CN218526670U

CN218526670U - Spring coulter arm assembly

Info

Publication number: CN218526670U
Application number: CN202223212704.4U
Authority: CN
Inventors: 王朱裔; 陆玉兰; 严睿聪
Original assignee: Changshu Elite Parts Co ltd
Current assignee: Changshu Elite Parts Co ltd
Priority date: 2022-11-30
Filing date: 2022-11-30
Publication date: 2023-02-28
Anticipated expiration: 2032-11-30

Abstract

A spring coulter arm assembly belongs to the technical field of agricultural machinery. Comprises a coulter arm, a hub unit, a notch harrow sheet, a spring supporting beam, a spring and a coulter arm beam, wherein the spring supporting beam is provided with an adjusting end at one end, a plurality of adjusting holes are arranged on the adjusting end, a hinge joint is formed at the other end of the spring supporting beam, the adjusting ends of a pair of spring supporting beams are respectively clamped at two sides of the upper end of the coulter arm, the hinge joint of the pair of spring supporting beams is clamped on two sides of the mounting seat, the pair of spring supporting beams are sleeved with stop blocks, the stop blocks abut against the hinge joint, the springs are sleeved on the pair of spring supporting beams, one end of each spring supporting beam abuts against the upper end of the plough coulter arm, the other end of each spring supporting beam abuts against the stop blocks, and the adjusting pin is inserted into one of the adjusting holes. The advantages are that: the springs are used as the buffer devices, so that the impact force of the notched harrow pieces during tillage can be relieved, and the pretightening force can be adjusted according to different tillage requirements.

Description

Spring coulter arm assembly

Technical Field

The utility model belongs to the technical field of agricultural machine, concretely relates to spring coulter arm subassembly.

Background

Soil preparation is one of the most important operation links in agricultural production, and the coulter arm component is a core component of the combined soil preparation machine and comprises a coulter arm and a coulter, wherein the coulter is arranged in front of a main plough body through the coulter arm, so that the combined soil preparation machine has good functions of loosening soil, crushing soil and cleaning stubble, is frequently used for soil preparation after cultivation, and can also be used for shallow ploughing and cleaning stubble and harrowing instead of ploughing. The coulter has two types, namely a straight coulter and a disc coulter, wherein when the disc coulter works, the resistance is small due to rolling soil cutting, grass is not easy to wind, and the disc coulter is generally applied to the mechanical plough. The surface of cultivated soil has large fluctuation and is often distributed with soil blocks and gravels, particularly in spring, the hard frozen soil in spring can seriously obstruct the leveling of the soil, the hard frozen soil can impact a coulter, the service life of the coulter is influenced, and the cultivation efficiency and the cultivation quality are influenced. The coulter arm assembly works in a severe environment with dust and gravel for a long time and bears strong impact, and the structural design of the coulter arm assembly has important influence on the operation performance, reliability and maintenance convenience of the whole machine tool. The traditional coulter arm assembly has poor shock resistance, short service life, no adjustable pretightening force and limited use range, and can not ensure uniform tillage depth when plowing soil with different heights or encountering stones.

In view of the above-identified prior art, there is a need for an improved construction of an existing plow blade arm assembly, and for this reason the applicant has made an advantageous design and the solutions described below have been made in this context.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a spring coulter arm subassembly has better shock resistance to adjustable pretightning force is in order to adapt to different farming conditions, guarantees unified farming degree of depth.

The utility model aims at reaching like this, a spring coulter arm subassembly, including coulter arm, wheel hub unit and breach rake, the wheel hub unit connect the lower extreme at the coulter arm, breach rake supporting on the wheel hub unit, characteristics are: the plough coulter arm device is characterized by further comprising a spring supporting beam, a spring and a plough coulter arm beam, wherein an adjusting end is formed at one end of the spring supporting beam, a plurality of adjusting holes which are sequentially intersected along the length direction are formed in the adjusting end, a hinge joint is formed at the other end of the spring supporting beam, a pair of spring supporting beams are arranged in a face-to-face mode, the adjusting ends of the pair of spring supporting beams are respectively clamped at two sides of the upper end of the plough coulter arm, the hinge joints of the pair of spring supporting beams are clamped at two sides of a mounting seat and hinged with the mounting seat, the mounting seat is connected and mounted with a rack of a land preparation machine, a stop block is sleeved on the pair of spring supporting beams and abutted against the hinge joints, and the spring is sleeved on the pair of spring supporting beams, one end of the spring is abutted against the upper end of the plough coulter arm, the other end of the spring is abutted against the stop block, an adjusting pin is inserted into one adjusting hole in the adjusting holes, a pair of adjusting ends are connected and fastened, the pretightening force of the spring is changed by changing the positions of the adjusting pins in the adjusting holes, the upper end of the plough coulter arm is back to the spring and is provided with an adjusting pin abdicating notch, the adjusting pin is abutted against the adjusting pin abdicating notch, the plough coulter arm cross beams are provided with a pair and are arranged face to face below the spring supporting beam, one end of each plough coulter arm cross beam is clamped on two sides of the plough coulter arm and is fixedly connected with the plough coulter arm, and the other end of each plough coulter arm cross beam is clamped on two sides of the mounting seat and is hinged with the mounting seat.

