Ear picking plate of corn harvester

Abstract

The utility model relates to the technical field of agricultural equipment, and discloses a corn harvester ear picking plate which comprises a header, an adjusting mechanism is installed at the bottom end of the header and used for leading corn stalks with different diameters to the header, and a supporting mechanism is installed at the bottom of the outer wall of the header and used for supporting corn stalks with different diameters to the header. The supporting mechanism is used for supporting cornstalks with different inclination angles; the adjusting mechanism comprises a plurality of dividers, the dividers are all installed at the bottom end of the header, the rear sides of the outer walls of the dividers are all fixedly connected with adjusting rods, and the inner walls of the middles of the adjusting rods are rotationally connected with shaft bolts. When the sliding block moves, the dividers synchronously move oppositely or oppositely through the rotating shaft, the shaft bolt and the adjusting rod, the distance between the dividers is adjusted, the design replaces a traditional mode that a sliding rail is matched with a fastening screw, the problem that time and labor are wasted when the positions of the dividers need to be adjusted one by one is solved, and the corn harvesting work efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of agricultural equipment technology, and in particular to a corn harvester ear-picking plate. Background Technology

[0002] Corn is an annual herbaceous plant belonging to the Poaceae family, also known as maize, corn, or sorghum. Its plants are tall and upright with thick stems and large, linear-lanceolate leaves. It is monoecious with separate male and female flowers on the same plant. Male flowers grow at the top of the stem in a panicle, while female flowers grow in the leaf axils in a spadix, enclosed by multiple layers of husks. The mature ear of corn contains hundreds of kernels. Originally from Central and South America, corn is a globally important food crop, rich in starch, protein, and vitamins. Besides being consumed by humans, it is widely used in feed processing, the food industry, and bioenergy. In China, it is an important food and economic crop.

[0003] The ear-picking plate of a corn harvester is a key component installed in front of or on both sides of the ear-picking roller, which peels off corn ears through a specific shaped notch or gap. Currently, the ear-picking plate uses mechanical bolts to adjust the spacing between the dividers, but the limited number of bolt fixing positions makes it difficult to meet the needs of harvesting corn stalks of various diameters. Existing technology uses a combination of slide rails and fastening screws to allow arbitrary spacing adjustment of the dividers to meet various usage requirements, but this adjustment method requires individual adjustment of the position of each divider, which is very time-consuming and labor-intensive, affecting the progress of corn harvesting. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a corn harvester ear-picking plate, which aims to improve the problem that the existing method of using a combination of slide rails and fastening screws requires individual position adjustment of each divider, which is very time-consuming and labor-intensive and affects the progress of corn harvesting.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a corn harvester ear-picking plate, including a header, an adjustment mechanism installed at the bottom of the header for introducing corn stalks of different diameters to the header, a support mechanism installed at the bottom of the outer wall of the header for supporting corn stalks at different inclination angles; the adjustment mechanism includes multiple dividers, all of which are installed at the bottom of the header, an adjustment rod is fixedly connected to the rear side of the outer wall of each divider, a shaft bolt is rotatably connected to the inner wall of the middle part of the adjustment rod, a rotating shaft is fixedly connected to the rear end of the outer wall of the adjustment rod, a limit ring is rotatably connected to the upper and lower ends of the outer wall of the rotating shaft, a slider is fixedly connected to the rear side of the outer wall of the limit ring, a top plate is installed on the top of the slider, and a drive assembly is installed on the rear side of the outer wall of the divider.

[0006] As a further description of the above technical solution:

[0007] The drive assembly includes an electric drill, which is installed on the rear side of the outer wall of the divider. A torsion block is installed on the left side of the outer wall of the electric drill. A threaded rod is fixedly connected to the left side of the outer wall of the torsion block. Limiting plates are fixedly connected to the left and right rear ends of the bottom of the outer wall of the top plate. The left and right ends of the outer wall of the threaded rod are rotatably connected to the inner wall of the limiting plate. The outer wall of the threaded rod is threadedly connected to the inner wall of the slider at equal intervals. A limiting block is fixedly connected to the top of the slider.

