Harvester header oil cylinder convenient to replace

Abstract

The utility model relates to the technical field of harvester header oil cylinders, and discloses a harvester header oil cylinder convenient to replace, which comprises a mounting plate, an oil cylinder body and two first clamping frames, two second clamping frames are welded on one side of the mounting plate, a connecting shaft is arranged at one end of the oil cylinder body, the connecting shaft penetrates through a connecting lug at one end of the oil cylinder body, and the two second clamping frames are welded on the other end of the oil cylinder body. The first clamping frame and the second clamping frame are arranged, the first clamping frame and the connecting frame clamp the connecting shaft and are fixed through the fixing assembly, the positioning ring is clamped into the limiting groove, the connecting shaft is limited, and the connecting shaft and the connecting frame slide to the second clamping frame through the auxiliary sliding mechanism. The two ends of the connecting shaft are clamped into the grooves of the second clamping frame respectively, the locking mechanism is used for fixing the position of the first clamping frame, the oil cylinder is installed, the position of the header does not need to be adjusted, the oil cylinder can be installed well, and the oil cylinder installation convenience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of harvester header oil cylinders, and more specifically to a harvester header oil cylinder which is easy to replace. Background Art

[0002] At present, the cutting table of the harvester is lifted and retracted by the piston end of the oil cylinder to drive the cutting table to rise and fall around the connecting shaft seat.

[0003] After searching, a Chinese patent document with announcement number CN214788331U discloses a wheat harvester cutting table cylinder. A dustproof ring is arranged inside the sliding sleeve to prevent dust from entering the sliding sleeve, affecting the use of the cylinder and reducing the service life of the cylinder. When the cylinder is installed, the cylinder body end of the cylinder is connected to the fixed seat on the chassis, and the piston end is connected to the cutting table, which is mostly connected by a pin shaft. However, the lifting and lowering of the cutting table is controlled by the cylinder. After one end of the cylinder is installed, due to the heavy weight of the cutting table, it is not easy to adjust the position of the cutting table when installing the other end of the cylinder, resulting in difficulty in installing the cylinder. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a harvester header oil cylinder which is easy to replace, so as to solve the problems existing in the above-mentioned background technology.

[0005] The utility model provides the following technical solutions: a harvester header oil cylinder that is easy to replace, comprising a mounting plate, a cylinder body and two first clamping frames, two second clamping frames are welded to one side of the mounting plate, a connecting shaft is provided at one end of the cylinder body, the connecting shaft passes through a connecting ear at one end of the cylinder body, the connecting shaft is clamped by the first clamping frame and the second clamping frame, a connecting rod is welded between the two first clamping frames, a connecting frame is provided at the bottom of the two first clamping frames, and the first clamping frames are connected to the connecting frames by a fixing assembly, the first clamping frame cooperates with the connecting frame to clamp the connecting shaft, a locking mechanism for fixing the connecting rod is provided on one side of the mounting plate, and an auxiliary sliding mechanism for guiding the connecting frame is provided on one side of the mounting plate.

[0006] Furthermore, the fixing assembly includes an external hexagonal screw, one end of which passes through the connecting frame and the first clamping frame and is threadedly connected to the hexagonal nut.

[0007] Furthermore, the locking mechanism includes a fixed rod, one side of which is slidably connected to two guide rods, and one end of the guide rod passes through the fixed rod, one end of the two guide rods is welded with an L-shaped clamping plate, and the L-shaped clamping plate can clamp the connecting rod, the top of the L-shaped clamping plate is rotatably connected to a screw rod, and one end of the screw rod passes through the fixed rod and is threadedly connected to the fixed rod.

[0008] Furthermore, the auxiliary sliding mechanism includes a rotating frame, which is rotatably connected to one side of the mounting plate. One side of the mounting plate is provided with a limiting mechanism for limiting the angle of the rotating frame, and one end of the rotating frame is provided with an extension group.

[0009] Furthermore, the limiting mechanism includes two avoidance grooves, both of which are opened on one side of the mounting plate, and a support rod is rotatably connected between the inner walls on both sides of the two avoidance grooves. A plurality of slots are opened on one side of the rotating frame, and one end of the support rod can be inserted into the slot.

[0010] Furthermore, the extension group is a multi-section telescopic rod, and two ladder frames are welded to one side of the rotating frame.

