Low-noise agricultural machine chain with bent chain plates

Abstract

A low-noise agricultural machine chain with bent chain plates relates to the technical field of agricultural machine chains and comprises inner chain plates, bent outer chain plates, rollers, sleeves, pin shafts, noise reduction inserts and attached plates, and the two inner chain plates, the two sleeves and the two rollers form inner chain links; one bent outer chain plate, one attached plate and two pin shafts form an outer chain link, the inner chain links and the outer chain links are alternately connected to form an agricultural machine chain body, the pin shafts penetrate through the adjacent sleeves and are in clearance fit with the sleeves, noise reduction inserts are arranged between the rollers and the sleeves, and the attached plate is provided with a secondary accessory positioning mechanism. By arranging the bending chain plate, the surface area of the protruding structure can be increased, protection on the cross section of the pin shaft is effectively improved, and the cross section of the pin shaft is prevented from being abraded too early. And by arranging the noise reduction insert, the collision noise between the roller and the sleeve can be reduced. And by arranging the limiting plate, the second-level accessory can be limited while being connected, and the second-level accessory is prevented from shaking in the using process.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural machinery chains, and in particular to a low-noise agricultural machinery chain with a bent chain plate belt. Background Art

[0002] At present, in order to protect the pin end face from wear, the attached plate chain of agricultural machinery is Figure 4 As shown in the figure, a convex structure is provided in the middle of the chain plate. It has the following defects:

[0003] 1. The convex structure is relatively small in size and wears quickly, making it difficult to protect the pin for a long time.

[0004] 2. When the chain is running, the collision between the sleeve and the roller produces a lot of noise, which causes a lot of complaints from end users.

[0005] 3. The attachment plate lacks a stopper, causing the secondary attachment to wobble when mounted on the chain. (Note: The secondary attachment is a separate part and is not part of the chain.) Utility Model Content

[0006] The invention discloses a low-noise agricultural machinery chain with a bent chain plate belt, aiming to solve the problems 1-3 described in the prior art.

[0007] In order to achieve the above purpose, the technical solution of this novel invention is:

[0008] The cam is secured to the chassis and has two camshafts, each of which is secured to a position 400 meters tall and has a camshaft with two guide rails extending therefrom for locking the chassis in position.

[0009] Preferably, the middle portion of the bent outer link plate is bent to form a protruding structure, and two sides of the protruding structure form a planar structure. The distance B between the outer surface of the protruding structure and the outer surface of the planar structure is greater than the exposed amount A of the pin shaft.

[0010] Preferably, the protruding structure is trapezoidal in top view, and the intersection of the protruding structure and the planar structure forms a bending line perpendicular to the direction of the line connecting the centers of the holes of the bent outer link plates.

[0011] Preferably, the noise reduction insert is a cylindrical structure embedded in the inner surface of the roller, the inner surface of the cylindrical structure is clearance-matched with the sleeve, and the cylindrical structure is made of wear-resistant elastic material.

[0012] Preferably, the wear-resistant elastic material is engineering plastic, synthetic rubber or polyamide fiber material.

[0013] Preferably, the attachment plate includes a first connection part for connecting to the end of the pin shaft, the top end of the first connection part is bent outward to form a second connection part for connecting to the secondary accessory, the front and rear ends of the second connection part are integrally formed with limit plates parallel to each other, and a mounting hole is opened on the second connection part.

[0014] The beneficial effects of this new type of chain plate belt bending low noise agricultural machinery chain:

[0015] This new design utilizes a bent chain plate to increase the surface area of the protruding structure, effectively protecting the pin cross-section and preventing premature wear. A noise-reducing insert reduces collision noise between the roller and sleeve. A stop plate allows for simultaneous positioning of secondary accessories while they are connected, preventing them from shaking during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solution of the present invention, the following briefly introduces the drawings required for use in the embodiments, which constitute a part of the specification and are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation to the present invention.

[0017] Figure 1 This is a schematic diagram of the top view of the structure of the novel;

[0018] Figure 2 This is a front view structural diagram of the new model;

[0019] Figure 3 This is a partial cross-sectional structural diagram of the new model;

[0020] Figure 4 It is a schematic diagram of the top view of the existing agricultural machinery chain.

[0021] 1. Inner link plate; 2. Bent outer link plate; 21. Protruding structure; 22. Plane structure; 3. Roller; 4. Sleeve; 5. Pin; 6. Noise reduction insert; 7. Attached plate; 71. First connecting part; 72. Second connecting part; 73. Limiting plate; 8. Convex structure. DETAILED DESCRIPTION

[0022] The following will be combined with the accompanying drawings of the embodiments of the present invention to clearly and completely describe the technical solutions of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0023] The following embodiments may be understood as explaining a local structure of the present invention individually, or may be understood as explaining a larger structure of the present invention through a combination of multiple embodiments.

[0024] Example 1

[0025] A low-noise agricultural machinery chain with a bent chain plate, such as Figure 1-3 As shown, it includes an inner link plate 1, a bent outer link plate 2, a roller 3, a sleeve 4, a pin 5, a noise reduction insert 6, and an attached plate 7; Figure 1 As shown, two inner link plates 1 are arranged opposite to each other, and two sleeves 4 are connected between the two opposite inner link plates 1. The two ends of the two sleeves 4 are respectively interference fit with the corresponding inner link plate connecting holes, and a roller 3 is gap-fitted outside the sleeve 4. The inner link plate 1, roller 3, and sleeve 4 constitute an inner chain link; a bent outer link plate 2 and an attached plate 7 are arranged opposite to each other, and the attached plate 7 and the bent outer link plate 2 are both provided with two connecting holes, and two pins 5 are connected between the attached plate 7 and the bent outer link plate 2. The ends of the two pins 5 are respectively interference fit with the corresponding connecting holes of the bent outer link plate 2 or the attached plate 7, and the bent outer link plate 2, the attached plate 7, and the pins 5 constitute an outer chain link; the inner chain links and the outer chain links are alternately connected to form the agricultural machinery chain body, the pins 5 pass through the adjacent sleeves 4 and are gap-fitted with the sleeves 4, a noise reduction insert 6 is provided between the roller 3 and the sleeve 4, and the attached plate 7 is provided with a secondary accessory positioning mechanism.

