阅读说明：本技术 一种农膜卷膜筒与驱动轴的拆装方法 (Method for disassembling and assembling agricultural film rolling drum and driving shaft ) 是由 程立春 马庆明 刘成才 张洪利 刘有懂 李长方 张洪运 李海涛 于 2021-08-11 设计创作，主要内容包括：本发明公开了一种农膜卷膜筒与驱动轴的拆装方法,属于农膜卷装技术领域,其包括如下步骤：(1)提供在周向表面开设有多个开口的驱动轴,在开口内布设可绕驱动轴轴线方向转动的板体,使板体的转轴偏离驱动轴的中心轴；(2)使各个开口内的板体均能够沿相同的锁紧方向从第一状态转动至第二状态；(3)在各个开口内的板体处于第一状态时,将卷膜筒套装到驱动轴上；(4)使卷膜筒相对于驱动轴沿锁紧方向转动。本发明提供的农膜卷膜筒与驱动轴的拆装方法,驱动轴制作成本低,操作方便,板体旋转过程中板体的第一端与驱动轴中心轴的径向距离逐渐增大,胀大驱动轴的外径,将卷膜筒胀紧在驱动轴上。(The invention discloses a method for disassembling and assembling an agricultural film rolling drum and a driving shaft, which belongs to the technical field of agricultural film rolling and comprises the following steps: (1) providing a driving shaft with a plurality of openings on the circumferential surface, and arranging a plate body capable of rotating around the axial direction of the driving shaft in the openings to enable the rotating shaft of the plate body to deviate from the central shaft of the driving shaft; (2) the plate bodies in the openings can rotate from the first state to the second state along the same locking direction; (3) sleeving the film winding drum on the driving shaft when the plate body in each opening is in a first state; (4) the film winding drum is rotated in a locking direction with respect to the drive shaft. According to the method for disassembling and assembling the agricultural film rolling drum and the driving shaft, the manufacturing cost of the driving shaft is low, the operation is convenient, the radial distance between the first end of the plate body and the central shaft of the driving shaft is gradually increased in the rotation process of the plate body, the outer diameter of the driving shaft is expanded, and the film rolling drum is expanded on the driving shaft.)

1. A method for disassembling and assembling an agricultural film rolling drum and a driving shaft is characterized by comprising the following steps:

(1) providing a driving shaft with a plurality of openings on the circumferential surface, arranging a plate body capable of rotating around the axial direction of the driving shaft in the openings, enabling the rotating shaft of the plate body to deviate from the central shaft of the driving shaft, extending a first end of the plate body out of the openings, and positioning a second end of the plate body in the openings;

the plate body reaches a first state and a second state in the process of rotating around the rotating shaft of the plate body, the radial distance between the central shaft of the driving shaft and the first end of the plate body is D1 in the first state, the radial distance between the central shaft of the driving shaft and the first end of the plate body is D2 in the second state, D2 is greater than D1, and D1 is not smaller than the inner diameter of the film winding barrel;

(2) setting the direction of the plate body rotating from the first state to the second state as a locking direction, so that the plate body in each opening can rotate from the first state to the second state along the same locking direction;

(3) sleeving the film winding drum on the driving shaft when the plate body in each opening is in a first state;

(4) the film rolling cylinder rotates along the locking direction relative to the driving shaft, and the first ends of the plate bodies are kept in contact with the inner wall of the film rolling cylinder in the rotating process of the film rolling cylinder and rotate to a second state along with the film rolling cylinder, so that the fixing process of the film rolling cylinder on the driving shaft is completed.

2. The method for dismounting the agricultural film rolling drum and the driving shaft according to claim 1, further comprising the following steps:

(5) in the process of winding the agricultural film to the film winding drum, the driving shaft is rotated in the locking direction.

3. The method for dismounting the agricultural film rolling drum and the driving shaft according to claim 1, further comprising the following steps:

(6) before the film winding drum is detached from the driving shaft, the driving shaft is rotated in the reverse direction of the locking direction, and the plate bodies in the respective openings are rotated from the second state to the first state.

4. The method for assembling and disassembling an agricultural film roll and a driving shaft according to claim 1, wherein the plate body is arranged in parallel to an axial direction of the driving shaft.

5. The method for assembling and disassembling an agricultural film roll and a driving shaft according to claim 1, wherein the openings are distributed at intervals in the axial direction of the driving shaft and are also distributed at intervals in the circumferential direction of the driving shaft.

6. The method for assembling and disassembling an agricultural film roll and a driving shaft according to claim 1, wherein the openings are distributed on the driving shaft along a spiral direction.

7. The method of claim 5 or 6, wherein the plate is located in the top opening of the drive shaft and has a pivot axis that is offset from the center of gravity of the plate.

