A brazing device for a heat exchanger

Abstract

The present invention relates to the technical field of brazing of heat exchangers, and specifically discloses a brazing device for heat exchangers, including: a dispersion mechanism, the dispersion mechanism includes a bearing part and a dispersing part, the bearing parts are provided in a plurality, and a plurality of brazing parts can be supported by the plurality of bearing parts respectively, the dispersing part is connected to the support table, and the dispersing part is respectively connected to the plurality of bearing parts; when the moving table extends out of the brazing furnace, the plurality of bearing parts can be driven by the dispersing part to move, shortening the distance between adjacent two bearing parts, and making the plurality of bearing parts concentrated at the front end of the top of the moving table; when the moving table extends into the brazing furnace, the plurality of bearing parts can be driven by the dispersing part to move, increasing the distance between adjacent two bearing parts; the brazing device for heat exchangers of the present invention can disperse a plurality of brazing parts placed on the moving table through the dispersion mechanism, so as to increase the distance between adjacent two brazing parts, thereby enhancing the subsequent brazing effect on the brazing parts.

Description

Technical Field

[0001] The present invention relates to the technical field of heat exchanger brazing, and particularly relates to a brazing device for a heat exchanger. Background Art

[0002] A heat exchanger is an energy-saving device that realizes heat transfer between materials between two or more fluids at different temperatures. It enables heat to be transferred from a fluid at a higher temperature to a fluid at a lower temperature, so that the fluid temperature reaches the specified index of the process, to meet the requirements of the process conditions. At the same time, it is also one of the main devices for improving energy utilization efficiency. When brazing a heat exchanger, the heat exchanger plates and the brazing filler metal are alternately stacked and compacted, then the moving support table in the vacuum brazing furnace is pulled out, and the compacted heat exchanger plates and the brazing filler metal are placed on the moving support table. Finally, the moving support table is pushed into the vacuum brazing furnace and the furnace door is closed, and the heating tube in the vacuum brazing furnace is used to heat the inside of the brazing furnace, thereby brazing the heat exchanger.

[0003] The Chinese patent document with the publication number CN112008184B discloses a furnace body structure of a high-temperature vacuum brazing furnace that can prevent heat radiation from leaking. It includes a furnace body support. On the furnace body support, a cylindrical furnace body outer shell is fixedly arranged. At the bottom end of the cavity of the cylindrical furnace body outer shell, a furnace liner pushing track is arranged. On the furnace liner pushing track, a cylindrical furnace liner is arranged. The cylindrical furnace liner is arranged on the furnace liner pushing track through the furnace liner support arranged on its furnace liner outer sleeve and the rollers on the furnace liner support. In the cavity of the cylindrical furnace body outer shell between two parallel furnace liner pushing tracks, a brazing tray support is arranged. On the outer wall of the cylindrical furnace body outer shell, an introduction electrode seat and a vacuum extraction valve are respectively arranged. A vacuum extraction pump is connected to the vacuum extraction valve. Inside the furnace liner outer sleeve, reflection screen fixing rods are arranged at equal intervals in an arc. The reflection screen fixing rods are located on the longitudinal section of the cylindrical furnace liner and are radially arranged in a radial direction. At the inner end of the reflection screen fixing rod, a heating molybdenum strip support frame is arranged. Between the heating molybdenum strip support frame and the furnace liner outer sleeve, a cylindrical reflection screen is arranged. On the heating molybdenum strip support frame, an annular heating molybdenum strip is arranged. The inner end of the brazing tray support passes through the cylindrical reflection screen and the annular heating molybdenum strip in sequence and is arranged at the center of the cylindrical furnace liner. On the inner end of the brazing tray support, a brazing tray is arranged. In the brazing tray, a brazing semiconductor device is arranged. On the cylindrical reflection screen, an electrode through hole is arranged. In the electrode through hole, a transfer electrode insulating ceramic sleeve is arranged. In the transfer electrode insulating ceramic sleeve, a transfer electrode is arranged. The outer end of the transfer electrode is electrically connected to the introduction electrode on the introduction electrode seat, and the inner end of the transfer electrode is electrically connected to the annular heating molybdenum strip.

[0004] In use, first pull out the brazing tray support from the furnace body, place the brazed semiconductor device on the brazing tray, finally push the brazing tray support into the furnace body, close the furnace door on the furnace body, and finally start the heater in the furnace body to braze the brazed semiconductor device.

