CN211268302U - Small-size four-wheel self-propelled boom sprayer - Google Patents
Small-size four-wheel self-propelled boom sprayer Download PDFInfo
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- CN211268302U CN211268302U CN201922373833.3U CN201922373833U CN211268302U CN 211268302 U CN211268302 U CN 211268302U CN 201922373833 U CN201922373833 U CN 201922373833U CN 211268302 U CN211268302 U CN 211268302U
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Abstract
The utility model relates to the technical field of agricultural machinery, specifically speaking relates to a small-size four-wheel self-propelled boom sprayer. Comprises a frame, a walking system, a steering system, a spraying system and an engine; the frame comprises a frame chassis, a telescopic front axle, front axle legs, a telescopic rear axle and rear axle legs; the walking system comprises a front walking wheel, a rear walking wheel and a walking chain transmission mechanism for driving the rear walking wheel to rotate; the spraying system comprises a liquid medicine box, a three-cylinder pump and a lifting type spraying mechanism. The front axle and the rear axle of the frame of the utility model both adopt telescopic structures, thus realizing bidirectional adjustment of wheel track and effectively avoiding rolling to crops by wheels during operation; moreover, the lifting of the spray rod is more convenient and faster, and the labor intensity of an operator is greatly reduced; in addition, all parts of the steering system are tightly matched, so that flexible control of line changing, transition and steering in the small plot operation process in the sprayer operation process is realized.
Description
Technical Field
The utility model relates to the technical field of agricultural machinery, specifically speaking relates to a small-size four-wheel self-propelled boom sprayer.
Background
With the mechanization and intellectualization of agricultural production, the self-propelled sprayer is widely used as a high-efficiency plant protection agricultural machine for weeding, deinsectization, sterilization, disease prevention and land fertilization in paddy fields and dry lands. The existing small-sized four-wheel self-propelled boom sprayer has the following problems: 1. the wheel track can not be adjusted according to the difference of the planting density of the crops, so that the rolling compaction can be caused to the crops when the vehicle walks in the field; 2. the lifting of the spray rod is realized by the insertion and matching of a lifting rod arranged on the spray rod mounting frame and a sleeve assembled on the rear axle, when the spray rod is lifted, the spray rod mounting frame needs to be lifted manually to a required height and then fixed, the lifting process is complicated, and the labor intensity of an operator is high; 3. the steering system is too simple and inaccurate in steering control, so that the steering is not flexible enough in line changing, field changing and small plot operation processes in the operation process.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a small-size four-wheel self-propelled boom sprayer, technical problem more than solving.
In order to solve the above problems, the utility model adopts the following technical scheme:
a small-sized four-wheel self-propelled boom sprayer comprises a frame, a traveling system, a steering system, a spraying system and an engine for providing power for the traveling system and the spraying system; the frame comprises a frame chassis, a telescopic front axle assembled at the front end of the frame chassis, front axle legs assembled at the left and right ends of the telescopic front axle, a telescopic rear axle assembled at the rear end of the frame chassis and rear axle legs assembled at the left and right ends of the telescopic rear axle, wherein a swinging mechanism is assembled between the frame chassis and the telescopic front axle; the walking system comprises a front walking wheel assembled on the front axle leg, a rear walking wheel assembled on the rear axle leg and a walking chain transmission mechanism for driving the rear walking wheel to rotate; the spraying system comprises a liquid medicine box, a three-cylinder pump and a lifting type spraying mechanism.
Preferably: the telescopic front axle comprises front connecting inner tubes fixedly assembled on the two front axle legs respectively and a front connecting outer tube arranged between the two front connecting inner tubes, wherein two ends of the front connecting outer tube are respectively in plug-in fit with the two front connecting inner tubes and are locked and fixed through a U-shaped fixing clamp.
Preferably: the telescopic rear axle comprises a U-shaped connecting frame and two rear connecting outer tubes, wherein the U-shaped connecting frames and the two rear connecting outer tubes are fixedly assembled on the two rear axle legs respectively, and two ends of each rear connecting outer tube are respectively in plug-in fit with the support arms on the same side of the two U-shaped connecting frames and are locked and fixed through U-shaped fixing clamps.