[0008] As a further description of the above technical solution:

[0009] The support mechanism includes a support plate, which is installed on the bottom of the outer wall of the cutting table. A base plate is fixedly connected to the bottom of the outer wall of the support plate. Multiple fixed plates are fixedly connected at equal intervals to the top of the outer wall of the base plate. The front side of the outer wall of the multiple fixed plates is fixedly connected to the rear side of the outer wall of the support plate. A power assembly is installed on the left side of the outer wall of the support plate.

[0010] As a further description of the above technical solution:

[0011] The power assembly includes a servo motor mounted on the left side of the outer wall of the support plate. A worm gear is fixedly connected to the output end of the servo motor, and a worm wheel is meshed with the bottom of the outer wall of the worm gear. A transmission rod is fixedly connected to the middle of the worm wheel, and the transmission rod is fixedly connected to the middle of multiple fixed discs. A fixing frame is mounted on the rear side of the outer wall of the support plate, and the top of the fixing frame is fixedly connected to the bottom of the outer wall of the top plate. The inner wall of the front end of the fixing frame is rotatably connected to the outer wall of the transmission rod. A support plate is fixedly connected to the rear side of the outer wall of the fixing frame, and the top of the outer wall of the support plate is fixedly connected to the bottom of the outer wall of the cutting table. A support plate is fixedly connected to the left side of the outer wall of the fixing frame, and the top of the support plate is fixedly connected to the bottom of the servo motor.

[0012] As a further description of the above technical solution:

[0013] The bottom left and right sides of the top plate are provided with grooves 2, and the interior of the grooves 2 is slidably connected to the top of the outer wall of the shaft bolt.

[0014] As a further description of the above technical solution:

[0015] The top plate has a groove at its rear end, and the interior of the groove is slidably connected to the outer wall of the limiting block.

[0016] As a further description of the above technical solution:

[0017] A protective cover is fixedly connected to the right side of the outer wall of the support plate, and the bottom right side of the protective cover is fixedly connected to the left side of the outer wall of the base plate.

[0018] As a further description of the above technical solution:

[0019] A material receiving trough is provided on the right rear end of the cutting platform, and an electric pump is fixedly connected inside the material receiving trough.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, after the electric drill is started, each slider can move relative to or away from each other on the threaded rod. When the slider moves, the rotating shaft, shaft bolt and adjusting rod make each divider move synchronously relative to or away from each other, realizing the adjustment of the distance between the dividers. This design replaces the traditional method of matching slide rails with fastening screws, solves the time-consuming and laborious problem of having to adjust the position of each divider one by one, and improves the efficiency of corn harvesting.

[0022] 2. In this utility model, after the servo motor is started, the transmission rod is rotated through the worm gear and worm wheel transmission, which drives the outer fixed plate to rotate. The support plate welded to the outside of the fixed plate rotates with it to adjust the angle. This design solves the problem of missed cutting or incomplete harvesting caused by the header being unable to effectively lift the stalks when the corn stalks are at too large an angle, thus improving the harvesting yield. Attached Figure Description

[0023] Figure 1 This is a front view of a corn harvester ear-picking plate according to the present invention;

[0024] Figure 2 This is a perspective view of a corn harvester ear-picking plate proposed in this utility model;

[0025] Figure 3 This is a side view of a corn harvester ear-picking plate proposed in this utility model;

[0026] Figure 4 This is a schematic diagram of the adjustment structure of the ear-picking plate of a corn harvester proposed in this utility model;

[0027] Figure 5 This is a split view of the adjustment structure of the ear-picking plate of a corn harvester proposed in this utility model;

[0028] Figure 6 This is an exploded view of the support mechanism for the ear-picking plate of a corn harvester proposed in this utility model.

