Caterpillar band guide wheel for harvester

Abstract

The utility model discloses a crawler guide wheel for a harvester. The crawler guide wheel comprises a guide wheel, a connecting shaft, a guide wheel frame and a lubricating structure, the lubricating structure is arranged, the filling gun presses lubricating oil into the cavity, the cavity can be filled with the lubricating oil under continuous filling, the spring can be stressed and stretched to generate elastic force, the pressing rod can pressurize the lubricating oil in the cavity under the action of the spring, the lubricating oil can be injected into the injection opening, and the lubricating oil can be injected into the injection opening. And the cavity can store more lubricating oil, so that a user does not need to manually inject the lubricating oil frequently, and in the consumption process of the lubricating oil in the cavity, the pressing rod can continuously slide into the cavity, so that the lubricating oil can be automatically injected into the connecting part of the guide wheel frame and the connecting shaft. A user can check the remaining amount of lubricating oil through the distance between the pressing plate and the fixing block so that the user can conveniently observe the remaining amount.

Description

Technical Field

[0001] The utility model relates to the field related to crawler guide wheels, in particular to a crawler guide wheel for a harvester. Background Art

[0002] A harvester is an integrated machine for harvesting crops. It can complete harvesting and threshing at one time, and concentrate the grains in the storage bin, and then transport the grains to the transport vehicle through a conveyor belt. It can also be harvested manually by spreading the stalks of crops such as rice and wheat in the field, and then picked up and threshed with grain harvesters. It is a crop harvesting machinery that harvests the grains and straw of cereal crops such as rice and wheat. The harvester track is a flexible chain ring driven by a driving wheel and surrounding the road wheels, guide wheels and support wheels. The guide wheel corresponds to the driving wheel and is arranged at both ends of the track, similar to the relationship between the master and driven sprockets of a chain drive, but the guide wheel only serves to tighten and guide the track and does not participate in the engagement of the track.

[0003] Existing patent: CN220500846U, discloses a crawler anti-derailment guide wheel, relates to the technical field of guide wheels, and comprises: a wheel frame, a guide wheel body is arranged on the inner side of the wheel frame, an embedded wheel portion is arranged on the guide wheel body, a limiting assembly is arranged on the wheel frame, the limiting assembly comprises a fixed plate fixedly mounted on the wheel frame, a partition plate is fixedly connected to the fixed plate, a slide bar is slidably connected to the partition plate, the end of the slide bar is fixedly connected to a limiting block, a spring is sleeved on the slide bar, the other end of the slide bar is fixedly connected to a mounting frame, and the mounting frame is rotatably connected to the limiting wheel. By setting the limiting assembly, it is possible to provide a restriction on the connection between the embedded wheel portion and the crawler, thereby preventing the guide wheel from derailing from the crawler, thereby avoiding shutdown for maintenance, and it is very convenient to use.

[0004] The above patents or existing guide wheels have the following problems:

[0005] In order to ensure the normal operation and service life of the existing guide wheel, it is necessary to add lubricating oil at the connection between the connecting shaft and the guide wheel frame for lubrication. However, the existing lubricating oil is added by pumping the lubricating oil into the oil storage tank in the guide wheel frame. The oil storage tank has a small amount of oil, which requires users to add it frequently, and it is not convenient to observe the problem of the remaining lubricating oil. Utility Model Content

[0006] Therefore, in order to solve the above-mentioned shortcomings, the utility model provides a crawler guide wheel for a harvester.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a crawler guide wheel for a harvester, comprising a guide wheel, a connecting shaft is arranged in the guide wheel, the connecting shaft is inserted into the guide wheel frame, a lubrication structure is arranged in the guide wheel frame, the lubrication structure comprises a fixed block, the fixed block is fixed in the guide wheel frame, a cavity is opened inside the fixed block, an injection port is arranged in the cavity, the injection port is connected with one end of the oil filling pipe arranged in the guide wheel frame, a pressure rod is arranged inside the cavity, the pressure rod is fixed to the surface of the pressure plate, a telescopic rod is arranged inside the fixed block, the telescopic end of the telescopic rod is fixed to the pressure plate, a spring is arranged on the surface of the telescopic rod, one end of the spring is fixed to the pressure plate, a filling port is arranged in the middle of the pressure plate, the filling port is connected with one end of the oil filling pipe inside the pressure rod, and the other end of the oil filling pipe is located at the end of the pressure rod.

[0008] Preferably, two cavities are provided, which are respectively located at the upper and lower ends of the fixing block, and the two cavities have the same structure.

[0009] Preferably, two oil filling pipes are provided, and the oil outlets of the two oil filling pipes are located at the upper and lower ends of the connection between the guide wheel frame and the connecting shaft, and the two oil filling pipes are connected to the injection ports located in the two cavities respectively.