8. The method of claim 5 or 6, wherein the plate is disposed in the opening at the bottom of the drive shaft and has a rotation axis that is offset from the center of gravity of the plate.

9. The method for assembling and disassembling an agricultural film roll and a driving shaft according to claim 5 or 6, wherein a first end or a second end of a plate body located in an opening at a side portion of the driving shaft is connected with the driving shaft at the opening through a spring, and the plate body is limited to a first state when the spring is in an original length state.

10. The method for assembling and disassembling an agricultural film roll and a driving shaft according to claim 1, wherein a rotating shaft of the plate body is fixed on the driving shaft at the opening.

Technical Field

The invention relates to a method for disassembling and assembling an agricultural film rolling drum and a driving shaft, and belongs to the technical field of agricultural film rolling.

Background

Need use the rolling machine to convolute on the roll membrane section of thick bamboo in order to facilitate transportation and use after the agricultural film production shaping, be provided with the drive shaft that can suit a roll membrane section of thick bamboo on the roll membrane machine, fix a roll membrane section of thick bamboo on the drive shaft during production, make a roll membrane section of thick bamboo and drive shaft static relatively, the drive shaft rotates and will drive a roll membrane section of thick bamboo and rotate and make the agricultural film convolute on a roll membrane section of thick bamboo. When the agricultural film wound on the film winding drum reaches the set winding diameter, the film winding drum wound with the agricultural film on the driving shaft is taken down and replaced by the empty film winding drum, so that the agricultural film winding operation is continued. The most of the driving shafts used at present adopt an inflatable shaft, and the inflatable shaft is a shaft which is inflated by high pressure and then partially expanded on the surface, and the surface of the inflatable shaft is rapidly retracted after being deflated. When the film rolling barrel and the inflatable shaft need to be locked, the operation can be finished only by inflating the air nozzle on the inflatable shaft, and when the film rolling barrel needs to be released for discharging, the sliding air core on the air nozzle is pressed by hands to deflate.

At present, inflatable shaft structures on the market are various, but all the structures are complex, the structures such as a shaft core, an inflatable shaft inner ring, an inflatable shaft outer ring and a friction block are needed, the processing difficulty is high, the production cost is improved, and in addition, a high-pressure air source needs to be consumed. The invention aims to provide a novel method for assembling and disassembling an agricultural film rolling drum and a driving shaft to solve the problems.

The above description is included in the technical recognition scope of the inventors, and does not necessarily constitute the prior art.

Disclosure of Invention

The invention provides a method for disassembling and assembling an agricultural film rolling cylinder and a driving shaft, aiming at solving the problems in the prior art, the operation is convenient, and the radial distance between the first end of the plate body and the central shaft of the driving shaft is gradually increased in the rotating process of the plate body, so that the film rolling cylinder can be tightly expanded on the driving shaft.

The invention adopts the following technical scheme to realize the purpose:

a method for disassembling and assembling an agricultural film rolling drum and a driving shaft comprises the following steps:

(1) providing a driving shaft with a plurality of openings on the circumferential surface, arranging a plate body capable of rotating around the axial direction of the driving shaft in the openings, enabling the rotating shaft of the plate body to deviate from the central shaft of the driving shaft, extending a first end of the plate body out of the openings, and positioning a second end of the plate body in the openings;

the plate body reaches a first state and a second state in the process of rotating around the rotating shaft of the plate body, the radial distance between the central shaft of the driving shaft and the first end of the plate body is D1 in the first state, the radial distance between the central shaft of the driving shaft and the first end of the plate body is D2 in the second state, D2 is greater than D1, and D1 is not smaller than the inner diameter of the film winding barrel;

(2) setting the direction of the plate body rotating from the first state to the second state as a locking direction, so that the plate body in each opening can rotate from the first state to the second state along the same locking direction;

(3) sleeving the film winding drum on the driving shaft when the plate body in each opening is in a first state;

(4) the film rolling cylinder rotates along the locking direction relative to the driving shaft, and the first ends of the plate bodies are kept in contact with the inner wall of the film rolling cylinder in the rotating process of the film rolling cylinder and rotate to a second state along with the film rolling cylinder, so that the fixing process of the film rolling cylinder on the driving shaft is completed.

Further, the method for disassembling and assembling the agricultural film rolling drum and the driving shaft further comprises the following steps:

(5) in the process of winding the agricultural film to the film winding drum, the driving shaft is rotated in the locking direction.

Further, the method for disassembling and assembling the agricultural film rolling drum and the driving shaft further comprises the following steps:

(6) before the film winding drum is detached from the driving shaft, the driving shaft is rotated in the reverse direction of the locking direction, and the plate bodies in the respective openings are rotated from the second state to the first state.

Preferably, the plate body is arranged parallel to the axial direction of the drive shaft.

Optionally, the openings are spaced apart in the axial direction of the drive shaft and are also spaced apart in the circumferential direction of the drive shaft.

Alternatively, the openings are distributed over the drive shaft in a helical direction.

Optionally, the plate body is positioned within the top opening of the drive shaft with its axis of rotation offset upwardly from the center of gravity of the plate body.

Optionally, the plate body is positioned within the opening at the bottom of the drive shaft with its axis of rotation offset upward from the center of gravity of the plate body.

Optionally, the plate body located in the opening at the side of the driving shaft is connected with the driving shaft at the opening at a first end or a second end through a spring, and the plate body is limited in a first state when the spring is in an original length state.

Optionally, the rotating shaft of the plate body is fixed on the driving shaft at the opening.

The beneficial effects of the invention include but are not limited to:

according to the method for disassembling and assembling the agricultural film rolling drum and the driving shaft, the manufacturing cost of the driving shaft is low, the operation is convenient, the opening is formed in the pipe wall of the driving shaft, the plate body is arranged at the opening, the plate body can rotate along with the agricultural film rolling drum by reasonably arranging the positions of the plate body and the rotating shaft, the radial distance between the first end of the plate body and the central shaft of the driving shaft is gradually increased in the rotating process of the plate body, the outer diameter of the driving shaft is expanded, and the agricultural film rolling drum is expanded on the driving shaft; and the reasonable distribution opening is in the epaxial position of drive, makes a roll up membrane section of thick bamboo concentric expanding tightly on the drive shaft, ensures that the normal stable rolling of plastic sheeting for farm use is to a roll up membrane section of thick bamboo.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

fig. 1 is a schematic view of a drive shaft involved in the present invention;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a cross-sectional view taken along line C-C of FIG. 2;

FIG. 4 is an enlarged view of the portion D in FIG. 3;

fig. 5 is a schematic structural view of the plate body at the top opening (the plate body is in a first state);

fig. 6 is a schematic structural view of the plate body at the top opening (the plate body is in a second state);

FIG. 7 is a schematic view of the plate and the film-winding drum at the top opening in the first state;

FIG. 8 is a schematic view of the plate and the film-winding drum at the top opening in the second state;

FIG. 9 is a schematic view of a plate body structure at the bottom opening;

FIG. 10 is a schematic view of a plate body at the side opening;

in the figure, 100, the drive shaft; 210. a plate body; 220. a rotating shaft; 310. the top is open; 320. the bottom is open; 330. a side opening; 400. a spring; 500. an ear plate; 600. and (4) rolling the film cylinder.

Detailed Description

In order to clearly explain the technical features of the present invention, the following detailed description of the present invention is provided with reference to the accompanying drawings.

It should be noted that in the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those described herein. Therefore, the scope of the invention is not limited by the specific embodiments disclosed below.

The invention provides a method for disassembling and assembling an agricultural film rolling drum and a driving shaft, which comprises the following steps:

(1) as shown in fig. 1 to 3, a driving shaft 100 having a plurality of openings formed in a circumferential surface thereof is provided, a plate body 210 rotatable about an axial direction of the driving shaft 100 is disposed in the openings, and a rotation axis of the plate body 210 is offset from a central axis of the driving shaft 100 to form an eccentric rotation state with respect to the driving shaft 100; a first end of the plate body 210 extends out of the opening, and a second end of the plate body 210 is located in the opening;

since the rotating shaft 220 is offset from the central axis of the driving shaft 100, during the rotation of the plate body 210 around the rotating shaft 220, the radial distance from the first end of the plate body 210 to the central axis of the driving shaft 100 (the radial direction refers to the radial direction of the driving shaft 100) will change, so that the plate body 210 reaches a first state and a second state during the rotation around the rotating shaft thereof, the radial distance from the central axis of the driving shaft 100 to the first end of the plate body 210 in the first state is D1 (as shown in fig. 5), the radial distance from the central axis of the driving shaft 100 to the first end of the plate body 210 in the second state is D2 (as shown in fig. 6), D2 > D1, and D1 is not smaller than the inner diameter of the film rolling cylinder, and is usually equal to or slightly larger than the inner diameter of the film rolling cylinder 600;

(2) setting the direction of the plate body 210 rotating from the first state to the second state as the locking direction, so that the plate body 210 in each opening can rotate from the first state to the second state along the same locking direction, and ensuring that the plate body 210 in each opening can expand tightly with the film winding drum 600;

(3) when the plate body 210 in each opening is in the first state, the film rolling cylinder is sleeved on the driving shaft 100, and the first end of the plate body 210 is tightly abutted against the inner wall of the film rolling cylinder 600 or even slightly jacked up the inner wall of the film rolling cylinder 600;

(4) the film winding tube 600 for winding the agricultural film is a paper tube, and can generate certain deformation, so that in the process that the film winding tube rotates along the locking direction relative to the driving shaft, the first end of each plate body 210 keeps in contact with the inner wall of the film winding tube and rotates along with the film winding tube, and the plate bodies 210 are driven to rotate around the rotating shafts 220 of the plate bodies from a first state (shown in fig. 5) to a second state (shown in fig. 6); in the rotating process of the plate body 210, the radial distance between the first end of the plate body 210 and the central axis of the driving shaft 100 is gradually increased, so that the first end of the plate body 210 is tightly pressed against the inner wall of the film winding drum 600, the outer diameter of the driving shaft is expanded, the purpose of expanding the film winding drum 600 is achieved, and the fixing process of the film winding drum on the driving shaft 100 is completed;

further, the method for disassembling and assembling the agricultural film rolling drum and the driving shaft further comprises the following steps:

(5) in the process of winding the agricultural film to the film winding drum, the driving shaft 100 is rotated in the locking direction. Therefore, in the process of winding the agricultural film, the plate body 210 is always kept in the second state, and the film winding barrel is ensured to be expanded on the driving shaft 100.

Furthermore, the method for disassembling and assembling the agricultural film rolling drum and the driving shaft further comprises the following steps:

(6) before the film roll is removed from the drive shaft 100, the drive shaft 100 is rotated in the reverse direction of the locking direction, and the plate bodies 210 in the respective openings are rotated from the second state to the first state. Therefore, the first end of the plate 210 gradually gets away from the inner wall of the film winding drum in the process of rotating along with the film winding drum, and the film winding drum can be smoothly detached from the driving shaft 100.

In a preferred embodiment, the plate body 210 is disposed parallel to the axial direction of the driving shaft 100 such that the first end of the plate body 210 is in sufficient contact with the inner wall of the film winding drum.

In order to keep the film winding drum 600 concentric with the drive shaft, the openings are spaced apart in the axial direction of the drive shaft 100 and also in the circumferential direction of the drive shaft 100. Therefore, the film rolling barrel 600 can be uniformly supported by the plate body 210 on the driving shaft in the operation process, and the agricultural film can be normally and stably rolled on the film rolling barrel 600.

Further, the respective openings are distributed in a spiral direction on the drive shaft 100.

Specifically, as shown in fig. 1 and 5, the plate body 210, which is located in the opening at the top of the driving shaft, has a rotating shaft 220 that is upwardly offset from the center of gravity of the plate body 210. In this way, the plate body 210 can be autonomously maintained in the vertical state (first state) by gravity.

As shown in fig. 1 and 9, the plate body 210 located in the bottom opening of the driving shaft 100 has the rotating shaft 220 upwardly deviated from the center of gravity of the plate body, and the plate body 210 will be maintained in the vertical state (first state) by gravity.

As shown in fig. 1 and 10, the plate 210 located in the opening 330 on the side of the drive shaft 100 is difficult to maintain in the first state in the autonomous state, and requires an external force. Accordingly, the first or second end of the plate 210 is connected to the driving shaft 100 at the opening by the spring 400, and the plate 210 is restricted to the first state in the original length state of the spring 400. The plate 210 reaches the second state during the counterclockwise rotation, so that the film winding drum 600 is tightly wound on the driving shaft 100.

Alternatively, the rotation shaft 220 of the plate body 210 is fixed to the driving shaft 100 at the opening.

It is understood that the rotation shaft 220 functions to provide a rotation shaft 220 of the plate body 210, and the rotation shaft 220 may be fixedly connected with the plate body 210 and then rotatably connected with the driving shaft 100; or the rotating shaft 220 is fixed on the driving shaft 100, and the rotating shaft 220 is rotatably connected with the plate body 210.

The drive shaft 100 may be of solid or hollow tubular construction. In order to facilitate the connection of the shaft 220 to the drive shaft when a tubular structure is used, the ear plate 500 is usually disposed in the opening, and the shaft 220 is mounted on the ear plate 500.

In addition, only a part of the structure of the driving shaft is shown in the drawings, and it can be understood that a coupling is further disposed at the end of the driving shaft to be in transmission connection with the driving mechanism, and the driving shaft 100 is driven by the driving mechanism to make a rotational motion.

In the description of the present invention, it is to be understood that the terms "central," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like are used in the indicated orientations and positional relationships based on the drawings for ease of description and simplicity of description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The above-described embodiments should not be construed as limiting the scope of the invention, and any alternative modifications or alterations to the embodiments of the present invention will be apparent to those skilled in the art.

The present invention is not described in detail, but is known to those skilled in the art.