KR101656932B1 - Connecting devices for power transmission to tie a working machine - Google Patents

Abstract

The present invention relates to a work machine connecting apparatus capable of transmitting power, and more particularly, to a work machine connecting apparatus capable of transmitting power of a tractor to a work machine, The worker can be connected to the tractor while the worker is seated on the tractor while the worker is seated on the tractor, thereby improving the compatibility of the worker and enhancing the efficiency of the work. .

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a connecting device for power transmission,

The present invention relates to a work machine connecting apparatus capable of transmitting power, and more particularly, to a work machine connecting apparatus capable of transmitting power of a tractor to a work machine, The worker can be connected to the tractor while the worker is seated on the tractor while the worker is seated on the tractor, thereby improving the compatibility of the worker and enhancing the efficiency of the work. .

Generally, a tractor having a convenient structure and characteristics is used as a means for performing various kinds of agricultural work, and a tractor is used for a car body, an engine, a power transmission device, a traveling device, a power take-off device, a working device connection device, Lt; / RTI >

Plow, harrow, and rotor baler are attached to the rear of the tractor for tilling, crushing, pest control, pumping, and threshing.

The working machine includes an upper link coupled to a rear portion of the tractor with a separate working machine connection portion at the front, left and right lift rods pivotally coupled to one sides of the lower link at both sides of the upper link, And the drive shaft of the working machine can be coupled to a power take off (PTO) to be driven.

However, since the shape, the structure, and the spacing of the tractor connecting portion composed of the upper link, the left and right lift rod and the lower link and the working machine connecting portion coupled to the working machine provided for coupling the working machine to the tractor differ depending on the manufacturer, There was a problem that it could not be combined. That is, when the worker has the tractor of the company A, there is a lot of inconvenience because only the worker designated by the company A is used but only the other worker of the company B can use it.

In addition, even if the tractor and the working machine are provided with the same A yarn, the shape, the structure and the interval of the connecting part of the working machine are different according to the type of the working machine, that is, the tiller, sowing, When a successive work such as chiken weeding is performed, a plow working machine, a rotary tilling work machine, a plow working machine, a seeding work machine and a chongqing gymnastic work machine can not be quickly combined in one tractor, and work time is delayed.

Further, when the connection portion of the working machine is worn, deformed or damaged in a long-term use process, it is difficult to perform partial inspection, repair and exchange, and there is another problem that it takes much time.

To solve this problem

Korean Patent No. 10-1137431, Korean Patent No. 10-0969252, and Korean Patent No. 10-1137431 disclose a joint that connects a joint shaft fixing portion connected to a tractor PTO shaft and an extension joint shaft connecting a work machine drive shaft So that the operator can operate the hydraulic cylinder while sitting on the tractor, connecting the working machine to the tractor and transmitting the power.

However, in the case of the above prior art documents, only when the extension joint shaft connecting the male spline of the joint shaft fixing portion connected to the tractor PTO shaft and the work machine drive shaft is coaxial, that is, in a straight line, It is troublesome for the operator to manually adjust the vertical support frame 320 and the horizontal joining piece 350 by adjusting the bolts according to the type of the work machine.

Not only this hassle but also the structural distance between the fixed through hole 321 of the vertical support frame 320 and the variable through hole 351 of the horizontal coupling piece 350 reflects the height of various types of working machine drive shafts There is a problem in that the durability of the PTO shaft and the work machine driving shaft can not be exactly coincided with each other,

Further, since the shaft-to-shaft connection is made through the spline, when the extended joint shaft connecting the work machine driving shaft is detachably attached through the male spline, the spline may be easily worn out.

In the connecting device disclosed in Japanese Patent Application Laid-Open No. 2005-87170, a connecting device is connected to a rear end of a pair of right and left lower links provided at a lower end of a top link, and a rotary working machine is attached to the connecting / And the PTO shaft of the tractor body and the input shaft of the rotary working machine are spline coupled through a yoke joint so that the operator can operate the hydraulic cylinder while sitting on the tractor to connect the working machine to the tractor and transmit the power .

