Gap bridge transmission system of harvester and harvester

Abstract

The transmission system comprises an engine, a gap bridge chain harrow and a first transmission shaft, crops are conveyed to the rear portion of the harvester through the gap bridge chain harrow, the engine is connected with the first transmission shaft to drive the gap bridge chain harrow to rotate forwards, and a first transmission wheel is arranged at one end of the first transmission shaft. The second transmission shaft is parallel to the first transmission shaft, a second transmission wheel is arranged at one end of the second transmission shaft, and the first transmission shaft and the second transmission shaft are connected through the first transmission wheel and the second transmission wheel to achieve synchronous rotation; the motor drives the second transmission shaft to rotate in the direction opposite to that of the first transmission shaft driven by the engine, and then the gap bridge chain harrow is driven to rotate reversely; when the chain harrow rotates forwards, the motor stops working, and when the chain harrow rotates reversely, the engine stops driving the first transmission shaft. According to the harvester gap bridge transmission system and the harvester, forward rotation and reverse rotation switching of the harvester gap bridge can be rapidly achieved, operation is easy, and working efficiency is high.

Description

Technical Field

[0001] The utility model relates to the field of agricultural machinery, in particular to a bridge reversal system and a harvester. Background Art

[0002] In the crop harvesting scenario, due to factors such as crop lodging, planting techniques, and driver operation, harvesters often encounter problems such as bridge blockage or poor feeding when harvesting crops.

[0003] The commonly used solution is to drive the harvester to reverse the bridge to achieve the spitting out of the blockage. In the prior art, the bridge reversal is mainly achieved in the following ways: first, the driver changes the driving structure of the bridge by operating the hand lever, that is, by setting a reversal structure in the mechanical transmission part, and driving to achieve the clutch of power to achieve the effect of bridge reversal, but the harvester driver of this structure needs to control the forward and reverse rotation of the bridge through operation, which is difficult to operate and not easy to use; second, a starter is set up, powered by a battery, and the starter drives the reversal of the bridge circuit. The problem with this technology is that two kinds of power are used for forward and reverse rotation of the bridge, and the two kinds of power are easily shared during operation, causing harvester failure and affecting the efficiency of crop harvesting.

[0004] Therefore, it is necessary to provide a bridge transmission system for a harvester that is easy to operate, practical and stable, so as to realize the reversal of the bridge and allow the blocked crop straw to be transported in reverse to the harvesting platform. Utility Model Content

[0005] The utility model aims to provide a harvester bridge transmission system and a harvester, so as to solve the problem of bridge blockage during the harvesting process.

[0006] In order to solve the above technical problems, the utility model provides a bridge transmission system of a harvester, comprising:

[0007] engine;

[0008] A bridge chain harrow, the bridge chain harrow rotates to transport crops to the rear of the harvester;

[0009] A first transmission shaft, the engine is connected to the first transmission shaft to drive the bridge chain rake to rotate forward, and a first transmission wheel is provided at one end of the first transmission shaft;

[0010] a second transmission shaft, the second transmission shaft is arranged in parallel with the first transmission shaft, a second transmission wheel is arranged at one end of the second transmission shaft, and the first transmission shaft and the second transmission shaft are connected to each other through the first transmission wheel and the second transmission wheel to realize synchronous rotation;

[0011] A motor, wherein the motor drives the second transmission shaft to rotate, and the rotation direction of the second transmission shaft driven by the motor is opposite to the rotation direction of the first transmission shaft driven by the engine, thereby driving the bridge chain rake to reverse;

[0012] When the bridge chain rake rotates forward, the motor stops working, and when the bridge chain rake rotates reversely, the engine stops driving the first transmission shaft.

[0013] A starter and a motor are used to provide power to the first transmission shaft and the second transmission shaft respectively. By switching the power supply of the starter and the motor, the harvester can quickly rotate forward and reverse across the bridge. The operation is simple, the harvesting system is stable, and the efficiency of crop collection operations can be improved.

[0014] Preferably, the first transmission wheel and the second transmission wheel are connected via a transmission chain.

[0015] Preferably, a bridge sprocket is arranged on the first transmission shaft, and the bridge sprocket is connected to the bridge chain rake.

[0016] Preferably, the second transmission shaft is connected to a passive gear, the motor comprises a driving gear, and the driving gear meshes with the passive gear.

[0017] Preferably, the motor is mounted via a mounting seat, and the passive gear and the motor are mounted on two sides of the mounting seat respectively.

[0018] Preferably, the second transmission shaft is connected to the driven gear via a gear hub to achieve synchronous rotation.

[0019] Preferably, when the motor stops working, the driving gear is disconnected from the driven gear.

[0020] Preferably, the bridge chain rake is connected to a floating roller, and the floating roller rotates following the bridge chain rake.

[0021] Preferably, the transmission chain is adjusted in tension by a fixed sprocket.

[0022] The utility model also provides a harvester, comprising the bridge transmission system of the harvester as described in any one of the above items.

