阅读说明：本技术 一种草坪机割草高度调节装置 (Lawn mower height adjusting device that mows ) 是由 秦文文 束力 于 2020-08-05 设计创作，主要内容包括：本发明公开了一种草坪机割草高度调节装置,包括割台、割台挂接机构、割台调高组件一、割台调高组件二、限位机构一、限位机构二,割台通过割台挂接机构与草坪机的机架的下部连接,割台挂接机构与割台调高组件二连接,割台调高组件一、割台调高组件二、限位机构一、限位机构二分别与机架的上部连接,割台调高组件一、割台调高组件二分别与限位机构一的相对两侧连接,限位机构二在割台调高组件二与限位机构一连接处的侧方与限位机构一卡接。通过各机构及组件之间的配合,使操作者在工作操纵区域就能够对割台高度进行调整,简化了操作步骤,降低了劳动强度,提高了工作效率,增加了安全性,保证所割出的草坪的协调性,提高美观度。(The invention discloses a lawn mower mowing height adjusting device which comprises a header, a header hanging mechanism, a header height adjusting assembly I, a header height adjusting assembly II, a limiting mechanism I and a limiting mechanism II. Through the cooperation between each mechanism and the subassembly, make the operator just can adjust the header height in the work manipulation region, simplified the operating procedure, reduced intensity of labour, improved work efficiency, increased the security, guarantee the harmony of the lawn of cutting, improve pleasing to the eye degree.)

1. The utility model provides a lawn mower height adjusting device that mows which characterized in that: comprises a header (1), a header hanging mechanism (2), a header height-adjusting component I (3), a header height-adjusting component II (4), a limiting mechanism I (5) and a limiting mechanism II (6), the cutting table (1) is connected with the lower part of a frame (7) of the lawn mower through the cutting table hanging mechanism (2), the header hanging mechanism (2) is connected with the header height-adjusting component II (4), the header height adjusting component I (3), the header height adjusting component II (4), the limiting mechanism I (5) and the limiting mechanism II (6) are respectively connected with the upper part of the frame (7), the header height adjusting assembly I (3) and the header height adjusting assembly II (4) are respectively connected with two opposite sides of the limiting mechanism I (5), and the side of the joint of the header height-adjusting component II (4) and the limiting mechanism I (5) is clamped with the limiting mechanism I (5) by the limiting mechanism II (6).

2. The lawn mower mowing height adjusting device according to claim 1, wherein: the header hanging mechanism (2) comprises two header front hanging plates (21), two header rear hanging plates (22), a hanging ring (23) and a locking nut (24), wherein the two header front hanging plates (21) are symmetrically arranged at the front part of the upper surface of the header (1) at intervals along the horizontal direction, one end of each header front hanging plate (21) is connected with the rack (7), and the other end of each header front hanging plate is connected with the header (1); the two header rear hanging plates (22) are symmetrically arranged at the rear part of the upper surface of the header (1) at intervals along the horizontal direction, one end of each header rear hanging plate (22) is connected with the rack (7), and the other end of each header rear hanging plate is connected with the header (1); two rings (23) are respectively vertically arranged on two opposite sides of the header height-adjusting assembly II (4), the upper portion of each ring (23) is connected with the header height-adjusting assembly II (4) through one locking nut (24), the end portion of each ring (23) is connected with the rack (7), and the ring portion is connected with the header (1).

3. The lawn mower mowing height adjusting device according to claim 2, wherein: the two header front hanging plates (21) and the two header rear hanging plates (22) are respectively parallel to each other in pairs, and the lengths of a connecting line AB formed by the header front hanging plates (21) and a connecting point A of the rack (7) and a connecting point B of the header (1) are equal to the lengths of a connecting line CD formed by the header rear hanging plates (22) and a connecting point C of the rack (7) and a connecting point D of the header (1).

4. The lawn mower mowing height adjusting device according to claim 1, wherein: header heightening subassembly (3) is including pedal swing arm (31), pedal connecting rod (32), running-board (33), connecting plate (34), pedal swing arm (31) are vertical to be placed, pedal connecting rod (32) with running-board (33) are in the same side parallel interval of pedal swing arm (31) sets up and respectively with pedal swing arm (31) are connected, the other end of pedal connecting rod (32) with frame (7) are connected, the one end of connecting plate (34) with the relative another side of pedal swing arm (31) is connected, the other end of connecting plate (34) with stop gear (5) are connected.

