Rear cross beam of frame of agricultural machine

Abstract

The utility model discloses an agricultural machine frame rear cross beam which comprises a cross beam frame, one end of the cross beam frame is movably connected with a main bracket through a pin shaft, a gearbox is fixedly installed on the main bracket, one side of the gearbox is in transmission connection with a belt pulley, the front end of the gearbox is in transmission connection with a universal joint, and the front end of the universal joint is in transmission connection with a transmission shaft. The other end of the main bracket is connected with an auxiliary bracket in a sliding mode, an adjusting assembly is installed between the auxiliary bracket and the main bracket in a transmission mode, installation frames are fixedly installed on the auxiliary bracket and the main bracket correspondingly, and a supporting assembly is placed at the other end of the auxiliary bracket. A connecting plate is arranged on the main bracket and located at the top end of the gearbox, and a tensioning mechanism is movably connected into the connecting plate through a pin shaft. The multifunctional agricultural planting machine is comprehensive in function and convenient to use, the adjustable bracket is installed on the rear portion of the agricultural machine, the gearbox is installed on the bracket, and therefore different agricultural planting machines can be placed, driven and used.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machine frames, in particular to a rear cross beam of an agricultural machine frame. Background Art

[0002] The agricultural machine frame refers to the structural frame used to support and connect the various components of agricultural machinery. According to online information, there are many types of agricultural machine frames, including frames for various agricultural machinery such as hand tractors, micro-tillers, multi-functional rotary tillers, etc. These frames may have different sizes and load-bearing capacities to meet different operating requirements. The agricultural machine frame is an important part of agricultural machinery and plays an important role in improving agricultural production efficiency and ensuring the safety of farmers' operations. At present, agricultural drive vehicles are mainly four-wheel tractors. In order to better increase the scope of use of agricultural locomotives, a rear crossbeam is usually fixed at the rear end of the agricultural locomotive, and a frame is further installed on the rear crossbeam, so that devices such as straw machines, pole beaters, and weeders can be installed. However, the existing crossbeam frame structure is relatively simple and inconvenient to adjust, and is not very practical. Utility Model Content

[0003] The utility model aims to provide a rear cross beam of an agricultural machine frame to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a rear crossbeam of an agricultural machine frame, comprising a crossbeam frame, one end of the crossbeam frame is movably connected to a main bracket through a pin shaft, a gearbox is fixedly installed on the main bracket, one side of the gearbox is transmission-connected to a pulley, the front end of the gearbox is transmission-connected to a universal joint, the other end of the main bracket is slidably connected to a sub-bracket, an adjustment component is transmission-installed between the sub-bracket and the main bracket, and mounting frames are fixedly installed on the sub-bracket and the main bracket and are installed accordingly, a support component is placed on the other end of the sub-bracket, a connecting plate is arranged on the main bracket and at the top of the gearbox, and a tensioning mechanism is movably connected in the connecting plate through a pin shaft.

[0005] Preferably, the main bracket and the auxiliary bracket are both metal hollow tubes with square structures, wherein one end of the auxiliary bracket is embedded in a receiving groove inside the main bracket.

[0006] Preferably, adjustment grooves are provided on both sides of the outer wall of the main bracket, and a fixing bolt is installed through the auxiliary bracket. Both ends of the fixing bolt are placed in the adjustment groove and are screwed and connected with fixing nuts.

[0007] Preferably, the adjustment assembly is composed of a hand wheel, a screw rod, a spring and a sleeve, wherein one end of the sleeve is fixedly mounted at the center of the inner wall of the main bracket, and one end of the screw rod is embedded inside the other end of the sleeve.

[0008] Preferably, a spring is placed inside the sleeve, the other end of the spring is closely connected to the screw rod, the other end of the screw rod passes through the auxiliary bracket and is fixedly connected to a handwheel, and the screw rod is threadedly engaged with the auxiliary bracket.

[0009] Preferably, the tensioning mechanism consists of a first pull rod, a second pull rod, a fixed tube, a gear and a ratchet crank, wherein one end of the first pull rod and the second pull rod is provided with a connecting head, the other end of the first pull rod and the second pull rod is provided with a rack, and the racks are meshingly connected with gears.

