Side suspension front drive axle suitable for tractor

Abstract

The utility model relates to a side suspension front drive axle suitable for a tractor, and belongs to the technical field of tractor equipment. Comprising a front axle assembly, a rocker arm mechanism, two hydraulic oil cylinders, a bracket, a transmission supporting mechanism, an energy storage device, a sensor and a control mechanism. The bracket is arranged above the front axle assembly, the two hydraulic oil cylinders are arranged on the two sides of the bracket respectively, the upper ends and the lower ends of the hydraulic oil cylinders are hinged to the bracket and the front axle assembly respectively, the rocker arm mechanism is arranged below the bracket, the two ends of the rocker arm mechanism are hinged to the bracket and the front axle assembly respectively, and the transmission supporting mechanism is connected with the end, away from the rocker arm mechanism, of the front axle assembly. The energy accumulator is installed on the bracket and connected with the hydraulic oil cylinder through a pipeline, the sensor is installed on the bracket and connected with the rocker arm mechanism, and the sensor is connected with the control mechanism. The large rotation angle of the whole machine is achieved, the elevation angle of the whole machine is not affected, the driving comfort is improved, and meanwhile the performance parameters and the safety coefficient of the whole machine are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of tractor equipment, in particular to a side-mounted suspended front drive axle applicable to a tractor. Background Technique

[0002] The existing non-independent suspension structures on the market are mostly applicable to small-horsepower tractors, and the vibration of the whole machine is large, resulting in insufficient driving comfort and seriously affecting the service life of the whole machine. In addition, the large lateral space of the non-independent suspension structure will lead to a reduction in the turning angle of the whole machine and an increase in the elevation angle of the whole machine, resulting in limited vision of the driver in the cab and being unfavorable for safe driving. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is: to provide a side-mounted suspended front drive axle applicable to a tractor to solve the above problems.

[0004] The technical solution of the utility model to solve the above technical problems is as follows: a side-mounted suspended front drive axle applicable to a tractor, comprising: a front axle assembly, a rocker arm mechanism, two hydraulic cylinders, a bracket, a transmission support mechanism, an accumulator, a sensor and a control mechanism; the bracket is arranged above the front axle assembly, the two hydraulic cylinders are respectively arranged on both sides of the bracket, the upper and lower ends of the hydraulic cylinders are respectively hinged to the bracket and the front axle assembly, the rocker arm mechanism is arranged below the bracket and the two ends are respectively hinged to the bracket and the front axle assembly, the transmission support mechanism is connected to one end of the front axle assembly far away from the rocker arm mechanism, the accumulator is installed on the bracket and is connected to the hydraulic cylinder through a pipeline, the sensor is installed on the bracket and is connected to the rocker arm mechanism, and the sensor is connected to the control mechanism.

[0005] The beneficial effect of the utility model is: arranging the rocker arm mechanism below the bracket is beneficial to making the lateral space occupied by the suspended front drive axle structure small, realizing a large turning angle of the whole machine, not affecting the elevation angle of the whole machine, increasing driving comfort while ensuring the performance parameters and safety factor of the whole machine; the cooperation of the sensor, the control mechanism and the hydraulic cylinder is beneficial to ensuring that the ground clearance of the front axle assembly of the tractor remains basically unchanged during driving, avoiding transmitting the undulation of the terrain to the bracket and ensuring driving comfort.

[0006] On the basis of the above technical solution, the utility model can also be improved as follows.

[0007] Further, the rocker arm mechanism includes: a first rocker arm, a second rocker arm and a first transmission shaft, and the first rocker arm and the second rocker arm are hinged through the first transmission shaft.

[0008] The beneficial effects of adopting the above further scheme are as follows: The first rocker arm and the second rocker arm are hinged through the first transmission shaft, which is beneficial to realizing the transmission of power and the swinging of the rocker arm mechanism.

[0009] Further, a hinge seat is provided at one end of the front axle assembly away from the transmission support mechanism, and one end of the first rocker arm away from the first transmission shaft is hinged to the hinge seat.

[0010] The beneficial effects of adopting the above further scheme are as follows: When the front axle assembly undulates with the terrain, it is beneficial to transmit the undulating power to the first rocker arm through the hinge seat.

[0011] Further, one end of the second rocker arm away from the first transmission shaft is hinged to the bracket.

[0012] The beneficial effects of adopting the above further scheme are as follows: When the first rocker arm swings, it is beneficial to transmit the power to the second rocker arm through the first transmission shaft to realize the swinging of the second rocker arm.

[0013] Further, the upper end of the hydraulic cylinder is hinged to the bracket through a second pin shaft.

