Cleaning sieve of agricultural harvester

Abstract

The utility model relates to the technical field of cleaning sieves, in particular to an agricultural harvester cleaning sieve which comprises symmetrically-arranged sliding ways, a baffle is fixedly connected to one end between the two sliding ways, lifting lugs flush with the sliding ways in width are fixedly connected to the tops of the sliding ways, and a plurality of lifting holes are transversely formed in the lifting lugs at equal intervals in a penetrating mode. A sieve plate is arranged between the two slideways, the sieve plate is in a regularly arranged wave shape, a plurality of groups of sieve holes are formed in the sieve plate at equal intervals in a penetrating mode, a baffle is arranged above the sieve plate, and sliding clamping strips are symmetrically and fixedly connected to the two ends of the bottom of the sieve plate. According to the harvester, the sieve plate is arranged, so that time and labor are saved when the sieve plate is replaced, the use convenience degree can be improved, the grain harvesting efficiency can be improved, grains and straw chippings can be rapidly separated when the harvester works, blockage is not prone to being caused, and the working efficiency of the harvester is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cleaning screens, in particular to a cleaning screen for agricultural harvesters. Background Art

[0002] The cleaning screen of agricultural harvester is an important component of agricultural harvesting machinery. It is mainly used to screen out impurities (such as stems, leaves, soil, stones, etc.) in the harvested crops (such as wheat, rice, corn, etc.) to obtain clean and high-quality crops. The cleaning screen is usually composed of a screen box, a screen, a vibrator and other parts. The vibration of the vibrator makes the screen vibrate to separate the crops from the impurities. According to the characteristics of different crops, the screen of the cleaning screen can choose different apertures and materials to achieve the best screening effect. In order to ensure the normal operation of the cleaning screen, the screen should be inspected and maintained regularly. If the screen is found to be damaged or the screen holes are blocked, it should be replaced or cleaned in time to ensure the screening effect. In short, the cleaning screen of agricultural harvester is an indispensable equipment in agricultural production and plays an important role in improving the quality and yield of crops.

[0003] The cleaning screen is an important component of the agricultural cutting machine. Although the traditional cleaning screen has a certain screening ability, it still has some shortcomings. Since the sieve plates required for harvesting different grains are also different, it is necessary to replace the appropriate sieve plates according to the actual situation. However, it is difficult to replace the sieve plates, so it is time-consuming and laborious to replace the sieve plates, which reduces the convenience of use and affects the grain harvesting efficiency. In addition, it is difficult to quickly separate the grain and straw debris during operation, and it is easy to cause blockage, thereby reducing the working efficiency of the harvester. Therefore, an agricultural harvester cleaning screen is proposed to address the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide an agricultural harvester cleaning screen, which is convenient for replacing the screen plate, thereby saving time and effort when replacing the screen plate, thereby improving the convenience of use and the grain harvesting efficiency. It can quickly separate grain and straw debris during operation and is not prone to blockage, thereby improving the working efficiency of the harvester to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] An agricultural harvester cleaning screen comprises symmetrically arranged slides, one end of which is fixedly connected to an end plate, the top of the slide is fixedly connected to a lifting ear flush with the width of the slide and the lifting ear is laterally evenly spaced and penetrated with a plurality of lifting holes, a sieve plate is provided between the two slides, the sieve plate is in a regularly arranged wave shape and has a plurality of groups of sieve holes arranged evenly spaced and penetrated thereon, a baffle is provided above the sieve plate, both ends of the bottom of the sieve plate are symmetrically and fixedly connected with sliding strips, and a plurality of connecting components are evenly spaced and arranged on the slide and the sliding strip.

[0007] Preferably, a wavy groove is provided at the bottom of the baffle plate and the wavy groove is arranged to match the specifications of the sieve plate, and the top of the baffle plate is in a regularly arranged serrated shape.

[0008] Preferably, the connecting component includes a sliding slot opened on the side of the slideway close to the sliding clip, the slideway is provided with a plurality of first connecting screw holes arranged at equal intervals, and the sliding clip is provided with second connecting screw holes arranged at equal intervals, the number of which is equal to that of the first connecting screw holes, the positions of which are corresponding, and the specifications of which are matched.

[0009] Preferably, the inner cavity of the sliding clamping strip is provided with a plurality of groups of receiving grooves symmetrically arranged on both sides of the second connecting screw hole, the inner side walls of the receiving grooves are fixedly connected with telescopic support rods, and the movable ends of the telescopic support rods are fixedly connected with movable splints.