However, in the case of the above prior art documents, it is also possible to connect the working machine only when the connecting port connecting the tractor PTO shaft and the driving machine driving shaft are coaxial, that is, in a straight line. It is impossible to transmit the power through the spline and the spline is worn easily when the driving shaft of the working machine is detachably attached.

Korean Patent No. 10-1137431 Korean Patent No. 10-0969252 Korean Patent No. 10-1137431 Japanese Patent Application Laid-Open No. 2005-87170

The present invention has been conceived to solve the above problems, and it is an object of the present invention to provide an apparatus for connecting a work machine capable of transmitting power, which can transmit the power of a tractor to a work machine, The operator is able to attach and detach the working machine to the tractor while being seated on the tractor even if the worker is seated on the tractor while the operator is seated on the tractor, Coaxial setting, etc., to provide a structure that eliminates the need for any work steps, so that other sequential operations such as tillage, shedding and furrow making, sowing, shallow ground surface weeding, And that partial inspection and exchange can be made easily. And that a task.

According to an aspect of the present invention, there is provided an apparatus for connecting a working machine to a tractor, the apparatus comprising: a tractor coupling unit connected to a rear of the tractor; And a joint shaft fixing part for transmitting the power of the PTO of the tractor to the driving shaft of the working machine, wherein the joint shaft fixing part is composed of a tractor joint shaft fixing part and a working machine joint shaft fixing part, The tractor joint shaft fixing unit includes a PTO universal joint connected to the PTO of the tractor T, a PTO coupling shaft connected to the PTO universal joint, a PTO coupling shaft guide coupled to the tractor coupling, A coupling shaft bearing set formed on the bearing set, the PTO coupling shaft guide portion Wherein the working machine joint shaft fixing portion includes a working machine guide shaft, a working machine coupling shaft connected to the working machine guide shaft, and a coupling shaft connected to the coupling shaft, A working machine coupling shaft bearing set installed inside the working machine coupling shaft to support the PTO coupling shaft, and a tractor coupling shaft cone gear coupling formed at the end of the coupling shaft and corresponding to the PTO coupling shaft conical gear coupling. do.

In addition, the conical gear coupling includes a plate-like disk portion and a cone-shaped conical portion formed at the center thereof, and a gear portion protruding along the circumference of the planar disk portion is protruded and engaged with each other.

The bearing set includes a joint-side housing having an oil inlet formed therein, a coupling-side housing coupled to the joint shaft housing, and an oil chamber formed between the housing and supplying oil to the bearing.

The plurality of elastic support springs may include a combination of a tension spring and a compression spring.

The tractor fastening frame includes a tractor fastening frame, a hook hook protruding from the upper center of the tractor fastening frame, a tractor fastening frame transverse beam formed below the tractor fastening frame, A lower link connection portion and a binding piece hinged to a lower link T-2 provided on the lower link T-1 and the upper link linking portion are hinge-connected to the upper link link T- And a binding shaft is formed so as to correspond to a position where the binding piece is formed on the working machine binding frame transverse beam, wherein the binding shaft is formed to protrude from the transverse beam of the working machine binding frame, .

In addition, an upper bracket is formed on the upper portion of the work machine binding frame, and a plurality of holes are formed in the upper bracket to form a height adjusting gap for assembling the bolts into the holes.

In addition, a width adjusting gap may be slidably coupled to the horizontal beam, and the width adjusting gap may be connected to a lower link of the working machine by a binding pin (P-3).

The binding shaft unlocking portion may include a handle, a connecting piece having one end hinged to the handle, a hinge coupled to the other end of the connecting piece, and hinged to the binding shaft unlocking portion connecting portion A connecting rod, an operating piece connected to the connecting rod, an elastic spring having one end hinged to the operating piece, and a restraining piece hinged to the other end of the elastic spring.