[0026] Example 2

[0027] like Figure 1 As shown, the middle part of the bent outer link plate 2 is bent to form a protruding structure 21, and two sides of the protruding structure 21 form a plane structure 22. The distance B between the outer surface of the protruding structure 21 and the outer surface of the plane structure 22 is greater than the exposed amount A of the pin shaft.

[0028] like Figure 1 As shown, the protruding structure 21 is trapezoidal in top view, and the intersection of the protruding structure 21 and the plane structure 22 forms a bending line perpendicular to the direction of the line connecting the centers of the holes of the bent outer link plates.

[0029] Example 3

[0030] like Figure 1 、 3As shown, the noise reduction insert 6 is a cylindrical structure embedded in the inner surface of the roller 3. The inner surface of the cylindrical structure is clearance-matched with the sleeve 4. The cylindrical structure is made of wear-resistant elastic material.

[0031] like Figure 1 、 3 As shown, the wear-resistant elastic material is engineering plastic, synthetic rubber or polyamide fiber material.

[0032] Example 4

[0033] like Figure 3 As shown, the attachment plate 7 includes a first connection portion 71 for connecting to the end of the pin shaft 5. The top end of the first connection portion 71 is bent outward to form a second connection portion 72 for connecting to the secondary accessory. The front and rear ends of the second connection portion 72 are integrally formed with upwardly folded and mutually parallel limiting plates 73. The second connection portion is provided with a mounting hole for connecting the secondary accessory.

[0034] The working principle of this new model:

[0035] 1. There is a noise reduction insert between the roller and the sleeve. The noise reduction insert and the roller are interference fit, and the height is smaller than the roller. The material is engineering synthetic material (such as engineering plastic or synthetic rubber or polyamide fiber material), which has high wear resistance and elasticity, and excellent shock and wear reduction performance.

[0036] 2. The bent outer link plate has a bent structure. A protrusion 21 is located at the center of the bent outer link plate. The bend line is perpendicular to the line connecting the two hole centers of the bent outer link plate and passes through the upper and lower edges of the bent outer link plate. The two bend lines are parallel. After bending, the protrusion height B of the protrusion 21 is greater than the pin protrusion A. This structure reduces wear by increasing the protruding area and prolonging the protection of the pin cross section.

[0037] 3. The top of the attachment plate features a double-sided bend. The two bends, or stoppers 73, are parallel to each other, at the same height, and perpendicular to the top plane of the second connecting portion. The second connecting portion features a mounting hole in the center for mounting bolts and nuts. The second connecting portion secures the secondary attachment, and the stoppers prevent it from shaking.

[0038] 4. The above parts are assembled together and arranged in a certain way to form a chain.

Claims

1. A low-noise agricultural machinery chain with a bent chain plate, characterized by: It includes an inner link plate, a bent outer link plate, a roller, a sleeve, a pin, a noise reduction insert, and an attached plate. The two inner link plates are arranged opposite to each other, and two sleeves are connected between the two opposite inner link plates. The two ends of the sleeves are respectively interference fit with the corresponding inner link plate connecting holes, and a roller is fitted in the gap outside the sleeve. The inner link plate, roller, and sleeve constitute an inner chain link; a bent outer link plate and an attached plate are arranged opposite to each other, and the attached plate and the bent outer link plate are both provided with two connecting holes, and two pins are connected between the attached plate and the bent outer link plate. The ends of the two pins are respectively interference fit with the corresponding connecting holes of the bent outer link plate or the attached plate, and the bent outer link plate, the attached plate, the pin constitute an outer chain link, and the inner chain link and the outer chain link are alternately connected to form the agricultural machinery chain body, the pin passes through the adjacent sleeves and fits with the sleeve gap, a noise reduction insert is provided between the roller and the sleeve, and the attached plate is provided with a secondary accessory positioning mechanism.

2. A low-noise agricultural machinery chain with a bent chain plate as claimed in claim 1, characterized in that: The middle portion of the bent outer link plate is bent to form a protruding structure, and two sides of the protruding structure form a flat structure. The distance B between the outer surface of the protruding structure and the outer surface of the flat structure is greater than the exposed amount A of the pin shaft.

3. A low-noise agricultural machinery chain with a bent chain plate as claimed in claim 2, characterized in that: The protruding structure is trapezoidal in top view, and the intersection of the protruding structure and the plane structure forms a bending line perpendicular to the direction of the line connecting the centers of the holes of the bent outer link plates.

4. The low-noise agricultural machinery chain with bent chain plates according to claim 1, characterized in that: The noise reduction insert is a cylindrical structure embedded in the inner surface of the roller. The inner surface of the cylindrical structure is clearance-matched with the sleeve. The cylindrical structure is made of wear-resistant elastic material.

5. The low-noise agricultural machinery chain with bent chain plates as claimed in claim 4, characterized in that: The wear-resistant elastic material is engineering plastic, synthetic rubber or polyamide fiber material.

6. The low-noise agricultural machinery chain with bent chain plates according to claim 1, characterized in that: The attachment plate includes a first connection part for connecting to the end of the pin shaft, the top end of the first connection part is bent outward to form a second connection part for connecting to the secondary accessory, the front and rear ends of the second connection part are integrally formed with limit plates parallel to each other, and a mounting hole is opened on the second connection part.

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