Distance measuring and shrinking adjusting device for telescopic tooth pulling of harvester

Abstract

The utility model belongs to the technical field of agricultural tools, and particularly relates to a harvester telescopic pulling tooth distance measuring and shrinking adjusting device which comprises an outer sleeve, a positioning screw sleeve and a lifting sleeve are installed in the outer sleeve, the lifting sleeve is used for being connected with telescopic pulling teeth of a harvester, and a rotationally-connected position adjusting nut is installed on the outer sleeve. The inner end of the position adjusting nut is in threaded connection with a positioning screw sleeve, a positioning plate is installed on the positioning screw sleeve, a limiting plate is installed on the lifting sleeve, a touch type sensing mechanism located below the limiting plate is installed at the outer end of the positioning plate, and an elastic supporting assembly connected with the limiting plate is installed in the outer sleeve. The lifting sleeve moves in the outer sleeve along with the telescopic pulling teeth, so that the limiting plate on the lifting sleeve can directly reflect the extending length of the telescopic pulling teeth, and the prompting function when the telescopic length of the telescopic pulling teeth is adjusted is achieved in the mode that the limiting plate is close to the positioning plate and triggers the induction mechanism. The purpose of increasing the telescopic tooth pulling adjusting speed is achieved.

Description

Technical Field

[0001] This utility model belongs to the field of agricultural tool technology, and in particular relates to a device for measuring and adjusting the distance of the telescopic teeth of a harvester. Background Technology

[0002] To maintain a stable and effective feeding function, the distance between the telescopic teeth and the base plate of the harvester's feeding auger needs to be adjusted depending on the crop being harvested. However, due to the location of the height bolt on the telescopic teeth, it is impossible to observe and measure the distance between the telescopic teeth and the base plate while controlling the height bolt under single-person operation. Therefore, it is necessary to adjust the telescopic teeth's extension and retraction while controlling the height bolt, and at the same time measure the distance between the telescopic teeth and the base plate, resulting in a slow adjustment speed for the telescopic teeth.

[0003] This utility model designs a harvester telescopic tooth-pulling distance measurement and reduction adjustment device to solve the above problems. Utility Model Content

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A harvester telescopic tooth distance measuring and reduction adjustment device includes an outer casing, which is hollow and has openings at the top and sides. Inside the outer casing are a positioning screw sleeve and a lifting sleeve. The lifting sleeve connects to the harvester's telescopic tooth. The positioning screw sleeve is slidably installed at the lower end of the outer casing. The lower end of the lifting sleeve extends into the interior of the positioning screw sleeve, and the lifting sleeve is slidably connected to the positioning screw sleeve. The top of the lifting sleeve extends to the upper opening of the outer casing. A rotating adjusting nut is installed on the outer casing, with its outer end located outside the outer casing and its inner end threadedly connected to the positioning screw sleeve. A positioning plate is installed on the positioning screw sleeve, and a limit plate is installed on the lifting sleeve. The limit plate is located above the positioning plate, and both the outer ends of the limit plate and the positioning plate extend from the side openings of the outer casing to the outside. A touch-sensitive mechanism is installed at the outer end of the positioning plate, located below the limit plate. An elastic support assembly connected to the limit plate is installed inside the outer casing.

[0006] As a preferred embodiment, the sensing mechanism includes an electrical box located on the outside of the outer casing and connected to the outer end of the positioning plate. A limit switch is installed inside the electrical box, and an audible and visual prompting component electrically connected to the limit switch is installed on the electrical box.

[0007] As a preferred embodiment, the electrical box contains a battery, and the audio-visual prompting components include an indicator light, a start switch, a buzzer, a limit switch, and an electrical connection between the indicator light, the buzzer, and the battery, all mounted on the electrical box.

[0008] As a preferred embodiment, the limit plate is located above the limit switch, and the limit plate can contact the limit switch.

[0009] As a preferred embodiment, the elastic support assembly includes a spring guide rod and a spring. The inner side of the outer sleeve is provided with a guide groove parallel to the central axis of the outer sleeve. The spring guide rod is installed in the guide groove. The spring guide rod is located on the lower side of the limiting plate, and the upper end of the spring guide rod is connected to the limiting plate. The spring is sleeved on the outer side of the spring guide rod, and the two ends of the spring abut against the limiting plate and the inner wall of the guide groove, respectively.

[0010] As a preferred embodiment, the lower end of the outer casing has an opening, and a lifting base sleeve is installed at the lower end of the outer casing. The lifting base sleeve is fixedly connected to the outer casing by screws, and the upper end of the lifting base sleeve extends into the interior of the outer casing and abuts against the lower end of the adjusting nut.

