CN211393062U - Shaft end sealing type positive pressure conveying discharger - Google Patents

Abstract

The utility model relates to an unloader is carried to axle head canned type malleation, wear to establish the pivot at casing middle part including casing and activity, the peripheral ring of pivot is equipped with impeller, its characterized in that: the symmetry is equipped with the axle head hole on the casing, the linkage has antifriction bearing between axle head hole and the pivot, the axle head hole is equipped with first sealing device, first sealing device is including the coupling that can switch on compressed gas, axle head hole lateral wall is equipped with the spliced eye, axle head hole inner wall is located spliced eye department ring and is equipped with the atmospheric pressure groove, pivot one end linkage has driving motor, the pivot is equipped with the shield of being connected with the casing can dismantle for the other end of linkage driving motor one end, the beneficial effects of the utility model are that: the shaft end sealing type positive pressure conveying discharger has the advantages of reliable sealing performance, prevention of pneumatic leakage and capability of stably discharging.

Description

Shaft end sealing type positive pressure conveying discharger

Technical Field

The utility model relates to a conveying equipment technical field, concretely relates to unloader is carried to axle head canned type malleation.

Background

The tripper is dust collecting equipment row ash, the main equipment of air supply and other equipment feeds, generally wear to establish the pivot at casing middle part by casing and activity, the pivot periphery ring is equipped with the impeller, the material of isostructure is applicable to the tripper of different grade type, adopt pneumatic conveying system to carry the material usually to granular material or powdery material, the tripper is carried the material, but pipeline of transmission strength is connected to the tripper bottom, pipeline one end linkage has the pneumatic means that can produce the strength, the material drops in the pipeline through the tripper and is blown away or atomize and arrive in the appointed area by the strength that pneumatic means produced, accomplish the transport, the tripper is regarded as pneumatic conveying system's part this moment, must have high requirement to the leakproofness.

The utility model discloses a "star type tripper and seal structure thereof for CN 203410968U", including a star type tripper and seal structure, the star type tripper includes end cover, rotor, is provided with seal structure on the end cover, and seal structure is equipped with the communicating oil filler neck with the seal chamber including seal, skeleton oil blanket, the sealed axle sleeve that contains the seal chamber on the seal body wall, can effectively avoid the wearing and tearing of skeleton oil blanket, changes seal structure's use, can obviously reduce the number of times of maintenance, reduces cost of maintenance.

The air inserts the mouth and installs between the skeleton oil blanket, in the use, at first because the existence of fluid, the lubrication degree between skeleton oil blanket and the seal has been improved, during operation state air inserts the mouth and inserts behind the air, the strength can lead to the skeleton oil blanket to take place the displacement change, lead to sealing performance to reduce, secondly because skeleton oil blanket structural shape is complicated, processing must have the error, the skeleton oil blanket is placed in the seal, can not laminate with pivot and seal lateral wall completely, so sealing performance is not good, furthermore, the strength of tripper bottom can be followed the impeller and is drawn into tripper upper end feed inlet position department in the use, can form the atmospheric pressure opposite with material whereabouts direction this moment, block up the material mouth easily, lead to the unable normal falling of material, seriously influence the work of unloading.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that not enough to above-mentioned prior art provides a but sealing performance is reliable, prevents that the strength from leaking, can stably carry out the unloading work a shaft end canned type malleation transport tripper.

In order to achieve the above purpose, the utility model provides a following technical scheme: a shaft end sealing type positive pressure conveying discharger comprises a shell and a rotating shaft movably arranged in the middle of the shell in a penetrating way, wherein an impeller is annularly arranged on the periphery of the rotating shaft, it is characterized in that shaft end holes which are in supporting linkage with two ends of the rotating shaft are symmetrically arranged on the shell, rolling bearings are in linkage between the shaft end holes and the rotating shaft, a first sealing device is arranged between the rolling bearing and the impeller at the shaft end hole, the first sealing device comprises a pipe joint capable of conducting compressed gas, the side wall of the shaft end hole is provided with an inserting hole for installing and positioning the pipe joint, the inserting hole inclines towards one side of the dustproof cover and forms an acute angle with the axis of the rotating shaft, the inner wall of the shaft end hole at the position of the inserting hole is annularly provided with a pneumatic groove which can be communicated with the pipe joint, one end of the rotating shaft is linked with a driving motor which can control the rotating speed of the impeller, the other end of the rotating shaft, which is opposite to one end of the linkage driving motor, is provided with a dustproof cover which is detachably connected with the shell.

Adopt above-mentioned technical scheme, tripper upper portion is connected the feed bin and is carried the material to the tripper bottom from tripper upper portion, gets into in the pneumatic conveying pipeline, sets up the coupling at pivot both ends this moment and discharges compressed air to the atmospheric pressure inslot, and the spliced eye inclines towards shield one side and is the acute angle with the pivot axis, and the purpose is relative with the strength that pneumatic conveying system produced, produces the butt-touch power, and the gas pressure that collects in the pressure tank forms the atmospheric pressure wall, guarantee leakproofness.

