JP3426738B2 - Apron jumping device for rotary working machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [0001] BACKGROUND OF THE INVENTION The present invention relates to three points at the rear of a tractor.
Rotary tilling that can be lifted and lowered via a link mechanism
・ Rotary work such as soil crushing equipment and rotary scraping equipment
The present invention relates to an apron jumping device for a machine. [0002] 2. Description of the Related Art Conventionally, a three-point link mechanism is provided at the rear of a tractor.
Is mounted so as to be able to move up and down, and covers the upper part of the work rotor.
The upper end of the apron can be freely rotated at the rear end of the shield cover
To the work machine and the apron.
When the rod and the apron are flipped up by a certain angle
It can be locked in the flipped state and the locked state can be released
Rotary working machine with an apron locking device
For example, it is known from JP-A-2-249404.
You. When replacing the work claw of the work rotor,
When the Tari work machine crosses the ridge, when performing work on the shore
Lock the apron in a state where it is flipped up by a predetermined angle.
When it is necessary to keep this prior art rotary work machine
In, the apron is flipped up by a predetermined angle and
Lock and release the lock.
Change the position of the fulcrum rod,
Like switching the switching lever of the apron locking device
I have to. [0003] By the way, the above-mentioned conventional b
In a work machine, the apron is flipped up by a predetermined angle to
When locking in the flipped up state and releasing the lock,
The worker lifts the apron by a predetermined angle by hand
With the support of the compression rod
The position is switched by the switching lever, and the apron locking device
Switch the switching lever of the locking part to jump the apron by the specified angle.
Lock in the raised state or release the locked state
Operation is performed at the same time.
In addition, there is a problem that it requires great power and labor.
there were. The present invention aims to solve the above problems.
It was done. [0004] Means for Solving the Problems To achieve the above object,
The present invention uses a three-point link mechanism at the rear of the tractor.
Work rotor9Sea covering above
Cover11Apron at the rear end12Rotate the upper end of
Freely pivoted, work machine body10And apron12Between
And compression rod14And the apron12Where
When it flips up at a fixed angle, it locks in that flipping state and
Apron locking device that can release the locking state of
Rotary work machine1In the above apron locking device
Is the working machine body10Pivotally attached to the side so that it can rotate vertically
Re, Having an engaging groove 23 and an engaging hole 22a.Hook member2
2And this hook member22 engaging groove 23Can be engaged and disengaged with
Noni apron12Provided on the side, Having an engaging portion 21Moth
Id member20When,Engage with engagement hole 23a of hook member 22
The spring 29 is provided on the work machine body 10 side so as to be detachable.
A locking pin 27 havingCompression lock
Do14Apron without changing the fulcrum of12The predetermined angle
When the guide member rotates upward,20 engagements
Part 21Is the above hook member22 circumferenceAbut on the hook
Lumber22Rotate the guide member20 engaging portion 21The
Member22 engaging groove 23Automatically engage the
Apron from state12Is rotated further upward by a predetermined angle.
Then, hook member22TurnsLocking pin 27 is an engagement hole
Engaging with 22aLock and hook member22 of
Engagement groove 23And guide members20 engaging portion 21Engagement with
Characterized by being configured to be dynamically released
It is. [0005] According to the above construction, the rotary working machine according to the present invention has
The pron bouncer is an apron12Up a predetermined angle
Apron when rotating1
2Apron only by lifting the1
2Guide member20 engaging portion 21Is the work machine body10 sideof
Hook member22 engaging groove 23Automatically engaged and locked
Is done. Also, apron12Release the flip-up locked state of
When you do, use the apron12Have
When it is further rotated upward by a predetermined angle, the hook member22
TurnsThe locking pin 27 is engaged with the engagement hole 22a.Lot
At the same time as the hook member22And guide members20
Is automatically disengaged and the apron12Down
Can beBy the locking pin 27Locked foot
Member22IsThe locking pin 27 resists the spring pressure of the spring 29
By pullingGuide part by releasing lock
Lumber20Is a hook member22Back to a position where it can automatically engage
You. [0006] BRIEF DESCRIPTION OF THE DRAWINGS FIG.
This will be described specifically. In FIG. 4, reference numeral 1 indicates left and right directions.
Rotary work machine with long direction and crushing and scraping function
The top mast 2 and the lower connecting part 3 are provided at the front.
The well-known tractor (not shown)
3-point link mechanism consisting of top link and lower link
The top mast 2 and a pair of left and right lower connecting parts
Automatic hitch coupler 4 automatically connected to 3
Have been. Thus, the rotary work machine 1 is
It is mounted on the rear so that it can be moved up and down. In addition, the rotary working machine 1
Low through the transmission 5 from the PTO shaft of the tractor.
