Rotary valve motor protection mechanism

Abstract

The utility model discloses a rotary valve motor protection mechanism, and particularly relates to the technical field of motor protection, which comprises a valve body, a valve rod is mounted in the valve body, a valve blade is mounted on the valve rod, a code disc is mounted at one end of the valve rod, fixing plates are mounted at the upper end and the lower end of the valve body, a support is mounted on each fixing plate, and a rotating shaft is mounted on the support. A motor body is clamped and fixed to the two supports, the output end of the motor body is connected with a valve rod, a power connection box is installed at the bottom of one fixing plate, a photoelectric sensor matched with a code disc is installed in the power connection box, the photoelectric sensor is connected with a power-off assembly, and a power connection assembly is arranged on one side of the power-off assembly in a matched mode. The rotating speed of the coded disc is detected through the photoelectric sensor, and when the rotating speed of the coded disc becomes slow and reaches a set threshold value due to the fact that the valve blades are clamped, the power-off assembly cuts off power supply of the motor to protect the motor; meanwhile, coaxial connection of the motor and the valve rod can be guaranteed, and the transmission efficiency and the operation stability are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to motor protection technical field more specifically, the utility model relates to a kind of rotary valve motor protection mechanism. BACKGROUND

[0002] In industrial production process, as the important driving equipment of key link such as material conveying, flow control, its stable, reliable operation plays a pivotal role to the efficient operation of entire production system.

[0003] With the continuous improvement of industrial automation, the performance requirements of rotary valve motor are increasingly stringent. However, the existing rotary valve motor faces a series of difficult problems in actual application scenarios. In the material processing process, the valve leaf of rotary valve often encounters material blockage and jamming. Once the valve leaf is jammed, the motor cannot timely perceive and effectively respond, and still maintains the running state, which makes the motor in high load or even overload for a long time. This not only greatly increases the energy consumption of the motor, but also accelerates the wear of internal parts of the motor, resulting in a significant reduction in the service life of the motor. Frequent motor failure not only leads to a straight-line increase in equipment maintenance cost, but also causes interruption of the production process, which brings significant economic loss to the enterprise.

[0004] Some of the published related patent technologies have obvious defects in solving the above problems. The motor operating state detection means adopted by some technologies is too single and has low precision, which cannot timely and accurately capture the subtle changes of motor operating parameters when the valve leaf is jammed, resulting in delay or misjudgment of the abnormal state of the motor. In terms of motor protection mechanism, the power-off measures designed by some patents have slow response speed, which is difficult to quickly cut off the power supply at the early stage of motor overload, so that the motor may be irreversibly damaged during the short overload period. In addition, the traditional rotary valve motor installation structure design is not reasonable, and the connection stability between the motor and the valve body is poor. When the motor operates and vibrates, the valve body cannot vibrate synchronously with the motor, which not only reduces the transmission efficiency, but also causes additional mechanical noise and vibration, further affecting the overall performance and operation stability of the equipment.

[0005] Therefore, a rotary valve motor protection mechanism is proposed. UTILITY MODEL CONTENTS

[0006] In order to overcome the above-mentioned defects of the prior art, the utility model provides a rotary valve motor protection mechanism to solve the problems raised in the above background art.

[0007] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme: a rotary valve motor protection mechanism, including the valve body, the valve rod is installed in the valve body, the valve leaf is installed on the valve rod, the valve rod one end is installed with the code disc, the both ends of valve body are all installed with the fixed plate, a support is installed on each fixed plate, two support clamping fixed have motor body, motor body output end is connected with the valve rod, one fixed plate bottom is installed with the electricity receiving box, the electricity receiving box is installed with the photoelectric sensor who cooperates with the code disc, the photoelectric sensor is connected with the power off component, the power off component one side cooperation is provided with the electricity receiving component.

[0008] Through the electricity receiving component and the power supply end connection of motor body, the power off component is connected with the power supply end, when the electricity receiving component and the power off component meet, the motor body runs, drives the valve rod to rotate, so that the valve leaf rotates in the valve body, so as to discharge, in the process of discharging, the code disc installed on the valve rod rotates synchronously with the valve rod, when the photoelectric sensor detects that the rotating speed of the code disc slows down to reach the set threshold, the power off component runs, and the electricity receiving component is disconnected, so that the power supply of the motor body is disconnected, and the motor body stops running, so that the motor body can be prevented from running in the high load overload state, so that the motor body can be prevented from being burnt out, and the effect of protecting the motor is achieved.

[0009] Preferably, one end of one of the fixed plates is provided with a support on the top, and one end of the other fixed plate is also provided with a support on the bottom, and the two supports are connected to clamp the motor body.

[0010] Preferably, a through hole is formed in the connection between the two fixed plates and the valve body.

[0011] Preferably, the power off component comprises an electric push rod, a first insulating plate, a first electricity receiving terminal and a second electricity receiving terminal, the electric push rod is installed in the electricity receiving box, the first insulating plate is installed on the telescopic end of the electric push rod, the first electricity receiving terminal is installed on one end of the first insulating plate, and the second electricity receiving terminal is installed on the other end of the first insulating plate.

[0012] Preferably, the electricity receiving component comprises a second insulating plate, a third electricity receiving terminal and a fourth electricity receiving terminal, the second insulating plate is installed in the electricity receiving box, the third electricity receiving terminal is installed on one end of the second insulating plate, and the fourth electricity receiving terminal is installed on the other end of the second insulating plate.

[0013] Preferably, the first electricity receiving terminal and the third electricity receiving terminal are correspondingly matched, and the second electricity receiving terminal and the fourth electricity receiving terminal are correspondingly matched.

