CN202545232U - Adaptive concrete piston and concrete conveying device - Google Patents
Adaptive concrete piston and concrete conveying device Download PDFInfo
- Publication number
- CN202545232U CN202545232U CN2012201338859U CN201220133885U CN202545232U CN 202545232 U CN202545232 U CN 202545232U CN 2012201338859 U CN2012201338859 U CN 2012201338859U CN 201220133885 U CN201220133885 U CN 201220133885U CN 202545232 U CN202545232 U CN 202545232U
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- concrete
- piston
- seal
- concrete piston
- self adaption
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Abstract
The utility model provides an adaptive concrete piston. The adaptive concrete piston comprises a concrete piston body fixedly connected with a piston rod, wherein the concrete piston body comprises a piston skeleton, seal bodies, guide rings, dust rings and a seal body pressing plate, wherein the seal bodies are fixed on the piston skeleton by the seal body pressing plate; the guide rings and the dust rings are installed on the outer circumference surface of the piston skeleton; the seal bodies are in interference fit with the inner wall surfaces of a conveying cylinder; the guide rings and the dust rings are matched with the inner wall surfaces of the conveying cylinder; a plurality of grooves are circumferentially formed on the outer circumference surfaces of the seal bodies; and the sizes of the grooves are determined on the premise of not affecting the sealing functions of the seal bodies. The utility model also provides a concrete conveying device comprising the adaptive concrete piston. By adopting the technical scheme provided by the utility model, the problem of the coaxial error of the conveying cylinder can be solved, thus effectively prolonging the service life of the concrete piston.
Description
Technical field
The utility model relates to engineering machinery field, in particular to a kind of self adaption concrete piston and a kind of transmission and concrete transmission device.
Background technique
Concrete pump is a kind of Architectural Equipment of utilizing pressure that concrete is carried along pipeline continuously, and the concrete piston is its core component.Commonly used is the combined concrete piston at present, and its typical structure is as shown in Figure 1, and it is made up of pressing plate 10, seal 20, guide ring 30, dust ring 40, bolt 50, piston skeleton 60.Under the ideal situation, seal 20 and conveying cylinder 70 interference fit are realized sealing and are scraped husky function, prevent that concrete grout from getting into the scrobicular ring between seal 20 and the guide ring 30; Guide ring 30 and lubricating grease on every side thereof are realized concrete piston guide and lubricating function; Dust ring 40 cooperates the dustproof and water proof function of realization with carrying cylinder 70.
Yet the concrete pistons work receives processing of concrete piston details and assembly precision restriction (particularly coaxality and cylindricity) in the conveying cylinder of 2 meters surplus length; Multidirectional stream (concrete) high pressure and erosion, hydraulic system flutter, influences such as elongate plunger rod distortion; Can cause the aggravation of concrete piston eccentric wear; The concrete seal is the acute angle friction with carrying cylinder, causes its wearing and tearing fast at high temperature, causes the concrete seal break-off at last.
It is thus clear that carrying the cylinder coaxiality error is a concrete piston low major reason of working life.
Therefore, how solving and carry the same axis error of cylinder, thereby prolong the working life of concrete piston effectively, is the technical problem of needing solution at present badly.
The model utility content
Based on the above-mentioned background technology, need a kind of new concrete piston, can solve and carry the same axis error of cylinder, thereby prolong the working life of concrete piston effectively.
The utility model provides a kind of self adaption concrete piston; Comprise the concrete piston body that is fixedly connected with piston rod; Said concrete piston body comprises piston skeleton, seal, guide ring and dust ring; Said seal is fixed on the said piston skeleton, and said guide ring and dust ring are installed on the outer circumferential face of said piston skeleton, said seal and the internal face interference fit of carrying cylinder; Said guide ring and dust ring match with said conveying inside wall of cylinder face, on the outer circumferential face of said seal, circumferentially have many strias.
Preferably, on the outer circumferential face of said guide ring and/or dust ring, also circumferentially have many said strias.
Preferably, half outer circumferential face of rich said seal, guide ring and/or dust ring of said stria ring.
Preferably, said stria is around whole outer circumferential faces of said seal, guide ring and/or dust ring.
Preferably, the cross section of said stria is circle, triangle or quadrilateral.
