Rear axle driving assembly of tractor

Abstract

The invention discloses a tractor rear axle driving assembly, and belongs to the technical field of agricultural machinery, the tractor rear axle driving assembly comprises a rear axle mechanism, a driven wheel assembly, a driving gear, a clutch mechanism, a rope winding mechanism, a bearing mechanism and a coupler, the rear side of the rear axle mechanism is provided with an output shaft, and the output shaft is fixedly connected with the driving gear; driven wheel assemblies are rotationally connected to the two sides of the driving gear, a clutch mechanism is arranged below the driven wheel assemblies, a rope winding mechanism is arranged on the rear side of the clutch mechanism, a coupler is clamped to the rear end of the output shaft, and a bearing mechanism is arranged on the coupler. The bearing mechanism can be dragged through the rope winding mechanism, the bearing mechanism lifts the coupler, peasants can conveniently connect the coupler with a rear axle of the bracket mechanism and an agricultural implement, the rope winding mechanism can pull the agricultural implement to a rear axle of a tractor through a cable, and connection of the agricultural implement and the rear axle of the tractor can be completed without reversing of the tractor; the connection efficiency is high, and operation can be completed by one person.

Description

Technical Field

[0001] The invention belongs to the technical field of agricultural machinery, and in particular relates to a rear axle drive assembly of a tractor. Background Art

[0002] Tractor rear axle assembly is similar to other vehicle rear axle assembly. It is a key component of the tractor transmission system. It is responsible for transmitting the power of the engine to the drive wheels. The rear axle of the tractor may also be combined with the suspension system to absorb road impact, keep the tractor stable, and improve driving comfort. The design and performance of the tractor rear axle directly affect the working efficiency and reliability of the tractor. Modern tractor rear axles may also include electronic control systems, such as differential locks, electronically controlled hydraulic systems, etc., to enhance its adaptability and controllability.

[0003] The biggest difference between the rear axle assembly of a tractor and that of other vehicles is that the rear axle assembly of a tractor often needs to bear the heavy responsibility of connecting with a variety of agricultural machinery, such as rotary tillers, seed drills, etc. Traditional tractor rear axles mostly use a three-point connection method to connect with a variety of agricultural machinery, which meets the needs of farmers who need a variety of different agricultural machinery for farming. However, when connecting with the traditional three-point connection method, the tractor needs to reverse to a suitable position for the agricultural machinery, then connect the agricultural machinery to the three-point connection on the tractor rear axle, then connect one end of the coupling to the output shaft on the tractor rear axle, and then connect the other end of the coupling to the agricultural machinery, finally completing the connection between the tractor and the agricultural machinery. The traditional connection method has low connection efficiency and it is difficult for one person to complete the connection operation. It is very difficult to reverse the tractor to a suitable position with the agricultural machinery. If the tractor is far away from the agricultural machinery, it cannot be connected. If the tractor is too close to the agricultural machinery, not only can it not be connected, but it may also collide with the agricultural machinery during the reversing process, damaging the connecting parts or agricultural machinery on the tractor rear axle. Secondly, the coupling is also very heavy. The coupling needs to be lifted when installing the coupling. Generally, one person cannot complete the work of connecting one end of the coupling to the output shaft on the tractor rear axle and the other end to the agricultural machinery. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the disadvantages of the above-mentioned prior art and provide a tractor rear axle drive assembly. The present invention can utilize a rope winding mechanism to drag a supporting mechanism, and the supporting mechanism lifts a coupling, so that farmers can connect the coupling with the rear axle of the bracket mechanism and agricultural machinery conveniently, and the cable on the rope winding mechanism is connected with the agricultural machinery, and the rope winding mechanism can drag the agricultural machinery, and the agricultural machinery can be dragged to a suitable position with the rear axle of the tractor without reversing the tractor, so the connection is convenient. The present invention not only has high connection efficiency but also can be operated by one person.

[0005] The technical solution adopted to solve the above technical problems is: a tractor rear axle drive assembly, including a rear axle mechanism, a driven wheel assembly, a driving gear, a clutch mechanism, a rope winding mechanism, a supporting mechanism and a coupling, wherein an output shaft is arranged at the rear side of the rear axle mechanism, a driving gear is fixedly connected to the output shaft, a driven wheel assembly is rotatably connected to both sides of the driving gear, a clutch mechanism is arranged below the driven wheel assembly, a rope winding mechanism is arranged at the rear side of the clutch mechanism, a coupling is clamped at the rear end of the output shaft, and a supporting mechanism is arranged on the coupling; The driving gear can drive the driven wheel assembly to rotate, the driven wheel assembly can drive the clutch mechanism, and the clutch mechanism can drive the rope winding mechanism; The rope winding mechanism can drag the supporting mechanism.

[0006] Through the above technical scheme, the tractor is started in neutral gear, and the rotation of the output shaft on the tractor rear axle mechanism can drive the driving gear to rotate, and the rotation of the driving gear can drive the driven wheel assembly to rotate, and the rotation of the driven wheel assembly can drive the clutch mechanism, and the clutch mechanism can drive the rope winding mechanism, and the rotation of the rope winding mechanism can drag the supporting mechanism, and the supporting mechanism can pull up the coupling, so that farmers can connect one end of the coupling with the output shaft on the tractor rear axle and the other end with agricultural machinery. At the same time, the cable on the rope winding mechanism can be connected to the agricultural machinery, and the agricultural machinery is pulled toward the tractor rear axle, so that the agricultural machinery can be dragged to a suitable position with the tractor rear axle without reversing the tractor, which is convenient for connection, effectively improves the work efficiency of connecting agricultural machinery with the tractor, reduces the difficulty of operation, and can be completed by one person, thereby improving agricultural production efficiency.