5. The lawn mower mowing height adjusting device according to claim 1, wherein: header is increaseed subassembly two (4) including increaseing rocking arm (41), increaseing connecting rod (42), connecting rocker arm (43), increaseing rocking arm (41) and being equipped with two, respectively with the both ends of increaseing connecting rod (42) are connected, two increaseing rocking arm (41) respectively with frame (7) are articulated, the one end of connecting rocker arm (43) with stop gear is one (5) are connected, the other end and corresponding the end connection of increaseing connecting rod (42), two increaseing rocking arm (41) respectively with header hooking mechanism (2) are connected.

6. The lawn mower mowing height adjusting device according to claim 1, wherein: the first limiting mechanism (5) comprises a height-adjusting limiting plate (51), a sliding block (52), a limiting bolt (53) and a limiting washer (54), the height-adjusting limiting plate (51) is vertically arranged, one end of the header height adjusting component is connected with the header height adjusting component I (3), the other end of the header height adjusting component I is connected with the header height adjusting component II (4), a long groove (511) is arranged on the height-adjusting limit plate (51) along the horizontal direction, one side of the sliding block (52) penetrates through the long groove (511) and is limited in the long groove (511) through two limit bolts (53) arranged at intervals, a limit gasket (54) is respectively arranged between the connection surface of each limit bolt (53) and the sliding block (52), the slide block (52) is connected with the frame (7), a notch (512) is arranged on one side of the height-adjusting limit plate (51), and the second limiting mechanism (6) is clamped with the height-adjusting limiting plate (51) at the notch (512).

7. The lawn mower mowing height adjusting device according to claim 1, wherein: the second limiting mechanism (6) comprises a knob (61), a rotating shaft (62), a connecting column (63), a rotating limiting plate (64), a knob fixing seat (65), a wave bead screw (66), a fixing bolt (67) and a rolling bearing (68), the rotating shaft (62) is vertically placed, the upper end of the rotating shaft is connected with the knob (61), the lower end of the rotating shaft is fixed with the connecting column (63) through the fixing bolt (67), the rotating limiting plate (64) is sleeved on the outer peripheral surface of the connecting column (63) and fixed, the connecting column (63) is arranged in the knob fixing seat (65) in a penetrating way and is connected with the knob fixing seat (65) through the rolling bearing (68), the wave bead screw (66) is installed on the knob fixing seat (65), a plurality of through holes (641) are formed in the rotating limiting plate (64), and the wave bead screw (66) is clamped in one of the through holes (641), the outer ring of the rotary limiting plate (64) is clamped with the first limiting mechanism (5), and the knob fixing seat (65) is connected with the rack (7).

8. The lawn mower mowing height adjusting device according to claim 7, wherein: the second limiting mechanism (6) further comprises an oil ring (69), and the oil ring (69) is mounted at the end part of the rotating bearing (68) at the connecting part of the connecting column (63) and the rotating bearing (68).

9. The lawn mower mowing height adjusting device according to claim 7, wherein: a plurality of through holes (641) are circumferentially distributed on the rotation-restricting plate (64).

10. The lawn mower mowing height adjusting device according to claim 7, wherein: the outer ring of the rotary limiting plate (64) is of a special-shaped structure, a plurality of inwards concave arc-shaped grooves (642) are distributed on the outer ring of the rotary limiting plate, and the limiting mechanism I (5) is clamped with the rotary limiting plate (64) at one arc-shaped groove (642).

Technical Field

The invention relates to the field of agricultural production equipment, in particular to a mowing height adjusting device of a lawn mower.

Background

At present, commercial-grade lawn mowers in the market mainly aim at units needing to trim and maintain large-area lawns such as lawn maintenance companies and garden bureaus, and because the mowing height requirements of different lawns during trimming are not consistent, the lawn mowers are required to be capable of adjusting the mowing height.

The existing commonly used mowing height adjusting mechanism is composed of a highest point locking part and a mowing height adjusting part. Before the mowing height is adjusted, the header needs to be adjusted to the highest point to the locking position, then the limiting pin is inserted into the limiting hole corresponding to the mowing height to be adjusted, then the locking of the header is removed, the header is put down, and the required mowing height is guaranteed through the limiting pin adjusted before. This kind of mode of increaseing needs the workman to adjust four hookup points are whole when debugging lawn mower height of mowing, and is very loaded down with trivial details, and labour consumes greatly, influences the efficiency of mowing.

Disclosure of Invention

The purpose of the invention is as follows: in view of the above problems, an object of the present invention is to provide a lawn mower mowing height adjusting device, which simplifies the debugging steps, improves mowing efficiency, and reduces labor consumption.

