CN214689743U - Novel high ground clearance tractor front drive axle - Google Patents
Novel high ground clearance tractor front drive axle Download PDFInfo
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- CN214689743U CN214689743U CN202120537435.5U CN202120537435U CN214689743U CN 214689743 U CN214689743 U CN 214689743U CN 202120537435 U CN202120537435 U CN 202120537435U CN 214689743 U CN214689743 U CN 214689743U
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Abstract
A novel high-ground-clearance tractor front drive axle relates to the technical field of mechanical equipment and is used for reducing the difficulty and cost of sealing a steering support part. A novel front drive axle of a high-ground-clearance tractor comprises a front axle shell, a differential assembly arranged in the front axle shell, and two half shafts, wherein each half shaft is in transmission connection with the differential assembly; the tail end transmission case assembly comprises a steering knuckle shell, a tail end shell, a steering vertical shaft and a front driving shaft. The beneficial effects are that, do benefit to lubrication, convenient sealed, simple structure does benefit to reduction in production cost, does benefit to improve equipment stability.
Description
Technical Field
The utility model belongs to the technical field of the vehicle engineering technique and specifically relates to a novel high ground clearance tractor front drive axle.
Background
The existing tractor front drive axle mainly comprises a main reduction gearbox shell, a half-axle sleeve connected to two ends of the main reduction gearbox shell, a steering knuckle, a steering support, a left end transmission assembly, a right end transmission assembly, a synchronous steering pull rod and a double-acting single oil cylinder. The front drive axle has a traditional steering support, a steering knuckle shell and a tail end shell are connected through bolts, and a sliding shaft sleeve or a bearing is required to achieve steering in the steering support; moreover, because the steering support is externally connected and exposed, an oil seal is needed for sealing, and the sealing difficulty is further increased; in order to eliminate the up-and-down movement of the front wheel on the bumpy road section, an axial pre-tightening device is further required inside the steering support to eliminate an axial internal gap. The traditional structure is complex, needs more parts and components and has higher cost.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a novel high ground clearance tractor front drive axle for reduce degree of difficulty and the cost sealed to the steering support part.
The utility model provides a technical scheme that its technical problem adopted is:
a novel front drive axle of a high-ground-clearance tractor comprises a front axle shell, a differential assembly arranged in the front axle shell, and two half shafts, wherein each half shaft is in transmission connection with the differential assembly, and two ends of the front axle shell are connected with a tail end transmission case assembly respectively;
the tail end transmission box assembly comprises a steering knuckle shell, a tail end shell, a steering vertical shaft and a front driving shaft, the steering knuckle shell is connected to the end portion of the front axle shell, the steering knuckle shell comprises a sleeve portion extending downwards, the sleeve portion is rotatably connected into the tail end shell, the steering vertical shaft is sleeved in the sleeve portion in a penetrating mode, the tail end shell is overlapped with the axis of the steering vertical shaft around the rotating axis of the sleeve portion, the front driving shaft is rotatably connected to the tail end shell, a first bevel gear is connected to the half shaft, a second bevel gear is arranged at the upper end of the steering vertical shaft and meshed with the first bevel gear, a third bevel gear is arranged at the lower end of the steering vertical shaft, a fourth bevel gear is arranged on the front driving shaft, and the third bevel gear is meshed with the fourth bevel gear;
the first bevel gear and the second bevel gear are positioned in an inner cavity of the steering knuckle housing, and the third bevel gear and the fourth bevel gear are positioned in an inner cavity of the tail end housing;
the whole steering vertical shaft is positioned on the lower side of the half shaft, and the second bevel gear is positioned on the lower side of the first bevel gear;
the upper end of the steering knuckle shell is sealed, and the steering knuckle shell is of an integrated forming structure.
Furthermore, the knuckle shell is detachably connected to the front axle shell, and a steering driving mechanism is arranged between the tail end shell and the front axle shell.
Further, the end of the tip housing includes a tip cap that can be detached.
Further, the bottom of the tip housing includes a bottom sealing cover.
Furthermore, an upper side shaft shoulder and a lower side shaft shoulder are arranged on the outer ring of the sleeve portion, an upper bearing and a lower bearing are sleeved on the sleeve portion, the upper end of the upper bearing is matched with the lower end of the upper side shaft shoulder, the upper end of the lower bearing is matched with the lower end of the lower side shaft shoulder, a stop block is arranged in the tail end shell and matched with the lower end of the lower bearing.
