CN2445884Y

CN2445884Y - Vacuum brick squeezing machine

Info

Publication number: CN2445884Y
Application number: CN 00221992
Authority: CN
Inventors: 林振武
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-09-28
Filing date: 2000-09-28
Publication date: 2001-09-05
Anticipated expiration: 2010-09-28

Abstract

The utility model relates to a vacuum brick squeezing machine, which is composed of a transmission mechanism, an upper-stage agitating mud-pressing mechanism, a lower-stage extrusion forming mechanism and a vacuum box. The utility model is characterized in that the transmission mechanism is gear driven double-stage speed reduction; an output shaft fixedly connected with a propulsion main shaft synchronously drives a counter gear through a gear idle, so as to drive an agitating shaft synchronously; the utility model is provided with an automatic compensation flexible seal, and adopts a clay cylinder bushing with composite structure. The utility model has the advantages of simple driving structure, small volume and good mud pressing effect, and can preserve vacuum level working precision for a long time.

Description

Vacuum extruder

The utility model relates to a kind of brick equipment.More particularly, be a kind of vacuum extruder.

Vacuum extruder stirs mud-pressing mechanism, extrusion molding mechanism of subordinate and vacuum tank by transmission mechanism, higher level and constitutes.Its stirring mud-pressing mechanism is made of a pair of helical stir axle that rotates in opposite directions, and extrusion molding mechanism is single screw propulsion main shaft.Treated pug is sent in higher level's agitator tank of vacuum extruder, is subjected to stirring, propelling and extruding after rounding knife chopping drops in the vacuum tank, in falling process, extracts air in the pug by vacuum extractor.In vacuum tank, along with the rotation of screw propulsion main shaft, pug is pushed in the mud cylinder, is squeezed into closely knit mud bar at last, is sent by the machine mouth, is cut into adobe through slitting, blank cutter again.

There are the following problems for vacuum extruder of the prior art:

1, because the drive mechanism complexity, bring bulky, manufacturing cost is high, inconvenient maintenance.Existing a kind of monoblock type decelerator by the power of clutch input, outputs to higher level's agitating device and subordinate's extrusion molding apparatus respectively after slowing down, power output shaft generally all needs three bearing supportings.Another kind is to adopt two decelerators, and first decelerator is used for slowing down, and the power after second decelerator will slow down is transported to higher level's agitating device and subordinate's extrusion molding apparatus respectively.

2,, and press the mud effect relatively poor because the asynchronous rotating speed of higher level's shaft and subordinate's cardan shaft not only is positioned at the pressure mud structural adjustment difficulty of vacuum tank.

3, the movable sealing that is positioned at screw propulsion main shaft bearing place can not keep desired vacuum for a long time because the filler wearing and tearing often need artificial the adjustment.

4, the mud cylinder liner in the extrusion molding mechanism is the cover body structure, and wear block can not guarantee operating accuracy.

The purpose of this utility model is to avoid above-mentioned weak point of the prior art, and the vacuum extruder that a kind of drive mechanism is simple, volume is little, pressure mud is effective, can keep vacuum and operating accuracy for a long time is provided.

The purpose of this utility model is achieved through the following technical solutions:

The utility model stirs mud-pressing mechanism, extrusion molding mechanism of subordinate and vacuum tank by transmission mechanism, higher level and constitutes, and described stirring mud-pressing mechanism is made of a pair of helical stir axle that rotates in opposite directions, and described extrusion molding mechanism is single screw propulsion main shaft.

Design feature of the present utility model is:

A, described transmission mechanism are between power input shaft and output shaft jackshaft to be set, constitute the gear drive double reduction, described output shaft directly connects with the screw propulsion main shaft, and pass through carrier gear drive synchronously to gear, it is a pair of helical stir axle to gear shaft, and each travelling gear is arranged in the same reduction box;

B, at the bearing place of described screw propulsion main shaft, automatic compensation flexible sealing is set, be seal with the flexible material, on the end face of described flexible sealing body, automatic compensation stage clip is set along axis direction.

C, the mud cylinder liner that is arranged in the extrusion molding mechanism of subordinate adopt composite construction, are provided with the lead-in groove vertically on its body madial wall, and lead-in is embedded in the lead-in groove.

Compared with the prior art, the utlity model has following advantage:

1, the utility model adopts monoblock type slowing-down structure and carrier gear, and all power transmission shafts all have only two bearing supportings, and structure is greatly simplified, and lubricating arrangement, low cost of manufacture, easy to maintenance needn't be set separately.

2, the gap of automatically causing after the compensate for wear of the hermetically-sealed construction in the utility model, its flexible filler and good resilience and heat conductivility are arranged is not easy to leak, and can keep condition of high vacuum degree for a long time.

3, the shaft in the utility model and to advance main shaft be to rotate synchronously, thereby soil compressing plate can extend in the screw reamer groove not only cooperates simply, easy for installation, and pressure mud is effective.

4, the utility model can make it have good wear resistance by the material of lead-in in the choose reasonable mud cylinder liner, keeps reasonable clearance, thereby guarantees its service behaviour.

Fig. 1 is the utility model general structure schematic diagram.

Fig. 2 is the utility model transmission mechanism schematic diagram.

Fig. 3 is Fig. 2 A-A profile.

Fig. 4 is Fig. 2 B-B profile.

Fig. 5 is Fig. 4 C-C profile.

Fig. 6 is the sealed structural representation at the utility model screw propulsion main shaft bearing place.

Fig. 7 is the utility model mud cylinder liner cross section structure schematic diagram.

By the following examples, in conjunction with the accompanying drawings the utility model is further described.

Embodiment:

Referring to Fig. 1, present embodiment stirs mud-pressing mechanism 2, extrusion molding mechanism 3 of subordinate and vacuum tank 4 by transmission mechanism 1, higher level and constitutes.Wherein, stir mud-pressing mechanism 2 and be made of a pair of helical stir axle 5 that rotates in opposite directions, extrusion molding mechanism is single screw propulsion main shaft 6.Vacuum means is changed to auxiliary equipment.

Referring to Fig. 2, Fig. 3, transmission mechanism is between power input shaft 7 and output shaft 8 jackshaft 9 to be set, and constitutes the gear drive double reduction, and output shaft 8 directly connects with screw propulsion main shaft 6, is used to drive screw propulsion main shaft 6.

Referring to Fig. 2, Fig. 4 and Fig. 5, output shaft 8 by carrier gear 10 drive synchronously be positioned at its top to gear 11, this wheel shaft to gear 11 connects with a pair of helical stir axle 5 respectively, is used to drive helical stir axle 5.Owing to adopted the drive mechanism of carrier gear, make the gear size of outputting power less, and all only two the bearings supportings of need of all power transmission shafts, each travelling gear is arranged in the same reduction box 20.

In the present embodiment, because screw propulsion main shaft 6 be to rotate synchronously with a pair of helical stir axle 5, thereby, in order to improve pressure mud effect, can will be positioned at the screw reamer groove that soil compressing plate 17 on the vacuum tank shaft extend into screw propulsion main shaft 6.Middle compared to existing technology soil compressing plate can only be positioned at the screw reamer periphery of screw propulsion main shaft, and present embodiment can improve significantly presses the mud effect.

Referring to Fig. 6, movable sealing at screw propulsion main shaft 6 bearing places, present embodiment has not only adopted labyrinth seal 18 and oil sealing sealing 19 in the prior art, simultaneously, automatic compensation flexible sealing is set, with the flexible material is seal 12, on the end face of flexible sealing body 12, along axis direction automatic compensation stage clip 13 is set.Flexible material as seal is graphite or carbon fiber filler, has self lubricity and good resilience and heat conductivility, can keep the condition of high vacuum degree of brick machine for a long time.

Referring to Fig. 7, in the present embodiment, the mud cylinder liner 14 that is arranged in the extrusion molding mechanism of subordinate 3 is composite construction, on its body 15 madial walls, be provided with the lead-in groove vertically, lead-in 16 is embedded in the lead-in groove, lead-in 16 can adopt cast stone or smart casting high-chromium alloy cast-iron material, has excellent abrasion resistance.

Claims

1, a kind of vacuum extruder, stirring mud-pressing mechanism (2), extrusion molding mechanism of subordinate (3) and vacuum tank (4) by transmission mechanism (1), higher level constitutes, described stirring mud-pressing mechanism (2) adopts a pair of helical stir axle (5) that rotates in opposite directions, described extrusion molding mechanism (3) adopts single screw propulsion main shaft (6), it is characterized in that:

A, described transmission mechanism (1) are between power input shaft (7) and output shaft (8) jackshaft (9) to be set, constitute the gear drive double reduction, described output shaft (8) directly connects with screw propulsion main shaft (6), and pass through carrier gear (10) drive synchronously to gear (11), it connects with a pair of helical stir axle (5) respectively gear shaft, and each travelling gear is arranged on same subtracting in the case (20);

B, at the bearing place of described screw propulsion main shaft (6), automatic compensation flexible sealing is set, be seal (12) with the flexible material, on the end face of described flexible sealing body (12), automatic compensation stage clip (13) is set along axis direction.

C, the mud cylinder liner (14) that is arranged in the extrusion molding mechanism of subordinate (3) are composite construction, are provided with the lead-in groove on its body (15) madial wall vertically, and lead-in (16) is embedded in the lead-in groove.

2, vacuum extruder according to claim 1 is characterized in that being positioned at the screw reamer groove that soil compressing plate (17) on the shaft (5) of vacuum tank (4) extend into screw propulsion main shaft (6).

3, vacuum extruder according to claim 1 is characterized in that the flexible material as seal (12) is graphite or carbon fiber filler.