CN210695063U

CN210695063U - Folding telescopic arm steering assembly

Info

Publication number: CN210695063U
Application number: CN201920995550.XU
Authority: CN
Inventors: 毕浩锋; 俞辉; 余文浩; 张文群; 季增连
Original assignee: Shandong Huiqiang Vehicle Manufacturing Co ltd; Shandong Kaileide Industrial Design Co ltd; Guangzhou Jiaotou Greening Construction Co ltd
Current assignee: Shandong Huiqiang Vehicle Manufacturing Co ltd; Shandong Kaileide Industrial Design Co ltd; Guangzhou Jiaotou Greening Construction Co ltd
Priority date: 2019-06-28
Filing date: 2019-06-28
Publication date: 2020-06-09
Anticipated expiration: 2029-06-28

Abstract

A folding telescopic arm steering assembly relates to the technical field of cutters for hedge trimmers, and comprises a supporting seat and a steering column arranged on the supporting seat; the lower end of the steering column is provided with a driving seat for driving the steering column to swing, the driving seat provides power through a driving cylinder, and the steering column is also provided with a buffer component for absorbing impact vibration. The utility model solves the problem that the steering wheel is broken when the steering component in the traditional technology is limited by the view limitation of the hedgerow during steering; and when the telescopic arm is turned to the limit position, the oil leakage of a cylinder pipeline on the telescopic arm and the loosening of a cutter on the machine head are caused by the acting force of the mass of the telescopic arm and the machine head.

Description

Folding telescopic arm steering assembly

Technical Field

The utility model relates to a hedge trimmer cutter technical field, concretely relates to folding flexible arm steering assembly.

Background

The median greening of the expressway mainly aims at beautifying the traffic environment and preventing vehicles from dazzling at night, and the driving safety is not facilitated by too high and too low greening growth. The median greening and pruning of the expressway is an important content of expressway greening and maintenance, and the improvement of the working efficiency of the median greening and pruning is important for reducing the enterprise cost and improving the safety factor.

The regular pruning of the greening is an important content of daily maintenance, and the greening pruning method plays a key role in the work efficiency and safety. Traditional afforestation is pruned, is pruned by the handheld hedge trimmer of operation personnel manual work, or utilizes machinery and the lower simple and easy repacking equipment of degree of automation to prune, assists the manual work to collect, and personnel's intensity is higher when pruning the operation, so field operation factor of safety is lower.

Therefore, vehicle-mounted trimmers are generally adopted in the market, the mobile platform is a light truck, and the diesel engine unit is used as power of the trimming device and can be used for trimming hedges.

In the road greening work, the hedges on the two sides of the road are usually trimmed by using a multifunctional trimming robot, and the hedges are required to be trimmed to different shapes and sizes to increase the aesthetic feeling of the road greening and solve the safety problem of road reverse trimming, so that the requirement of diversification of the hedges cannot be met by directly mounting a trimming cutter on the multifunctional trimming robot, the trimming effect is poor, the efficiency is low, and the difficulty is high.

The chinese national intellectual property office discloses a utility model patent that patent number is ZL2018211298554, this patent includes the slewing arm and removes the frame, the slewing arm lower extreme is equipped with the slewing arm base, the mount that the slewing arm base was equipped with through removing frame front side lower part is fixed on removing the frame, it is equipped with fixed cover to remove frame front side upper portion, the slewing arm rotationally is located fixed cover, it has the hydro-cylinder fixed plate to remove frame one side upper portion rigid coupling, and opposite side upper portion rigid coupling has the limiting plate, be equipped with horizontal hydraulic cylinder on the hydro-cylinder fixed plate, hydraulic cylinder's piston rod even has the rack fixing base, install slider and rack on the rack fixing base, it is equipped with the horizontally slide rail to remove frame upper portion, slider and slide rail looks adaptation, the slewing arm middle. The pruning shears are installed the utility model discloses on, the utility model discloses drive pruning shears rotary motion to satisfy the pruning of hedgerow different shapes and solve the safety problem that the highway retrograde motion brought.

