Novel carrier roller for turning device steering drum of belt conveyor
阅读说明:本技术 一种带式输送机转弯装置转向滚筒使用的新型托辊 (Novel carrier roller for turning device steering drum of belt conveyor ) 是由 段运雄 袁海鹏 符阳 石晟 朱立平 宋兴元 于 2020-07-29 设计创作,主要内容包括:本发明公开了一种带式输送机转弯装置转向滚筒使用的新型托辊,其包括壳体,轴和位于壳体两端的轴承配置。轴承配置是采用双支点各单向固定,其是由圆螺母,止动垫圈,密封外盖,外密封圈,内密封圈,轴承,内挡圈组成;轴承外圈依靠内挡圈轴向定位;轴承内圈与外密封圈接触;外密封圈被密封外盖顶住,再通过圆螺母用止动垫圈与轴进行配合锁紧。本方案中轴承采用的是圆锥滚子轴承,其可以同时承受径向和轴向载荷,增强了承载能力;其次由密封外盖,外密封圈,内密封圈构成的密封形式为迷宫形式,可以起到防水防尘的作用,有效保护轴承。(The invention discloses a novel carrier roller for a steering roller of a turning device of a belt conveyor. The bearing is configured by adopting double-fulcrum unidirectional fixation and consists of a round nut, a stop washer, a sealing outer cover, an outer sealing ring, an inner sealing ring, a bearing and an inner check ring; the outer ring of the bearing is axially positioned by the inner retainer ring; the bearing inner ring is contacted with the outer sealing ring; the outer sealing ring is propped against the sealing outer cover and is matched and locked with the shaft through a stop washer for a round nut. The bearing in the scheme adopts the tapered roller bearing, and can bear radial and axial loads at the same time, so that the bearing capacity is enhanced; and the sealing form formed by the sealing outer cover, the outer sealing ring and the inner sealing ring is a labyrinth form, so that the waterproof and dustproof effects can be achieved, and the bearing is effectively protected.)
1. A novel carrier roller for a steering roller of a turning device of a belt conveyor comprises a shell, a shaft and bearing arrangements positioned at two ends of the shell; the bearing is characterized in that the bearing is configured by adopting double-fulcrum unidirectional fixation and consists of a round nut, a stop washer, a sealing outer cover, an outer sealing ring, an inner sealing ring, a bearing and an inner check ring; the bearing is a tapered roller bearing, and one end with a large angle faces to the port of the shell; the bearing outer ring is axially positioned by an inner retainer ring; the bearing inner ring is contacted with the outer sealing ring; the outer sealing ring is propped against the sealing outer cover and is matched and locked with the shaft through the round nut by using a stop washer; the round nut can adjust the axial clearance of the bearing through the matching of the threads and the shaft.
2. The new idler roller for turning device turning drum of belt conveyor according to claim 1, characterized in that there are several sealing grooves between said inner sealing ring and said outer sealing ring, there are sealing grooves between said inner sealing ring and outer sealing cover, all the sealing grooves are matched to form labyrinth type sealing form, there is no contact sealing between the inner and outer sealing elements.
3. The novel idler for a turning device steering drum of a belt conveyor as claimed in claim 1, wherein an oil storage cavity is provided between the inner retainer ring, the seal ring and the bearing for injecting grease for lubrication.
4. The novel carrier roller for the belt conveyor turning device turning drum according to claim 1, wherein a plurality of U-shaped grooves are uniformly formed at the contact position of one end of the outer sealing ring and the bearing inner ring for grease injection and lubrication.
5. The idler for a belt conveyor turning device turning drum according to claim 1, wherein said housing is of a drum construction; the size of the outer circle of the carrier roller shell is integrally processed and formed by nylon materials according to the type of the roller, so that an enveloping circle formed by the small carrier roller is just the outer circle of the steering roller.
6. The new idler for a belt conveyor turning device turning drum according to claim 1, wherein the axle passes through the idler center with the ends of the axle located outside the idler housing.
Technical Field
The invention relates to the technical field of machine manufacturing, in particular to a novel carrier roller for a steering roller of a turning device of a belt conveyor.