Furthermore, the steering driving mechanism comprises a double-acting oil cylinder and a rocker arm, the double-acting oil cylinder comprises two working shafts, each working shaft is in transmission connection with one rocker arm through a universal joint mechanism, and the other end of each rocker arm is hinged to the tail end shell.
Furthermore, the differential assembly comprises a differential cover, a differential shell and a central large gear, wherein the differential cover is connected with the central large gear through a spline, the differential cover and the differential shell are of an integrated structure, and the central large gear is fixed on the central large gear through an external retainer ring.
The beneficial effects are that:
the beneficial effects of the utility model are that, do benefit to through above-mentioned structure and reduce the axis of front drive shaft, and then do benefit to the height that reduces front wheel, and then do benefit to the distance that improves tractor front drive axle and ground, and then realize front drive axle's highland crack. In the structure, the first bevel gear, the second bevel gear, the third bevel gear, the fourth bevel gear, the steering vertical shaft and other components for transmission are favorably packaged in the steering knuckle shell and/or the tail end shell, so that the number of connection pairs for leakage of the components for steering support and transmission work is reduced, the structure is simplified, and the sealing difficulty is reduced. The utility model has the advantages of simple structure, low sealing difficulty and good lubricating effect. Lubricating oil is filled in the steering knuckle shell and the tail end shell to perform immersion type lubrication work on each rotating component, so that the immersion type lubrication work of the components such as the first bevel gear, the second bevel gear, the third bevel gear, the fourth bevel gear and the steering vertical shaft is facilitated, and the service life is further prolonged. The whole of turning to the vertical scroll is located the downside of semi-axis, the second bevel gear is located the downside of first bevel gear, this does benefit to and guarantees that the whole of second bevel gear, second bevel gear and third bevel gear is soaked in lubricated fluid fully, does benefit to the height that reduces lubricated required fluid, does benefit to abundant lubrication, also does benefit to and reduces sealed cost. The upper end of the knuckle shell is closed, and the knuckle shell is of an integrated forming structure, so that the sealing cost is reduced.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a schematic view of a differential assembly;
in the figure: the hydraulic steering gear comprises a front axle shell 1, a half axle 2, a steering knuckle shell 3, a tail end shell 4, a steering vertical shaft 5, a front driving shaft 6, a sleeve part 7, a first bevel gear 8, a second bevel gear 9, a third bevel gear 10, a fourth bevel gear 11, a tail end big cover 12, a bottom sealing cover 13, an upper side shaft shoulder 14, a lower side shaft shoulder 15, an upper bearing 16, a lower bearing 17, a stop dog 18, a double-acting oil cylinder 19, a rocker arm 20, a differential cover 21, a differential shell 22, a large central gear 23 and an outer retainer ring 24.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in figures 1 and 2, the novel high-ground-clearance tractor front drive axle comprises a front axle shell 1, a differential assembly arranged in the front axle shell 1, two half shafts 2, wherein each half shaft 2 is in transmission connection with the differential assembly, and two ends of the front axle shell 1 are connected with a tail end transmission case assembly respectively.
As shown in fig. 1 and 2, the end gearbox assembly comprises a knuckle housing 3, an end housing 4, a steering stem 5 and a front drive shaft 6. The front driving shaft 6 is used for connecting front wheels, and the front driving shaft 6 is a rotating shaft of the front wheels. A knuckle housing 3 is attached to the end of the front axle housing 1, the knuckle housing 3 including a downwardly extending sleeve portion 7, the sleeve portion 7 being rotatably attached in the tip housing 4 for a steering support function. The steering vertical shaft 5 is sleeved in the sleeve part 7, and the tail end shell 4 is overlapped with the axis of the steering vertical shaft 5 around the rotation axis of the sleeve part 7. The front driving shaft 6 is rotatably connected to the tail end shell 4, the half shaft 2 is connected with a first bevel gear 8, the upper end of the steering vertical shaft 5 is provided with a second bevel gear 9, and the first bevel gear 8 is meshed with the second bevel gear 9. The lower end of the steering vertical shaft 5 is provided with a third bevel gear 10, the front driving shaft 6 is provided with a fourth bevel gear 11, and the third bevel gear 10 is meshed with the fourth bevel gear 11. The first 8 and second 9 bevel gears are located in the inner cavity of the knuckle housing 3 and the third 10 and fourth 11 bevel gears are located in the inner cavity of the tip housing 4. The whole steering vertical shaft 5 is positioned at the lower side of the half shaft 2, and the second bevel gear 9 is positioned at the lower side of the first bevel gear 8; the upper end of the steering knuckle shell is sealed, and the steering knuckle shell is of an integrated forming structure.