[0014] The beneficial effects of adopting the above further scheme are as follows: It is beneficial to provide support for the telescopic movement of the hydraulic cylinder, so that the ground clearance of the front axle assembly remains basically unchanged, avoiding transmitting the terrain undulation to the bracket, and ensuring driving comfort.

[0015] Further, the lower end of the hydraulic cylinder is hinged to the front axle assembly through a first pin shaft.

[0016] The beneficial effects of adopting the above further scheme are as follows: It is beneficial to use the telescopic movement of the hydraulic cylinder to keep the ground clearance of the front axle assembly basically unchanged when it undulates with the terrain.

[0017] Further, the transmission support mechanism includes: a universal joint drive shaft, a support shaft, a spherical bearing, a support seat and a second drive shaft; the universal joint drive shaft is arranged on the support shaft, the inner ring of the spherical bearing is connected to the support seat through shaft hole fit, the outer ring is connected to the support shaft through shaft hole fit, and the second drive shaft is connected to the universal joint drive shaft through spline fit.

[0018] The beneficial effects of adopting the above further scheme are as follows: The transmission support mechanism is beneficial to transmitting the power of the tractor to the front drive axle assembly, thereby driving the tractor wheels to move.

[0019] Further, one ends of the universal joint drive shaft and the support shaft away from the second drive shaft are both connected to the front axle assembly.

[0020] The beneficial effects of adopting the above further scheme are as follows: The support shaft is beneficial to providing support for the universal joint drive shaft, and the universal joint drive shaft is beneficial to transmitting the power of the engine to the front axle assembly.

[0021] Further, a hydraulic valve group is arranged on the pipeline connecting the energy accumulator and the hydraulic cylinder, and the hydraulic valve group is connected to the control mechanism.

[0022] The beneficial effects of adopting the above further scheme are as follows: The connection between the hydraulic valve group and the control mechanism is beneficial for the control mechanism to judge the position change between the rocker arm and the bracket through the signal transmitted by the angle sensor, and then control the opening and closing of the hydraulic valve group to realize the telescoping of the suspension cylinder.

[0023] Further, both ends of the front axle assembly are respectively connected to the wheels through bolts.

[0024] The beneficial effects of adopting the above further scheme are as follows: The displacement of the wheels on different terrains is beneficial for the rocker arm to swing with the undulation of the terrain. Description of the Drawings

[0025] Figure 1 This is the schematic diagram of the overall structure provided by the embodiment of the present invention Figure 1 ;

[0026] Figure 2 This is the schematic diagram of the overall structure provided by the embodiment of the present invention Figure 2 .

[0027] In the drawings, the list of components represented by each reference numeral is as follows:

[0028] 1. Front axle assembly; 2. Rocker arm mechanism; 3. Hydraulic cylinder; 4. Bracket; 5. Transmission support mechanism; 6. Energy accumulator; 7. First pin shaft; 8. Second pin shaft; 11. Hinge seat; 21. First rocker arm; 22. Second rocker arm; 23. First drive shaft; 51. Universal joint drive shaft; 52. Support shaft; 53. Spherical bearing; 54. Support seat; 55. Second drive shaft. Detailed Embodiments

[0029] The principles and features of the present invention are described below. The examples given are only used to explain the present invention and are not intended to limit the scope of the present invention.

[0030] As Figure 1 and Figure 2As shown in the figure, a side-mounted suspended front drive axle applicable to a tractor includes: a front axle assembly 1, a rocker arm mechanism 2, two hydraulic cylinders 3, a bracket 4, a transmission support mechanism 5, an accumulator 6, a sensor and a control mechanism; the bracket 4 is arranged above the front axle assembly 1, the two hydraulic cylinders 3 are respectively arranged on both sides of the bracket 4, the upper and lower ends of the hydraulic cylinder 3 are respectively hinged to the bracket 4 and the front axle assembly 1, the rocker arm mechanism 2 is arranged below the bracket 4, and both ends are respectively hinged to the bracket 4 and the front axle assembly 1, the transmission support mechanism 5 is connected to one end of the front axle assembly 1 away from the rocker arm mechanism 2, the accumulator 6 is installed on the bracket 4 and is connected to the hydraulic cylinder 3 through a pipeline, the sensor is installed on the bracket 4 and is connected to the rocker arm mechanism 2, and the sensor is connected to the control mechanism.

[0031] Among them, it should be noted that: in the technical solution of the present invention, the control mechanism is an existing control software, and the signal transmission between the control mechanism and the sensor and the control of the hydraulic cylinder 3 both belong to the prior art.

