CN211070523U - Polyurea device for continuously and rotatably spraying outer surface of flexible inhaul cable of bridge - Google Patents
Polyurea device for continuously and rotatably spraying outer surface of flexible inhaul cable of bridge Download PDFInfo
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- CN211070523U CN211070523U CN201920908681.XU CN201920908681U CN211070523U CN 211070523 U CN211070523 U CN 211070523U CN 201920908681 U CN201920908681 U CN 201920908681U CN 211070523 U CN211070523 U CN 211070523U
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Abstract
The utility model discloses a surface of flexible cable of bridge rotates spraying polyurea device in succession, including spray gun and feeding mechanism, its characterized in that: the feeding mechanism comprises an outer pipe and an inner rotating shaft which are coaxially arranged, and the inner rotating shaft rotates relative to the outer pipe; a channel for the stay cable to axially pass through is arranged in the center of the inner rotating shaft, a spray gun is arranged at one end of the inner rotating shaft, and the spray gun is driven by the inner rotating shaft and rotates around the stay cable; be provided with the raw materials entry on the surface of outer tube, be provided with the annular stock chest with the raw materials entry intercommunication including the pivot outer wall, the axial one end of interior pivot is provided with the raw materials export, the inboard of raw materials export through setting up including inside discharging channel of pivot and annular stock chest intercommunication, outside and spray gun fixed connection. The utility model provides a flexible cable overlength can not rotate, can only adopt the spray gun to rotate and lead to the winding problem of conveying pipeline, realizes the continuous rotatory spraying of flexible cable surface, the thickness homogeneity of maximum assurance flexible cable surface polyurea coating.
Description
Technical Field
The utility model relates to a bridge cable is anticorrosive, construction technical field, specifically is a continuous rotatory spraying polyurea device of surface of flexible cable of bridge.
Background
In the prior art, the polyurea spraying construction on the outer surface of the flexible cable mainly comprises the following 3 spraying modes:
1. the spraying of the outer surface of the cable body is realized manually in multiple angles and multiple times, and the spraying mode has the main defects that automatic spraying is not adopted, manual spraying is easy to be sucked by a human body by mistake, the manual labor amount is large, and mass production is difficult to realize; because the manual spraying is influenced by factors such as the proficiency of operators, mood changes and the like, and the rapid surface drying characteristic of the polyurea material, the consistency of the spraying quality is difficult to guarantee.
2. The short stay cable (several meters to dozens of meters) is rotatably supported, and the spray gun is fixed above the cable body and moves along the axial direction of the stay cable to achieve the purpose of rotary spraying of the stay cable. The method is only suitable for short guy cables, because the short guy cables can easily rotate and can rotate at a certain rotating speed, but the spraying method still can not spray the supporting parts of the guy cables well, secondary spraying is needed to repair the supporting parts, overlapping surfaces are easily generated, and the production efficiency and the appearance quality are affected. Meanwhile, for a long flexible inhaul cable, the flexible inhaul cable is difficult to rotate even if being dozens of meters or even hundreds of meters, the rotating speed required by the spraying process cannot be met even if the flexible inhaul cable rotates forcibly, and obviously, the rotary spraying production requirement of the long flexible inhaul cable cannot be met by the mode.
3. And a plurality of spray guns are distributed on the outer circumference of the surface of the inhaul cable at different angles to spray the outer surface. The biggest problem of the mode is that the appearance quality and uniformity of the sprayed coating at the joint are difficult to guarantee, the consistency of the flow and the air pressure of a plurality of spray guns is difficult to guarantee, the cost of the spray guns for spraying polyurea is high, the cost is high due to the adoption of a plurality of spray guns, one spray coater in a plurality of special spraying places can only supply the pressure and the flow of one spray gun, and the use of a plurality of spray coaters can also lead to the increase of the cost.
In conclusion, the spraying methods in the above examples have certain defects, and the quality of spraying polyurea on the outer surface of the long flexible inhaul cable is difficult to ensure.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned current defect, the utility model provides a continuous rotatory spraying polyurea device of surface of flexible cable of bridge has solved flexible cable overlength and can not rotate, can only adopt the spray gun rotation and lead to the winding problem of conveying pipeline, realizes the automatic spraying technology of the continuous rotatory spraying of flexible cable surface, and the thickness homogeneity of the flexible cable surface polyurea coating of furthest assurance easily realizes production automation and mass.
