CN102619977B - Novel concrete piston and concrete transporting device having same - Google Patents
Novel concrete piston and concrete transporting device having same Download PDFInfo
- Publication number
- CN102619977B CN102619977B CN201210101472.7A CN201210101472A CN102619977B CN 102619977 B CN102619977 B CN 102619977B CN 201210101472 A CN201210101472 A CN 201210101472A CN 102619977 B CN102619977 B CN 102619977B
- Authority
- CN
- China
- Prior art keywords
- piston
- concrete
- suction
- connecting rod
- husky
- 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.)
- Active
Links
Landscapes
- Reciprocating Pumps (AREA)
Abstract
The invention provides a novel concrete piston, which comprises a front-mounted piston, a connecting rod and a main piston, wherein the front-mounted piston is in clearance fit with the inner wall of a transporting cylinder, and the main piston is in interference fit with the inner wall of the transporting cylinder; two ends of the connecting rod are respectively fixedly connected with the front-mounted piston and the main piston; a cavity is respectively formed between the end surfaces of the front-mounted piston and the main piston and the outer wall of the connecting rod and between the end surfaces of the front-mounted piston and the main piston and the inner wall of the transporting cylinder; a sand scraping device is respectively arranged inside the cavities, and each sand scraping device sweeps hard particles such as sand adhered on the inner wall of the transporting cylinder into the cavities; and each cavity is connected with a sand discharging device, and the sand discharging device can discharge the hard particles such as the sand inside the cavities. The invention also provides a concrete transporting device comprising the novel concrete piston. Through the technical scheme provided by the invention, the service life of the concrete piston can be effectively prolonged, and especially the service life of the wearing parts such as concrete sealing bodies and the like can be prolonged.
Description
Technical field
The present invention relates to a kind of piston, in particular to a kind of concrete piston and the appts. for transferring ready-mixed concrete with this concrete piston.
Background technique
Concrete pump a kind ofly utilizes slipper seal between concrete piston and conveying cylinder to realize the Architectural Equipment of suction and stock function.The typical structure of combined concrete piston is made up of pressing plate, concrete seal, guide ring, dust ring, bolt, piston framework.Concrete seal and conveying cylinder interference fit, realize sealing function; Guide ring and lubricating grease around thereof realize concrete piston guide and lubricating function; Dust ring coordinates with conveying cylinder realize dust-proof with water proof function.
But, concrete pistons work is in the conveying cylinder of more than 2 meters length, by multidirectional stream (concrete) impacting with high pressure, the processing of concrete piston details and assembly error (particularly coaxality and cylindricity), hydraulic system flutter, the impacts such as elongate plunger rod distortion, produce concrete seal damaged, the phenomenons such as concrete piston eccentric wear, scuffing of cylinder bore.Find for above-mentioned phenomenal research, it is as follows that it destroys step:
1, concrete seal affects distortion by above-mentioned, and rubbing with conveying cylinder produces high temperature, and neighbouring lubricant film is destroyed at this point; Concrete seal and conveying cylinder adhere to, avulsion, adheres to and define adhesion wear again, concrete sealing tentatively destruction;
2, tiny sand is stuck between impaired concrete seal and conveying cylinder, and concrete seal changes abrasive wear into carrying the principal mode that cylinder weares and teares, and sealing destroys further;
3, harder peak of profile or abrasive particle mark strip stria on matching surface as cutting, concrete is emanated to be bonded on concrete piston and is hardened in the lump under high temperature action even, together cut conveying cylinder, hard material is caused to come off in a large number, form the vicious circle of abrasive wear, finally sealed destroys completely.
Have the combined concrete piston after a kind of improvement in existing correlation technique, as described in Figure 1, its feature is as follows for its structure:
1, concrete piston is made up of piston only 01 and piston float 02, connects 03 by chain, mutually can do axially or diametrically move;
2, piston float 02, piston only 01 and conveying cylinder 04 between form airtight chamber 05;
3, piston only 01 is provided with one-way valve 06, by pressure reduction, the highly pressurised liquid after sucker body 01 in conveying cylinder 04.
There is following defect in this kind of structure:
1, the pressure of intake chamber highly pressurised liquid need be greater than the pumping pressure of conveying cylinder inner concrete, and thus above-mentioned concrete piston is not suitable for the concrete pump of high pressure pumping;
2, concrete is washed away interference auxiliary section by highly pressurised liquid, will cause the secondary wearing and tearing of concrete seal and conveying cylinder, and affect pump concrete quality simultaneously;
3, one-way valve is installed, will complexity and the maintenance expenses in the future of concrete Piston Machining and assembly technology be increased.
