CN202543233U

CN202543233U - Fork arm type bell-less distributor of blast furnace

Info

Publication number: CN202543233U
Application number: CN2011204455313U
Authority: CN
Inventors: 史振海; 李玉清
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-11-11
Filing date: 2011-11-11
Publication date: 2012-11-21
Anticipated expiration: 2021-11-11

Abstract

The utility model discloses a fork arm type bell-less distributor of a blast furnace. The distributor comprises a distributor box, a top cover, a water cooling disk, an upper rotary support, a rotary sleeve, a supporting ring, a lower rotary support, trunnions, trunnion cranks, a chute bracket, a chute, a venturi and a horizontal transmission device for controlling an angle beta of the chute, wherein the lower part of the supporting ring is connected with a fixed ring of the lower rotary support; two sides of the chute bracket are respectively hinged with the lower end of the rotary sleeve through the two trunnions; the key improvement is that the distributor comprises a supporting ring tilting prevention mechanism and a supporting ring driving device for driving the supporting ring to move up and down; the supporting ring tilting prevention mechanism comprises a rigid driving arm and a rigid balance arm; the distributor has the advantages that the supporting ring is symmetrically driven through two points by a hydraulic cylinder without radial component force; and the tilting prevention mechanism can effectively prevent the supporting ring from tilting towards all directions in the process of moving up and down.

Description

Fork arm type equal bell-less blast furnace distributor

Technical field

The utility model has related to a kind of blast furnace support equipment, particularly a kind of fork arm type equal bell-less blast furnace distributor.

Background technology

Blast-furnace channel distributor is the key equipment that blast furnace adds charging; Because it has the flexible and uniform characteristics of cloth, obtained using very widely, and the flexible stable motion of chute be channel distributor can be flexibly and the key of uniform distribution; The position of general chute is controlled through its α angle and β angle with respect to the distributor axis; The α angle is the angle between chute and the distributor axis, and in order to reach the uniform purpose of cloth, chute need carry out the motion of both direction in the cloth process; A kind of motion is the swing that changes the angle between itself and the distributor casing axis; Purpose is to change the α angle of chute, and a kind of in addition is to drive the circumferential motion that chute produces around the distributor axis by means of drive unit, and purpose is to change the β angle of chute; The α angle of chute generally is to do up and down straight reciprocating motion through guide wheel along guide rail by backing ring and turning down supporting to realize; Because the backing ring diameter is bigger; In normal use, the suffered power from chute of backing ring is partial load, and stress point rotates around the β angle of its axis with chute synchronously; So; The control of backing ring hoisting appliance kinematic accuracy is the key factor that directly influences chute α angular accuracy, and also being influences the distributor key factor in work-ing life, and the backing ring lifting mechanism that adopts at present mainly contains following several kinds:

1) rope hoisting type

Its primary structure is to promote backing ring by steel cable, only with unidirectional reinforcing, and the descending dependence self gravitation of backing ring, safety is low; The backing ring location relies on the many groups roller set on its outer ring to realize with the guide rail that is arranged on the distributor cabinet wall; Because every group of roller set comprises the vertically disposed roller of at least two covers, adjustment is complicated, is difficult for also guaranteeing that the geometric centre of turning down bearing overlaps with rotation center; Backing ring rocks obviously during operation; Backing ring is shorter work-ing life, and safety is low, directly influences the blast furnace production stability.

2) single armed double link control type

This mechanism is by the lifting of single armed double link control backing ring; Can realize two-way reinforcing; But transmission chain is longer, and towing loop has lateral component to produce during operation, and the backing ring location is same to rely on the many groups roller set on its outer ring to realize with the guide rail that is arranged on the distributor cabinet wall; Because every group of roller set remains by two groups of rollers of vertical setting and forms, the adjustment difficulty, and also the lateral component during operation makes the backing ring geometric centre be difficult for overlapping with the rotation center of turning down supporting, generation off-centre, and backing ring rocks obviously.

