Fan power control device

Abstract

The utility model discloses a fan power control device, and relates to the technical field of power transmission control. The device is used for controlling separation and combination of a clutch and comprises a support, and a separation action structure used for pushing a separation bearing of the clutch is installed on the support. An operating rod is installed on the support in a swinging mode, the operating rod is connected with a wire pulling structure used for pulling the separation action structure, and the separation action structure is connected with a reverse pulling force application structure; the operating rod is locked after the rod side connecting point of the stay wire structure crosses a dead point in the separation swing direction, and a locking position limiting structure is arranged on the support. The power separation and locking device not only realizes power separation and locking, but also facilitates power recombination, and is simple in structure and reliable in use.

Description

Technical Field

[0001] This utility model relates to the field of power transmission control technology, and in particular to a wind turbine power control device. Background Technology

[0002] Air-assisted sprayers are plant protection machines that use a powerful airflow provided by a fan to deliver mist droplets to plants. The engine output drives the fan, and a clutch connects the engine power source to the fan to control its start and stop. Considering transmission efficiency, engagement smoothness, manufacturing and usage costs, and the spraying scenarios, a dry disc clutch is most commonly used. This dry disc clutch is normally engaged, allowing the engine power to drive the fan. Power is cut off by pushing the release bearing to disengage the driven disc from the driving disc. While the air-assisted sprayer operates continuously, the clutch needs to disengage during scenarios such as turning the sprayer around, temporary equipment checks, or completing the job. This allows the fan to slow down and return to a stopped state, reducing energy consumption. Since these scenarios require continuous fan stoppage, using a conventional clutch pedal would require the operator to keep the pedal depressed for the duration of the stoppage, preventing other operations outside the driver's position and making it inconvenient to use. However, adding a disengagement locking mechanism to the clutch pedal would significantly affect the re-engagement operation. To address this, the inventors designed a control device that can lock the disengaged state while facilitating re-engagement, thus improving the situation. This invention was born from this design. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a wind turbine power control device that can both achieve power separation and locking and facilitate power reconnection, and has a simple structure and reliable use.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is: a fan power control device for controlling the disengagement and engagement of a clutch, including a front mounting bracket and a rear mounting seat. The rear mounting seat is equipped with a disengagement structure for pushing the disengagement bearing of the clutch. An operating lever is oscillatingly mounted on the front mounting bracket. A pull cable structure for pulling the disengagement structure is connected to the operating lever. The disengagement structure is connected to a counter-pull force structure. The operating lever is locked after the connection point on the rod side of the pull cable structure passes the dead point in the disengagement swing direction. The front mounting bracket is provided with a locking limit structure.

[0005] As a preferred technical solution, the pull cable structure includes a pull cable connector hinged to the operating lever, a pull cable head hinged to the free end of the pull cable connector, and a separation transmission pull cable connected to the pull cable head; a pull guide structure is provided between the pull cable head and the bracket.

[0006] As a preferred technical solution, the pull guide structure includes a pull guide pin provided on the pull cable head, and the bracket is provided with a pull guide groove corresponding to the pull guide pin.

[0007] As a preferred technical solution, the locking position limiting structure includes a swing shaft abutment provided on the pull wire connector, the swing shaft abutment being used to abut against the swing shaft of the operating rod after the operating rod reaches the locking position.

[0008] As a preferred technical solution, a cable protection sleeve is fixedly installed on the bracket and sleeved over the separation transmission cable.

[0009] As a preferred technical solution, the separation action structure includes a separation action shaft rotatably mounted on the bracket, a shift fork for pushing the clutch is fixedly provided on the separation action shaft, and a separation transmission rocker arm for pulling the cable structure is fixedly provided on the separation action shaft.

[0010] As a preferred technical solution, the anti-pull force structure includes an anti-pull force swing rod fixedly mounted on the separation action shaft, and an anti-pull force spring is connected between the anti-pull force swing rod and the bracket.

