CN216492365U - Plastic mulching device for tobacco field - Google Patents

Abstract

The utility model provides a mulching device for a tobacco field, which comprises a mulching frame, a film roll clamping mechanism and a row spacing adjusting mechanism, wherein the film roll clamping mechanism comprises a mulching film roll, two lifting arms, clamping arms and clamping blocks, two limiting sleeves are correspondingly fixed on the outer side of the mulching frame, and the two limiting sleeves are respectively sleeved on the outer sides of the two lifting arms. In order to freely adjust the height of the mulching film roll, the limiting sleeve is arranged on the lifting arm, then the lifting arm is prevented from falling off the mulching film covering frame through the matching of the limiting block on the lifting arm, the lifting arm can move up and down freely, the position of the mulching film roll fixed between the two lifting arms can be automatically adjusted according to different ridging heights, in order to fix the mulching film rolls with different lengths, the clamping arm is sleeved with a spring so as to adjust the position of the clamping arm, when the mulching film rolls with different lengths are fixed between the two clamping blocks, the end part of the mulching film roll can push the clamping block, the clamping block can further extrude the spring, and the mulching film roll is fixed through the reactive force of the spring.

Description

Plastic mulching device for tobacco field

Technical Field

The utility model belongs to the technical field of farmland mulching, and particularly relates to a mulching device for a tobacco field.

Background

The plastic film mulching is an agricultural measure for covering the ground surface with an agricultural plastic film, and has the effects of preserving heat, preserving moisture, resisting insects, preventing diseases, inhibiting weed growth and the like, can improve the physical and chemical properties of soil, promote the early growth and the fast growth of crops, improve the yield and the quality of the crops and achieve the aim of improving the agricultural planting benefit, and is widely used in the cultivation process of the crops.

The distribution of tobacco regions in China is very wide, the natural conditions of the tobacco regions are greatly different, tobacco is a temperature-preference crop, the temperature has obvious influence on the distribution, growth and development and yield and quality of the tobacco, the tobacco regions are dry and rain-less in spring, the temperature is low, and tobacco seedlings grow slowly in the early stage of the field. By adopting the mulching film for covering, the heat of solar illumination can be effectively absorbed, the effect of heat preservation at night is achieved, and the influence on the healthy growth of tobacco seedlings caused by overlarge temperature difference between day and night is avoided. Meanwhile, the method can also avoid the excessive evaporation of water, meet the basic requirement of tobacco seedling growth on water, accelerate the decomposition of organic matters, enhance the water absorption and fertilizer absorption capacity of the root system, promote the early growth, ensure the coordinated growth of the tobacco plants in the early and later periods and achieve the purpose of high quality and high yield.

The mulching film has the functions of heat preservation and temperature increase on soil in a low-temperature period, and can advance the field transplanting period of the tobacco, so that the quality of the mulching film plays a crucial role in the growth of the tobacco.

However, the existing mulching device is low in flexibility, and when the existing mulching device is used for mulching tobacco fields with different ridges and heights, the existing mulching device cannot finish mulching operation at high quality, so that the quality of a tobacco growing environment is reduced, and the growth and development of tobacco are influenced.

Based on this, it is necessary to study a mulching device for tobacco fields.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects and problems of the existing equipment, the utility model provides the mulching device for the tobacco field, which effectively solves the problems that the existing mulching device is low in flexibility, and when the mulching is carried out on some tobacco ridges with different heights, the existing mulching device cannot complete the mulching operation at high quality, the quality of the tobacco growing environment is reduced, and the growth and development of tobacco are influenced.

The technical scheme adopted by the utility model for solving the technical problems is as follows:

a mulching device for a tobacco field comprises a mulching frame, a film roll clamping mechanism and a row spacing adjusting mechanism, wherein the film roll clamping mechanism comprises a mulching film roll, two lifting arms, two clamping arms and two clamping blocks, two limiting sleeves are correspondingly fixed on the outer side of the mulching frame and are respectively sleeved on the outer sides of the two lifting arms, the lifting arms slide up and down in the limiting sleeves, the limiting blocks are fixed at the upper ends of the lifting arms, the lower ends of the lifting arms are sleeved on the outer sides of the clamping arms, a stop block is fixed at the outer end of each clamping arm, the inner end of each clamping arm is rotatably connected with the clamping block, a positioning block matched with a winding drum of the mulching film roll is fixed on the inner side of each clamping block, a spring is sleeved on the outer side of each clamping arm and located between the lifting arm and the clamping block, and the mulching film roll is located between the two clamping blocks; the line spacing adjusting mechanism comprises a hand wheel, two fixing plates, a threaded rod, a limiting column, two inner crank arms and a wheel carrier, the two fixing plates are correspondingly fixed at the bottom of the film coating frame, the threaded rod and the limiting column are arranged between the two fixing plates, threaded sections in opposite directions are arranged on the threaded rod, the fixing plates are fixed on the inner side of the film coating frame, the hand wheel is positioned right above the fixing plates, a driving bevel gear is fixed at the bottom end of a rotating shaft of the hand wheel, and a driven bevel gear meshed with the driving bevel gear is fixed in the middle of the threaded rod; two set up screw and the slide opening that corresponds and match with threaded rod and spacing post on interior turning arm and the wheel carrier, and two interior turning arms are located between two wheel carriers, interior turning arm lower extreme rotates and is connected with the precompression roller that leans out, and the precompression roller setting is in press mold wheel the place ahead, the wheel carrier rear is provided with the soil dumping wheel, and is provided with outer turning arm between wheel carrier and the soil dumping wheel.

Furthermore, the top of the film coating frame is provided with a connecting arm.

Furthermore, the inner end of the clamping arm is rotatably connected with the clamping block through a bearing.

Furthermore, the inner crank arm and the wheel carrier are correspondingly sleeved on the outer sides of the threaded rod and the limiting column through a screw hole and a sliding hole on the surfaces of the inner crank arm and the wheel carrier.

Furthermore, the soil pouring wheel and the film pressing wheel are positioned on the same horizontal plane, and the soil pouring wheel is arranged in an inward inclined mode.

The utility model has the beneficial effects that: the utility model provides the mulching film covering device which is wide in application range and convenient to adjust, and aims to solve the problems that the existing mulching film covering device is low in flexibility, can not finish film covering operation with high quality when ridges of certain tobacco fields are formed at different heights and widths, reduces the quality of a tobacco growing environment and influences the growth and development of tobacco.

In order to realize ridging of tobacco fields with different heights and widths, the film roll clamping mechanism is arranged, and can freely adjust the height of a film roll and fix the film rolls with different lengths.

In order to freely adjust the height of the mulching film roll, the limiting sleeve is installed on the lifting arm, then the limiting block is matched with the lifting arm, the lifting arm is prevented from falling off the mulching film covering frame, meanwhile, the lifting arm can freely move up and down, the mulching film roll fixed between the two lifting arms can automatically adjust the position according to different ridging heights, in order to fix the mulching film rolls with different lengths, the clamping arms are sleeved with springs, so that the position of the clamping arms can be adjusted, when the mulching film rolls with different lengths are fixed between the two clamping blocks, the end parts of the mulching film roll can push the clamping blocks, the clamping blocks can further extrude the springs, the mulching film roll is fixed through the reaction force of the springs, the film roll clamping mechanism is simple in operation, the height of the ridging and the length of the mulching film roll can be automatically adjusted, labor force is saved, and the working efficiency and the application range are improved.

In order to improve the film covering quality and ensure the quality of a tobacco growing ring, the utility model is provided with a row spacing adjusting mechanism which is convenient to operate, namely, a driving bevel gear at the bottom end of a rotating shaft of the row spacing adjusting mechanism drives a driven bevel gear on a threaded rod to rotate by rotating a hand wheel, an inner crank arm sleeved at the two ends of the threaded rod and a wheel carrier can synchronously move in opposite directions by rotating the threaded rod, so that the corresponding distance between the inner crank arm and the wheel carrier is adjusted according to the width of ridge forming to improve the film pressing effect, thereby ensuring the film covering quality, during the film covering, the pre-pressing roller can pre-press the mulching film, meanwhile, the pre-pressing roller can tension the mulching film, thereby reducing the height of the mulching film, facilitating the film pressing wheel to press the film, the film pressing wheel to contact the mulching film with the ground, then, soil is pressed on the mulching film by a soil pouring wheel at the rear of the pre-pressing roller to press the mulching film, thereby completing the film covering, the film covering device can be quickly adjusted according to the specification of ridge forming, with the purpose of guaranteeing the quality of the film, the practicability and the working efficiency of the device are effectively improved.

Drawings

FIG. 1 is an overall schematic view of the present invention.

FIG. 2 is a schematic front view of the present invention.

Fig. 3 is a front view of the film roll holding mechanism of the present invention.

Fig. 4 is an overall schematic view of the line spacing adjustment mechanism of the present invention.

