Upper pull rod assembly for stabilizing agricultural implement

Abstract

The utility model discloses an upper pull rod assembly for stabilizing an agricultural implement. The upper pull rod assembly comprises a right pull rod combination, a left pull rod combination and a front pull rod combination, after the right pull rod combination, the left pull rod combination and the front pull rod combination are mounted, the free ends of the three parts form three vertexes of a triangle; the left pull rod combination and the front pull rod combination are both installed on the right pull rod combination, and the right pull rod combination, the left pull rod combination and the front pull rod combination are connected with an agricultural implement or a tractor through gaskets, spring pins and long pin shafts respectively. The position of the front pull rod combination is adjusted in a guide rail sliding connection mode, and the length of the left pull rod combination is adjusted in a threaded rod and threaded sleeve connection mode. The integral structure of the upper pull rod of the tractor is optimized, and the rigidity and the strength of an upper pull rod assembly are improved; the front pull rod is mounted in the right pull rod guide rail box and is convenient to adjust, stable and reliable; and the upper pull rod assembly is also provided with a mounting hole for the left pull rod combination, so that a left-handed adjusting screw rod and a short pin shaft are convenient to mount.

Description

Technical Field

[0001] The utility model specifically relates to the technical field of mechanical equipment, relates to the upper pull rod structure of the hydraulic suspension system of a tractor, and specifically is an upper pull rod assembly for stabilizing agricultural implements. Background Art

[0002] The hydraulic suspension system of a tractor mainly consists of two lower pull rods and their lifting rods, a lifting cylinder, and an upper pull rod. The force for lifting agricultural implements is executed by the two lower pull rods and their lifting rods and the lifting cylinder. The upper pull rod (with adjustable length) is used to adjust the front and rear positions of the agricultural implement around the lower suspension point. Its structure is relatively simple. After suspending the agricultural implement (such as a folding mower), since both ends of the upper pull rod are hinged, the agricultural implement swings greatly to both sides during walking operation, so the stability of the unit is not good, the safety is poor, and the operation effect of the agricultural implement is affected.

[0003] Based on the defects of the upper pull rod of the above-mentioned tractor hydraulic suspension system, the structure of the upper pull rod in this application is optimized, and a technical solution for reducing the left and right swing of the agricultural implement during work is provided. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an upper pull rod assembly for stabilizing agricultural implements in view of the defects and deficiencies of the prior art, so as to solve the problems put forward in the above background art, and realize structural optimization with adjustable left and right hinge widths and front and rear hinge lengths.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is: an upper pull rod assembly for stabilizing agricultural implements, and its innovation lies in that it includes a right pull rod combination, a left pull rod combination, and a front pull rod combination; the free ends of the three form the three vertices of a triangle after the right pull rod combination, the left pull rod combination, and the front pull rod combination are installed; the left pull rod combination and the front pull rod combination are both installed on the right pull rod combination, and the right pull rod combination, the left pull rod combination, and the front pull rod combination are respectively connected to the agricultural implement or the tractor through washers, spring pins, and long pin shafts; the front pull rod combination uses a sliding connection with a guide rail for position adjustment, and the left pull rod combination uses a screw and nut connection for length adjustment.

[0006] Further, the right pull rod combination is welded by a cover plate, a reinforcing ear plate, a limiting plate, a vertical plate, a first connecting plate, a second connecting plate, a right pull rod seat, and a right hinge sleeve; the cover plate is arranged on the outer side of the entire right pull rod combination, and the cover plate includes a guide rail box and a pull rod box; vertical plates are arranged on both sides inside the guide rail box; a first connecting plate and a second connecting plate are arranged inside the pull rod box, a right pull rod seat is connected between the first connecting plate and the second connecting plate, a right hinge sleeve is arranged on the right pull rod seat, and the right hinge sleeve is connected to the agricultural implement through a spring pin, a washer, and a long pin shaft; the left pull rod combination is installed on the reinforcing ear plate; the front pull rod combination is connected in the guide rail box.

[0007] Preferably, the front drawbar assembly is installed in the guide rail box and fixed on the limit plate by a lock nut, a washer and an adjusting bolt; the front drawbar assembly is welded by a front drawbar seat, a front hinge sleeve, two guide rail plates, a front connecting plate, a welding nut and a positioning plate; the guide rail plates of the front drawbar form a guide rail sliding structure with the guide rail box; a front drawbar seat is arranged on the guide rail plate, and a front hinge sleeve is arranged on the front drawbar seat; a front connecting plate is arranged between the two guide rail plates, a positioning plate is arranged at the lower end of the front connecting plate, a welding nut is arranged on the positioning plate, and the welding nut is adapted to the adjusting bolt; the front hinge sleeve is connected to the tractor by a long pin shaft.

