Active telescopic roller type high density bale press

Abstract

The present application belongs to the field of forage grass machinery technology equipment, and particularly relates to a high-density round baler with active telescopic roller. The high-density round baler with active telescopic roller comprises a bunker, a conveying chain plate, a fixed guide roller, a telescopic conveying belt, a driving connecting rod, an active telescopic roller, a baling component, a net cutting knife, a net roller, a net roll, a floating roller and a side wall. The baling component comprises a fixed bunker and a movable bunker, and the telescopic power roller at the end of the telescopic conveying belt can be deeply inserted into the baling bunker. The present application can continuously regulate the density of the grass bale during the whole baling process. The clamping feeding technology can improve the compression density of the forage grass before entering the baling chamber, accelerate the formation of the grass core in the early stage of the forage grass baling, and in the middle and late stages, is beneficial to the baling of the grass bale to the feeding forage grass, further improves the operation efficiency and operation quality of the device, optimizes the whole process control grass bale density operation process, and can greatly improve the uniformity of the grass bale density and the baling quality.

Description

Technical Field

[0001] This invention belongs to the field of forage machinery and equipment, specifically relating to an active telescopic roller type high-density round baler. Background Technology

[0002] Round balers, as core equipment for straw and forage collection and processing in modern agriculture, can improve the efficiency of harvesting, storing, and utilizing forage or agricultural waste, and reduce mechanization costs. They hold an important position in the agricultural harvesting field, and their operation quality directly affects the transportation efficiency and storage stability of bales. Existing steel roller round balers have fixed baling roller positions, which can only effectively compact the bales when the forage bin is full. They cannot effectively compact the forage fed in at the beginning of bale formation, resulting in a significantly lower density in the inner layer of the bale than in the outer layer. This leads to a non-uniform density distribution of "loose inside and tight outside" in the final bale, limiting the improvement of the overall density and bale quality.

[0003] Figure 2 The typical forage motion image obtained from a rotary test conducted to reference the motion parameters of a round baler represents the typical forage motion in the initial stage of baling, i.e., the rotary motion of the forage within the baling chamber. This shows that in the initial stage of baling, the fed forage moves along the abc curve under the drive of the baling components. The abc segment, in particular, is mainly characterized by natural falling under gravity and being tossed and scattered by centrifugal force, further dispersing the forage. Therefore, limiting this tossing and dispersing effect, and ensuring the forage moves along the ade curve, is key to increasing the core density. Summary of the Invention

[0004] This invention addresses the shortcomings of existing technologies by providing an active telescopic roller-type high-density round baler, which can limit the throwing and dispersing effect of loose forage in the early stage of baling, thereby enabling rapid formation of the forage core and increasing the density of the forage core; in the middle and later stages, it can continue to control the density of the bale, improve the local density uniformity of the bale, and increase the overall density of the bale.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: An active telescopic roller type high-density round baler includes a hopper, a conveyor chain plate, a fixed guide roller, a telescopic conveyor belt, a drive linkage, an active telescopic roller, a baling component, a wire cutter, a wire roller, a wire roll, a floating roller, and a side wall.

[0006] The baling component includes a fixed bin and a movable bin; the baling rollers are arranged in a ring around the movable bin and the fixed bin, and the baling rollers can rotate around their own axis under the action of external power and transmission, and restrict the movement of feed within the baling bin area formed by their inner surfaces; The baling roller has a feeding inlet on the lower left of the fixed compartment, so that feed can enter the baling component through the feeding inlet; The curves of the contact portions of the fixed compartment sidewall and the movable compartment sidewall are matched, so that the bundled compartment can be completely sealed after closing. The sidewalls, fixed compartment sidewalls, and movable compartment sidewalls are symmetrically arranged on both sides of the bundling roller, and the structures on them are also arranged in a mirror-symmetrical manner with respect to the bundling roller, including floating roller grooves, telescopic roller smooth grooves, and telescopic roller bending grooves, etc. The hopper, sidewalls, and fixed hopper sidewalls are fixed components, and also serve as a frame to support other components; the fixed hopper and the movable hopper are hinged at the hinge point, and can rotate around the hinge point under the action of external power to realize the opening and closing of the hopper; The drive linkage connects the telescopic power roller and the active telescopic roller, and drives the active telescopic roller to rotate around the telescopic power roller; the first telescopic power always provides the floating roller with up and down floating power and keeps it in a taut state; the second telescopic power always provides the telescopic power to the telescopic power roller and keeps it in a taut state.

[0007] The telescopic conveyor belt can rotate counterclockwise under the drive of a rotating telescopic power roller. The lower surface of the telescopic conveyor belt and the upper surface of the conveyor chain plate together support and transport the feed. The telescopic conveyor belt is arranged inclined downwards, and the conveyor chain plate is arranged horizontally. The distance between the lower surface of the telescopic conveyor belt and the upper surface of the conveyor chain plate gradually decreases. This allows for a certain degree of pre-compression of the feed while supporting and transporting it, and continuous pressure and shape maintenance during the transport process. The included angle α between the lower surface of the telescopic conveyor belt and the upper surface of the conveyor chain plate can be adjusted to meet the pre-compression requirements of feed with different types, moisture contents, and cutting lengths.

[0008] The drive link includes a spindle, a swing drive device, and a link arm; The active telescopic roller includes a roller motor and a fixed end. The fixed end is hinged to one end of the connecting rod arm, so that the active telescopic roller can rotate independently and actively. The telescopic power roller has a hollow tubular structure with a core shaft coaxially disposed inside it; one end of the connecting rod arm is fixedly connected to the core shaft; the swing drive device is connected to the core shaft and is used to drive the core shaft and the driving connecting rod to swing around the axis of the telescopic power roller by an angle β. The drive linkage has a pressure detection function, which can collect the pressure applied to the bale by the active telescopic roller in real time. The real-time bale density can be adjusted by adjusting the contact pressure between the active telescopic roller and the bale. The guide plate has a raised structure on the side facing the wire roll and a smooth surface, which allows the wire to pass smoothly through the guide plate, the wire roller, the wire cutter and the upper surface of the active telescopic roller, and then smoothly enter the space between the active telescopic roller and the wire bale. The diameter of the active telescopic roller is D, and the diameter of the telescopic power roller is d, which must satisfy D>d. The diameter of the telescopic power roller is equal to the diameter of the conveying power roller. The clockwise rotation speed of the active telescopic roller is n1, the counterclockwise rotation speed of the telescopic power roller is n2, the clockwise rotation speed of the baling roller is n3, and the clockwise rotation speed of the conveying power roller is n4, which must satisfy n1=n3>n2>n4 to prevent abnormal feed supply or even blockage at various stages of bale formation. At the same time, since the telescopic power roller is slightly faster than the conveying power roller, it will have a certain degree of differential shaping effect on the feed during the feeding process, ensuring the uniformity of feed supply and satisfying n2=1.1~2n4.

[0009] The fixed guide rollers consist of three fixed guide rollers, two of which are horizontally arranged at the bottom and one is centrally arranged at the top, forming an overall isosceles triangle layout. The center height between the upper and lower rollers is h0, which is a fixed value. The floating rollers consist of two floating guide rollers, which are horizontally arranged and move synchronously up or down in the floating roller groove via hydraulic cylinders to ensure that the telescopic conveyor belt is always taut. This also allows the entire telescopic conveyor belt to complete long-distance movement within a small space. The center height between the lower rollers of the floating rollers and the fixed guide rollers is h1, which must satisfy h1 > h0.

[0010] The conveyor chain plate is installed in conjunction with the front side plate of the hopper. At the same time, the conveyor roller is installed on the left side of the front side plate of the hopper to ensure that the feed in the hopper can be completely conveyed and eliminate dead corners in the conveying process. The telescopic conveyor belt is installed in conjunction with the rear side plate of the hopper. At the same time, the telescopic roller is installed on the left side of the rear side plate of the hopper to ensure that the feed in the hopper can smoothly enter between the lower surface of the telescopic conveyor belt and the upper surface of the conveyor chain plate, so as to be stably conveyed to the baling bin.

[0011] The entire bale-making process involves the following stages: initial feeding stage, straw core formation stage, bale growth stage, bale forming stage, netting stage, and unbaleing stage.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The active telescopic roller designed in this invention coordinates conveying and baling. By setting the active telescopic roller on the side of the telescopic conveyor belt, the complexity of the baling components in the baling bin is reduced. It continuously controls the density of the bale throughout the baling process, forcibly interfering with the loose forage in the early stage of baling to make the grass core form quickly. In the middle stage, it is always in direct contact with the bale to further enhance the bale density. In the later stage, it smoothly sends the net into the baling chamber to complete the netting operation, which is easy to control and operate.