Therefore, how effectively to extend the working life of the easily damaged partss such as the working life, particularly concrete seal of concrete piston, be still the technical problem needing solution at present badly.
Summary of the invention
Based on above-mentioned background technology, need a kind of concrete piston, effectively can extend the working life of the easily damaged partss such as the working life of concrete piston, particularly concrete seal.
The invention provides a kind of concrete piston, comprising: be arranged on preposition piston, connecting rod and the main piston in conveying cylinder, the internal face Spielpassung of described preposition piston and described conveying cylinder, the internal face interference fit of described main piston and described conveying cylinder; The two ends of described connecting rod are fixedly connected with described main piston with described preposition piston respectively; Chamber is formed between the internal face of the end face of described preposition piston and described main piston and the outer wall of described connecting rod and described conveying cylinder; Be provided with in described chamber and scrape husky device, described in scrape the contact internal walls of husky device and described conveying cylinder, the silt that the described conveying inside wall of cylinder adheres to can be swept described chamber; Described chamber is connected with sand discharge apparatus, and described sand discharge apparatus can discharge the silt in described chamber.
Preferably, scrape husky device and comprise wear ring, described wear ring is fixedly mounted on the periphery wall of described connecting rod, and described wear ring matches with the inwall of described conveying cylinder.
Preferably, the outer circumferential face of described main piston is provided with concrete seal, guide ring and dust-blocking ring, the contiguous described connecting rod of described concrete seal is installed, and the exterior edge face of the contiguous described main piston of described dust-blocking ring is installed, and described guide ring is between described concrete seal and dust-blocking ring; The internal face interference fit of described concrete seal and described conveying cylinder.
Preferably, described preposition piston, connecting rod and main piston are one-body molded.Or,
Described preposition piston and connecting rod disjunctor process, and described connecting rod is fixedly connected with described main piston by fixed block; Described concrete seal is fixed on described main piston by seal pressing plate; Described connecting rod is fixedly connected with described main piston by described seal pressing plate.
Preferably, the exterior edge face of described preposition piston is installed with preposition piston baffle; Described preposition piston outer periphery face is provided with the piston ring adopting high hardness material to make, the internal face Spielpassung of described piston ring and described conveying cylinder.
Preferably, the outer circumferential face of described preposition piston is provided with preposition piston guide cover, described preposition piston guide cover and described conveying inside wall of cylinder face Spielpassung.
Preferably, described wear ring is provided with the resistance to polish-brush of at least one and described conveying inside wall of cylinder face interference fit; Described wear-resisting brushing tool is flexible.
Preferably, the axial pass trough that can pass through for silt is had in the bottom of described resistance to polish-brush.
Preferably, described sand discharge apparatus comprises suction husky mouth, suction sand tube road and sandsucker; Described suction husky mouth opening is towards described chamber, and the husky mouth of described suction is communicated with described sandsucker by described suction sand tube road, and described sandsucker inhales husky suction for the husky mouth of described suction provides.
Preferably, the husky mouth of described suction inhales husky mouth for the V-arrangement be arranged in described connecting rod outer wall; Described suction sand tube road comprises arm, collecting pipe and suction sand supervisor; Described arm is arranged in described connecting rod, and one end and described V-arrangement inhale that husky mouth is communicated with, the other end is communicated with described collecting pipe; Described collecting pipe is arranged in described main piston, and one end is communicated with described arm, the other end is inhaled husky supervisor be communicated with described; Described suction sand supervisor one end is communicated with described collecting pipe, the other end is communicated with described sandsucker.
Preferably, described connecting rod outer wall is arranged at intervals with multiple described V-arrangement and inhales husky mouth; Multiple described V-arrangement inhales the suction angle of coverage sum degree of being not less than 360 degree of husky mouth; Described suction sand tube road comprises many described arms, and one end and a V-arrangement of each arm are inhaled husky mouth and be communicated with, and the other end of many described arms gathers and is connected with collecting pipe afterwards; The cross-section area sum of whole described arm is less than the cross-section area of described collecting pipe.
Preferably, multiple described V-arrangement is inhaled husky mouth and is positioned at circumferentially same, and the central angle that every two adjacent described V-arrangements are inhaled between husky mouth is equal; Angle between every two adjacent arms is equal.
Preferably, described sand discharge apparatus also comprises the slag suction mouth being arranged at described cavity bottom, and described slag suction mouth is communicated with described collecting pipe by pipeline.
Preferably, described slag suction mouth is communicated with described collecting pipe by the dreg inhaling pipe be arranged in described primary piston body; The described cross-section area of whole described arm and the area sum of described slag suction mouth are less than the cross-section area of described collecting pipe.