[0005] However, there are still the following deficiencies in the above patent document: when brazing the heat exchanger, the brazed parts formed by alternately stacking and compacting the heat exchanger plates and the brazing filler metal are placed on the moving support table. After multiple brazed parts are laid flat on the moving support table, the distance between adjacent two brazed parts is small. When moving the moving support table into the vacuum brazing furnace for brazing, it is easy to cause uneven heating of the brazed parts, thereby affecting the brazing effect of the brazed parts. Summary of the Invention

[0006] The present invention provides a brazing device for a heat exchanger, aiming to solve the problem in the related art that after multiple brazed parts are laid flat on the moving support table, the distance between adjacent two brazed parts is small, which is easy to cause uneven heating of the brazed parts, thereby affecting the brazing effect of the brazed parts.

[0007] The brazing device for a heat exchanger of the present invention includes a brazing furnace and a support table. The support table includes a guiding seat and a moving table. The guiding seat is connected inside the brazing furnace, and the moving table is slidably connected to the guiding seat in a limited manner. It further includes a dispersing mechanism. The dispersing mechanism includes a bearing part and a dispersing member. The bearing parts are provided in multiple numbers, and multiple bearing parts can respectively support multiple brazed parts. The dispersing member is connected to the support table, and the dispersing member is respectively connected to multiple bearing parts; when the moving table extends out of the brazing furnace, the dispersing member can drive multiple bearing parts to move, shorten the distance between adjacent two bearing parts, and make multiple bearing parts concentrated at the front end of the top of the moving table; when the moving table extends into the brazing furnace, the dispersing member can drive multiple bearing parts to move, increase the distance between adjacent two bearing parts.

[0008] Beneficial effects: When brazing the brazed parts, first, it is necessary to open the brazing furnace, and then gradually pull the moving table out of the brazing furnace. During this process, the dispersing member drives multiple bearing parts to move, shortens the distance between adjacent two bearing parts, and makes multiple bearing parts concentrated at the front end of the top of the moving table. After multiple bearing parts are out of the brazing furnace, place multiple brazed parts on multiple bearing parts respectively, and then push the moving table into the brazing furnace. During this process, the dispersing member can drive multiple bearing parts to move, increase the distance between adjacent two bearing parts, so that multiple bearing parts drive multiple brazed parts to disperse, increase the distance between adjacent two brazed parts, and enhance the brazing effect of the brazed parts by the brazing furnace subsequently.

[0009] Preferably, the dispersing member includes a connecting rod, a moving frame, a movable plate and a rotating shaft. A plurality of connecting rods are provided, and the plurality of connecting rods are respectively connected to a plurality of bearing portions. The moving frame is slidably connected to the bottom of the moving table. A plurality of groups of movable plates are provided. A group of movable plates is provided between adjacent two connecting rods. One end of two movable plates in the same group, which are away from each other, are respectively rotatably connected to the adjacent two connecting rods. The two movable plates in each group are rotatably connected through a rotating shaft, and the rotating shaft is slidably connected in the moving frame.

[0010] The effect is that: the moving frame can move towards or away from the connecting rod. When the moving table moves towards the direction of extending out of the brazing furnace, the moving frame moves towards the direction away from the connecting rod. The moving frame can push the rotating shaft away from the connecting rod. At this time, under the pulling of multiple groups of movable plates, the multiple connecting rods drive the multiple bearing portions to move, so as to shorten the distance between adjacent two bearing portions, facilitating the placement of the brazed parts. When the moving table moves towards the direction of extending into the brazing furnace, the moving frame moves towards the direction close to the connecting rod. The moving frame can push the rotating shaft close to the connecting rod. At this time, under the pushing of multiple groups of movable plates, the multiple connecting rods drive the multiple bearing portions to move, so as to increase the distance between adjacent two bearing portions.

[0011] Preferably, the two movable plates in the same group are arranged in a V shape.

[0012] Preferably, the dispersing member further includes a screw rod, a guide rod, a first flat gear and a toothed plate. The screw rod is rotatably connected to the moving table, and the screw rod penetrates through the moving frame and is threadedly connected thereto. The guide rod is connected to the moving table, and the guide rod penetrates through the moving frame and is slidably connected thereto. The first flat gear is connected to the screw rod, and the toothed plate is connected to the guide seat.