[0010] Preferably, the gear is fixedly mounted inside the fixed tube and is rotationally connected, the ratchet crank is arranged and mounted on the outside of the fixed tube, and the ratchet crank is connected to the gear through a coupling transmission.

[0011] Preferably, the other end of the cross beam frame is movably mounted on the agricultural vehicle via a pin shaft, and a hydraulic pump is movably mounted on the cross beam frame and close to the main bracket via a pin shaft.

[0012] Preferably, the support assembly consists of a support foot, a nut and a spring, wherein the top end of the support foot passes through the auxiliary bracket and is screwed with the nut, and a spring is sleeved between the bottom of the auxiliary bracket and the support foot.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model is provided with a gearbox fixedly mounted on the main bracket, and a universal joint is installed on the gearbox for transmission, so as to facilitate further transmission connection to the agricultural locomotive. At the same time, a crossbeam frame and a tensioning mechanism are respectively connected to one end of the main bracket through a pin shaft, wherein a hydraulic pump is movably installed on the crossbeam frame, so as to facilitate better adjustment of the angle of the crossbeam frame by using the hydraulic pump, and two tensioning rods are connected inside the tensioning mechanism through gear transmission, and the rotation direction of the gear is controlled by using a ratchet crank, which is not only simple to operate but also safer, and a supporting assembly is provided at the other end of the auxiliary bracket, so as to better place and support the bracket as a whole, and further stably support and use devices such as straw machines, pole beaters, and weeders.

[0015] 2. The utility model provides a hollow storage groove inside the main bracket, and embeds one end of the sub-bracket in the storage groove, so as to provide stable support for the sub-bracket and adjust the position of the sub-bracket. An adjustment component is placed between the main bracket and the sub-bracket, and mounting frames are fixedly installed on the main bracket and the sub-bracket. In this way, not only can the mounting frame be used to install devices such as straw machines, pole beaters, and weeders, but also machines of different models and sizes can be adjusted, which makes the utility model more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a front view of the utility model;

[0018] Figure 3 It is a top view of the utility model;

[0019] Figure 4 It is an internal cross-sectional view of the tensioning mechanism of the utility model;

[0020] Figure 5 It is a schematic diagram of the connection between the ratchet crank handle and the fixed pipe of the utility model.

[0021] In the figure: 1. crossbeam frame; 2. main bracket; 21. connecting plate; 22. storage slot; 23. adjustment slot; 3. gearbox; 31. pulley; 32. universal joint; 4. auxiliary bracket; 41. fixing bolt; 5. adjustment assembly; 51. handwheel; 52. screw rod; 53. spring; 54. sleeve; 6. mounting frame; 7. support assembly; 71. support foot; 72. nut; 8. tensioning mechanism; 81. first pull rod; 82. second pull rod; 83. fixing pipe; 84. gear; 85. ratchet crank; 86. connector; 87. rack; 9. hydraulic pump. DETAILED DESCRIPTION

[0022] 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.

[0023] See also Figure 1-5 The utility model provides a technical solution: a rear cross beam of an agricultural machine frame, comprising a cross beam frame 1, one end of the cross beam frame 1 is movably connected to a main bracket 2 through a pin shaft, wherein the main bracket 2 and the auxiliary bracket 4 are both metal hollow tubes of a square structure, wherein one end of the auxiliary bracket 4 is embedded in a storage groove 22 inside the main bracket 2, and adjustment grooves 23 are provided on both sides of the outer wall of the main bracket 2, and a fixing bolt 41 is installed through the auxiliary bracket 4, and both ends of the fixing bolt 41 are placed in the adjusting groove 23 and are screwed and connected with fixing nuts, so that not only the auxiliary bracket 4 can be stably supported in the main bracket 2, but also the auxiliary bracket 4 can be stably installed in the main bracket 2 by using the fixing bolt 41.