Preferably, described sandsucker is provided with hoisting mechanism, described suction sand supervisor is wound on described hoisting mechanism.
Preferably, described sand discharge apparatus comprises suction husky mouth, suction sand tube road and sandsucker; The husky mouth of described suction, for being arranged on the circular hole on described wear ring, described wear ring is provided with the described resistance to polish-brush of multiple and described conveying inside wall of cylinder face interference fit along the axis of described concrete piston, the forward piston side of putting of each resistance to polish-brush is equipped with the husky mouth of described suction; Be provided with many group radial holes and at least one axial bore in described connecting rod, the opening of described radial hole is connected with the husky mouth of described suction of described wear ring, and the other end of described radial hole is all communicated with described axial bore; Be provided with connecting tube in described main piston, described connecting tube one end is connected with described axial bore, and the other end is communicated with husky supervisor of suction.
Present invention also offers a kind of appts. for transferring ready-mixed concrete, include the concrete piston according to any one of technique scheme.
In sum, by technological scheme of the present invention, gap is there is between preposition piston and conveying cylinder, make the hard particles such as tiny silt can enter chamber or stick on the internal face of conveying cylinder, then by scraping husky device, the hard particles such as tiny silt are swept down from conveying inside wall of cylinder face, conveying cylinder is being discharged by sand discharge apparatus, without the need to by the hard particles refunds pump concretes such as tiny silt, avoid the quality affecting pump concrete, concrete seal and the vicious circle of carrying cylinder abrasive wear are blocked, for main piston creates a working environment without abrasive wear, extend concrete piston, the working life of concrete seal and conveying cylinder, and without the need to arranging one-way valve on concrete piston, decreasing the complexity of concrete piston parts machining and assembly technology, reducing maintenance difficulties.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of concrete piston of the prior art;
Fig. 2 is the principle schematic of concrete piston according to an embodiment of the invention;
Fig. 3 and Fig. 5 is the structural representation of the concrete piston of different embodiment according to the subject invention;
Fig. 4 is the A-A cross-sectional schematic of the piston of concrete shown in Fig. 3;
Fig. 6 is the B portion enlarged view in Fig. 5.
Embodiment
In order to more clearly understand above-mentioned purpose of the present invention, feature and advantage, below in conjunction with the drawings and specific embodiments, the present invention is further described in detail.
Set forth a lot of detail in the following description so that fully understand the present invention; but; the present invention can also adopt other to be different from other modes described here and implement, and therefore, protection scope of the present invention is not by the restriction of following public specific embodiment.
Fig. 2 is the principle schematic of concrete piston according to an embodiment of the invention; Fig. 3 and Fig. 5 is the structural representation of the concrete piston of different embodiment according to the subject invention; Fig. 4 is the A-A cross-sectional schematic of the piston of concrete shown in Fig. 3, and Fig. 6 is the B portion enlarged view in Fig. 5.
As shown in Figure 2, the invention provides a kind of concrete piston, comprising: be arranged on preposition piston 21, connecting rod 22 and the main piston 23 in conveying cylinder 1, preposition piston 21 and the internal face Spielpassung of carrying cylinder 1, main piston 23 and the internal face interference fit of carrying cylinder 1; The two ends of connecting rod 22 are fixedly connected with main piston 23 with preposition piston 21 respectively; The end face of preposition piston 21 and main piston 23 and the outer wall of connecting rod 22 and carry between the internal face of cylinder 1 and form chamber 3; Be provided with in chamber 3 and scrape husky device, scrape husky device and the silt that conveying cylinder 1 inwall adheres to is swept chamber 3; Chamber 3 is connected with sand discharge apparatus, and sand discharge apparatus can discharge the hard particles such as the silt in chamber 3.In figure, the direction of arrow represents the direction that silt is discharged.
In this technological scheme, gap (about 0.3 ~ 0.5mm) is there is between preposition piston 21 and conveying cylinder 1, make the hard particles such as tiny silt can enter chamber 3, scrape husky device and the hard particles such as the silt that conveying cylinder 1 inwall adheres to are swept chamber 3, then the hard particles such as tiny silt are discharged conveying cylinder 1, without the need to by the hard particles refunds pump concretes such as tiny silt, avoid the quality affecting pump concrete, concrete seal and the vicious circle of carrying cylinder abrasive wear are blocked, for main piston 23 creates a working environment without abrasive wear, extend concrete piston, the working life of concrete seal and conveying cylinder 1, and without the need to arranging one-way valve on concrete piston, decreasing the complexity of concrete piston parts machining and assembly technology, reducing maintenance difficulties.
