Steel box girder machining top plate welding device with cooling mechanism
By designing a welding device for the top plate of a steel box girder with a heat dissipation bridge and a circulating cooling system, the problem of uncontrollable heat dissipation rate was solved, enabling flexible heat dissipation adjustment for parts of different sizes and improving the applicability and efficiency of the device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- CHONGQING JUNHAOYU IND CO LTD
- Filing Date
- 2026-04-22
- Publication Date
- 2026-07-24
AI Technical Summary
The heat dissipation rate of the welding device for the top plate of the steel box girder in the existing technology cannot be controlled, and it cannot adapt to the heat dissipation requirements of parts of different sizes, resulting in a limited range of applications.
It adopts a structural design with heat dissipation bridge plate, heat dissipation pipe, solenoid valve, water inlet pipe, water outlet pipe, water filling chamber and water pump. The flow of cooling water is controlled by the on and off of the solenoid valve to achieve regulation of cooling range and cooling efficiency. Combined with the circulating cooling system of hot water chamber, cooling chamber and water supply chamber, precise temperature control is achieved by using semiconductor refrigerator and temperature sensor.
It enables flexible adjustment of the heat dissipation requirements of parts of different sizes, improves the applicability and efficiency of the device, and expands its application range.
Smart Images

Figure CN122442234A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of welding equipment technology, and in particular to a top plate welding device for processing steel box girders with a cooling mechanism. Background Technology
[0002] Currently, steel box girders, also known as steel plate box girders, are a common structural form for long-span bridges. They are generally used on bridges with large spans. Because their shape resembles a box, they are called steel box girders. Steel box girders are made up of a top plate, bottom plate, web, transverse diaphragms, longitudinal diaphragms, and stiffening ribs, all connected by full welding. The top plate is an orthotropic bridge deck composed of a cover plate and longitudinal stiffening ribs. A large amount of heat is generated during welding, which needs to be allowed to dissipate heat naturally. The heat dissipation efficiency of natural resting is low, which means that more time is needed for heat dissipation, thus reducing the construction progress.
[0003] Existing technology CN118616977A provides a top plate welding device for processing steel box girders with a cooling mechanism. When welding is required, the top plate is placed on top of a rotating base plate, and then the steel box girder is placed on the top plate. When left or right movement is needed, motor one is controlled to operate. When motor one is operating, it controls the drive gear to move on the guide rack, thereby moving the sliding seat. Simultaneously, as the sliding seat moves, the lifting welding head under the fixed extension plate on the front side of the sliding seat can be adjusted for translational position. When forward or backward movement is needed, motor two is controlled to operate. During operation, the moving screw is rotated, causing the ball nut assembly to move back and forth on the moving screw. This allows for adjustment of the forward and backward position of the lifting welding head. As welding progresses, heat from the top plate is drawn into the rotating base plate. At this time, the water pump is activated, drawing water from the storage tank and guiding it through the outlet pipe, water pump, diverter pipe, and connecting hose into the cooling water pipe rack. As the water flows within the cooling water pipe rack, it carries away the heat absorbed by the rotating base plate and returns to the storage tank through the return hose and return water pipe, thus dissipating heat from the top plate.
[0004] However, in existing technologies, the heat dissipation rate cannot be controlled, and it is impossible to adjust it according to the heat dissipation requirements of parts of different sizes, resulting in a limited range of applications. Summary of the Invention
[0005] The purpose of this invention is to provide a top plate welding device for processing steel box girders with a cooling mechanism, which aims to solve the technical problem that the heat dissipation rate cannot be controlled in the prior art, and cannot be adjusted for the heat dissipation requirements of parts of different sizes, resulting in a limited range of applications.
[0006] To achieve the above objectives, the present invention employs a top plate welding device for processing steel box girders with a cooling mechanism, comprising a machine body, a heat dissipation bridge plate, heat dissipation pipes, a water inlet pipe, a solenoid valve, a drain pipe, a water filling chamber, and a water pump. The heat dissipation bridge plate is fixedly connected to the machine body and located at the upper end of the machine body. The heat dissipation bridge plate has multiple sets of heat dissipation bridge holes inside. There are multiple sets of heat dissipation pipes, each set of which is fixedly connected to the heat dissipation bridge plate and communicates with the corresponding heat dissipation bridge hole. There are multiple sets of solenoid valves, each set of which... The solenoid valves are connected to the corresponding heat dissipation pipes and are located at one end of the corresponding heat dissipation pipes. The water inlet pipe is connected to multiple sets of solenoid valves and is located at one end of the multiple sets of solenoid valves. The water filling chamber is fixedly connected to the machine body and embedded inside the machine body. The input end of the water pump is connected to the water filling chamber, and the output end of the water pump is connected to the water inlet pipe. The drain pipe is fixedly connected to the heat dissipation bridge plate and is connected to the corresponding heat dissipation bridge holes. The two ends of the drain pipe are connected to the drain pipe and the water filling chamber, respectively.
[0007] The steel box girder processing top plate welding device with cooling mechanism also includes support rods. The number of support rods is multiple sets. Each set of support rods is fixedly connected to the machine body and located at the lower end of the heat dissipation bridge plate.
[0008] The water-filling chamber includes a hot water chamber, a cooling chamber, and a water supply chamber. The cooling chamber is connected to the hot water chamber and is located on one side of the hot water chamber. The water supply chamber is connected to the cooling chamber and is located on one side of the cooling chamber. The water supply chamber is connected to both the hot water chamber and the cooling chamber.
[0009] The hot water chamber includes a first cavity, a first cavity tube, and a first solenoid valve. The first cavity tube is fixedly connected to the first cavity and is located on one side of the first cavity, and the first cavity tube communicates with the first cavity. The first solenoid valve communicates with the first cavity tube and is located at one end of the first cavity tube. The first cavity tube and the first solenoid valve are respectively embedded inside the cooling chamber.
[0010] The refrigeration chamber includes a second cavity, a second cavity tube, a second solenoid valve, and a refrigeration assembly. The second cavity is disposed on one side of the first cavity. The second cavity tube communicates with the second cavity and is located on one side of the second cavity. The second solenoid valve communicates with the second cavity tube and is located on one side of the second cavity tube. The second cavity tube and the second solenoid valve are respectively embedded inside the water supply chamber. The refrigeration assembly is fixedly connected to the second cavity and is embedded at the bottom of the second cavity.
[0011] The refrigeration assembly includes heat transfer plates, fins, a mounting box, and a thermoelectric cooler. The heat transfer plates are fixedly connected to the second cavity and embedded in the lower end of the second cavity. There are multiple sets of fins, each set of fins is fixedly connected to the heat transfer plate and located inside the second cavity. The mounting box is fixedly connected to the heat transfer plate and located at the lower end of the heat transfer plate. There are multiple sets of thermoelectric coolers, each set of thermoelectric coolers is disposed inside the mounting box and located at the lower end of the heat transfer plate.
[0012] The water supply chamber includes a third chamber, a third chamber pipe, a third solenoid valve, and a temperature sensor. The third chamber is located on one side of the second chamber. One end of the third chamber pipe is connected to the first chamber and is located on one side of the first chamber, while the other end of the third chamber pipe is connected to the third chamber. The third solenoid valve is connected to the third chamber pipe and is located inside the third chamber. The temperature sensor is fixedly connected to the third chamber and passes through the third chamber.
[0013] This invention discloses a top plate welding device for processing steel box girders with a cooling mechanism. The device supports and fixes a heat dissipation bridge plate via a machine body. A heat dissipation pipe is connected to a solenoid valve, which in turn connects to a water inlet pipe. The water inlet pipe is connected to a water pump, which is connected to a water filling chamber. A drain pipe connects the heat dissipation bridge plate and the water filling chamber. In use, the welding components are placed on the upper ends of the machine body and the heat dissipation bridge plate, respectively. The water pump is started, pumping cooling water from inside the water filling chamber into the water inlet pipe, and then through the solenoid valve and the... The heat dissipation pipe enters the interior of the heat dissipation bridge plate. The cooling water can be controlled by opening and closing the solenoid valve, thus adjusting the cooling range. The corresponding heat dissipation bridge holes can be connected as needed. After passing through the heat dissipation bridge holes, the cooling water flows back to the water filling chamber through the drain pipe. At the same time, the cooling efficiency can be controlled by adjusting the internal structure of the water filling chamber. The above structure can effectively regulate the cooling efficiency and the cooling range and location to meet different heat dissipation needs, thereby improving the application range and applicability of the device. Attached Figure Description
[0014] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0015] Figure 1 This is a schematic diagram of the top plate welding device for processing steel box girders with a cooling mechanism according to the present invention.
[0016] Figure 2 This is a partial structural schematic diagram of the top plate welding device for processing steel box girders with a cooling mechanism according to the present invention.
[0017] Figure 3 This is a cross-sectional view of the internal structure of the top plate welding device for processing steel box girders with a cooling mechanism according to the present invention.
[0018] Figure 4 This is the invention Figure 3 A cross-sectional view of the AA line structure.
[0019] 101-Main body, 102-Heat dissipation bridge plate, 103-Heat dissipation pipe, 104-Water inlet pipe, 105-Solenoid valve, 106-Drain pipe, 107-Water pump, 108-Heat dissipation bridge hole, 109-Support rod, 110-First cavity, 111-First cavity tube, 112-First solenoid valve, 113-Second cavity, 114-Second cavity tube, 115-Second solenoid valve, 116-Heat transfer plate, 117-Fin, 118-Mounting box, 119-Semiconductor cooler, 120-Third cavity, 121-Third cavity tube, 122-Third solenoid valve, 123-Temperature sensor, 124-Stirring assembly, 125-Servo motor, 126-Stirring shaft, 127-Shaft plate. Detailed Implementation
[0020] Please see Figures 1 to 4This invention provides a top plate welding device for processing steel box girders with a cooling mechanism, comprising a body 101, a heat dissipation bridge plate 102, heat dissipation pipes 103, a water inlet pipe 104, a solenoid valve 105, a drain pipe 106, a water filling chamber, and a water pump 107. The heat dissipation bridge plate 102 is fixedly connected to the body 101 and located at the upper end of the body 101, and the interior of the heat dissipation bridge plate 102 has multiple sets of heat dissipation bridge holes 108. The number of heat dissipation pipes 103 is multiple sets, each set of heat dissipation pipes 103 being fixedly connected to the heat dissipation bridge plate 102 and communicating with the corresponding heat dissipation bridge hole 108. The number of solenoid valves 105 is multiple sets, each set of solenoid valves... 105 is connected to the corresponding heat dissipation pipe 103 and is located at one end of the corresponding heat dissipation pipe 103. The water inlet pipe 104 is connected to multiple sets of solenoid valves 105 and is located at one end of the multiple sets of solenoid valves 105. The water filling chamber is fixedly connected to the body 101 and embedded inside the body 101. The input end of the water pump 107 is connected to the water filling chamber, and the output end of the water pump 107 is connected to the water inlet pipe 104. The drain pipe 106 is fixedly connected to the heat dissipation bridge plate 102 and is connected to the corresponding heat dissipation bridge hole 108. The two ends of the drain pipe 106 are connected to the drain pipe 106 and the water filling chamber, respectively.
[0021] In this embodiment, the body 101 supports and fixes the heat dissipation bridge plate 102. The heat dissipation pipe 103 is connected to the solenoid valve 105, the solenoid valve 105 is connected to the water inlet pipe 104, the water inlet pipe 104 is connected to the water pump 107, the water pump 107 is connected to the water filling chamber, and the drain pipe 106 connects the heat dissipation bridge plate 102 and the water filling chamber. In use, the welded components are placed on the upper ends of the body 101 and the heat dissipation bridge plate 102 respectively, and the water pump 107 is started to operate, so that the water pump 107 can dissipate the heat. The cooling water pump 107 inside the water-filling chamber enters the inlet pipe 104, and then enters the heat dissipation bridge plate 102 through the solenoid valve 105 and the heat dissipation pipe 103. The cooling water can be controlled by opening and closing the solenoid valve 105, and the cooling range can be adjusted. The corresponding heat dissipation bridge holes 108 can be connected as needed. After passing through the heat dissipation bridge holes 108, the cooling water flows back to the water-filling chamber through the drain pipe 106. At the same time, the cooling efficiency can be controlled by adjusting the internal structure of the water-filling chamber.
[0022] Furthermore, the steel box girder processing top plate welding device with cooling mechanism also includes support rods 109. The number of support rods 109 is multiple sets, and each set of support rods 109 is fixedly connected to the machine body 101 and located at the lower end of the heat dissipation bridge plate 102.
[0023] In this embodiment, the heat dissipation bridge plate 102 is supported and fixed by the support rod 109, thereby improving the stability and load-bearing capacity of the heat dissipation bridge plate 102.
[0024] Furthermore, the water-filling chamber includes a hot water chamber, a cooling chamber, and a water supply chamber. The cooling chamber is connected to the hot water chamber and is located on one side of the hot water chamber. The water supply chamber is connected to the cooling chamber and is located on one side of the cooling chamber. The water supply chamber is connected to both the hot water chamber and the cooling chamber.
[0025] In this embodiment, the cooled water after absorbing heat enters the hot water chamber through the drain pipe 106, and then the hot water is introduced into the cooling chamber for cooling to achieve circulating cooling. The cooled water after cooling enters the water supply chamber and is pumped by the water pump 107 for circulation. At the same time, the side of the water supply chamber can also be circulated with hot water from the hot water chamber to achieve the required cooling temperature.
[0026] Furthermore, the hot water chamber includes a first cavity 110, a first cavity tube 111, and a first solenoid valve 112. The first cavity tube 111 is fixedly connected to the first cavity 110 and is located on one side of the first cavity 110, and the first cavity tube 111 communicates with the first cavity 110. The first solenoid valve 112 communicates with the first cavity tube 111 and is located at one end of the first cavity tube 111. The first cavity tube 111 and the first solenoid valve 112 are respectively embedded inside the cooling chamber.
[0027] In this embodiment, hot water is contained in the hot water chamber by the first cavity 110, while the first cavity tube 111 extends into the cooling chamber, and the flow of hot water is controlled by the first solenoid valve 112.
[0028] Furthermore, the refrigeration chamber includes a second cavity 113, a second cavity tube 114, a second solenoid valve 115, and a refrigeration assembly. The second cavity 113 is disposed on one side of the first cavity 110. The second cavity tube 114 communicates with the second cavity 113 and is located on one side of the second cavity 113. The second solenoid valve 115 communicates with the second cavity tube 114 and is located on one side of the second cavity tube 114. The second cavity tube 114 and the second solenoid valve 115 are respectively embedded inside the water supply chamber. The refrigeration assembly is fixedly connected to the second cavity 113 and is embedded at the bottom of the second cavity 113.
[0029] In this embodiment, hot water is placed in the cooling chamber by the second chamber 113 and connected to the water supply chamber through the second chamber pipe 114. The second chamber pipe 114 is connected to the water supply chamber, and the flow rate of the cooling water in the second chamber 113 is regulated by the second solenoid valve 115. At the same time, the cooling component cools the water in the second chamber 113.
[0030] Furthermore, the cooling assembly includes heat transfer plates 116, fins 117, a mounting box 118, and semiconductor coolers 119. The heat transfer plates 116 are fixedly connected to the second cavity 113 and embedded in the lower end of the second cavity 113. There are multiple sets of fins 117, each set of fins 117 is fixedly connected to the heat transfer plates 116 and is located inside the second cavity 113. The mounting box 118 is fixedly connected to the heat transfer plates 116 and is located at the lower end of the heat transfer plates 116. There are multiple sets of semiconductor coolers 119, each set of semiconductor coolers 119 is disposed inside the mounting box 118 and is located at the lower end of the heat transfer plates 116.
[0031] In this embodiment, the mounting box 118 installs and fixes the semiconductor cooler 119, and the cooling end of the semiconductor cooler 119 contacts the heat transfer plate 116. When the semiconductor cooler 119 is running, the low temperature is transferred to the multiple sets of fins 117 through the heat transfer plate 116, and the water in the second cavity 113 is cooled down through the multiple sets of fins 117.
[0032] Furthermore, the water supply chamber includes a third chamber 120, a third chamber pipe 121, a third solenoid valve 122, and a temperature sensor 123. The third chamber 120 is disposed on one side of the second chamber 113. One end of the third chamber pipe 121 is connected to the first chamber 110 and located on one side of the first chamber 110, and the other end of the third chamber pipe 121 is connected to the third chamber 120. The third solenoid valve 122 is connected to the third chamber pipe 121 and located inside the third chamber 120. The temperature sensor 123 is fixedly connected to the third chamber 120 and passes through the third chamber 120.
[0033] In this embodiment, the third chamber 120 in the water supply chamber holds the cooled water, and the third chamber pipe 121 connects the third chamber 120 and the first chamber 110. The third electromagnetic valve 122 controls the opening and closing of the third chamber pipe 121. The third chamber pipe 121 can directly introduce hot water from the first chamber 110 into the third chamber 120. The temperature sensor 123 monitors the temperature in the third chamber 120 in real time, and the water temperature in the third chamber 120 can be automatically adjusted according to the monitored temperature.
[0034] Furthermore, the steel box girder processing top plate welding device with cooling mechanism also includes a stirring assembly 124, the number of which is three sets, and each set of the stirring assembly 124 is respectively embedded in the water-filling cavity.
[0035] In this embodiment, each set of stirring components 124 can stir and mix the water in the first cavity 110, the second cavity 113 and the third cavity 120 respectively, so as to ensure that the water temperature in the first cavity 110, the second cavity 113 and the third cavity 120 is in a uniform state, avoid uneven water temperature, and accelerate the flow rate of the water to accelerate the cooling of the water.
[0036] Furthermore, each set of stirring components 124 includes a servo motor 125, a stirring shaft 126, and a shaft blade 127. The servo motor 125 is disposed at the upper end of the water-filling cavity, and the output end of the servo motor 125 passes through the water-filling cavity. The stirring shaft 126 is fixedly connected to the output end of the servo motor 125 and is located inside the water-filling cavity. There are multiple sets of shaft blades 127, and each set of shaft blades 127 is fixedly connected to the stirring shaft 126 and is located on the outer wall of the stirring shaft 126.
[0037] In this embodiment, the stirring shaft 126 is installed by the servo motor 125, and the stirring shaft 126 is embedded inside the water-filling cavity. The stirring shaft 126 is driven to rotate, and the stirring shaft 126 drives the shaft plate 127 to rotate, and the shaft plate 127 stirs the water in the water-filling cavity.
[0038] The above description discloses only one preferred embodiment of the present invention, and should not be construed as limiting the scope of the present invention. Those skilled in the art will understand that all or part of the processes of the above embodiments can be implemented, and equivalent changes made in accordance with the claims of the present invention are still within the scope of the invention.