Preferably, said concrete piston body is fixedly connected with said piston rod through contiguous block;
Said contiguous block adopts the pressure-bearing material with elasticity and toughness to process, and said piston rod adopts metallic material to process.
Preferably, said contiguous block is a carbon fiber block.
Preferably, said concrete piston body is connected with said piston rod through Hooks coupling universal coupling; The movable amplitude of said Hooks coupling universal coupling is less than positive and negative degree, and said piston rod adopts metallic material to process.
Preferably, said concrete piston body and said piston rod are rigidly connected; The outer circumferential face of the joint of said piston rod and said concrete piston body is provided with a plurality of said strias.
Preferably, said concrete piston body also comprises the seal pressing plate, and said seal is held between said seal pressing plate and the said piston skeleton.
The utility model also provides a kind of transmission and concrete transmission device, comprises the described self adaption concrete of above-mentioned arbitrary technological scheme piston.
In sum, the self adaption concrete piston that the utility model provided can adapt to the coaxiality error and the bending deflection of carrying cylinder, has slowed down the harmful effect that concrete piston eccentric wear brings, and has prolonged the working life of concrete piston and easily damaged parts thereof.
Description of drawings
Fig. 1 is a concrete structure of piston sectional view in the existing technology;
Fig. 2 is the self adaption concrete structure of piston cross-sectional schematic according to an embodiment of the utility model;
Fig. 3 is the A portion enlarged diagram of self adaption concrete piston among Fig. 2;
Fig. 4 is that B among Fig. 2 is to revolved view;
Fig. 5 is the schematic representation of the said self adaption concrete of the utility model pistons work state; And
Fig. 6 is the C portion enlarged view among Fig. 5.
Embodiment
In order more to be expressly understood above-mentioned purpose, the feature and advantage of the utility model, the utility model is further described in detail below in conjunction with accompanying drawing and embodiment.
A lot of details have been set forth in the following description so that make much of the utility model; But; The utility model can also adopt other to be different from other modes described here and implement, and therefore, the protection domain of the utility model is not limited to following disclosed specific embodiment.
Fig. 2 is the self adaption concrete structure of piston cross-sectional schematic according to an embodiment of the utility model; Fig. 3 is the A portion enlarged diagram of self adaption concrete piston among Fig. 2; Fig. 4 is that B among Fig. 2 is to revolved view.
Extremely shown in Figure 4 like Fig. 2; The utility model provides a kind of self adaption concrete piston; Comprise the concrete piston body 1 that is fixedly connected with piston rod 2, the concrete piston body comprises piston skeleton 11, seal 12, guide ring 13 and dust ring 14, and seal 12 is fixed on the piston skeleton 11; Guide ring 13 is installed on the outer circumferential face of piston skeleton 11 with dust ring 14; Seal 12 and the internal face interference fit of carrying cylinder 3, guide ring 13 matches with carrying cylinder 3 internal faces with dust ring 14, on the outer circumferential face of seal 12, circumferentially has one or more stria 4.In the present embodiment, said seal 12 is fixed on the piston skeleton 11 through seal pressing plate 15, and said seal 12 is held between seal pressing plate 15 and the piston skeleton 11.The size of said stria 4 is confirmed with the sealing function that does not influence seal 12.
In this technological scheme; Circumferentially have many strias 4 (as shown in Figure 4) on the outer circumferential face of seal 12, when error appearred in the coaxality of carrying cylinder 3, the edge of seal 12 strias can be crooked in stria 4; Thereby reduce and the area of contact of piston cylinder inwall and the hot generation of reducing friction; Alleviate the eccentric wear of carrying cylinder 3 coaxiality errors to be produced, avoid seal 12 premature wears too fast, prolonged the working life of concrete piston.
Preferably, on the outer circumferential face of guide ring 13 and/or dust ring 14, also circumferentially have many strias 4, the size of stria 4 is confirmed with the guide function that does not influence guide ring 13, the dust-break function of dust ring 14.
In this technological scheme; On the outer circumferential face of guide ring 13 and/or dust ring 14, also circumferentially have many strias 4; When error appearred in the coaxality of carrying cylinder 3, the stria edge of guide ring 12 and/or dust ring 14 can be crooked in stria 4, carries cylinder 3 coaxiality errors to produce eccentric wear thereby alleviate; Avoid the premature wear of guide ring 12 and/or dust ring 14, also prolonged the working life of concrete piston.
