Split type combined vacuum tank body for multi-element co-permeation of super-long reinforcing steel bar

Abstract

The invention provides a split type combined vacuum tank for multielement co-permeation of super-long steel bars, which comprises a plurality of unit tanks, the plurality of unit tanks are sequentially connected to form a complete tank, the joint of every two adjacent unit tanks is provided with a child-mother opening which is matched with the child-mother opening, the child opening of one unit tank is inserted into the mother opening of the other unit tank, and the child-mother opening of the other unit tank is connected with the child-mother opening of the other unit tank. The secondary opening is in interference fit with the primary opening; chucks are arranged at the adjacent ends of the two unit tanks, the two chucks are connected through a clamping ring, the clamping ring wraps the outer sides of the chucks, and the two chucks are in interference fit with the clamping ring. The sealing device has the beneficial effects that random combination can be achieved according to the length of materials, and meanwhile the sealing performance is considered. Due to the split design, the transportation size is reduced, and the transportation problem of an ultra-long tank is solved; double positioning is carried out through the child-mother opening structure, and the sealing performance of the tank opening can be effectively improved through the child-mother opening connecting mode; the unit tanks are connected through the chucks and the clamping rings, the chucks and the clamping rings are in interference fit to be clamped and then fixed, and installation efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of metal surface treatment, and particularly relates to a split type combined vacuum tank for multi-element co-diffusion of super-long steel bars. BACKGROUND

[0002] In order to realize the multi-element alloy co-diffusion of steel bars such as wires, profiles and strips, the existing technology designs a tank body located on the outer side of the steel bar, and the steel bar is placed in the tank body and sent into a heating furnace to complete the multi-element alloy co-diffusion. However, the traditional tank body has the following problems: The length of the traditional tank body is insufficient to adapt to the processing work of super-long threaded steel bars, and the traditional tank body is often a square tank body or a circular tank body. The square tank body is difficult to rotate, and the circular tank body is easy to cause the steel bars inside to be wound. The traditional tank body is mostly flange connected, and the positioning is difficult and the operation is complex, so it is not easy to realize automatic production. The bolt neck used for flange connection is easy to break under a large shear force, and the risk of production accidents is large. Moreover, the traditional sealing is basically achieved by clamping thermal cotton between the contact surfaces. When the tank body is deformed, the sealing effect is very poor. SUMMARY

[0003] Therefore, the present application aims to provide a split type combined vacuum tank for multi-element co-diffusion of super-long steel bars, so as to at least solve some of the above technical problems.

[0004] To achieve the above-mentioned purposes, the technical scheme of the present application is as follows: A split type combined vacuum tank for multi-element co-diffusion of super-long steel bars, comprising a plurality of unit tanks, the plurality of unit tanks being connected in sequence to form a complete tank body; The connection part of the two adjacent unit tanks is provided with a matched female and male joint, the female joint of one unit tank is inserted into the male joint of another unit tank, and the female joint and the male joint are interference fit. The end parts of the two unit tanks are both provided with chucks, and the two chucks are connected through a clamping ring, the clamping ring is wrapped on the outside of the chucks, and the two chucks and the clamping ring are interference fit.

[0005] Further, a spline is fixed on the outer wall of the female joint, a spline groove corresponding to the spline is opened on the inner wall of the male joint, and the spline is inserted into the spline groove.

[0006] Further, the outer wall of the female joint and the inner wall of the male joint are both conical surface structures, the female joint converges inwardly to the end away from the unit tank, and the male joint converges inwardly to the end close to the unit tank.

[0007] Further, the unit tank comprises: An inner container, which is a polygonal structure; A shell, which is a circular structure; The shell is wrapped outside the inner container, and the shell is fixedly connected with the inner container.

[0008] Further, the sub-port extends from one end of the inner container to the outside of the shell; The female port is arranged on the connecting piece, and the connecting piece is fixedly arranged on the end of the shell. The inner container of the unit tank arranged at both ends is closed away from the end of the connecting part.

[0009] Further, the closed end of the unit tank is connected with a vacuum valve, one end of the vacuum valve is communicated with the inner container, and the other end is communicated with a vacuum pump.

[0010] Further, one end face of the chuck is an inclined plane, and the other end face is a flat surface, and the flat surfaces of the two chucks are tightly pressed against each other; The two sides of the inner wall of the clasp ring are tightly pressed against the inclined end faces of the two chucks.

[0011] Further, a ring-shaped sealing groove is arranged on the flat surface, a sealing cavity is formed between the sealing grooves on the two flat surfaces which are tightly pressed against each other, a graphite packing is arranged in the sealing cavity, and the graphite packing is in interference fit with the sealing cavity.