[0007] Furthermore, the driven wheel assembly includes a left driven gear and a right driven gear, the left driven gear is meshed with the left side of the driving gear, and the right driven gear is meshed with the right side of the driving gear.

[0008] Through the above technical solution, since the driven wheel assembly includes a left driven gear and a right driven gear, the left driven gear is meshed with the left side of the driving gear, and the right driven gear is meshed with the right side of the driving gear, so that when the driving gear rotates, it can drive the left driven gear and the right driven gear to rotate at the same time, and the rotation directions of the left driven gear and the right driven gear are opposite.

[0009] Furthermore, the clutch mechanism is divided into two groups, and one group of clutch mechanisms is arranged below the left driven gear and the right driven gear. The clutch mechanism includes a clutch frame, a rotating roller and a locking component. One end of the clutch frame is hinged to the rear axle mechanism, the rotating roller is rotatably connected in the clutch frame, and the locking component is hinged below the other end of the clutch frame.

[0010] Through the above technical solution, since there are two groups of clutch mechanisms, a group of clutch mechanisms are arranged under the left driven gear and the right driven gear, so that the left driven gear and the right driven gear can drive a group of clutch mechanisms respectively.

[0011] Furthermore, a worm is provided at one end of the rotating roller, and a first bevel gear is fixedly connected to the other end of the rotating roller, and the worm is meshed with the left driven gear or the right driven gear.

[0012] Through the above technical solution, since a worm is provided at one end of the rotating roller and the other end of the rotating roller is fixedly connected to the first bevel gear, the worm is meshed with the left driven gear or the right driven gear, so that the left driven gear can drive the rotating roller on one group of clutch mechanisms to rotate, and the right driven gear can drive the rotating roller on the other group of clutch mechanisms to rotate, and the rotating rollers on the two groups of clutch mechanisms rotate in opposite directions, that is, the first bevel gears on the two groups of clutch mechanisms rotate in opposite directions.

[0013] Furthermore, the locking component includes a locking box and a locking rod, the locking rod is slidably connected in the locking box, the locking box is fixedly connected to the rear axle mechanism, the top of the locking rod is hinged to the bottom of the other end of the clutch frame, a handle is provided on one side of the locking rod, and a locking groove is provided on the upper part of the locking box, and the handle can be clamped in the locking groove.

[0014] The locking lever is slidably connected in the locking box, the locking box is fixedly connected to the rear axle mechanism, the top of the locking lever is hinged to the bottom of the other end of the clutch frame, a handle is provided on one side of the locking lever, and a locking groove is provided on the upper part of the locking box. The handle can be stuck in the locking groove, so that the locking lever can slide vertically in the locking box to drive the clutch frame to move up and down away from the hinged end of the clutch frame and the rear axle mechanism. When the clutch frame moves away from the hinged end of the clutch frame and the rear axle mechanism, the worm can move with the left clutch. The left driven gear or the right driven gear is meshed with the worm, and when the clutch frame moves away from the hinged end of the clutch frame and the rear axle mechanism and descends, the worm can be disengaged from the left driven gear or the right driven gear, so that when the locking rod is vertically raised in the locking box, the left driven gear or the right driven gear is meshed with the worm. At this time, the handle on the locking rod is stuck in the locking groove, and the left driven gear or the right driven gear can remain meshed with the worm, and when the locking rod is vertically descended in the locking box, the left driven gear or the right driven gear is disengaged from the worm.

[0015] Furthermore, the rope winding mechanism includes a rope winding roller, a left rope winding box, a right rope winding box, a connecting gear component and a cable, the left rope winding box and the right rope winding box are both fixedly connected to the rear axle mechanism, the left rope winding box and the right rope winding box are correspondingly arranged at the rear side of the clutch frame of the two sets of clutch mechanisms, the front side of one end of the clutch frame is hinged to the rear axle mechanism, the rear side of one end of the clutch frame is hinged to the left rope winding box or the right rope winding box, the rope winding roller passes through the left rope winding box and the right rope winding box, the rope winding roller and the left rope winding box are connected The box and the right rope winding box are rotatably connected, the connecting gear parts are two groups, the connecting gear parts pass through the clutch frame, the connecting gear parts pass through the left rope winding box or the right rope winding box, the connecting gear parts are rotatably connected to the clutch frame, the connecting gear parts are rotatably connected to the left rope winding box or the right rope winding box, there are two cables, one end of the cable is wound around the rope winding roller, and the other end of the cable is fixedly connected with a hook, and a cable is arranged in each of the left and right rope winding boxes.

[0016] Through the above technical solution, since there are two cables, one end of the cable is wound around the rope winding roller, and the other end of the cable is fixedly connected to a hook, a cable is arranged in the left rope winding box and the right rope winding box, so that the rope winding roller can rotate to reel in or loosen the cable.

[0017] Furthermore, a second bevel gear is fixedly connected to the front side of the connecting gear component, a third bevel gear is fixedly connected to the rear side of the connecting gear component, fourth bevel gears are fixedly connected to both ends of the rope winding roller, the second bevel gear is arranged in the clutch frame, the third bevel gear is arranged in the left rope winding box or the right rope winding box, the second bevel gear is meshed with the first bevel gear, and the third bevel gear is meshed with the fourth bevel gear.

