CN203565759U

CN203565759U - Rotary-drum heater

Info

Publication number: CN203565759U
Application number: CN201320709646.8U
Authority: CN
Inventors: 杨福康
Original assignee: Wuxi Kanghui Machine Building Co Ltd
Current assignee: Wuxi Kanghui Machine Building Co Ltd
Priority date: 2013-11-12
Filing date: 2013-11-12
Publication date: 2014-04-30
Anticipated expiration: 2023-11-12

Abstract

The utility model provides a rotary-drum heater. According to the rotary-drum heater, a heat source comes into contact with crude sand at an interval, thus avoiding pollution to the crude sand, uniformly heating the crude sand, and improving the heating effect. The rotary-drum heater comprises a support base and a main shaft installed on the support base by a bearing base and a bearing, wherein an outer bucket is installed on the support base by a support plate, and a charging opening and a discharging opening are formed in the outer bucket respectively. The rotary-drum heater is characterized in that one end of the main shaft penetrates through the outer bucket and an inner bucket is connected to the shaft end; a plurality of sand shakeout grooves are uniformly formed in the inner bucket; an end cover is further connected to the outer bucket; and a burnter fixing frame is arranged at the top of the end cover.

Description

Roller heater

Technical field

The utility model relates to precoated sand production equipment technical field, is specially roller heater.

Background technology

Precoated sand, sand grain surface is covered with molding sand or the core of one deck hard resin film before moulding, and it is roughing sand that precoated sand mainly adopts the selected natural siliceous sand of high-quality, and adds novolac resin, and curing agent, lubricant, reinforcing agent etc. are raw material.Precoated sand moulding is used in the intricate casting that dimension precision requirement is higher, one of optimum shaping materials such as automobile, tractor, hydraulic part, along with the development of domestic and international machinery industry especially automobile industry, more and more higher to casting quality requirement, the application of precoated sand is more and more extensive.

While adopting the mixed precoated sand processed of hot method technique, first require roughing sand to heat equably, more existing firing equipments directly use thermal source to heat roughing sand, can roughing sand be produced and be polluted, thereby reduce the quality of precoated sand, its heating effect is undesirable simultaneously, fail to realize the homogeneous heating to roughing sand, part roughing sand excess Temperature and simultaneously also have part roughing sand to fail to be heated to set point of temperature, roughing sand heating-up temperature is relevant with resin used, too highly waste energy, reduce productivity ratio, and roughing sand also there will be powder phenomenon-tion when heating-up temperature is too high, thereby reduce the quality of precoated sand, and roughing sand heating-up temperature is as the lowest temperature lower than adding resin regulation, because not adding again resin, scrap.

Utility model content

For the problems referred to above, the utility model provides roller heater, and it makes thermal source contact with roughing sand interval, has avoided the pollution to roughing sand, and can heat equably roughing sand, has improved heating effect.

Its technical scheme is such: it comprises bearing and is arranged on the main shaft on described bearing by bearing block and bearing, on described bearing, by gripper shoe, outer barrel is installed, in described outer barrel, be respectively arranged with charging aperture and discharging opening, it is characterized in that: one end of described main shaft is connected with interior bucket through described outer barrel and at axle head, on described interior bucket, some knockout grooves have been evenly arranged, in described outer barrel, be also connected with end cap, the top of described end cap is provided with combustor fixed mount;

It is further characterized in that: described interior bucket comprises terminal pad and front connecting ring, back clevis, described terminal pad is mounted on by key on the axle head of described main shaft, described terminal pad is connected with back clevis by screw, and described knockout groove is distributed between described front connecting ring and described back clevis;

On described back clevis, be distributed with some gussets, some hangers are set on described gusset, on described front connecting ring, be provided with corresponding hanger, between described hanger, connect drag hook and screw-button locking;

In described outer barrel, be provided with observation panel;

In described outer barrel, be also provided with dedusting interface, described dedusting interface is connected with dust removal machine;

On described combustor fixed mount, combustor is installed;

On described main shaft, sprocket wheel is installed, described sprocket wheel is by chain connecting drive device;

Described outer barrel and described end cap are connected through the hinge.

Adopt after design of the present utility model, sand falls into respectively each knockout groove from charging aperture and is divided into aliquot, drive unit drive shaft is rotated, interior bucket rotates thereupon, combustor work is heated sand, in the knockout groove of sand between outer barrel and inner barr, roll and be subject to uniform heating, from discharging opening, discharge again, such design makes sand and thermal source isolation indirect, avoided the pollution to sand, adopted multiple knockout grooves sand has been divided into multiple aliquots, sand can be uniformly heated, rotary drum-type is rolled sand again in knockout groove simultaneously, further realize the homogeneous heating to sand, heating effect is good.

