CN202417925U - Concrete piston, pumping mechanism and concrete transfer pump - Google Patents
Concrete piston, pumping mechanism and concrete transfer pump Download PDFInfo
- Publication number
- CN202417925U CN202417925U CN2011205307107U CN201120530710U CN202417925U CN 202417925 U CN202417925 U CN 202417925U CN 2011205307107 U CN2011205307107 U CN 2011205307107U CN 201120530710 U CN201120530710 U CN 201120530710U CN 202417925 U CN202417925 U CN 202417925U
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- connecting rod
- reservoir
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Abstract
The utility model discloses a concrete piston, a pumping mechanism and a concrete transfer pump, wherein the concrete piston comprises a connecting rod, a pressure plate and a piston body; the pressure plate is in a barrel-cover-shaped structure, and connected with the connecting rod to form a closed cavity; the piston body is arranged on an outer barrel wall of the pressure plate; the concrete piston further comprises a piston mechanism; the piston mechanism comprises a piston and a piston rod; the piston is arranged in the closed cavity, and forms a water storage cavity with the pressure plate and the connecting rod; a water tank which is communicated with the pumping mechanism and a water inlet passage of the water storage cavity are arranged on the connecting rod; a first check valve is arranged inside the water inlet passage, so that water flows to the water storage cavity in a unidirectional manner; a water outlet passage running through the pressure plate and the piston body is further arranged; the piston rod drives the piston to move towards the side of the water storage cavity, so that the capacity of the water storage cavity is reduced to drive water to flow between the piston body and a transfer cylinder through the water outlet passage. According to the utility model, water is used as a lubricating medium so as to be pollution-free; the lubricating structure is simple, and the recirculation of water can take away heat, thus the service life of the concrete piston is prolonged.
Description
Technical field
The utility model relates to engineering machinery field, is specifically related to a kind of concrete piston, pumping mechanism and concrete pump.
Background technique
At present, the concrete piston lubricating of concrete pump mainly adopts following mode:
(1) on the conveying cylinder, offers radial hole, introduce hydraulic system oil or special lube road and directly lubricate; Its defective is: the aperture of oilhole produces certain damage to the concrete piston, causes the concentrated wear of concrete piston to speed up, and the concrete piston initial failure occurs and scraps; There is deviation the oilhole position in addition or hydraulic control is not in place all can cause lubrication failure;
(2) on the connecting rod of concrete piston, grease storing cavity is set, in grease storing cavity, is provided with spring and piston, utilize the interior lubricating grease entering of elastic force promotion piston of spring to carry cylinder to be lubricated; Its defective is: the discharge capacity of lubricating grease and efflux time can not get control, and lubricating grease is constantly discharged from grease storing cavity under the effect of spring force, and the discharge of lubricating grease is also arranged in the place that need not lubricate, causes the waste of lubricating grease.
Patent publication No. is that the document of CN1934354A discloses a kind of concrete pump concrete piston lubricating apparatus; It comprises connecting rod, greasing piston and grease adding valua, is provided with cavity in the connecting rod, and the greasing piston is installed in the cavity; Cavity is divided into grease storing cavity and booster cavity; Grease adding valua is communicated with grease storing cavity, and grease storing cavity is provided with grease outlet, and booster cavity links to each other with booster body through first one-way valve.This scheme also comes with some shortcomings: use grease lubrication to increase client's expense, and be prone to pollute; Automatic lubricator structural type is complicated, is difficult for realizing; Roller in the booster body back and forth with carry the cylinder friction, easy damaged is carried cylinder; It is wayward whether lubricant grease uses up, and is prone to cause lubricated being interrupted; Need filling lubricant grease regularly, increase human cost and man-hour.
The model utility content
In order to overcome the above-mentioned defective and the deficiency of existing technology, first purpose of the utility model is to provide a kind of pollution-free and self-lubricated concrete piston of ability, is located at the conveying cylinder of pumping mechanism, comprising: connecting rod, pressing plate, piston body; Pressing plate is a cover shape structure, and is connected to form enclosed cavity with connecting rod; Piston body is positioned on the outer tube wall of pressing plate, and the concrete piston further comprises piston mechanism, and piston mechanism comprises piston and piston rod; Piston is arranged in enclosed cavity, and forms reservoir with pressing plate, connecting rod; Connecting rod is provided with the water tank that is communicated with pumping mechanism, the intake tunnel of reservoir, and first one-way valve is set in intake tunnel makes the unidirectional inflow reservoir of current; Also be provided with the exhalant canal that runs through pressing plate, piston body; Piston rod drives piston to reservoir one side shifting, and the volume of reservoir reduces to flow between piston body and the conveying cylinder through exhalant canal to drive current.