The technical scheme is as follows: the utility model provides a lawn mower height adjusting device that mows, includes header, header hooking mechanism, header height-adjusting subassembly one, header height-adjusting subassembly two, stop gear one, stop gear two, the header passes through the sub-unit connection of header hooking mechanism and lawn mower's frame, header hooking mechanism with header height-adjusting subassembly two is connected, header height-adjusting subassembly one the header height-adjusting subassembly two stop gear one the stop gear two respectively with the upper portion of frame is connected, header height-adjusting subassembly one the header height-adjusting subassembly two respectively with stop gear one's relative both sides are connected, stop gear two is in the header height-adjusting subassembly two with the side of stop gear one junction with stop gear one joint.

Furthermore, the header hanging mechanism comprises two header front hanging plates, two header rear hanging plates, a hanging ring and a locking nut, wherein the two header front hanging plates are symmetrically arranged at the front part of the upper surface of the header at intervals along the horizontal direction, one end of each header front hanging plate is connected with the rack, and the other end of each header front hanging plate is connected with the header; the two header rear hanging plates are symmetrically arranged at intervals in the horizontal direction at the rear part of the upper surface of the header, one end of each header rear hanging plate is connected with the rack, and the other end of each header rear hanging plate is connected with the header; the two lifting rings are vertically arranged on two opposite sides of the header height-adjusting assembly II respectively, the upper portion of each lifting ring is connected with the header height-adjusting assembly II through one locking nut, the end portion of each lifting ring is connected with the rack, and the ring portion of each lifting ring is connected with the header.

Furthermore, the two header front hanging plates and the two header rear hanging plates are respectively parallel to each other in pairs, and the length of a connecting line AB formed by the header front hanging plates and the connecting point A of the rack and the connecting point B of the header is equal to the length of a connecting line CD formed by the header rear hanging plates and the connecting point C of the rack and the connecting point D of the header.

Furthermore, header height-adjusting subassembly one includes pedal swing arm, pedal connecting rod, running-board, connecting plate, pedal swing arm is vertical places, pedal connecting rod with the running-board is in the same side of pedal swing arm parallel interval sets up and respectively with pedal swing arm is connected, the other end of pedal connecting rod with the frame is connected, the one end of connecting plate with the relative another side of pedal swing arm is connected, the other end of connecting plate with stop gear is connected.

Further, header heightening assembly two is including heightening the rocking arm, heightening the connecting rod, connecting the rocking arm, heightening the rocking arm and be equipped with two, respectively with heightening the both ends of connecting rod and connecting, two heightening the rocking arm respectively with the frame is articulated, connecting the rocking arm one end with stop gear is connected, the other end with correspond heightening the end connection of connecting rod, two heightening the rocking arm respectively with header hooking mechanism connects.

Further, stop gear one is including increaseing limiting plate, slider, spacing bolt, spacing packing ring, increaseing the vertical placing of limiting plate, its one end with header increasement subassembly one is connected, the other end with header increasement subassembly two is connected, increaseing the limiting plate and having seted up the elongated slot along the horizontal direction, slider one side is worn to locate in the elongated slot and through two interval settings spacing bolt is in spacing in the elongated slot, every spacing bolt with be equipped with respectively between the face of being connected of slider spacing packing ring, the slider with the frame is connected, it is equipped with the breach to increase limiting plate one side, stop gear two is in breach department with increaseing the limiting plate joint.

Further, stop gear two includes knob, pivot, spliced pole, rotatory limiting plate, knob fixing base, ripples pearl screw, fixing bolt, rolling bearing, the vertical placing of pivot, its upper end with the knob is connected, and the lower extreme passes through fixing bolt with the spliced pole is fixed, rotatory limiting plate cover is located on the outer peripheral face of spliced pole and fixed, the spliced pole is worn to locate in the knob fixing base and pass through rolling bearing with the knob fixing base is connected, ripples pearl screw install in on the knob fixing base, a plurality of through-holes have been seted up on the rotatory limiting plate, ripples pearl screw card is located one of them in the through-hole, the outer lane of rotatory limiting plate with a stop gear joint, the knob fixing base with the frame is connected.

Furthermore, the second limiting mechanism further comprises an oil ring, and the oil ring is mounted at the end part of the rotating bearing at the connecting part of the connecting column and the rotating bearing.

Furthermore, a plurality of through holes are distributed on the rotary limiting plate in a circumferential manner.

