CN114352516A - Piston sealing ring, piston and concrete pumping device - Google Patents
Piston sealing ring, piston and concrete pumping device Download PDFInfo
- Publication number
- CN114352516A CN114352516A CN202111473780.8A CN202111473780A CN114352516A CN 114352516 A CN114352516 A CN 114352516A CN 202111473780 A CN202111473780 A CN 202111473780A CN 114352516 A CN114352516 A CN 114352516A
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- piston
- ring
- sealing ring
- conductive
- seal ring
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- 238000007789 sealing Methods 0.000 title claims abstract description 56
- 238000005086 pumping Methods 0.000 title claims abstract description 26
- 230000002093 peripheral effect Effects 0.000 claims abstract description 26
- 238000005299 abrasion Methods 0.000 claims abstract description 10
- 239000002184 metal Substances 0.000 claims description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 230000002159 abnormal effect Effects 0.000 abstract description 5
- 238000010030 laminating Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 230000001960 triggered effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention belongs to the technical field of engineering machinery, and particularly relates to a piston sealing ring, a piston and a concrete pumping device. The piston sealing ring comprises a sealing ring body, a conducting ring and a power supply part. The conducting ring and the sealing ring body are coaxially embedded into the sealing ring body and form a reserved abrasion ring layer with the peripheral wall of the sealing ring body. The power supply part is embedded in the sealing ring body and connected with the conducting ring. This piston sealing ring can be applied to on being used for the piston of pump sending concrete, and the piston sealing ring can trigger the warning before being about to become invalid to remind in time to change the piston sealing ring, thereby reduce and spill the risk that leads to the cylinder to take place abnormal wear because of the concrete, also reduce the man-hour that detects the piston leakproofness simultaneously, reduce the manual strength.
Description
Technical Field
The invention belongs to the technical field of engineering machinery, and particularly relates to a piston sealing ring, a piston and a concrete pumping device.
Background
The piston seal body of concrete piston belongs to vulnerable part, the periphery wall of piston seal body and the interior perisporium laminating of the cylinder that is used for the pump sending concrete are in order to seal, therefore, at the operation in-process, there is wearing and tearing between piston seal body and the cylinder, increase along with accumulative total operating time, the sealed periphery wall of piston seal body wears out gradually, wearing and tearing will't guarantee sealing performance after the certain degree, the wearing and tearing department that leads to the concrete in the cylinder to pass through the periphery wall of piston seal body leaks, the concrete clamp is established between the periphery wall of piston seal body and the interior perisporium of cylinder, accelerate the interior perisporium wearing and tearing of cylinder, lead to the cylinder inefficacy, the unable behavior of equipment even. In addition, the wear rate of the piston sealing body changes due to different working conditions (such as pumping pressure, concrete conditions and the like), so that an equipment operator must frequently stop to check, and the working hours for checking whether the piston sealing body is failed are increased.
Disclosure of Invention
Aiming at the defects or shortcomings in the prior art, the invention provides a piston sealing ring, a piston and a concrete pumping device, wherein the piston sealing ring can be applied to the piston of the concrete pumping device, and in the piston, an alarm can be triggered before the piston sealing ring is about to fail in sealing, so that the abnormal abrasion condition caused by the failure of the piston sealing ring is avoided, and the working hour for checking whether the piston sealing ring fails is also reduced.
To achieve the above object, a first aspect of the present invention provides a piston seal ring, including:
a seal ring body;
the conducting ring is coaxially embedded into the sealing ring body with the sealing ring body and forms a reserved abrasion ring layer with the outer peripheral wall of the sealing ring body; and
and the power supply part is embedded in the sealing ring body and is connected with the conducting ring.
Optionally, the piston seal ring further comprises a conductive wire embedded within the seal ring body, the conductive wire comprising:
a first conductive line connected between the power supply member and the conductive ring; and
and the second conducting wire extends from the power supply part towards the direction far away from the conducting ring and extends out of the sealing ring body.
