CN2752480Y - Concrete pump - Google Patents
Concrete pump Download PDFInfo
- Publication number
- CN2752480Y CN2752480Y CN 200420108705 CN200420108705U CN2752480Y CN 2752480 Y CN2752480 Y CN 2752480Y CN 200420108705 CN200420108705 CN 200420108705 CN 200420108705 U CN200420108705 U CN 200420108705U CN 2752480 Y CN2752480 Y CN 2752480Y
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- CN
- China
- Prior art keywords
- concrete
- cylinder
- pumping mechanism
- hopper
- concrete pump
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a concrete pump. A cylinder opening of a concrete cylinder is directly communicated with an input opening of a conveying pipeline when a piston rod is in a state of push and press stroke and is connected with a hopper when the piston rod is in a state of inlet stroke through the reciprocating swing of a pumping mechanism. The utility model has the advantages that the pumping mechanism is directly designed into the style of swinging back and forth; the cylinder opening of the concrete cylinder is directly communicated with the input opening of the conveying pipeline when the piston rod is in a state of push and press stroke and is connected with the hopper when the piston rod is in a state of inlet stroke; in this way, material distribution can be carried out without the need of a distributing valve; thus, the sealing and the lubricating problems caused by valves adopted by the prior are avoided, and the utility model has the advantages of good service performance and convenient maintenance. Because no valve parts move in the hopper, the phenomenon of the segregation of concrete materials can not easily occur, and the pump has good material sucking performance. Because the pipe can not be easily blocked in the process of pumping, the pump has good service performance.
Description
Technical field
The utility model relates to concrete pump.
Background technique
Concrete pump of the prior art, mainly by hopper and stirring apparatus, pumping and distributing mechanism, hydraulic system, and conveyance conduit form.Pumping wherein and distributing mechanism then mainly partly are made up of oil hydraulic cylinder, concrete cylinder, support link and clack box etc.Its working principle then mainly is the co-ordination that drives two piston rods and concrete valve by oil hydraulic cylinder respectively, in turn concrete mix is pushed into conveyance conduit continuously.Distributing valve can make a concrete pumping cylinder be connected with hopper when induction stroke; Make simultaneously another piston rod be in pushing during stroke and delivery outlet communicate.Continue the circulation time piston reverses direction, distributing valve also simultaneously oppositely, make the suction of two concrete pumping cylinders and push stroke and realized exchange, circulation and so forth, thereby in hopper, suck concrete mix, continuously concrete mix is pushed into conveyance conduit through the distributing valve effect and carry out pouring practice.
The pumping of this form and distributing mechanism, distributing mechanism is wherein mainly realized by distributing valve.Distributing valve of the prior art: mainly contain gate valve, S valve, skirt valve and trunk valve.The valve of these several forms each has their pluses and minuses, but in use, owing to all be the distribution that realizes the concrete material by moving around of above-mentioned various valves, and the switch speed back and forth of above-mentioned valve must be very fast.The rotatingshaft of valve or sliding axle is stressed big like this, movement velocity is fast, and in high pressure concrete, work again, therefore need good lubricated and air-proof condition, and the pressure of lubricant oil is greater than concrete pressure, and the Sealing of rotatingshaft or sliding axle is worked in high pressure concrete, in case cleaning is clean or lubricated not in place, concrete solidifies on Sealing, Sealing follows the string, sealing effect reduces, and then the sand oar of high pressure concrete will be pressed into rotary part, makes valve accelerated wear test, so that damage threshold parts, shortened the working life of valve,, use inconvenient so need often it to be safeguarded and upgrade; On the other hand because valve quick switching at short notice can produce the space in the cylinder mouth short time of concrete pumping cylinder., slump thick as the concrete material filled out the full space of stream for a short time certain hour, at this moment the suction of concrete pumping cylinder begins, the concrete pumping cylinder can not be filled, when the cylinder mouth that next samsara valve is put this concrete pumping cylinder begins pumping,, just make real pump time delay owing to have the space in the cylinder, in addition since the oar material of good fluidity at first be sucked away, remaining aggregate is mobile poor, thereby cause concrete material segregation, the pumping difficulty, easy plugging etc. is unfavorable for that the phenomenon of concrete casting takes place.
Invention constitutes
The purpose of this utility model be to overcome deficiency of the prior art and provide a kind of simple in structure, usability good, concrete pump easy to maintenance.
The purpose of this utility model realizes by following approach.
Concrete pump, comprise hopper and stirring apparatus, pumping mechanism, hydraulic system and conveyance conduit, pumping mechanism comprises a plurality of oil hydraulic cylinders, a plurality of concrete cylinder, supports link, its structure outline is: described pumping mechanism directly is connected with the inlet opening of conveyance conduit when piston rod is in the pushing stroke by the cylinder mouth that swings back and forth, makes described concrete cylinder of himself, is connected with hopper when being in induction stroke.
