Thrust bearing bush device with elastic support and capable of being replaced on line

Abstract

The thrust bearing bush device comprises a half-wall stainless steel pipe, a bush holder, a rectangular groove and a runner plate, the rectangular groove is formed in the upper surface of the bush holder, the half-wall stainless steel pipe is clamped in the rectangular groove in the bush holder in the circumferential direction, the half-wall stainless steel pipe forms an elastic contact surface on the bush holder, and the runner plate is connected with the half-wall stainless steel pipe. The half-wall stainless steel pipes can be drawn out of the rectangular grooves circumferentially or taken out vertically, the half-wall stainless steel pipes are manufactured in the mode of extruding through an extruding machine or turning through a lathe, the upper ends of the rectangular grooves are of opening structures, and the rectangular grooves are formed in the surface of the tile support at equal intervals. The height of the half-wall stainless steel tube is greater than the radius of the stainless steel tube; the thrust bearing bush device has the advantages that the thrust bearing bush device supports the load of the vertical mill speed reducer by utilizing the sliding contact of the half-wall stainless steel pipe cluster and the equal-height plane to the thrust runner plate, the thrust bearing bush device does not need to specially grind the plane, the worn stainless steel pipe fittings can be easily replaced on line, and convenience is brought to processing, assembling and replacing.

Description

Technical Field

[0001] The utility model relates to the technical field of thrust bearing bushes of vertical mill reducers, in particular to a thrust bearing bush device which has elastic support and can be replaced online. Background Art

[0002] At present, the raw material and slag vertical mills in the building materials industry are developing towards super-large production lines, with increasingly larger power, and the corresponding vertical mill reducers are also getting larger. During the use of traditional vertical mill reducers, after the thrust bearing is damaged, it cannot be replaced and repaired online, and the reducer must be pulled out from the bottom of the mill, which greatly increases the maintenance time and cost; how to improve the thrust bearing structure and how to replace parts online after a certain number of years of use are problems that technicians in this field need to solve urgently. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the existing defects and provide a thrust bearing device with elastic support and online replaceable, which utilizes the sliding contact of the half-wall stainless steel pipe cluster with the mirror plate at the same height to provide support for the load of the opposing grinding reducer. The thrust bearing device does not require special grinding of the flat surface and can easily replace worn stainless steel pipe fittings online, which brings convenience to processing, assembly and replacement and can effectively solve the problems in the background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a thrust bearing device with elastic support and online replaceability, comprising a half-wall stainless steel tube, a bearing support, a rectangular groove and a mirror plate, wherein the rectangular groove is arranged on the upper surface of the bearing support, the half-wall stainless steel tube is circumferentially clamped in the rectangular groove on the bearing support, and the half-wall stainless steel tube forms an elastic contact surface on the bearing support, and the elastic contact surface is in sliding contact with the mirror plate.

[0005] Furthermore, the half-wall stainless steel pipe can be drawn out from the rectangular groove in a circular manner or taken out up and down, and the half-wall stainless steel pipe is manufactured by extruding with an extruder or turning with a lathe.

[0006] Furthermore, the upper end of the rectangular groove is an open structure, and the rectangular grooves are arranged at equal intervals on the surface of the watt support.

[0007] Furthermore, the height of the half-wall stainless steel pipe is greater than the radius of the stainless steel pipe.

[0008] Compared with the prior art, the beneficial effects of the utility model are:

[0009] The structure is simple in design and utilizes half-wall stainless steel pipe clusters to make equal-height sliding contact with the mirror plate to provide support for the load of the opposing mill reducer. The thrust bearing device does not require special flat grinding and worn stainless steel pipe fittings can be easily replaced online, bringing convenience to processing, assembly and replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the structure of the utility model;

[0011] Figure 2 It is a schematic diagram of the contact structure between the utility model and the mirror plate.

[0012] In the figure: 1 half-wall stainless steel tube, 2 watt support, 3 rectangular groove, 4 mirror plate. DETAILED DESCRIPTION

[0013] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0014] See also Figure 1-2 The utility model provides a technical solution: a thrust bearing device with elastic support and online replaceability, comprising a half-wall stainless steel tube 1, a watt support 2, a rectangular groove 3 and a mirror plate 4, wherein the rectangular groove 3 is arranged on the upper surface of the watt support 2, and the half-wall stainless steel tube 1 is circumferentially stuck in the rectangular groove 3 on the watt support 2, and the half-wall stainless steel tube 1 can move freely in the rectangular groove 3. When a very small number of half-wall stainless steel tubes 1 with slightly higher heights are vertically subjected to loads, they are first pressed up and down, elastically compressed and deformed to the same height as many half-wall stainless steel tubes 1, and jointly bear the load pressure, and the half-wall stainless steel tube 1 forms an elastic contact surface on the watt support 2, and the elastic contact surface is in sliding contact with the mirror plate 4, and the half-wall stainless steel tube 1 cluster is in sliding contact with the mirror plate to provide support for the load of the vertical grinding reducer; the thrust bearing device with the half-wall stainless steel tube 1 cluster having the same height surface does not need to be specially ground for the flat surface, and the thrust bearing device with the half-wall stainless steel tube fittings that can be replaced brings convenience to processing, assembly and replacement.

