A leveling glue automatic coating device for bridge support installation
Patent Information
- Application Number
- CN202611263704.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-08-19
- Publication Date
- 2026-09-25
AI Technical Summary
在放置作业前，需要保障支座放置底面的水平，也即支座垫石的支撑面需要提供稳定的水平状态以确保桥梁顺利安装，传统方式通过在支座垫石上放置垫块或者在支座垫石上涂抹找平胶的方式来调整顶部支撑面的水平，但由于垫块需要在架设过程中不断敲击调整，临时调整步骤繁琐，耗费人力物力，因此使用找平胶涂抹的方式开始逐渐代替垫块的方式
本发明通过配置能够转动的涂胶支架，利用涂胶支架自身的结构对支座垫石上的螺栓孔进行防护，并通过能够在旋转过程中供应混合胶的旋转接头，以使涂胶支架在旋转时能够将胶层以转圈的方式从上到下进行供应，并在不断供应的过程中挤压胶层，让胶层向边缘位置处扩散，而涂胶支架本身受双轴倾角传感器的影响，能够维持其平面位置，因此在胶层受到涂胶支架底面挤压向两侧扩散后，这种底面的限位以及转动抹平动作能够限制胶层的顶面始终处于水平面状态，从而能够在撤出涂胶机构后确保胶层平面整体的水平状态，无需多次反复测量，且可以避免胶层受压变形影响水平度的检测，有利于确保最终胶层支撑平面的水平结构形成，从而方便于后续桥梁的安装动作。
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Figure CN122806699A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to an automatic application device for leveling adhesive used in bridge bearing installation, belonging to the field of adhesive application technology. Background Technology
[0002] During bridge construction, some steps require pre-installing bearings on top of the bridge structure. These bearings are then hoisted onto the bearing pads of the cap beam, followed by concrete pouring and drying, ultimately completing the bridge erection process. Before placement, it's crucial to ensure the bearing's base is level; the bearing pad's support surface must provide a stable, level condition for successful bridge installation. Traditionally, this was achieved by placing shims or applying leveling adhesive to the bearing pads to adjust the level. However, shims require constant tapping and adjustment during construction, making temporary adjustments cumbersome and costly in terms of manpower and resources. Therefore, applying leveling adhesive is gradually replacing shims. However, leveling adhesive is usually applied manually and leveled during the application process. Leveling tests need to be performed before the adhesive dries. This method makes it difficult to quickly maintain a stable horizontal state on the surface of the adhesive layer. Repeated adjustments to the application are too cumbersome. Furthermore, the leveling ruler applies force to the leveling adhesive during the leveling process, which can easily cause the leveling adhesive to be squeezed and deformed, ultimately affecting the measurement results and the final support installation plane. Summary of the Invention
[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide an automatic application device for leveling adhesive for bridge bearing installation. This device automates the extrusion and application of leveling adhesive, and can directly achieve a horizontal state on the upper surface of the adhesive layer after the application is completed. This eliminates the need for repeated measurements and adjustments to the thickness and plane of the adhesive layer, thus ensuring the smooth progress of the installation operation.
[0004] To achieve the above objectives, the present invention employs the following technical solution: This invention provides an automatic leveling adhesive application device for bridge bearing installation, comprising an installation plate and an adhesive supply cylinder. The bottom of the installation plate is provided with several leveling components for leveling the plate. A dual-axis tilt sensor is provided on the installation plate. The middle part of the installation plate is hollow, and an adhesive application bracket is rotatably mounted thereon. A through hole is provided at the central axis of the adhesive application bracket, and an annular protective structure capable of surrounding the bolt holes of the bearing pad is provided at the through hole. The bottom surface of the adhesive application bracket is lower than the bottom surface of the installation plate. An adhesive supply hole is provided on the adhesive application bracket outside the annular protective structure, close to the annular protective structure. A rotary joint is installed on the adhesive supply hole. The adhesive supply cylinder supplies leveling adhesive to the lower side of the adhesive application bracket through the rotary joint. The installation plate also provides a first driving component for driving the adhesive application bracket to rotate.
[0005] Specifically, an outer limiting shield is rotatably provided on the outer ring of the bottom surface of the adhesive application bracket, and the annular protective structure is an inner protective shield placed in the through hole and capable of rotating with the through hole. Both the outer limiting shield and the inner protective shield can be placed on the support pad stone, and an air vent is provided on the adhesive application bracket near the outer limiting shield.
