Deviation detector

Abstract

The utility model discloses a deviation detector, which comprises a machine core, and a displacement detection device is arranged in the machine core. The outer shell is fixedly connected with the movement and is suitable for being connected with an external process connecting piece; the transmission assembly is in contact with the displacement detection device; and the contact is in contact with an external transmission belt and is connected with the transmission assembly so as to transmit the displacement to the displacement detection device through the transmission assembly. According to the utility model, an external object is contacted with the contact, and the contact drives the transmission assembly and the displacement detection device to trigger, so that the warning function is automatically triggered; when an external object is far away from the contact, the transmission assembly drives the contact to be far away from the displacement detection device and is automatically converted into a normal indicating lamp mode. According to the utility model, a deviated object can be detected in real time, a warning function is correspondingly realized, and the detection efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field related to a series of detection mechanical equipment products, in particular to a deviation detector. Background Art

[0002] As a high-tech product, the deviation switch is used to detect the deviation of the conveyor belt of a belt conveyor. It is a safety protection device that automatically alarms and shuts down the conveyor belt in the event of deviation. The deviation switch is used in conventional belt conveyors; underground and cableway-supported belt conveyors; ship loading and unloading systems; stacking / reclaiming conveyors; inclined and shuttle conveyors; cranes, excavators, and boom limits; skirt feeders / conveyors; heavy-duty limit switches detect the deviation of the belt and are a protection device that automatically alarms and shuts down the belt conveyor. It is widely used in various belt conveying equipment in the fields of metallurgy, coal, cement and building materials, mining, electricity, ports, metallurgy, chemical industry, etc. The technical design issues of the deviation switch mainly include the following four aspects:

[0003] 1: Sensing technology: The deviation switch usually monitors the operating status of the equipment through sensors installed on the equipment. Common sensing technologies include photoelectric sensors, pressure sensors, vibration sensors, etc., which are used to detect the position, vibration, pressure and other parameters of the equipment.

[0004] 2. Control System: The deviation switch is connected to the equipment's control system. Once an abnormality is detected, it sends a signal to the control system, triggering a shutdown command. The control system is usually composed of a PLC (Programmable Logic Controller) or other controller, which performs logical judgment and executes instructions.

[0005] 3. Mechanical Design: The design of the deviation switch must consider the stability and sensitivity of the mechanical structure to ensure accurate detection of abnormal conditions such as deviation during operation. Mechanical design includes aspects such as the transmission structure, fixing method, and installation location.

[0006] 4: Software algorithm: Some deviation switches may also use certain software algorithms to identify the operating status of the equipment, such as image recognition algorithms, pattern recognition algorithms, etc., to improve the accuracy and sensitivity of monitoring.

[0007] The industrial technology background of the deviation switch involves multiple aspects such as sensing technology, control system, mechanical design and software algorithm. Through the comprehensive application of these technical means, the safe operation of industrial production equipment can be effectively guaranteed.

[0008] Due to the diverse application scenarios of the deviation switch, it is inevitable that it will be exposed to some harsh working conditions, such as dusty environments. This will greatly test the accuracy and service life of the deviation switch in long-term use. Utility Model Content

[0009] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a deviation detector.

[0010] In order to achieve the above-mentioned purpose, the present utility model adopts the following technical solutions: a deviation detector, which includes a movement with a displacement detection device provided inside;

[0011] An outer shell, fixedly connected to the movement and suitable for connecting to an external process connection;

[0012] a transmission assembly in contact with the displacement detection device;

[0013] a contactor, contacting the external transmission belt and connected to the transmission assembly, so as to transmit the displacement to the displacement detection device via the transmission assembly;

[0014] The sealing structure is sleeved on the outside of the transmission component and connected between the outer shell and the contacts.

[0015] As a preferred solution of the deviation detector of the utility model, wherein: the transmission assembly includes a transmission rod and a damping member;

[0016] One end of the transmission rod is connected to the contact, and the other end is in contact with the displacement detection device;

[0017] The damping element is sleeved on the transmission rod.

[0018] As a preferred solution of the deviation detector of the utility model, wherein: the damping member includes a spring;

[0019] The spring, the connection ends with the outer shell and the contact are provided with low-temperature grease.

[0020] As a preferred solution of the deviation detector of the present invention, the damping member is a quenched high-carbon steel structural member.

[0021] As a preferred solution of the deviation detector of the present invention, the sealing structure is a lip-shaped sealing ring.

[0022] As a preferred solution of the deviation detector of the present invention, the contact is an integrally formed structure of alloy duplex stainless steel.

