Injection pipeline for transportation of thick masses

FIELD: construction.

SUBSTANCE: invention relates to the field of transportation of thick masses by means of pipelines. Injection pipeline for transportation of thick masses, in particular liquid concrete for construction of a structure, is equipped with several pipes detachably split with each other in points of butt joints, serially arranged in longitudinal direction of pipeline. At the same time at least one of pipes is fixed in immovable support. Besides at least one subsequent pipe is pulled with the possibility of displacement along axis via guide element rigidly mounted on the structure. At the same time guide element forms floating support for basing of the according pipe. Device for fixation of injection pipeline for thick masses on the structure comprises at least one guide element fixed on the panel of floor slab or on the structure wall for alignment of one of the pipes, which is installed movably in direction of axis in guide element. At the same time guide element forms floating support for basing of the according pipe.

EFFECT: reduced tension in injection pipeline and improved possibility for replacement of separate pipes.

39 cl, 13 dwg

 

The invention relates to a discharge pipeline for the transportation of dense masses according to the restrictive part of paragraph 1 of the claims, as well as to a device for fastening the discharge to a thick mass according to the restrictive part of paragraph 25 of the claims and to the lifting mechanism according to the restrictive part of paragraph 35 of the claims.

The discharge piping of the mentioned type are used, in particular, in the construction of tall structures such as tall buildings or water dam. They are held vertically or at an angle upwards and are designed to transport liquid concrete to located in the high altitude of the place of its use. The height of the discharge increases with the height of the building, and to its upper end joins the next pipe, if you use a transportable concrete is shifted to higher altitudes. Known injection pipes are fixed on the already concreted bottom areas of the structure. To do this around the pipeline put the clamps for fastening pipes, the so-called binding, and fixed in the building. However, there is a problem in that, when the drying of concrete walls and slabs of the structure are omitted. This effect is the stronger, the higher the building. Those who are not less lowering walls and ceilings leads to stresses in fixed them discharge line, which is stronger, the higher the building. Linear deformation of the discharge, which is called, for example, by changing the temperature or the pressure created by the attached concrete pump, leads to stresses in fixed on the construction of the discharge pipe. In addition, for the replacement of individual damaged or worn pipe it is necessary to dismantle a large part of the discharge pipeline.

Therefore, the object of the invention is to provide means which at least reduce the voltage in the discharge line, with the movements of the discharge relative to the structure. The next task of the invention is to create the best possible replacement for individual pipes.

The task is solved according to the invention via the pressure pipe with signs of paragraph 1 of the claims, and by means of the fastening device with signs of paragraph 25 of the claims. The lifting mechanism with signs of paragraph 35 of the formula of the invention makes possible the replacement of individual segments of the pipe without the need to dismantle the entire discharge line.

The basis of the invention is the idea that pipe nagnetic the high pipe in the axial direction must be installed movably in relation to the construction. Guiding elements form a floating support where appropriate based pipes. The subsidence of the structure, which causes a lowering set therein, the guide element is not reflected on the discharge pipeline at all or only to a minor extent, because the guide element is displaced toward rooted in the pipe. Also decrease in discharge line voltage that result from changes in length of pipe due to temperature variations or varying pressure slurry pump.

Perenesennosti pipe relative to the guide elements are important, particularly in the upper regions of construction, because of the drying process of concrete is a distinct decrease. Therefore, it can be provided that only the most top tubes were traveling along the axis of the guide element. However, it is preferable that each of the pipes above is fixed in the fixed bearing pipe was installed movably along an axis fixed in the construction of the guide element. Because of this largely prevents the voltage in the lower pipe injection pipe.

At least one guide element preferably contains at least two parts, limiting the penetration hole for ACC is testuya tube and detachable from each other and from the facilities. This makes possible a simple Assembly guide element. It is advisable at least one guide element to provide in the area of bore holes adjacent to the pipe moving elements. They preferably consist of at least adjacent to the pipe surface slip from wear-resistant plastic with a low coefficient of friction, preferably polyamide. Due to this, avoid damage to the pipe by relative movement to the guiding element, preferably consisting of a hard material such as metal. In addition, the sliding elements are used for sound proofing, so that at least impeded the transfer of construction occurring during the pumping process noise. Preferably, at least one guide element contains at least two flat segments of the guide plate, the flat segments which Rethimno connected to each other and limit the penetration hole. Guiding elements can be respectively installed in an aperture in a panel, floor coverings, mounted on it or on the console, which is fixed on the wall structure.