[0029] Legend:

[0030] 1. Cutting table; 2. Adjustment mechanism; 201. Divider; 202. Adjusting rod; 203. Shaft bolt; 204. Rotating shaft; 205. Limiting ring; 206. Slider; 207. Drive assembly; 2071. Electric drill; 2072. Torsion block; 2073. Threaded rod; 2074. Limiting plate; 2075. Groove one; 2076. Limiting block; 2077. Groove two; 208. Top plate; 3. Support mechanism; 301. Support plate; 302. Base plate; 303. Fixed plate; 304. Power assembly; 3041. Servo motor; 3042. Worm gear; 3043. Worm wheel; 3044. Transmission rod; 3045. Fixed frame; 3046. Support plate; 3047. Protective cover; 3048. Pallet; 4. Receiving trough; 5. Electric pump. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figure 3 , Figure 4 and Figure 5This utility model provides an embodiment of a corn harvester's ear-picking plate, including a header 1. An adjustment mechanism 2 is installed at the bottom of the header 1, used to introduce corn stalks of different diameters to the header 1. A support mechanism 3 is installed at the bottom of the outer wall of the header 1, used to support corn stalks at different inclination angles. The adjustment mechanism 2 includes multiple dividers 201, all installed at the bottom of the header 1. Adjustment rods 202 are fixedly connected to the rear side of the outer wall of each divider 201. A shaft bolt 203 is rotatably connected to the inner wall of the middle portion of the adjustment rod 202. A rotating shaft 204 is fixedly connected to the rear end of the outer wall of the adjustment rod 202. Limiting rings 205 are rotatably connected to the upper and lower ends of the outer wall of the rotating shaft 204. A slider 206 is fixedly connected to the rear side of the outer wall of the limiting ring 205. A top plate 208 is installed on the top of the slider 206. A drive mechanism is installed on the rear side of the outer wall of each divider 201. The moving component 207 includes an electric drill 2071, which is installed on the rear side of the outer wall of the divider 201. A torsion block 2072 is installed on the left side of the outer wall of the electric drill 2071. A threaded rod 2073 is fixedly connected to the left side of the outer wall of the torsion block 2072. Limiting plates 2074 are fixedly connected to the rear ends of the left and right sides of the bottom of the outer wall of the top plate 208. The left and right ends of the outer wall of the threaded rod 2073 are rotatably connected to the inner wall of the limiting plate 2074. The outer wall of the threaded rod 2073 is equidistantly threaded to the inner wall of the slider 206. A limiting block 2076 is fixedly connected to the top of the slider 206. A second groove 2077 is provided on the left and right sides of the bottom of the top plate 208. The interior of the second groove 2077 is slidably connected to the top of the outer wall of the shaft bolt 203. A first groove 2075 is provided at the rear end of the top plate 208. The interior of the first groove 2075 is slidably connected to the outer wall of the limiting block 2076.

[0033] Specifically, the output end of the electric drill 2071 is tightly fitted with the torsion block 2072, forming a stable power transmission structure. When the electric drill 2071 starts operating, its output torque is transmitted to the torsion block 2072 through the mating surface, driving the threaded rod 2073 welded to the torsion block 2072 to rotate synchronously. Limiting plates 2074 are installed at both ends of the threaded rod 2073. These limiting plates 2074 are firmly fixed to the bottom of the top plate 208, providing stable support for the threaded rod 2073, ensuring it maintains its predetermined position during rotation, and also... The multiple sliders 206 on the threaded rod 2073 serve a limiting function, strictly restricting the movement range of the sliders 206 within the axial range of the threaded rod 2073. A limiting block 2076 is welded to the top of the slider 206. The groove 2075 at the rear end of the top plate 208 forms a precise sliding fit structure with the limiting block 2076. While providing additional support for the slider 206, the groove 2075 effectively restricts the rotational freedom of the slider 206 through physical constraints, allowing it to move only in a straight line left and right along the threaded rod 2073. When the electric drill 2071 starts and drives the threaded rod 2073 to rotate, multiple sliders 206 move relative to or away from each other on the threaded rod 2073 under the action of threaded transmission. Limiting rings 205 are welded to the front ends of each slider 206. A rotating shaft 204 is installed inside each limiting ring 205. An adjusting rod 202 is welded to the front side of the rotating shaft 204. A bolt 203 is provided in the middle of the adjusting rod 202. The top of the adjusting rod 202 is restricted by a groove 2077 at the bottom of the top plate 208, allowing it to move only within the groove 2077. As each slider 206 moves back and forth on the threaded rod 2073, the dividers 201 move synchronously in opposite directions via the transmission action of the rotating shaft 204. This allows for precise adjustment of the spacing between the dividers 201. This design completely changes the traditional adjustment method that uses a combination of slide rails and fastening screws, avoiding the tedious operation of adjusting the position of each divider 201 individually. It effectively solves the problems of time-consuming and labor-intensive traditional methods that affect the corn harvesting process, and significantly improves the efficiency and automation of corn harvesting operations.