[0006] Specifically, an exhaust pipe is inserted into the vent hole, the bottom of the exhaust pipe is lower than the bottom of the adhesive bracket, a threaded interface is provided above the exhaust pipe, and a detachable sealing cap is provided at the threaded interface of the exhaust pipe.
[0007] Specifically, a stirring paddle is rotatably installed at the bottom of the glue supply cylinder cavity, and a second driving assembly for driving the stirring paddle to rotate is also installed above the glue supply cylinder. The glue supply cylinder is connected to a feed pipe and a rotary joint. A first peristaltic pump for driving the feed pipe to supply material is also installed at the bottom of the glue supply cylinder. Several support rods are installed below the glue supply cylinder, and the middle section of the feed pipe is wound around the support rods.
[0008] Specifically, a piston plate is slidably disposed inside the glue supply cylinder. The piston plate slides and seals with the inner wall of the glue supply cylinder and the main shaft of the stirring paddle to divide the glue supply cylinder into two relatively closed cavities. A third drive assembly for driving the piston plate to rise and fall is disposed in the upper cavity of the glue supply cylinder. A first air inlet pipe connected to the upper cavity is disposed on the glue supply cylinder. A second air inlet pipe that connects the upper cavity and the lower cavity is disposed on the piston plate. One-way valves are installed on both the first air inlet pipe and the second air inlet pipe. The gas allowable direction of both one-way valves is pointing towards the discharge direction of the feed pipe.
[0009] Specifically, it also includes a second peristaltic pump assembly, a first feed pipe and a second feed pipe connected to the cavity below the glue supply cylinder. The second peristaltic pump assembly includes a pump and a positioning box disposed at the end of the pump. The positioning box is provided with an arc-shaped guide groove through which the first feed pipe and the second feed pipe pass. The output end of the pump is provided with a disturbance paddle that can cyclically squeeze the first feed pipe and the second feed pipe onto the arc-shaped guide groove. The cross-sectional area ratio of the first feed pipe and the second feed pipe is the mixing ratio of the raw materials in the pipe.
[0010] Specifically, the glue supply cylinder is equipped with a cleaning fluid inlet pipe and a circulation pipe that can communicate with the cavity below the glue supply cylinder. Both the cleaning fluid inlet pipe and the circulation pipe are equipped with sealing heads, and the interface of the circulation pipe can be matched and connected with the feed pipe or rotary joint.
[0011] Specifically, a positioning plate is provided below the mounting plate, a grating ruler is provided on the positioning plate, a connecting plate is installed on the bottom surface of the mounting plate, and the connecting plate is connected to the reading head of the grating ruler.
[0012] Specifically, the bottom surface of the adhesive application bracket is slidably and sealingly equipped with a scraper in the vertical direction, and the adhesive application bracket is also equipped with a fourth drive component for driving the scraper to rise and fall.
[0013] Specifically, the plane where the scraper is located and the line connecting the glue supply hole and the rotation axis of the glue application bracket are set at an acute angle.
[0014] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: This invention utilizes a rotatable adhesive application bracket to protect the bolt holes on the bearing pad. A rotary joint that supplies the mixed adhesive during rotation allows the bracket to deliver the adhesive layer from top to bottom in a circular motion. This continuous supply compresses the adhesive layer, causing it to spread towards the edges. The bracket itself, influenced by a dual-axis tilt sensor, maintains its planar position. Therefore, after the adhesive layer is compressed and spread to both sides by the bottom surface of the bracket, this bottom-level constraint and rotating smoothing action ensure that the top surface of the adhesive layer remains level. This guarantees the overall levelness of the adhesive layer after the application mechanism is removed, eliminating the need for repeated measurements and preventing deformation of the adhesive layer from affecting levelness detection. This facilitates the formation of a level structure for the final adhesive layer support plane, thus simplifying subsequent bridge installation. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of the automatic leveling adhesive application device provided in an embodiment of the present invention; Figure 2 This is the present invention. Figure 1Enlarged view of section A of the automatic leveling adhesive application device provided in the embodiment; Figure 3 This is the present invention. Figure 1 Enlarged view of section B of the automatic leveling adhesive application device provided in the embodiment; Figure 4 This is the present invention. Figure 1 Enlarged view of the structure at point C of the automatic leveling adhesive application device provided in the embodiment; Figure 5 This is the present invention. Figure 1 Enlarged view of the structure at point D of the automatic leveling adhesive application device provided in the embodiment; Figure 6 This is a front view of the automatic leveling adhesive application device