Hoisting mechanism for workpiece quenching and rapid water entry

Abstract

The utility model discloses a hoisting mechanism for quenching a workpiece and quickly entering water. The hoisting mechanism comprises a quenching basket and a hoisting frame, concave spigots or convex spigots are formed in the outer walls of the two sides of the quenching basket in the horizontal direction; the hanging bracket is provided with a horizontal channel, and the horizontal channel is used for enabling the quenching basket to horizontally move into the hanging bracket from the outside of the hanging bracket; convex spigots or concave spigots matched with the concave spigots or the convex spigots on the outer wall of the quenching basket are arranged on the inner walls of the hanging brackets on the two sides of the horizontal channel; and when the quenching basket horizontally moves into the hanging bracket from the outside of the hanging bracket, the concave seam allowance or the convex seam allowance on the outer wall of the quenching basket is matched with the convex seam allowance or the concave seam allowance of the hanging bracket, so that the hanging connection of the quenching basket and the hanging bracket is realized. According to the hoisting mechanism disclosed by the utility model, after the heating furnace trolley is driven out, the quenching basket can be automatically and quickly hooked with the hanging bracket without manual hooking, so that the aim of quickly hoisting the quenching basket into water is fulfilled.

Description

Technical Field

[0001] The utility model relates to the technical field of quenching process equipment, and particularly to a hoisting mechanism for quickly immersing workpieces in water during quenching. Background Technique

[0002] Quenching is a common heat treatment process technology. It is a metal heat treatment process in which steel is heated to 30-50 degrees Celsius above the AC3 line, held for a period of time, and then quickly immersed in a quenching medium. According to the different quenching media, it can be divided into water quenching, oil quenching, salt bath, organic modified medium and other quenching processes. The implementation of this process is generally completed in the following steps: First, the workpieces are stacked on a quenching basket in a certain way; then the quenching basket together with the workpieces is hoisted onto the trolley of an industrial heating furnace, the trolley is driven into the furnace chamber and the furnace door is closed; the workpieces are heated and held according to the process curve; after the heating and holding are completed, the furnace door is opened and the flat car is driven out, and a crane with a previously hung lifting tool is used to hoist the quenching basket and the workpieces together, move to above the quenching pool, and release the hook to immerse all the workpieces in the quenching medium (water) to quickly cool the workpieces; after the cooling reaches the process temperature, the workpieces are hoisted out of the quenching medium, and the process is considered completed.

[0003] During the implementation process, the time from opening the furnace door to completely immersing the workpieces in the quenching medium is the key control point of this process implementation. Because the temperature of the high-temperature workpieces drops rapidly after opening the furnace door, if the temperature of the workpieces has dropped below the AC3 temperature before they are immersed in the quenching medium, the ideal quenching effect cannot be achieved. Therefore, generally, this time should be completed within 90 seconds. At present, the main method used is to use a quenching hanging basket with four ear holes on the side to load and stack the workpieces, and then after the heating and holding are completed, the trolley is driven out, and then a hanging frame with four suspension chains and four hooks at the lower ends of the suspension chains is used. Four workers each align with an ear hole and hang the hooks into it. After all four ear holes are hung in place, the crane is started to hoist the four-ear hanging basket and the workpieces to the quenching pool and immerse them in the quenching medium.

[0004] However, this solution has the following problems: First, four people are needed to assist in hooking; second, when hooking, the crane needs to be adjusted left and right and up and down to ensure that the center of the crane hook is consistent with the center of the quenching hanging basket, which is very time-consuming; third, the hanging states of the four independent hooks and the hanging holes are required to be consistent. If the hooking position is unreasonable, for example, the depth of one hook is not enough, it is very easy to cause a safety accident of the whole furnace of high-temperature workpieces tipping over; fourth, when hooking, the personnel are close to the high-temperature workpieces, and it is harmful to the human body if the hook cannot be hung properly for a long time.

[0005] In view of this, this application is specifically proposed. Content of the Utility Model

[0006] The technical problem to be solved by the utility model is that the connection between the hanger and the hanging basket is currently achieved by cooperating with a hook and a lifting ear, which requires multiple people to operate at the same time, is time-consuming and labor-intensive, and is prone to inconsistent hanging states, resulting in accidents such as tipping of the workpiece. The utility model aims to provide a lifting mechanism for the workpiece to be quenched and quickly put into water. When the heating furnace trolley is driven out, the hanging basket can be automatically and quickly connected to the lifting device without manual hooking, so as to achieve the purpose of rapid lifting and entering the water.

