CN202203279U

CN202203279U - Precision corner bearing

Info

Publication number: CN202203279U
Application number: CN201120316257XU
Authority: CN
Inventors: 孙小丛; 李文喜; 王朝襄
Original assignee: XIANGYANG ZHENBEN TRANSMISSION EQUIPMENT CO Ltd
Current assignee: XIANGYANG ZHENBEN TRANSMISSION EQUIPMENT CO Ltd
Priority date: 2011-08-28
Filing date: 2011-08-28
Publication date: 2012-04-25
Anticipated expiration: 2021-08-28

Abstract

A precision corner bearing is used for transmission of a transmission band of a continuous press machine. A bearing support is connected with a machine frame, a U-shaped groove is arranged on the lower portion, an outer sleeve is installed inside the U-shaped groove, and a step hole used for installing a the bearing is arranged inside the outer sleeve. A through hole is arranged in the bearing support and used for installing a shaft. The bearing is installed in the outer sleeve, a shaft washer is installed between the bearing and the bearing support, sealing rings are arranged between the bearing and the bearing support and on the outer circle of the shaft washer, the bearing is a combination of a needle roller bearing and thrust ball bearings, the needle roller bearing is installed between the thrust ball bearings, shaft washers are arranged between the thrust ball bearings and the bearing support, and the needle roller bearing is not provided with an inner ring. The outer sleeve, the shaft and the shaft washers are made of high-quality alloy tools. The precision corner bearing is good in abrasion resistance, high in bearing capacity, advanced in processing technology and good in sealing performance, thereby being capable of ensuring rotation accuracy and rotation flexibility of the bearing and effectively improving service life of the bearing.

Description

The precision corner bearing

Technical field

The utility model relates to bearing manufacturing technology field, is a kind of precision corner bearing that is used for the continuous press transport tape of artificial board product line specifically.

Background technique

The man-made board continuous press is that nearly 20 years wood based panel manufacturing machineries' revolutionary character breaks through, and its main feature is the production process continization, output is big, efficient is high.Eliminate the discordant interruption in production line of single or multiple lift intermittent type hotpress, overcome the deficiency that pressed sheet is in uneven thickness, raw materials consumption is big, energy consumption is big that the latter exists.Continuous press has overcome hot platen and has opened interruption closed and that dockboard causes, but the speed of production free adjustment, the throughput of hot platen unit area is batchwise multi-layer hotpress more than 2 times, peak annual output reached 70 ten thousand steres (oriented wood chipboard).The corner bearing is the transport tape steering bearing that is used for continuous press, because production on-site environment is abominable, dust is many, directly contacts with transport tape, and easy frictional heating, so bearing must can bear axial force and radial force the while, has high wear resistance, high leak tightness.At present, external corner bearing mainly is the subsidiary corner bearing of Dieffenbacher, hot northern Er Kangpu equipment, and is domestic mainly by productions such as Si Mate machinery plants, has following defective:

1, the material of outer ring is not wear-resisting, and hardness is low, and is easy to wear when rubbing with transport tape;

2, positioning shaft is not wear-resisting, because the diameter of axle is less, and hardness is low, with the heavy wear of bearing contacting point, causes bearing stuck;

3, bear axial force and the radial force ability is little, inside is two row deep groove ball bearings, and radially bearing capacity is poor for it; When conveyer belt produces the machining accuracy error of sideslip or frame when big, can produce certain axial force, and the ball bearing axial carrying is very little; In case overburden, ball bearing will be burnt damage to death;

4, the Location accuracy of bearing support is poor, influences the installation precision of corner bearing, thereby influences the life-span of bearing;

5, external import price is high, be three times of homemade price, but the life-span is suitable.

Summary of the invention

For overcoming the deficiency of existing technology, the goal of the invention of the utility model is to provide a kind of precision corner bearing, improves precision, the bearing capacity of bearing with realization, and reaches raising wear resistance purpose.

