CN215171534U

CN215171534U - Wheel hub unit structure of agricultural high-load high-speed stubble cleaning rake

Info

Publication number: CN215171534U
Application number: CN202121578754.7U
Authority: CN
Inventors: 王朱裔; 言行周; 陆玉兰; 顾建刚
Original assignee: Changshu Elite Parts Co ltd
Current assignee: Changshu Elite Parts Co ltd
Priority date: 2021-07-12
Filing date: 2021-07-12
Publication date: 2021-12-14
Anticipated expiration: 2031-07-12

Abstract

A hub unit structure of an agricultural high-load high-speed stubble cleaning rake comprises a shell and a hub shaft arranged in the shell, wherein one end of the hub shaft extends out of the shell, a reinforcing layer is arranged on the inner side surface of the shell, an upper rolling groove and a lower rolling groove are formed in the inner side surface of the reinforcing layer, a hub rotating supporting shaft is arranged at one end of the hub shaft, an upper inner ring and a lower inner ring are arranged on the hub rotating supporting shaft, an upper ball retainer and a lower ball retainer are arranged on the upper inner ring and the lower inner ring, a group of upper ball grooves are formed in the outer circumference of the upper ball retainer, a group of lower ball grooves are formed in the outer circumference of the lower ball retainer, lower balls are arranged in the lower ball grooves, one end of the hub rotating supporting shaft is provided with threads, an inner ring locking nut is fixedly screwed on the threads, an upper sealing gasket is arranged between the upper inner ring and the reinforcing layer, a lower sealing gasket is arranged between the lower inner ring and the reinforcing layer, and a sealing area is formed between the upper sealing gasket and the lower sealing gasket. The advantages are that: the load and the impact resistance of the wheel hub are improved, the risks of shell deformation and lubricating oil leakage are reduced, and the service life of the wheel hub is prolonged.

Description

Wheel hub unit structure of agricultural high-load high-speed stubble cleaning rake

Technical Field

The utility model belongs to the technical field of the wheel hub among the agricultural machine, concretely relates to high-speed stubble-cleaning harrow wheel hub unit structure of agricultural high load.

Background

In the agricultural production process, the crop stubble after reaping often stays in the farmland, whether the stubble ploughing and the quality of the stubble ploughing effect can directly influence the growth of the next wave crop, the process of stubble ploughing not only can improve the seeding quality, but also can prevent the stubble from covering the farmland to form a high-temperature high-humidity environment, and simultaneously can destroy the pest breeding habitat to reduce insect pests, the manual work is often used for stubble ploughing in the past, the stubble ploughing efficiency is low, the stubble ploughing effect is poor, and a large amount of manpower and material resources can be wasted. With the development of science and technology, agricultural stubble cleaning machines are commonly used today to cut up stubbles to improve the organic matter content therein, and also to improve the porosity of the soil to improve the air permeability, water permeability, drought resistance and waterlogging resistance of the soil, so as to create favorable conditions for mechanical seeding, wherein a high-speed stubble cleaning rake is a mainstream stubble cleaning machine abroad and is deeply favored by consumers, while a hub is one of the main components in the stubble cleaning rake, is used for rotationally fixing a plough cutter arm and connecting a cutter head, often needs to bear larger load and impact of stones in soil, the stability and the load capacity thereof directly influence the service life of the stubble cleaning rake, and particularly, the hub shaft is abraded and polluted by lubricating oil leakage caused by the deformation of a shell and the reduction of sealing performance after pressure and impact, but the current hub structure generally has poor stability and is inconvenient to maintain, Short service life, and thus, the practical requirements of consumers cannot be met.

In view of the above circumstances, there is a need for a hub unit structure of agricultural high-load high-speed stubble ploughing harrow with simple structure, easy maintenance, and strong pressure and collision resistance. The applicant has therefore made an advantageous design, in the context of which the solution to be described below is made.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a high-speed stubble-cleaning harrow wheel hub unit structure of agricultural high load helps improving the assembly structure of wheel hub axle and the cooperation structure of shaft and shell and improves wheel hub's load and anti striking ability, is favorable to reducing the risk that shell deformation and lubricating oil were revealed and prolongs wheel hub's life.

