JP6692145B2 - Threshing equipment - Google Patents

Description

  The present invention relates to a threshing device provided with a side cover that covers a side of a handling room.

  A cover body rotatably supported so as to be able to switch between a closed state in which at least the side of the handling body for performing threshing processing is covered and an open state in which the cover body is opened, and an upward direction in which the cover body is opened. A threshing device described in Patent Document 1 including a gas damper or a biasing member including a gas spring that biases the side is conventionally known.

JP, 2013-90579, A

  In the above document, the cover body that is operated to open and close up and down is provided with a biasing member that biases upward in the opening direction, so that the opening operation of the cover body is assisted. In order to prepare for the increase in the weight of the cover body due to the deterioration of In case that the cover device that is operated in the open state is provided with a lock device that locks and unlocks separately from the cover body opening / closing operation, and the cover body opening / closing operation cannot be performed smoothly There was a problem that there is.

  The present invention relates to a cover body that is supported so as to be vertically rotatable so that it can be switched between a closed state in which at least a side of a threshing unit for performing threshing processing is covered and an opened state in which the cover body is opened, and the cover body is opened. In a threshing device including a gas damper or a biasing member composed of a gas spring that biases the cover body in an open direction, the cover body can be locked and unlocked easily and reliably in the open state, and An object of the present invention is to provide a threshing device capable of smoothly performing opening / closing operations with a small operation force.

In order to solve the above-mentioned problems, firstly, a cover rotatably supported so as to be switchable between a closed state in which at least the side of the handling barrel 24 for performing threshing processing is covered and an open state in which the handling barrel 24 is opened. In a threshing device including a body 27 and a biasing member 29 configured by a gas damper or a gas spring that biases the cover body 27 upward in the opening direction, the threshing device is operated in accordance with the switching of the cover body 27 to the open state. A locking device 32 that is stopped and holds the open state and that releases the locking with the closing operation of the cover body 27 is provided, and the locking device 32 switches the cover body 27 to the open state. with the provided with a clamping portion 47 for locking the locking piece 43 is configured to release the locking of the locking piece 43 by the clamping portion 47 along with the closing operation of the cover body 27, the locking piece 43 or one side of the sandwiching portion 47 is provided with the cover body 2 Is attached to the upper side of the open side of the frame of the threshing device, and the other side of the locking piece 43 or the sandwiching portion 47 is attached to the arm member 42 side connected to the upper end side of the biasing member 29. The locking device 32 is arranged along the direction in which the locking piece 43 mounted on the arm member 42 side or the sandwiching portion 47 expands / contracts the biasing member 29 by the opening / closing operation of the cover body 27. It is characterized in that the locking piece 43 and the holding portion 47 are automatically locked and unlocked by moving.

  The locking device releases the lock of the cover body by closing the cover body locked in the open state, so that the cover body can be released securely and smoothly without performing the unlocking operation of the cover body separately. The lock of the cover body can be released. Further, since the cover device is locked in the open state by the opening operation to the predetermined open state by the locking device, it is possible to reliably prevent the cover body from accidentally falling and to open the cover body. Since the biasing force of the biasing member acting on the operating side can be appropriately set, the cover body can be smoothly opened / closed with a small operating force.

  In addition, the locking device includes a holding portion that locks the locking piece when the cover body is switched to the open state, and locks the locking piece by the holding portion when the cover body is closed. According to the unlocking device, since the holding portion or the locking piece is operated in accordance with the opening / closing operation of the cover body, the locking / unlocking of the cover body in the open state can be easily operated and the locking device can be operated. The whole is compact and easy to construct.

It is a side view of a general-purpose combine to which the threshing device of the present invention is applied. It is a top view of the general-purpose combine which applied the threshing device of this invention. It is a principal part perspective view of the threshing apparatus which shows the state which switched the side cover to the open attitude. (A) is a rear view of the main part showing the closed state of the side cover, and (B) is a rear view of the main part showing the open state of the side cover. (A) is a side view of the main part showing the open state of the side cover, and (B) is a side view of the main part showing the closed state of the side cover.