[0010] Preferably, the fixed end surface of the telescopic rod is integrally formed with an external thread, an adjustment plate is arranged on the external thread, a threaded sleeve connected to the external thread is arranged in the middle of the adjustment plate, and one end of the spring is fixed to the surface of the adjustment plate.

[0011] Preferably, a driving block is provided on one end surface of the adjustment plate, the driving block is hexagonal, and the driving block is not connected to the external thread.

[0012] Preferably, the telescopic end of the telescopic rod is provided with a baffle, and the pressing plate connected to the telescopic end of the telescopic rod leans against the surface of the baffle and is connected to the threaded sleeve of the telescopic end of the telescopic rod.

[0013] Beneficial effects of the utility model:

[0014] The utility model is provided with a lubrication structure, and a filling gun presses the lubricating oil into the cavity. Under continuous filling, the lubricating oil will fill the cavity, and the spring will be stretched by force to generate elastic force. Under the action of the spring, the pressure rod will pressurize the lubricating oil in the cavity, and the lubricating oil will be injected into the injection port, and then injected into the connection between the guide wheel frame and the connecting shaft through the oil filling pipe to realize automatic filling. Moreover, since the cavity can store more lubricating oil, there is no need for users to manually add lubricating oil frequently. During the consumption of the lubricating oil in the cavity, the pressure rod will continue to slide into the cavity, and the user can check the remaining lubricating oil through the distance between the pressure plate and the fixed block for user observation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a front view structural diagram of the utility model;

[0017] Figure 3 It is a schematic diagram of the front cross-sectional structure of the lubrication structure of the utility model.

[0018] Among them: guide wheel-1, connecting shaft-2, guide wheel frame-3, lubrication structure-4, fixed block-41, cavity-42, injection port-43, oil filling pipe-44, pressure rod-45, pressure plate-46, telescopic rod-47, spring-48, filling port-49, oil filling pipe-410, external thread-471, adjustment plate-472, threaded sleeve-473, drive block-474, baffle-475, threaded kit-476. DETAILED DESCRIPTION

[0019] In order to further explain the technical solution of the present utility model, it is described in detail through specific embodiments below.

[0020] See also Figure 1 and Figure 2 The utility model provides a crawler guide wheel for a harvester, including a guide wheel 1, which plays the role of tightening and guiding the crawler. A connecting shaft 2 is fixed to the axis of the guide wheel 1, and the connecting shaft 2 is inserted into a guide wheel frame 3, and the connecting shaft 2 is rotatably connected to the guide wheel frame 3. When the guide wheel 1 rotates through the crawler, the connecting shaft 2 will be driven and rotated on the inner wall of the guide wheel frame 3. The guide wheel frame 3 is a harvester bracket, which is used to fix the guide wheel 1 so that the guide wheel 1 is installed on the harvester. A lubrication structure 4 is provided in the guide wheel frame 3.

[0021] See also Figure 2 and Figure 3 The utility model provides a crawler guide wheel for a harvester. The lubrication structure 4 includes a fixed block 41, which is fixed to the guide wheel frame 3 by bolts. Cavities 42 are provided inside the upper and lower ends of the fixed block 41, which have the effect of storing more lubricating oil. An injection port 43 is integrally formed in the cavity 42. When the fixed block 41 is fixed in the guide wheel frame 3, the injection port 43 will be connected to one end of an oil filling pipe 44 assembled inside the guide wheel frame 3. The oil filling pipe 44 is provided with two, and the oil outlet is located at the upper and lower ends of the connection between the guide wheel frame 3 and the connecting shaft 2, so that the lubricating oil is better coated on the connecting shaft 2 to avoid uneven filling of the lubricating oil. The two oil filling pipes 44 are respectively connected to the injection ports 43 of the two cavities 42. A pressure rod 45 is provided inside the cavity 42. The pressure rod 45 is slidably connected to the inner wall of the cavity 42, and the pressure rod 45 is integrally formed on the surface of the pressure plate 46.

[0022] A telescopic rod 47 is fixed to the middle of the fixed block 41 by bolts, and an external thread 471 is integrally formed on the fixed end surface of the telescopic rod 47, and an adjusting plate 472 is arranged on the external thread 471. A threaded sleeve 473 for rotation is arranged in the middle of the adjusting plate 472, and the threaded sleeve 473 is threadedly connected to the external thread 471. A hexagonal driving block 474 is integrally formed on one side of the adjusting plate 472, and the driving block 474 is not connected to the external thread 471, which has the effect of facilitating the driving of the adjusting plate 472 to rotate. A baffle 475 is integrally formed on the telescopic end of the telescopic rod 47, and a pressing plate 46 plugged into the telescopic end of the telescopic rod 47 is attached to the surface of the baffle 475. A threaded sleeve 476 threadedly connected to the telescopic end of the telescopic rod 47 is used to realize the pressing plate 46. A spring 48 is arranged on the surface of the telescopic rod 47, and one end of the spring 48 is fixed on the adjusting plate 472, and the other end is fixed to the pressing plate 46.