[0018] Through the above technical scheme, since the front side of the connecting gear component is fixedly connected to the second bevel gear, the rear side of the connecting gear component is fixedly connected to the third bevel gear, both ends of the rope winding roller are fixedly connected to the fourth bevel gear, the second bevel gear is arranged in the clutch frame, and the third bevel gear is arranged in the left rope winding box or the right rope winding box, the second bevel gear is meshed with the first bevel gear, and the third bevel gear is meshed with the fourth bevel gear, so that the rotation of the first bevel gear on the clutch mechanism can drive the second bevel gear on the connecting gear component to rotate, and the rotation of the second bevel gear can drive the third bevel gear to rotate, and the rotation of the third bevel gear can drive the fourth bevel gear on the rope winding roller to rotate, that is, drive the rope winding roller to rotate; The two first bevel gears rotate in opposite directions. The rotation of the left driven gear can drive the worm on the clutch mechanism meshing with it to rotate forward, that is, drive the first bevel gear on the rotating roller to rotate forward, and then drive the connecting gear component on the left rope winding box to rotate forward, and finally drive the rope winding roller to rotate forward. The forward rotation of the rope winding roller can drive the cable to be wound; The rotation of the right driven gear can drive the worm on the clutch mechanism meshing with it to reverse, that is, drive the first bevel gear on the rotating roller to reverse, and then drive the connecting gear component on the right rope box to reverse, and finally drive the rope winding roller to reverse. The reversal of the rope winding roller can drive the cable to relax.

[0019] Furthermore, the supporting mechanism includes a supporting frame, an upper supporting plate, a lower supporting plate and an adjusting bolt, the upper supporting plate is slidably connected above the supporting frame, the lower supporting plate is slidably connected below the supporting frame, the adjusting bolt passes through the upper supporting plate and the lower supporting plate, the coupling is clamped between the upper supporting plate and the lower supporting plate, the adjusting bolt can adjust the distance between the upper supporting plate and the lower supporting plate, the cable passes through both sides of the supporting frame, and the cable is fixedly connected to the supporting frame.

[0020] Through the above technical scheme, since the upper supporting plate is slidably connected above the supporting frame, and the lower supporting plate is slidably connected below the supporting frame, the adjusting bolt passes through the upper supporting plate and the lower supporting plate, and the coupling is clamped between the upper supporting plate and the lower supporting plate, the adjusting bolt can adjust the distance between the upper supporting plate and the lower supporting plate, and the cable passes through both sides of the supporting frame, and the cable is fixedly connected to the supporting frame, so that the supporting mechanism can fix the coupling, and the cable can pull the supporting frame, that is, the cable can pull the supporting mechanism, so that the supporting frame can be lifted when the cable is wound, that is, the coupling can be lifted, which is convenient for farmers to install the coupling.

[0021] Furthermore, lower connecting rods are symmetrically hinged on both sides of the lower rear side of the rear axle mechanism, an upper connecting rod is hinged on the upper rear side of the rear axle mechanism, an adjusting rod is rotatably connected to the top of the rear axle mechanism, and an input assembly is arranged on the front side of the rear axle mechanism.

[0022] Through the above technical scheme, since lower connecting rods are symmetrically hinged on both sides of the lower rear side of the rear axle mechanism, an upper connecting rod is hinged on the upper rear side of the rear axle mechanism, an adjusting rod is rotatably connected to the top of the rear axle mechanism, and an input assembly is arranged on the front side of the rear axle mechanism, the agricultural machinery can be connected to the rear axle mechanism at three points through two lower connecting rods and one upper connecting rod, and the input assembly can be connected to the engine through the transmission shaft to realize power input to the rear axle mechanism.

[0023] Furthermore, a hydraulic telescopic rod is hinged on the side of the lower connecting rod, the other end of the hydraulic telescopic rod is hinged on the rear axle mechanism, hydraulic lifting rods are symmetrically hinged on both sides of the adjusting rod, the bottom of the hydraulic lifting rod is fixedly connected to the rear axle mechanism, lifting rods are hinged at both ends of the adjusting rod, and the bottom of the lifting rod is hinged to the top of the lower connecting rod.

[0024] Through the above technical scheme, since a hydraulic telescopic rod is hinged on the side of the lower connecting rod, the other end of the hydraulic telescopic rod is hinged on the rear axle mechanism, hydraulic lifting rods are symmetrically hinged on both sides of the adjusting rod, the bottom of the hydraulic lifting rod is fixedly connected to the rear axle mechanism, and lifting rods are hinged at both ends of the adjusting rod. The bottom of the lifting rod is hinged to the top of the lower connecting rod, so that the extension and retraction of the hydraulic telescopic rod can push the lower connecting rod to swing horizontally, that is, the hydraulic telescopic rod can adjust the horizontal position of the lower connecting rod, and the lifting and lowering of the hydraulic lifting rod can drive the adjusting rod to rotate, and the rotation of the adjusting rod can drive the lifting and lowering of the lifting rod, that is, the lifting and lowering of the hydraulic lifting rod can adjust the vertical position of the lower connecting rod.

