Gap bridge device

Abstract

The utility model discloses a gap bridge device which comprises a gap bridge shell and a gap bridge roller located in the gap bridge shell. Wherein an adjusting structure for adjusting the height of the gap bridge roller is arranged on the gap bridge shell, and one end of the gap bridge roller penetrates out of the gap bridge shell to be connected with the adjusting structure. In the prior art, the up-and-down floating range of the floating arm under the limitation of the elastic deformation range of the spring is relatively small, but in the scheme, the height of the gap bridge roller is adjusted by adopting the adjusting structure, and the up-and-down moving range of the adjusting structure is relatively large, so that the adjusting range of the height of the gap bridge roller becomes relatively large; therefore, the situation that the crops are damaged due to extrusion in the conveying process can be reduced, the gap bridge device can be suitable for conveying more kinds of crops, and the application range of the gap bridge device is widened.

Description

Technical Field

[0001] This utility model relates to a conveying device, specifically a bridge crossing device. Background Technology

[0002] After crops such as corn, millet, and sorghum mature, existing combine harvesters harvest the crops via the header, then transport them through a conveyor bridge to the grain silo for further processing. The conveyor bridge, located between the header and the threshing unit, is responsible for transporting the harvested crops to the threshing unit for threshing. Existing conveyor bridges have a drive shaft and a driven shaft, both equipped with chains carrying rakes. During operation, the drive shaft rotates, driving the chain, which in turn moves the rakes, transporting the harvested crops to the threshing unit. However, in actual use, due to the variety of crops harvested (such as corn, millet, and sorghum), and the varying sizes of these crops, the height of the passageway within the conveyor bridge needs to be adjusted according to the type of crop being transported to prevent damage during transport.

[0003] Chinese patent document CN205266311U discloses a bridge floating roller and chain rake tensioning device. In this prior art, the bridge roller is fixed to the front axle by a bearing with a seat, the front axle is fixed to one end of the floating arm, and the other end of the floating arm is connected to a spherical bearing rod. The spherical bearing rod is also elastically connected to a fixed seat on the bridge housing by a tension spring. The bridge roller is designed as an elastic tensioning device in both the front-to-back and up-to-down directions. During operation, if the force on the bridge conveying chain rake fluctuates, the elastic tensioning device can buffer the impact, preventing the chain rake and transmission components from being directly impacted.

[0004] Another Chinese patent document, CN205454668U, discloses a bridge device for a combine harvester, including a support cylinder, an eccentric shaft, levers, a roller, a bridge housing, a fixed base, a base plate, a sprocket, a spring, a screw, and a base plate. The eccentric shaft is located inside the roller and has several pairs of levers that can rotate around its axis. The roller has holes through which the levers extend. A sprocket is fixedly connected to the roller. Both ends of the roller are rotatably mounted inside the support cylinder. The fixed base is located on both sides of the bridge housing and is bolted to it. The fixed base has arc-shaped grooves, and both ends of the eccentric shaft extend from these grooves with holes in their extended portions. A pin passes through the holes at both ends of the eccentric shaft and connects to a spring. The spring is connected to a screw, and the screw is fixedly connected to the base plate with a nut. In this prior art, the eccentric shaft moves up and down under force, allowing for the smooth transport of even excessively compressed crops.

[0005] However, in both of the aforementioned patent documents, springs are used to move the floating arm or eccentric shaft up and down. Since the range of extension and retraction of springs is limited, the distance that the floating arm or eccentric shaft can move up and down is also limited, which restricts the applicable range of the bridge crossing device and also makes it easy to cause crop breakage. Utility Model Content

[0006] To address the technical problem of limited applicability of existing bridge crossing devices due to the limited vertical floating distance of the floating arm, this utility model provides a bridge crossing device, including a bridge crossing housing and a bridge crossing roller located inside the bridge crossing housing; wherein: the bridge crossing housing is provided with an adjustment structure for adjusting the height of the bridge crossing roller, and one end of the bridge crossing roller extends out of the bridge crossing housing and is connected to the adjustment structure.

[0007] Because different crops have different volumes, the required height of the bridging rollers in the bridging device varies. For example, corn, being larger, requires the bridging rollers to be positioned higher, while grains, being smaller, require lower positions to ensure proper transport and prevent excessive compression that could damage the crops. Therefore, to make the bridging device suitable for transporting various crops, the height of the bridging rollers needs to be adjustable to accommodate different types of crops.

