Mesh belt deviation rectifying device of mesh belt furnace

Abstract

The utility model discloses a mesh belt deviation rectifying device of a mesh belt furnace, which comprises a front tensioning roller, a rear tensioning roller, a driving roller and two groups of deviation rectifying mechanisms which are arranged on a rack and are respectively fixed at the front end and the rear end of the rack, the front tensioning roller is installed on the deviation rectifying mechanism at the front end of the rack, the rear tensioning roller is installed on the deviation rectifying mechanism at the rear end of the rack, the front tensioning roller, the rear tensioning roller and the driving roller are connected through a mesh belt, and the driving roller is externally connected with a driving mechanism and can be driven by the driving mechanism to drive the mesh belt to move. By means of the mode, deviation of the mesh belt can be rapidly and efficiently corrected, the stability of the mesh belt is good, and the frequency of secondary deviation after correction is low.

Description

Technical Field

[0001] The utility model relates to the field of high-temperature processing equipment, in particular to a belt deviation rectifying device for a mesh belt furnace. Background Art

[0002] A mesh belt is a commonly used high-temperature resistant conveying mechanism in a kiln furnace, generally made of metal materials such as stainless steel. Since the conveying thread of the mesh belt is relatively long and it has to pass through a high-temperature heating area, the mesh belt is significantly affected by environmental thermal expansion and contraction during actual use, often resulting in uneven stress in each area of the mesh belt, causing a horizontal angle deviation of the conveying surface of the mesh belt. For this deviation, the current conventional method is to install a special deviation rectifying roller below the conveying surface. The deviation rectifying roller is generally installed near the rear end of the mesh belt, so the influence on the front end of the mesh belt is small, the adjustment range is limited, and usually it needs to be readjusted after being used for a period of time, with a high adjustment frequency, which affects the stability of the mesh belt conveying. Content of the Utility Model

[0003] The main technical problem to be solved by the utility model is to provide a belt deviation rectifying device for a mesh belt furnace, which can quickly and efficiently rectify the deviation while ensuring the stability of the mesh belt conveying.

[0004] To solve the above technical problem, a technical solution adopted by the utility model is: to provide a belt deviation rectifying device for a mesh belt furnace, the mesh belt furnace deviation rectifying device includes: a front tensioning roller, a rear tensioning roller, a driving roller and a deviation rectifying mechanism installed on a frame. There are two groups of the deviation rectifying mechanisms, which are respectively fixed at the front end and the rear end of the frame. The front tensioning roller is installed on the deviation rectifying mechanism at the front end of the frame, the rear tensioning roller is installed on the deviation rectifying mechanism at the rear end of the frame. The front tensioning roller, the rear tensioning roller and the driving roller are connected by a mesh belt, and the driving roller is externally connected to a driving mechanism and can drive the mesh belt to move under the drive of the driving mechanism.

[0005] In a preferred embodiment of the present utility model, the deviation rectifying mechanism includes positioning concave blocks, a handwheel, and a screw rod. There are two positioning concave blocks, which are symmetrically fixed on both sides of the frame. Through holes of the same specification are respectively arranged at the same horizontal position at the upper ends of the two arms of the positioning concave blocks. One end of the screw rod is installed with a handwheel, and the other end continuously passes through the two through holes. A front limit nut and a rear limit nut are installed on the screw rod body. The front limit nut and the rear limit nut limit a section of the screw rod between the two arms of the positioning concave block. The front tensioning roller and the rear tensioning roller have the same structure, both including a roller body and a roller shaft. A shaft hole is arranged at the center of the roller body. Threaded holes matching the screw rod body are symmetrically arranged at both ends of the roller shaft. The roller shaft passes through the shaft hole and is connected to the roller body through a bearing. The two ends of the roller shaft are respectively sleeved on the screw rod sections between the two arms of the corresponding side positioning concave block through the threaded holes. Limiting retaining rings are symmetrically installed at positions near both ends of the roller shaft, and the limiting retaining rings are attached to the shaft hole for installation.

[0006] In a preferred embodiment of the present utility model, the driving mechanism includes a driving motor and a reduction sprocket. A transmission wheel is installed at one end of the driving roller. A driving wheel is installed at the power output end of the driving motor. The driving wheel and the reduction sprocket are connected by a primary reduction chain belt. The reduction sprocket and the transmission wheel at the end of the driving roller are connected by a secondary reduction chain belt.

