A continuous furnace hanging device

Abstract

The utility model relates to a technology field of hanging and placing frock, concretely relates to a continuous furnace hanging and placing frock, include: the tray and set up on the tray load bearing frame body, both sides of load bearing frame body are equipped with the outer triangle fixed frame, and the outer triangle fixed frame is connected with the load bearing frame body between the sleeve connection component, and the outer triangle fixed frame is connected through not less than 2 screw thread pin between the tray respectively, and the load bearing frame body is equipped with a plurality of mounting holes in rectangular array, and the mounting hole is respectively threaded with the string rod component, and the string rod component includes the string rod body, and the both ends outer surface of string rod body is connected with a plurality of radial support piece respectively at intervals, and the both sides of radial support piece are equipped with the axial limiting piece fixed on the string rod body respectively. The utility model has the advantages of reasonable structure, improves work efficiency, and reduces the labor intensity of operating personnel.

Description

Technical Field

[0001] This utility model relates to the field of hanging fixture technology, and in particular to a hanging fixture for a continuous furnace. Background Technology

[0002] As a core production line in modern heat treatment industry, continuous furnace lines are highly suited to the demands of large-scale, stable, and efficient production. In the process of heat treating main reduction gears using a continuous furnace, the choice of gear placement method becomes a key factor determining product quality, deformation control, and production efficiency. When a placement process is required, traditional placement fixtures typically consist of a material tray, four columns, multiple sets of toothed crossbeams, and several connecting rods: the columns are symmetrically installed at the four corners of the material tray, with half of the toothed crossbeams evenly spaced between the front and rear sets of columns, maintaining corresponding heights; the connecting rods are horizontally mounted on the toothed crossbeams, and multiple gears to be heat-treated are placed on them, thus achieving gear placement.

[0003] However, given that a single main reduction gear typically weighs between 5 and 10 kg, manual loading and unloading operations often only allow for single-item handling. When multiple gears are connected in series, the overall weight increases significantly, making it difficult for a single operator to complete the handling operation independently; two operators are required to coordinate the loading and unloading. This traditional method of hanging tooling not only consumes a lot of time and manpower, resulting in low work efficiency, but also greatly increases the labor intensity of the operators. Utility Model Content

[0004] The main technical problem solved by this utility model is to provide a continuous furnace hanging fixture, which improves work efficiency and reduces the labor intensity of operators.

[0005] To solve the above-mentioned technical problems, the present invention provides a continuous furnace hanging fixture, comprising: a material tray and a load-bearing frame set on the material tray. The load-bearing frame has external triangular fixing brackets on both sides. A clamping connection assembly connects the external triangular fixing brackets to the load-bearing frame. The external triangular fixing brackets and the material tray are connected by at least two threaded pins. The load-bearing frame has a rectangular array of mounting holes. A stringing rod assembly passes through each mounting hole. The stringing rod assembly includes a stringing rod body. Several radial support members are spaced apart on the outer surfaces of both ends of the stringing rod body. Axial limiting members fixed to the stringing rod body are provided on both sides of each radial support member.

[0006] By adopting the above technical solution, during use, the load-bearing frame is placed at the center of the upper plane of the material tray. The load-bearing frame is connected to the outer triangular fixing brackets on both sides through corresponding clamping connection components. The outer triangular fixing brackets are connected to the material tray through multiple threaded pins, so that the load-bearing frame and the material tray are indirectly fixed. Next, the stringing rod assembly is inserted into the corresponding mounting holes, and then multiple gears to be heat-treated are mounted on the stringing rod. The inner wall of the gear contacts the radial support, so that there is a gap between the inner wall of the gear and the stringing rod, which facilitates heat transfer and enhances the heat treatment effect. The gear is located between two corresponding axial limiting components, which prevent the gear from moving along the length direction of the stringing rod, thus achieving the purpose of limiting. This ensures that there is a suitable gap between adjacent gears for heat flow. That is, there is no need for two operators to cooperate in loading and unloading the stringing rod assembly after multiple gears are connected, which improves work efficiency and reduces the labor intensity of operators.