Accompanying drawing explanation

Fig. 1 is that master of the present utility model looks cross-sectional schematic;

Fig. 2 is schematic side view of the present utility model.

The specific embodiment

Below in conjunction with drawings and Examples, the utility model is described further:

See Fig. 1 to Fig. 2, the utility model comprises bearing 1 and is arranged on the main shaft 4 on bearing 1 by bearing block 2 and bearing 3, on bearing 1, by gripper shoe 5, outer barrel 6 is installed, in outer barrel 6, be respectively arranged with charging aperture 7 and discharging opening 8, one end of main shaft 4 is connected with interior bucket through outer barrel 6 and at axle head, interior bucket comprises terminal pad 9 and front connecting ring 10, back clevis 11, terminal pad 9 is mounted on by key 12 on the axle head of main shaft 4, terminal pad 9 is connected with back clevis phase 11 by screw 13, between front connecting ring 10 and back clevis 11, be evenly distributed with 24 knockout grooves 13, in outer barrel 6, be also connected with end cap 14, the top of end cap 14 is provided with combustor fixed mount 15, combustor (not providing in figure) is installed on combustor fixed mount 15, on back clevis 11, be distributed with some gussets 16, some hanger 17a are set on gusset 16, on front connecting ring 10, be provided with corresponding hanger 17b, hanger 17a, between 17b, connect drag hook 18 and spiral 19 padlocks are tight, in outer barrel 6, be provided with observation panel 20, in outer barrel 6, be also provided with dedusting interface 21, dedusting interface 21 is connected with dust removal machine (not providing in figure), sprocket wheel 22 is installed on main shaft 4, sprocket wheel 22 is by chain (not providing in figure) connecting drive device (not providing in figure), outer barrel 6 is connected by hinge 23 with end cap 14.

Adopt after design of the present utility model, sand falls into respectively each knockout groove 12 from charging aperture 7 and is divided into aliquot, drive unit (not providing in figure) drive shaft 4 is rotated, interior bucket rotates thereupon, combustor (not providing in figure) work is heated sand, in the knockout groove 12 of sand between outer barrel 6 and interior bucket, roll and be subject to uniform heating, from discharging opening 8, discharge again, such design makes sand and thermal source isolation indirect, avoided the pollution to sand, adopted multiple knockout grooves 12 sand has been divided into multiple aliquots, sand can be uniformly heated, rotary drum-type is rolled sand again in knockout groove 12 simultaneously, further realize the homogeneous heating to sand, heating effect is good, dedusting interface 21 micro mist and the impurity that can get rid of sand is set, can in heating process, play at sand dry method cleans and catharsis simultaneously, improve the quality of roughing sand.

Claims

1. roller heater, it comprises bearing and is arranged on the main shaft on described bearing by bearing block and bearing, on described bearing, by gripper shoe, outer barrel is installed, in described outer barrel, be respectively arranged with charging aperture and discharging opening, it is characterized in that: one end of described main shaft is connected with interior bucket through described outer barrel and at axle head, on described interior bucket, be evenly arranged some knockout grooves, be also connected with end cap in described outer barrel, the top of described end cap is provided with combustor fixed mount.

2. roller heater according to claim 1, it is characterized in that: described interior bucket comprises terminal pad and front connecting ring, back clevis, described terminal pad is mounted on by key on the axle head of described main shaft, described terminal pad is connected with back clevis by screw, and described knockout groove is distributed between described front connecting ring and described back clevis.

3. roller heater according to claim 2, it is characterized in that: on described back clevis, be distributed with some gussets, some hangers are set on described gusset, on described front connecting ring, are provided with corresponding hanger, between described hanger, connect drag hook and screw-button locking.

4. roller heater according to claim 1, is characterized in that: in described outer barrel, be provided with observation panel.

5. roller heater according to claim 1, is characterized in that: in described outer barrel, be also provided with dedusting interface, described dedusting interface is connected with dust removal machine.

6. roller heater according to claim 1, is characterized in that: on described combustor fixed mount, combustor is installed.

7. roller heater according to claim 1, is characterized in that: on described main shaft, sprocket wheel is installed, described sprocket wheel is by chain connecting drive device.

8. roller heater according to claim 1, is characterized in that: described outer barrel and described end cap are connected through the hinge.