  1 and 2 are a side view and a plan view of a general-purpose combine to which a threshing device of the present invention is applied, and FIG. 3 is a perspective view of essential parts of the threshing device showing a state in which a side cover is switched to an open posture. .. As shown in the figure, this general-purpose combine has a traveling machine body 2 supported by a pair of left and right crawler type traveling devices 1, 1 which is a traveling section, and is connected to the front of the traveling machine body 2 so as to be able to move up and down, and to harvest grain culms in a field. The reaper 3 for performing work is provided.

  The traveling machine body 2 is provided with a control section 4 on which an operator rides to perform a steering operation at a position near the right side of the rear of the mowing section 3 and is cut by the mowing section 3 on the diagonally left rear side of the control section 4. The threshing device 6 for performing the threshing work of the grain culm, etc. is installed, and the grain tank 7 for storing the grains, which is the processed product threshed by the threshing device 6, is arranged behind the control section 4 and on the right side of the threshing device 6, Behind the threshing device 6, there is provided a discharging section 8 for discharging straw and the like after threshing.

  The mowing unit 3 is provided on the feeder 9 that conveys the mowing culms to the threshing device side, the mowing frame 11 that is connected to the front end side of the feeder 9 and extends to the front side, and the front end side of the mowing frame 11. And a pair of left and right dividers 12, a pair of left and right support arms 13 and 13 extending forward from an upper side of a rear end portion which is a base portion of the mowing frame 11, and an extension of the left and right support arms 13. A take-up reel 14 rotatably erected and supported is provided between the outgoing ends.

  A reel cylinder 16 for moving the take-up reel 14 up and down with respect to the main body of the mowing section 3 by expansion and contraction is provided between the support arm 13 on one side of the left and right (the left side in the illustrated example) and the mowing frame 11. The support arm 13 on the other side is provided with a transmission case 17 that transmits power to the take-in reel 14. That is, the take-up reel 14 is moved up and down with respect to the main body side of the mowing unit 3, and is rotationally driven around its own axis by the power transmitted from the transmission case 17.

  According to the reaping unit 3 having the configuration, the grain culms in the field are divided into a reaping side that is between the left and right dividers 12 and a non-mopping side that is both the left and right outer sides of the reaping side. The planted grain culm is cut from the root side of the grain culm by a reciprocating type cutting blade (not shown) provided behind the divider 12 while being scratched by the scraping reel 14 toward the reaping unit 3. As a result, the harvested grain culm is sent to the front end side of the feeder 9 by the transport auger 18 on the side of the harvesting frame 11, and the grain culm transported by the feeder 9 is transported by the transport conveyor 19 provided inside the feeder 9. It is transported to the rear side. The cut culm transported to the rear end side of the feeder 9 is sent to the upper front end side of the threshing device 6.

  The threshing device 6 is the upper side of the threshing device 6 and performs the threshing part 21 for performing the threshing operation of the harvested culm conveyed from the feeder 9, and the threshing device 21 is the lower side and the threshing part 21 performs the threshing. It is composed of a sorting section 22 for sorting the processed product into grains and dust such as straw waste.

  The threshing section 21 includes a handling chamber 23 into which the whole harvested culm is put from the rear end side of the feeder 9, and a front and rear handling barrel rotating shaft formed over the entire front and rear direction of the handling chamber 23. A cylindrical handling cylinder 24 that is rotatably driven around and has a funnel-shaped front end side, and an arcuate shape that is below the handling cylinder 24 and has a depressed center along the shape of the handling cylinder 24. The receiving network 26 is provided.

  With this configuration, all the cut culms that have been thrown into the handling room 23 by the feeder 9 are processed (threshing processing) by the handling barrel 24 that is rotationally driven to become straw, and the straw is handled in the handling room 23. It is discharged from the rear discharge unit 8 to the outside of the machine. On the other hand, the processed material handled by the handling cylinder 24 contains grains such as paddy and scrap straw, etc., and is received by the receiving net 26 and leaks to the lower side, so that the sorting section It is introduced on the 22 side.

