Reinforced folding arm of straw returning machine
By designing the folding arm of the reinforced straw return machine, adopting a split structure and a gradient design, adding internal and external reinforcement plates, and setting up a contour fixed seat and a contour mechanism, the existing folding arm of the folding arm of the folding arm is solved, and a higher stiffness, strength and crushing effect is achieved.
Patent Information
- Application Number
- CN202420880393.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-25
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2034-04-25
AI Technical Summary
The folding arms of the existing folding straw return machine are easy to bend and deform, and the cantilever-type safety pin is also easy to bend and fail, and the whole machine has no contouring function with the ground, resulting in uneven straw crushing on uneven plots of high and low stubble, and poor operating results.
A reinforced straw return machine folding arm is designed, adopting a split structure and gradient design, increasing internal and external reinforcement plates to improve stiffness and strength; setting up a pronunciation fixing seat and pronunciation mechanism to ensure the consistent height of the crushing and stubble; the insurance pin is fixed with double support ears to avoid deformation.
The stiffness and strength of the folding arm are improved, bending deformation is avoided, the consistency of the height of the crushing and stubble is ensured, the working effect is improved, and the supporting needs of various models of folding arm type return machines are met.
Smart Images
Figure CN222655780U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of agricultural machinery, in particular to a reinforced folding arm of a straw return machine. Background Art
[0002] The folding arms of existing foldable straw returners are mostly made of square tubes. The folding arms are easy to bend and deform during operation, and the cantilevered safety pins arranged thereon are also very easy to bend and fail. Moreover, the folding arms and the returner are rigidly connected, and the whole machine has no contour-matching function with the ground. Therefore, the stubble left after the straw is crushed and returned to the field on uneven plots is uneven, the operating effect is poor, and users have particularly strong complaints.
[0003] Based on the defects of the above-mentioned folding straw returner, we optimized the structure of the folding arm of the folding straw returner to form a technical solution for the folding arm of a reinforced straw returner. Utility Model Content
[0004] The utility model aims to provide a reinforced folding arm of a straw return machine 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 reinforced straw return machine folding arm, the innovation point of which is that the folding arm is a split structure, including a folding arm connecting head and a folding arm rotating head; the folding arm connecting head includes an integrally formed front side plate and a rear curved side plate, the interior of the front side plate is respectively provided with an inner reinforcing curved plate and an inner reinforcing plate, the interior of the rear curved side plate is provided with an outer reinforcing plate and a reinforced inner curved plate, the front end of the front side plate is provided with a connecting plate, the connecting plate is fixedly connected to the folding arm rotating head by bolts, a rotating shaft sleeve 1 is provided at the rear end of the rear curved side plate, a sliding bearing 1 is provided inside the rotating shaft sleeve 1, a long pin is provided inside the sliding bearing 1, a profiling fixing seat is provided on the side of the front side plate, and a profiling mechanism is provided on the profiling fixing seat; the folding arm rotating head includes a fixing plate fixedly connected to the connecting plate, a rotating shaft sleeve 2 is provided on the fixing plate, a sliding bearing 2 is provided inside the rotating shaft sleeve 2, and a short pin is provided inside the sliding bearing 2.
[0006] Furthermore, double supporting ears and connecting ears are respectively arranged on the left and right sides of the top of the front side plate, a safety pin is arranged in the double supporting ears, a waist-shaped hole is opened inside the connecting ear, and a cylinder pin shaft is arranged inside the waist-shaped hole through a retaining ring and a cotter pin.
[0007] Furthermore, a plurality of ribs are provided on the rear end of the rear-bent side plate and the fixed plate.
[0008] Furthermore, a butter cup is provided on both the first rotary shaft sleeve and the second rotary shaft sleeve.
[0009] After adopting the above structure, the utility model has the following beneficial effects:
[0010] (1) The utility model can be matched with various types of folding arm type field return machines, and the installation is simple and convenient;
[0011] (2) The folding arm adopts a gradual structure, and a reinforcement plate is added inside the abdomen to improve the rigidity and strength of the folding arm;
[0012] (3) The safety pin is fixed with double support ears to avoid complete deformation;
[0013] (4) The folding arm adopts a split structure, which is simple to process and easy to install;
[0014] (5) A profiling fixed seat is provided on the folding arm, on which a profiling mechanism is installed. When the folding arm is stationary, the field return machine follows the ground around the short pin shaft under the action of the profiling mechanism, thereby ensuring that the crushed stubble height is consistent;
[0015] (6) Limits are set at the front and rear of the folding arm and the return machine. The front is limited by the front side plate and the rear is limited by the limit seat. When the return machine is working, the folding arm is locked by the front and rear limit plates on the hood of the return machine. The folding arm can only move up and down but not forward and backward, ensuring the stability of the front and rear positions of the folding arm and the return machine. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the structure of the utility model;
[0017] Figure 2 It is a rear view of the utility model;
[0018] Figure 3 It is a side view of the utility model;
[0019] Figure 4 It is a top view of the utility model;
[0020] Figure 5 for Figure 2 Sectional view of middle II;
[0021] Figure 6 for Figure 4 Cross-sectional view of middle GG;
[0022] Figure 7 for Figure 4 Cross-sectional view of EE.
[0023] Description of reference numerals:
[0024] 1 folding arm connecting head, 11 front side plate, 12 rear bent side plate, 13 inner reinforced bent plate, 14 inner reinforced plate, 15 outer reinforced plate, 16 reinforced inner bent plate, 17 connecting plate, 18 slewing sleeve one, 19 sliding bearing one, 110 long pin shaft, 111 profiling fixed seat, 112 double supporting ears, 113 connecting ears, 114 safety pin, 115 cylinder pin shaft, 2 folding arm slewing head, 21 fixed plate, 22 slewing sleeve two, 23 sliding bearing two, 24 short pin shaft, 3 profiling mechanism, 4 rib plate, 5 butter cup. DETAILED DESCRIPTION
[0025] The utility model is further described below in conjunction with the accompanying drawings.
[0026] 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.
[0027] See also Figure 1-7A reinforced folding arm of a straw returner is provided. The folding arm is a split structure, including a folding arm connecting head 1 and a folding arm rotating head 2; the folding arm connecting head 1 includes an integrally formed front side plate 11 and a rear curved side plate 12, the front side plate 11 is provided with an inner reinforcing curved plate 13 and an inner reinforcing plate 14, the rear curved side plate 12 is provided with an outer reinforcing plate 15 and a reinforced inner curved plate 16, the front end of the front side plate 11 is provided with a connecting plate 17, the connecting plate 17 is fixedly connected to the folding arm rotating head 2 by bolts, and the rear curved side plate 12 is provided with an outer reinforcing plate 15 and an inner reinforcing plate 16. A rotating shaft sleeve 18 is arranged at the rear end, a sliding bearing 19 is arranged inside the rotating shaft sleeve 18, a long pin shaft 110 is arranged inside the sliding bearing 19, a profiling fixing seat 111 is arranged on the side of the front side plate 11, and a profiling mechanism 3 is arranged on the profiling fixing seat 111; the folding arm rotating head 2 includes a fixing plate 21 fixedly connected to the connecting plate 17, a rotating shaft sleeve 22 is arranged on the fixing plate 21, a sliding bearing 23 is arranged inside the rotating shaft sleeve 22, and a short pin shaft 24 is arranged inside the sliding bearing 23. Specifically, the folding arm is a gradual structure as a whole, with an inner reinforcing bent plate 13, an inner reinforcing plate 14 and a reinforced inner bent plate 16 in the abdomen, and an outer reinforcing plate 15 is arranged on the outside, so as to improve the rigidity and strength of the folding arm; a long pin shaft 110 and a short pin shaft 24 are used to connect with the front or rear side of the field return machine, and the rigid connection is cancelled. At the same time, the field return machine is contoured with the ground around the short pin shaft under the action of the contouring mechanism, so as to ensure the consistency of the crushed stubble height and improve the work quality; the contouring mechanism 3 includes a connecting column, which is arranged through the contouring fixing seat 11, and the upper part of the connecting column The upper spring and the lower spring are respectively sleeved on the lower part, the profiling fixing seat 111 is located between the upper spring and the lower spring, and the upper spring and the lower spring are limited. The upper limit bolt and the lower limit bolt are arranged on the top and the bottom of the connecting column, and the lower limit bolt is fixedly connected with the lower spring. When running, the field return machine moves with the ground. Due to the action of the upper spring and the lower spring, the field return machine can profile and reset and float according to the height of the ground. The spring profiling system automatically profiles under the action of the rear roller and the weight of the machine, so as to achieve the effect of consistent height of the crushed stubble.
[0028] In this embodiment, a double supporting ear 112 and a connecting ear 113 are respectively provided on the left and right sides of the top of the front side plate 11, a safety pin 114 is provided inside the double supporting ear 112, a waist-shaped hole is provided inside the connecting ear 113, and a cylinder pin shaft 115 is provided inside the waist-shaped hole through a retaining ring and a split pin. The safety pin 114 is fixed by the double supporting ear 112 to avoid complete deformation; the cylinder pin shaft 115 is externally connected to the folding cylinder.
[0029] In this embodiment, a plurality of ribs 4 are disposed on the rear end of the rear curved side plate 12 and the fixed plate 21. The ribs 4 increase the strength of the rear curved side plate 12 and the fixed plate 21.
[0030] In this embodiment, a grease cup 5 is provided on both the rotary sleeve 18 and the rotary sleeve 2 22 for injecting lubricating oil to lubricate the components inside the rotary sleeve 18 and the rotary sleeve 2 22 .
[0031] In summary:
[0032] 1. The utility model optimizes the folding arm structure to improve the overall rigidity and strength;
[0033] 2. The utility model adopts a split structure, which is simple to process and easy to install;
[0034] 3. The safety pin is fixed with double supporting ears to avoid complete deformation;
[0035] 4. The utility model is provided with a profiling fixed seat, on which a profiling mechanism is installed. When working, when the folding arm is not moving, the field return machine follows the ground around the short pin shaft under the action of the profiling mechanism, thereby ensuring that the crushed stubble height is consistent;
[0036] 5. The utility model and the field returning machine can move up and down and remain relatively stable front and back.
[0037] 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 reinforced folding arm of a straw return machine, characterized in that: The folding arm is a split structure, including a folding arm connecting head and a folding arm rotating head; the folding arm connecting head includes an integrally formed front side plate and a rear bent side plate, inner reinforcing bent plates and inner reinforcing plates are respectively arranged inside the front side plate, outer reinforcing plates and reinforced inner bent plates are arranged inside the rear bent side plate, a connecting plate is arranged at the front end of the front side plate, the connecting plate is fixedly connected to the folding arm rotating head by bolts, a rotating shaft sleeve is arranged at the rear end of the rear bent side plate, a sliding bearing is arranged inside the rotating shaft sleeve, a long pin is arranged inside the sliding bearing, a profiling fixing seat is arranged on the side of the front side plate, and a profiling mechanism is arranged on the profiling fixing seat; the folding arm rotating head includes a fixed plate fixedly connected to the connecting plate, a rotating shaft sleeve is arranged on the fixed plate, a sliding bearing is arranged inside the rotating shaft sleeve, and a short pin is arranged inside the sliding bearing.
2. The reinforced folding arm of the straw return machine according to claim 1, characterized in that: Double supporting ears and connecting ears are respectively arranged on the left and right sides of the top of the front side plate, a safety pin is arranged in the double supporting ears, a waist-shaped hole is arranged inside the connecting ear, and a cylinder pin shaft is arranged inside the waist-shaped hole through a retaining ring and a cotter pin.
3. The reinforced folding arm of the straw return machine according to claim 1, characterized in that: A plurality of ribs are arranged on the rear end of the rear curved side plate and the fixed plate.
4. The reinforced folding arm of the straw return machine according to claim 1, characterized in that: The first rotary shaft sleeve and the second rotary shaft sleeve are both provided with butter cups.