For realizing above-mentioned purpose, the bearing support of the utility model is connected with frame, and U-groove bevel is arranged at the bottom, and overcoat is housed in the U-groove bevel, and overcoat inside is useful on bearings mounted step hole; Through hole is arranged, built-in shaft in the bearing support; Bearing is housed in the overcoat; Between bearing and the bearing support blowout patche is housed; Between bearing and the bearing support, the cylindrical of blowout patche has seal ring, it is characterized in that: bearing is the assemblying body of needle bearing and thrust ball bearing, and needle bearing is contained between the thrust ball bearing; Between thrust ball bearing and the bearing support blowout patche is housed, needle bearing does not have inner ring; Overcoat, axle and blowout patche adopt high duty alloy tool steel to make.

The utility model compared with prior art has the following advantages:

1, wear resistance is good: the overcoat of bearing adopts high duty alloy tool steel with axle, can improve the hardness of overcoat, thereby improve its surperficial wear resistance;

2, bearing capacity is good: the inner needle bearing of the no inner ring of a cover that adopts of bearing comes bearing radial force, and two ends adopt thrust ball bearing to bear axial force;

3, processing technology is advanced: overcoat and the advanced processing process of axle employing bearing, thereby the running accuracy of assurance bearing, and bearing support adopts rationally advanced processing process, guarantees the precision of bearing support localization part;

3, good seal performance: bearing adopts high performance sealing, and the blowout patche that cooperates with it simultaneously adopts reasonable fit tolerance, can guarantee the bearing seal performance, has guaranteed the flexibility of revolution of bearing again;

4, the life-span is long: adopt the compound mode of needle bearing and thrust ball bearing, the working life that can effectively improve bearing.

Description of drawings

Fig. 1 is the structure diagram of the utility model.

Embodiment

Shown in accompanying drawing, bearing support 1 is a cuboid, and a locating slot is arranged at top, and the hole 9 of mounting screw is arranged simultaneously, is used for positioning shaft bearing 1, and is connected with frame; Two U-groove bevels are arranged at the bottom, and overcoat 2 is housed in each U-groove bevel, and overcoat 2 is cylindrical bodys, and overcoat 2 inside are useful on bearings mounted step hole, and overcoat 2 adopts high duty alloy tool steel to make; One through hole 10 is arranged in the bearing support 1, in adorn one be used for fixing bearing axle 3, axle 3 adopts high duty alloy tool steel to make; Bearing is the assemblying body of needle bearing 4 and thrust ball bearing 5; Needle bearing 4 is contained between the thrust ball bearing 5, between thrust ball bearing 5 and the bearing support 1 blowout patche 6 is housed, needle bearing 4 no inner rings; The radially bearing capacity of needle bearing 4 is higher than the ball bearing of same size; When overcoat 2 received axial force, axial force passed to thrust ball bearing 5 through overcoat 2 steps, and thrust ball bearing 5 passes to blowout patche 6, bearing support 1 successively with the axial force decomposition; Between thrust ball bearing 5 and the bearing support 1, the cylindrical of blowout patche 6 has seal ring 7, it is inner that seal ring 7 can prevent that outside foreign material from getting into bearing, reasonably cooperates with blowout patche 6 simultaneously, reaches and rotate purpose flexibly, the hole is used for axial restraint seal ring 7 with back-up ring 8.

Claims

1. precision corner bearing, bearing support (1) is connected with frame, and U-groove bevel is arranged at the bottom, and overcoat (2) is housed in the U-groove bevel, and overcoat (2) inside is useful on bearings mounted step hole; Through hole (10) is arranged, built-in shaft (3) in the bearing support (1); Overcoat is equipped with bearing in (2); Blowout patche (6) is housed between bearing and the bearing support (1); Between bearing and the bearing support (1), the cylindrical of blowout patche (6) has seal ring (7), it is characterized in that: bearing is a needle bearing (4) and the assemblying body of thrust ball bearing (5), and needle bearing (4) is contained between the thrust ball bearing (5); Between thrust ball bearing (5) and the bearing support (1) blowout patche (6) is housed, the no inner ring of needle bearing (4).

2. precision corner bearing according to claim 1 is characterized in that: overcoat (2), axle (3) and blowout patche (6) adopt high duty alloy tool steel to make.