CN210808350U

CN210808350U - Hedge trimming cutter mounting assembly

Info

Publication number: CN210808350U
Application number: CN201921015954.4U
Authority: CN
Inventors: 甄东翰; 俞辉; 周建财; 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: 2020-06-23
Anticipated expiration: 2029-06-28

Abstract

The utility model provides a hedge trimmer cutter installation component, relates to hedge trimmer cutter mounting structure technical field, including the main shaft, the cover is equipped with fixed sleeve pipe on the main shaft to through the main shaft with install radial positioning part and axial positioning board part between the fixed sleeve pipe. The utility model solves the problem that the trimming cutter in the traditional technology has large axial and radial play, which increases the abrasion of the main shaft and the components; and when the blade is broken by tension, the whole set of components is required to be disassembled and assembled, and the time is greatly occupied.

Description

Hedge trimming cutter mounting assembly

Technical Field

The utility model relates to a cutter mounting structure technical field for the hedge trimmer, concretely relates to hedge trimmer cutter installation component.

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, the vehicle-mounted pruning machine is generally adopted in the market, the mobile platform is a light truck, and the diesel engine unit is used as the power of the pruning device and can be used for pruning the hedgerow

The chinese national intellectual property office discloses a utility model patent that patent number is ZL2018211298554, this patent includes the transmission case, be equipped with hydraulic motor including transmission case top one end, transmission case bottom is equipped with the fixed plate, the fixed plate middle part has set firmly the driving shaft bearing frame, the driving shaft bearing frame rotates and has the driving shaft, the driving shaft top links to each other with hydraulic motor's output, fixed plate one end is equipped with the bar hole, the bar downthehole slip is equipped with the driven shaft bearing frame, driven shaft bearing frame internal rotation has the driven shaft, the driven shaft top passes through belt drive mechanism and links to each other with the driving shaft, driven shaft bearing frame one side is equipped with the tensioning bolt, driving. The utility model discloses a driving shaft drives the driven shaft and rotates to realize that two trimming blades prune the hedgerow simultaneously, the tensioning bolt has improved belt drive mechanism's transmission efficiency, and terminal surface separation and reunion tooth has reduced the regulation degree of difficulty of arm moreover, has improved the pruning efficiency of hedgerow, has reduced the pruning cost.

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

first, the blade that the device adopted is half piece formula structure, and this just leads to the device to have certain eccentric force's the condition in the drive blade rotation process, and the time is up for the cutter appears radially and axial drunkenness at the rotation in-process, has increaseed the wearing and tearing of cutter, has reduced the cycle of the change of cutter, has improved the output of cost.

Secondly, the hedge trimming cutter often suffers from hard solids in the hedge trimming process, so that the local stress of the blade is uneven, the blade is stretched and broken, and the device is required to be stopped for maintenance, but the whole set of rotating assembly needs to be disassembled in the blade replacing process, so that the assembling and disassembling steps are complex, and the large working time is occupied.

Thirdly, due to the instability of the tool in the rotation process, the local wear of the rotating shaft is easy to be serious, which results in the need of replacing the rotating shaft, but the production cost of the rotating shaft is high, which increases the production.

Fourthly, although the hedge is trimmed by the trimming blade, the blade adopted by the device is of a half-sheet structure, so that the device has certain eccentric force in the process of driving the blade to rotate, the whole device vibrates, and the loosening phenomenon is easy to occur among components, the trimming blade is easy to fly out, and potential safety hazards are caused to human bodies and peripheral vehicles.

Fifth, the device adopts a half-chip type, so that the rotating speed of the device needs to be advanced to ensure the cutting of the hedgerow, the contact frequency of the blade and the hedgerow in unit time is increased, the output power of a power mechanism for driving the cutter to rotate is certainly increased, the service life is prolonged, and the energy consumption is increased.

Sixth, after the hedgerow is cut by the half-sheet type blade, because the blade and the hedgerow are cut at a time, when the broken branches are collected by a worker, the broken branches also need to be broken and cut off, so that the transportation and the processing of subsequent bagging are facilitated, but the mode also improves the output of labor force undoubtedly.

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 hedge pruning cutter mounting component, which is used for solving the problem that the pruning cutter in the traditional technology has large axial and radial play, thus increasing the abrasion of a main shaft and the component; and when the blade is broken by tension, the whole set of components is required to be disassembled and assembled, and the time is greatly occupied.

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

a hedge trimming cutter mounting assembly comprises a spindle, wherein a fixing sleeve is sleeved on the spindle, and a radial positioning component and an axial positioning component are mounted between the spindle and the fixing sleeve.

As an improved scheme, the radial positioning component comprises bearings respectively sleeved at two ends of the main shaft, outer rings of the two bearings abut against the inner wall of the sleeve, and inner rings of the bearings abut against the peripheral wall of the main shaft.

As an improved scheme, a stepped hole used for positioning the axial distance between the two bearings is formed in the inner wall of the fixed sleeve, and one end faces, opposite to each other, of outer rings of the two bearings are respectively abutted against the end faces of the stepped hole.

As an improved scheme, an annular groove is coaxially formed in the stepped hole, a check ring is installed in the annular groove, and one end face of the check ring abuts against the other end face of the outer ring of the bearing.

As an improved scheme, the axial positioning plate part comprises spacing sleeves respectively sleeved at two ends of the main shaft, the bearing is positioned between the two spacing sleeves, and opposite end faces of the two spacing sleeves respectively abut against end faces of the two bearing inner rings.

As an improved scheme, a mounting boss is coaxially and fixedly connected to the lower end part of the main shaft, and the other end face of the spacer sleeve positioned below abuts against the mounting boss.

As an improved scheme, the upper end part of the main shaft is further in threaded connection with a fixing nut, and the fixing nut abuts against the other end face of the spacing sleeve above the fixing nut.

As an improved scheme, a gasket is further arranged between the fixing nut and the end face of the spacer sleeve above the fixing nut.

As an improved scheme, the fixing sleeve is further sleeved and fixedly connected with a connecting flange, a protruding portion is further arranged on the outer peripheral wall of the fixing sleeve, and the upper end portion of the fixing sleeve is connected with the fixing protrusion.

As an improved scheme, the upper end part of the main shaft is also provided with a key groove, and a key is installed in the key groove in a transition fit mode.

As a modified proposal, the lower end part of the mounting boss is provided with a cutter component.

As an improved scheme, the cutter assembly comprises an upper cutter and a lower cutter, and the upper cutter and the lower cutter are vertically arranged in a top view state.

As an improved scheme, a mounting cylinder is arranged between the central position of the upper cutter and the central position of the lower cutter.

As an improved scheme, the upper end part of the mounting cylinder body is fixedly connected with a blocking plate, a plurality of corresponding pin holes are formed between the blocking plate and the mounting boss, and the upper cutter is arranged between the blocking plate and the mounting boss and is radially fixed through a pin shaft.

As an improved scheme, a threaded hole is further formed in the blocking plate, a fixing screw is arranged in the threaded hole, and the tail end of the fixing screw penetrates through the upper cutter and is connected to the mounting boss in a threaded mode.

As an improved scheme, a fixing groove is formed in the cylinder wall of the lower end part of the installation cylinder, the lower cutter is restrained in the fixing groove, a fixing cover plate is further installed at the lower end part of the installation cylinder through a screw, and the screw is in threaded connection with the cylinder wall of the installation cylinder.