However, the device gradually exposes the defects of the device in the actual production and use process:

first, the device drives the rack through the slider and removes, and then utilize the rack to drive the rolling disc and rotate, thereby realize driving the swinging boom swing, but it is well known, when hedge trimmer aircraft nose prunes central median or domatic hedge again, owing to receive the hedge to cause driver's vision blind area, the phenomenon that the aircraft nose collided central median or road surface often appears, wherein during the rigid collision, just often appear forming the phenomenon that collapses the tooth with the steering wheel, make the going on of work influenced, and when changing the steering wheel, need dismantle flexible arm and aircraft nose, labour's output has been increased, make the device be applicable to the region use that the field of vision is spacious.

Secondly, wherein when the device swung the extreme position, the extreme position of both sides was equipped with the dog for the limit swing extreme position, but as is known, flexible arm and aircraft nose account for very big quality, and all bear on the steering column, make when the steering column swung the extreme position, carry out the counterbalance collision with the dog, make the effort through flexible arm and aircraft nose easily distort the central component assembly of steering column, and this effort easily conducts to flexible arm, easily cause the hydro-cylinder of flexible arm of control and vibrate the distortion, the phenomenon of oil leak appears, and easily not hard up the cutter on the aircraft nose, cause the phenomenon of fly cutter, form the potential safety hazard.

From the above, it is obvious that the prior art has inconvenience and disadvantages in practical use, so that improvement is needed.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model provides a steering assembly with a folding telescopic arm, which is used for solving the problem that the steering wheel is broken teeth due to the vision limitation of hedgerow when the steering assembly in the traditional technology is steered; and when the telescopic arm is turned to the limit position, the oil leakage of a cylinder pipeline on the telescopic arm and the loosening of a cutter on the machine head are caused by the acting force of the mass of the telescopic arm and the machine head.

In order to achieve the above object, the utility model provides a following technical scheme:

a steering assembly of a folding telescopic arm comprises a supporting seat and a steering column arranged on the supporting seat; the lower tip of steering column installs its wobbling driving seat of drive, just the driving seat provides power through the actuating cylinder, still install the buffering part that is used for absorbing the striking vibration on the steering column.

As an improved scheme, the buffering component comprises a T-shaped plate fixedly connected to the steering column and a middle limit column inserted in the supporting seat, and when the steering column rotates to two limit positions, two ends of the T-shaped plate, which are located on the short plate, are correspondingly abutted against the middle limit column.

As an improved scheme, the two sides of the middle limit column are respectively provided with a side hole, one side hole is internally inserted with a side limit column, the side limit columns are alternately inserted into the two side holes according to different limit positions of the steering column and are used for matching with the middle limit column to limit the swing angle of the steering column at the limit position.

As an improved scheme, the T-shaped plate is also detachably provided with limit blocks which are abutted against the middle limit column and the side limit columns respectively.

As an improved scheme, the limiting block is a T-shaped nylon block, a T-shaped groove is formed in the T-shaped plate, and the T-shaped nylon block is installed in the T-shaped groove through screws.

As an improved scheme, the T-shaped plate is provided with a hole body and fixedly connected and sleeved on the steering column through the hole body.

As an improved scheme, a rotating hole is vertically formed in the supporting seat, and the steering column is inserted in the rotating hole.

As an improved scheme, the driving seat comprises a disc body and a driving plate, the disc body is coaxially arranged at the lower end part of the steering column, one end of the driving plate is fixedly connected to the outer wall of the disc body, and the other end of the driving plate is hinged to a telescopic rod of the driving cylinder.

As an improved scheme, an end part of the driving plate is fixedly connected with a hinge post, and the hinge post is inserted into a ring hole at the end part of a telescopic rod of the driving cylinder.

As an improved scheme, the upper surface of the disc body is coaxially provided with a groove, the lower end part of the steering column is further provided with a plug-in column extending into the groove, and a radial positioning component is further arranged between the plug-in column and the groove.

As an improved scheme, the radial positioning component comprises two convex rings fixedly connected in the insertion column and the groove respectively, convex claws are arranged on opposite end walls of the two convex rings in a surrounding manner, a clamping groove is formed by an area between the two convex claws, and the convex claws on the opposite convex rings are clamped in the clamping groove.

As an improved scheme, a through hole is coaxially formed in the groove, a bolt is mounted on the through hole, and the tail end of the bolt is in threaded connection with the insertion column.

