pin 2542; the second planetary gear mechanism 252 includes a planetary gear 2541 (not shown), a short planetary gear shaft 2533 (not shown), and a planetary gear fixing pin 2542 (not shown); the first planetary gear mechanism 251 includes a planetary gear 2541 (not shown), a long planetary gear shaft 2543 (not shown), and a planetary gear fixing pin 2542 (not shown). The long pinion shaft 2543 and the short pinion shaft 2533 are connected by a sleeve 255, and are fixed to the differential case 24 by a pinion fixing pin 2542.
The pinion shaft 20 projects into a differential housing 24, said pinion shaft 20 being connected in rotation to said differential housing 24. The power is transmitted to the central transmission large bevel gear 21 from the small bevel gear shaft 20, the central transmission large bevel gear 21 outputs the power to the left transmission half shaft 22 and the right transmission half shaft 23 through the planet gear structure 25, and then the power is transmitted to the left tail end transmission system 1 and the right tail end transmission system 3 through the left transmission half shaft 22 and the right transmission half shaft 23 respectively so as to realize the transmission of the torque. The present embodiment will explain the transmission route after power is transmitted to the left end transmission system 1 and the right end transmission system 3 by taking the left end transmission system 1 as an example only.
Referring to fig. 2 and 3, the left end drive system 1 includes a primary end drive gear 16, a primary end driven gear 15, a left vertical shaft 14 disposed inside the left vertical shaft housing 1B, a secondary end drive gear 11, a secondary end driven gear 12, and a drive shaft 13. The power input by the left transmission half shaft 22 is transmitted to the primary end driving gear 16, the primary end driven gear 15, the left vertical shaft 14, the secondary end driving gear 11, the secondary end driven gear, 12 in turn, and finally output to the driving shaft 13.
Referring to fig. 1, the front axle further includes a first limiting mechanism 4a and a second limiting mechanism 4B disposed on the left vertical shaft housing 1B and a third limiting mechanism 4c and a fourth limiting mechanism 4d disposed on the right vertical shaft housing 3B for limiting a steering angle of the front axle. The first limiting mechanism 4a comprises a first limiting bolt 41 and a first limiting nut 42; the second limiting mechanism 4b comprises a second limiting bolt 43 and a second limiting nut 44; the third limiting mechanism 4c comprises a third limiting bolt 46 and a third limiting nut 45; the fourth limiting mechanism 4d includes a fourth limiting bolt 47 and a fourth limiting nut 48. The first limiting bolt 41 is connected with the first limiting nut 42, the second limiting bolt 43 is connected with the second limiting nut 44, the third limiting bolt 46 is connected with the third limiting nut 45, and the fourth limiting bolt 47 is connected with the fourth limiting nut 48. The first limiting bolt 41, the second limiting bolt 43, the third limiting bolt 46 and the fourth limiting bolt 47 are all arranged along the horizontal direction.
The left vertical shaft housing 1B and the right vertical shaft housing 3B include a connecting portion 49 connected to the first limiting mechanism 4a, the second limiting mechanism 4B, the third limiting mechanism 4c, and the fourth limiting mechanism 4d in a fitting manner, and the connecting portion 49 is provided with a circular hole portion 491 for the first limiting bolt 41, the second limiting bolt 43, the third limiting bolt 46, and the fourth limiting bolt 47 to pass through. The first limit bolt 41 is matched with the first limit nut 42 to control the extension length of the first limit bolt 41, the second limit bolt 43 is matched with the second limit nut 44 to control the extension length of the second limit bolt 43, the third limit bolt 46 is matched with the third limit nut 45 to control the extension length of the third limit bolt 46, and the fourth limit bolt 47 is matched with the fourth limit nut 48 to control the extension length of the fourth limit bolt 48.