[0007] The utility model is realized by the following technical solutions:

[0008] A hoisting mechanism for quickly quenching a workpiece into water, comprising a quenching basket and a hanger;

[0009] The outer walls of both sides of the quenching basket are provided with concave stoppers or convex stoppers in the horizontal direction;

[0010] The hanger has a horizontal passage for horizontal movement of the quench basket from outside the hanger into the hanger;

[0011] The inner walls of the hangers on both sides of the horizontal channel are provided with convex stoppers or concave stoppers that match the concave stoppers or convex stoppers on the outer wall of the quenching basket;

[0012] When the quenching basket moves horizontally from the outside of the hanger to the inside of the hanger, the concave stop or convex stop on the outer wall of the quenching basket cooperates with the convex stop or concave stop of the hanger to achieve the hanging of the quenching basket and the hanger.

[0013] The utility model provides a hoisting mechanism in which, when the heating furnace trolley is moved out, the quenching basket can be automatically and quickly connected to the hanger without manual hooking, so as to achieve the purpose of rapid hoisting into water.

[0014] The hoisting mechanism of the utility model frees the original four hooking personnel from the high temperature environment, and this method only requires one furnace worker to complete the entire quenching work; the utility model adopts the concave and convex stopper hanging method, which is more reliable than the traditional manual chain hanging method; there is no need to adjust the crane left and right and up and down to find the center of the quenching basket, and it is only necessary to place the hanger in a suitable position in front of the heating furnace in advance. When the quenching basket is opened outward with the heating furnace trolley, it can automatically cooperate with the hanger hanging. After the trolley is opened into place, the quenching basket and the hanger are hung in place. The crane can be directly started to lift the hanger, the quenching basket and the workpiece together and transfer them to the water pool, which greatly reduces the time consumption and can also improve the balance of the overall hoisting to avoid the workpiece tipping.

[0015] In a specific embodiment, support columns are respectively provided on both sides below the hanger, and the support columns are provided so that the height of the hanger can match the height of the quenching basket on the trolley.

[0016] First, design a quenching basket that conforms to the furnace cavity size according to the specifications of the heating furnace, and design the size of the convex or concave stop of the quenching basket with reference to the weight of the workpiece; design the structure and size of the hanging bracket according to the size of the heating furnace trolley and the quenching basket, and design the size and fixed position of the support column for placing the hanging bracket; then manufacture the above-mentioned quenching basket, hanging bracket and support column, install the support column and move the quenching basket back and forth on the heating furnace trolley to ensure that the hanging bracket is placed in the appropriate position on the support column and mark it.

[0017] Then, during implementation, stack the workpieces on the quenching basket as required and lift the workpieces and the quenching basket together onto the heating furnace trolley and place them correctly; heat according to the process requirements; after heating, let the crane lift the hanging bracket to the support column and place it correctly according to the pre-marked position; open the furnace door of the heating furnace and move the trolley to the pre-set position. At this time, the hanging bracket and the quenching basket are completed with the hanging connection; the crane hooks up to lift the hanging bracket, the quenching basket and the workpieces, and the crane moves so that the hanging bracket, the quenching basket and the workpieces are positioned directly above the quenching pool; release the hook to completely immerse the hanging bracket, the quenching basket and the workpieces in the quenching medium, and cool to the required temperature.

[0018] In a specific embodiment, the support column has a telescopic structure, and the height of the support column can be adjusted through the telescopic structure to facilitate the adjustment of the placement height of the hanging bracket.

[0019] In a specific embodiment, a lifting ring is provided at the top of the hanging bracket.

[0020] In a specific embodiment, the hanging bracket includes two groups of parallel vertical suspension rods. The upper ends of the two groups of vertical suspension rods are connected by a suspension plate, and a horizontal channel is formed between the two groups of vertical suspension rods. Each group of vertical suspension rods includes two or more parallel suspension rods. Convex or concave stops matching the concave or convex stops on the outer wall of the quenching basket are provided on the inner sides of the lower ends of the two groups of vertical suspension rods. The utility model uses the suspension rods and the suspension plate to form a hanging bracket, which not only ensures that it has sufficient structural strength to lift the quenching basket and the workpieces, but also minimizes the weight of the hanging bracket.