[0013] The effect is that: when the moving table moves towards the direction of extending out of the brazing furnace, the first flat gear can pass by the toothed plate and be meshed with it for transmission, so that the first flat gear drives the screw rod to rotate clockwise, thereby providing power for the moving frame to move towards the direction away from the connecting rod. When the moving table moves towards the direction of extending into the brazing furnace, the first flat gear can pass by the toothed plate and be meshed with it for transmission, so that the first flat gear drives the screw rod to rotate counterclockwise, thereby providing power for the moving frame to move towards the direction close to the connecting rod.

[0014] Preferably, the dispersing mechanism further includes a driving member. The driving member includes a second flat gear, a rotating portion and a third flat gear. A plurality of second flat gears, rotating portions and third flat gears are provided. The plurality of second flat gears are respectively connected to the plurality of connecting rods. The plurality of rotating portions are all rotatably connected to the guide seat. The plurality of third flat gears are respectively connected to the tops of the plurality of rotating portions.

[0015] Preferably, the bottoms of the plurality of rotating parts are all on the same horizontal plane, and the lengths of the plurality of rotating parts increase sequentially from front to back, and the lengths of the connecting rods decrease sequentially from front to back, so that the plurality of second spur gears are respectively arranged corresponding to the plurality of third spur gears.

[0016] The effect is that: by arranging the plurality of second spur gears corresponding to the plurality of third spur gears respectively, after the moving platform completely extends into the brazing furnace, the moving platform stops moving. At this time, the plurality of second spur gears can be respectively meshed and connected with the plurality of third spur gears, so that the rotating part can drive the connecting rod to rotate, so as to drive the bearing part to rotate through the connecting rod, which can avoid affecting the brazing effect of the brazed part to a certain extent due to the different distances between the various parts of the brazed part and the heating part, and then enhance the brazing effect of the brazed part.

[0017] Preferably, the driving member further includes a driving shaft, a first bevel gear and a second bevel gear. The driving shaft is rotatably connected in the brazing furnace, and the driving shaft is rotatably connected with the guide seat. A plurality of first bevel gears and a plurality of second bevel gears are provided. The plurality of first bevel gears are all connected to the driving shaft, and the plurality of second bevel gears are respectively connected to the bottoms of the plurality of rotating parts. The plurality of first bevel gears are respectively meshed and connected with the plurality of second bevel gears.

[0018] The effect is that: when the driving shaft rotates, it can drive the plurality of first bevel gears to be meshed and transmitted with the plurality of second bevel gears respectively, so as to provide power for the rotation of the rotating part.

[0019] Preferably, the driving member further includes a driving source, the driving source is connected to the brazing furnace, and the output shaft of the driving source is rotatably connected to the driving shaft.

[0020] The effect is that: the driving source can provide power for the rotation of the driving shaft.

[0021] Preferably, the plurality of bearing parts are arranged in sequence from front to back.

[0022] Preferably, a guiding through groove is arranged on the top of the moving platform. The bearing part located at the forefront is rotatably connected to the moving platform in a limited manner, and the remaining bearing parts are slidably connected to the guiding through groove on the moving platform in a limited manner.

[0023] The beneficial effects of the present invention are:

[0024] 1. When the moving platform moves in the direction of extending out of the brazing furnace, the moving frame moves in the direction away from the connecting rod. The moving frame can push the rotating shaft away from the connecting rod. At this time, under the pulling of multiple groups of movable plates, the multiple connecting rods drive the multiple bearing parts of the same group to move, so as to shorten the distance between two adjacent bearing parts of the same group, so as to facilitate the placement of the brazed part.

[0025] 2. When the mobile station moves in the direction extending into the brazing furnace, the moving frame moves in the direction approaching the connecting rod. By means of the moving frame, the rotating shaft can be pushed closer to the connecting rod. At this time, under the pushing of multiple groups of movable plates, multiple connecting rods drive multiple bearing parts to move, thereby increasing the distance between two adjacent bearing parts, so as to enhance the brazing effect on the brazed parts in the subsequent process.

[0026] 3. The driving source drives the driving shaft to rotate, and the driving shaft drives multiple first bevel gears to mesh and drive with multiple second bevel gears respectively, thereby driving multiple rotating parts to rotate. When the multiple rotating parts rotate, they drive multiple second spur gears to mesh and drive with multiple first spur gears respectively, and further drive multiple connecting rods to rotate. Thus, multiple connecting rods drive multiple bearing parts to rotate, which can, to a certain extent, avoid the influence on the brazing effect of the brazed parts due to the different distances between various parts of the brazed parts and the heating parts, and further enhance the brazing effect on the brazed parts. Brief Description of the Drawings

[0027] Figure 1 It is a schematic plan view of the present invention.