[0011] Furthermore, the connecting shaft includes a central shaft and two side shafts, the circumferential outer walls of the two side shafts are welded with positioning rings, the arc surfaces of the two first clamping frames and the connecting frame are provided with limiting grooves, and the positioning rings can be snapped into the limiting grooves.

[0012] Furthermore, four corners of the mounting plate are provided with mounting holes.

[0013] Technical effects and advantages of the utility model:

[0014] 1. The utility model is provided with a first clamping frame and a second clamping frame. The first clamping frame and the connecting frame clamp the connecting shaft and use a fixing assembly to fix them. The positioning ring is inserted into the limiting groove to limit the connecting shaft. The connecting shaft and the connecting frame are slid to the second clamping frame through an auxiliary sliding mechanism, so that the two ends of the connecting shaft are respectively inserted into the grooves of the second clamping frame, and the position of the first clamping frame is fixed by a locking mechanism, thereby completing the installation of the oil cylinder. The oil cylinder can be installed without adjusting the position of the cutting platform, thereby improving the convenience of the installation of the oil cylinder.

[0015] 2. The utility model is provided with an auxiliary sliding mechanism, so that the connecting frame can slide along the multi-section telescopic rod to the second clamping frame. Two ladder frames are welded on one side of the rotating frame to guide the connecting frame so that the connecting frame passes over the protrusion at one end of the second clamping frame and directly falls into the groove of the second clamping frame, thereby improving the convenience of moving the oil cylinder.

[0016] 3. The utility model is provided with a limiting mechanism, and after the angle of the rotating frame is adjusted, one end of the support rod is inserted into the slot, thereby providing limiting support for the angle of the rotating frame and improving the fixing effect of the rotating frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0018] Figure 2 It is a partial enlarged structural schematic diagram of the utility model.

[0019] Figure 3 It is a schematic diagram of the partial decomposition structure of the utility model.

[0020] Figure 4 It is a schematic diagram of the enlarged structure of the rotating frame of the utility model.

[0021] Figure 5 It is a partial cross-sectional structural schematic diagram of the utility model.

[0022] The accompanying drawings are marked as follows: 1. mounting plate; 2. cylinder body; 3. screw rod; 4. fixing rod; 5. L-shaped clamping plate; 6. guide rod; 7. first clamping frame; 8. second clamping frame; 9. connecting shaft; 10. hexagonal nut; 11. connecting rod; 12. mounting hole; 13. avoidance groove; 14. support rod; 15. rotating frame; 16. limiting groove; 17. external hexagon screw; 18. connecting frame; 19. extension group; 20. ladder frame; 21. clamping groove; 22. center axis; 23. positioning ring; 24. side axis. DETAILED DESCRIPTION

[0023] The technical solution of the present invention will be clearly and completely described below in conjunction with the drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are merely illustrative, and the present invention is not limited to the various structures recorded in the following embodiments. All other implementations obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0024] Reference Figure 1-Figure 5The utility model provides a harvester header oil cylinder that is easy to replace, including a mounting plate 1, a cylinder body 2 and two first clamping frames 7. The four corners of the mounting plate 1 are provided with mounting holes 12 for mounting the mounting plate 1 to the harvester. Two second clamping frames 8 are welded on one side of the mounting plate 1. A connecting shaft 9 is provided at one end of the cylinder body 2. The connecting shaft 9 passes through a connecting ear at one end of the cylinder body 2. The connecting shaft 9 is clamped by the first clamping frame 7 and the second clamping frame 8. A connecting rod 11 is welded between the two first clamping frames 7. A connecting frame 18 is provided at the bottom of each first clamping frame 7, and the first clamping frame 7 and the connecting frame 18 are connected by a fixing assembly. The first clamping frame 7 and the connecting frame 18 cooperate to clamp the connecting shaft 9. The connecting shaft 9 includes a central shaft 22 and two side shafts 24. The circumferential outer walls of the two side shafts 24 are welded with positioning rings 23. The arc surfaces of the two first clamping frames 7 and the connecting frame 18 are provided with limiting grooves 16, and the positioning rings 23 can be inserted into the limiting grooves 16 to position the connecting shaft 9 to avoid the connection shaft 9 from being damaged during installation. The connecting shaft 9 is detached from the cylinder body 2 and the first clamping frame 7 and the connecting frame 18. A locking mechanism for fixing the connecting rod 11 is provided on one side of the mounting plate 1, and an auxiliary sliding mechanism for guiding the connecting frame 18 is provided on one side of the mounting plate 1. When in use, the extended end of the cylinder body 2 is first connected to the harvester's cutting table, and then the central shaft 22 is passed through the connecting ear at one end of the cylinder body 2, and the two side shafts 24 are respectively threaded to the two ends of the central shaft 22 to form the connecting shaft 9, and then the first clamping frame 7 and the connecting frame 18 are used to clamp the connecting shaft 9, so that the positioning ring 23 is inserted into the limiting groove 16, the connecting shaft 9 is limited, and fixed with a fixing assembly, and the connecting shaft 9 and the connecting frame 18 are slid to the second clamping frame 8 through the auxiliary sliding mechanism, so that the two ends of the connecting shaft 9 are respectively inserted into the grooves of the second clamping frame 8, and the locking mechanism is used to fix the position of the first clamping frame 7, thereby completing the installation of the cylinder, and the cylinder can be installed without adjusting the position of the cutting table, thereby improving the convenience of cylinder installation.