Optionally, the sealing ring body includes the flaring tip that the bore increases progressively along the axial direction outwards, and the conducting ring is embedded in the flaring tip, and the periphery wall of conducting ring is parallel arrangement with the periphery wall of flaring tip.
Optionally, the conductive ring comprises a metal ring or a conductive rubber ring.
Optionally, the metal loop is made of metal cord with a diameter of 0.1mm to 5 mm.
Optionally, the supply voltage of the power supply part is 24V or less.
In a second aspect, the invention provides a piston for a concrete pumping device, which comprises the piston sealing ring.
Optionally, the piston is mounted within a cylinder for pumping concrete and further comprises:
the connecting flange assembly is coaxially arranged with the cylinder barrel and is internally provided with a transmitter mounting cavity;
the signal transmitter is arranged in the transmitter mounting cavity and is connected with the power supply part; and
the conductive connecting piece is arranged at the axial outer end of the connecting flange component and is connected between the inner peripheral wall of the cylinder barrel and the signal transmitter;
wherein, the piston seal ring sets up at the axial inner of flange subassembly and sets up with the cylinder is coaxial, reserves the internal perisporium of wearing and tearing periphery wall laminating cylinder on ring layer, after reserving wearing and tearing ring layer wearing and tearing, the internal perisporium of cylinder can be laminated to the periphery wall of conducting ring.
Optionally, the thickness of the reserved wear ring layer is 1mm to 8mm in a state that the outer peripheral wall of the reserved wear ring layer is attached to the inner peripheral wall of the cylinder barrel.
Optionally, the outer diameter of the conductive ring is larger than the inner diameter of the cylinder barrel.
Optionally, the outer diameter of the conductive ring exceeds the inner diameter of the cylinder barrel by 0.5 mm-2 mm.
Optionally, the conductive connection comprises a carbon brush.
In a third aspect, the invention provides a concrete pumping device which comprises the piston.
Optionally, the concrete pumping device further comprises a wireless receiver in wireless communication connection with the signal transmitter.
The piston sealing ring can be applied to a piston of a concrete pumping device, after a reserved abrasion ring layer on the piston sealing ring is abraded, the outer peripheral wall of the conducting ring can be attached to the inner peripheral wall of the cylinder barrel, the piston sealing ring is not sealed to fail, at the moment, a power supply part, the conducting ring, the cylinder barrel, the conducting connecting piece and the signal transmitter form a loop, and the signal transmitter works in an electrified mode and sends signals to external alarm equipment. In other words, piston seal ring can make signal transmitter work of getting electricity before being about to lose efficacy to trigger the warning, thereby remind in time to change piston seal ring, thereby reduce and spill the risk that leads to the cylinder to take place abnormal wear because of the concrete, also reduce the man-hour that detects piston leakproofness simultaneously, reduce the manual strength.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a cross-sectional view of a piston seal ring provided in accordance with an embodiment of the present invention;
FIG. 2 is a schematic view of a piston seal ring provided in accordance with an embodiment of the present invention from a perspective;
FIG. 3 is an enlarged view of a portion of the piston seal ring of FIG. 1;
FIG. 4 is a partial cross-sectional view of another piston seal ring provided in accordance with an embodiment of the present invention;
FIG. 5 is a cross-sectional view of a piston provided in accordance with an embodiment of the present invention;
fig. 6 is a partially enlarged view of the piston of fig. 3.
Description of reference numerals: 10. a piston seal ring; 11. a seal ring body; 111. reserving a wear ring layer; 112. a flared end; 12. conducting rings; 13. a power supply member; 14. a first conductive line; 15. a second conductive line; 151. a wire terminal; 20. a cylinder barrel; 30. a connecting flange assembly; 31. an emitter mounting cavity; 32. a guide ring; 40. a signal transmitter; 50. a conductive connection member; 60. a wireless receiver; 70. a piston rod; 80. connecting the clamping sleeve; 90. pressing plate
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating embodiments of the invention, are given by way of illustration and explanation only, not limitation.