[0032] The beneficial effects of the present invention are: setting the rocker arm mechanism below the bracket is beneficial to making the lateral space occupied by the suspended front drive axle structure small, enabling the whole machine to have a large turning angle, not affecting the elevation angle of the whole machine, increasing driving comfort, and at the same time ensuring the performance parameters and safety factor of the whole machine; the cooperation of the sensor, the control mechanism and the hydraulic cylinder is beneficial to ensuring that the ground clearance of the front axle assembly of the tractor remains basically unchanged during driving, avoiding transmitting the undulation of the terrain to the bracket, and ensuring driving comfort.

[0033] Preferably, as Figure 1 shown, the rocker arm mechanism 2 includes: a first rocker arm 21, a second rocker arm 22 and a first transmission shaft 23, and the first rocker arm 21 and the second rocker arm 22 are hinged through the first transmission shaft 23.

[0034] The beneficial effect of adopting the above preferred solution is: the first rocker arm and the second rocker arm are hinged through the first transmission shaft, which is beneficial to realizing the transmission of power and the swing of the rocker arm mechanism.

[0035] Preferably, as Figure 1 shown, an articulated seat 11 is arranged at one end of the front axle assembly 1 away from the transmission support mechanism 5, and one end of the first rocker arm 21 away from the first transmission shaft 23 is hinged to the articulated seat 11.

[0036] The beneficial effect of adopting the above preferred solution is: it is beneficial to transmit the undulation power to the first rocker arm through the articulated seat when the front axle assembly fluctuates with the terrain.

[0037] Preferably, as Figure 1As shown, one end of the second rocker arm 22 away from the first transmission shaft 23 is hinged to the bracket 4.

[0038] The beneficial effect of adopting the above preferred solution is: it is beneficial to transmit power to the second rocker arm through the first transmission shaft when the first rocker arm swings, so as to realize the swing of the second rocker arm.

[0039] Preferably, as Figure 2 shown, the upper end of the hydraulic cylinder 3 is hinged to the bracket 4 through the second pin shaft 8.

[0040] The beneficial effect of adopting the above preferred solution is: it is beneficial to provide support for the telescopic movement of the hydraulic cylinder, and further keep the ground clearance of the front axle assembly basically unchanged, avoid transmitting the undulation of the terrain to the bracket, and ensure the driving comfort.

[0041] Preferably, as Figure 2 shown, the lower end of the hydraulic cylinder 3 is hinged to the front axle assembly 1 through the first pin shaft 7.

[0042] The beneficial effect of adopting the above preferred solution is: it is beneficial to utilize the telescopic movement of the hydraulic cylinder to keep the ground clearance of the front axle assembly basically unchanged when the front axle assembly fluctuates with the terrain.

[0043] Preferably, as Figure 2 shown, the transmission support mechanism 5 includes: a universal joint drive shaft 51, a support shaft 52, a spherical bearing 53, a support seat 54 and a second drive shaft 55; the universal joint drive shaft 51 is arranged on the support shaft 52, the inner ring of the spherical bearing 53 is connected to the support seat 54 through shaft hole fit, the outer ring is connected to the support shaft 52 through shaft hole fit, and the second drive shaft 55 is connected to the universal joint drive shaft 51 through spline fit.

[0044] The beneficial effect of adopting the above preferred solution is: the transmission support mechanism is beneficial to transmit the power of the tractor to the front drive axle assembly, so as to drive the movement of the tractor wheels.

[0045] Preferably, as Figure 1 and Figure 2 shown, one ends of the universal joint drive shaft 51 and the support shaft 52 away from the second drive shaft 55 are both connected to the front axle assembly 1.

[0046] The beneficial effect of adopting the above preferred solution is: the support shaft is beneficial to provide support for the universal joint drive shaft, and the universal joint drive shaft is beneficial to transmit the power of the engine to the front axle assembly.

[0047] Preferably, a hydraulic valve group is arranged on the pipeline where the energy accumulator 6 is connected to the hydraulic cylinder 3, and the hydraulic valve group is connected to the control mechanism.

[0048] The beneficial effects of adopting the above preferred solution are as follows: The hydraulic valve block is connected to the control mechanism, which is beneficial for the control mechanism to judge the position change between the rocker arm and the bracket through the signals transmitted by the angle sensor, and then control the opening and closing of the hydraulic valve block to realize the telescoping of the suspension cylinder.

[0049] Preferably, both ends of the front axle assembly 1 are respectively connected to the wheels by bolts.

[0050] The beneficial effects of adopting the above preferred solution are as follows: The wheels displace on different terrains, which is beneficial for the rocker arm to swing with the undulation of the terrain.

