Roller rod breakage protection device for roller kiln

Abstract

The utility model discloses a roller rod fracture protection device for a roller kiln, which comprises a connecting groove arranged on a roller kiln main body, a connecting disc is arranged in the connecting groove, a first mounting cavity is arranged in the connecting disc, a connecting seat is arranged in the first mounting cavity, and a second mounting cavity is arranged in the connecting seat. Two compression springs are arranged in the first mounting cavity, the two ends of each compression spring are fixedly connected with the connecting disc and the connecting base correspondingly, and a roller bar is arranged on the inner side of the roller kiln body; the supporting plates are arranged on the inner side of the roller kiln body and arranged on the two sides of the roller bar, the roller bar of the roller kiln is movably connected with the compression springs through the connecting bases, the installed roller bar has a buffering effect through the compression springs, impact force can be released when materials are placed on the roller bar, the load of the roller bar is reduced, and the roller bar is protected. The roller is effectively prevented from being bent and fractured, and the service life of the roller is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of roller kiln, concretely to a roller kiln roller stick fracture protection device. BACKGROUND

[0002] The roller kiln is a continuous firing kiln, and is a tunnel kiln with rotating rollers as a blank carrying tool. The roller kiln is mainly used for the production of ceramic building materials such as ceramic tiles. The roller rods in the roller kiln are rotated by driving equipment to transport the materials distributed at intervals on the roller rods. The roller kiln is in a high-temperature state for a long time. The roller rods may be broken during a long period of use. The breaking of the roller rods may cause the materials to tilt downward during the advancing process, collide with the subsequent roller rods, and stop advancing. As a result, the sintered materials may be stacked, and even a kiln blocking accident may occur. The kiln blocking may break a large number of roller rods, resulting in serious economic losses.

[0003] Chinese patent publication No. CN110906735A, authorized on March 24, 2020, discloses a roller kiln roller stick fracture protection device. In order to solve the problem that the roller kiln roller stick does not have a protection function after breaking, the following scheme is proposed. The device includes two mounting racks, two roller rods are installed on the mounting racks through bearings, and the roller rods are distributed at equal distances in the horizontal direction. A first supporting plate is installed between the two mounting racks through bolts and is located directly below the roller rods. Second supporting plates are arranged on both sides of the bottom of the circumferential outer wall of the roller rod. In the present invention, when the roller rod breaks, the position of the breaking point will drop and touch the auxiliary supporting block. The limiting rod is retracted by the reset spring. The auxiliary supporting block is lifted by the connecting spring, so that the position of the broken roller rod is raised to a position close to the initial state. The supporting effect of the supporting plate on the broken roller rod is improved, and the protection effect of the device on the broken roller rod is improved.

[0004] The existing roller kiln roller stick is fixedly installed. The rotating roller stick does not have a buffering effect. The impact force cannot be released when the materials are placed on the roller stick. The roller stick may be broken due to excessive instantaneous load, which affects the material transportation and reduces the service life of the roller stick. The device cannot meet the use requirements. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a roller kiln roller stick fracture protection device to solve the problem that the existing roller kiln roller stick is fixedly installed, the rotating roller stick does not have a buffering effect, the impact force cannot be released when the materials are placed on the roller stick, the roller stick may be broken due to excessive instantaneous load, which affects the material transportation and reduces the service life of the roller stick, and the device cannot meet the use requirements.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a roller kiln roller stick fracture protection device, which comprises a roller kiln main body and further comprises:

[0007] A connecting groove is arranged on the roller kiln body, an inner part of the connecting groove is arranged with a connecting disc, and the connecting disc is in sliding connection with the roller kiln body, an inner part of the connecting disc is arranged with a first mounting cavity, an inner part of the first mounting cavity is arranged with a connecting seat, and the connecting seat is in sliding connection with the connecting disc, an inner part of the first mounting cavity is arranged with a compression spring, two compression springs are arranged above and below the connecting seat, and the two ends of the compression spring are fixedly connected with the connecting disc and the connecting seat respectively, and an inner side of the roller kiln body is arranged with a roller bar, and both ends of the roller bar are in rotary connection with the connecting seat.