[0007] In a preferred embodiment, the present invention can be further configured as follows: a heat transfer hole is provided at the center of the rod body, a reinforcing rib is connected inside the heat transfer hole, two ends of the rod body are respectively provided with end double insertion holes, and double rod insertion pins are respectively inserted into the end double insertion holes, two intermediate double insertion holes are provided at intervals on the rod body, and the double rod insertion pins are respectively inserted into the intermediate double insertion holes, and a plurality of waist-shaped holes are provided at intervals on the outer surface of the rod body.

[0008] By adopting the above technical solution, the heat transfer hole at the center of the rod body enhances the smoothness of heat transfer and improves the heat treatment effect of the gear. Reinforcing ribs connected within the heat transfer hole enhance the bending strength of the rod body. Double-rod connector pins inserted into the double-hole connectors at both ends of the rod body prevent the gear from detaching from the rod body when moving or placing the fixture. Double-rod connector pins inserted into the middle double-hole connector on the rod body, located on opposite sides of the load-bearing frame, prevent axial movement of the rod body relative to the load-bearing frame, thus enhancing the stability of the fixture. Several oblong holes spaced apart on the outer surface of the rod body allow heat to quickly heat-treat the inner wall of the gear through the heat transfer hole and oblong holes.

[0009] In a preferred embodiment, the present invention can be further configured such that: the radial support member includes four arc-shaped bosses, which are spaced apart on the outer surface of the rod body along the circumferential direction, and a heat transfer cavity is provided between adjacent arc-shaped bosses.

[0010] By adopting the above technical solution, the two adjacent arc-shaped bosses contact the inner wall of the gear, and heat flows in the heat transfer cavity, which enhances the uniformity of heat distribution and improves the heat treatment effect on the gear.

[0011] In a preferred embodiment, the present invention can be further configured such that: the axial limiting member includes four axial limiting bosses, the length of which the axial limiting bosses extend outward is greater than the length of which the arc-shaped bosses extend outward, and the heat transfer cavity is provided between adjacent axial limiting bosses.

[0012] By adopting the above technical solution, the gear is axially limited by the axial limiting boss, preventing the gear from moving along the length direction of the truss body. This ensures that there is a suitable gap between adjacent gears, enhances the uniformity of heat contact between the gear and the heat, and improves the heat treatment effect on the gear.

[0013] In a preferred embodiment, the present invention can be further configured as follows: the ferrule connecting assembly includes a U-shaped groove disposed on the outer triangular fixing frame, the U-shaped groove being fitted onto the corresponding side of the load-bearing frame, the outer triangular fixing frame having a plurality of fixing holes spaced apart, a transition hole being provided on one side of each fixing hole, the diameter of the transition hole being larger than the diameter of the fixing hole and the two being connected, a side connecting pin being inserted into each fixing hole, the end of the side connecting pin passing through the load-bearing frame and being threadedly connected to a limit nut.

[0014] By adopting the above technical solution, the two sides of the load-bearing frame extend into the corresponding U-shaped grooves, so that the load-bearing frame is limited in the horizontal direction relative to the material tray. By using the side connecting pins and limiting nuts, the load-bearing frame is limited in the vertical direction relative to the material tray. The setting of the transition hole and its connection with the corresponding fixing hole makes it easy for the side connecting pin to pass directly through the transition hole and then move into the fixing hole. It is not necessary to completely remove the side connecting pin from the load-bearing frame before assembling and fixing the outer triangular fixing bracket to the load-bearing frame, which improves the convenience of installation.

[0015] In a preferred embodiment, the present invention can be further configured as follows: a middle triangular fixing frame is provided on both sides of the load-bearing frame, the horizontal side of the middle triangular fixing frame is connected to the material tray by a threaded pin, the side connecting pin is provided between the vertical sides of the two middle triangular fixing frames at intervals, the side connecting pin passes through the load-bearing frame and the end is threadedly connected to the limiting nut.

[0016] By adopting the above technical solution, the vertical sides of the two intermediate triangular fixing frames are tightly attached to the load-bearing frame body, and a side connecting pin is used to pass through the three. The limiting nut is tightened for axial fastening, and the preload of the threaded pair is used to achieve a rigid connection between the load-bearing frame body and the intermediate triangular fixing frame. In the horizontal direction, the horizontal side of the intermediate triangular fixing frame is connected to the material tray by a threaded pin. The helical structure of the threaded pin not only provides reliable radial constraint, but also controls the connection preload through torque adjustment. This three-dimensional connection design, with the help of the geometric stability characteristics of the intermediate triangular fixing frame, transforms the single-point connection between the load-bearing frame body and the material tray into a multi-point constraint system, which significantly improves the bending resistance of the overall structure and effectively enhances the structural strength of the connection between the load-bearing frame body and the material tray.