[0023] As a preferred solution of the deviation detector of the present invention, the displacement detection device includes a micro switch and a trigger; the transmission component is in contact with the trigger, and the micro switch is actuated by the trigger.

[0024] As a preferred solution of the deviation detector of the utility model, wherein: a main control circuit board is also provided inside the movement; the main control circuit board is connected to the displacement detection device;

[0025] The main control circuit board and displacement detection device are encapsulated in the movement.

[0026] As a preferred solution of the deviation detector of the utility model, wherein: the main control circuit board includes a voltage switch circuit; the voltage switch circuit is connected to the trigger signal output end of the displacement detection device and the voltage input end of the indicator light;

[0027] The main control circuit board also includes a timing interrupt circuit; the timing interrupt circuit is connected to the voltage switch circuit.

[0028] As a preferred solution of the deviation detector of the present invention, a square flange is provided on the outer fixing sleeve of the outer shell.

[0029] Compared with the prior art, the beneficial effects of the present invention are: a lip-shaped sealing ring is used on the outside of the transmission component to protect and seal the transmission device for connecting and unloading, so that the entire machine can be used in high dust environments, ensuring the use accuracy and service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is an overall schematic diagram of the utility model.

[0031] Figure 2 This is a cross-sectional view of the utility model

[0032] Figure 3 This is a schematic diagram of the main control circuit of the present utility model.

[0033] Figure 4 This is a schematic diagram of the output circuit of the utility model.

[0034] Figure 5 This is a circuit diagram of the power supply part of the utility model. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0036] Reference Figure 1-5 The deviation detector shown includes: a movement 1, in which a displacement detection device 2 is provided;

[0037] The outer shell 3 is fixedly connected to the core 1 and is suitable for connecting to an external process connection part;

[0038] The transmission assembly 4 contacts the displacement detection device 2;

[0039] The contact 5 contacts the external transmission belt and is connected to the transmission assembly 4 to transmit the displacement to the displacement detection device 2 via the transmission assembly 4;

[0040] The sealing structure 6 is sleeved on the outside of the transmission assembly 4 and connected between the outer shell 3 and the contact 5 .

[0041] Preferably, when the external transmission belt or external object or target deviates, it will collide with the contact 5, thereby driving the transmission component 4 to contact the movement detection device 2, and the movement detection device 2 will perform a corresponding warning function.

[0042] Furthermore, the transmission assembly 4 includes a transmission rod 41 and a damping member 42;

[0043] One end of the transmission rod 41 is connected to the contact 5, and the other end is in contact with the displacement detection device 2;

[0044] The damping member 42 is sleeved on the transmission rod 41 .

[0045] Preferably, after the contact 5 is hit, it will drive the transmission rod 41 to move, and the transmission rod 41 will contact the movement detection device 2, and the movement detection device 2 will produce a corresponding warning effect; when the target object is separated from the contact 5, the damping member 42 can be used to drive the contact 5 and the transmission rod 41 back to the initial position, so that the transmission rod 41 is away from the movement detection device 2.

[0046] Furthermore, the damping member 42 includes a spring 421;

[0047] The spring 421 and the connection ends with the outer shell 3 and the contact 5 are provided with low-temperature grease, thereby ensuring the mechanical transmission of the whole machine in a low-temperature environment of -40°C.

[0048] Preferably, by providing low-temperature grease, it can be ensured that the contact 5 will not get stuck or become unable to retract during the retraction process.

[0049] Furthermore, the damping member 42 is a quenched high carbon steel structural member. The high carbon steel material is used and quenched and tempered during processing to ensure hardness and toughness.

[0050] Preferably, by configuring the spring 421 as a quenched high-carbon steel structural member, the service life of the spring can be ensured, and the spring can be prevented from breaking and causing the inability to extend or retract.

[0051] Furthermore, the sealing structure 6 is a lip-shaped sealing ring, which can reduce the ingress of fine dust and improve the effect of the deviation detector. The use of the lip-shaped sealing ring allows the sealing structure 6 to fit more closely to the transmission assembly 4, thereby achieving a better sealing effect.

[0052] Furthermore, the contact 5 is an integrally formed structure of alloy duplex stainless steel, and thus can withstand high-intensity impact and long-term friction.

[0053] Furthermore, the displacement detection device 2 includes a micro switch 21 and a trigger 22 ; the transmission assembly 4 contacts the trigger 22 , and the trigger 22 drives the micro switch 21 to operate.