Foretell a shaft end canned type malleation is carried tripper can further set up as: the utility model discloses a shaft end hole, including the impeller, the impeller is kept away from to the shaft end hole inner wall and is equipped with second sealing device, second sealing device is including can be with the leading-in shaft end hole inboard of fluid and peg graft at the glib talker of shaft end hole inner wall, the shaft end hole inboard is located the glib position and is equipped with the oil guide ring, the oil guide ring is equipped with the inlet port to glib terminal surface, the oil leak hole that switches on with the inlet port is worn to be equipped with by oil guide ring inside, the oil guide ring both sides are equipped with a plurality of group.

By adopting the technical scheme, the framework oil seal is additionally arranged on the basis of pneumatic sealing, double sealing is carried out, the sealing performance is improved, the oil inlet hole in the oil guide ring can buffer the oil conveying process, then the oil leakage hole permeates the oil to the framework oil seal, the framework oil seal is lubricated, transitional friction in a sealing state is avoided, and the framework oil seal can be prevented from sliding by the retainer ring.

Foretell a shaft end canned type malleation is carried tripper can further set up as: the framework oil seal comprises a framework oil seal and is characterized in that an oil storage chamber with one open end is arranged in the middle of the framework oil seal, an oil passing hole capable of being communicated with the oil storage chamber is formed in the side wall of the framework oil seal, and oil seal supporting points capable of being in contact with a rotating shaft in a butting mode are arranged on two sides of the end face, close to the rotating shaft, of the.

By adopting the technical scheme, oil enters the oil storage chamber, and after the oil storage chamber is in a full state, the upper end surface and the lower end surface of the framework oil seal are expanded by utilizing the hydraulic pressure of the oil storage chamber and tightly attached to the inner wall of the shaft end hole and the rotating shaft, so that the sealing performance is guaranteed.

Foretell a shaft end canned type malleation is carried tripper can further set up as: a trapezoid groove is arranged between the oil seal supporting points.

By adopting the technical scheme, the trapezoidal groove can collect oil, so that the phenomenon that the oil transversely slides between the framework oil seal and the rotating shaft to cause the framework oil seal to slip is avoided, the oil seal fulcrum can be subjected to the pressure of the oil in the oil storage chamber and the pressure of the oil in the trapezoidal groove, and the pressure of the two directions causes the oil seal fulcrum to tightly abut against the rotating shaft, so that sealing is realized, and the sealing performance is further improved.

Foretell a shaft end canned type malleation is carried tripper can further set up as: the lateral wall of the shell is provided with a plurality of groups of exhaust holes.

Adopt above-mentioned technical scheme, the tripper is worked under the air conveying state, and the impeller rotates to the tripper bottom after, can be drawn into partial gas to the feed inlet position, and through setting up the exhaust hole, can discharge these gases, avoids forming atmospheric pressure on tripper upper portion and plugs up the material, helps the stable normal work of tripper.

Foretell a shaft end canned type malleation is carried tripper can further set up as: the inner wall of the shaft end hole is provided with a plurality of groups of labyrinth grooves with uniform intervals at one side of the air pressure groove close to the impeller, and a ventilation track capable of conducting gas is arranged between the labyrinth grooves and the air pressure groove.

Adopt above-mentioned technical scheme, the labyrinth groove can be collected and come from pneumatic conveying system's gas, has the compressed gas that can collect the coupling and carry, and two kinds of opposite gases carry out the power at the labyrinth inslot earlier and offset each other, reduce the gas that gets into pressure tank and skeleton oil blanket, and the effect in labyrinth groove is equivalent to a barrier, facilitates for subsequent sealed work, further promotes holistic sealing performance.

The present invention will be described in further detail with reference to the accompanying drawings and examples.

Drawings

Fig. 1 is a schematic front sectional view of the present invention;

FIG. 2 is a schematic side view of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 1 at A;