According to the present invention, there is provided a device for connecting a work machine capable of transmitting power, including a plow, a turning glaze, an ejector, a seeder, a chrysler, a fertilizer spreader, a boom sprayer, a trailer, The worker can attach and detach the working machine to the tractor while being seated on the tractor. Therefore, the working machine having all the different shapes, structures and intervals can be used for one tractor by improving the compatibility of the working machine. Specifically, it has the following effects.

Even if the PTO axis of the tractor and the driving axis of the working machine are not located on the same axis line, even if the position of the driving axis of the working machine differs according to the type of the machine, And the operation efficiency of the operator is improved because the coaxial operation is naturally adjusted only by the operation of connecting the connecting device.

Second, by improving the existing spline coupling structure that transfers power from the PTO to the working machine to the gear structure, it is possible to improve the durability according to the power transmission even if the tractor and the working machine are frequently attached and detached, .

Thirdly, even if the lengths of the widths of the working machines are different from each other, that is, even if the intervals of the working machines are different, the compatibility of the connecting apparatus according to the present invention can be improved by designing the widths of the working machines to correspond to the widths of the working machines.

Fourth, there is an effect of maximizing the work efficiency by making it possible to adjust the connection between the work machine connecting portion and the tractor connecting portion by the tractor working seat, that is, by eliminating the troubles that the worker has come down from the tractor for fastening the connecting device.

FIG. 1 is a perspective view of a connecting device of a working machine capable of transmitting power according to the present invention.
Fig. 2 is a perspective view of a connecting device of a working machine capable of transmitting power according to the present invention. Fig.
FIG. 3 is a side view of a connecting device of a working machine capable of transmitting power according to the present invention
Fig. 4 is a perspective view of a tractor coupling apparatus for a power transmission apparatus according to the present invention,
Fig. 5 is a perspective view of a working machine coupling device for a power transmission apparatus according to the present invention;
FIG. 6 is a side view of a joining apparatus for a work machine connecting device capable of transmitting power according to the present invention.
FIG. 7 is a side view of a joint shaft fixing part of a connecting device of a working machine capable of transmitting power according to the present invention
FIG. 8 is a cross-sectional view of a work machine connecting device capable of transmitting power according to the present invention.
9 is a perspective view of a PTO coupling shaft connected to a work machine connecting device capable of transmitting power according to the present invention.
Fig. 10 is a side view of a connecting portion of a connecting device of a working machine capable of transmitting power according to the present invention
FIG. 11 is a front view of the unlocking portion of the binding shaft of the connecting device of the working machine capable of transmitting power according to the present invention.

The term used in the present invention is a general term that is widely used at present. However, in some cases, there is a term selected arbitrarily by the applicant. In this case, the term used in the present invention It is necessary to understand the meaning.

Hereinafter, the technical structure of the present invention will be described in detail with reference to preferred embodiments shown in the accompanying drawings.

A tractor T binding apparatus A according to the present invention is a tractor T fastening apparatus for easily tying a work machine W to a tractor T so that various operations can be performed quickly according to the function of the work machine W, The work machine coupling means 200 coupled in advance to the front of the working machine W is coupled to the tractor coupling means 100 previously coupled to the rear of the work machine W by means of the joint shaft fixing means 300 in a one-touch manner.

That is, even if the position of the drive shaft differs according to the type of the working machine, in order to automatically align the center axis of the tractor with the center of the PTO shaft of the tractor and the driving shaft of the working machine, Is achieved by synchronizing the formed tractor joint shaft fixing portion (310) with the high and low speed of the work machine joint shaft fixing portion (320). That is, even if the position is different for each type, it means that the tractor joint shaft fixing part 310, to which the PTO shaft is connected, is automatically coaxed and coaxed with the position of the driving shaft of the working machine, with reference to the position of the driving shaft of the working machine.

This is because, as described above, in contrast to the prior art in which the worker manually shifts the tractor joint axis to which the PTO shaft is connected by shifting the height of the different drive shafts coaxially with the PTO axis, Can be said to be completely different from the technical idea.

Thus, the present invention does not require the operator to get off the tractor for connecting the working machine during the subsequent operations such as tillage, shedding of the tiller and the tiller, sowing of the worker, sowing, There is a difference in that it is necessary to get off the tractor in order to manually move the tractor joint axis to which the PTO shaft is connected in accordance with various elevations of the drive shaft.