As an improved scheme, a hinge seat is further fixedly connected to the supporting seat, and a cylinder body of the driving cylinder is hinged to the hinge seat.

Compared with the prior art, the beneficial effects of the utility model are that:

the blind zone-free limitation is realized, the driving is realized by using the driving cylinder, the acting force generated by the collision of the blind zones is buffered by using the buffer force of the driving cylinder, and the phenomenon of tooth breakage in the traditional technology caused by rigid collision is overcome; the output of labor force is reduced; the method is used in a larger scene; when the steering column swings to the limit position, the central part of the steering column is prevented from being twisted due to the mass of the telescopic arm and the head by the buffer absorption effect of rigid collision impact force, and the phenomena of oil leakage caused by vibration of the oil cylinder and loosening of a cutter on the head can be effectively prevented; the stable operation of the trimming device is ensured, and the output of labor force is reduced; the design is reasonable, and the matching among structures is precise; the operation is convenient and fast; the follow-up part is simplified, and the fault rate in the working process is reduced; the stability in the working process is improved; the parts are few, the working procedure is simple and convenient, and the failure rate is low; simple structure and long service life.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the hinge base of the present invention;

FIG. 3 is a schematic structural view of a steering column of the present invention;

FIG. 4 is a schematic structural view of the T-shaped plate of the present invention in a left extreme position;

FIG. 5 is a schematic structural view of the swing range of the T-shaped plate of the present invention at the left extreme position;

FIG. 6 is a schematic structural view of the protruding claw of the present invention;

fig. 7 is a schematic structural view of the hinge post of the present invention;

in the figure: 1-a support seat; 2-rotating the hole; 3-middle limit column; 4-side limiting column; 5-side holes; 6-a drive plate; 7-a tray body; 8-driving a cylinder; 9-a hinged seat; 10-a steering column; 11-T shaped plate; 12-T shaped nylon block; 13-raised claws; 14-clamping the groove; 15-cartridge column; 16-hinged columns.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

As shown in fig. 1 to 7, the foldable telescopic boom steering assembly includes a support base 1 and a steering column 10 mounted on the support base 1; the lower end of the steering column 10 is provided with a driving seat for driving the steering column to swing, the driving seat is powered by the driving cylinder 8, and the steering column 10 is also provided with a buffer component for absorbing impact vibration.

The buffering component comprises a T-shaped plate 11 fixedly connected to the steering column 10 and a middle limiting column 3 inserted on the supporting seat 1, and when the steering column 10 rotates to the two-pole limiting position, two ends of the T-shaped plate 11, which are located on the short plate, are correspondingly abutted against the middle limiting column 3.

The two sides of the middle limiting column 3 are respectively provided with a side hole 5, one side hole 5 is internally inserted with a side limiting column 4, the side limiting columns 4 are alternately inserted into the two side holes 5 according to different limit positions of the steering column 10, and the middle limiting column 3 is used for matching with the swing angle of the steering column 10 when the steering column 10 is located at the limit position.

The middle limiting column 3 is used for limiting anticlockwise rotation, and the excessive rotation can collide with a cab and the like; the side restraining posts 4 limit the range of operating angles of the device.

When the right side of the device works, the side limiting column 4 is assembled in the other side hole 5, and when the device changes the working position, the middle limiting column 3 and the side limiting column 4 are firstly taken down, and after the device is in place, the middle limiting column 3 and the side limiting column 4 are inserted into the corresponding slot holes.

The T-shaped plate 11 is also detachably provided with a limiting block which is propped against the middle limiting column 3 and the side limiting column 4.

The limiting block is a T-shaped nylon block 12, a T-shaped groove is formed in the T-shaped plate 11, and the T-shaped nylon block 12 is installed in the T-shaped groove through screws.

The T-shaped plate 11 is provided with a hole body and fixedly sleeved on the steering column 10 through the hole body.

The supporting seat 1 is vertically provided with a rotating hole 2, and the steering column 10 is inserted in the rotating hole 2.

The driving seat comprises a disc body 7 and a driving plate 6, the disc body 7 is coaxially arranged at the lower end part of the steering column 10, one end of the driving plate 6 is fixedly connected to the outer wall of the disc body 7, and the other end of the driving plate is hinged to the telescopic rod of the driving cylinder 8.

