RU2476654C1 - Placer mast of truck-mounted concrete pump - Google Patents

Abstract

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

Description

The invention relates to the working equipment of concrete pumps intended for supplying concrete mixture to the installation site in the coverage area of the boom in all its spatial positions during construction work, repair of building structures, mainly at a height.

Known telescopic distribution boom with a flexible concrete path [Patent No. US 6679284 B1. Date of patent: Jan 20, 2004]. In the known device, the execution of the distribution boom is telescopic, and the concrete is supplied through a flexible concrete conduit, which can be folded out from the supporting platform. A cradle is mounted on the head of the distribution boom for operating personnel who manipulate the feed concrete conveyor. However, this design is not compact enough, the distribution boom is telescopic and there is no possibility of manipulating the feed concrete conveyor, it is mechanized, as the filling is carried out using manual labor. In addition, the performance of concrete work at height using the specified device is unsafe.

Closest to the proposed design is the working equipment of the SB-126B concrete pump, which includes a hydraulic-driven concrete pump and an articulated distribution boom with a concrete conduit [Beletsky B.F. Construction machinery and equipment: a reference guide. - Rostov n / A: Phoenix, 2002. - S.348-351]. The distribution boom of the SB-126B concrete pump, adopted as a prototype of the claimed device, consists of three articulated and folding sections: root, middle and end. The root section is pivotally mounted on a stand mounted on a rotary device driven by a rotation mechanism. To change the position of the sections are interconnected by hydraulic cylinders. The root section can change the position relative to the horizontal plane by an angle of 90 °, the middle one - by an angle of 180 ° relative to the root section, and the end - by an angle of 270 ° relative to the middle section. The device also contains a boom control unit, a suction and discharge hose, a rotation limiter and a concrete conduit. The disadvantage of this working equipment is the inability to control the placement of concrete in space and the minimum working area. When supplying concrete, there is no possibility of point distribution by a mechanized method, which reduces the operational performance of the concrete pump, since it leads to additional parking places, reduces the safety of concrete work at heights. In addition, the expansion of the concreted work area is limited without moving the concrete pump itself.

The objective of the invention is to increase the operational performance of the concrete pump by controlling the concrete supply through the concrete conduit and delivering it targeted to the installation site, reducing the proportion of manual labor in the process of performing concrete work, reducing the required number of parking lots during concreting, and ensuring safety when performing concrete work at heights.

The technical result to which the invention is directed is to control the concrete supply process and at the same time maintain stability (the definition of which is calculated in 4 positions of the concrete pump) in increasing the working area of the device and ensuring the performance of concrete work in cramped conditions.

The problem is solved as follows.

Like the prototype, the claimed distribution boom of the concrete pump contains folding sections articulated and interconnected by hydraulic cylinders. The root section is pivotally mounted on the stand of the rotary device. The distribution boom contains, like the prototype, a boom control unit and a concrete conduit.

Unlike the prototype, the distribution boom of the concrete pump according to the invention further comprises a removable telescopic section connected to the end section of the boom with the possibility of rotation through an angle of 360 ° and with the possibility of lifting and lowering in a vertical plane. The end of the concrete conduit is also equipped with an additional telescopic section, the extension link of which is of a smaller diameter is rotatably connected to the main concrete conduit. The extreme links of the telescopic section of the concrete conduit are fixed to the extreme links of the additional telescopic section of the boom, and the extreme link of a smaller diameter is attached to the link of a larger diameter for the indicated telescopic sections. To extend the links of the telescopic boom section, a hydraulic cylinder is installed in its cavity, connected to the control unit.

To rotate the telescopic sections, the extension link of the smaller diameter of the telescopic section of the concrete conduit together with the extreme link of the larger diameter of the telescopic section of the boom are mounted on a rotary platform, which is connected to a hydraulic motor mounted on the end section of the boom, with the possibility of dismantling, while moving in a vertical plane the telescopic boom section is connected to a hydraulic cylinder mounted on a turntable.

The technical result is achieved by the fact that the telescopic section of the concrete conduit mounted on the telescopic section, mounted on the root section, is distributed targeted to the installation site, which reduces the proportion of manual labor in the process of performing concrete work, reduces the required number of parking lots during concreting, increases the working area for servicing the concrete pump and ensures the safety of concrete work at height.

Designs of distribution arrows of the concrete pump, characterized by the combination of essential features proposed as an invention, have not been found in known sources of information, which confirms the novelty of the invention. The prior art also revealed no solutions having features that match the distinguishing features of the present invention. Therefore, the invention meets the criterion of "inventive step".

Figure 1 shows a General view of a concrete pump. Figure 2 - telescopic section of the distribution boom with a telescopic concrete duct. Figure 3 is a section aa of figure 2, figure 4 is a view B of figure 3, figure 5 is a view of figure 3.

The concrete pump (Fig. 1) consists of a base vehicle 1, on the chassis 2 of which there is a distribution boom 3 with a concrete pump 4, to the end section 5 of which a removable telescopic additional section 6 with a telescopic section 7 of the concrete conduit 8 is fixed.

The removable telescopic additional section 6 of the boom 3 (Fig. 1) consists of an outer link 9 of a larger diameter and two telescopic telescopic extension links 10, 11 of a shorter length (it is possible to make a telescopic section with a different number of links) (Fig. 2). The end link 9 of the telescopic additional boom section with the end link 12 of the telescopic section of the concrete conduit (mounted to the main concrete conduit 8 rotatably mounted on it) is mounted on a turntable 13 to provide rotation up to 360 °, for example, at a speed of 1-1.5 rpm The rotation is carried out by a hydraulic gear motor 14, mounted on the end section 5 of the distribution boom 3 with the possibility of dismantling. Telescopic sections can be deflected in a vertical plane at an angle of up to 90 ° with the help of a hydraulic cylinder 15, mounted on the extreme link 9 and the rotary platform 13.

The telescopic concrete conduit consists of three telescopic sections 12, 16, 17, the extreme of which 12, 17 are fixed to the extreme links 9, 11 of the telescopic boom section, respectively (Fig. 3). The mating links of the telescopic section of the concrete duct are sealed relative to each other. In FIG. 4 and 5 show the execution of two compaction units of the telescopic section of the concrete duct (types B and C).

Assembling a telescopic concrete duct is as follows.

The links of the telescopic concrete duct are inserted (Figs. 4, 5) one into another through seals 18 (seals can be made of elastic, plastic material, for example rubber, fluoroplastic). After inserting the sections, they are locked by flanges 19 and nuts 20. The assembled telescopic section 7 (Fig. 1) is mounted by a movable connection (with the possibility of rotation) to the concrete conduit 8, through which the concrete mixture is supplied. When lengthening or shortening the telescopic section of the boom 6 (Fig. 1), the links 12, 16, 17 of the telescopic section of the concrete conduit 7, mounted on the links of the telescopic boom, also extend or retract into each other. Seals 18 do not allow concrete mix to fall into the space between sections 12, 16, 17 of different diameters.

The device operates as follows.

The concrete mixture enters the concrete pump 4 and is fed through the concrete conduit 8 to the pouring place. The operator through the control unit distributes concrete by manipulating the distribution boom, controlled by the hydraulic system of the base vehicle of the concrete pump. The articulated boom sections are laid out with the help of hydraulic cylinders to the required length and can be rotated due to the rotation of the support column. Using a hydraulic motor 14, the turntable 13 is rotated by the desired angle. Together with the turntable 13, the telescopic section 6 of the boom 3 is rotated together with the telescopic sections of the concrete conduit 12, 16, 17 fixed to it. The length of the telescopic section of the concrete conduit 7 is changed by extending the links 12, 16, 17 due to their attachment to the links 9, 10 11 of the telescopic additional section of the boom 6, which are extended by a hydraulic cylinder placed in its cavity (not shown in the drawings). This allows you to accurately deliver the concrete mixture to the installation site without the use of manual labor.

After orienting the output link of the concrete conduit to the place of concrete laying and the concrete exit from the hole of the concrete conduit, additional sections 6 and 7 can be further moved.

Thus, an increase in the operational performance of the concrete pump is achieved by controlling the concrete supply through the concrete pipeline and delivering it addressed to the place of laying, reducing the proportion of manual labor in the process of performing concrete work, reducing the required number of parking lots during concreting, and ensuring safety when performing concrete work at heights. The result of the proposed execution of the distribution boom of the concrete pump will be mechanized control of the concrete supply process, an increase in the working area of the device while maintaining stability and ensuring the performance of concrete work in cramped conditions, without moving the concrete pump itself.

Claims (3)

1. Distribution boom of a concrete pump, containing folding sections articulated and connected by means of hydraulic cylinders, one of which, the root, is mounted on the stand of the rotary device using a hinge, an arrow control unit and a concrete conduit, characterized in that it further comprises a removable telescopic section connected to the end section of the boom with the possibility of rotation through an angle of 360 ° and with the possibility of raising and lowering in a vertical plane, and the end of the concrete conduit is also equipped with telescopic section with a telescopic section of a smaller diameter connected to the main concrete conduit rotatably, while the extreme links of the telescopic section of the concrete conduit are fixed to the extreme links of the additional telescopic boom section, the outer link of a smaller diameter attached to the outer link of a larger diameter for the indicated telescopic sections, and to extend the links of the telescopic boom section, it is equipped with a hydraulic cylinder mounted in its cavity and connected to the control unit. 2. The distribution boom according to claim 1, characterized in that the extension link of a smaller diameter of the telescopic section of the concrete conduit together with the outer link of the larger diameter of the telescopic section of the boom are mounted on a rotary platform that is connected to a hydraulic motor fixed to the end section of the boom, while the telescopic section of the boom connected to a hydraulic motor mounted on a turntable. 3. The distribution boom according to claim 2, characterized in that the hydraulic motor is mounted on the end section of the boom with the possibility of dismantling it.

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