Power control mechanism of agricultural machine

Abstract

The utility model belongs to the technical field of agricultural machinery, and particularly relates to an agricultural machinery power control mechanism which comprises an agricultural machinery rack, a fixing plate is fixedly connected to the middle of the agricultural machinery rack, a four-bar mechanism is arranged on the fixing plate, and a transmission rope and a connecting rod structure are connected to the four-bar mechanism in a transmission mode. The end, away from the four-connecting-rod mechanism, of the transmission rope is in transmission connection with the power output clutch, and the end, away from the four-connecting-rod mechanism, of the connecting rod structure is rotationally connected with the middle of the rotating base. By means of the structure, the agricultural machine power control mechanism has a good automatic control function, manual participation is reduced, and use of agricultural machines is facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of agricultural machinery, and in particular relates to a power control mechanism for agricultural machinery. Background Art

[0002] In the prior art, agricultural tractors have a main clutch and a power output clutch. The main clutch controls the gear shifting and driving, and the power output clutch can control the driving structure to drive the rear agricultural implement to move, so as to perform agricultural operations, and it is also necessary to control whether the agricultural implement is running or not. In actual use, the staff needs to operate three power output clutches in the control room at the same time, namely: vehicle movement, agricultural implement lifting and lowering, and agricultural implement operation. The three power output clutches make the staff's operation relatively cumbersome, require proficiency, and reduce work efficiency. Therefore, there is an urgent need for a power output clutch that can automatically control the power output, so that the power output clutch disengages after the agricultural implement is raised, and the agricultural implement stops rotating. After lowering, the power output clutch engages to rotate the agricultural implement to reduce the workload of the staff. Utility Model Content

[0003] The purpose of the utility model is to provide an agricultural machinery power control mechanism to solve the above problems.

[0004] To achieve the above purpose, the utility model provides the following solutions:

[0005] A power control mechanism for agricultural machinery comprises an agricultural machinery frame, the top of the agricultural machinery frame is rotatably connected to a rotating seat, the bottom of the agricultural machinery frame is rotatably connected to a driving cylinder, the end of the output shaft of the driving cylinder is rotatably connected to the middle part of the rotating seat, the end of the rotating seat away from the agricultural machinery frame is rotatably connected to one end of a lifting arm, the other end of the lifting arm is rotatably connected to the middle part of the output arm, one end of the output arm is rotatably connected to the bottom of the agricultural machinery frame, the middle part of the agricultural machinery frame is fixedly connected to a fixing plate, a four-bar mechanism is provided on the fixing plate, a transmission rope and a connecting rod structure are transmission-connected to the four-bar mechanism, the end of the transmission rope away from the four-bar mechanism is transmission-connected to a power output clutch, and the end of the connecting rod structure away from the four-bar mechanism is rotatably connected to the middle part of the rotating seat.

[0006] Preferably, the four-bar linkage mechanism includes a first rotating plate, a second rotating plate, and a third rotating plate, one end of the first rotating plate is rotatably connected to the fixed plate via a first rotating shaft, the other end of the first rotating plate is connected to one end of the transmission rope, the middle part of the first rotating plate is rotatably connected to one end of the second rotating plate via a second rotating shaft, the other end of the second rotating plate is rotatably connected to one end of the third rotating plate via a connecting shaft, the connecting rod structure is rotatably connected to the connecting shaft, and the other end of the third rotating plate is rotatably connected to the fixed plate via a third rotating shaft.

[0007] Preferably, a connecting end is provided at one end of the first rotating plate away from the first rotating shaft, and one end of the transmission rope is clamped with the connecting end.

[0008] Preferably, the distance between the first rotating shaft and the second rotating shaft is equal to the distance between the first rotating shaft and the third rotating shaft.

[0009] Preferably, the distance between the connecting shaft and the second rotating shaft is equal to the distance between the connecting shaft and the third rotating shaft.