To this end, according to the present invention,

Referring to FIGS. 1 to 4, the tractor binding unit 100 includes an engaging shaft 220 of a work machine binding member 200 to be mounted at an upper center of an inverted ∩ type tractor binding frame 110 And a hydraulic cylinder S connected to the top link T-1 of the tractor is coupled to the hydraulic cylinder at the bottom of the binding frame 110 where the hooking hook 120 is formed. And a hydraulic cylinder connecting portion 140 hinged by the pin P-1 is formed.

A tractor binding frame transverse beam 150 is formed at a lower portion of the tractor binding frame 110 so as to intersect and close an ∩-shaped open bottom. The tractor binding frame transverse beam 150 has a tractor T A lower link connecting portion 160 hinged by a tractor lower link T-2 binding pin P-2 is formed on a lower link T-2 provided on a side of the transverse beam 150, And binding pieces 130 to which the binding shafts 230 of the working machine binders 200 are fastened.

A coupling shaft unlocking portion connecting portion 170 is formed on the upper portion of the tractor coupling frame 110 to provide a coupling shaft unlocking portion 500 to be coupled to the tractor coupling frame 110, The joint shaft fixing portion 300 is fixed to the inner space of the body 110 by bolts so that the driving force of the PTO can be transmitted to the working machine W.

1 to 3 and 5 to 6, the working machine binding apparatus 200 includes all types and structures such as a plow, a rotary tiller, an excavator, a planter, a chrysler mower, a fertilizer spreader, a boom sprayer, a trailer, And all the various working machines W having different intervals and capable of individual operations can be quickly coupled to one tractor T. [

The upper bracket 240 is protruded upward from the center of the upper portion of the ∩ type work machine binding frame 210 which is opened downward to correspond to the outer shape of the tractor binding tool 100, A latching shaft 220 is formed at one side of the bracket 240 so as to be engaged with the latching hook 120 and connected to the other side of the upper bracket 240 by the upper link coupling pin P- A height adjusting gap 270 is formed.

Here, the height adjustment spacers 270 are provided for adjusting the height of the height adjusting spacers 270 according to sizes of the apparatuses and widths and heights of the apparatuses according to sizes thereof. As described above, Since the center of the joint 100 and the center of the joint shaft fixing part 300 formed in the working machine binding joint 200 are fixed coaxially with each other, Lt; / RTI >

To this end, a plurality of holes are formed in the upper bracket, and the height adjusting spacers 270 are moved in position to absorb the height while the bolts are assembled.

A work machine binding frame transverse beam 250 is formed at a lower portion of the working machine binding frame 210 to intersect and close an ∩-shaped opening having a lower portion. The transverse beam 250 of the working machine binding frame 250 includes the binding piece 130 And a coupling shaft 230 is protruded from the coupling shaft 230 so that the coupling shaft 230 is inserted into the coupling piece 130. A width adjusting gap 260 is formed in the horizontal beam 250 And the width adjusting gap 260 is pin-connected to the lower link of the working machine with a binding pin P-3.

Since the width of the width adjusting gap 260 differs depending on the type of the working machine and the width and the height of the width adjusting gap 260 vary according to the size of the working machine, Width adjustment.

In addition, a working machine joint fixing part mounting bracket 280 is fixedly installed in the inner space of the working machine binding frame 210 so that the driving force of the PTO can be transmitted to the working machine W .

1 to 3 and 7 to 10, the joint shaft fixing part 300 has a function of coupling the PTO of the tractor T and the drive shaft of the working machine W, A shaft fixing part 310 and a work machine joint shaft fixing part 320.