As shown in fig. 1 and fig. 2, the beneficial effects of the utility model are that, do benefit to through above-mentioned structure and reduce the axis of front drive shaft 6, and then do benefit to the height that reduces the front wheel, and then do benefit to the distance that improves tractor front drive axle and ground, and then realize front drive axle's highland crack. In the structure, the components used for transmission, such as the first bevel gear 8, the second bevel gear 9, the third bevel gear 10, the fourth bevel gear 11, the steering vertical shaft 5 and the like, are favorably packaged in the steering knuckle shell 3 and/or the tail end shell 4, so that the number of connecting pairs for leakage of the components used for steering support and transmission work is reduced, and the effects of simplifying the structure and reducing the sealing difficulty are achieved. The utility model has the advantages of simple structure, low sealing difficulty and good lubricating effect. Fill lubricating oil in knuckle casing 3 and terminal casing 4 and be used for carrying out the lubricated work of soaking formula for each rotating part, the utility model discloses do benefit to and carry out abundant soaking lubrication to steering vertical scroll 5, second bevel gear 9 and third bevel gear 10, also be favorable to reducing the height of lubricating oil level, save the use amount of lubricating oil. And the sealing difficulty is reduced, and the sealing effect is improved.
As shown in fig. 1 and 2, the knuckle housing 3 is detachably attached to the front axle housing 1, and a steering drive mechanism is provided between the tip end housing 4 and the front axle housing 1. The steering driving mechanism comprises a double-acting oil cylinder 19 and a rocker arm 20, the double-acting oil cylinder 19 comprises two working shafts, each working shaft is in transmission connection with one rocker arm 20 through a universal joint mechanism, and the other end of each rocker arm 20 is hinged to the tail end shell 4; the steering mechanism is favorable for ensuring the steering work to be stable and accurate; compared with the prior accessories such as an external connection type steering support, a sliding shaft sleeve, a steering rocker arm and the like, the steering driving mechanism is simpler and more reasonable, the steering is more portable, and the cost is saved. The tip of terminal casing 4 is including the terminal big lid 12 that can be dismantled, and this is convenient for carry out dismouting maintenance work to terminal transmission case assembly, and it is right to do benefit to the utility model discloses carry out the plant maintenance. The bottom of the end housing 4 includes a bottom sealing cover 13, which facilitates the disassembly and assembly of the apparatus and facilitates the maintenance of the apparatus.
As shown in fig. 1 and 2, the outer ring of the sleeve portion 7 is provided with an upper shoulder 14 and a lower shoulder 15, the sleeve portion 7 is sleeved with an upper bearing 16 and a lower bearing 17, the upper end of the upper bearing 16 is matched with the lower end of the upper shoulder 14, the upper end of the lower bearing 17 is matched with the lower end of the lower shoulder 15, a stopper 18 is arranged in the end housing 4, and the stopper 18 is matched with the lower end of the lower bearing 17. The upper bearing 16 is preferably of the sealed type, whereby sealing of the rotary connection between the end housing 4 and the sleeve portion 7 is achieved, but other sealing measures for the bearing according to the prior art may also be used. The upper side shaft shoulder 14, the lower side shaft shoulder 15, the upper bearing 16, the lower bearing 17 and the stop block 18 are beneficial to improving the supporting effect on steering work and eliminating the up-and-down movement of the front wheel on a bumpy road surface.
As shown in fig. 3, the differential assembly includes a differential cover 21, a differential case 22 and a central large gear 23, the differential cover 21 is connected with the central large gear 23 through a spline, the differential cover 21 and the differential case 22 are of an integrated structure, and the central large gear 23 is fixed on the central large gear 23 through an external retainer ring 24; this is advantageous in reducing the number of connecting members used for connection, and in reducing the processing cost. The differential housing is rotatably connected to a middle portion of the front axle housing by a bearing. The rest of the differential assembly is not described in detail because it belongs to the prior art.