[0021] In a specific embodiment, a reinforcing rod is further provided between the suspension rod and the suspension plate, which can further strengthen the strength of the hanging bracket.

[0022] In a specific embodiment, the hanging bracket is made of stainless steel material, which ensures the strength and high temperature resistance of the hanging bracket.

[0023] In a specific embodiment, a support flat plate is provided at the upper end of the support column, which increases the force-bearing area of the support column and the area of the region where the hanging bracket can be placed, facilitating the adjustment of the position of the hanging bracket placed on the support column.

[0024] In a specific embodiment, concave stop grooves are provided on both sides of the outer wall of the quenching basket, and convex stop grooves are provided on the inner walls of both sides of the hanging bracket.

[0025] In a specific embodiment, the outer edge of the convex stop groove is in a rounded corner structure.

[0026] Compared with the prior art, the present utility model has the following advantages and beneficial effects:

[0027] 1. For a hoisting mechanism for rapid water entry of workpieces during quenching provided by an embodiment of the present utility model, after the heating furnace trolley moves out, the quenching basket can be automatically and quickly hooked to the hanging bracket without manual hooking, so as to achieve the purpose of rapid hoisting and water entry.

[0028] 2. For a hoisting mechanism for rapid water entry of workpieces during quenching provided by an embodiment of the present utility model, the concave and convex stop groove hooking method is more reliable than the traditional manual hanging chain hooking; there is no need to adjust the crane left and right and up and down to find the center of the quenching basket. Only need to place the hanging bracket in a suitable position in front of the heating furnace in advance. When the quenching basket moves out with the heating furnace trolley and reaches the position, the hooking of the quenching basket and the hanging bracket is achieved. Directly start the crane, and the hanging bracket, the quenching basket and the workpiece can be lifted together and transferred to the water tank. The time consumption is greatly reduced, and the overall hoisting balance can also be improved, avoiding the situation of workpiece tipping.

[0029] 3. For a hoisting mechanism for rapid water entry of workpieces during quenching provided by an embodiment of the present utility model, the original 4 hooking personnel are freed from the high-temperature environment, and only one furnace worker is needed to complete the entire quenching work in this way. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present utility model, the following will briefly introduce the drawings required to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0031] Figure 1 It is a working schematic diagram of the hoisting mechanism provided by an embodiment of the present utility model;

[0032] Figure 2 It is a working schematic diagram of the hoisting mechanism provided by an embodiment of the present utility model;

[0033] Figure 3 It is a side view of the hooking of the hoisting mechanism provided by an embodiment of the present utility model;

[0034] Figure 4 It is a partial enlarged view of the hooking structure of the quenching basket and the hanging bracket provided by an embodiment of the present utility model;

[0035] Figure 5 This is a schematic diagram of the hanging ring structure provided by the embodiment of the present utility model.

[0036] Marks in the attached drawings and corresponding part names:

[0037] 1 - Support column, 2 - Quenching basket, 3 - Hanging frame, 4 - Hanging ring. Specific embodiments

[0038] To make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below in conjunction with the embodiments and the attached drawings. The illustrative embodiments and descriptions of the present utility model are only used to explain the present utility model and do not limit the present utility model.

[0039] In the following description, a large number of specific details are set forth in order to provide a thorough understanding of the present utility model. However, it is obvious to those of ordinary skill in the art that: these specific details do not have to be used to implement the present utility model. In other embodiments, well-known structures are not specifically described to avoid confusing the present utility model.

[0040] Throughout the specification, references to "one embodiment", "embodiment", "one example" or "example" mean that a particular feature, structure, or characteristic described in connection with the embodiment or example is included in at least one embodiment of the present utility model. Thus, the phrases "one embodiment", "embodiment", "one example" or "example" appearing throughout the specification do not necessarily all refer to the same embodiment or example. Additionally, the particular features, structures, or characteristics may be combined in any suitable combination and / or sub-combination in one or more embodiments or examples. Moreover, those of ordinary skill in the art should understand that the diagrams provided herein are for illustrative purposes only and are not necessarily drawn to scale. The term "and / or" used herein includes any and all combinations of one or more of the associated listed items.