Furthermore, the outer ring of the rotary limiting plate is of a special-shaped structure, a plurality of inwards concave arc-shaped grooves are distributed on the outer ring of the rotary limiting plate, and the first limiting mechanism is clamped with the rotary limiting plate at one arc-shaped groove.

Has the advantages that: compared with the prior art, the invention has the advantages that: through the matching of the mechanisms and the components, an operator can adjust the height of the header in a working control area, so that the operation steps are simplified, the labor intensity is reduced, the working efficiency is improved, and the safety is improved; through using this device, when guaranteeing that the header is applicable to the operation of mowing of multiple high demand, can also guarantee the harmony on the lawn of cutting, improve pleasing to the eye degree.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a side view structural diagram of the present invention;

FIG. 3 is a top view of a second limiting mechanism;

FIG. 4 is a sectional view taken along line G-G of FIG. 3;

FIG. 5 is a schematic structural diagram of a first limiting mechanism;

FIG. 6 is a sectional view of the connection of the first limiting mechanism;

FIG. 7 is a side view of the apparatus mounted on a frame with the header in an uppermost position;

FIG. 8 is a top view of FIG. 7;

FIG. 9 is a side view of the apparatus mounted to the frame with the header lowered;

fig. 10 is a top view of fig. 9.

Detailed Description

The present invention will be further illustrated with reference to the following figures and specific examples, which are to be understood as merely illustrative and not restrictive of the scope of the invention.

A lawn mower mowing height adjusting device is shown in figures 1-10 and comprises a header 1, a header hanging mechanism 2, a header heightening assembly I3, a header heightening assembly II 4, a limiting mechanism I5, a limiting mechanism II 6 and a frame 7 of a lawn mower, wherein the header hanging mechanism 2 comprises a header front hanging plate 21, a header rear hanging plate 22, a hanging ring 23 and a locking nut 24 which are respectively provided with two parts, the header heightening assembly I3 comprises a pedal swinging arm 31, a pedal connecting rod 32, a pedal plate 33 and a connecting plate 34, the header heightening assembly II 4 comprises an heightening swinging arm 41, an heightening connecting rod 42 and a connecting swinging arm 43, the limiting mechanism I5 comprises an heightening limiting plate 51, a sliding block 52, a limiting bolt 53 and a limiting gasket 54, the limiting mechanism II 6 comprises a knob 61, a rotating shaft 62, a connecting column 63, a rotating limiting plate 64, a knob fixing seat 65, a bead screw 66, a fixing bolt 67 and a rotating bearing 68, And an oil ring 69.

The header 1 is arranged at the lower part of the frame 7, the two header front hanging plates 21 are symmetrically arranged at intervals in the horizontal direction at the front part of the upper surface of the header 1, one end of each header front hanging plate 21 is connected with the frame 7, and the other end is connected with the header 1; two header back link plates 22 are at header 1 upper surface's rear portion along horizontal direction interval symmetry setting, and every header back link plate 22's one end is connected with frame 7, and the other end is connected with header 1.

The second header height adjusting assembly 4 is arranged at the rear portion of the header hanging mechanism 2, the two lifting rings 23 are vertically arranged at two ends of the height adjusting connecting rod 42 respectively, the two height adjusting rocker arms 41 are connected with two ends of the height adjusting connecting rod 42 respectively and connected with the upper portions of the corresponding lifting rings 23 through locking nuts 24 respectively, the end portion of each lifting ring 23 is connected with the rack 7, the ring portion is connected with the header 1, and the two height adjusting rocker arms 41 are hinged to the rack 7 respectively.

The first limiting mechanism 5 is arranged on the side of one end of the connecting rocker arm 43, one end of the connecting rocker arm 43 is connected with the end of the height-adjusting connecting rod 42, the other end of the connecting rocker arm is connected with one end of a height-adjusting limiting plate 51, a long groove 511 is formed in the height-adjusting limiting plate 51 along the horizontal direction, one side of the sliding block 52 is arranged in the long groove 511 in a penetrating mode and limited in the long groove 511 through two limiting bolts 53 arranged at intervals, a limiting gasket 54 is arranged between the connecting surface of each limiting bolt 53 and the sliding block 52, and the sliding block 52 is connected.

The header height-adjusting assembly I3 is arranged at the other end of the high limiting plate 51, the pedal swing arm 31 is vertically arranged, the pedal connecting rod 32 and the pedal plate 33 are arranged on the same side face of the pedal swing arm 31 in parallel at intervals and are respectively connected with the pedal swing arm 31, the other end of the pedal connecting rod 32 is connected with the rack 7, one end of the connecting plate 34 is connected with the other side face of the pedal swing arm 31, and the other end of the connecting plate 34 is connected with the other end of the high limiting plate 51.

