Safety switch applied to main clutch of crawler corn machine
By designing a rocker switch with a self-locking mechanism, the safety accident caused by accidental activation of the main clutch engagement switch during startup of a tracked corn harvester has been solved. This effectively prevents accidents caused by accidental activation of the main clutch engagement switch during startup, simplifying operation and reducing the failure rate.
Patent Information
- Application Number
- CN202423115057.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-17
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2034-12-17
AI Technical Summary
The tracked corn harvester may cause the header to run if the main clutch is accidentally activated while it is in the start-up state, posing a serious safety hazard. The existing dual-switch series design has the risk of accidental activation and increases the failure rate.
Design a safety switch that includes a controller, a solenoid valve, and a rocker switch. Employ a self-locking mechanism and use a single switch to control the engagement and disengagement of the main clutch, preventing accidental activation that could cause the cutting table to malfunction.
It effectively prevents safety accidents caused by accidental activation of the main clutch switch when the tracked corn harvester is in the starting state, simplifies operation, and reduces the failure rate.
Smart Images
Figure CN223770987U_ABST
Abstract
Description
Technical Field
[0001] This utility model is a safety switch for the main clutch of a tracked corn harvester. Background Technology
[0002] Tracked corn harvesters are large agricultural machines commonly used for harvesting corn and other grain crops in fields. These machines use sharp blades on the header to cut the crop, while simultaneously using powerful suction to pull the material into the machine. However, the high-speed rotating blades and suction of these machines can pose a danger to people. The main dangers come from the following aspects: 1. Blade injuries: Corn harvesters, like other harvesters, use sharp rotating blades to cut crops. Accidental contact with these blades can cause serious injury, even death. 2. Suction injuries: The suction of these machines is very strong, sometimes even enough to suck a person into the machine. Once sucked in, in addition to possible cuts from the blades, there is a risk of suffocation or other internal injuries. The header does not operate immediately after starting the corn harvester; it only operates after the main clutch is engaged. When a person is standing near the header or repairing the machine, if the main clutch is accidentally engaged in the cab, a person could be pulled into the machine, posing a significant safety hazard. The main clutch engagement switch of corn harvesters on the market is usually composed of two independent switches connected in series. Although this also serves to prevent accidental activation, there is still a possibility that both switches may be accidentally activated at the same time, and having an extra switch also increases the failure rate. Utility Model Content
[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a safety switch for the main clutch of a tracked corn harvester.
[0004] A safety switch for the main clutch of a tracked corn harvester includes a controller, a solenoid valve, and a switch. The switch is a rocker switch. The switch includes a switch base and a switch cover. The middle part of the switch cover is hinged to the middle part of the switch base. A self-locking mechanism is provided between the switch cover and the switch base. The self-locking mechanism includes a self-locking component and a limiting platform. The limiting platform is located at the left end of the switch base. A mounting hole is provided at the left end of the switch cover. The self-locking component includes a head and a body. The body is connected below the head. The width of the head is greater than the width of the mounting hole, and the size of the body is smaller than the size of the mounting hole. The bottom surface of the body is located above the limiting platform. A first clearance groove is provided in front of or behind the limiting platform.
[0005] Furthermore, the self-locking component has multiple guide posts below its head, and the bottom of each guide post has an outward limiting protrusion. The lower edge of the switch cover mounting hole has a boss that mates with the limiting protrusion.
[0006] Furthermore, the switch cover has a bottomless structure, with a support column in the middle of the upper inner wall. The bottom of the support column is spherical, and connecting plates are provided on both sides of the support column. Connecting holes are provided on the sides of the connecting plates. A connecting seat is provided in the middle of the upper surface of the switch base. A second clearance groove is provided in the center of the connecting seat. The support column is inserted into the second clearance groove. Pins are provided on both sides of the connecting seat. The pins are used for assembly with the connecting holes.
[0007] Furthermore, the inner side of the connecting plate is provided with a first guide surface, which extends from the bottom of the connecting plate to the edge of the lower side of the connecting hole, and the upper section of the end of the pin is provided with a second guide surface.
[0008] Furthermore, both the first guide surface and the second guide surface are inclined surfaces.
[0009] Furthermore, a handle is provided on the upper surface of the switch cover.
[0010] Beneficial effects: Compared with the prior art, this utility model solves a series of safety accidents caused by accidental activation of the main clutch engagement switch when the tracked corn harvester is in the start-up state by using a self-locking component. Compared with the dual-switch series main clutch engagement switch on the market, only one switch is needed to solve the problem of accidental activation. Compared with the dual-switch series main clutch safety switch, it is simpler and more efficient. Attached Figure Description
[0011] Figure 1 This is a front view of a safety switch used in the main clutch of a tracked corn harvester.
[0012] Figure 2 This is a schematic diagram of a switch socket;
[0013] Figure 3 This is a schematic diagram of the opening and closing cover;
[0014] Figure 4 This is a schematic diagram from another perspective of the switch cover;
[0015] Figure 5 This is a schematic diagram of a self-locking component;
[0016] In the diagram, 1. Switch cover, 2. Switch base, 3. Limiting platform, 4. First limiting groove, 5. Connecting seat, 6. Second clearance groove, 7. Mounting hole, 8. Boss, 9. Support column, 10. Connecting plate, 11. Connecting hole, 12. First guide surface, 13. Body, 14. Guide post, 15. Head, 16. Limiting protrusion, 17. Pin, 18. Second guide surface. Detailed Implementation
[0017] To enhance understanding of this utility model, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. These embodiments are only used to explain the present utility model and do not constitute a limitation on the scope of protection of the present utility model.