[0008] A supporting plate is arranged on an inner side of the roller kiln body, and the supporting plate is fixedly connected with the roller kiln body, and the supporting plate is arranged on both sides of the roller bar.

[0009] Preferably, an upper end of the supporting plate is arranged with a roller, and the roller is in rotary connection with the supporting plate, and an upper end of the roller is arranged in flush with an upper end of the roller bar.

[0010] Preferably, a lower part of the roller bar is arranged with a falling prevention plate, and the falling prevention plate is fixedly connected with the roller kiln body, and a cross section of the falling prevention plate is arranged in an arc shape.

[0011] Preferably, an inner part of the falling prevention plate is arranged with a second mounting cavity, four second mounting cavities are arranged, and the four second mounting cavities are equidistantly arranged on the falling prevention plate, an inner part of each of the four second mounting cavities is arranged with a movable block, and the movable block is in sliding connection with the falling prevention plate, a bottom part of the second mounting cavity is arranged with a pressure sensor, and the pressure sensor is fixedly connected with the falling prevention plate, the pressure sensor is arranged below the movable block, and the pressure sensor is arranged without contact with the movable block, an outer part of the pressure sensor is arranged with a spring sleeve, and the spring sleeve is arranged in an inner part of the second mounting cavity, and both ends of the spring sleeve are fixedly connected with the falling prevention plate and the movable block respectively.

[0012] Preferably, a side wall of the connecting seat is arranged with a sliding groove, two sliding grooves are arranged, and the two sliding grooves are arranged on both sides of the connecting seat, an inner part of the first mounting cavity is arranged with a first sliding strip, two first sliding strips are arranged, and the first sliding strips are fixedly connected with the connecting disc, one end of the first sliding strip extends to an inner part of the sliding groove, and the first sliding strip is in sliding connection with the connecting seat.

[0013] Preferably, a lower end of the connecting disc is arranged with a second sliding strip, and the second sliding strip is fixedly connected with the connecting disc, and the second sliding strip is in sliding connection with the roller kiln body.

[0014] Preferably, an upper end of the connecting disc is arranged with a positioning hole, an upper part of the roller kiln body is arranged with an electric push rod, and the electric push rod is fixedly connected with the roller kiln body, the electric push rod is arranged above the connecting groove, and a telescopic end of the electric push rod is correspondingly arranged with the positioning hole.

[0015] Compared with the prior art, the utility model has the beneficial effects that:

[0016] 1. The utility model discloses a device through the setting of the supporting plate, the connecting disc, the connecting groove, the first installation cavity, the connecting seat and the compression spring, the connecting groove is connected with the roller kiln main body slidingly, and the roller bar mechanism is convenient to disassemble and replace, the both ends of the roller bar are connected with the connecting disc through the connecting seat and the compression spring, the installed roller bar has the buffering effect through the compression spring, plays the protection effect when material contacts the roller bar, releases the acting force, the supporting plate plays the supporting effect to the material conveying, can avoid the material conveying and the forward inclination increase the roller bar load, plays the protection effect to the roller bar, effectively prevents the roller bar breakage;

[0017] 2. The utility model discloses a device through the setting of the anti -falling board, the second installation cavity, the movable block, the pressure sensor and the spring cover, the spring cover exerts the thrust to the movable block, and the movable block is separated from the pressure sensor, and the broken roller bar falls on the anti -falling board and contacts the movable block, and the movable block is pressed, and the spring cover is compressed, and the movable block contacts the pressure sensor and triggers the warning, can accurately replace the damaged roller bar and overhaul;

