CN2280084Y

CN2280084Y - Supporting roller for steel rope

Info

Publication number: CN2280084Y
Application number: CN 96248681
Authority: CN
Inventors: 张德军
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-12-16
Filing date: 1996-12-16
Publication date: 1998-04-29
Anticipated expiration: 2006-12-16

Abstract

The utility model relates to a supporting roller for a steel wire rope, which comprises a casing body, a bearing, a wear-resistant layer, and a shaft, wherein, the bearing is fixedly sheathed in the casing body; the wear-resistant layer with an equal thickness is sheathed on the outer surface of the casing body, and is fixed on the casing body by a stud to form a roller wheel assembly together; two or more roller wheel assemblies are sheathed on a same shaft; both ends are fixed by retainer rings; wholes of movable gaps are arranged between the formed adjacent roller wheel assemblies. Because the utility model adopts an assembly type, the dead weights of the roller wheel assemblies are reduced, and thus, the utility model has the advantages of simple structure, easy manufacturing, small rotary inertia, convenient assembly, convenient maintenance, the exchanges of components and parts, strong universality, and long service life.

Description

Steel cable pulley

The utility model belongs to the mine and uses carrying roller with oblique and horizontal rope traction protection, specifically is a kind of Steel cable pulley.

Present mine; the support protection that mine is oblique or the horizontally tracting steel rope is used; used Steel cable pulley; mostly be whole by cast iron; the cylinder that white pig iron or grey pi iron casting form; it is easily eccentric that its centre hole adds man-hour; increase rotary resistance; because of material hardness big; serious to steel rope abrasion; reduced safety; heavier because of roll body simultaneously; cause rotor inertia big; be difficult to start running; damage easy to wear, and integral body is scrapped after the place wearing and tearing, and degree of utilization is low; waste is big; for this reason, people also did bigger improvement to this design, as disclosed 93219285 combined idlers of Chinese patent; mainly by cylindrical shell; axle; bearing and gland are formed; cylindrical shell is by filling oil-containing MC nylon jacket and the moulding of steel pipe core retainer plate unit-cast unit, and the external diameter of cylindrical shell has number row spill grooving, hole spring collar fixed type bearing gland; bearing; though this holder rope roller has alleviated the wearing and tearing to steel rope; and the deadweight that has alleviated the holder rope sheave accordingly, but it has still existed whole service life short, and waste is big; be difficult for processing; safety is relatively poor, and roll body is heavy, the defective that rotor inertia is big.

The purpose of this utility model is to provide a kind of and is used for the mine, mine is oblique or the protection of the support of horizontally tracting steel rope, and simple in structure, rotor inertia is little, assembling, easy to maintenance, and parts exchange, the Steel cable pulley of highly versatile.

The utility model is achieved through the following technical solutions:

It is a kind of Steel cable pulley, comprise housing, bearing, wearing layer and axle, housing internal fixation bearing set, wearing layer at housing outer surface suit uniform thickness, and be fixed by bolts on the housing, constitute a roll assembly jointly, 2 or 2 above roll assemblies be sleeved on coaxial on, with the fixing two ends of back-up ring, leave the integral body of free gap between the adjacent roller wheel assembly of composition.

Above-mentioned axial external surface is the "T"-shaped structure of sphere, and to be processed with angle at the outside face of wearing layer be 90 ° V-arrangement grooving, or be respective standard rope diameter 7/10 to V-arrangement grooving with the footpath, bearing set in housing, suit is isometrical simultaneously in the outside The shape door, sidewall is used fixedly, and the bolt of wearing layer is fixed on the housing simultaneously, coaxial roll assembly the best that goes up suit is 2-4, axle between adjacent 2 roll assemblies is gone up the suit locating bush, the two ends of locating bush are fixedly connected with bearing inner ring respectively, and each roll assembly is all installed seal ring with the connection place of axle.

The utility model compared with prior art, because of roll body has substituted the integral structure of unit-cast unit with sectional construction, so have the following advantages:

1, simple in structure, be easy to processing.

2, rotor inertia little, be convenient to assembling, safeguard.

3, parts exchange, highly versatile.

4, long service life.

