CN202254786U - Roller kiln - Google Patents

Abstract

The utility model provides a roller kiln. In the roller kiln, fixing bolts for fixing connecting pins are not required and the working hours of the operation of assembling a driving shaft at the side of a connection driving power and a driven shaft at the side of a roller can be shortened. In the roller kiln, connecting pins (17, 18) running through a driving shaft (7) and a driven shaft (13) towards the diameter direction are respectively driven into the driving shaft (7) of the connection driving device (6) of the roller kiln and a sleeve (16) of the driven shaft (13) at the side of a roller (3); and a cylindrical hood (19) for preventing the connecting pins (17, 18) from falling off is sleeved on the outer periphery of the sleeve (16) and is fixed by a C-shaped ring (20).

Description

Roller kilns

Technical field

The utility model relates to roller kilns, and these roller kilns are used for drying or burn till various workpiece.The kind of the workpiece of handling with roller kilns also has semi-finished product, powder stock etc. various except formed products.

Background technology

Roller kilns are the stoves with following structure, that is, make roller in the inside of tunnel-shaped body of heater with a plurality of potteries of predetermined spacing configuration, and through rotating each roller at a predetermined velocity, when conveying is placed on the workpiece on the roller, it is heated.In general, each roller is driven by the drive unit of a side of the width that is located at body of heater, and the opposition side of each roller is supported by small-sized support rollers rotation freely.

Shown in patent documentation 1 (TOHKEMY 2000-146449 communique); Link by the sleeve that hear resistance metals such as stainless steel constitute from the driving shaft of drive unit side extension with from the driven shaft utilization that roll side is extended, on sleeve, be provided with the connecting pin that connects these.And, fix with set bolt, in order to avoid these connecting pins come off.But, squinting a little in case be formed on the position of the through hole of counterbore that the set bolt on the sleeve uses and connecting pin, set bolt just might become flexible or come off in conveying or in the running.

In addition; Want to link the driving shaft of drive unit side and the driven shaft of roll side; Must be in the installation with set bolt of squeezing into of the enterprising joining line pin of each roller, but because the radical of roller reaches hundreds of, the problem in the assembling man-hour more than therefore existences needs very.

The utility model content

Thereby; The purpose of the utility model is to solve above-mentioned problem in the past; A kind of roller kilns are provided, and these roller kilns do not need the fixedly set bolt of usefulness of connecting pin, and can cut down man-hour of assembly operation of the driven shaft of the driving shaft that links the drive unit side and roll side.

The utility model of making in order to solve above-mentioned problem is a kind of roller kilns; Inside at body of heater disposes many rollers with preset space length; And the drive unit that utilizes the side be located at body of heater makes each roller rotation, it is characterized in that, on the sleeve of the driven shaft of driving shaft that links drive unit and roll side; Squeeze into the connecting pin that connects these to diametric(al) respectively, and the tubular cover that prevents that above-mentioned connecting pin from coming off has been installed in the periphery of above-mentioned sleeve.

Moreover, preferably be arranged to structure along the end face of the axis direction of roller by the fixing above-mentioned tubular cover of the C shape that cooperates with above-mentioned sleeve ring.

The utlity model has following beneficial effect.

The roller kilns of the utility model are arranged to the two ends by the tubular cover restriction connecting pin of the periphery that is installed in sleeve, thereby prevent the structure that it comes off, and therefore do not need the fixedly set bolt of usefulness of such in the past connecting pin.So have following advantage, that is,, can cut down cost of manufacture, and can cut down the working hour of the driven shaft of the driving shaft that links the drive unit side and roll side not needing higher precision aspect the processing of the through hole of connecting pin.

In addition, can carry out assembling procedure if be arranged to more simply by the fixing structure along the end face of the axis direction of roller of tubular cover of C shape ring.

Description of drawings

Fig. 1 is the cutaway view of roller kilns of the embodiment of the utility model.

Fig. 2 is the partial sectional view of part of driven shaft that links driving shaft and the roll side of drive unit side.

Fig. 3 is the amplification view of major part.

Fig. 4 is the A-A cutaway view of Fig. 3.

Among the figure:

The 1-body of heater, 2-sidewall, 3-roller, 4-roller through hole, 5-support rollers; The 6-drive unit, 7-driving shaft, 8-helical gear, 9-motor, 10-driven wheel; The 11-seal box, 12-axle, 13-driven shaft, 14-hat part, 15-pin; The 16-sleeve, 17-first connecting pin, 18-second connecting pin, 19-tubular cover, 20-C shape ring.

The specific embodiment

The embodiment of the utility model below is described.