The tractor joint shaft fixing unit 310 includes a PTO universal joint 311 connected to the PTO of the tractor T and a tractor joint fixing bracket 311 connected to the PTO universal joint 311, A PTO coupling shaft 313 penetrating through a PTO coupling shaft guide part 312 which is bolted to the PTO coupling shaft guide part 312 and a PTO coupling shaft bearing part 312 installed inside the PTO coupling shaft guide part 312 to support the coupling shaft 313, (315), a plurality of elastic support springs (316) formed along the circumference of the bearing set, more precisely along the bearing set outer ring and connected to the PTO coupling shaft guide part (312) And a PTO coupling spherical cone gear coupling 317 formed on the yoke.

Here, the PTO coupling shaft guide portion 312 has a hollow inside for smoothly installing the elastic support spring 316 and penetrating the PTO coupling shaft 313, and the inner wall A plurality of resilient support springs 316 are connected to the bearing set 315 along a plurality of bearings 312-2.

Preferably, the elastic support springs 316 are installed at about four positions on the upper, lower, left, and right sides of the PTO coupling shaft 315. This is because the PTO coupling shaft bearing set 315 and the PTO coupling shaft 316, And the flow direction of the elastic support spring 316 formed between the guide portions 312 and flowing therebetween is taken into consideration.

In addition, considering that the elastic support spring 316 supports the load of the bearing set together with the flow direction, the lower elastic support spring 316 supporting the bearing set is formed as a compression spring, The upper elastic support spring 316 is preferably formed of a tension spring. That is, the plurality of elastic supporting springs 316 means that a tension spring and a compression spring are used in combination.

Further, it is more desirable to increase the design life span by maximizing the compression and tensile force by considering the load applied to the upper and lower right and left elastic support springs 316.

Since the operation of the tractor and the working machine is self-evident in the off-road operation, foreign matter such as mud may naturally contaminate the elastic support spring 316. In order to prevent contamination of the elastic support spring 316, It is preferable to form the cover 319 for blocking the light.

Since the position of the bearing set 315 must be changed so as to correspond to the position of the cone gear coupling 327 of the work machine coupling to be performed in the guide portion 312, It is preferable to adopt a flexible or stretchable material.

A guide groove 312-1 is formed in the guide portion 312 so that the cover 391 can be attached to the guide portion 312. The guide groove 312-1 is formed in the guide groove 312-1, A guide protrusion 319-3 is formed on the PTO coupling shaft 319 and an incision 319-2 is formed such that the PTO coupling shaft 313 is inserted. -1) is preferably formed at the center.

2, the conical gear coupling 317 is engaged with a cone gear coupling 327 of a work machine coupling to be described below to transmit the output of the PTO of the tractor T to the drive shaft of the working machine W A flat disc portion 317-1, and a cone-shaped conical portion 317-3 formed at the center thereof.

The planar disc portion 317-1 includes a gear portion 327-1 protruding from a planar disc portion 327-1 of a work machine binding port to which a gear portion 317-2 formed to protrude along the circumference is protruded, -2) and the output of the PTO is transmitted to the working machine.

That is, the cone-like conical portion 317-3 is formed so as to correspond to the conical conical portion 327-3 of the work machine coupling means to be described later, and the conical portions 317-3 and 327-3 are cone- The tractor binding opening 100 and the working machine binding opening 200 are connected to each other so as to move the shaft center along the cone of the circular additional tractor binding cylindrical gear coupling 317 of the working machine binding spherical cylindrical gear coupling 327 The tractor coupling conical gear coupling 317 is moved to the position corresponding to the position of the drive shaft of the working machine, that is, the working machine coupling concave gear coupling 327 while overcoming the elastic force of the elastic support spring 316 So that the power of the PTO is transferred to the working machine by making the working machine driving shaft and the tractor PTO shaft coaxial.

Here, in the embodiment of the present invention, the conical gear coupling 317 of the tractor coupling and the coupling of the cone coupling 327 of the working machine coupling are made of male type, but the shape of the male and female coupling may be changed, The choice of the proper design can be made by an ordinary technician considering the design merit.