[0015] The half-wall stainless steel tube 1 can be drawn out from the rectangular groove 3 in a circular manner or taken out up and down. This method is convenient for replacing the half-wall stainless steel tube 1 and has the advantage of easy operation. The half-wall stainless steel tube 1 is made by extrusion by an extruder or turning by a lathe. The half-wall stainless steel tube 1 can be cut off half of the wall on a lathe. The half-wall stainless steel tube 1 not only provides stiffness for the thrust bearing similar to a spring, but also provides damping. When the vertical mill reducer rotates, the surrounding and interior of the half-wall stainless steel tube 1 are filled with cooling oil. Due to the mechanical dynamic pressure effect, a fluid dynamic pressure lubrication effect is generated. The internal lubricating oil is conducted to the outside of the shell through the oil inlet and the oil outlet and is connected to the external oil exchange system for cooling.

[0016] Remove the thrust bearing cover on the outer periphery of the vertical mill reducer, use a hydraulic jack to vertically push it open a certain distance, pull out the half-wall stainless steel pipe 1 in the circumferential direction, and easily replace the worn stainless steel pipe fittings online.

[0017] The watt-support 2 is limited on the base support plate inside the reducer, and the half-wall stainless steel pipe 1 is limited in the rectangular groove 3 on the watt-support 2, respectively limiting the circumferential circular movement, and the half-wall stainless steel pipe 1 is arranged radially and centripetally around the center of the circle.

[0018] The upper end of the rectangular groove 3 is an open structure, and the rectangular grooves 3 are arranged at equal intervals on the surface of the watt support 2.

[0019] The height of the half-wall stainless steel pipe 1 is greater than the radius of the stainless steel pipe, so that the two feet of the half-wall stainless steel pipe 1 are stably positioned in the rectangular groove 3; the selection of the wall thickness of the half-wall stainless steel pipe 1 is determined according to the load capacity.

[0020] When the half-wall stainless steel pipe 1 can be replaced online as a component, first remove the thrust bearing protection cover on the outer periphery of the vertical mill reducer, use three hydraulic jacks to support the grinding disc in three directions, move it up and down to a certain height, and then pull out the half-wall stainless steel pipe 1 for replacement.

[0021] The mirror plate 4 is made of high-temperature nickel-based alloy; the cluster contact surface formed by the mirror plate 4 and the half-wall stainless steel tube 1 forms a dynamic oil film with each other, and the heat generated by the friction between the half-wall stainless steel tube 1 and the mirror plate 4 is taken away by the lubricating oil, which is cooled by the cooler and then returned to the oil tank of the vertical mill reducer.

[0022] The basic principles, main features and advantages of the present invention are shown and described above. Without departing from the spirit and scope of the present invention, the present invention may also be subject to various changes and improvements, which are all within the scope of the present invention to be protected.

Claims

1. A thrust bearing device with elastic support and capable of online replacement, comprising a half-wall stainless steel tube (1), a bearing support (2), a rectangular groove (3) and a mirror plate (4), characterized in that: A rectangular groove (3) is arranged on the upper surface of the watt support (2), and the half-wall stainless steel tube (1) is circumferentially clamped in the rectangular groove (3) on the watt support (2). The half-wall stainless steel tube (1) forms an elastic contact surface on the watt support (2), and the elastic contact surface is in sliding contact with the mirror plate (4).

2. A thrust bearing device with elastic support and online replaceability according to claim 1, characterized in that: The half-wall stainless steel tube (1) can be drawn out from the rectangular groove (3) in a circular manner or taken out up and down. The half-wall stainless steel tube (1) is manufactured by extrusion by an extruder or lathe turning.

3. A thrust bearing device with elastic support and online replaceability according to claim 1, characterized in that: The upper ends of the rectangular grooves (3) are open structures, and the rectangular grooves (3) are arranged at equal intervals on the surface of the watt support (2).

4. A thrust bearing device with elastic support and online replaceability according to claim 1, characterized in that: The height of the half-wall stainless steel tube (1) is greater than the radius of the stainless steel tube.

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