The utility model aims at achieving the purpose, a high-speed stubble-cleaning harrow wheel hub unit structure of agricultural high load, set up in the casing and one end extends the wheel hub axle of casing, its characterized in that including a casing and a rotation: the inner side surface of the shell is compounded with a reinforcing layer, the inner side surface of the reinforcing layer is provided with an upper rolling groove and a lower rolling groove, one end of the hub shaft is provided with a hub rotating support shaft, the hub rotating support shaft is respectively sleeved with an upper inner ring and a lower inner ring, the upper inner ring and the lower inner ring are respectively provided with an upper ball retainer and a lower ball retainer at positions corresponding to the upper rolling groove and the lower rolling groove, the outer circumference of the upper ball retainer is provided with a group of upper ball grooves at intervals, the upper ball grooves are respectively provided with an upper ball which is abutted against the upper rolling groove for rotating, the outer circumference of the lower ball retainer is provided with a group of lower ball grooves at intervals, the lower ball grooves are respectively provided with a lower ball which is abutted against the lower rolling groove for rotating, and one end part of the hub rotating support shaft is provided with a circle of screw thread, the hub is characterized in that an inner ring locking nut is fixedly screwed on the thread, the inner ring locking nut presses and fixes the upper inner ring and the lower inner ring on the hub shaft, an upper sealing gasket is arranged between the upper inner ring and the reinforcing layer and above the upper ball retainer, a lower sealing gasket is arranged between the lower inner ring and the reinforcing layer and below the lower ball retainer, a sealing area is formed between the upper sealing gasket and the lower sealing gasket, and lubricating oil is filled in the sealing area.

In a specific embodiment of the present invention, a circle of oil seal is disposed in the housing at a position above the upper sealing pad, and the oil seal is disposed between the reinforcing layer and the upper inner ring.

In another specific embodiment of the present invention, a baffle is further clamped between the upper inner ring and the hub axle, and a baffle sealing ring is disposed between the baffle and the upper inner ring at a position that is attached to the hub rotation support shaft.

In another specific embodiment of the present invention, a bottom cover is disposed on one end of the housing, a bottom cover sealing groove is disposed on the inner side of the housing at a position of the bottom cover, and a bottom cover sealing ring is disposed in the bottom cover sealing groove and abuts against the bottom cover.

In another specific embodiment of the present invention, the upper end of the hub axle is formed with a coulter arm fixing shaft, and a screw hole is formed at the end of the coulter arm fixing shaft.

In yet another specific embodiment of the present invention, the lower end of the housing is formed with a ring of flanges, and the flanges are spaced apart to form a ring of flange holes.

In still another specific embodiment of the present invention, the reinforcing layer is provided with an upper gasket caulking groove and a lower gasket caulking groove at positions corresponding to the upper gasket and the lower gasket, respectively.

In a more specific embodiment of the present invention, the upper sealing gasket and the lower sealing gasket are inner and outer ring double-sided sealing rings.

The utility model adopts the above structure after, beneficial effect who has: because the structure that the reinforcing layer is additionally arranged on the inner side of the shell and is tightly matched with the sealing gasket to form the sealing area is adopted, the load and the impact resistance of the wheel hub are improved, the risks of shell deformation and lubricating oil leakage are reduced, and the service life of the wheel hub is prolonged.

Drawings

Fig. 1 is a schematic perspective view of an embodiment of the present invention.

Fig. 2 is a side cross-sectional view of the embodiment of fig. 1.

In the figure: 1. the sealing structure comprises a shell, 11 reinforcing layers, 111 upper rolling grooves, 112 lower rolling grooves, 12 upper sealing gaskets, 121 upper sealing gasket embedding grooves, 13 lower sealing gaskets, 131 lower sealing gasket embedding grooves, 14 oil seals, 15 bottom covers, 16 bottom cover sealing grooves, 161 bottom cover sealing rings, 17 flanges and 171 flange holes; 2. the coulter arm fixing shaft comprises a hub shaft, 21, a hub rotation supporting shaft, 211, threads, 22, an upper inner ring, 23, a lower inner ring, 24, an upper ball retainer, 241, an upper ball groove, 25, a lower ball retainer, 251, a lower ball groove, 26, a coulter arm fixing shaft, 261, a coulter arm fixing shaft screw hole, 27, an inner ring locking nut, 28, a baffle, 281 and a baffle sealing ring.

Detailed Description

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

In the following description, all the concepts related to the directions or orientations of up, down, left, right, front and rear are based on the position of fig. 1, and thus should not be interpreted as limiting the technical solution provided by the present invention.

Referring to fig. 1 and 2, a hub unit structure of an agricultural high-load high-speed stubble ploughing harrow is shown, which comprises a housing 1 and a hub shaft 2 which is rotatably arranged in the housing 1 and one end of which extends out of the housing 1.

As the technical scheme provided by the utility model: a reinforcing layer 11 is combined on the inner side surface of the housing 1, an upper rolling groove 111 and a lower rolling groove 112 are formed on the inner side surface of the reinforcing layer 11, a hub rotation support shaft 21 is formed at one end of the hub shaft 2, an upper inner ring 22 and a lower inner ring 23 are respectively sleeved on the hub rotation support shaft 21, an upper ball retainer 24 and a lower ball retainer 25 are respectively arranged on the upper inner ring 22 and the lower inner ring 23 at positions corresponding to the upper rolling groove 111 and the lower rolling groove 112, a group of upper ball grooves 241 are respectively arranged on the outer circumference of the upper ball retainer 24 at intervals, an upper ball 242 rotating against the upper rolling groove 111 is respectively arranged in the upper ball grooves 241, a group of lower ball grooves 251 are respectively arranged on the outer circumference of the lower ball retainer 25 at intervals, and a lower ball 252 rotating against the lower rolling groove 112 is respectively arranged in the lower ball grooves 251, one end of the hub rotation support shaft 21 is formed with a single turn of thread 211, an inner ring lock nut 27 is screwed onto the thread 211, the inner ring lock nut 27 is used to press and fix the upper inner ring 22 and the lower inner ring 23 onto the hub shaft 2, an upper seal 12 is disposed between the upper inner ring 22 and the reinforcement layer 11 and above the upper ball retainer 24, a lower seal 13 is disposed between the lower inner ring 23 and the reinforcement layer 11 and below the lower ball retainer 25, a seal area is formed between the upper seal 12 and the lower seal 13, and the seal area is filled with lubricating oil.

Further, a ring of oil seal 14 is provided in the aforementioned housing 1 at a position above the upper seal gasket 12, the oil seal 14 being provided between the reinforcement layer 11 and the upper inner ring 22.

In the present embodiment, a baffle 28 is further clamped between the upper inner ring 22 and the hub axle 2, and a baffle seal 281 is disposed between the baffle 28 and the upper inner ring 22 at a position abutting against the hub rotation supporting axle 21.

Referring to fig. 1 and fig. 2, an end cap of the housing 1 is provided with a bottom cap 15, a bottom cap sealing groove 16 is formed on an inner side surface of the housing 1 at a position of the bottom cap 15, and a bottom cap sealing ring 161 abutting against the bottom cap 15 is disposed in the bottom cap sealing groove 16.

Further, a coulter arm fixing shaft 26 is formed at the upper end of the hub shaft 2, and a coulter arm fixing shaft screw hole 261 is formed at the end of the coulter arm fixing shaft 26.

In this embodiment, a ring of flanges 17 is formed at the lower end of the housing 1, and a ring of flange holes 171 are spaced apart from each other on the flanges 17.

Further, the reinforcing layer 11 is formed with an upper gasket groove 121 and a lower gasket groove 131 at positions corresponding to the upper gasket 12 and the lower gasket 13, respectively. The upper seal gasket 12 and the lower seal gasket 13 are inner and outer ring double-sided seal rings.

With reference to fig. 1 and fig. 2, when the hub is needed, the hub is fixedly connected to the flange hole 171 and the cutter head bolt of the high-speed stubble ploughing rake through the flange 17, and the plow blade arm is fixedly mounted on the hub shaft 2 through the plow blade arm fixing shaft 26 and the plow blade arm fixing shaft screw hole 261, the plow blade arm drives the hub shaft 2, the hub rotation support shaft 21, the upper inner ring 22 and the lower inner ring 23 to rotate during rotation, when the plow blade arm works, the upper ball 242 and the lower ball 252 roll against the reinforcing layer 11 in the lubricating oil in the sealing area, so that the stability and the load capacity of the hub are greatly improved, and when the hub is impacted, the housing 1 and the reinforcing layer 11 can ensure that the hub is not deformed after being impacted, and the lubricating oil is prevented from leaking.

