EP4098871A1 - Pumpvorrichtung - Google Patents

Pumpvorrichtung Download PDF

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Publication number
EP4098871A1
EP4098871A1 EP22176517.5A EP22176517A EP4098871A1 EP 4098871 A1 EP4098871 A1 EP 4098871A1 EP 22176517 A EP22176517 A EP 22176517A EP 4098871 A1 EP4098871 A1 EP 4098871A1
Authority
EP
European Patent Office
Prior art keywords
pumping
elements
bearing structure
pumping apparatus
pumping unit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP22176517.5A
Other languages
English (en)
French (fr)
Other versions
EP4098871B1 (de
Inventor
Emanuele ZORZI
Samuele Montorfano
Paolo Dario Maini
Paolo Sala
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CIFA SpA
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CIFA SpA
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Publication date
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Publication of EP4098871A1 publication Critical patent/EP4098871A1/de
Application granted granted Critical
Publication of EP4098871B1 publication Critical patent/EP4098871B1/de
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B15/00—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts
    • F04B15/02—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts the fluids being viscous or non-homogeneous
    • F04B15/023—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts the fluids being viscous or non-homogeneous supply of fluid to the pump by gravity through a hopper, e.g. without intake valve
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/001—Noise damping
    • F04B53/003—Noise damping by damping supports
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections

Definitions

  • the present invention concerns a pumping apparatus configured to pump material, for example concrete, from a containing compartment, for example installed on a vehicle, to a pipe for the distribution of said material.
  • material for example concrete
  • Pumping apparatuses configured to pump material, for example concrete, which comprise a pumping unit attached to a bearing structure.
  • the pumping unit usually comprises two pumping cylinders and an exchange valve, known to persons of skill in the art by the term "S" valve; the cylinders take the material from a containing compartment and pump it into an outlet pipe so that it can be distributed.
  • the pumping unit generates high vibrations and oscillations that derive from the movement of the pumping cylinders and the exchange valve.
  • the pumping unit is rigidly attached to the bearing structure and the vibrations and oscillations generated by its use are transmitted directly to the bearing structure itself, which is a disadvantage since it subjects to mechanical stresses many members of both the pumping unit and also of the bearing structure, especially when the latter consists of the frame of a heavy vehicle.
  • Document JP2015502477A describes a pumping apparatus for pumping concrete.
  • the apparatus comprises a pumping unit disposed on a support frame that allows to adjust the angle of inclination. Furthermore, the support frame is provided with an elastic support plate operatively associated with the pumping unit in order to dampen and reduce vibrations during the pumping operations.
  • Document CN109236603A describes a pumping apparatus for pumping concrete.
  • the apparatus comprises a pumping unit mounted on a base support, which is associated with a support device provided with support feet that incorporate shock-absorbing springs.
  • One purpose of the present invention is to provide a pumping apparatus in which the vibrations and oscillations generated by the pumping unit are dampened as much as possible and are not transmitted to the bearing structure.
  • Another purpose of the present invention is to provide a pumping apparatus which can also be easily installed on any type of suitable vehicle, and in which the vibrations and oscillations generated by the pumping unit are not transmitted to the frame of the vehicle, to consequently improve the stability of the outlet pipe during use and therefore the quality of the pumping.
  • Another purpose of the present invention is to provide a pumping apparatus in which the outlet pipe can be used with greater ease and precision.
  • the Applicant has devised, tested and embodied the present invention to overcome the shortcomings of the state of the art and to obtain these and other purposes and advantages.
  • a pumping apparatus comprises a bearing structure and a pumping unit which is disposed mainly along a longitudinal axis and is provided with pumping means which are configured to pump material from a feed compartment toward an outlet end.
  • the pumping means are of the pumping barrel/cylinder type.
  • the pumping apparatus also comprises damping means interposed between the pumping unit and the bearing structure in order to dampen at least the roll of the pumping unit with respect to the longitudinal axis.
  • the damping means are configured in such a way as to prevent the translation of the pumping unit.
  • the damping means comprise at least three damper members.
  • At least one damper member is associated respectively with the feed compartment, or hopper, which feeds the concrete to the pumping means, with a connection element, which acts as a connection interface and has the function of supporting the movement of the pumping cylinders with respect to the corresponding barrel, and with the pumping means.
  • the damper members are five.
  • the feed compartment comprises two lateral walls disposed symmetrical with respect to the longitudinal axis. Furthermore, a first and a second of the support elements of the bearing structure are disposed in correspondence with the two lateral walls of the feed compartment. In addition, each of the two lateral walls of the feed compartment comprises a rest element disposed in correspondence with the first support element and the second support element respectively, so that a first and a second damper element are interposed between the first and second support element and a corresponding rest element.
  • the pumping unit comprises, in a median zone thereof, two further rest elements disposed symmetrically with respect to the longitudinal axis. Furthermore, a third and a fourth of the support elements of the bearing structure are disposed substantially in correspondence with the two further rest elements, in such a way that a third and a fourth damper element are interposed between the third and fourth support element and the two further rest elements.
  • the pumping means comprise two cylindrical tubular elements disposed side by side and parallel to each other, and coaxially associated with two corresponding pumping cylinders. Furthermore, the median zone is substantially located in correspondence with one end of the pumping cylinders close to the cylindrical tubular elements.
  • a fifth of the support elements lies substantially on the longitudinal axis, in correspondence with a front part of the pumping unit on the opposite side with respect to the feed compartment, and it is attached to the bearing structure. Furthermore, a fifth of the damper elements is interposed between the fifth support element and the front part of the pumping unit.
  • the fifth support element is positioned substantially at approximately 2/3 of the length of the pumping cylinders, starting from their end where they are associated with the cylindrical elements.
  • the present invention also concerns a vehicle on which the pumping apparatus as above is installed.
  • the bearing structure comprises, or consists of, a frame of the vehicle and the pumping unit is configured to pump concrete.
  • a pumping apparatus 10 comprises a bearing structure 11 on which a pumping unit 13 is mounted, which is configured to pump a material, such as concrete for example, from a containing compartment 15 to an outlet aperture 16.
  • the containing compartment 15, as seen in figs. 1 and 3 can have the shape of a hopper into which the material can be introduced by another mean, for example a truck mixer.
  • a pipe 17 is connected to the outlet aperture 16, which conveys the material, for example by means of an articulated arm which can be tens of meters long, toward a destination location, for example a building under construction, or an area of a construction site in general.
  • the pumping apparatus 10 is mounted on a vehicle 18, for example a heavy truck, and the bearing structure 11 comprises, or consists of, the frame of the vehicle 18.
  • the pumping unit 13 is of the type described in the Italian patent for industrial invention No. 1.401.514 of the Applicant.
  • the pumping unit 13 comprises two cylindrical tubular elements, or barrels, 19 disposed side by side and parallel to each other.
  • the two barrels 19 are coaxially associated with two corresponding pumping cylinders 20, of the fluid-dynamic type, which are disposed parallel to a longitudinal axis X ( figs. 2 , 3 and 4 ) which is inclined by an angle ⁇ ( figs. 2 and 6 ), for example comprised between about 10° and about 30°, with respect to a horizontal plane.
  • X figs. 2 , 3 and 4
  • ⁇ figs. 2 and 6
  • the two barrels 19 are connected to the pipe 17 by means of an exchange valve 21, known to the persons of skill in the art with the term "S valve", which is disposed inside the containing compartment 15 and is moved by two exchange cylinders of the fluid dynamic type, which are located on a plane orthogonal to the longitudinal axis X.
  • the reciprocating motion of the four pumping and exchange cylinders transmits thrusts and vibrations onto the entire pumping unit 13 and therefore onto the bearing structure 11 and to the vehicle 18.
  • the reciprocating motion of the pumping cylinders 20 affects the attachment points of both the latter and the associated barrels 19, and also the attachment points of the containing compartment 15 to the bearing structure 11.
  • the reciprocating motion of the exchange cylinders mainly affects the attachment points of the containing compartment 15 to the bearing structure 11.
  • the different center distance between the different attachment points causes the vibrations induced by the exchange cylinders to prevail over those of the pumping cylinders 20, generating a roll that has the longitudinal axis X as the center of rotation.
  • the pumping unit 13 has a very significant mass, of the order of about 3,500 kg, and with each of its cycles, which lasts a few seconds, it moves a considerable amount of material, the mass of which can be, for example, even greater than 400 kg, therefore it generates strong vibrations and oscillations deriving above all from the reciprocating motion both of the two pumping cylinders 20 and also of the two exchange cylinders of the exchange valve 21, as disclosed above.
  • damping means 22 are interposed between the pumping unit 13 and the bearing structure 11 in order to dampen the vibrations generated, during use, by the pumping unit 13, as will be described below.
  • the damping means 22 comprise five damper elements 23, 24, 25, 26 and 27, which are mounted on as many support elements 29, 30, 31, 32 and 33 respectively of the bearing structure 11.
  • the support elements 29 and 30, on which the damper elements 23 and 24 are mounted are disposed substantially on the sides of the containing compartment 15 and preferably in correspondence with a lower part thereof.
  • the containing compartment 15 comprises two lateral fins 35 and 36 disposed in correspondence with the support elements 29 and 30, in such a way that the damper elements 23 and 24 are interposed between the latter and the two lateral fins 35 and 36.
  • the support elements 31 and 32, on which the damper elements 25 and 26 are mounted, are attached on two substantially horizontal longitudinal members 37 of the bearing structure 11, substantially on the sides of a rear zone of the pumping cylinders 20, close to the front part of the corresponding barrels 19.
  • the two pumping cylinders 20 comprise, in their rear zone, a connection element 39 disposed transversely to the longitudinal axis X and provided with two lateral fins 40 and 41 which are disposed in correspondence with the support elements 31 and 32, so that the damper elements 25 and 26 are interposed between the latter and the two lateral fins 40 and 41.
  • connection element 39 is a barrel/cylinder connection interface and it has the function of supporting the movement of the pumping cylinders 20.
  • the fifth support element 33 on which the damper element 27 is mounted, is disposed orthogonally and substantially in correspondence with the longitudinal axis X of the pumping unit 13, and in particular on a sleeper 42 attached in the front part of the two longitudinal members 37 ( figs. 2 and 4 ).
  • the fifth support element 33 is positioned substantially at approximately 2/3 of the length of the pumping cylinders 20, starting from their rear ends, where they are associated with the barrels 19.
  • each of the damper elements 23, 24, 25 and 26 comprises a block of elastic material, such as rubber for example, substantially having the shape of a parallelepiped, to which there is connected, in the lower part, a corresponding support element 29, 30, 31 and 32 respectively and, in the upper part, a corresponding lateral fin 35, 36, 40 and 41 respectively.
  • fig. 5 shows only the damper element 24 connected to the support element 30, it being understood that the other three damper elements 23, 25 and 26 are the same and/or specular to it, with respect to the longitudinal axis X of the pumping unit 13.
  • the fifth damper element 27 instead comprises another block of elastic material, such as rubber for example, interposed between the sleeper 42 and the two pumping cylinders 20.
  • the bearing structure 11 also comprises two bars 43 attached to the two longitudinal members 37 and inclined upward and toward the front part.
  • the sleeper 42 is attached above the two bars 43 and a tie rod 45 connects it to the fifth support element 33, so that the damper element 27 is in any case interposed between the support element 33 and the pumping unit 13.
  • two transverse elements 46 parallel to each other, have a rest surface 47 on which the two pumping cylinders 20 rest.
  • the two transverse elements 46 are connected to each other by means of one or more connection elements 49, only one of which is schematically shown in fig. 7 , which are inserted in the damper element 27.
  • the damper elements 23, 24, 25, 26 and 27 constrain the pumping unit 13 in the degrees of freedom relative to the displacement, and they are oriented in such a way as to allow the roll of the pumping unit 13 around the longitudinal axis X.
  • the damping of the roll around the longitudinal axis X allows to considerably reduce the vibrations transmitted to the bearing structure 11, also improving the stability and durability of the vehicle 18 in an operating condition, in particular when the pipe 17 is extended. In this way, the safety and precision in the operating phase are significantly increased.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
  • Cyclones (AREA)
  • Glass Compositions (AREA)
  • Eye Examination Apparatus (AREA)
  • Vibration Prevention Devices (AREA)
EP22176517.5A 2021-06-01 2022-05-31 Pumpvorrichtung Active EP4098871B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT102021000014276A IT202100014276A1 (it) 2021-06-01 2021-06-01 Apparecchiatura di pompaggio