  In addition, an opening used for maintenance and the like is formed on the side of the handling chamber 23 (handle barrel 24), and the opening formed by the frame on the side of the threshing device can be opened and closed vertically. It is covered with (cover body) 27. The side cover 27 has an open state in which the side (the left side in the illustrated example) of the handling chamber 23 is opened by performing an upward pivoting operation (opening operation) about the hinge portion 25 on the upper end side as a fulcrum, and The handling chamber 23 (side) can be switched to a closed state by rotating the cover 27 downward (closing operation).

  As shown in FIG. 3, the side cover 27 includes a gas spring (biasing member) 29 for biasing the pair of front and rear side cover 27 provided on the inner surface of the rear side to rotate upward, and a side cover 27. An opening / closing operation tool 31 with a lock, which is provided in a pair in the front and rear and can be locked in the closed state, and a locking device 32 for fixing the side cover 27 in the open state where the side cover 27 is opened to a predetermined upper position are provided. The locking device 32 will be described later.

  One end of the gas spring 29 is pin-fixed to the upper side of a reinforcing portion 30 provided in a rib shape along the vertical direction on the inner surface side of the front and rear ends of the side cover 27 via a locking pin 40, and the other end. The side is pin-fixed to a fixing portion 35 provided on the front and rear surface sides of the frame body forming the side opening via a locking pin 45.

  According to this configuration, the gas spring 29 is pin-fixed by the locking pins 40 and 45 so as to be swingable with respect to the connecting portion (the side of the reinforcing portion 30 and the fixed portion 35), so that the side cover 29 is fixed. The opening and closing can be smoothly performed, and the biasing force of the gas spring 29 can be more stably applied to the side that opens the side cover 27. By the biasing force of the gas spring 29, the opening operation of the side cover 27 is assisted, and the opening operation of the side cover 27 can be smoothly performed with a small force.

  By the way, the gas spring 29 is not limited to this as long as it is an actuator that constantly urges the side cover 27 upward, and instead of the gas spring 29, other urging members such as a gas damper and an air cylinder are arranged. Is also good.

  The lock-equipped opening / closing operation tool 31 is arranged inside the side cover 27 that moves up and down in conjunction with an operation tool 31A disposed on the outer surface side of the side cover 27 and below the front and rear ends, respectively. The hook portion 31B is formed of a pair of hook members, and the engaging portion 31C is attached and fixed to the frame body and engages with the hook portion 31B when the side cover 27 is closed (FIGS. 3 to 3). (See FIG. 5).

  With this configuration, the side cover 27 in the opened state is closed to the closed position, and the hook portion 31B engages with the engaging portion 31C, whereby the side cover 27 is locked in the closed state. Further, the side cover 27 locked in the closed state is unlocked in the closed state by pulling the operation tool 31A to release the engagement by the hook portion 31B. When the lock in the closed state is released by the operation, the side cover 27 is rotated upward to some extent by the urging force of the gas spring 29.

  The sorting unit 22 is disposed on the lower side of the front of the swing sorting body 36 for swinging and sorting the processed material leaked from the receiving net 26, and sorts the sorting wind toward the rear upper side. Karato fan 37 that blows air, No. 2 selection fan 38 that discharges the sorted wastes to the outside of the machine, No. 1 spiral 39 that collects the grain that is the No. 1 selected by the Karatake fan 37, etc. The second spiral 41 for collecting the second one is provided.

  With this configuration, the processed material introduced into the sorting unit 22 is swing-sorted by the swing sorting body 36, and sorted into grain, straw waste, and the like by the sorting wind generated by the Karano fan 37 or the like. More specifically, the processed material leaked from the rocking sorting body 36 is hardly affected by the sorting wind from the Karawan fan 37, and falls slightly forward from the center of the sorting section 22 in the front-rear direction to cause the first spiral. 39 is picked by the 1st thing collected by 39 and the 2nd thing which is dropped to the back of the 1st helix 39 and is collected by the 2nd helix 41, which is slightly affected by the sorting wind. Is blown to the discharge section 8 side by the sorting wind.

  The No. 1 product is conveyed as grain into the Glen tank 7 by the No. 1 spiral 39 and the grain lifting device. The No. 2 product is returned to the upper side of the rocking sorting body 36 in the sorting unit 22 by the No. 2 spiral 41 and the reducing device, and the wind sorting is performed again.