Preferably: the swing mechanism comprises a connecting frame fixedly connected with a frame chassis, a swing limiting cross beam assembled at the front end of the connecting frame, a swing bearing fixedly assembled on the swing limiting cross beam and a swing shaft in socket joint fit with the swing shaft, and the swing shaft is fixedly assembled on the telescopic front axle; and the bottoms of the two ends of the swing limiting cross beam are respectively provided with a limiting rubber column.
Preferably: the walking chain transmission mechanism comprises a gearbox in transmission connection with the power output end of the engine, a differential in transmission connection with the power output shaft of the gearbox, and transmission half shafts respectively assembled on two sides of the differential; the tail end of the power output shaft of the gearbox is provided with a transmission chain wheel, and the transmission chain wheel is in transmission connection with the differential through a chain; the tail end of the transmission half shaft is assembled at the top end of the rear axle leg in a rotating connection mode, an upper chain wheel is assembled on the transmission half shaft, and the upper chain wheel is in transmission connection with a lower chain wheel assembled on a rear travelling wheel shaft through a chain.
Preferably: the rear axle leg is in a square hollow tubular shape, and the upper chain wheel, the lower chain wheel and a chain assembled between the upper chain wheel and the lower chain wheel are all positioned in an inner cavity of the rear axle leg.
Preferably: the lifting type spraying mechanism comprises a spray rod, a spray rod suspension and a hand-operated lifting device for driving the spray rod suspension to lift; the spray rod suspension comprises a spray rod mounting frame and a connecting rod support, wherein the spray rod mounting frame is used for mounting a spray rod, one end of the connecting rod support is assembled on the spray rod mounting frame, and the other end of the connecting rod support is assembled on the telescopic rear axle; the hand-operated lifting device comprises a pulley arranged on the telescopic rear axle, a steel wire rope and a winch arranged on the chassis of the frame, wherein one end of the steel wire rope is fixed on the connecting rod bracket, and the other end of the steel wire rope winds on the winch by bypassing the pulley.
Preferably: the connecting rod bracket is integrally H-shaped and comprises two symmetrically arranged connecting arms and a connecting cross rod assembled between the two connecting arms, one end of each connecting arm is hinged to a connecting seat fixedly assembled on the telescopic rear axle, and the other end of each connecting arm is hinged to a connecting seat fixedly assembled on the spray rod mounting frame; the end part of the steel wire rope is tied on a wire hole plate fixedly arranged on the connecting cross rod.
Preferably: the steering system comprises a steering wheel, a steering shaft fixedly connected to the bottom of the steering wheel, a steering universal joint assembled at the bottom of the steering shaft, a steering transmission shaft assembled at the bottom of the steering universal joint, a right-angle driver assembled at the bottom of the steering transmission shaft, a mechanical steering gear in transmission connection with the right-angle driver through a transmission rod and a steering tie rod; the mechanical steering gear is assembled at the top of one of the two front axle legs and is connected with a wheel fork frame for mounting a front road wheel through a rotating shaft assembled in the inner cavity of the front axle leg; the steering tie rod is arranged between the two front axle legs, two ends of the steering tie rod are respectively connected with the rotating shaft through a trapezoid arm, one end of the trapezoid arm is fixedly assembled at the top end of the rotating shaft, and the other end of the trapezoid arm is hinged to the end portion of the steering tie rod.
Preferably: and a transverse pull rod is arranged between the front axle leg and the rear axle leg on the same side.
Has the advantages that: compared with the prior art, the front axle and the rear axle of the frame of the utility model both adopt telescopic structures, thus realizing bidirectional adjustment of wheel track and effectively avoiding rolling to crops by wheels during operation; moreover, the lifting of the spray rod is realized by driving the spray rod mounting frame to lift through a steel wire rope and a connecting rod bracket by utilizing a winch, the spray rod height adjusting mode is more convenient and faster, and meanwhile, the labor intensity of an operator is greatly reduced; in addition, all parts of the steering system are tightly matched, and flexible control of line changing, transition and steering in the small land parcel operation process in the operation process of the small four-wheel self-propelled boom sprayer is realized.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural view of the frame according to the present invention;
fig. 3 is a schematic structural view of the walking system of the present invention;
fig. 4 is a schematic structural view of the lifting type spraying mechanism of the present invention;
fig. 5 is a schematic structural view of a steering system according to the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the following detailed description.