The work machine joint shaft fixing part 320 includes a working machine guide shaft 321 connected to the driving shaft of the working machine and a working machine joint fixing part mounting bracket 280 connected to the working machine guide shaft 321, A working machine coupling shaft bearing set 325 installed inside the work machine joint fixing station bracket 280 to support the coupling shaft and a working machine coupling shaft bearing set 325 formed at the end of the coupling shaft 323, And a tractor coupling portion conical gear coupling 317 having a structure corresponding to the coupling spherical gear coupling 317.

Here, the coupling shafts 313 and 323 and the coupling spherical cone gear couplings 317 and 327 are axially splined to each other by a square spline, an involute spline, or a serration.

In addition, since the bearing sets 315 and 325 are required to transmit the high-speed rotation of the PTO shaft, which usually reaches 4,500 RPM, to the work axis, it is preferable to adopt a cylindrical roller bearing. But are not necessarily limited to.

As is known, a cylindrical roller bearing generally includes an inner ring having an orbit surface on the outer periphery, an outer ring having an inner periphery on the inner periphery, and a plurality of cylinders arranged to be able to roll between the raceway surface of the inner ring and the raceway surface of the outer ring. And a retainer for holding the cylindrical roller at a predetermined interval in the circumference. Since the rolling surface of the cylindrical roller and the raceway surface of the raceway are in line contact with each other, the cylindrical roller bearing is suitable for high-speed rotation because of its high load capacity for radial load. On the other hand, It is holding.

Therefore, in order to suppress the heat generation, oil cooling is adopted. In this embodiment, an oil chamber is formed in the bearing housing so that oil is always supplied to the roller of the cylindrical roller bearing.

As a result, it is not necessary to supply the oil, which is necessarily required for the friction of the rollers with the fluid, from time to time as well as the cooling through the oil, thereby ensuring ease of maintenance.

10, the bearing sets 315 and 325 will be described by taking a PTO coupling shaft bearing set 315 as an example. The bearing sets 315 and 325 include a joint side housing 315-1 formed with an oil inlet, A coupling side housing 315-2 coupled to the housing and an oil chamber 315-4 formed between the housings 315-1 and 315-2 to supply oil to the bearing 315-3 .

Here, in the case of the PTO coupling shaft bearing set 315, the elastic support spring 316 is connected to the joint-side housing 315-1 so as to be coupled to the inner wall 312-2 of the PTO coupling shaft guide portion 312 .

1 to 3 and 11, the coupling shaft 230 is engaged with the coupling piece 130 and is coupled to the tractor coupling part 100 and the working machine coupling part 200 The binding apparatus according to claim 1 or 2, wherein the binding members (100, 200) are not separated from each other and can complete a predetermined operation when the binding members (100, 200) And the like.

For this purpose, the binding shaft unlocking part 500 is composed of four joints. Specifically, the binding shaft unlocking part 500 includes a handle 510 operable in a tractor seat, a connecting piece 520 hinged to one end of the handle, A connecting rod 530 coupled to the other end and hinged to the coupling shaft unlocking portion connecting portion 170, a pair of actuating pieces 540 connected to the connecting rod, a pair of elastic springs having one end hinged to the actuating piece, 550), and a pair of restraint pieces (560) hingedly connected to the other ends of the elastic springs.

Therefore, when the operator manipulates the handle 510 while being seated in the seat of the tractor, the connecting piece 520 rotates the connecting rod 530, and the operating piece 540 connected to the connecting rod 540 rotates, The constraining piece 560 is lowered while closing one side of the binding piece 130 by the tensile force of the elastic spring. As a result, the binding shaft 230 inserted into the coupling piece 130 is blocked by the constraining piece 560 and can not be released from the binding piece, so that the tractor binding device 100 and the working device binding device 200 are held together It will be done.

The end of the restraint piece may be tapered so as to push the binding shaft 230 toward the binding piece 130 so that the binding shaft 230 is fully inserted into the binding piece 130 while entering the binding piece 130.

In addition, when the spring 531 is tightened by the nut 532 at both ends of the connecting rod 530 and the constraining piece is in the unlocking state, that is, when the tractor and the working machine are separated from each other, The unlocking shaft unlocking part 500 tightens the unshifting shaft unlocking part 500 so as not to fall freely due to its own weight unless an external force is applied thereto.