[0017] In summary, this utility model has at least one of the following beneficial technical effects:

[0018] The truss assembly is inserted into the corresponding mounting holes, and then multiple gears to be heat-treated are mounted on the truss body. The inner wall of the gear contacts the radial support, creating a gap between the inner wall of the gear and the truss body, which facilitates heat transfer and enhances the heat treatment effect. The gear is located between two corresponding axial limiting components, which prevent the gear from moving along the length of the truss body, thus achieving the purpose of limiting the movement. This ensures that there is a suitable gap between adjacent gears for heat flow. In other words, it eliminates the need for two operators to work together to load and unload the truss assembly with multiple gears connected in series, improving work efficiency and reducing the labor intensity of the operators. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0020] Figure 1 This is a schematic diagram of a preferred embodiment of a continuous furnace hanging fixture according to the present invention.

[0021] Figure 2 yes Figure 1 A schematic diagram of the connection between the middle ferrule connecting assembly and the double-rod insertion pin.

[0022] Figure 3 yes Figure 1 A schematic diagram of the structure connecting the central load-bearing frame, the clamping connection assembly, and the outer triangular fixing frame.

[0023] Figure 4 yes Figure 2 A schematic diagram of the structure of the middle rod.

[0024] In the diagram: 1. Material tray; 2. Load-bearing frame; 3. External triangular fixing bracket; 40. Compression fitting assembly; 5. Threaded pin; 6. Mounting hole; 70. Stringing rod assembly; 8. Heat transfer hole; 9. Reinforcing rib; 11. End double insertion hole; 12. Double rod insertion pin; 13. Middle double insertion hole; 14. Waist-shaped hole; 15. Middle triangular fixing bracket;

[0025] 41. U-shaped groove; 42. Fixing hole; 43. Transition hole; 44. Side connecting pin; 45. Limiting nut;

[0026] 71. String rod body; 72. Radial support component; 73. Axial limiting component; 721. Arc-shaped boss; 722. Heat transfer cavity; 731. Axial limiting boss. Detailed Implementation

[0027] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0028] It should be noted that these figures are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0029] Reference Figures 1-4 This utility model discloses a continuous furnace hanging fixture, comprising: a material tray 1 and a load-bearing frame 2 disposed on the material tray 1. External triangular fixing brackets 3 are respectively provided on both sides of the load-bearing frame 2. A clamping connection assembly 40 connects the external triangular fixing brackets 3 and the load-bearing frame 2. The external triangular fixing brackets 3 and the material tray 1 are respectively connected by no less than two threaded pins 5. The load-bearing frame 2 has a rectangular array of mounting holes 6. A stringing rod assembly 70 passes through each mounting hole 6. The stringing rod assembly 70 includes a stringing rod body 71. A plurality of radial support members 72 are spaced apart on the outer surfaces of both ends of the stringing rod body 71. Axial limiting members 73 fixed to the stringing rod body 71 are respectively provided on both sides of the radial support members 72.

[0030] The clamping connection assembly 40 includes a U-shaped groove 41 disposed on the outer triangular fixing bracket 3. The U-shaped groove 41 clamps onto the corresponding side of the load-bearing frame 2. The outer triangular fixing bracket 3 is provided with a plurality of fixing holes 42 at intervals. A transition hole 43 is provided on one side of each fixing hole 42. The diameter of the transition hole 43 is larger than the diameter of the fixing hole 42 and the two are connected. A side connecting pin 44 passes through the fixing hole 42. The end of the side connecting pin 44 passes through the load-bearing frame 2 and is threadedly connected to a limit nut 45. The corresponding U-shaped grooves 41 extend into both sides of the load-bearing frame 2. The internal structure allows the load-bearing frame 2 to be positioned horizontally relative to the material tray 1. The use of the side connecting pin 44 and the limiting nut 45 allows the load-bearing frame 2 to be positioned vertically relative to the material tray 1. The transition hole 43, which is connected to the corresponding fixing hole 42, allows the side connecting pin 44 to pass directly through the transition hole 43 and then move into the fixing hole 42. This eliminates the need to completely remove the side connecting pin 44 from the load-bearing frame 2 before assembling and fixing the external triangular fixing bracket 3 to the load-bearing frame 2, thus improving the ease of installation.