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In embodiments of the invention, where the context requires otherwise, the use of directional terms such as "upper, lower, top and bottom" is generally intended in the orientation shown in the drawings or the positional relationship of the various components in a vertical, vertical or gravitational orientation.
The invention will be described in detail below with reference to exemplary embodiments and with reference to the accompanying drawings.
FIG. 1 is a cross-sectional view of a piston seal ring provided in accordance with an embodiment of the present invention. FIG. 2 is a schematic view of a piston seal ring provided in accordance with an embodiment of the present invention from a perspective. Fig. 3 is a partially enlarged view of the piston seal ring of fig. 1. As shown in fig. 1 to 3, an exemplary embodiment of the present invention provides a piston seal ring 10, and the piston seal ring 10 includes a seal ring body 11, a conductive ring 12, and a power supply part 13. The conductive ring 12 is embedded in the seal ring body 11 coaxially with the seal ring body 11 and forms a reserved wear ring layer 111 with the outer circumferential wall of the seal ring body 11. The power supply member 13 is embedded in the seal ring body 11 and connected to the conductive ring 12.
The piston seal ring 10 can be applied to a piston of a concrete pumping device. In the piston, the alarm can be triggered immediately before the sealing failure of the piston sealing ring 10, the abnormal abrasion caused by the sealing failure of the piston sealing ring 10 is avoided, and meanwhile, the working hour for detecting whether the piston sealing ring 10 fails is also reduced.
Fig. 5 is a cross-sectional view of a piston provided in accordance with an embodiment of the present invention. Fig. 6 is a partially enlarged view of the piston of fig. 5. As shown in fig. 5 and 6, which will be described in detail below with reference to the accompanying drawings.
In an embodiment of the present invention, the piston is mounted within a cylinder 20 for pumping concrete and includes a connection flange assembly 30, a signal emitter 40, and a conductive connection 50. The connecting flange assembly 30 is coaxially disposed with the cylinder 20 and is provided with a transmitter mounting cavity 31 therein. The signal transmitter 40 is disposed in the transmitter installation cavity 31 and connected to the power supply part 13. The conductive connector 50 is disposed at an axially outer end of the connection flange assembly 30 and connected between an inner circumferential wall of the cylinder tube 20 and the signal emitter 40.
Wherein, piston seal ring 10 sets up at the axial inner end of flange subassembly 30 and sets up with the cylinder 20 is coaxial, reserves the interior perisporium of wearing and tearing ring layer 111 laminating cylinder 20, and after reserving wearing and tearing ring layer 111 wearing and tearing, the interior perisporium of cylinder 20 can be laminated to the periphery wall of conducting ring 12.
As shown in fig. 5, in the illustrated embodiment, the piston rod 70 of the power source is connected to the piston by a coupling sleeve 80, and the piston rod 70 is linearly reciprocated to drive the piston to linearly reciprocate in the cylinder 20, thereby pumping the concrete into or out of the cylinder 20.