[0007] In a preferred embodiment of the present utility model, a front pressing roller and a rear pressing roller are respectively arranged on both sides of the driving roller. The mesh belt passes through the roller surfaces of the rear pressing roller, the driving roller, and the front pressing roller in an S shape in sequence. The front pressing roller and the rear pressing roller tightly press the mesh belt on the roller surface of the driving roller. In a preferred embodiment of the present utility model, the contact area between the mesh belt and the roller surface of the driving roller is not less than 2 / 3 of the roller surface area of the driving roller.

[0008] In a preferred embodiment of the present utility model, a horizontal roller group is arranged between the driving roller and the rear tensioning wheel. The horizontal roller group includes a first roller and a second roller.

[0009] In a preferred embodiment of the present utility model, a mesh belt support plate is arranged between the driving roller and the front tensioning wheel. The mesh belt passes through a group of tension adjusting rollers before entering the front tensioning wheel through the mesh belt support plate. There are two tension adjusting rollers in total, namely a first tension adjusting roller and a second tension adjusting roller. The mesh belt passes through the tension adjusting roller group in an s shape and then reaches the roller surface of the front tensioning roller. A third roller is installed between the driving roller and the mesh belt support plate, and the position of the third roller is above the end of the mesh belt support plate.

[0010] The beneficial effects of the present utility model are as follows: The present utility model optimizes the mechanism of the existing mesh belt. On the one hand, the tensioning rollers at both ends of the mesh belt are installed on independent deviation rectifying mechanisms, and the tension state of the mesh belt can be adjusted separately from both ends, enabling the purpose of deviation rectification to be achieved quickly and efficiently. On the other hand, a special driving roller is installed on the mesh belt, rather than connecting the driving mechanism to the rear tensioning roller for driving as in traditional mesh belts. In this way, the elasticity of the part of the mesh belt between the rear tensioning roller and the driving roller can be utilized to reduce the direct impact on the tensioning roller caused by the periodic fluctuation of the driving output, thereby improving the stability of the conveying surface during conveying and significantly reducing the frequency of deviation rectification actions during the operation of the mesh belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 is a schematic diagram of the overall structure of a preferred embodiment of the present utility model;

[0012] Figure 2 is a partially enlarged front view of the illustrated embodiment;

[0013] Figure 3 is a front elevation view of the illustrated embodiment;

[0014] The reference numerals of the various components in the drawings are as follows:

[0015] 1. Mesh belt, 2. Deviation rectifying mechanism, 3. Front tensioning roller, 4. Rear tensioning roller, 5. Driving roller, 6. Driving motor, 7. Reduction sprocket, 8. Rear pressure roller, 9. Front pressure roller, 10. Mesh belt support plate, 11. First tension adjusting roller, 12. Second tension adjusting roller, 13. First supporting roller, 14. Second supporting roller, 15. Third supporting roller;

[0016] 201. Handwheel, 202. Screw rod, 203. Positioning concave block, 204. Front limit nut, 205. Rear limit

[0017] nut

[0018] 301. Roller body, 302. Roller shaft, 303. Limit retaining ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The following describes in detail the preferred embodiments of the present utility model with reference to the accompanying drawings, so that the advantages and features of the present utility model can be more easily understood by those skilled in the art, thereby making the protection scope of the present utility model more clearly defined.

[0020] Please refer to Figures 1 to 3 , the embodiments of the present utility model include:

[0021] A belt deviation rectifying device for a mesh belt furnace. The belt deviation rectifying of the mesh belt furnace includes: a front tensioning roller 3, a rear tensioning roller 4, a driving roller 5 and a deviation rectifying mechanism 2 installed on a frame. There are two deviation rectifying mechanisms 2, which are respectively fixed at the front end and the rear end of the frame. The front tensioning roller 3 is installed on the deviation rectifying mechanism 2 at the front end of the frame, and the rear tensioning roller 4 is installed on the deviation rectifying mechanism 2 at the rear end of the frame. The front tensioning roller 3, the rear tensioning roller 4 and the driving roller 5 are connected by a mesh belt 1. The driving roller 3 is externally connected to a driving mechanism and can drive the mesh belt 1 to move under the drive of the driving mechanism.