[0024] A gearbox 3 is fixedly installed on the main bracket 2, one side of the gearbox 3 is transmission-connected with a pulley 31, the front end of the gearbox 3 is transmission-connected with a universal joint 32, the other end of the main bracket 2 is slidably connected with a sub-bracket 4, and an adjustment component 5 is transmission-installed between the sub-bracket 4 and the main bracket 2, wherein the adjustment component 5 is composed of a handwheel 51, a screw rod 52, a spring 53 and a sleeve 54, wherein one end of the sleeve 54 is fixedly installed at the center position of the inner wall of the main bracket 2, one end of the screw rod 52 is embedded in the other end of the sleeve 54, and a spring 53 is placed in the sleeve 54, and the other end of the spring 53 is fit-connected to the screw rod 52, the other end of the screw rod 52 passes through the sub-bracket 4 and is fixedly connected with the handwheel 51, and the screw rod 52 is threadedly engaged with the sub-bracket 4, so that the rotation of the handwheel 51 can drive the screw rod 52 to rotate, thereby adjusting the position of the sub-bracket 4 inside the main bracket 2.

[0025] A mounting frame 6 is fixedly installed on both the sub-bracket 4 and the main bracket 2, and is installed accordingly. A support assembly 7 is placed on the other end of the sub-bracket 4, wherein the support assembly 7 consists of a support foot 71, a nut 72 and a spring 53, wherein the top of the support foot 71 passes through the sub-bracket 4 and is screwed with the nut 72, and a spring 53 is sleeved between the bottom of the sub-bracket 4 and the support foot 71, so that the support assembly 7 can be used to stably support the bracket body and can be adjusted to a certain angle, and the other end of the crossbeam frame 1 is movably installed on the agricultural vehicle through a pin shaft, and a hydraulic pump 9 is movably installed on the crossbeam frame 1 and close to the main bracket 2 through a pin shaft, so that the hydraulic pump 9 can be better used for driving, thereby reducing the safety hazards of personnel operation.

[0026] A connecting plate 21 is provided on the main bracket 2 and at the top of the gearbox 3, and a tensioning mechanism 8 is movably connected to the connecting plate 21 through a pin shaft, wherein the tensioning mechanism 8 is composed of a first pull rod 81, a second pull rod 82, a fixed tube 83, a gear 84 and a ratchet crank 85, wherein one end of the first pull rod 81 and the second pull rod 82 is provided with a connecting head 86, the other end of the first pull rod 81 and the second pull rod 82 is provided with a rack 87, and the gear 84 is meshingly connected between the racks 87, and the gear 84 is fixedly installed inside the fixed tube 83 and is rotatably connected, and the ratchet crank 85 is installed on the outside of the fixed tube 83, and the ratchet crank 85 is connected to the gear 84 through a coupling transmission, so that the ratchet crank 85 can be used to drive the gear 84 to rotate, and further make the first pull rod 81 and the second pull rod 82 move relative to each other, so as to adjust the connection length of the first pull rod 81 and the second pull rod 82.

[0027] Working principle: When the utility model is used, one end of the crossbeam frame 1 is first stably connected to the agricultural locomotive through a pin shaft, and the other end of the crossbeam frame 1 is stably connected to the main bracket 2 through a pin shaft. At the same time, a hydraulic pump 9 is movably connected to the crossbeam frame 1 through a pin shaft, and the other end of the hydraulic pump 9 is also connected to the agricultural locomotive. A tensioning mechanism 8 is provided at the top of the main bracket 2, and the first pull rod 81 and the second pull rod 82 are respectively connected to the top of the agricultural locomotive and the main bracket 2 through a pin shaft. At this time, the position of the main bracket 2 is adjusted by the hydraulic pump 9, and the support leg 71 is further used to stably support the bracket as a whole. When it is necessary to install a straw machine, a pole beating machine, or a straw remover, the main bracket 2 can be adjusted by the hydraulic pump 9. When installing mechanical equipment such as a grass cutter, the hand wheel 51 is turned to drive the screw rod 52 to rotate, and the auxiliary bracket 4 is pushed by the spring 53 to leave the storage groove 22 inside the main bracket 2, and is further screwed and fixed by the fixing bolt 41. At this time, the mechanical equipment to be installed is placed on the mounting frame 6 and screwed and fixed by screws. At the same time, the gearbox 3 is connected to the agricultural locomotive by the universal joint 32, and a pulley 31 is provided on one side of the gearbox 3. In this way, the pulley 31 can be used to drive the mechanical equipment, so as to better drive the straw machine, pole beating machine, weeding machine and other devices to work, further enriching the diversity of the use of the device.

