CN202469074U

CN202469074U - RH (Ruhstahl-Heraeus) pneumatic returning device

Info

Publication number: CN202469074U
Application number: CN201120558481XU
Authority: CN
Inventors: 廖坤明; 张文; 张钟蓓; 盛汉桥
Original assignee: Wisdri Engineering and Research Incorporation Ltd
Current assignee: Wisdri Engineering and Research Incorporation Ltd
Priority date: 2011-12-28
Filing date: 2011-12-28
Publication date: 2012-10-03
Anticipated expiration: 2021-12-28

Abstract

The utility model provides an RH (Ruhstahl-Heraeus) pneumatic returning device which comprises a valve body, wherein the valve body is a three-way valve housing; one end of the valve body is provided with a feeding hole, and the other end of the valve body is provided with a first discharging hole opposite to the feeding hole; a second discharging hole is formed aslant below the valve body; drive devices are symmetrically arranged at the two sides of the valve body; a support device is arranged in the valve body; valve plates corresponding to the first discharging hole and the second discharging hole are arranged on the support device; and the drive device is connected with the support device and drives the valve plates to rotate. The RH pneumatic returning device has the characteristics of large drive torque, no leakage and jamming and small occupied space and the like, is adapt to a high-temperature environment, can effectively prevent the waste of an RH alloy material, is economic and practical, and is remarkable in profit.

Description

The pneumatic material-returning device of RH

Technical field

The utility model relates to a kind of RH (Ruhstahl-Heraeus) equipment for vacuum refining, is meant a kind of pneumatic material-returning device of RH of the RH of being applied to equipment for vacuum refining charging system especially.

Background technique

The RH equipment for vacuum refining is an employed important process equipment in the furnace outer refining technology; Have short, advantages such as throughput is big, refining effect good, easy operation of processing cycle; Metallurgical complete function can adapt to the new steel grade of market demand exploitation flexibly, has obtained using widely.The RH equipment for vacuum refining is made up of buggy ladle, jacking framework, vacuum chamber, top rifle, vacuum chamber top and lifting, ferro-alloy charging system etc.

Material-returning device is the equipment in the RH ferro-alloy charging system; The alloy material that under situation such as ferro-alloy calibration weighing, test, mistake weighing, can weighing tank be unloaded through material-returning device; Through the reversible belt conveyer that gathers of level; Through alloy vacuum charging bucket and wrong material feeding pipe, be discharged in the wrong material hopper.Existing material-returning device Dimension Drive device takes up space greatly; Can't satisfy the technology arrangement requirement, and driving moment is too small, can't satisfies demand of continuous work of auto; Existing in addition material-returning device exists alloy material to leak and the phenomenon that gets stuck, and has reduced the practicability of equipment.

The model utility content

In view of this, the main purpose of the utility model be to provide a kind of driving moment big, do not have leak with the phenomenon that gets stuck, the pneumatic material-returning device of RH little, that adapt to high temperature takes up room.

For achieving the above object, the utility model provides a kind of RH pneumatic material-returning device, and it includes valve body; This valve body is the threeway valve casing; This valve body one end is provided with a material entrance, and the other end is provided with first discharge port relative with this material entrance, and this valve body tiltedly below is provided with second discharge port; This valve body bilateral symmetry is equipped with drive unit; Be provided with bearing device in this valve body, this bearing device is provided with and first discharge port and the corresponding valve plate of second discharge port, and this drive unit connects this bearing device and drives this valve plate rotation.

Said drive unit includes cylinder saddle and cylinder, and this cylinder one end connects cylinder saddle, and the other end is connected with pivoted arm through joint shaft bearing; Said bearing device includes rotating shaft; Said valve body is exposed at these rotating shaft two ends, and the rotating shaft that is positioned at said valve body is provided with said valve plate, and said pivoted arm one end connects this joint shaft bearing; The other end connects said rotating shaft two ends, and said cylinder drives said pivoted arm and rotating shaft and valve plate rotation through said joint shaft bearing.

The two ends of said rotating shaft are supported on respectively on the bearing support through bearing, and the bearing of said rotating shaft one end is for fixedly installing, and the bearing of the other end is the setting of moving about.

Said rotating shaft two ends are provided with lip-type packing.

Leave the gap between said valve plate and the said valve body, said valve plate both sides are provided with rubber plate.

The pneumatic material-returning device of the utility model RH have driving moment big, do not have leak with the phenomenon that gets stuck, take up room little, adapt to characteristics such as hot environment, can effectively prevent the waste of RH alloy material, economical and practical, remarkable benefit.

Description of drawings

Fig. 1 is the plan view one of the pneumatic material-returning device of the utility model RH, and valve plate is positioned at the B1 place among the figure;

Fig. 2 is the plan view two of the pneumatic material-returning device of the utility model RH, and valve plate is positioned at the B2 place among the figure;

Fig. 3 is the left view of the pneumatic material-returning device of the utility model RH;

Fig. 4 is along the A-A line sectional view among Fig. 1;

Fig. 5 is the valve plate assembling detail drawing in the utility model.

Embodiment

For ease of structure of the utility model and the effect that reaches are had further understanding, combine accompanying drawing to develop simultaneously the preferred embodiment detailed description as follows at present.

Extremely shown in Figure 3 like Fig. 1; The pneumatic material-returning device of the RH of the utility model includes valve body 1, and this valve body 1 is the threeway valve casing, and the one of which end is provided with a material entrance 10; The other end is provided with first discharge port 11 relative with this material entrance 10, and this valve body 1 tiltedly is provided with second discharge port 12 in the below; This valve body 1 bilateral symmetry is equipped with drive unit, and drive unit includes cylinder saddle 20 and cylinder 21, and cylinder 21 1 ends connect cylinder saddle 20, and the other end connects pivoted arm 23 through joint shaft bearing 22.Be provided with bearing device in the valve body 1, this bearing device includes rotating shaft 30, and valve body 1 is exposed at rotating shaft 30 two ends; The rotating shaft 30 that is positioned at valve body 1 is provided with and first discharge port 11 and the corresponding valve plate 4 of second discharge port 12; Pivoted arm 23 1 ends connect joint shaft bearing 22, and the other end connects rotating shaft 30 two ends, and cylinder 21 drives pivoted arm 23 rotations through joint shaft bearing 22; And then drive rotating shaft 30 and valve plate 4 rotations; Valve plate 4 is controlled the folding of passage with the passage of second discharge port 12 of first discharge port 11 respectively with pivoted arm 23 rotation, thereby controls the trend of alloy material.Installation and the pipe arrangement symmetric arrangement of two cover cylinders, output torque meets the demands greatly, the symmetric arrangement little RH technology arrangement requirement of satisfying again that takes up room, the utility model two cylinders shared overlap pneumatic system valve platform in addition, make the close look at the swing of two cylinders.

As shown in Figure 4, the two ends of the rotating shaft 30 of the bearing device of the utility model are supported on respectively on the clutch shaft bearing seat 32 and second bearing support 33 through bearing 31; Clutch shaft bearing seat 32 1 ends are provided with end cap 34, and the other end is provided with first axle sleeve, 35, the second bearing supports 33 and is provided with first axle sleeve 35 near an end of clutch shaft bearing seat 32; The other end is provided with second axle sleeve 36, and an end of second bearing support 33 of rotating shaft 30 limits through axle sleeve, bearing and back-up ring, and the bearing 31 at clutch shaft bearing seat 32 places of its shaft 30 moves about; The bearing 31 at second bearing support, 33 places is fixing; Make the utility model can adapt to certain temperature and power variation, rotating shaft 30 two ends are provided with lip-type packing 37, and seal ring 37 adopts resistant to elevated temperatures silicone rubber; And coat high temperature resistant lubricating grease at lip, make rotating shaft 30 have good sealing.Leave certain clearance between valve plate 4 and the valve body 1, the size in this gap calculate to be confirmed by expanding with heat and contract with cold of object, can prevent effectively that the back distortion of being heated of valve plate 4 and valve body 1 gets stuck and make the phenomenon that rotating shaft 30 can't be rotated.