[0023] A filling port 49 is provided in the middle of the pressure plate 46, and the filling port 49 is connected to one end of a filling pipe 410 inside the pressure rod 45, and the other end of the filling pipe 410 is located at the end of the pressure rod 45;

[0024] The user presses the lubricating oil into the filling port 49 through the filling gun, and then fills it into the cavity 42 through the filling pipe 410. With continuous filling, the lubricating oil fills the cavity 42 and pushes the pressure rod 45, so that the pressure rod 45 slides along the inner wall of the cavity 42, and pushes the pressure plate 46 to move it. In this process, the telescopic end of the telescopic rod 47 extends, and the spring 48 is stretched to generate elastic force. After the lubricating oil is filled, the pressure plate 46 is pulled under the action of the spring 48, so that the pressure rod 45 presses the cavity. The lubricating oil in 42 is pressurized, and the pressurized lubricating oil will be injected into the injection port 43, and then injected into the connection between the guide wheel frame 3 and the connecting shaft 2 through the oil filling pipe 44 to achieve automatic filling. Moreover, since the cavity 42 can store more lubricating oil, there is no need for users to manually add lubricating oil frequently. During the consumption of the lubricating oil in the cavity 42, the pressure rod 45 will continue to slide into the cavity 42, and the user can check the remaining lubricating oil through the distance between the pressure plate 46 and the fixed block 41 for the user to observe.

[0025] The above description is only a preferred example of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A crawler guide wheel for a harvester, comprising a guide wheel (1), wherein a connecting shaft (2) is arranged in the guide wheel (1), and the connecting shaft (2) is inserted into a guide wheel frame (3); Features: The invention also comprises a lubrication structure (4), wherein the guide wheel frame (3) is provided with the lubrication structure (4), wherein the lubrication structure (4) comprises a fixed block (41), wherein the fixed block (41) is fixed in the guide wheel frame (3), wherein a cavity (42) is provided inside the fixed block (41), wherein an injection port (43) is provided in the cavity (42), wherein the injection port (43) is connected to one end of an oil injection pipe (44) provided in the guide wheel frame (3), wherein a pressure rod (45) is provided inside the cavity (42), wherein the pressure rod (45) The fixed block (41) is fixed on the surface of the pressure plate (46). A telescopic rod (47) is arranged inside the fixed block (41). The telescopic end of the telescopic rod (47) is fixed to the pressure plate (46). A spring (48) is arranged on the surface of the telescopic rod (47). One end of the spring (48) is fixed to the pressure plate (46). A filling port (49) is arranged in the middle of the pressure plate (46). The filling port (49) is connected to one end of a refueling pipe (410) inside the pressure rod (45). The other end of the refueling pipe (410) is located at the end of the pressure rod (45).

2. The crawler guide wheel for a harvester according to claim 1, characterized in that: Two cavities (42) are provided, respectively located at the upper and lower ends of the fixed block (41), and the two cavities (42) have the same structure.

3. The crawler guide wheel for a harvester according to claim 2, characterized in that: Two oil injection pipes (44) are provided, and the oil outlets of the two oil injection pipes (44) are located at the upper and lower ends of the connection between the guide wheel frame (3) and the connecting shaft (2), and the two oil injection pipes (44) are respectively connected to the injection ports (43) in the two cavities (42).

4. The crawler guide wheel for a harvester according to claim 1, characterized in that: The fixed end surface of the telescopic rod (47) is integrally formed with an external thread (471), an adjustment plate (472) is arranged on the external thread, a threaded sleeve (473) connected to the external thread (471) is arranged in the middle of the adjustment plate (472), and one end of the spring (48) is fixed on the surface of the adjustment plate (472).

5. The crawler guide wheel for a harvester according to claim 4, characterized in that: A driving block (474) is disposed on one end surface of the adjustment plate (472); the driving block (474) is hexagonal, and the driving block (474) is not connected to the external thread (471).

6. The crawler guide wheel for a harvester according to claim 1, characterized in that: The telescopic end of the telescopic rod (47) is provided with a baffle (475), and the pressing plate (46) connected to the telescopic end of the telescopic rod (47) is leaning against the surface of the baffle (475) and connected to the threaded sleeve (476) of the telescopic end of the telescopic rod (47).

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