fig. 4 is a partially enlarged schematic view of a portion B in fig. 1.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1 to 3, a shaft end sealing type positive pressure conveying discharger comprises a housing 1 and a rotating shaft 2 movably penetrating through the middle of the housing 1, wherein an impeller 3 is annularly arranged on the periphery of the rotating shaft 2, shaft end holes 11 which are in supporting linkage with two ends of the rotating shaft 2 are symmetrically arranged on the housing 1, a rolling bearing 4 is in linkage between the shaft end hole 11 and the rotating shaft 2, a first sealing device is arranged between the rolling bearing 4 and the impeller 3 and is positioned in the shaft end hole 11, the first sealing device comprises a pipe joint 5 which can conduct compressed gas, an insertion hole 12 which can be used for installing and positioning the pipe joint 5 is arranged on the side wall of the shaft end hole 11, the insertion hole 12 inclines towards one side of a dust cover 6 and forms an angle of 70 degrees with the axis of the rotating shaft 2, a pneumatic groove 13 which can be conducted with the pipe joint 5 is annularly arranged on the inner wall of the shaft end hole 11 and is positioned in the insertion hole, the other end of the rotating shaft 2, which is opposite to one end of the linkage driving motor 7, is provided with a dustproof cover 6 detachably connected with the shell 1. The utility model discloses a compressor impeller, including the impeller 3, the impeller is kept away from to the shaft end hole 11, the shaft end hole 11 inner wall is located pneumatic groove 13 and is equipped with second sealing device, second sealing device is including can leading into the inboard glib talker 8 that just pegs graft at shaft end hole 11 inner wall of shaft end hole 11 with fluid, 11 inboard positions in the glib 8 positions of shaft end hole are equipped with leads oil ring 9, it is equipped with inlet port 91 to lead oil ring 9 to be equipped with towards glib 8 terminal surfaces, lead oil ring 9 middle part and wear to be equipped with the oil leak hole 92 that switches on with inlet port 91, it is equipped with 1 group's skeleton oil blanket 10 that is located shaft end hole 11 to lead oil ring 9 left side, it is equipped with 2 group's skeleton oil blanket 10 that are located shaft end hole 11 to. The middle part of the framework oil seal 10 is provided with an oil storage chamber 101 with an open end, the side wall of the framework oil seal 10 is provided with an oil passing hole 102 which can be communicated with the oil storage chamber 101, two sides of the end surface of the framework oil seal 10 close to the rotating shaft 2 are provided with oil seal fulcrums 103 which can be in contact with the rotating shaft 2 in an abutting mode, and a trapezoidal groove 104 is formed between the oil seal fulcrums 103. The side wall of the shell 1 is provided with 2 groups of exhaust holes 14. The inner wall of the shaft end hole 11 is provided with 3 groups of labyrinth grooves 15 with uniform intervals at one side of the gas pressure groove 13 close to the impeller 3, and a ventilation track 16 capable of conducting gas is arranged between the labyrinth grooves 15 and the gas pressure groove 13.

Claims (6)

1. The utility model provides a tripper is carried to axle head canned type malleation, includes that casing and activity wear to establish the pivot at casing middle part, and the peripheral ring of pivot is equipped with impeller, its characterized in that: the impeller comprises a shell, and is characterized in that shaft end holes which are in supporting linkage with two ends of a rotating shaft are symmetrically arranged on the shell, a rolling bearing is in linkage between the shaft end holes and the rotating shaft, a first sealing device is arranged between the rolling bearing and an impeller and positioned in the shaft end holes, the first sealing device comprises a pipe joint capable of conducting compressed gas, an insertion hole capable of allowing the pipe joint to be installed and positioned is formed in the side wall of each shaft end hole, a pneumatic groove capable of being communicated with the pipe joint is formed in the position, of the insertion hole, the inner wall of each shaft end hole is annularly provided with a pneumatic groove, the pneumatic groove can be communicated with the pipe joint, one end of the rotating shaft is linked with a driving motor capable of controlling the rotating speed.

2. The shaft end seal type positive pressure conveying discharger according to claim 1, wherein: the utility model discloses a shaft end hole, including the impeller, the impeller is kept away from to the shaft end hole inner wall and is equipped with second sealing device, second sealing device is including can be with the leading-in shaft end hole inboard of fluid and peg graft at the glib talker of shaft end hole inner wall, the shaft end hole inboard is located the glib position and is equipped with the oil guide ring, the oil guide ring is equipped with the inlet port to glib terminal surface, the oil leak hole that switches on with the inlet port is worn to be equipped with by oil guide ring inside, the oil guide ring both sides are equipped with a plurality of group.

3. The shaft end seal type positive pressure conveying discharger according to claim 2, wherein: the framework oil seal comprises a framework oil seal and is characterized in that an oil storage chamber with one open end is arranged in the middle of the framework oil seal, an oil passing hole capable of being communicated with the oil storage chamber is formed in the side wall of the framework oil seal, and oil seal supporting points capable of being in contact with a rotating shaft in a butting mode are arranged on two sides of the end face, close to the rotating shaft, of the.

4. The shaft end seal type positive pressure conveying discharger according to claim 3, wherein: a trapezoid groove is arranged between the oil seal supporting points.

5. The shaft end seal type positive pressure conveying discharger according to claim 1, wherein: the lateral wall of the shell is provided with a plurality of groups of exhaust holes.

6. The shaft end seal type positive pressure conveying discharger according to claim 1, wherein: the inner wall of the shaft end hole is provided with a plurality of groups of labyrinth grooves with uniform intervals at one side of the air pressure groove close to the impeller, and a ventilation track capable of conducting gas is arranged between the labyrinth grooves and the air pressure groove.

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