Conveying trough structure with adjustable internal height

Abstract

The utility model discloses a conveyor trough structure with adjustable internal height, which comprises a conveyor trough and a driven wheel component, the driven wheel component comprises a transmission shaft and a driven wheel, the driven wheel is fixedly sleeved on the transmission shaft, the transmission shaft penetrates through and extends out of mounting holes of side plates on two sides of the conveyor trough, and the aperture of the mounting holes is larger than the outer shaft diameter of a mounting sleeve. Mounting sleeves with circular cross sections are arranged at the two ends of the transmission shaft and located in mounting holes in side plates of the conveying groove, connecting sleeves are connected to the outer sides of the mounting sleeves in a sleeving mode, one ends of hanging rods are connected to the outer side walls of the connecting sleeves, the other ends of the hanging rods are arranged in through holes of mounting bases in a penetrating mode, the mounting bases are mounted on the conveying groove, and springs are arranged on the outer side walls of the hanging rods; one end of the spring abuts against the installation base, the other end of the spring abuts against the upper end face of the first check ring, the first check ring is connected to the hanging rod in a sleeving mode, and at least one nut is arranged below the first check ring.

Description

Technical Field

[0001] The utility model relates to a conveying trough structure with adjustable internal height. Background Art

[0002] At present, when harvesting crops with combine harvesters, the requirements for harvesting speed and feed volume are constantly increasing, and there are high requirements for the transportation capacity of the conveyor trough connecting the harvesting table and the threshing backpack. When harvesting crops, reasons such as harvesting lodging and messy crops can easily cause abnormal transportation in the conveyor trough, resulting in blockage of the conveyor trough. It is time-consuming and laborious to clear the blockage of the conveyor trough. For example, when the amount of crops fed into the conveyor trough is small, the crops are small and the harrow cannot be in place, which affects the efficiency of the harvesting operation. Utility Model Content

[0003] The purpose of the utility model is to solve the above deficiencies in the prior art and provide a conveying trough structure with adjustable internal height.

[0004] A conveying trough structure with adjustable internal height comprises a conveying trough and a driven wheel assembly, wherein the driven wheel assembly comprises a transmission shaft and a driven wheel, wherein the driven wheel is fixedly sleeved on the transmission shaft, and the transmission shaft passes through and extends out of mounting holes of side plates on both sides of the conveying trough, wherein the aperture of the mounting hole is larger than the outer shaft diameter of the mounting sleeve, and mounting sleeves with circular cross sections are arranged at both ends of the transmission shaft, and the mounting sleeves are located in the mounting holes on the side plates of the conveying trough.

[0005] A connecting sleeve is sleeved on the outside of the mounting sleeve, one end of a suspension rod is connected to the outer wall of the connecting sleeve, the other end of the suspension rod is inserted into the through hole of the mounting seat, the mounting seat is installed on the conveying trough, a spring is provided on the outer wall of the suspension rod, one end of the spring is against the mounting seat, and the other end of the spring is against the upper end surface of the first retaining ring, the first retaining ring is sleeved on the suspension rod, and at least one nut is provided below the first retaining ring.

[0006] Working principle: Springs are set on the suspension rods connected to the conveying trough on both sides of the passive wheel assembly to achieve adaptive adjustment of the height of the passive wheel assembly. When the amount of crops entering is large, the passive wheel assembly rises to expand the working space. When the amount of crops is not large, the space between the passive wheel and the conveying trough is small. The elastic force of the spring keeps the passive wheel assembly close to the crops during the lifting and lowering process.

[0007] In order to avoid damage to the threaded part of the hanger due to friction between the spring and the hanger, an upper anti-wear sleeve and a lower anti-wear sleeve are provided between the hanger and the spring. The lower end face of the lower anti-wear sleeve is connected to the upper end face of the retaining ring. The upper anti-wear sleeve is a step structure. The upper anti-wear sleeve includes a small step and a large step. The small step part is located in the through hole of the mounting seat, and the large step part is located below the mounting hole. The connection between the large step and the small step is in contact with the bottom surface of the mounting seat to limit the stroke of the hanger.