[0031] The load-bearing frame 2 has two intermediate triangular fixing brackets 15 on each side. The horizontal side of the intermediate triangular fixing bracket 15 is connected to the material tray 1 by a threaded pin 5. The two intermediate triangular fixing brackets 15 are spaced apart by side connecting pins 44, which pass through the load-bearing frame 2 and are threaded to the end of the load-bearing frame 2 with a limiting nut 45. The vertical sides of the two intermediate triangular fixing brackets 15 are tightly attached to the load-bearing frame 2. The side connecting pins 44 pass through the three parts, and the limiting nuts 45 are tightened for axial fastening. The load-bearing capacity is achieved by utilizing the preload of the threaded pair. The frame 2 is rigidly connected to the intermediate triangular fixing frame 15. In the horizontal direction, the horizontal side of the intermediate triangular fixing frame 15 is connected to the material tray 1 by a threaded pin 5. The spiral structure of the threaded pin 5 not only provides reliable radial constraint, but also controls the connection preload through torque adjustment. This three-dimensional connection design, with the help of the geometric stability characteristics of the intermediate triangular fixing frame 15, transforms the single-point connection between the load-bearing frame 2 and the material tray 1 into a multi-point constraint system, which significantly improves the bending resistance of the overall structure and effectively enhances the structural strength of the connection between the load-bearing frame 2 and the material tray 1.

[0032] The gear rod body 71 has a heat transfer hole 8 at its center, and a reinforcing rib 9 is connected inside the heat transfer hole 8. Both ends of the gear rod body 71 have end double insertion holes 11, and double rod insertion pins 12 are inserted into each end double insertion hole 11. The gear rod body 71 also has two intermediate double insertion holes 13 spaced apart, and the aforementioned double rod insertion pins 12 are inserted into each intermediate double insertion hole 13. The outer surface of the gear rod body 71 has several oblong holes 14 spaced apart. The heat transfer hole 8 at the center of the gear rod body 71 enhances the smoothness of heat transfer and improves the gear heat treatment effect. The reinforcing rib 9 connected inside the heat transfer hole 8 strengthens the gear... The bending strength of the rod body 71 is enhanced by inserting double rod pins 12 into the double insertion holes 11 at both ends of the rod body 71 to prevent the gear from falling off the rod body 71 during handling and hanging operations. Double rod pins 12 are also inserted into the middle double insertion holes 13 on the rod body 71. The double rod pins 12 are located on the corresponding sides of the load-bearing frame 2 to prevent the rod body 71 from moving axially relative to the load-bearing frame 2, thus enhancing the stability of the hanging fixture. Several waist-shaped holes 14 are provided at intervals on the outer surface of the rod body 71, allowing heat to be quickly heat-treated on the inner wall of the gear through the heat transfer holes 8 and the waist-shaped holes 14.

[0033] The radial support 72 includes four arc-shaped bosses 721, which are spaced apart on the outer surface of the rod body 71 along the circumferential direction. A heat transfer cavity 722 is provided between adjacent arc-shaped bosses 721. Two adjacent arc-shaped bosses 721 are in contact with the inner wall of the gear. Heat flows in the heat transfer cavity 722, which enhances the uniformity of heat distribution and improves the heat treatment effect on the gear.

[0034] The axial limiting member 73 includes four axial limiting bosses 731. The outward extension length of the axial limiting bosses 731 is greater than the outward extension length of the arc-shaped bosses 721. The heat transfer cavity 722 is provided between adjacent axial limiting bosses 731. The axial limiting bosses 731 axially limit the gear, preventing the gear from moving along the length direction of the connecting rod body 71, so that there is a suitable gap between adjacent gears, which enhances the uniformity of the contact between the gear and heat and improves the heat treatment effect of the gear.