Preferably, as shown in Figure 3 and Figure 4, scrape husky device and comprise wear ring 4, wear ring 4 is fixedly mounted on the periphery wall of connecting rod 22, and wear ring 4 matches with the inwall of conveying cylinder 1; Sand discharge apparatus comprises inhales husky mouth 51, suction sand tube road 52 and sandsucker 53; Inhale husky mouth 51 opening towards chamber 3, inhale husky mouth 51 and be connected with sandsucker 53 by inhaling sand tube road 52, sandsucker 53 provides for inhaling husky mouth 51 suction inhaling sand.
In this technological scheme, wear ring 4 matches with the inwall of conveying cylinder 1, under can ensureing to be swept by the hard particles such as the tiny silt on conveying cylinder 1 inwall when concrete piston movement, is then discharged by sand discharge apparatus.
Wherein, as shown in Figure 3, preposition piston 21, connecting rod 22 and main piston 23 can be one-body molded; The outer circumferential face of main piston 23 is provided with concrete seal 231, guide ring 232 and dust-blocking ring 233, the contiguous connecting rod 22 of concrete seal 231 is installed, the exterior edge face of the contiguous main piston 23 of dust-blocking ring 233 is installed, and guide ring 232 is between concrete seal 231 and dust-blocking ring 233; Concrete seal 231 and the internal face interference fit of carrying cylinder 1.Integrated concrete piston is more firm, processing is simpler; Concrete seal 231 realizes sealing function, guide ring 232 realizes guiding and lubricating function, and dust-blocking ring 233 realizes dust-break and water proof function.
Preposition piston 21, connecting rod 22 and main piston 23 adopt the macromolecule organic material of high hardness to make; The exterior edge face of preposition piston 21 is installed with preposition piston baffle 211; Preposition piston 21 outer circumferential face is provided with the piston ring 212 adopting high hardness material to make, piston ring 212 and the internal face Spielpassung of carrying cylinder 1.
In this technological scheme, dust-blocking ring 233 can prevent foreign matter from entering the work of conveying cylinder impact conveying cylinder; Preposition piston baffle 211 is for keeping out concrete impacting with high pressure; Preposition piston 21 is installed the metallic piston ring of high hardness, protect preposition piston 21 circumferential surface.
Preferably, wear ring 4 is provided with at least one and the resistance to polish-brush 41 carrying cylinder 1 internal face interference fit; Resistance to polish-brush 41 has elasticity.There is flexible resistance to polish-brush, can not only scrape totally husky but also protect the internal face carrying cylinder.
In this technological scheme, preferably, the axial pass trough 411 that can pass through for silt is had in the bottom of described resistance to polish-brush 41.For not provided a passage by the silt that the husky mouth 51 of suction is discharged, entering the slag suction mouth 55 of chamber 3 bottom, remaining silt discharged.
Preferably, wear ring 4 be provided with one with the resistance to polish-brush 41 of conveying cylinder 1 internal face interference fit; Inhale husky mouth 51 for the V-arrangement be molded in connecting rod 22 outer wall and inhale husky mouth; Inhale sand tube road 52 comprise arm 521, collecting pipe 522 and inhale husky supervisor 523; Arm 521 is arranged in connecting rod 22, and one end and V-arrangement inhale that husky mouth is communicated with, the other end is communicated with collecting pipe 522; Collecting pipe 522 is through main piston 23, and one end is communicated with arm 521, the other end is responsible for 523 with suction sand and is communicated with; The husky supervisor of suction 523 one end are communicated with collecting pipe 522, the other end is communicated with sandsucker 53.Husky for suction mouth is arranged forming V-shape, and suction angle of coverage is large, inhales sand more effective.
Preferably, as shown in Figure 4, described connecting rod 22 outer wall is arranged at intervals with multiple described V-arrangement and inhales husky mouth; Preferably, multiple described V-arrangement is inhaled husky mouth and is positioned at circumferentially same, and the central angle that every two adjacent described V-arrangements are inhaled between husky mouth is equal; The suction angle of coverage sum that multiple V-arrangement inhales husky mouth is not less than 360 degree; Inhale sand tube road 52 and comprise many arms 521, one end V-arrangement corresponding to of each arm 521 is inhaled husky mouth and is communicated with, and the other end of many arms 521 gathers and is connected with collecting pipe 522 afterwards; Preferably, the angle between every two adjacent arms 521 is equal; The cross-section area sum of whole arm 521 is less than the cross-section area of collecting pipe 522.What adopt in the present embodiment is 10 V-arrangement spouts and 10 arms, then the suction angle of coverage of each V-arrangement spout is not less than 36 degree, and the angle between every two arms is 36 degree.In the present embodiment, described " V-arrangement inhales the suction coverage area of husky mouth ", just refers to that V-arrangement suction inlet can siphon away the scope of silt, and the silt being in this scope can be inhaled husky mouth by V-arrangement and siphon away.
In this technological scheme, the cross-section area sum of whole arm 521 is less than the cross-section area of collecting pipe 522, can amplify suction, effectively can also avoid the blocking of collecting pipe 522.
Preferably, sand discharge apparatus also comprises the slag suction mouth 55 be arranged at bottom chamber 3, and slag suction mouth 55 is communicated with collecting pipe 522 by pipeline.Arrange slag suction mouth 55, be after the husky mouth 51 of suction inhales sand, residue and remaining silt, foreign material etc., fall into the bottom of described chamber 3, then discharged by slag suction mouth 55.The bottom of chamber 3 described herein, refers to the foot of chamber 3, the bottom of figure as shown in Figure 3 and Figure 5.In the present embodiment, slag suction mouth 55 coordinates with the axial pass trough 411 bottom resistance to polish-brush 41, to do not discharged by the residue silt that the husky mouth 51 of suction siphons away, namely the bottom that silt is pooled to chamber 3 is under gravity remained, then arrive slag suction mouth 55 by the axial pass trough 411 bottom resistance to polish-brush 41, be then discharged.
Preferably, slag suction mouth 55 is communicated with collecting pipe 522 by the dreg inhaling pipe 551 be arranged in main piston 23 body; The sectional area of whole arm 521 and the area sum of slag suction mouth 55 are less than the sectional area of collecting pipe 522.
In this technological scheme, the gap between slag suction mouth 55 and conveying cylinder 1 inwall is very little, and adopt the design of syringe needle shape, pin hole is slightly larger than hard particles particle diameters such as tiny silts.
Preferably, sandsucker 53 is provided with hoisting mechanism 56, inhales husky supervisor 523 and be wound on hoisting mechanism 56, make hoisting mechanism 56 can control to inhale the folding and unfolding of husky supervisor 523.
In this technological scheme, hoisting mechanism 56 can control the folding and unfolding of inhaling husky supervisor 523, coordinates the fore and aft motion of concrete piston, completes sand discharge and deslagging work.
As shown in Figure 5 and Figure 6, another embodiment of described concrete piston of the present invention is: preposition piston 21, connecting rod 22 and main piston 23 can also adopt has higher hardness and the lightweighting materials of easily processing combines, such as, light alloy or Inorganic Non-metallic Materials can be adopted to combine; Preposition piston 21 and connecting rod 22 disjunctor process, and connecting rod 22 is fixedly connected with main piston by fixed block; The outer circumferential face of main piston 23 is provided with concrete seal 231, guide ring 232 and dust-blocking ring 233, the contiguous connecting rod 22 of concrete seal 231 is installed, the exterior edge face of the contiguous main piston 23 of dust-blocking ring 233 is installed, guide ring 232 between concrete seal 231 and dust-blocking ring 233, concrete seal 231 and conveying cylinder 1 inwall interference fit; The outer circumferential face of preposition piston 21 is provided with preposition piston guide cover 214, preposition piston guide cover 214 and conveying cylinder 1 internal face Spielpassung.Concrete seal 231 is fixed on main piston 23 by seal pressing plate 234; Connecting rod 22 is fixedly connected with main piston by seal pressing plate 234; Preposition piston guide cover 214 is arranged in the outer wall of preposition piston 21 by concave-convex fit structure.
In this technological scheme, gap (about 0.3 ~ 0.5mm) is there is between preposition piston 21 and conveying cylinder 1, make the hard particles such as tiny silt can enter chamber 3, scrape husky device and the hard particles such as the silt that conveying cylinder 1 inwall adheres to are swept chamber 3, then the hard particles such as tiny silt are discharged conveying cylinder 1, without the need to by the hard particles refunds pump concretes such as tiny silt, avoid the quality affecting pump concrete, concrete seal and the vicious circle of carrying cylinder abrasive wear are blocked, for main piston 23 creates a working environment without abrasive wear, extend the working life of concrete piston concrete seal and conveying cylinder 1, and without the need to arranging one-way valve on concrete piston, decreasing the complexity of concrete piston parts machining and assembly technology, reducing maintenance difficulties.