[0011] Due to the adoption of the above technical solution, the wind turbine power control device, used to control the disengagement and engagement of the clutch, includes a bracket. A disengagement structure for pushing the clutch's disengagement bearing is mounted on the bracket. An operating lever is oscillatingly mounted on the bracket, and a pull cable structure for pulling the disengagement structure is connected to the operating lever. The disengagement structure is connected to a counter-pull force structure. The operating lever locks after the rod-side connection point of the pull cable structure passes the dead point in the disengagement swing direction. The bracket is provided with a locking position limiting structure. In this invention, when the operating lever is not operated to pull the disengagement structure, the clutch remains engaged. When the operating lever is operated to pull the disengagement structure, and the rod-side connection point of the pull cable structure passes the dead point, the operating lever remains locked in that position under the force of the counter-pull force structure and the limitation of the locking position limiting structure, thus achieving disengagement and locking at the clutch. After manually reversing the operation of the operating lever, the operating lever can easily pass the dead point to return to its original position, and the clutch can be re-engaged. The operation of power re-engaging is relatively convenient. Furthermore, this utility model is assembled using only mechanical parts, has a simple structure, does not require additional connection to high-pressure oil, electricity or other power sources, and is reliable in use. Attached Figure Description

[0012] The following figures are intended only to illustrate and explain the present invention and do not limit the scope of the present invention. Wherein:

[0013] Figure 1 This is a three-dimensional structural schematic diagram of an embodiment of the present utility model;

[0014] Figure 2 yes Figure 1 Enlarged structural diagram of the control lever;

[0015] Figure 3 yes Figure 1 Enlarged structural diagram of the clutch;

[0016] Figure 4 yes Figure 1 A schematic diagram showing the lever's disengaged and locked state;

[0017] Figure 5 yes Figure 1 Enlarged structural diagram of the control lever.

[0018] In the diagram: 11-Front mounting bracket; 12-Rear mounting seat; 2-Separation mechanism; 21-Separation shaft; 22-Shift fork; 23-Separation transmission lever; 3-Operating lever; 4-Cable pull structure; 41-Cable pull connector; 42-Cable pull head; 43-Separation transmission cable; 44-Pull guide structure; 45-Pull guide pin; 46-Pull guide groove; 47-Cable pull protective sleeve; 5-Reverse pull force structure; 51-Reverse pull force lever; 52-Reverse pull force spring; 6-Locking limit structure; 61-Swing shaft abutment; 9-Clutch; 91-Separation bearing. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the following detailed description, only certain exemplary embodiments of the present invention are described by way of illustration. Undoubtedly, those skilled in the art will recognize that various modifications can be made to the described embodiments without departing from the spirit and scope of the present invention. Therefore, the drawings and description are illustrative in nature and not intended to limit the scope of the claims.

[0020] like Figures 1 to 5As shown, the fan power control device is used to control the disengagement and engagement of the clutch 9. Conventionally, the clutch 9 includes a housing, on which a driven plate, pressure plate, diaphragm, and release bearing 91 are mounted. The driven plate is splinedly connected to the fan input shaft. Under normal conditions, the driven plate engages with the driving plate at the engine power end, and the friction between them causes the engine power to be transmitted to the fan input shaft, forming a power connection. When the release bearing 91 is pushed, the spring force of the diaphragm causes the driven plate to disengage from the driving plate, achieving the effect of power disengagement. After the pushing force on the release bearing 91 is released, the driven plate re-engages with the driving plate. This is known technology, therefore the structural principle will not be described in detail here.

[0021] This device includes a front mounting bracket 11 and a rear mounting seat 12. The front mounting bracket 11 and the rear mounting seat 12 serve as mounting carriers for the various components of this embodiment. They can be flexibly configured according to actual needs, which is a conventional technique in the field. Therefore, they will not be described in detail here, and the specific structures of the front mounting bracket 11 and the rear mounting seat 12 are not fully illustrated in the accompanying drawings. Preferably, the front mounting bracket 11 is located in the driver's position of the sprayer, and the rear mounting seat 12 is located near the clutch. Accordingly, when the clutch is integrated into the gearbox, the housing of the gearbox can also serve as part of the rear mounting seat 12 for mounting the components of this embodiment.

[0022] The rear mounting base 12 is equipped with a separation mechanism 2 for actuating the release bearing 91 of the clutch 9. For example... Figure 1 , Figure 3 and Figure 4 As shown, the separation mechanism 2 in this embodiment includes a separation shaft 21 rotatably mounted on the rear mounting base 12, and a shift fork 22 for pushing the clutch 9 is fixedly mounted on the separation shaft 21. By driving the separation shaft 21 to rotate, the shift fork 22 can push the release bearing 91 to disengage the clutch 9; after the rotational driving force on the separation shaft 21 is released, the pushing force of the shift fork 22 disappears, and the clutch 9 re-engages.