Further, an end of piston rod passes the lid of pressing plate.
Further, piston mechanism also comprises elastic component, and the two ends of elastic component support piston and connecting rod respectively, and natural length is more than or equal to the ultimate range between piston and the connecting rod.
Further, piston rod further extends in the reservoir; Elastic component is set on the piston rod.
Further, piston mechanism also comprises seal ring, end cap; End cap is installed on the pressing plate; Piston rod passes end cap, and seals through seal ring with end cap.
Further, also be provided with second one-way valve in the exhalant canal, make that current can unidirectionally flow out in the reservoir.
Further, the quantity of the intake tunnel and first one-way valve is a plurality of, and corresponding one by one; The quantity of the exhalant canal and second one-way valve is a plurality of, and corresponding one by one.
In order to overcome the above-mentioned defective and the deficiency of existing technology, second purpose of the utility model is to provide a kind of pollution-free and self-lubricated another concrete piston of ability, comprising: connecting rod, pressing plate, piston body; Pressing plate is a cover shape structure, and is connected to form enclosed cavity with connecting rod; Piston body is positioned on the outer tube wall of pressing plate, and the lid of pressing plate is an elastic structure; Connecting rod is provided with the water tank that is communicated with pumping mechanism, the intake tunnel of enclosed cavity, and first one-way valve is set in intake tunnel makes the unidirectional inflow enclosed cavity of current; Also be provided with the exhalant canal that runs through pressing plate, piston body; In pumping mechanism suction or stock process, the lid of pressing plate carries out resiliently deformable under the concrete pressure effect, and the volume of enclosed cavity reduces to flow between piston body and the conveying cylinder through exhalant canal to drive current.
In order to overcome the above-mentioned defective and the deficiency of existing technology, the 3rd purpose of the utility model is to provide a kind of pumping mechanism, comprise water tank, carry cylinder and be installed in the concrete piston of carrying in the cylinder, this concrete piston be in the above-mentioned various concrete piston any.
In order to overcome the above-mentioned defective and the deficiency of existing technology, the 4th purpose of the utility model is to provide a kind of concrete pump with above-mentioned pumping mechanism.
Utilize water as lubricant medium among the concrete piston embodiment of the utility model, practice thrift client's user cost, pollution-free; Variation through pumping process conveying in-cylinder pressure is inhaled automatically, setting-out reaches lubricated purpose, and concrete piston lubricating is simple in structure, is prone to realize; Simultaneously, the reciprocation cycle of water can be taken away the concrete piston and carry the frictional heat that produces in the cylinder relative movement, reduces the expansion of concrete seal and guide ring, prolongs the working life of concrete piston.
Description of drawings
Shown in Figure 1 is the structural representation of the utility model concrete piston embodiment when water outlet;
Shown in Figure 2 is the structural representation of the utility model concrete piston embodiment when suction;
Shown in Figure 3 is the working principle schematic representation of Fig. 1 and structure shown in Figure 2.
Embodiment
To combine the accompanying drawing among the utility model embodiment below, the technological scheme among the utility model embodiment is carried out clear, intactly description, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiments.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment who is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
Like Fig. 1 and shown in Figure 2, the utility model embodiment has proposed a kind of concrete piston, comprising: connecting rod 2, piston body 5, pressing plate 8; Wherein, pressing plate 8 is a cover shape structure, and is connected to form enclosed cavity with connecting rod 2; Piston body 5 is positioned on the outer tube wall of pressing plate 8; The set-up mode of above-mentioned pressing plate 8, connecting rod 2 and piston body 5 can be 200420036004.7 patent documentation with reference to the patent No..
Said concrete piston further comprises piston mechanism 9, and this piston mechanism 9 comprises piston 904 and piston rod 902, and piston 904 is arranged in enclosed cavity, and forms reservoir 11 with pressing plate 8, connecting rod 2.Connecting rod 2 is provided with the water tank 1 that is communicated with pumping mechanism, the intake tunnel 4 of reservoir 11; And first one-way valve 3 is set in intake tunnel 4 makes the said reservoir 11 of the unidirectional inflow of current; During specific operation, can first one-way valve 3 be installed on the disk center of connecting rod 2; And be provided with the exhalant canal 7 that runs through pressing plate 8, piston body 5; One end of exhalant canal 7 is communicated with reservoir 11; The other end is arranged on the outer wall of piston body 5, and in exhalant canal 7, is provided with second one-way valve 6, makes that current can unidirectionally flow out in the reservoir 11.Externally under the effect of power; Piston rod 902 drives piston 904 to reservoir 11 1 side shiftings; The volume of reservoir 11 reduces like this; Water to drive in the reservoir 11 flow between piston body 5 and the conveying cylinder 10 through exhalant canal 7, and piston body 5 and the casing wall of carrying cylinder 10 are lubricated, lower the temperature.
As shown in Figure 1, an end of piston rod 902 passes the lid of pressing plate 8, like this in pumping system suction or stock process; Through carrying an end of the concrete extrusion piston bar 902 in the cylinder 10; And then promote piston rod 902 drive pistons 904 to direction motion near connecting rod 2, make the volume of reservoir 11 reduce, thereby through the water in the extruding reservoir 11; Make current flow to reservoir 11, reach between piston body 5 and the conveying cylinder 10 through exhalant canal 7.Certainly, power mechanism can also be set independently drives piston mechanism 9 and in sealed cavity, does axial motion.Piston rod 902 for example is set passes connecting rod 2, through piston rod 902 being applied, to reach the effect of the volume that changes reservoir 11 to pulling force near the motion of connecting rod 2 directions.
Piston mechanism 9 can also comprise: elastic component 901, and elastic component 901 can be Returnning spring or stage clip etc.; The two ends of elastic component 901 support piston 904 and connecting rod 2 respectively, and natural length, is convenient to can reset fast behind the water of piston 904 in extruding reservoir 11 to guarantee that certain decrement is arranged more than or equal to the ultimate range between piston 904 and the connecting rod 2; When elastic component adopts Returnning spring, can be sleeved on the piston rod 902 that extends in the reservoir 11.
Further, piston mechanism 9 can also comprise: nut 903, seal ring (like O shape circle) 905, end cap 906, and wherein, the shaft shoulder and nut 903 through piston rod 902 are fixed on piston 904 on the piston rod 902; End cap 906 is installed on the pressing plate 8, and piston rod 902 passes end cap 906, and seals through seal ring 905 with end cap 906.During specific operation, piston mechanism 9 can be installed on the center of pressing plate 8.
Preferably, many mutual disconnected exhalant canals 7 (figure does not show) can be set, be provided with one second one-way valve 6 on every exhalant canal 7.In like manner, many mutual disconnected intake tunnels 4 can be set in connecting rod 2, correspondingly, be provided with a plurality of and many intake tunnels 4 first one-way valve 3 of corresponding matching effect one by one.
Need to prove that the piston 904 of piston mechanism 9 is divided into the reservoir 11 near connecting rod 2 one sides with sealed cavity, is full of the compressibility medium in the cavity away from connecting rod 2 one sides in the sealed cavity, for example can charge into air.Like this, piston 904 is when reservoir 11 1 side shiftings under external force, and the air pressure of cavity air reduces, and it is big that the volume of cavity becomes, thereby make the volume of reservoir 11 reduce, and the water in the reservoir 11 is discharged through exhalant canal 7.
The self-lubricated working principle of above-mentioned concrete piston is following; As shown in Figure 3; The to-and-fro motion in carrying cylinder 10 of concrete piston realizes concrete stock and suction operation, when the concrete piston is being carried in the cylinder 10 in the to-and-fro motion, when an end that passes the lid of pressing plate 8 when piston rod 902 receives in the conveying cylinder 10 concrete active force; Can drive piston 904 towards direction motion near connecting rod 2; Make the volume of reservoir 11 reduce (can referring to the state of reservoir 11 shown in Figure 1), the water in the reservoir 11 be discharged through exhalant canal 7 through second one-way valve 6, takes frictional heat out of and the concrete piston is lubricated; Concrete pressure is cancelled or when reducing in carrying cylinder 10; Under the elastic force effect of elastic component 901; Piston rod 902 drives pistons 904 and resets, and towards the direction motion away from connecting rod 2, makes the volume of reservoir 11 become big (can referring to the state of reservoir 11 shown in Figure 2); When the volume of reservoir 11 became big, the water in the water tank 1 was inhaled in the reservoir 11 through intake tunnel 4, first one-way valve 3.
As the another preferred embodiment of the utility model, the lid of pressing plate 8 can be elastic structure, as utilizes elastic material to process; Like this, the lid of pressing plate 8 can produce distortion when carrying in the cylinder 10 concrete active force receiving, and the volume that pressing plate and connecting rod 2 are connected to form enclosed cavity can diminish, so that the water in the enclosed cavity is extruded through exhalant canal 7; Can let lid volume when not receiving concrete active force recover through being provided with; Can change through the cavity volume of pressing plate 8 thus and accomplish suction and setting-out; Promptly in pumping mechanism suction or stock process; The lid of pressing plate 8 carries out resiliently deformable under the concrete pressure effect, the volume of enclosed cavity reduces to flow between piston body 5 and the conveying cylinder through exhalant canal 7 to drive current; When utilizing lid to realize water squeezing and suction, then can omit the structure of piston mechanism 9, whole enclosed cavity is as reservoir.
Lubricant medium is a water in the present embodiment, practices thrift client's user cost, cleaning; Variation through pumping process conveying in-cylinder pressure is inhaled automatically, setting-out reaches lubricated purpose, and concrete piston lubricating is simple in structure, is prone to realize; When changing, realizes each conveying in-cylinder pressure self oiling, lubricated being in time; Simultaneously, the reciprocation cycle of water can be taken away the concrete piston and carry the frictional heat that produces in the cylinder relative movement, reduces the expansion of concrete seal and guide ring, prolongs the working life of concrete piston; Preferably, utilize spring force can realize suction rapidly.
More than be merely the preferred embodiment of the utility model, or not all within the spirit and principle of the utility model in order to restriction the utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the utility model.
Claims (10)
1. concrete piston is located at the conveying cylinder of pumping mechanism, comprising: connecting rod (2), pressing plate (8), piston body (5); Said pressing plate (8) is a cover shape structure, and is connected to form enclosed cavity with said connecting rod (2); Said piston body (5) is positioned on the outer tube wall of said pressing plate (8), it is characterized in that,
Said concrete piston further comprises piston mechanism (9), and piston mechanism (9) comprises piston (904) and piston rod (902); Said piston (904) is arranged in enclosed cavity, and forms reservoir (11) with said pressing plate (8), connecting rod (2);
Said connecting rod (2) is provided with the water tank (1) that is communicated with pumping mechanism, the intake tunnel (4) of said reservoir (11), and first one-way valve (3) is set in said intake tunnel (4) makes the said reservoir of the unidirectional inflow of current (11); Also be provided with the exhalant canal (7) that runs through said pressing plate (8), piston body (5); Said piston rod (902) drives said piston (904) to said reservoir (11) one side shiftings, and the volume of said reservoir (11) reduces to flow between said piston body (5) and the said conveying cylinder through said exhalant canal (7) to drive current.
2. concrete piston according to claim 1 is characterized in that, an end of said piston rod (902) passes the lid of said pressing plate (8).
3. concrete piston according to claim 2; It is characterized in that; Said piston mechanism (9) also comprises elastic component (901); The two ends of said elastic component (901) support said piston (904) and said connecting rod (2) respectively, and natural length is more than or equal to the ultimate range between said piston (904) and the said connecting rod (2).
4. concrete piston according to claim 3 is characterized in that, said piston rod (902) further extends in the said reservoir (11); Said elastic component (901) is set on the said piston rod (902).
5. concrete piston according to claim 4 is characterized in that, said piston mechanism (9) also comprises seal ring (905), end cap (906);
Said end cap (906) is installed on the said pressing plate (8); Said piston rod (902) passes said end cap (906), and seals through said seal ring (905) with said end cap (906).
6. require each described concrete piston among the 1-5 according to aforesaid right, it is characterized in that, also be provided with second one-way valve (6) in the said exhalant canal (7), make the middle current of said reservoir (11) unidirectionally to flow out.
