CN202082541U

CN202082541U - Bend

Info

Publication number: CN202082541U
Application number: CN2011202020124U
Authority: CN
Inventors: 陈彩如; 周日平
Original assignee: Changsha Zoomlion Heavy Industry Science and Technology Development Co Ltd
Current assignee: Zoomlion Heavy Industry Science and Technology Co Ltd
Priority date: 2011-06-15
Filing date: 2011-06-15
Publication date: 2011-12-21
Anticipated expiration: 2021-06-15

Abstract

The utility model provides a bend which comprises a feed end (10) and a discharge end (30), wherein the axis of the feed end (10) and the axis of the discharge end (30) form a preset included angle. The bend also comprises a projecting part (50), wherein the projecting part (50) is arranged along the feed direction, relative to the feed end (10), and is provided with an inner cavity, the first end of the projecting part (50) is communicated with the feed end (10) and the discharge end (30), and the second end of the projecting part (50) is a sealed end. The bend disclosed by the utility model has the advantages that the problem in the prior art that the pipe wall is easy to wear can be solved, in addition, the structure is simple, and the service life is long.

Description

Elbow

Technical field

The utility model relates to a kind of elbow.

Background technique

It is to utilize the energy of air to carry out mass transport that strength is carried, and utilizes the aerodynamic energy with certain speed to come conveying material, is the important method of mass transport.At building materials field, dry-mixed mortar is the mixture that professional production producer mixes by a certain percentage with mineral admixtures such as thin collection sand, cement, gesso and admixture.Need adopt the high pressure strength to carry powder in link many places such as its production, transportations.In course of conveying, when particle was carried in horizontal pipe and vertical pipe, particle was very little with the reference angle of the collision of tube wall, generally can not cause serious wearing and tearing.When particle entered elbow, because the change of moving direction is subjected to the effect of centrifugal force and inertial force, particle collided tube wall in the mode of jet, caused the local heavy wear of channel bend, perforation.The elbow of the small radii of curvature arc that generally adopts can't be avoided impact and the abrasion of this material to tube wall at present, and experiment shows that in the process of pneumatic transmission of sand powder, the elbow wear extent is 50 times of straight tube wear extent.In the use, the tube wall of elbow is easy to be worn through, and needs often to change, and causes whole system interrupt run, has reduced working efficiency.

The model utility content

The utility model aims to provide a kind of elbow, to solve tube wall problem easy to wear in the prior art.

To achieve these goals, the utility model provides a kind of elbow, comprising: feed end and discharge end, wherein, the axis of feed end and the axis of discharge end are predetermined angle, and elbow also comprises: lug boss, be oppositely arranged along feedstock direction and feed end, have inner chamber; First end of lug boss is communicated with feed end and discharge end respectively, and second end is a closed end.

Further, closed end comprises: the connecting ring that extends radially outward and the link that is connected with connecting ring that are arranged on second end of lug boss.

Further, be provided with seal washer between connecting ring and the link.

Further, the dead in line of the axis of lug boss and feed end.

Further, the cross section of lug boss and the cross section of feed end are of similar shape, and described lug boss has identical size with feed end.

Further, lug boss is connected by cambered surface with discharge end.

Further, the madial wall of discharge end is provided with block, and block is arranged near feed end one side.

Further, block is fixedly installed on the madial wall of discharge end, and block is along the extending circumferentially of the madial wall of discharge end.

Further, block is circular arc or part circular along the cross section of the radial direction of discharge end.

Further, lug boss, feed end and discharge end are structure as a whole.

Use the technical solution of the utility model, be provided with lug boss, be oppositely arranged along feedstock direction and feed end, lug boss has inner chamber.In the using process, powder or other particulate materials are by elbow the time, a part is in the interior accumulation of inner chamber, come in after making particulate material friction, the collision of accumulation in particulate material and the inner chamber, like this, effectively avoid direct friction, the impact of granular substance confrontation swan neck wall and then cut down the elbow wearing and tearing greatly, effectively prolonged the working life of elbow, avoid system break to safeguard or change the number of times of elbow, thereby improved working efficiency.

