CN115280922B - Gravity-center-adjustable ditching machine - Google Patents

Abstract

The invention relates to the technical field of agricultural machinery, and particularly discloses a gravity center adjustable ditcher which comprises a frame assembly, a power assembly and a transmission assembly, wherein the frame assembly comprises a supporting box for installing the power assembly and the transmission assembly, the power assembly is used for providing power for the transmission assembly, the transmission assembly is used for driving a cutter or a travelling wheel to rotate, a mud guard is fixedly connected onto the supporting box, a mounting plate is fixedly connected onto the supporting box, a connecting plate is rotationally connected onto the mounting plate, a resistance rod is fixed onto one end of the connecting plate, which is far away from the mounting plate, and locking pieces capable of locking the two to rotate are connected onto the mounting plate and the connecting plate. The scheme is used for solving the problem that the conventional ditching machine cannot consider the stability of ditching and ridging and the flexibility of rotary tillage weeding.

Description

Gravity-center-adjustable ditching machine

Technical Field

The invention relates to the technical field of agricultural machinery, in particular to a ditcher with an adjustable gravity center.

Background

In the existing two-drive ditching machine, only one power output shaft of the ditching machine is used for installing a cutter or a travelling wheel, and the travelling wheel is used when the ditching machine runs on a road surface; when the ditcher performs agricultural operation, the cutters are replaced according to different requirements, for example, a ditching and hilling cutter with narrow size is used when ditching and hilling are performed, and a cutter with wide size is used when rotary tillage and weeding are performed; however, on the ditcher, if the ditcher has better stability in ditching and ridging, the ditcher has poorer flexibility in rotary tillage and weeding; the reason for this is that: in the operation process of the ditcher, the whole equipment is supported by utilizing a narrow cutter to cooperate with a resistance rod and a supporting wheel, but because the ditching and hilling are required to dig deeper ditches, the resistance of the equipment in the ditching process is very large, and if the gravity center of the ditcher is high, the ditcher is easy to be unstable and turn on one's side; if the stability of the ditching machine is improved, the gravity center height of the ditching machine needs to be reduced, but after the gravity center height is reduced, although the stability in ditching and ridging is improved, when the ditching machine is used for rotary tillage weeding, the difficulty of swinging the ditching machine is improved, namely the flexibility is reduced when the weeds in different areas want to be weeding, an operator needs to apply larger control force to enable the ditching machine to swing to the position where the weeds grow when the rotary tillage weeding is caused, and the easy control performance when the ditching machine is used for rotary tillage weeding is reduced.

In addition, when the ditcher works, the soil or weeds cut by the cutter can be thrown out, in order to reduce the impact of the thrown out soil or weeds on surrounding personnel, on nearby crops or on the land with the ditcher, a mud guard is arranged on the ditcher frame, the angle of the current mud guard can be adjusted basically, but when the angle of the current mud guard is adjusted, the locking structure connected with the mud guards at two sides is required to be unscrewed firstly, then the angle is adjusted, finally the locking structure is locked again, and the whole adjustment process is simple but also complicated.

In addition, in the ditching and ridging process, a plurality of mud blocked by the mud guard from splashing can fall back into the groove, so that the groove is backfilled by crushed soil, and the ditching depth of the groove is reduced.

Disclosure of Invention

The invention aims to provide a ditching machine with an adjustable gravity center, so as to solve the problem that the conventional ditching machine cannot achieve both ditching and ridging stability and rotary tillage and weeding flexibility.

In order to achieve the above purpose, the invention adopts the following technical scheme:

The utility model provides an adjustable type ditching machine of focus, including frame assembly, power assembly and drive assembly, the frame assembly is including the supporting box that is used for installing power assembly and drive assembly, and power assembly is used for providing power for drive assembly, and drive assembly is used for driving cutter or walking wheel and rotates, fixedly connected with fender on the supporting box, fixedly connected with mounting panel on the supporting box, rotate on the mounting panel and be connected with even board, even the board is kept away from the one end of mounting panel and is fixed with the resistance stick, is connected with on mounting panel and the even board and can lock both pivoted locking piece.

The principle and the advantages of the scheme are as follows: when the ditching and hilling device is in practical application, when the gravity center is required to be low, the mounting plate can rotate relative to the connecting plate connected with the resistance rod, so that the supporting box connected with the mounting plate is inclined, the locking piece is used for locking the connecting plate and the mounting plate, the transmission assembly and the power assembly arranged on the supporting box are inclined along with the connecting plate, and the total mass of the transmission assembly and the power assembly is the heaviest part of the whole ditching machine, so that the gravity center position is transferred to the oblique rear part of the cutter from the top part of the original cutter, the heights of the transmission assembly and the power assembly are reduced, the gravity center of the ditching machine is reduced, and the stability of the ditching and hilling process of the ditching machine is improved; and when carrying out rotary tillage weeding, only need the opposite direction operation for the mounting panel opposite direction rotates, returns to vertical state once more until the supporting box, and the focus of ditching machine resumes the highest position this moment, and the focus helps the swing flexibility of ditching machine after improving, and simultaneously when rotary tillage weeding, the flexibility of ditching machine in rotary tillage weeding in-process can be ensured to the high focus cooperation supporting wheel on the ditching machine. Therefore, the scheme can give consideration to the stability of ditching and ridging and the flexibility of rotary tillage weeding through the adjustment of the gravity center. In addition, after the supporting box of ditching machine gets back to vertical state, the gravity of ditching machine is exerted on the cutter more for the cutter receives the pressure when rotary tillage weeding bigger, and the effect of entering soil is better, more is favorable to carrying out rotary tillage weeding in hard soil.