[0041] In the description of the present utility model, the orientation or positional relationships indicated by the terms "front", "rear", "left", "right", "upper", "lower", "vertical", "horizontal", "high", "low", "inner", "outer", etc. are based on the orientation or positional relationships shown in the attached drawings, and are only for the convenience of describing the present utility model 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 thus should not be construed as limiting the protection scope of the present utility model.

[0042] Embodiment

[0043] As Figures 1-5As shown in the figure, a hoisting mechanism for rapid water entry of workpieces during quenching provided by an embodiment of the present utility model includes a quenching basket 2 and a hanging frame 3;

[0044] Concave or convex stops are arranged along the horizontal direction on the outer walls on both sides of the quenching basket 2;

[0045] The hanging frame 3 has a horizontal channel for the quenching basket 2 to move horizontally from the outside of the hanging frame 3 into the hanging frame 3;

[0046] Convex or concave stops matching the concave or convex stops on the outer wall of the quenching basket 2 are arranged on the inner walls of the hanging frame 3 on both sides of the horizontal channel;

[0047] During the process of the quenching basket 2 moving horizontally from the outside of the hanging frame 3 into the hanging frame 3, the concave or convex stops on the outer wall of the quenching basket 2 cooperate with the convex or concave stops on the hanging frame 3 to realize the connection between the quenching basket 2 and the hanging frame 3.

[0048] In the hoisting mechanism of the present utility model, after the heating furnace trolley moves out, the quenching basket can be automatically and quickly connected to the hanging frame without manual hooking, so as to achieve the purpose of rapid hoisting and water entry.

[0049] The hoisting mechanism of the present utility model liberates the original 4 hooking personnel from the high-temperature environment. This method only requires one furnace worker to complete the entire quenching work; the concave and convex stop connection method adopted by the present utility model is more reliable than the traditional manual hanging chain connection; there is no need to adjust the crane left and right and up and down to find the center of the quenching basket. Just place the hanging frame in a suitable position in front of the heating furnace in advance. When the quenching basket moves outwards with the heating furnace trolley, it can automatically cooperate with the hanging frame. After the trolley moves into place, the connection between the quenching basket and the hanging frame is in place. Just start the crane, and the hanging frame, the quenching basket and the workpiece can be lifted together and transferred to the pool, greatly reducing the time consumption and improving the overall hoisting balance, avoiding the situation of workpiece tipping.

[0050] In a specific embodiment, support columns 1 are respectively arranged on both sides below the hanging frame 3. By setting the support columns, the height of the hanging frame can be matched with the height of the quenching basket on the trolley.

[0051] First, design a quenching basket that meets the furnace cavity size according to the specifications of the heating furnace, and design the size of the convex or concave stops of the quenching basket with reference to the weight of the workpiece; design the structure and size of the hanging frame according to the size of the heating furnace trolley and the quenching basket, and design the size and fixed position of the support columns for placing the hanging frame; then manufacture the above-mentioned quenching basket, hanging frame and support columns, install the support columns and place the quenching basket on the heating furnace trolley and move it in and out of the trolley to ensure that the hanging frame is placed in a suitable position on the support columns and mark it.

[0052] Then, during implementation, place the workpieces on the quenching basket as required and lift the workpieces and the quenching basket onto the heating furnace trolley together and position them correctly; heat according to the process requirements; after heating, use the crane to lift the hanging bracket onto the support column and position it correctly at the pre-marked position; open the furnace door of the heating furnace and move the trolley to the pre-set position. At this time, the hanging bracket and the quenching basket are completed and engaged; the crane hooks up to lift the hanging bracket, the quenching basket and the workpieces, and the crane moves so that the hanging bracket, the quenching basket and the workpieces are directly above the quenching pool; release the hook so that the hanging bracket, the quenching basket and the workpieces are completely immersed in the quenching medium and cooled to the required temperature.

[0053] In a specific embodiment, the support column 1 has a telescopic structure, and the height of the support column can be adjusted through the telescopic structure to facilitate the adjustment of the placement height of the hanging bracket.

[0054] In a specific embodiment, a lifting ring 4 is provided at the top of the hanging bracket 3.

