Multifunctional rear-mounted agricultural tractor driving device
Technical Field
The invention relates to an agricultural tractor, in particular to a multifunctional rear-hanging type agricultural tractor driving device.
Background
The tractor is used for towing and driving the operation machine to complete various mobile operations. Can also be used as fixed operation power. The system or the device comprises an engine, a transmission system, a walking system, a steering system, a hydraulic suspension system, a power output system, an electric instrument system, a driving control system, a traction system and the like. The power of the engine is transmitted to the driving wheel by the transmission system, so that the tractor runs, and in real life, a rubber belt is commonly used as a medium for power transmission. Tractors classified into agricultural, industrial and special uses according to function and use; the tractor is divided into a wheel type tractor, a crawler type tractor, a boat-shaped tractor, a self-propelled chassis and the like according to the structure type.
The rear end of the traditional agricultural tractor has no power output shaft and cannot be externally connected with other agricultural instruments; also some agricultural tractors rear end has a pivot on the market, and power input end as outer hanging agricultural implement provides power for it, and traditional output shaft sets up towards the back, and the function is single, has certain limitation.
Disclosure of Invention
【1】 Technical problem to be solved
The invention aims to provide a multifunctional rear-mounted agricultural tractor driving device which is provided with a plurality of outputs in different directions and a clutch device.
【2】 Technical scheme for solving problems
The invention provides a multifunctional rear-hanging type agricultural tractor driving device, which comprises:
the tractor mounting structure comprises a shell 1 serving as a mounting carrier, wherein a connecting hole for connecting with a tractor is formed in the end of the shell 1, and a mounting hole is formed in the connecting part; mounting columns 13 with circular cross sections are symmetrically arranged at two ends of the shell 1, and the two mounting columns 13 are coaxially arranged;
the transmission assembly comprises a driving shaft 21, a driven shaft, a driving ring 5, a clutch device 6 and a rotating sleeve 7, wherein the driving shaft 21 is rotatably installed in the housing 1, a gear sleeve is fixed on the side wall of the driving shaft 21, gear teeth are arranged on the outer wall of the gear sleeve, a spline groove is formed in the tail part of the driving shaft 21, the head part of the driving shaft 21 extends out of the housing 1, a spline is formed in the end part of the driving shaft, the driven shaft is rotatably installed at the upper end of the driving shaft, the axis of the driven shaft is parallel to the axis of the mounting column, a worm wheel 22 meshed with the gear sleeve is fixed on the driven shaft, two ends of the driven shaft extend out of the housing 1, a driven gear 23 is fixed at the end part of the driven shaft, the driving ring is rotatably installed at the root part of the mounting column 13 through a bearing, and a gear ring, clutch 6 coaxial cover is established on the erection column 13 and with drive ring 5 rigid connection, change the cover and install rotatoryly on the erection column 13, just the tip of changeing the cover with clutch 6 connects, the end fixing of erection column 13 has the limiting plate that is used for the restriction change cover axial displacement.
Further, the end cover 3 can cover the driving ring and the driven gear 23.
Further, clutch 6 includes an annular body, the lateral wall circumference equipartition of annular body has the mounting groove of at least three outside setting, one side of mounting groove inwards extends to the inner wall of annular body, the mounting groove includes first cell body 601 and the second cell body 602 that communicates each other, be equipped with roller 61 in the first cell body 601, roller 61's axis is on a parallel with the axis of annular body, be equipped with briquetting 62 in the second cell body and make the briquetting compresses tightly the roller makes its laminating and the pressure spring 63 of first cell body lateral wall, the outer wall of changeing the cover with extend to the lateral wall contact of the outer roller of first cell body.
Further, the shaping has the installation cavity in the casing, the both ends of installation cavity run through and have the appearance the first hole body 11 that the drive shaft passed, the both sides of installation cavity run through and have the appearance the second hole body 12 that the driven shaft passed, second hole body 12 is located the upper end and the perpendicular to of first hole body 11 the axis of first hole body 11, the both sides of casing are equipped with and are used for the installation department 132 of drive ring, two the coaxial setting of installation department, the erection column is fixed the tip of installation department, and coaxial with the installation department.
