Muffle-free brazing chamber

Abstract

The utility model provides a muffle-free brazing chamber which comprises a plurality of sealing box bodies arranged side by side, every two adjacent sealing box bodies are fixedly connected, each sealing box body at least comprises an inner chamber body and an outer shell body arranged on the outer side of the inner chamber body, and a hollow sealing cavity is formed between the inner chamber body and the outer shell body. A heat preservation layer is arranged on the inner wall of the inner chamber body, the inner chamber body is further provided with a sealing rolling shaft conveying device, and a rolling shaft of the sealing rolling shaft conveying device sequentially penetrates through the inner chamber body, the sealing cavity and the outer shell and then is in static sealing connection with the outer shell. The sealing rolling shaft conveying device is arranged in the brazing chamber to convey materials, the whole mesh belt originally penetrating through the whole brazing furnace is replaced, repeated heating and freezing of the mesh belt are avoided, and energy consumption and equipment maintenance cost are reduced. A heat preservation layer and a heating element are further arranged in the brazing chamber, an existing heating muffle is removed, and manufacturing and maintaining cost is further reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of industrial brazing furnace, concretely relates to a brazing chamber without muffle. BACKGROUND

[0002] At present, the mesh belt of the conventional brazing mesh belt conveying heating furnace is composed of an upper muffle sealing section and an open return section to form a mesh belt circulating operation closed loop, the upper muffle sealing section is composed of a preheating section muffle, a heating section muffle and a cooling section muffle, the open return section is composed of a driven roller, a feeding section, a discharging section, a driven roller, a return roller and a driving roller, and the mesh belt is driven in the open section. Since the temperature of the heating section muffle is above 550 DEG C, the entire mesh belt must be selected according to the working condition of the heating section, which results in a high price of the mesh belt, and the mesh belt must be replaced after about four months, resulting in a large cost of the mesh belt of the brazing mesh belt conveying heating furnace. CONTENT OF THE UTILITY MODEL

[0003] In order to overcome the defects of the prior art, the utility model aims at providing a brazing chamber without muffle.

[0004] The utility model provides a brazing chamber without muffle, including a plurality of parallelly arranged sealed box, two adjacent sealed box are fixedly connected between, at least including inner chamber and the shell that sets up in the outer side of inner chamber body of each sealed box body, the sealed cavity with hollow between the inner chamber body and the shell, the inner wall of inner chamber body is provided with the heat preservation layer, and the inner chamber body is also provided with sealed roller axle conveying device, the roller axle of sealed roller axle conveying device penetrates in turn the inner chamber body, sealed cavity, shell and is connected with static sealing between the shell.

[0005] The utility model also has the following optional features.

[0006] Optionally, the lower part of the sealed roller axle conveying device is provided with a nitrogen input pipe.

[0007] Optionally, the inner chamber is also provided with a heating element, which is installed on the heat preservation layer and used for heating the brazing material in the brazing chamber.

[0008] Optionally, the sealed roller axle conveying device includes multiple pairs of roller racks, multiple roller axles and a driving motor, both ends of each roller axle are provided with sealed bearing seats between the heat preservation layer, chain wheel transmission mechanisms are arranged between the end portions of every two adjacent roller axles, and the main shaft of the driving motor is in transmission connection with the end portion of one of the roller axles.

[0009] Optionally, the shaft ends of the roller axles all extend into the sealed cavity, the chain wheel transmission mechanisms are arranged between the sealed bearing seats and the shell, and the end portion of one of the roller axles extends out of the shell and is in transmission connection with the driving motor.

[0010] Optionally, the driving motor is provided with one or more.

[0011] Optionally, the driving motor is provided with multiple, each sealed box body is provided with at least one driving motor correspondingly, and the main shaft of each driving motor is in transmission connection with the shaft end of one of the rollers of the corresponding sealed box body.

[0012] Optionally, the main shaft of the driving motor is provided with a driving sprocket, and the shaft head position of the first roller extending out of the outer shell is provided with a driven sprocket, and the driving sprocket is connected with the driven sprocket through a chain.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. The utility model discloses a sealed roller conveying device is arranged in the brazing chamber, and the material is conveyed through multiple sealed roller conveying devices, replaces the original whole net belt of penetrating through the brazing furnace, avoids repeatedly heating and freezing to the net belt, and reduces energy consumption and equipment maintenance cost.