  Next, the locking device will be described with reference to FIGS. 3 to 5. FIG. 4 (A) is a rear view of the main part showing the closed state of the side cover, FIG. 4 (B) is a rear view of the main part showing the open state of the side cover, and FIG. FIG. 5B is a side view of the main part showing the opened state of the side cover, and FIG. 5B is a side view of the main part showing the closed state of the side cover.

  The locking device 32 includes an arm member 42 provided at a connecting portion between the gas spring 29 and the side cover 27, a rod-shaped locking piece 43 provided on the arm member 42, and a side of the frame body on which the handling chamber 23 is opened. And a support portion (clamping mechanism for holding the locking piece 43) 44 which is provided at the upper end of the above and elastically holds and holds the locking piece 43.

  The support portion 44 is attached to the upper end portion of the frame body provided with the side cover 27 on the open side and is bent in a crank shape, and the support portion 44 is fixed to the end portion side of the attachment plate 46 and is locked. The holding unit 47 elastically holds the piece 43 in a detachable configuration (see FIG. 4B and the like).

  Specifically, the holding portion 47 is formed so as to elastically hold the round bar-shaped locking piece 43 by forming a pair of leaf springs in an arc shape, and the tip (lower end) side thereof has the side cover 27. A guide portion 47a is formed in a bent shape so that the pair of leaf springs are separated from each other so that the locking piece 43 that moves up and down by opening and closing is guided in the holding portion 47.

  The arm member 42 is a member having an angled cross section extending vertically along the gas spring 29, and the upper end side is connected to the upper end side of the gas spring 29 by a locking pin 40. An arm member 29 having an angled cross section is arranged so as to extend along the gas spring 29 so as to cover the inside and the rear of the handling chamber 23 of the gas spring 29 (see FIG. 4B, etc.). ).

  The upper end side of the arm member 42 is connected to the reinforcing portion 30 side via the upper end side of the gas spring 29. As a result, the arm member 42 is attached to a position where the strength is sufficiently maintained for connecting the gas spring 29. Further, the lower end side of the arm member 42 is not fixed, and the arm member 42 is provided so as to cover the gas spring 29 side by its own weight (see FIG. 4B and the like).

  Further, the arm member 42 is provided with a cushioning material 48 on the inner surface side having an L-shaped cross section, and the impact and contact noise caused by the contact between the arm member 42 and the gas spring 29 side when the side cover 27 is opened and closed. Has been relaxed.

  The locking piece 43 is a round bar member and is attached to the lower end side of the arm member 42 so as to project toward the handling chamber 23 side. The locking piece 43 is attached to the holding portion 47. The arm member 42 is provided so as to be sandwiched (locked) by the direction (see FIG. 4B and the like).

  In the locking device 32 configured as described above, when the side cover 27 locked in the closed state is unlocked and the side cover 27 is opened, the locking piece 43 moves upward along the extension operation of the gas spring 29. Then, when the side cover 27 is operated upward to a predetermined height position, the locking piece 43 is fitted into the holding portion 47 side and supported. That is, the side cover 27 is configured to be automatically locked by the locking device 32 when the side cover 27 is rotated upward to a predetermined position (open state).

  Further, the side cover 27 locked in the open state by the locking device 32 is operated to close against the elastic force of the holding portion 47 that elastically holds the locking piece 43, so that the locking piece 43 is held. When it is disengaged from the portion 47, the locking in the open state is released. After that, the side cover 27 is closed (rotated downward) by the closing operation against the biasing force of the gas spring 29, and the side cover 27 is handled by the closed state locking device 31 at the position where the side cover 27 is in the closed state. The chamber 23 can be locked in the closed state.

  When the locking device 32 is locked / unlocked in accordance with the opening / closing operation of the side cover 27, the locking piece 43 (and the arm member 42) moves in the direction in which the gas spring 29 extends and contracts. Since it moves along, the operation of engaging / disengaging the holding portion 47 is more stable.

  With this configuration, the side cover 27 is automatically locked by being rotated upward to a predetermined height position (opened state) without performing a separate locking operation, etc. Never forget to stop. As a result, the side cover 27 is securely locked in the open state, so that even if the side cover 27 becomes heavy due to dirt, dust, straw, etc., or rust, It is not necessary to increase the urging force of the spring 29, and it is possible to prevent the side cover 27 in the open state from unintentionally descending without disturbing the balance of the force required to open and close the side cover 27.

