JPS5839814A - Sliding supporter - Google Patents

Abstract

PURPOSE:To heighten the heat resistance and load carrying capacity of a sliding supporter for a high-temperature machine such as a boiler or for a built body, by laminating a buffer tape on a metal hoop and winding them by plural turns to manufacture a vortical sliding member and by fitting the member between an upper and a lower shoes. CONSTITUTION:In a sliding supporter, an annular groove 2 is provided on the top of a lower shoe 1 secured on a lower structure and a sliding member 3 whose height is larger than the depth of the annular groove is fitted therein. To manufacture the sliding member 3, a buffer tape 3b made of fluorine resin or the like containing a solid lubricant is laminated on a metal hoop 3a made of stainless steel or the like and they are vortically wound. An upper shoe 4 secured on an upper structure is put in contact with the top 3' of the sliding member 3 fitted in the annular groove 2 and projecting from the top of the lower shoe 1, so that the upper and the lower shoes 4, 1 can slide relative to each other.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a sliding bearing that is used, for example, in high-temperature equipment such as boilers and structures in high-temperature atmospheres, and supports high loads.

Conventionally, as a typical example of a sliding support for a woodcutter, a recess (part of a cylinder) is provided on the upper surface of the lower shoe in order to absorb the deflection and distortion while supporting the load acting on the upper structure of the building. A compression ring is fitted to accommodate the annular rubber elastic body and prevent the rubber elastic body from protruding.Furthermore, a sliding plate is provided on the top surface of the rubber elastic body, and the sliding plate contacts the top surface of the rubber elastic body to prevent relative sliding. It consisted of an upper shoe with an upper sliding board.

Such conventional lt9 bearings are simple in structure, relatively compact, and 69. The angle absorption function (so-called 1-pin function 1) is effective, and it is a M-type bearing, but the rubber elastic body f: Since it is housed in a closed space, in terms of heat resistance, when used in a high temperature atmosphere, there is a significant load. Generally, the temperature is 150-180℃ and the load surface pressure is 20-30℃.
fi is the limit. On the other hand, the conditions desired in the sedentary market in recent years are 260 to 30 t1℃ and a load surface pressure of 30
There is a growing need for bearings that can withstand use at high temperatures and surface pressures of 0 to 3501 degrees Celsius.

The present invention was developed in view of the above-mentioned circumstances, and it is an object of the present invention to provide a sliding bearing that has higher heat resistance than conventional products and can withstand high loads.

Hereinafter, the invention will be explained in detail based on examples.

FIG. 1 shows a sectional view of an IW bearing according to the present invention. An annular groove 2 is formed on the upper surface of the lower shoe l fixed to the lower structure, and a sliding member 3 is fitted into this annular groove 2. In this case, the depth of the annular groove 2 is The thickness of the sliding member 3 is larger and the upper surface 31 of the sliding member 3 protrudes from the annular groove 2. And the top 1 of Qing 9 member 3
iral abuts on the upper shoe 4 fixed to the superstructure,
Relative sliding IIJf: It is configured to do so. Note that this sliding material 3 has a spiral structure in which a metal hoop 3a and a buffer tape 3b are overlapped and wound multiple times. In this case, the metal hoop 3a is preferably made of stainless steel, but various metal materials such as steel or aluminum may be selected depending on the purpose of specification. The buffer tape 3b is preferably made of a fluororesin filled with a solid lubricant, but may be selected from expanded graphite sheets, asbestos paper, or materials impregnated or coated with a solid lubricant. Sliding member 3f with such a structure: The beak bearing A having the structure shown in FIG. It was confirmed that it was a support.

Just related rf! The problem with the bearing A is that the angle absorbing function of absorbing the deflection, displacement, etc. between the upper structure and the lower structure is not very large. Therefore, when a large angle absorption function is required, it is preferable to adopt the structure of the sliding bearing B shown in FIG. 2. The sliding bearing B shown in Fig. 2 is
4111 is shown. The main structure of this sliding bearing B is the same as that of the sliding bearing shown in FIG. It accommodates one or more spiral-shaped elastic bodies 6 having the same configuration as the sliding member 3 explained in connection with the sliding bearing A, and is designated by 21r! in the Js2 diagram. A spiral elastic body 6
f: It is stored with the seal ring 7 sandwiched therebetween. Then, on the upper surface of this spiral-shaped elastic body 6, the sliding member 3f of FIG.
It is configured to allow relative sliding.

As described in detail above, the sliding bearing according to the present invention not only has a high temperature and high load capacity but also exhibits various technical effects compared to this type of conventional sliding bearing. In other words, in the past, when the relative sliding between the superstructure and the substructure, that is, the sliding function, was important, there was a method in which fluorine-based resin f: was bonded to a metal plate, but it did not have an angle absorption function and the sliding surface It has a defect 8 in that foreign matter harmful to friction, such as sand and dust, gets into the gaps. With the sliding bearing according to the present invention, even if harmful foreign intelligence enters,
It is equipped with a sliding material that can withstand this. Also, conventionally,
Although there is a bearing with a rubber elastic body in the rounding to provide an angle absorption function, it lacks durability under high temperatures and lacks MS+ properties as a bearing, but the sliding 9 bearing according to the present invention has The drawbacks have been resolved, and it can make a great contribution to industry.

[Brief explanation of the drawing]

The drawings all show a clear bearing according to the undiscovered invention, Figure 1 is a sectional view of a sliding bearing showing an embodiment, and Figure 2 is a sectional view of a sliding bearing showing another embodiment. Ru. 1.5...Lower shoe 3...Sliding member 3a...Metal hoop 3b...Buffer tube 4... Upper shoe 6... Spiral-shaped elastic body 8... Intermediate plates A, B...Sliding bearing Applicant Nippon Pillar Kogyo Co., Ltd.

Claims (2)

[Claims] (1) Between the lower shoe fixed to the lower structure and the upper shoe fixed to the upper structure, a metal hoop and buffer tape are overlapped and wound multiple times, and a rolled sliding member is fitted. Naru slip 9 support. (2) A lower shoe that is fixed to the lower structure, and a recess provided on the upper surface of the lower shoe, in which a metal hoop and buffer tape are overlapped and wound multiple times, and a coiled elastic material is stored therein. On top of that, a metal hoop and a buffer tape are superimposed on each other via an intermediate plate, and a winding ils# is fitted onto the top of the metal hoop and a buffer tape, which is fixed to the upper structure. +11)
Support.