3) both arms four connecting rod control types

This mechanism adopts two groups of holohedry four link type α angle driving mechanisms; Have mechanical interlock, synchronized drive, the suffered radial component of towing loop and a series of outstanding advantages such as can offset fully, overcome one group of double-connecting rod type α angle driving mechanism to turning down supporting and radial component that backing ring brought thereof, the location of turning down supporting and backing ring thereof is made up of four connecting rods and one group of guide wheel and guide rail jointly; Guide wheel is few; Adjustment is easy, but because the transmission chain that the α angle drives is oversize, progressive error is wayward; It is still apparent in view to cause distributor when operation backing ring to rock, reliability decrease.

4) three hydro-cylinder interlock control types

The maximum problem of this mechanism be three hydro-cylinders be not easy synchronously realize, complex structure, the trouble spot is more, in case asynchronous interlock appears in three hydro-cylinders, can not repair often the infringement of distributor.

5) Luxembourg PW type

The α angle driving mechanism of Luxembourg PW type furnace top distributing gear is made up of a pair of open gear pair and a pair of turbine and worm pair; Compact construction, stable performance, but very high to the requirement of material and complete processing thereof; The expense of spare part and maintenance is also extremely high; Belong to the high device type of better performances price, cost performance is not high, is difficult for promoting.

The utility model content

The utility model technical problem to be solved provides that a kind of transmission chain is short, simple in structure, low cost of manufacture and do not have the backing ring lifting mechanism of lateral component, improves the fork arm type equal bell-less blast furnace distributor of its work-ing life and stability.

The design concept of the utility model is such: utilize the anti-tilting mechanism of the mutual vertically disposed rigidity yoke of two covers as backing ring; It mainly acts on is to prevent that backing ring from fascinating because of suffered partial load produces in the process of moving up and down; Anti-tilting mechanism of backing ring and backing ring drive unit cooperate the accurate motion of accomplishing backing ring; Optimized scheme is to adopt hydro-cylinder as the backing ring drive unit in the utility model; And drive point is arranged on the rigidity actuating arm; When adopting single cylinder, in the regime of elastic deformation of rigidity actuating arm in its permission this motivating force is decomposed into two automatically and drives component, and drive (promote or push away down) and the symmetrical both sides guide wheel shaft in backing ring center respectively, thereby two point symmetries of accomplishing backing ring promote; Under the cooperation of rigid balancing arm, can effectively prevent simultaneously the phenomenon of fascinating of all directions that backing ring very easily produces in operational process; Rigidity actuating arm and rigid balancing arm all are regarded as stiffener in the mechanism that the utility model disclosed, its recoverable deformation is negligible in whole backing ring running precision claimed range, and rigidity actuating arm and rigid balancing arm are the right-angled intersection setting; Make the degree of freedom that backing ring only moves up and down with respect to the distributor casing; And its aft mounted chute structure allows its point of suppon to move up and down with backing ring and produces certain displacement along the chute direction in the process, can simplify whole distributor structure to a certain extent, reduces installation difficulty;

When adopting twin-tub; Two hydro-cylinders are hinged with rigidity actuating arm both sides fork end respectively; On the one hand as the backing ring drive unit; On the one hand the rigidity actuating arm is simultaneously hinged with the piston rod attachment of two cover hydro-cylinders in addition, can realize the mechanical chain between the two cover hydro-cylinders, damage components downstream when preventing to break down because of one of them hydro-cylinder; Certainly the backing ring drive unit in the utility model also can adopt technical scheme of the prior art; Such as single armed double link type or both arms four link type etc.; Can prevent effectively that all backing ring from fascinating, can also the backing ring tilting mechanism disclosed in the utility model be used with existing distributor separately, not change under the integrally-built prerequisite of distributor; Effectively the control backing ring amount of fascinating reduces the existing installation improvement cost.

For solving the problems of the technologies described above; The technical scheme that the utility model adopts is: a kind of fork arm type equal bell-less blast furnace distributor comprises distributor casing, top cover, aqueous cold plate, last rotating bearing, turnbarrel, backing ring, turning down supporting, gudgeon, gudgeon crank, chute carriage, chute, trunnion and the horizontal transmission mechanism that is used to control chute β angle; Said backing ring bottom is connected with the fixed ring of said turning down supporting; Said chute carriage both sides are hinged by means of two gudgeons with said turnbarrel lower end respectively; Said two gudgeons pass respectively between the rotation circle of turnbarrel setting and the outside one end and turning down supporting and are provided with chute α angle topworks; Be provided with guiding mechanism between the said backing ring outside and the distributor casing; Its key improvements is: also comprise the anti-tilting mechanism of backing ring and be used to drive the backing ring drive unit that backing ring moves up and down, the anti-tilting mechanism of said backing ring comprises rigidity actuating arm and rigid balancing arm;