Fig. 1 is the cutaway view of stove cross direction of roller kilns of the embodiment of the utility model.In Fig. 1, mark 1 is tunnel-shaped body of heater, and mark 2 is its sidewalls, and mark 3 is rollers of the sidewall configuration about perforation.

On the length direction of body of heater 1, dispose many rollers 3 with preset space length.Roller 3 is the ceramic preferably system rollers of hear resistance and elevated temperature strength, and preferably the pottery by SiC matter constitutes.Extend outside stove from the roller through hole 4 that is formed on the sidewall 2 at the two ends of roller 3, and the end of one of which side is supported by 5 rotations of small-sized support rollers freely, and the opposing party's end is driven by drive unit 6 and rotates.In this embodiment, seal box 11 is set, prevents that extraneous air from invading the inside of body of heater 1 in the two end portions of roller 3.Workpiece W is placed on the roller 3, follows the inside that is rotated in body of heater 1 of roller 3 to be transferred at a predetermined velocity, is heated by heaters such as omitting illustrated heater simultaneously.

Drive unit 6 can be and the chain drive-type that was in the past likewise driven many rollers 3 by chain; But adopt the gear drive formula of following structure in this embodiment; Promptly; In the end of each driving shaft 7 helical gear 8 is set, the driven wheel 10 that is driven by motor 9 is meshed with each helical gear 8, thereby make driving shaft 7 rotations.Driven wheel 10 is installed on the axle 12 of the length of the length direction extension of body of heater 1.

As shown in Figure 2, this driving shaft 7 links with the driven shaft that extends from roller 3 sides 13 in the inside of seal box 11.Moreover the driven shaft 13 of roller 3 sides is and was connected the axle on the hat part 14 of the end that keeps roller 3 with pin 15 in the past the samely.

Shown in amplifying among Fig. 3 and Fig. 4, the driving shaft 7 that extends from drive unit 6 and the driven shaft 13 of roller 3 sides link through the sleeve 16 of heating resisting metal systems such as stainless steel.Particularly, near a side's of sleeve 16 end, squeeze into first connecting pin 17 with the mode that connects driving shaft 7 to diametric(al).In addition, near the opposing party's of sleeve 16 end, squeeze into second connecting pin 18 with the mode that connects driven shaft 13 to diametric(al).These first connecting pins 17 and second connecting pin 18 are right angle orientation each other, constitute so-called universal joint.

As stated, come off, used set bolt in the past, but in the utility model, tubular cover 19 is installed in the periphery of sleeve 16 in order to prevent these connecting pins 17,18.This tubular cover 19 is thin cylinders of heating resisting metal systems such as stainless steel, like Fig. 3, the periphery that is enclosed within sleeve 16 shown in Figure 4, prevents that connecting pin 17,18 from coming off.

This tubular cover 19 must be fixed on the periphery of sleeve 16 with suitable mechanism.Its fixing means limits especially, in this embodiment, encircles the 20 fixing both ends of the surface along the axis direction of roller of tubular cover 19 with C shape.C shape ring 20 is easily mounted on the sleeve 16, can prevent reliably that thus tubular cover 19 from moving to the axis direction of roller.

In sum, the roller kilns of the utility model are installed the two ends that tubular cover 19 limits connecting pin 17,18 in the periphery of sleeve 16, prevent that these connecting pins from coming off, and therefore do not need set bolt in the past.So, can cut down cost of manufacture not needing higher precision aspect the processing of the through hole of connecting pin 17,18.In addition, through abolishing set bolt, can cut down the working hour of the driven shaft 13 of the driving shaft 7 that links drive unit 6 sides and roller 3 sides significantly.

Claims (2)

1. roller kilns possess: many rollers that are configured in the inside of body of heater with preset space length; And the drive unit that is located at a side of body of heater and above-mentioned roller is rotated, it is characterized in that,

Comprise:

The sleeve of driven shaft that links driving shaft and the above-mentioned roll side of above-mentioned drive unit;

First connecting pin that connects to the diametric(al) of above-mentioned driving shaft from an end of above-mentioned sleeve;

Second connecting pin that connects to the diametric(al) of above-mentioned driving shaft from the other end of above-mentioned sleeve; And

Be located at the periphery of above-mentioned sleeve and prevent the tubular cover that above-mentioned connecting pin comes off.

2. roller kilns as claimed in claim 1 is characterized in that,

Be provided with the C shape ring that cooperates with above-mentioned sleeve at the axial two ends of above-mentioned tubular cover,

By above-mentioned C shape ring above-mentioned tubular cover is fixed on the above-mentioned sleeve.

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