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

the main shaft is positioned axially and radially by utilizing the matching between the bearing and the spacing sleeve and the main shaft and the fixed sleeve, so that the play of the main shaft in the rotating process is reduced, the abrasion of the assembly is reduced, the service life is prolonged, and the cost is reduced; the stability in the rotating process is ensured through the bearing, the abrasion of the main shaft is reduced, and along with the use, when a play gap occurs, only the bearing needs to be replaced, so that the production cost is greatly reduced; the cutter and the assembly are detachably mounted, when the cutter is stretched, the corresponding parts can be detached to realize maintenance and replacement, so that the assembly and disassembly steps are reduced, and the working time is shortened; the arc-shaped plate of the lower cutter rotates to form a rotating ascending air flow, the rotating ascending air flow can blow up the trimmed branches and leaves, and the arc-shaped plate has the function of throwing the branches and leaves upwards; wherein the broken branches move upwards and can be matched with a collecting device to realize collection; the cut broken branches are cut again with a cutter above the cut broken branches, so that the thinned broken branches are conveniently and manually bagged; the rotation along the center of the cutter is realized, and the stability during the rotation is ensured; the two cutters are provided with 4 cutting edges, so that the cutting efficiency of the two cutters in unit time is 4 times that of a half-sheet cutter in the prior art; the high hedgerow cutting times are realized while the low-speed rotation is realized, and the energy consumption is reduced; and reduces the wear of the cutter; and four blades are arranged along the center in a rotating way, so that the rotating stability is further improved; the rotating tracks of the two cutters are the same, so that the coaxiality of the two cutters is ensured; the phenomena of loosening of parts and flying of blades are prevented, and the safety of workers and vehicles is guaranteed; 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 diagram of the three-dimensional state of the present invention;

fig. 3 is a schematic structural view of the present invention in a bottom view;

in the figure: 1-a main shaft; 2-fixing the sleeve; 3-a bearing; 4-a retainer ring; 5-spacer sleeve; 6-fixing the nut; 7-a gasket; 8-a connecting flange; 9-upper cutter; 10, mounting a cylinder; 11-lower cutter; 12-a pin shaft; 13-a set screw; 14-cover plate.

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 3, the hedge trimmer cutter mounting assembly includes a main shaft 1, a fixing sleeve 2 is sleeved on the main shaft 1, and a radial positioning member and an axial positioning plate member are mounted between the main shaft 1 and the fixing sleeve 2.

The radial positioning component comprises bearings 3 respectively sleeved at two ends of the main shaft 1, outer rings of the two bearings 3 are abutted against the inner wall of the sleeve, and inner rings of the bearings 3 are abutted against the peripheral wall of the main shaft 1.

The inner wall of the fixed sleeve 2 is provided with a step hole for positioning the axial distance between the two bearings 3, and the outer rings of the two bearings 3 are positioned at opposite end faces and are respectively abutted against the end faces on the step hole.

An annular groove is coaxially formed in the stepped hole, a retainer ring 4 is installed in the annular groove, one end face of the retainer ring 4 abuts against the other end face of the outer ring of the bearing 3, and the retainer ring 4 is a hole retainer ring.

The axial positioning plate part comprises spacing sleeves 5 respectively sleeved at two ends of the main shaft 1, the bearings 3 are positioned between the two spacing sleeves 5, and opposite end faces of the two spacing sleeves 5 are respectively abutted against end faces of inner rings of the two bearings 3.

The lower end part of the main shaft 1 is coaxially and fixedly connected with a mounting boss, and the other end surface of the spacer sleeve 5 positioned below is abutted against the mounting boss.

The upper end of the main shaft 1 is further connected with a fixing nut 6 in a threaded manner, and the fixing nut 6 abuts against the other end face of the spacer 5 located above.

A gasket 7 is arranged between the fixing nut 6 and the end surface of the spacer sleeve 5 positioned above.

Still the suit rigid coupling has flange 8 on the fixed sleeving 2, still is equipped with the bellying on the periphery wall on the fixed sleeving 2, and the upper end of fixed sleeving 2 is connected with fixed arch.

The upper end of the main shaft 1 is also provided with a key groove, and a key is installed in the key groove in a transition fit mode.