Preferably, stria 4 can be around half outer circumferential face of seal 12, guide ring 13 and/or dust ring 14, also can be around whole outer circumferential faces of seal 12, guide ring 13 and/or dust ring 14; The cross section of stria 4 can be quadrilateral, or triangle, and perhaps circle all can.It will be understood by those of skill in the art that it to be other shape,, all be fine so long as can reduce the stria of the Any shape of the wearing and tearing that coaxiality error brings.
The concrete piston body is fixedly connected with piston rod 2 through contiguous block 5; Contiguous block 5 adopts the pressure-bearing material with elasticity and toughness to process, and piston rod 2 adopts metallic material to process.In this technological scheme; Contiguous block 5 adopts the pressure-bearing material with elasticity and toughness to process, can eliminate carry cylinder 3 usefulness of a specified duration the influence that brings of rear curved distortion, thereby avoid carrying the bending deflection generation eccentric wear of cylinder; Reduce the premature wear of concrete piston, prolonged the working life of concrete piston.For example, contiguous block 5 can be carbon fiber block, adopts carbon fiber block, and intensity is high, and good toughness can certainly be other flexible and pressure-bearing macromolecular material toughness.
Perhaps, the concrete piston body is connected with piston rod 2 through Hooks coupling universal coupling; The movable amplitude of Hooks coupling universal coupling is less than positive and negative 5 degree, and piston rod 2 adopts metallic material to process.In this technological scheme; The concrete piston body is connected with piston rod 2 through Hooks coupling universal coupling; Hooks coupling universal coupling is only can be by a small margin movable, then also can eliminate carry cylinder 3 usefulness of a specified duration the influence that brings of rear curved distortion and do not influence normal feeding work, thereby alleviate the eccentric wear that the bending deflection of carrying cylinder produces; Reduce the premature wear of concrete piston, prolonged the working life of concrete piston.
Perhaps, concrete piston body and piston rod 2 are rigidly connected; But the outer circumferential face of the joint of piston rod 2 and concrete piston body is provided with a plurality of said strias.In this technological scheme; After the outer circumferential face of the joint of piston rod 2 and concrete piston body is provided with a plurality of strias; Just the same as elastic coupling flexible coupling, can realize equally eliminating carry cylinder 3 usefulness of a specified duration the influence that brings of rear curved distortion, thereby the eccentric wear that reduces to carry the bending deflection of cylinder to produce; Reduce the premature wear of concrete piston, prolonged the working life of concrete piston.
Fig. 5 is the schematic representation of the said self adaption concrete of the utility model pistons work state; Fig. 6 is the C portion enlarged view among Fig. 5.
Like Fig. 5 and shown in Figure 6; Having provided the said self adaption concrete of the utility model piston can reduce wearing and tearing, improve the principle in working life: the said self adaption concrete of the utility model piston; The outer circumferential face of cause concrete seal 12, guide sleeve 13 and/or dust ring 14 is provided with a plurality of strias 4, then when producing coaxiality error or 3 distortion of said conveying cylinder, when then concrete seal 12, guide sleeve 13 and/or dust ring 14 contact with the internal face of carrying cylinder 3; The material of stria 4 annexes is crooked in stria 4; Thereby reduce radial deformation, and with carry contacting of cylinder 3 internal faces, thereby the generation and the collection that reduce heat are collected together; And then reduce the early stage wearing and tearing of concrete seal 12, guide sleeve 13 and dust ring 14, the working life of improving the concrete piston.
The joint of this self adaption concrete piston and piston rod 2 is provided with adopts flexible material to process; Perhaps on the peripheral wall surfaces of joint, have said stria equally; Then can be when carrying the cylinder distortion; Reduce concrete piston body and the coaxiality error of carrying cylinder, further reduce the wearing and tearing of concrete seal, guide sleeve and dust ring and conveying inside wall of cylinder face, prolong the working life of concrete piston and annex.
The utility model also provides a kind of transmission and concrete transmission device, comprises self adaption concrete piston in above-mentioned arbitrary technological scheme.This transmission and concrete transmission device has whole beneficial effects of above-mentioned self adaption concrete piston, repeats no more.
In sum, the self adaption concrete piston that the utility model provided can adapt to the coaxiality error and the bending deflection of carrying cylinder, has slowed down the harmful effect that concrete piston eccentric wear brings, and has prolonged the working life of concrete piston and easily damaged parts thereof.
The preferred embodiment that the above is merely the utility model is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within the spirit and principle of 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 (11)
1. self adaption concrete piston; Comprise the concrete piston body that is connected with piston rod (2); It is characterized in that said concrete piston body comprises piston skeleton (11), seal (12), guide ring (13) and dust ring (14), said seal (12) is fixed on the said piston skeleton (11); Said guide ring (13) and said dust ring (14) are installed on the outer circumferential face of said piston skeleton (11); Said seal (12) and the internal face interference fit of carrying cylinder (3), said guide ring (13) and said dust ring (14) match with said conveying cylinder (3) internal face
It circumferentially has one or more stria (4) in the outer circumferential face upper edge of said seal (12).
2. self adaption concrete piston according to claim 1 is characterized in that,
It circumferentially has many said strias (4) in the outer circumferential face upper edge of said guide ring (13) and/or said dust ring (14).
3. self adaption concrete piston according to claim 1 and 2 is characterized in that,
Said stria (4) is around half outer circumferential face of said seal (12), said guide ring (13) and/or said dust ring (14).
4. self adaption concrete piston according to claim 1 and 2 is characterized in that,
Said stria (4) is around the whole outer circumferential face of said seal (12), said guide ring (13) and/or said dust ring (14).
5. self adaption concrete piston according to claim 1 and 2 is characterized in that,
The cross section of said stria (4) is circle, triangle or quadrilateral.
6. self adaption concrete piston according to claim 1 and 2 is characterized in that,
Said concrete piston body is fixedly connected with said piston rod (2) through contiguous block (5);
Said contiguous block (5) adopts the pressure-bearing material with elasticity and toughness to process, and said piston rod (2) adopts metallic material to process.
7. self adaption concrete piston according to claim 6 is characterized in that said contiguous block (5) is a carbon fiber block.
8. self adaption concrete piston according to claim 1 and 2 is characterized in that,
Said concrete piston body is connected with said piston rod (2) through Hooks coupling universal coupling;
The movable amplitude of said Hooks coupling universal coupling is less than positive and negative 5 degree, and said piston rod (2) adopts metallic material to process.
9. self adaption concrete piston according to claim 1 and 2 is characterized in that,
Said concrete piston body and said piston rod (2) are rigidly connected;
The outer circumferential face of the joint of said piston rod (2) and said concrete piston body is provided with a plurality of said strias (4).
10. self adaption concrete piston according to claim 1 and 2 is characterized in that said concrete piston body also comprises seal pressing plate (15), and said seal (12) is held between said seal pressing plate (15) and the said piston skeleton (11).
11. a transmission and concrete transmission device is characterized in that, includes like each described self adaption concrete piston of claim 1 to 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201338859U CN202545232U (en) | 2012-04-01 | 2012-04-01 | Adaptive concrete piston and concrete conveying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201338859U CN202545232U (en) | 2012-04-01 | 2012-04-01 | Adaptive concrete piston and concrete conveying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202545232U true CN202545232U (en) | 2012-11-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201338859U Expired - Lifetime CN202545232U (en) | 2012-04-01 | 2012-04-01 | Adaptive concrete piston and concrete conveying device |
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| Country | Link |
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| CN (1) | CN202545232U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102606473A (en) * | 2012-04-01 | 2012-07-25 | 三一重工股份有限公司 | Adaptive concrete piston and concrete conveying device |
| CN108843558A (en) * | 2018-06-15 | 2018-11-20 | 深圳市益思精密五金有限公司 | High pressure constant flow pump, its flexible column stopper rod and the method for reducing pressure fluctuation |
-
2012
- 2012-04-01 CN CN2012201338859U patent/CN202545232U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102606473A (en) * | 2012-04-01 | 2012-07-25 | 三一重工股份有限公司 | Adaptive concrete piston and concrete conveying device |
| CN102606473B (en) * | 2012-04-01 | 2015-07-01 | 三一重工股份有限公司 | Adaptive concrete piston and concrete conveying device |
| CN108843558A (en) * | 2018-06-15 | 2018-11-20 | 深圳市益思精密五金有限公司 | High pressure constant flow pump, its flexible column stopper rod and the method for reducing pressure fluctuation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121121 |