[0010] Preferably, a fixed tripod is fixedly connected to one side of the fixed plate, and one end of the third rotating shaft is fixedly connected to one end of the fixed tripod.

[0011] Preferably, the connecting rod structure includes a connecting rod, one end of which is provided with a connecting sleeve, the connecting sleeve is rotatably connected to the outer side of the connecting shaft, the other end of the connecting rod is threadedly connected to a threaded rod, and the end of the threaded rod away from the connecting rod is rotatably connected to the rotating seat.

[0012] Compared with the prior art, the utility model has the following advantages and technical effects:

[0013] This device sets a four-bar linkage. When the driving oil cylinder on the agricultural machinery frame drives the rotating seat to lift, thereby driving the lifting arm and the output arm to move together, the connecting rod structure is driven by the rotating seat to move upward, thereby driving the four-bar linkage below to move, driving the transmission rope to move, and then pulling the power output clutch, so that the power output clutch can be controlled. This structural setting has a good automatic control function, reduces manual participation, and facilitates the use of agricultural machinery.

[0014] By utilizing these structures, an agricultural machinery power control mechanism is realized which has good automatic control functions, reduces manual participation, and facilitates the use of agricultural machinery. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor:

[0016] Figure 1 This is a schematic diagram of the overall structure of the device after installation;

[0017] Figure 2 This is a schematic diagram of the overall structure of the other side after the device is installed;

[0018] Figure 3 It is a structural schematic diagram of the device;

[0019] Figure 4 is a structural schematic diagram of the other side of the device;

[0020] Figure 5 This is a front view of the device when it is not lifted;

[0021] Figure 6 This is a front view of the device after it is lifted;

[0022] Figure 7 This is a front view of the device after further lifting.

[0023] Among them, 1. agricultural machinery frame; 2. rotating seat; 3. driving cylinder; 4. lifting arm; 5. output arm; 6. fixing plate; 7. four-bar linkage; 8. transmission rope; 9. connecting rod structure; 10. fixed tripod; 701. first rotating plate; 702. second rotating plate; 703. third rotating plate; 704. connecting shaft; 705. connecting end; 901. connecting rod; 902. threaded rod; 903. connecting sleeve. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0026] Reference Figures 1 to 7 The utility model discloses an agricultural machinery power control mechanism, including an agricultural machinery frame 1, a rotating seat 2 is rotatably connected to the top of the agricultural machinery frame 1, a driving cylinder 3 is rotatably connected to the bottom of the agricultural machinery frame 1, the end of the output shaft of the driving cylinder 3 is rotatably connected to the middle part of the rotating seat 2, one end of the rotating seat 2 away from the agricultural machinery frame 1 is rotatably connected to one end of a lifting arm 4, the other end of the lifting arm 4 is rotatably connected to the middle part of an output arm 5, one end of the output arm 5 is rotatably connected to the bottom of the agricultural machinery frame 1, a fixing plate 6 is fixedly connected to the middle part of the agricultural machinery frame 1, a four-bar linkage 7 is provided on the fixing plate 6, a transmission rope 8 and a connecting rod structure 9 are transmission-connected to the four-bar linkage 7, one end of the transmission rope 8 away from the four-bar linkage 7 is transmission-connected to a power output clutch, and one end of the connecting rod structure 9 away from the four-bar linkage 7 is rotatably connected to the middle part of the rotating seat 2.

[0027] Generally, when agricultural machinery is in operation, the driving cylinder 3 on the agricultural machinery frame 1 drives the rotating seat 2 to lift, thereby driving the lifting arm 4 and the output arm 5 to move together. At this time, it is necessary to manually control the power output clutch to make the machine on the output arm 5 run or stop running. It is not convenient to additionally control the opening and closing of the power output clutch.