Forward from the gear box provided at the front of the tallying machine 1
Power is transmitted to the input shaft 6 projecting from the input shaft 6. Lower connection
Each of the parts 3 and 3 is adjusted up and down, and
Gauge wheel 7 with adjustable work depth
Have been killed. The power input to the input shaft 6 is transmitted to a gearbox.
Transmission gear provided on the side of the fuselage
The transmission is transmitted to the base 8 and is
Power to the working rotor 9 to be driven.
You. The upper part of the work rotor 9 is supported by the work machine body 10.
Covered by the shield cover 11
At the rear end of the cover 11, the upper end of the apron 12
3 for pivotal connection. Work machine body 10
Between the apron 12 and the compression rod 14
Is interposed. This compression rod 14
Is attached to the bracket 15 protruding from the upper surface of the apron 12.
The lower end is pivoted, and the upper end is
The rotation support piece 1 is attached to the support arm 16 projecting rearward.
It is slidably supported through the support 7. Also,
The spring 18 wound around the compression rod 14
The spring pressure is adjusted by moving the
The clause is possible. As shown in FIG. 1 to FIG.
A guide member 20 protrudes from the upper surface of the pron 12,
An engagement portion 21 is formed at an end. This engaging portion 21
The hook member 22 having the engaging groove 23 for engaging and disengaging is
A pair of support frames erected at the rear of the working machine body 10
Can be rotated vertically between pins 24 via pin 25
Is pivoted to. This hook member 22 is
Tension between material 22 and support frame 24
The lower surface is always above the work machine body 10 due to the spring 26.
It is urged to abut the surface. On one side of the support frame 24, a
When the lock member 22 is rotated upward to a predetermined angular position,
The hook engages with an engagement hole 22a formed in the hook member 22 to engage the hook.
Locking pin 27 for preventing rotation of the locking member 22 is provided.
I have. The locking pin 27 is attached to the support frame 28 via a spring 29.
To the left and right, and urged toward the hook member 22 side.
It is supported. Then, the engaging portion 21 is provided.
A guide member 20, a hook member 22 having an engagement groove 23,
An apron locking device is constituted by the locking pin 27 and the like.
You. Numeral 30 indicates the lower end of the apron 12 on the left and right sides.
It is a side leveler provided as possible. In the rotary working machine 1 having such a configuration,
When performing the usual crushing and scraping work,
Connected via a point link mechanism, as shown in FIG.
The apron 12 is lowered and the compression rod 14
The work is performed in a state in which is operated. Then, the working claw of the working rotor 9 is replaced.
Sometimes, when the rotary machine crosses the ridge, work on the shore
Apron 12 up to a predetermined angle
In the locked state. At this time, the apron 12 is
4 from the normal working state shown in FIG.
Then, it is pivoted upward and locked at a predetermined position. At this time,
First, the spring support seat 19 of the compression rod 14 is temporarily
As shown by the phantom line, lower the spring 18
And then hold the apron 12 in the direction of the arrow.
When the guide member 20 is flipped up to a predetermined angle,
Contacts the curved outer peripheral surface of the hook member 22 and pulls
Pin the hook member 22 against the elastic force of the tension spring 26
Is rotated slightly upward about the center 25, and the engaging portion 21 is engaged.
The elastic force of the tension spring 26 when entering the mating groove 23
The hook member 22 returns to the original position by the
Is automatically engaged, and the apron 12 is indicated by a virtual line.
Lock in the flip-up state. At this time,
The tip of the pad 14 does not rotate the rotation support piece 17.
Then, it slides forward in the rotation support piece 17 and the fulcrum (rotation support
It moves without changing the position of the piece 17). In the position rotated upward as described above,
When releasing the locked state of the stopped apron 12
From the locked state (the state of the phantom line in FIG. 1) to the apron.
12 is further rotated upward by a predetermined angle, the guide member
The hook member 22 connects the pin 25 via the engagement portion 21 of
Pivot slightly upward to the center and pierce the hook member 22
The engagement hole 22a and the tip of the locking pin 27 match.
The locking pin 27 is engaged by the urging force of the spring 29
As shown by the solid line in FIG.
The rotation of the member 22 is prevented and the locked state is established. This foot
When the lock member 22 is locked, the guide member 20
The engagement between the engagement portion 21 and the engagement groove 23 of the hook member 22 is automatically performed.
It will be released dynamically. That is, the apron 12
2 returns to the use state as shown by the solid line in FIG.
You. And, the spring support seat of the compression rod 14
Return spring 19 to its original position and activate spring 18
Work can be performed. [0013] Further, it is locked by a locking pin 27.
The hook member 22 applies the urging force of the spring 29 to the locking pin 27.
