CN101691861A - Concrete pumping equipment and piston body thereof - Google Patents
Concrete pumping equipment and piston body thereof Download PDFInfo
- Publication number
- CN101691861A CN101691861A CN200910207245A CN200910207245A CN101691861A CN 101691861 A CN101691861 A CN 101691861A CN 200910207245 A CN200910207245 A CN 200910207245A CN 200910207245 A CN200910207245 A CN 200910207245A CN 101691861 A CN101691861 A CN 101691861A
- Authority
- CN
- China
- Prior art keywords
- piston body
- skeleton
- sealed member
- cylindrical
- plate shape
- 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.)
- Pending
Links
Images
Abstract
The invention discloses a piston body for concrete pumping equipment, which comprises a main part connected to a piston rod of the concrete pumping equipment, and a sealing component (2) which is around the main part and can be detachably arranged at the end part of the main part. The sealing component (2) comprises a framework part (22) and a covering part (21); the framework part (22) is embedded in the covering part (21). The invention also discloses concrete pumping equipment comprising the piston body. The concrete pumping equipment and the sealing component (2) of the piston body of the concrete pumping equipment of the invention have good mechanical properties, and because the framework part (22) is embedded in the covering part (21), the bonding force of the framework part (22) and the covering part (21) is increased. As a result, the combination of the framework part (22) and the covering part (21) is better, the service life of the sealing component of the piston body is prolonged, and economical efficiency is improved during the use of the piston body.
Description
Technical field
The present invention relates to technical field of engineering machinery, particularly relate to a kind of piston body that is used for concrete pumping equipment.In addition, the invention still further relates to a kind of concrete pumping equipment that comprises above-mentioned piston body.
Background technique
Along with the fast development of China's economic construction, being on the increase of construction project, market also increases day by day for the demand of concrete equipment.
Piston is the critical component in the concrete pumping equipment, and piston body is again the critical component of piston, and therefore, the performance of piston body directly affects the performance of piston, and then affects the performance of concrete pumping equipment.
Please refer to Fig. 1 and Fig. 2, Fig. 1 is the structural representation of a kind of typical piston body in the prior art; Fig. 2 is a kind of structural representation of sealed member of typical piston body.
As shown in Figure 1, piston body comprises main part 12 and sealed member 11, and sealed member 11 is connected by pressing plate 13 with main part 12, and sealed member 11 mainly seals, 12 guiding of main part and dustproof effect.
As shown in Figure 2, the sealed member 11 of piston body comprises skeleton part 113 and covered section 112, the front end of covered section 112 is provided with seal lip 1121, to guarantee sealability, offer oil groove 1122 on the outer side wall of sealed member, have breach 1123 between the oil groove 1122, the lubricant oil in the oil groove 1123 can provide lubricated for the to-and-fro motion of piston body, to reduce the rate of wear of piston body.Skeleton part 113 can be improved the mechanical property of covered section 112, reduces the heat of saving bit by bit owing to the distortion of covered section 112, reduces the rising of the temperature of the covered section 112 that causes thus.
In this technological scheme, be the applying means of fixation between skeleton part 113 and the covered section 112, between the two relatively poor in conjunction with dynamics, in the course of the work, piston body axis along piston in piston cylinder moves reciprocatingly, its 112 moment and piston cylinder friction-produced heat energy of covered section, under the effect of frictional force, covered section 112 easy deformation of being heated, be easy to cause covered section 112 to break away from skeleton part 113, thereby not only make the supporting effect of 113 pairs of covered sections 112 of skeleton part reduce, and cause tearing of covered section 112 easily, this has had a strong impact on the working life of the sealed member 11 of piston body, and then has influenced the working life of piston body.
Therefore, how to improve the skeleton part of piston body sealed member and the combination force between the covered section, be the present technical issues that need to address of those skilled in the art the working life that prolongs the sealed member of piston body.
Summary of the invention
The purpose of this invention is to provide a kind of piston body that is used for concrete pumping equipment, have higher combination force between the skeleton part of this piston body sealed member and the covered section, prolong the working life of the sealed member of piston body.The invention still further relates to a kind of concrete pumping equipment that comprises above-mentioned piston body.
For solving the problems of the technologies described above, the invention provides a kind of piston body, be used for concrete pumping equipment, comprise the main part that is connected with the piston rod of described concrete pumping equipment, with around described main part and be arranged at the sealed member of the end of described main part removably, described sealed member comprises skeleton part and covered section, and described skeleton is partially submerged into the inside of described covered section.
Preferably, described framework part branch comprises first cylindrical skeleton and ring flat-plate shape skeleton, and the axis of described first cylindrical skeleton overlaps substantially with the axis of described piston body, and described ring flat-plate shape skeleton is fixed in the madial wall of described first cylindrical skeleton with its outer rim.
Preferably, described ring flat-plate shape skeleton is fixed in the front end of described first cylindrical skeleton with its outer rim.
Preferably, described ring flat-plate shape skeleton is fixed in the rear end of described first cylindrical skeleton with its outer rim.
Preferably, the front end of described first cylindrical skeleton is provided with by the flared section of its rear end to its front end flaring.
Preferably, also comprise second cylindrical skeleton, the axis of described second cylindrical skeleton overlaps substantially with the axis of described piston body, the fixedly connected described ring flat-plate shape skeleton of the outer side wall of described second cylindrical skeleton.
Preferably, described second cylindrical skeleton offers diversion gap.
Preferably, at least one offers diversion gap in the two in the end of the internal ring portion of described ring flat-plate shape skeleton and described first cylindrical skeleton.
Preferably, at least one offers a plurality of through holes in the two for described ring flat-plate shape skeleton and described first cylindrical skeleton.
Preferably, described sealed member comprises the preceding sealed member of the front end that is arranged at described main part and is arranged at the back sealed member of the rearward end of described main part, the front-end face of described back sealed member is towards the rear end of described piston body, and sealed member is fitted and connected with described back sealed member before described.
Preferably, described preceding sealed member and described back sealed member are fitted and connected by regulating parts.
Preferably, described adjusting parts are steel plate.
For solving the problems of the technologies described above, this is also invented a kind of concrete pumping equipment is provided, and comprises above-mentioned each described piston body.
Piston body provided by the present invention, be used for concrete pumping equipment, comprise the main part that is connected with the piston rod of concrete pumping equipment, with around main part and be arranged at the sealed member of the end of main part removably, sealed member comprises skeleton part and covered section, and skeleton is partially submerged into the inside of covered section.Like this, combination force between skeleton part and the covered section significantly improves, make the skeleton part tightr with combining of covered section, overcome original piston body in the to-and-fro motion process because the defective of separating of the skeleton that the effect of frictional force causes part and covered section, thereby, greatly reduce covered section and torn probability with the sealed member premature wear, further prolonged the working life of the sealed member of piston body, improved the Economy in the piston body using process.
In a kind of preferred implementation, the framework part branch of piston body provided by the present invention comprises first cylindrical skeleton and ring flat-plate shape skeleton, the axis of first cylindrical skeleton overlaps substantially with the axis of piston body, and ring flat-plate shape skeleton is fixed in the madial wall of first cylindrical skeleton with its outer rim.First cylindrical skeleton has supporting effect to the peripheral part of covered section, has alleviated the distortion of covered section peripheral part, has reduced the wearing and tearing of covered section peripheral part; Ring flat-plate shape skeleton has supporting effect to the front end of covered section, the mechanical property of front end of covered section and the anti-pressure ability of whole piston body have been improved, thereby avoided the sidewall of the sealed member that the effect owing to the pressure of concrete mud water causes to heave to periphery, improved the binding ability of the peripheral part and first cylindrical skeleton of covered section, reduce the wearing and tearing of the periphery wall of covered section, prolonged the working life of piston body.
In another kind of preferred implementation, at least one offers a plurality of through holes in the two for the ring flat-plate shape skeleton of piston body provided by the present invention and first cylindrical skeleton.Like this, just can make covered section pass through hole and combine, make the skeleton part tightr, further improve of the supporting effect of skeleton part covered section with combining of covered section with the skeleton part, prolong the working life of piston body, improved the Economy in the piston using process.
In another kind of preferred implementation, sealed member and back sealed member before the sealed member of piston body provided by the present invention comprises, preceding sealed member is arranged at the front end of main part, back sealed member is arranged at the rearward end of main part, the front-end face of back sealed member is towards the rear end of piston body, preceding sealed member and the relative setting of fitting of back sealed member.Like this, on the one hand, just formed a sealed chamber between the seal lip of the seal lip of preceding sealed member and back sealed member and the casing wall of piston cylinder, thereby guarantee that lubricant oil remains in the sealed chamber for a long time, sealed member is lubricated, reduce friction and give birth to heat, reduce the rate of wear of sealed member, prolong the working life of sealed member; Simultaneously, also reduce the number of part, and then reduced the complexity and the manufacturing cost of piston body manufacturing process, reduced the complexity of installation process; On the other hand, because preceding sealed member and back sealed member have symmetrical structure substantially, under normal assembling situation, the seal lip of preceding sealed member mainly plays sealing and pressure transmission effect, be subjected to bigger frictional force, then the seal lip of sealed member is positioned at the rear end of piston body, the main dustproof effect that rises, the active force that is subjected to is less, and it is lighter to wear and tear, therefore, when the seal lip sealability of current sealed member descends, the seal lip of back sealed member still has the better seal performance, at this moment, just preceding sealed member and back sealed member can be changed, bear the effect of sealing and pressure transmission by the seal lip of back sealed member, like this, can further prolong the working life of piston body, improve the Economy in the using process of piston body.
The beneficial effect of concrete pumping equipment provided by the present invention and the beneficial effect of piston body are similar, do not repeat them here.
Description of drawings
Fig. 1 is the structural representation of a kind of typical piston body in the prior art;
Fig. 2 is a kind of structural representation of sealed member of typical piston body;
Fig. 3 is sealed member first embodiment's of a piston body provided by the present invention structural representation;
Fig. 4 is sealed member second embodiment's of a piston body provided by the present invention structural representation;
Fig. 5 is sealed member the 3rd embodiment's of a piston body provided by the present invention structural representation;
Fig. 6 is sealed member the 4th embodiment's of a piston body provided by the present invention structural representation;
Fig. 7 looks schematic representation for the skeleton master partly of the sealed member that a kind of embodiment of the present invention is provided;
Fig. 8 is the schematic top plan view of the skeleton part of sealed member shown in Figure 7;
Fig. 9 is the expansion schematic representation of the skeleton part of sealed member shown in Figure 7;
Figure 10 looks schematic representation for the skeleton master partly of the sealed member that the another kind of embodiment of the present invention is provided;
Figure 11 is the schematic top plan view of the skeleton part of sealed member shown in Figure 10;
Figure 12 is the expansion schematic representation of the skeleton part of sealed member shown in Figure 10;
The structural representation of the piston body that Figure 13 is provided for a kind of embodiment of the present invention.
Embodiment
Core of the present invention provides a kind of piston body that is used for concrete pumping equipment, has higher combination force between the skeleton part of this piston body sealed member and the covered section, prolongs the working life of the sealed member of piston body.Another core of the present invention provides a kind of concrete pumping equipment that comprises above-mentioned piston body.
In order to make those skilled in the art person understand the present invention program better, the present invention is described in further detail below in conjunction with the drawings and specific embodiments.
Please refer to Fig. 3 to Fig. 6, Fig. 3 is sealed member first embodiment's of a piston body provided by the present invention structural representation; Fig. 4 is sealed member second embodiment's of a piston body provided by the present invention structural representation; Fig. 5 is sealed member the 3rd embodiment's of a piston body provided by the present invention structural representation; Fig. 6 is sealed member the 4th embodiment's of a piston body provided by the present invention structural representation.
In a kind of embodiment, as shown in Figure 3, piston body provided by the present invention comprises main part (not shown) and sealed member 2, and main part is connected with the piston rod (not shown) of concrete pumping equipment, moves reciprocatingly to drive piston body.Sealed member 2 is around main part and be arranged at the end of main part, and has seal lip 211, and sealed member 2 is connected removably with main part; Further, sealed member 2 comprises skeleton part 22 and covered section 21 again, and skeleton part 22 embeds the inside of covered section 21.The inside that skeleton part mentioned above 22 embeds covered sections 21 not only comprises the situations that skeleton part 22 is encased by covered section 21 fully, and comprises the situation of the end face of the end of skeleton part 22 and covered section 21.
In the course of the work, described piston body moves reciprocatingly in piston cylinder at its axis of the drive lower edge of described piston rod, and then to concrete mud water generates pump action; When sealed member 2 bears the pressure of slime water, also in order to guarantee the sealing in the piston pumping process.
In a kind of embodiment, as shown in Figure 3, the skeleton part 22 of the sealed member 2 of piston body provided by the present invention can be divided into first cylindrical skeleton 222 and ring flat-plate shape skeleton 221 again, the axis of first cylindrical skeleton 222 overlaps substantially with the axis of described piston body, and ring flat-plate shape skeleton 221 is fixedly connected on the madial wall of first cylindrical skeleton 222 with its outer rim; Seal lip 211 is arranged at the outer rim of covered section 21.
The peripheral part of 222 pairs of covered sections 21 of first cylindrical skeleton has supporting effect, has alleviated the distortion of covered section 21 peripheral parts, has reduced the wearing and tearing of covered section 21 peripheral parts; The front end of 221 pairs of covered sections 21 of ring flat-plate shape skeleton has supporting effect, the mechanical property of front end of covered section 21 and the anti-pressure ability of whole piston body have been improved, thereby avoided the sidewall of the sealed member 2 that the effect owing to the pressure of concrete mud water causes to heave to periphery, improved the binding ability of the peripheral part and first cylindrical skeleton 222 of covered section 21, reduce the wearing and tearing of the periphery wall of covered section 21, prolonged the working life of piston body.
Particularly, as shown in Figure 3, ring flat-plate shape skeleton 221 can be fixed in the front end of first cylindrical skeleton 222 with its outer rim.Front end as herein described is meant the end that piston body contacts with the concrete mud water.
Like this, can guarantee that skeleton part 22 and covered section 21 combine preferably, also make the supporting effect of 221 pairs of covered section 21 front ends of ring flat-plate shape skeleton better, thereby make covered section 21 have mechanical property preferably for a long time, alleviate the early failue problem of the piston body that the sex change owing to sealed member 2 causes to a certain extent, prolonged the working life of piston body.
Certainly, as shown in Figure 4, ring flat-plate shape skeleton 221 also can be fixed in the rear end of first cylindrical skeleton 222.Because sealed member 2 processes by Shooting Technique, in course of working, skeleton part 22 is placed mould, and add core, the liquid with the material polyurethane of covered section 21 is poured in the mould moulding then.Like this, can make things convenient for the processing of hermetic unit 2, in injection moulding process, the material polyurethane of covered section 21 can encase skeleton part 22 easily, only stays the ear end face of ring flat-plate shape skeleton 221 and the flush of covered section.Rear end described herein is meant an end relative with previously described front end.
As shown in Figure 5, the front end of first cylindrical skeleton 222 can also be provided with by the flared section 224 of its rear end to its front end flaring.The skeleton part 22 that is arranged so that of flared section 224 has been improved the mechanical property of the seal lip 211 of covered section 21, on the basis that guarantees seal action, reduced the distortion of seal lip 211, prolong the working life of seal lip 211, thereby prolonged the working life of sealed member 2 and piston body.
In another kind of embodiment, as shown in Figure 6, skeleton part 22 comprises that also the axis of second cylindrical skeleton, 223, the second cylindrical skeletons 223 overlaps substantially with the axis of piston body, the fixedly connected ring flat-plate shape of the outer side wall of second cylindrical skeleton 223 skeleton 221.The setting of second cylindrical skeleton 223 makes the skeleton part 22 and the coaxality of core be improved, and has improved the quality of processing of sealed member 2.
In order to improve the binding ability of skeleton part 22 and covered section 21, can also on second cylindrical skeleton 223, offer diversion gap 2212 (being shown among Fig. 9).The setting of diversion gap 2212 can make polyurethane flow along diversion gap 2212, thereby skeleton part 22 is embedded in the covered section 21, has not only made things convenient for the processing of sealed member 2, and has improved the combination force between skeleton part 22 and the covered section 21.Can do further above-mentioned skeleton part 22 and improve.
Please refer to Fig. 7 to Fig. 9, Fig. 7 looks schematic representation for the skeleton master partly of the sealed member that a kind of embodiment of the present invention is provided; Fig. 8 is the schematic top plan view of the skeleton part of sealed member shown in Figure 7; Fig. 9 is the expansion schematic representation of the skeleton part of sealed member shown in Figure 7.
In order further to improve the binding ability of skeleton part 22 and covered section 21, can also offer diversion gap 2212 at least one in the two in the end of the internal ring portion of ring flat-plate shape skeleton 221 and first cylindrical skeleton 222.The setting of diversion gap 2212 can make polyurethane flow along diversion gap 2212, thereby skeleton part 22 is embedded in the covered section 21, has not only improved the combination force between skeleton part 22 and the covered section 21, and has made things convenient for the processing of hermetic unit 2; Simultaneously, other positions of the internal ring portion of ring flat-plate shape skeleton 221 can also be provided with first dunnage 2211, and like this, in the injection moulding process, first dunnage 2211 just can contact with core, has guaranteed the coaxality of sealed member 2.Correspondingly, first cylindrical skeleton 222 also can be provided with second dunnage, 2221, the second dunnages 2221 and can contact with the diapire of mould, has further facilitated the injection moulding processing of sealed member 2.
Particularly, as shown in Figure 9, first cylindrical skeleton 222 can be by forming skeleton part 22 along curve A bending 90 degree, second cylindrical skeleton 223 can pass through skeleton part 22 is formed along curve B bending 90 degree, and first cylindrical skeleton 222 is opposite with the overbending direction of second cylindrical skeleton 223; Certainly, second cylindrical skeleton 223 can be processed as required, is not that all skeleton parts 22 all have second cylindrical skeleton 223.
Like this, when the internal ring portion of ring flat-plate shape skeleton 223 has diversion gap 2212, in the process that is bent to form second cylindrical skeleton 223, also just formed diversion gap 2212 on second cylindrical skeleton 223 naturally.Certainly, the diversion gap 2212 on second cylindrical skeleton 223 also can process by other modes.
Please refer to Figure 10 to Figure 12, Figure 10 looks schematic representation for the skeleton master partly of the sealed member that the another kind of embodiment of the present invention is provided; Figure 11 is the schematic top plan view of the skeleton part of sealed member shown in Figure 10; Figure 12 is the expansion schematic representation of the skeleton part of sealed member shown in Figure 10.
In order further to improve the binding ability of skeleton part 22 and covered section 21, can also on first cylindrical skeleton 222 and ring flat-plate shape skeleton 221, offer a plurality of through holes 2213.Like this, in the injection moulding process, polyurethane material just can circulate along through hole 2213, and moulding in through hole 2213, and skeleton part 22 and covered section 21 are combined as a whole.
Through hole 2213 can make skeleton part 22 basic identical with the combination force at covered section 21 each position respectively along the circumferentially evenly setting of the ring flat-plate shape skeleton 221 or first cylindrical skeleton 222.Through hole 2213 can be processed into different shape as required, is not limited to the circle shown in the figure.
Certainly, as shown in figure 12, first cylindrical skeleton 222 also can be by forming skeleton part 22 along curve A bending 90 degree, second cylindrical skeleton 223 also can form by skeleton part 22 is spent along curve B bending 90, and first cylindrical skeleton 222 is opposite with the overbending direction of second cylindrical skeleton 223; Particularly, second cylindrical skeleton 223 can be processed as required, is not that all skeleton parts 22 all have second cylindrical skeleton 223.
Please refer to Figure 13, the structural representation of the piston body that Figure 13 is provided for a kind of embodiment of the present invention.
In a kind of embodiment, sealed member 23 and back sealed member 24 before the sealed member 2 of piston body provided by the present invention can comprise, preceding sealed member 23 is arranged at the front end of main part, back sealed member 24 is arranged at the rearward end of main part, the front-end face of back sealed member 24 is towards the rear end of piston body, and preceding sealed member 23 is provided with the 24 relative applyings of back sealed member.The front-end face of above-mentioned sealed member 2 is the end face that sealed member 2 has seal lip.
Like this, on the one hand, formed a sealed chamber between the seal lip of the seal lip of preceding sealed member 23 and back sealed member 24 and the casing wall of piston cylinder, guaranteed that lubricant oil remains in the sealed chamber for a long time, sealed member 2 is lubricated, reduce friction and give birth to heat, reduce the rate of wear of sealed member 2, prolong the working life of sealed member 2; Simultaneously, also reduce the number of part, and then reduced the complexity and the manufacturing cost of piston body manufacturing process, reduced the complexity of installation process; On the other hand, because preceding sealed member 23 and back sealed member 24 have symmetrical structure substantially, under normal assembling situation, the seal lip of preceding sealed member 23 mainly plays sealing and pressure transmission effect, be subjected to bigger frictional force, then the seal lip of sealed member 24 is positioned at the rear end of piston body, the main dustproof effect that rises, the active force that is subjected to is less, it is lighter to wear and tear, therefore, and when the seal lip sealability of current sealed member 23 descends, the seal lip of back sealed member 24 still has the better seal performance, at this moment, just preceding sealed member 23 and back sealed member 24 can be changed, bear the effect of sealing and pressure transmission by the seal lip of back sealed member 24, further prolong the working life of piston body, improved the Economy in the using process of piston body.
For the satisfied connection that has the preceding sealed member 23 or the back sealed member 24 of different-thickness in the axial direction, piston body after guaranteeing to connect is very close to each other it is axial, thereby guarantee the reliability of piston body work, can also between preceding sealed member 23 or back sealed member 24, be provided with and regulate parts 3, with the thickness of sealed member before regulating 23, enlarge the Applicable scope of piston body with back sealed member 24.
Particularly, regulate parts 3 and can have platy structure, such as: steel plate.The stability of material of steel plate is good, and cost is lower, is satisfying on the basis of functional requirement, has reduced the user cost of piston body.
Certainly, regulate parts 3 and can also have other shapes, perhaps use other materials to make, all be fine as long as can satisfy functional requirement.
Except above-mentioned piston body, the present invention also provides a kind of concrete pumping equipment that comprises above-mentioned piston body, and the structure of these other each several parts of concrete pumping equipment please refer to prior art, and this paper repeats no more.
More than concrete pumping equipment provided by the present invention and piston body thereof are described in detail.Used specific case herein principle of the present invention and mode of execution are set forth, above embodiment's explanation just is used for helping to understand method of the present invention and core concept thereof.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of claim of the present invention.
Claims (13)
1. piston body, be used for concrete pumping equipment, comprise the main part that is connected with the piston rod of described concrete pumping equipment, with around described main part and be arranged at the sealed member (2) of the end of described main part removably, described sealed member (2) comprises skeleton part (22) and covered section (21), it is characterized in that described skeleton part (22) embeds the inside of described covered section (21).
2. piston body according to claim 1, it is characterized in that, described skeleton part (22) comprises first cylindrical skeleton (222) and ring flat-plate shape skeleton (221), the axis of described first cylindrical skeleton (222) overlaps substantially with the axis of described piston body, and described ring flat-plate shape skeleton (221) is fixed in the madial wall of described first cylindrical skeleton (222) with its outer rim.
3. piston body according to claim 2 is characterized in that, described ring flat-plate shape skeleton (221) is fixed in the front end of described first cylindrical skeleton (222) with its outer rim.
4. piston body according to claim 2 is characterized in that, described ring flat-plate shape skeleton (221) is fixed in the rear end of described first cylindrical skeleton (222) with its outer rim.
5. piston body according to claim 4 is characterized in that, the front end of described first cylindrical skeleton (222) is provided with by the flared section (224) of its rear end to its front end flaring.
6. piston body according to claim 4, it is characterized in that, also comprise second cylindrical skeleton (223), the axis of described second cylindrical skeleton (223) overlaps substantially with the axis of described piston body, the fixedly connected described ring flat-plate shape skeleton of the outer side wall of described second cylindrical skeleton (223) (221).
7. piston body according to claim 6 is characterized in that, described second cylindrical skeleton (223) offers diversion gap (2212).
8. according to each described piston body of claim 2 to 7, it is characterized in that at least one offers diversion gap (2212) in the two in the end of the internal ring portion of described ring flat-plate shape skeleton (221) and described first cylindrical skeleton (222).
9. according to each described piston body of claim 2 to 7, it is characterized in that at least one offers a plurality of through holes (2223) in the two for described ring flat-plate shape skeleton (221) and described first cylindrical skeleton (222).
10. according to each described piston body of claim 1 to 7, it is characterized in that, described sealed member (2) comprises the preceding sealed member (23) of the front end that is arranged at described main part and is arranged at the back sealed member (24) of the rearward end of described main part, the front-end face of described back sealed member (24) is towards the rear end of described piston body, and sealed member (23) is fitted and connected with described back sealed member (24) before described.
11. piston body according to claim 10 is characterized in that, described preceding sealed member (23) is fitted and connected by regulating parts (3) with described back sealed member (24).
12. piston body according to claim 11 is characterized in that, described adjusting parts (3) are steel plate.
13. a concrete pumping equipment is characterized in that, comprises as each described piston body of claim 1 to 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910207245A CN101691861A (en) | 2009-10-22 | 2009-10-22 | Concrete pumping equipment and piston body thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910207245A CN101691861A (en) | 2009-10-22 | 2009-10-22 | Concrete pumping equipment and piston body thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101691861A true CN101691861A (en) | 2010-04-07 |
Family
ID=42080570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910207245A Pending CN101691861A (en) | 2009-10-22 | 2009-10-22 | Concrete pumping equipment and piston body thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101691861A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102777376A (en) * | 2012-08-07 | 2012-11-14 | 江苏润洲塑胶有限公司 | Novel concrete pump piston sealing piece for concrete pump |
| CN102966530A (en) * | 2012-11-28 | 2013-03-13 | 中联重科股份有限公司 | Split-type piston seal body, split-type piston, piston cylinder and concrete pumping equipment |
| CN104197002A (en) * | 2014-08-19 | 2014-12-10 | 青岛开世密封工业有限公司 | High-pressure concrete piston sealing piece |
| CN115539374A (en) * | 2022-11-29 | 2022-12-30 | 合肥精创科技有限公司 | High-performance polyurethane piston and preparation method and device thereof |
-
2009
- 2009-10-22 CN CN200910207245A patent/CN101691861A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102777376A (en) * | 2012-08-07 | 2012-11-14 | 江苏润洲塑胶有限公司 | Novel concrete pump piston sealing piece for concrete pump |
| CN102966530A (en) * | 2012-11-28 | 2013-03-13 | 中联重科股份有限公司 | Split-type piston seal body, split-type piston, piston cylinder and concrete pumping equipment |
| CN104197002A (en) * | 2014-08-19 | 2014-12-10 | 青岛开世密封工业有限公司 | High-pressure concrete piston sealing piece |
| CN115539374A (en) * | 2022-11-29 | 2022-12-30 | 合肥精创科技有限公司 | High-performance polyurethane piston and preparation method and device thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101691861A (en) | Concrete pumping equipment and piston body thereof | |
| CN101608616B (en) | Concrete pumping equipment and piston body thereof | |
| CN101660521B (en) | Concrete pumping equipment and piston body thereof | |
| CN101776101B (en) | Self cooling and lubrication type frequently reciprocating hydraulic cylinder | |
| CN104131852B (en) | A kind of column formula hydraulic tappet and its plunger preparation method | |
| CN202349007U (en) | Zigzag spring coupler with seal positioning structure | |
| CN201517499U (en) | Concrete pumping equipment and piston body thereof | |
| CN201428586Y (en) | Concrete pumping device and piton body thereof | |
| CN202028418U (en) | Combined jaw plate | |
| CN202441590U (en) | High-pressure gear pump | |
| CN102312821A (en) | Shock and deformation resistant assembly structure of pump connection base and balance wheel base | |
| CN202441583U (en) | Piston sealing body, concrete pumping piston and concrete pump truck | |
| CN202441506U (en) | Box cover of gasoline machine | |
| CN201625553U (en) | Novel hydraulic breaking hammer for engineering truck | |
| CN205519426U (en) | Pneumatic hammer | |
| CN101457751B (en) | Hollow plunger assembly for plunger pump | |
| CN110252903A (en) | A kind of piston ring processing unit (plant) | |
| CN202182000U (en) | Concrete pumping equipment and piston thereof | |
| CN105834718A (en) | Jump ring installation tool | |
| CN213511477U (en) | Support sleeve structure | |
| CN102000819A (en) | Combined upper punch for control panel powder metallurgy forming die | |
| CN210152844U (en) | Slurry pump valve box for kaolin | |
| CN2926583Y (en) | Self-sealing hydraulic piston master | |
| CN201671812U (en) | Screw rod with uniform wall thickness rubber lining pasted on a rotor | |
| CN201082389Y (en) | Small ripple lining board for ball mill |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20100407 |