[0051] The working process of the present invention is introduced below:

[0052] As Figure 1 and Figure 2 shown, during the driving process of the tractor, the undulation changes of the tire when passing through the pitted ground drive the up and down undulation of the front axle assembly 1 and drive the first rocker arm 21 and the second rocker arm 22 in the rocker arm mechanism 2 to make swinging movements. When the sensor detects the swinging of the rocker arm mechanism 2, the position change of the rocker arm mechanism 2 is converted into an electrical signal and transmitted to the control mechanism. The control mechanism controls the hydraulic valve block according to the position change of the rocker arm 2, pumps oil or returns oil to the hydraulic cylinder 3 at an appropriate speed, so as to control the compression or elongation of the hydraulic cylinder 3, so that the front axle assembly 1 and the bracket 4 are in an appropriate relative position, that is, the ground clearance of the front axle assembly 1 is basically kept unchanged, and at the same time, the rocker arm mechanism 2 returns to the initial position smoothly.

[0053] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0054] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0055] In the present utility model, unless otherwise clearly specified or limited, terms such as "installation", "connection", "attachment", "fixation", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral one; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0056] In the present utility model, unless otherwise clearly specified or limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature is at a higher level than the second feature in terms of horizontal height. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature is at a lower level than the second feature in terms of horizontal height.

[0057] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0058] Although the embodiments of the present utility model have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present utility model. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present utility model.

Claims

1. A side-mounted suspended front drive axle suitable for a tractor, characterized in that: include: A front axle assembly (1), a rocker mechanism (2), two hydraulic cylinders (3), a bracket (4), a transmission support mechanism (5), an energy accumulator (6), a sensor and a control mechanism; the bracket (4) is arranged above the front axle assembly (1), the two hydraulic cylinders (3) are respectively arranged on both sides of the bracket (4), the upper and lower ends of the hydraulic cylinders (3) are respectively hinged to the bracket (4) and the front axle assembly (1), the rocker mechanism (2) is arranged below the bracket (4), and the two ends are respectively hinged to the bracket (4) and the front axle assembly (1), the transmission support mechanism (5) is connected to one end of the front axle assembly (1) away from the rocker mechanism (2), the energy accumulator (6) is installed on the bracket (4) and connected to the hydraulic cylinder (3) through a pipeline, the sensor is installed on the bracket (4) and connected to the rocker mechanism (2), and the sensor is connected to the control mechanism.

2. According to claim 1, a side-mounted suspended front drive axle suitable for a tractor is characterized in that: The rocker arm mechanism (2) comprises: a first rocker arm (21), a second rocker arm (22) and a first transmission shaft (23); the first rocker arm (21) and the second rocker arm (22) are hingedly connected via the first transmission shaft (23).

3. The side-mounted suspended front drive axle suitable for a tractor according to claim 2, characterized in that: An articulated seat (11) is provided at one end of the front axle assembly (1) away from the transmission support mechanism (5), and an end of the first rocker arm (21) away from the first transmission shaft (23) is articulated to the articulated seat (11).

4. The side-mounted suspended front drive axle suitable for a tractor according to claim 2, characterized in that: One end of the second rocker arm (22) away from the first transmission shaft (23) is hinged to the bracket (4).

5. The side-mounted suspended front drive axle suitable for a tractor according to claim 1, characterized in that: The upper end of the hydraulic cylinder (3) is hinged to the bracket (4) via a second pin shaft (8).

6. The side-mounted suspended front drive axle suitable for a tractor according to claim 1, characterized in that: The lower end of the hydraulic cylinder (3) is hinged to the front axle assembly (1) via a first pin shaft (7).

7. The side-mounted suspended front drive axle suitable for a tractor according to claim 1, characterized in that: The transmission support mechanism (5) comprises: a universal joint transmission shaft (51), a support shaft (52), a spherical bearing (53), a support seat (54) and a second transmission shaft (55); the universal joint transmission shaft (51) is arranged on the support shaft (52), the inner ring of the spherical bearing (53) is connected to the support seat (54) through an axial hole fit, and the outer ring is connected to the support shaft (52) through an axial hole fit, and the second transmission shaft (55) is connected to the universal joint transmission shaft (51) through a spline fit.

8. The side-mounted suspended front drive axle suitable for a tractor according to claim 7, characterized in that: The ends of the universal joint transmission shaft (51) and the support shaft (52) away from the second transmission shaft (55) are both connected to the front axle assembly (1).

9. The side-mounted suspended front drive axle suitable for a tractor according to claim 1, characterized in that: A hydraulic valve group is provided on the pipeline connecting the energy accumulator (6) and the hydraulic cylinder (3), and the hydraulic valve group is connected to the control mechanism.

10. The side-mounted suspended front drive axle suitable for a tractor according to claim 1, characterized in that: Both ends of the front axle assembly (1) are connected to the wheels via bolts respectively.

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