Directly pumping mechanism is designed to do swinging back and forth, and makes wherein that the cylinder mouth of concrete cylinder directly is connected with the inlet opening of conveyance conduit when piston rod is in the pushing stroke, when being in induction stroke, be connected with hopper.So just need not to prepare burden, thereby avoided needing in the prior art to adopt sealing and the lubricated problem that valve member brought, thereby make the simple in structure easy to maintenance of this pumping mechanism by distributing valve; Again owing to there is not valve member to move in hopper, thereby make concrete material be not easy to take place segregation phenomenon, the suction of pump is good, is difficult for plugging in the pumping process, thereby makes the usability of this pump good; Push concrete material owing to the concrete concrete cylinder is directly docked with concrete delivery pipe again, this concrete pump pressure loss is little, height is imitated in conveying thereby make, and use occasion is wide.
The purpose of this utility model can also realize by following approach
The mode that pumping mechanism swings back and forth has a lot, below is several forms that the inventor provides:
A kind ofly be: described pumping mechanism on it, be positioned at a fulcrum on the center line of pumping mechanism and do and swing back and forth, the axis normal of this fulcrum is in the axis of concrete cylinder.
Pumping mechanism is to be positioned on the elongation line of pumping mechanism away from the center line of carrying pipe end around the fulcrum of swing.
Another kind is: described pumping mechanism is done back and forth swing around the axle that is parallel to the concrete cylinder axis.
Adopt the swing of this form, will make between concrete cylinder and the delivery pipe and can not produce the gap, and make the sealing between pumping mechanism and the hopper more reliable.
Another is: described pumping mechanism is whole parallel moving back and forth.
Pumping mechanism integral body is done parallel moving back and forth, and the integral rigidity of pump is good with making, and helps the use of high pressure occasion.
Scheme of the present utility model further can be achieved by the following scheme
Concrete pump is provided with accumulator at an end of described delivery pipe, and accumulator is connected with the delivery pipe of contiguous hopper end.
Delivery pipe place at that end of the close hopper of concrete pump is provided with accumulator, the twitch of the delivery pipe that the water hammering that may bring more slowly because of the swing of pumping mechanism with regard to available buffer causes.
Described accumulator is a kind of oil hydraulic cylinder or cylinder.
Make pumping mechanism realize that the mode of swing has much repeatedly, it can be to drive by electricity to realize, can also be the swing that realizes pumping mechanism by the mode of routine commonly used in the prior aries such as hydraulic driving.
In order further to prolong the working life of concrete cylinder, reduce the impact force of concrete cylinder when connecting and sealing between the two with delivery pipe, at the joint of concrete cylinder and delivery pipe one wear-resistant seal device is set.
The alloy that described wear-resistant seal device can be a kind of high wear resistance or other conventional abrasive resistance sealing parts.
In sum, the utility model has following advantage compared to existing technology:
Owing to directly pumping mechanism is designed to swing back and forth, and make wherein that the cylinder mouth of concrete cylinder directly is connected with the inlet opening of conveyance conduit when piston rod is in the pushing stroke, when being in induction stroke, be connected with hopper.So just need not to prepare burden by distributing valve, thereby avoided needing in the prior art to adopt sealing and the lubricated problem that valve brought, then its usability is good, and is easy to maintenance; Again owing to there is not valve member to move in hopper, thereby make concrete material be not easy to take place segregation phenomenon, the suction of pump is good, is difficult for plugging in the pumping process, and then the usability of this pump is good; Push concrete material owing to the concrete concrete cylinder is directly docked with concrete delivery pipe simultaneously, this concrete pump pressure loss is little, height is imitated in conveying thereby make, and the occasion of its use is wide; Make pumping mechanism do and swing back and forth because the utility model has also adopted, so just make can not produce the gap between concrete cylinder and the delivery pipe, and the sealing between pumping mechanism and the hopper is realized more easily around the axle that is parallel to the concrete cylinder axis; Owing to also be provided with accumulator at an end of delivery pipe, the twitch of the delivery pipe that causes of the water hammering that may bring more slowly because of the swing of pumping mechanism with regard to available buffer like this.
Description of drawings
Fig. 1 is the structural representation of the utility model most preferred embodiment
Label declaration 1 hopper and stirring apparatus 2 pumping mechanisms 21 oil hydraulic cylinders 22 concrete cylinders 23 make pumping mechanism realize oil hydraulic cylinder 3 delivery pipes 4 abrasive resistance sealing partses of swing
Embodiment
Below in conjunction with embodiment the utility model is described in more detail.