Claims
1. A top plate welding device for processing steel box girders with a cooling mechanism, comprising a body, characterized in that, It also includes a heat dissipation bridge plate, heat dissipation pipes, a water inlet pipe, solenoid valves, a drain pipe, a water filling chamber, and a water pump. The heat dissipation bridge plate is fixedly connected to the body and located at the upper end of the body. The heat dissipation bridge plate has multiple sets of heat dissipation bridge holes inside. There are multiple sets of heat dissipation pipes. Each set of heat dissipation pipes is fixedly connected to the heat dissipation bridge plate and communicates with the corresponding heat dissipation bridge hole. There are multiple sets of solenoid valves. Each set of solenoid valves communicates with the corresponding heat dissipation pipe and is located at one end of the corresponding heat dissipation pipe. The water inlet pipe communicates with multiple sets of solenoid valves and is located at one end of each set of solenoid valves. The water filling chamber is fixedly connected to the body and embedded inside the body. The input end of the water pump is connected to the water filling chamber, and the output end of the water pump is connected to the water inlet pipe. The drain pipe is fixedly connected to the heat dissipation bridge plate and communicates with the corresponding heat dissipation bridge holes. The two ends of the drain pipe are connected to the drain pipe and the water filling chamber, respectively.
2. The top plate welding device for processing steel box girders with a cooling mechanism as described in claim 1, characterized in that, The steel box girder processing top plate welding device with cooling mechanism also includes support rods. The number of support rods is multiple sets. Each set of support rods is fixedly connected to the machine body and located at the lower end of the heat dissipation bridge plate.
3. The top plate welding device for processing steel box girders with a cooling mechanism as described in claim 2, characterized in that, The water-filling chamber includes a hot water chamber, a cooling chamber, and a water supply chamber. The cooling chamber is connected to the hot water chamber and is located on one side of the hot water chamber. The water supply chamber is connected to the cooling chamber and is located on one side of the cooling chamber. The water supply chamber is connected to both the hot water chamber and the cooling chamber.
4. The top plate welding device for processing steel box girders with a cooling mechanism as described in claim 3, characterized in that, The hot water chamber includes a first cavity, a first cavity tube, and a first solenoid valve. The first cavity tube is fixedly connected to the first cavity and is located on one side of the first cavity, and the first cavity tube communicates with the first cavity. The first solenoid valve communicates with the first cavity tube and is located at one end of the first cavity tube. The first cavity tube and the first solenoid valve are respectively embedded inside the cooling chamber.
5. The top plate welding device for processing steel box girders with a cooling mechanism as described in claim 4, characterized in that, The refrigeration chamber includes a second cavity, a second cavity tube, a second solenoid valve, and a refrigeration assembly. The second cavity is disposed on one side of the first cavity. The second cavity tube communicates with the second cavity and is located on one side of the second cavity. The second solenoid valve communicates with the second cavity tube and is located on one side of the second cavity tube. The second cavity tube and the second solenoid valve are respectively embedded inside the water supply chamber. The refrigeration assembly is fixedly connected to the second cavity and is embedded at the bottom of the second cavity.
6. The top plate welding device for processing steel box girders with a cooling mechanism as described in claim 5, characterized in that, The cooling assembly includes heat transfer plates, fins, a mounting box, and semiconductor coolers. The heat transfer plates are fixedly connected to the second cavity and embedded in the lower end of the second cavity. There are multiple sets of fins, each set of fins is fixedly connected to the heat transfer plate and located inside the second cavity. The mounting box is fixedly connected to the heat transfer plate and located at the lower end of the heat transfer plate. There are multiple sets of semiconductor coolers, each set of semiconductor coolers is disposed inside the mounting box and located at the lower end of the heat transfer plate.
7. The top plate welding device for processing steel box girders with a cooling mechanism as described in claim 6, characterized in that, The water supply chamber includes a third chamber, a third chamber pipe, a third solenoid valve, and a temperature sensor. The third chamber is located on one side of the second chamber. One end of the third chamber pipe is connected to the first chamber and is located on one side of the first chamber, while the other end of the third chamber pipe is connected to the third chamber. The third solenoid valve is connected to the third chamber pipe and is located inside the third chamber. The temperature sensor is fixedly connected to the third chamber and passes through the third chamber.