A roller fracture detection device

Abstract

The invention discloses a roller bar fracture detection device, comprising a guide rod, an elastic member, a sleeve and a base, wherein the sleeve is connected to the base, a cavity is arranged in the base, the cavity and the sleeve are communicated, a trigger member is connected to the upper part of the guide rod, the lower part of the guide rod passes through the sleeve and enters the cavity, a magnetic reed switch is connected to the bottom end of the cavity, the magnetic reed switch is used to be electrically connected to a controller, a magnet is connected to the bottom end of the guide rod, one end of the elastic member is connected to the sleeve, and the other end is connected to a positioning pad, and the positioning pad is connected to the guide rod. The invention can effectively realize the detection of roller bar fracture failure, has a simple structure, is easy to operate, and greatly improves the detection efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of roller detection, and in particular to a roller fracture detection device. Background Art

[0002] The roller furnace is a device that uses the continuous rotation of rollers to achieve product firing and transportation. The rollers are important components of the roller furnace. Once the rollers are broken, it will directly affect the production of the product. Therefore, during the production process, a detection device is required to perform real-time detection of the rollers. However, the existing detection device has a complex structure and low detection efficiency and cannot meet the use requirements. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a roller breakage detection device, which can effectively detect roller breakage failures, has a simple structure, is easy to operate, and is conducive to improving detection efficiency.

[0004] In order to solve the above technical problems, the technical solutions provided by the present invention are as follows:

[0005] A roller fracture detection device comprises a guide rod, an elastic member, a sleeve and a base, wherein the sleeve is connected to the base, a cavity is arranged in the base, the cavity and the sleeve are communicated, a trigger member is connected to the upper part of the guide rod, the lower part of the guide rod passes through the sleeve and enters the cavity, a reed switch is connected to the bottom end of the cavity, the reed switch is used to be electrically connected to a controller, a magnet is connected to the bottom end of the guide rod, one end of the elastic member is connected to the sleeve, and the other end is connected to a positioning pad, and the positioning pad is connected to the guide rod.

[0006] In one embodiment, the trigger member is a roller, and the roller is connected to the guide rod via a rotating shaft.

[0007] In one embodiment, the roller is a non-metallic roller.

[0008] In one embodiment, the reed switch includes a reed switch, and both ends of the reed switch are connected to wiring terminals.

[0009] In one embodiment, the elastic member is a spring, and the spring is sleeved on the guide rod. One end of the spring is connected to the sleeve, and the other end is connected to the positioning pad.

[0010] In one embodiment, an external thread is provided on the outer wall of the sleeve, and an internal thread is provided on the inner wall of the cavity, and the internal thread and the external thread are screwed together.

[0011] In one embodiment, a nut is connected to the sleeve located outside the base through the external thread.

[0012] In one embodiment, an insulating bushing is further connected inside the sleeve.

[0013] In one embodiment, the insulating bushing is a polyetheretherketone bushing.

[0014] In one embodiment, the controller is electrically connected to an alarm.

[0015] The present invention has the following beneficial effects: the roller breakage detection device of the present invention can effectively detect roller breakage faults, has a simple structure, is easy to operate, and greatly improves the detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a front view of a roller fracture detection device of the present invention;

[0017] Figure 2 yes Figure 1 A left side view of the roller fracture detection device shown;

[0018] Figure 3 yes Figure 1 A bottom view of the roller fracture detection device shown;

[0019] In the figure: 1, trigger member, 2, guide rod, 3, positioning pad, 4, elastic member, 5, sleeve, 6, insulating bushing, 7, nut, 8, base, 81, cavity, 9, reed switch, 91, reed switch, 92, terminal block, 10, magnet. DETAILED DESCRIPTION

[0020] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0021] like Figure 1-Figure 3 As shown, this embodiment discloses a roller fracture detection device, including a guide rod 2, an elastic member 4, a sleeve 5 and a base 8, wherein the sleeve 5 is connected to the base 8, a cavity 81 is arranged in the base 8, the cavity 81 is communicated with the sleeve 5, a trigger member 1 is connected to the upper portion of the guide rod 2, the lower portion of the guide rod 2 passes through the sleeve 5 and enters the cavity 81, a reed switch 9 is connected to the bottom end of the cavity 81, and the reed switch 9 is used to be electrically connected to the controller, a magnet 10 is connected to the bottom end of the guide rod 2, one end of the elastic member 4 is connected to the sleeve 5, and the other end is connected to the positioning pad 3, and the positioning pad 3 is fixed on the guide rod 2.