In a specific embodiment of the present invention, the hub unit includes a rotating shaft and a flange outer ring, one end of the rotating shaft is fixedly connected to the bottom of the coulter arm, the other end extends into the cavity of the flange outer ring, and a pair of channels are distributed along the periphery of the rotating shaft at intervals along the axial direction at the other end, a rolling element is fixedly disposed in each channel through a retainer, and the rolling element is in sliding fit with the inner side wall of the flange outer ring.

The utility model discloses a further concrete embodiment, the flange outer lane all be provided with the sealing washer between the inside wall of front and back end and the lateral wall of pivot to the opening part at the front end has set the shield, the inside die cavity of flange outer lane constitute for sealed chamber, this sealed intracavity is filled with the grease.

In another specific embodiment of the present invention, the flange outer ring is provided with threaded holes at the rear end and around the peripheral edge at intervals, the bottom of the flange outer ring abuts against the notched harrow plate, and the screw passes through the threaded hole to fasten the notched harrow plate to the flange outer ring.

In another specific embodiment of the present invention, the end surface of the end of the shaft connected to the coulter arm is formed as an inclined surface, the side of the coulter arm is formed with a concave hole adapted to the inclined surface, and the inclined surface is welded in the concave hole.

In still another embodiment of the present invention, a gasket is provided on the adjusting pin.

The utility model discloses owing to adopted above-mentioned structure, compare with prior art, the beneficial effect who has is: the spring is used as a buffer device, so that the impact force applied to the notched harrow piece during tillage can be relieved, the service life of the notched harrow piece is prolonged, and the stable working state can be kept even in a severe tillage environment; the pre-tightening force can be adjusted according to different farming requirements, so that the notched harrow pieces are more attached to soil during farming, uniform farming depth can be ensured when different heights of soil are cultivated or stones are encountered, and the application range is expanded; the hub unit does not need later maintenance, so that the use cost is saved, the hub unit can be quickly connected with the notch rake blade, and the replacement time of the notch rake blade is reduced; the whole structure is simple and reasonable, the connection strength is high, the connection among all the components is convenient, and the later maintenance and the repair are convenient.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is an assembly schematic diagram of the coulter arm, the hub unit and the notched harrow plate of the utility model.

Fig. 3 is a schematic structural view of the hub unit of the present invention.

In the figure: 1. a plough coulter arm, 11, an adjusting pin abdicating notch, 12, a concave hole; 2. the hub unit comprises a hub unit, 21. A rotating shaft, 211. A channel, 212. An inclined plane, 22. A flange outer ring, 221. A threaded hole, 23. A retainer, 24. A rolling body, 25. A sealing ring, 26. A dust cover; 3. a notched harrow plate; 4. a spring support beam, 41, an adjusting end, 411, an adjusting hole, 412, an adjusting pin, 4121, a gasket, 42, a hinge joint; 5. a spring; 6. a coulter arm beam; 7. a mounting seat; 8. a frame; 9. and a stop block.

Detailed Description

The following detailed description of the embodiments of the present invention is provided in conjunction with the accompanying drawings, but the description of the embodiments is not intended to limit the technical solutions, and any changes made in the form of the present invention rather than the essential changes should be considered as the protection scope of the present invention.

In the following description, any concept related to the directionality (or the directional property) of up, down, left, right, front, and rear is intended for the position state of the drawing being described, and is intended to facilitate understanding by the public, and thus should not be construed as a limitation to the technical solution provided by the present invention.

Referring to fig. 1 and 2, the present invention relates to a spring coulter arm assembly, which includes a coulter arm 1, a hub unit 2, a notch rake 3, a spring support beam 4, a spring 5 and a coulter arm beam 6. The hub unit 2 is connected to the lower end of the plough coulter arm 1, and the notch harrow plate 3 is supported on the hub unit 2. An adjusting end 41 is formed at one end of the spring support beam 4, and a plurality of adjusting holes 411 which are sequentially crossed along the length direction are formed on the adjusting end 41. The spring support beam 4 is formed with a hinge joint 42 at the other end. The spring support beams 4 are paired and arranged to face each other. The adjusting ends 41 of the pair of spring support beams 4 are respectively clamped at two sides of the upper end of the coulter arm 1, and the hinged joints 42 of the pair of spring support beams 4 are clamped at two sides of a mounting seat 7 and are hinged with the mounting seat 7 through pin shafts. The mounting seat 7 is welded with a frame 8 of the land preparation machine. The pair of spring supporting beams 4 are sleeved with a stop dog 9, the stop dog 9 is abutted against the hinge joint 42, the spring 5 is sleeved on the pair of spring supporting beams 4, one end of the spring 5 is abutted against the upper end of the plough coulter arm 1, and the other end of the spring 5 is abutted against the stop dog 9. An adjusting pin 412 is inserted into one of the adjusting holes 411 to connect and fasten the pair of adjusting ends 41, and a spacer 4121 is provided on the adjusting pin 412 to prevent the adjusting pin 412 from falling out of the adjusting hole 411. The pretightening force of the spring 5 is changed by changing the positions of the adjusting pins 412 in the adjusting holes 411, in this embodiment, three adjusting holes 411 are illustrated, and correspondingly, the spring 5 has three pretightening force adjusting gears, and when the adjusting pins 412 are located in one adjusting hole 411 closest to the spring 5, the pretightening force of the spring 5 is the maximum; the pretension of the spring 5 is minimal when the adjustment pin 412 is located in an adjustment hole 411 that is located furthest away from the spring 5. The upper end of the coulter arm 1 is back to the spring 5, an adjusting pin abdicating notch 11 is arranged, the adjusting pin 412 is abutted against the adjusting pin abdicating notch 11, the spring 5 is ensured to be abutted against between the coulter arm 1 and the stop block 9, and high pretightening force is provided. The pair of coulter arm beams 6 are arranged below the spring supporting beam 4 in a face-to-face mode, one ends of the pair of coulter arm beams 6 are clamped on two sides of the coulter arm 1 and fixedly connected with the coulter arm 1 through bolts and nuts, and the other ends of the pair of coulter arm beams 6 are clamped on two sides of the mounting seat 7 and hinged with the mounting seat 7 through pin shafts. The coulter arm 1, the spring supporting beam 4, the coulter arm beam 6 and the mounting seat 7 are all made of sheet metal parts, and are convenient to disassemble and assemble.

Referring to fig. 3, the hub unit 2 includes a rotating shaft 21 and a flange outer 22. One end of the rotating shaft 21 is fixedly connected with the bottom of the coulter arm 1, the other end extends into the cavity of the flange outer ring 22, a pair of channels 211 distributed along the periphery of the rotating shaft 21 are distributed at intervals along the axial direction at the other end, a rolling body 24 is fixedly arranged in each channel 211 through a retainer 23, and the rolling bodies 24 are in sliding fit with the inner side wall of the flange outer ring 22, so that an integral rolling structure is formed. The rolling elements 24 are balls, and constitute a hub bearing together with the cage 23. The flange outer ring 22 is provided with a seal ring 25 between the inner side walls of the front end and the rear end and the outer side wall of the rotating shaft 21, a dust cover 26 is arranged at the opening at the front end, the inner cavity of the flange outer ring 22 is a sealed cavity, grease is filled in the sealed cavity, and later maintenance is omitted. In this embodiment, the flange outer 22 and the bearing are integrated, so that the inner space of the flange outer 22 can be fully utilized, and the bearing capacity of the bearing can be improved. The flange outer ring 22 has perfect sealing performance on one side of the coulter arm 1 and one side of the notch rake blade 3, and can maintain a maintenance-free use state. The flange outer ring 22 is provided with threaded holes 221 at the rear end and around the peripheral edge at intervals, the bottom of the flange outer ring 22 is abutted against the notch rake 3, and the screws penetrate through the threaded holes 221 to fasten the notch rake 3 on the flange outer ring 22. The notch harrow plates 3 are quickly connected with the hub unit 2 through screws, so that the replacement time of the notch harrow plates 3 is shortened, and the maintenance is convenient.

Since the chipper blade 3 needs to be kept at a certain angle with the ground during cultivation, the end surface of the rotary shaft 21 at the end connected to the coulter arm 1 is formed as an inclined surface 212. The side of the plough coulter arm 1 is formed with a concave hole 12 which is matched and installed with the inclined plane 212, the inclined plane 212 is welded in the concave hole 12, and the concave hole 12 plays a role in positioning for the welding rotating shaft 21.

The utility model discloses a spring 5 is as buffer, 3 atress rolls of breach harrow piece when, compression spring 5 exerts the pretightning force to breach harrow piece 3 by spring 5. This technical scheme has third grade pretightning force regulatory function, and agricultural operator can adjust according to the needs of oneself, and slight undulation during the filtration farming for breach rake piece 3 can guarantee unified farming degree of depth at the during operation soil of laminating more, in the soil farming of different height or when meetting the stone, can be with in it soil of impressing when meetting the stone very much, and not frequent beating.

Claims

1. A spring coulter arm assembly, includes coulter arm (1), wheel hub unit (2) and breach harrow piece (3), wheel hub unit (2) connect the lower extreme at coulter arm (1), breach harrow piece (3) support on wheel hub unit (2), its characterized in that: the plough coulter arm structure is characterized by further comprising a spring supporting beam (4), a spring (5) and a plough coulter arm beam (6), wherein an adjusting end (41) is formed at one end of the spring supporting beam (4), a plurality of adjusting holes (411) which are sequentially crossed along the length direction are formed in the adjusting end (41), a hinge joint (42) is formed at the other end of the spring supporting beam (4), the spring supporting beam (4) is provided with a pair of adjusting holes, the adjusting ends (41) are arranged face to face, the adjusting ends (41) of the pair of spring supporting beams (4) are respectively clamped at two sides of the upper end of the plough coulter arm (1), the hinge joints (42) of the pair of spring supporting beams (4) are clamped at two sides of a mounting seat (7) and hinged with the mounting seat (7), the mounting seat (7) is connected and installed with a frame (8) of a land preparation machine, a stopper (9) is sleeved on the pair of spring supporting beams (4), the stopper (9) is abutted against the hinge joint (42), the spring (5) is sleeved on the pair of spring supporting beams (4), one end of the adjusting holes (411) are abutted against one adjusting hole (411) of the adjusting holes (1), and the adjusting pin (412) is inserted into one adjusting hole, the pretightning force of spring (5) through changing adjusting pin (412) position in a plurality of regulation holes (411) and change, the upper end of coulter arm (1) and back to spring (5) seted up adjusting pin notch (11) of stepping down, adjusting pin (412) support and lean on in this adjusting pin notch (11) of stepping down, coulter arm crossbeam (6) have a pair ofly, set up face to face each other in the below of spring supporting beam (4), the one end of a pair of coulter arm crossbeam (6) is pressed from both sides of coulter arm (1) and with coulter arm (1) fixed connection, the other end of a pair of coulter arm crossbeam (6) is pressed from both sides and is established both sides of mount pad (7) and articulate mutually with mount pad (7).

2. The spring coulter arm assembly as set forth in claim 1, wherein the hub unit (2) comprises a rotating shaft (21) and a flange outer ring (22), one end of the rotating shaft (21) is fixedly connected with the bottom of the coulter arm (1), the other end extends into a cavity of the flange outer ring (22), a pair of channels (211) distributed along the periphery of the rotating shaft (21) are distributed on the other end along the axial direction at intervals, a rolling body (24) is fixedly arranged in each channel (211) through a retainer (23), and the rolling body (24) is in sliding fit with the inner side wall of the flange outer ring (22).

3. The spring coulter arm assembly as set forth in claim 2, wherein the flange outer ring (22) is provided with a sealing ring (25) between the inner side wall of the front end and the outer side wall of the rotating shaft (21), and a dust cap (26) is provided at the opening of the front end, the inner cavity of the flange outer ring (22) is formed into a sealed cavity, and grease is filled in the sealed cavity.

4. A spring plow blade arm assembly as defined in claim 3, wherein said flange outer race (22) is provided with threaded holes (221) at intervals at the rear end and around the peripheral edge, the bottom of said flange outer race (22) abuts against the notched blade (3), and screws are passed through the threaded holes (221) to fasten the notched blade (3) to the flange outer race (22).

5. A spring coulter arm assembly as set forth in claim 2, wherein the end surface of the end of the shaft (21) connected to the coulter arm (1) is formed as a ramp (212), the side of the coulter arm (1) is formed with a recess (12) fitted with the ramp (212), and the ramp (212) is welded in the recess (12).

6. A spring plow blade arm assembly as defined in claim 1, wherein said adjustment pin (412) is provided with a washer (4121).