[0023] like Figures 1 to 5 As shown, an operating lever 3 is sway-mounted on the front mounting bracket 11. Preferably, the operating lever 3 is mounted at the driver's position of the air-assisted sprayer for easy operation. A pull cable structure 4 for pulling the separation mechanism 2 is connected to the operating lever 3. The separation mechanism 2 is connected to a counter-pull force structure 5. The operating lever 3 locks after the connection point on the pull cable structure 4 passes the dead point in the separation swing direction. A locking limit structure 6 is provided on the front mounting bracket 11.

[0024] like Figure 3As shown, in this embodiment, a separation transmission lever 23 for pulling the cable structure 4 is fixedly provided on the separation shaft 21. The cable structure 4 pulls the separation transmission lever 23, thereby driving the separation shaft 21 to rotate and disengaging the clutch 9. After the cable structure 4 returns to its original position, the counter-pull force structure 5 causes the separation shaft 21 to rotate, the pushing action of the shift fork 22 disappears, and the clutch 9 re-engages. In this embodiment, the counter-pull force structure 5 includes a counter-pull force lever 51 fixedly mounted on the separation shaft 21, and a counter-pull force spring 52 connects the counter-pull force lever 51 to the rear mounting seat 12. Of course, the counter-pull force structure 5 can also use a torsion spring or a gas spring between the counter-pull force lever 51 and the rear mounting seat 12, which are equivalent technical variations and are all within the protection scope of this utility model.

[0025] like Figure 1 , Figure 2 and Figure 3 As shown, in this embodiment, when the operating lever 3 is not operated to pull the separation structure 2, the operating lever 3 is in its original position and the clutch 9 remains engaged.

[0026] like Figure 4 and Figure 5 As shown, when the fan needs to be stopped for a certain period of time due to situations such as turning the sprayer around, temporarily inspecting the equipment, or completing a task, the operating lever 3 is operated to pull the separation mechanism 2. After the rod-side connection point of the pull cable structure 4 passes the dead point, under the force of the counter-pull force structure 5 and the restriction of the locking position limiting structure 6, the operating lever 3 remains in that position and forms a lock, thus achieving separation and locking at the clutch 9. In this embodiment, the position where the operating lever 3 forms the separation lock is defined as the locking position.

[0027] When the clutch 9 needs to be re-engaged, the operating lever 3 can be manually reversed. The operating lever 3 can easily pass the dead point to return to its original position, and the clutch 9 can be re-engaged. The operation of re-engaging the power is relatively convenient.

[0028] Specifically, taking the swing axis of the operating lever 3 as the base point, when the rod-side connection point of the pull wire structure 4 is located on the opposite side of the pull point of the pull wire structure 4, it is the aforementioned dead point. The position of this dead point is easily understood by those skilled in the art in conjunction with conventional linkage structure knowledge, and will not be elaborated further here.

[0029] like Figure 2 and Figure 4As shown, the pull cable structure 4 in this embodiment includes a pull cable connector 41 that is hinged to the operating lever 3. The free end of the pull cable connector 41 is hinged to a pull cable head 42, and a separation transmission pull cable 43 is connected to the pull cable head 42. A pull guide structure 44 is provided between the pull cable head 42 and the front mounting bracket 11.

[0030] The pull guide structure 44 limits the direction of movement of the pull head 42, so that the separation transmission pull cable 43, especially the end of the separation transmission pull cable 43 connected to the pull head 42, can be pulled in a fixed direction, reducing friction with other components and reducing wear on the separation transmission pull cable 43. Under the guidance of the pull guide structure 44, the hinge point between the pull head 42 and the pull cable connector 41 constitutes the pull point of the aforementioned pull cable structure 4, and the hinge point between the pull cable connector 41 and the operating lever 3 constitutes the rod-side connection point of the aforementioned pull cable structure 4. Thus, with the swing axis of the operating lever 3 as the base point, when the hinge point between the pull cable connector 41 and the operating lever 3 is located on the opposite side of the hinge point between the pull cable connector 41 and the pull head 42, the hinge point between the pull cable connector 41 and the operating lever 3 reaches the dead point position.

[0031] The pull guide structure 44 described in this embodiment includes a pull guide pin 45 provided on the pull cable head 42, and a pull guide groove 46 corresponding to the pull guide pin 45 provided on the front mounting bracket 11, forming a guiding function through the pin and groove. Preferably, the hinge connection shaft between the pull cable head 42 and the pull cable connector 41 also serves as the pull guide pin 45 to simplify the structure.