[0012] Further, for the two chucks connected with each other, one is arranged outside the sub-port, and the other is arranged outside the female port, and when the sub-port and the female port are in interference fit, the two chucks are tightly pressed against each other.

[0013] Further, a plurality of discharge ports are arranged on the side wall of the unit tank, a sealing cover is arranged in the discharge port, an L-shaped groove is arranged on the inner wall of the discharge port, a sliding block corresponding to the L-shaped groove is fixedly arranged on the outer wall of the sealing cover, and the sliding block is located in the L-shaped groove.

[0014] Compared with the prior art, the split type combined vacuum tank body for multi-element co-permeation of super-long steel bars has the following beneficial effects: The length of the material can be arbitrarily combined while considering the sealing performance. The split design reduces the transportation size and solves the transportation problem of the super-long tank; Through the sub-port and female port structure, progressive double positioning is realized to ensure that the coaxiality is less than or equal to 0.1mm / m. This sub-port and female port connection method can also effectively improve the sealing performance of the tank port. The unit tank is connected with the chuck and the clasp ring, and the chuck and the clasp ring are fixed after being clamped through interference fit, so that the installation efficiency is higher than that of the traditional flange connection method. The polygonal inner container and the circular shell ensure that the tank body is easy to spin, and the steel bars in the inner container will not be entangled with each other during the spinning process. BRIEF DESCRIPTION OF DRAWINGS

[0015] The accompanying drawings, which constitute part of the present invention, are provided to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are provided to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings: Figure 1 This is a schematic diagram of the overall structure of the vacuum tank according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the internal structure of the vacuum tank according to an embodiment of the present invention; Figure 3 The embodiment of the present invention Figure 1 Schematic diagram of the structure on the left at B in the middle; Figure 4 The embodiment of the present invention Figure 1 Schematic diagram of the structure on the right side of B in the middle; Figure 5 The embodiment of the present invention Figure 1 Schematic diagram of the structure at A in the middle; Figure 6 The embodiment of the present invention Figure 1 Schematic diagram of the cross-sectional structure at point B.

[0016] Description of reference numerals: 1. Unit tank; 11. Inner tank; 111. Sub-mouth; 112. Spline; 12. Shell; 13. Connector; 131. Female mouth; 132. Flower groove; 14. Chuck; 141. Sealing groove; 15. Snap ring; 16. Vacuum valve; 17. Feeding port; 171. Sealing cover. DETAILED DESCRIPTION

[0017] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0018] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0019] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0020] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0021] like Figures 1-6 As shown: a split combined vacuum tank for multi-element co-infiltration of super-long steel bars, comprising a plurality of unit tanks 1, wherein the plurality of unit tanks 1 are sequentially connected to form a complete tank; The connection between two adjacent unit tanks 1 is provided with matching male and female ports. The male port 111 of one unit tank 1 is plugged into the female port 131 of the other unit tank 1. The male port 111 and the female port 131 are interference fit. The adjacent ends of the two unit tanks 1 are both provided with chucks 14 , and the two chucks 14 are connected by a snap ring 15 , which is wrapped around the outside of the chuck 14 , and the two chucks 14 and the snap ring 15 are interference fit.

[0022] A complete tank body is formed by interconnecting multiple unit tanks 1, so that the tank body can adapt to the processing of steel materials such as wires, profiles, bars, etc. with a length of ≥6m. The unit tanks 1 can be combined according to the length of the workpiece, and the applicability is strong.

[0023] A spline 112 is fixedly provided on the outer wall of the sub-opening 111 , and a flower groove 132 corresponding to the spline 112 is opened on the inner wall of the female opening 131 , and the spline 112 is inserted into the flower groove 132 .

[0024] The outer wall of the sub-opening 111 and the inner wall of the female opening 131 are both conical structures, and the sub-opening 111 is inwardly converging toward the end away from the unit tank 1 , while the female opening 131 is inwardly converging toward the end close to the unit tank 1 .

[0025] Through the spline 112 and the conical surface structure in the male and female joints, double positioning is carried out to ensure that the coaxiality is ≤0.1mm / m. This male and female joint connection method can also effectively improve the sealing of the tank mouth.

[0026] The unit tank 1 includes: An inner liner 11, wherein the inner liner 11 is a polygonal structure; The housing 12 is a circular structure; The shell 12 is wrapped around the outer side of the inner liner 11 , and the shell 12 is fixedly connected to the inner liner 11 .