In addition, under the condition that the gravity center is lowered, the supporting box is inclined, the acting force given to the supporting box by the transmission assembly and the power assembly can be divided into horizontal component force and vertical component force, the direction of the vertical component force is downward so as to ensure the stability of the ditching machine, and the horizontal component force is toward the advancing end of the ditching machine and is equivalent to the horizontal component force to give an advancing force to the ditching machine, so that the power of the ditching machine is improved, and the difficulty of ditching and ridging is relatively reduced.

In addition, because the whole supporting box is inclined, the mud guard is inclined along with the whole supporting box, and the rear part of the mud guard, which is close to the resistance bar, is downward and upwards tilted towards the front part of the driving front end of the ditcher, so that the resistance of splashed soil on the driving front end is smaller, more soil is thrown out towards the driving front end of the ditcher, the probability that the soil falls back into a groove at the driving rear is reduced, and the ditching hilling depth is relatively favorable to be improved.

Preferably, as an improvement, the locking piece comprises a plug rod, a protruding portion is fixed on the plug rod, one of the mounting plate and the connecting plate is provided with a mounting hole, the other one of the mounting plate and the connecting plate is provided with a first adjusting hole, the number of the first adjusting holes is at least two, the distances between all the mounting holes, the first adjusting holes and the rotating center of the connecting plate are equal, and the protruding portion is in concave-convex fit with the first adjusting holes and the mounting holes.

The beneficial effects are that: according to the scheme, after different first adjusting holes are aligned with the mounting holes, the angles of the supporting box and the ground are also different, and after the inserted link is inserted into the aligned first adjusting holes and the mounting holes, locking of the rotation angles of the mounting plate and the connecting plate is achieved.

Preferably, as an improvement, an arc through groove is arranged between the adjacent first adjusting holes, the arc through groove is communicated with the adjacent first adjusting holes, the center of the arc through groove is concentric with the rotation center of the connecting plate, a blocking shoulder is arranged on the protruding portion, an elastic piece is sleeved on the inserting rod, a baffle is arranged at one end of the inserting rod, which is far away from the protruding portion, the elastic piece is located between the baffle and the connecting plate, the blocking shoulder and the elastic piece are located at two sides of the connecting plate, and the protruding portion is inserted on the first adjusting holes and the mounting holes in a matched mode by the blocking shoulder and the elastic piece.

The beneficial effects are that: when the scheme is adopted, through the arrangement of the retaining shoulder and the elastic piece, the inserted link inserted into the first adjusting hole and the mounting hole is not easy to fall from the mounting hole and the first adjusting hole. In addition, the elastic component is located between baffle and the link for when angle adjustment, only need the pulling inserted bar, make the fender shoulder keep away from the elastic component (make the elastic component take place elastic deformation and accumulate elastic potential energy through the baffle on the inserted bar this moment), the polished rod section of inserted bar just can slide to the path of first regulation hole and the intercommunication of arc logical groove this moment, make things convenient for the polished rod section of inserted bar to slide in the arc logical inslot, and then realize the angle modulation of mounting panel and link, after angle adjustment is put in place, loosen the effort to the inserted bar again, then the inserted bar will make the bellying on the inserted bar insert on first regulation hole and the mounting hole voluntarily under the elasticity of elastic component, further make the process of angle adjustment more simple and fast.

Preferably, as an improvement, the resistance bar is detachably connected with supporting wheels symmetrical to the resistance bar, and the height of the supporting wheels can be adjusted.

The beneficial effects are that: through the setting of symmetrical supporting wheel for when ditching hilling, can strengthen the stability to the ditcher through the supporting wheel. In addition, the height of the supporting wheel can be adjusted, so that the ditching machine can conveniently work on different soil, for example, when ditching and hilling are carried out on soft soil, the position of the supporting wheel can be adjusted higher than the resistance rod, so that the bottom of the resistance rod can be lower than the supporting wheel, the supporting wheel supports the ditching machine in the whole ditching and hilling process, the resistance rod is inserted into soil to increase the resistance of the ditching machine, and the operability of the ditching and hilling process is improved. And when working in the hard soil, the supporting wheel can be regulated down so that the resistance rod can not be inserted into the soil, thereby reducing the resistance of the ditcher and improving the operability of the ditcher.

When this scheme is used for rotary tillage weeding, can utilize the backing wheel on the resistance bar and the cutter of ditching machine to support the ditching machine simultaneously, ensure the swing flexibility of ditching machine under the backing wheel supports.

Preferably, as an improvement, the mounting plate is provided with two connecting parts, the two connecting parts are respectively and fixedly connected with the middle part and the lower part of the supporting box, and two connecting parts and two connecting lines between the locking parts form a triangle.