[0015] 2. The utility model also sets up the heat preservation layer and heating element in the brazing chamber, removes the existing heating muffle, reduces manufacturing and maintenance cost, and makes the temperature in the brazing chamber relatively stable.

[0016] In order to make the above content of the utility model more obvious and easy to understand, the following preferred embodiments are given, and the detailed description is given as follows in combination with the drawings. DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the embodiment of the utility model, the drawings needed to be used in the embodiment will be simply introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and other design schemes and drawings can be obtained according to the drawings without paying creative labor for the person skilled in the art.

[0018] Figure 1 It is the structure schematic diagram of the brazing chamber without muffle of the utility model;

[0019] Figure 2 It is the structure schematic diagram of the brazing chamber without muffle of the utility model; Figure 1

[0020] Figure 3 It is the structure schematic diagram of the brazing chamber without muffle of the utility model; Figure 1

[0021] Reference signs:

[0022] 1. Sealed box body;

[0023] ​​2, outer shell;

[0024] 3, inner chamber;

[0025] 4, sealed cavity;

[0026] 5, nitrogen input pipe;

[0027] 6, thermal insulation layer;

[0028] 7, heating element;

[0029] 8, sealed roller conveying device; 801, roller frame; 802, roller; 803, drive motor; 804, sealed bearing seat; 805, chain wheel transmission mechanism;

[0030] 9, brazing material.

[0031] The utility model will be made further detailed description in combination with the drawings and examples. DETAILED DESCRIPTION

[0032] Example 1

[0033] Reference Figure 1 and Figure 3 The utility model discloses an embodiment proposes a muffleless brazing chamber, including a plurality of side -by -side arrangement sealed box 1, two sealed box 1 between adjacent fixed connection, each sealed box 1 includes at least inner chamber 3 and the outer shell 2 of setting at the outer side of inner chamber 3, sealed cavity 4 has between the inner chamber 3 and outer shell 2, the inner wall of inner chamber 3 is provided with thermal insulation layer 6, and inner chamber 3 is also provided with sealed roller conveying device 8, and the roller 802 of sealed roller conveying device 8 sequentially penetrates inner chamber 3, sealed cavity 4, outer shell 2 after with sealed cavity 4, outer shell 2 between static sealing connection.

[0034] In use, brazing material 9 enters the brazing chamber, and in the process of being conveyed through the brazing chamber by the sealed roller conveying device 8, the heating element 7 heats the brazing chamber, the nitrogen input pipe 5 arranged below the sealed roller conveying device 8 is provided with a plurality of small holes, nitrogen is dispersed in the brazing chamber through the small holes on the nitrogen input pipe 5, and the brazing material 9 is heated by the heating element 7 while being conveyed by the sealed roller conveying device 8 and is protected by nitrogen and is not oxidized until the brazing material 9 is sent out of the brazing chamber.

[0035] Example 2

[0036] Reference Figure 1 , Figure 2 and Figure 3On the basis of embodiment 1, the sealed roller conveying device 8 comprises a plurality of pairs of roller frames 801, a plurality of rollers 802, and a driving motor 803, and a sealed bearing seat 804 is arranged between each roller 802 and the thermal insulation layer 6 at both ends of each roller 802, and a sprocket transmission mechanism 805 is arranged between the end portions of every two adjacent rollers 802, and the main shaft of the driving motor 803 is in transmission connection with the end portion of one of the rollers 802.

[0037] The sealed roller conveying device 8 is arranged in the brazing chamber, and the same end of each roller 802 in the sealed roller conveying device 8 is provided with two sprockets, and the sprockets on every two adjacent rollers 802 are connected by a transmission chain to form the sprocket transmission mechanism 805, and each roller 802 is synchronously connected through the sprocket transmission mechanism 805 in sequence, and one end of the first roller 802 in the sealed roller conveying device 8 extends out of the brazing chamber, and when the driving motor 803 located outside the brazing chamber drives the first roller 802 on one side to rotate through the sprocket and the transmission chain, each roller 802 rotates synchronously.