[0023] Compared with the prior art, the utility model quickly realizes the switching between forward rotation and reverse rotation of the bridge by switching the power supply on the transmission shaft, is easy to operate, can effectively reduce the cleaning time of the cutter blockage, and improves the operating efficiency of the harvester. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The utility model is further described in detail below with reference to the accompanying drawings and specific embodiments:

[0025] Figure 1 It is a stereoscopic diagram of a bridge transmission system of a harvester in an embodiment.

[0026] Figure 2 It is a structural diagram of a bridge transmission system of a harvester in an embodiment.

[0027] Figure 3 It is a schematic diagram of the installation of the passive gear and the motor in the bridge transmission system of a harvester in an embodiment.

[0028] Among them, 100-bridge transmission system; 1-bridge chain rake; 2-first transmission shaft; 3-first transmission wheel; 4-second transmission shaft; 5-second transmission wheel; 6-motor; 7-transmission chain; 8-bridge sprocket; 9-passive gear; 61-driving gear; 10-mounting seat; 11-gear hub; 12-bolt; 13-floating roller; 14-fixed sprocket. DETAILED DESCRIPTION

[0029] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0030] In order to simplify the drawings, only the parts related to the present invention are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically drawn or marked. In this article, "one" not only means "only one", but also means "more than one".

[0031] It should be further understood that the term “and / or” used in the specification and appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0032] In this document, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0034] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0035] See also Figures 1 to 3 As shown, the utility model provides a bridge transmission system 100 of a harvester, comprising an engine, a bridge chain rake 1, the bridge chain rake 1 rotates to transport crops to the rear of the harvester; a first transmission shaft 2, the engine is connected to the first transmission shaft 2 and then drives the bridge chain rake 1 to rotate forward, and a first transmission wheel 3 is arranged at one end of the first transmission shaft 2; a second transmission shaft 4, the second transmission shaft 4 is arranged in parallel with the first transmission shaft 2, and a second transmission wheel 5 is arranged at one end of the second transmission shaft 4, the first transmission shaft 2 and the second transmission shaft 4 are connected by the first transmission wheel 3 and the second transmission wheel 5 to realize synchronous rotation; a motor 6, the motor 6 drives the second transmission shaft 4 to rotate, and the rotation direction of the second transmission shaft 4 driven by the motor 6 is opposite to the rotation direction of the first transmission shaft 2 driven by the engine, thereby driving the bridge chain rake 1 to reverse; when the bridge chain rake 1 rotates forward, the motor 6 stops working, and when the bridge chain rake 1 reverses, the engine stops driving the first transmission shaft 2.

[0036] Specifically, the first transmission wheel 3 is connected to the second transmission wheel 5 through a transmission chain 7. When the engine provides power to the first transmission shaft 2, the first transmission wheel 3 on the first transmission shaft 2 drives the second transmission wheel 5 on the second transmission shaft 4 through the transmission chain 7, and the second transmission shaft 4 rotates synchronously with the first transmission shaft 2, and the bridge chain rake 1 on the first transmission shaft 2 also rotates synchronously with the first transmission shaft 2. Under this action, the crop can be transported to the rear of the harvester. When the motor 6 provides power to the second transmission shaft 4, the engine and the first transmission shaft 2 are in a state of separation, that is, the engine does not provide power supply to the bridge transmission system 100 at this time. The motor 6 rotates, driving the second transmission shaft 4 to rotate, and the second transmission wheel 5 on the second transmission shaft 4 coordinates the action of the first transmission wheel 3 through the transmission chain 7, and the first transmission shaft 2 rotates accordingly, thereby driving the bridge chain rake 1 to rotate. It should be noted that the direction of rotation of the motor 6 is opposite to the direction in which the engine drives the first transmission shaft 2, and the motor 6 is preferably a reverse motor.

[0037] By configuring different power supplies for the forward rotation and reverse rotation of the bridge, the engine provides the forward rotation power to the first transmission shaft 2, and the motor 6 provides the reverse rotation power to the second transmission shaft 4, so as to realize the forward rotation and reverse rotation of the bridge. The operation is simple, and the operating efficiency of the harvester can be improved, and the progress of crop collection can be accelerated.

[0038] Furthermore, a bridge sprocket 8 is provided on the first transmission shaft 2, and the bridge sprocket 8 is connected to the bridge chain rake 1. By installing the bridge sprocket 8 on the first transmission shaft 2, the bridge chain rake 1 is stably connected to the first transmission shaft 2, thereby achieving stable rotation and improving the stability of the bridge transmission process.

[0039] Furthermore, the second transmission shaft 4 is connected to the passive gear 9 , and the motor 6 includes a driving gear 61 , which meshes with the passive gear 9 .

[0040] Further, the motor 6 is installed through the mounting seat 10, and the passive gear 9 and the motor 6 are respectively installed on both sides of the mounting seat 10. When the motor 6 is in working state, the active gear 61 extends from the back of the mounting seat 10 and meshes with the passive gear 9 to achieve power output.

[0041] Furthermore, the second transmission shaft 4 and the driven gear 9 are connected to achieve synchronous rotation through the gear hub 11. Specifically, the second transmission shaft 4 and the gear hub 11 are connected by a key, and the driven gear 9 and the gear hub 11 are fixed by bolts 12, so that power transmission can be more stably achieved to achieve rotation.