Specifically, the connecting flange assembly 30 is provided with a transmitter mounting cavity 31 for mounting the signal transmitter 40 therein and includes a guide ring 32 disposed on the outer peripheral wall, and the guide ring 32 plays a role of supporting and guiding, so that the connecting flange assembly 30 is disposed coaxially with the cylinder tube 20. The axially outer end of the connecting flange assembly 30 is connected to the piston rod 70 and is provided with a conductive connecting member 50, and the conductive connecting member 50 is connected between the inner circumferential wall of the cylinder 20 and the signal transmitter 40. The piston seal ring 10 is fixedly installed at the axially inner end of the connection flange assembly 30 by the pressing plate 90 such that the piston seal ring 10 is coaxial with the cylinder tube 20. Piston seal ring 10 and 20 interference fit of cylinder, the internal perisporium of the periphery wall laminating cylinder 20 of wearing and tearing annular layer 111 is reserved, and the piston is at linear reciprocating motion's in-process, and the sliding friction takes place for the periphery wall of reserving wearing and tearing annular layer 111 and the internal perisporium of cylinder 20, and reserve wearing and tearing annular layer 111 because of long-term work wearing and tearing back can expose partial conducting ring 12 at least, and conducting ring 12 exposes partial internal perisporium can laminate cylinder 20's external perisporium. Because the cylinder 20 is generally made of a metal material with conductive performance, the power supply part 13, the conductive ring 12, the cylinder 20, the conductive connecting piece 50 and the signal transmitter 40 form a loop, the signal transmitter 40 is powered on to work and sends a signal to external alarm equipment, and a worker can replace the piston sealing ring 10 in time after finding an alarm.
It should be noted that, after the wear ring layer 111 is worn, since the outer circumferential wall of the conductive ring 12 can fit the inner circumferential wall of the cylinder 20, the piston seal ring 10 has not yet failed to be sealed, and at this time, the concrete on the axial inner end side of the connecting flange assembly 30 does not leak to the axial outer end side of the connecting flange assembly 30. Therefore, in the piston of the invention, the piston sealing ring 10 can enable the signal emitter 40 to work by electrifying before failing so as to trigger an alarm to remind the piston sealing ring 10 to be replaced in time, thereby reducing the risk of abnormal abrasion of the cylinder barrel caused by concrete leakage, reducing the working hour for detecting the sealing performance of the piston and reducing the labor intensity.
In addition, it should be noted that the piston sealing ring 10 of the present invention can be applied to different kinds of pistons for pumping different media, such as water, fluid mixture, etc., in other words, the piston sealing ring 10 of the present invention is not limited to be applied to the piston of a concrete pumping device.
It will be appreciated that the conductive connection 50 is a sliding contact since the piston reciprocates linearly within the cylinder 20 and the conductive connection 50 is thus in sliding connection with the inner peripheral wall of the cylinder 20. In the embodiment of the present invention, it is preferable that the conductive connector 50 includes a carbon brush.
In an embodiment of the present invention, the piston seal ring 10 further includes a conductive wire embedded in the seal ring body 11, the conductive wire including a first conductive wire 14 and a second conductive wire 15. The first conductive line 14 is connected between the power supply part 13 and the conductive ring 12. The second conductive line 15 extends from the power supply part 13 in a direction away from the conductive ring 12 and extends out of the sealing ring body 11.
Specifically, conductive wires are embedded in the seal ring body 11 to connect the power supply part 13 to the conductive ring 12 and an external part, respectively. As shown in fig. 3, in the illustrated embodiment, the power supply part 13 is a battery implanted in the sealing ring body 11, and the first conductive wire 14 is connected between the positive electrode of the battery and the conductive ring 12; one end of the second conductive wire 15 is connected to the negative electrode of the battery, and the other end is provided with a wire terminal 151 and extends out of the sealing ring body 11. It is understood that the wire terminal 151 can further facilitate connection of external parts, and of course, it is only necessary to ensure that one end of the second conductive wire 15 protrudes outside the seal ring body 11 to connect external parts. As shown in fig. 6, in the illustrated embodiment, the transmitter mounting cavity 31 is disposed opposite to the power supply part 13, and one end of the second conductive wire 15 extends into the transmitter mounting cavity 31 to be connected to the signal transmitter 40.
In order to ensure safety and prevent electric shock, in the embodiment of the present invention, the power supply voltage of the power supply member 13 is 24V or less. In the present embodiment, the power supply member 13 is preferably a battery.
In the embodiment of the present invention, the seal ring body 11 includes a flared end portion 112 with an increasing caliber along an axially outward direction, the conductive ring 12 is embedded in the flared end portion 112, and an outer peripheral wall of the conductive ring 12 is parallel to an outer peripheral wall of the flared end portion 112.
As shown in fig. 1 and 3, one end of the seal ring body 11 is flared, i.e., a flared end 112. The conductive ring 12 is also flared and the outer peripheral wall of the flared end 112 form a pre-worn annular layer 111. The outer peripheral wall of the conductive ring 12 and the outer peripheral wall of the flared end 112 are arranged in parallel, so that the thickness of the reserved wear ring layer 111 is uniform, and premature exposure of the conductive ring 12 caused by abrasion of the reserved wear ring layer 111 with uneven thickness is avoided.
As shown in fig. 6, the piston and the cylinder 20 are in interference fit, so the flared end 112 with a larger diameter is in a compressed state, and the outer peripheral wall of the reserved wear ring layer 111 is attached to the inner peripheral wall of the cylinder 20, at this time, the thickness of the reserved wear ring layer 111 is one of the important factors determining the service life of the piston seal ring 10. In the embodiment of the present invention, the thickness of the reserved wear ring layer 111 is 1mm to 8mm in a state where the outer circumferential wall of the reserved wear ring layer 111 is attached to the inner circumferential wall of the cylinder tube 20. It should be noted that the piston seal rings 10 with different specifications may adopt the reserved wear ring layers 111 with different thicknesses to be suitable for pistons in different operating environments, so as to ensure that the service life of the piston seal ring 10 is suitable.
It can be understood that after the wear-resistant ring layer 111 is worn, it is also required to ensure that the piston sealing ring 10 can effectively seal. In an embodiment of the invention, the outer diameter of the conductive ring 12 is larger than the inner diameter of the cylinder 20.
Specifically, as shown in FIG. 6, after the flared end 112 is compressed, the conductive ring 12 is correspondingly compressed. As the reserved wear ring layer 111 is slowly worn, the caliber of the conductive ring 12 increases progressively, and since the outer diameter of the conductive ring 12 is larger than the inner diameter of the cylinder 20, the outer circumferential wall of the conductive ring 12 is finally attached to the inner circumferential wall of the cylinder 20. So set up for reserve wearing and tearing ring layer 111 still can guarantee the sealing performance of piston after being worn and torn, also can make signal transmitter 40 get electric work simultaneously. In other words, an alarm can be triggered before the piston seal fails to remind the operator of the timely replacement. In the embodiment of the present invention, it is preferable that the outer diameter of the conductive ring 12 exceeds the inner diameter of the cylinder by 0.5mm to 2 mm.
In an embodiment of the present invention, the conductive ring 12 comprises a metal ring or a conductive rubber ring. In the case that the conductive ring 12 is a conductive rubber ring, after the reserved wear ring layer 111 is worn compared to a metal ring, obviously, the outer peripheral wall of the conductive rubber ring can form better sealing contact with the inner peripheral wall of the cylinder 20, and the sealing effect is ensured. Of course, in the case of using a metal ring as the conductive ring 12, the wear resistance is better. In the case that the conductive loop 12 is a metal loop, as shown in fig. 4, the metal loop is preferably made of a metal rope having a diameter of 0.1mm to 5 mm.
The embodiment of the present invention further provides a concrete pumping device, which includes the above-mentioned piston applied to the concrete pumping device, and obviously, the concrete pumping device has all the beneficial effects brought by the above-mentioned piston, and detailed description thereof is omitted here.
Of course, it will be understood that the concrete pumping device may also include other components interacting with or independent of the piston, including, for example, a cylinder for driving the piston to move, an oil circuit system for controlling the operation of the cylinder, an alarm device, etc.
In an embodiment of the present invention, the concrete pumping device further comprises a wireless receiver 60 connected in wireless communication with the signal transmitter 40. In other words, the signal transmitter 40 located inside the piston can communicate with the external wireless receiver 60 wirelessly, and the wireless receiver 60 can trigger corresponding alarm operation after receiving the signal transmitted by the signal transmitter 40, for example, trigger an alarm of an audible and visual alarm device.