Examples
Referring to fig. 1, the small-sized four-wheel self-propelled boom sprayer according to the present embodiment includes a frame, a traveling system, a steering system, a spraying system, and an engine 1 for powering the traveling system and the spraying system. The frame comprises a frame chassis 2, a telescopic front axle 3 assembled at the front end of the frame chassis 2, front axle legs 4 assembled at the left end and the right end of the telescopic front axle 3, a telescopic rear axle 5 assembled at the rear end of the frame chassis 2 and rear axle legs 6 assembled at the left end and the right end of the telescopic rear axle 5. The traveling system comprises a front traveling wheel 8 assembled on the front axle leg 4, a rear traveling wheel 9 assembled on the rear axle leg 6 and a traveling chain transmission mechanism driving the rear traveling wheel 9 to rotate. The spraying system comprises a liquid medicine box 10, a three-cylinder pump 11 and a lifting type spraying mechanism.
Referring to fig. 2, the telescopic front axle 3 includes front connection inner tubes 12 respectively fixedly mounted on the two front axle legs 4 and a front connection outer tube 13 disposed between the two front connection inner tubes 12, and both ends of the front connection outer tube 13 are respectively in insertion fit with the two front connection inner tubes 12 and are locked and fixed by U-shaped fixing clips 14. The telescopic rear axle 5 comprises a U-shaped connecting frame 15 and two rear connecting outer tubes 16 which are fixedly assembled on the two rear axle legs 6 respectively, and two ends of each rear connecting outer tube 16 are respectively in plug-in fit with the support arms on the same side of the two U-shaped connecting frames 15 and are locked and fixed through U-shaped fixing clamps 14. During the use, can adjust the width of telescopic front axle 3 and telescopic rear axle 5 according to the planting interval of crops to reach the purpose of adjustment wheel base, avoid spouting the grinding that the medicine in-process wheel pair caused crops.
In order to ensure that the two front running wheels 8 can still land simultaneously when the spraying machine is running on rough ground, a wobble mechanism 7 is fitted between the frame chassis 2 and the telescopic front axle 3. The swing mechanism 7 comprises a connecting frame 71 fixedly connected with the frame chassis 2, a swing limiting cross beam 72 assembled at the front end of the connecting frame 71, a swing bearing 73 fixedly assembled on the swing limiting cross beam 72 and a swing shaft 74 in plug fit with the swing bearing 73, wherein the swing shaft 74 is fixedly assembled on the telescopic front axle 3. And the bottom parts of the two ends of the swing limiting cross beam 72 are respectively provided with a limiting rubber column 75. When the sprayer runs on the rugged ground, the two front traveling wheels 8 can swing up and down along with the ground potential around the swing shaft 74 within a certain range, so that the two front traveling wheels 8 can simultaneously land, and the running stability of the sprayer is ensured.
In order to reduce the damage to the front axle legs 4 in the event of an accidental collision of the front road wheels 8, a track rod 40 is fitted between the front axle legs 4 and the rear axle legs 6 on the same side. When the front road wheels 8 collide, the force is transmitted and dispersed backwards through the tie rods 40, and the damage to the front axle legs 4 is effectively reduced.
The front axle and the rear axle adopt telescopic structures, so that the bidirectional adjustment of the wheel track is realized, and the rolling of the wheels on crops is effectively avoided when the vehicle is used; the arrangement of the swing mechanism 7 enables the two front running wheels 8 to land on the rugged ground at the same time, thereby ensuring the running stability of the spraying machine; in addition, the provision of the track rod 40 effectively mitigates damage to the front axle legs 4 from an accidental impact.