Description of drawings

The Figure of description that constitutes the application's a part is used to provide further understanding of the present utility model, and illustrative examples of the present utility model and explanation thereof are used to explain the utility model, do not constitute improper qualification of the present utility model.In the accompanying drawings:

Fig. 1 shows the structural representation according to the embodiment of elbow of the present utility model;

Fig. 2 shows the A-A of elbow among Fig. 1 to sectional view;

Fig. 3 shows the A-A of the another kind of structure of elbow among Fig. 1 to sectional view; And

Fig. 4 shows the working principle schematic representation of elbow among Fig. 1.

Embodiment

Need to prove that under the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.Describe the utility model below with reference to the accompanying drawings and in conjunction with the embodiments in detail.

Fig. 1 shows the structural representation according to the embodiment of elbow of the present utility model, as shown in Figure 1, as can be seen from the figure, the elbow of present embodiment comprises: feed end 10 and discharge end 30, and wherein, the axis of the axis of feed end 10 and discharge end 30 is predetermined angle, for convenience of explanation, next be that 90 degree are that example describes with predetermined angle, should be not limited to 90 above-mentioned degree by predetermined angle certainly, the number of degrees of predetermined angle can be determined according to actual needs.This elbow also comprises: lug boss 50, this lug boss 50 be for to extend to form towards feedstock direction along feed end 10, and be oppositely arranged with feed end 10, and this lug boss 50 has inner chamber; Simultaneously, first end of lug boss 50 is communicated with feed end 10 and discharge end 30 respectively, and second end is a closed end, the feed end 10 of the elbow of present embodiment, discharge end 30 and lug boss 50 T-shaped structures.Preferably, lug boss 50, feed end 10 and discharge end 30 are structure as a whole.

The structure of closed end can have multiple, in a kind of preferred embodiment, as shown in Figure 1, this closed end comprises the connecting ring that extends radially outward of second end that is arranged on lug boss 50 and the link 51 that is connected with connecting ring, preferably, link 51 is a flange.Flange arrangement is simple, and uses high-abrasive material increasing its service time as far as possible, and, the impact that flange can be subjected to particulate material at the charging initial stage causes to a certain degree wearing and tearing, when flange damages, only need change it and can accomplish to utilize once more, like this, save cost more.Preferably, connecting ring is connected by one group of screw bolt and nut with link, and is simple in structure, is convenient to change.Simultaneously, in order to increase sealing, can between connecting ring and link, seal washer be set.

In the above-described embodiments, as shown in Figure 1, feed end 10 and lug boss 50 are the structure with axis, such as tubular structure, preferably, the dead in line of the axis of lug boss 50 and feed end 10, and then preferably, the cross section of lug boss are of similar shape with the cross section of feed end and have an identical size.Like this, the powder or other particulate materials that enter feed end 10 do not contact with bend wall as much as possible, thereby the interior formation that enters the inner chamber of lug boss 50 directly, is apace piled up, thereby helps to strengthen wear-resisting effect, helps reducing the wearing and tearing to elbow simultaneously.

Fig. 4 shows the working principle schematic representation of elbow, as shown in Figure 4, as can be seen from the figure: in the using process, powder or other particulate materials are entering elbow by feed end 10, wherein a part is moved along the axis line track of feed end 10 and discharge end 30, shown in track B.Another part is piled up in inner chamber owing to effect of inertia, the particulate material friction of piling up in particulate material of coming in after making and the inner chamber, collision are again to discharge end 30 motions, like this, effectively avoid direct friction, the impact of granular substance confrontation swan neck wall and then cut down the elbow wearing and tearing greatly, effectively prolonged the working life of elbow.When the particulate material of piling up in the inner chamber is filled into to a certain degree, after the particulate material of coming in and accumulation the particulate material collision and change direction, specifically, wherein a part of particulate material is under the guiding of the connection part between lug boss 50 and the discharge end 30, shown in track C, to discharge end 30 motions, another part particulate material then bounces and turns to discharge end 30, shown in track D.Like this, avoided system break to safeguard or change the number of times of elbow, thereby improved working efficiency.