Publications (2)

Publication Number Publication Date
EP4098871A1 true EP4098871A1 (de) 2022-12-07
EP4098871B1 EP4098871B1 (de) 2024-03-20

Family

ID=77519593

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22176517.5A Active EP4098871B1 (de) 2021-06-01 2022-05-31 Pumpvorrichtung

Country Status (2)

Country Link
EP (1) EP4098871B1 (de)
IT (1) IT202100014276A1 (de)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1401514B1 (it) 2010-08-03 2013-07-26 Cifa S P A Unico Socio Gruppo pompante per una macchina di distribuzione di calcestruzzo.
JP2015502477A (ja) 2011-11-09 2015-01-22 中聯重科股▲ふん▼有限公司 コンクリート・ポンプ・ユニットの据付構造体およびコンクリートポンプ装置
WO2015068754A1 (ja) * 2013-11-07 2015-05-14 サンデン株式会社 電動圧縮機の取付構造
CN109236603A (zh) 2018-09-04 2019-01-18 安徽明光市瑞升机械有限公司 一种用于建筑的混凝土泵
US20190331110A1 (en) 2018-04-27 2019-10-31 Ameriforge Group Inc. Well service pump system joint
CN110439774A (zh) * 2019-07-16 2019-11-12 徐州鼎能混凝土制品有限公司 一种缓冲式强排混凝土泵

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1401514B1 (it) 2010-08-03 2013-07-26 Cifa S P A Unico Socio Gruppo pompante per una macchina di distribuzione di calcestruzzo.
JP2015502477A (ja) 2011-11-09 2015-01-22 中聯重科股▲ふん▼有限公司 コンクリート・ポンプ・ユニットの据付構造体およびコンクリートポンプ装置
WO2015068754A1 (ja) * 2013-11-07 2015-05-14 サンデン株式会社 電動圧縮機の取付構造
US20190331110A1 (en) 2018-04-27 2019-10-31 Ameriforge Group Inc. Well service pump system joint
CN109236603A (zh) 2018-09-04 2019-01-18 安徽明光市瑞升机械有限公司 一种用于建筑的混凝土泵
CN110439774A (zh) * 2019-07-16 2019-11-12 徐州鼎能混凝土制品有限公司 一种缓冲式强排混凝土泵

Also Published As

Publication number Publication date
IT202100014276A1 (it) 2022-12-01
EP4098871B1 (de) 2024-03-20

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