[0013] 2. The clamping and feeding technology designed in this invention can promote the compression density of feed before it enters the baling chamber, accelerate the formation of the straw core in the early stage of baling, and reduce the height of the fed feed in the middle and later stages, which is conducive to the bale carrying the fed feed into the bale, and further improve the operating efficiency and quality of the device.

[0014] 3. The whole-process control of bale density proposed in this invention changes the pressure application method from "passive pressure application in a fixed bin" to "active pressure promotion throughout the bale process", which can greatly improve the uniformity of bale density, improve bale formation effect and bale quality. Attached Figure Description

[0015] Figure 1 This is a schematic diagram showing the overall layout of the components of the present invention; Figure 2 Typical feed motion images obtained from slewing tests conducted with reference to the motion parameters of a round baler; Figure 3 This is a schematic diagram of the structure of each component of the present invention during the initial feeding stage; Figure 4 This is a schematic diagram of the structure of each component of the present invention during the grass core forming stage; Figure 5 A schematic diagram of the structure of each component of the present invention during the bale growth stage; Figure 6 This is a schematic diagram of the structure of each component of the present invention during the bale forming stage; Figure 7 This is a schematic diagram of the structure of each component of the present invention during the web-wrapping stage; Figure 8 This is a schematic diagram of the structure of each component of the present invention during the unbundling stage; Figure 9 This is a three-dimensional schematic diagram of the silo and sidewalls of the present invention; Figure 10 This is a schematic diagram of the layout of the drive linkage and the active telescopic roller of the present invention.

[0016] In the figure, the attached reference numerals are... Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments. See also... Figures 3-10 : An active telescopic roller type high-density round baler includes a hopper 1, a conveyor chain plate 2, a fixed guide roller 3, a telescopic conveyor belt 4, a drive linkage 5, an active telescopic roller 6, a baling component 7, a wire cutter 8, a wire roller 9, a wire roll 10, a floating roller 11, and a side wall 15.

[0018] The baling component 7 includes a fixed bin 701 and a movable bin 702; the baling roller 703 is arranged in a ring around the movable bin 701 and the fixed bin 702, and the baling roller 703 can rotate around its own axis under the action of external power and transmission, and restrict the movement of feed in the area of ​​the baling bin 705 formed by its inner surface. The baling roller 703 has a feeding inlet 16 at the lower left of the fixed bin 702, so that feed can enter the baling component 7 through the feeding inlet 16; The contact portion of the fixed compartment sidewall 1505 and the movable compartment sidewall 1504 is curved to match, so that the bundled compartment 705 can be completely sealed after the compartment is closed. The side wall 15, the fixed compartment side wall 1505 and the movable compartment side wall 1504 are symmetrically arranged on both sides of the bundling roller 703, and the structures on them are also arranged in a mirror symmetrical arrangement about the bundling roller 703, including the floating roller groove 1501, the telescopic roller smooth groove 1502 and the telescopic roller bending groove 1503, etc. The hopper 1, side wall 15 and fixed hopper side wall 1505 are fixed components, and also serve as a frame to support other components; the fixed hopper 701 and the movable hopper 702 are hinged at the hinge point 704, and can rotate around the hinge point 704 under the action of external power to realize the opening and closing of the hopper; The drive linkage 5 connects the telescopic power roller 401 and the active telescopic roller 6, and drives the active telescopic roller 6 to rotate around the telescopic power roller 401; the first telescopic power always provides up and down floating power to the floating roller 11 and keeps it in a taut state; the second telescopic power always provides telescopic power to the telescopic power roller 401 and keeps it in a taut state, and the telescopic power roller 401 at the end of the telescopic conveyor belt 4 can penetrate deep into the bundling bin 705.

[0019] like Figure 3 As shown, the fixed guide roller 3 includes three fixed guide rollers, two of which are arranged horizontally at the bottom and one is arranged centrally at the top, forming an overall isosceles triangle layout. The center height between the upper and lower rollers is h0, which is a fixed value. The floating roller 11 includes two floating guide rollers, which are arranged horizontally and move up or down synchronously to ensure that the telescopic conveyor belt 4 is always in a taut state, while enabling the long-distance movement of the entire telescopic conveyor belt 4 to be completed in a small space. The center height between the floating roller 11 and the lower roller of the fixed guide roller 3 is h1, which must satisfy h1>h0.