[0042] Specifically, when the motor 6 stops working, the driving gear 61 is disconnected from the driven gear 9 by extension. When the bridge reversal action is stopped, the power supply of the motor 6 is cut off. At this time, the driving gear 61 on the motor 6 is extended and retracted to achieve power cut-off from the driven gear 9, thereby stopping the output of power to the second transmission shaft 4.

[0043] Furthermore, the bridge chain rake 1 is connected to the floating roller 13 , and the floating roller 13 rotates along with the bridge chain rake 1 .

[0044] Furthermore, the transmission chain 7 is adjusted in tension by the fixed sprocket 14. The fixed sprocket 14 controls the tension of the transmission chain 7 by adjusting the position up and down, so as to achieve the effect of changing the power transmission between the first transmission shaft 2 and the second transmission shaft 4. For harvesting different varieties of crops, it has better adaptability.

[0045] It should be noted that this embodiment realizes the forward and reverse rotation of the harvester through the bridge by changing the direction of the power, that is, inputting power to the first transmission shaft 2 and the second transmission shaft 4 respectively, so as to achieve the purpose of inputting crops backward and pushing out blockages in the opposite direction. In this process, the first transmission shaft 2 and the second transmission shaft 4 cannot be input with power at the same time, that is, during the process of the engine providing power, the motor 6 is turned off; during the process of the motor 6 starting, the engine does not provide power to the first transmission shaft 5; for the process of the bridge transmission, the engine and the motor 6 do not work at the same time. The harvester driver can realize the forward and reverse rotation of the bridge through the joystick and / or button in the cab, which is convenient and simple.

[0046] The embodiment also provides a harvester equipped with the above-described cross-bridge transmission system 100, which has the advantages of high harvesting efficiency, convenience, stability, and easy operation.

[0047] In summary, the utility model application can quickly realize crop feeding and solve the problem of bridge blockage by changing the main body of applying power to the first transmission shaft 2 and the second transmission shaft 4 in the harvester bridge system, that is, realizing the functions of bridge forward rotation and bridge reverse rotation through the engine and the motor 6 respectively. With this system, the fast switching of bridge forward rotation and reverse rotation can be realized, the operation is simple, and it is suitable for a variety of harvesting scenes. At the same time, it can improve the operation efficiency and reliability of the harvester.

[0048] It will be apparent to those skilled in the art that various modifications and variations may be made to the above exemplary embodiments of the present invention without departing from the spirit and scope of the present invention. Therefore, it is intended that the present invention covers modifications and variations of the present invention that fall within the scope of the appended claims and their equivalent technical solutions.

Claims

1. A bridge transmission system for a harvester, characterized in that: include: engine; A bridge chain harrow, the bridge chain harrow rotates to transport crops to the rear of the harvester; A first transmission shaft, the engine is connected to the first transmission shaft to drive the bridge chain rake to rotate forward, and a first transmission wheel is provided at one end of the first transmission shaft; a second transmission shaft, the second transmission shaft is arranged in parallel with the first transmission shaft, a second transmission wheel is arranged at one end of the second transmission shaft, and the first transmission shaft and the second transmission shaft are connected to each other through the first transmission wheel and the second transmission wheel to realize synchronous rotation; A motor, wherein the motor drives the second transmission shaft to rotate, and the rotation direction of the second transmission shaft driven by the motor is opposite to the rotation direction of the first transmission shaft driven by the engine, thereby driving the bridge chain rake to reverse; When the bridge chain rake rotates forward, the motor stops working, and when the bridge chain rake rotates reversely, the engine stops driving the first transmission shaft.

2. A bridge transmission system for a harvester as claimed in claim 1, characterized in that: The first transmission wheel is connected with the second transmission wheel through a transmission chain.

3. A bridge transmission system for a harvester as claimed in claim 2, characterized in that: A bridge sprocket is arranged on the first transmission shaft, and the bridge sprocket is connected to the bridge chain rake.

4. A bridge transmission system for a harvester as claimed in claim 3, characterized in that: The second transmission shaft is connected to the passive gear, the motor comprises a driving gear, and the driving gear is meshed with the passive gear.

5. A bridge transmission system for a harvester as claimed in claim 4, characterized in that: The motor is installed through a mounting seat, and the passive gear and the motor are respectively installed on two sides of the mounting seat.

6. A bridge transmission system for a harvester as claimed in claim 5, characterized in that: The second transmission shaft is connected to the driven gear via a gear hub to achieve synchronous rotation.

7. A bridge transmission system for a harvester as claimed in claim 6, characterized in that: When the motor stops working, the driving gear is disconnected from the driven gear.

8. The bridge transmission system of a harvester as claimed in claim 7, characterized in that: The bridge chain rake is connected to the floating roller, and the floating roller rotates following the bridge chain rake.

9. A bridge transmission system for a harvester as claimed in claim 8, characterized in that: The transmission chain is adjusted in tightness through a fixed sprocket.

10. A harvester, characterized in that: A cross-bridge transmission system for a harvester comprising any one of claims 1-9.

Images