CN105309068A

CN105309068A - Dragging type middle-sized disc harrow

Info

Publication number: CN105309068A
Application number: CN201410361797.8A
Authority: CN
Inventors: 秦吉强; 王成
Original assignee: YUCHENG YIJIA MACHINERY Co Ltd
Current assignee: YUCHENG YIJIA MACHINERY Co Ltd
Priority date: 2014-07-28
Filing date: 2014-07-28
Publication date: 2016-02-10
Anticipated expiration: 2034-07-28
Also published as: CN105309068B

Abstract

The invention discloses a dragging type middle-sized disc harrow. The dragging type middle-sized disc harrow comprises a front harrow set and a rear harrow set, wherein hinging arms extending to the middle are fixed to the same ends of the front harrow set and the rear harrow set, the top ends of the two hinging arms are hinged through a rotary shaft, a longitudinal beam is arranged between the front harrow set and the rear harrow set, the front end of the longitudinal beam is hinged to the front harrow set, a plurality of positioning holes are formed in the rear middle portion of the longitudinal beam, and an adjusting pin is arranged on the rear harrow set; two connecting plates are arranged on the front side of the front harrow set in a relatively fixed mode, and the two connecting plates are hinged to a traction assembly located in front of the connecting plates. Due to the fact that the front harrow set and the rear harrow set are hinged together, deflection adjustment is convenient and quick, time and labor are saved, and efficiency is extremely high. In work, a tractor is in one-point dragging connection with a harrow body, the influence of swinging of the tractor on a harrow disc and the harrow body is reduced, and then the service life of a whole set of equipment can be prolonged; when the disc harrow is transported in an idle state, the whole device is fixed to the tail of the tractor safely and firmly through a three-point suspension mechanism formed by a suspension hole and two suspension pins.

Description

Pull-alongs medium disc is harrowed

Technical field

The present invention relates to a kind of farm machinery, particularly relate to a kind of agriculture scarification equipment medium disc rake.

Background technology

Medium disc rake as agriculture scarification equipment, be widely used in hack after ploughing, seedbed preparation, clay fertilizer mixing and light in the stubble-cleaning operation of matter soil, after rake, grading can meet the agriculture requirement of spy, is the indispensable scarification equipment of agriculture field.Current medium disc rake structure as shown in Figure 1, 2, generally include front rake group 1 and rear rake group 3, both be connected to by pressing plate and standard component and hang in harrow frame 2, its complicated structure, when regulating rake group drift angle by angle adjustment plate 4, need to unclamp follower bolt respectively, people is for moving front rake group, rear rake group, and adjustment angle adjustment plate 4 co-bit is put, operates and comparatively bother, working strength is comparatively large, regulates efficiency low.In addition, existing medium disc rake is all suspension type, namely connect with tractor by carrying trifilar suspension, medium mounted harrow at work, because ground is high hollow uneven, whole rake is known from experience with tractor swing generation lateral stressed, greatly increases the axial load of blade, thus reduces the operation life-span of blade and whole disk harrow.

Summary of the invention

The object of the present invention is to provide a kind of pull-alongs medium disc to harrow, its front rake group and rear rake group drift angle conveniently regulate, blade axial load during reduction operation, extend blade and the pull-alongs medium disc in whole disk harrow operation life-span rake.

For realizing above-mentioned technical purpose, the present invention is by the following technical solutions: a kind of pull-alongs medium disc rake, it comprises front rake group and rear rake group, both are all fixed with the articulated jib extended to centre in same one end, two articulated jib tops are hinged by rotating shaft, a longeron is separately provided with between front rake group and rear rake group, described longeron front end adopts articulated manner to be connected with front rake group, the postmedian of longeron is provided with some vertical locating holes be equally spaced along length, rear rake group is then provided with an adjustment pin coordinated with the locating hole of longeron; Be provided with two connecting plates fixed corresponding thereto on front side of described front rake group, two connecting plates and the traction be positioned on front side of it are combined and are articulated and connected.