Claims (7)
1. A novel front drive axle of a high-ground-clearance tractor comprises a front axle shell, a differential assembly arranged in the front axle shell, and two half shafts, wherein each half shaft is in transmission connection with the differential assembly;
the tail end transmission box assembly comprises a steering knuckle shell, a tail end shell, a steering vertical shaft and a front driving shaft, the steering knuckle shell is connected to the end portion of the front axle shell, the steering knuckle shell comprises a sleeve portion extending downwards, the sleeve portion is rotatably connected into the tail end shell, the steering vertical shaft is sleeved in the sleeve portion in a penetrating mode, the tail end shell is overlapped with the axis of the steering vertical shaft around the rotating axis of the sleeve portion, the front driving shaft is rotatably connected to the tail end shell, a first bevel gear is connected to the half shaft, a second bevel gear is arranged at the upper end of the steering vertical shaft and meshed with the first bevel gear, a third bevel gear is arranged at the lower end of the steering vertical shaft, a fourth bevel gear is arranged on the front driving shaft, and the third bevel gear is meshed with the fourth bevel gear;
the first bevel gear and the second bevel gear are positioned in an inner cavity of the steering knuckle housing, and the third bevel gear and the fourth bevel gear are positioned in an inner cavity of the tail end housing;
the whole steering vertical shaft is positioned on the lower side of the half shaft, and the second bevel gear is positioned on the lower side of the first bevel gear;
the upper end of the steering knuckle shell is sealed, and the steering knuckle shell is of an integrated forming structure.
2. The front axle of tractor with high ground clearance as claimed in claim 1, wherein said knuckle housing is detachably connected to said front axle housing, and a steering driving mechanism is provided between said end housing and said front axle housing.
3. The front drive axle of the novel high-clearance tractor as claimed in claim 1, wherein the end of the tip housing includes a tip cap that can be removed.
4. The new front drive axle for high clearance tractors of claim 1, wherein the bottom of said tip housing includes a bottom sealing cover.
5. The front drive axle of the novel high ground clearance tractor as claimed in claim 1, wherein the outer ring of the sleeve portion is provided with an upper shoulder and a lower shoulder, the sleeve portion is sleeved with an upper bearing and a lower bearing, the upper end of the upper bearing is matched with the lower end of the upper shoulder, the upper end of the lower bearing is matched with the lower end of the lower shoulder, and the end housing is provided with a stop block which is matched with the lower end of the lower bearing.
6. The front drive axle of the novel high-ground-clearance tractor as claimed in claim 2, wherein the steering driving mechanism comprises a double-acting cylinder and a rocker arm, the double-acting cylinder comprises two working shafts, each working shaft is in transmission connection with one rocker arm through a universal joint mechanism, and the other end of the rocker arm is hinged on the tail end shell.
7. The front drive axle of the novel high-ground-clearance tractor as claimed in claim 1, wherein the differential assembly comprises a differential cover, a differential housing and a central gearwheel, the differential cover is connected with the central gearwheel through a spline, the differential cover and the differential housing are of an integrated structure, and the central gearwheel is fixed on the central gearwheel through an external retainer ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120537435.5U CN214689743U (en) | 2021-03-15 | 2021-03-15 | Novel high ground clearance tractor front drive axle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120537435.5U CN214689743U (en) | 2021-03-15 | 2021-03-15 | Novel high ground clearance tractor front drive axle |
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| Publication Number | Publication Date |
|---|---|
| CN214689743U true CN214689743U (en) | 2021-11-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120537435.5U Active CN214689743U (en) | 2021-03-15 | 2021-03-15 | Novel high ground clearance tractor front drive axle |
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| Country | Link |
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| CN (1) | CN214689743U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117360610A (en) * | 2023-12-08 | 2024-01-09 | 潍坊德佑传动机械有限公司 | Steering trapezoid structure for tractor drive axle |
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2021
- 2021-03-15 CN CN202120537435.5U patent/CN214689743U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117360610A (en) * | 2023-12-08 | 2024-01-09 | 潍坊德佑传动机械有限公司 | Steering trapezoid structure for tractor drive axle |
| CN117360610B (en) * | 2023-12-08 | 2024-02-02 | 潍坊德佑传动机械有限公司 | Steering trapezoid structure for tractor drive axle |
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