[0010] Preferably, a return spring is sleeved on the outer surface of the telescopic support rod, one end of the return spring is fixedly connected to the inner side wall of the accommodating groove, and the other end of the return spring is fixedly connected to the side wall of the movable splint.

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

[0012] In the utility model, the whole can be installed on the agricultural cutting machine through the provided lifting ears and lifting holes, the provided sieve plate and the sieve holes thereon can separate crops from impurities, so as to obtain clean and high-quality crops, the provided baffle can quickly separate grain and straw debris, and is not easy to cause blockage, thereby improving the working efficiency of the harvester, the provided sliding card bar can cooperate with the sliding card slot to slide with the slide, so that the sieve plate can be slid out of the slide when the sieve plate is replaced, and the provided connecting assembly can provide a stable connection strength and a connection method that is easy to disassemble between the sliding card bar and the slide, so that the sieve plate is easy to replace, thereby saving time and effort when replacing the sieve plate, thereby improving the convenience of use and the grain harvesting efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1It is the front view of the utility model;

[0014] Figure 2 It is an exploded view of the utility model;

[0015] Figure 3 It is a structural schematic diagram of the receiving groove of the utility model.

[0016] In the figure: 1, slideway; 101, end plate; 2, baffle; 3, lifting ear; 4, lifting hole; 5, sieve plate; 6, sieve hole; 7, sliding card strip; 8, connecting assembly; 801, sliding card slot; 802, first connecting screw hole; 803, second connecting screw hole; 804, connecting bolt; 805, receiving slot; 806, telescopic support rod; 807, movable splint; 808, reset spring. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present utility model; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0019] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

[0020] See also Figure 1-3 , the utility model provides a technical solution:

[0021] The agricultural harvester cleaning screen comprises a symmetrically arranged slideway 1, one end between the two slideways 1 is fixedly connected to an end plate 101, the top of the slideway 1 is fixedly connected to a lifting ear 3 which is flush with the width of the slideway 1 and the lifting ear 3 is horizontally evenly spaced and penetrated with a plurality of lifting holes 4, a sieve plate 5 is arranged between the two slideways 1, the sieve plate 5 is regularly arranged in a wavy shape and has a plurality of groups of sieve holes 6 evenly spaced and penetrated therethrough, a baffle plate 2 is arranged above the sieve plate 5, the bottom ends of the sieve plate 5 are symmetrically and fixedly connected with sliding clips 7, and a plurality of connecting components 8 are evenly spaced and arranged on the slideway 1 and the sliding clip 7.

[0022] A wavy groove is provided at the bottom of the baffle plate 2, and the wavy groove is matched with the sieve plate 5 in specifications. The top of the baffle plate 2 is regularly serrated, so the baffle plate 2 can match and fit with the sieve plate 5. The connecting component 8 includes a sliding groove 801 provided on the side of the slideway 1 close to the sliding card strip 7, and a plurality of first connecting screw holes 802 are arranged at equal intervals on the slideway 1. The sliding card strip 7 is provided with second connecting screw holes 803 that are equal in number, corresponding in position and matched in specifications to the first connecting screw holes 802. A connecting bolt 804 is passed through and threadedly connected to the first connecting screw hole 802 and the second connecting screw hole 803. The inner cavity of the sliding card strip 7 is provided with a plurality of groups of symmetrically arranged The receiving groove 805 is placed on both sides of the second connecting screw hole 803, and the inner side wall of the receiving groove 805 is fixedly connected with a telescopic support rod 806, and the movable end of the telescopic support rod 806 is fixedly connected with a movable splint 807. The outer surface of the telescopic support rod 806 is sleeved with a reset spring 808, and one end of the reset spring 808 is fixedly connected to the inner side wall of the receiving groove 805, and the other end is fixedly connected to the side wall of the movable splint 807. The connecting component 8 can provide a stable connection strength and a connection method that is easy to disassemble between the sliding card strip 7 and the slide 1, so as to facilitate the replacement of the screen plate 5, thereby saving time and effort when replacing the screen plate 5, thereby improving the convenience of use and improving the grain harvesting efficiency.