[0055] In a specific embodiment, the hanging bracket 3 includes two groups of vertically arranged suspension rods that are parallel to each other. The upper ends of the two groups of vertically arranged suspension rods are connected by a suspension plate, and a horizontal channel is formed between the two groups of vertically arranged suspension rods. Each group of vertically arranged suspension rods includes two or more than two parallel suspension rods. Concave or convex stops that match the concave or convex stops on the outer wall of the quenching basket 2 are provided on the inner sides of the lower ends of the two groups of vertically arranged suspension rods. The present utility model uses suspension rods and a suspension plate to form a hanging bracket, which not only ensures that it has sufficient structural strength to lift the quenching basket and the workpieces, but also minimizes the weight of the hanging bracket.

[0056] In a specific embodiment, a reinforcing rod is further provided between the suspension rod and the suspension plate, which can further strengthen the strength of the hanging bracket.

[0057] In a specific embodiment, the hanging bracket 3 is made of stainless steel material, which ensures the strength and high temperature resistance of the hanging bracket 3.

[0058] In a specific embodiment, a support flat plate is provided at the upper end of the support column 1, which increases the stress area of the support column and the area of the region where the hanging bracket can be placed, and facilitates the placement of the hanging bracket on the support column for position adjustment.

[0059] In a specific embodiment, concave stops are provided on both sides of the outer wall of the quenching basket 2, and convex stops are provided on the inner walls of both sides of the hanging bracket 3.

[0060] In a specific embodiment, the outer edge of the convex stop is in a rounded corner structure.

[0061] The specific embodiments described above further elaborate on the purpose, technical solutions, and beneficial effects of the present utility model. It should be understood that the above description is only for the specific embodiments of the present utility model and is not intended to limit the protection scope of the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A lifting mechanism for workpiece quenching and rapid immersion in water, characterized in that: It includes a quenching basket (2) and a hanger (3); The outer walls of both sides of the quenching basket (2) are provided with concave stoppers or convex stoppers in the horizontal direction; The hanger (3) has a horizontal channel, and the horizontal channel is used for the quenching basket (2) to move horizontally from the outside of the hanger (3) to the inside of the hanger (3); The inner walls of the hangers (3) on both sides of the horizontal channel are provided with convex stoppers or concave stoppers that match the concave stoppers or convex stoppers on the outer wall of the quenching basket (2); When the quenching basket (2) moves horizontally from the outside of the hanger (3) to the inside of the hanger (3), the concave stop or convex stop on the outer wall of the quenching basket (2) cooperates with the convex stop or concave stop on the hanger (3) to achieve the hanging connection between the quenching basket (2) and the hanger (3).

2. A lifting mechanism for workpiece quenching and rapid immersion in water according to claim 1, characterized in that: Support columns (1) are also provided on both sides below the hanger (3).

3. A lifting mechanism for rapid immersion of workpieces for quenching in water according to claim 2, characterized in that: The support column (1) has a telescopic structure.

4. The lifting mechanism for rapid immersion of workpieces for quenching in water according to claim 1, characterized in that: A hanging ring (4) is provided on the top of the hanger (3).

5. The lifting mechanism for rapid immersion of workpieces for quenching in water according to claim 1, characterized in that: The hanger (3) comprises two groups of vertical hangers arranged in parallel, the upper ends of the two groups of vertical hangers are connected by a hanger plate, a horizontal channel is formed between the two groups of vertical hangers, each group of vertical hangers comprises two or more than two hangers arranged in parallel, and the inner sides of the lower ends of the two groups of vertical hangers are provided with convex stoppers or concave stoppers matching the concave stoppers or convex stoppers of the outer wall of the quenching basket (2).

6. A lifting mechanism for rapid immersion of workpieces for quenching in water according to claim 5, characterized in that: A reinforcing rod is also arranged between the suspension rod and the suspension plate.

7. The hoisting mechanism for rapid immersion of workpieces for quenching in water according to claim 1, characterized in that: The hanger (3) is made of stainless steel.

8. The hoisting mechanism for rapid immersion of workpieces for quenching in water according to claim 2, characterized in that: A supporting plate is provided at the upper end of the supporting column (1).

9. The lifting mechanism for rapid immersion of workpieces for quenching in water according to claim 1, characterized in that: Concave stoppers are arranged on both sides of the outer wall of the quenching basket (2), and convex stoppers are arranged on both sides of the inner walls of the hanger (3).

10. A lifting mechanism for workpiece quenching and rapid immersion in water according to claim 9, characterized in that: The outer edge of the convex stop is a rounded structure.

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