Further, the end of the driving ring 5 extends axially outwards to form a connecting portion 51, the end of the connecting portion is axially and uniformly provided with a positioning hole 53 and a mounting hole 52 for connecting with the clutch device, the outer wall of the driving ring forms a sealing surface 510, the end cover is embedded with a sealing ring, and the inner wall of the sealing ring is attached to the sealing surface.
Furthermore, the root of the rotating sleeve extends outwards in the radial direction to form a first shielding part, the end part of the first shielding part is bent inwards to form a second shielding part capable of covering the clutch device, and a sealing ring is arranged between the second shielding part and the side wall of the shell.
Furthermore, the end part of the shell is detachably fixed with a mounting bracket through a bolt, and the mounting bracket is provided with a positioning pin and a mounting hole.
Further, the first tank body comprises a first side wall 6011, a second side wall 6012, a third side wall 6013 and a fourth side wall 6014 which are connected in sequence, the first side wall 6011 is an arc-shaped surface, the radius of the first side wall 6011 is the same as that of the roller, the fourth side wall 6014 is an inclined surface and forms an accommodating groove between the second side wall and the third side wall, the head of the first side wall extends to the inner wall of the ring body, and the tail of the fourth side wall is communicated with the second tank body.
Further, the second tank body comprises a fifth side wall 6021 and a sixth side wall which are sequentially connected, the fifth side wall is perpendicular to a connecting line between the first tank body and the second tank body, the sixth side wall is parallel to a connecting line between the first tank body and the second tank body, the sixth side wall is connected with the fourth side wall, an arc-shaped supporting surface 6015 is arranged on the side wall of the pressing block, and the radius of the supporting surface is the same as that of the roller; when the pressing block pushes the roller and enables the roller to be attached to the first side wall, the supporting surface is coaxial with the first side wall.
Furthermore, one of them the lateral wall of the first lateral wall of mounting groove has seted up a slide opening 600, the axis of slide opening perpendicular and intersect in the axis of first lateral wall and be on a parallel with the slip direction of briquetting, sliding fit has ejector pin 811 in the slide opening, the lateral wall of ejector pin is equipped with annular protrusion 811 and forms first spacing portion, the tip of slide opening is equipped with jump ring 83 and forms the spacing portion of second, the spacing portion of second is located first spacing portion with the roller quality testing, the bellied rear end of annular is equipped with and makes the ejector pin have towards the elastic component 82 that the roller is close to the motion trend, the afterbody of slide opening is equipped with contact switch, can promote during the roller laminating with first lateral wall the ejector pin triggers contact switch.
【3】 Advantageous effects
The multifunctional rear-mounted agricultural tractor driving device is convenient to install, has single input and multiple outputs, has different rotating speeds and torques at the output ends, can select and use different output ends according to different use working conditions, and has torsion protection devices at the output ends at two sides, so that idling can be generated when the torque is too large, and overload is avoided; the output end is arranged towards the back, the left and the right respectively, so that the multifunctional agricultural machine can adapt to different agricultural instruments, and has multiple functions, convenient and quick connection and convenient use.
Drawings
FIG. 1 is a schematic structural view of a multifunctional rear-hanging agricultural tractor driving device according to the present invention;
FIG. 2 is an exploded view of the multi-functional rear-hanging agricultural tractor drive of the present invention;
FIG. 3 is a schematic structural view of a housing of the multifunctional rear-hanging agricultural tractor driving device according to the present invention;
FIG. 4 is a schematic structural view of a clutch device of the multi-functional rear-hanging agricultural tractor driving device of the present invention;
FIG. 5 is an enlarged view of portion A of FIG. 4;
FIG. 6 is a schematic structural view of a detection switch of the clutch device of the multi-functional rear-hanging agricultural tractor driving device according to the present invention;
fig. 7 is a schematic structural view of a driving ring of the multi-functional rear-hanging agricultural tractor driving apparatus of the present invention.
Detailed Description
The following describes embodiments of the present invention in detail with reference to the accompanying drawings.