[0022] Among them, the controller is used to receive the conduction signal of the reed switch 9. Specifically, an arc piece is provided on the roller bar. When the roller bar rotates to make the arc piece contact with the trigger member 1, a thrust is generated on the trigger member 1, so that the trigger member 1 drives the guide rod 2 to descend. When the magnet at the lower part of the guide rod 2 descends to contact with the reed switch 9, the reed switch 9 is closed and turned on, so that the corresponding control circuit in the controller is turned on, that is, the controller receives the conduction signal of the reed switch 9; by recording the number of conductions of the reed switch 9 within a set period, it is possible to determine whether the roller bar is in a broken state. For example, if the roller bar is in a normal state, the number of closures and conductions of the reed switch 9 within the set time period should be 2 times. If it is finally detected that the actual number of closures and conductions of the reed switch 9 within the above-mentioned set time period is less than 2 times, it indicates that the roller bar is broken.

[0023] During the descending process of the guide rod, the elastic member 4 will be in a compressed state. Once the arc piece on the roller rod rotates to be separated from the trigger member 1, the elastic member 4 will use its elastic force to drive the guide rod 2 to rise, so that the guide rod 2 returns to its initial state. At this time, the magnet is away from the reed switch 9, and the reed switch 9 is in the disconnected state.

[0024] The reed switch 9 utilizes a magnetic field to realize on-off operation, has rapid operation, good stability, and a long service life, and is suitable for high-frequency on-off operations.

[0025] In one of the embodiments, the trigger member 1 adopts a roller, which is connected to the guide rod 2 through a rotating shaft. The roller can rotate around the rotating shaft. The rolling contact between the roller and the arc piece on the roller rod can greatly reduce the friction between the two, thereby preventing the generation of magnetic foreign matter, so as to avoid the magnetic foreign matter affecting the product performance, which may cause safety accidents in serious cases.

[0026] In one embodiment, the roller is a non-metallic roller. Since the arc piece on the roller rod is generally made of metal, the use of a non-metallic roller can better prevent the generation of more magnetic foreign matter when the roller and the arc piece come into contact.

[0027] In one embodiment, the reed switch 9 includes a reed switch 91 , both ends of the reed switch 91 are connected to wiring terminals 92 , and the wiring terminals 92 are electrically connected to the controller.

[0028] In one embodiment, the elastic member 4 is a spring, which is sleeved on the guide rod 2. One end of the spring is connected to the sleeve 5, and the other end is connected to the positioning pad 3. This structural connection is convenient and reliable, and the guide rod 2 can guide the spring to prevent the spring from detaching from the guide rod 2.

[0029] The elastic member 4 may also be other elements capable of generating elastic deformation.

[0030] In one embodiment, an external thread is provided on the outer wall of the sleeve 5, and an internal thread is provided on the inner wall of the cavity 81 of the base 8. The internal thread and the external thread are screwed together. The threaded connection method can greatly enhance the connection reliability and sealing of the sleeve 5 and the base 8.

[0031] In one embodiment, a nut 7 is connected to the sleeve 5 outside the base 8 via an external thread, so as to facilitate connection with other components in the roller furnace.

[0032] Furthermore, at least two nuts 7 are connected to the sleeve 5 via external threads.

[0033] Furthermore, the nut 7 is a thin nut.

[0034] In one embodiment, an insulating bushing is further connected inside the bushing to prevent the bushing from conducting electricity.

[0035] In one embodiment, the insulating bushing 6 is made of polyetheretherketone (PEEK) bushing, which has good electrical insulation performance and can maintain good electrical insulation under harsh working conditions such as high temperature and high pressure. In addition, the bushing of this material also has good flame retardancy, high temperature resistance and chemical corrosion resistance.

[0036] In one embodiment, the controller is also electrically connected to the alarm, so that when it is determined that the roller is broken, the alarm is controlled to send an alarm signal, so that the staff can check and handle the broken roller in time.

[0037] The working principle of the roller breakage detection device of this embodiment is as follows: an arc piece is provided on the roller, and the rotation of the roller drives the arc piece to rotate. If the roller is in a normal state, when the arc piece on the roller rotates to contact the trigger member 1, it will push the trigger member 1 and the guide rod 2 to descend together, and when the magnet 10 at the lower part of the guide rod 2 contacts the reed switch 9, the reed switch 9 is closed and turned on; then the roller continues to rotate, and the arc piece gradually separates from the trigger member 1. At this time, the elastic member 4 will use the elastic restoring force it generates to drive the guide rod 2 to rise, and make the magnet 10 away from the reed switch 9, and the reed switch 9 is in an open state; the on and off states of the above-mentioned reed switch 9 will continuously cycle within a time period, that is, the roller in a normal state will make the reed switch 9 turn on for a set number of times within a set period, and once the roller is in a broken state, it cannot normally push the guide rod 2 to descend, and the reed switch 9 will be always in an open state, so that the actual closing and on times of the reed switch 9 within the set time period are less than the above-mentioned set times.

[0038] The method of using the roller fracture detection device of this embodiment is as follows: fix the entire roller fracture detection device at a set position in the roller furnace, and connect the reed switch 9 to the controller. Then, as the roller in the furnace rolls, the reed switch 9 will be turned on or off. By recording the number of times the reed switch 9 is turned on within a set period, it can be determined whether the roller is in a broken state. If it is detected that the actual number of times the reed switch 9 is closed and turned on within the set time period is less than the normal number, it indicates that the roller has been broken.

[0039] The roller breakage detection device of this embodiment can effectively detect roller breakage faults, has a simple structure, is easy to operate, and greatly improves the detection efficiency.

[0040] The above-described embodiments are only preferred embodiments for fully illustrating the present invention, and the protection scope of the present invention is not limited thereto. Equivalent substitutions or changes made by those skilled in the art based on the present invention are within the protection scope of the present invention. The protection scope of the present invention shall be subject to the claims.

Claims

1. A roller fracture detection device, characterized in that: It includes a guide rod, an elastic member, a sleeve and a base, the sleeve is connected to the base, a cavity is arranged in the base, the cavity and the sleeve are communicated, a trigger member is connected to the upper part of the guide rod, the lower part of the guide rod passes through the sleeve and enters the cavity, a reed switch is connected to the bottom end of the cavity, the reed switch is used to be electrically connected to a controller, a magnet is connected to the bottom end of the guide rod, one end of the elastic member is connected to the sleeve, and the other end is connected to a positioning pad, and the positioning pad is connected to the guide rod.

2. The roller fracture detection device according to claim 1, characterized in that: The triggering member is a roller, and the roller is connected to the guide rod via a rotating shaft.

3. The roller fracture detection device according to claim 2, characterized in that: The roller is a non-metal roller.

4. The roller fracture detection device according to claim 1, characterized in that: The reed switch comprises a reed switch, and both ends of the reed switch are connected with wiring terminals.

5. The roller fracture detection device according to claim 1, characterized in that: The elastic member is a spring, which is sleeved on the guide rod, one end of the spring is connected to the sleeve, and the other end is connected to the positioning pad.

6. The roller fracture detection device according to claim 1, characterized in that: An external thread is arranged on the outer wall of the sleeve, and an internal thread is arranged on the inner wall of the cavity, and the internal thread and the external thread are screwed together.

7. The roller fracture detection device according to claim 6, characterized in that: A nut is also connected to the sleeve located outside the base through the external thread.

8. The roller fracture detection device according to claim 1, characterized in that: An insulating bushing is also connected inside the sleeve.

9. The roller fracture detection device according to claim 8, characterized in that: The insulating bushing is a polyetheretherketone bushing.

10. The roller fracture detection device according to claim 1, characterized in that: The controller is electrically connected with an alarm.

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