Rigidity actuating arm and rigid balancing arm are the right-angled intersection setting in the horizontal direction; The end support of said rigidity actuating arm and rigid balancing arm is unsteady supporting structure; Said unsteady supporting structure be the tail end at rigidity actuating arm and rigid balancing arm be provided with open or sealing chute and chute respectively be fixed at said distributor wall box on horizontal supporting shaft be connected; Said rigidity actuating arm and rigid balancing arm head end are hinged with backing ring respectively.

The above guide deflection sheave assembly of quadruplet that is equipped with vertical guide that said guiding mechanism comprises that hoop is distributed in that four above vertical guide and hoop on the said distributor cabinet wall be distributed in the said backing ring outside.

Said guide deflection sheave assembly vertically is provided with at least one group of guide deflection sheave; Said rigidity actuating arm and rigid balancing arm head end both sides respectively with relative two cover guide deflection sheave assemblies in said vertical guide supporting guide deflection sheave coaxial hinged.

Said guide deflection sheave assembly vertically be provided with at least one group with the supporting guide deflection sheave of said vertical guide; Said rigidity actuating arm and rigid balancing arm head end both sides are hinged with said backing ring respectively.

Said backing ring drive unit is a fluid pressure drive device, comprises at least one cover hydro-cylinder that vertically is fixed on the said distributor casing top cover in its structure.

Said hydro-cylinder is a cover, and its cylinder body head end is fixedly connected with said distributor box cover, and it is interior and hinged with said rigidity actuating arm one side yoke front portion that its piston rod stretches into the distributor casing.

The structure identical two forks of said rigidity actuating arm head end one side fork for laterally arranging, its outside fork is hinged with the wheel shaft of said guide deflection sheave; The axis of the axis of the hinged and hinge of the inboard fork of said piston rod end and its and the wheel shaft of said guide deflection sheave is positioned at same vertical plane.

Said hydro-cylinder is a cover, and its cylinder body head end is fixedly connected with said distributor box cover, and it is interior and hinged with said backing ring that its piston rod stretches into the distributor casing.

Said hydro-cylinder is two covers, and its cylinder body head end all is fixedly connected with said distributor casing top cover, and the corresponding piston rod of two cover hydro-cylinders all stretches in the distributor casing, and piston rod is hinged with yoke front portion, said rigidity actuating arm both sides respectively.

Said hydro-cylinder is two covers, and its cylinder body head end all is fixedly connected with said distributor casing top cover, and it is interior and hinged with said backing ring respectively that the corresponding piston rod of two cover hydro-cylinders all stretches into the distributor casing.

Said backing ring drive unit is electronic many revolution screw type performer, comprise in its structure vertically be located at the intravital leading screw of distributor case, with feed screw nut and electronic many revolution screw type performer of the supporting setting of leading screw; Said feed screw nut is fixedly connected with backing ring.

Said chute α angle topworks comprises two cover gudgeon crank and special-shaped connecting rods; Said two cover gudgeon cranks are positioned at the turnbarrel outboard end with two gudgeons respectively and are fixedly connected; Said special-shaped connecting rod lower end is hinged with the tail end of said two cover gudgeon cranks respectively, the upper end is hinged with the left engaging lug and the right engaging lug difference that are fixed on the turning down supporting rotation circle.

Said chute α angle topworks comprises two cover gudgeon cranks, is located at the crank tail wheel of gudgeon crank tail end and is symmetrically set in two cover chutes on the said turning down supporting rotation circle; Said crank tail wheel and the chimeric setting of described two cover chutes.