When the left end shell 1A and the right end shell 3A rotate to the first limit position to the left, the outer surface of the left end shell 1A contacts with the first limit bolt 41, and the right end shell 3A contacts with the fourth limit bolt 47; when the left end shell 1A and the right end shell 3A rotate rightwards to the second limit position, the outer surface of the left end shell 1A contacts with the second limit bolt 43, and the right end shell 3A contacts with the third limit bolt 46. In this embodiment, the first and second limiting mechanisms 4a, 4B are disposed on the left vertical shaft housing and the third and fourth limiting mechanisms 4c, 4d are disposed on the right vertical shaft housing 3B, and in other embodiments, the first and second limiting mechanisms 4a, 4B may be disposed on the left tip housing 1A and the third and fourth limiting mechanisms 4c, 4d may be disposed on the right tip housing 3A.
Referring to fig. 1 and 5, the front driving axle further includes a swing seat 5 for mounting the front driving axle, a connecting member 6 for connecting the front driving axle and the swing seat 5, and a bracket 10 disposed above the front driving axle for fixing the front driving axle and the swing seat 5, wherein the connecting member 6 includes a limit bolt 61 and a limit nut 62.
The swing seat 5 comprises a first swing seat 51 and a second swing seat 52, and the front driving axle further comprises a lining 8 arranged on the inner surface of the swing seat 5 and an antifriction gasket 9 arranged between the front driving axle and the swing seat 5.
The front drive axle further comprises a steering oil cylinder 7 for realizing the steering function of the front drive axle, a left steering joint 71 and a right steering joint 74 which are respectively arranged at two sides of the steering oil cylinder 7, a left ball head 73 and a right ball head 76, and a left oil cylinder nut 72 and a right oil cylinder nut 75. The steering oil cylinder 7 is arranged on one side of the small bevel gear shaft 20 and is positioned above the small bevel gear shaft 20.
The front drive axle further comprises a left side fixing lug 1A and a right side fixing lug 3A which are respectively arranged on the left end shell 1A and the right end shell 3A, and the left side fixing lug 1A and the right side fixing lug 3A are respectively connected with the left side steering joint 71 and the right side steering joint 74.
It will be apparent to those skilled in the art that various modifications and variations can be made to the above-described exemplary embodiments of the present invention without departing from the spirit and scope of the invention. Thus, it is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.
Claims (10)
1. A front drive axle for a tractor, comprising:
a central transmission system;
a front drive axle housing to house the central drive train;
a left end drive train;
a left tip housing to house the left tip drive train, the left tip housing rotatable relative to the front transaxle housing;
a right end drive train;
a right end housing for receiving the right end drive train, the right end housing rotatable relative to the front drive axle housing;
the left vertical shaft shell is arranged at the left end of the front drive axle and connects the left tail end shell with the front drive axle;
the right vertical shaft shell is arranged at the right end of the front drive axle and connects the right tail end shell with the front drive axle;
the first limiting mechanism and the second limiting mechanism are used for limiting the steering angle of the left tail end shell;
when the left and right terminal shells rotate to a first limit position leftwards, the left terminal shell is contacted with the first limit structure to prevent further rotation;
when the left end shell and the right end shell rotate rightwards to the second limit position, the left end shell is in contact with the second limit structure to prevent further rotation.
2. The front drive axle of claim 1, wherein:
the front drive axle comprises a left end universal joint which transmits the power of the central transmission system to the left end transmission system, and the left end shell can rotate in any direction by taking the left end universal joint as a circle center;
the front drive axle further comprises a right-side tail end universal joint which transmits the power of the central transmission system to the right-side tail end transmission system, and the right-side tail end shell can rotate in any direction by taking the right-side tail end universal joint as a circle center.
3. The front drive axle of claim 1, wherein:
the front drive axle further comprises a third limiting mechanism and a fourth limiting mechanism, the first limiting mechanism and the second limiting mechanism are arranged on the left vertical shaft shell, and the third limiting mechanism and the fourth limiting mechanism are arranged on the right vertical shaft shell.
