Roller type header belt tensioning mechanism

Abstract

The utility model relates to the technical field of belt tensioning, in particular to a roller type header belt tensioning mechanism which comprises a transmission belt and a tensioning mechanism body installed on one side of the transmission belt, the tensioning mechanism body comprises a guide rod, a spring is arranged on the guide rod, an installation frame is arranged at one end of the guide rod, a triangular support is arranged on the installation frame, and the triangular support is connected with the transmission belt. And a tensioning wheel for tensioning the transmission belt is rotationally mounted on the triangular bracket. The spring is installed on the guide rod, so that the tensioning wheel can automatically adjust the tensioning force on the transmission belt, the spring can automatically compensate the changes along with abrasion or looseness of the belt, the belt is kept in a proper tensioning state all the time, and the stress direction and the fixing mode are changed by changing the tension of the spring into elastic force. The spring does not fall off during working, and the fault of tensioning failure is eliminated.

Description

Technical Field

[0001] The utility model relates to the technical field of belt tensioning, in particular to a roller-type cutting table belt tensioning mechanism. Background Art

[0002] The belt tensioning mechanism of a roller harvester refers to a method of maintaining a proper tension state of the belt by adjusting the belt tensioning device in the roller harvester. The roller harvester is usually used in crop harvesting machinery, and the belt is used to transmit power or realize material transmission. When using the belt tensioning mechanism of the roller harvester, the operator needs to adjust the tensioning device in time according to the use and wear degree of the belt to ensure that the belt is neither too loose nor too tight. The existing transmission structure uses the tension of the spring for transmission during tensioning, and the spring is easy to fall off during operation, so that the tension fails. Therefore, the utility model provides a belt tensioning mechanism for a roller harvester. Utility Model Content

[0003] The main purpose of the utility model is to provide a roller harvesting table belt tensioning mechanism to solve the problem that the existing transmission structure proposed in the related art uses the tension of the spring for transmission during tensioning, and the spring is easy to fall off during operation, thereby causing tensioning failure.

[0004] In order to achieve the above-mentioned purpose, according to one aspect of the utility model, a roller cutter belt tensioning mechanism is provided, including a transmission belt and a tensioning mechanism installed on one side of the transmission belt, the tensioning mechanism including a guide rod, a spring is provided on the guide rod, a mounting frame is provided at one end of the guide rod, a triangular bracket is provided on the mounting frame, and a tensioning wheel for tensioning the transmission belt is rotatably installed on the triangular bracket.

[0005] Furthermore, a driving wheel and a driven wheel are rotatably mounted at both ends of the transmission belt, and a rotating shaft is fixedly mounted at the center of the driving wheel.

[0006] Furthermore, support plates are fixedly mounted on both ends of the rotating shaft, and a fixing plate is fixedly mounted on one side of the two support plates.

[0007] Furthermore, a mounting plate is fixedly installed on the other side of one of the support plates, a fixing frame is fixedly installed at the center of the other side of the mounting plate, and a bracket is fixedly installed at the top center of the fixing frame near one end.

[0008] Furthermore, the bracket is provided with an opening near the top center, and a third rotating shaft is rotatably installed in the opening. One end of the third rotating shaft is rotatably installed in the opening, and a small hole is penetrated on one side of the other end of the third rotating shaft, and the guide rod is slidably installed in the small hole.

[0009] Furthermore, one end of the guide rod is fixedly installed at the center of one side of the mounting frame, a slot is provided on the upper surface of the mounting frame, small holes communicating with the slot are provided through both ends of the mounting frame near the top, a first mounting hole is provided through one side of the top of the triangular bracket, and a third bolt is fixedly installed on the small hole and the first mounting hole.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] By installing the spring on the guide rod, the tensioning wheel can automatically adjust the tension on the transmission belt. As the belt wears or loosens, the spring can automatically compensate for these changes and keep the belt in a properly tensioned state at all times. By changing the tension of the spring into elastic force, the force direction and fixing method are changed, so that the spring will no longer fall during operation, eliminating the failure of tensioning. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 It is a schematic diagram of the tensioning mechanism of the utility model;