[0028] Figure 2 It is another schematic plan view of the present invention.

[0029] Figure 3 It is a schematic three-dimensional view of the present invention.

[0030] Figure 4 It is a schematic sectional view of the present invention.

[0031] Figure 5 It is a schematic three-dimensional view of the support table and the dispersion mechanism of the present invention.

[0032] Figure 6 It is a schematic plan view of the support table and the dispersion mechanism of the present invention.

[0033] Figure 7 It is a schematic sectional view of the support table and the dispersion mechanism of the present invention.

[0034] Figure 8 It is another schematic sectional view of the support table and the dispersion mechanism of the present invention.

[0035] Figure 9 It is a schematic three-dimensional view of the bearing part and the dispersion part of the present invention.

[0036] Figure 10 It is a state diagram of the bearing part after dispersion of the present invention.

[0037] Reference Signs:

[0038] 1. Brazing furnace; 11. Furnace body; 12. Base; 13. Heating element; 2. Support table; 21. Guide seat; 22. Support; 23. Moving table; 231. Guide through slot; 3. Dispersion mechanism; 31. Bearing part; 32. Dispersion part; 321. Connecting rod; 322. Moving frame; 323. Movable plate; 324. Rotating shaft; 325. Screw; 326. Guide rod; 327. First spur gear; 328. Rack; 33. Driving part; 331. Second spur gear; 332. Rotating part; 333. Third spur gear; 334. Driving shaft; 335. First bevel gear; 336. Second bevel gear; 337. Driving source. Detailed implementation mode

[0039] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present invention, but should not be construed as limiting the present invention.

[0040] As Figures 1 to 10 shown, the brazing equipment for heat exchangers of the present invention includes a brazing furnace 1, a support table 2 and a dispersion mechanism 3. The heat exchanger plates and the brazing filler metal are alternately stacked and compacted to form a brazed part. The brazing furnace 1 is used to heat and braze the brazed part. The support table 2 is used to support multiple brazed parts. The dispersion mechanism 3 can disperse the brazed parts laid flat on the support table 2 to increase the distance between adjacent two brazed parts, so as to enhance the brazing effect of the brazed parts by the brazing furnace 1 subsequently.

[0041] During use, first pull out the support table 2 from the brazing furnace 1, and lay multiple brazed parts on the top of the support table 2. The multiple brazed parts are divided into two groups, and the two groups of brazed parts are arranged left and right. The multiple brazed parts in the same group are arranged in sequence from front to back. After laying, push the support table 2 into the brazing furnace 1. During this process, the dispersion mechanism 3 disperses the multiple brazed parts in the same group to increase the distance between adjacent two brazed parts in the same group, so as to enhance the brazing effect of the brazed parts by the brazing furnace 1 subsequently.

[0042] As Figure 1 and Figure 2 shown, the brazing furnace 1 includes a furnace body 11, a base 12, a heating element 13 and a furnace door. The base 12 is connected to the bottom of the furnace body 11 and is used to support the furnace body 11. The heating element 13 is connected to the furnace body 11. The heating element 13 can generate heat to raise the temperature in the furnace body 11 to the temperature required for the brazed part, so as to provide a suitable temperature environment for the brazing process of the brazed part. The furnace door is installed at the front end of the furnace body 11 and is used to close the front end of the furnace body 11 to prevent the heat in the furnace body 11 from overflowing outward from the front end during the brazing process of the brazed part, so as to ensure the stability of the internal temperature of the furnace body 11.

[0043] In use, first open the furnace door, then pull out the support table 2 from the furnace body 11, place the two groups of brazed parts on the support table 2, then push the support table 2 with the two groups of brazed parts into the furnace body 11, and close the furnace door. Heat the temperature in the furnace body 11 to the set temperature through the heating element 13 in the furnace body 11, so as to realize the brazing operation of the brazed parts.