The process of binding the work machine W to the tractor T using the tractor work machine binding apparatus A having the above-described structure is as follows.

The tractor binding unit 100 and the working machine binding unit 200 are always coupled to the tractor T and the working machine W, respectively. In this state, the operator is seated on the tractor and moves the tractor to the work machine to be operated. When the hydraulic cylinder is driven in the forward direction, the tractor binding port 100 provided at the rear of the tractor T moves the lower link connecting portion 160 The engaging hook 120 is rotated with the tractor coupling 100 so that the engaging hook 120 is engaged with the engaging shaft 220.

When the hydraulic cylinder is driven in the reverse direction again when the engaging shaft 220 is hooked to the tip of the engaging hook 120, the working machine coupling hole 200 is pulled toward the tractor coupling hole 100 rotating in the clockwise direction, (200) and the tractor binding joint (100) are integrally joined.

Here, when the tractor binding member 100 and the working machine binding member 200 are coupled to each other along the cone of the circular additional tractor binding cylindrical guide gear coupling 317 of the working machine binding spherical guiding gear coupling 327 toward the axial center While the tractor coupling pinion gear coupling 317 connected to the bearing set 315 which is extended and supported by the elastic support spring 316 corresponds to the position of the coupling pin 327 of the working machine coupling pinion gear, So that the conical gear coupling 327 is coaxial with the plate-like disk portions 317-1 and 327-2 engaged with each other to complete preparation for power transmission.

Since the cover 319 is made of a soft or stretchable material, even if the position of the conical gear coupling 317 is variable, the variable amount of the conical gear coupling 317 can be sufficiently absorbed, The PTO universal joint 311 absorbs the positional deviation with respect to the PTO shaft according to the variable amount.

In this state, the binding shafts 230 are naturally inserted into the binding pieces 130 and are put in a state of being seated.

Then, when the operator pushes the handle 510 while being seated on the tractor, the restraint piece 560 descends while closing one side of the binding piece 130, and the binding shaft 230 inserted into the binding piece 130 Is blocked by the restraint piece 560 and can not be released from the binding piece, so that the tractor binding unit 100 and the working machine binding unit 200 are kept in a fully bound state. Therefore, since the plate-like disk portions 317-1 and 327-2 are maintained in a state where they are engaged with each other, the elastic support spring 316 does not flow any more when the binding ports 100 and 200 are engaged The position is maintained.

Thereafter, after the necessary work is completed, the separation of the tractor T and the work machine W is separated through the reverse operation simultaneously with pulling the handle 510.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the present invention. Various modifications and variations will be possible without departing from the spirit of the invention. Therefore, the scope of the present invention should be construed as being covered by the scope of the appended claims, and technical scope within the scope of equivalents thereof should be construed as being included in the scope of the present invention.

100: tractor coupling
110: tractor binding frame 120: hooking hook
130: joint part 140: hydraulic cylinder connection part
150: tractor binding frame, horizontal beam 160: lower link connection
170: coupling shaft unlocking part connecting part 180: tractor joint fixing part mounting bracket
200: Machine coupling
210: working machine binding frame 220:
230: coupling shaft 240: upper bracket
250: Working machine binding frame Horizontal beam 260: Spacing adjustment gap
270: Height adjusting spacer 280: Work machine joint fixing station bracket
300: joint shaft fixing portion
310: Tractor joint shaft fixing section
311: PTO universal joint 312: PTO coupling shaft guide part
313: PTO coupling shaft 315: PTO coupling shaft bearing set
316: resilient support spring 317: PTO coupling sleeve conical gear coupling
319: cover
320: Work machine joint shaft fixing portion
321: Machine guide shaft 323: Machine coupling shaft
325: Working machine coupling axis bearing set 327: Working machine coupling assembly Conical gear coupling
500: Union shaft unlocking part
510: handle 520: connecting piece
530: connecting rod 540:
550: elastic spring 560:

Claims (8)