Claims

1. An agricultural high-load high-speed stubble ploughing harrow hub unit structure, comprising a shell (1) and a hub shaft (2) which is rotatably arranged in the shell (1) and one end of which extends out of the shell (1), characterized in that: the inner side surface of the shell (1) is compounded with a reinforcing layer (11), the inner side surface of the reinforcing layer (11) is provided with an upper rolling groove (111) and a lower rolling groove (112), one end of the hub shaft (2) is provided with a hub rotating support shaft (21), the hub rotating support shaft (21) is respectively sleeved with an upper inner ring (22) and a lower inner ring (23), positions on the upper inner ring (22) and the lower inner ring (23) corresponding to the upper rolling groove (111) and the lower rolling groove (112) are respectively provided with an upper ball retainer (24) and a lower ball retainer (25), the outer circumference of the upper ball retainer (24) is provided with a group of upper ball grooves (241) at intervals, and an upper ball (242) which rotates by being abutted against the upper rolling groove (111) is respectively arranged in the upper ball grooves (241), a group of lower ball grooves (251) are arranged on the outer circumference of the lower ball retainer (25) at intervals, lower balls (252) which are abutted against the lower rolling grooves (112) to rotate are respectively arranged in the lower ball grooves (251), one end part of the hub rotating supporting shaft (21) is provided with a circle of screw thread (211), an inner ring locking nut (27) is fixedly screwed on the screw thread (211), the inner ring locking nut (27) presses and fixes an upper inner ring (22) and a lower inner ring (23) on the hub shaft (2), an upper sealing gasket (12) is arranged between the upper inner ring (22) and the reinforcing layer (11) and at a position above the upper ball retainer (24), a lower sealing gasket (13) is arranged between the lower inner ring (23) and the reinforcing layer (11) and at a position below the lower ball retainer (25), and a sealing area is formed between the upper sealing gasket (12) and the lower sealing gasket (13), and the sealing area is filled with lubricating oil.

2. An agricultural high-load high-speed stubble ploughing and harrowing hub unit structure according to claim 1, characterized in that a ring of oil seal (14) is provided in the housing (1) at a position above the upper sealing gasket (12), the oil seal (14) being provided between the reinforcing layer (11) and the upper inner ring (22).

3. The agricultural high-load high-speed stubble ploughing and harrowing hub unit structure as claimed in claim 1, wherein a baffle (28) is further clamped between the upper inner ring (22) and the hub axle (2), and a baffle sealing ring (281) is disposed between the baffle (28) and the upper inner ring (22) at a position abutting against the hub rotation support axle (21).

4. The agricultural high-load high-speed stubble ploughing and harrowing hub unit structure according to claim 1, wherein an end cap of the housing (1) is provided with a bottom cap (15), a bottom cap sealing groove (16) is formed on the inner side surface of the housing (1) at the position of the bottom cap (15), and a bottom cap sealing ring (161) abutting against the bottom cap (15) is arranged in the bottom cap sealing groove (16).

5. The agricultural high-load high-speed stubble ploughing harrow hub unit structure according to claim 1, wherein the upper end of the hub shaft (2) is formed with a coulter arm fixing shaft (26), and a coulter arm fixing shaft screw hole (261) is formed at the end of the coulter arm fixing shaft (26).

6. An agricultural high-load high-speed stubble ploughing harrow hub unit structure according to claim 1, characterized in that the lower end of the housing (1) is formed with a ring of flanges (17), and the flanges (17) are provided with a ring of flange holes (171) at intervals.

7. The agricultural high-load high-speed stubble ploughing harrow hub unit structure as claimed in claim 1, wherein the reinforcing layer (11) is provided with an upper gasket caulking groove (121) and a lower gasket caulking groove (131) at positions corresponding to the upper gasket (12) and the lower gasket (13), respectively.

8. The agricultural high-load high-speed stubble ploughing harrow hub unit structure according to claim 1, characterized in that the upper sealing gasket (12) and the lower sealing gasket (13) are inner and outer ring double-sided sealing rings.