The end of the driving plate 6 is fixedly connected with an articulated column 16, and the articulated column 16 is inserted into a ring hole at the end of the telescopic rod of the driving cylinder 8.

The upper surface of the disk body 7 is coaxially provided with a groove, the lower end part of the steering column 10 is also provided with an insertion column 15 extending into the groove, and a radial positioning part is arranged between the insertion column 15 and the groove.

The radial positioning component comprises two convex rings which are respectively fixedly connected in the inserting column 15 and the groove, convex claws 13 are arranged on opposite end walls of the two convex rings in a surrounding mode, a clamping groove 14 is formed through the area between the two convex claws 13, and the convex claws 13 on the opposite convex rings are clamped in the clamping groove 14.

A through hole is coaxially formed in the groove, a bolt is installed on the through hole, and the tail end of the bolt is in threaded connection with the insertion column 15.

The supporting seat 1 is further fixedly connected with a hinge seat 9, and a cylinder body of the driving cylinder 8 is hinged to the hinge seat 9.

The supporting seat 1 is further provided with a component for mounting the supporting seat 1 on the trimming device, and the component is not innovative in the scheme, so that the detail description is omitted.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims

1. The utility model provides a folding flexible arm steering assembly which characterized in that: comprises a supporting seat (1) and a steering column (10) arranged on the supporting seat (1); the lower end of the steering column (10) is provided with a driving seat for driving the steering column to swing, the driving seat provides power through a driving cylinder (8), and the steering column (10) is further provided with a buffering component for absorbing impact vibration.

2. The folding telescopic arm steering assembly of claim 1, wherein: the buffer component comprises a T-shaped plate (11) fixedly connected to the steering column (10) and a middle limiting column (3) inserted into the supporting seat (1), and when the steering column (10) rotates to two limit positions, two ends of the T-shaped plate (11) located on a short plate correspondingly abut against the middle limiting column (3).

3. A folding telescopic arm steering assembly, according to claim 2, wherein: side openings (5) have still been seted up respectively to the both sides of well spacing post (3), and side spacing post (4) are equipped with in one of them side opening (5) interpolation, side spacing post (4) according to the extreme position cartridge in turn of steering column (10) difference is in two in side opening (5) to be used for cooperating spacing post (3) restriction swing angle when steering column (10) are in extreme position.

4. A folding telescopic arm steering assembly, according to claim 3, wherein: and the T-shaped plate (11) is also respectively detachably provided with a limiting block which is abutted against the middle limiting column (3) and the side limiting column (4).

5. The folding telescopic arm steering assembly of claim 4, wherein: the limiting block is a T-shaped nylon block (12), a T-shaped groove is formed in the T-shaped plate (11), and the T-shaped nylon block (12) is installed in the T-shaped groove through screws.

6. A folding telescopic arm steering assembly, according to claim 2, wherein: the T-shaped plate (11) is provided with a hole body, and is fixedly connected with and sleeved on the steering column (10) through the hole body.

7. The folding telescopic arm steering assembly of claim 1, wherein: the driving seat comprises a disc body (7) and a driving plate (6), the disc body (7) is coaxially installed at the lower end part of the steering column (10), one end of the driving plate (6) is fixedly connected to the outer wall of the disc body (7), and the other end of the driving plate is hinged to a telescopic rod of the driving cylinder (8).

8. The folding telescopic arm steering assembly of claim 7, wherein: the end part of the driving plate (6) is fixedly connected with a hinged column (16), and the hinged column (16) is inserted into a ring hole at the end part of the telescopic rod of the driving cylinder (8).

9. The folding telescopic arm steering assembly of claim 7, wherein: the upper surface of the tray body (7) is coaxially provided with a groove, the lower end part of the steering column (10) is also provided with a plug-in column (15) extending into the groove, and a radial positioning part is also arranged between the plug-in column (15) and the groove.

10. The folding telescopic arm steering assembly of claim 9, wherein: the radial positioning component comprises two convex rings fixedly connected to the insertion column (15) and the groove respectively, convex claws (13) are arranged on opposite end walls of the two convex rings in a surrounding mode, a clamping groove (14) is formed in an area between the two convex claws (13), and the opposite convex claws (13) on the convex rings are clamped in the clamping groove (14).