The beneficial effects are that: this scheme is through the setting of two connecting portions for the connection between mounting panel and the supporting box forms stable triangle-shaped, has improved after whole ditcher slope, promptly after the focus moves down, the mounting panel supports intensity to the supporting box that has transmission assembly and power assembly.

Preferably, as an improvement, the number of the mounting plates is two, the two mounting plates are symmetrically arranged about the connecting plate, and the shoulder and the elastic piece are respectively abutted against the two mounting plates; an armrest pipe is fixedly arranged between the two mounting plates, the mounting plates enclose the armrest pipe, a soil breaker is arranged at the bottom of the armrest pipe, and the top of the armrest pipe is connected with an armrest frame.

The beneficial effects are that: this scheme is through the setting of handrail pipe and two symmetrical mounting panels for when inclining the ditching machine, can be through exerting external force on handrail frame or handrail pipe, so that the relative even board of mounting panel takes place to rotate, make the focus adjustment of ditching machine more laborsaving.

In addition, because the bottom of handrail pipe is installed the breaker, the breaker can be with earth contact, so when ditching hilling, the breaker not only can solve the circumstances that the soil of supporting box below can't be minced by the cutter at present and the weeping appears, can also realize the support to the supporting box of slope through the breaker, improves the mounting panel and to the supporting strength of supporting box, also helps the stability of ditching machine at ditching hilling in-process simultaneously.

Preferably, as an improvement, the handrail pipe is axially and slidably connected with a connecting pipe, a shaping plate is fixed on the connecting pipe, the shaping plate is positioned below the mounting plate, and the shaping plate can be attached to the side wall of the trench after the ditching and ridging of the ditching machine.

The beneficial effects are that: according to the scheme, the shaping plate is arranged, so that the shaping plate can shape a well-opened groove, meanwhile, the broken soil backfilled into the groove is scraped in the operation process of the ditcher, the probability of backfilling the groove with the broken soil is reduced, meanwhile, the shaping plate is attached to the side wall of the groove, the shaping plate is enabled to have a certain effect on supporting the ditcher, and the stability of the ditcher in the ditching and ridging process is improved; in addition, the height of the shaping plate can be adjusted by arranging the connecting pipes, so that the shaping plate is suitable for ditching and ridging requirements under different soil qualities, the practicability of the ditching machine is improved, for example, for soft soil, the resistance of the ditching machine is increased, the stability is improved, the shaping plate is downwards adjusted, and the contact area of the shaping plate and a groove is increased; and ditching and ridging are carried out on hard soil, so that the resistance brought by the shaping plate is reduced, the shaping plate can be lifted and even detached, and the normal ditching and ridging function of the ditching machine is ensured.

Preferably, as an improvement, the bottom of the handrail tube is sleeved with an adjusting tube, the height of the adjusting tube can be adjusted on the handrail tube, and the breaker is fixedly connected to the bottom of the adjusting tube.

The beneficial effects are that: the height adjustment can be carried out along with the height adjustment of the adjusting pipe to the soil breaker of this to make the ditcher also can be through the height adjustment of adjusting the adjusting pipe when carrying out ditching hilling on different soil, adjust the depth that the soil breaker inserted into soil, and then adjust the resistance of ditcher, in order to improve the maneuverability of ditcher.

Preferably, as an improvement, the armrest frame is provided with an armrest connecting block which is rotationally connected to an armrest pipe, and the armrest pipe is in clearance fit with a connecting rod capable of sliding and rotating; be equipped with the arc regulation hole on the handrail connecting block, the connecting rod can be located the arc regulation downthehole, and the interval between connecting rod and arc regulation hole and the rotation center of handrail connecting block equals, connecting rod one end fixedly connected with stopper, connecting rod other end threaded connection have the retaining member, be equipped with on the handrail connecting block can with the unsmooth complex of stopper a plurality of constant head tanks, retaining member and stopper can support the handrail connecting block tightly on the handrail pipe.

Preferably, as an improvement, the fender includes fixed baffle and two adjustable stops, and fixed baffle is fixed on the supporting box, and adjustable stop is located the fixed baffle both sides and homoenergetic relatively fixed baffle rotates, and fixed baffle includes left dog and right dog that fixed connection and symmetry set up, and left dog and right dog all are the curved plate, and the interior concave surface of curved plate is towards ground, and the curved plate extends to the cutter rear from the cutter place ahead, and the interior concave surface of curved plate outwards turns up, and the interior concave surface of curved plate is greater than the valgus range of ditcher travel rear end at ditcher travel front end at the valgus range of valgus.

The beneficial effects are that: according to the scheme, the fixed baffle is made into the left baffle block and the right baffle block which are curved plates, the curved plates of the left baffle block and the right baffle block are turned outwards, so that when the mud guard is used for ditching and hilling, soil thrown by a cutter of a ditching machine can be blocked by the curved plates and falls, meanwhile, the inner concave surface of the curved plates turns outwards, a part with large turning-out amplitude is located at the front end of the ditching machine, when ditching and hilling are carried out, the ditching machine inclines, the mud guard inclines along with the supporting box, so that soil thrown by the ditching and hilling falls towards the lateral side of the driving front end of the ditching machine, the situation that soil can be backfilled into a well-opened groove is guaranteed, the amount of the soil splashed into the driving front end of the ditching machine is reduced, the soil thickness of the ditching and hilling position is increased due to the fact that the soil splashes to the front side is reduced, the probability of not affecting ditching and backfilling of soil is greatly reduced.