[0035] The implementation principle of this embodiment is as follows: In use, the load-bearing frame 2 is placed at the center of the upper plane of the material tray 1. The load-bearing frame 2 is connected to the outer triangular fixing brackets 3 on both sides through the corresponding clamping connection components 40. The outer triangular fixing brackets 3 are connected to the material tray 1 through multiple threaded pins 5, so that the load-bearing frame 2 and the material tray 1 are indirectly fixed. Next, the stringing rod assembly 70 is inserted into the corresponding mounting hole 6, and then multiple gears to be heat-treated are fitted onto the stringing rod 71. The inner wall of the gear contacts the radial support member 72, so that there is a gap between the inner wall of the gear and the stringing rod 71, which facilitates heat transfer and enhances the heat treatment effect. The gear is located between two corresponding axial limiting members 73. The axial limiting members 73 prevent the gear from moving along the length direction of the stringing rod 71, achieving the purpose of limiting. This allows for a suitable gap between adjacent gears to allow heat flow. That is, there is no need for two operators to cooperate in loading and unloading the stringing rod assembly 70 after multiple gears are connected, which improves work efficiency and reduces the labor intensity of operators.

[0036] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made using the content of this utility model specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A continuous furnace hanging fixture, characterized in that, include: The material tray (1) and the load-bearing frame (2) set on the material tray (1) are provided with external triangular fixing brackets (3) on both sides of the load-bearing frame (2). The external triangular fixing brackets (3) and the load-bearing frame (2) are connected by a ferrule connecting assembly (40). The external triangular fixing brackets (3) and the material tray (1) are connected by no less than two threaded pins (5). The load-bearing frame (2) is provided with a rectangular array of several mounting holes (6). The mounting holes (6) are respectively provided with rod assemblies (70). The rod assembly (70) includes a rod body (71). The outer surfaces of the two ends of the rod body (71) are respectively connected with several radial support members (72). The two sides of the radial support members (72) are respectively provided with axial limiting members (73) fixed on the rod body (71).

2. The continuous furnace hanging fixture according to claim 1, characterized in that, The center of the rod body (71) is provided with a heat transfer hole (8), and a reinforcing rib (9) is connected inside the heat transfer hole (8). Both ends of the rod body (71) are respectively provided with end double insertion holes (11), and double rod insertion pins (12) are respectively inserted into the end double insertion holes (11). The rod body (71) is provided with two intermediate double insertion holes (13) spaced apart, and the double rod insertion pins (12) are respectively inserted into the intermediate double insertion holes (13). The outer surface of the rod body (71) is provided with a number of waist-shaped holes (14) spaced apart.

3. The continuous furnace hanging fixture according to claim 1, characterized in that, The radial support (72) includes four arc-shaped bosses (721), which are spaced apart on the outer surface of the rod body (71) along the circumferential direction, and a heat transfer cavity (722) is provided between adjacent arc-shaped bosses (721).

4. The continuous furnace hanging fixture according to claim 3, characterized in that, The axial limiting member (73) includes four axial limiting bosses (731). The length of the axial limiting bosses (731) extending outward is greater than the length of the arc-shaped bosses (721) extending outward. The heat transfer cavity (722) is provided between adjacent axial limiting bosses (731).

5. The continuous furnace hanging fixture according to claim 1, characterized in that, The ferrule connection assembly (40) includes a U-shaped groove (41) provided on the outer triangular fixing frame (3). The U-shaped groove (41) is fitted onto the corresponding side of the load-bearing frame (2). The outer triangular fixing frame (3) is provided with a plurality of fixing holes (42) at intervals. A transition hole (43) is provided on one side of each fixing hole (42). The diameter of the transition hole (43) is larger than the diameter of the fixing hole (42) and the two are connected. A side connecting pin (44) is provided in each fixing hole (42). The end of the side connecting pin (44) passes through the load-bearing frame (2) and is threadedly connected to a limit nut (45).

6. The continuous furnace hanging fixture according to claim 5, characterized in that, The load-bearing frame (2) is provided with intermediate triangular fixing brackets (15) on both sides. The horizontal side of the intermediate triangular fixing bracket (15) is connected to the material tray (1) by a threaded pin (5). The side connecting pin (44) is provided between the vertical sides of the two intermediate triangular fixing brackets (15) at intervals. The side connecting pin (44) passes through the load-bearing frame (2) and the end is threaded with the limiting nut (45).

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