Background
At present, in order to meet the requirement of large-angle turning transportation, a common belt conveyor currently used in China mostly adopts a mode of tower connection of two belt conveyors for transshipment, and the mode has large equipment investment and high operation cost. The turning technology of the horizontal turning belt conveyor has certain requirements on the turning radius, and is not suitable for turning transportation of space turning angles, and the minimum turning radius which can be realized by the current domestic horizontal turning technology is 250 m. The turning transportation aiming at small radius and large angle can be realized by using a turning device without adding power equipment, the operation is convenient and efficient, a core component of the turning roller is usually uniformly arranged on the circumferential surface of the turning roller by adopting a plurality of small carrier rollers, and the arrangement forms of the small carrier rollers are two types:
one is that the axes of the small carrier rollers and the axes of the roller are arranged at a specific included angle, and the size of the included angle is half of the turning angle, as shown in figure 1; the other is that the axes of the small supporting rollers 2 are arranged perpendicular to the axis of the roller 1, as shown in figure 2. Especially, the axes of the
The traditional carrier roller is mainly supported by a deep groove ball bearing and can only bear radial load, the axial positioning adopts the snap spring for positioning, the axial clearance cannot be adjusted, and the reliability and the service life of the small carrier roller cannot be ensured under the environment of heavy load, axial stress and impact. With the trend of belt conveyors toward large capacity, long distance and large bandwidth, the small carrier rollers of the traditional structure are difficult to meet the operation requirements.
It follows that how the load carrying capacity of an idler can be enhanced is a problem to be solved in the art.
Disclosure of Invention
Aiming at the problem that the prior art is difficult to meet the heavy load, the invention aims to provide a novel carrier roller for a steering roller of a belt conveyor turning device. The problems in the prior art are well solved.
In order to achieve the purpose, the novel carrier roller used by the steering roller of the turning device of the belt conveyor comprises a shell, a shaft and bearing arrangements positioned at two ends of the shell; the bearing is configured by adopting two fulcrums and one-way fixation, and consists of a round nut, a stop washer, a sealing outer cover, an outer sealing ring, an inner sealing ring, a bearing and an inner check ring; the bearing is a tapered roller bearing, and one end with a large angle faces to the port of the shell; the bearing outer ring is axially positioned by an inner retainer ring; the bearing inner ring is contacted with the outer sealing ring; the outer sealing ring is propped against the sealing outer cover and is matched and locked with the shaft through the round nut by using a stop washer; the round nut can adjust the axial clearance of the bearing through the matching of the threads and the shaft.
Furthermore, a plurality of sealing grooves are formed between the inner sealing ring and the outer sealing ring, a sealing groove is formed between the inner sealing ring and the outer sealing cover, all the sealing grooves are matched to form a labyrinth sealing mode, and the inner sealing ring and the outer sealing ring are sealed in a non-contact mode.
Furthermore, an oil storage cavity is arranged between the inner retainer ring, the sealing ring and the bearing and used for injecting grease for lubrication.
Furthermore, a plurality of U-shaped grooves are uniformly distributed at the contact position of one end of the outer sealing ring and the bearing inner ring and used for injecting grease for lubrication.
Further, the shell is of a drum-shaped structure; the size of the outer circle of the carrier roller shell is integrally processed and formed by nylon materials according to the type of the roller, so that an enveloping circle formed by the small carrier roller is just the outer circle of the steering roller.
Further, the shaft passes through the center of the carrier roller, and two ends of the shaft are positioned outside the carrier roller shell.
The novel carrier roller for the steering drum of the belt conveyor turning device is optimized in structure of the conventional carrier roller, and the bearing capacity of the carrier roller is improved well by adopting the tapered roller bearing.
Drawings
The invention is further described below in conjunction with the appended drawings and the detailed description.
FIG. 1 is a schematic view of an angle between the axis of a conventional idler roller and the axis of a roller;
FIG. 2 is a schematic view of a conventional arrangement structure in which the axis of a carrier roller is perpendicular to the axis of a roller;
fig. 3 is a structural sectional view of the novel carrier roller;
fig. 4 is a structural schematic view of a U-shaped groove of the outer sealing ring of the novel carrier roller;
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained below by combining the specific drawings.
Referring to fig. 3, it shows a schematic structural diagram of the carrier roller of the present invention; as can be seen from the figure, the novel carrier roller is composed of a
Specifically, the
According to the model of the steering roller, the size of the outer circle surface of the
The
The
The outer ring of the
The outer ring of the
Further, the
The structure can bear larger axial load, the axial clearance of the tapered roller bearing can be conveniently adjusted according to actual conditions, and the service life of the
The interior of the idler is provided with 2 sets of bearing arrangements which are respectively positioned at two ends of the interior of the
Secondly, the sealing parts at the two ends of the carrier roller adopt a labyrinth sealing mode, 3 sealing grooves are formed between the
In addition, the
According to the novel carrier roller formed by the scheme, when the novel carrier roller is applied specifically, the belt conveyor conveys the carrier roller through the rotation of the plurality of carrier rollers, and the bearings in the carrier roller adopt tapered roller bearings, so that the novel carrier roller can bear radial load and axial load simultaneously, has stronger bearing capacity and is suitable for heavy load and working conditions with axial load; the inner sealing structure of the secondary carrier roller adopts multilayer labyrinth sealing, the inner sealing part and the outer sealing part are sealed in a non-contact manner, the rotating resistance is smaller, the sealing effect is better, and the service life is longer.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
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