Expediently, one of the pipes has obecause external thickening. Preferably this pipe is surrounded divided into two parts clamping plate, and both parts of the line is built partially surround the pipe. Obecause external thickening rests on the clamping plate. The support is preferably a support bracket, which contains provided with a slot positioned horizontally support plate for application of a clamping plate, and the slot has a width that is larger than the diameter of the lower pipe. Support bracket suitable fixed on the building, preferably on the Foundation or on one of the lower floors. On the base plate suitable profile is installed to fix the clamping plate in the horizontal direction. In the construction of the discharge pipe lower pipe is inserted into the slot in the base plate and surrounded by the clamping plate. Then the clamping plate is located on the base plate within the profile, and obecause external thickening of the lower pipe is superimposed on the retaining plate.

Alternatively, a fixed support may have two tires installed at a distance from each other on the panel floor slab, and put on the tire retainer plate with opening for conducting equipped with an external thickening of the pipe. When this clamping plate is fixed on the fixing plate. Expediently, the clamping plate, clamping plate and tires Rethimno connected to each other by bolts, whereby the weight of the discharge, which is resting on the tires, is distributed over a large area of the ü. Tires for better grip on the construction can be carried out by the ends through openings in the walls of the structure. They expediently consist of steel.

It is the distance from the guide element to provide at the top of at least one of the pipes of the safety element, which protrudes from the outer surface of the pipe so that it cannot be drawn through the penetration hole. The safety element prevents the destruction of the injection pipe located above the location of the breakage of the pipe was slipped through the guide elements down and struck the building, possibly substantial losses. The safety element is preferably mounted on the pipe with the power circuit.

According to a preferred variant of execution of one of the pipes is provided with a flap for closing. When the pumping is finished, the discharge line is still completely filled with a dense mass. When applied to a high building, this may represent a significant amount of dense mass. After locking the pipe through a valve attached slurry pump can be removed, and remaining in the injection pipeline residual dense mass may be controlled to descend upon opening of the valve in the prepared containers or in the Foundation of a building. This barrier is as advisable is located below the fixed bearing.

The pipes are preferably connected to each other by radially protruding over the outer surface of pipe couplings. Pipe couplings are formed preferably mounted on the pipe end sides of the flanges and connect the flanges of the clamping rings. It is simply a releasable connection between the pipes. For a pipe coupling, the protruding above the outer surface of the pipe, in addition, you can easily capture for lifting the discharge or individual tubes. The lower pipe is advisable attached through the supply line to the slurry pump.

Corresponding to the invention the lifting mechanism allows the easy replacement of individual tubes. For this purpose, the tube is superimposed covering her cuff. Then the cuff is lifted pinned to the floor by lift, so that the force is transferred to the radially protruding above the outer surface of the discharge pipe coupling, and due to this it is lifted. Thus may rise portion of the discharge line when disconnecting the nearest lower pipe coupling. This is advantageous, in particular, when the pipe joints are inserted into each other at some length.

Cuff expediently has a round cross section, and its inner diameter is less than the outer diameter of the pipe coupling. The lift preferably has at least one hydraulic cylinder. Particularly preferably, the lift had divided the baseplate to the cuff with a through hole for one of the pipe segments on the lower side of which is equipped with hydraulic cylinders for lifting the support plate relative to the floor surface. Hydraulic cylinders under pressure from the hydraulic pump can develop a great effort. Corresponding to the invention the lifting mechanism can be used for conventional injection pipelines, and originally must disconnect mount raises the parts of the injection pipeline construction. However, particularly advantageous is the use of an elevating mechanism for injection pipeline installed to move along the axis of the pipes according to the invention, because it can get up without disconnecting the fastening between building and discharge pipeline.

