Railway fitting heating furnace structure

Abstract

This utility model discloses a heating furnace structure for railway parts, mainly relating to the field of heat treatment of railway parts. It includes a pit-type furnace body with a furnace opening at the top. A furnace cover for use with the furnace opening is located at the top of the pit-type furnace body. A rotating shaft and a rotary motor for driving the rotating shaft are located at the top of the pit-type furnace body. A fixed frame is mounted on the rotating shaft, and a support column is slidably connected vertically to the fixed frame. A lifting motor for driving the support column to slide up and down is located on the fixed frame. The furnace cover is fixed to the bottom end of the support column. A positioning groove is provided at the furnace opening, and a positioning block for use with the positioning groove is provided on the furnace cover. The beneficial effects of this utility model are: it solves the technical problems of difficult opening and closing of the furnace cover and potential safety hazards in existing pit-type furnaces, realizing automatic rotation and lifting of the furnace cover, thereby improving the convenience of furnace cover opening and closing control, eliminating the need for manual contact, and ensuring the safety of furnace cover opening and closing control.

Description

Technical Field

[0001] This utility model relates to the field of heat treatment of railway parts, specifically a heating furnace structure for railway parts. Background Technology

[0002] After production, railway components require heat treatment to eliminate internal stress and improve structural strength. Existing pit furnace structures for heat treatment of railway components typically have a thick furnace cover at the top of the furnace opening to ensure insulation. This makes the cover quite heavy, requiring manual opening and closing for component handling. This manual operation is difficult, and the cover's high temperature from prolonged contact with the furnace body poses a risk of burns. Therefore, the convenience and safety of opening and closing the furnace cover in existing pit furnaces need further improvement. Utility Model Content

[0003] The purpose of this utility model is to provide a heating furnace structure for railway accessories, which can solve the technical problems of difficult opening and closing of the furnace cover and potential safety hazards in existing pit furnaces. It realizes the automatic rotation and lifting of the furnace cover, thereby improving the convenience of furnace cover opening and closing control, eliminating the need for manual contact and ensuring the safety of furnace cover opening and closing control.

[0004] To achieve the above objectives, this utility model employs the following technical solution:

[0005] A heating furnace structure for railway fittings includes a pit-type furnace body. The top of the pit-type furnace body is provided with a furnace opening. The top of the pit-type furnace body is provided with a furnace cover for use with the furnace opening. The top of the pit-type furnace body is provided with a rotating shaft and a rotary motor for driving the rotating shaft to rotate. A fixed frame is provided on the rotating shaft. A support column is slidably connected to the fixed frame along the vertical direction. A lifting motor for driving the support column to slide up and down is provided on the fixed frame. The furnace cover is fixed to the bottom end of the support column. A positioning groove is provided at the furnace opening. A positioning block for use with the positioning groove is provided on the furnace cover.

[0006] Furthermore, the fixed frame is provided with a through sliding hole, the support column passes through the sliding hole and is slidably connected to it, the support column is provided with a rack, and the output shaft of the lifting motor is provided with a first gear that meshes with the rack.

[0007] Furthermore, the support column is provided with a notch, and the rack is fixed inside the notch.

[0008] Furthermore, the mounting bracket is equipped with a protective box, and the rack and the first gear are both located inside the protective box.

[0009] Furthermore, both the positioning groove and the positioning block are ring-shaped and used in conjunction.

[0010] Furthermore, the top of the well-type furnace body is provided with a fixed sleeve, and the rotating shaft is rotatably connected inside the fixed sleeve. Both the rotating shaft and the output shaft of the rotary motor are provided with mutually meshing second gears.

[0011] Furthermore, the bottom of the furnace cover is provided with a heat insulation groove, the heat insulation groove is provided with a filling block, and a heat insulation layer is provided between the filling block and the inner wall of the heat insulation groove.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. The structure of this utility model is provided with a rotating shaft and a rotary motor that drives the rotating shaft to rotate at the top of the well-type furnace body. A fixed frame is provided on the rotating shaft, and a support column is slidably connected to the fixed frame along the vertical direction. The furnace cover is fixed to the bottom end of the support column. A lifting motor that drives the support column to slide up and down is provided on the fixed frame. When the furnace cover needs to be opened, the lifting motor drives the support column to slide upward, so that the furnace cover at the bottom end of the support column is disengaged from the furnace opening. Then the rotary motor drives the rotating shaft to rotate, so that the furnace cover rotates to one side of the furnace opening, thereby exposing the furnace opening. This facilitates the handling of railway parts from the furnace opening, realizes convenient opening and closing control of the furnace cover, greatly reduces the difficulty of opening and closing the furnace cover, and requires no manual contact throughout the process, ensuring the safety of the furnace cover opening and closing control.