Describe in further detail below in conjunction with accompanying drawing:

Fig. 1: the utility model structural representation.

Among the figure: 1,2 trip rings, 3 housings, 4 wearing layers, 5 binding bolts, 6 bearing cap shims, 7 bearings, 8 bearing carrier rings, 9 middle shells, 10 seal rings, 11 inner shield rings, 12 hold-doun nuts, 13 groovings

In use; axle 1 with carrying roller is placed on the support that fixes successively in advance earlier; steel rope touches in the grooving 13 that drops on wearing layer 4; when steel rope normally drags; steel rope drives corresponding middle shell 9 in grooving 13 and bearing 7 rotates around axle 1; seal ring 10 is because of in the bearing cap shim 6 of (3 or 9) that are fixed into housing; simultaneously; also rotate around the inner spacer sleeve 11 of determining two roll body gaps; cover contacts in nearly bearing inner sleeve in inner spacer sleeve 11 and the middle roll body and the end roll body; and be subjected to the fixing of hold-doun nut 12 thrusts and do not rotate; hold-doun nut 12 is fixed by trip ring 2 again; when the end roll body rotates; seal ring 10 in the housing 3 rotates around hold-doun nut 12; the overcoat of two bearings 7 is by two bearings lid 6 and bearing carrier ring 8 location in the middle roll body; bearing 7 in the end roll body is by the interstation location in bearing cap shim 6 and the housing 3; seal ring in each roll body bearing cap shim 6 and the seal ring in the housing 3 are in order to discharge water; put dirt; protection internal bearings 7; and remainder does not rotate because of being separated by inner shield ring 11; because the guide rail of mine or mine is difficult to guarantee level and smooth transition and lays; so in rope traction jerking movement or anxious stopping time; steel rope is beated easily and is deviate from from grooving 13; at this moment the T-shaped housing 3 in two ends is because of exceeding wearing layer 4 greatly; so just steel rope is blocked in carrying roller; even if steel rope is jumped out outside the carrying roller once in a while; steel rope also can easily slide into along the spherical end surface of housing 3 outer ends in the grooving 13; when the wearing layer 4 of wherein 1 or several roll assemblies or miscellaneous part damage to some extent; only need Panasonic's binding bolt 5; open trip ring 2 and unload a group of damage; again change wearing layer 4 or damage parts and get final product; so just can save a large amount of rapid wear materials; the reduction of maximum possible use; maintenance cost; and because of grooving adopt be V-arrangement or with steel rope near U-shaped structure with the footpath; wearing layer 4 and steel rope are worn and torn evenly mutually; prolong service life each other, and increased safety.

Claims

1, a kind of Steel cable pulley, comprise housing, bearing, wearing layer and axle, housing internal fixation bearing set, wearing layer at housing outer surface suit uniform thickness, and be fixed on the housing the common roll assembly that constitutes with double-screw bolt, it is characterized in that 2 or 2 above roll assemblies be sleeved on coaxial on, with the fixing two ends of back-up ring, leave the integral body of free gap between the adjacent roller wheel assembly of composition.

2, Steel cable pulley according to claim 1, it is characterized in that the axle both ends roll assembly housing, axial external surface is the "T"-shaped structure of sphere.

3, Steel cable pulley according to claim 1 is characterized in that it is 90 ° V-arrangement grooving that outside face at wearing layer is processed with the above angle of 1 row.

4, Steel cable pulley according to claim 1, it is characterized in that the outside face of wearing layer process promising respective standard wirerope diameter 7/10 to the footpath " U " shape grooving.

5, Steel cable pulley according to claim 1 is characterized in that the outside while suit of bearing set in the housing is isometrical

Shape door, sidewall are used fixedly, and the bolt of wearing layer is fixed on the housing simultaneously.

6, Steel cable pulley according to claim 1 is characterized in that coaxial roll assembly the best that goes up suit is 2～4.

7, according to claim 1,6 described Steel cable pulley, it is characterized in that the axle between adjacent 2 roll assemblies is gone up the suit locating bush, the two ends of locating bush are fixedly connected with bearing inner ring respectively.

8, Steel cable pulley according to claim 1 is characterized in that seal ring is all installed in the connection place of each roll assembly and axle.