[0044] As Figures 2 to 5 shown, the support table 2 includes a guide seat 21, a support 22 and a moving table 23. A plurality of supports 22 are provided, and the plurality of supports 22 are all connected to the bottom of the guide seat 21. The guide seat 21 is connected to the inner wall of the furnace body 11 through the plurality of supports 22. The guide seat 21 can be supported by the supports 22. The moving table 23 is connected in a limited sliding manner to the top of the guide seat 21. The moving table 23 is used to support the two groups of brazed parts. The moving table 23 can extend out of the furnace body 11 to facilitate placing the two groups of brazed parts on the top of the moving table 23.

[0045] When placing the brazed parts, first pull the moving table 23 to make part of the moving table 23 extend out of the furnace body 11, and the guide seat 21 guides and supports the moving table 23. Then lay the two groups of brazed parts on the moving table 23, and finally push the moving table 23 back into the furnace body 11.

[0046] As Figures 2 to 10As shown in the figure, the dispersion mechanism 3 includes a bearing part 31, a dispersing part 32 and a driving part 33. The multiple bearing parts 31 are divided into two groups. The two groups of bearing parts 31 are arranged left and right. The multiple bearing parts 31 in the same group are arranged in sequence from front to back. Two guiding through grooves 231 are provided on the moving platform 23. The bearing parts 31 at the forefront in the two groups of bearing parts 31 are both limited and rotatably connected to the moving platform 23. Except for the bearing parts 31 at the forefront in the two groups of bearing parts 31, the remaining bearing parts 31 are respectively limited and slidably connected in the two guiding through grooves 231 on the moving platform 23. The two groups of bearing parts 31 can respectively support the two groups of brazing parts. The dispersing part 32 is connected between the bearing part 31 and the support platform 2. There are two dispersing parts 32. The two dispersing parts 32 can respectively disperse the two groups of bearing parts 31, so that the multiple bearing parts 31 in the same group move, increasing the distance between two adjacent bearing parts 31 in the same group, thereby realizing the dispersion of the two groups of brazing parts to enhance the subsequent brazing effect of the brazing parts. There are two driving parts 33. The two driving parts 33 are both connected to the support platform 2. After the moving platform 23 drives the two groups of brazing parts into the brazing furnace 1, the distance between two adjacent bearing parts 31 in the same group increases. At this time, the two driving parts 33 are started, and the two groups of driving parts 33 can respectively drive the two groups of bearing parts 31 to rotate, so that each bearing part 31 can rotate along its own central axis, thereby driving the multiple brazing parts to rotate, which can, to a certain extent, avoid the influence on the brazing effect of the brazing parts due to the different distances between the various parts of the brazing parts and the heating part 13, and further enhance the brazing effect of the brazing parts.

[0047] The two groups of brazing parts are respectively placed on the two groups of bearing parts 31. When the moving platform 23 loaded with the two groups of brazing parts moves towards the inside of the furnace body 11, the two groups of dispersing parts 32 respectively disperse the two groups of bearing parts 31, so that the distance between two adjacent bearing parts 31 in the same group increases. After the moving platform 23 completely enters the furnace body 11, the temperature inside the furnace body 11 rises through the heating part 13, thereby brazing the brazing parts. During this process, the two groups of driving parts 33 respectively drive the two groups of bearing parts 31 to rotate, so that each bearing part 31 can rotate along its own central axis, thereby driving the multiple brazing parts to rotate.

[0048] Continue to refer to Figures 2 to 10As shown in the figure, the dispersing member 32 includes a connecting rod 321, a moving frame 322, a movable plate 323, a rotating shaft 324, a screw rod 325, a guide rod 326, a first spur gear 327, and a toothed plate 328. A plurality of connecting rods 321 are provided, and the plurality of connecting rods 321 are respectively connected to a plurality of bearing parts 31 in the same group. A groove is provided at the bottom of the moving table 23, and the moving frame 322 is slidably connected to the groove at the bottom of the moving table 23. A plurality of groups of movable plates 323 are provided, and a group of movable plates 323 is provided between adjacent two connecting rods 321. The number of each group of movable plates 323 is two. The two movable plates 323 in the same group are arranged in a V shape, and the ends of the two movable plates 323 in the same group away from each other are respectively rotatably connected to adjacent two connecting rods 321. The two movable plates 323 in each group are rotatably connected through a rotating shaft 324, and a plurality of rotating shafts 324 are all slidably connected in the moving frame 322;

[0049] When the moving frame 322 moves towards the direction close to the connecting rod 321, the moving frame 322 can push the rotating shaft 324 close to the connecting rod 321. At this time, under the push of a plurality of groups of movable plates 323, the plurality of connecting rods 321 respectively drive the plurality of bearing parts 31 in the same group to move, so as to increase the distance between two adjacent bearing parts 31 in the same group, so as to enhance the subsequent brazing effect on the brazed parts;

