Tool for replacing broken rod in roller kiln

Abstract

The utility model belongs to the technical field of roller kilns, particularly relates to a tool for replacing a broken stick in a roller kiln, and provides the following scheme aiming at the problems of low efficiency and high danger coefficient of manual stick replacement in the background technology: the tool comprises a steel pipe main body, a tiger plier component and an opening and closing control component, the steel pipe body comprises a front-end steel pipe, a middle-end steel pipe and a rear-end steel pipe, and the middle-end steel pipe is connected between the front-end steel pipe and the rear-end steel pipe in a threaded mode. The tool is adjustable in length, can adapt to broken rods at different positions, can control opening and closing of the upper plier head and the lower plier head through the rotating handle, simplifies operation steps, can complete clamping and pulling out through single operation, is simple and convenient to operate, can quickly replace the broken rods, improves replacement efficiency, reduces production interruption time, and is compact in structure and convenient to operate. An operator does not need to enter the kiln, replacement can be completed through an external control tool, the risk of high temperature and narrow space is thoroughly avoided, the device can adapt to the narrow space in the roller kiln, and the operation flexibility is improved.

Description

Technical Field

[0001] This utility model relates to the field of roller kiln technology, and in particular to a tool for replacing broken rollers in roller kilns. Background Technology

[0002] Roller kilns are continuous firing equipment widely used in industries such as ceramics and building materials. Their core feature is the automated production line operation, from preheating and firing to cooling, achieved through the transport of green materials by parallel, heat-resistant rollers. In existing roller kiln equipment, the rollers serve as key components for supporting and conveying materials, and their reliability is crucial to the overall operation of the kiln. However, due to high temperatures and mechanical stress, the rollers may break, leading to production interruptions.

[0003] When a roller breaks, it needs to be replaced promptly. Traditionally, this is done manually, which is not only inefficient but also poses a safety hazard to operators due to the confined space and high temperature environment inside the roller kiln. Therefore, it is necessary to develop a new tool to simplify the replacement process and improve both safety and efficiency. Utility Model Content

[0004] In view of the shortcomings of the prior art, this utility model provides a tool for replacing broken rollers in roller kilns, which overcomes the shortcomings of the prior art and effectively solves the problems of low efficiency and high risk of manual roller replacement.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A tool for replacing broken rollers in a roller kiln includes a steel pipe body, a vise assembly, and an opening / closing control assembly. The steel pipe body includes a front steel pipe, a middle steel pipe, and a rear steel pipe, with the middle steel pipe screwed between the front and rear steel pipes. The vise assembly includes symmetrically distributed upper and lower jaws, connecting rods welded to the outer walls of one side of the upper and lower jaws, and a pivot pin rotatably connected to the inner wall of the connecting rods. The opening / closing control assembly includes a connecting shaft screwed to the inner wall of the rear steel pipe, a pusher welded to the outer wall of one end of the connecting shaft, and a rotating handle welded to the outer wall of the other end of the connecting shaft.

[0007] Preferably, the outer wall of the top of the upper jaw and the outer wall of the bottom of the lower jaw are provided with anti-slip notches.

[0008] Preferably, the inner wall of one end of the front end steel pipe and the middle end steel pipe is provided with a first threaded groove, and the outer wall of the other end of the middle end steel pipe and the rear end steel pipe is provided with a threaded joint, which is screwed onto the inner wall of the adjacent first threaded groove.

[0009] Preferably, a second threaded groove is formed on the inner wall of one end of the rear steel pipe, and the end of the connecting shaft near the rotating handle is screwed onto the inner wall of the second threaded groove.

[0010] Preferably, the end of the front steel pipe near the vise assembly has a pin hole, and the pin is installed through the inner wall of the pin hole.

[0011] Preferably, the outer wall of one side of the pusher head is in close contact with the outer wall of one end of the connecting rod.

[0012] Preferably, the steel pipe body is located at one end of the vise assembly, and the opening and closing control assembly is located inside the steel pipe body.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. The tool for replacing broken rollers in the roller kiln designed in this paper has an adjustable length to accommodate broken rollers in different positions, thereby reducing adjustment time. The rotating handle can control the opening and closing of the upper and lower clamps, simplifying the operation steps. Clamping and extraction can be completed in a single operation. The tool is easy to operate and can quickly replace broken rollers, improving replacement efficiency and reducing production interruption time.

[0015] 2. The tool for replacing broken rollers in this roller kiln is compact in structure. The operator does not need to enter the kiln and can complete the replacement by operating the tool from the outside. This completely avoids the risks of high temperature and confined space, and can adapt to the confined space inside the roller kiln, improving the flexibility of operation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a tool for replacing broken roller bars in a roller kiln, as proposed in this utility model.

[0017] Figure 2 This is a schematic diagram of the internal connection structure of the steel pipe body of a tool for replacing broken roller bars in a roller kiln, as proposed in this utility model.

[0018] Figure 3 This is a schematic diagram of the disassembled steel pipe body structure of a tool for replacing broken roller bars in a roller kiln, as proposed in this utility model.

[0019] Figure 4 This is a schematic diagram of the unfolded structure of the tiger-head pliers assembly, a tool for replacing broken rollers in a roller kiln, as proposed in this utility model.

[0020] In the diagram: 1. Steel pipe body; 11. Front end steel pipe; 12. Middle end steel pipe; 13. Rear end steel pipe; 2. Vise assembly; 21. Upper jaw; 22. Lower jaw; 23. Connecting rod; 24. Shaft pin; 25. Anti-slip notch; 3. Opening and closing control assembly; 31. Connecting shaft; 32. Push head; 33. Rotating handle; 4. First threaded groove; 5. Threaded joint; 6. Second threaded groove; 7. Shaft pin hole. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figures 1-3 A tool for replacing broken rollers in a roller kiln includes a steel pipe body 1, a vise assembly 2, and an opening / closing control assembly 3. The steel pipe body 1 includes a front steel pipe 11, a middle steel pipe 12, and a rear steel pipe 13, with the middle steel pipe 12 screwed between the front steel pipe 11 and the rear steel pipe 13. The steel pipe body 1 is located at one end of the vise assembly 2, and the opening / closing control assembly 3 is located inside the steel pipe body 1. A first threaded groove 4 is formed on the inner wall of one end of both the front steel pipe 11 and the middle steel pipe 12, and a threaded joint 5 is formed on the outer wall of the other end of both the middle steel pipe 12 and the rear steel pipe 13. The threaded joint 5 is screwed onto the inner wall of an adjacent first threaded groove 4.

[0023] The main body of the steel pipe 1 consists of three sections: a front steel pipe 11, a middle steel pipe 12, and a rear steel pipe 13. The length of each section is adjusted by threaded connection. By tightening the threaded joint 5 with the first thread groove 4 of the adjacent steel pipe, a stable connection between the front steel pipe 11, the middle steel pipe 12, and the rear steel pipe 13 can be achieved.

[0024] Reference Figure 4 A tool for replacing broken rollers in a roller kiln, the tiger-head pliers assembly 2 includes symmetrically distributed upper pliers 21 and lower pliers 22, connecting rods 23 welded to the outer walls of one side of the upper pliers 21 and lower pliers 22 respectively, and a pivot pin 24 rotatably connected to the inner wall of the connecting rods 23. Anti-slip notches 25 are provided on the top outer wall of the upper pliers 21 and the bottom outer wall of the lower pliers 22. (Refer to...) Figure 1 The inner wall of one end of the rear steel pipe 13 is provided with a second threaded groove 6, and the end of the connecting shaft 31 near the rotating handle 33 is screwed onto the inner wall of the second threaded groove 6. The end of the front steel pipe 11 near the vise assembly 2 is provided with a shaft pin hole 7, and the shaft pin 24 is installed through and mounted on the inner wall of the shaft pin hole 7.

[0025] The inner wall of the rear steel pipe 13 is provided with a second threaded groove 6 for screwing the connecting shaft 31 of the opening and closing control assembly 3. The end of the front steel pipe 11 near the vise assembly 2 is provided with a shaft pin hole 7, through which the shaft pin 24 passes and is rotatably connected to the connecting rod 23 of the vise assembly 2 to ensure the flexible opening and closing of the vise.

[0026] The upper jaw 21 and lower jaw 22 are symmetrically distributed and rotatably connected to the connecting rod 23 via a pivot pin 24, forming a scissor-like opening and closing structure. The anti-slip notch 25 is designed with a toothed shape to increase the friction between the upper jaw 21 and lower jaw 22 and the inner wall of the broken rod, preventing slippage during clamping. The connecting rod 23 is welded to the side wall of the upper jaw 21 and lower jaw 22, and its other end contacts the push head 32 of the opening and closing control assembly 3. When the push head 32 moves back and forth, the lever action of the connecting rod 23 drives the opening and closing operation of the upper jaw 21 and lower jaw 22.

[0027] Reference Figure 2 The opening and closing control assembly 3 includes a connecting shaft 31 screwed to the inner wall of the rear steel pipe 13, a pusher 32 welded to the outer wall of one end of the connecting shaft 31, and a rotating handle 33 welded to the outer wall of the other end of the connecting shaft 31. The outer wall of one side of the pusher 32 is in close contact with the outer wall of one end of the connecting rod 23.

[0028] The rotation of the rotating handle 33 can drive the connecting shaft 31 to move axially. For example, when the rotating handle 33 is rotated clockwise, the connecting shaft 31 moves forward, the push head 32 pushes the connecting rod 23 to unfold outward, forcing the upper jaw 21 and the lower jaw 22 to open, and the jaws clamp the broken bar; when rotated counterclockwise, the connecting shaft 31 retracts, and the upper jaw 21 and the lower jaw 22 remain in a loose state.

[0029] Working principle:

[0030] Tool Insertion and Positioning: Before operation, adjust the length of the steel pipe body 1 according to the location of the broken bar. Align the tip of the tool with the internal hole of the broken bar and slowly insert it until the vise pliers assembly 2 is fully inside the broken bar.

[0031] Clamping and clamping: Rotating the rotating handle 33 drives the connecting shaft 31 forward, causing the pusher head 32 to move and push the connecting rod 23 outward. The upper clamping head 21 and the lower clamping head 22 open synchronously under the leverage of the connecting rod 23, and the anti-slip notch 25 is tightly attached to the inner wall of the broken rod, forming a multi-point contact clamping state.

[0032] Broken bar fixing and extraction: After the upper clamp 21 and lower clamp 22 open and clamp the broken bar, the operator slowly pulls out the tool along the bar axis. The broken bar is pulled out of the roller kiln along with the tool under the firm clamping of the upper clamp 21 and lower clamp 22.

[0033] Tool reset and reuse: After replacing the broken bar, rotate the rotating handle 33 in the opposite direction to loosen the broken bar between the upper jaw 21 and the lower jaw 22. The tool can be repeatedly adjusted in length and used to replace other broken bars.

[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A tool for replacing broken roller bars in a roller kiln, comprising a steel pipe body (1), a vise assembly (2), and an opening / closing control assembly (3), characterized in that, The main body of the steel pipe (1) includes a front steel pipe (11), a middle steel pipe (12) and a rear steel pipe (13), and the middle steel pipe (12) is screwed between the front steel pipe (11) and the rear steel pipe (13). The pliers assembly (2) includes symmetrically distributed upper pliers (21) and lower pliers (22), connecting rods (23) respectively welded to the outer wall of one side of the upper pliers (21) and lower pliers (22), and a shaft pin (24) rotatably connected to the inner wall of the connecting rod (23). The opening and closing control assembly (3) includes a connecting shaft (31) screwed to the inner wall of the rear steel pipe (13), a pusher (32) welded to the outer wall of one end of the connecting shaft (31), and a rotating handle (33) welded to the outer wall of the other end of the connecting shaft (31).

2. The tool for replacing broken roller bars in a roller kiln according to claim 1, characterized in that, The upper jaw (21) top outer wall and the lower jaw (22) bottom outer wall are both provided with anti-slip notches (25).

3. The tool for replacing broken roller bars in a roller kiln according to claim 1, characterized in that, The inner wall of one end of the front end steel pipe (11) and the middle end steel pipe (12) is provided with a first threaded groove (4), and the outer wall of the other end of the middle end steel pipe (12) and the rear end steel pipe (13) is provided with a threaded joint (5), which is screwed onto the inner wall of the adjacent first threaded groove (4).

4. The tool for replacing broken roller bars in a roller kiln according to claim 1, characterized in that, The inner wall of one end of the rear steel pipe (13) is provided with a second threaded groove (6), and the end of the connecting shaft (31) near the rotating handle (33) is screwed onto the inner wall of the second threaded groove (6).

5. The tool for replacing broken roller bars in a roller kiln according to claim 1, characterized in that, The front steel pipe (11) has a pin hole (7) at one end near the vise assembly (2), and the pin (24) is installed through the inner wall of the pin hole (7).

6. The tool for replacing broken roller bars in a roller kiln according to claim 1, characterized in that, The outer wall of one side of the pusher (32) is in close contact with the outer wall of one end of the connecting rod (23).

7. The tool for replacing broken roller bars in a roller kiln according to claim 1, characterized in that, The steel pipe body (1) is located at one end of the vise assembly (2), and the opening and closing control assembly (3) is located inside the steel pipe body (1).

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