  Further, the side cover 27 locked by the locking device 32 in the open state is unlocked in the open state by closing the side cover 27 against the elastic force of the holding portion 47, so that the side cover 27 is released. It is not necessary to separately perform the unlocking operation or the like when the closing operation is performed, and it is possible to reliably prevent the situation of forgetting to unlock and to prevent the situation where the locking device 32 or the like is damaged. That is, the side cover 27 locked in the open state can smoothly and reliably perform the unlocking and closing operation in the open state only by the closing operation of the side cover 27.

  Furthermore, since the locking device 32 described above is provided at a position close to the height of the line of sight of the operator who operates the side cover 27, the locking and unlocking of the side cover 27 in the open state can be visually confirmed. It is easy to check with.

  By the way, when the cover body locked in the closed state is unlocked, the urging force of the gas spring 29 slightly rotates upward to the middle of the cover body against its own weight, and is locked in the open state. When the locking of the cover body is released, it is set so that the rotation position of the cover body is maintained on the spot, or the cover body slowly rotates downward to the middle part by its own weight, It is configured so that an operator can open and close the cover body with less operating force.

  The locking device 32 may be configured such that the locking piece 43 is provided on the upper end of the frame body on the opening side of the handling chamber 23 and the support portion 44 is provided on the gas spring 29 side. In other words, the installation locations of the support portion 44 and the locking piece 43 may be arranged in reverse.

Next, another embodiment of the locking device will be described.
The locking device 32 includes an arm member 42 provided at a connecting portion between the gas spring 29 and the side cover 27, and a support portion 44 provided at an upper end portion of the frame body on the opening side of the handling chamber 23. ..

  The support portion 44 is configured by forming a crank-shaped bent mounting plate 46 mounted on the upper end side of the open portion of the frame body by a leaf spring, and providing a roller member on the end side of the mounting plate 46. The arm member 42 is formed with a detent portion in which a plurality of arcuate concave portions into which roller members are fitted are arranged.

  With this configuration, the side cover 27 has a recess (detent portion) formed on the side of the arm member that moves upward together with the side cover 27 when the side cover 27 is rotated upward to a predetermined position. It is held in the combined position.

  At this time, by operating the side cover 27 in this state further to the upper rotation side, the roller member is fitted in the adjacent recessed portion side on the arm member 42, whereby the side cover 27 is locked in the open state. The position can be set in multiple steps.

  The locking device 32 may be configured such that the detent portion is provided on the upper end portion of the frame body on the opening side of the handling chamber 23 and the roller member is provided on the gas spring 29 side. In other words, the installation positions of the detent part and the roller member may be reversed.

24 Handling cylinder 27 Side cover (cover body)
29 Gas spring (biasing member)
32 Locking device

Claims (1)

A cover body (27) rotatably supported so as to be able to switch between a closed state in which at least a side of the handling barrel (24) for performing threshing processing is covered and an open state in which it is opened;
A threshing device provided with a biasing member (29) consisting of a gas damper or a gas spring for biasing the cover body (27) upward in the opening direction,
A locking device (32) which is locked by switching the cover body (27) to the open state and holds the open state and which is released by the closing operation of the cover body (27). Is provided
The locking device (32) includes a holding portion (47) that locks the locking piece (43) when the cover body (27) is switched to the open state, and closes the cover body (27). It is configured to release the locking of the locking piece (43) by the holding part (47) in accordance with the operation,
One side of the locking piece (43) or the sandwiching portion (47) is attached to the upper side of the open side of the frame body of the threshing device provided with the cover body (27). The other side of the sandwiching portion (47) is attached to the arm member (42) side connected to the upper end side of the biasing member (29), and the locking device (32) is attached to the cover body (27). By the opening / closing operation, the locking piece (43) or the sandwiching portion (47) attached to the arm member (42) side moves along the direction in which the urging member (29) extends and contracts. A threshing device configured such that the locking piece (43) and the holding part (47) are automatically locked / unlocked.

Images