[0014] 2. A positioning groove is provided at the furnace opening, and a positioning block is provided on the furnace cover to cooperate with the positioning groove. With this structure, when the furnace cover is rotated to the top of the furnace opening, the lifting motor drives the support column and the furnace cover to descend to the furnace opening. At this time, the positioning block moves down into the positioning groove, so that after the furnace cover is placed at the furnace opening, the furnace cover is not easy to move laterally relative to the furnace opening. This improves the sealing performance of the furnace cover to the furnace opening, avoids heat loss, ensures the effect of heat treatment of railway parts, and reduces energy waste. Attached Figure Description

[0015] Appendix Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Appendix Figure 2 This is a top view of the present invention.

[0017] Appendix Figure 3 This is an appendix to this utility model. Figure 2 A cross-sectional view along the AA direction.

[0018] Appendix Figure 4 This is an appendix to this utility model. Figure 3 Cross-sectional view along the BB direction.

[0019] Appendix Figure 5 This is an appendix to this utility model. Figure 4 A magnified view of part C in the middle.

[0020] The labels shown in the attached diagram:

[0021] 1. Well-type furnace body; 2. Furnace opening; 3. Furnace cover; 4. Rotating shaft; 5. Rotary motor; 6. Fixing frame; 7. Support column; 8. Lifting motor; 9. Positioning groove; 10. Positioning block; 11. Sliding hole; 12. Rack; 13. First gear; 14. Notch; 15. Protective box; 16. Fixing sleeve; 17. Second gear; 18. Insulation groove; 19. Filling block; 20. Insulation layer. Detailed Implementation

[0022] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the present invention, and these equivalent forms also fall within the scope defined in this application.

[0023] Reference Figure 1 and Figure 2This utility model describes a heating furnace structure for railway parts. The main structure includes a pit-type furnace body 1, which is generally located below ground level to achieve better heat preservation and reduce the space occupied in the workshop. The top of the pit-type furnace body 1 is provided with a furnace opening 2, through which railway parts requiring heat treatment can be placed and removed. The top of the pit-type furnace body 1 is provided with a furnace cover 3 for use with the furnace opening 2. The furnace cover 3 is used to close the furnace opening 2 to ensure that the temperature inside the pit-type furnace body 1 remains within a stable range during heat treatment. The top of the pit-type furnace body 1 is provided with a rotating shaft 4 and a drive shaft. A rotary motor 5 drives the rotation of the shaft 4, which is rotatably connected to the top of the pit furnace body 1 via bearings. A fixing frame 6 is welded to the shaft 4 and is horizontally positioned. Preferably, a reinforcing diagonal brace is provided between the top of the shaft 4 and the fixing frame 6 to improve the robustness of the connection between the fixing frame 6 and the shaft 4. A support column 7 is slidably connected to the fixing frame 6 vertically, allowing it to slide relative to the fixing frame 6. A lifting motor 8, which drives the support column 7 to slide up and down, is fixed to the fixing frame 6 by welding or bolts. The furnace cover 3 is fixed to the bottom of the support column 7 by welding or bolts. When the furnace cover 3 needs to be opened, the lifting motor 8 drives the support column 7 and the furnace cover 3 to slide upwards, disengaging the furnace cover 3 from the furnace opening 2. Then, the rotary motor 5 drives the rotating shaft 4 and the fixed frame 6 to rotate, causing the furnace cover 3 to rotate to one side of the furnace opening 2, thus opening the furnace opening 2. This facilitates the handling of railway parts from the furnace opening 2, greatly reducing the difficulty of opening and closing the furnace cover 3. Furthermore, the entire process of opening and closing the furnace cover 3 does not require human contact, avoiding the risk of burns and ensuring the safe and controlled opening and closing of the furnace cover 3. To ensure safety, a positioning groove 9 is provided at the furnace opening 2, and a positioning block 10 for use with the positioning groove 9 is fixed on the furnace cover 3 by welding or bolts. With this structure, when the furnace cover 3 slides down to cover the furnace opening 2, the positioning block 10 on the furnace cover 3 enters the positioning groove 9 vertically. This makes it difficult for the furnace cover 3 to move relative to the furnace opening 2 in the lateral direction when the furnace cover 3 closes the furnace opening 2. Under the action of gravity, the furnace cover 3 is stably covered at the furnace opening 2, which improves the sealing effect of the furnace opening 2, avoids heat loss during the heat treatment process, ensures the effect of heat treatment of railway parts, and reduces energy waste.