[0028] This device is provided with a four-bar linkage 7. When the driving oil cylinder 3 on the agricultural machinery frame 1 drives the rotating seat 2 to lift, thereby driving the lifting arm 4 and the output arm 5 to move together, the connecting rod structure 9 is driven by the rotating seat 2 to move upward, thereby driving the four-bar linkage 7 below to move, driving the transmission rope 8 to move, and then pulling the power output clutch, so that the power output clutch can be controlled to engage or disengage. The setting of this structure has a good automatic control function, reduces manual participation, and facilitates the use of agricultural machinery.

[0029] A further optimized solution is that the four-bar linkage 7 includes a first rotating plate 701, a second rotating plate 702, and a third rotating plate 703. One end of the first rotating plate 701 is rotatably connected to the fixed plate 6 via a first rotating shaft, the other end of the first rotating plate 701 is connected to one end of the transmission rope 8, the middle part of the first rotating plate 701 is rotatably connected to one end of the second rotating plate 702 via a second rotating shaft, the other end of the second rotating plate 702 is rotatably connected to one end of the third rotating plate 703 via a connecting shaft 704, the connecting rod structure 9 is rotatably connected to the connecting shaft 704, and the other end of the third rotating plate 703 is rotatably connected to the fixed plate 6 via a third rotating shaft.

[0030] According to a further optimized solution, a connecting terminal 705 is provided at one end of the first rotating plate 701 away from the first rotating shaft, and one end of the transmission rope 8 is clamped with the connecting terminal 705 .

[0031] According to a further optimization scheme, the distance between the first rotating shaft and the second rotating shaft is equal to the distance between the first rotating shaft and the third rotating shaft.

[0032] According to a further optimization scheme, the distance between the connecting shaft 704 and the second rotating shaft is equal to the distance between the connecting shaft 704 and the third rotating shaft.

[0033] Such a structural arrangement allows the first rotating plate 701 to rotate. Before the second rotating shaft is aligned with the third rotating shaft, the first rotating plate 701 can pull the transmission rope 8, thereby allowing the transmission rope 8 to pull the power output clutch to disengage; and when the second rotating shaft is aligned with the third rotating shaft, pulling the connecting rod structure 9 at this time can only pull the second rotating plate 702 and the third rotating plate 703 to rotate, and will not drive the first rotating plate 701 to rotate, thereby preventing the transmission rope 8 from being further pulled, and then causing the transmission rope 8 to stop pulling the power output clutch.

[0034] According to a further optimized solution, a fixed tripod 10 is fixedly connected to one side of the fixed plate 6 , and one end of the third rotating shaft is fixedly connected to one end of the fixed tripod 10 .

[0035] A further optimized solution is that the connecting rod structure 9 includes a connecting rod 901, one end of which is provided with a connecting sleeve 903, the connecting sleeve 903 is rotatably connected to the outer side of the connecting shaft 704, the other end of the connecting rod 901 is threadedly connected to a threaded rod 902, and the end of the threaded rod 902 away from the connecting rod 901 is rotatably connected to the rotating seat 2.

[0036] By controlling the connection position between the threaded rod 902 and the connecting rod 901 , the length of the connecting rod structure 9 can be easily adjusted to adapt to agricultural machinery of various sizes.

[0037] Reference Figure 5 As shown in , when the connecting rod structure 9 is not subjected to force, that is, the driving cylinder 3 on the upper agricultural machinery frame 1 does not lift the driving rotating seat 2, and the lifting arm 4 and the output arm 5 are in a low position, the agricultural implement needs to have the power to run. At this time, the transmission rope 8 is in a state of no force, so that the power output clutch is in an engaged state, the agricultural implement has the power to run, and the agricultural implement can run stably.

[0038] Reference Figure 6 As shown, when the connecting rod structure 9 is lifted upward by the thrust of the driving cylinder 3, the driving cylinder 3 on the agricultural machine frame 1 drives the rotating seat 2 to lift, thereby driving the lifting arm 4 and the output arm 5 to move together. Before the second rotating shaft is aligned with the third rotating shaft, the first rotating plate 701 can pull the transmission rope 8. At this time, the power output clutch is pulled by the transmission rope 8 and is separated, and the agricultural implement loses power.

[0039] Reference Figure 7 As shown, after the second rotating shaft is aligned with the third rotating shaft under the push of the driving cylinder 3, the driving cylinder 3 pushes the driving rotating seat 2 to lift, and the driving rotating seat 2 then pulls the connecting rod structure 9, which can only pull the second rotating plate 702 and the third rotating plate 703 to rotate, but will not drive the first rotating plate 701 to rotate, so that the transmission rope 8 is not pulled. Such a structural setting can ensure that the transmission rope 8 will not have too long a stroke, can protect the power output clutch from damage, and also allow the rotating seat 2 and the output arm 5 on the agricultural machinery frame 1 to have sufficient lifting stroke.

[0040] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0041] The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. An agricultural machinery power control mechanism, comprising an agricultural machinery frame (1), the top of the agricultural machinery frame (1) is rotatably connected to a rotating seat (2), the bottom of the agricultural machinery frame (1) is rotatably connected to a driving cylinder (3), the end of the output shaft of the driving cylinder (3) is rotatably connected to the middle of the rotating seat (2), one end of the rotating seat (2) away from the agricultural machinery frame (1) is rotatably connected to one end of a lifting arm (4), the other end of the lifting arm (4) is rotatably connected to the middle of an output arm (5), and one end of the output arm (5) is rotatably connected to the bottom of the agricultural machinery frame (1), characterized in that: A fixing plate (6) is fixedly connected to the middle of the agricultural machinery frame (1); a four-bar linkage (7) is provided on the fixing plate (6); a transmission rope (8) and a connecting rod structure (9) are transmission-connected to the four-bar linkage (7); one end of the transmission rope (8) away from the four-bar linkage (7) is transmission-connected to a power output clutch; and one end of the connecting rod structure (9) away from the four-bar linkage (7) is rotationally connected to the middle of the rotating seat (2).

2. The agricultural machinery power control mechanism according to claim 1, characterized in that: The four-bar linkage (7) comprises a first rotating plate (701), a second rotating plate (702), and a third rotating plate (703); one end of the first rotating plate (701) is rotatably connected to the fixed plate (6) via a first rotating shaft; the other end of the first rotating plate (701) is connected to one end of the transmission rope (8); the middle part of the first rotating plate (701) is rotatably connected to one end of the second rotating plate (702) via a second rotating shaft; the other end of the second rotating plate (702) is rotatably connected to one end of the third rotating plate (703) via a connecting shaft (704); the connecting rod structure (9) is rotatably connected to the connecting shaft (704); and the other end of the third rotating plate (703) is rotatably connected to the fixed plate (6) via a third rotating shaft.

3. The agricultural machinery power control mechanism according to claim 2, characterized in that: A connecting end (705) is provided at one end of the first rotating plate (701) away from the first rotating shaft, and one end of the transmission rope (8) is clamped to the connecting end (705).

4. The agricultural machinery power control mechanism according to claim 2, characterized in that: The distance between the first rotating axis and the second rotating axis is equal to the distance between the first rotating axis and the third rotating axis.

5. The agricultural machinery power control mechanism according to claim 2, characterized in that: The distance between the connecting shaft (704) and the second rotating shaft is equal to the distance between the connecting shaft (704) and the third rotating shaft.

6. The agricultural machinery power control mechanism according to claim 2, characterized in that: A fixed tripod (10) is fixedly connected to one side of the fixed plate (6), and one end of the third rotating shaft is fixedly connected to one end of the fixed tripod (10).

7. The agricultural machinery power control mechanism according to claim 2, characterized in that: The connecting rod structure (9) comprises a connecting rod (901), one end of the connecting rod (901) is provided with a connecting sleeve (903), the connecting sleeve (903) is rotatably connected to the outer side of the connecting shaft (704), the other end of the connecting rod (901) is threadedly connected to a threaded rod (902), and the end of the threaded rod (902) away from the connecting rod (901) is rotatably connected to the rotating seat (2).

Images