CN202967971U

CN202967971U - Heavy type hoisting drum

Info

Publication number: CN202967971U
Application number: CN 201220706390
Authority: CN
Inventors: 胡鹏宇; 艾英君
Original assignee: Dhidcw Group Co Ltd; Dalian Huarui Heavy Industry Group Co Ltd
Current assignee: Dhidcw Group Co Ltd; Dalian Huarui Heavy Industry Group Co Ltd
Priority date: 2012-12-14
Filing date: 2012-12-14
Publication date: 2013-06-05
Anticipated expiration: 2022-12-14

Abstract

The utility model discloses a heavy type hoisting drum which comprises a spline shaft, a bearing seat, two end plate groups, a baffle and a drum body. The heavy type hoisting drum is characterized in that each end plate group comprises an end plate fixed at the front end of a shaft sleeve and a skirt plate fixed at the back end of the shaft sleeve and fixed with the end plate. The baffle is further fixed at the back end of the shaft sleeve, a bearing seat is fixed on the spline shaft, one end of the spline shaft is fixed in the shaft sleeve, and the two end plate groups are respectively fixed at two ends of the drum body. The heavy type hoisting drum is applied to a hoisting device, interference fit of the shafts and the sleeves at two ends replaces the welding installation mode of the conventional shaft and the drum body, and the drum is not limited by weldability of materials. The heavy type hoisting drum adopts the technology that the end plates are separated from the drum body, does not require a larger heating furnace, and has the advantages of being short in processing and manufacture time, small in energy consumption, simple in assembly, high in efficiency, energy-saving and the like.

Description

The heavy lifting reel

Technical field

The utility model relates to a kind of reel, specifically a kind of heavy lifting reel.

Background technology

At present, the technological requirement of forging factory etc. in some steel mills, casting adopts the ladle carne of single suspension centre, its main hoisting mechanism adopts two side reducer slow-speed shafts jointly to drive intermediate winding drum version, respectively there is a male splined shaft at the reel two ends, two castellated shafts are arranged on the two end axles bearing, two side speed reducer low speed ends are female splines, and two side speed reducers adopt spline engagement to be sleeved on the reel male splined shaft, and drum shaft is born retarder weight.This reel adopts castellated shaft to be welded on the straw hat skirtboard, and the straw hat skirtboard is welded on form on cylindrical shell again.Need to satisfy the weldability of each soldered material because of welding, guarantee again load-carrying capacity and the economy of each part, so the castellated shaft material can only adopt carbon constructional quality steel 35, straw hat skirtboard and end plate adopt steel material Q345B.

There is following shortcoming in this version reel:

1. the stressed complexity of weld seam;

2. when hoisting capacity is large, drum diameter is larger, when the intensity of castellated shaft 35 steel can not meet operating needs and need to improve material capability, the weldability of the forging material such as 45 steel of our routine and 42CrMo and Q345B steel plate was relatively poor, can't use;

3. when the hoisting capacity increasing, castellated shaft and cylindrical shell weld stress increase when needing to increase weld bead height, because of the welding process restriction, can't increase weld seam;

4. when fatigue, crackle appear in the straw hat skirtboard, the distortion equivalent damage need be with whole changing bobbins.

In a word, prior art can't satisfy the reel operating needs of major diameter, severe duty, therefore provides a kind of heavy lifting reel that is applicable to single hoisting point foundry crane to become the technical barrier that can need to be resolved hurrily.

The utility model content

According to the technical matters of above-mentioned proposition, and provide a kind of heavy lifting reel, to satisfy the hoist roller operating needs of major diameter, severe duty.

The technological means that the utility model adopts is as follows:

A kind of heavy lifting reel, comprise castellated shaft, bearing seat, two end plate groups, baffle plate and cylindrical shells, it is characterized in that: described end plate group comprise the end plate that is fixed on the axle sleeve front end and be fixed on described axle sleeve rear end and with the fixing skirtboard of described end plate, the rear end of described axle sleeve also is fixed with described baffle plate; Be fixed with described bearing seat on described castellated shaft, an end of described castellated shaft is fixed in described axle sleeve, and two described end plate groups are fixed on respectively the two ends of described cylindrical shell.

Preferably, the axial cross section of described skirtboard is trapezoidal.

Preferably, the fixed form of an end of described castellated shaft and described axle sleeve is interference fit.

Preferably, described end plate group and described cylindrical shell are fixing closing by flange.

Principle of work of the present utility model is that retarder passes to castellated shaft by the moment of torsion that gear meshes electrical motor, and what castellated shaft and end plate group adopted is interference fit, and the extrusion stress that interference fit produces passes to the end plate group with the moment of torsion of castellated shaft.Together with the end plate group put together on by flange with cylindrical shell, border bolt group passed to cylindrical shell with the moment of torsion on the end plate group, and cylindrical shell rotarily drives rising and the decline that lifting mechanism is completed in the steel rope folding and unfolding.