[0027] The sub-port 111 is formed by extending from one end of the inner container 11 to the outside of the shell 12; The female port 131 is arranged on the connecting piece 13, and the connecting piece 13 is fixedly arranged on the end of the shell 12; The end of the inner container 11 of the unit tank 1 away from the connecting part is sealed.

[0028] The shell 12 in a circular structure and the inner container 11 in a polygonal structure are combined, which effectively reduces the relative sliding and winding of the threaded steel workpiece in the tank. The circular structure of the shell 12 solves the rotation problem, and the polygonal structure of the inner container 11 solves the problem of winding and relative sliding of the threaded steel. The relative sliding is reduced by increasing the full contact and friction between the workpiece and the auxiliary material. In this embodiment, the inner container 11 in a polygonal structure is in a hexagonal structure. The inner container 11 in a hexagonal structure is easy to process, and the structure is low in customization cost.

[0029] In some embodiments, a rib plate for preventing winding and sliding is additionally arranged inside the inner container 11 in a polygonal structure. The inner container 11 can be replaced by an octagonal or other polygonal structure. It should be noted that the polygonal structure is at least pentagonal, and the square inner container 11 cannot solve the problem of winding and relative sliding of the threaded steel.

[0030] The sealed end of the unit tank 1 is connected with a vacuum valve 16. One end of the vacuum valve 16 is in communication with the inner container 11, and the other end is in communication with a vacuum pump.

[0031] In some embodiments, under the premise of ensuring the sealing of the tank body, the inner container 11 is connected with a vacuum flange, and the interface is a sealing quick connection of enhanced negative pressure type.

[0032] One end face of the chuck 14 is an inclined plane, and the other end face is a flat surface. The flat surfaces of the two chucks 14 are tightly pressed against each other. The inner walls of the clamping ring 15 tightly press the end faces of the two chucks 14 which are inclined.

[0033] In some embodiments, the clamping ring 15 is composed of two arc-shaped structural members. One end of the arc-shaped structural member is hinged to one end of the other arc-shaped structural member. The other end of the arc-shaped structural member is provided with a bolt, and the other end of the other arc-shaped member is provided with a nut corresponding to the bolt. The bolt and the nut are threadedly connected, and the inner walls of the two arc-shaped structural members tightly press the outer wall of the clamping ring 15.

[0034] The flange inclined surface and the inner inclined surface of the clamping ring 15 are connected in a way. After being clamped by interference fit, the single bolt is fixed, which improves the installation efficiency by nearly 3 times compared with the traditional flange connection method.

[0035] The plane is provided with annular sealing grooves 141, and the sealing cavities are formed between the two mutually abutting sealing grooves 141, and the graphite packing is arranged in the sealing cavities and is in interference fit with the sealing cavities.

[0036] The flange is provided with graphite packing sealing grooves 141 on the inner side, and the tight sealing is similar to the hydraulic sealing ring, so that the sealing effect is increased.

[0037] For the two mutually connected chucks 14, one is arranged around the outer side of the female port 131, and the other is arranged around the outer side of the female port 131, and when the male port 111 is in interference fit with the female port 131, the two chucks 14 abut each other.

[0038] The side wall of the unit tank 1 is provided with a plurality of discharge ports 17, the discharge ports 17 are provided with sealing covers 171, the inner wall of the discharge ports 17 is provided with L-shaped grooves, the outer wall of the sealing covers 171 is fixedly provided with sliding blocks corresponding to the L-shaped grooves, and the sliding blocks are located in the L-shaped grooves.

[0039] When it is needed to open the discharge port 17, the sealing cover 171 needs to be taken out, the sealing cover 171 is rotated to make the sliding blocks on the outer wall of the sealing cover 171 slide, the sliding blocks first slide in the horizontal part of the L-shaped groove, and then the sliding blocks enter the vertical part of the L-shaped groove and cannot continue to move, at this time, the sealing cover 171 is lifted, the sealing cover 171 drives the sliding blocks to slide in the vertical part, and then the sliding blocks move out of the L-shaped groove; when it is needed to close the discharge port 17, the opening operation is performed in reverse.

[0040] In some embodiments, in order to complete the temperature measurement in the tank, two ways are proposed, one is that the temperature measuring body (high temperature resistant) in the tank sends signals to the outside to monitor the temperature in the tank in real time, and the other is that a mirror hole is formed in the side wall of the tank body, and the temperature is measured directly by infrared or laser irradiation.