[0008] In existing technologies, the floating arm can only move up and down within a limited range due to the elastic deformation range of the spring. However, in this solution, an adjustment structure is used to adjust the height of the bridge roller. Compared with the spring, the adjustment structure can move up and down within a larger range, thus increasing the adjustment range of the bridge roller height. This reduces the damage to crops caused by squeezing during transportation, making it suitable for transporting more types of crops and expanding the applicability of the bridge device.

[0009] Preferably, the adjustment structure includes an adjustment rod, one end of which is connected to the bridge roller, and the other end of which is equipped with an adjustment component for adjusting the height of the bridge roller. In this solution, the height position of the bridge roller is adjusted by the cooperation of the adjustment rod and the adjustment component, which is simple in structure and can reduce the cost of the bridge device.

[0010] Preferably, the position of the adjusting component on the adjusting rod is adjustable, and the adjustment of the adjusting component drives the bridge roller to move up and down. In this solution, the up and down movement of the adjusting component drives the up and down movement of the bridge roller, which is simple to operate and can realize rapid adjustment of the bridge roller position, thereby improving the adjustment efficiency of the bridge roller.

[0011] Preferably, the adjusting assembly includes a connector fixed to the bridge housing, and the adjusting rod passes through the connector and connects to the bridge housing. In this solution, the connector enables the adjusting rod to be fixedly mounted on the bridge housing, resulting in a simple structure and reduced cost of the bridge device.

[0012] Preferably, the part of the connector that contacts the adjusting rod is arc-shaped. Since the bridge roller will deflect during its up-and-down movement, the arc-shaped part in this design ensures that the bridge roller can deflect normally, thus enabling it to move up and down normally.

[0013] Preferably, the adjusting rod has an external thread, and the adjusting assembly also includes a nut that mates with the external thread. The adjusting rod passes through the connector and connects to the nut. In this solution, the engagement of the external thread on the adjusting rod with the nut enables rapid adjustment of the bridge roller position. The structure is simple, reducing the cost of the adjusting assembly and thus the cost of the bridge device.

[0014] Preferably, an elastic element is sleeved on the adjusting rod, and the elastic element is located between the bridge roller and the connecting member. In this design, the elastic element allows the bridge roller to float up and down within a small range when its height position is fixed, thereby further increasing the applicability of the bridge device.

[0015] Preferably, a support assembly is also provided inside the bridge housing, and the bridge roller is hinged to the support assembly. The support assembly in this design further ensures the stable installation of the bridge roller within the bridge housing, thereby guaranteeing the normal operation of the bridge conveying device.

[0016] Preferably, the support assembly includes a connecting rod and a support base. The support base is connected to the bridge housing, and both ends of the connecting rod are connected to the support base and the bridge roller, respectively. In this solution, the bridge roller is supported by the cooperation of the connecting rod and the support base, thereby achieving a stable installation of the bridge roller within the bridge housing. The structure is simple and can reduce the manufacturing cost of the bridge device.

[0017] This utility model has the following beneficial effects:

[0018] 1. In this utility model, the up and down adjustment of the bridge roller can be achieved by adjusting the position of the adjusting nut on the adjusting rod. The structure is simple, which increases the applicability of the bridge device and reduces the manufacturing cost of the bridge device.

[0019] 2. This utility model can realize the rapid adjustment of the vertical position of the bridge roller, thus improving the adjustment efficiency of the bridge roller;

[0020] 3. This utility model can achieve stable installation of the bridge roller inside the bridge housing, with a simple structure, further reducing the manufacturing cost of the bridge device;

[0021] 4. The bridge roller of this utility model can further float up and down within a small range when the height position is fixed, thereby further increasing the applicability of the bridge device. Attached Figure Description

[0022] Figure 1This is a partial schematic diagram of an embodiment of a bridge crossing device according to the present invention;

[0023] Figure 2 This is a partial schematic diagram of the interior of the bridge shell;

[0024] Figure 3 This is a schematic diagram of the bridge roller structure. Detailed Implementation

[0025] The following detailed description illustrates the specific implementation method:

[0026] The reference numerals in the accompanying drawings include: bridge housing 1, connector 2, nut 3, shock absorber 4, arc block 5, adjusting rod 6, elastic element 7, fixed shaft 8, connecting rod 9, support seat 10, roller body 11, bearing kit 12, and mounting plate 13.

[0027] The basic implementation examples are as follows: Figure 1 and Figure 2 As shown: A bridge-crossing device includes a bridge housing 1 and a bridge roller located inside the bridge housing 1. The bridge housing 1 is provided with an adjustment structure for adjusting the height of the bridge roller, and one end of the bridge roller extends out of the bridge housing 1 and is connected to the adjustment structure.