In the figure: 1. a film covering frame; 101. a limiting sleeve; 2. a lifting arm; 201. a limiting block; 3. a clamp arm; 4. a stopper; 5. a spring; 6. a clamping block; 7. rolling the mulching film; 8. a hand wheel; 9. a fixing plate; 10. a threaded rod; 11. a limiting column; 12. positioning blocks; 13. a driving bevel gear; 14. a driven bevel gear; 15. an inner crank arm; 16. pre-pressing rollers; 17. a wheel carrier; 18. a film pressing wheel; 19. a soil pouring wheel; 20. an outer crank arm; 21. a connecting arm; 22. and (7) fixing the plate.

Detailed Description

The utility model is further illustrated with reference to the following figures and examples.

Example 1: the embodiment aims at providing a tobacco field mulching device, mainly carries out the tectorial membrane to the tobacco field of different ridging specifications, guarantees the tectorial membrane quality, improves the growing environment quality of tobacco.

As shown in fig. 1 and fig. 3, the mulching film roll fixing device comprises a mulching film frame 1, a film roll clamping mechanism and a row spacing adjusting mechanism, wherein a connecting arm 21 is arranged at the top of the mulching film frame 1, the film roll clamping mechanism comprises a mulching film roll 7, two lifting arms 2, a clamping arm 3 and a clamping block 6, two limiting sleeves 101 are correspondingly fixed at the outer side of the mulching film frame 1, the two limiting sleeves 101 are respectively sleeved at the outer sides of the two lifting arms 2, the lifting arms 2 slide up and down in the limiting sleeves 101, the upper ends of the limiting sleeves are fixed with limiting blocks 201, the lower ends of the lifting arms 2 are sleeved at the outer sides of the clamping arms 3, in order to freely adjust the height of the mulching film roll 7, the limiting sleeves 101 are sleeved on the lifting arms 2, then the lifting arms 2 are prevented from falling off the mulching film frame 1 by the cooperation of the limiting blocks 201 on the lifting arms 2, the lifting arms 2 can move up and down freely, the position of the mulching film roll 7 fixed between the two lifting arms 2 can be automatically adjusted according to different ridging heights, the outer end of the clamping arm 3 is fixed with a stop block 4, the inner end is rotatably connected with a clamping block 6 through a bearing, the bearing is arranged so that the clamping block 6 can synchronously rotate with a mulching film roll 7 to reduce the resistance of the mulching film roll 7 and smoothly complete primary operation of mulching film, a positioning block 12 matched with a winding drum of the mulching film roll 7 is fixed on the inner side of the clamping block 6, a spring 5 is sleeved on the outer side of the clamping arm 3, the spring 5 is positioned between the lifting arm 2 and the clamping block 6, the mulching film roll 7 is positioned between the two clamping blocks 6, in order to fix the mulching film rolls 7 with different lengths, the spring 5 is sleeved on the clamping arm 3 so as to adjust the positions of the clamping arm 3, when the mulching film rolls 7 with different lengths are fixed between the two clamping blocks 6, the end parts of the mulching film roll 7 can push the clamping blocks 6, so that the clamping blocks 6 extrude the spring 5, the mulching film roll 7 is fixed through the reaction force of the spring 5, this fixture is rolled up to membrane easy operation can be according to the height of ridging and the length of plastic film book 7 and adjust by oneself, has saved the labour, has improved work efficiency and application scope.

Embodiment 2, as shown in fig. 1, 2, and 4, in order to improve the film coating quality and ensure the quality of the growth ring of tobacco, a row spacing adjustment mechanism is provided, which is convenient to operate, and includes a hand wheel 8, two fixing plates 9, a threaded rod 10, a limiting column 11, two inner crank arms 15, and a wheel carrier 17, the two fixing plates 9 are correspondingly fixed at the bottom of the film coating frame 1, the threaded rod 10 and the limiting column 11 are arranged between the two fixing plates 9, and the threaded rod 10 is provided with threaded segments in opposite directions, a fixing plate 22 is fixed on the inner side of the film coating frame 1, the hand wheel 8 is located right above the fixing plate 22, a driving bevel gear 13 is fixed at the bottom end of a rotating shaft of the hand wheel 8, and a driven bevel gear 14 engaged with the driving bevel gear 13 is fixed in the middle of the threaded rod 10; screw holes and sliding holes which correspond to and are matched with the threaded rod 10 and the limiting column 11 are formed in the two inner crank arms 15 and the wheel carrier 17, the inner crank arms 15 and the wheel carrier 17 are correspondingly sleeved on the outer sides of the threaded rod 10 and the limiting column 11 through the screw holes and the sliding holes on the surfaces of the inner crank arms 15 and the wheel carrier 17, the driving bevel gear 13 at the bottom end of the rotating shaft of the inner crank arms 15 and the wheel carrier 17 drives the driven bevel gear 14 on the threaded rod 10 to rotate through the rotating hand wheel 8, the inner crank arms 15 and the wheel carrier 17 sleeved at the two ends of the inner crank arms 15 and the wheel carrier 17 can synchronously move in opposite directions through rotation of the threaded rod 10, corresponding distances between the inner crank arms 15 and the wheel carrier 17 are adjusted according to ridging width, film pressing effect is improved, and film laminating quality can be guaranteed.

In embodiment 3, as shown in fig. 2 and the drawings, two inner crank arms 15 are positioned between two wheel frames 17, the lower ends of the inner crank arms 15 are rotatably connected with prepressing rollers 16 which incline outwards, the prepressing rollers 16 are arranged in front of the film pressing wheels 18, soil pouring wheels 19 are arranged behind the wheel frames 17, outer crank arms 20 are arranged between the wheel frames 17 and the soil pouring wheels 19, the soil pouring wheels 19 and the film pressing wheels 18 are positioned on the same horizontal plane, and the soil pouring wheels 19 are arranged in an inwards inclining manner, during the mulching, the prepressing rollers 16 can perform the prepressing effect on the mulching film, and simultaneously the mulching film can be tensioned, so that the height of the mulching film is reduced, the film pressing wheels 18 can press the mulching film, the mulching film is contacted with the ground through the film pressing wheels 18, then soil is pressed on the mulching film through the soil pouring wheels 19 behind the film pressing wheels, the mulching film is pressed, the mulching film is covered, the mulching device can be quickly adjusted according to the ridge forming specification, so as to ensure the film mulching quality, the practicability and the working efficiency of the device are effectively improved.

Claims (5)

1. The utility model provides a plastic mulching device for tobacco field, includes that tectorial membrane frame, membrane roll fixture and line spacing adjustment mechanism, its characterized in that: the film roll clamping mechanism comprises a mulching film roll, two lifting arms, clamping arms and clamping blocks, wherein two limiting sleeves are correspondingly fixed on the outer side of the mulching film frame, the two limiting sleeves are respectively sleeved on the outer sides of the two lifting arms, the lifting arms slide up and down in the limiting sleeves, the limiting blocks are fixed at the upper ends of the lifting arms, the lower ends of the lifting arms are sleeved on the outer sides of the clamping arms, stop blocks are fixed at the outer ends of the clamping arms, the inner ends of the clamping arms are rotatably connected with the clamping blocks, positioning blocks matched with a winding drum of the mulching film roll are fixed on the inner sides of the clamping blocks, springs are sleeved on the outer sides of the clamping arms and positioned between the lifting arms and the clamping blocks, and the mulching film roll is positioned between the two clamping blocks; the line spacing adjusting mechanism comprises a hand wheel, two fixing plates, a threaded rod, a limiting column, two inner crank arms and a wheel carrier, the two fixing plates are correspondingly fixed at the bottom of the film coating frame, the threaded rod and the limiting column are arranged between the two fixing plates, threaded sections in opposite directions are arranged on the threaded rod, the fixing plates are fixed on the inner side of the film coating frame, the hand wheel is positioned right above the fixing plates, a driving bevel gear is fixed at the bottom end of a rotating shaft of the hand wheel, and a driven bevel gear meshed with the driving bevel gear is fixed in the middle of the threaded rod; two set up screw and the slide opening that corresponds and match with threaded rod and spacing post on interior turning arm and the wheel carrier, and two interior turning arms are located between two wheel carriers, interior turning arm lower extreme rotates and is connected with the precompression roller that leans out, and the precompression roller setting is in press mold wheel the place ahead, the wheel carrier rear is provided with the soil dumping wheel, and is provided with outer turning arm between wheel carrier and the soil dumping wheel.

2. The mulch covering device for tobacco fields according to claim 1, wherein: and the top of the film coating frame is provided with a connecting arm.

3. The mulch covering device for tobacco fields according to claim 1, wherein: the inner end of the clamping arm is rotatably connected with the clamping block through a bearing.

4. The mulch covering device for tobacco fields according to claim 1, wherein: the inner crank arm and the wheel carrier are correspondingly sleeved on the outer sides of the threaded rod and the limiting column through screw holes and sliding holes on the surfaces of the inner crank arm and the wheel carrier.

5. The mulch covering device for tobacco fields according to claim 1, wherein: the soil pouring wheel and the film pressing wheel are positioned on the same horizontal plane, and the soil pouring wheel is arranged in an inward inclined mode.

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