CN217558802U

CN217558802U - Bearing seat for mounting rotary cultivator cutter shaft

Info

Publication number: CN217558802U
Application number: CN202221435623.8U
Authority: CN
Inventors: 刘超; 刘元正; 孟桂平; 朱须友
Original assignee: Anhui Hongxiang Agricultural Machinery Co ltd
Current assignee: Anhui Hongxiang Agricultural Machinery Co ltd
Priority date: 2022-06-10
Filing date: 2022-06-10
Publication date: 2022-10-11
Anticipated expiration: 2032-06-10

Abstract

The utility model relates to the technical field of rotary cultivators, in particular to a bearing seat for mounting a rotary cultivator cutter shaft, which comprises a seat body, a front seat cover, a rear sealing cover and a bearing, wherein the front seat cover is hermetically connected with the front end of the seat body, oil seal assemblies are respectively arranged in the seat body and the front seat cover, a round hole for passing through the cutter shaft head is arranged on the front seat cover, a felt ring is arranged on the inner wall of the round hole, the bearing is arranged in a mounting groove at the rear end of the seat body, a pressing ring which extends into the mounting groove to tightly fix the outer ring of the bearing is arranged at the inner end of the rear sealing cover, and the rear sealing cover is detachably connected with the rear end face of the seat body through a connecting piece; this bearing frame directly has the clamping ring in the inner extension of back closing cap, and the clamping ring stretches into the mounting groove and supports the pressure fastening with the bearing excircle when connecting back closing cap on the pedestal rear end face, need not to set up corresponding lock washer, seal ring and fixes and seal the bearing, and it has greatly simplified the structure of whole bearing frame, has reduced manufacturing cost.

Description

Bearing seat for mounting rotary cultivator cutter shaft

Technical Field

The utility model relates to a rotary cultivator technical field specifically discloses a bearing frame is used in installation of rotary cultivator arbor.

Background

The rotary cultivator is an agricultural machine which is matched with a tractor to complete the operations of ploughing and harrowing. The rotary cultivator realizes the operation of ploughing and harrowing soil by driving the blades through the rotating cutter shaft in the working process, wherein two ends of the cutter shaft are arranged on the rack through bearing seats. Because the rotary cultivator has a severe operation environment, water and mud are easy to enter the traditional bearing seat, the abrasion of the bearing is accelerated, and the service life of the bearing seat is greatly shortened.

The utility model with the application number of 2018206078906 is an anti-winding integrated rotary tillage and ditching machine for paddy fields, which is applied before my department, and comprises a frame, a gearbox, an arc baffle, a floating double-ring sealing assembly, a cutter shaft assembly and a bidirectional ditching plough; the floating double-ring sealing component consists of a shaft head, a rubber ring, an alloy ring, a bearing seat, a deep groove ball bearing, a round nut stop washer, a round nut, a sealing washer and a sealing cover, wherein the rubber ring and the alloy ring are combined and used after being tightly sleeved, and two groups of rubber rings and two groups of alloy rings are combined into a symmetrical form and are tightly pressed and installed between the bearing seat and the shaft head. The utility model discloses a bearing frame that designs in the patent compares with current bearing frame, owing to adopt floating dicyclo seal assembly, can effectually avoid the arbor bearing frame to ooze mud phenomenon of intaking, guarantees the leakproofness, but structural design still has certain weak point. Firstly, when the deep groove ball bearing in the bearing seat is installed in the bearing seat, a round nut stop washer, a round nut and a sealing washer are required to be matched to tightly press and fix the deep groove ball bearing, so that the whole bearing seat has excessive parts and is high in manufacturing cost; secondly, the front end opening of the bearing seat is sealed through the shaft head, the shaft head is not welded at the end part of the cutter shaft, but is connected with the cutter shaft through connecting pieces such as screws, and the torque borne by the cutter shaft is large in the running process of the rotary cultivator, so that the connection part of the shaft head and the cutter shaft is easy to fall off. Consequently, to the not enough of traditional bearing frame easy into water, ooze mud and above-mentioned bearing frame, designed a can effectively solve above-mentioned technical problem's bearing frame for the installation of rotary tiller shaft.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a bearing frame is used in the installation of rotary tiller arbor to traditional bearing frame easy intaking, ooze mud and above-mentioned bearing frame provide not enough in the background art.

The utility model discloses a realize through following technical scheme:

the utility model provides a bearing frame is used in installation of rotary cultivator arbor, includes pedestal, front bezel cover, back closing cap and bearing, the front bezel cover is connected with the front end sealing of pedestal, all be provided with the oil blanket subassembly in pedestal and the front bezel cover, offer the round hole that is used for passing the arbor spindle nose on the front bezel cover, and be provided with the felt circle on the inner wall of round hole, the bearing sets up in the mounting groove of pedestal rear end, back closing cap inner is provided with and stretches into in the mounting groove and supports tight fixed clamping ring with the bearing inner race, can dismantle through the connecting piece between back closing cap and the pedestal rear end face and be connected.

As a specific configuration of the above scheme, the front end of the seat body is set to be stepped shaft shape, the front seat cover is provided with an annular seal groove, and the front end of the seat body extends into the annular seal groove to realize sealing connection.

According to the specific arrangement of the scheme, a front seat cover clamping groove and a first oil seal ring clamping groove are formed in the front end of the seat body, a second oil seal ring clamping groove is formed in the rear end of the front seat cover, the front seat cover extends into the front seat cover clamping groove, the first oil seal ring clamping groove and the second oil seal ring clamping groove are symmetrically arranged, and the two oil seal assemblies are respectively arranged in the first oil seal ring clamping groove and the second oil seal ring clamping groove.

As the specific arrangement of the scheme, the oil seal assembly comprises an oil seal ring and an oil seal O-shaped ring, the inner diameter of the oil seal ring is the same as the diameter of the shaft head of the cutter shaft, and the outer surface of the oil seal ring is an arc-shaped inclined plane with a high height.

In the specific arrangement of the above scheme, the connecting pieces are screws, the screws are uniformly distributed on the outer circumferential edge of the rear sealing cover, and threaded holes matched with the screws are formed in the rear end face of the seat body.

As a further arrangement of the scheme, the rear sealing cover is provided with an oil injection nozzle, and the inner end face of the pressing ring is provided with a rubber sealing ring which is pressed on the excircle of the bearing.

Has the beneficial effects that:

1) The utility model discloses a bearing frame directly has the clamping ring in the inner extension of back closing cap, when connecting back closing cap on the pedestal rear end face, its clamping ring stretches into the mounting groove and supports the bearing excircle to press the fastening, need not to set up corresponding lock washer, seal washer comes to fix and seal the bearing, its structure that has greatly simplified whole bearing frame, and manufacturing cost is reduced, and the rubber seal circle of its setting can also directly seal the junction of back closing cap and mounting groove, prevent that the condition of oil leak from taking place.

2) The utility model discloses the arbor spindle nose among the prior art has been replaced with the front bezel lid, its spindle nose is direct and arbor looks welded, stretch into the bearing frame through the round hole in the front bezel lid and be connected with the bearing, thereby make whole arbor to bear to turn round the ability reinforce, the felt circle that sets up in the front bezel lid can prevent the dust moreover, impurity such as earth enters into the pedestal through the clearance between arbor spindle nose and the round hole inner wall, the steady operation of whole bearing frame has effectively been guaranteed, the life of whole bearing frame has greatly been improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of a front view internal plane structure of the present invention;

FIG. 2 is a plan view of the middle seat, the front seat cover and the rear cover of the present invention;

fig. 3 is a schematic view of the three-dimensional structure of the first oil seal assembly and the second oil seal assembly of the present invention.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort shall fall within the protection scope of the present application.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail with reference to the following examples with reference to the accompanying drawings 1 to 3.

Example 1

Embodiment 1 discloses a bearing frame of preventing into water, preventing seepage mud, this bearing frame is used for installing the cutter shaft on the rotary cultivator. Referring to fig. 1 and 2, the main structural member of the bearing seat includes a seat body 1, a front seat cover 2, a rear cover 3, and a bearing 4.

The front end of the base body 1 is designed into a stepped shaft shape during design, a front base cover clamping groove 101 and a first oil seal ring clamping groove 102 are arranged in the front end face of the base body 1 from outside to inside, a bearing mounting groove 103 is arranged on the rear end face of the base body 1, and a through hole capable of penetrating through the cutter shaft head 5 is formed between the bearing mounting groove 103 and the first oil seal ring clamping groove 102.

Offer the round hole that is used for passing arbor spindle nose 5 in the centre of a circle department of front bezel 2, because the arbor spindle nose in this embodiment is the grafting complex with the round hole on the front bezel 2, consequently must still be provided with felt 203 on the inner wall of round hole, this felt circle 203 can prevent impurity such as dust, earth from entering into in the pedestal 1 through the clearance between arbor spindle nose and the round hole inner wall. Seted up annular seal groove 201 on the terminal surface that preceding

seat lid

2 and 1 front end of pedestal match for the 1 front end of pedestal can stretch into annular seal groove 201 and seal up with both junctions. Meanwhile, a second oil seal ring clamping groove 202 is formed in the front seat cover 2 of the inner ring of the annular sealing groove 201, and the second oil seal ring clamping groove 202 and the round hole are coaxially communicated.