[0022] The deviation rectifying mechanism 2 includes positioning concave blocks 203, a handwheel 201 and a screw 202. There are two positioning concave blocks 203, which are symmetrically fixed on both sides of the frame. At the same horizontal position at the upper ends of the two arms of the positioning concave block 203, through holes of the same specification are respectively arranged. One end of the screw 202 is installed with a handwheel, and the other end continuously passes through the two through holes. A front limit nut 204 and a rear limit nut 205 are installed on the screw 202 rod body. The front limit nut 204 and the rear limit nut 205 limit a section of the screw 202 between the two arms of the positioning concave block 203. The front tensioning roller 3 and the rear tensioning roller 4 have the same structure, and both include a roller body 301 and a roller shaft 302. A shaft hole is arranged at the center of the roller body 301. At both ends of the roller shaft 302, internally threaded holes matching the screw 302 rod body are symmetrically provided. The roller shaft 302 passes through the shaft hole and is connected to the roller body 301 through a bearing. The two ends of the roller shaft are respectively sleeved on the screw sections between the two arms of the corresponding side of the positioning concave block 203 through the internally threaded holes. In this way, both the front tensioning roller 3 and the rear tensioning roller 4 have the roller shafts separated. During the installation, debugging and use of the mesh belt 1, the corresponding handwheel 201 on the deviation rectifying mechanism 2 of the front tensioning roller 3 or the rear tensioning roller 4 can be rotated as needed to drive the corresponding roller shaft 302 to swing horizontally by the screw 202, so as to rectify the offset mesh belt 1.

[0023] Limit retaining rings 303 are symmetrically installed at positions near both ends of the roller shaft 302, and the limit retaining rings 303 are attached to the shaft hole for installation. By installing the limit retaining rings 303 on the roller shaft 302, it can be prevented that the roller body 301 deviates from its position during the process of rotating relative to the roller shaft 302 driven by the mesh belt 1, resulting in the deviation of the mesh belt 1.

[0024] The driving mechanism includes a driving motor 6 and a reduction sprocket 7. A transmission wheel is installed at one end of the driving roller 5. A driving wheel is installed at the power output end of the driving motor 6. The driving wheel and the reduction sprocket 7 are connected by a first-stage reduction chain belt, and the reduction sprocket 7 and the transmission wheel at the end of the driving roller 5 are connected by a second-stage reduction chain belt. Driving the driving roller 5 through this two-stage reduction structure can reduce the requirements for the specification of the driving motor 6, and the power output is more stable and reliable.

[0025] On both sides of the driving roller 5, a front pressing roller 9 and a rear pressing roller 8 are respectively provided. The mesh belt 1 passes through the roller surfaces of the rear pressing roller 8, the driving roller 5, and the front pressing roller 9 in an S shape in sequence. The front pressing roller 9 and the rear pressing roller 8 tightly press the mesh belt 1 on the roller surface of the driving roller 5, and the contact area between the mesh belt 1 and the roller surface of the driving roller 5 is not less than 2 / 3 of the roller surface area of the driving roller 5. Such a setting can increase the contact area between the driving roller 5 and the mesh belt 1, thereby increasing the acting force between the driving roller 5 and the mesh belt 1 and preventing the roller surface from slipping and unable to drive the mesh belt 1.

[0026] A horizontal idler group is provided between the driving roller 5 and the rear tensioning wheel 4. The horizontal idler group includes a first idler 13 and a second idler 14. On the one hand, through this group of horizontal idlers, the mesh belt 1 can be kept in a horizontal state when leaving the rear tensioning roller 4, enhancing the contact area between the two and facilitating subsequent deviation correction actions. On the other hand, the angle at which the mesh belt 1 enters the driving roller 5 can be adjusted, improving the running stability of the mesh belt 1.

[0027] A mesh belt support plate 10 is provided between the driving roller 5 and the front tensioning wheel 3. The slack part of the mesh belt 1 is supported by the mesh belt support plate 10 to prevent the mesh belt 1 from being damaged due to excessive weight. Before the mesh belt 1 enters the front tensioning wheel 3 through the mesh belt support plate 10, it first passes through a group of tension adjusting rollers. There are two tension adjusting rollers in total, namely a first tension adjusting roller 11 and a second tension adjusting roller 12. The mesh belt 1 passes through the tension adjusting roller group in an s shape and then reaches the roller surface of the front tensioning roller 3. In this way, the tension between the mesh belt 1 and the front tensioning roller 3 can be increased, reducing the influence of the slack of the mesh belt 1. A third idler 15 is installed between the driving roller 5 and the mesh belt support plate 10. The position of the third idler 15 is above the tail end of the mesh belt support plate 10. This can support the mesh belt 10 and prevent the starting-to-slack mesh belt 1 from falling outside the mesh belt support plate 10.