[0024] Preferably, the fixed frame 6 is provided with a through sliding hole 11, and the support column 7 passes through the sliding hole 11 and is slidably connected to it. The setting of the sliding hole 11 makes the vertical sliding structure of the support column 7 relative to the fixed frame 6 more stable, making the furnace cover 3 less likely to shake relative to the fixed frame 6. Preferably, multiple guide columns can also be set on the furnace cover 3, and multiple guide rings can be set on the fixed frame 6. The guide columns pass through the guide rings and are slidably connected to them, further improving the stability of the sliding movement of the furnace cover 3 relative to the fixed frame 6. A rack 12 is fixed to the support column 7 by welding or bolts, and a first gear 13 that meshes with the rack 12 is fixed to the output shaft of the lifting motor 8 by welding or bolts. With this structure, when the lifting motor 8 drives the first gear 13 to rotate, the meshing of the first gear 13 with the rack 12 drives the support column 7 and the furnace cover 3 to slide up and down, thereby realizing the up and down sliding drive of the furnace cover 3. The structure is simple, and the lifting control of the furnace cover 3 is more efficient and accurate.

[0025] Preferred, refer to Figure 4 and Figure 5 The support column 7 is provided with a notch 14, which is recessed inward from the side of the support column 7. The rack 12 is fixed inside the notch 14 by welding or bolts. This structure prevents the rack 12 from forming a protrusion on the side of the support column 7, allowing the support column 7 with rack 12 to slide smoothly up and down along the sliding hole 11, ensuring the smoothness and stability of the up and down sliding movement of the support column 7 relative to the fixed frame 6.

[0026] Preferably, a protective box 15 is fixed to the fixing frame 6 by welding or bolts. The rack 12 and the first gear 13 are both located inside the protective box 15. This structure seals the contact position of the rack 12 and the first gear 13 with the protective box 15, preventing external dust or impurities from entering the connection between the two and ensuring the smoothness of the up-and-down sliding drive of the furnace cover 3.

[0027] Preferably, the positioning groove 9 and the positioning block 10 are both rings used in conjunction. The ring-shaped positioning block 10 is fixed to the periphery of the furnace cover 3 by welding or bolts. The ring structure makes the contact area between the positioning block 10 and the positioning groove 9 larger, and the furnace cover 3 is less likely to move laterally when it covers the furnace opening 2, which further improves the positioning effect of the furnace opening 2 and the furnace cover 3.

[0028] Preferably, the top of the well-type furnace body 1 is fixed with a fixing sleeve 16 by welding or bolting. The rotating shaft 4 is rotatably connected to the inside of the fixing sleeve 16 by bearings. The fixing sleeve 16 can provide support for the rotation of the rotating shaft 4, making it less prone to tilting and shaking when the rotating shaft 4 rotates, and further improving the stability of the rotating structure of the rotating shaft 4. The rotating shaft 4 and the output shaft of the rotary motor 5 are both fixed with meshing second gears 17 by welding or bolting. Preferably, a protective cover is set on the outside of the two second gears 17 to prevent impurities or dust from entering and affecting the smoothness of their relative rotation. With this structure, when the rotary motor 5 is started, the meshing of the two second gears 17 can smoothly drive the rotating shaft 4 to rotate, making the rotation drive of the rotating shaft 4 smoother and more stable.

[0029] Preferred, refer to Figure 3 The bottom of the furnace cover 3 is provided with a heat insulation groove 18, which is recessed inward from the bottom of the furnace cover 3. The heat insulation groove 18 is provided with a filling block 19, which can be made of metal or concrete. A heat insulation layer 20 is provided between the filling block 19 and the inner wall of the heat insulation groove 18. The heat insulation layer 20 can be made of heat insulation tiles or heat insulation cotton in the prior art. This structure effectively seals the contact position between the furnace cover 3 and the furnace opening 2 by the heat insulation layer 20, thereby further preventing the heat from dissipating from the well furnace body 1 and ensuring the sealing and heat insulation effect of the furnace opening 2.

[0030] Working Principle: This invention features a rotating shaft 4 and a rotary motor 5 at the top of the well-type furnace body 1. A fixed frame 6 is mounted on the rotating shaft 4, and a support column 7 is vertically slidably connected to the fixed frame 6. The furnace cover 3 is fixed to the bottom end of the support column 7. A lifting motor 8, which drives the support column 7 to slide up and down, is mounted on the fixed frame 6. When the furnace cover 3 needs to be opened, the lifting motor 8 drives the support column 7 to slide upwards, causing the furnace cover 3 at the bottom of the support column 7 to detach from the furnace opening 2. Then, the rotary motor 5 drives the rotating shaft 4 to rotate, causing the furnace cover 3 to rotate to one side of the furnace opening 2, thus exposing the furnace opening 2. This facilitates the handling of railway parts from the furnace opening 2. The furnace cover 3 features convenient opening and closing control, greatly reducing the difficulty of opening and closing it, and requiring no manual contact throughout the process, thus ensuring the safety of the furnace cover 3 opening and closing control. A positioning groove 9 is provided at the furnace opening 2, and a positioning block 10 is provided on the furnace cover 3 to cooperate with the positioning groove 9. With this structure, when the furnace cover 3 rotates to the top of the furnace opening 2, the lifting motor 8 drives the support column 7 and the furnace cover 3 to descend to the furnace opening 2. At this time, the positioning block 10 moves downward into the positioning groove 9, so that after the furnace cover 3 is placed on the furnace opening 2, the furnace cover 3 is not easy to move laterally relative to the furnace opening 2, thereby improving the sealing performance of the furnace cover 3 to the furnace opening 2, preventing heat loss, ensuring the effect of heat treatment of railway parts, and reducing energy waste.

Claims

1. A heating furnace structure for railway fittings, comprising a pit-type furnace body (1), wherein the top of the pit-type furnace body (1) is provided with a furnace opening (2), and the top of the pit-type furnace body (1) is provided with a furnace cover (3) for use with the furnace opening (2), characterized in that: The top of the well-type furnace body (1) is provided with a rotating shaft (4) and a rotary motor (5) for driving the rotating shaft (4) to rotate. A fixed frame (6) is provided on the rotating shaft (4). A support column (7) is slidably connected on the fixed frame (6) along the vertical direction. A lifting motor (8) for driving the support column (7) to slide up and down is provided on the fixed frame (6). The furnace cover (3) is fixed to the bottom end of the support column (7). A positioning groove (9) is provided at the furnace opening (2). A positioning block (10) is provided on the furnace cover (3) to cooperate with the positioning groove (9).

2. The structure of a heating furnace for railway components according to claim 1, characterized in that: The fixed frame (6) is provided with a through sliding hole (11), the support column (7) passes through the sliding hole (11) and is slidably connected to it, the support column (7) is provided with a rack (12), and the output shaft of the lifting motor (8) is provided with a first gear (13) that meshes with the rack (12).

3. The structure of a heating furnace for railway components according to claim 2, characterized in that: The support column (7) has a notch (14), and the rack (12) is fixed inside the notch (14).

4. The structure of a heating furnace for railway components according to claim 2, characterized in that: The fixed frame (6) is provided with a protective box (15), and the rack (12) and the first gear (13) are both located inside the protective box (15).

5. The structure of a heating furnace for railway components according to claim 1, characterized in that: The positioning groove (9) and the positioning block (10) are both rings used in conjunction.

6. The structure of a heating furnace for railway components according to claim 1, characterized in that: The top of the well-type furnace body (1) is provided with a fixed sleeve (16), and the rotating shaft (4) is rotatably connected inside the fixed sleeve (16). The rotating shaft (4) and the output shaft of the rotary motor (5) are both provided with a second gear (17) that meshes with each other.

7. The structure of a heating furnace for railway components according to claim 1, characterized in that: The bottom of the furnace cover (3) is provided with a heat insulation groove (18), and a filling block (19) is provided in the heat insulation groove (18). A heat insulation layer (20) is provided between the filling block (19) and the inner wall of the heat insulation groove (18).

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