[0034] Reference Figure 3 and Figure 6The support mechanism 3 includes a support plate 301, which is installed on the bottom of the outer wall of the cutting table 1. A base plate 302 is fixedly connected to the bottom of the outer wall of the support plate 301. Multiple fixed plates 303 are fixedly connected at equal intervals to the top of the outer wall of the base plate 302. The front side of the outer wall of the multiple fixed plates 303 is fixedly connected to the rear side of the outer wall of the support plate 301. A power assembly 304 is installed on the left side of the outer wall of the support plate 301. The power assembly 304 includes a servo motor 3041, which is installed on the left side of the outer wall of the support plate 301. A worm gear 3042 is fixedly connected to the output end of the servo motor 3041. A worm wheel 3043 is meshed with the bottom of the outer wall of the worm gear 3042. A transmission rod 3044 is fixedly connected to the middle of the worm wheel 3043. The transmission rod 3044 and... Multiple fixed plates 303 are fixedly connected in the middle. A fixed frame 3045 is installed on the rear side of the outer wall of the support plate 301. The top of the fixed frame 3045 is fixedly connected to the bottom of the outer wall of the top plate 208. The inner wall of the front end of the fixed frame 3045 is rotatably connected to the outer wall of the transmission rod 3044. A support plate 3046 is fixedly connected to the rear side of the outer wall of the fixed frame 3045. The top of the outer wall of the support plate 3046 is fixedly connected to the bottom of the outer wall of the cutting table 1. A support plate 3048 is fixedly connected to the left side of the outer wall of the fixed frame 3045. The top of the support plate 3048 is fixedly connected to the bottom of the servo motor 3041. A protective cover 3047 is fixedly connected to the right side of the outer wall of the support plate 301. The bottom right side of the outer wall of the protective cover 3047 is fixedly connected to the left side of the outer wall of the base plate 302.

[0035] Specifically, the output end of the servo motor 3041 and the worm gear 3042 are welded together to form a stable power transmission structure, ensuring the stability and reliability of the power output. The bottom of the worm gear 3042 is tightly meshed with the worm wheel 3043 to achieve efficient power transmission and change of motion direction. The middle part of the worm wheel 3043 is welded to the transmission rod 3044. When the servo motor 3041 starts running, its output rotational power is transmitted to the worm wheel 3043 through the worm gear 3042. Under the action of the transmission system, the transmission rod 3044 rotates synchronously. Multiple fixed disks 303 are welded to the outside of the transmission rod 3044. These fixed disks 303 are evenly distributed around the circumference of the transmission rod 3044 to form a stable transmission carrier. Each fixed disk 303 has a support plate 301 and a base plate 302 welded to its outside. The support plate 301 is used to perform corn stalk lifting operations, while the base plate 302 plays an auxiliary support and balancing role. When the moving rod 3044 drives the fixed plate 303 to rotate, the support plate 301 rotates synchronously. Through precise angle changes, it can adaptively lift corn stalks at different tilt angles. A fixed frame 3045 is installed on the outside of the transmission rod 3044. The fixed frame 3045 is welded to the bottom of the top plate 208, providing a solid support foundation for the transmission rod 3044 and effectively reducing shaking and deviation during operation. The bottom of the servo motor 3041 is equipped with a support plate 3048, which is firmly welded to the fixed frame 3045 to form a double support structure, ensuring that the servo motor 3041 remains stable during operation and reducing transmission errors caused by vibration. Through precise mechanical transmission design and a stable support structure, this device can effectively cope with the situation of corn stalks falling at too large an angle, significantly improving the integrity and efficiency of corn harvesting and reducing yield losses caused by incomplete harvesting.