provided in an embodiment of the present invention; Figure 7 This is the present invention. Figure 6 A cross-sectional view of the automatic leveling adhesive application device provided in the embodiment along the EE direction; Figure 8 This is the present invention. Figure 6 A cross-sectional view of the automatic leveling adhesive application device provided in the embodiment, taken in the FF direction. Figure 9 This is the present invention. Figure 8 Enlarged view of the structure at point G of the automatic leveling adhesive application device provided in the embodiment; Figure 10 This is a side view of the automatic leveling adhesive application device provided in an embodiment of the present invention; Figure 11 This is the present invention. Figure 10 HH direction cross-sectional view of the automatic leveling adhesive application device provided in the embodiment; Figure 12 This is the present invention. Figure 11 Enlarged view of section I of the automatic leveling adhesive application device provided in the embodiment; Figure 13 This is the present invention. Figure 10 A cross-sectional view of the automatic leveling adhesive application device provided in the embodiment, along the JJ direction; Figure 14 This is the present invention. Figure 13 Enlarged view of the structure at point K of the automatic leveling adhesive application device provided in the embodiment; Figure 15 This is the present invention. Figure 13 Enlarged view of the structure at point L of the automatic leveling adhesive application device provided in the embodiment; Figure 16 This is the present invention. Figure 13 Enlarged view of the structure at point M of the automatic leveling adhesive application device provided in the embodiment; Figure 17 This is the present invention. Figure 10 A cross-sectional view along the NN direction of the automatic leveling adhesive application device provided in the embodiment; Figure 18 This is the present invention. Figure 17 Enlarged view of the structure at point P of the automatic leveling adhesive application device provided in the embodiment; Figure 19 This is an exploded view of the adhesive application bracket installation structure provided in an embodiment of the present invention; Figure 20 This is a schematic diagram of the assembly of the outer limiting shield provided in an embodiment of the present invention; Figure 21 This is a schematic diagram of the bottom structure of the adhesive application bracket provided in an embodiment of the present invention; Figure 22 This is another schematic diagram of the assembly of an external limiting shield provided in an embodiment of the present invention; Reference numerals: 1. Mounting plate; 2. Leveling assembly; 3. Glue applicator bracket; 4. Rotary joint; 5. Glue supply cylinder; 6. First drive assembly; 7. Outer limit shield; 8. Inner protective shield; 9. Exhaust pipe; 10. Sealing cap; 11. Second drive assembly; 12. Stirring paddle; 13. First peristaltic pump; 14. Elevating rod; 15. Feed pipe; 16. Third drive assembly; 17. Piston plate; 18. First air inlet pipe; 19. Second air inlet pipe; 20. First feed pipe; 21. Pump; 22. Positioning box; 23. Disturbance lever; 24. Positioning plate; 25. Grating ruler; 26. Connecting plate; 27. Scraper; 28. Fourth drive assembly; 29. Cleaning fluid dispensing pipe; 30. Circulation pipe; 31. Second feed pipe. Detailed Implementation
[0016] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention.
[0017] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are used only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.
[0018] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.
[0019] This invention provides an automatic leveling adhesive application device for bridge bearing installation. It automates the extrusion and application of leveling adhesive, achieving a level surface directly after application without repeated measurement and adjustment of thickness and plane, thus facilitating smooth installation. To achieve automatic and even application of the leveling adhesive, the device includes a mounting plate 1 and an adhesive supply cylinder 5. The supply cylinder 5 serves as a container for providing the leveling adhesive. To ensure the leveling adhesive is automatically and evenly applied to the bearing pad after extrusion, several leveling components 2 are installed at the bottom of the mounting plate 1. A dual-axis tilt sensor is also installed on the mounting plate 1 to adjust its levelness in real time. (See reference...) Figure 1The leveling component 2 is configured as multiple lifting components, including but not limited to using hydraulic cylinders to lift the corners of the mounting plate 1. When lifting each corner, care should be taken to ensure that the connections have a certain degree of freedom, such as using universal joints or elastic layers for support, to avoid instability of the mounting plate 1 or other tilting deformation caused by rigid displacement changes. After the mounting plate 1 is leveled using a dual-axis tilt sensor, the top surface of the adhesive application plane can be restricted to constrain the shape of the leveling adhesive on the upper surface after application. For this purpose, the middle part of the mounting plate 1 can be configured as a hollow structure, and an adhesive application bracket 3 can be rotatably installed in the middle of the mounting plate 1. The adhesive application operation should not affect the pre-supported stone on the support pad located below the adhesive application bracket 3. Since the