Most preferred embodiment:
A kind of concrete pump comprises hopper and stirring apparatus 1, pumping mechanism 2, hydraulic system and conveyance conduit 3.Pumping mechanism 2 comprise two oil hydraulic cylinder 21, two concrete cylinder 22, support link and make pumping mechanism realize the oil hydraulic cylinder 23 of swing.Pumping mechanism 2 can be on its center line and transport out of a spot wobble on the elongation line of carrying pipe end, the swing of pumping mechanism is by being arranged at the pumping mechanism both sides, also being that concrete cylinder is realized near the oil hydraulic cylinder 23 in the outside of hopper end, concrete cylinder.Joint between concrete cylinder 22 and delivery pipe 3 is provided with abrasive resistance sealing parts 4.
When concrete pump 22 is in working procedure, concrete cylinder 22 under the driving of oil hydraulic cylinder 21, be in the pushing stroke, then this moment, this concrete cylinder 22 was connected with delivery pipe 3, be in the process of pusher, another concrete cylinder 22 then is in the process of suction from hopper 1 under the effect of oil hydraulic cylinder 21.Then promote pumping mechanism by the oil hydraulic cylinder 23 that is arranged at pumping mechanism 2 concrete cylinders 22 both sides, make it center on the spot wobble on the delivery pipe 3 of transporting out of that is positioned on pumping mechanism 2 center lines, aim at delivery pipe 3 and carry out pusher being filled a cylinder in the concrete cylinder 22 of material, and another concrete cylinder 22 is in the process of suction from hopper 1 under the effect of oil hydraulic cylinder 21, and so forth, thus realize the stock of this concrete pump.
It is same as the prior art that present embodiment is not stated part.
Claims (8)
1. concrete pump, comprise hopper and stirring apparatus (1), pumping mechanism (2), hydraulic system and delivery pipe (3), pumping mechanism (2) comprises a plurality of oil hydraulic cylinder (21), a plurality of concrete cylinder (22), supports link, it is characterized in that: described pumping mechanism (2) directly is connected with the inlet opening of delivery pipe (3) when piston rod is in the pushing stroke by the cylinder mouth that swings back and forth, makes described concrete cylinder (22) of himself, is connected with hopper (1) when being in induction stroke.
2. concrete pump according to claim 1 is characterized in that: described pumping mechanism (2) is done for a fulcrum on its center line and is swung back and forth, and the axis normal of this fulcrum is in the axis of concrete cylinder (22).
3. concrete pump according to claim 2 is characterized in that: pumping mechanism (2) is to be positioned on the elongation line of pumping mechanism (2) away from the center line of delivery pipe (3) end around the fulcrum of swing.
4. concrete pump according to claim 3 is characterized in that: described pumping mechanism (2) is for doing swing back and forth around the axle that is parallel to concrete cylinder (22) axis.
5. concrete pump according to claim 4 is characterized in that: described pumping mechanism (2) is done back and forth parallel moving for its integral body.
6. according to the described concrete pump of one of claim 1 to 5, it is characterized in that: concrete pump is provided with accumulator at an end of described delivery pipe (3), and accumulator is connected with the delivery pipe (3) of contiguous hopper end.
7. concrete pump according to claim 6 is characterized in that: described accumulator is a kind of oil hydraulic cylinder or cylinder.
8. concrete pump according to claim 7 is characterized in that: concrete cylinder (22) and the joint between the delivery pipe (3) in pumping mechanism (2) are provided with a wear-resistant seal device (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420108705 CN2752480Y (en) | 2004-11-10 | 2004-11-10 | Concrete pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420108705 CN2752480Y (en) | 2004-11-10 | 2004-11-10 | Concrete pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2752480Y true CN2752480Y (en) | 2006-01-18 |
Family
ID=35913889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420108705 Expired - Fee Related CN2752480Y (en) | 2004-11-10 | 2004-11-10 | Concrete pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2752480Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101749032A (en) * | 2010-02-10 | 2010-06-23 | 山东科技大学 | Novel underground wet blasting machine of coal mine |
| CN107119913A (en) * | 2017-07-04 | 2017-09-01 | 鲁成贵 | A kind of secondary structure pumping installations for concreting secondary structure |
-
2004
- 2004-11-10 CN CN 200420108705 patent/CN2752480Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101749032A (en) * | 2010-02-10 | 2010-06-23 | 山东科技大学 | Novel underground wet blasting machine of coal mine |
| CN107119913A (en) * | 2017-07-04 | 2017-09-01 | 鲁成贵 | A kind of secondary structure pumping installations for concreting secondary structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |