CN106121242A - The Non-intermittent of a kind of concrete at the uniform velocity pumping system - Google Patents
The Non-intermittent of a kind of concrete at the uniform velocity pumping system Download PDFInfo
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- CN106121242A CN106121242A CN201610637106.1A CN201610637106A CN106121242A CN 106121242 A CN106121242 A CN 106121242A CN 201610637106 A CN201610637106 A CN 201610637106A CN 106121242 A CN106121242 A CN 106121242A
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- concrete
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
- E04G21/04—Devices for both conveying and distributing
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- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The invention discloses the Non-intermittent at the uniform velocity pumping system of a kind of concrete, including power section, pull-on section, propelling movement section, stirring section and output section；Power section arranges by the hydraulic motor of variable capacity oil pump fuel feeding, and pull-on section arranges hopper, pushes section and arranges propelling movement pump, and stirring section arranges biaxial rneader and water injecting mechanism, and output section arranges outlet tube interface.The hopper, the propelling movement pump that are connected share same main shaft with blender, and main shaft is by fluid motor-driven；It is positioned on the main shaft of hopper section and feed auger leaf is set, be positioned on the main shaft pushing pump section and propelling movement spirillum is set, push spirochetal outward flange and press close to push pump housing inwall.This system uses and spirally pushes pump, is prevented effectively from the generation of plugging, simplifies hydraulic system, is conducive to saving maintenance cost；Vibrations when simultaneously also significantly lower in pumping and noise, beneficially energy-saving and environmental protection.
Description
Technical field
The invention belongs to the concrete conveying equipment in constructional engineering machinery, especially relate to a kind of utilization and spirally push
Pump realizes the pumping system of concrete Non-intermittent conveying.
Background technology
In existing building engineering construction, especially high-rise or large-scale construction engineering, concrete mixer, drags pump, vehicle-mounted
The equipment such as pump are requisite engineering machinery, be commonly used to and concrete pipeline carries out distance, big height pumping, to carry
High efficiency of construction., often there is " plugging ", cause the reason of this problem, remove concrete itself in the pipeline conveying of concrete
Quality, conveyance conduit quality, pipeline arrange and in construction inevitably outside the factor such as time-out, the knot of existing pumping system
Structure design itself is main cause.
Concrete pumping machinery is the necessary equipment of construction, and its heart in fact of the pumping system in this equipment
Dirty.Presently used pumping system is mostly structure as shown in the accompanying drawings 1, including front end outlet tube 18, swing pipe 17,
Hopper 16, two, left and right conveying cylinder 15, arrange propelling movement piston 14, push piston 14 and be provided with inductive disks 13 in conveying cylinder 15.Push away
Backward stroke of the piston destination county is sent to be provided with stroke sensor 12.Pushing piston 14 to be promoted by piston rod 112, piston rod 112 is positioned at oil
In cylinder 113, piston rod 112 end arranges oil cylinder piston 111, and oil cylinder piston 111 is controlled by the second electro-hydraulic reversing valve B, swing pipe
17 are driven by plunger type pendulum valve oil cylinder 19, and plunger type pendulum valve oil cylinder 19 is controlled by the first electro-hydraulic reversing valve A, and the oil cylinder of left and right is by even
Siphunculus 114 forms closed-loop path.Its pump action mainly by the first electro-hydraulic reversing valve A control swing pipe 17 realize commutation,
Second electro-hydraulic reversing valve B carries cylinder and the propelling movement of oil cylinder alternate cycles about controlling.
As it has been described above, two, left and right conveying cylinder has the ofest short duration " pause " between alternately, exactly because this
Of short duration " pause ", accordingly, the concrete of pumping also can be sent out in outlet tube 18 and the elongate conduit connected with outlet tube 18
Raw time-out, adding concrete natively has bigger frictional resistance in elongated pipeline, and reality is from being fed to discharging, mixed
Solidifying soil to pause in pipeline and reach 5-30 time per minute more than, and due to " confficient of static friction ", to be more than " coefficient of kinetic friction " etc. former
Cause, so easily causing plugging because of time-out.Once there is plugging, in order to avoid causing concrete " interlayer " to affect engineering matter
Amount, must get rid of pipeline plugging accident (being usually no more than two hours) as early as possible.The preferable pumping equipment of quality can take positive and negative pumping mode
Carry out failture evacuation, but due to equipment the most ceaselessly " pause ", therefore plugging phenomenon occurs unavoidably again, and sometimes
When the positive and negative pumping of the equipment that runs into all cannot be dredged, must stop pumping, section dismounting, expends a large amount of manpower and materials, more can affect district by district
Construction quality.
And, current batch (-type) replaces pumping equipment, and structure member is complex, and repeatedly start and stop are easily sent out for a long time
Raw mechanical breakdown, such as swing pipe 17 when realizing commutation, need to will be located in the broken sand of pipeline joint, stone rapidly cut off with
Realizing frequently alternately sealing connection, mechanical performance and the stability of parts are desirable that higher by this, belong to consumable accessory, once occur
Damaging, replacement cost is the highest；Meanwhile, during concrete pumping, noise and vibration are the biggest, are unfavorable for environmental protection.
The Chinese patent of Publication No. " CN 102094781 A ", discloses one " concrete machinery uninterrupted pumping system
System ", use helical structure inclined-plane conveying principle, it is achieved concrete continuous, steadily carry.But the disclosure application simply will
Helical blade applies to concrete conveyance, and in terms of disclosed technology contents, it beyond doubt can be real to the horizontal feed of concrete
Existing, but the huge propelling movement power for being carried from low to high by concrete and long-distance sand transport needs does not proposes further
Solution.It practice, spiral pumping needs the most how the key problem solved ensures the propelling movement power of spiral pushing, with
Meet construction requirement so that it is at least in fed distance (highly), reach the standard close with existing intermittent delivery equipment, this
Relate to the parameter designing of helical-blade, the cooperation of each associated devices and supplied materials require.
Summary of the invention
Replace that the common easy plugging of pumping system, parts are fragile and work to solve existing batch (-type) as above
Make the defects such as noise is big, it is contemplated that propose the spiral Non-intermittent pumping system of a kind of concrete.
The technical scheme that the present invention is used for achieving the above object is as follows:
The Non-intermittent of concrete at the uniform velocity pumping system, including the power section set gradually, pull-on section, propelling movement section, stirring
Section and output section.Power section arranges hydraulic motor, and pull-on section arranges hopper, pushes section and arranges propelling movement pump, stirring
Section arranges blender, and output section arranges general outlet tube interface, and the hopper being connected, propelling movement pump share same with blender
One main shaft, main shaft is by the fluid motor-driven of variable pump fuel feeding；It is positioned on the main shaft of hopper section and feed auger leaf is set, be positioned at and push away
Send and propelling movement spirillum is set on the main shaft of pump section, push spirochetal outward flange and press close to push pump housing inwall；Described blender sets
Put water injecting mechanism.
The Non-intermittent of concrete in accordance with the above at the uniform velocity pumping system, described propelling movement pump housing inwall arrange some axially
Groove or the helicla flute of similar bore inwall, to increase concrete and to push between pump inwall the frictional force at circumferencial direction so that
Push the frictional force of pump housing inwall and concrete more than the frictional force pushed between spirillum and concrete.
Hopper and push pump feed needs be suitable for pipeline conveying dry concrete, and feed agitated machine and
Engineering construction standard is met after water injecting mechanism；Charging is preferably the dry concrete of slump 60mm.
Blender is Double shaft stirring, and blender top arranges detection window, bottom arranges floss hole.
The main shaft being positioned at blender section is hollow structure, arranges water delivery duct in hollow structure；Then water injecting mechanism includes: set
Be placed in the water filling central switching head of main shaft end, the water delivery duct arranged along main shaft from water filling central switching head and
The end that is arranged at of water delivery hole link pushes spirochetal hole for water spraying, and hole for water spraying aperture is towards in blender.
Water filling central switching head includes that water filling port and positioning pin rod, main shaft tail end also set up the chain for dragging water pump
Wheel；Described hole for water spraying at least two.
Preferably, the working speed of described hydraulic motor is 0 ~ 30 rev/min, and the external diameter of feed auger leaf is more than pushing spiral shell
Rotation body diameter 10% ~ 20%.
Use the concrete Non-intermittent at the uniform velocity pumping system of the present invention of above structure, utilize the hydraulic pressure horse of low-speed big
Reaching drive shaft drives spirillum to rotate, it is achieved concrete Non-intermittent pumps.Its idiographic flow is, is first provided by mixing plant
" dry " concrete (being i.e. suitable for the concrete that the water content of spiral pump is relatively low) adds in hopper, by spirally pushing pump
It is pumped into blender stirring, dilution, finally from the standard concrete of outlet tube output construction requirement.
Present invention achieves following beneficial effect: use the spiral Non-intermittent at the uniform velocity delivering concrete pushing pump, effectively
Avoiding the generation of plugging, the frictional force owing to using " dry " concrete, push between spirillum and concrete is less than and pushes again
Concrete pressure in the structure design of the frictional force of pump housing inwall and concrete and propelling movement pump can be with spirochetal axial length
The relation spent and be gradually incremented by, can adjust the measures such as spirochetal overall length according to required concrete pressure, be allowed to pump distance
And the most at least can with existing batch (-type) pumping equipment near or above；Non-intermittent, at the uniform velocity pump and do not exist " commutation is sheared "
Enormous impact, thus be effectively improved the service life of mechanical part, reduce energy consumption and noise, beneficially energy-saving ring
Protect.
Accompanying drawing explanation
Fig. 1 is the core texture schematic diagram of existing batch (-type) pumping equipment；
Fig. 2 is the general assembly structural representation of the concrete Non-intermittent at the uniform velocity pumping system of the embodiment of the present invention；
Fig. 3 is the Section A-A schematic diagram of Fig. 2；
Fig. 4 is water structure figure and the close-up schematic view of water filling central switching head of blender in Fig. 2.
Detailed description of the invention
With embodiment, the technical scheme of the concrete Non-intermittent at the uniform velocity pumping system of the present invention is carried out below in conjunction with the accompanying drawings
Describe in detail.
As in figure 2 it is shown, the Non-intermittent of concrete at the uniform velocity pumping system, including power section I, pull-on section II, push district
Section III, stirring section IV and output section V.Power section I is arranged by the hydraulic motor 21 of variable pump fuel feeding, pull-on section II
Hopper 22 is set, pushes section III and propelling movement pump 23 is set；Stirring section IV arranges blender 25, and output section V arranges general
Outlet tube interface 26, the hopper 22 being connected, pushes pump 23 and shares same main shaft 27 with blender 25, and main shaft 27 is by hydraulic motor
21 drive；It is positioned on the main shaft of hopper section and feed auger leaf 221 is set, be positioned on the main shaft pushing pump section and propelling movement spirillum is set
231, the outward flange pushing spirillum 231 presses close to push the pump housing 23 inwall；Described blender 25 arranges water injecting mechanism.
Push the pump housing 23 inwall and some axial grooves or the helicla flute of similar bore inwall are set, to increase concrete and propelling movement
In the frictional force of circumferencial direction between the pump housing 23 inwall so that push the pump housing 23 inwall frictional force with concrete more than pushing spiral shell
Frictional force between rotation body 231 and concrete.
The feed needs of hopper 22 is dry concrete, and meets engineering after feeding agitated machine and water injecting mechanism thereof and execute
Work standard；Charging selects the dry concrete of the slump≤60mm.
Blender 25 is Double shaft stirring, and blender top arranges detection window 257, bottom arranges floss hole 258.
The main shaft being positioned at blender section arranges water delivery duct 244；Set along main shaft from water filling central switching 24s
Put the end that water delivery duct 244 connects with water delivery duct 244 to push spirillum and arrange at least two aperture towards blender 25
Interior hole for water spraying 245；Water filling central switching head includes water filling port 242 and positioning pin rod 243, and main shaft tail also sets up for dragging
The sprocket wheel 241 of dynamic water pump.Water filling central switching 24 is supplied water and end pushes spirillum water outlet, water filling port 242 and every turn of row
The adjustable water pump of the water yield connects, and the rotating speed of this water pump becomes certain speed ratio transmission through sprocket wheel 241 with main shaft 27.
The external diameter of feed auger leaf is more than pushing spirillum external diameter 20%.