7. require 6 described concrete pistons according to aforesaid right, it is characterized in that, the quantity of said intake tunnel (4) and said first one-way valve (3) is a plurality of, and corresponding one by one; The quantity of said exhalant canal (7) and said second one-way valve (6) is a plurality of, and corresponding one by one.
8. concrete piston is located at the conveying cylinder of pumping mechanism, comprising: connecting rod (2), pressing plate (8), piston body (5); Said pressing plate (8) is a cover shape structure, and is connected to form enclosed cavity with said connecting rod (2); Said piston body (5) is positioned on the outer tube wall of said pressing plate (8), it is characterized in that, the lid of said pressing plate (8) is an elastic structure;
Said connecting rod (2) is provided with the water tank (1) that is communicated with pumping mechanism, the intake tunnel (4) of said enclosed cavity, and first one-way valve (3) is set in said intake tunnel (4) makes the said enclosed cavity of the unidirectional inflow of current; Also be provided with the exhalant canal (7) that runs through said pressing plate (8), piston body (5);
In pumping mechanism suction or stock process; The lid of said pressing plate (8) carries out resiliently deformable under the concrete pressure effect, the volume of said enclosed cavity reduces to flow between said piston body (5) and the said conveying cylinder through said exhalant canal (7) to drive current.
9. a pumping mechanism comprises water tank (1), carries cylinder (10) and is installed in the concrete piston in the said conveying cylinder (10), it is characterized in that said concrete piston is each described concrete piston among the aforesaid right requirement 1-8.
10. a concrete pump is characterized in that, comprises aforesaid right requirement 9 described pumping mechanisms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205307107U CN202417925U (en) | 2011-12-16 | 2011-12-16 | Concrete piston, pumping mechanism and concrete transfer pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205307107U CN202417925U (en) | 2011-12-16 | 2011-12-16 | Concrete piston, pumping mechanism and concrete transfer pump |
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| Publication Number | Publication Date |
|---|---|
| CN202417925U true CN202417925U (en) | 2012-09-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205307107U Expired - Fee Related CN202417925U (en) | 2011-12-16 | 2011-12-16 | Concrete piston, pumping mechanism and concrete transfer pump |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102926991A (en) * | 2012-10-26 | 2013-02-13 | 上海鸿得利重工股份有限公司 | Concrete delivery pump piston with self-lubricating structure |
| CN103321892A (en) * | 2013-05-29 | 2013-09-25 | 三一汽车制造有限公司 | Elastic piston and pumping system and engineering machine with elastic piston |
| CN110425101A (en) * | 2019-06-09 | 2019-11-08 | 天津融渌众乐科技有限公司 | A kind of polarization generating means system |
| CN110921330A (en) * | 2019-12-02 | 2020-03-27 | 厚力德机器（杭州）有限公司 | Remote livestock manure conveying device |
-
2011
- 2011-12-16 CN CN2011205307107U patent/CN202417925U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102926991A (en) * | 2012-10-26 | 2013-02-13 | 上海鸿得利重工股份有限公司 | Concrete delivery pump piston with self-lubricating structure |
| CN103321892A (en) * | 2013-05-29 | 2013-09-25 | 三一汽车制造有限公司 | Elastic piston and pumping system and engineering machine with elastic piston |
| CN110425101A (en) * | 2019-06-09 | 2019-11-08 | 天津融渌众乐科技有限公司 | A kind of polarization generating means system |
| CN110921330A (en) * | 2019-12-02 | 2020-03-27 | 厚力德机器（杭州）有限公司 | Remote livestock manure conveying device |
| CN110921330B (en) * | 2019-12-02 | 2022-03-22 | 厚力德机器（杭州）有限公司 | Remote livestock manure conveying device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SANY AUTOMOBILE MANUFACTURING CO., LTD. Free format text: FORMER OWNER: SANYI HEAVY INDUSTRY CO LTD Effective date: 20130507 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130507 Address after: 410100 Changsha economic and Technological Development Zone, Hunan City, the 31 industrial city Patentee after: SANY Automobile Manufacturing Co., Ltd. Address before: 410100 Changsha economic and Technological Development Zone, Hunan City, the 31 industrial city Patentee before: Sanyi Heavy Industry Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120905 Termination date: 20151216 |
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| EXPY | Termination of patent right or utility model |