Adopt the beneficial effect that technique scheme produced to be: the anti-tilting mechanism of the employed backing ring of the utility model mainly is made up of the rigidity yoke of two similar H shapes of profile or Y shape.Two rigidity yokes are cross-shaped layout; Can effectively prevent the phenomenon of fascinating that backing ring all might produce on any direction like this in horizontal plane; The head end both sides fork of each rigidity yoke is hinged with the wheel shaft of the two opposite groups guide deflection sheave assembly that is distributed in backing ring circumferential direction fourth class office respectively, can also be directly that rigidity yoke head end and backing ring is hinged, and key is to constitute cross-shaped setting; Its back vent part then respectively be distributed in the distributor sidewall on horizontal supporting shaft be connected; The back vent support section is provided with chute, and chute can be open, also can seal; The swing-bar mechanism that can also use back vent and fork to be hinged is connected with the horizontal supporting axle, and purpose is to make its point of suppon allow certain transversal displacement; In concrete application process, use single hydro-cylinder or two hydro-cylinders simultaneously as the backing ring drive unit; When adopting single hydro-cylinder, the end of the piston rod end of hydro-cylinder and rigidity actuating arm head end one side fork is hinged, jointed shaft and the coaxial setting of the wheel shaft of guide deflection sheave; Guarantee that motivating force and load reactive force are positioned at same vertical plane; And for the motivating force between the fork of balanced rigidity actuating arm head end both sides, one of which side fork is made as two forks, piston rod is hinged with the inboard fork of two forks; When piston rod the time to the rigidity actuating arm application of force; The rigidity actuating arm can be with driving force distributed at its two points of load application, because the rigidity actuating arm is regarded as rigid body, and motivating force and load reactive force are positioned at same vertical plane; So backing ring can not produce radial component in the driving process, guarantee backing ring stability of motion; The effect that is the rigid balancing arm of right-angled intersection setting with the rigidity actuating arm is to keep backing ring the fascinating of two other direction in moving process; So the distributor that the utility model disclosed can be made as the guide deflection sheave assembly in the guiding mechanism one group of guide wheel; Only play the guiding role; Simplified the distributor one-piece construction, reduced production costs greatly;

When adopting two hydro-cylinders as the backing ring driving mechanism, just formed the backing ring lifting mechanism of being with mechanical chain and not having lateral component, have advantages such as transmission chain is short, progressive error is little, stability is high, long service life; Two rigidity yokes are articulated as one through four guide wheel shafts and backing ring; Two hydro-cylinders drive the symmetrical both sides guide wheel shaft of rigidity yoke and backing ring center respectively simultaneously; Thereby two point symmetries of accomplishing backing ring promote; Under the cooperation of rigid balancing arm, just can effectively prevent simultaneously the phenomenon of fascinating of all directions that backing ring very easily produces in operational process, the stability of backing ring can significantly improve; Two hydro-cylinders are realized mechanical chain through the rigidity yoke, and when abnormal conditions such as asynchronous appearred in two hydro-cylinders, the rigidity yoke can effectively be protected the safety of backing ring and downstream component thereof under the ultimate load that allows.

Description of drawings

Fig. 1 is the full sectional view of the utility model embodiment 1 front view;

Fig. 2 is the utility model embodiment 1 vertical view;

Fig. 3 is that the A-A of Fig. 1 is to view;

Fig. 4 is the full sectional view of the utility model embodiment 1 left view;

Fig. 5 is the front view (partial cutaway) of embodiment 1 rigidity actuating arm;

Fig. 6 is the vertical view of embodiment 1 rigidity actuating arm;

Fig. 7 is the front view (partial cutaway) of embodiment 1 rigid balancing arm;

Fig. 8 is the vertical view of embodiment 1 rigid balancing arm;

Fig. 9 is the full sectional view of the utility model embodiment 2 front views;

Figure 10 is the utility model embodiment 2 vertical views;

Figure 11 is that the A-A of Fig. 1 is to view;

Figure 12 is the full sectional view of the utility model embodiment 2 left views;

Figure 13 is the front view (partial cutaway) of embodiment 2 rigidity actuating arms;

Figure 14 is the vertical view of embodiment 2 rigidity actuating arms;

Figure 15 is the front view (partial cutaway) of embodiment 2 rigid balancing arms;

Figure 16 is the vertical view of embodiment 2 rigid balancing arms;

Figure 17 is other a kind of backing ring driving device structure synoptic diagram in the utility model;