[0023] Working process: the lifting ears 3 and the lifting holes 4 can make the whole body be installed with the agricultural cutting machine, the sieve plate 5 and the sieve holes 6 thereon can separate the crops from the impurities, so as to obtain clean and high-quality crops. The sieve holes 6 currently mainly include round holes and staggered oblong holes. The round holes can be used to harvest millet, sorghum, soybeans, corn and broad beans, and the oblong holes are used to harvest cumin. The specific aperture usage correspondence is: 0.6 for millet and rapeseed, 0.8 for sorghum, 1.0 for millet, sorghum and rapeseed as the upper screen, 1.2 for millet, sorghum and rapeseed as the upper screen, and soybean as the lower screen , 1.5 soybean upper screen, corn upper screen, 1.8 corn upper screen, 2.0 corn upper screen, oblong hole cumin, the serrated setting of the baffle 2 can quickly separate the grain and straw debris, and is not easy to cause blockage, thereby improving the working efficiency of the harvester, the sliding card strip 7 can cooperate with the sliding card slot 801 to slide with the slide 1, so that the sieve plate 5 can be slid out of the slide 1 when the sieve plate 5 is replaced, and the connecting component 8 can provide a stable connection strength and a connection method that is easy to disassemble between the sliding card strip 7 and the slide 1 , so that it is easy to replace the sieve plate 5, so that it saves time and effort when replacing the sieve plate 5, thereby improving the convenience of use and the efficiency of grain harvesting. When the sieve plate 5 is installed with the slide 1, the sliding card strip 7 is first inserted into the sliding card slot 801 on the slide 1, and then slid inward and pushed. When the sieve plate 5 is pushed to contact with the end plate 101, the positions of the first connecting screw hole 802 and the second connecting screw hole 803 correspond to each other, and finally the connecting bolt 804 is screwed into the first connecting screw hole 802 and the second connecting screw hole 803. Yes, after the connecting bolt 804 is screwed into the second connecting screw hole 803, it will squeeze the movable splint 807, causing the movable splint 807 to move into the accommodating groove 805, and at the same time squeeze the telescopic support rod 806 and the reset spring 808. The reset spring 808 will drive the telescopic support rod 806 and the movable splint 807 to reset through its own resilience, that is, the connecting bolt 804 is squeezed and fixed by bringing the movable splint 807 close to each other, so as to prevent the connecting bolt 804 from loosening and improve the connection strength between the slide 1 and the screen plate 5.

[0024] The contents not described in detail in this specification belong to the prior art known to the professional and technical personnel in this field. The standard parts used in this utility model can be purchased from the market, and the special-shaped parts can be customized according to the description and the drawings. The specific connection methods of each part adopt the conventional means such as bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0025] 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 scope and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An agricultural harvester cleaning screen, comprising symmetrically arranged slideways (1), characterized in that: An end plate (101) is fixedly connected to one end between the two slideways (1), a lifting ear (3) flush with the width of the slideway (1) is fixedly connected to the top of the slideway (1), and a plurality of lifting holes (4) are arranged horizontally and equidistantly through the lifting ear (3), a sieve plate (5) is provided between the two slideways (1), the sieve plate (5) is in a regularly arranged wave shape, and a plurality of groups of sieve holes (6) are arranged equidistantly and pierced through the sieve plate (5), a baffle plate (2) is provided above the sieve plate (5), and sliding clips (7) are symmetrically and fixedly connected to the two ends of the bottom of the sieve plate (5), and a plurality of connecting components (8) are arranged equidistantly and equidistantly on the slideway (1) and the sliding clips (7).

2. The agricultural harvester cleaning screen according to claim 1, characterized in that: The bottom of the baffle plate (2) is provided with a wavy groove, and the wavy groove is arranged to match the specifications of the sieve plate (5), and the top of the baffle plate (2) is in a regularly arranged serrated shape.

3. The agricultural harvester cleaning screen according to claim 1, characterized in that: The connecting component (8) comprises a sliding slot (801) formed on a side of the slideway (1) close to the sliding clip (7); a plurality of first connecting screw holes (802) are arranged at equal intervals on the slideway (1); second connecting screw holes (803) are arranged at equal intervals on the sliding clip (7) and are equal in number, position and specification to the first connecting screw holes (802); and a connecting bolt (804) penetrates and is threadedly connected between the first connecting screw hole (802) and the second connecting screw hole (803).

4. The agricultural harvester cleaning screen according to claim 3, characterized in that: The inner cavity of the sliding clamping strip (7) is provided with a plurality of groups of receiving grooves (805) symmetrically arranged on both sides of the second connecting screw hole (803), the inner side wall of the receiving groove (805) is fixedly connected to a telescopic support rod (806), and the movable end of the telescopic support rod (806) is fixedly connected to a movable clamping plate (807).

5. The agricultural harvester cleaning screen according to claim 4, characterized in that: A return spring (808) is sleeved on the outer surface of the telescopic support rod (806), one end of the return spring (808) is fixedly connected to the inner wall of the accommodating groove (805), and the other end is fixedly connected to the side wall of the movable clamping plate (807).

Images