Preferably, as shown in Figure 1, lug boss 50 and discharge end 30 are connected by cambered surface, it is the curve transition that is connected between lug boss 50 and the discharge end 30, as shown in Figure 4, wherein a part of particulate material can move to discharge end 30 along track C under the leading role of this cambered surface when the particulate material of piling up in the inner chamber was accumulated to a certain degree.The design of cambered surface makes wearing and tearing herein effectively reduce.

Preferably, in conjunction with referring to Fig. 1 to Fig. 3, the madial wall of discharge end 30 is provided with block 31, and this block 31 is arranged near feed end 10 1 sides.It also can be one group of a plurality of formation that the quantity of block 31 can be one, the effect of this block 31 is the flow velocitys that slow down particulate material, thereby weaken cutting to tube wall, specifically, when particulate material enters elbow, flow to discharge end 30 with track D as shown in Figure 4, utilize block 31 can make near near the sedimentary deposits that form particulate materials the block 31, thereby particulate material of coming in after making and sedimentary deposit friction, bump, thereby can weaken wearing and tearing to this zone.

Preferably, block 31 is fixedly installed on the madial wall of discharge end 30, and block 31 like this, can well play barrier effect along the extending circumferentially of the madial wall of discharge end 30.The shape of block 31 can be for multiple, and wherein a kind of is circular arc shown in Figure 2, and block 31 also can adopt the structure of part circular certainly, as shown in Figure 3.

Preferably, feed end 10 has material feeding mouth, and discharge end 30 has discharge port, and material feeding mouth place and discharge port place are provided with respectively and carrier pipe flange connecting 11 and flange 33.Utilize flange 11 and flange 33 simple and easy to use with the carrier pipe attended operation.

The above is a preferred embodiment of the present utility model only, is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within spirit of the present utility model and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.

Claims

1. elbow comprises:

Feed end (10) and discharge end (30), wherein, the axis of the axis of described feed end (10) and described discharge end (30) is predetermined angle,

It is characterized in that described elbow also comprises:

Lug boss (50) is oppositely arranged along feedstock direction and described feed end (10), has inner chamber; First end of described lug boss (50) is communicated with described feed end (10) and discharge end (30) respectively, and second end is a closed end.

2. elbow according to claim 1 is characterized in that, described closed end comprises: the connecting ring that extends radially outward and the link (51) that is connected with described connecting ring that are arranged on second end of described lug boss (50).

3. elbow according to claim 2 is characterized in that, is provided with seal washer between described connecting ring and the described link (51).

4. elbow according to claim 1 is characterized in that, the dead in line of the axis of described lug boss (50) and described feed end (10).

5. elbow according to claim 4 is characterized in that, the cross section of the cross section of described lug boss (50) and described feed end (10) is of similar shape, and described lug boss (50) has identical size with described feed end (10).

6. according to each described elbow in the claim 1 to 5, it is characterized in that described lug boss (50) is connected by cambered surface with described discharge end (30).

7. elbow according to claim 6 is characterized in that, the madial wall of described discharge end (30) is provided with block (31), and described block (31) is arranged near described feed end (10) one sides.

8. elbow according to claim 7 is characterized in that, described block (31) is fixedly installed on the madial wall of described discharge end (30), and described block (31) is along the extending circumferentially of the madial wall of described discharge end (30).

9. elbow according to claim 7 is characterized in that, described block (31) is circular arc or part circular along the cross section of the radial direction of described discharge end (30).

10. elbow according to claim 1 is characterized in that, described lug boss (50), described feed end (10) and described discharge end (30) are structure as a whole.