In the accompanying drawings: 1, chute; 2, lip ring; 3, aqueous cold plate; 4, distributor casing; 5, airtight case lid; 6, turnbarrel; 7, turning down supporting; 8, backing ring; 9, top cover; 10, go up rotating bearing; 11, hydro-cylinder bearing; 12, hydro-cylinder; 13, trunnion; 14, rigid balancing arm; 15, special-shaped connecting rod; 16, guide deflection sheave; 17, β angle transmission; 18, cycloidal planetary gear speed reducer; 19, gudgeon; 20, chute carriage; 21, rigidity actuating arm; 22, oil bearing; 23, gudgeon crank; 24, support set; 25, bolster; 26, supporting box; 27, left engaging lug; 28, right engaging lug; 29, guide rail; 30, leading screw; 31, feed screw nut.

Embodiment

Embodiment 1: a kind of fork arm type equal bell-less blast furnace distributor shown in Fig. 1 to 8 comprises distributor casing 4, top cover 9, aqueous cold plate 3, last rotating bearing 10, turnbarrel 6, backing ring 8, turning down supporting 7, gudgeon 19, gudgeon crank 23, chute carriage 20, chute 1, trunnion 13 and the horizontal transmission mechanism 17 that is used to control chute β angle; Aqueous cold plate is fixed on the distributor lower box, and the outer ring of last rotating bearing is fixedly connected turnbarrel, the medullary ray of turnbarrel and the central lines of blast furnace; Said backing ring 8 bottoms are fixedly connected with the outer ring of said turning down supporting; The turnbarrel bottom is arranged with the gudgeon cover, wears two gudgeons, two gudgeon left-right symmetric in the gudgeon cover; Said chute carriage 20 both sides are fixedly connected with the two ends that two gudgeons are positioned at turnbarrel respectively, and chute is hung on the chute carriage, and the chute carriage is positioned at turnbarrel, and its both sides are fixedly connected with the two ends that two gudgeons are positioned at turnbarrel; Turnbarrel arranged outside chute α angle topworks, its both sides connect respectively at said two gudgeon tail ends; The chute α angle topworks that uses in the utility model comprises two cover gudgeon cranks 23 and special-shaped connecting rod 15; Said two cover gudgeon cranks 23 are positioned at turnbarrel 6 outsides one end with two gudgeons respectively and are fixedly connected; Both sides, said special-shaped connecting rod 15 lower end are hinged with said two cover gudgeon cranks, 23 tail ends respectively; The both sides, upper end are hinged respectively with the left engaging lug 27 and the right engaging lug 28 that are fixed on the turning down supporting 7 rotation circles; Moving up and down of backing ring changes into rotatablely moving of two gudgeons through special-shaped connecting rod and gudgeon crank, and the rotation of two gudgeons drives the swing of chute carriage; The structure that chute α angle topworks can also adopt crank tail wheel and chute to match, its detailed structure can be 200510084403.X referring to the patent No., patent name is the patent of " blast-furnace channel distributor "; Be provided with guiding mechanism between said backing ring 8 outsides and distributor casing 4 inwalls; Said guiding mechanism is not the guiding mechanism on the simple meaning in the prior art; It mainly contains two effects; Effect is to be the backing ring guiding that moves up and down; The another one effect is to adopt double guide wheel up and down, be used for preventing that backing ring from axially fascinating in the generation of translational motion process, but its adjustment process is more loaded down with trivial details; In the utility model, only utilize its guide effect, so the guiding mechanism in the utility model comprises that hoop is distributed in four vertical guide and hoop on said distributor casing 4 inwalls and is uniformly distributed with the quadruplet guide deflection sheave assembly that is equipped with four vertical guide with the said backing ring outside; Said guide deflection sheave assembly vertically is provided with one group of guide deflection sheave 16.

The key improvements of the utility model is anti-tilting mechanism of backing ring and backing ring drive unit; Existing backing ring drives and mainly comprises wireline type, single armed double link control type, both arms four connecting rod control types and three cylinders interlock control type; But in use all there is different problems to occur; Be raising distributor operation stability, the supporting anti-tilting mechanism of backing ring that is provided with on the backing ring in the utility model, its structure comprises rigidity actuating arm 21 and rigid balancing arm 14; And adopt the separate unit hydro-cylinder in the present embodiment as the backing ring drive unit; Certainly in concrete application process, can also adopt screw type drive unit (shown in figure 17); The screw type drive unit comprises vertically to be located at the intravital leading screw of distributor case and to be fixed at the feed screw nut on the backing ring; Also comprise the lead-screw driving device that is fixed on the said distributor top cover; The effect of the drive unit in the utility model only is that driving backing ring moves up and down, and then drives chute α angle topworks, accomplishes the variation at chute α angle.

Said rigidity actuating arm 21 is approximate H type or Y type fork arm (referring to Fig. 5-8) with rigid balancing arm 14, and rigidity actuating arm 21 is the right-angled intersection setting in the horizontal direction with rigid balancing arm 14; Said rigidity actuating arm 21 and rigid balancing arm 14 tail ends be equipped with chute and chute respectively be fixed at said distributor wall box on horizontal supporting shaft 25 be connected; Said rigidity actuating arm 21 is hinged with the guiding mechanism of being located at backing ring 8 outsides respectively with rigid balancing arm 14 head ends; Rigidity actuating arm 21 can also be hinged with backing ring 8 respectively with rigid balancing arm 14 head ends; Rigidity actuating arm and rigid balancing arm head end both sides fork can also be hinged with backing ring respectively; Said hydro-cylinder 12 vertically is fixed on the said distributor casing top cover 9 and it stretches into the intravital piston rod end of distributor case and said rigidity actuating arm 21 is hinged; The piston rod end can also through piston rod attachment directly and the backing ring arbitrfary point hinged; Be regarded as whole towing loop translation device with rigidity actuating arm, rigid balancing arm and backing ring this moment, also can realize anti-function of fascinating.

The structure identical two forks of said rigidity actuating arm 21 head ends one side fork for laterally arranging, its outside fork is hinged with the wheel shaft of said guide deflection sheave 16; Said piston rod end is through piston rod attachment and its inboard fork is hinged and wheel shaft hinge and said guide deflection sheave 16 is positioned at same axis; Rigidity actuating arm head end both sides fork can also be arranged to symmetric single tine; The piston rod of hydro-cylinder is hinged with the end of the fork of a side wherein through piston rod attachment; The rigidity actuating arm of this moment is identical with the structure of rigid balancing arm; The piston rod end of hydro-cylinder almost is the same with the hinged effect that produces of either side fork end of rigidity actuating arm or rigid balancing arm, that is to say that rigidity actuating arm and rigid balancing arm can exchange.

Rigidity actuating arm 21 head ends one side adopts two fork structures, and outside fork is hinged with guide deflection sheave 16 wheel shafts of backing ring 8 correspondence positions, and the piston rod end is hinged with inboard fork through piston rod attachment; And the piston rod axis still is positioned at same vertical plane with the guide deflection sheave wheel shaft, and in moving process, the power that piston rod is applied to inboard fork passes to an outside fork and an other side through the rigidity actuating arm; And cooperate the driving that realizes backing ring with rigid balancing arm 14; Simplify the structure of backing ring driving mechanism on the one hand, the convenient installation, and need not adjust in the operational process; Can not only increase the service life, can also improve mechanism's operation stability; The up and-down movement of backing ring 8 becomes the vertical lines motion into chute around the rotatablely moving of two gudgeons through special-shaped connecting rod and gudgeon crank, realizes the accurate change at chute α angle, guarantees the homogeneity and the handiness that feed intake.

Two H shape rigidity yokes are cross-shaped layout; Can effectively prevent the phenomenon of fascinating that backing ring all might produce on any direction like this in horizontal plane; The head end both sides fork of each H shape rigidity yoke is hinged with the wheel shaft of the two opposite groups guide deflection sheave assembly that is distributed in backing ring circumferential direction fourth class office respectively; Its back vent part then respectively be distributed in the distributor sidewall on horizontal supporting shaft is connected, it has certain horizontal mobile space the point of suppon permission; In concrete application process, use single hydro-cylinder as the backing ring drive unit simultaneously, the end of the piston rod end of hydro-cylinder and rigidity actuating arm head end one side fork is hinged, jointed shaft and the coaxial setting of the wheel shaft of guide deflection sheave; Guarantee that motivating force and load are positioned at same vertical plane; And for the motivating force between the fork of balanced rigidity actuating arm head end both sides, one of which side fork is made as two forks, piston rod is hinged with the inboard fork of two forks; When piston rod the time to the rigidity actuating arm application of force; The rigidity actuating arm can be with driving force distributed at its two points of load application, owing to the rigidity actuating arm is regarded as rigid body, so in the driving process, can not produce radial component to towing loop; The effect that is the rigid balancing arm of right-angled intersection setting with the rigidity actuating arm is to keep backing ring the fascinating of two other direction in moving process; There are two cover H shape yokes can prevent effectively that backing ring from fascinating,, only play the guiding role so can the guide deflection sheave assembly in the guiding mechanism be made as one group of guide wheel.