[0041] The two methods solve the problem that the traditional temperature measurement is mostly the contact type thermocouple which is inserted into the furnace by 80-150 mm, and cannot measure the temperature at the center of the tank, and the poor temperature measurement accuracy leads to poor temperature control accuracy.

[0042] In order to solve the problem that the traditional tank body has small metal heat conduction surface and low heat conduction efficiency, heat conduction columns are uniformly arranged in the cavity between the shell 12 and the inner container 11, the heat conduction area is increased, and the heat transfer efficiency is improved.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit the present application; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can still be modified, or some or all of the technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should be covered in the scope of the claims and the description of the present application.

[0044] The above only describes the preferred embodiments of the present application, and is not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A split-type combined vacuum tank for multi-element co-infiltration of ultra-long steel bars, comprising a plurality of unit tanks (1), wherein the plurality of unit tanks (1) are sequentially connected to form a complete tank, characterized in that: The connection between two adjacent unit tanks (1) is provided with matching male and female ports, the male port (111) of one unit tank (1) is plugged into the female port (131) of the other unit tank (1), and the male port (111) and the female port (131) are interference-fitted; The adjacent ends of the two unit tanks (1) are both provided with chucks (14), and the two chucks (14) are connected by a clasp (15). The clasp (15) is wrapped around the outside of the chuck (14), and the two chucks (14) and the clasp (15) are interference fit.

2. The split combined vacuum tank for multi-element co-infiltration of ultra-long steel bars according to claim 1, characterized in that: A spline (112) is fixedly provided on the outer wall of the sub-opening (111), and a flower groove (132) corresponding to the spline (112) is opened on the inner wall of the female opening (131), and the spline (112) is inserted into the flower groove (132).

3. The split-type combined vacuum tank for multi-element co-infiltration of ultra-long steel bars according to claim 1, characterized in that: The outer wall of the sub-opening (111) and the inner wall of the main opening (131) are both conical structures, and the sub-opening (111) is inwardly converging toward the end away from the unit tank (1), while the main opening (131) is inwardly converging toward the end adjacent to the unit tank (1).

4. The split combined vacuum tank for multi-element co-infiltration of ultra-long steel bars according to claim 1 is characterized in that: The unit tank (1) comprises: An inner liner (11), wherein the inner liner (11) is a polygonal structure; A housing (12), wherein the housing (12) is a circular structure; The shell (12) is wrapped around the outside of the inner container (11), and the shell (12) is fixedly connected to the inner container (11).

5. The split combined vacuum tank for multi-element co-infiltration of ultra-long steel bars according to claim 4, characterized in that: The sub-opening (111) is formed by extending one end of the inner container (11) toward the outside of the shell (12); the female opening (131) is provided on the connecting piece (13); and the connecting piece (13) is fixed to the end of the shell (12); The inner container (11) of the unit tank (1) arranged at both ends is sealed at the ends away from the connection.

6. The split combined vacuum tank for multi-element co-infiltration of ultra-long steel bars according to claim 4, characterized in that: A vacuum valve (16) is provided at the sealed end of the unit tank (1), one end of the vacuum valve (16) is connected to the inner tank (11), and the other end is connected to the vacuum pump.

7. The split combined vacuum tank for multi-element co-penetration of ultra-long steel bars according to claim 1, characterized in that: One end face of the chuck (14) is an inclined surface, and the other end face is a plane. The planes of the two chucks (14) are pressed against each other, and the two sides of the inner wall of the clamping ring (15) are pressed against the inclined end faces of the two chucks (14).

8. The split combined vacuum tank for multi-element co-penetration of super-long steel bars according to claim 7, characterized in that: An annular sealing groove (141) is formed on the plane, and a sealing cavity is formed between the sealing grooves (141) on the two planes pressed against each other. A graphite packing is arranged in the sealing cavity, and the graphite packing is interference-fitted with the sealing cavity.

9. The split combined vacuum tank for multi-element co-infiltration of ultra-long steel bars according to claim 1, characterized in that: For the two mutually connected chucks (14), one is arranged around the outside of the sub-opening (111), and the other is arranged around the outside of the female opening (131). When the sub-opening (111) and the female opening (131) are interference-fitted, the two chucks (14) press against each other.

10. The split combined vacuum tank for multi-element co-infiltration of super-long steel bars according to claim 1, characterized in that: The side wall of the unit tank (1) is provided with a plurality of discharge ports (17), a sealing cover (171) is provided in the discharge port (17), an L-shaped groove is provided on the inner wall of the discharge port (17), and a slider corresponding to the L-shaped groove is fixedly provided on the outer wall of the sealing cover (171), and the slider is located in the L-shaped groove.

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