[0036] Reference Figure 1 , Figure 2 and Figure 3 A receiving trough 4 is provided on the right side of the rear end of the header 1. An electric pump 5 is fixedly connected inside the receiving trough 4 to collect the harvested corn in time to avoid it from piling up at the header 1 and to achieve continuous harvesting.

[0037] Specifically, a specially designed receiving trough 4 is provided on the right rear end of the header 1. An electric pump 5 is fixedly connected inside the receiving trough 4 and operates synchronously when the harvesting operation starts. During the operation, the electric pump 5 can promptly absorb the corn that has just been harvested on the header 1 into the receiving trough 4. This design effectively avoids corn from accumulating on the surface of the header 1, so that the harvesting operation is not disturbed by the accumulation of materials, achieving continuous and efficient harvesting and improving the overall harvesting efficiency.

[0038] Working principle: The spacing of the divider 201 is adjusted by using an electric drill 2071 to rotate the torsion block 2072. Since the output end of the electric drill 2071 can closely engage with the torsion block 2072, rotating the torsion block 2072 causes the threaded rod 2073 welded to it to rotate. Limiting plates 2074 installed at both ends of the threaded rod 2073 are fixed to the bottom of the top plate 208, providing sufficient support for the threaded rod 2073 and limiting the movement of multiple sliders 206 on the threaded rod 2073, ensuring their movement remains within the threaded rod 2073. Limiting blocks 2076 are welded to the top of the sliders 206, allowing them to move within the groove 2075 at the rear end of the top plate 208. These blocks provide support for the sliders 206 while preventing them from rotating, thus limiting their movement to the threaded rod 2073. The sliders 206 move left and right on the screw rod 2073 when the drill 2071 is started. Multiple sliders 206 move relative to each other or away from each other on the screw rod 2073. Multiple limiting rings 205 are welded to the front of the sliders 206. A rotating shaft 204 is installed inside each ring. A shaft bolt 203 is installed in the middle of the adjusting rod 202 welded to the front of the rotating shaft 204. The top of the bolt is restricted by the groove 2077 at the bottom of the top plate 208 and can only move back and forth within the groove 2077. When the sliders 206 move relative to each other or away from each other, due to the action of the rotating shaft 204, the dividers 201 will move relative to each other or away from each other synchronously. This achieves the adjustment of the spacing between the dividers 201 and solves the problem that the method of using a combination of slide rails and fastening screws requires individual adjustment of the position of each divider 201, which is very time-consuming and laborious and affects the progress of corn harvesting.

[0039] By activating the servo motor 3041, the angle of the support plate 301 can be adjusted to support corn stalks at different tilt angles. Because a worm gear 3042 is welded to the output end of the servo motor 3041, and a transmission rod 3044 is welded to the middle of the worm wheel 3043 meshing at the bottom of the worm gear 3042, when the servo motor 3041 is activated, the transmission rod 3044 will rotate synchronously due to the transmission of the worm gear 3042 and worm wheel 3043, thereby driving the multiple fixed plates 303 welded to its outer side to rotate. Support plates 301 and base plates 302 are welded to the outer side of the fixed plates 303 respectively. When the fixed plate 303 rotates, the support plate 301 will rotate synchronously to adjust the angle. The fixed frame 3045 installed on the outside of the transmission rod 3044 is welded to the bottom of the top plate 208 to provide sufficient support. The bottom of the servo motor 3041 is equipped with a support plate 3048, which is firmly welded to the fixed frame 3045 to provide stable support for the servo motor 3041. This enables the lifting of corn stalks at different tilt angles, solving the problem that when the corn stalks are at too large an angle, the header 1 cannot effectively lift the stalks, which can easily lead to missed cutting or incomplete harvesting and reduce the harvesting yield.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., 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 corn harvester ear-picking plate, comprising a header (1), characterized in that: An adjustment mechanism (2) is installed at the bottom of the cutting platform (1). The adjustment mechanism (2) is used to introduce corn stalks of different diameters to the cutting platform (1). A support mechanism (3) is installed at the bottom of the outer wall of the cutting platform (1). The support mechanism (3) is used to support corn stalks with different inclination angles. The adjustment mechanism (2) includes multiple dividers (201), each of which is installed at the bottom of the header (1). An adjustment rod (202) is fixedly connected to the rear side of the outer wall of each of the multiple dividers (201). A shaft bolt (203) is rotatably connected to the inner wall of the middle part of the adjustment rod (202). A rotating shaft (204) is fixedly connected to the rear end of the outer wall of the adjustment rod (202). A limit ring (205) is rotatably connected to the upper and lower ends of the outer wall of the rotating shaft (204). A slider (206) is fixedly connected to the rear side of the outer wall of the limit ring (205). A top plate (208) is installed on the top of the slider (206). A drive assembly (207) is installed on the rear side of the outer wall of the divider (201).

2. The corn harvester ear-picking plate according to claim 1, characterized in that: The drive assembly (207) includes an electric drill (2071), which is installed on the rear side of the outer wall of the divider (201). A torsion block (2072) is installed on the left side of the outer wall of the electric drill (2071). A threaded rod (2073) is fixedly connected to the left side of the outer wall of the torsion block (2072). Limiting plates (2074) are fixedly connected to the left and right rear ends of the bottom of the outer wall of the top plate (208). The left and right ends of the outer wall of the threaded rod (2073) are rotatably connected to the inner wall of the limiting plate (2074). The outer wall of the threaded rod (2073) is equidistantly threaded to the inner wall of the slider (206). A limiting block (2076) is fixedly connected to the top of the slider (206).

3. The corn harvester ear-picking plate according to claim 1, characterized in that: The support mechanism (3) includes a support plate (301), which is installed on the bottom of the outer wall of the cutting table (1). A base plate (302) is fixedly connected to the bottom of the outer wall of the support plate (301). Multiple fixed plates (303) are fixedly connected at equal intervals to the top of the outer wall of the base plate (302). The front side of the outer wall of the multiple fixed plates (303) is fixedly connected to the rear side of the outer wall of the support plate (301). A power assembly (304) is installed on the left side of the outer wall of the support plate (301).

4. The corn harvester ear-picking plate according to claim 3, characterized in that: The power assembly (304) includes a servo motor (3041), which is mounted on the left side of the outer wall of the support plate (301). A worm gear (3042) is fixedly connected to the output end of the servo motor (3041). A worm wheel (3043) is meshed with the bottom of the outer wall of the worm gear (3042). A transmission rod (3044) is fixedly connected to the middle of the worm wheel (3043). The transmission rod (3044) is fixedly connected to the middle of multiple fixed discs (303). A fixing frame (3045) is mounted on the rear side of the outer wall of the support plate (301). The top of the fixed frame (3045) is fixedly connected to the bottom of the outer wall of the top plate (208). The inner wall of the front end of the fixed frame (3045) is rotatably connected to the outer wall of the transmission rod (3044). A support plate (3046) is fixedly connected to the rear side of the outer wall of the fixed frame (3045). The top of the outer wall of the support plate (3046) is fixedly connected to the bottom of the outer wall of the cutting table (1). A tray (3048) is fixedly connected to the left side of the outer wall of the fixed frame (3045). The top of the tray (3048) is fixedly connected to the bottom of the servo motor (3041).

5. The corn harvester ear-picking plate according to claim 1, characterized in that: The top plate (208) has two grooves (2077) on the left and right sides of its bottom, and the interior of the grooves (2077) is slidably connected to the top of the outer wall of the shaft bolt (203).

6. The corn harvester ear-picking plate according to claim 1, characterized in that: The top plate (208) has a groove (2075) at its rear end, and the interior of the groove (2075) is slidably connected to the outer wall of the limiting block (2076).

7. The corn harvester ear-picking plate according to claim 3, characterized in that: A protective cover (3047) is fixedly connected to the right side of the outer wall of the support plate (301), and the bottom right side of the protective cover (3047) is fixedly connected to the left side of the outer wall of the base plate (302).

8. The corn harvester ear-picking plate according to claim 1, characterized in that: The cutting platform (1) has a receiving trough (4) on the right side of its rear end, and an electric pump (5) is fixedly connected inside the receiving trough (4).

Images