A new type of bale wrapping machine guide wheel buffer device

Abstract

A new type of round bale baler guide wheel buffer device, including curved link, slide buckle, guide wheel, protective chain and spring, one end of the curved link and the slide buckle are hinged to the same side of the pickup, the middle position of the curved link is provided with a slide column and is matched with the slide buckle, the other end of the curved link is provided with a guide wheel, the curved link is also provided with a hinged seat between the slide column and the guide wheel, the U-shaped ring at both ends of the spring is fixed, the U-shaped ring at one end is hinged to the hinged seat, and the U-shaped ring at the other end is hung to the protective chain. Through the connection of the U-shaped ring and the chain, this structure not only can adjust the number of hanging links through the chain, and the spring can also play a flexible stretching role in the working process of the machine, and the U-shaped ring will not fall off when the buffer amount is large or the working time is long due to the un-fixed grass amount in the working process of the machine.

Description

Technical Field

[0001] This utility model relates to the field of baling machine technology, specifically to a novel guide wheel buffer device for a round baler. Background Technology

[0002] The patent with publication number CN222869464U discloses "a buffer device for a guide wheel of a round baler". When the round baler is working, the picker teeth pick up the straw and transport it to the feeding part. The original guide wheel chain is connected to the spring through the spring plate. This structure can not only adjust the number of connected links of the chain, but also the spring can play a flexible extension and contraction role during the operation of the machine, and the machine can also play a buffer role during the picking process.

[0003] However, the amount of straw varies during machine operation, resulting in a large buffering amount. Furthermore, after prolonged operation, the spring clamp may become less secure due to machine vibration, leading to easy detachment and malfunction. This directly impacts the baler's efficiency and operational stability. This utility model presents a novel guide wheel buffer device for a round baler. Based on the original design, it further optimizes the product structure, significantly reducing production difficulty, facilitating maintenance and use, and improving machine efficiency and product quality. Utility Model Content

[0004] This utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the purpose of this utility model is to provide a novel guide wheel buffer device for a round baler, which adapts to controlling the even entry of straw into the machine, thereby improving work efficiency while enhancing its own operational stability.

[0005] This utility model is achieved through the following technical solution:

[0006] A novel guide wheel buffer device for a round baler includes a curved connecting rod, a sliding buckle, a guide wheel, a protective chain, and a spring. One end of the curved connecting rod and the sliding buckle are hinged to the same side of the pickup. A sliding post is provided at the middle position of the curved connecting rod and is configured to cooperate with the sliding buckle. The other end of the curved connecting rod is equipped with a guide wheel. A hinge seat is also provided on the curved connecting rod, located between the sliding post and the guide wheel. Both ends of the spring are fixed with U-shaped rings. One end of the U-shaped ring is hinged to the hinge seat, and the other end of the U-shaped ring is hooked to the protective chain. One end of the protective chain is hinged to the frame.

[0007] Preferably, the U-shaped ring fixed to one end of the spring is hinged to the hinge seat by bolts, and the U-shaped ring fixed to the other end of the spring is hooked to the protective chain by bolts and washers.

[0008] Preferably, the middle part of the slide column is smooth and can slide in the slide buckle, and the end of the slide column is provided with a thread. First, a washer is put in and then a nut is screwed in to the thread to axially limit the slide buckle.

[0009] Preferably, a hand lever is also welded onto the connecting rod.

[0010] Preferably, the initial distance between the spring teeth on the pickup and the guide wheel is set to be suitable for the amount of grass that the machine can pass through when it is moving smoothly.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model replaces the relatively troublesome method of adjusting the number of chain links by setting a spring between the original chain and the guide wheel to adjust the distance between the guide wheel and the spring tooth to adapt to different amounts of grass to be picked up. The spring can play a flexible extension and retraction role during the operation of the machine. When encountering a situation where the amount of grass is not fixed during the picking process, it can always rise and fall freely so that the grass is input into the machine with uniform frictional resistance within a suitable distance between the guide wheel and the spring tooth.

[0013] 2. This utility model connects to the chain via a U-shaped ring. This structure not only allows for adjustment of the number of connecting links via the chain, but also provides flexible extension and contraction during machine operation. Even when the amount of grass varies during machine operation, resulting in a large buffering amount or prolonged operation, the U-shaped ring will not fall off, thereby improving the stability of machine operation. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of the guide wheel buffer device for the novel round baler of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the U-shaped ring of this utility model;

[0017] Figure 3 for Figure 2 Side view.

[0018] Among them, the connecting rod 1, the sliding buckle 2, the guide wheel 3, the protective chain 4, the spring 5, the pickup 6, the spring tooth 601, the sliding column 7, the hinge seat 8, the U-shaped ring 9, the shaft hole 901, the hand lever 10, the pin 11, and the fixing pin 12. Detailed Implementation

[0019] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0020] The technical solution of this utility model will be further described below with reference to the accompanying drawings. Figure 1 A novel guide wheel buffer device for a round baler is shown, comprising a curved connecting rod 1, a sliding buckle 2, a guide wheel 3, a protective chain 4, and a spring 5. One end of the curved connecting rod 1 and the sliding buckle 2 are hinged to the same side of a pickup 6. The pickup 6 has spring teeth 601. To ensure that the curved connecting rod 1 moves only vertically, a sliding post 7 is provided at the middle position of the curved connecting rod 1 and cooperates with the sliding buckle 2. The other end of the curved connecting rod 1 is equipped with the guide wheel 3. A hinge seat 8 is also provided on the curved connecting rod 1, located between the sliding post 7 and the guide wheel 3. One end of the protective chain 4 is hinged to the frame. Both ends of the spring 5 are fixed with U-shaped rings 9. One end of the U-shaped ring 9 is hinged to the hinge seat 8, and the other end of the U-shaped ring 9 is hooked to the other end of the protective chain 4. By setting the spring 5 between the protective chain 4 and the guide wheel 3, the distance between the guide wheel 3 and the spring teeth 601 can be adjusted to accommodate different amounts of straw being picked up.