Referring to fig. 1 to 7, the present invention provides a multifunctional rear-mounted agricultural tractor driving device, which comprises a housing 1 and a transmission assembly;
referring to fig. 1 to 3, a housing 1 serves as a mounting carrier and is used for being connected with the rear end of a tractor, a mounting bracket (not shown in the figure) is detachably fixed at the end of the housing through a bolt, the mounting bracket is arranged towards one side of the tractor, the cross section of the mounting bracket is of a rectangular structure, the end of the mounting bracket extends radially outwards and forms a connecting part, a positioning pin and a mounting hole are formed in the connecting part, a pin hole for inserting the positioning pin and a screw hole corresponding to the mounting hole are formed in the tail part of the tractor, the positioning pin is inserted into the positioning hole in an aligning manner during mounting, and the bolt penetrates through the mounting hole and is in; in order to improve joint strength, avoid the bolt to bear whole pulling forces, a buckle is installed to detachable on the installing support, and it is in the bayonet socket of tractor rear end with its card to install to through the bolt fastening, this buckle can bear most pulling force, reduces the pulling force that the bolt bore, avoids bolt atress pine to take off and splits even, has improved its reliability and stability, long service life.
A mounting cavity is formed in the shell, the front end and the rear end of the mounting cavity are provided with first hole bodies 11 through which two ends penetrate, the first hole bodies 11 are used for allowing a driving shaft to penetrate, the left side and the right side of the mounting cavity are provided with second hole bodies 12 through which the second hole bodies 12 are used for allowing a driven shaft to penetrate, the second hole bodies 12 are arranged at the upper ends of the first hole bodies 11, the axis of the second hole bodies is perpendicular to the axis of the first hole bodies 11, mounting parts 132 are arranged at two sides of the shell and used for mounting the driving ring, the mounting parts are cylindrical, the two mounting parts are coaxially arranged, the axis of the mounting parts is parallel to the axis of the second hole bodies, mounting columns 13 are arranged at the end parts of the mounting parts, the mounting columns are cylindrical and are coaxially arranged with the mounting parts, the diameters of the mounting columns are smaller than those of the mounting parts, therefore, a step surface is formed between the mounting columns and the mounting parts, and the axial length of, in this embodiment, the length of the mounting column is 5-10 times of the length of the mounting portion, mounting holes 131 are uniformly distributed in the circumferential direction of the end portion of the mounting column, and internal threads are formed in the mounting holes.
Referring to fig. 1-2, the transmission assembly is used for power output and output, and includes a transmission shaft 21, a driven shaft, a driving ring 5, a clutch device 6 and a rotating sleeve 7, the driving shaft 21 is rotatably installed in an installation cavity of the housing 1 through a bearing, specifically, two ends of the driving shaft pass through the first hole body and extend out of the housing, one end of the driving shaft is used as an output end, and the other end is used as an output end, wherein one side of the input end is provided with a spline groove, one end of the output end is provided with a spline, a gear sleeve 9 is fixed on the side wall of the driving shaft 21, and the outer wall of the gear sleeve is provided with gear teeth; the driven shaft is rotatably arranged above the driving shaft, two ends of the driven shaft penetrate through the second hole body on the side wall of the mounting cavity, the axis of the driven shaft is vertical to the axis of the driving shaft, a worm wheel 22 meshed with the gear sleeve is fixed on the driven shaft, the driven shaft can be driven to rotate by the rotation of the driving shaft, the two ends of the driven shaft extend out of the shell 1, a driven gear 23 is fixed at the end of the driven shaft, in the embodiment, the driven gear is fixed at the end of the driven shaft through a spline, the driving ring is rotatably installed on the installation part at the root of the installation column 13 through a bearing, the outer edge of the driving ring is provided with a gear ring meshed with the driven gear 23, the clutch device 6 is coaxially sleeved on the installation column 13 and is rigidly connected with the driving ring 5, the rotating sleeve is rotatably installed on the installation column 13, the end part of the rotating sleeve is connected with the clutch device 6, and a limiting plate for limiting the axial movement of the rotating sleeve is fixed at the end part of the mounting column 13; in order to avoid the entry of impurities, end covers 3 capable of covering the driving ring and the driven gear 23 are further arranged in the embodiment, and the end covers are fixed on two sides of the shell through bolts; the end part of the driving ring 5 axially extends outwards to form a connecting part 51, the end part of the connecting part is axially and uniformly provided with a positioning hole 53 and a mounting hole 52 which are used for being connected with the clutch device, the outer wall of the connecting part forms a sealing surface 510, a sealing ring is embedded on the end cover, and the inner wall of the sealing ring is attached to the sealing surface, in the embodiment, the sealing ring is an oil seal.