Referring to fig. 3, the walking chain transmission mechanism comprises a gearbox 17 in transmission connection with the power output end of the engine 1, a differential 18 in transmission connection with the power output shaft of the gearbox 17, and transmission half shafts 19 respectively assembled at two sides of the differential 18. The tail end of the power output shaft of the gearbox 17 is provided with a transmission chain wheel, and the transmission chain wheel is in transmission connection with the differential 18 through a chain. The tail end of the transmission half shaft 19 is assembled at the top end of the rear axle leg 6 in a rotating connection mode, an upper chain wheel is assembled on the transmission half shaft, and the upper chain wheel is in transmission connection with a lower chain wheel assembled on a wheel shaft of the rear travelling wheel 9 through a chain. The rear axle legs 6 are in a square hollow tubular shape, the tail ends of the transmission half shafts 19 penetrate through the rear axle legs 6 and are assembled on two side walls of the top ends of the rear axle legs 6 through bearings in a rotating connection mode, and the upper chain wheels are assembled on the parts, located between the two side walls of the rear axle legs 6, of the transmission half shafts 19. The wheel shaft of the rear travelling wheel 9 penetrates through the rear axle legs 6 and is assembled on two side walls at the bottom ends of the rear axle legs 6 in a rotating connection mode through bearings, and the lower chain wheel is assembled on the part, between the two side walls, of the wheel shaft of the rear travelling wheel 9. Chains are respectively adopted between the gearbox 17 and the differential 18 and between the transmission half shaft 19 and the wheel axle of the rear walking wheel 9 for transmission, the structure is simple, the failure rate is low, and the transmission is more reliable.
Referring to fig. 4, the lifting type spraying mechanism comprises a spray rod 20, a spray rod suspension and a hand-operated lifting device for driving the spray rod suspension to lift. Wherein:
the spray lance suspension includes spray lance mounting bracket 21 and the connecting rod support that is used for installing spray lance 20, the connecting rod support is whole to be H-shaped, including the linking arm 25 that two symmetries set up and the horizontal connecting rod 26 of assembly between two linking arms 25, linking arm 25 one end hinged joint on fixed joint seat 27 of assembling on telescopic rear axle 5, other end hinged joint is on fixed joint seat 27 of assembling on spray lance mounting bracket 21.
The hand-operated lifting device comprises a pulley 22 arranged on the telescopic rear axle 5, a steel wire rope 23 and a winch 24 arranged on the frame chassis 2, wherein one end of the steel wire rope 23 is tied on a wire hole plate 28 fixedly arranged on the connecting cross rod 26, and the other end of the steel wire rope is wound on the winch 24 around the pulley 22. The winch 24 is a manual winch with a locking mechanism in the market, and the specific structure and operation thereof are not described in detail herein for the prior art.
During the use, wave the handle of capstan winch 24 and drive wire rope 23 and receive and release, drive spray lance mounting bracket 21 goes up and down, and then drive spray lance 20 and go up and down, when spray lance 20 goes up and down to required height, carry out the locking through the locking mechanism on the capstan winch 24 to capstan winch 24 and fix and can accomplish the fixed of spray lance 20 height. Utilize capstan winch 24 to drive spray lance mounting bracket 21 through wire rope 23 and connecting rod support and go up and down for the altitude mixture control of spray lance 20 is convenient and fast more, and moreover, the lift in-process of spray lance mounting bracket 21 need not the operator and moves and lift, greatly reduced operator's intensity of labour.
Referring to fig. 5, the steering system includes a steering wheel 29, a steering shaft 30 fixedly connected to the bottom of the steering wheel 29, a steering universal joint 31 mounted to the bottom of the steering shaft 30, a steering drive shaft 32 mounted to the bottom of the steering universal joint 31, a right-angle driver 33 mounted to the bottom of the steering drive shaft 32, a mechanical steering gear 35 drivingly connected to the right-angle driver 33 through a drive rod 34, and a tie rod 36. The mechanical steering gear 35 is fitted on top of one of the two front axle legs 4 and is connected to a wheel fork 38 for mounting the front road wheels 8 via a rotary shaft 37 fitted in an inner cavity of the front axle leg 4. The tie rod 36 is arranged between the two front axle legs 4, two ends of the tie rod are respectively connected with the rotating shaft 37 through a trapezoid arm 39, one end of the trapezoid arm 39 is fixedly assembled at the top end of the rotating shaft 37, and the other end of the trapezoid arm 39 is hinged to the end of the tie rod 36. All parts of the steering system are tightly matched, and flexible control of line changing, transition and steering in the small land parcel operation process in the operation process of the small four-wheel self-propelled boom sprayer is realized.