Preferably, as an improvement, an angle adjusting piece is arranged between the fixed baffle and the movable baffle, the angle adjusting piece comprises a friction shaft and a clamping plate, one of the friction shaft and the clamping plate is fixed on the movable baffle, the other of the friction shaft and the clamping plate is fixed on the fixed baffle, the clamping plate comprises two opposite clamping pieces, half containing cavities are formed on opposite surfaces of the two clamping pieces, and the two half containing cavities of the clamping plate clamp the friction shaft.

The beneficial effects are that: when needs carry out angle modulation to movable baffle relatively fixed baffle, only need artifical hand to grasp the movable baffle, through exerting steering force for the movable baffle, and then make movable baffle relatively fixed baffle take place to rotate, after angle modulation, withdraw the external force to the movable baffle after, the friction shaft is pressed from both sides tightly at two half holding intracavity by two clamp pieces, the friction shaft no longer takes place to rotate, also make movable baffle and fixed baffle lock this angle after relative angle modulation automatically, need not earlier to loosen locking structure in order to carry out angle modulation and lock locking structure again after angle modulation is accomplished like prior art, whole adjustment process of this scheme is one step in place, it is simple quick.

In addition, in this scheme, because of the angle of relying on frictional force to keep the fender between the friction axle of angle adjusting part and the two clamping pieces, so in angle adjusting range, compare prior art's angle gear and adjust, this scheme can realize the electrodeless regulation of angle, has increased the practicality of this scheme.

Drawings

Fig. 1 is a front view of an embodiment of the present invention with its center of gravity lowered.

Fig. 2 is a front view of an embodiment of the present invention with its center of gravity raised.

Fig. 3 is a front view of the fender and cutter of fig. 1 removed.

Fig. 4 is an isometric view of a fender according to an embodiment of the invention.

Fig. 5 is a front view of fig. 4.

Fig. 6 is a left side view of fig. 5.

Fig. 7 is a left side view of fig. 5 after the angle of the movable fender is adjusted.

Fig. 8 is an exploded view of the angle adjuster on the fender.

Fig. 9 is an isometric view of an embodiment of the present invention with the frame assembly, powertrain, and drive assembly removed.

Fig. 10 is a schematic three-dimensional structure of fig. 9 at another view angle.

Fig. 11 is an exploded view of fig. 9.

Fig. 12 is a top view of fig. 9.

Detailed Description

The following is a further detailed description of the embodiments:

Reference numerals in the drawings of the specification include: the handrail tube 1, the reinforcing column 11, the handrail frame 2, the mounting plate 3, the connecting part 31, the connecting plate 4, the first adjusting hole 41, the fixing sleeve 42, the resistance rod 5, the connecting block 6, the arc adjusting hole 61, the reinforcing plate 62, the positioning groove 63, the connecting rod 7, the locking sleeve 8, the inserting rod 9, the protruding part 91, the shoulder 92, the baffle 93, the spring 10, the adjusting sleeve 20, the supporting wheel 30, the connecting tube 40, the shaping plate 50, the adjusting tube 60, the breaker 70, the supporting box 100, the power assembly 200, the cutter 300, the mud guard 80, the fixing baffle 801, the movable baffle 802, the friction shaft 803, the clamping plate 804 and the limiting plate 805.

An embodiment is basically as shown in fig. 1 to 12, and referring to fig. 1 to 3, the gravity center adjustable ditcher comprises a frame assembly, a power assembly 200 and a transmission assembly, wherein the frame assembly comprises a supporting box 100 for installing the power assembly 200 and the transmission assembly, the power assembly 200 is used for providing power for the transmission assembly, the power assembly 200 is an engine, the transmission assembly comprises a speed reducer and an output shaft of the speed reducer, the engine is fixedly connected to the top of the supporting box 100, the transmission assembly is located inside the supporting box 100, the output shaft of the transmission assembly is rotatably connected to the supporting box 100 and penetrates through the supporting box 100, and a cutter 300 or a travelling wheel can be fixedly installed on the output shaft.

Referring to fig. 4 to 8, a fender 80 is fixedly connected to the supporting case 100, the fender 80 is located above the cutter 300, the fender 80 includes an angle adjusting member, a fixing baffle 801, and two structurally symmetrical movable baffles 802, the angle adjusting member is used for connecting the fixing baffle 801 and the movable baffles 802, so that the movable baffles 802 can rotate relative to the fixing baffle 801, and the fixing baffle 801 is fixed on the supporting case 100.

The angle adjusting member includes a friction shaft 803 and a clamping plate 804, in this embodiment the clamping plate 804 is fixedly connected to the fixed damper 801, and the friction shaft 803 is fixedly connected to the movable damper 802. The clamping plate 804 comprises two opposite clamping plates, the opposite surfaces of the two clamping plates are respectively provided with a half-containing cavity, the two half-containing cavities enclose the friction shaft 803, the two half-containing cavities of the clamping plate 804 clamp the friction shaft 803, the contact sections of the friction shaft 803 and the half-containing cavities are cylindrical sections, and the surfaces of the half-containing cavities and the friction shaft 803 are in contact are curved surfaces. The friction shaft 803 is U-shaped, the cylindrical section of the friction shaft 803 is located in the middle of the friction shaft 803, and two free ends of the friction shaft 803 are flat and welded with the movable baffle 802.