[0014] Illustration Description:

[0015] 1. Transmission belt; 11. Driving wheel; 12. Passive wheel; 13. Rotating shaft; 2. Tensioning mechanism; 21. Guide rod; 211. First bolt; 212. Limiting plate; 213. Second bolt; 22. Spring; 23. Mounting frame; 231. Third bolt; 24. Triangular bracket; 25. Tensioning wheel; 251. Second rotating shaft; 26. Third rotating shaft; 31. Fixing plate; 32. Supporting plate; 321. Through hole; 33. Mounting plate; 34. Fixing frame; 341. Fourth rotating shaft; 35. Bracket. DETAILED DESCRIPTION

[0016] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0017] See also Figure 1 to Figure 2 The present embodiment provides a roller harvester belt tensioning mechanism, including a transmission belt 1 and a tensioning mechanism 2 installed on one side of the transmission belt 1, the tensioning mechanism 2 includes a guide rod 21, a spring 22 is provided on the guide rod 21, a mounting frame 23 is provided at one end of the guide rod 21, a triangular bracket 24 is provided on the mounting frame 23, and a tensioning wheel 25 for tensioning the transmission belt 1 is rotatably installed on the triangular bracket 24.

[0018] A driving wheel 11 and a driven wheel 12 are rotatably mounted at both ends of the transmission belt 1, and a rotating shaft 13 is fixedly mounted in the center of the driving wheel 11. It should be added that the rotating shaft 13 is located on one side of the driving wheel 11. The driving wheel 11 is connected to an external power source through the rotating shaft 13, thereby driving the transmission belt 1 to operate, and the driven wheel 12 rotates with the rotation of the transmission belt 1 to achieve power transmission or material transmission.

[0019] Support plates 32 are fixedly installed on both ends of the rotating shaft 13, and fixed plates 31 are fixedly installed on one side of the two support plates 32. It should be added that through holes 321 are respectively opened at the center of one end of the two support plates 32, and bearings are fixedly installed in the two through holes 321, and the rotating shaft 13 is fixedly installed in the middle of the bearings.

[0020] The driving belt 1 and the tensioning mechanism 2 are fixedly mounted on the machine via a fixing plate 31 .

[0021] A mounting plate 33 is fixedly mounted on the other side of one of the support plates 32, a fixing frame 34 is fixedly mounted at the center of the other side of the fixing plate 33, and a bracket 35 is fixedly mounted at the center of the top of the fixing frame 34 near one end. It should be added that a groove is opened at the center of one end of the fixing frame 34, the center of the other side of the mounting plate 33 is fixedly mounted in the groove by welding, and the bottom of the bracket 35 is fixedly mounted at the center of the top of the fixing frame 34 near one end by welding.

[0022] The bracket 35 is provided with an opening near the center of the top, and a third rotating shaft 26 is rotatably installed in the opening, one end of the third rotating shaft 26 is rotatably installed in the opening, and a small hole is penetrated through one side of the other end of the third rotating shaft 26, and the guide rod 21 is slidably installed in the small hole. It should be supplemented that: a first bolt 211 is threadedly installed near the other end of the guide rod 21, a limit plate 212 is fixedly installed on the guide rod 21, and a spring 22 is fixedly installed between the limit plate 212 and the third rotating shaft 26.

[0023] The guide rod 21 is the main supporting component of the tensioning mechanism 2, and it is allowed to move or adjust under the guidance of the mounting frame 23 to change the distance between the tensioning wheel 25 and the transmission belt 1. The spring 22 is installed on the guide rod 21, and its function is to provide continuous elastic force so that the tensioning wheel 25 always maintains a certain tension on the transmission belt 1.