[0038] Embodiment 3

[0039] Reference Figure 1 , Figure 2 and Figure 3 On the basis of embodiment 2, a sealed cavity 4 is further arranged between the outer shell of the brazing chamber and the thermal insulation layer 6, the shaft ends of the rollers 802 extend into the sealed cavity 4, the sprocket transmission mechanism 805 is arranged between the sealed bearing seat 804 and the outer shell, and the end portion of one of the rollers 802 extends out of the outer shell and is in transmission connection with the driving motor 803.

[0040] The brazing chamber has a sealed outer shell and a sealed thermal insulation layer 6, each pair of roller frames 801 is arranged on the outer shell of the brazing chamber, and the two ends of the rollers 802 rotate through the thermal insulation layer 6 and are arranged on the roller frames 801, wherein the sprocket transmission mechanism 805 is located in the sealed cavity 4 formed between the outer shell of the brazing chamber and the thermal insulation layer 6, so as to avoid nitrogen leakage as much as possible.

[0041] Embodiment 4

[0042] Reference Figure 1 On the basis of embodiment 3, a plurality of driving motors 803 are arranged, the plurality of driving motors 803 are equidistantly spaced, and the main shaft of each driving motor 803 is in transmission connection with the shaft end of one of the rollers 802.

[0043] Since the brazing chamber is relatively long, the distribution range of the sealed roller conveying device 8 is also relatively long, which requires that a driving motor 803 be arranged every four meters, and each driving motor 803 drives a plurality of rollers 802 to rotate, so as to improve the conveying efficiency of the sealed roller conveying device 8 on the brazing material 9.

[0044] The above merely describes a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims. The components and structures not described in detail in the present embodiment are common components and structures or common means in the industry, which are not described here.

Claims

1. A muffle-free brazing chamber comprising a plurality of sealed boxes arranged side by side, two adjacent sealed boxes being fixedly connected, characterized in that, Each of the sealed box bodies comprises an inner chamber body and an outer shell body arranged outside the inner chamber body, a hollow sealed cavity is arranged between the inner chamber body and the outer shell body, an insulation layer is arranged on the inner wall of the inner chamber body, and a sealed roller conveying device is further arranged on the inner chamber body, the rollers of the sealed roller conveying device sequentially penetrate the inner chamber body, the sealed cavity and the outer shell body and are in static sealing connection with the outer shell body.

2. The muffle-free brazing chamber of claim 1, wherein, A nitrogen input pipe is arranged below the sealed roller conveying device.

3. The muffleless brazing chamber of claim 1, wherein, A heating element is further arranged in the inner chamber body, the heating element is installed on the insulation layer and is used for heating the brazing materials in the brazing chamber.

4. The muffle-free brazing chamber of claim 1, wherein, The sealed roller conveying device comprises a plurality of pairs of roller frames, a plurality of rollers and a driving motor, a sealing bearing seat is arranged between each of the rollers and the insulation layer at both ends of the roller, a chain wheel transmission mechanism is arranged between the end portions of each two adjacent rollers, and the main shaft of the driving motor is in transmission connection with the end portion of one of the rollers.

5. The muffle-free brazing chamber of claim 4, wherein, The shaft ends of the rollers all extend into the sealed cavity, the chain wheel transmission mechanism is arranged between the sealing bearing seat and the outer shell body, and the end portion of one of the rollers extends out of the outer shell body and is in transmission connection with the driving motor.

6. The muffle-free brazing chamber of claim 4, wherein, The driving motor is provided with one or more.

7. The muffle-free brazing chamber of claim 4, wherein, The driving motor is provided with a plurality of driving motors, each sealed box body is correspondingly provided with at least one driving motor, and the main shaft of each driving motor is in transmission connection with the shaft end of one of the rollers of the corresponding sealed box body.

8. The muffle-free brazing chamber of claim 4, wherein, A driving chain wheel is arranged on the main shaft of the driving motor, a driven chain wheel is installed at the shaft head position of the first roller extending out of the outer shell body, and the driving chain wheel is connected with the driven chain wheel through a chain.

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