Embodiment 2: shown in Fig. 9-16; Difference between present embodiment and the embodiment 1 is the backing ring drive unit; Backing ring drive unit among the embodiment 1 is provided with a cover hydro-cylinder; Two cover hydro-cylinders are set in the present embodiment, said two cover hydro-cylinders 12 all vertically be fixed on the said distributor casing top cover 9 and its to stretch into the intravital piston rod end of distributor case hinged with said rigidity actuating arm 21 respectively; The main effect of rigidity actuating arm and rigid balancing arm is to prevent that backing ring from fascinating in the process of moving up and down; In actual application, can two cover rigidity yokes be treated as anti-tilting mechanism; Can apply it in the existing distributor; Itself and other structure distributors such as existing single armed double-connecting rod type or both arms four link type are used, eliminate the phenomenon of fascinating in the backing ring moving process; In concrete application process; If when a cover hydro-cylinder breaks down; The rigidity actuating arm can form mechanical lock, and when abnormal conditions such as asynchronous appearred in two hydro-cylinders, the rigidity yoke can effectively be protected the safety of backing ring and downstream component thereof under the ultimate load that allows.

The effect of the anti-tilting mechanism of the backing ring in the utility model is and the guiding mechanism stability that the back realizes that backing ring moves up and down that matches; Simplify the complete installation structure; Anti-tilting mechanism also can be used for the anti-transformation of fascinating of existing distributor; Promptly on the basis of the backing ring driving mechanism that does not change existing distributor, set up two rigidity yokes that are cross-shaped layout, though the distributor that one-piece construction does not have the utility model to disclose is simple in structure; The transformation of using it for existing installation still can bring very big economic benefit, such as the anti-tilting mechanism of this kind being installed on single armed double link or the both arms four link type distributors.

Claims

1. a fork arm type equal bell-less blast furnace distributor comprises distributor casing (4), top cover (9), aqueous cold plate (3), last rotating bearing (10), turnbarrel (6), backing ring (8), turning down supporting (7), gudgeon (19), gudgeon crank (23), chute carriage (20), chute (1), trunnion (13) and the horizontal transmission mechanism (17) that is used to control chute β angle; Said backing ring (8) bottom is connected with the fixed ring of said turning down supporting; Said chute carriage (20) both sides are hinged by means of two gudgeons with said turnbarrel (6) lower end respectively; Said two gudgeons pass respectively between the rotation circle of turnbarrel setting and the outside one end and turning down supporting and are provided with chute α angle topworks; Be provided with guiding mechanism between said backing ring (8) outside and the distributor casing (4); It is characterized in that: also comprise the anti-tilting mechanism of backing ring and be used to drive the backing ring drive unit that backing ring moves up and down, the anti-tilting mechanism of said backing ring comprises rigidity actuating arm (21) and rigid balancing arm (14);

Rigidity actuating arm (21) and rigid balancing arm (14) are the right-angled intersection setting in the horizontal direction; The end support of said rigidity actuating arm (21) and rigid balancing arm (14) is unsteady supporting structure; Said unsteady supporting structure be the tail end at rigidity actuating arm (21) and rigid balancing arm (14) be provided with open or sealing chute and chute respectively be fixed at said distributor wall box on horizontal supporting shaft (25) be connected; Said rigidity actuating arm (21) and rigid balancing arm (14) head end are hinged with backing ring (8) respectively.

2. fork arm type equal bell-less blast furnace distributor according to claim 1 is characterized in that: the above guide deflection sheave assembly of quadruplet that is equipped with vertical guide that said guiding mechanism comprises that hoop is distributed in that four above vertical guide and hoop on said distributor casing (4) inwall be distributed in the said backing ring outside.