[0008] In order to prevent the boom from sliding off the mounting sleeve, a second retaining ring is provided on the mounting sleeve. One end face of the second retaining ring is connected to a side of the connecting sleeve away from the side plate of the conveying trough, and the other end face is connected to a nut, which is sleeved on the mounting sleeve.

[0009] Since the apertures of the through holes on both sides of the conveying trough are larger than the outer shaft diameter of the mounting sleeve, there is a gap between the two. In order to prevent crops from falling through the gap, a baffle is sleeved on the outer wall of the mounting sleeve, and one end face of the baffle is in contact with the side plate of the conveying trough.

[0010] In order to keep the sprocket structure in a tensioned state at all times, the two ends of the passive wheel assembly are respectively connected to the tensioning device, the tensioning device includes a tensioning arm, one end of the tensioning arm is connected to the passive wheel assembly, and the other end is connected to the connecting pin, the connecting pin is installed in the long hole on the conveying side plate through a nut, the connecting pin is connected to one end of the adjusting screw, the adjusting screw is movably inserted into the mounting plate on the adjusting seat, and nuts installed on the adjusting screw are provided on both sides of the mounting plate.

[0011] Beneficial effect: Compared with the prior art, the utility model arranges springs on the suspension rods connected to the conveying trough on both sides of the passive wheel assembly to realize adaptive adjustment of the height of the passive wheel assembly. When the amount of crops entering is large, the passive wheel assembly rises to expand the working space. When the amount of crops is not large, the space between the passive wheel and the conveying trough is small. The elastic force of the spring keeps the passive wheel assembly close to the crops during the lifting and moving process, which can effectively avoid blockage and increase the conveying capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a schematic diagram of a conveying trough structure with adjustable internal height;

[0013] Figure 2 is a cross-sectional view of a conveyor trough structure with adjustable internal height;

[0014] Figure 3 It is a schematic diagram of the tensioning device of the passive wheel assembly;

[0015] In the figure, 1. passive wheel assembly, 2. conveying trough, 3. spring, 4. adjusting screw, 5. adjusting seat, 6. connecting pin, 7. tensioning arm, 8. mounting seat, 9. suspension rod, 10. mounting sleeve, 11. baffle. DETAILED DESCRIPTION

[0016] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with embodiments and drawings. The embodiments are only used to explain the present invention and do not constitute a limitation on the protection scope of the present invention.

[0017] like Figure 1-3As shown, the passive wheel assembly 1, the conveying trough 2, the spring 3, the adjusting screw 4, the adjusting seat 5, the connecting pin 6, the tensioning arm 7, the mounting seat 8, the suspension rod 9, the mounting sleeve 10, and the baffle 11;

[0018] A conveying trough structure with adjustable internal height includes a conveying trough 2 and a driven wheel assembly 1. The driven wheel assembly 1 includes a transmission shaft and a driven wheel. The driven wheel is fixedly sleeved on the transmission shaft. The transmission shaft passes through and extends out of mounting holes on the side plates on both sides of the conveying trough 2. The aperture of the mounting hole is larger than the outer shaft diameter of the mounting sleeve 10. Mounting sleeves 10 with circular cross sections are provided at both ends of the transmission shaft. The mounting sleeves 10 are located in the mounting holes on the side plates of the conveying trough 2.

[0019] A connecting sleeve is sleeved on the outside of the mounting sleeve 10, and one end of a suspension rod 9 is connected to the outer wall of the connecting sleeve. The other end of the suspension rod 9 is inserted into the through hole of the mounting seat 8. The mounting seat 8 is installed on the conveying trough 2. A spring 3 is provided on the outer wall of the suspension rod 9. One end of the spring 3 abuts against the mounting seat 8, and the other end abuts against the upper end surface of the first retaining ring. The first retaining ring is sleeved on the suspension rod 9, and at least one nut is provided below the first retaining ring.

[0020] In this embodiment, an upper anti-wear sleeve and a lower anti-wear sleeve are provided between the suspension rod 9 and the spring 3, the lower end surface of the lower anti-wear sleeve is connected to the upper end surface of the retaining ring, the upper anti-wear sleeve is a step structure, and the upper anti-wear sleeve includes a small step and a large step, the small step part is located in the through hole of the mounting seat 8, and the large step part is located below the mounting hole.

