Swing roller chain with variable roller gap

Abstract

The utility model discloses a swing roller chain with a changeable roller gap, which comprises a left chain with holes and a right chain with holes, a fixed roller is arranged between the left chain with holes and the right chain with holes, a swing frame is arranged on two end shafts of the fixed roller, a swing roller is arranged on the other side of the swing frame, and the swing roller is arranged on the swing frame. The swing roller can swing around the roller shaft of the fixed roller together with the swing frame. According to the utility model, the change of the gap between the swinging roller and the adjacent fixed roller can be realized by controlling the swinging angle of the swinging roller, so that different materials can pass through and the sorting function is realized; meanwhile, due to the unique transmission mode of the rollers, feeding and sorting can be achieved on the same roller chain, and the loss of the potatoes is reduced to the minimum.

Description

Technical Field

[0001] The utility model belongs to the field of material sorting machinery, in particular to the technical field of agricultural product size grading machinery, and particularly relates to a swing roller chain with a variable roller gap. Background Art

[0002] With the development of science and technology and the improvement of people's lives, people's requirements for the quality of fruits and vegetables are getting higher and higher. In order to meet the public's demand for high-quality fruits and vegetables, people have developed various sorting equipment for different fruits and vegetables. Among these sorting equipment, the potato sorting equipment is the most difficult one. Due to its irregular shape, it causes certain difficulties in sorting. At present, most potato sorting equipment uses roller bar sorting machines. The principle is that the roller bar is installed on the chain, and it moves in a cycle driven by the chain. Then, a variable pitch auger is used to limit the spacing between adjacent roller bars, so that the spacing between the roller bars gradually increases during the movement, so as to realize the sorting of potatoes of different sizes. This type of sorting machine requires a special hoist when in use. There is a height difference between the drop port of the hoist and the roller surface of the sorting machine, which will cause the potatoes to bump and reduce the quality of the potatoes. At the same time, due to the rotation of the roller bar, sometimes slightly larger potatoes will be bitten into the roller gap, causing serious damage to the potatoes. In addition, the factors of auger manufacturing technology and cost limit the large-scale development of this type of potato sorting equipment.

[0003] In order to solve the above problems existing in the prior art, we propose an oscillating roller chain with a variable roller gap. Utility Model Content

[0004] The utility model aims to provide a swing roller chain with a simple structure, variable roller gap and synchronous feeding and sorting.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a swing roller chain with a variable roller gap comprises a left chain and a right chain, a plurality of fixed rollers are arranged at equal intervals between the left chain and the right chain, a swing frame is installed on the fixed roller, and a swing roller is installed on the other side of the swing frame; the swing frame comprises a connecting beam, swing plates are arranged at both ends of the connecting beam, and a first connecting hole and a second connecting hole are respectively opened on both sides of the swing plate; the roller shafts at both ends of the fixed roller pass through the first connecting hole to be connected to the swing frame, and the roller shafts at both ends of the swing roller pass through the second connecting hole to be connected to the swing frame.

[0006] Preferably, each chain plate of the left chain and the right chain is provided with a chain hole.

[0007] Preferably, the fixed roller is fixed to the left chain and the right chain by passing shoulder screws through the chain holes.

[0008] Preferably, the swing frame and the swing roller can rotate together with the fixed roller as the axis.

[0009] Preferably, the connection between the connecting beam and the swinging piece is non-rigidly connected.

[0010] Preferably, a guide rail for adjusting the swing amplitude of the swing roller is provided below the swing roller, and the swing roller rolls along the guide rail during the forward movement.

[0011] Compared with the prior art, the utility model has the following beneficial effects: the utility model is simple in technology and does not require a complicated pitch-changing device, thus laying a foundation for the large-scale potato mechanical sorting equipment; at the same time, due to the unique transmission mode of the roller, feeding and sorting can be realized on the same roller chain, and the loss of potatoes is reduced to a minimum; during the forward transmission of the swing roller chain of the utility model, a guide rail for adjusting the swing amplitude is arranged under the swing roller, and the swing roller rolls along the guide rail during the forward movement, while the fixed roller only moves forward with the chain without rotating, so the fixed roller will not exert a force on potatoes and other fruits and vegetables, and is therefore not easy to cause potatoes to get stuck or bite into the roller gap. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the three-dimensional structure of a preferred embodiment of the utility model;

[0013] Figure 2 This is a front view of a preferred embodiment of the utility model;

[0014] Figure 3 for Figure 2 AA section view;

[0015] Figure 4 It is a schematic diagram of the three-dimensional structure of a swing frame in a preferred embodiment of the utility model.

[0016] In the figure: 1. fixed roller; 2. swing frame; 3. swing roller; 4. left chain; 5. shoulder screw; 6. right chain; 7. chain hole; 8. connecting beam; 9. swing plate; 10. first connecting hole; 11. second connecting hole. DETAILED DESCRIPTION

[0017] A preferred embodiment of the present invention will be described below in conjunction with the accompanying drawings to clearly and completely describe the technical solution in a preferred embodiment of the present invention.