Preferably, inhale husky mouth 51 for being arranged on the circular hole on wear ring 4, along concrete piston shaft to being set side by side with resistance to polish-brush 41 that is multiple and conveying cylinder 1 internal face interference fit on wear ring 4; Be provided with many group radial holes 524 and at least one axial bore 525 in connecting rod 22, the opening of radial hole 524 is connected with the circular hole of wear ring 4, and the other end of radial hole 524 is all communicated with axial bore 525; Be provided with connecting tube 526 in main piston 23, connecting tube 526 one end is connected with axial bore 525, and the other end is responsible for 523 with suction sand and is communicated with.Other structures are same as the previously described embodiments, repeat no more.
Concrete piston given by this enforcement, by the resistance to polish-brush 41 be set up in parallel, the silt sticked on conveying cylinder 1 internal face can be swept down equally, then be inhaled in many group radial holes 524 by the circular hole on wear ring 4, connecting tube 526 is being entered by axial bore 525, finally by suction, husky supervisor 523 discharges, and can realize goal of the invention of the present invention equally.
Present invention also offers a kind of appts. for transferring ready-mixed concrete, include the concrete piston described in above-mentioned arbitrary technological scheme, there are whole beneficial effects of above-mentioned concrete piston.
In sum, gap is there is between preposition piston and conveying cylinder, make the hard particles such as tiny silt can enter chamber, scrape husky device and the hard particles such as the silt that the conveying inside wall of cylinder adheres to are swept chamber 3, then the hard particles such as tiny silt are discharged conveying cylinder, without the need to by the hard particles refunds pump concretes such as tiny silt, avoid the quality affecting pump concrete, concrete seal and the vicious circle of carrying cylinder abrasive wear are blocked, for main piston creates a working environment without abrasive wear, extend concrete piston, the working life of concrete seal and conveying cylinder, and without the need to arranging one-way valve on concrete piston, decreasing the complexity of concrete piston parts machining and assembly technology, reducing maintenance difficulties.
In the present invention, term " first ", " second " object only for describing, and instruction or hint relative importance can not be interpreted as, term " multiple " then refers to two or more, unless otherwise clear and definite restriction.
In the present invention, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " all should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (17)
1. a concrete piston, is characterized in that, comprising:
Be arranged on preposition piston (21), connecting rod (22) and the main piston (23) in conveying cylinder (1), the internal face Spielpassung of described preposition piston (21) and described conveying cylinder (1), the internal face interference fit of described main piston (23) and described conveying cylinder (1);
The two ends of described connecting rod (22) are fixedly connected with described main piston (23) with described preposition piston (21) respectively;
Chamber (3) is formed between the internal face of the end face of described preposition piston (21) and described main piston (23) and the outer wall of described connecting rod (22) and described conveying cylinder (1);
Be provided with in described chamber (3) and scrape husky device, described in scrape the contact internal walls of husky device and described conveying cylinder (1), the silt that described conveying cylinder (1) inwall adheres to can be swept described chamber (3);
Described chamber (3) is connected with sand discharge apparatus, and described sand discharge apparatus can discharge the silt in described chamber (3);
Described sand discharge apparatus comprises inhales husky mouth (51), suction sand tube road (52) and sandsucker (53);
The husky mouth of described suction (51) opening is towards described chamber (3), the husky mouth of described suction (51) is communicated with described sandsucker (53) by described suction sand tube road (52), and described sandsucker (53) inhales husky suction for the husky mouth of described suction (51) provides.
2. concrete piston according to claim 1, is characterized in that,
Scrape husky device and comprise wear ring (4), described wear ring (4) is fixedly mounted on the periphery wall of described connecting rod (22), and described wear ring (4) matches with the inwall of described conveying cylinder (1).
3. concrete piston according to claim 1, is characterized in that,
The outer circumferential face of described main piston (23) is provided with concrete seal (231), guide ring (232) and dust-blocking ring (233), the contiguous described connecting rod (22) of described concrete seal (231) is installed, the exterior edge face of the contiguous described main piston (23) of described dust-blocking ring (233) is installed, and described guide ring (232) is positioned between described concrete seal (231) and dust-blocking ring (233); The internal face interference fit of described concrete seal (231) and described conveying cylinder (1).
4. concrete piston according to claim 3, is characterized in that,
Described preposition piston (21), connecting rod (22) and main piston (23) are one-body molded.
5. concrete piston according to claim 3, is characterized in that,
Described preposition piston (21) and connecting rod (22) disjunctor process, and described connecting rod (22) is fixedly connected with described main piston (23) by fixed block;
Described concrete seal (231) is fixed on described main piston (23) by seal pressing plate (234);
Described connecting rod (22) is fixedly connected with described main piston by described seal pressing plate (234).
