Novel anti-shearing bending-moment-free and torque-free stop wheel device
A torque-free and retaining wheel technology, which is applied in the field of new shear-resistant, non-bending moment and torque-free retaining wheel devices, can solve the problem of no protective measures for the main shaft and the base, unfavorable on-site maintenance, replacement of parts, and inability to eliminate or reduce various stresses and other problems, to achieve the effect of increasing stability and disassembly safety, compact structure and small bending moment
Pending Publication Date: 2019-04-16
DORIGHT
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Problems solved by technology
[0006] 1. After analysis, the broken shaft is mainly concentrated at the contact section between the main shaft of the retaining wheel and the base. This section is simultaneously subjected to the shear force and bending moment generated by the rolling ring on the retaining wheel, and a certain torsional moment is generated between the fixed base. The structure It cannot eliminate or reduce various stresses acting on the main shaft of the retaining wheel. The service life of the main shaft of the retaining wheel is short and needs to be replaced frequently. It is troublesome to disassemble and assemble on site.
[0007] 2. Any protective facilities on site cannot be maintained, and the working conditions on site are relatively harsh. There is no protective measure for the main shaft and the base, and dust and rain will soon rust them together. Once one of the parts is damaged, the matching parts can only be used together. scrapped
[0008] 3. The structure is unreasonable, the overall device is large and small, the center of gravity is high, and unstable. The stress points are concentrated on the upper part. The four fixing bolts under the base bear the effects of tension, compression, bending and shearing force, and deform in a short time. and break
[0009] 4. Too long main shaft not only increases the height of the device, but also increases the effect of bending stress
[0010] 5. The double-row tapered roller bearing bears the action of radial force and axial force at the same time, and the service life is short
[0012] 7. It is difficult to assemble and disassemble. Double-row tapered roller bearings and their glands, seals and other parts are assembled from the bottom of the retaining wheel to the top, which is not conducive to assembly and disassembly, especially not conducive to on-site maintenance and replacement of parts
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[0045] A new type of anti-shear, non-bending moment and non-torque retaining wheel device includes: spherical roller bearing 1, pressure plate 2, bearing cover 3, retaining wheel 4, sealing ring 5, main shaft 6, base 7, and thrust ball bearing 8.
[0046] The retaining wheel 4 forms a shear-resistant and non-bending moment structure through the spherical roller bearing 1 and the main shaft 6; the retaining wheel 4 mounted on the thrust ball bearing 8 and the main shaft 6 form a pressure-resistant non-torque structure; the retaining wheel 4 is installed on the main shaft 6 The thrust ball bearing 8 and the base 7 form a frictionless structure on the boss; the sealing ring 5 used between the retaining wheel 4 and the base 7 forms a sealed protection structure together;
[0047] The retaining wheel device effectively solves the problems of short life, difficult on-site maintenance and repair, and long cycle of replacement of the spindle under the action of shear, bending moment, torque...
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The invention discloses a novel anti-shearing bending-moment-free and torque-free stop wheel device which is a novel stop wheel device, wherein the novel anti-shearing bending-moment-free and torque-free stop wheel device is high in shear force resistance and free of bending moment and torque generation, and friction resistance between the novel anti-shearing bending-moment-free and torque-free stop wheel device and a drying machine roll ring is small. The device comprises a self-aligning roller bearing (1), a pressing plate (2), a bearing cover (3), a stop wheel (4), a seal ring (5), a main shaft (6), a base (7) and a thrust ball bearing (8). The thrust ball bearing (8), the stop wheel (4) and the main shaft (6) are installed and matched together to form a main shaft torque-acting-free structure. The self-aligning roller bearing (1), the main shaft (6) and the stop wheel (4) are installed and matched together to form a jamming-free relative flexible rotation structure. The embedded seal ring (5) is adopted between the stop wheel (4) and the base (7) to form seal protection on the device. The main shaft (6) and the base (7) are installed, inserted and positioned, and dismounting and mounting are convenient. Due to the enlarged base (7), stability of the device is improved. The device is similarly applicable to other similar work conditions.
Description
Technical field [0001] The invention relates to a large-scale horizontal rotating hub dryer equipment. In order to ensure that the axial displacement of the rotating hub of the dryer is controlled within a set range during the operation of the dryer, and to prevent the rolling ring supporting the rotating hub from displacing too much and leaving the supporting wheel, it adopts The stop wheel device restricts the rotating hub within the set displacement range. The stop wheel device is a new type with strong shear resistance and no bending moment and torque, ensuring a small frictional resistance with the dryer ring Shear resistance without bending moment and torque blocking wheel device. Background technique [0002] For many years, it has been widely used in the traditional drying equipment of metallurgy, building materials, chemical industry, coal washing, fertilizer, ore, clay, kaolin and other fields-horizontal rotary hub dryer, mainly used for drying powder or granular with c...
Claims
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IPC IPC(8): F26B11/02F26B25/16
CPCF26B11/022F26B25/16
Inventor 吕宏霞吕殿波
Owner DORIGHT