[0011] As a preferred embodiment, a top cover with a central through hole is installed at the upper opening of the outer sleeve, and a fixing component is installed at the upper end of the lifting sleeve. The lower end of the fixing component abuts against the upper end of the limiting plate, and the outer diameter of the fixing component is smaller than the inner diameter of the through hole of the top cover.

[0012] As a preferred option, the outer surface of the jacket is engraved with scale values.

[0013] Compared with existing technologies, the advantages of this utility model are:

[0014] 1. The lifting sleeve of this utility model moves inside the outer sleeve along with the telescopic puller. Therefore, the limiting plate on the lifting sleeve can directly reflect the extension length of the telescopic puller. With the positioning plate whose height can be manually adjusted by adjusting the nut, the distance between the positioning plate and the limiting plate can correspond to the telescopic length that the telescopic puller needs to be adjusted. Therefore, by the limiting plate approaching the positioning plate and the limiting plate triggering the sensing mechanism, the prompt function when adjusting the telescopic length of the telescopic puller is realized, thereby improving the adjustment speed of the telescopic puller and solving the problem of needing to adjust and measure at the same time when adjusting the telescopic puller.

[0015] 2. This utility model adjusts the height of the positioning sleeve by rotating the adjusting nut, which can more accurately control the position of the positioning plate. Moreover, the threaded connection between the adjusting nut and the positioning sleeve can keep the positioning plate fixed and not offset when controlling the extension and retraction of the telescopic teeth, thus having good stability. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the present invention.

[0017] Figure 2 This is a rear view schematic diagram of this utility model.

[0018] Figure 3 This is a cross-sectional schematic diagram of the internal structure of the outer casing of this utility model.

[0019] Figure 4 This is a cross-sectional schematic diagram of the spring guide rod and spring of this utility model.

[0020] Figure 5 This is a schematic diagram of the limit plate of this utility model in the state of triggering the limit switch.

[0021] Figure 6 This is a cross-sectional schematic diagram of the limit plate of this utility model in the state of triggering the limit switch.

[0022] The following are the labels in the diagram: 1. Outer sleeve; 2. Positioning screw sleeve; 3. Lifting sleeve; 4. Adjusting nut; 5. Positioning plate; 6. Limiting plate; 7. Electrical box; 8. Limit switch; 9. Battery; 10. Indicator light; 11. Start switch; 12. Buzzer; 13. Spring guide rod; 14. Spring; 15. Lifting base sleeve; 16. Screw; 17. Top cover; 18. Fixing component; 19. Telescopic puller. Detailed Implementation

[0023] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following embodiments or drawings are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0024] A device for measuring and adjusting the distance of the telescopic tooth of a harvester, such as... Figures 1 to 6 As shown, the device includes an outer sleeve 1, which is hollow and has openings at the top and sides. A positioning screw sleeve 2 and a lifting sleeve 3 are installed inside the outer sleeve 1. The lifting sleeve 3 is used to connect with the telescopic extraction tooth 19 of the harvester. The positioning screw sleeve 2 is slidably installed at the lower end of the outer sleeve 1. The lower end of the lifting sleeve 3 extends into the interior of the positioning screw sleeve 2, and the lifting sleeve 3 is slidably connected to the positioning screw sleeve 2. The top end of the lifting sleeve 3 extends to the upper opening of the outer sleeve 1. A rotating adjusting nut 4 is installed on the outer sleeve 1. The outer end of the adjusting nut 4 is located outside the outer sleeve 1, and the inner end of the adjusting nut 4 is connected to the outer sleeve 1. The positioning sleeve 2 is threaded. Rotating the adjusting nut 4 can control the positioning sleeve 2 to move along the axis of the outer sleeve 1. The positioning sleeve 2 is equipped with a positioning plate 5. The lifting sleeve 3 is equipped with a limit plate 6. The limit plate 6 is located above the positioning plate 5. Both the outer ends of the limit plate 6 and the outer ends of the positioning plate 5 extend from the side opening of the outer sleeve 1 to the outside of the outer sleeve 1. The outer end of the positioning plate 5 is equipped with a touch-type sensing mechanism located below the limit plate 6. The inner part of the outer sleeve 1 is equipped with an elastic support component connected to the limit plate 6. The outer surface of the outer sleeve 1 is engraved with scale values, which increase from bottom to top.