bolt holes are pre-drilled, an annular protective structure can be installed at the rotation axis of the adhesive application bracket 3 to surround the bolt holes of the bearing pad. Therefore, the adhesive application bracket 3 can preferably be configured as a box structure with a flat bottom for easy rotational assembly. A through hole is set in the middle of the box, which can be rotatably sealed with the through hole of the adhesive application bracket 3 using an annular plate structure. The bottom surface of the annular plate structure can be designed with a flexible layer to ensure full contact with the upper surface of the bearing pad (specific optimization design can be found in the later description of the inner protective cover 8). By simultaneously protecting multiple bolt holes, the leveling adhesive is prevented from overflowing into the bolt holes in the middle during the adhesive application process. To achieve the adhesive application action, here... The bottom surface of the adhesive applicator 3 is lower than the bottom surface of the mounting plate 1. An adhesive supply hole is located on the outer side of the annular protective structure on the adhesive applicator 3, and is positioned close to the annular protective structure. A first drive assembly 6 (such as a servo motor) is also provided on the mounting plate 1 to drive the adhesive applicator 3 to rotate, allowing the adhesive supply hole to rotate continuously during adhesive supply. Because the annular protective structure can block the center, preventing the adhesive from overflowing, continuous adhesive supply is achieved by moving in a ring around the annular protective structure during rotation. During continuous adhesive supply, the lower layer of adhesive is squeezed and diffused to the outer perimeter. Due to the diffusion process, the bottom surface of the adhesive applicator 3 restricts... The upper surface of the adhesive is flat, so through the combined effect of continuous diffusion of the adhesive layer and continuous application by the rotating bottom surface of the adhesive application bracket 3, the top surface of the adhesive layer can be flush with the bottom surface of the adhesive application bracket 3. This ensures that a stable and level adhesive application plane is formed after the adhesive application bracket 3 is removed, eliminating the need for repeated measurement, leveling, and application. It also effectively avoids the problem of unstable level measurement results caused by adhesive settling errors, helping to ensure that the supporting plane of the leveling adhesive is a stable horizontal plane, and preventing local flatness with local bulges or depressions. This helps ensure the horizontal state of the support during placement, thus promoting the smooth installation of the bridge. To supply leveling adhesive during the continuous rotation of the adhesive application bracket 3, a rotary joint 4 can be installed on the adhesive supply hole. (Refer to...) Figure 2As shown, the glue supply cylinder 5 is configured to supply leveling glue to the lower side of the glue application bracket 3 via the rotary joint 4. The specific means of driving the glue flow is not limited here. In this embodiment, when the required glue thickness is relatively thin, the glue can freely diffuse outward without restriction, as long as the size of the diffusion plane is sufficient to support the supports set at the bottom of the bridge. The glue application bracket 3 simulates the scraping action of the glue layer during continuous rotation, which is beneficial to the diffusion of the glue layer and prevents the glue layer from sticking to the lower surface of the glue application bracket 3. This can naturally avoid the glue layer from sticking and causing damage to the surface structure of the glue layer when the glue application bracket 3 is removed. As another preferred embodiment, an oil film can also be supplied to the lower surface of the glue application bracket 3 before removal (such as by opening an additional sealable liquid supply tank) to further improve the anti-adhesion effect. The specific means or other configuration methods are not limited here. For applications requiring excessively thick leveling adhesive, overflowing the adhesive to the sides may lead to waste and insufficient support area. Therefore, an outer limiting shield 7 can be rotatably installed on the outer ring of the bottom surface of the adhesive application bracket 3. In this case, an inner protective shield 8, capable of rotating and cooperating with the inner wall of the through-hole in the middle of the adhesive application bracket 3, can be configured as a reference. Figure 19 As shown, at this time, both the outer limiting shield 7 and the inner protective shield 8 can be placed on the support pad in a relatively stable manner. The support contact of the foundation and a small amount of positional sway margin can be ensured by configuring an elastic layer on the bottom surface. Figure 11The inner protective shield 8 shown can adaptively fall onto the upper surface of the support pad stone through the through hole of the glue application bracket, so that the bottom surface can be flush with the bottom surface of the outer limiting shield 7. At this time, by setting an air vent on the glue application bracket 3 and located near the outer limiting shield 7, the glue can flow from the outside of the inner protective shield 8 to the inner wall of the outer limiting shield 7 during the continuous glue supply