[0032] The pull-wire connector 41 also serves as the locking position limiting structure 6. The pull-wire connector 41 is provided with a swing shaft abutment 61, which abuts against the swing shaft of the operating lever 3 after the operating lever 3 reaches the locking position. When the operating lever 3 is operated in the separation swing direction, and the hinge point between the pull-wire connector 41 and the operating lever 3 passes the dead point by a certain angle, i.e., after reaching the locking position, the swing shaft abutment 61 abuts against the swing shaft of the operating lever 3, restricting the operating lever 3 from continuing to swing in the separation swing direction. At this time, the force of the counter-pull force structure 5 can be decomposed into a component force towards the swing shaft of the operating lever 3 and a component force tangential to the swing shaft. Since the component force tangential to the swing shaft is consistent with the original separation swing direction of the operating lever 3, under the action of this component force, coupled with the restriction of the swing shaft abutment 61, the operating lever 3 can stably remain in the locking position, i.e., separation locking is achieved.

[0033] Although the swing shaft abutment 61 is shown in the figure as an arc-shaped notch adapted to the swing shaft of the operating lever 3, this is due to the shape limitation of the pull wire connector 41. Those skilled in the art will recognize that in actual settings, according to the aforementioned separation and locking principle, as long as the pull wire connector 41 is a part that abuts against the swing shaft of the operating lever 3 to lock and limit the position, the swing shaft abutment 61 can be formed, and its specific shape is not limited in this embodiment.

[0034] Preferably, a cable protection sleeve 47 is fixedly installed on the front mounting bracket 11 and the rear mounting seat 12, which is sleeved on the release transmission cable 43, to protect the release transmission cable 43, which has a large span from the driver's position to the vicinity of the clutch 9.

[0035] In this embodiment, by operating the lever 3 to the locked position, the locking position is maintained by the force of the counter-pull force structure 5 and the restriction of the locking position limiting structure 6, thus achieving the purpose of disengagement and locking. Manually operating the lever 3 in the reverse direction easily releases the locking position, allowing the clutch 9 to re-engage, making operation convenient. This embodiment is assembled using only mechanical parts, has a simple structure, does not require additional high-pressure oil or electric power sources, and is reliable in use.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A fan power control device for controlling the disengagement and engagement of a clutch, characterized in that: The device includes a front mounting bracket and a rear mounting base. The rear mounting base is equipped with a separation mechanism for actuating the release bearing of the clutch. An operating lever is oscillatingly mounted on the front mounting bracket. A pull cable structure for pulling the separation mechanism is connected to the operating lever. The separation mechanism is connected to a counter-pull force structure. The operating lever is locked after the connection point on the rod side of the pull cable structure passes the dead point in the separation swing direction. The front mounting bracket is provided with a locking limit structure.

2. The wind turbine power control device as described in claim 1, characterized in that: The pull cable structure includes a pull cable connector hinged to the operating lever, and a pull cable head is hinged to the free end of the pull cable connector. A separate transmission pull cable is connected to the pull cable head. A pull guide structure is provided between the pull cable head and the front mounting bracket.

3. The wind turbine power control device as described in claim 2, characterized in that: The pull guide structure includes a pull guide pin provided on the pull cable head, and a pull guide groove corresponding to the pull guide pin is provided on the front mounting bracket.

4. The wind turbine power control device as described in claim 2, characterized in that: The pull wire connector also serves as the locking position limiting structure. The pull wire connector is provided with a swing shaft abutment, which is used to abut against the swing shaft of the operating lever after the operating lever reaches the locking position.

5. The wind turbine power control device as described in claim 2, characterized in that: The front mounting bracket and the rear mounting base are fixedly mounted with cable protection sleeves that are fitted over the separation transmission cable.

6. The wind turbine power control device as described in claim 1, characterized in that: The separation mechanism includes a separation shaft rotatably mounted on the rear mounting base, a shift fork for pushing the clutch fixedly mounted on the separation shaft, and a separation transmission lever for pulling the cable structure fixedly mounted on the separation shaft.

7. The wind turbine power control device as described in claim 6, characterized in that: The anti-pull force structure includes an anti-pull force swing rod fixedly mounted on the separation action shaft, and an anti-pull force spring is connected between the anti-pull force swing rod and the rear mounting seat.

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