[0025] The correct installation state of the device is as follows: the lifting sleeve 3 is fitted onto the telescopic tooth 19 of the harvester, the bottom of the outer sleeve 1 abuts against the bottom plate of the harvester, and the outer sleeve 1 remains fixed. With the cooperation of the elastic support component, the lifting sleeve 3 moves with the telescopic tooth 19 within the outer sleeve 1. Therefore, the limiting plate 6 on the lifting sleeve 3 can directly reflect the extension length of the telescopic tooth 19. With the cooperation of the positioning plate 5, whose height can be manually adjusted by the adjusting nut 4, the distance between the positioning plate 5 and the limiting plate 6 can correspond to the telescopic length that the telescopic tooth 19 needs to be adjusted. Therefore, by the limiting plate 6 approaching the positioning plate 5, the limiting plate 6 triggers the sensing mechanism, thereby realizing the prompt function when adjusting the telescopic length of the telescopic tooth 19, achieving the purpose of improving the adjustment speed of the telescopic tooth 19, and solving the problem of needing to adjust and measure at the same time when adjusting the telescopic tooth 19.

[0026] Adjusting the height of the positioning sleeve 2 by rotating the adjusting nut 4 allows for more precise control of the position of the positioning plate 5. Furthermore, the threaded connection between the adjusting nut 4 and the positioning sleeve 2 ensures that the positioning plate 5 remains fixed and does not shift when controlling the extension and retraction of the telescopic puller 19, thus providing good stability.

[0027] like Figure 3 As shown, the sensing mechanism includes an electrical box 7, which is located outside the outer casing 1 and connected to the outer end of the positioning plate 5. A limit switch 8 is installed inside the electrical box 7. An audible and visual prompting component electrically connected to the limit switch 8 is installed on the electrical box 7. A battery 9 is installed inside the electrical box 7. The audible and visual prompting component includes an indicator light 10, a start switch 11, and a buzzer 12 installed on the electrical box 7. The limit switch 8, indicator light 10, buzzer 12, and battery 9 are electrically connected. A limit plate 6 is located above the limit switch 8 and can contact the limit switch 8.

[0028] like Figure 4 As shown, the elastic support assembly includes a spring guide rod 13 and a spring 14. The inner side of the outer sleeve 1 is provided with a guide groove parallel to the central axis of the outer sleeve 1. The spring guide rod 13 is installed in the guide groove and is located on the lower side of the limiting plate 6. The upper end of the spring guide rod 13 is connected to the limiting plate 6. The spring 14 is sleeved on the outer side of the spring guide rod 13, and the two ends of the spring 14 abut against the limiting plate 6 and the inner wall of the guide groove, respectively.

[0029] The lower end of the outer sleeve 1 has an opening, and a lifting base sleeve 15 is installed at the lower end of the outer sleeve 1. The lifting base sleeve 15 is fixedly connected to the outer sleeve 1 by screws 16. The upper end of the lifting base sleeve 15 extends into the interior of the outer sleeve 1 and abuts against the lower end of the adjusting nut 4.

[0030] A top cover 17 with a through hole in the center is installed at the upper opening of the outer sleeve 1. A fixing part 18 is installed at the upper end of the lifting sleeve 3. The lower end of the fixing part 18 abuts against the upper end of the limiting plate 6. The outer diameter of the fixing part 18 is smaller than the inner diameter of the through hole of the top cover 17.

[0031] Working principle:

[0032] Rotating the adjusting nut 4 controls the movement of the positioning sleeve 2, moving the positioning plate 5 away from the limiting plate 6, leaving space for the movement of the limiting plate 6. The device is then placed on the telescopic tooth 19 of the harvester. The telescopic tooth 19 is inserted into the lifting sleeve 3. The distance between the telescopic tooth 19 and the bottom plate of the harvester changes due to the change in the harvester's feeding auger. Therefore, during measurement, the telescopic tooth 19 is first rotated to the position with the shortest distance from the bottom plate. During this process, the lifting bottom sleeve 15 at the bottom of the outer sleeve 1 first contacts and abuts against the bottom plate. The outer sleeve 1 will remain stationary. The telescopic tooth 19 pushes the lifting sleeve 3 downward. When the lifting sleeve 3 moves to the lowest point during the rotation process, it means that the telescopic tooth 19 has rotated to the position with the shortest distance from the bottom plate. In this state, the scale of the outer sleeve 1 corresponding to the positioning plate 5 is set as an initial value for the distance between the telescopic tooth 19 and the bottom plate.