[0021] Spring 5 provides flexible extension and retraction during machine operation. When the baler's speed fluctuates, causing variations in the amount of straw fed, or when the amount of straw encountered during pickup is inconsistent, spring 5 can always rise and fall freely. This ensures that the straw is fed into the machine with uniform frictional resistance within a suitable distance between the guide wheel 3 and the spring teeth 601 on the pickup 6. Connected to the protective chain 4 via the U-ring 9, this structure not only allows adjustment of the number of connecting sections via the protective chain 4, but also provides flexible extension and retraction during machine operation. Even when the amount of straw is inconsistent, resulting in a large buffering amount, or after prolonged operation, the U-ring will not detach, thus adapting to and controlling the even distribution of straw into the machine. This improves machine efficiency while enhancing its operational stability.

[0022] To maintain the vertical extension and contraction of spring 5, a U-shaped ring 9 is used for limiting its position, such as... Figure 2 The two arms of the U-shaped ring 9 are coaxially provided with shaft holes 901 for the pin 11 to pass through. At this time, the U-shaped ring 9 fixed to one end of the spring 5 is hinged to the hinge seat 8 through the pin 11, and the pin 11 is axially limited by the fixing pin 12. The U-shaped ring 9 fixed to the other end of the spring 5 is hooked to the protective chain 4 through the pin 11, and the pin 11 is axially limited by the fixing pin 12.

[0023] As can be seen, the spring 5 is placed between the protective chain 4 and the guide wheel 3. Due to the flexible extension and contraction of the spring 5, the guide wheel 3 can enhance the small vertical displacement. In addition to this method, it is also envisioned to improve the connecting rod 1 installed with the guide wheel 3 to enhance the above effect. The middle part of the sliding column 7 is made smooth enough to allow it to slide freely in the sliding buckle 2. The end of the sliding column 7 is threaded. A washer is first put in and then a nut is screwed into the thread to axially limit the sliding buckle 2.

[0024] When it is necessary to manually adjust the initial distance between the guide wheel 3 and the spring tooth 601, manual control is performed by welding a hand lever 10 onto the connecting rod 1.

[0025] It is worth mentioning that when the baler's travel speed is irregular, it causes changes in the amount of straw fed in. Generally, excluding cases where the amount of straw fed in is small, the amount of straw that passes through when the machine is traveling steadily can be considered as the minimum amount of straw. The initial distance between the spring tooth 601 on the pickup 6 and the guide wheel 3 ( Figure 1 (d) Set the amount of straw that is suitable for the machine to pass through when it is moving smoothly. When the speed of the baler changes, the distance between the guide wheel 3 and the spring tooth 601 can be increased by the adjustment of the spring 5 to keep the straw receiving uniform frictional resistance.

[0026] The working principle of this utility model:

[0027] like Figure 1 This utility model includes a connecting rod 1, a sliding buckle 2, a guide wheel 3, a protective chain 4, and a spring 5. The two ends of the spring 5 are installed inside a U-shaped ring 9. When forage is fed into the pickup 6, the spring teeth 601 on the spring 5, together with the guide wheel 3, control the forage to enter the machine evenly, improving work efficiency. Because the added spring has low manufacturing costs, the machine can effectively adapt to changes in the amount of forage in the field, effectively improving work efficiency.

[0028] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A novel guide wheel buffer device for a round baler, comprising a curved connecting rod (1), a sliding buckle (2), a guide wheel (3), a protective chain (4), and a spring (5), wherein one end of the curved connecting rod (1) and the sliding buckle (2) are hinged to the same side of a pickup (6), a sliding post (7) is provided at the middle position of the curved connecting rod (1) and cooperates with the sliding buckle (2), a guide wheel (3) is installed at the other end of the curved connecting rod (1), a hinge seat (8) is also provided on the curved connecting rod (1) between the sliding post (7) and the guide wheel (3), and one end of the protective chain (4) is hinged to the frame, characterized in that: Both ends of the spring (5) are fixed with U-shaped rings (9), one end of which is hinged to the hinge seat (8), and the other end of which is hooked to the other end of the protective chain (4).

2. The novel guide wheel buffer device for a round baler according to claim 1, characterized in that: The two arms of the U-shaped ring (9) are coaxially provided with shaft holes (901) for the pin shaft (11) to pass through. The U-shaped ring (9) fixed to one end of the spring (5) is hinged to the hinge seat (8) through the pin shaft (11) and the pin shaft (11) is axially limited by the fixing pin (12). The U-shaped ring (9) fixed to the other end of the spring (5) is hooked to the protective chain (4) through the pin shaft (11) and the pin shaft (11) is axially limited by the fixing pin (12).

3. The novel guide wheel buffer device for a round baler according to claim 2, characterized in that: The middle part of the sliding column (7) is smooth and can slide in the sliding buckle (2). The end of the sliding column (7) is threaded. First, a washer is put in and then a nut is screwed into the thread to axially limit the sliding buckle (2).

4. The novel guide wheel buffer device for a round baler according to claim 3, characterized in that: A hand lever (10) is also welded onto the connecting rod (1).

5. The novel guide wheel buffer device for a round baler according to any one of claims 1-4, characterized in that: The initial distance between the tooth (601) on the pickup (6) and the guide wheel (3) is set to allow for the amount of grass to pass through when the machine is moving smoothly.

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