In order to realize the purpose of the utility model, the technical scheme of the utility model is as follows:
the outer surface continuous rotary polyurea spraying device for the bridge flexible inhaul cable comprises a spray gun, a feeding mechanism and a driving mechanism, wherein the feeding mechanism comprises an outer pipe and an inner rotating shaft which are coaxially arranged, and the inner rotating shaft is connected with the rotary driving mechanism; a channel for the stay cable to axially pass through is arranged in the center of the inner rotating shaft, and one end of the inner rotating shaft is connected with a spray gun;
wherein, the outer tube inner wall with form confined space between the inner rotary shaft outer wall be provided with the raw materials entry on the surface of outer tube be provided with on the inner rotary shaft outer wall with the annular stock chest of raw materials entry intercommunication the axial of inner rotary shaft is provided with the raw materials export, the inboard of raw materials export through set up including the inside discharging channel of rotary shaft with annular stock chest intercommunication, the outside with spray gun fixed connection.
The utility model discloses a theory of operation is: the inner rotating shaft is driven by the rotary driving mechanism and rotates relative to the outer pipe, and the spray gun is driven by the inner rotating shaft and rotates around the inhaul cable. Through set up coaxial interior pivot and outer tube on feeding mechanism, replace external pipeline with interior pivot and the inside passageway that sets up of outer tube, and adopt and set up the design that the annular stock chest corresponds the raw materials entry, get into from the raw materials entry of outer tube when the raw materials, directly get into annular stock chest, annular stock chest and raw materials exit linkage, the raw materials export is connected with the spray gun, when the internal rotation axle is rotatory, the raw materials of outer tube still can last the feed until in the spray gun, the spray gun is rotated the reality and is realized continuous rotatory feed technology around the cable by the internal rotation axle drive. The problem of flexible cable overlength can not rotate, can only adopt the spray gun to rotate and lead to the conveying pipeline winding is solved, realize the automatic spraying technology that flexible cable spouts outward, easily realize production automation and batched.
Specifically, the raw materials entry includes first raw materials entry and second raw materials entry, annular stock chest includes first annular stock chest and second annular stock chest with first raw materials entry and second raw materials entry intercommunication respectively, the raw materials export including respectively with first raw materials export and the second raw materials export of first annular stock chest and second annular stock chest intercommunication, discharging channel includes respectively with first raw materials export and the first discharging channel and the second discharging channel of second raw materials export intercommunication.
Specifically, the second annular stock chest is located and is close to the raw materials export on the inner rotary shaft outer wall, first annular stock chest is located and keeps away from the raw materials export on the inner rotary shaft outer wall, the radial depth of first annular stock chest is greater than the radial depth of second annular stock chest.
Preferably, sealing rings are arranged on two axial sides of the annular storage tank.
Preferably, bearings are installed inside both ends of the outer tube, and both ends of the inner rotary shaft are respectively installed on the bearings.
Preferably, the rotary driving mechanism comprises a driving motor, a driving sprocket is arranged on an output shaft of the driving motor, a driven sprocket is arranged at one end of the inner rotating shaft, and the driving sprocket and the driven sprocket are connected through a chain.
Preferably, the material mixing device further comprises a spray gun support, the spray gun support is arranged on the outer side of the material outlet and fixedly connected with the inner rotating shaft, the spray gun is arranged on the spray gun support, and the spray gun is connected with the material outlet through a conveying pipe arranged on the spray gun support.
The technical scheme of the utility model a method of the surface continuous rotation spraying polyurea material of flexible cable of bridge still is disclosed, the surface continuous rotation spraying polyurea device of the flexible cable of adoption foretell bridge makes the spray gun encircle the cable and rotates in succession the syntropy and carry out the method of cable surface spraying polyurea material.
The utility model has the advantages that:
1. the utility model discloses a spraying scheme of "one-way continuous rotation of spray gun, cable body direct motion", the spraying solution that can not rotate to longer cable body specially, the conveying pipeline winding problem that spray gun rotatory spraying leads to has been solved, cable body or long tube have been extended, the spraying scheme of column part surface, it is an innovation not only to be anticorrosive at prestressing force trade cable body surface coating, and to the long tube at the anticorrosive trade of spraying, the two ingredient surface coating of column part also is an innovation, simultaneously can be the thickness homogeneity of the flexible cable surface polyurea coating of furthest's assurance.
2. Adopt the mode of production of rotary device automatic feed spraying, easily realize large-scale automation and batchization, avoid the quality that manual spraying brought unstable simultaneously, the labor safety problem of spraying powder is inhaled to operative employee's respiratory track mistake.
3. The rotary feeding device for spraying is connected with the spray gun, occupies a smaller space volume than other spraying modes, is easy to realize in a recycling spraying room, prevents spraying powder from dissipating around to pollute the environment, is a great help for environmental protection of factories, and is easy to meet the requirement of environmental protection in factories.
4. The rotary sealing rings are adopted on two sides of the storage annular groove of the rotary device rotary shaft, so that the channeling and condensation of A, B materials can be blocked, and the conveying pressure of A, B materials can be ensured, so that the spraying pressure condition and the flow demand are met.
5. The bearing and the elastic retainer ring are arranged at two ends of the rotating shaft, and the bearing supports are used for preventing the bearing from being damaged by eccentric load to the rotating seal ring, so that the rotating feeding device has longer service life and stronger maintainability.
Drawings
Fig. 1 is a schematic view of the polyurea spraying device of the present invention.
Fig. 2 is a cross-sectional view of a feeding mechanism according to embodiment 1 of the present invention.
Fig. 3 is a cross-sectional view of a feeding mechanism according to embodiment 2 of the present invention.
Fig. 4 is a side view of a feeding mechanism according to embodiment 2 of the present invention.
In the figure, 1-outer tube, 2-inner rotating shaft, 3-pulling rope, 4-channel, 5-spray gun, 6-raw material inlet, 61-first raw material inlet, 62-second raw material inlet, 7-annular storage tank, 71-first annular storage tank, 72-second annular storage tank, 8-raw material outlet, 81-first raw material outlet, 82-second raw material outlet, 9-discharge channel, 91-first discharge channel, 92-second discharge channel, 10-sealing ring, 11-bearing, 12-driving motor, 13-driving sprocket, 14-driven sprocket, 15-chain, 16-spray gun bracket, 17-conveying pipe, 18-polyurea A component raw material, 19-polyurea B component raw material, 20-polyurea spraying host, 21-polyurea conveying pipe, 22-base.
Detailed Description
In order to explain the technical content, the achieved objects and the effects of the present invention in detail, the following description is made in conjunction with the embodiments and the accompanying drawings.
Example 1
As shown in fig. 1-2, the utility model provides a polyurea device for continuously and rotationally spraying on the outer surface of a flexible cable of a bridge, which comprises a spray gun 5 and a feeding mechanism, wherein the feeding mechanism comprises an outer tube 1 and an inner rotating shaft 2 arranged inside the outer tube 1, the outer tube 1 and the inner rotating shaft 2 are arranged coaxially, and the inner rotating shaft 2 is driven by a rotary driving mechanism and rotates relative to the outer tube 1; the center of interior pivot 2 is provided with the passageway 4 that supplies 3 axial of cable to pass through, and 2 one end of interior pivot are connected with spray gun 5, and spray gun 5 is driven by interior pivot 2 and encircles cable 3 and rotate. Form confined space between 1 inner wall of outer tube and the 2 outer walls of internal rotary shaft, be provided with raw materials entry 6 on the surface of outer tube 1, annular stock chest 7 that sets up on 2 outer walls of internal rotary shaft, the radial one side of annular stock chest 7 communicates with raw materials entry 6, axial one side and discharging channel 9 intercommunication, axial one end including 2 is provided with raw materials export 8, discharging channel 9 and the annular stock chest 7 intercommunication of 2 inside of internal rotary shaft including setting up are passed through to the inboard of raw materials export 8, the outside and 5 fixed connection of spray gun.
When raw materials enter from the raw material inlet 6 of the outer tube 1, the annular storage tank 7 corresponds to the raw material inlet 6, so that the raw materials can directly enter the annular storage tank 7 in the rotating process of the inner rotating shaft 2; annular stock chest 7 is connected with raw materials export 8, and raw materials export 8 is connected with spray gun 5, and when interior pivot 2 was rotatory, the raw materials of outer tube 1 still can last the feed until in spray gun 5, thereby spray gun 5 is driven by interior pivot 2 and is encircleed cable 3 and rotate the reality and realize continuous rotation feed technology.
As the preferred scheme of above-mentioned embodiment 1, as shown in fig. 2, two sides of the annular material storage tank 7 are respectively provided with a seal ring 10 for sealing, the seal ring 10 adopts a dynamic rotary seal ring with super wear resistance, high pressure resistance and long service life, the sealing of the material can be realized while the inner rotating shaft is rotating, the raw material condensation caused by the mixing of the external air or water vapor into the raw material can be prevented, a bearing 11 and an elastic retainer ring are installed inside two ends of the outer tube 1, the bearing 11 is used for installing the inner rotating shaft 2 to ensure the coaxiality of the inner rotating shaft 2, and the damage of the inner rotating shaft 2 to the seal ring 10 due to stress unbalance loading can be prevented, so that the feeding mechanism has long service life.
Example 2
As shown in fig. 3-4, the present example is different from example 1 in that the present example employs two-component feed spraying, the cross-sectional view of the feeding mechanism is shown in fig. 3, the raw material inlet 6 includes a first raw material inlet 61 and a second raw material inlet 62 provided on the outer tube 1, the inner rotary shaft 2 corresponding to the positions of the first raw material inlet 61 and the second raw material inlet 62 of the outer pipe 1 is respectively provided with a first annular storage tank 71 and a second annular storage tank 72, the raw material outlet 8 comprises a first raw material outlet 81 and a second raw material outlet 82, the discharging channel 9 comprises a first discharging channel 91 and a second discharging channel 92, the first annular storage tank 71 and the second annular storage tank 72 are respectively communicated with the first raw material outlet 81 and the second raw material outlet 82 through the first discharging channel 91 and the second discharging channel 92, and the first raw material outlet 81 and the second raw material outlet 82 are respectively connected with two conveying pipes 17 of the spray gun 5 mounted on the end face of the inner rotary shaft 2 of the spray gun support 16.
Specifically, the second annular storage trough 72 is close to the raw material outlet 8, the first annular storage trough 71 is far away from the raw material outlet 8, and the depth of the first annular storage trough 71 is greater than that of the second annular storage trough 72, so that the first discharging channel 91 can avoid the second annular storage trough 72 to lead to the first raw material outlet 81, and the first discharging channel 91 only needs to be processed into a straight channel.
The difference from embodiment 1 is that, as shown in fig. 3, sealing rings 10 are disposed between the first annular storage groove 71 and the second annular storage groove 72 outside the first annular storage groove 71 and the second annular storage groove 72 for sealing, which prevents A, B materials from communicating with each other and condensing, which affects the operation of the rotary feeding device, prevents a material a from condensing due to the mixing of external air or water vapor into the material a, and simultaneously ensures the delivery pressure of the material A, B.
By adopting the continuous rotary polyurea spraying device of the embodiment, the method for spraying the polyurea material on the outer surface of the inhaul cable 3 by enabling the spray gun 5 to continuously rotate around the inhaul cable 3 in the same direction to spray the polyurea material on the outer surface of the inhaul cable 3 comprises the following steps:
as shown in fig. 1, the polyurea spraying host 20 pumps the polyurea a component raw material 18 and the polyurea B component raw material 19 into the host respectively to heat and pressurize, and then conveys the polyurea a component raw material 18 and the polyurea B component raw material 19 to the feeding mechanism through the polyurea conveying pipeline 21, so that the polyurea a component raw material 18 and the polyurea B component raw material 19 continuously rotate and feed in the feeding mechanism until entering the conveying pipe 17 at the end of the spray gun 5, and finally enter the spray gun 5 respectively to mix and spray under the driving of the spray gun support 16. The feeding mechanism is installed on the base 22 and is driven to rotate by a corresponding rotary driving mechanism, the inner rotating shaft 2 in the feeding mechanism is connected with the rotary driving mechanism through a chain 15, specifically, a driving chain wheel 13 is arranged on an output shaft of the driving motor 12, a driven chain wheel 14 is arranged at one end of the inner rotating shaft 2, and the driving chain wheel 13 is connected with the driven chain wheel 14 through the chain 15. In addition, the connection can be realized by the transmission modes of gears, belts, chain wheels and the like; for better angle adjustment, a spray gun bracket 16 can be arranged on one side of the inner rotating shaft 2, the spray gun 5 is installed on the spray gun bracket 16 to rotate together, so that the coating with the ideal expected polyurea thickness can be obtained by adjusting different advancing speeds of the inhaul cable 3.
Although the invention has been described in detail and with reference to specific embodiments thereof, it will be apparent to one skilled in the art that modifications and improvements can be made thereto. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (7)
1. The utility model provides a continuous rotatory spraying polyurea device of surface of flexible cable of bridge, includes spray gun (5), feed mechanism and actuating mechanism, its characterized in that: the feeding mechanism comprises an outer pipe (1) and an inner rotating shaft (2) which are coaxially arranged, and the inner rotating shaft (2) is connected with the rotary driving mechanism; a channel (4) for an inhaul cable (3) to axially pass through is arranged in the center of the inner rotating shaft (2), and one end of the inner rotating shaft (2) is connected with a spray gun (5);
wherein, outer tube (1) inner wall with form confined space between interior pivot (2) outer wall be provided with raw materials entry (6) on the surface of outer tube (1) be provided with on interior pivot (2) outer wall with annular stock chest (7) of raw materials entry (6) intercommunication the axial of interior pivot (2) is provided with raw materials export (8), the inboard of raw materials export (8) through set up including inside discharge passage (9) of pivot (2) with annular stock chest (7) intercommunication, the outside with spray gun (5) fixed connection.
2. The device for continuously and rotationally spraying polyurea on the outer surface of the flexible inhaul cable of the bridge according to claim 1, wherein: the raw material inlet (6) comprises a first raw material inlet (61) and a second raw material inlet (62), the annular storage tank (7) comprises a first annular storage tank (71) and a second annular storage tank (72) which are respectively communicated with the first raw material inlet (61) and the second raw material inlet (62), the raw material outlet (8) comprises a first raw material outlet (81) and a second raw material outlet (82) which are respectively communicated with the first annular storage tank (71) and the second annular storage tank (72), and the discharging channel (9) comprises a first discharging channel (91) and a second discharging channel (92) which are respectively communicated with the first raw material outlet (81) and the second raw material outlet (82).
3. The device for continuously and rotationally spraying polyurea on the outer surface of the flexible inhaul cable of the bridge according to claim 2, wherein: the second annular storage tank (72) is located close to the outer wall of the inner rotating shaft (2) of the raw material outlet (8), the first annular storage tank (71) is located far away from the outer wall of the inner rotating shaft (2) of the raw material outlet (8), and the radial depth of the first annular storage tank (71) is larger than that of the second annular storage tank (72).
4. The device for continuously and rotatably spraying polyurea on the outer surface of the flexible inhaul cable of the bridge according to any one of claims 1 to 3, wherein: sealing rings (10) are arranged on two axial sides of the annular storage tank (7).
5. The device for continuously and rotatably spraying polyurea on the outer surface of the flexible inhaul cable of the bridge according to any one of claims 1 to 3, wherein: the bearing (11) is installed inside the two ends of the outer pipe (1), and the two ends of the inner rotating shaft (2) are installed on the bearing (11) respectively.
6. The device for continuously and rotatably spraying polyurea on the outer surface of the flexible inhaul cable of the bridge according to any one of claims 1 to 3, wherein: the rotary driving mechanism comprises a driving motor (12), a driving chain wheel (13) is arranged on an output shaft of the driving motor (12), a driven chain wheel (14) is arranged at one end of the inner rotating shaft (2), and the driving chain wheel (13) is connected with the driven chain wheel (14) through a chain (15).
7. The device for continuously and rotatably spraying polyurea on the outer surface of the flexible inhaul cable of the bridge according to any one of claims 1 to 3, wherein: still include spray gun support (16), spray gun support (16) set up in the raw materials export (8) outside, and with interior pivot (2) fixed connection, spray gun (5) set up on spray gun support (16), spray gun (5) through setting up conveyer pipe (17) on spray gun support (16) with raw materials export (8) are connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920908681.XU CN211070523U (en) | 2019-06-17 | 2019-06-17 | Polyurea device for continuously and rotatably spraying outer surface of flexible inhaul cable of bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920908681.XU CN211070523U (en) | 2019-06-17 | 2019-06-17 | Polyurea device for continuously and rotatably spraying outer surface of flexible inhaul cable of bridge |
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| CN211070523U true CN211070523U (en) | 2020-07-24 |
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| CN201920908681.XU Active CN211070523U (en) | 2019-06-17 | 2019-06-17 | Polyurea device for continuously and rotatably spraying outer surface of flexible inhaul cable of bridge |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110201810A (en) * | 2019-06-17 | 2019-09-06 | 柳州欧维姆机械股份有限公司 | The outer surface continuous rotation spray polyurea device and process of bridge flexible cable |
-
2019
- 2019-06-17 CN CN201920908681.XU patent/CN211070523U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110201810A (en) * | 2019-06-17 | 2019-09-06 | 柳州欧维姆机械股份有限公司 | The outer surface continuous rotation spray polyurea device and process of bridge flexible cable |
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