As shown in Figure 5; Be valve plate 4 erection drawings; Valve plate 4 both sides are provided with rubber plate 40, and rubber plate 40 is installed on the valve plate 4 through pressing plate 41 and bolt 42, can prevent that like this alloy material from passing through valve plate 4 and leaking with the slit of valve body 1; Because the softness of rubber plate 40 brushes away the alloy material that sticks on valve body 1 inboard, prevent the accumulation of alloy material in addition.Valve body 1 top of the utility model also can be provided with maintenance hand-hole 13.

The working procedure of the utility model is: after alloy material was through correct weighing, valve plate 4 was positioned at position of rest B1 as shown in Figure 1, closed the second discharge port passage, and first discharge port 11 flows out alloy material from the right side, gets into vacuum chamber through vacuum charging system; When alloy material during in calibration weighing, test, mistake weighing, valve plate 4 is positioned at position of rest B2 as shown in Figure 2, closes the first discharge port passage; Alloy material flows out through second discharge port 12 of below; The alloy material that can unload weighing tank through material-returning device this moment is through the reversible belt conveyer that gathers of level, through alloy vacuum charging bucket and wrong material feeding pipe; Be discharged in the wrong material hopper, effectively prevent the loss and the waste of alloy material.

The advantage of the utility model in practice is:

1. the utility model adopts two cylinder drivers, and driving moment is big, and it is little to take up room, a shared cover source of the gas valve platform, and control system adopts closed loop, guarantees the synchronous and movement speed that two cylinders are flexible;

2. in the supporting and seal arrangement of pivoted arm, the fixing end of two bearings one end in the bearing device moves about, and seal arrangement adopts resistant to elevated temperatures silicone rubber and lubricating grease, makes the variation of the utility model adaptive temperature, and the power that produces changes;

3. the utility model anti-leak, the valve plate side presses the good rubber plate of wear-resisting property, prevents that alloy material from getting into the slit of valve plate and valve body, guarantees that further material-returning device does not have leakage;

4. the utility model also can be designed with the maintenance hand-hole, the convenient observation and maintenance.

The above is merely the preferred embodiment of the utility model, is not the protection domain that is used to limit the utility model.

Claims

1. the pneumatic material-returning device of RH is characterized in that it includes valve body; This valve body is the threeway valve casing, and this valve body one end is provided with a material entrance, and the other end is provided with first discharge port relative with this material entrance; This valve body tiltedly below is provided with second discharge port, and this valve body bilateral symmetry is equipped with drive unit, is provided with bearing device in this valve body; This bearing device is provided with and first discharge port and the corresponding valve plate of second discharge port, and this drive unit connects this bearing device and drives this valve plate rotation.

2. the pneumatic material-returning device of RH as claimed in claim 1 is characterized in that said drive unit includes cylinder saddle and cylinder; This cylinder one end connects cylinder saddle; The other end is connected with pivoted arm through joint shaft bearing, and said bearing device includes rotating shaft, and said valve body is exposed at these rotating shaft two ends; The rotating shaft that is positioned at said valve body is provided with said valve plate; Said pivoted arm one end connects this joint shaft bearing, and the other end connects said rotating shaft two ends, and said cylinder drives said pivoted arm and rotating shaft and valve plate rotation through said joint shaft bearing.

3. the pneumatic material-returning device of RH as claimed in claim 2 is characterized in that the two ends of said rotating shaft are supported on respectively on the bearing support through bearing, and the bearing of said rotating shaft one end is for fixedly installing, and the bearing of the other end is the setting of moving about.

4. the pneumatic material-returning device of RH as claimed in claim 2 is characterized in that said rotating shaft two ends are provided with lip-type packing.

5. the pneumatic material-returning device of RH as claimed in claim 2 is characterized in that, leaves the gap between said valve plate and the said valve body, and said valve plate both sides are provided with rubber plate.