Those skilled in the art will understand that the signal transmitter 40 refers to a device capable of transmitting radio frequency signals, and accordingly, the wireless receiver 60 is capable of receiving radio frequency signals transmitted by the signal transmitter 40, which will not be described in detail herein.
Although the embodiments of the present invention have been described in detail with reference to the accompanying drawings, the embodiments of the present invention are not limited to the details of the above embodiments, and various simple modifications can be made to the technical solutions of the embodiments of the present invention within the technical idea of the embodiments of the present invention, and the simple modifications all belong to the protection scope of the embodiments of the present invention.
Although the embodiments of the present invention have been described in detail with reference to the accompanying drawings, the embodiments of the present invention are not limited to the details of the above embodiments, and various simple modifications can be made to the technical solutions of the embodiments of the present invention within the technical idea of the embodiments of the present invention, and the simple modifications all belong to the protection scope of the embodiments of the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
It should be noted that, in the foregoing embodiments, various features described in the foregoing embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations are not described in further detail in the embodiments of the present invention.
In addition, any combination of various different implementation manners of the embodiments of the present invention is also possible, and the embodiments of the present invention should be considered as disclosed in the embodiments of the present invention as long as the combination does not depart from the spirit of the embodiments of the present invention.
Claims (14)
1. Piston seal ring, characterized in that the piston seal ring (10) comprises:
a seal ring body (11);
the conducting ring (12) is embedded in the sealing ring body (11) coaxially with the sealing ring body (11) and forms a reserved abrasion ring layer (111) with the outer peripheral wall of the sealing ring body (11); and
and a power supply part (13) embedded in the sealing ring body (11) and connected with the conductive ring (12).
2. The piston seal ring according to claim 1, characterized in that the piston seal ring (10) further comprises an electrically conductive wire embedded within the seal ring body (11), the electrically conductive wire comprising:
a first conductive line (14) connected between the power supply member (13) and the conductive ring (12); and
and a second conductive wire (15) extending from the power supply part (13) in a direction away from the conductive ring (12) and protruding out of the seal ring body (11).
3. The piston seal ring according to claim 1, characterized in that the seal ring body (11) comprises a flared end portion (112) with a diameter increasing in an axially outward direction, the conductive ring (12) is embedded in the flared end portion (112), and an outer circumferential wall of the conductive ring (12) is parallel to an outer circumferential wall of the flared end portion (112).
4. Piston seal ring according to claim 1, characterized in that the electrically conductive ring (12) comprises a metal ring or an electrically conductive rubber ring.
5. The piston seal ring of claim 4 wherein said metal ring is made of metal rope having a diameter of 0.1mm to 5 mm.
6. Piston according to claim 1, characterized in that the supply voltage of said supply member (13) is equal to or less than 24V.
7. A piston for a concrete pumping unit, characterized in that the piston comprises a piston sealing ring according to any one of claims 1 to 6.
8. Piston according to claim 7, characterized in that it is mounted in a cylinder (20) for pumping concrete and further comprises:
the connecting flange assembly (30) is coaxially arranged with the cylinder barrel (20) and is internally provided with an emitter mounting cavity (31);
the signal transmitter (40) is arranged in the transmitter installation cavity (31) and is connected with the power supply part (13); and
the conductive connecting piece (50) is arranged at the axial outer end of the connecting flange component (30) and is connected between the inner peripheral wall of the cylinder barrel (20) and the signal transmitter (40);
the piston sealing ring (10) is arranged at the axial inner end of the connecting flange assembly (30) and is coaxially arranged with the cylinder barrel (20), the peripheral wall of the reserved abrasion ring layer (111) is attached to the inner peripheral wall of the cylinder barrel (20), and after the reserved abrasion ring layer (111) is abraded, the peripheral wall of the conducting ring (12) can be attached to the inner peripheral wall of the cylinder barrel (20).
9. The piston according to claim 8, characterized in that the thickness of the reserved wear ring layer (111) is 1mm to 8mm in a state where the outer peripheral wall of the reserved wear ring layer (111) is attached to the inner peripheral wall of the cylinder tube (20).
10. Piston according to claim 8, characterized in that the outer diameter of the conducting ring (12) is larger than the inner diameter of the cylinder barrel (20).
11. Piston according to claim 10, characterized in that the outer diameter of the conducting ring (12) exceeds the inner diameter of the cylinder barrel (20) by 0.5mm to 2 mm.
12. The piston of claim 8 wherein said conductive connection (50) comprises a carbon brush.
13. Concrete pumping unit, characterized in that it comprises a piston according to any one of claims 7 to 12.
14. Concrete pumping unit according to claim 13, further comprising a wireless receiver (60) in wireless communication connection with the signal transmitter (40).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111473780.8A CN114352516B (en) | 2021-12-02 | 2021-12-02 | Piston and concrete pumping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111473780.8A CN114352516B (en) | 2021-12-02 | 2021-12-02 | Piston and concrete pumping device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114352516A true CN114352516A (en) | 2022-04-15 |
| CN114352516B CN114352516B (en) | 2023-03-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111473780.8A Active CN114352516B (en) | 2021-12-02 | 2021-12-02 | Piston and concrete pumping device |
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| Country | Link |
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| CN (1) | CN114352516B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1600465A (en) * | 1977-09-22 | 1981-10-14 | Thomsen Equipment Co | Pumping apparatus for moist granular building material |
| CN103410722A (en) * | 2013-08-12 | 2013-11-27 | 三一汽车制造有限公司 | Concrete piston, pumping system and concrete pump |
| US20170372595A1 (en) * | 2016-06-23 | 2017-12-28 | Applied Nano Technology Science, Inc. | Alarm Device for Feedthrough Assembly and Alarm Method Thereof |
| CN211692789U (en) * | 2019-12-26 | 2020-10-16 | 北汽福田汽车股份有限公司 | Concrete piston and concrete conveying device |
| CN113653802A (en) * | 2021-08-17 | 2021-11-16 | 中铁工程装备集团有限公司 | Sealing ring capable of monitoring sealing abrasion loss on line and shield machine |
-
2021
- 2021-12-02 CN CN202111473780.8A patent/CN114352516B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1600465A (en) * | 1977-09-22 | 1981-10-14 | Thomsen Equipment Co | Pumping apparatus for moist granular building material |
| CN103410722A (en) * | 2013-08-12 | 2013-11-27 | 三一汽车制造有限公司 | Concrete piston, pumping system and concrete pump |
| US20170372595A1 (en) * | 2016-06-23 | 2017-12-28 | Applied Nano Technology Science, Inc. | Alarm Device for Feedthrough Assembly and Alarm Method Thereof |
| CN211692789U (en) * | 2019-12-26 | 2020-10-16 | 北汽福田汽车股份有限公司 | Concrete piston and concrete conveying device |
| CN113653802A (en) * | 2021-08-17 | 2021-11-16 | 中铁工程装备集团有限公司 | Sealing ring capable of monitoring sealing abrasion loss on line and shield machine |
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| Publication number | Publication date |
|---|---|
| CN114352516B (en) | 2023-03-31 |
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Application publication date: 20220415 Assignee: ZOOMLION HEAVY INDUSTRY SCIENCE&TECHNOLOGY Co.,Ltd. Assignor: ZOOMLION HEAVY INDUSTRY SCIENCE&TECHNOLOGY Co.,Ltd. Contract record no.: X2023980042686 Denomination of invention: Piston and concrete pumping device Granted publication date: 20230331 License type: Common License Record date: 20231010 |