[0018] See also Figure 1-Figure 3 The utility model comprises a left chain 4 and a right chain 6, a plurality of fixed rollers 1 are arranged at equal intervals between the left chain 4 and the right chain 6, a swing frame 2 is installed on the fixed roller 1, and a swing roller 3 is installed on the other side of the swing frame 2.

[0019] See also Figure 4 The swing frame 2 includes a connecting beam 8, and swing plates 9 are arranged at both ends of the connecting beam 8. A first connecting hole 10 and a second connecting hole 11 are respectively opened on both sides of the swing plate 9. A non-rigid connection is adopted between the connecting beam 8 and the swing plate 9.

[0020] The roller shafts at both ends of the fixed roller 1 pass through the first connection hole 10 to be connected to the swing frame 2 , and the roller shafts at both ends of the swing roller 3 pass through the second connection hole 11 to be connected to the swing frame 2 .

[0021] In this embodiment, each link plate of the left chain 4 and the right chain 6 is provided with a chain hole 7, and the fixed roller 1 is fixed to the left chain 4 and the right chain 6 by passing the shoulder screw 5 through the chain hole 7, and the swing frame 2 and the swing roller 3 can rotate together with the fixed roller 1 as the axis. The shoulder screw 5 can rotate in the hole of the left chain 4 and the right chain 6 and move axially within a small size range.

[0022] In this embodiment, a guide rail for adjusting the swing amplitude of the swing roller 3 is arranged below the swing roller 3, and the swing roller 3 rolls along the guide rail during the forward movement.

[0023] The working principle of the utility model is as follows: a fixed roller 1, a swing frame 2 and a swing roller 3 together constitute a group of adjustable roller assemblies, and a plurality of groups of roller assemblies are evenly distributed along the left chain 4 and the right chain 6 at equal intervals. By controlling the forward and backward swing amplitude of the swing roller 3, the roller gap distance between the swing roller 3 and the next adjacent fixed roller 1 can be adjusted, thereby being suitable for sorting materials of different sizes.

[0024] In the same roller assembly, the fixed roller 1 and the swing roller 3 are connected by a connecting beam 8 , and the connecting beam 8 can prevent fruits and vegetables from falling or getting stuck in the roller gap between the fixed roller 1 and the swing roller 3 .

[0025] The utility model does not require a complicated variable pitch device, laying a foundation for the large-scale mechanical sorting equipment of irregular-shaped agricultural products such as potatoes. At the same time, due to the unique transmission mode of the roller, feeding and sorting can be realized on the same roller chain, reducing the damage to potatoes to a minimum.

[0026] During the forward transmission of the swing roller chain of the utility model, a guide rail for adjusting the swing amplitude is arranged under the swing roller 3. The swing roller 3 rolls along the guide rail during the forward movement, while the fixed roller 1 only moves forward with the chain without rotating. Therefore, the fixed roller 1 does not exert force on vegetables and fruits such as potatoes, and is not easy to cause potatoes to get stuck or bite into the roller gap.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A swing roller chain with a variable roller gap, comprising a left chain (4) and a right chain (6), wherein a plurality of fixed rollers (1) are arranged at equal intervals between the left chain (4) and the right chain (6), characterized in that: A swing frame (2) is installed on the fixed roller (1), and a swing roller (3) is installed on the other side of the swing frame (2); The swing frame (2) comprises a connecting beam (8), two ends of the connecting beam (8) are provided with swing plates (9), and two sides of the swing plate (9) are respectively provided with a first connecting hole (10) and a second connecting hole (11); The roller shafts at both ends of the fixed roller (1) pass through the first connection hole (10) to be connected to the swing frame (2), and the roller shafts at both ends of the swing roller (3) pass through the second connection hole (11) to be connected to the swing frame (2).

2. The swing roller chain with variable roller gap according to claim 1, characterized in that: Each chain plate of the left chain (4) and the right chain (6) is provided with a chain hole (7).

3. The swing roller chain with variable roller gap according to claim 2, characterized in that: The fixed roller (1) is fixed to the left chain (4) and the right chain (6) by passing the shoulder screws (5) through the chain holes (7).

4. The swing roller chain with variable roller gap according to claim 3, characterized in that: The swing frame (2) and the swing roller (3) can rotate together with the fixed roller (1) as an axis.

5. The swing roller chain with variable roller gap according to claim 1, characterized in that: The connection beam (8) and the swing plate (9) are non-rigidly connected.

6. The swing roller chain with variable roller gap according to claim 1, characterized in that: A guide rail for adjusting the swing amplitude of the swing roller (3) is arranged below the swing roller (3), and the swing roller (3) rolls along the guide rail during the forward movement.

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