CN216951327U

CN216951327U - Sealed bearing seat

Info

Publication number: CN216951327U
Application number: CN202123403495.7U
Authority: CN
Inventors: 肖应贤
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-07-12
Anticipated expiration: 2031-12-31

Abstract

The utility model discloses a sealing bearing seat which is not easy to mutually wear with a cutter shaft, has good sealing effect and is convenient to maintain, and comprises a bearing seat body sleeved outside the cutter shaft, wherein one side end surface of the bearing seat body is provided with an annular clamping groove; the utility model adopts the check ring to combine with the dust cover to form double-layer sealing, thereby effectively preventing grass mud from entering the bearing seat; the circular ring type dust cover formed by two semicircular ring components or in threaded connection is convenient to disassemble, assemble and maintain; the sealing ring between the check ring or/and the dustproof cover and the cutter shaft, and even the annular clamping groove of the bearing seat body are trapezoidal grooves with the bottoms larger than the heads, so that elastic sealing is formed, the check ring and the annular clamping groove are prevented from being worn even under the condition that the central line of the cutter shaft deflects due to environmental factors, and the cutter shaft is effectively protected from bending deformation; the structure is compact, the installation and the maintenance are convenient, the sealing performance is good, and the failure rate is low.

Description

Sealed bearing seat

Technical Field

The utility model relates to an agricultural mechanical accessory, in particular to an accessory suitable for a rotary cultivator, and particularly relates to a sealing bearing seat.

Background

The rotary cultivator is a cultivator which is matched with a tractor to complete the operations of ploughing and harrowing. The soil breaking machine has the characteristics of strong soil breaking capacity, flat ground surface after ploughing and the like, so that the soil breaking machine is widely applied; meanwhile, the stubble buried below the ground surface can be cut up, the operation of the seeder is convenient, and a good seedbed is provided for later-stage seeding. The rotary cultivator has the functions of breaking a plough bottom layer, restoring a soil plough layer structure, improving the soil water storage and preservation capacity of soil moisture, eliminating part of weeds, reducing plant diseases and insect pests, leveling the ground surface, improving the standard of agricultural mechanized operation and the like.

The cutter shaft assembly of the rotary cultivator is arranged on the frame through the bearing seat, under the condition that the working environment is severe, soil and weeds are easy to be wound and are extruded in a steering mode to enter the bearing seat, and therefore oil seals, bearings and cutter shafts are abraded, and the working stability of the rotary cultivator is affected. Especially when the paddy field is cultivated, the serious person even winds the bearing to be dead, so that the heavy person cannot work. And the oil seal is abraded and damaged, oil leakage is caused, and soil pollution is caused.

At present, the spare parts (bearing covers) on the market for the bearing seat with the dustproof function are only used for protecting the end part of the rotary tiller shaft, namely the end part outside the bearing seat, and soil and weeds can enter from the joint of the inner side of the bearing seat and the shaft. The sealing effect becomes a problem because the cutter shaft needs to rotate. Although the rotary cultivator adopts the limit wedging structure additionally arranged on the cutter shaft and provided with the bearing seat to play a role of shielding so as to achieve the purpose of preventing mud and grass from entering the bearing seat, in actual operation, the wedging part is still relatively exposed substantially, and mud and debris are extremely blocked, so that the cutter shaft is unsmooth in rotation. On one hand, the wedging part is blocked with impurities to cause unsmooth rotation of the cutter shaft, so that the center line of the cutter shaft deflects when the cutter shaft rotates, even the occlusion part of the limiting part of the bearing seat is seriously abraded, and the limiting effect is lost; on the other hand, the center line of the cutter shaft is easy to deflect due to the severe farming environment, so that the cutter shaft is bent and deformed and is mutually abraded with the bearing seat. Under the condition, the cutter shaft needs to be frequently disassembled to be corrected, even the bearing seat needs to be replaced, and the maintenance is frequent and tedious. And some limit structures are integral with the cutter shaft, so that the whole cutter shaft needs to be replaced once the limit structures of the cutter shaft are damaged, and the maintenance cost is high.