The front axle and the rear axle of the frame of the utility model both adopt telescopic structures, thus realizing bidirectional adjustment of wheel track and effectively avoiding rolling to crops by wheels during operation; moreover, the lifting of the spray rod is realized by driving the spray rod mounting frame to lift through a steel wire rope and a connecting rod bracket by utilizing a winch, the spray rod height adjusting mode is more convenient and faster, and meanwhile, the labor intensity of an operator is greatly reduced; in addition, all parts of the steering system are tightly matched, and flexible control of line changing, transition and steering in the small land parcel operation process in the operation process of the small four-wheel self-propelled boom sprayer is realized.
The above is only the embodiment of the present invention, not so limit on the other hand through the patent scope of the present invention, all utilize the equivalent structure made in the specification and the attached drawings, directly or indirectly apply to other related technical fields, all with the same principle within the patent protection scope of the present invention.
Claims (10)
1. A small-sized four-wheel self-propelled boom sprayer comprises a frame, a traveling system, a steering system, a spraying system and an engine (1) for providing power for the traveling system and the spraying system; the method is characterized in that: the frame comprises a frame chassis (2), a telescopic front axle (3) assembled at the front end of the frame chassis (2), front axle legs (4) assembled at the left and right ends of the telescopic front axle (3), a telescopic rear axle (5) assembled at the rear end of the frame chassis (2) and rear axle legs (6) assembled at the left and right ends of the telescopic rear axle (5), wherein a swing mechanism (7) is assembled between the frame chassis (2) and the telescopic front axle (3); the traveling system comprises a front traveling wheel (8) assembled on the front axle leg (4), a rear traveling wheel (9) assembled on the rear axle leg (6) and a traveling chain transmission mechanism for driving the rear traveling wheel (9) to rotate; the spraying system comprises a liquid medicine box (10), a three-cylinder pump (11) and a lifting type spraying mechanism.
2. The small four-wheel self-propelled boom sprayer of claim 1, wherein: the telescopic front axle (3) comprises a front connecting inner tube (12) fixedly assembled on two front axle legs (4) respectively and a front connecting outer tube (13) arranged between the two front connecting inner tubes (12), wherein two ends of the front connecting outer tube (13) are respectively in plug-in fit with the two front connecting inner tubes (12) and are locked and fixed through a U-shaped fixing clamp (14).
3. The small four-wheel self-propelled boom sprayer of claim 1, wherein: the telescopic rear axle (5) comprises a U-shaped connecting frame (15) and two rear connecting outer tubes (16) which are fixedly assembled on the two rear axle legs (6) respectively, and two ends of each rear connecting outer tube (16) are respectively in plug-in fit with the support arms on the same side of the two U-shaped connecting frames (15) and are locked and fixed through U-shaped fixing clamps (14).
4. The small four-wheel self-propelled boom sprayer of claim 1, wherein: the swing mechanism (7) comprises a connecting frame (71) fixedly connected with the frame chassis (2), a swing limiting cross beam (72) assembled at the front end of the connecting frame (71), a swing bearing (73) fixedly assembled on the swing limiting cross beam (72) and a swing shaft (74) in insertion fit with the swing bearing (73), wherein the swing shaft (74) is fixedly assembled on the telescopic front axle (3); and the bottoms of the two ends of the swing limiting cross beam (72) are respectively provided with a limiting rubber column (75).
5. The small four-wheel self-propelled boom sprayer of claim 1, wherein: the walking chain transmission mechanism comprises a gearbox (17) in transmission connection with a power output end of the engine (1), a differential (18) in transmission connection with a power output shaft of the gearbox (17), and transmission half shafts (19) respectively assembled on two sides of the differential (18); the tail end of a power output shaft of the gearbox (17) is provided with a transmission chain wheel, and the transmission chain wheel is in transmission connection with the differential (18) through a chain; the tail end of the transmission half shaft (19) is assembled at the top end of the rear axle leg (6) in a rotating connection mode, an upper chain wheel is assembled on the transmission half shaft, and the upper chain wheel is in transmission connection with a lower chain wheel assembled on a wheel shaft of the rear travelling wheel (9) through a chain.