[0028] When the present utility model is actually used, since the roller body 301 and the roller shaft 302 of the front tensioning roller 3 and the rear tensioning roller 4 are designed to be separated, when the problem of mesh belt deviation occurs during actual operation, the deviation angle of the running mesh belt 1 can be corrected according to the tightness state of the mesh belt 1 by rotating the corresponding handwheel 201 and driving the roller shaft 302 to move in the opposite direction of the deviation by the screw 202. Moreover, during actual adjustment, it can be adjusted simultaneously from the front and the back, with a larger adjustment angle range and a more flexible method.

[0029] The above are only the embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied to other related technical fields, shall be similarly included in the patent protection scope of the present utility model.

Claims

1. A mesh belt furnace mesh belt deviation correction device, characterized in that: The deflection correction of the mesh belt furnace includes: a front tensioning roller, a rear tensioning roller, a driving roller and a deflection correction mechanism installed on the frame. The deflection correction mechanism has two groups, which are respectively fixed on the front end and the rear end of the frame. The front tensioning roller is installed on the deflection correction mechanism at the front end of the frame, and the rear tensioning roller is installed on the deflection correction mechanism at the rear end of the frame. The front tensioning roller, the rear tensioning roller and the driving roller are connected through a mesh belt. The driving roller is externally connected to a driving mechanism and can drive the mesh belt to move under the drive of the driving mechanism.

2. The mesh belt deviation correction device for a mesh belt furnace according to claim 1, characterized in that: The correcting mechanism includes a positioning block, a hand wheel and a screw rod, and there are two positioning blocks, which are symmetrically fixed on both sides of the frame. A through hole of the same specification is respectively arranged at the same horizontal position of the upper ends of the two arms of the positioning block, a hand wheel is installed at one end of the screw rod, and the other end continuously passes through the two through holes, a front limit nut and a rear limit nut are installed on the screw rod body, and the front limit nut and the rear limit nut limit a section of the screw rod between the two arms of the positioning block. The front tensioning roller and the rear tensioning roller have the same structure and both include a roller body and a roller shaft. An axial hole is arranged in the center of the roller body, and internal threaded holes matching the screw rod body are symmetrically arranged at both ends of the roller shaft. The roller shaft passes through the axial hole and is connected to the roller body through a bearing, and the two ends of the roller shaft are respectively sleeved on the screw section between the two arms of the positioning block on the corresponding side through the internal threaded holes.

3. The mesh belt deviation correcting device for a mesh belt furnace according to claim 2, characterized in that: The roller shaft is symmetrically installed with limit retaining rings near both ends, and the limit retaining rings are installed adjacent to the shaft hole.

4. The mesh belt deviation correction device for a mesh belt furnace according to claim 1, characterized in that: The driving mechanism includes a driving motor and a reduction sprocket. A transmission wheel is installed at one end of the driving roller, and a driving wheel is installed at the power output end of the driving motor. The driving wheel is connected to the reduction sprocket through a primary reduction chain belt, and the reduction sprocket is connected to the transmission wheel at the end of the driving roller through a secondary reduction chain belt.

5. The mesh belt furnace mesh belt deviation correction device according to claim 1, characterized in that: A front pressure roller and a rear pressure roller are respectively provided on both sides of the driving roller. The mesh belt passes through the roller surfaces of the rear pressure roller, the driving roller and the front pressure roller in an S shape in sequence. The front pressure roller and the rear pressure roller press the mesh belt tightly onto the roller surface of the driving roller.

6. The mesh belt deviation correcting device for a mesh belt furnace according to claim 5, characterized in that: The contact area between the mesh belt and the roller surface of the driving roller is not less than 2 / 3 of the roller surface area of ​​the driving roller.

7. The mesh belt furnace mesh belt deviation correction device according to claim 1, characterized in that: A horizontal roller group is arranged between the driving roller and the rear tensioning wheel, and the horizontal roller group comprises a first roller and a second roller.

8. The mesh belt furnace mesh belt deviation correction device according to claim 1, characterized in that: A mesh belt support plate is arranged between the driving roller and the front tensioning wheel.

9. The mesh belt furnace mesh belt deviation correction device according to claim 8, characterized in that: The mesh belt passes through a group of tension adjustment rollers before entering the front tensioning wheel through the mesh belt support plate. There are two tension adjustment rollers, namely the first tension adjustment roller and the second tension adjustment roller. The mesh belt passes through the tension adjustment roller group in an S shape and reaches the roller surface of the front tensioning roller.

10. The mesh belt deviation correcting device for a mesh belt furnace according to claim 8, characterized in that: A third roller is installed between the driving roller and the mesh belt support plate, and the third roller is located above the rear end of the mesh belt support plate.

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