The two clamping pieces are fixedly connected with the fixing baffle 801 through bolts, and when the friction shaft 803 is clamped by the two half accommodating cavities, a gap exists between the two clamping pieces.

The clamping piece of the angle adjusting piece positioned at the top is welded with a limiting plate 805, and the limiting plate 805 is used for limiting the maximum angle formed by the movable baffle 802 and the fixed baffle 801 after rotating.

The fixed baffle 801 includes left dog and right dog that integrated into one piece and symmetry set up, and left dog and right dog all are curved panel, and curved panel's interior concave surface is towards ground, and curved panel extends to the cutter 300 rear from the cutter 300 the place ahead of ditcher, and curved panel's interior concave surface outwards turns up, and curved panel's interior concave surface is greater than the valgus range of ditcher rear end at ditcher's front end.

The flapper 802 is also a curved plate that also extends from the front of the cutter 300 to the rear of the cutter 300 of the ditcher.

Referring to fig. 9 to 12, two symmetrical mounting plates 3 are fixedly connected to the supporting box 100 through bolts, a handrail tube 1 is welded between the two mounting plates 3, the mounting plates 3 enclose the handrail tube 1, a ground breaker 70 is arranged at the bottom of the handrail tube 1, and the top of the handrail tube 1 is connected with a handrail frame 2; the two mounting plates 3 are simultaneously and rotatably connected with a connecting plate 4, one end of the connecting plate 4 far away from the mounting plates 3 is fixedly provided with a resistance rod 5, and the mounting plates 3 and the connecting plate 4 are connected with locking pieces capable of locking the rotation of the two; the mounting plate 3 is provided with two connecting parts 31 which are integrally formed, the two connecting parts 31 are respectively fixedly connected with the middle part and the lower part of the supporting box 100, a notch is formed between the two connecting parts 31, the mounting plate 3 and the handrail tube 1 are conveniently welded through the notch, and meanwhile, the space between the two connecting parts 31 above is larger than the space between the two connecting parts 31 below, so that the two connecting parts 31 on the same mounting plate 3 are different from the laminating condition of the handrail tube 1, and the existence of the notch can also facilitate the simultaneous forming of the two connecting parts 31. On the same mounting plate 3, two connecting parts 31 and two connecting lines of the locking pieces form a triangle.

The locking piece is a plug rod 9, a protruding part 91 is welded on the plug rod 9, one of the mounting plate 3 and the connecting plate 4 is provided with a mounting hole, the other is provided with first adjusting holes 41, the number of the first adjusting holes 41 is at least two, arc-shaped through grooves are processed between every two adjacent first adjusting holes 41, and meanwhile, the arc-shaped through grooves are communicated with the adjacent first adjusting holes 41; all the mounting holes, the first adjusting holes 41, the arc barrel grooves and the rotation center of the connecting plate 4 are equal in distance (the centers of the arc through grooves are concentric with the rotation center of the connecting plate 4), and the polished rod section of the inserted rod 9 can slide in the arc through grooves. The mounting hole and the first adjustment hole 41 can be mated with the boss 91 on the plunger 9 in a concavo-convex manner after alignment. In this embodiment, the mounting holes are formed in the mounting plate 3, the first adjusting holes 41 are formed in the connecting plate 4, and the number of the first adjusting holes 41 is 2. The number of the first regulation holes 41 in this embodiment is 2. The end part of the inserted link 9 is integrally formed with a handle which is perpendicular to the inserted link 9.

The protruding part 91 is provided with the stop shoulder 92, the end part of the inserted link 9, which is far away from the protruding part 91, is sleeved with the baffle 93, the polished rod section of the inserted link 9 between the baffle 93 and the stop shoulder 92 is sleeved with an elastic piece, the elastic piece and the stop shoulder 92 are positioned on two sides of the connecting plate 4, the elastic piece is a spring 10, one end of the spring 10 can be abutted against the baffle 93, and the other end of the spring 10 can be abutted against the mounting plate 3; that is, when in use, the cooperation of the shoulder 92 and the spring 10 enables the boss 91 to be quickly inserted into the first adjustment hole 41 and the mounting hole; after the boss 91 is inserted into the first adjustment hole 41 and the mounting hole, the shoulder 92 abuts against one mounting plate 3, and the spring 10 abuts against the other mounting plate 3.

The end of the boss 91 remote from the shoulder 92 is formed with a guide surface. To facilitate quick insertion of the boss 91 into the adjustment aperture and mounting aperture.

The fixed cover 42 is welded at one end of the connecting plate 4 far away from the handrail tube 1, the resistance rod 5 is sleeved on the fixed cover 42, a plurality of locking holes and a plurality of adjusting holes are formed in the height direction of the resistance rod 5, and holes which can be aligned with the locking holes are formed in the fixed cover 42 so as to conveniently fix the resistance rod 5 on the fixed cover 42 through bolts or bolts through the locking holes, and meanwhile, the height of the resistance rod 5 is adjusted through different locking holes.