[0033] Before adjusting the extension length of the telescopic tooth 19 of the harvester, press the start switch 11. The extension length that the telescopic tooth 19 needs to be adjusted corresponds to the distance between the limit switch 8 and the limit plate 6. According to the scale value on the outer sleeve 1, the position of the limit switch 8 is adjusted by rotating the adjustment nut 4 to control the movement of the positioning plate 5.

[0034] After the positioning plate 5 completes its movement and positioning, adjust the height bolts of the telescopic tooth 19 on the harvester to control the telescopic tooth 19 to continue extending. The limit plate 6 will descend with the lifting sleeve 3 and continuously approach the limit switch 8 until the limit plate 6 triggers the limit switch 8. The indicator light 10 and buzzer 12 will then sound an alarm, completing the extension length adjustment of the telescopic tooth 19.

[0035] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A reaping machine telescopic tine reach measurement and reduction adjustment device characterised in that: The utility model provides a kind of positioner, including outer cover (1), the outer cover (1) is hollow and upper end is equipped with opening with side, positioning screw bush (2) and lifting sleeve (3) are installed in outer cover (1), lifting sleeve (3) is used to be connected with telescopic tooth (19) of harvester, positioning screw bush (2) is installed in outer cover (1) lower end in sliding connection, lifting sleeve (3) lower end extends to the inside of positioning screw bush (2), and lifting sleeve (3) is slidably connected with positioning screw bush (2), lifting sleeve (3) top end extends to the opening of outer cover (1) upper end, outer cover (1) is installed with rotatingly connected position adjusting nut (4), position adjusting nut (4) outer end is located outside outer cover (1), position adjusting nut (4) inner end is threadedly connected with positioning screw bush (2), positioning screw bush (2) is installed with positioning plate (5), lifting sleeve (3) is installed with limiting plate (6), limiting plate (6) is located above positioning plate (5), and limiting plate (6) outer end and positioning plate (5) outer end are extended to the outside of outer cover (1) from the opening of outer cover (1) side, positioning plate (5) outer end is installed with the touch type sensing mechanism located below limiting plate (6), outer cover (1) is installed with the elastic support assembly connected with limiting plate (6) inside.

2. The harvester telescoping reach distance measuring and reducing adjustment device of claim 1, wherein: The sensing mechanism includes an electric box (7) located outside the outer cover (1) and connected with the outer end of the positioning plate (5), a limit switch (8) installed inside the electric box (7), and an audible and visual prompting assembly electrically connected with the limit switch (8) installed on the electric box (7).

3. The harvester telescoping unhooking distance measuring and reducing adjustment device of claim 2, wherein: The electric box (7) is installed with a battery (9) inside, and the audible and visual prompting assembly includes an indicator light (10), a start switch (11), and a buzzer (12) installed on the electric box (7), and the limit switch (8), the indicator light (10), the buzzer (12), and the battery (9) are electrically connected.

4. The harvester telescoping unhooking distance measuring and reducing adjustment device of claim 2, wherein: The limiting plate (6) is located above the limit switch (8) and can contact the limit switch (8).

5. The harvester telescoping unhooking distance measuring and reducing adjustment device of claim 1, wherein: The elastic support assembly includes a spring guide rod (13) and a spring (14), the outer cover (1) is provided with a guide groove parallel to the central axis of the outer cover (1), the spring guide rod (13) is installed in the guide groove, the spring guide rod (13) is located below the limiting plate (6) and connected with the limiting plate (6) at the upper end, the spring (14) is sleeved outside the spring guide rod (13), and the two ends of the spring (14) are respectively abutted with the limiting plate (6) and the inner wall of the guide groove.

6. The harvester telescoping reach distance measuring and reducing adjustment device of claim 1, wherein: The lower end of the outer cover (1) is provided with an opening, and the outer cover (1) is installed with a lifting bottom sleeve (15), the lifting bottom sleeve (15) is fixedly connected with the outer cover (1) through a screw (16), and the upper end of the lifting bottom sleeve (15) extends to the inside of the outer cover (1) and abuts with the lower end of the position adjusting nut (4).

7. The harvester telescoping reach distance measuring and reducing adjustment device of claim 1, wherein: The upper end of the outer cover (1) is installed with a top cover (17) with a through hole in the center, and the upper end of the lifting sleeve (3) is installed with a fixing piece (18) abutting with the upper end of the limiting plate (6), and the outer diameter of the fixing piece (18) is smaller than the inner diameter of the through hole of the top cover (17).

8. The harvester telescoping reach distance measuring and reducing adjustment device of claim 1, wherein: The outer surface of the outer cover (1) is engraved with a scale value.

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