Pulls out of the engagement hole 22a by pulling it against
AndHook member 22Is unlocked and its own weight
Turn downTeAutomatically engages the guide member 20
Return to position. [0014] As described above, the rotary work of the present invention is
According to the apron jumping device of the industrial machine, the apron locking device
Is the work machine body10Pivotally attached to the side so that it can rotate vertically
Re, Having an engaging groove 23 and an engaging hole 22a.Hook member2
2And this hook member22 engaging groove 23Can be engaged and disengaged with
Noni apron12Provided on the side, Having an engaging portion 21Moth
Id member20When,Engage with engagement hole 23a of hook member 22
The spring 29 is provided on the work machine body 10 side so as to be detachable.
A locking pin 27 havingCompression lock
Do14Apron without changing the fulcrum of12The predetermined angle
When the guide member rotates upward,20 engagements
Part 21Is the above hook member22 circumferenceAbut on the hook
Lumber22Rotate the guide member20 engaging portion 21The
Member22 engaging groove 23Automatically engage the
Apron from state12Is rotated further upward by a predetermined angle.
Then, hook member22TurnsLocking pin 27 is an engagement hole
Engaging with 22aLock and hook member22 of
Engagement groove 23And guide members20 engaging portion 21Engagement with
Since it was configured to be released dynamically, the apron12To
When it is turned upward by a predetermined angle and locked in the flip-up state
Ki, apron12Lift it upward by a specified angle.
And by apron12Guide member20 engagement parts 2
1Is the work machine body10Side hook member22 engaging groove 23To
It can be automatically engaged and locked. Also, Ep
Ron12To release the flip-up lock state,
Apron in raised lock state12A predetermined angle further upward
By moving the hook member22TurnsLock pin
27 is engaged with the engagement hole 22a.Locked and at the same time
Hook member22And guide members20Automatically engages with
Apron released12Can be lowered. So
And locked hook member22And guide members20
IsPull out the locking pin 27 from the engaging hole 22aLock
By releasing the guide member20Is a hook member2
2Automatically returns to a position where it can be engaged.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side view of an apron flip-up device according to the present invention. FIG. 2 is an explanatory diagram of the operation. FIG. 3 is a diagram showing the hook member as viewed in the direction of arrow A in FIG. 1; FIG. 4 is a side view of the entire rotary working machine provided with the apron flip-up device of the present invention. [Description of Signs] 1 Rotary work machine 2 Top mast 3 Lower connecting part 4 Auto hitch coupler 5 Transmission shaft 5 6 Input shaft 7 Gauge wheel 8 Transmission case 9 Work rotor 10 Work machine body 11 Shield cover 12 Apron 13 Axis 14 Compression rod 15 Bracket 16 Support arm 17 Rotation support piece 18 Spring 19 Spring support seat 20 Guide member 21 Engagement part 22 Hook member 22a Engagement hole 23 Engagement groove 24 Support frame 25 Pin 26 Tension spring 27 Lock pin 28 Support frame 29 spring 30 side leveler

Claims (1)

(1 ) A rear end of a shield cover (11) that is mounted on a rear portion of a tractor via a three-point link mechanism so as to be able to move up and down, and covers an upper portion of a work rotor (9). The upper end of the apron (12) is rotatably pivoted on the part, and the compression rod (1 ) is provided between the work machine body (10) and the apron (12).
4) and a rotary working machine (1) provided with an apron locking device that locks the apron (12) in a flipped state when the apron (12) is flipped up by a predetermined angle and that can release the locked state.
In the above, the apron locking device is pivotally attached to the work machine main body (10) side so as to be vertically rotatable, and has an engagement groove (23) and an engagement hole.
A hook member (22) having an engaging portion (21) provided on the apron (12) side so as to be able to engage with and disengage from the engaging groove (23) of the hook member (22). An engaging hole (2) for the guide member (20) and the hook member (22).
3a) is provided on the work machine main body (10) side so that it can be engaged and disengaged.
And a locking pin (27) having a spring (29). When the apron (12) is turned upward by a predetermined angle without changing the fulcrum of the compression rod (14) , the guide member (20) ) Is in contact with the outer periphery of the hook member (22) so that the hook member (2)
2) is rotated, and the engaging portion (21) of the guide member (20 ) is rotated.
Is automatically engaged with the engagement groove (23) of the hook member (22), and when the apron (12) is further rotated upward by a predetermined angle from the engaged state, the hook member (22) rotates. The locking pin (27) engages with the engaging hole (22a) to lock , and the engaging groove (23) of the hook member (22) and the engaging portion of the guide member (20). (21) An apron flip-up device for a rotary working machine, wherein the engagement with (21) is automatically released.