[0025] Among them, the fixing component includes an external hexagon screw 17, one end of which passes through the connecting frame 18 and the first clamping frame 7 and is threadedly connected with the hexagonal nut 10 to fix the first clamping frame 7 and the connecting frame 18 so that it is easy to slide at the auxiliary sliding mechanism.

[0026] Among them, the locking mechanism includes a fixed rod 4, one side of the fixed rod 4 is slidably connected to two guide rods 6, and one end of the guide rod 6 passes through the fixed rod 4, one end of the two guide rods 6 is welded with an L-shaped clamping plate 5, and the L-shaped clamping plate 5 can clamp the connecting rod 11, the top of the L-shaped clamping plate 5 is rotatably connected to the screw rod 3, and one end of the screw rod 3 passes through the fixed rod 4 and is threadedly connected to the fixed rod 4. When the connecting shaft 9 is clamped into the groove of the second clamping frame 8, the screw rod 3 is rotated, and the screw rod 3 can drive the L-shaped clamping plate 5 and the guide rod 6 to move downward, so that the L-shaped clamping plate 5 clamps the connecting rod 11, completes the fixation of the first clamping frame 7, and makes the first clamping frame 7 and the second clamping frame 8 clamp the connecting shaft 9, completing the installation of the cylinder.

[0027] Among them, the auxiliary sliding mechanism includes a rotating frame 15, which is rotatably connected to one side of the mounting plate 1. One side of the mounting plate 1 is provided with a limiting mechanism for limiting the angle of the rotating frame 15. One end of the rotating frame 15 is provided with an extension group 19. The extension group 19 is a multi-section telescopic rod, so that the length of the rotating frame 15 can be extended, so that the connecting frame 18 can slide along the multi-section telescopic rod to the second clamping frame 8. Two ladder frames 20 are welded on one side of the rotating frame 15 to guide the connecting frame 18 so that the connecting frame 18 passes over the protrusion at one end of the second clamping frame 8 and directly falls into the groove of the second clamping frame 8, thereby improving the convenience of moving the cylinder.

[0028] Among them, the limiting mechanism includes two avoidance grooves 13, and the two avoidance grooves 13 are both opened on one side of the mounting plate 1. A support rod 14 is rotatably connected between the inner walls on both sides of the two avoidance grooves 13. A plurality of slots 21 are opened on one side of the rotating frame 15, and one end of the support rod 14 can be inserted into the slot 21. After the angle of the rotating frame 15 is adjusted, one end of the support rod 14 is inserted into the slot 21, thereby limiting the angle of the rotating frame 15 and improving the fixing effect of the rotating frame 15.