The second limiting mechanism 6 is arranged at the side of the joint of the second header height-adjusting assembly 4 and the first limiting mechanism 5, the rotating shaft 62 is vertically arranged, the upper end of the rotating shaft is connected with the knob 61, the lower end of the rotating shaft is fixed with the connecting column 63 through the fixing bolt 67, the rotating limiting plate 64 is sleeved and fixed on the outer circumferential surface of the connecting column 63, the connecting column 63 is arranged in the knob fixing seat 65 in a penetrating way and is connected with the knob fixing seat 65 through the rotating bearing 68, the oil ring 69 is arranged at the joint of the connecting column 63 and the rotating bearing 68 at the end part of the rotating bearing 68, the bead screw 66 is arranged on the upper surface of the knob fixing seat 65, the rotating limiting plate 64 is provided with a plurality of through holes 641, the plurality of through holes 641 are circumferentially distributed on the rotating limiting plate 64, the bead screw 66 is clamped in one of the through holes 641, the outer ring of the rotating limiting plate 64 is in a, the gap 512 is in butt joint with one arc-shaped groove 642, so that the height-adjusting limit plate 51 is clamped with the rotating limit plate 64, and the knob fixing seat 65 is connected with the rack 7.

The two header front hanging plates and the two header rear hanging plates are respectively parallel to each other in pairs, the length of a connecting line AB formed by the header front hanging plates and a connecting point A of the rack and a connecting point B of the header is equal to the length of a connecting line CD formed by the header rear hanging plates and a connecting point C of the rack and a connecting point D of the header, the successive connecting lines of the ABDC form a parallelogram, and the angle of the other side parallel to the known side is always constant no matter how the inner angle of the quadrangle changes under the condition that the horizontal angle of one side of the parallelogram and the length of the four sides are fixed. According to the principle, when the header mows in any cutting width, the forward inclination angle of the header is determined to be unchanged, so that the mowing principle that the header is low in front and high in back is realized.

When the height of mowing needs to be adjusted, the pedal position is stepped on by feet firstly, the pedal swing arm drives the connecting plate to move, the heightening limiting plate is made to move forwards in sequence, the connecting rocker arm moves forwards in sequence, the two heightening swing arms rotate anticlockwise through the heightening connecting rod, the header is lifted to the highest position through the lifting ring, according to the required height of mowing, the rotating knob synchronously drives the angle of the rotating limiting plate to the position of the indicated cutting width, then the feet leave the pedal position, the header drives the heightening limiting plate to return to the arc-shaped groove of the rotating limiting plate to be clamped again through the heightening rocker arm under the action of gravity, the bead screw is clamped in a proper through hole again, and the header reaches the required height.

When the foot pedal is stepped on to enable the header to rise to the highest point, the height-adjusting limiting plate is driven by the foot pedal swing arm to move forwards and is far away from the knob positioning plate. The rotary height-adjusting knob rotates, the rotary limiting plate rotates along with the rotary height-adjusting knob, when the rotary height-adjusting knob is adjusted to a mowing height, the through hole of the rotary limiting plate coincides with the center of the wave bead screw, and the steel ball on the wave bead screw is bounced into the through hole under the action of the internal spring. And the knob is continuously rotated, the steel balls are pressed into the ball screws again, after the required mowing height is adjusted, the feet are loosened, the header is put down, the height-adjusting limiting plate is driven by the height-adjusting swing arm and the connecting plate to move backwards, and the height-adjusting limiting plate is pushed into a through hole of the rotating limiting plate to be limited.

When the height of the header needs to be debugged, the pedal position is stepped on by the foot, the header is enabled to rise to the highest position, meanwhile, the knob is rotated to the lowest cutting width position, then the foot leaves the pedal position, the debugging gauge block is arranged below the header, the position of the locking nut on the hanging ring is adjusted, the header falls onto the debugging gauge block under the action of gravity, the operation is repeated at last, the debugging gauge block is taken away after the header is adjusted to the highest position, and the height of the header is debugged.

The device enables an operator to adjust the height of the header in a working operation area through the matching of all mechanisms and components, thereby simplifying operation steps, reducing labor intensity, improving working efficiency and increasing safety; through using this device, when guaranteeing that the header is applicable to the operation of mowing of multiple high demand, can also guarantee the harmony on the lawn of cutting, improve pleasing to the eye degree.