Folding system of folding straw returning machine

Abstract

The utility model discloses a folding system of a folding straw returning machine, which comprises a suspension frame, folding oil cylinders are hinged to two sides of the upper portion of the suspension frame through inner pin shafts, and a left big arm and a right big arm are hinged to two sides of the lower portion of the suspension frame through folding pin shafts respectively. The end of a piston rod of the folding oil cylinder is hinged to the left large arm and the right large arm through outer pin shafts, the left large arm and the right large arm are consistent in structure and provided with safety pins, a rear gearbox is arranged in the suspension frame, and a safety system is hinged to the top of the suspension frame and comprises a pair of safety oil cylinders. A safety hook is arranged on a piston rod of the safety oil cylinder and used for hooking safety pins on the left large arm and the right large arm, a safety warning system is arranged at the tail of the suspension frame, and an unloading support assembly is arranged at the bottom of the suspension frame. The safety system is arranged, the folded state is fixed, and it is guaranteed that the machine is safely and reliably transported on a road; the unloading support assembly is adopted, and installation and unloading are easy and convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery, in particular to a folding system of a foldable straw returner. Background Art

[0002] The existing foldable straw returner has no safety warning sign at the rear when being folded for highway transportation, which makes it extremely unsafe to travel on the road. In addition, no mechanical or hydraulic locking system is provided, and the folding function is easily lost during transportation on uneven field roads, causing safety accidents. In addition, there is no support for parking the machine, and installation or unloading requires the support of an auxiliary vehicle, which is particularly inconvenient.

[0003] For this reason, we have improved the folding system of the folding straw returner to the field, and formed a folding system solution for the folding straw returner to the field. Utility Model Content

[0004] The utility model aims to provide a folding system for a foldable straw returner to the field in view of the defects and shortcomings of the prior art.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a folding system of a foldable straw returner, including a suspension frame, and its innovation lies in: folding cylinders are hingedly arranged on both sides of the upper part of the suspension frame through inner pin shafts, and left and right arms are hingedly arranged on both sides of the lower part of the suspension frame through folding pin shafts respectively, and the piston rod ends of the folding cylinders are hingedly connected to the left and right arms respectively through outer pin shafts, and the left and right arms have the same structure, and safety pins are arranged on the left and right arms, and a rear gear box is arranged inside the suspension frame, and a safety system is hingedly arranged on the top of the suspension frame, and the safety system includes a pair of safety cylinders, and safety hooks are arranged on the piston rods of the safety cylinders, and the safety hooks are used to hook the safety pins on the left and right arms, a safety warning system is arranged at the tail of the suspension frame, and a car unloading bracket assembly is arranged at the bottom of the suspension frame.

[0006] Furthermore, the safety warning system includes a mounting bracket, and reflectors are arranged on the left and right sides of the mounting bracket, and brake lights and light strips are arranged on the reflectors.

[0007] Furthermore, the unloading bracket assembly includes a bracket seat, an unloading bracket is longitudinally arranged inside the bracket seat, a plurality of positioning holes are provided on the unloading bracket, a pin hole is provided on the bracket seat, the pin hole corresponds to the positioning hole and is fixed by a pin, and a spring pin is provided at one end of the pin.

[0008] After adopting the above structure, the utility model has the following beneficial effects:

[0009] (1) The utility model can be matched with various types of foldable straw return machines, and the installation is simple and convenient;

[0010] (2) The utility model is equipped with a safety warning system to ensure the safety of road transportation of machinery;

[0011] (3) The utility model is provided with a safety system to fix the folded state, thus ensuring the safety and reliability of the machine in road transportation;

[0012] (4) The utility model is provided with a vehicle unloading bracket assembly, which makes installation and unloading simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is the front view of the utility model;

[0014] Figure 2 It is a top view of the utility model;

[0015] Figure 3 It is a side view of the utility model;

[0016] Figure 4 This is a diagram of the utility model after folding;

[0017] Figure 5 This is a diagram of the unloading state of the utility model.

[0018] Description of reference numerals:

[0019] 1 suspension frame, 2 folding cylinder, 3 folding pin, 4 left arm, 5 right arm, 6 safety pin, 7 rear gear box, 8 safety system, 81 safety cylinder, 82 safety hook, 9 safety warning system, 91 mounting bracket, 92 reflector, 93 brake light, 94 light strip, 10 unloading bracket assembly, 101 bracket seat, 102 unloading bracket, 103 latch. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with the accompanying drawings.

[0021] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be understood that the specific implementation methods described here are only used to explain the utility model and are not used to limit the utility model.

[0022] See also Figure 1-5A folding system of a foldable straw returner comprises a suspension frame 1, folding cylinders 2 are hingedly arranged on both sides of the upper part of the suspension frame 1 through inner pin shafts, and left and right arms 4 and 5 are hingedly arranged on both sides of the lower part of the suspension frame 1 through folding pin shafts 3, respectively. The piston rod ends of the folding cylinders 2 are hingedly arranged with the left and right arms 4 and 5 through outer pin shafts, respectively. The left and right arms 4 and 5 have the same structure, and safety pins 6 are arranged on the left and right arms 4 and 5. A rear gear box 7 is arranged inside the suspension frame 1, and a safety system 8 is hingedly arranged on the top of the suspension frame 1. The safety system 8 comprises a pair of safety cylinders 81, and a safety hook 82 is arranged on the piston rod of the safety cylinder 81. The safety hook 82 is used to hook the safety pins 6 on the left and right arms 4 and 5. A safety warning system 9 is arranged at the tail of the suspension frame 1, and a car unloading bracket assembly 10 is arranged at the bottom of the suspension frame 1.

[0023] Specifically, when the folding system is unfolded (working) (see Figure 1 ), operate the manual valve of the tractor's hydraulic output, oil enters the oil port of the safety cylinder 81 (single-acting cylinder), the piston rod retracts, the safety hook 82 moves up and disengages from the safety pin 6 on the folding arm, and the folding arm is in a free state; the folding cylinder 2 rodless chamber oil enters the piston rod and extends, and at the same time the folding cylinder rotates around the inner pin shaft on the suspension frame, the folding arm drives the hood to unfold, and the outer pin shaft pushes the folding arm to rotate outward around the folding pin shaft on the suspension frame, and the piston rod reaches the unfolding (working) position when it is fully extended; the manual valve of the tractor's hydraulic output returns to the middle position, oil returns to the oil inlet of the safety cylinder, the safety cylinder 81 resets the safety hook 82, and the folding cylinder is in a pressure-maintaining state.

[0024] Folding system When folded (for transport) (see Figure 4 ), operate the manual valve of the tractor's hydraulic output, oil enters the oil port of the safety cylinder 81 (single-acting cylinder), the piston rod retracts, and the safety hook rises; the folding cylinder 2 has oil entering the rod chamber and the piston rod retracts, and at the same time, the folding cylinder 2 rotates around the inner pin shaft on the suspension frame, and the outer pin shaft pulls the folding arm to rotate inward around the folding pin shaft on the suspension frame, and the folding arm drives the hood to fold. After folding into place, the manual valve of the tractor's hydraulic output returns to the middle position, and oil returns to the oil inlet of the safety cylinder. Under the action of the spring, the safety cylinder resets the safety hook, and the safety hook hooks the safety pin on the folding arm to achieve the safety effect. At this time, the folding cylinder is in a pressure-maintaining state.

[0025] In this embodiment, the safety warning system 9 includes a mounting bracket 91, and reflectors 92 are arranged on the left and right sides of the mounting bracket 91. Brake lights 93 and light strips 94 are arranged on the reflectors 92. The two reflectors 92 are used to reflect light, and the brake lights 93 and light strips 94 are connected to the brake lights of the tractor, so that the safety of the machine in road transportation can be ensured.

[0026] In this embodiment, the unloading bracket assembly 10 includes a bracket seat 101, an unloading bracket 102 is longitudinally arranged inside the bracket seat 101, a plurality of positioning holes are provided on the unloading bracket 102, a latch hole is provided on the bracket seat, and the latch hole corresponds to the positioning hole and is fixed by a latch 103, and a spring pin is provided at one end of the latch 103. After the work and transportation are completed, the unloading bracket assembly 10 (see Figure 5 ), lift the folded implement by the hydraulic system of the tractor, pull out the unloading bracket 102 (four), spring pins (four), and latches 103 (four). Several positioning holes are set on the upper part of the unloading bracket 102. Select the height to be supported (such as the uppermost positioning hole), align the positioning holes of the unloading bracket 102 with the latch holes in the middle of the bracket seat, and then insert the latch 103, insert the spring pin, and remember to check that the bottom surfaces of the four unloading brackets are on the same plane after installation; after completing the above steps, drop the four unloading brackets on a hard ground that does not sink, and release the connection between the tractor and the implement after they are stable; the spring pin prevents the latch from falling off.

[0027] The above description is only used to illustrate the technical solution of the utility model rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the utility model by ordinary technicians in this field should be included in the scope of the claims of the utility model as long as they do not depart from the spirit and scope of the technical solution of the utility model.

Claims

1. A folding system of a foldable straw returner, comprising a suspension frame, characterized in that: Folding cylinders are hingedly arranged on both sides of the upper part of the suspension frame through inner pin shafts, and left and right booms are hingedly arranged on both sides of the lower part of the suspension frame through folding pin shafts respectively. The piston rod ends of the folding cylinders are hingedly arranged with the left and right booms respectively through outer pin shafts. The left boom and the right boom have the same structure. Safety pins are arranged on the left and right booms. A rear gear box is arranged inside the suspension frame. A safety system is hingedly arranged on the top of the suspension frame. The safety system includes a pair of safety cylinders. Safety hooks are arranged on the piston rods of the safety cylinders. The safety hooks are used to hook the safety pins on the left and right booms. A safety warning system is arranged at the tail of the suspension frame, and a car unloading bracket assembly is arranged at the bottom of the suspension frame.

2. The folding system of the foldable straw returner according to claim 1, characterized in that: The safety warning system comprises a mounting bracket, and reflectors are arranged on the left and right sides of the mounting bracket, and brake lights and light strips are arranged on the reflectors.

3. The folding system of the foldable straw returner according to claim 1, characterized in that: The unloading bracket assembly includes a bracket seat, an unloading bracket is longitudinally arranged inside the bracket seat, a plurality of positioning holes are provided on the unloading bracket, a latch hole is provided on the bracket seat, the latch hole corresponds to the positioning hole and is fixed by a latch, and a spring pin is provided at one end of the latch.

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