The invention is further explained more by schematically represented in the drawings of the exemplary embodiment. The drawings show:

Figure 1 - schematic diagram passing through several floors of the building discharge to a thick mass according to the first who have exemplary embodiment;

Figa, b - fastening of pipes in the doorway of the overlap in the detailed view and Assembly;

Figure 3 - alternative fastening pipes on the wall of the building;

Figure 4 - mounting the lower pipe injection pipe according to figure 1;

Figure 5 - lifting mechanism;

Figa, b, c is a schematic representation of the replacement pipe;

7 is a schematic diagram passing through several floors of the building discharge to a thick mass according to the second example of production;

Fig - fixed support injection pipe according to Fig.7;

Fig.9 - valve discharge piping according to Fig.7;

Figure 10 - a safety element for the discharge according to Fig.7.

Injection pipe 10 (Fig 1) for dense masses conducted through several floors of the building and is used to transport liquid concrete from a conducting pipe 12 to the place of its use at high altitude. Injection pipe 10 is formed from multiple connected in series in the longitudinal direction of the tubes 14, which are threaded through the openings 16 in a few panels 18 storey floors. At the ends of the tubes 14 have a protruding over the outer surface of the flanges 20, which they related to each other by means of clamping rings 22. In the flange 20 of the pipe 14 and W which are visited each other.

In the area of the openings 16 in the panels of the pipe 14 attached to the panels 18 storey floors. Next, the tube 14 can be fixed to the walls 24 of the building (figure 3). The pipes 14 in the panels 18 storey floors and walls 24 of the building occurs through the guide elements 26. Guiding elements 26 each contain a guide plate 28, which consists of two Rethimno interconnected flat segments 30, which in the United state leave free the penetration hole 32 to the pipe 14. Each of the flat segments 30 half surrounds the tube 14, so that the tube 14 is in pass-through hole 32 of the guide plate 28.

The guide plate 28 has means 38 attachment, which it is rigidly fixed to the panels 18 storey floors. When attaching the guide element 26 on one of the walls 24 of the building guide plate 28 is mounted on the console 39, which is fixed on the wall 24 of the building. Console 39 has a slot means 38 attachment, which makes possible the fixing of the guide plate 28 at a variable distance from the wall 24 of the building. The guide plate 28 provided with a protruding in the penetration hole 32 of the sliding elements 34. They are made of polyethylene and, therefore, have a low coefficient of friction and high resistance to wear. Each sliding element 34 sootvetstvenno the adjacent surface 36 of the slide to the pipe 14, so it almost motionlessly fixed guiding element 26 in the horizontal plane, however, mounted for movement along an axis. Guiding elements 26 form thus a floating support for the discharge pipe 10.

The bottom of the pipe 14 mounted on a fixed stationary on one of the bottom panel 18 of the building supporting bracket 40 on the fixed bearing (figure 4). The support bracket 40 includes a support plate 42, which is installed on the rack 44. The base plate 42 has a slot 46, the width of which is greater than the outer diameter of the pipe 14. The lower pipe 14 carries obecause thickening 48, which rests on the two halves of the clamping plate 50. The clamping plate 50 in turn rests on the base plate 42 and through the receiving profile 52 on the upper side of the support plate 42 secured against sliding in the horizontal direction. The lower pipe 14 is attached to the inlet pipe 12, which leads to a not represented here, the concrete pump.

For replacement of the pipe 14 is provided a lifting mechanism 60 (figure 5), which contains a partial cuff 62, which is applied around one of the pipes 14. The sleeve 62 is resting on the lift 64, which has a support plate 66 with the orifice 68 to the pipe 14. On the lower side of the support plate 66 has four hydraulic the fir cylinder 70, which can be fed under pressure by the action of the hydraulic pump 72. To replace the damaged pipe 14a (figa-6c) first opened clamping ring 22 at its upper flange. The sleeve 62 is placed on placed above the pipe 14b and is lifted by the lift 64 up until then, until he comes to contact with the nearest upper pipe coupling and accordingly its clamping ring 22. A further rise of the cuff 62 causes the removal of the top pipe 14b with damaged pipe 14a. It can then be removed and replaced by a spare part. Moreover, it may be deleted based damaged pipe 14a, the guide element 26.