[0050] When the moving frame 322 moves towards the direction away from the connecting rod 321, the moving frame 322 can push the rotating shaft 324 away from the connecting rod 321. At this time, under the pull of a plurality of groups of movable plates 323, the plurality of connecting rods 321 respectively drive the plurality of bearing parts 31 in the same group to move, so as to shorten the distance between two adjacent bearing parts 31 in the same group;

[0051] The screw rod 325 is rotatably connected to the groove at the bottom of the moving table 23, and the screw rod 325 penetrates through the moving frame 322 and is threadedly connected thereto. The guide rod 326 is connected to the groove at the bottom of the moving table 23, and the guide rod 326 penetrates through the moving frame 322 and is slidably connected thereto. The guide rod 326 can guide the moving frame 322. The first spur gear 327 is connected to the screw rod 325, and the toothed plate 328 is connected to the guide seat 21. When the moving table 23 slides on the guide seat 21, the first spur gear 327 can pass by the toothed plate 328, and the first spur gear 3 to drive the screw rod 325 to rotate.

[0052] Specifically, when the mobile station 23 is pulled out from the furnace body 11, the first flat gear 327 passes through the toothed plate 328, and the first flat gear 327 meshes with the toothed plate 328 for driving transmission, so that the first flat gear 327 drives the screw 325 to rotate clockwise. When the screw 325 rotates clockwise, it can drive the moving frame 322 to move along the guide rod 326, so that the moving frame 322 moves away from the connecting rod 321. Through the moving frame 322, the rotating shaft 324 can be pushed away from the connecting rod 321. At this time, under the pulling of multiple groups of movable plates 323, multiple connecting rods 321 drive multiple bearing parts 31 in the same group to move, so as to shorten the distance between two adjacent bearing parts 31 in the same group. After the front end part of the mobile station 23 is moved out of the furnace body 11, the two groups of bearing parts 31 can be concentrated at the front end of the mobile station 23. After the two groups of bearing parts 31 are separated from the furnace body 11, the pulling operation of the mobile station 23 is stopped, so as to shorten the pulling length of the mobile station 23 and improve the placing efficiency of the brazed workpieces;

[0053] After the two groups of brazed workpieces are respectively placed on the two groups of bearing parts 31, the mobile station 23 is pushed into the furnace body 11. When the first flat gear 327 passes through the toothed plate 328, the first flat gear 327 meshes with the toothed plate 328 for driving transmission, so that the first flat gear 327 drives the screw 325 to rotate counterclockwise. When the screw 325 rotates counterclockwise, it can drive the moving frame 322 to move along the guide rod 326, so that the moving frame 322 moves towards the connecting rod 321. At this time, the rotating shaft 324 is pushed close to the connecting rod 321 through the moving frame 322. At this time, under the pushing of multiple groups of movable plates 323, multiple connecting rods 321 drive multiple bearing parts 31 in the same group to move, so as to increase the distance between two adjacent bearing parts 31 in the same group.

[0054] Continue to refer to Figures 2 to 10 As shown in the figure, the driving member 33 includes a second flat gear 331, a rotating portion 332, a third flat gear 333, a driving shaft 334, a first bevel gear 335, a second bevel gear 336 and a driving source 337. A plurality of second flat gears 331 are provided, and the plurality of second flat gears 331 are respectively connected to a plurality of connecting rods 321 on the same dispersing member 32. The number of the rotating portions 332 and the third flat gears 333 is equal to the number of the second flat gears 331. The plurality of rotating portions 332 are respectively rotatably connected to a plurality of supports 22, and the plurality of third flat gears 333 are respectively connected to the tops of the plurality of rotating portions 332. The bottoms of the plurality of rotating portions 332 are on the same horizontal plane, and the lengths of the plurality of rotating portions 332 increase sequentially from front to back, and the lengths of the connecting rods 321 decrease sequentially from front to back, so that the plurality of second flat gears 331 can be respectively arranged corresponding to the plurality of third flat gears 333;

[0055] During the process of the mobile station 23 entering the furnace body 11, under the action of the dispersing member 32, the distance between two adjacent bearing parts 31 in the same group increases. After the spur gear one 327 on the dispersing member 32 separates from the toothed plate 328, multiple bearing parts 31 in the same group stop moving on the mobile station 23. After the mobile station 23 completely enters the furnace body 11, the mobile station 23 stops moving. At this time, the spur gears two 331 on multiple connecting rods 321 are respectively meshed and connected with the spur gears three 333 on multiple rotating parts 332;

[0056] The drive shaft 334 is rotatably connected to the rear side of the furnace body 11. The front end of the drive shaft 334 extends into the furnace body 11 and sequentially penetrates through multiple supports 22. The drive shaft 334 is rotatably connected to the supports 22. Multiple bevel gears one 335 and multiple bevel gears two 336 are provided. Multiple bevel gears one 335 are all connected to the drive shaft 334. Multiple bevel gears two 336 are respectively connected to the bottoms of multiple rotating parts 332. Multiple bevel gears one 335 are respectively meshed with multiple bevel gears two 336. The drive source 337 is connected to the rear side of the furnace body 11. The drive source 337 is a motor. The output shaft of the drive source 337 is rotatably connected to the drive shaft 334;

[0057] After the spur gears two 331 on multiple connecting rods 321 are respectively meshed and connected with the spur gears three 333 on multiple rotating parts 332, start the drive source 337 to drive the drive shaft 334 to rotate. The drive shaft 334 drives multiple bevel gears one 335 to be respectively meshed and transmitted with multiple bevel gears two 336, thereby driving multiple rotating parts 332 to rotate. When multiple rotating parts 332 rotate, they drive multiple spur gears two 331 to be respectively meshed and transmitted with multiple spur gears one 327, thereby driving multiple connecting rods 321 to rotate. Furthermore, multiple connecting rods 321 drive multiple bearing parts 31 in the same group to rotate, which can, to a certain extent, avoid the influence on the soldering effect of the soldered parts due to the different distances between various parts of the soldered parts and the heating part 13, so as to enhance the soldering effect of the soldered parts.

[0058] Working principle:

[0059] When placing the brazing parts, first pull the moving table 23 to make part of the moving table 23 extend out of the furnace body 11, and the guiding seat 21 guides and supports the moving table 23. When the first flat gear 327 passes by the toothed plate 328, the first flat gear 327 meshes with the toothed plate 328 for transmission, so that the first flat gear 327 drives the screw 325 to rotate clockwise. When the screw 325 rotates clockwise, it can drive the moving frame 322 to move along the guiding rod 326, so that the moving frame 322 moves in a direction away from the connecting rod 321. Through the moving frame 322, the rotating shaft 324 can be pushed away from the connecting rod 321. At this time, under the pulling of multiple groups of movable plates 323, multiple connecting rods 321 drive multiple bearing parts 31 of the same group to move, so as to shorten the distance between two adjacent bearing parts 31 of the same group. Then, place multiple brazing parts on two groups of bearing parts 31, so as to divide multiple brazing parts into two groups.

[0060] After the brazing parts are placed, push the moving table 23 into the furnace body 11. When the first flat gear 327 passes by the toothed plate 328, the first flat gear 327 meshes with the toothed plate 328 for transmission, so that the first flat gear 327 drives the screw 325 to rotate counterclockwise. When the screw 325 rotates counterclockwise, it can drive the moving frame 322 to move along the guiding rod 326, so that the moving frame 322 moves in a direction close to the connecting rod 321. At this time, the moving frame 322 pushes the rotating shaft 324 close to the connecting rod 321. When multiple rotating shafts 324 move, they push multiple groups of movable plates 323, so that multiple groups of movable plates 323 push multiple connecting rods 321 to move along the length direction of the moving table 23, and multiple connecting rods 321 drive multiple bearing parts 31 of the same group to move, so as to increase the distance between two adjacent bearing parts 31 of the same group.

[0061] After the first flat gear 327 on the dispersing part 32 is separated from the toothed plate 328, multiple bearing parts 31 of the same group stop moving on the moving table 23. After the moving table 23 completely enters the furnace body 11, the moving table 23 stops moving. At this time, the second flat gears 331 on multiple connecting rods 321 are respectively meshed and connected with the third flat gears 333 on multiple rotating parts 332.

[0062] Close the furnace door at the front end of the furnace body 11 and start the heating element 13. Through the heating element 13, the temperature in the furnace body 11 is raised to the set temperature, so as to braze the brazing parts.