The axial sliding connection has the adjustment sleeve 20 on the resistance bar 5, the processing has the hole that can align with the adjustment hole on the adjustment sleeve 20, welding connecting rod on the adjustment sleeve 20, the connecting rod both ends rotate and are connected with two supporting wheels 30, two supporting wheels 30 set up about the resistance bar 5 symmetry, this embodiment can realize the fixed connection of resistance bar 5 and adjustment sleeve 20 through the mode of inserting the locking pin on the adjustment hole that aligns and the hole of adjustment sleeve 20 to realize the installation of supporting wheel 30 on the resistance bar 5 body, the while is through the high adjustment of the realization supporting wheel 30 of the with of the regulation hole of difference.

The lower part of the handrail tube 1 is axially and slidably connected with a connecting tube 40, an extension tube is welded on the connecting tube 40, a shaping plate 50 is welded on the extension tube, and the shaping plate 50 can be attached to the side wall of the trench after the trench is ditched and ridged by the ditcher.

The connection pipe 40 is processed with a plurality of height adjusting holes along the height direction, and the handrail pipe 1 is processed with a through hole matched with the height adjusting holes.

The bottom of the handrail tube 1 is sleeved with a regulating tube 60, the bottom of the regulating tube 60 is welded with a soil breaker 70, the regulating tube 60 is sleeved in the connecting tube 40, the regulating tube 60 is also provided with a plurality of assembly holes along the axial direction, the regulating tube 60 is provided with a matching hole aligned with the assembly hole on the regulating tube 60, and the connecting tube 40 and the regulating tube 60 form fixed connection in a mode of inserting a bolt or a mounting bolt into the aligned assembly hole and the matching hole. And when the different assembly holes are aligned with the assembly holes, the height positions of the earth breaker 70 at the bottom of the adjusting tube 60 are different.

The top of the armrest pipe 1 is connected with an armrest frame 2, specifically, two armrest connecting blocks 6 symmetrical to the armrest pipe 1 are welded on the armrest frame 2, and the two armrest connecting blocks 6 are simultaneously and rotatably connected to the armrest pipe 1; each armrest connecting block 6 is provided with an arc-shaped adjusting hole 61, and the arc-shaped adjusting holes 61 and the armrest frame 2 are positioned on two sides of the rotation center of the armrest connecting block 6. A reinforcing plate 62 is welded on one of the armrest connecting blocks 6, a plurality of positioning grooves 63 are processed on the reinforcing plate 62, and the distances between the arc-shaped adjusting holes 61 and each positioning groove 63 and the rotation center of the armrest connecting block 6 are equal.

The handrail tube 1 is welded with a reinforcing column 11, the reinforcing column 11 is perpendicular to the handrail tube 1, the reinforcing column 11 is rotatably connected with a connecting rod 7 (clearance fit, the connecting rod 7 can axially move on the reinforcing column 11), and the connecting rod 7 penetrates through the arc-shaped adjusting holes 61 of the two handrail connecting blocks 6.

One end integrated into one piece of connecting rod 7 has the stopper, and connecting rod 7 other end threaded connection has the retaining member, and in this embodiment, the retaining member adopts the lock sleeve 8 that has the internal thread. The locking sleeve 8 is integrally provided with a handle. The locking piece and the limiting block can tightly prop the two armrest connecting blocks 6 on the reinforced column 11.

The positioning grooves 63 on the reinforcing plate 62 can be matched with the limit blocks in a concave-convex manner, and the cross section of each limit block in the embodiment is hexagonal, namely, the connecting rod 7 and the limit block in the embodiment can adopt bolts with hexagonal heads, so that the manufacturing cost and the purchasing cost of parts are reduced. In addition, the shapes of the stopper and the positioning groove 63 are not limited to the hexagonal fit, and the cross section of the stopper may be one of elliptical, polygonal, heart-shaped or star-shaped.

The specific implementation process is as follows:

The ditcher of this embodiment can carry out ditching hilling as well as rotary tillage weeding after changing the corresponding cutter 300, as shown in fig. 1, and belongs to a schematic diagram when ditching hilling is carried out by the ditcher. In this state, the supporting box 100 of the ditcher is in an inclined state, that is, in a state in which the center of gravity of the ditcher itself is lowered, so that ditching and hilling operations can be conveniently performed.

Under the operation of ditching and hilling, because the supporting box 100 inclines, the stability of ditching machine in the ditching and hilling process can be greatly improved, and the inclined supporting box 100 enables the acting force given by the weight (the transmission assembly and the power assembly 200, and the part with the largest mass of the whole ditching machine) on the supporting box 100 to be divided into a horizontal component force and a vertical component force, the direction of the vertical component force is downward so as to ensure the stability of the ditching machine, and the horizontal component force is towards the advancing end of the ditching machine and is equivalent to the horizontal component force to give an advancing force to the ditching machine, so that the power of the ditching machine is improved, and the difficulty of ditching and hilling is relatively reduced.

In addition, in the ditching and hilling process, because the fixed baffle 801 of the mud guard 80 is a concave curved plate, the concave surface in the curved plate is turned outwards, and the part with large turning-out amplitude is positioned at the front end of the ditching machine, and when the ditching and hilling are carried out, the ditching machine is inclined, the mud guard 80 is inclined along with the supporting box 100, so that the resistance of the soil thrown up by the ditching and hilling on the front side of the ditching machine is smaller, the thrown soil falls towards the side of the front end of the ditching machine, the soil can be less backfilled into the well-opened groove, the amount of the soil splashed to the front end of the ditching machine can be reduced, the soil thickness of the position to be ditched and hilled is increased, and the probability of not affecting the ditching and hilling work but also being capable of greatly reducing the soil is ensured.

In addition, in the inclined state of the supporting box 100, the stress of the handrail tube 1 is also increased, the soil breaker 70 can be automatically inserted into soil under the dead weight of the ditcher, the problem of tillage omission is solved, meanwhile, the condition that the soil breaker 70 is forced to enter soil by manually pressing the handrail frame 2 is avoided, the labor intensity of a person is reduced, and the easy operability of the handrail frame 2 in the ditching and ridging process is improved; meanwhile, the earth breaker 70 also forms a supporting function on the inclined supporting box 100, so that the supporting strength of the mounting plate 3 on the supporting box 100 is improved, and the stability of the ditcher in the ditching and ridging process is facilitated.

The presence of the shaping plate 50 can enable even a small amount of backfill soil in the groove to be scraped to the end of the groove by the shaping plate 50, so that the backfill condition of the soil in the groove is further reduced.

In order to make the ditching and ridging adapt to different soil property requirements, the height of each of the resistance rod 5, the shaper and the breaker 70 can be adjusted, and the adjustment mode is simple and convenient.

In addition, when the ditcher is required to be changed from a ditching and ridging state to a rotary tillage and weeding state, an operator pushes the handrail frame 2 or the handrail pipe 1 from bottom to top by one hand, so that the inclined handrail pipe 1 rotates in the vertical direction, namely, the handrail pipe 1 rotates anticlockwise, and the other hand pulls the inserted link 9, so that the protruding part 91 on the inserted link 9 is separated from the first adjusting hole 41 and the mounting hole (at the moment, the spring 10 is compressed), and the polished rod section of the inserted link 9 can slide on the arc-shaped through groove; in the anticlockwise rotation process of the handrail tube 1, as the mounting plate 3 rotates, the rotation center of the connecting plate 4 rises, so that the connecting plate 4 rotates clockwise under the gravity of the connecting resistance rod 5 and the supporting wheel 30, the first adjusting hole 41 and the arc through groove also rotate clockwise, the arc through groove moves relative to the polish rod section of the inserted rod 9 until the inserted rod 9 falls onto the first adjusting hole 41 on the right side, at the moment, the inserted rod 9 is loosened, the spring 10 drives the inserted rod 9 to move towards one side of the direction of the spring 10 under the action of elasticity, and then the protruding part 91 fixed on the inserted rod 9 is automatically inserted into the first adjusting hole 41 and the mounting hole, so that the adjustment and the switching are completed; after this switching is completed, the angle between the handrail tube 1 and the body of the resistance bar 5 is changed, resulting in the situation shown in fig. 2.

The change in the embodiment can change the gravity center of the ditcher, so that the gravity center can be conveniently adjusted when the ditcher is used for ditching and ridging so as to enhance the working stability of the ditcher; when the center of gravity is required to be increased during rotary tillage weeding, the center of gravity can be increased and the supporting wheel 30 is matched for use, so that the ditcher has good flexibility, convenience is brought to the operability of agricultural equipment under ditching and ridging or rotary tillage weeding, and the labor intensity is reduced; and the operation mode of switching the height of the gravity center is simple and convenient. In addition, after the gravity center of the ditcher is adjusted upwards, the gravity of the ditcher is applied to the cutter 300 more, so that the pressure born by the cutter 300 is larger during rotary tillage weeding, the soil entering effect is better, and rotary tillage weeding is more facilitated in hard soil.

When the height of the armrest frame 2 needs to be adjusted, an operator holds the armrest frame 2 by one hand and screws the locking sleeve 8 by one hand, so that the locking sleeve 8 and the connecting rod 7 are unscrewed, after the locking sleeve 8 is unscrewed from the connecting rod 7 by one depth of the positioning groove 63, a limiting block on the connecting rod 7 can be separated from the positioning groove 63 by pushing the locking sleeve 8, then the armrest connecting block 6 and the armrest frame 2 are rotated by holding the hand of the armrest frame 2, and after the armrest frame 2 is rotated to a proper height, the locking sleeve 8 is pulled again, so that the connecting rod 7 moves along the axial opposite direction, and the limiting block on the connecting rod 7 falls into the corresponding positioning groove 63 to form the limiting block; finally, the locking sleeve 8 is screwed and fastened again, so that the two handrail connecting blocks 6 are abutted against the reinforcing columns 11 of the handrail tube 1 by the limiting blocks and the locking sleeve 8. As can be seen from the above description, the height adjustment of the armrest frame 2 can be completed quickly by only two hands respectively acting on the armrest frame 2 and the locking sleeve 8, which is simple, convenient and quick to operate.