6., according to the arbitrary described concrete piston of claim 1 to 5, it is characterized in that,
The exterior edge face of described preposition piston (21) is installed with preposition piston baffle (211);
Described preposition piston (21) outer circumferential face is provided with piston ring (212), the internal face Spielpassung of described piston ring (212) and described conveying cylinder (1).
7., according to the arbitrary described concrete piston of claim 1 to 5, it is characterized in that,
The outer circumferential face of described preposition piston (21) is provided with preposition piston guide cover (214), described preposition piston guide cover (214) and described conveying cylinder (1) internal face Spielpassung.
8. concrete piston according to claim 2, is characterized in that,
Described wear ring (4) is provided with the resistance to polish-brush (41) of at least one and described conveying cylinder (1) internal face interference fit;
Described resistance to polish-brush (41) has elasticity.
9. concrete piston according to claim 8, is characterized in that,
The axial pass trough (411) that can pass through for silt is had in the bottom of described resistance to polish-brush (41).
10. concrete piston according to claim 1, is characterized in that,
The husky mouth of described suction (51) inhales husky mouth for the V-arrangement be arranged in described connecting rod (22) outer wall;
Described suction sand tube road (52) comprises arm (521), collecting pipe (522) and inhales husky supervisor (523);
Described arm (521) is arranged in described connecting rod (22), and one end and described V-arrangement inhale that husky mouth is communicated with, the other end is communicated with described collecting pipe (522);
Described collecting pipe (522) is through described main piston (23), and one end is communicated with described arm (521), the other end husky be responsible for (523) with described suction and be communicated with;
Described suction sand supervisor (523) one end is communicated with described collecting pipe (522), the other end is communicated with described sandsucker (53).
11. concrete pistons according to claim 10, is characterized in that,
Described connecting rod (22) outer wall is arranged at intervals with multiple described V-arrangement and inhales husky mouth;
The suction angle of coverage sum that multiple described V-arrangement inhales husky mouth is not less than 360 degree;
Described suction sand tube road (52) comprises many described arms (521), one end and a V-arrangement of each arm (521) are inhaled husky mouth and are communicated with, and the other end of many described arms (521) gathers and is connected with collecting pipe (522) afterwards;
The cross-section area sum of whole described arm (521) is less than the cross-section area of described collecting pipe (522).
12. concrete pistons according to claim 11, is characterized in that,
Multiple described V-arrangement is inhaled husky mouth and is positioned at circumferentially same, and the central angle that every two adjacent described V-arrangements are inhaled between husky mouth is equal; Angle between every two adjacent arms (521) is equal.
13. concrete pistons according to claim 11, is characterized in that,
Described sand discharge apparatus also comprises the slag suction mouth (55) being arranged at described chamber (3) bottom, and described slag suction mouth (55) is communicated with described collecting pipe (522) by pipeline.
14. concrete pistons according to claim 13, is characterized in that,
Described slag suction mouth (55) is communicated with described collecting pipe (522) by the dreg inhaling pipe (551) be arranged in described main piston (23) body;
The cross-section area of whole described arm (521) and the area sum of described slag suction mouth (55) are less than the cross-section area of described collecting pipe (522).
15. concrete pistons according to any one of claim 10-14, is characterized in that,
Described sandsucker (53) is provided with hoisting mechanism (56), described suction sand supervisor (523) is wound on hoisting mechanism (56).
16. concrete pistons according to claim 8 or claim 9, is characterized in that,
The husky mouth of described suction (51) is for being arranged on the circular hole on described wear ring (4), described wear ring (4) is set side by side with the described resistance to polish-brush (41) of multiple and described conveying cylinder (1) internal face interference fit along the axis of described concrete piston, the forward piston side of putting of each resistance to polish-brush (41) is equipped with the husky mouth of described suction (51);
Be provided with in described connecting rod (22) and organize radial hole (524) and at least one axial bore (525) more, the opening of described radial hole (524) is connected with the husky mouth of described suction (51) of described wear ring (4), and the other end of described radial hole (524) is all communicated with described axial bore (525);
Be provided with connecting tube (526) in described main piston (23), described connecting tube (526) one end is connected with described axial bore (525), and the other end is responsible for (523) with suction sand and is communicated with.