[0018] 3. The utility model discloses a device through the setting of the electric push rod, the positioning hole and the second slide, when the second slide is connected with the roller kiln main body when the connecting disc is inserted into the connecting groove, plays the guiding effect, and the installed connecting disc is prepositioned, and the telescopic end of the electric push rod is inserted into the positioning hole and is connected with the connecting disc, and the installed connecting disc plays the limiting effect, guarantees the connecting disc connection firmness. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the whole structure schematic diagram of the utility model;

[0020] Figure 2 It is the sectional view of the utility model;

[0021] Figure 3 It is the Figure 2 A area local enlarged view of the utility model;

[0022] Figure 4 It is the connecting seat and connecting disc connection structure diagram of the utility model;

[0023] Figure 5 It is the supporting plate and anti -falling board and roller bar connection relation diagram of the utility model.

[0024] In the figure: 1, roller kiln main body; 2, roller; 3, supporting plate; 4, roller; 5, connecting disc; 6, electric push rod; 7, connecting groove; 8, anti-falling plate; 9, connecting seat; 10, first installation cavity; 11, compression spring; 12, positioning hole; 13, sliding groove; 14, first sliding bar; 15, second installation cavity; 16, movable block; 17, pressure sensor; 18, spring sleeve; 19, second sliding bar. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments only represent some of the embodiments of the utility model, rather than all the embodiments.

[0026] Please refer to Figures 1-5 An embodiment provided by the utility model: a roller kiln roller fracture protection device, comprising a roller kiln main body 1, further comprising:

[0027] The connecting groove 7 is arranged on the roller kiln main body 1, the connecting groove 7 is internally provided with the connecting disc 5, the connecting disc 5 is in sliding connection with the roller kiln main body 1, the connecting disc 5 is internally provided with the first installation cavity 10, the first installation cavity 10 is internally provided with the connecting seat 9, the connecting seat 9 is in sliding connection with the connecting disc 5, the first installation cavity 10 is internally provided with the compression spring 11, the compression spring 11 is provided with two, the two compression springs 11 are arranged above and below the connecting seat 9, the two ends of the compression spring 11 are fixedly connected with the connecting disc 5 and the connecting seat 9 respectively, the inner side of the roller kiln main body 1 is provided with the roller 2, and the two ends of the roller 2 are in rotary connection with the connecting seat 9.

[0028] The supporting plate 3 is arranged on the inner side of the roller kiln main body 1, and the supporting plate 3 is fixedly connected with the roller kiln main body 1, and the supporting plate 3 is arranged on the two sides of the roller 2.

[0029] When in use: the material is placed on the roller 2, the material conveying is realized by rotating the roller 2, the two ends of the roller 2 are connected with the connecting disc 5 through the connecting seat 9 and the compression spring 11, the installed roller 2 has a buffering effect through the compression spring 11, and the supporting plate 3 plays a supporting role on the conveyed material, so that the material conveying is better realized.

[0030] Please refer to Figure 1 and Figure 5 The upper end of the supporting plate 3 is provided with the roller 4, and the roller 4 is in rotary connection with the supporting plate 3, the upper end of the roller 4 is arranged in flush with the upper end of the roller 2, and the friction between the material and the supporting plate 3 is reduced through the roller 4, so that the material conveying is better realized.

[0031] Please refer toFigure 1 、 Figure 2 and Figure 5 , the lower part of the roller bar 2 is provided with a falling prevention plate 8, and the falling prevention plate 8 is fixedly connected with the roller kiln body 1, the cross section of the falling prevention plate 8 is arc-shaped, and the broken and damaged roller bar 2 is collected through the falling prevention plate 8.