[0020] like Figure 4As shown, the telescopic conveyor belt 4 can rotate counterclockwise under the drive of the rotating telescopic power roller 401. The lower surface of the telescopic conveyor belt 4 and the upper surface of the conveyor chain plate 2 together support the feed for conveying. The telescopic conveyor belt 4 is arranged inclined downwards, and the conveyor chain plate 2 is arranged horizontally. The distance between the lower surface of the telescopic conveyor belt 4 and the upper surface of the conveyor chain plate 2 gradually decreases, which can pre-compress the feed to a certain extent while supporting and conveying it, and continuously maintain pressure and shape during the conveying process. The included angle α between the lower surface of the telescopic conveyor belt 4 and the upper surface of the conveyor chain plate 2 can be adjusted to meet the pre-compression requirements of feed with different types, moisture content, and cutting lengths. The guide plate 101 has a raised structure on the side facing the net roll 10 and has a smooth surface, which allows the net to pass smoothly through the guide plate 101, the net roller 9, the net cutter 8 and the upper surface of the active telescopic roller 6, and then smoothly enter the space between the active telescopic roller 6 and the bale 13. like Figure 5 As shown, the diameter of the active telescopic roller 6 is D, and the diameter of the telescopic power roller 401 is d, which must satisfy D>d. The diameter of the telescopic power roller 401 is equal to the diameter of the conveying power roller 201. The clockwise rotation speed of the active telescopic roller 6 is n1, the counterclockwise rotation speed of the telescopic power roller 401 is n2, the clockwise rotation speed of the bundling roller 703 is n3, and the clockwise rotation speed of the conveying power roller 201 is n4. The speed of n1=n3>n2>n4 must be satisfied to prevent abnormal feeding of feed at various stages of bundling of the hay bales 13, or even blockage. At the same time, since the telescopic power roller 401 is slightly faster than the conveying power roller 201, it will have a certain degree of differential speed shaping effect on the feed during the feeding process, ensuring the uniformity of feed feeding, satisfying n2=1.1~2n4.

[0021] like Figure 5 and Figure 6 As shown, the conveyor chain plate 2 is installed in conjunction with the front side plate 101 of the hopper. At the same time, the conveyor roller 202 is installed on the left side of the front side plate 101 of the hopper to ensure that the feed in the hopper 1 can be completely conveyed and eliminate conveying dead corners. The telescopic conveyor belt 4 is installed in conjunction with the rear side plate 102 of the hopper. At the same time, the telescopic roller is installed on the left side of the rear side plate 102 of the hopper to ensure that the feed in the hopper 1 can smoothly enter between the lower surface of the telescopic conveyor belt 4 and the upper surface of the conveyor chain plate 2, so as to be stably conveyed to the baling bin 705.

[0022] like Figure 10As shown, the telescopic power roller 401 adopts a hollow tube structure, and the spindle 501 is coaxially arranged in the inner cavity of the telescopic power roller 401, allowing them to rotate relative to each other. One end of the drive linkage 5 is fixedly connected to the end of the spindle 501. The swing drive device 502 can be a servo motor for precise control, and its power output end is coaxially connected to the spindle 501. When the swing drive device 502 is working, it can drive the spindle 501 together with the drive linkage 5 fixed thereon to swing around the axis of the telescopic power roller 401 by an angle β. Through the above structure, while the telescopic power roller 401 continuously rotates to drive the telescopic conveyor belt 4, the drive linkage 5 does not rotate accordingly, but is only controlled by the swing drive device 502 to perform the required swing. The active telescopic roller 6 adopts a roller structure with a built-in drive motor, and the rotating roller 601 can rotate independently around its own axis. The fixed end 602 of the active telescopic roller 6 is hinged to the other end of the drive linkage 5. This structure ensures that when the active telescopic roller 6 performs rotational compaction independently, its rotational motion is not transmitted to the drive linkage 5, thereby avoiding motion interference.

[0023] Finally, it should be noted that the above is only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing specific embodiments, those skilled in the art should understand that modifications to the technical solutions described in the foregoing embodiments or equivalent substitutions of some technical features and structures are all within the spirit and scope of the various embodiments of the present invention.