[0024] One end of the guide rod 21 is fixedly mounted at the center of one side of the mounting frame 23, a slot is provided on the upper surface of the mounting frame 23, small holes communicating with the slot are provided near the top of both ends of the mounting frame 23, a first mounting hole is provided at one side of the top of the triangular bracket 24, and a third bolt 231 is fixedly mounted on the small hole and the first mounting hole. It should be supplemented that: a rod hole is provided at the center of one side of the mounting frame 23, one end of the guide rod 21 is fixedly mounted in the rod hole and is higher than the bottom of the slot, a second bolt 213 is threadedly mounted at one end of the guide rod 21, an axial hole is provided at the center of one side of the fixing frame 34 near the other end, a second mounting hole is provided at one side of one end of the triangular bracket 24, a fourth rotating shaft 341 is fixedly mounted between the axial hole and the second mounting hole, a third mounting hole is provided at one side of the bottom of the triangular bracket 24, a second rotating shaft 251 is fixedly mounted in the third mounting hole, one end of the second rotating shaft 251 is fixedly mounted in the third mounting hole, and the tensioning wheel 25 is rotatably mounted on one end of the second rotating shaft 251.

[0025] In the specific use of the utility model, first, the external power source is started, and the driving wheel 11 is driven to rotate by the rotating shaft 13, thereby driving the transmission belt 1 to operate, and the driven wheel 12 will rotate with the rotation of the transmission belt 1 to realize the transmission of power or material. During the entire operation process, the tensioning wheel 25 will always maintain a certain tension on the transmission belt 1 to ensure the stable operation of the belt. When the tension of the transmission belt 1 needs to be adjusted, the distance between the tensioning wheel 25 and the transmission belt 1 can be changed by moving the mounting frame 23. Since the guide rod 21 is elastic under the action of the spring 22, the position of the tensioning wheel 25 can be adjusted as needed to achieve the best tensioning effect.

[0026] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A belt tensioning mechanism for a roller harvester, comprising a transmission belt (1) and a tensioning mechanism (2) mounted on one side of the transmission belt (1), characterized in that: The tensioning mechanism (2) comprises a guide rod (21), a spring (22) being provided on the guide rod (21), a mounting frame (23) being provided at one end of the guide rod (21), a triangular bracket (24) being provided on the mounting frame (23), and a tensioning wheel (25) for tensioning the transmission belt (1) being rotatably mounted on the triangular bracket (24).

2. A roller harvester belt tensioning mechanism according to claim 1, characterized in that: A driving wheel (11) and a driven wheel (12) are rotatably mounted on both ends of the transmission belt (1), and a rotating shaft (13) is fixedly mounted in the center of the driving wheel (11).

3. A belt tensioning mechanism for a roller harvester according to claim 2, characterized in that: Support plates (32) are fixedly mounted on both ends of the rotating shaft (13), a fixed plate (31) is fixedly mounted on one side of the two support plates (32), through holes (321) are respectively penetrated at the center of one end of the two support plates (32), bearings are fixedly mounted in the two through holes (321), and the rotating shaft (13) is fixedly mounted in the middle of the bearings.

4. A belt tensioning mechanism for a roller harvester according to claim 3, characterized in that: A mounting plate (33) is fixedly mounted on the other side of one of the support plates (32), a fixing frame (34) is fixedly mounted at the center of the other side of the mounting plate (33), and a bracket (35) is fixedly mounted at the top center of the fixing frame (34) near one end.

5. A belt tensioning mechanism for a roller harvester according to claim 4, characterized in that: The bracket (35) is provided with an opening near the center of the top, and a third rotating shaft (26) is rotatably installed in the opening. One end of the third rotating shaft (26) is rotatably installed in the opening, and a small hole is penetrated through one side of the other end of the third rotating shaft (26), and the guide rod (21) is slidably installed in the small hole.

6. The belt tensioning mechanism of a roller harvester according to claim 1, characterized in that: One end of the guide rod (21) is fixedly mounted at the center of one side of the mounting frame (23); a slot is provided on the upper surface of the mounting frame (23); small holes communicating with the slot are provided through the two ends of the mounting frame (23) near the top; a first mounting hole is provided through the top side of the triangular bracket (24); a third bolt (231) is fixedly mounted on the small hole and the first mounting hole.

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