[0029] The working principle of the utility model is as follows: when in use, first connect the extended end of the oil cylinder body 2 with the harvester's header, then pass the central shaft 22 through the connecting ear at one end of the oil cylinder body 2, and thread the two side shafts 24 to the two ends of the central shaft 22 to form a connecting shaft 9, and then use the first clamping frame 7 and the connecting frame 18 to clamp the connecting shaft 9, so that the positioning ring 23 is inserted into the limiting groove 16 to limit the connecting shaft 9, and one end of the external hexagon screw 17 passes through the connecting frame 18 and the first clamping frame 7 and is threadedly connected to the hexagonal nut 10, and the first clamping frame 7 and the connecting frame 1 8 is fixed, the connecting frame 18 and the first clamping frame 7 are pulled to make the connecting frame 18 and the connecting shaft 9 slide on the multi-section telescopic rod and pass over the ladder frame 20, so that the two ends of the connecting shaft enter the grooves of the two second clamping frames 8 respectively, and the screw rod 3 is rotated. The screw rod 3 can drive the L-shaped clamping plate 5 and the guide rod 6 to move downward, so that the L-shaped clamping plate 5 clamps the connecting rod 11, and the first clamping frame 7 is fixed. The first clamping frame 7 and the second clamping frame 8 clamp the connecting shaft 9, and the installation of the oil cylinder is completed. There is no need to adjust the position of the cutting table, and the oil cylinder can be installed, which improves the convenience of the installation of the oil cylinder.

[0030] Finally, a few points should be explained: In the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0031] In the drawings of the embodiments disclosed by the present invention, only the structures related to the embodiments disclosed by the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other.

Claims

1. A harvester header oil cylinder that is easy to replace, comprising a mounting plate (1), an oil cylinder body (2) and two first clamping frames (7), characterized in that: One side of the mounting plate (1) is fixedly connected to two second clamping frames (8); one end of the oil cylinder body (2) is provided with a connecting shaft (9); the connecting shaft (9) passes through a connecting ear at one end of the oil cylinder body (2); the connecting shaft (9) is clamped by the first clamping frame (7) and the second clamping frame (8); a connecting rod (11) is fixedly connected between the two first clamping frames (7); a connecting frame (18) is provided at the bottom of the two first clamping frames (7); and the first clamping frames (7) and the connecting frame (18) are connected via a fixing assembly; the first clamping frames (7) and the connecting frame (18) cooperate to clamp the connecting shaft (9); one side of the mounting plate (1) is provided with a locking mechanism for fixing the connecting rod (11); and one side of the mounting plate (1) is provided with an auxiliary sliding mechanism for guiding the connecting frame (18).

2. The easily replaceable harvester header oil cylinder according to claim 1, characterized in that: The fixing assembly comprises an external hexagonal screw (17), one end of which passes through a connecting frame (18) and a first clamping frame (7) and is threadedly connected to a hexagonal nut (10).

3. The easily replaceable harvester header oil cylinder according to claim 1, characterized in that: The locking mechanism comprises a fixed rod (4), one side of the fixed rod (4) is slidably connected to two guide rods (6), and one end of the guide rod (6) passes through the fixed rod (4), one end of the two guide rods (6) is fixedly connected to an L-shaped clamping plate (5), and the L-shaped clamping plate (5) can clamp the connecting rod (11), the top of the L-shaped clamping plate (5) is rotatably connected to a screw rod (3), and one end of the screw rod (3) passes through the fixed rod (4) and is threadedly connected to the fixed rod (4).

4. The easily replaceable harvester header oil cylinder according to claim 1, characterized in that: The auxiliary sliding mechanism comprises a rotating frame (15), the rotating frame (15) is rotatably connected to one side of the mounting plate (1), one side of the mounting plate (1) is provided with a limiting mechanism for limiting the angle of the rotating frame (15), and one end of the rotating frame (15) is provided with an extension group (19).

5. The easily replaceable harvester header oil cylinder according to claim 4, characterized in that: The limiting mechanism comprises two avoidance grooves (13), both of which are provided on one side of the mounting plate (1), and a support rod (14) is rotatably connected between the inner walls on both sides of the two avoidance grooves (13), and a plurality of clamping grooves (21) are provided on one side of the rotating frame (15), and one end of the support rod (14) can be clamped into the clamping groove (21).

6. The easily replaceable harvester header oil cylinder according to claim 4, characterized in that: The extension group (19) is a multi-section telescopic rod, and one side of the rotating frame (15) is fixedly connected to two ladder frames (20).

7. The easily replaceable harvester header oil cylinder according to claim 1, characterized in that: The connecting shaft (9) comprises a central shaft (22) and two side shafts (24); the circumferential outer walls of the two side shafts (24) are fixedly connected with positioning rings (23); the arc surfaces of the two first clamping frames (7) and the connecting frame (18) are provided with limiting grooves (16), and the positioning rings (23) can be snapped into the limiting grooves (16).

8. The easily replaceable harvester header oil cylinder according to claim 1, characterized in that: The four corners of the mounting plate (1) are each provided with mounting holes (12).

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