With theoretical maximum concrete discharge capacity as 20m/h as a example by explanation push the parameter of spirillum 231 (in reality, concrete be
40m/h, 60m/h, 80m/h is related to more than broad theory discharge capacity ... etc.):
Big footpath 400mm, central diameter 320mm, path 210mm, single line helical pitch 220mm, central diameter lead angle 12.34 °, central diameter helical pitch exhibition
Open long 1029.1mm；
Spirillum " u "-shaped fluted shaft is to area of section U=1.427 dm；
Push that spirillum is every turns discharge capacity Qu=central diameter helical pitch launches long * " u "-shaped fluted shaft to area of section ≈ 1.43*10.29 ≈ 14.7
Rise/turn；
When the concrete discharge capacity of outlet tube is 20m/h, the speed of mainshaft=(20m/h*1000)/(14.7L/r*60m) ≈ 22.67r/
min。
Push the frictional force between spirillum and concrete less than the frictional force pushing pump inwall and concrete circular circumferential direction；
The inwall pushing pump arranges some axial grooves or the helicla flute of similar bore inwall.
Outlet tube interface 26 can be connected with the standard output pipe of existing pumping Device-General.
As it is shown on figure 3, rabbling mechanism 25 the most built-in two by the main shaft 253 of synchromesh gear 252 transmission with auxiliary
Shaft 254, shaft is driven by stirring motor 251 with blade 255,256, main shaft 253, and stirring motor is by variable
Oil pump feed, it is preferred that after the rotational speed optimization of shaft can also after use dosing pump fuel feeding instead.
During system work, start hydraulic motor 21 and drive main shaft 27 to rotate, thus feed auger leaf 221 and propelling movement spirillum
231 rotate, and start stirring motor 251 and drive shaft and blade thereof to rotate.The no slump concrete shipped by mixing plant is from hopper
22 add, and under feed auger leaf 221 drives with propelling movement spirillum 231, dry concrete is transported to stirring along pushing pump 23
Machine 25；
From water filling port 242 water filling, water sprays after water delivery duct 244, hole for water spraying 245 in blender 25, makes dry mix
Solidifying soil is diluted, and the concrete after dilution transfers to the scope of operation from discharging opening through the general conveying pipe that outlet tube 26 is external.Note
The water injection rate at the mouth of a river 242 is relevant to the discharging speed of main shaft 27 rotating speed, the concrete slump of charging and outlet tube, Ke Yigen
According to needs, water injection rate is adjusted.
Native system uses spiral propelling movement, can realize continuously and smoothly's pumping of concrete, effectively prevent conventional batch
The frequent plugging phenomenon of pumping equipment.
Owing to the above-mentioned parameter pushing spirillum 231 is arranged, and it is less than concrete with concrete friction power and pushes away
Send the frictional force of the pump housing 23 inwall, under the hydraulic motor 21 of the low-speed big that rotating speed is 0 ~ 30 rev/min pushes, Ke Yibao
Demonstrate,prove sufficiently large propelling movement power.Then by water filling, stir, dilute after concrete pump deliver to certain altitude and distance, thus meet and execute
Work requirement.
And the present invention uses spiral propelling movement, structural member work is more stable, be hardly damaged, and noise is low, is more beneficial for subtracting
Few fault, reduction energy consumption.
The foregoing is only the preferred embodiments of the present invention, not thereby limit the scope of the claims of the present invention, every utilization
Equivalent structure or equivalence flow process that description of the invention and accompanying drawing content are made convert, or it is relevant to be directly or indirectly used in other
Technical field, be the most in like manner included in the scope of patent protection of the present invention.
Claims (10)
1. the Non-intermittent of a concrete at the uniform velocity pumping system, including the power section set gradually, pull-on section, propelling movement district
Section, stirring section and output section. power section arranges hydraulic motor, and pull-on section arranges hopper, pushes section and arranges propelling movement
Pump, stirring section arranges blender, and output section arranges general outlet tube interface, it is characterised in that:
The hopper, the propelling movement pump that are connected share same main shaft with blender, and main shaft is by the fluid motor-driven of variable pump fuel feeding；
It is positioned on the main shaft of hopper section and feed auger leaf is set, be positioned on the main shaft pushing pump section and propelling movement spirillum is set, push
Spirochetal outward flange presses close to push pump housing inwall, and the external diameter of feed auger leaf is more than pushing spirillum external diameter 10% ~ 20%；
Described blender arranges water injecting mechanism.
The Non-intermittent of concrete the most according to claim 1 at the uniform velocity pumping system, it is characterised in that: in the described propelling movement pump housing
Wall arranges some axial grooves or helicla flute, to increase concrete and to push between the pump housing inwall frictional force at circumferencial direction, makes
The frictional force of pump housing inwall and concrete must be pushed more than the frictional force pushed between spirillum and concrete.