The discharge pipe 110 according to the second exemplary embodiment (7) is different from the injection pipe 10 according to the first exemplary embodiment, essentially, the formation of the fixed bearing. Therefore, the same structural parts provided with the same designations as in the first exemplary embodiment. Instead of the support bracket 40 is provided by a stationary bearing 140 (Fig), which contains two spaced and parallel to each other steel bus 142, which are located on the panel 18 storey floor. The ends of the steel tire 142 are threaded through the openings 25 in the wall and as a consequence attached to the building. On steel bus 142 is screwed on the fixing plate 144, which has an aperture for the performance of the pipe 14, moreover, the opening is located above the gap between the steel tyres 142. As in the first exemplary embodiment, the pipe 14 which is provided with an external thickening 48, surrounded divided into two parts clamping plate 50, which is screwed to failure on the locking plate 144. In contrast to the first exemplary embodiment this is provided by an external thickening 48 pipe 14, which discharge pipe 110 is based on a fixed support 140 is not normal transporting pipe. Moreover, we are talking about intermediate, which is shorter than the other pipe 14, and which serves only to bearing in the fixed bearing 140. Fixed support 140 is, in contrast to the first exemplary embodiment, not in the basement, and the panel 18 storey overlap one of the lower floors.

Below the fixed bearing 140 one of the tubes 14 provided with a valve 150 (Fig.9), which can be blocked by a pipe 14. Liquid concrete, which after the end of the pumping process is still in the injection tubing 110, can be produced by means of the valve 150. For this purpose, the valve 150 is closed first, so that above the valve 150 column of liquid concrete can be dropped down. Then the concrete pump is disconnected from the supply pipe 12, and below the valve 150 in the injection tubing 110 liquid be who he follows. Finally, the valve 150 is opened, and the remaining liquid concrete is directed through conduit 12 or in prepared containers or in the building for the concreting of the Foundation.

To ensure the safety injection pipe 110 to the pipe 14 at a distance and over the guide elements 26 are wearing protective elements 160 (figure 10). They consist of two clamps 162, held together by bolts, which are equipped with force closure to the outer surface of pipe 14. The clamps 162 protrude above the outer surface of the pipe 14 so that they may not pass either through one of the through-holes 32. When the destruction of the injection tubing 110 safety element 160 prevents slippage above designated breakage of parts of the injection tubing 110, and it rests on the guide plate 28.

Summarizing, it should be emphasized: the invention relates to a discharge line 10; 110 for transporting a dense mass, in particular liquid concrete for construction, with several Rethimno linked to each other in the joints of the pipes 14, successively arranged in the longitudinal direction of the pipeline. According to the invention provides that at least one of the pipes 14 fixed in the fixed bearing 40; 140 and that at least one of the following is the pipe 14 conducted with the possibility of movement along the axis rigidly mounted on the construction of the guide element 26.

1. The discharge pipeline for the transportation of dense masses, in particular of liquid concrete for construction, with several pipes (14), Rethimno bound to each other at joints, successively arranged in the longitudinal direction of the pipeline, and at least one pipe (14) is fixed in a stationary support (40; 140), characterized in that at least one of the following pipe (14) is omitted with axis through rigidly mounted on the construction of the guide element (26)and the guide element forms a floating support for the base of the corresponding pipe.

2. Injection pipe according to claim 1, characterized in that the lower tube (14) is fixed in a stationary support (40; 140), and above it the pipe (14) skipped with axis through rigidly mounted on the construction of the guide elements (26).

3. Injection pipe according to claim 1, characterized in that one of the pipes (14)above the bottom of the pipe (14), mounted in a stationary support (40; 140).

4. Injection pipe according to any one of claims 1 to 3, characterized in that at least one guide element (26) comprises at least two parts (30), limiting the penetration hole (32) for the corresponding pipe (14) and separated from each other and from the building./p>

5. Injection pipe according to claim 4, characterized in that at least one guide element (26) in the area of bore holes (32) are provided adjacent to the pipe (14) of the sliding element (34).

6. Injection pipe according to claim 5, characterized in that the sliding elements (34) of at least one adjacent to the pipe (14) surface (36) of the slide is made of durable plastic with a low coefficient of friction, preferably polyamide.

7. Injection pipe according to claim 4, characterized in that at least one guide element (26) contains at least two flat segments (30) guide plate (28), flat segments (30) which Rethimno connected to each other and limit the penetration hole (32).

8. Injection pipe according to any one of claims 1 to 3, characterized in that at least one of the guide elements (26) is mounted in the opening (16) in the panel (18) floor slabs.

9. Injection pipe according to any one of claims 1 to 3, characterized in that at least one of the guide elements (26) is mounted on the console (39), which is fixed on the wall (24) of the structure.

10. Injection pipe according to any one of claims 1 to 3, characterized in that one of the pipes (14) has an outer circumferential thickening (48).

11. Injection pipe of claim 10, otlichalis the same time, he is equipped with a locking plate (50)is divided into two parts, each of which partially surrounds equipped with an external thickening (48) of the pipe (14), and external thickening rests on these parts (48).

12. Injection pipe according to claim 11, characterized in that the fixed bearing (40) is the supporting bracket, which contains provided with a slot positioned horizontally support plate (42) for application of a clamping plate (50)and the slot (46) has a width that is larger than the diameter equipped with an external thickening (48) of the pipe (14).

13. Injection pipe according to item 12, characterized in that the supporting plate (42) has a profile (52) for fixing the clamping plate (50) in a horizontal direction.

14. Injection pipe according to item 12 or 13, characterized in that the support bracket (40) rigidly attached to the structure.

15. Injection pipe according to claim 11, wherein the fixed support comprises two tires (142), installed at a distance from each other on the floor panel overlap, preferably steel tires, and installed on the bus (142) retainer plate (144) with opening for transmission equipped with an external thickening (48) of the pipe (14).

16. The discharge pipe through 15, characterized in that the clamping plate (50), the locking plate (144) and bus (142) Rethimno connected to each other by bolts.

17. Magnet the sory line 15 or 16, wherein the bus (142) with their ends passed through openings (25) in the walls of the structure.

18. Injection pipe according to claim 4, characterized in that at least one of the pipes (14) above and at a distance from the guide element (26) is equipped with a safety element (160), which acts on the outer surface of the pipe so that it can be carried out via the pass-through hole (32).

19. The discharge pipeline p, characterized in that the safety element (160) equipped with force closure to the tube (14).

20. Injection pipe according to any one of claims 1 to 3, characterized in that one of the pipes (14) provided with a valve (150) for locking.

21. Injection pipe according to claim 20, characterized in that the valve (150) is located below the fixed support (40; 140).

22. Injection pipe according to any one of claims 1 to 3, characterized in that the pipe (14) connected to each other at joints by means of radially protruding over the outer surface of pipe couplings (20, 22).

23. Injection pipe according to item 22, wherein the pipe coupling is formed by a flange (20)mounted on the end sides of the tubes (14)and clamping ring (22)connecting the flanges (20).

24. Injection pipe according to any one of claims 1 to 3, characterized in that the lower tube (14) through the supply line (12) p is soedineni to the slurry pump.

25. Device for mounting on the construction of the injection pipe (10; 110) for dense masses formed from Rethimno interconnected pipes (14), successively arranged in the longitudinal direction of the pipeline, in particular, for liquid concrete, characterized in that it comprises at least one fixed panel (18) floor coverings or wall (24) of the construction of the guide element (26) for centering one of the pipes (14), which is installed movably in the axis direction in the guiding element (26)and the guide element forms a floating support for location of the corresponding pipe.

26. The device according A.25, characterized in that it comprises at least one guide element (26) for a certain number of pipes (14), preferably for each pipe (14).

27. The device according to p, characterized in that at least one guide element (26) comprises at least two parts (30), limiting the penetration hole (32) for the corresponding pipe (14), separated from each other and from the building.

28. The device according to item 27, wherein the at least one guide element (26) is provided adjacent to the pipe (14) in the area of bore holes of the sliding element (34).

29. The device according to p, characterized in that the sliding elements (34), at least the and adjacent to the pipe (14) surface (36) of the slide, made of durable plastic with a low coefficient of friction, preferably polyamide.

30. The device according to p. 25, wherein the at least one guide element (26) contains at least two flat segments (30) guide plate (28), flat segments which are installed with the possibility detachable connection with each other for gripping the pipe (14).

31. The device according A.25, characterized in that it comprises a stationary mounted on the construction of the support bracket (40) for fastening one of the pipes (14) of the injection pipe (10).