6. The small four-wheel self-propelled boom sprayer of claim 5, wherein: the rear axle leg (6) is in a square hollow tubular shape, and the upper chain wheel, the lower chain wheel and a chain assembled between the upper chain wheel and the lower chain wheel are all positioned in an inner cavity of the rear axle leg (6).
7. The small four-wheel self-propelled boom sprayer of claim 1, wherein: the lifting type spraying mechanism comprises a spray rod (20), a spray rod suspension and a hand-operated lifting device for driving the spray rod suspension to lift; the spray rod suspension comprises a spray rod mounting frame (21) for mounting a spray rod (20) and a connecting rod support, wherein one end of the connecting rod support is assembled on the spray rod mounting frame (21), and the other end of the connecting rod support is assembled on a telescopic rear axle (5); hand formula elevating gear is including propping up pulley (22), wire rope (23) of establishing on telescopic rear axle (5) and propping up capstan winch (24) of establishing on frame chassis (2), wire rope (23) one end fix on the connecting rod support, the other end is walked around pulley (22) and is twined on capstan winch (24).
8. The small four-wheel self-propelled boom sprayer of claim 7, wherein: the connecting rod bracket is integrally H-shaped and comprises two symmetrically arranged connecting arms (25) and a connecting cross rod (26) assembled between the two connecting arms (25), one end of each connecting arm (25) is hinged to a connecting seat (27) fixedly assembled on the telescopic rear axle (5), and the other end of each connecting arm is hinged to the connecting seat (27) fixedly assembled on the spray rod mounting frame (21); the end part of the steel wire rope (23) is tied on a wire hole plate (28) fixedly arranged on the connecting cross rod (26).
9. The small-sized four-wheel self-propelled boom sprayer according to any one of claims 1 to 8, wherein: the steering system comprises a steering wheel (29), a steering shaft (30) fixedly connected to the bottom of the steering wheel (29), a steering universal joint (31) assembled at the bottom of the steering shaft (30), a steering transmission shaft (32) assembled at the bottom of the steering universal joint (31), a right-angle driver (33) assembled at the bottom of the steering transmission shaft (32), a mechanical steering gear (35) in transmission connection with the right-angle driver (33) through a transmission rod (34) and a tie rod (36); the mechanical steering gear (35) is assembled on the top of one of the two front axle legs (4) and is connected with a wheel fork frame (38) for mounting the front road wheels (8) through a rotating shaft (37) assembled in the inner cavity of the front axle leg (4); the steering tie rod (36) is arranged between the two front axle legs (4), two ends of the steering tie rod are respectively connected with the rotating shaft (37) through a trapezoidal arm (39), one end of the trapezoidal arm (39) is fixedly assembled at the top end of the rotating shaft (37), and the other end of the trapezoidal arm is hinged to the end part of the steering tie rod (36).
10. The small-sized four-wheel self-propelled boom sprayer according to any one of claims 1 to 8, wherein: and a transverse pull rod (40) is arranged between the front axle leg (4) and the rear axle leg (6) on the same side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922373833.3U CN211268302U (en) | 2019-12-25 | 2019-12-25 | Small-size four-wheel self-propelled boom sprayer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922373833.3U CN211268302U (en) | 2019-12-25 | 2019-12-25 | Small-size four-wheel self-propelled boom sprayer |
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| CN211268302U true CN211268302U (en) | 2020-08-18 |
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| CN201922373833.3U Active CN211268302U (en) | 2019-12-25 | 2019-12-25 | Small-size four-wheel self-propelled boom sprayer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110896937A (en) * | 2019-12-25 | 2020-03-24 | 山东佳尔能机电有限公司 | Small-size four-wheel self-propelled boom sprayer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110896937A (en) * | 2019-12-25 | 2020-03-24 | 山东佳尔能机电有限公司 | Small-size four-wheel self-propelled boom sprayer |
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