[0028] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rear cross beam of an agricultural machine frame, comprising a cross beam frame (1), characterized in that: One end of the crossbeam frame (1) is movably connected to a main bracket (2) via a pin shaft, a gearbox (3) is fixedly installed on the main bracket (2), one side of the gearbox (3) is drivingly connected to a pulley (31), and the front end of the gearbox (3) is drivingly connected to a universal joint (32), the other end of the main bracket (2) is slidably connected to a sub-bracket (4), an adjustment component (5) is drivingly installed between the sub-bracket (4) and the main bracket (2), and mounting frames (6) are fixedly installed on the sub-bracket (4) and the main bracket (2) and are installed in a corresponding manner, a support component (7) is placed on the other end of the sub-bracket (4), a connecting plate (21) is arranged on the main bracket (2) and located at the top of the gearbox (3), and a tensioning mechanism (8) is movably connected to the connecting plate (21) via a pin shaft.

2. The rear cross beam of the agricultural machine frame according to claim 1, characterized in that: The main bracket (2) and the auxiliary bracket (4) are both metal hollow tubes with a square structure, wherein one end of the auxiliary bracket (4) is embedded in a storage groove (22) inside the main bracket (2).

3. The rear cross beam of the agricultural machine frame according to claim 2, characterized in that: Adjustment grooves (23) are provided on both sides of the outer wall of the main bracket (2), and a fixing bolt (41) is installed through the auxiliary bracket (4). Both ends of the fixing bolt (41) are placed in the adjustment groove (23) and are screwed and connected with a fixing nut.

4. The rear cross beam of the agricultural machine frame according to claim 3, characterized in that: The adjustment assembly (5) is composed of a hand wheel (51), a screw rod (52), a spring (53) and a sleeve (54), wherein one end of the sleeve (54) is fixedly mounted at the center of the inner wall of the main bracket (2), and one end of the screw rod (52) is embedded in the other end of the sleeve (54).

5. The rear cross beam of the agricultural machine frame according to claim 4, characterized in that: A spring (53) is placed inside the sleeve (54), and the other end of the spring (53) is closely connected to the screw rod (52). The other end of the screw rod (52) passes through the auxiliary bracket (4) and is fixedly connected to a hand wheel (51), and the screw rod (52) is threadedly engaged with the auxiliary bracket (4).

6. The rear cross beam of the agricultural machine frame according to claim 5, characterized in that: The tensioning mechanism (8) is composed of a first pull rod (81), a second pull rod (82), a fixing tube (83), a gear (84) and a ratchet crank (85), wherein one end of the first pull rod (81) and the second pull rod (82) is provided with a connecting head (86), the other end of the first pull rod (81) and the second pull rod (82) is provided with a rack (87), and the racks (87) are meshingly connected with a gear (84).

7. The rear cross beam of the agricultural machine frame according to claim 6, characterized in that: The gear (84) is fixedly mounted inside the fixed tube (83) and is rotationally connected. The ratchet crank (85) is arranged and mounted outside the fixed tube (83), and the ratchet crank (85) is connected to the gear (84) through a shaft coupling.

8. The rear cross beam of the agricultural machine frame according to claim 7, characterized in that: The other end of the cross beam frame (1) is movably mounted on the agricultural vehicle via a pin shaft, and a hydraulic pump (9) is movably mounted on the cross beam frame (1) at a position close to the main bracket (2) via a pin shaft.

9. The rear cross beam of the agricultural machine frame according to claim 8, characterized in that: The support assembly (7) comprises a support foot (71), a nut (72) and a spring (53), wherein the top end of the support foot (71) passes through the auxiliary bracket (4) and is screwed with the nut (72), and the spring (53) is sleeved between the bottom of the auxiliary bracket (4) and the support foot (71).

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