17. 1 kinds of appts. for transferring ready-mixed concretes, is characterized in that, include the concrete piston as described in any one of claim 1 to 16.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210101472.7A CN102619977B (en) | 2012-04-09 | 2012-04-09 | Novel concrete piston and concrete transporting device having same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210101472.7A CN102619977B (en) | 2012-04-09 | 2012-04-09 | Novel concrete piston and concrete transporting device having same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102619977A CN102619977A (en) | 2012-08-01 |
| CN102619977B true CN102619977B (en) | 2015-04-15 |
Family
ID=46560096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210101472.7A Active CN102619977B (en) | 2012-04-09 | 2012-04-09 | Novel concrete piston and concrete transporting device having same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102619977B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6290475B1 (en) * | 2000-03-30 | 2001-09-18 | Jerry M. Snow | Helical wiper for sucker rod pump |
| DE20319933U1 (en) * | 2003-12-23 | 2004-04-01 | Hansen, Christoph | Pump for sludge and gravel has a double piston with floating disc valves to create a water piston effect for improved pumping efficiency |
| CN200971848Y (en) * | 2006-11-20 | 2007-11-07 | 冯春国 | Corrosion-proof sand-proof underground beam unit |
| CN101294445B (en) * | 2008-06-26 | 2010-04-21 | 三一重工股份有限公司 | Concrete piston and concrete conveying apparatus with the concrete piston |
| CN202579160U (en) * | 2012-04-09 | 2012-12-05 | 三一重工股份有限公司 | Novel concrete piston and concrete conveying device with novel concrete piston |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS606082A (en) * | 1983-06-23 | 1985-01-12 | Itsumi Kawa | Method and device for sending pressure-sent body by pressure |
| US6568925B2 (en) * | 2001-03-28 | 2003-05-27 | Eric Gunderson | Abrasive liquid pump apparatus and method |
| US20080257143A1 (en) * | 2007-04-17 | 2008-10-23 | Leman William W | Methods and apparatus for a fluid or slurry pump piston |
| NO329730B1 (en) * | 2007-10-17 | 2010-12-13 | Tts Sense Mud As | Piston Pump |
| CN201096081Y (en) * | 2007-11-09 | 2008-08-06 | 刘延林 | Sandproof descaling oil pump |
-
2012
- 2012-04-09 CN CN201210101472.7A patent/CN102619977B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6290475B1 (en) * | 2000-03-30 | 2001-09-18 | Jerry M. Snow | Helical wiper for sucker rod pump |
| DE20319933U1 (en) * | 2003-12-23 | 2004-04-01 | Hansen, Christoph | Pump for sludge and gravel has a double piston with floating disc valves to create a water piston effect for improved pumping efficiency |
| CN200971848Y (en) * | 2006-11-20 | 2007-11-07 | 冯春国 | Corrosion-proof sand-proof underground beam unit |
| CN101294445B (en) * | 2008-06-26 | 2010-04-21 | 三一重工股份有限公司 | Concrete piston and concrete conveying apparatus with the concrete piston |
| CN202579160U (en) * | 2012-04-09 | 2012-12-05 | 三一重工股份有限公司 | Novel concrete piston and concrete conveying device with novel concrete piston |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102619977A (en) | 2012-08-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209800178U (en) | reciprocating type three-cylinder plunger pump for oil and gas field | |
| CN102619977B (en) | Novel concrete piston and concrete transporting device having same | |
| CN103874860A (en) | Bearing assembly for a vertical turbine pump | |
| CN202579160U (en) | Novel concrete piston and concrete conveying device with novel concrete piston | |
| CN213508865U (en) | Urban underground pipeline detecting, repairing and dredging machine | |
| CN102606474B (en) | Abrasion-resistant concrete piston and concrete conveying device | |
| CN109731863A (en) | A kind of pipe detection and dredging robot | |
| CN202579159U (en) | Anti-wear concrete piston and concrete pumping device | |
| CN105780841B (en) | A kind of pneumatic type canal lining cleaning machine | |
| CN101053725A (en) | Exhaust gas filter | |
| CN210266348U (en) | Shock-resistant equal-diameter engineering plastic elbow | |
| CN1774317A (en) | Pneumatic rock drill | |
| RU2372528C1 (en) | Pump device | |
| CN210586230U (en) | Broken cleaning device of pipeline impurity | |
| CN201090154Y (en) | New type drilling water tap | |
| CN208281688U (en) | A kind of spoil disposal bent pipe anti-wear structure | |
| CN201333741Y (en) | Shaft end sealing device of concrete mixer | |
| CN110925191A (en) | Sludge dredging environment-friendly pump | |
| CN216419768U (en) | Pipeline type iron remover | |
| CN215633617U (en) | Oil scraper ring assembly and piston compressor | |
| CN214665956U (en) | Rotary kiln tail unloading pipeline assembly | |
| CN201960458U (en) | Oblique drum type shot blasting machine | |
| CN214789185U (en) | Shunt valve | |
| CN109707031A (en) | A kind of pipeline Accrete clearing device | |
| CN212079610U (en) | Skirt valve, distribution valve and pumping machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |