Long-distance roller furnace welding structure

Abstract

The utility model provides a long-distance roller furnace welding structure which structurally comprises a plurality of continuously-arranged box bodies, end face plates are welded to the front ends and the rear ends of the box bodies, threaded pins are welded to the surfaces of the end face plates, positioning frames are connected to the outer sides of the threaded pins in a sleeved mode, and nuts are connected to the outer sides of the threaded pins in a threaded mode. A plurality of guide frames are fixedly arranged at the bottom of the mounting frame from front to back, sliding seats are slidably connected to the outer sides of the guide frames, and limiting plates and positioning holes are movably connected to the tops of the sliding seats, so that a user can conveniently adjust the assembly positions of the positioning frames on threaded pins in welding operation, and welding deformation of an end face plate is restrained; the situation that severe deformation of the end face plates affects assembling and manufacturing of the box body is avoided, long-distance roller furnace manufacturing is achieved, and the technical problem that a steel plate assembly of an existing roller furnace is large in deformation in the welding process is solved.

Description

Technical Field

[0001] The utility model mainly relates to the technical field of roller hearth furnaces, and particularly relates to a welding structure of a long-distance roller hearth furnace. Background Art

[0002] The roller hearth furnace is also called a stick-type tunnel furnace. Its working principle is to convey products into the tunnel furnace through a roller array for heat treatment operations such as firing. The furnace body of the kiln is generally made by welding steel plate components. It is necessary to control the linear deformation generated during the welding production of the kiln to avoid the deformation of the steel plate components of the kiln causing the deformation of the roller conveying array and affecting the stability of material conveying in the kiln.

[0003] At the same time, due to the large construction investment of the roller hearth furnace, due to the conveying synchronization of its rollers, during the process of firing similar products of different sizes, the firing time of the products is different due to different sizes, and it is necessary to carry out batch firing operations on similar products of different sizes.

[0004] The inventor proposes a welding structure of a long-distance roller hearth furnace. By adding structural combinations such as threaded pins during the production process of the kiln steel plate components, the deformation amount generated during the welding operation of the kiln steel plate components is effectively controlled, realizing the production of a long-distance roller hearth kiln. At the same time, a braking device is arranged inside the kiln to synchronously fire products with different firing time requirements inside the kiln. Content of the Utility Model

[0005] 1. Technical problems to be solved by the utility model:

[0006] The utility model provides a welding structure of a long-distance roller hearth furnace, which solves the technical problem of large deformation amount of the steel plate components of the existing roller hearth kiln during the welding process.

[0007] 2. Technical solutions:

[0008] To achieve the above object, the technical solution provided by the utility model is: a welding structure of a long-distance roller hearth furnace, including the following structures:

[0009] A plurality of continuously arranged boxes, end panels are welded to the front and rear ends of the box, threaded pins are welded to the surface of the end panel, a positioning frame is sleeved on the outside of the threaded pin, and a nut is threadedly connected to the outside of the threaded pin.

[0010] An installation frame, a plurality of guide frames are fixedly arranged on the bottom of the installation frame from front to back, a sliding seat is slidably connected to the outside of the guide frame, and a limiting plate is movably connected to the top of the sliding seat.

[0011] Further, a plurality of rollers are movably connected to the middle of the box from front to back.

[0012] Further, a plurality of positioning holes are fixedly arranged on the surface of the positioning frame, and the top of the positioning frame abuts against the bottom of the nut.

[0013] Further, a guide rod is fixedly arranged on the outer side of the guide frame. The outer side of the guide rod is slidably connected to the middle part of the sliding seat. A limiting spring is sleeved on the rear end of the guide rod. The rear end of the limiting spring is clamped to the rear end of the guide frame, and the front end of the limiting spring is clamped to the rear side of the sliding seat.

[0014] A limiting steel wire is fixedly arranged at the top of the front end of the guide frame, and the rear end of the limiting steel wire is clamped to the left side of the limiting plate.

[0015] Further, a limiting pin is movably connected to the front section of the sliding seat, and a first torsion spring for resetting is clamped at the connection between the bottom of the limiting pin and the sliding seat.

[0016] Further, a clamping groove is fixedly arranged at the front end of the limiting plate. The clamping groove cooperates with the limiting pin. A guide wheel is movably connected to the right end of the limiting plate, and a second torsion spring is clamped at the connection between the limiting plate and the sliding seat.

[0017] 3. Beneficial effects:

[0018] Adopting the technical solution provided by the present utility model, compared with the prior art, the following beneficial effects are achieved:

[0019] The present utility model provides a welding structure for a long-distance roller hearth furnace. The design of the positioning holes facilitates the user to adjust the assembly position of the positioning frame on the threaded pin during the welding operation, restricts the welding deformation of the end panel, avoids serious deformation of the end panel affecting the assembly and manufacture of the box body, and realizes the manufacture of a long-distance roller hearth furnace;

[0020] The present utility model provides a welding structure for a long-distance roller hearth furnace. With the configuration of the limiting steel wire, during the sliding process of the sliding seat, the limiting steel wire is gradually straightened and tightened. When the sliding seat is close to the rear end of the guide frame, the limiting steel wire is straightened and tightened. The limiting steel wire pulls the limiting pin to release the connection between the limiting pin and the clamping groove on the limiting plate. At this time, the sliding seat continues to move towards the rear end of the guide frame, and the limiting steel wire pulls the limiting plate, causing the limiting plate to deflect towards the rear side of the guide frame, releasing the sagger conveyed on the roller, facilitating the synchronous firing operation of the device for two products that require different firing times;

[0021] Parts not involved in this device are the same as those in the prior art or can be realized by using the prior art. Description of the drawings

[0022] Figure 1 is a three-dimensional view of the structure of the present utility model;

[0023] Figure 2 is a three-dimensional view of the end panel structure of the present utility model;

[0024] Figure 3 is an enlarged view of the structure at position A in the present utility model; Figure 2 in the present utility model;

[0025] Figure 4 is a perspective view of the mounting frame structure of the present utility model;

[0026] Figure 5 is a semi-sectional perspective view of the box body structure of the present utility model;

[0027] Figure 6 is a semi-sectional perspective view of the sliding seat structure of the present utility model;

[0028] Figure 7 is the present utility model Figure 6 is an enlarged view of the structure at position B in the present utility model.

[0029] Reference numerals:

[0030] Box body - 1; Roller rod - 11;

[0031] End panel - 2;

[0032] Threaded pin - 3;

[0033] Positioning frame - 4; Positioning hole - 41;

[0034] Nut - 5;

[0035] Mounting frame - 6;

[0036] Guide frame - 7; Guide rod - 71; Limit spring - 72; Limit wire - 73;

[0037] Sliding seat - 8; Limit pin - 81; First torsion spring - 82;

[0038] Limit plate - 9; Card slot - 91; Guide wheel - 92; Second torsion spring - 93. Detailed implementation manners

[0039] To facilitate the understanding of the present utility model, the present utility model will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present utility model are given in the drawings. However, the present utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present utility model more thorough and comprehensive.

[0040] It should be noted that when an element is referred to as being "fixedly provided on" another element, it can be directly on the other element or there can also be an intermediate element; when an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intermediate element at the same time; the terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration.

[0041] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which this utility model belongs; the terms used herein in the specification of this utility model are only for the purpose of describing specific embodiments and are not intended to limit this utility model; the term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0042] Referring to the attached Figures 1-7 , this utility model provides a long-distance roller hearth furnace welding structure, including the following structures:

[0043] A plurality of continuously arranged boxes 1, end panels 2 are welded to the front and rear ends of the box 1, threaded pins 3 are welded to the surface of the end panels 2, a positioning frame 4 is sleeved on the outside of the threaded pins 3, and a nut 5 is threadedly connected to the outside of the threaded pins 3.

[0044] An installation frame 6, a plurality of guide frames 7 are fixedly provided on the bottom of the installation frame 6 from front to back, a sliding seat 8 is slidably connected to the outside of the guide frames 7, and a limiting plate 9 is movably connected to the top of the sliding seat 8.

[0045] In this embodiment, as Figure 1 , Figure 4 and Figure 5 shown, a plurality of roller rods 11 are movably connected to the middle of the box 1 from front to back.

[0046] The box 1 is made by welding a plurality of steel plate components, and the configured roller rods 11 are a conventional structural design of existing equipment and are an important structural component of the roller hearth furnace.

[0047] In this embodiment, as Figure 2 and Figure 3 shown, a plurality of positioning holes 41 are fixedly provided on the surface of the positioning frame 4, and the top of the positioning frame 4 abuts against the bottom of the nut 5.

[0048] The design of the positioning holes 41 facilitates the user to adjust the assembly position of the positioning frame 4 on the threaded pin 3 during welding operations, restricts the welding deformation of the end panel 2, avoids serious deformation of the end panel 2 affecting the assembly and manufacture of the box 1, and realizes the manufacture of a long-distance roller hearth furnace.

[0049] In this embodiment, as Figure 5 , Figure 6and Figure 7 As shown in Figure 7 , a guide rod 71 is fixedly installed on the outer side of the guide frame 7. The outer side of the guide rod 71 is slidably connected to the middle part of the sliding seat 8. A limit spring 72 is sleeved on the rear end of the guide rod 71. The rear end of the limit spring 72 is clamped to the rear end of the guide frame 7, and the front end of the limit spring 72 is clamped to the rear side of the sliding seat 8.

[0050] The cooperation between the guide rod 71 and the guide frame 7 provides sliding guidance for the sliding seat 8. The configuration of the limit spring 72 can push the sliding seat 8 to the front part of the guide rod 71.

[0051] A limit wire 73 is fixedly installed at the top of the front end of the guide frame 7. The rear end of the limit wire 73 is clamped to the left side of the limit plate 9.

[0052] The configuration of the limit wire 73 gradually straightens and tightens during the sliding process of the sliding seat 8. When the sliding seat 8 is close to the rear end of the guide frame 7, the limit wire 73 is straightened and tightened. The limit wire 73 pulls the limit pin 81 to release the connection between the limit pin 81 and the card slot 91 on the limit plate 9. At this time, the sliding seat 8 continues to move towards the rear end of the guide frame 7, and the limit wire 73 pulls the limit plate 9, causing the limit plate 9 to deflect towards the rear side of the guide frame 7, releasing the sagger conveyed on the release roller 11, which facilitates the synchronous firing operation of two products with different firing times by this equipment.

[0053] In this embodiment, as Figure 6 and Figure 7 shown, a limit pin 81 is movably connected to the front section of the sliding seat 8. A first torsion spring 82 for reset is clamped at the connection between the bottom of the limit pin 81 and the sliding seat 8.

[0054] The cooperation between the limit pin 81 and the first torsion spring 82 pulls the limit pin 81 back into the card slot 91 after the limit wire 73 loosens, completing the locking of the working position of the limit plate 9 on the sliding seat 8 and preventing the limit plate 9 from deflecting and being unable to brake and decelerate the sagger.

[0055] In this embodiment, as Figure 6 and Figure 7 shown, a card slot 91 is fixedly installed at the front end of the limit plate 9. The card slot 91 cooperates with the limit pin 81. A guide wheel 92 is movably connected to the right end of the limit plate 9. A second torsion spring 93 is clamped at the connection between the limit plate 9 and the sliding seat 8.

[0056] The second torsion spring 93 cooperates with the sliding seat 8. After the limiting steel wire 73 becomes loose, the limiting plate 9 deflects towards the front end of the guiding frame 7, completing the reset process of the limiting plate 9 on the sliding seat 8. The guide wheel 92 cooperates with the limiting plate 9 to prevent the other row of saggers being normally conveyed on the roller rod 11 from hooking on the limiting plate 9. The guide wheel 92 is arranged at the end of the limiting plate 9. After the sagger comes into contact with the guide wheel 92, during the conveyance of the sagger by the roller rod 11, the sagger and the limiting plate 9 can facilitate the continuous conveyance of the sagger by the roller rod 11 by means of the rotation of the guide wheel 92.

[0057] The above embodiments only represent a certain implementation mode of the present invention, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation to the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the appended claims.

Claims

1. A welding structure of a long-distance roller hearth furnace, characterized in that: It includes the following structure: A plurality of continuously arranged boxes (1), end panels (2) are welded to the front and rear ends of the box (1), threaded pins (3) are welded to the surface of the end panel (2), a positioning frame (4) is sleeved outside the threaded pin (3), and a nut (5) is threadedly connected to the outside of the threaded pin (3); An installation frame (6), a plurality of guide frames (7) are fixedly arranged on the bottom of the installation frame (6) from front to back, a sliding seat (8) is slidably connected to the outside of the guide frame (7), and a limiting plate (9) is movably connected to the top of the sliding seat (8).

2. The welding structure of a long-distance roller hearth furnace according to claim 1, characterized in that: A plurality of roller rods (11) are movably connected to the middle of the box (1) from front to back.

3. The welding structure of a long-distance roller hearth furnace according to claim 1, characterized in that: A plurality of positioning holes (41) are fixedly arranged on the surface of the positioning frame (4), and the top of the positioning frame (4) abuts against the bottom of the nut (5).

4. A long-distance roller hearth furnace welding structure according to claim 1, characterized in that: A guide rod (71) is fixedly arranged on the outside of the guide frame (7), the middle of the sliding seat (8) is slidably connected to the outside of the guide rod (71), a limiting spring (72) is sleeved at the rear end of the guide rod (71), the rear end of the limiting spring (72) is clamped with the rear end of the guide frame (7), and the front end of the limiting spring (72) is clamped with the rear side of the sliding seat (8); A limiting wire (73) is fixedly arranged at the top of the front end of the guide frame (7), and the rear end of the limiting wire (73) is clamped with the left side of the limiting plate (9).

5. A long-distance roller hearth furnace welding structure according to claim 1, characterized in that: A limiting pin (81) is movably connected to the front section of the sliding seat (8), and a first torsion spring (82) for resetting is clamped at the connection between the bottom of the limiting pin (81) and the sliding seat (8).

6. A long-distance roller hearth furnace welding structure according to claim 1, characterized in that: A card slot (91) is fixedly arranged at the front end of the limiting plate (9), the card slot (91) cooperates with the limiting pin (81), a guide wheel (92) is movably connected to the right end of the limiting plate (9), and a second torsion spring (93) is clamped at the connection between the limiting plate (9) and the sliding seat (8).

Images