[0008] Preferably, the left drawbar assembly includes a right-handed nut, a right-handed adjusting screw, an adjusting sleeve, a left-handed adjusting screw and a left-handed nut; the right-handed adjusting screw is a right-handed screw, the adjusting sleeve has left and right threads, the left-handed adjusting screw is a left-handed screw, both ends of the adjusting sleeve are respectively adapted to the right-handed adjusting screw and the left-handed adjusting screw and fixed by the right-handed nut and the left-handed nut respectively; one end of the left-handed adjusting screw of the left drawbar assembly is aligned with the mounting hole on the reinforcing ear plate of the right drawbar and fixed by a short pin shaft, a washer and a spring pin; a left hinge sleeve is arranged on the right-handed adjusting screw, and the left hinge sleeve is connected to the agricultural implement by a long pin shaft.

[0009] After adopting the above structure, the beneficial effects of the present utility model are as follows:

[0010] The upper drawbar assembly of the present utility model for stabilizing the agricultural implement can replace the upper drawbar of the tractor, and is simple and convenient to install; the performance is stable and reliable during the operation of the agricultural implement.

[0011] The overall structure of the upper drawbar of the tractor is optimized, and the stability of the triangle is utilized to improve the stiffness and strength of the upper drawbar assembly;

[0012] The front drawbar is installed in the guide rail box of the right drawbar, with convenient adjustment, stable and reliable; it is convenient to adjust the position of the front drawbar in the guide rail box;

[0013] Mounting holes for the left drawbar assembly are also provided on the upper drawbar assembly, facilitating the installation of the left-handed adjusting screw and the short pin shaft; a left adjusting drawbar assembly is provided to facilitate fine-tuning the agricultural implement to the optimal position.

[0014] The present invention can replace the upper drawbar of the tractor, and is simple and convenient to install. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural view of the present utility model.

[0016] Figure 2 is a top view of the present utility model.

[0017] Figure 3 It is a structural schematic diagram of the right pull rod assembly.

[0018] Figure 4 It is Figure 3 a sectional view of.

[0019] Figure 5 It is a structural schematic diagram of the front pull rod assembly.

[0020] Figure 6 It is Figure 5 a sectional view of.

[0021] Explanation of reference numerals: 1. Right pull rod assembly; 2. Long pin shaft; 3. Spring pin; 4. Washer; 5. Adjusting bolt; 6. Locking nut; 7. Right-handed adjusting screw; 8. Right-handed nut; 9. Adjusting sleeve; 10. Left-handed nut; 11. Left-handed adjusting screw; 12. Short pin shaft; 13. Front pull rod assembly; 101. Cover plate; 102. Reinforcing ear plate; 103. Limiting plate; 104. Vertical plate; 105. Connecting plate one; 106. Connecting plate two; 107. Right pull rod seat; 108. Right hinge sleeve; 1301. Front pull rod seat; 1302. Front hinge sleeve; 1303. Guide rail plate; 1304. Front connecting plate; 1305. Welding nut; 1306. Positioning plate. Specific implementation manners

[0022] The present utility model will be further described below with reference to the accompanying drawings.

[0023] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific implementation manners. It should be understood that the specific implementation manners described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0024] Please refer to Figures 1-6 , the present utility model provides a technical solution: an upper pull rod assembly for stabilizing agricultural implements, the innovation of which lies in including a right pull rod assembly 1, a left pull rod assembly and a front pull rod assembly 13; the free ends of the right pull rod assembly 1, the left pull rod assembly and the front pull rod assembly 13 form the three vertices of a triangle after installation; the left pull rod assembly and the front pull rod assembly 13 are both installed on the right pull rod assembly 1, and the right pull rod assembly 1, the left pull rod assembly and the front pull rod assembly 13 are respectively connected to the agricultural implement or the tractor through a washer 4, a spring pin 3 and a long pin shaft 2; the front pull rod assembly 13 is adjusted in position by means of a guide rail sliding connection, and the left pull rod assembly is adjusted in length by means of a screw and sleeve connection.

[0025] Further, the right pull rod assembly 1 is welded by a cover plate 101, a reinforcing ear plate 102, a limiting plate 103, a vertical plate 104, a first connecting plate 105, a second connecting plate 106, a right pull rod seat 107, and a right hinge sleeve 108; the cover plate 101 is arranged on the outer side of the whole right pull rod assembly 1, and the cover plate 101 includes a guide rail box and a pull rod box; vertical plates 104 are arranged on both sides inside the guide rail box; a first connecting plate 105 and a second connecting plate 106 are arranged inside the pull rod box, a right pull rod seat 107 is connected between the first connecting plate 105 and the second connecting plate 106, a right hinge sleeve 108 is arranged on the right pull rod seat 107, and the right hinge sleeve 108 is connected to an agricultural implement through a spring pin 3, a washer 4, and a long pin shaft 2; a left pull rod assembly is installed on the reinforcing ear plate 102; a front pull rod assembly 13 is connected in the guide rail box.

[0026] Preferably, the front pull rod assembly 13 is installed in the guide rail box and installed on the limiting plate 103 through a locking nut 6, a washer 4, and an adjusting bolt 5; the front pull rod assembly 13 is welded by a front pull rod seat 1301, a front hinge sleeve 1302, two guide rail plates 1303, a front connecting plate 1304, a welding nut 1305, and a positioning plate 1306; the guide rail plates 1303 of the front pull rod form a guide rail sliding structure with the guide rail box; a front pull rod seat 1301 is arranged on the guide rail plate 1303, and a front hinge sleeve 1302 is arranged on the front pull rod seat 1301; a front connecting plate 1304 is arranged between the two guide rail plates 1303, a positioning plate 1306 is arranged at the lower end position of the front connecting plate 1304, a welding nut 1305 is arranged on the positioning plate 1306, and the welding nut 1305 is adapted to the adjusting bolt 5; the front hinge sleeve 1302 is connected to a tractor through a long pin shaft 2.

[0027] Preferably, the left pull rod assembly includes a right-handed nut 8, a right-handed adjusting screw 7, an adjusting sleeve 9, a left-handed adjusting screw 11, and a left-handed nut 10; the right-handed adjusting screw 7 is set as a right-handed screw, the adjusting sleeve 9 is provided with left and right threads, the left-handed adjusting screw 11 is set as a left-handed screw, both ends of the adjusting sleeve 9 are adapted to the right-handed adjusting screw 7 and the left-handed adjusting screw 11 respectively and are fixed through the right-handed nut 8 and the left-handed nut 10 respectively; one end of the left-handed adjusting screw 11 of the left pull rod assembly is aligned with the mounting hole on the reinforcing ear plate 102 of the right pull rod and fixed through a short pin shaft 12, a washer, and a spring pin; a left hinge sleeve is arranged on the right-handed adjusting screw 7, and the left hinge sleeve is connected to an agricultural implement through a long pin shaft 2.

[0028] The installation sequence of the present utility model:

[0029] (1)Installation of the front drawbar assembly 13: Install the front drawbar assembly 13 into the guide rail box of the right drawbar assembly 1 and push it to the end. After installing the washer 4, lock nut 6, and adjusting bolt 5, fix the lock nut 6.

[0030] (2)Installation of the left drawbar assembly: Screw the left-handed nut 10 onto the left-handed adjusting screw rod, and then screw the left-handed adjusting screw rod 11 into one end of the left-handed adjusting sleeve 9; then screw the right-handed nut 8 onto the right-handed adjusting screw rod 7, and then screw the right-handed adjusting screw rod 7 into one end of the right-handed adjusting sleeve 9; after aligning the hinge hole at one end of the combined left drawbar assembly's left-handed adjusting screw rod 11 with the mounting hole on the strengthening ear plate 102 of the right drawbar assembly 1, insert the short pin 12, and install the washer 4 and spring pin 3.

[0031] (3)Connection to the agricultural implement: After aligning the hinge hole of the right hinge sleeve 108 on the right drawbar assembly 1 in the above combined upper drawbar assembly with the upper right suspension hole of the agricultural implement, insert the long pin 2, and install the washer 4 and spring pin 3; after aligning the left drawbar assembly with the upper left suspension hole of the agricultural implement (adjustable), insert the long pin 2, and install the washer 4 and spring pin 3.

[0032] (4)Connection to the tractor: Start the tractor and reverse. Align the three-point suspension of the tractor and the agricultural implement with the tractor. Then, hinge the two lower suspension points of the agricultural implement with the lower drawbar of the tractor's hydraulic system using a pin, and install the washer 4 and spring pin 3; finally, hinge the mounting hole of the front hinge sleeve 1302 of the front drawbar assembly 13 with the hinge hole on the tractor using a pin, and install the washer 4 and spring pin 3. If the hinge holes do not align, the position of the hinge hole in the front drawbar assembly 13 can be adjusted to make them align.

[0033] (5)Front and rear position of the agricultural implement: Start the tractor's hydraulic system, raise and lower the agricultural implement, adjust the position of the front drawbar assembly 13 to the required position of the agricultural implement, and finally fix it with the lock nut 6.

[0034] The above is only used to illustrate the technical solution of the present invention and not to limit it. Any other modifications or equivalent replacements made by those of ordinary skill in the art to the technical solution of the present invention, as long as they do not depart from the spirit and scope of the technical solution of the present invention, shall be covered by the scope of the claims of the present invention.

Claims

1. A pull rod assembly for stabilizing agricultural machinery, characterized in that: It comprises a right tie rod assembly, a left tie rod assembly and a front tie rod assembly; after the right tie rod assembly, the left tie rod assembly and the front tie rod assembly are installed, the free ends of the three form the three vertices of a triangle; the left tie rod assembly and the front tie rod assembly are both installed on the right tie rod assembly, and the right tie rod assembly, the left tie rod assembly and the front tie rod assembly are respectively connected to agricultural machinery or tractors through washers, spring pins and long pin shafts; the front tie rod assembly adopts a guide rail sliding connection method to adjust the position, and the left tie rod assembly adopts a screw sleeve connection method to adjust the length.

2. The upper tie rod assembly for stabilizing agricultural machinery according to claim 1, characterized in that: The right pull rod assembly is welded by a cover plate, a reinforcing ear plate, a limit plate, a vertical plate, a connecting plate one, a connecting plate two, a right pull rod seat, and a right hinge sleeve; the cover plate is arranged on the outside of the entire right pull rod assembly, and the cover plate includes a guide rail box and a pull rod box; vertical plates are arranged on both sides of the guide rail box; connecting plate one and connecting plate two are arranged in the pull rod box, a right pull rod seat is connected between connecting plate one and connecting plate two, a right hinge sleeve is arranged on the right pull rod seat, and the right hinge sleeve is connected to the agricultural machinery through a spring pin, a washer, and a long pin shaft; a left pull rod assembly is installed on the reinforcing ear plate; a front pull rod assembly is connected in the guide rail box.

3. The upper tie rod assembly for stabilizing agricultural machinery according to claim 2, characterized in that: The front pull rod assembly is installed in the guide rail box and is installed on the limit plate through locking nuts, washers and adjusting bolts; the front pull rod assembly is welded by a front pull rod seat, a front hinge sleeve, two guide rail plates, a front connecting plate, a welding nut and a positioning plate; the guide rail plate of the front pull rod and the guide rail box form a guide rail sliding structure; a front pull rod seat is provided on the guide rail plate, and a front hinge sleeve is provided on the front pull rod seat; a front connecting plate is provided between the two guide rail plates, a positioning plate is provided at the lower end position of the front connecting plate, a welding nut is provided on the positioning plate, and the welding nut is adapted to the adjusting bolt; the front hinge sleeve is connected to the tractor through a long pin shaft.

4. The upper tie rod assembly for stabilizing agricultural machinery according to claim 2, characterized in that: The left pull rod assembly includes a right-handed nut, a right-handed adjusting screw, an adjusting screw sleeve, a left-handed adjusting screw, and a left-handed nut; the right-handed adjusting screw is set as a right-handed screw, the adjusting screw sleeve is provided with positive and negative threads, the left-handed adjusting screw is set as a left-handed screw, the two ends of the adjusting screw sleeve are respectively adapted to the right-handed adjusting screw and the left-handed adjusting screw and are respectively fixed by the right-handed nut and the left-handed nut; the hinge hole at one end of the left-handed adjusting screw of the left pull rod assembly is aligned with the mounting hole on the reinforcing ear plate of the right pull rod and is fixed by a short pin, a washer, and a spring pin; the right-handed adjusting screw is provided with a left hinge sleeve, and the left hinge sleeve is connected to the agricultural machinery through a long pin.

Images