3. fork arm type equal bell-less blast furnace distributor according to claim 2 is characterized in that: said guide deflection sheave assembly vertically is provided with at least one group of guide deflection sheave (16); Said rigidity actuating arm (21) and rigid balancing arm (14) head end both sides respectively with relative two cover guide deflection sheave assemblies in said vertical guide supporting guide deflection sheave (16) coaxial hinged.

4. fork arm type equal bell-less blast furnace distributor according to claim 2 is characterized in that: said guide deflection sheave assembly vertically be provided with at least one group with the supporting guide deflection sheave (16) of said vertical guide; Said rigidity actuating arm (21) and rigid balancing arm (14) head end both sides are hinged with said backing ring (8) respectively.

5. according to any the described fork arm type equal bell-less blast furnace of claim distributor in the claim 1 to 4; It is characterized in that: said backing ring drive unit is a fluid pressure drive device, comprises at least one cover hydro-cylinder that vertically is fixed on the said distributor casing top cover in its structure.

6. fork arm type equal bell-less blast furnace distributor according to claim 5; It is characterized in that: said hydro-cylinder is a cover; Its cylinder body head end is fixedly connected with said distributor box cover, and it is interior and hinged with said rigidity actuating arm (21) one side yoke front portions that its piston rod stretches into distributor casing (4).

7. fork arm type equal bell-less blast furnace distributor according to claim 6 is characterized in that: the structure identical two forks of said rigidity actuating arm (21) head end one side fork for laterally arranging, and its outside fork is hinged with the wheel shaft of said guide deflection sheave (16); The axis of the axis of the hinged and hinge of the inboard fork of said piston rod end and its and the wheel shaft of said guide deflection sheave (16) is positioned at same vertical plane.

8. fork arm type equal bell-less blast furnace distributor according to claim 5; It is characterized in that: said hydro-cylinder is a cover; Its cylinder body head end is fixedly connected with said distributor box cover, and it is interior and hinged with said backing ring (8) that its piston rod stretches into distributor casing (4).

9. fork arm type equal bell-less blast furnace distributor according to claim 5; It is characterized in that: said hydro-cylinder is two covers; Its cylinder body head end all is fixedly connected with said distributor casing top cover; The corresponding piston rod of two cover hydro-cylinders all stretches in the distributor casing (4), and piston rod is hinged with yoke front portion, said rigidity actuating arm (21) both sides respectively.

10. fork arm type equal bell-less blast furnace distributor according to claim 5; It is characterized in that: said hydro-cylinder is two covers; Its cylinder body head end all is fixedly connected with said distributor casing top cover, and it is interior and hinged with said backing ring (8) respectively that the corresponding piston rod of two cover hydro-cylinders all stretches into distributor casing (4).

11. according to any the described fork arm type equal bell-less blast furnace of claim distributor in the claim 1 to 4; It is characterized in that: said backing ring drive unit is electronic many revolution screw type performer, comprise in its structure the leading screw vertically be located in the distributor casing (4), with feed screw nut and electronic many revolution screw type performer of the supporting setting of leading screw; Said feed screw nut is fixedly connected with backing ring (8).

12. according to the described fork arm type equal bell-less blast furnace of each claim distributor in the claim 1 to 4, it is characterized in that: said chute α angle topworks comprises two cover gudgeon crank (23) and special-shaped connecting rods (15); Said two cover gudgeon cranks (23) are positioned at turnbarrel (6) outboard end with two gudgeons respectively and are fixedly connected; Said special-shaped connecting rod (15) lower end is hinged with the left engaging lug (27) and right engaging lug (28) difference that are fixed on turning down supporting (7) the rotation circle with hinged, the upper end of tail end of said two cover gudgeon cranks (23) respectively.

13. according to the described fork arm type equal bell-less blast furnace of each claim distributor in the claim 1 to 4, it is characterized in that: said chute α angle topworks comprises two cover gudgeon cranks, is located at the crank tail wheel of gudgeon crank tail end and is symmetrically set in two cover chutes on the said turning down supporting rotation circle; Said crank tail wheel and the chimeric setting of described two cover chutes.