1. A work machine coupling device for coupling a tractor and a work machine,
The work machine coupling device capable of transmitting the power includes a tractor coupling unit 100 connected to the rear of the tractor, a working machine coupling unit 200 provided in front of the working machine, and a joint shaft fixing unit 200 for transmitting the power of the PTO of the tractor to the driving shaft of the working machine 300)
The joint shaft fixing part 300 includes a tractor joint shaft fixing part 310 and a working machine joint shaft fixing part 320,
The tractor joint shaft fixing part 310 includes a PTO universal joint 311 connected to the PTO of the tractor T, a PTO coupling shaft 313 connected to the PTO universal joint 311, A PTO coupling shaft bearing set 315 mounted on the coupled PTO coupling shaft guide portion 312 and supporting the coupling shaft 313 and a PTO coupling shaft bearing 315 formed on the PTO coupling shaft guide portion 312, A plurality of elastic supporting springs 316 connected to the coupling shaft 313 and a PTO coupling pin conical gear coupling 317 formed at the end of the coupling shaft 313,
The work machine joint shaft fixing part 320 is installed in the work machine coupling shaft 200 to support the coupling shaft 321, a working machine coupling shaft 323 connected to the working machine guide shaft 321, A working machine coupling shaft bearing set 325 and a tractor coupling wing conical gear coupling 327 formed at the end of the coupling shaft 323 and corresponding to the PTO coupling wedge cone gear coupling 317 Wherein the power transmission mechanism comprises:
The method according to claim 1,
The conical gear couplings 317 and 327 include planar disk portions 317-1 and 327-1 and conical concentric portions 317-3 and 327-3 formed at the center thereof,
And gear portions 317-2 and 327-2 protruding along the circumference of the plate-like disk portions 317-1 and 327-1 are protrudingly formed and engaged with each other. Device.
The method according to claim 1,
The bearing sets 315 and 325 include joint side housings 315-1 and 325-1 formed with oil injection holes, coupling side housings 315-2 and 325-2 coupled with the joint side housings, And oil chambers 315-4 and 325-4 which are formed between the bearing sets 315-3 and 325-3 for supplying oil to the bearing sets 315-3 and 325-3 Features a connecting device for power transmission.
The method according to claim 1,
Wherein the plurality of elastic support springs (316) are composed of a combination of a tension spring and a compression spring.
The method according to claim 1,
The tractor binding unit 100 includes a tractor binding frame 110 and a hooking hook 120 protruding from an upper center of the tractor binding frame 110. A tractor binding frame 110 A lower link connecting portion 160 and a binding piece 130 hinged to a lower link T-2 provided on a tractor T are formed in the transverse beam 150 of the tractor- And,
The work machine binding tool 200 includes a working machine binding frame 210 corresponding to the outer shape of the tractor binding tool 100 and a hooking shaft 220 hooked to the hook 120 at the center of the upper portion of the working machine binding frame 210, A working machine binding frame transverse beam 250 is formed below the working machine binding frame 210 and a transverse beam 250 is formed on the working machine binding frame transverse beam 250 so as to correspond to a position where the binding piece 130 is formed, (230) is protruded from the main body (200).
The method of claim 5,
An upper bracket (240) is formed on the upper portion of the work machine binding frame (210), and a plurality of holes are formed in the upper bracket to form a height adjusting gap (270) Transmissible work machine connection device.
The method of claim 5,
A width adjusting gap 260 is slidably coupled to the horizontal beam 250 and the width adjusting gap 260 is connected to a lower link of the working machine by a binding pin P- Connecting device for power transmission
The method according to claim 1,
The tractor binding unit 100 is provided with a binding shaft unlocking unit 500,
The binding shaft unlocking part 500 includes a handle 510, a connecting piece 520 having one end hinged to the handle, a connecting rod 530 coupled to the other end of the connecting piece and hinged to the binding shaft unlocking part connecting part 170 , An actuating piece (540) connected to the connecting rod, an elastic spring (550) having one end hinged to the actuating piece, and a restraining piece (560) hinged to the other end of the elastic spring Transmissible work machine connection device.

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