A first oil seal assembly 6 is arranged in the first oil seal ring clamping groove 102, and a second oil seal assembly 7 is arranged in the second oil seal ring clamping groove 202, wherein the first oil seal assembly 6 and the second oil seal assembly 7 are symmetrically arranged. Referring to fig. 3, each of the first oil seal assembly 6 and the second oil seal assembly 7 includes an oil seal ring 601, and the inner diameter of the oil seal ring 601 is the same as the diameter of the arbor shaft head 5, so that the arbor shaft head 5 can be attached to and pass through the oil seal ring 601. The outer surface of the oil seal ring 601 is an arc-shaped inclined plane with a high height and a low height, an oil seal O-shaped ring 602 is sleeved on the outer surface of the oil seal ring 601, the O-shaped ring 602 can be hermetically attached to the outer surface of the oil seal ring 601 by pushing the oil seal O-shaped ring 602, the outer surface of the oil seal O-shaped ring 602 is abutted to the inner wall of the oil seal ring clamping groove, and therefore the sealing effect is achieved.

The bearing 4 is arranged close to the inner end of the bearing installation groove 103, and the end part of the arbor shaft head 5 extends into the inner ring of the bearing 4 for connection. Evenly be provided with a plurality of connecting screw 301 in the excircle limit department of back closing cap 3, also seted up simultaneously on the rear end face of pedestal 1 with every connecting screw 301 assorted screw hole, can realize the detachable connection between back closing cap 3 and the pedestal 1 through twisting connecting screw 301 in the screw hole to be provided with oil filler point 304 on back closing cap 3, can pour into lubricating oil into to bearing mounting groove 103 through oil filler point 304.

Meanwhile, the inner end of the rear cover 3 in the embodiment also extends to form a pressing ring 302 extending into the bearing mounting groove 103, the outer diameter of the pressing ring 302 is arranged to be the same as the diameter of the bearing mounting groove 103, and the pressing ring 302 extends into the bearing mounting groove 103 to press and fix the outer ring of the bearing 4 in the process of connecting the rear cover 3 and the seat body 1 without arranging additional gaskets and other components.

Finally, in order to prevent the oil leakage at the joint between the rear cover 3 and the base 1, a rubber sealing ring 303 is further arranged on the inner end surface of the pressing ring 302, and in the process that the pressing ring 302 abuts against the outer ring of the bearing 4, the abutting part has good sealing performance due to the existence of the rubber sealing ring 303, so that the oil leakage at the joint between the rear cover 3 and the base 1 can be prevented in the operation process of the rotary cultivator.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a bearing frame is used in installation of rotary cultivator arbor, includes pedestal, front bezel cover, back closing cap and bearing, the front end sealing connection of front bezel cover and pedestal, all be provided with the oil blanket subassembly in pedestal and the front bezel cover, its characterized in that, offer the round hole that is used for passing the arbor spindle nose on the front bezel cover, and be provided with the felt circle on the inner wall of round hole, the bearing sets up in the mounting groove of pedestal rear end, back closing cap the inner is provided with and stretches into in the mounting groove with bearing inner race support tight fixed clamping ring, can dismantle through the connecting piece between back closing cap and the pedestal rear end face and be connected.

2. The bearing seat for mounting the rotary tiller shaft according to claim 1, wherein the front end of the seat body is provided in a stepped shaft shape, the front seat cover is provided with an annular sealing groove, and the front end of the seat body extends into the annular sealing groove to realize sealing connection.

3. The bearing seat for mounting the rotary tiller shaft according to claim 2, wherein a front seat cover clamping groove and a first oil seal ring clamping groove are formed in the front end of the seat body, a second oil seal ring clamping groove is formed in the rear end of the front seat cover, the front seat cover extends into the front seat cover clamping groove, the first oil seal ring clamping groove and the second oil seal ring clamping groove are symmetrically arranged, and the two oil seal assemblies are respectively arranged in the first oil seal ring clamping groove and the second oil seal ring clamping groove.

4. The bearing seat for mounting the cutter shaft of the rotary cultivator according to claim 3, wherein the oil seal assembly comprises an oil seal ring and an oil seal O-shaped ring, the inner diameter of the oil seal ring is the same as the diameter of the head of the cutter shaft, and the outer surface of the oil seal ring is an arc-shaped inclined plane with a high height and a low height.

5. The bearing seat for mounting the rotary tiller shaft according to claim 1, wherein the connecting member is a screw, the screws are evenly distributed on the outer circumferential edge of the rear cover, and a threaded hole matched with the screw is formed in the rear end surface of the seat body.

6. The bearing seat for installing the rotary tiller cutter shaft according to claim 5, wherein an oil filling nozzle is arranged on the rear sealing cover, and a rubber sealing ring which is pressed on an outer circle of the bearing is arranged on an inner end face of the pressing ring.