The utlity model has following advantage:

1, the extrusion stress transmitting torque that adopts interference fit to produce, the processing of axle sleeve hole and spline optical axis end difficulty of processing are little, avoided the weld seam between castellated shaft and end plate not only to bear the phenomenon of positive pressure but also transmitting torque, and eliminated weld seam and born the potential safety hazard that complex stress brings;

2, the end plate group is separated with cylindrical shell, during assembling, only need end plate group rather than the heating of whole cylindrical shell, then end plate group and castellated shaft are completed the interference assembling, then with the end plate group that assembles and castellated shaft and cylindrical shell by flange closing the assembling of finally completing the reel group.This assembling only needs less heating furnace, and the time is short, energy consumption is little, efficient is high;

3, adopt the axle sleeve of identical material and end plate, skirtboard integrally welded, not restricted by the weldability of material;

4, the castellated shaft material is not limited to, and can calculate the material that needs select to select arbitrarily matching performance according to intensity.

The utility model heavy lifting reel two ends adopt castellated shaft to be inserted in axle sleeve by interference fit, axle sleeve and barrel soldering, the Type of Welding that replaces castellated shaft and end plate group, solved the castellated shaft assembly problem of major diameter drum, avoid the welding difficult problem of forged material and roll plate, optimized reel structure; Adopt end plate and cylindrical shell isolation technics, bobbin trunk and end plate Type of Welding changed the flange handle into and closed form in the past, did not need larger heating furnace, had that the processing and manufacturing time is short, energy consumption is little, be convenient to hot charging, simple to operate, efficient advantages of higher.

The utility model is applicable to the operation needs of major diameter, high pulling torque for the foregoing reasons.

Description of drawings

Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.

Fig. 1 is structural representation of the present utility model.

Fig. 2 is end plate group schematic diagram of the present utility model.

In figure: 1, castellated shaft 2, bearing seat 3, end plate group 31, axle sleeve 32, skirtboard 33, end plate 4, baffle plate 5, cylindrical shell

The specific embodiment

As Fig. 1, shown in Figure 2, a kind of heavy lifting reel, comprise castellated shaft 1, bearing seat 2, two end plate groups 3, baffle plate 4 and cylindrical shells 5, described end plate group 3 comprise the end plate 33 that is fixed on axle sleeve 31 front ends and be fixed on described axle sleeve 31 rear ends and with the fixing skirtboard 32 of described end plate 33, the axial cross section of described skirtboard 32 is trapezoidal, i.e. the straw hat type skirtboard; The rear end of described axle sleeve 31 is bolted with described baffle plate 4; Be fixed with described bearing seat 2 on described castellated shaft 1, an end interference fit of described castellated shaft 1 is in described axle sleeve 31, and two described end plate groups 3 close by the flange handle two ends that are fixed on described cylindrical shell 5 respectively.

The utility model first is assembled together castellated shaft 1 and end plate group 3 technique by hot charging in the assembling timing.Concrete grammar is with 280 ℃～300 ℃ of end plate group 3 heating, and whether insulation is put in the level land after approximately taking out in 2 hours from stove, up to standard with the drift gage hatch with the hole, up to standard after, castellated shaft 1 is inserted in the axle sleeve 31 of end plate group 3, form one after hot charging cooling in air.And then will organize all-in-one-piece castellated shaft 1 and end plate group 3 puts together on cylindrical shell 5, then with same method, another group castellated shaft 1 and end plate group 3 are put together on cylindrical shell 5.

The above; it is only the better specific embodiment of the utility model; but protection domain of the present utility model is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; be equal to replacement or changed according to the technical solution of the utility model and utility model design thereof, within all should being encompassed in protection domain of the present utility model.

Claims

1. heavy lifting reel, comprise castellated shaft (1), bearing seat (2), two end plate groups (3), baffle plate (4) and cylindrical shell (5), it is characterized in that: described end plate group (3) comprise the end plate (33) that is fixed on axle sleeve (31) front end and be fixed on described axle sleeve (31) rear end and with the fixing skirtboard (32) of described end plate (33), the rear end of described axle sleeve (31) also is fixed with described baffle plate (4); Be fixed with described bearing seat (2) on described castellated shaft (1), an end of described castellated shaft (1) is fixed in described axle sleeve (31), and two described end plate groups (3) are separately fixed at the two ends of described cylindrical shell (5).

2. heavy lifting reel according to claim 1, it is characterized in that: the axial cross section of described skirtboard (32) is trapezoidal.

3. heavy lifting reel according to claim 1, it is characterized in that: the fixed form of an end of described castellated shaft (1) and described axle sleeve (31) is interference fit.

4. heavy lifting reel according to claim 1 is characterized in that: described end plate group (3) is fixing closing by flange with described cylindrical shell (5).