[0032] Please refer to Figure 2 and Figure 5 , the inside of the falling prevention plate 8 is provided with four second installation cavities 15, and the four second installation cavities 15 are equidistantly arranged on the falling prevention plate 8, the inside of the four second installation cavities 15 is provided with a movable block 16, and the movable block 16 is slidably connected with the falling prevention plate 8, the bottom of the second installation cavity 15 is provided with a pressure sensor 17, and the pressure sensor 17 is fixedly connected with the falling prevention plate 8, the pressure sensor 17 is arranged below the movable block 16, and the pressure sensor 17 is arranged without contact with the movable block 16, the outside of the pressure sensor 17 is provided with a spring sleeve 18, and the spring sleeve 18 is arranged in the second installation cavity 15, the two ends of the spring sleeve 18 are fixedly connected with the falling prevention plate 8 and the movable block 16 respectively, the broken roller bar 2 falls on the falling prevention plate 8 and contacts with the movable block 16, and the movable block 16 is pressed to compress the spring sleeve 18, the movable block 16 contacts with the pressure sensor 17 to trigger the alarm, and the damaged roller bar 2 can be accurately replaced and repaired.

[0033] Please refer to Figure 2 , Figure 3 and Figure 4 , the side wall of the connecting seat 9 is provided with a sliding groove 13, the sliding groove 13 is provided with two, and the two sliding grooves 13 are arranged on the two sides of the connecting seat 9, the inside of the first installation cavity 10 is provided with a first sliding strip 14, the first sliding strip 14 is provided with two, and the first sliding strip 14 is fixedly connected with the connecting disc 5, one end of the first sliding strip 14 extends to the inside of the sliding groove 13, and the first sliding strip 14 is slidably connected with the connecting seat 9, the sliding groove 13 and the first sliding strip 14 play a guiding and limiting role for the fine adjustment of the connecting seat 9, and the stability of the connection between the roller bar 2 and the connecting seat 9 is improved.

[0034] Please refer to Figure 1 , Figure 2 and Figure 4 , the lower end of the connecting disc 5 is provided with a second sliding strip 19, and the second sliding strip 19 is fixedly connected with the connecting disc 5, the second sliding strip 19 is slidably connected with the roller kiln body 1, and the second sliding strip 19 plays a guiding role when the connecting disc 5 is inserted into the connecting groove 7 and connected with the roller kiln body 1, and the connecting disc 5 is pre-positioned.

[0035] Please refer to Figure 1 , Figure 2 and Figure 3The upper end of the connecting disc 5 is provided with a positioning hole 12, the upper portion of the roller kiln body 1 is provided with an electric push rod 6, and the electric push rod 6 is fixedly connected with the roller kiln body 1, the electric push rod 6 is arranged above the connecting groove 7, and the telescopic end of the electric push rod 6 is arranged in correspondence with the positioning hole 12, the telescopic end of the electric push rod 6 is inserted into the positioning hole 12 to be connected with the connecting disc 5, the installed connecting disc 5 is limited, and the connecting firmness of the connecting disc 5 is guaranteed.

[0036] Working principle: the material is placed on the roller 2, the material is conveyed by rotating the roller 2, the two ends of the roller 2 are connected with the connecting disc 5 through the connecting seat 9 and the compression spring 11, the compression spring 11 makes the installed roller 2 have a buffering effect, and the roller 2 has a protective effect when the material contacts the roller 2, the force is relieved and released, the supporting plate 3 and the roller 4 support the conveyed material, can avoid the material conveying to tilt and increase the load of the roller 2, and has a protective effect on the roller 2, effectively prevents the roller from being broken; the broken roller 2 falls on the anti-falling plate 8 and contacts the movable block 16, the movable block 16 is pressed, the spring sleeve 18 is compressed, the movable block 16 contacts the pressure sensor 17 and triggers an alarm, and the damaged roller 2 can be accurately replaced and repaired.

[0037] The contents not described in detail in the specification belong to the prior art known to those skilled in the art.

[0038] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A roller kiln roller bar breakage protection device comprising a roller kiln body (1), characterized in that, Also includes: The connecting groove (7) is arranged on the roller kiln body (1), the inside of the connecting groove (7) is provided with a connecting disc (5), and the connecting disc (5) is in sliding connection with the roller kiln body (1), the inside of the connecting disc (5) is provided with a first mounting cavity (10), the inside of the first mounting cavity (10) is provided with a connecting seat (9), and the connecting seat (9) is in sliding connection with the connecting disc (5), the inside of the first mounting cavity (10) is provided with a compression spring (11), the compression spring (11) is provided with two, and the two compression springs (11) are arranged above and below the connecting seat (9), the two ends of the compression spring (11) are fixedly connected with the connecting disc (5) and the connecting seat (9) respectively, the inner side of the roller kiln body (1) is provided with a roller bar (2), and the two ends of the roller bar (2) are rotatably connected with the connecting seat (9); The supporting plate (3) is arranged on the inner side of the roller kiln body (1), and the supporting plate (3) is fixedly connected with the roller kiln body (1), and the supporting plate (3) is arranged on the two sides of the roller bar (2).

2. A roller bar breakage protection device for a roller hearth kiln as defined in claim 1, characterized in that: The upper end of the supporting plate (3) is provided with a roller (4), and the roller (4) is rotatably connected with the supporting plate (3), and the upper end of the roller (4) is flush with the upper end of the roller bar (2).

3. A roller bar breakage protection device for a roller hearth kiln as defined in claim 1, characterized in that: The lower side of the roller bar (2) is provided with a falling prevention plate (8), and the falling prevention plate (8) is fixedly connected with the roller kiln body (1), and the cross section of the falling prevention plate (8) is arranged in an arc shape.

4. A roller bar breakage protection device for a roller hearth kiln as defined in claim 3, characterized in that: The inside of the falling prevention plate (8) is provided with a second mounting cavity (15), the second mounting cavity (15) is provided with four, and the four second mounting cavities (15) are equidistantly arranged on the falling prevention plate (8), the inside of the four second mounting cavities (15) is provided with a movable block (16), and the movable block (16) is in sliding connection with the falling prevention plate (8), the bottom of the second mounting cavity (15) is provided with a pressure sensor (17), and the pressure sensor (17) is fixedly connected with the falling prevention plate (8), the pressure sensor (17) is arranged below the movable block (16), and the pressure sensor (17) is arranged without contacting the movable block (16), the outside of the pressure sensor (17) is provided with a spring sleeve (18), and the spring sleeve (18) is arranged in the second mounting cavity (15), and the two ends of the spring sleeve (18) are fixedly connected with the falling prevention plate (8) and the movable block (16) respectively.

5. A roller bar breakage protection device for a roller hearth kiln as defined in claim 1, characterized in that: The side wall of the connecting seat (9) is provided with a sliding groove (13), the sliding groove (13) is provided with two, and the two sliding grooves (13) are arranged on the two sides of the connecting seat (9), the inside of the first mounting cavity (10) is provided with a first sliding bar (14), the first sliding bar (14) is provided with two, and the first sliding bar (14) is fixedly connected with the connecting disc (5), one end of the first sliding bar (14) extends into the inside of the sliding groove (13), and the first sliding bar (14) is in sliding connection with the connecting seat (9).

6. A roller bar breakage protection device for a roller hearth kiln as defined in claim 1, characterized in that: The lower end of the connecting disc (5) is provided with a second sliding bar (19), and the second sliding bar (19) is fixedly connected with the connecting disc (5), and the second sliding bar (19) is in sliding connection with the roller kiln body (1).

7. A roller bar breakage protection device for a roller hearth kiln as defined in claim 1, wherein: The upper end of the connecting plate (5) is provided with a positioning hole (12), the upper portion of the roller kiln body (1) is provided with an electric push rod (6), and the electric push rod (6) is fixedly connected with the roller kiln body (1), the electric push rod (6) is arranged above the connecting groove (7), and the telescopic end of the electric push rod (6) is correspondingly arranged with the positioning hole (12).

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