Disclosure of Invention

The utility model aims to provide a sealing bearing seat which is not easy to wear with a cutter shaft, has a good sealing effect and is convenient to maintain.

The utility model adopts the following technical scheme to realize the aim, and discloses a sealed bearing seat which comprises a bearing seat body sleeved outside a cutter shaft, wherein two ends of the cutter shaft are positioned in the bearing seat body, one side end surface of the bearing seat body towards the midpoint direction of the cutter shaft is provided with an annular clamping groove which is concentric with the cutter shaft, the cutter shaft is provided with a check ring which is embedded in the annular clamping groove, and the bearing seat body is connected with a dust cover which is positioned outside the check ring so as to prevent mud and grass from being wound into the annular clamping groove and further avoid the abrasion of a bearing and the deflection deformation of the cutter shaft.

In order to facilitate disassembly and assembly in the maintenance process, the dust cover comprises two semicircular ring assemblies, the joint part between the two semicircular ring assemblies is in stepped or mortise-tenon type contact, and the semicircular ring assemblies are fixedly connected to one side end face of the bearing seat body through bolts.

For further sealing, the check ring is fixedly connected with the cutter shaft into a whole through welding, and a sealing ring is arranged between the dustproof cover and the cutter shaft.

In order to facilitate maintenance and easy disassembly and assembly, the check ring is fixedly connected with the cutter shaft into a whole by welding, and the dustproof cover is annular; the dustproof cover is fixed on one side end face of the bearing seat body towards the midpoint direction of the cutter shaft through bolt connection, or the dustproof cover is in threaded connection with the periphery of one side end face of the bearing seat body.

In order to avoid the abrasion of the bearing seat caused by the retainer ring and the annular clamping groove due to the deflection of the cutter shaft, the retainer ring and the dustproof cover are annular and are sleeved outside the end part of the cutter shaft; the dustproof cover is in threaded connection with the periphery of the check ring; and sealing rings are arranged among the check ring, the dust cover and the cutter shaft.

In order to avoid the abrasion between the retainer ring and the annular clamping groove, the annular clamping groove of the bearing seat body is a trapezoidal groove with the bottom larger than the head.

By adopting the technical scheme, the utility model better realizes the purpose of the utility model, and adopts the check ring to combine with the dustproof cover to form double-layer sealing, thereby effectively preventing grass mud from entering the bearing seat; the circular ring type dust cover formed by two semicircular ring components or in threaded connection is convenient to disassemble, assemble and maintain; the sealing ring between the check ring or/and the dustproof cover and the cutter shaft, and even the annular clamping groove of the bearing seat body are trapezoidal grooves with the bottoms larger than the heads, so that elastic sealing is formed, the check ring and the annular clamping groove are prevented from being worn even under the condition that the central line of the cutter shaft deflects due to environmental factors, and the cutter shaft is effectively protected from bending deformation; the sealing device has the advantages of compact structure, convenience in installation and maintenance, good sealing performance, low failure rate and convenience in operation.

Drawings

FIG. 1 is a schematic structural view of embodiment 1 of the present invention;

FIG. 2 is a schematic structural view of embodiment 2 of the present invention;

FIG. 3 is a schematic configuration diagram of embodiment 3 of the present invention;

FIG. 4 is a schematic structural view of embodiment 4 of the present invention;

fig. 5 is a schematic structural diagram of embodiment 5 of the present invention.

In the figure: 1. the device comprises a bearing base body, 2 annular clamping grooves, 3 retaining rings, 4 sealing rings, 5 cutter shafts and 6 dust covers.

Detailed Description

The utility model is further explained below with reference to the drawings and examples.