process, until the air layer between the two is filled and discharged through the through hole. Under the continuous rotation and application of the glue application bracket 3, a smooth glue layer with a stable height is formed. For leveling adhesive layers requiring a thickness greater than 8cm, although the equipment can be directly removed due to the non-collapse property of the adhesive, it is preferable to remove the application equipment after the leveling adhesive has set. At this time, the application bracket 3 can be continuously rotated to simulate the leveling process, preventing the adhesive layer from adhering to the application bracket 3. Further anti-adhesion measures can be implemented using PTFE coatings to minimize the impact of external factors on the adhesive layer structure. However, it is crucial to remove the equipment before it is fully cured to avoid difficulties in subsequent removal after curing. It is important to note that the outer limiting shield 7 and the inner protective shield 8 may not completely seal against the upper surface of the support pad during actual operation. Small gaps may cause a small amount of adhesive to overflow, but the resistance to this overflow is significantly greater than the resistance to diffusion into the cavity. Therefore, with proper configuration, it will not significantly affect the actual application and leveling process. As another preferred configuration, the outer limiting shield 7 and the application bracket 3 can be connected and supported by springs, maintaining elastic support while maintaining rotation. (Refer to...) Figure 22 As shown, at this time, the inner wall surface of the adhesive application bracket 3 can achieve lifting and lowering movement at the inner wall surface of the outer limiting cover. While maintaining rotation and sliding, it can provide the outer limiting cover 7 with the activity space to move up and down through elasticity. When the height position of the mounting plate 1 is adaptively adjusted, the outer limiting cover 7 maintains contact with the bottom surface of the support pad stone, thereby efficiently adapting to the thickness requirements of various leveling adhesives. After the adhesive is formed, the stroke that is wider at the bottom and narrower at the top is also conducive to normal demolding.
[0020] This invention provides an automatic leveling adhesive application device for bridge bearing installation. To prevent the leveling adhesive from overflowing from the vent and potentially accumulating excessive cured waste on the adhesive application bracket 3, an vent pipe 9 can be inserted into the vent. (See reference...) Figure 18As shown, the bottom surface of the exhaust pipe 9 is slightly lower than the bottom surface of the adhesive application bracket 3. This allows excess adhesive to overflow from the exhaust pipe 9 after the air is exhausted, facilitating timely observation and shutdown. When removing the exhaust pipe 9, it is necessary to ensure that there are no local protrusions on the top surface of the adhesive layer that could affect the horizontal placement of the support. To this end, the top of the exhaust pipe 9 can be configured as a threaded interface. By installing a removable sealing cap 10 at the threaded interface of the exhaust pipe 9, after the upper surface of the adhesive layer is smoothed (since the lowest point of the exhaust pipe 9 is lower than the bottom plane of the adhesive application bracket 3, a shallow annular groove will be formed on the outer ring after smoothing, but this will not affect the overall adhesive support structure), the excess adhesive in the exhaust pipe 9 can be removed by sealing the sealing cap 10 in a way that keeps it inside the pipe under external air pressure. This prevents the adhesive layer from leaving protrusions after curing, allowing for direct installation of the support without secondary cutting or leveling.
[0021] This invention provides an automatic application device for leveling adhesive used in bridge bearing installation. Specifically, it offers a power method for supplying adhesive to a rotary joint 4. Specifically, a stirring paddle 12 is rotatably mounted at the bottom of the adhesive supply cylinder 5, and a second drive assembly 11 (such as a servo motor drive) is mounted above the cylinder 5 to drive the stirring paddle 12. Under continuous stirring, the leveling adhesive has good fluidity, facilitating its smooth flow from the pipe. The adhesive supply cylinder 5 is connected to the rotary joint 4 via a supply pipe 15. Considering that traditional liquid pumps are difficult to use due to the high viscosity and poor fluidity of the leveling adhesive, a first peristaltic pump 13 is also mounted at the bottom of the adhesive supply cylinder 5 to drive the supply pipe 15. The first peristaltic pump 13 continuously provides extrusion pressure, allowing the adhesive to be smoothly extruded from the supply pipe 15 to the rotary joint 4. This is a preferred configuration. Figure 16 As shown, by installing several support poles 14 below the glue supply cylinder 5, the middle section of the feed pipe 15 is wound around the support poles 14. Thus, the curling action of the feed pipe 15 can form an elastic shrinkage structure, which can naturally adapt to the movement and offset of the rotary joint 4 without affecting the layout of surrounding facilities, and provide sufficient height support to avoid the feed pipe 15 dragging on the ground, causing conflicts and entanglements between equipment structures.
[0022] This invention provides an automatic leveling adhesive application device for bridge bearing installation. When the first peristaltic pump 13 provides power for adhesive supply, considering the high viscosity of the adhesive material, which makes it difficult for the pipe to recover its deformation after compression, thus preventing the material from smoothly entering the pipe for continuous supply, sufficient air pressure can be configured to guide the material into the pipe. Preferably, a piston plate 17 can be slidably configured inside the adhesive supply cylinder 5. (Refer to...) Figure 13As shown, at this time, the piston plate 17 slides and seals with the inner wall of the glue supply cylinder 5 and the main shaft of the stirring paddle 12 to divide the glue supply cylinder 5 into two relatively closed cavities. A third drive assembly 16 (such as a hydraulic cylinder) for driving the piston plate 17 to rise and fall is provided in the upper cavity of the glue supply cylinder 5. A first air inlet pipe 18 connected to the upper cavity is provided on the glue supply cylinder 5, and a second air inlet pipe 19 connecting the upper and lower cavities is provided on the piston plate 17. One-way valves are installed on both the first and second air inlet pipes 18 and 19, with the gas allowable direction of both one-way valves pointing towards the discharge direction of the feed pipe 15. Therefore, during the reciprocating movement of the piston plate 17 driven by the third drive assembly 16, the two one-way valves can intermittently supply air to the interior of the glue supply cylinder 5. Figure 13 As illustrated, when the piston plate 17 rises, the upper one-way valve closes. When the air pressure in the upper cavity is greater than that in the lower cavity, the lower one-way valve opens, allowing gas from the upper cavity to enter the lower cavity. When the piston plate 17 descends, the upper one-way valve opens, allowing air to enter the upper cavity. At this time, the lower one-way valve closes, and the air pressure in the lower cavity continuously rises as the piston plate 17 descends, providing gas pressure to fill the feed pipe 15 with the mixed colloid. This pressure decreases after resetting as the material is discharged. This configuration only requires the lifting and lowering of the third drive assembly 16 to effectively discharge the colloid from the feed pipe 15, eliminating the need for additional air compression equipment and simplifying the device configuration. Figure 11 or Figure 13 The third drive assembly 16 is shown to be located in the upper cavity. As another preferred configuration, in order to ensure that the piston plate 17 has a sufficiently large stroke, it is also possible to configure only the drive part to be located in the upper cavity, with the main body located on the outside of the glue supply cylinder 5 and maintaining a sealed fit.
[0023] This invention provides an automatic application device for leveling adhesive used in bridge bearing installation. Because the leveling adhesive has a short curing time after mixing (it is composed of two components, and the curing time varies greatly depending on actual usage requirements; it may solidify and lose its fluidity within one and a half to six hours), it is often prepared on-site. To further simplify manual operation, a dispensing cylinder 5 can be used for mixing and temporary preparation. Specifically, the device may include a second peristaltic pump assembly, a first feeding pipe 20 connected to the cavity below the dispensing cylinder 5, and a second feeding pipe 31. (See reference...) Figure 5 , Figure 8 as well as Figure 9As shown, the second peristaltic pump assembly can be configured at this time, including a pump 21 and a positioning box 22 located at the end of the pump 21. The positioning box 22 is provided with an arc-shaped guide groove for the first feed pipe 20 and the second feed pipe 31 to pass through. By providing a disturbance paddle 23 at the output end of the pump 21 that can cyclically squeeze the first feed pipe 20 and the second feed pipe 31 onto the arc-shaped guide groove, the pump 21 can simultaneously drive the first feed pipe 20 and the second feed pipe 31 to pump the leveling adhesive to be mixed into the glue supply cylinder 5 in a peristaltic manner. The material (only applicable to cases where the material is a free-flowing colloid or liquid) is configured such that the cross-sectional area ratio of the first feed pipe 20 and the second feed pipe 31 is the mixing ratio of the raw materials in the pipe. That is, the feeding speed and feeding ratio of the two mixed materials can be controlled by the pump 21 at a single speed. There is no need for manual on-site weighing, which can effectively simplify the operation and avoid mixing errors caused by manual operation. In addition, the degree of human intervention in the colloid mixing process is greatly reduced, which can effectively ensure the safety of operation and avoid contact between the colloid and human skin.
[0024] This invention provides an automatic leveling adhesive application device for bridge bearing installation. After the adhesive in the supply cylinder 5 is used up, to prevent the adhesive residue from hardening in the pipe or supply cylinder 5 and affecting the next use, a cleaning liquid inlet pipe 29 and a circulation pipe 30 connected to the lower cavity of the supply cylinder 5 can be installed on the supply cylinder 5. Both the cleaning liquid inlet pipe 29 and the circulation pipe 30 are equipped with sealing heads to ensure a sealed environment during normal operation. In cleaning mode, the cleaning liquid inlet pipe 29 can be opened to add acetone, other special degumming cleaning agents, or epoxy cleaning agents to dissolve them for easy physical rinsing and removal. To avoid wasting cleaning agents, the interface of the circulation pipe 30 can be matched and connected to the supply pipe 15 or the rotary joint 4. After the cleaning agent and cleaning liquid are added, liquid washing and circulation can be carried out in the lower cavity, continuously flushing the adhesive structure remaining in the pipe. At this time, the agitator 12 rotates synchronously to provide turbulent cleaning. After cleaning, the cleaning liquid is discharged, simultaneously removing the adhesive residue in the pipe and the lower cavity, ensuring that the equipment can be used for a long time.
[0025] This invention provides an automatic leveling adhesive application device for bridge bearing installation. To facilitate adjustment of the final applied adhesive thickness and height, the following reference can be made. Figure 4As shown, a positioning plate 24 is provided below the mounting plate 1, and a grating ruler 25 is provided on the positioning plate 24. At this time, a connecting plate 26 is installed on the bottom surface of the mounting plate 1. By connecting the connecting plate 26 to the reading head of the grating ruler 25, the position and height of the mounting plate 1 can be monitored in real time during the leveling process of the leveling component 2, so that the mounting plate 1 can simultaneously meet the horizontal state and the corresponding height state required, and ultimately ensure the stable shaping of the smoothing adhesive structure.
[0026] In some other embodiments of the automatic leveling adhesive application device for bridge bearing installation provided by this invention, to avoid poor free diffusion of the leveling adhesive to the sides, making it difficult to evenly distribute it in the space below the adhesive application bracket 3 to form a stable support layer, a scraper 27 can be slidably and sealingly installed on the bottom surface of the adhesive application bracket 3 in the vertical direction. (See reference...) Figure 7 as well as Figure 15 As shown, a fourth drive assembly 28 (such as a hydraulic cylinder) for driving the scraper 27 to rise and fall is also provided on the glue application bracket 3. This allows the glue layer to be distributed and leveled outwards by continuously controlling the bottom height of the scraper 27 as the glue flows onto the surface of the support pad. The scraper 27's bottom surface is then flush with the bottom surface of the glue application bracket 3. In some preferred embodiments, the plane of the scraper 27 and the line connecting the glue supply hole and the rotation axis of the glue application bracket 3 can be configured at an acute angle. Figure 7 As shown in the illustration, the adhesive application bracket 3 rotates counterclockwise at this time. The adhesive near the center can be guided by the scraper 27 to continuously spread to the outer edge. The height of the scraper 27 is continuously adjusted according to the change in the thickness of the adhesive until the adhesive fills the entire space below the adhesive application bracket 3.
[0027] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.
Claims
1. An automatic application device for leveling adhesive used in bridge bearing installation, characterized in that, The system includes a mounting plate (1) and a glue supply cylinder (5). The bottom of the mounting plate (1) is provided with several leveling components (2) for leveling the mounting plate (1). A dual-axis tilt sensor is provided on the mounting plate (1). The middle part of the mounting plate (1) is a hollow structure and a glue application bracket (3) is rotatably provided in the middle part of the mounting plate (1). A through hole is provided at the central axis position of the glue application bracket (3). A device that can surround the bolt hole of the support pad stone is provided at the through hole position of the glue application bracket (3). The ring-shaped protective structure has a bottom surface of the glue-applying bracket (3) that is lower than the bottom surface of the mounting plate (1). The glue-applying bracket (3) is provided with a glue supply hole on the outside of the ring-shaped protective structure. The glue supply hole is located close to the ring-shaped protective structure. A rotary joint (4) is installed on the glue supply hole. The glue supply cylinder (5) is used to supply leveling glue to the lower side of the glue-applying bracket (3) through the rotary joint (4). The mounting plate (1) is also provided with a first drive assembly (6) for driving the glue-applying bracket (3) to rotate. The outer ring of the bottom surface of the adhesive application bracket (3) is rotatably provided with an outer limiting shield (7). The annular protective structure is an inner protective shield (8) placed in the through hole and capable of rotating with the through hole. Both the outer limiting shield (7) and the inner protective shield (8) can be placed on the support pad. An air vent is provided on the adhesive application bracket (3) and located near the outer limiting shield (7).
2. The automatic application device for leveling adhesive for bridge bearing installation according to claim 1, characterized in that, An exhaust pipe (9) is inserted into the vent hole. The bottom surface of the exhaust pipe (9) is lower than the bottom surface of the adhesive bracket (3). A threaded interface is provided above the exhaust pipe (9). A detachable sealing cap (10) is provided at the threaded interface of the exhaust pipe (9).
3. The automatic application device for leveling adhesive for bridge bearing installation according to claim 1, characterized in that, A stirring paddle (12) is rotatably installed at the bottom of the cavity of the glue supply cylinder (5). A second driving assembly (11) for driving the stirring paddle (12) to rotate is also installed above the glue supply cylinder (5). The glue supply cylinder (5) is connected to a rotary joint (4) through a feeding pipe (15). A first peristaltic pump (13) for driving the feeding pipe (15) to feed material is also installed at the bottom of the glue supply cylinder (5). Several support rods (14) are installed below the glue supply cylinder (5). The middle section of the feeding pipe (15) is wound around the support rods (14).
4. The automatic application device for leveling adhesive for bridge bearing installation according to claim 3, characterized in that, The glue supply cylinder (5) is slidably equipped with a piston plate (17). The piston plate (17) is slidably sealed with the inner wall of the glue supply cylinder (5) and the main shaft of the stirring paddle (12) to divide the glue supply cylinder (5) into two relatively closed cavities. The upper cavity of the glue supply cylinder (5) is equipped with a third drive assembly (16) for driving the piston plate (17) to rise and fall. The glue supply cylinder (5) is equipped with a first air inlet pipe (18) that communicates with the upper cavity. The piston plate (17) is equipped with a second air inlet pipe (19) that can connect the upper cavity and the lower cavity. Both the first air inlet pipe (18) and the second air inlet pipe (19) are equipped with one-way valves. The gas allowable direction of both one-way valves is pointing towards the discharge direction of the feed pipe (15).
5. The automatic application device for leveling adhesive for bridge bearing installation according to claim 4, characterized in that, It also includes a second peristaltic pump assembly, a first feed pipe (20) and a second feed pipe (31) connected to the cavity below the glue supply cylinder (5). The second peristaltic pump assembly includes a pump (21) and a positioning box (22) located at the end of the pump (21). The positioning box (22) is provided with an arc-shaped guide groove through which the first feed pipe (20) and the second feed pipe (31) pass. The output end of the pump (21) is provided with a disturbance paddle (23) that can cyclically squeeze the first feed pipe (20) and the second feed pipe (31) onto the arc-shaped guide groove. The cross-sectional area ratio of the first feed pipe (20) and the second feed pipe (31) is the mixing ratio of the raw materials in the pipe.
6. The automatic application device for leveling adhesive for bridge bearing installation according to claim 5, characterized in that, The glue supply cylinder (5) is provided with a cleaning liquid delivery pipe (29) and a circulation pipe (30) that can communicate with the cavity below the glue supply cylinder (5). Both the cleaning liquid delivery pipe (29) and the circulation pipe (30) are provided with sealing heads. The interface of the circulation pipe (30) can be matched and connected with the material supply pipe (15) or the rotary joint (4).
7. The automatic application device for leveling adhesive for bridge bearing installation according to claim 1, characterized in that, A positioning plate (24) is provided below the mounting plate (1), and a grating ruler (25) is provided on the positioning plate (24). A connecting plate (26) is installed on the bottom surface of the mounting plate (1), and the connecting plate (26) is connected to the reading head of the grating ruler (25).
8. The automatic application device for leveling adhesive for bridge bearing installation according to claim 1, characterized in that, The bottom surface of the adhesive application bracket (3) is provided with a scraper (27) that slides and seals in the vertical direction. The adhesive application bracket (3) is also provided with a fourth drive assembly (28) for driving the scraper (27) to rise and fall.
9. The automatic application device for leveling adhesive for bridge bearing installation according to claim 8, characterized in that, The plane where the scraper (27) is located and the line connecting the glue supply hole and the rotation axis of the glue application bracket (3) are set at an acute angle.