The foregoing is merely exemplary of the present application, and specific technical solutions and/or features that are well known in the art have not been described in detail herein. It should be noted that, for those skilled in the art, several variations and modifications can be made without departing from the technical solution of the present application, and these should also be regarded as the protection scope of the present application, which does not affect the effect of the implementation of the present application and the practical applicability of the patent. The protection scope of the present application is subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.

Claims (8)

1. The utility model provides an adjustable ditching machine of focus, includes frame assembly, power assembly and drive assembly, and the frame assembly is including the supporting box that is used for installing power assembly and drive assembly, and power assembly is used for providing power for the drive assembly, and drive assembly is used for driving cutter or walking wheel and rotates, fixedly connected with fender, its characterized in that on the supporting box: the support box is fixedly connected with a mounting plate, the mounting plate is rotationally connected with a connecting plate, one end of the connecting plate, which is far away from the mounting plate, is fixedly provided with a resistance rod, and the mounting plate and the connecting plate are connected with a locking piece capable of locking the mounting plate and the connecting plate to rotate;

the locking piece comprises an inserting rod, a protruding part is fixed on the inserting rod, one of the mounting plate and the connecting plate is provided with a mounting hole, the other one of the mounting plate and the connecting plate is provided with a first adjusting hole, the number of the first adjusting holes is at least two, the distances between all the mounting holes and the rotating center of the connecting plate are equal, and the protruding part is in concave-convex fit with the first adjusting hole and the mounting hole;

The novel adjustable adjusting device is characterized in that an arc through groove is formed between the adjacent first adjusting holes, the arc through groove is communicated with the adjacent first adjusting holes, the center of the arc through groove is concentric with the rotation center of the connecting plate, a blocking shoulder is arranged on the protruding portion, an elastic piece is sleeved on the inserting rod, a baffle is arranged at one end, away from the protruding portion, of the inserting rod, the elastic piece is located between the baffle and the connecting plate, the blocking shoulder and the elastic piece are located on two sides of the connecting plate, and the protruding portion is inserted on the first adjusting holes and the mounting holes in a matched mode through the blocking shoulder and the elastic piece.

2. The gravity center adjustable ditcher as claimed in claim 1, wherein: the resistance bar is detachably connected with supporting wheels which are symmetrical with respect to the resistance bar, and the height of the supporting wheels can be adjusted.

3. The gravity center adjustable ditcher as claimed in claim 1, wherein: two connecting parts are arranged on the mounting plate and are fixedly connected with the middle part and the lower part of the supporting box respectively, and two connecting lines between the two connecting parts and the locking piece form a triangle.

4. The center of gravity adjustable ditcher of claim 3, wherein: the number of the mounting plates is two, the two mounting plates are symmetrically arranged relative to the connecting plate, and the retaining shoulder and the elastic piece are respectively abutted against the two mounting plates; an armrest pipe is fixedly arranged between the two mounting plates, the mounting plates enclose the armrest pipe, a soil breaker is arranged at the bottom of the armrest pipe, and the top of the armrest pipe is connected with an armrest frame.

5. The center of gravity adjustable ditcher of claim 4, wherein: the handrail pipe is axially and slidably connected with a connecting pipe, a shaping plate is fixed on the connecting pipe and positioned below the mounting plate, and the shaping plate can be attached to the side wall of the trench after the ditching and ridging of the ditching machine.

6. The center of gravity adjustable ditcher of claim 4, wherein: the handrail frame is provided with a handrail connecting block which is rotationally connected to a handrail pipe, and the handrail pipe is in clearance fit with a connecting rod capable of sliding and rotating; be equipped with the arc regulation hole on the handrail connecting block, the connecting rod can be located the arc regulation downthehole, and the interval between connecting rod and arc regulation hole and the rotation center of handrail connecting block equals, connecting rod one end fixedly connected with stopper, connecting rod other end threaded connection have the retaining member, be equipped with on the handrail connecting block can with the unsmooth complex of stopper a plurality of constant head tanks, retaining member and stopper can support the handrail connecting block tightly on the handrail pipe.

7. The gravity center adjustable ditcher as claimed in claim 1, wherein: the fender includes fixed baffle and two adjustable stops, and fixed baffle is fixed on the supporting box, and adjustable stop is located the fixed baffle both sides and homoenergetic relatively fixed baffle rotates, and fixed baffle includes left dog and right dog that fixed connection and symmetry set up, and left dog and right dog all are curved plate, and curved plate's interior concave surface is towards ground, and curved plate extends to the cutter rear from the cutter the place ahead, and curved plate's interior concave surface outwards turns up, and curved plate's interior concave surface is greater than the valgus range of ditcher travel rear end at ditcher travel front end's valgus range.

8. The adjustable center of gravity ditcher of claim 7, wherein: the angle adjusting piece comprises a friction shaft and a clamping plate, wherein one of the friction shaft and the clamping plate is fixed on the movable baffle, the other one of the friction shaft and the clamping plate is fixed on the fixed baffle, the clamping plate comprises two opposite clamping pieces, half containing cavities are formed on opposite faces of the two clamping pieces, and the two half containing cavities of the clamping plate clamp the friction shaft.