Example 1:

as can be seen from fig. 1, a sealed bearing seat comprises a bearing seat body 1 sleeved outside a cutter shaft 5, two ends of the cutter shaft 5 are located in the bearing seat body 1, an annular clamping groove 2 having the same central line with the cutter shaft 5 is formed in one side end surface of the bearing seat body 1 in the direction of the midpoint of the cutter shaft 5, a retaining ring 3 embedded in the annular clamping groove 2 is arranged on the cutter shaft 5, and a dust cap 6 located outside the retaining ring 3 is connected to the bearing seat body 1 to prevent mud and grass from being wound into the annular clamping groove 2, so that bearing abrasion and off-axis deformation of the cutter shaft 5 are avoided.

In order to facilitate disassembly and assembly in the maintenance process, the dust cover 6 comprises two semicircular ring assemblies, the joint part between the two semicircular ring assemblies is in stepped or mortise-tenon type contact (in the embodiment, stepped contact), and the semicircular ring assemblies are respectively fixed on one side end face of the bearing seat body 1 through bolt connection.

For further sealing, the retainer ring 3 is fixedly connected with the cutter shaft 5 into a whole by welding, and a sealing ring 4 is arranged between the dustproof cover 6 and the cutter shaft 5.

Example 2:

as shown in fig. 2, in order to avoid the abrasion between the retainer ring 3 and the ring groove 2, the ring groove 2 of the bearing housing 1 is a trapezoidal groove with a bottom larger than a head.

The same as in example 1.

Example 3:

as shown in fig. 3, in the present invention, for convenience of maintenance and easy disassembly, the dust cap 6 is circular; the dust cap 6 is fixed to one side end surface of the bearing base 1 in the direction toward the midpoint of the cutter shaft 5 by a bolt, or the dust cap 6 is screwed to the outer periphery of one side end surface of the bearing base 1 (in this embodiment, the dust cap 6 is fixed to the bearing base 1 by a bolt).

The same as in example 1.

Example 4:

in the utility model, in order to facilitate maintenance and easy disassembly and assembly, the dustproof cover 6 is in a circular ring shape; the dust cap 6 is fixed to one side end surface of the bearing base 1 in the direction toward the midpoint of the cutter shaft 5 by a bolt, or the dust cap 6 is screwed to the outer periphery of one side end surface of the bearing base 1 (in this embodiment, the dust cap 6 is screwed to the outer periphery of one side end surface of the bearing base 1).

The same as in example 3.

Example 5:

in order to avoid abrasion of the bearing seat caused by the retainer ring 3 and the annular clamping groove 2 due to deflection of the cutter shaft 5, the retainer ring 3 and the dustproof cover 6 are annular and are sleeved outside the end part of the cutter shaft 5; the dustproof cover 6 is in threaded connection with the periphery of the retainer ring 3; and a sealing ring 4 is arranged between the check ring 3, the dust cover 6 and the cutter shaft 5.

The same as in example 3.

Claims

1. A sealed bearing seat comprises a bearing seat body sleeved outside a cutter shaft, and is characterized in that an annular clamping groove is formed in one side end face of the bearing seat body, the cutter shaft is provided with a check ring embedded in the annular clamping groove, and the bearing seat body is connected with a dust cover located on the outer side of the check ring.

2. The seal carrier as claimed in claim 1, wherein the dust cap comprises two semicircular ring members, and the joint between the two semicircular ring members is in stepped or mortise and tenon type contact.

3. The seal bearing housing according to claim 1 or 2, wherein a seal ring is disposed between the dust cap and the arbor.

4. The seal carrier of claim 1 wherein said dust cap is annular; the dust cover is fixed on one side end face of the bearing seat body through bolt connection, or the dust cover is in threaded connection with the periphery of one side end face of the bearing seat body.

5. The seal bearing housing according to claim 1 wherein said retainer ring and said dust cap are annular; the dustproof cover is in threaded connection with the periphery of the check ring; and sealing rings are arranged among the check ring, the dust cover and the cutter shaft.

6. The sealed bearing seat according to claim 1, 2, 4 or 5, wherein the annular groove of the bearing seat body is a trapezoidal groove with a bottom larger than a head.

7. A sealed bearing housing according to claim 3, wherein the annular groove of the bearing housing is a trapezoidal groove with a larger bottom than its beginning.