Described traction is combined hinged successively by universal tractor, draft arm and arc hitch frame and forms, described arc rear end, hitch frame both sides and two connecting plates hinged respectively by the rotating shaft of level, in the middle part of arc hitch frame, front side is then provided with a hinged seat, this hinged seat by rotating shaft and draft arm rear end hinged, the rotating shaft of described arc hitch frame rear end is mutually vertical with the rotating shaft of front end; Described front rake group and arc hitch frame keep fixed angle in the horizontal direction.

The middle front part of described draft arm is fixed with an arm-tie, one end of arm-tie and the middle front part of longeron are all installed on a U-shaped pulling seat, the pull bar be connected is provided with between two U-shaped pulling seats, draw combination when two U-shaped pulling seats are connected with pull bar and be in vertical state, the other end of described arm-tie is then provided with a suppending hole, the both sides of arc hitch frame are respectively provided with one and hang pin, and described suppending hole and two hangs the three-point hitch sold and be configured for being connected with tractor tail end.

Described adjustment pin is installed on one handle, and handle is fixed on the upside of rear rake group by rotating shaft, pulls handle and adjustment pin can be driven to move up and down.

The present invention has following beneficial effect: because front rake group and rear rake group adopt said structure, when regulating the drift angle of front rake group and rear rake, only need move the rear rake group other end, undertaken locking by the locating hole that adjustment pin is corresponding on longeron after position suitable, convenient to operation, time saving and energy saving, ultrahigh in efficiency; During operation, traction combination is in flat condition, and tractor and rake body are that towed is a bit connected, and reduces the impact of rocking blade and rake body of tractor, thus can extend the service life of complete equipment; During non-operation transport, traction combination is in vertical state, and the three-point hitch that whole device hangs pin formation by suppending hole and two is fixed on tractor rear, securely.

Accompanying drawing explanation

Fig. 1 is existing medium disc rake front view.

Fig. 2 is existing medium disc rake vertical view.

Structural representation when Fig. 3 is invention work.

Fig. 4 is the structural representation of the present invention when hanging transport.

In figure, 1, front rake group, 2, hang harrow frame, 3, rear rake group, 4, angle adjustment plate, 5, connecting plate, 6, arc hitch frame, 7, hang pin, 8, hinged seat, 9, rotating shaft, 10, draft arm, 11, arm-tie, 12, universal tractor, 13, U-shaped pulling seat, 14, pull bar, 15, longeron, 16, rotating shaft, 17, handle, 18, adjustment pin, 19, articulated jib, 20, suppending hole, 21, locating hole.

Embodiment

Shown in Fig. 2,3, a kind of pull-alongs medium disc rake disclosed by the invention, it comprises by main shaft, blade, a pipe, bearing combines and crossbeam forms front rake group 1 and rear rake group 3, both are all fixed with the articulated jib 10 extended to centre in same one end, two articulated jib 10 tops are hinged by rotating shaft 16, said structure ensure that front rake group 1 can rotate relatively with rear rake group 3, and then adjustable drift angle between the two, a longeron 15 is separately provided with between front rake group 1 and rear rake group 3, described longeron 15 front end adopts articulated manner to be connected with front rake group 1, the postmedian of longeron 15 is provided with some vertical locating holes 21 be equally spaced along length, rear rake group 3 is then provided with an adjustment pin 18 coordinated with the locating hole 21 of longeron 15, drift angle between front rake group 1 and rear rake group 3 regulate suitable after, coordinated by the locating hole 21 in adjustment pin 18 and longeron 15, front rake group 1 can be locked with the relative position of rear rake group 3, longeron 15 1 aspect provides sufficient tractive force for rear rake group 3, be used on the other hand locking with rear rake group 3 relative position front rake group 1, because longeron 15 is provided with multiple locating hole 21, multiple drift angle demand can be met, be provided with two connecting plate fixed corresponding thereto 5, two connecting plates 5 on front side of described front rake group 1 to combine with the traction be positioned on front side of it and be articulated and connected, described traction is combined hinged successively by universal tractor 12, draft arm 10 and arc hitch frame 6 and forms, described rear end, arc hitch frame 6 both sides and two connecting plates hinged respectively by the rotating shaft of level, in the middle part of arc hitch frame 6, front side is then provided with a hinged seat 8, this hinged seat 8 is hinged by rotating shaft 9 and draft arm 10 rear end, and the rotating shaft of described arc hitch frame 6 rear end is mutually vertical with the rotating shaft 9 of front end, described front rake group 1 keeps fixed angle in the horizontal direction with arc hitch frame 6, the middle front part of described draft arm 10 is fixed with an arm-tie 11, one end of arm-tie 11 and the middle front part of longeron 15 are all installed on a U-shaped pulling seat 13, the pull bar 14 be connected is provided with between two U-shaped pulling seats 13, two U-shaped pulling seats 13 draw combination when being connected with pull bar 14 and are in vertical state, the other end of described arm-tie 11 is then provided with a suppending hole 20, the both sides of arc hitch frame 6 are respectively provided with one and hang pin 7, described suppending hole 20 and two hangs the three-point hitch that pin 7 is configured for being connected with tractor tail end, described adjustment pin 18 is installed on one handle 17, and handle 17 is fixed on the upside of rear rake group 3 by rotating shaft, pulls handle 17 and adjustment pin 18 can be driven to move up and down.

When drift angle regulates, pull handle 17, adjustment pin 18 is made to move up and depart from locating hole 21, tractor moves forward and backward, drive front rake group 1 to move also phase countershaft 16 and rear rake group 3 to rotate, and then regulate front rake group 1 and the drift angle of rear rake group 3, adjustment pin 18 is inserted in corresponding locating hole 21 after angle is suitable, the position of rear rake group 3 can be positioned locking.

During operation, pull bar 14 is taken, traction combination is set level, then universal tractor 12 is utilized to be connected with tractor tail end, when operation, tractor and rake body are that towed is a bit connected, and reduce the impact of rocking blade and rake body of tractor, thus can extend the service life of complete equipment.

When non-operation is transported, traction combination is erected, and utilize pull bar 14 and two U-shaped pulling seats 13 are connected and are fixed, hang by suppending hole 20 and two three-point hitch that pin 7 forms and be fixed on tractor tail end, it is fixing comparatively firmly, safety.

Claims

1. a pull-alongs medium disc rake, it is characterized in that: it comprises front rake group and rear rake group, both are all fixed with the articulated jib extended to centre in same one end, two articulated jib tops are hinged by rotating shaft, a longeron is separately provided with between front rake group and rear rake group, described longeron front end adopts articulated manner to be connected with front rake group, and the postmedian of longeron is provided with some vertical locating holes be equally spaced along length, rear rake group is then provided with an adjustment pin coordinated with the locating hole of longeron; Be provided with two connecting plates fixed corresponding thereto on front side of described front rake group, two connecting plates and the traction be positioned on front side of it are combined and are articulated and connected.

2. a kind of pull-alongs medium disc rake according to claim 1, it is characterized in that: described traction is combined hinged successively by universal tractor, draft arm and arc hitch frame and forms, described arc rear end, hitch frame both sides and two connecting plates hinged respectively by the rotating shaft of level, in the middle part of arc hitch frame, front side is then provided with a hinged seat, this hinged seat by rotating shaft and draft arm rear end hinged, the rotating shaft of described arc hitch frame rear end is mutually vertical with the rotating shaft of front end; Described front rake group and arc hitch frame keep fixed angle in the horizontal direction.

3. a kind of pull-alongs medium disc rake according to claim 2, it is characterized in that: the middle front part of described draft arm is fixed with an arm-tie, one end of arm-tie and the middle front part of longeron are all installed on a U-shaped pulling seat, the pull bar be connected is provided with between two U-shaped pulling seats, draw combination when two U-shaped pulling seats are connected with pull bar and be in vertical state, the other end of described arm-tie is then provided with a suppending hole, the both sides of arc hitch frame are respectively provided with one and hang pin, and described suppending hole and two hangs the three-point hitch sold and be configured for being connected with tractor tail end.

4. a kind of pull-alongs medium disc rake according to claim 1, it is characterized in that: described adjustment pin is installed on one handle, handle is fixed on the upside of rear rake group by rotating shaft, pulls handle and adjustment pin can be driven to move up and down.