[0018] like Figure 1-5 As shown, the components are: switch cover 1, switch base 2, limiting platform 3, first limiting groove 4, connecting seat 5, second clearance groove 6, mounting hole 7, boss 8, support column 9, connecting plate 10, connecting hole 11, first guide surface 12, body 13, guide post 14, head 15, limiting protrusion 16, pin 17, second guide surface 18.
[0019] A safety switch for the main clutch of a tracked corn harvester includes a controller, a solenoid valve, and a switch. The switch is a rocker switch. The switch includes a switch base and a switch cover. The middle part of the switch cover is hinged to the middle part of the switch base. A self-locking mechanism is provided between the switch cover and the switch base. The self-locking mechanism includes a self-locking component and a limiting platform. The limiting platform is located at the left end of the switch base. A mounting hole is provided at the left end of the switch cover. The self-locking component includes a head and a body. The body is connected below the head. The width of the head is greater than the width of the mounting hole, and the size of the body is smaller than the size of the mounting hole. The bottom surface of the body is located above the limiting platform.
[0020] In this example, the self-locking component has multiple guide posts below its head, and the bottom of each guide post has an outward limiting protrusion. The edge of the switch cover mounting hole has a boss that mates with the limiting protrusion.
[0021] In this example, the switch cover has a bottomless structure. Inside, a support column is located in the middle of the upper inner wall. The bottom of the support column is spherical. Connecting plates are located on both sides of the support column. Connecting holes are located on the sides of the connecting plates. A connecting seat is located in the middle of the upper surface of the switch base. A second clearance groove is located in the center of the connecting seat. The support column is inserted into the second clearance groove. Pins are located on both sides of the connecting seat. The pins are used to assemble with the connecting holes. A first clearance groove is formed between the limiting platform and the connecting seat.
[0022] In this example, the inner side of the connecting plate is provided with a first guide surface, which extends from the bottom of the connecting plate to the lower edge of the connecting hole, and the upper section of the end of the pin is provided with a second guide surface.
[0023] In this example, both the first guide surface and the second guide surface are inclined surfaces.
[0024] In this example, a handle is provided on the upper surface of the switch cover.
[0025] Instructions for use: When the controller receives a signal command from the switch, it outputs voltage to the corresponding valve to make it work. The main clutch rocker switch controls the engagement and disengagement of the main clutch by feeding back the connection signal to the controller. The self-locking component is located on the engaged side, because there is only danger if the clutch is engaged by accidental switch contact.
[0026] like Figure 1When the switch is in the disengaged position, the bottom of the self-locking component is pressed against the limiting platform. When the rocker switch needs to be turned to the engaged position, the self-locking component is moved so that the body is placed in the clearance groove and no longer pressed against the limiting platform, thus no longer restricting the movement of the rocker switch. At this time, the rocker switch is turned to engage.
[0027] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A safety switch applied to the main clutch of a track-type corn planter, characterized in that, The utility model relates to a switch, including controller, solenoid valve, switch, the switch is the switch of hinged -plate type, the switch includes switch seat and switch cover, the middle part of switch cover is hinged with the middle part of switch seat, be equipped with self -locking mechanism between switch cover and switch seat, the self -locking mechanism includes self -locking piece, limiting table, the limiting table sets up in the left end of switch seat, be equipped with mounting hole in the left end of switch cover, the self -locking piece includes head, body, body connection in the below of head, the width of head is greater than the width of mounting hole, the size of body is less than the size of mounting hole, the bottom surface of body is located in the above of limiting table, the front or rear of limiting table is equipped with first let -go groove.
2. The safety switch for use in the main clutch of a track-layer corn planter according to claim 1, characterized in that, The bottom of the guide column is equipped with the limiting protrusion outward, the lower side of the edge of switch cover mounting hole is equipped with the boss that cooperates with limiting protrusion.
3. The safety switch for use in the main clutch of a track-layer corn planter according to claim 1, wherein, The switch cover is bottomless structure, and the middle part of the inner wall in the upper side of its inside is equipped with the support column, the bottom of support column is spherical surface, the both sides of support column are equipped with the connecting plate, the side of connecting plate is equipped with the connecting hole, the middle part of the upper end surface of switch seat is equipped with the connecting seat, the center of connecting seat is equipped with the second let -go groove, support column inserts in the second let -go groove, the both sides of connecting seat are equipped with the pin shaft, and the pin shaft is used with connecting hole assembly.
4. The safety switch for use in the main clutch of a track-layer corn planter according to claim 3, wherein, The inner side of connecting plate is equipped with the first guide surface, the first guide surface extends from the bottom of connecting plate to the edge of the lower side of connecting hole, and the end of pin shaft is equipped with the second guide surface.
5. A safety switch for use in a main clutch of a track-layer corn planter as defined in claim 4, wherein, The first guide surface and the second guide surface are both inclined surfaces.
6. The safety switch for use in the main clutch of a track-layer corn planter according to claim 1, wherein, The upper end surface of switch cover is equipped with the handle.