Claims

1. An active telescopic roller type high-density round baler, characterized in that: The system includes a hopper, conveyor chain, fixed guide rollers, a telescopic conveyor belt, a drive linkage, an active telescopic roller, and a floating roller. The telescopic conveyor belt rotates counterclockwise under the drive of the rotating telescopic power roller. The lower surface of the telescopic conveyor belt and the upper surface of the conveyor chain together clamp and convey the feed. The telescopic conveyor belt is inclined downwards with an adjustable inclination angle, while the conveyor chain is horizontally arranged. The distance between the lower surface of the telescopic conveyor belt and the upper surface of the conveyor chain gradually decreases, pre-compressing the feed to a certain extent while clamping and conveying it. The drive linkage connects the telescopic power roller and the active telescopic roller, and drives the active telescopic roller to rotate around the telescopic power roller. The first telescopic power provides vertical floating force to the floating roller and keeps it taut. The second telescopic power provides telescopic power to the telescopic power roller and keeps it taut. The telescopic power roller at the end of the telescopic conveyor belt can penetrate deep into the baling bin. The drive linkage includes a spindle, a swing drive device, and a connecting arm. The active telescopic roller includes a rotating roller and a fixed end. The fixed end is hinged to one end of the connecting rod arm, allowing the active telescopic roller to rotate independently and actively, and to rotate around the telescopic power roller by an angle β to adapt to the pressure requirements of the bales at different bale formation stages. The telescopic power roller has a hollow tubular structure with a core shaft coaxially disposed inside. One end of the connecting rod arm is fixedly connected to the core shaft. The swing drive device is connected to the core shaft and is used to drive the core shaft and the drive connecting rod to swing around the axis of the telescopic power roller by an angle β. The drive connecting rod has a pressure detection function, which can collect the pressure applied to the bales by the active telescopic roller in real time, and adjust the real-time bale density by adjusting the contact pressure between the active telescopic roller and the bales. The diameter of the active telescopic roller is D, and the diameter of the telescopic power roller is d, which must satisfy D>d. The diameter of the telescopic power roller is equal to the diameter of the conveying power roller. The clockwise rotation speed of the active telescopic roller is n1, the counterclockwise rotation speed of the telescopic power roller is n2, the clockwise rotation speed of the bale roller is n3, and the clockwise rotation speed of the conveying power roller is n4, which must satisfy n1= n3> n2> n4, to prevent feed supply blockage when the hay bales are bundled.

2. The round baler according to claim 1, characterized in that: The rotational speeds of the telescopic power roller and the conveying power roller are related as n2 = 1.1n4 ~ 2n4 to ensure the uniformity of feed supply.

3. The round baler according to claim 1, characterized in that: The device includes a baling component, which comprises a fixed compartment and a movable compartment; baling rollers are evenly arranged in a ring around the movable and fixed compartments; the baling rollers have a feeding inlet on the lower left of the fixed compartment, allowing feed to enter the baling component through the feeding inlet; the fixed compartment and the movable compartment are hinged at the hinge point, enabling the compartment to be opened and closed.

4. The round baler according to claim 1, characterized in that: It includes a guide plate, which has a raised structure on the side facing the wire roll and a smooth surface, allowing the wire to pass smoothly through the guide plate, the wire roller, the wire cutter and the upper surface of the active telescopic roller, and then smoothly enter the space between the active telescopic roller and the wire bales.

5. The round baler according to claim 1, characterized in that: The fixed guide rollers consist of three fixed guide rollers, two of which are horizontally arranged at the bottom and one is centrally arranged at the top, forming an overall isosceles triangle layout. The center height between the upper and lower rollers is h0. The floating rollers consist of two floating guide rollers, which are horizontally arranged and move synchronously up or down in the floating roller groove via hydraulic cylinders. The center height between the floating rollers and the lower roller of the fixed guide rollers is h1, which must satisfy h1>h0.

6. The round baler according to claim 1, characterized in that: The conveyor chain plate is installed in conjunction with the front side plate of the hopper, and the conveyor roller is installed on the left side of the front side plate of the hopper to ensure that the feed in the hopper can be completely conveyed and eliminate conveying dead corners; the telescopic conveyor belt is installed in conjunction with the rear side plate of the hopper, and the telescopic roller is installed on the left side of the rear side plate of the hopper to ensure that the feed in the hopper can smoothly enter between the lower surface of the telescopic conveyor belt and the upper surface of the conveyor chain plate, so as to be stably clamped and conveyed to the baling bin.

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