Referring to fig. 4-6, the clutch device 6 includes an annular body, at least three mounting grooves are uniformly distributed on a side wall of the annular body in a circumferential direction, in this embodiment, 8 mounting grooves are uniformly distributed in the circumferential direction, one side of each mounting groove extends radially inward to an inner wall of the annular body, that is, one side of each mounting groove facing the annular body is open, each mounting groove includes a first groove 601 and a second groove 602 which are communicated with each other, a roller 61 is disposed in the first groove 601, an axis of the roller 61 is parallel to an axis of the annular body, a pressing block 62 and a pressing spring 63 are disposed in the second groove, the pressing block presses the roller and makes the roller adhere to the side wall of the first groove, specifically, the first groove includes a first side wall 6011, a second side wall 6012, a third side wall 6013 and a fourth side wall 6014 which are sequentially connected, the first side wall 6011 is an arc-shaped surface, a radius of the first side wall 6013 is the same as, An accommodating groove is formed between the third side walls, the head of the first side wall extends to the inner wall of the annular body, and the tail of the fourth side wall is communicated with the second groove body; the second groove body comprises a fifth side wall 6021 and a sixth side wall which are sequentially connected, wherein the fifth side wall is perpendicular to a connecting line between the first groove body and the second groove body, the sixth side wall is parallel to the connecting line between the first groove body and the second groove body, the sixth side wall is connected with the fourth side wall, an arc-shaped supporting surface 6015 is arranged on the side wall of the pressing block, and the radius of the arc-shaped supporting surface is the same as that of the roller; when the pressing block pushes the roller and the side wall of the roller is attached to the first side wall, the bearing surface is coaxial with the first side wall, in order to visually know the state of the roller, in the embodiment, the side wall of the first side wall of at least one of the mounting grooves is provided with a sliding hole 600, and the axis of the sliding hole is perpendicular to and intersects with the axis of the first side wall. Meanwhile, the axis of the ejector rod is parallel to the sliding direction of the pressing block, an ejector rod 811 is arranged in the sliding hole in a sliding mode, an annular protrusion 811 is arranged on the side wall of the ejector rod and forms a first limiting portion, a clamp spring 83 is arranged at the end portion of the sliding hole and forms a second limiting portion, the second limiting portion is located between the first limiting portion and the roller, an elastic component 82 is arranged at the rear end of the annular protrusion and pushes the ejector rod to enable the ejector rod to approach the roller, when the end portion of the ejector rod is not in contact with the roller, the first limiting portion is in contact with the second limiting portion under the action of elastic force to achieve axial limiting, at the moment, the head portion of the ejector rod extends into the first groove, a contact switch is arranged at the tail portion of the sliding hole, and when the roller is attached to the first side wall, the ejector rod can be.
The outer wall of the end part of the rotating sleeve is in contact with the side wall of the roller extending out of the first groove body, when the torque and the torque received by the rotating sleeve exceed a certain value, the thrust generated on the roller exceeds the thrust of the elastic component, so that one side of the roller is separated from the first side wall, the friction force is reduced, the roller idles, and the influence of overload and even the damage to a driving device are avoided; in order to improve the sealing property and avoid sundries from entering during operation, the root part of the rotating sleeve radially extends outwards to form a first shielding part, the end part of the first shielding part is bent inwards to form a second shielding part capable of covering the clutch device, and a sealing ring is arranged between the second shielding part and the side wall of the shell.
The multifunctional rear-mounted agricultural tractor driving device is convenient to install, has single input and multiple outputs, has different rotating speeds and torques at the output ends, can select and use different output ends according to different use working conditions, and has torsion protection devices at the output ends at two sides, so that idling can be generated when the torque is too large, and overload is avoided; the output end is arranged towards the back, the left and the right respectively, so that the multifunctional agricultural machine can adapt to different agricultural instruments, and has multiple functions, convenient and quick connection and convenient use.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.