32. The device according to p, characterized in that the support bracket (40) includes a support plate (42) with a slot (46), the width of which is greater than the diameter of the fixed tube (14).

33. The device according to item 27, characterized in that it contains is divided into two parts the clamping plate (50) for embracing fixed pipe (14) and for overlaying on the support plate (42).

34. Device according to any one of p-30, characterized in that it comprises a fixed support (140) for fastening the discharge pipe (110), which contains two tires (142), set at a distance from each other on the panel (18) floor coverings, in particular steel tires installed on the bus (142) retainer plate (144) with opening for a pipe (14), and is divided into Ducati retaining plate (50) for embracing the pipe (14) for fixing the retaining plate (144).

35. The lifting mechanism consists of several pipes (14) of the injection pipe (10; 110), and pipes (14) Rethimno connected to each other by radially protruding over the outer surface of pipe couplings (20, 22), characterized in that it contains the cuff (62) for at least partially embracing the pipe (14) and to create a pipe coupling (20, 22) efforts in the axial direction of the injection pipe (10)and fastened on the stationary floor surface lift (64) for lifting cuff (62).

36. The lifting mechanism p, characterized in that the sleeve (62) has a round cross section and its inner diameter less than the outer diameter of the pipe coupling (20, 22).

37. The lifting mechanism p or 36, characterized in that the lift (64) has at least one hydraulic cylinder (70).

38. The lifting mechanism according to clause 37, wherein the lift (64) has shared additional support plate (66) to the cuff (62) with an orifice (68) for one of the pipes (14), on the lower side of which is mounted a hydraulic cylinder (70) for lifting the support plate (66) relative to the floor surface.

39. The use of an elevating mechanism according to any one of p-38 for lifting the injection pipe (10; 110) according to any one of claims 1 to 24.



 

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8 cl, 4 dwg

FIELD: construction.

SUBSTANCE: placer mast of a truck-mounted concrete pump is designed to supply concrete to the place of its laying when performing construction works carried out preferably at height. The mast comprises folding sections that are hingedly coupled and joined to each other by means of hydraulic cylinders. The root section of the mast is hingedly installed on the stand of the rotary device. The last section of the placer mast and the end of the concrete line are arranged as telescopic. The telescopic section of the mast is mounted on the main mast as capable of rotation by an angle of 360° and with the possibility of lifting and lowering in the vertical plane by means of a hydraulic cylinder. The extreme link of the telescopic section of the concrete line of a smaller diameter is connected with the main concrete line as capable of rotation. Extreme links of telescopic sections of the mast and the concrete line are fixed to each other, besides, the section of the smaller diameter is fixed to the section of the larger diameter. Extension of the links of the telescopic section of the placer with extended links of the concrete line is carried out with the help of the hydraulic cylinder installed in the cavity of the specified mast section.

EFFECT: expanded working zone and control of concrete supply to a place of laying without displacement of a truck-mounted concrete pump.

3 cl, 5 dwg

FIELD: machine building.

SUBSTANCE: invention relates to the mobile work device, in particular to the truck-mounted concrete pump. The work device includes the chassis, two front and two rear support cantilevers, pulled out from the transportation position to at least one work position relatively the chassis and each supported by the support leg on soil during the chassis lifting, and drive assembly to control the work devices and/or support cantilevers. At least one the support cantilevers having beam or hollow section has the cross-section aperture in form of the casing for the liquid tank or for the secondary device of the drive assembly.

EFFECT: improved design.

16 cl, 3 dwg

FIELD: engines.

SUBSTANCE: method of engine speed control is designed to control output engine speed of a boom-type engineering machine during a boom action includes: detecting a load pressure of a hydraulic system and a moving speed of a boom; determining a target speed of the engine according to the load pressure and the moving speed of the boom, by a central control unit; sending, by the central control unit, the target speed of the engine to an engine control unit, and performing, by the engine control unit, a speed closed-loop adjustment according to a current speed value fed back by the engine, so that a current speed of the engine is consistent with the target speed of the engine.

EFFECT: additional aspects of the invention are a device for engine speed control and boom-type engineering machine containing device for engine speed control.

10 cl, 3 dwg

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