The hydraulic motor is connected with the main shaft through a coupler, and the upper cutter and the lower cutter are driven to rotate by the hydraulic motor through the main shaft.

The lower end part of the mounting boss is provided with a cutter component.

The cutter assembly comprises an upper cutter 9 and a lower cutter 11, and the upper cutter 9 and the lower cutter 11 are vertically arranged in a top view state.

An installation cylinder 10 is installed between the central position of the upper cutter 9 and the central position of the lower cutter 11.

The upper end of the mounting cylinder 10 is fixedly connected with a blocking plate, a plurality of corresponding pin holes are formed between the blocking plate and the mounting boss, and the upper cutter 9 is arranged between the blocking plate and the mounting boss and is radially fixed through a pin shaft 12.

Wherein, the blocking plate is also provided with a threaded hole, a fixing screw 13 is arranged in the threaded hole, and the tail end of the fixing screw 13 passes through the upper cutter 9 and is connected on the mounting boss in a threaded manner.

The cylinder wall of the lower end part of the installation cylinder body 10 is provided with a fixing groove, the lower cutter 11 is restrained in the fixing groove, the lower end part of the installation cylinder body 10 is also provided with a fixing cover plate 14 through a screw, and the screw is in threaded connection with the cylinder wall of the installation cylinder body 10.

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. A hedge trimmer cutter mounting assembly characterized by: the novel spindle comprises a spindle (1), wherein a fixed sleeve (2) is sleeved on the spindle (1), and a radial positioning component and an axial positioning plate component are arranged between the spindle (1) and the fixed sleeve (2).

2. A hedge trimmer cutter mounting assembly according to claim 1 wherein: the radial positioning component comprises bearings (3) respectively sleeved at two ends of the main shaft (1), outer rings of the two bearings (3) are abutted against the inner wall of the sleeve, and inner rings of the bearings (3) are abutted against the peripheral wall of the main shaft (1).

3. A hedge trimmer cutter mounting assembly according to claim 2 wherein: the inner wall of the fixed sleeve (2) is provided with stepped holes for positioning the axial distance between the two bearings (3), and the end faces of the outer rings of the two bearings (3) which are opposite are respectively abutted against the end faces of the stepped holes.

4. A hedge trimmer cutter mounting assembly according to claim 3 wherein: an annular groove is coaxially formed in the stepped hole, a check ring (4) is installed in the annular groove, and one end face of the check ring (4) is abutted to the other end face of the outer ring of the bearing (3).

5. A hedge trimmer cutter mounting assembly according to claim 2 wherein: the axial positioning plate part comprises spacing sleeves (5) respectively sleeved at two ends of the main shaft (1), the bearings (3) are arranged between the two spacing sleeves (5), and opposite end faces of the two spacing sleeves (5) are respectively abutted against end faces of inner rings of the two bearings (3).

6. A hedge trimmer cutter mounting assembly according to claim 5 wherein: the lower end part of the main shaft (1) is coaxially and fixedly connected with a mounting boss, and the other end face of the spacing sleeve (5) below is abutted against the mounting boss.

7. A hedge trimmer cutter mounting assembly according to claim 5 wherein: the upper end of the main shaft (1) is further connected with a fixing nut (6) in a threaded mode, and the fixing nut (6) abuts against the other end face of the spacing sleeve (5) located above.

8. A hedge trimmer cutter mounting assembly according to claim 7 wherein: and a gasket (7) is also arranged between the fixing nut (6) and the end surface of the spacing sleeve (5) above the fixing nut.

9. A hedge trimmer cutter mounting assembly according to claim 1 wherein: still the suit rigid coupling has flange (8) on adapter sleeve (2), still be equipped with the bellying on the periphery wall on adapter sleeve (2), the upper end of adapter sleeve (2) and with fixed arch is connected.

10. A hedge trimmer cutter mounting assembly according to claim 1 wherein: the upper end of the main shaft (1) is further provided with a key groove, and a key is installed in the key groove in a transition fit mode.