[0054] Preferably, when the transmission rod 41 is extended or retracted, it contacts the trigger 22 , and after the trigger 22 is triggered, the micro switch 21 is linked to operate.

[0055] Furthermore, a main control circuit board 7 is provided inside the movement 1; the main control circuit board 7 is connected to the displacement detection device 2;

[0056] The main control circuit board 7 and the displacement detection device 2 are potted in the movement 1. In this solution, a composite potting process is adopted, such as using AB glue (jelly glue) + epoxy resin glue for compound potting, so that the protection level can reach IP67-IP68.

[0057] Furthermore, the main control circuit board 7 includes a voltage switch circuit 71; the voltage switch circuit 71 is connected to the trigger signal output terminal of the displacement detection device 2 and the voltage input terminal of the indicator light 72;

[0058] The main control circuit board 7 further includes a timing interrupt circuit 73 ; the timing interrupt circuit 73 is connected to the voltage switch circuit 71 .

[0059] Preferably, during the working process, the power adapter provides a 24V input voltage, and the voltage regulator chip converts the 24V voltage into a 3.3V voltage to power the main control circuit board 7 and the indicator light 72, and the indicator light is always on; when the object touches the contact 5, the contact 5 drives the transmission rod 41 to contact and trigger the trigger 22, and the trigger 22 links the micro switch 21 to operate; the timing interrupt circuit 73 in the main control circuit board 7 starts to interrupt the timing, and when the touch time exceeds 3 seconds, the PNP chip port in the voltage switch circuit 71 will output a 3V voltage to control the NPN and PNP transistors to output a 23.2V signal voltage, output a signal, and the indicator light also starts to flash, warning that the target object has moved; when the target object is away from the contact 5, the damping member 42 is used to drive the transmission rod 41 and the contact 5 to move, so that the transmission rod 41 is away from the displacement detection device 2; at this time, the voltage switch circuit 71 stops the signal output, the indicator light returns to its initial state, and remains always on.

[0060] Furthermore, a square flange 9 is fixedly mounted outside the outer shell 3 .

[0061] Preferably, by providing a square flange 9, the outer shell 3 can be fixed to ensure that the transmission assembly 4 and the contact 5 can move.

[0062] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A deviation detector, characterized in that: include A movement (1) is provided with a displacement detection device (2) therein; An outer shell (3) is fixedly connected to the core (1) and is suitable for connecting to an external process connection part; a transmission assembly (4) in contact with the displacement detection device (2); A contact (5) is in contact with an external transmission belt and is connected to the transmission assembly (4) to transmit the displacement to the displacement detection device (2) via the transmission assembly (4); The sealing structure (6) is sleeved on the outside of the transmission component (4).

2. The deviation detector according to claim 1, characterized in that: The transmission assembly (4) includes a transmission rod (41) and a damping member (42); One end of the transmission rod (41) is connected to the contact (5), and the other end is in contact with the displacement detection device (2); The damping member (42) is sleeved on the transmission rod (41).

3. The deviation detector according to claim 2, characterized in that: The damping member (42) includes a spring (421); The spring (421) is provided with low-temperature grease at the connection end with the outer shell (3) and the contact (5).

4. The deviation detector according to claim 2, characterized in that: The damping member (42) is a quenched high-carbon steel structural member.

5. The deviation detector according to claim 1, characterized in that: The sealing structure (6) is a lip-shaped sealing ring.

6. The deviation detector according to claim 1, characterized in that: The contact (5) is an integrally formed structure of alloy duplex stainless steel.

7. The deviation detector according to claim 1, characterized in that: The displacement detection device (2) comprises a micro switch (21) and a trigger (22); the transmission assembly (4) contacts the trigger (22), and the trigger (22) drives the micro switch (21) to operate.

8. The deviation detector according to claim 1, characterized in that: A main control circuit board (7) is also provided inside the movement (1); the main control circuit board (7) is connected to the displacement detection device (2); The main control circuit board (7) and the displacement detection device (2) are encapsulated in the movement (1).

9. The deviation detector according to claim 8, characterized in that: The main control circuit board (7) includes a voltage switch circuit (71); the voltage switch circuit (71) is connected to the trigger signal output end of the displacement detection device (2) and the voltage input end of the indicator light (72); The main control circuit board (7) further comprises a timing interrupt circuit (73); the timing interrupt circuit (73) is connected to the voltage switch circuit (71).

10. The deviation detector according to claim 1, characterized in that: The outer fixing sleeve of the outer shell (3) is provided with a square flange (9).

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