[0028] like Figure 3 As shown, the bridge roller includes a roller body 11 and bearing assemblies 12 at both ends. The bearing assemblies 12 are mounted to the roller body 11 using six M10×20 hexagonal head bolts, spring washers, and flat washers. A mounting plate 13 is also mounted on the other side of the bearing assembly 12. The bridge roller also includes a fixed shaft 8, which passes through the roller body 11.

[0029] The bridge housing 1 is equipped with a support assembly. The bridge roller is hinged to the support assembly. Specifically, the support assembly includes a connecting rod 9 and a support seat 10. The support seat 10 is connected to the bridge housing 1. The two ends of the connecting rod 9 are respectively connected to the support seat 10 and the mounting plate 13 of the bridge roller.

[0030] The adjustment structure includes an adjustment rod 6 and an adjustment assembly. One end of the adjustment rod 6 is connected to the bridge roller. The adjustment assembly is mounted on the adjustment rod 6 and its position on the adjustment rod 6 is adjustable. After the position of the adjustment assembly is adjusted, it drives the bridge roller to move up and down. Specifically, the adjustment assembly includes a connector 2 fixed to the bridge housing 1. The adjustment rod 6 passes through the connector 2 and connects to the bridge housing 1. The part of the connector 2 that contacts the adjustment rod 6 is an arc-shaped part. The adjustment rod 6 is provided with external threads. The adjustment assembly also includes a nut 3 that mates with the external threads. The adjustment rod 6 passes through the connector 2 and connects to the nut 3.

[0031] Preferably, an elastic element 7 is sleeved on the adjusting rod 6. The elastic element 7 is located between the bridge roller and the connecting member 2, which allows the bridge roller to float up and down within a small range when its height position is fixed, thereby further increasing the applicability of the bridge device. In this embodiment, the elastic element 7 is a compression spring.

[0032] An arc block 5 and a shock-absorbing pad 4 are provided between the nut 3 and the connector 2, and a spare nut 3 is provided on the nut 3 to prevent the nut 3 from sliding on the adjusting rod 6.

[0033] The specific implementation process is as follows: Before using the bridge device, the height of the front roller needs to be adjusted according to the crops to be transported. During adjustment, the nut 3 is turned. During the turning of the nut 3, since the nut 3 does not move up and down, the adjusting rod 6 moves up or down, thereby driving the bridge roller to move up and down. When the bridge roller moves up and down, the connecting rod 9 swings around the hinge point on the support seat 10.

[0034] The above descriptions are merely embodiments of this utility model. Commonly known structures and characteristics are not described in detail here. Those skilled in the art are aware of all common technical knowledge in the field prior to the application date or priority date, are knowledgeable of all existing technologies in that field, and possess the ability to apply conventional experimental methods prior to that date. Therefore, those skilled in the art can, based on the guidance provided in this application, improve and implement this solution in conjunction with their own capabilities. Typical known structures or methods should not be obstacles for those skilled in the art to implement this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A bridging device, comprising a bridging housing and bridging rollers located inside the bridging housing; characterized in that: The bridge housing is provided with an adjustment structure for adjusting the height of the bridge roller, and one end of the bridge roller extends out of the bridge housing and is connected to the adjustment structure.

2. The bridge crossing device according to claim 1, characterized in that: The adjustment structure includes an adjustment rod, one end of which is connected to the bridge roller, and the other end of which is provided with an adjustment component for adjusting the height of the bridge roller.

3. The bridge crossing device according to claim 2, characterized in that: The position of the adjustment component on the adjustment rod is adjustable, and after the position of the adjustment component is adjusted, it drives the bridge roller to move up and down.

4. The bridge crossing device according to claim 3, characterized in that: The adjustment assembly includes a connector fixed to the bridge housing, and the adjustment rod passes through the connector and is connected to the bridge housing.

5. The bridge crossing device according to claim 4, characterized in that: The part of the connector that contacts the adjusting rod is arc-shaped.

6. The bridge crossing device according to claim 5, characterized in that: The adjusting rod is provided with an external thread, and the adjusting assembly also includes a nut that mates with the external thread. The adjusting rod passes through the connector and is connected to the nut.

7. The bridge crossing device according to claim 6, characterized in that: An elastic element is fitted onto the adjusting rod, and the elastic element is located between the bridge roller and the connecting member.

8. The bridge crossing device according to any one of claims 1-7, characterized in that: The bridge housing is also provided with a support assembly, and the bridge roller is hinged to the support assembly.

9. The bridge crossing device according to claim 8, characterized in that: The support assembly includes a connecting rod and a support base. The support base is connected to the bridge housing, and the two ends of the connecting rod are respectively connected to the support base and the bridge roller.

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