The Non-intermittent of concrete the most according to claim 1 and 2 at the uniform velocity pumping system, it is characterised in that: hopper and propelling movement
The supplied materials of pump requires to be dry concrete, creates pressure condition for pipe long-distance conveying.
The Non-intermittent of concrete the most according to claim 3 at the uniform velocity pumping system, it is characterised in that: preferably concrete is for collapsing
The dry concrete of degree of falling 60mm.
The Non-intermittent of concrete the most according to claim 1 at the uniform velocity pumping system, it is characterised in that: described blender is double
Axle synchronizes stirring, and blender top arranges detection window, bottom arranges floss hole.
The Non-intermittent of concrete the most according to claim 5 at the uniform velocity pumping system, it is characterised in that: agitated machine water filling is stirred
Concrete after mixing meets pipe long-distance conveying and engineering construction standard simultaneously.
The Non-intermittent of concrete at the uniform velocity pumping system the most according to claim 1 or 5, it is characterised in that be positioned at described in: and stir
The main shaft mixing machine section arranges water delivery duct, then water injecting mechanism includes: be arranged at the water filling central switching head of main shaft end, along main
Water delivery duct and the end that is arranged at of water delivery hole link that axle is arranged push the hole for water spraying on spirillum, water spray aperture towards
In blender.
The Non-intermittent of concrete the most according to claim 7 at the uniform velocity pumping system, it is characterised in that: described water injecting mechanism
Water filling central switching head is provided with positioning pin rod, and described main shaft tail end also sets up the sprocket wheel for dragging water pump, described water spray
Hole at least two.
The Non-intermittent of concrete the most according to claim 8 at the uniform velocity pumping system, it is characterised in that: main shaft and water pump are by chain
Wheel is by a constant-speed ratio relation transmission, and the every of water pump turns displacement scalable.
The Non-intermittent of concrete the most according to claim 1 at the uniform velocity pumping system, it is characterised in that: described hydraulic motor
Working speed be 0 ~ 30 rev/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610637106.1A CN106121242A (en) | 2016-08-07 | 2016-08-07 | The Non-intermittent of a kind of concrete at the uniform velocity pumping system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610637106.1A CN106121242A (en) | 2016-08-07 | 2016-08-07 | The Non-intermittent of a kind of concrete at the uniform velocity pumping system |
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| CN106121242A true CN106121242A (en) | 2016-11-16 |
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| CN201610637106.1A Pending CN106121242A (en) | 2016-08-07 | 2016-08-07 | The Non-intermittent of a kind of concrete at the uniform velocity pumping system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108256748A (en) * | 2017-12-29 | 2018-07-06 | 上海建工集团股份有限公司 | A kind of concrete pumpability control method based on rheological properties |
| CN113894935A (en) * | 2021-10-28 | 2022-01-07 | 中国重汽集团青岛重工有限公司 | Electric control hydraulic intelligent pump mixer truck and control method thereof |
| CN114233599A (en) * | 2021-11-25 | 2022-03-25 | 徐州徐工施维英机械有限公司 | Concrete pumping machine and control method for preventing pipe blockage thereof |
-
2016
- 2016-08-07 CN CN201610637106.1A patent/CN106121242A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108256748A (en) * | 2017-12-29 | 2018-07-06 | 上海建工集团股份有限公司 | A kind of concrete pumpability control method based on rheological properties |
| CN108256748B (en) * | 2017-12-29 | 2021-05-25 | 上海建工集团股份有限公司 | Concrete pumpability control method based on rheological characteristics |
| CN113894935A (en) * | 2021-10-28 | 2022-01-07 | 中国重汽集团青岛重工有限公司 | Electric control hydraulic intelligent pump mixer truck and control method thereof |
| CN114233599A (en) * | 2021-11-25 | 2022-03-25 | 徐州徐工施维英机械有限公司 | Concrete pumping machine and control method for preventing pipe blockage thereof |
| CN114233599B (en) * | 2021-11-25 | 2023-12-12 | 徐州徐工施维英机械有限公司 | Concrete pumping machine and control method of pre-blocking prevention pipe of concrete pumping machine |
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Application publication date: 20161116 |