[0063] Start the drive source 337 to drive the drive shaft 334 to rotate. The drive shaft 334 drives multiple first bevel gears 335 to be respectively meshed and transmitted with multiple second bevel gears 336, so as to drive multiple rotating parts 332 to rotate. When multiple rotating parts 332 rotate, they drive multiple second flat gears 331 to be respectively meshed and transmitted with multiple first flat gears 327, and further drive multiple connecting rods 321 to rotate, so that multiple connecting rods 321 drive multiple bearing parts 31 of the same group to rotate.

[0064] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A brazing device for a heat exchanger, comprising a brazing furnace and a support table. The support table includes a guiding seat and a moving table. The guiding seat is connected inside the brazing furnace, and the moving table is connected to the guiding seat in a limited sliding manner. It is characterized in that, It further includes a dispersion mechanism, which includes a bearing part and a dispersing part. The bearing parts are provided in multiple numbers, and multiple brazing workpieces can be supported respectively by the multiple bearing parts. The dispersing part is connected to the support table, and the dispersing part is respectively connected to the multiple bearing parts; When the moving table extends out of the brazing furnace, the dispersing part can drive the multiple bearing parts to move, shorten the distance between adjacent two bearing parts, and make the multiple bearing parts concentrated at the front end of the top of the moving table; When the moving table extends into the brazing furnace, the dispersing part can drive the multiple bearing parts to move, and increase the distance between adjacent two bearing parts; The dispersing part includes connecting rods, a moving frame, movable plates, rotating shafts, screw rods, guide rods, a first flat gear and a toothed plate. The connecting rods are provided in multiple numbers, and the multiple connecting rods are respectively connected to the multiple bearing parts. The moving frame is slidably connected to the bottom of the moving table. The movable plates are provided in multiple groups, and a group of movable plates is arranged between adjacent two connecting rods. The mutually remote ends of the two movable plates in the same group are respectively rotatably connected to the adjacent two connecting rods. The two movable plates in each group are rotatably connected through a rotating shaft, and the rotating shaft is slidably connected in the moving frame; The two movable plates in the same group are arranged in a V shape; The screw rod is rotatably connected to the moving table, the screw rod penetrates through the moving frame and is threadedly connected thereto. The guide rod is connected to the moving table, the guide rod penetrates through the moving frame and is slidably connected thereto. The first flat gear is connected to the screw rod, and the toothed plate is connected to the guide seat.

2. The brazing apparatus for a heat exchanger according to claim 1, characterized in that The dispersion mechanism further includes a driving part, which includes a second flat gear, a rotating part and a third flat gear. The second flat gears, the rotating parts and the third flat gears are all provided in multiple numbers. The multiple second flat gears are respectively connected to the multiple connecting rods. The multiple rotating parts are all rotatably connected to the guide seat. The multiple third flat gears are respectively connected to the tops of the multiple rotating parts.

3. The brazing apparatus for a heat exchanger according to claim 2, characterized in that, The bottoms of the multiple rotating parts are all on the same horizontal plane, and the lengths of the multiple rotating parts increase sequentially from front to back. The lengths of the connecting rods decrease sequentially from front to back, so that the multiple second flat gears are respectively arranged corresponding to the multiple third flat gears.

4. The brazing apparatus for a heat exchanger according to claim 2, characterized in that, The driving part further includes a driving shaft, a first bevel gear and a second bevel gear. The driving shaft is rotatably connected in the brazing furnace, the driving shaft is rotatably connected to the guide seat. The first bevel gears and the second bevel gears are all provided in multiple numbers. The multiple first bevel gears are all connected to the driving shaft. The multiple second bevel gears are respectively connected to the bottoms of the multiple rotating parts. The multiple first bevel gears are respectively meshed and connected to the multiple second bevel gears.

5. The brazing apparatus for a heat exchanger according to claim 4, characterized in that, The driving part further includes a driving source, which is connected to the brazing furnace, and the output shaft of the driving source is rotatably connected to the driving shaft.

6. The brazing apparatus for a heat exchanger according to claim 1, characterized in that, The multiple bearing parts are arranged in sequence from front to back.

7. The brazing apparatus for a heat exchanger according to claim 6, characterized in that, A guiding through groove is provided at the top of the moving table. The bearing part at the foremost end is rotatably connected to the moving table with a limit, and the remaining bearing parts are slidably connected to the guiding through groove on the moving table with a limit.

Images