[0021] In this embodiment, a second retaining ring is provided on the installation sleeve 10 , one end face of the second retaining ring is connected to a side of the connecting sleeve away from the side plate of the conveying trough 2 , and the other end face thereof is connected to a nut which is sleeved on the installation sleeve 10 .

[0022] In this embodiment, a baffle plate 11 is sleeved on the outer wall of the installation sleeve 10 , and one end surface of the baffle plate 11 is in contact with the side plate of the conveying trough 2 .

[0023] In this embodiment, both ends of the passive wheel assembly 1 are respectively connected to the tensioning device, and the tensioning device includes a tensioning arm 7, one end of the tensioning arm 7 is connected to the passive wheel assembly 1, and the other end thereof is connected to the connecting pin 6, and the connecting pin 6 is installed in the long hole on the conveying side plate through a nut, and the connecting pin 6 is connected to one end of the adjusting screw 4, and the adjusting screw 4 is movably inserted into the mounting plate on the adjusting seat 5, and nuts installed on the adjusting screw 4 are provided on both sides of the mounting plate. By adjusting the position of the adjusting screw 4 on the adjusting seat 5, the tensioning arm 7 is driven to move, and then the passive wheel assembly 1 is controlled to move, so that the chain is always in a tensioned state.

[0024] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A conveying trough structure with adjustable internal height, characterized in that: It includes a conveying trough and a passive wheel assembly. The passive wheel assembly includes a transmission shaft and a passive wheel. The passive wheel is fixedly sleeved on the transmission shaft. The transmission shaft passes through and extends out of the mounting holes of the side plates on both sides of the conveying trough. The aperture of the mounting hole is larger than the outer shaft diameter of the mounting sleeve. Both ends of the transmission shaft are provided with mounting sleeves with circular cross sections. The mounting sleeves are located in the mounting holes on the side plates of the conveying trough. A connecting sleeve is sleeved on the outer side of the mounting sleeve, one end of a suspension rod is connected to the outer side wall of the connecting sleeve, the other end of the suspension rod is inserted into the through hole of the mounting seat, the mounting seat is installed on the conveying trough, a spring is provided on the outer side wall of the suspension rod, one end of the spring is against the mounting seat, and the other end of the spring is against the upper end surface of the first retaining ring, the first retaining ring is sleeved on the suspension rod, and at least one nut is provided below the first retaining ring.

2. A conveying trough structure with adjustable internal height according to claim 1, characterized in that: An upper anti-wear sleeve and a lower anti-wear sleeve are provided between the suspension rod and the spring, the lower end surface of the lower anti-wear sleeve is connected to the upper end surface of the retaining ring, the upper anti-wear sleeve is a step structure, and the upper anti-wear sleeve includes a small step and a large step, the small step portion is located in the through hole of the mounting seat, and the large step portion is located below the mounting hole.

3. A conveying trough structure with adjustable internal height according to claim 1, characterized in that: The installation sleeve is provided with a second retaining ring, one end face of the second retaining ring is connected to a side of the connecting sleeve away from the side plate of the conveying trough, and the other end face is connected to a nut, and the nut is sleeved on the installation sleeve.

4. A conveying trough structure with adjustable internal height according to claim 1, characterized in that: The outer side wall of the installation sleeve is sleeved with a baffle, and one end surface of the baffle is in contact with the side plate of the conveying trough.

5. A conveying trough structure with adjustable internal height according to claim 1, characterized in that: The two ends of the passive wheel assembly are respectively connected to the tensioning device, and the tensioning device includes a tensioning arm, one end of the tensioning arm is connected to the passive wheel assembly, and the other end thereof is connected to the connecting pin shaft, and the connecting pin shaft is installed in the long hole on the conveying side plate through a nut, and the connecting pin shaft is connected to one end of the adjusting screw rod, and the adjusting screw rod is movably inserted into the mounting plate on the adjusting seat, and nuts installed on the adjusting screw rod are provided on both sides of the mounting plate.

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