[0025] The beneficial effects of the present invention are as follows: (1) In the present invention, the cable winding can pull the agricultural implement toward the rear axle mechanism. When the agricultural implement reaches the appropriate position, the locking rod in the locking box on the clutch mechanism below the left driven gear is lowered, and the left driven gear is disengaged from the worm gear in the clutch mechanism below. The cable stops winding, and the horizontal position of the lower connecting rod is adjusted by the hydraulic telescopic rod. The vertical position of the lower connecting rod is adjusted by the hydraulic lifting rod. After the position of the lower connecting rod is matched with the position of the corresponding connection point on the agricultural implement, the lower connecting rod can be connected to the agricultural implement. During the whole process, the farmer operates at the rear side of the rear axle mechanism, and there is no need to reverse the tractor to find a suitable position between the agricultural implement and the agricultural implement, which reduces the difficulty of operation and effectively improves the connection efficiency between the agricultural implement and the rear axle mechanism. (2) After the cable is relaxed to a suitable position in the present invention, the coupling can be conveniently placed in the supporting mechanism. The spacing between the upper supporting plate and the lower supporting plate can be adjusted by adjusting the bolts. The supporting mechanism fixes the coupling. Then, the cable can be wound up to pull the supporting frame. When the cable is wound up, the supporting frame can be lifted, that is, the coupling can be lifted. A farmer can connect one end of the coupling to the output shaft on the rear axle mechanism and the other end to the agricultural implement, thereby further improving the connection efficiency between the agricultural implement and the rear axle mechanism. (3) In the present invention, the upper connecting rod is finally connected to the corresponding connecting point on the agricultural machinery, that is, the three-point connection between the agricultural machinery and the rear axle mechanism is completed. During the whole process, the farmer operates alone at the rear side of the rear axle mechanism, and the operating difficulty is greatly reduced. The assistance of the cable saves farmers time and effort during operation, and is convenient for farmers to operate. The connection efficiency between the agricultural machinery and the rear axle mechanism is improved while reducing labor intensity. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the rear axle drive assembly of the tractor of the present invention; Figure 2 It is a structural schematic diagram of the driven wheel assembly, the driving gear and the clutch mechanism of the rear axle drive assembly of the tractor of the present invention when they cooperate; Figure 3 It is a structural schematic diagram of the clutch mechanism of the rear axle drive assembly of the tractor of the present invention; Figure 4 It is a schematic diagram of the exploded structure of the clutch mechanism of the rear axle drive assembly of the tractor of the present invention; Figure 5 It is a structural schematic diagram of the clutch mechanism and the rope winding mechanism of the rear axle drive assembly of the tractor of the present invention when they cooperate; Figure 6 The rear axle drive assembly of the tractor of the present invention Figure 5 A partial enlarged view of the middle A; Figure 7 The structure diagram of the rope winding mechanism of the rear axle drive assembly of the tractor of the present invention is Figure 8 It is a schematic diagram of the exploded structure of the rope winding mechanism of the rear axle drive assembly of the tractor of the present invention; Fig. 9 It is a structural schematic diagram of the supporting mechanism and the coupling of the rear axle drive assembly of the tractor of the present invention when they cooperate; Fig.10 It is a structural schematic diagram of the supporting mechanism of the rear axle drive assembly of the tractor of the present invention; Fig.11 It is a schematic diagram of the exploded structure of the supporting mechanism of the rear axle drive assembly of the tractor of the present invention; Fig.12 It is a structural schematic diagram of the rear axle mechanism of the tractor rear axle drive assembly from a first perspective; Fig.13 It is a second perspective structural schematic diagram of the rear axle mechanism of the tractor rear axle drive assembly of the present invention.

[0027] Figure numerals: 1, rear axle mechanism; 2, driven wheel assembly; 3, driving gear; 4, clutch mechanism; 5, rope winding mechanism; 6, supporting mechanism; 7, coupling; 11, output shaft; 12, lower connecting rod; 13, upper connecting rod; 14, adjusting rod; 15, input assembly; 121, hydraulic telescopic rod; 141, hydraulic lifting rod; 142, lifting rod; 21, left driven gear; 22, right driven gear; 41, clutch frame; 42, rotating roller; 43 , locking component; 421, worm; 422, first bevel gear; 431, locking box; 432, locking rod; 4311, locking groove; 51, rope winding roller; 52, left rope winding box; 53, right rope winding box; 54, connecting gear component; 55, cable; 511, fourth bevel gear; 541, second bevel gear; 542, third bevel gear; 551, hook; 61, supporting frame; 62, upper supporting plate; 63, lower supporting plate; 64, adjusting bolt. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0029] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0030] like Figure 1 As shown, the rear axle drive assembly of the tractor includes a rear axle mechanism 1, a driven wheel assembly 2, a driving gear 3, a clutch mechanism 4, a rope winding mechanism 5, a supporting mechanism 6 and a coupling 7. An output shaft 11 is arranged at the rear side of the rear axle mechanism 1, the driving gear 3 is fixedly connected to the output shaft 11, the driven wheel assembly 2 is rotatably connected to both sides of the driving gear 3, a clutch mechanism 4 is arranged below the driven wheel assembly 2, a rope winding mechanism 5 is arranged on the rear 4 sides of the clutch mechanism, a coupling 7 is clamped at the rear end of the output shaft 11, and a supporting mechanism 6 is arranged on the coupling 7; The driving gear 3 can drive the driven wheel assembly 2 to rotate, the driven wheel assembly 2 can drive the clutch mechanism 4, and the clutch mechanism 4 can drive the rope winding mechanism 5; The rope winding mechanism 5 can drag the supporting mechanism 6 .

[0031] In this embodiment, the tractor is started by shifting the tractor into neutral gear, and the output shaft 11 on the tractor rear axle mechanism 1 rotates to drive the driving gear 3 to rotate, and the driving gear 3 rotates to drive the driven wheel assembly 2 to rotate, and the driven wheel assembly 2 rotates to drive the clutch mechanism 4, and the clutch mechanism 4 can drive the rope winding mechanism 5, and the rope winding mechanism 5 rotates to drag the supporting mechanism 6, and the supporting mechanism 6 can pull up the coupling 7, so that farmers can connect one end of the coupling 7 to the output shaft 11 on the tractor rear axle and the other end to the agricultural machinery. At the same time, the cable 55 on the rope winding mechanism 5 can be connected to the agricultural machinery, and the agricultural machinery is pulled toward the tractor rear axle, so that the agricultural machinery can be dragged to a suitable position with the tractor rear axle without reversing the tractor, which is convenient for connection, effectively improving the working efficiency of connecting the agricultural machinery with the tractor, reducing the difficulty of operation, and can be completed by one person, thereby improving agricultural production efficiency.

[0032] like Figure 2 - Figure 4As shown, the driven wheel assembly 2 includes a left driven gear 21 and a right driven gear 22, the left driven gear 21 meshes with the left side of the driving gear 3, and the right driven gear 22 meshes with the right side of the driving gear 3; The clutch mechanism 4 is divided into two groups. One group of clutch mechanisms 4 is disposed under the left driven gear 21 and the right driven gear 22. The clutch mechanism 4 comprises a clutch frame 41, a rotating roller 42 and a locking component 43. One end of the clutch frame 41 is hinged on the rear axle mechanism 1, the rotating roller 42 is rotatably connected in the clutch frame 41, and the locking component 43 is hinged under the other end of the clutch frame 41. A worm 421 is disposed at one end of the rotating roller 42, and a first bevel gear 422 is fixedly connected to the other end of the rotating roller 42. The worm 421 is meshed with the left driven gear 21 or the right driven gear 22. The locking component 43 includes a locking box 431 and a locking rod 432. The locking rod 432 is slidably connected in the locking box 431. The locking box 431 is fixedly connected to the rear axle mechanism 1. The top of the locking rod 432 is hinged to the bottom of the other end of the clutch frame 41. A handle is provided on one side of the locking rod 432. A locking groove 4311 is provided on the upper part of the locking box 431. The handle can be clamped in the locking groove 4311.

[0033] In this embodiment, when the driving gear 3 rotates, it can simultaneously drive the left driven gear 21 and the right driven gear 22 to rotate, and the left driven gear 21 and the right driven gear 22 rotate in opposite directions; The left driven gear 21 can drive the rotating roller 42 on one set of the clutch mechanism 4 to rotate, and the right driven gear 22 can drive the rotating roller 42 on the other set of the clutch mechanism 4 to rotate, and the rotating rollers 42 on the two sets of the clutch mechanism 4 rotate in opposite directions, that is, the first bevel gears 422 on the two sets of the clutch mechanism 4 rotate in opposite directions; The locking rod 432 slides vertically in the locking box 431 to drive the clutch frame 41 to move up and down away from the hinged end of the clutch frame 41 and the rear axle mechanism 1. When the clutch frame 41 moves up away from the hinged end of the clutch frame 41 and the rear axle mechanism 1, the worm 421 can mesh with the left driven gear 21 or the right driven gear 22. When the clutch frame 41 moves down away from the hinged end of the clutch frame 41 and the rear axle mechanism 1, the worm 421 can mesh with the left driven gear 21 or the right driven gear 22. 22 is disengaged, so that when the locking rod 432 is vertically raised in the locking box 431, the left driven gear 21 or the right driven gear 22 is engaged with the worm 421. At this time, the handle on the locking rod 432 is stuck in the locking groove 4311, and the left driven gear 21 or the right driven gear 22 can remain engaged with the worm 421. When the locking rod 432 is vertically lowered in the locking box 431, the left driven gear 21 or the right driven gear 22 is disengaged from the worm 421.

[0034] like Figure 5 - Figure 8As shown, the rope winding mechanism 5 includes a rope winding roller 51, a left rope winding box 52, a right rope winding box 53, a connecting gear component 54 and a cable 55. The left rope winding box 52 and the right rope winding box 53 are both fixedly connected to the rear axle mechanism 1. The left rope winding box 52 and the right rope winding box 53 are correspondingly arranged at the rear side of the clutch frame 41 of the two sets of clutch mechanisms 4. The front side of one end of the clutch frame 41 is hinged to the rear axle mechanism 1, and the rear side of one end of the clutch frame 41 is hinged to the left rope winding box 52 or the right rope winding box 53. The rope winding roller 51 passes through the left rope winding box 52 and the right rope winding box 53. The rope winding roller 51 and the left rope winding box 52 and the right rope winding box 53 are connected. The box 52 and the right rope winding box 53 are rotatably connected, the connecting gear component 54 is two groups, the connecting gear component 54 passes through the clutch frame 41, the connecting gear component 54 passes through the left rope winding box 52 or the right rope winding box 53, the connecting gear component 54 is rotatably connected to the clutch frame 41, the connecting gear component 54 is rotatably connected to the left rope winding box 52 or the right rope winding box 53, there are two cables 55, one end of the cable 55 is wound around the rope winding roller 51, and the other end of the cable 55 is fixedly connected with a hook 551, and a cable 55 is provided in each of the left rope winding box 52 and the right rope winding box 53; A second bevel gear 541 is fixedly connected to the front side of the connecting gear component 54, a third bevel gear 542 is fixedly connected to the rear side of the connecting gear component 54, and fourth bevel gears 511 are fixedly connected to both ends of the rope winding roller 51. The second bevel gear 541 is arranged in the clutch frame 41, and the third bevel gear 542 is arranged in the left rope winding box 52 or the right rope winding box 53. The second bevel gear 541 is meshed with the first bevel gear 422, and the third bevel gear 542 is meshed with the fourth bevel gear 511.

[0035] In this embodiment, the rotation of the first bevel gear 422 on the clutch mechanism 4 can drive the second bevel gear 541 on the connecting gear component 54 to rotate, and the rotation of the second bevel gear 541 can drive the third bevel gear 542 to rotate, and the rotation of the third bevel gear 542 can drive the fourth bevel gear 511 on the rope winding roller 51 to rotate, that is, drive the rope winding roller 51 to rotate; The two first bevel gears 422 rotate in opposite directions. The rotation of the left driven gear 21 can drive the worm 421 on the clutch mechanism 4 meshing therewith to rotate forward, that is, drive the first bevel gear 422 on the rotating roller 42 to rotate forward, and then drive the connecting gear component 54 on the left rope winding box 52 to rotate forward, and finally drive the rope winding roller 51 to rotate forward. The forward rotation of the rope winding roller 51 can drive the cable 55 to be wound; The rotation of the right driven gear 22 can drive the worm 421 on the clutch mechanism 4 meshing therewith to reverse, that is, drive the first bevel gear 422 on the rotating roller 42 to reverse, and then drive the connecting gear component 54 on the right rope winding box 53 to reverse, and finally drive the rope winding roller 51 to reverse, and the reverse rotation of the rope winding roller 51 can drive the cable 55 to loosen; That is, when the right driven gear 22 is disengaged from the worm 421 and the left driven gear 21 is engaged with the worm 421, the rope winding roller 51 rotates forward to drive the cable 55 to be wound; when the left driven gear 21 is disengaged from the worm 421 and the right driven gear 22 is engaged with the worm 421, the rope winding roller 51 rotates reversely to drive the cable 55 to be loosened.

[0036] like Fig. 9 - Fig.11 As shown, the supporting mechanism 6 includes a supporting frame 61, an upper supporting plate 62, a lower supporting plate 63 and an adjusting bolt 64. The upper supporting plate 62 is slidably connected above the supporting frame 61, and the lower supporting plate 63 is slidably connected below the supporting frame 61. The adjusting bolt 64 passes through the upper supporting plate 62 and the lower supporting plate 63. The coupling 7 is clamped between the upper supporting plate 62 and the lower supporting plate 63. The adjusting bolt 64 can adjust the distance between the upper supporting plate 62 and the lower supporting plate 63. The cable 55 passes through both sides of the supporting frame 61, and the cable 55 is fixedly connected to the supporting frame 61.

[0037] In this embodiment, the supporting mechanism 6 can fix the coupling 7, and the adjusting bolt 64 can adjust the distance between the upper supporting plate 62 and the lower supporting plate 63, so that the supporting mechanism 6 can fix couplings 7 of different specifications, and the cable 55 can pull the supporting frame 61, that is, the cable 55 can pull the supporting mechanism 6, so that the supporting frame 61 can be lifted when the cable 55 is reeled up, that is, the coupling 7 can be lifted, which is convenient for farmers to install the coupling 7.

[0038] like Fig.12 - Fig.13 As shown, lower connecting rods 12 are symmetrically hinged on both sides of the lower rear side of the rear axle mechanism 1, an upper connecting rod 13 is hinged on the upper rear side of the rear axle mechanism 1, an adjusting rod 14 is rotatably connected to the top of the rear axle mechanism 1, and an input assembly 15 is provided on the front side of the rear axle mechanism 1; A hydraulic telescopic rod 121 is hinged on the side of the lower connecting rod 12, and the other end of the hydraulic telescopic rod 121 is hinged on the rear axle mechanism 1. Hydraulic lifting rods 141 are symmetrically hinged on both sides of the adjusting rod 14. The bottom of the hydraulic lifting rod 141 is fixedly connected to the rear axle mechanism 1, and lifting rods 142 are hinged at both ends of the adjusting rod 14. The bottom of the lifting rod 142 is hinged to the top of the lower connecting rod 12.

[0039] In this embodiment, the extension and retraction of the hydraulic telescopic rod 121 can push the lower connecting rod 12 to swing horizontally, that is, the hydraulic telescopic rod 121 can adjust the horizontal position of the lower connecting rod 12, and the lifting and lowering of the hydraulic lifting rod 141 can drive the adjusting rod 14 to rotate, and the rotation of the adjusting rod 14 can drive the lifting rod 142 to lift and lower, that is, the lifting and lowering of the hydraulic lifting rod 141 can adjust the vertical position of the lower connecting rod 12; The agricultural implement can achieve a three-point connection with the rear axle mechanism 1 through two lower connecting rods 12 and an upper connecting rod 13 , and the input assembly 15 can be connected to the engine through a transmission shaft to achieve power input to the rear axle mechanism 1 .

[0040] Working principle: When working, the tractor is parked in front of the agricultural implement, the tractor is put into neutral gear, and the output shaft 11 on the tractor rear axle mechanism 1 rotates to drive the driving gear 3 to rotate, and the driving gear 3 rotates to drive the driven wheel assembly 2 to rotate; The hook 551 on the cable 55 is connected to the agricultural implement. At this time, the locking rod 432 in the locking box 431 on the clutch mechanism 4 below the left driven gear 21 is lifted upward, and the handle on the locking rod 432 is clamped in the locking groove 4311. The left driven gear 21 is meshed with the worm 421 in the clutch mechanism 4 below. At the same time, the right driven gear 22 is kept disengaged from the worm 421 in the clutch mechanism 4 below it. The left driven gear 21 rotates to drive the worm 421 on the clutch mechanism 4 meshed with it to rotate forward, that is, to drive the first bevel gear 422 on the rotating roller 42 to rotate forward, and then drive the connecting gear component 54 on the left rope winding box 52 to rotate forward, and finally drive the rope winding roller 51 to rotate forward. The rope winding roller 51 rotates forward to reel in the cable 55. The cable 55 can be wound up to pull the agricultural implement toward the rear axle mechanism 1. When the agricultural implement reaches the appropriate position, the locking rod 432 in the locking box 431 on the clutch mechanism 4 below the left driven gear 21 is lowered, and the left driven gear 21 is disengaged from the worm 421 in the lower clutch mechanism 4. The cable 55 stops winding up, and the horizontal position of the lower connecting rod 12 is adjusted by the hydraulic telescopic rod 121. The vertical position of the lower connecting rod 12 is adjusted by lifting and lowering the hydraulic lifting rod 141. After matching the position of the lower connecting rod 12 with the position of the corresponding connection point on the agricultural implement, the lower connecting rod 12 can be connected to the agricultural implement. During the whole process, the farmer operates at the rear side of the rear axle mechanism 1, and there is no need to reverse the tractor to find a suitable position between the agricultural implement and the agricultural implement, which reduces the difficulty of operation and effectively improves the connection efficiency between the agricultural implement and the rear axle mechanism 1. The hook 551 on the cable 55 is disconnected from the agricultural implement. At this time, the locking rod 432 in the locking box 431 on the clutch mechanism 4 below the right driven gear 22 is lifted upward, and the handle on the locking rod 432 is clamped in the locking groove 4311. The right driven gear 22 is meshed with the worm 421 in the clutch mechanism 4 below. At the same time, the left driven gear 21 is kept disengaged from the worm 421 in the clutch mechanism 4 below it. The rotation of the right driven gear 22 can drive the worm 421 on the clutch mechanism 4 meshed with it to reverse, that is, drive the first bevel gear 422 on the rotating roller 42 to reverse, and then drive the connecting gear component 54 on the right rope box 53 to reverse, and finally drive the rope winding roller 51 to reverse. The reversal of the rope winding roller 51 can drive the cable 55 to relax. After the cable 55 is relaxed to a suitable position, the locking rod 432 in the locking box 431 on the clutch mechanism 4 below the right driven gear 22 is lowered, the right driven gear 22 is disengaged from the worm 421 in the clutch mechanism 4 below, and the cable 55 stops being relaxed. At this time, the coupling 7 can be conveniently placed in the supporting mechanism 6, and the distance between the upper supporting plate 62 and the lower supporting plate 63 is adjusted by adjusting the bolt 64, and the supporting mechanism 6 fixes the coupling 7; Then repeat the above-mentioned cable 55 winding step, the cable 55 can pull the supporting frame 61, and the supporting frame 61 can be lifted when the cable 55 is wound up, that is, the coupling 7 is lifted, and the farmer can connect one end of the coupling 7 to the output shaft 11 on the rear axle mechanism 1, and connect the other end to the agricultural implement, thereby further improving the connection efficiency between the agricultural implement and the rear axle mechanism 1; Finally, the upper connecting rod 13 is connected to the corresponding connecting point on the agricultural implement, that is, the three-point connection between the agricultural implement and the rear axle mechanism 1 is completed. During the whole process, the farmer operates alone at the rear side of the rear axle mechanism 1, and the operation difficulty is greatly reduced. The assistance of the cable 55 saves time and effort for the farmer to operate, and the farmer's operation is convenient, which improves the connection efficiency between the agricultural implement and the rear axle mechanism 1 and reduces the labor intensity; The rope winding mechanism 5 can not only assist farmers in connecting agricultural machinery with the rear axle mechanism 1, but also play a role in other operations such as tractor escape, thereby increasing the diversity of tractor functions, reducing the burden on farmers to purchase equipment, and increasing farmers' income.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention.

Claims

1. A tractor rear axle drive assembly, comprising a rear axle mechanism (1), a driven wheel assembly (2), a driving gear (3), a clutch mechanism (4), a rope winding mechanism (5), a supporting mechanism (6) and a coupling (7), characterized in that: An output shaft (11) is arranged at the rear side of the rear axle mechanism (1), a driving gear (3) is fixedly connected to the output shaft (11), driven wheel assemblies (2) are rotatably connected to both sides of the driving gear (3), a clutch mechanism (4) is arranged below the driven wheel assembly (2), a rope winding mechanism (5) is arranged at the rear side of the clutch mechanism (4), a coupling (7) is clamped at the rear end of the output shaft (11), and a supporting mechanism (6) is arranged on the coupling (7); The driving gear (3) can drive the driven wheel assembly (2) to rotate, the driven wheel assembly (2) can drive the clutch mechanism (4), and the clutch mechanism (4) can drive the rope winding mechanism (5); The rope winding mechanism (5) is capable of dragging the supporting mechanism (6).

2. The tractor rear axle drive assembly according to claim 1, characterized in that: The driven wheel assembly (2) comprises a left driven gear (21) and a right driven gear (22); the left driven gear (21) meshes with the left side of the driving gear (3), and the right driven gear (22) meshes with the right side of the driving gear (3).

3. The tractor rear axle drive assembly according to claim 2, characterized in that: The clutch mechanism (4) comprises two groups. One group of clutch mechanisms (4) is provided below the left driven gear (21) and the right driven gear (22). The clutch mechanism (4) comprises a clutch frame (41), a rotating roller (42) and a locking component (43). One end of the clutch frame (41) is hinged on the rear axle mechanism (1), the rotating roller (42) is rotatably connected in the clutch frame (41), and the locking component (43) is hinged below the other end of the clutch frame (41).

4. The tractor rear axle drive assembly according to claim 3, characterized in that: A worm (421) is provided at one end of the rotating roller (42), and a first bevel gear (422) is fixedly connected to the other end of the rotating roller (42), and the worm (421) is meshed with the left driven gear (21) or the right driven gear (22).

5. The tractor rear axle drive assembly according to claim 4, characterized in that: The locking component (43) comprises a locking box (431) and a locking rod (432); the locking rod (432) is slidably connected in the locking box (431); the locking box (431) is fixedly connected to the rear axle mechanism (1); the top of the locking rod (432) is hinged to the bottom of the other end of the clutch frame (41); a handle is provided on one side of the locking rod (432); a locking groove (4311) is provided on the upper part of the locking box (431); and the handle can be clamped in the locking groove (4311).

6. The tractor rear axle drive assembly according to claim 4, characterized in that: The rope winding mechanism (5) comprises a rope winding roller (51), a left rope winding box (52), a right rope winding box (53), a connecting gear component (54) and a cable (55); the left rope winding box (52) and the right rope winding box (53) are both fixedly connected to the rear axle mechanism (1); the left rope winding box (52) and the right rope winding box (53) are correspondingly arranged at the rear side of the clutch frame (41) of the two clutch mechanisms (4); the front side of one end of the clutch frame (41) is hinged to the rear axle mechanism (1); the rear side of one end of the clutch frame (41) is hinged to the left rope winding box (52) or the right rope winding box (53); the rope winding roller (51) passes through the left rope winding box (52) and the right rope winding box (53); the rope winding roller (51) and the left rope winding box (55) are connected to each other. 2) and the right rope winding box (53), the connecting gear component (54) is divided into two groups, the connecting gear component (54) passes through the clutch frame (41), the connecting gear component (54) passes through the left rope winding box (52) or the right rope winding box (53), the connecting gear component (54) is connected to the clutch frame (41), the connecting gear component (54) is connected to the left rope winding box (52) or the right rope winding box (53), the connecting gear component (54) is connected to the clutch frame (41), the connecting gear component (54) is connected to the left rope winding box (52) or the right rope winding box (53), the cables (55) are divided into two groups, one end of the cables (55) is wound around the rope winding roller (51), the other end of the cables (55) is fixedly connected to a hook (551), and one cable (55) is arranged in each of the left rope winding box (52) and the right rope winding box (53).

7. The tractor rear axle drive assembly according to claim 6, characterized in that: The front side of the connecting gear component (54) is fixedly connected to a second bevel gear (541), the rear side of the connecting gear component (54) is fixedly connected to a third bevel gear (542), both ends of the rope winding roller (51) are fixedly connected to fourth bevel gears (511), the second bevel gear (541) is arranged in a clutch frame (41), the third bevel gear (542) is arranged in a left rope winding box (52) or a right rope winding box (53), the second bevel gear (541) is meshed with the first bevel gear (422), and the third bevel gear (542) is meshed with the fourth bevel gear (511).

8. The tractor rear axle drive assembly according to claim 6, characterized in that: The supporting mechanism (6) comprises a supporting frame (61), an upper supporting plate (62), a lower supporting plate (63) and an adjusting bolt (64); the upper supporting plate (62) is slidably connected to the upper part of the supporting frame (61); the lower supporting plate (63) is slidably connected to the lower part of the supporting frame (61); the adjusting bolt (64) passes through the upper supporting plate (62) and the lower supporting plate (63); the coupling (7) is clamped between the upper supporting plate (62) and the lower supporting plate (63); the adjusting bolt (64) can adjust the distance between the upper supporting plate (62) and the lower supporting plate (63); the cable (55) passes through both sides of the supporting frame (61); and the cable (55) is fixedly connected to the supporting frame (61).

9. The tractor rear axle drive assembly according to claim 1, characterized in that: The rear axle mechanism (1) has lower connecting rods (12) symmetrically hinged on both sides below the rear side, an upper connecting rod (13) hinged on the upper rear side of the rear axle mechanism (1), an adjusting rod (14) is rotatably connected to the top of the rear axle mechanism (1), and an input assembly (15) is provided on the front side of the rear axle mechanism (1).

10. The tractor rear axle drive assembly according to claim 9, characterized in that: A hydraulic telescopic rod (121) is hinged on the side of the lower connecting rod (12), and the other end of the hydraulic telescopic rod (121) is hinged on the rear axle mechanism (1). Hydraulic lifting rods (141) are symmetrically hinged on both sides of the adjustment rod (14), and the bottom of the hydraulic lifting rod (141) is fixedly connected to the rear axle mechanism (1). Lifting rods (142) are hinged on both ends of the adjustment rod (14), and the bottom of the lifting rod (142) is hinged to the top of the lower connecting rod (12).

Images