4. The front drive axle of claim 3, wherein:
the first limiting mechanism comprises a first limiting bolt and a first limiting nut, the second limiting mechanism comprises a second limiting bolt and a second limiting nut, the third limiting mechanism comprises a third limiting bolt and a third limiting nut, the fourth limiting mechanism comprises a fourth limiting bolt and a fourth limiting nut, the first limiting bolt is connected with the first limiting nut, the second limiting bolt is connected with the second limiting nut, the third limiting bolt is connected with the third limiting nut, the fourth limiting bolt is connected with the fourth limiting nut, and the first limiting bolt, the second limiting bolt, the third limiting bolt and the fourth limiting bolt are all arranged along the horizontal direction;
when the left end shell and the right end shell rotate to a first limit position leftwards, the left end shell is contacted with the first limit bolt, and the right end shell is contacted with the fourth limit bolt;
when the left tail end shell and the right tail end shell rotate rightwards to a second limit position, the left tail end shell is in contact with the second limit bolt, and the right tail end shell is in contact with the third limit bolt;
the left vertical shaft shell and the right vertical shaft shell comprise connecting parts which are in matched connection with the first limiting mechanism, the second limiting mechanism, the third limiting mechanism and the fourth limiting mechanism, and the connecting parts are provided with round hole parts for the first limiting bolt, the second limiting bolt, the third limiting bolt and the fourth limiting bolt to pass through;
the first limiting bolt is matched with the first limiting nut to control the extending length of the first limiting bolt, the second limiting bolt is matched with the second limiting nut to control the extending length of the second limiting bolt, the third limiting bolt is matched with the third limiting nut to control the extending length of the third limiting bolt, and the fourth limiting bolt is matched with the fourth limiting nut to control the extending length of the fourth limiting bolt.
5. The front drive axle of claim 1, wherein:
the front drive axle further comprises a swing seat for mounting the front drive axle, a connecting piece for connecting the front drive axle and the swing seat, and a bracket arranged above the front drive axle and used for fixing the swing seat, wherein the connecting piece comprises a fifth limiting bolt and a fifth limiting nut;
the swing seat comprises a first swing seat and a second swing seat, and the front drive axle further comprises a lining arranged on the inner surface of the swing seat and an antifriction gasket arranged between the front drive axle and the swing seat.
6. The front drive axle of claim 1, wherein:
the front drive axle also comprises a small bevel gear shaft for inputting power to the front drive axle and a steering oil cylinder for realizing the steering function of the front drive axle, and the steering oil cylinder and the small bevel gear shaft are arranged on the same side and are positioned above the small bevel gear shaft;
the steering oil cylinder comprises a left steering joint and a right steering joint which are respectively arranged on two sides of the steering oil cylinder.
7. The front drive axle of claim 6, wherein:
the front drive axle further comprises a left side fixing lug and a right side fixing lug, the left side fixing lug and the right side fixing lug are arranged on the left end shell and the right end shell respectively, and the left side fixing lug and the right side fixing lug are connected with the left side steering joint and the right side steering joint respectively.
8. The front drive axle of claim 1, wherein:
the left end transmission system and the right end transmission system comprise vertical shafts arranged in the left vertical shaft shell and the right vertical shaft shell, vertical shaft seats sleeved on the vertical shafts, end covers arranged above the vertical shaft seats and locking mechanisms for hermetically connecting the left vertical shaft shell and the right vertical shaft shell with the vertical shaft seats.
9. The front drive axle of claim 8, wherein:
the locking mechanism comprises a sixth limiting bolt, a sixth limiting nut connected with the sixth limiting bolt and a steel ball arranged between the vertical shaft seat and the sixth limiting bolt.
10. A tractor comprising a front drive axle as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023203033.6U CN214523204U (en) | 2020-12-26 | 2020-12-26 | Front drive axle for tractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023203033.6U CN214523204U (en) | 2020-12-26 | 2020-12-26 | Front drive axle for tractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214523204U true CN214523204U (en) | 2021-10-29 |
Family
ID=78297036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023203033.6U Active CN214523204U (en) | 2020-12-26 | 2020-12-26 | Front drive axle for tractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214523204U (en) |
-
2020
- 2020-12-26 CN CN202023203033.6U patent/CN214523204U/en active Active
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