[0014] The utility model discloses a technical effect and advantage:

[0015] 1. By setting the photoelectric sensor, power-off component and power-on component, when the valve leaf is stuck by materials, the photoelectric sensor detects that the code disc rotation speed slows down to reach the set threshold, the power-off component and the power-on component are disconnected, the motor body power supply is cut off, the motor stops running, avoids the motor running in high load or overload state and burning out, effectively protects the motor and improves the service life of the motor.

[0016] 2. The motor body is clamped and fixed by two supports respectively installed on the upper and lower end fixed plates of the valve body, and a through hole is formed at the connection between the fixed plate and the valve body. Such structure makes the motor body and the valve body connected as a whole, the valve body vibrates synchronously when the motor operates, ensures that the motor body and the valve rod always maintain coaxial connection, improves the transmission efficiency and operation stability, and ensures the normal feeding and discharging of the rotary valve. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0018] Figure 2 It is a schematic diagram of the rotary valve and motor connection structure of the utility model.

[0019] Figure 3 It is a schematic diagram of the internal structure of the power-on box of the utility model.

[0020] Figure 4 It is a schematic diagram of the power-off component of the utility model.

[0021] Figure 5 It is a schematic diagram of the power-on component of the utility model.

[0022] The reference signs are: 1, valve body; 2, valve rod; 3, code disc; 4, fixed plate; 5, support; 6, motor body; 7, power-on box; 8, photoelectric sensor; 9, valve leaf; 10, power-off component; 1001, electric push rod; 1002, first insulating plate; 1003, first power-on terminal; 1004, second power-on terminal; 11, power-on component; 1101, second insulating plate; 1102, third power-on terminal; 1103, fourth power-on terminal. DETAILED DESCRIPTION

[0023] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0024] As shown in the accompanying Figures 1-5The illustrated one kind is a rotary valve motor protection mechanism, including valve body 1, the valve rod 2 is installed in the valve body 1, the valve leaf 9 is installed on the valve rod 2, the valve rod 2 one end is installed with code disc 3, the upper and lower ends of the valve body 1 are all installed with fixed plate 4, each fixed plate 4 is all installed with a support 5, two supports 5 are clamped with motor body 6, the output end of the motor body 6 is connected with valve rod 2, one fixed plate 4 bottom is installed with electricity receiving box 7, the electricity receiving box 7 is installed with photoelectric sensor 8 matched with code disc 3, the photoelectric sensor 8 is connected with power-off component 10, one side of the power-off component 10 is matched with electricity receiving component 11.

[0025] In specific implementation, the electricity receiving component 11 is connected with the power supply end of the motor body 6, the power-off component 10 is connected with the power supply end, when the electricity receiving component 11 and the power-off component 10 are connected, the motor body 6 runs, drives the valve rod 2 to rotate, so that the valve leaf 9 rotates in the valve body 1, thereby discharging, in the process of discharging, the code disc 3 installed on the valve rod 2 rotates synchronously with the valve rod 2, when the valve leaf 9 is stuck by material, the photoelectric sensor 8 detects that the rotating speed of the code disc 3 slows down to reach the set threshold, so that the power-off component 10 runs and is disconnected with the electricity receiving component 11, thereby disconnecting the power supply of the motor body 6, so that the motor body 6 stops running, thereby avoiding the high load or overload state of the motor body 6, so that the motor body 6 is prevented from being burnt out, and the effect of motor protection is achieved.

[0026] One fixed plate 4 one end top is installed with a support 5, and the other fixed plate 4 one end bottom is also installed with a support 5, two supports 5 are connected and fixed to clamp the motor body 6.

[0027] In specific implementation, the motor body 6 is clamped and fixed by two supports 5, and each fixed plate 4 is connected and fixed with the valve body 1, so that the motor body 6 is connected with the valve body 1 to form a whole, so that when the motor body 6 runs and vibrates, the valve body 1 vibrates synchronously, so that the motor body 6 and the valve rod 2 always maintain coaxial connection, so as to improve the transmission efficiency and improve the stability of operation.

[0028] Two fixed plates 4 are both provided with through holes at the connection with the valve body 1.

[0029] In specific implementation, through the through holes, the inlet and outlet of the valve body 1 can be prevented from being blocked, so that the rotary valve can normally feed and discharge.

[0030] The power-off assembly 10 comprises an electric push rod 1001, a first insulating plate 1002, a first power connection terminal 1003 and a second power connection terminal 1004, the electric push rod 1001 is installed in the power connection box 7, the first insulating plate 1002 is installed at the telescopic end of the electric push rod 1001, the first power connection terminal 1003 is installed at one end of the first insulating plate 1002, and the second power connection terminal 1004 is installed at the other end of the first insulating plate 1002.

[0031] The power connection assembly 11 comprises a second insulating plate 1101, a third power connection terminal 1102 and a fourth power connection terminal 1103, the second insulating plate 1101 is installed in the power connection box 7, the third power connection terminal 1102 is installed at one end of the second insulating plate 1101, and the fourth power connection terminal 1103 is installed at the other end of the second insulating plate 1101.

[0032] The first power connection terminal 1003 is correspondingly matched with the third power connection terminal 1102, and the second power connection terminal 1004 is correspondingly matched with the fourth power connection terminal 1103.

[0033] In specific implementation, through the telescopic movement of the electric push rod 1001, the first insulating plate 1002 can be moved close to or away from the second insulating plate 1101, so that the first power connection terminal 1003 and the third power connection terminal 1102 and the second power connection terminal 1004 and the fourth power connection terminal 1103 can be connected or disconnected, so that the operation and stop of the motor body 6 connected with the third power connection terminal 1102 and the fourth power connection terminal 1103 can be controlled, so that when the photoelectric sensor 8 detects that the valve rod 2 rotates abnormally, the operation of the motor body 6 can be stopped in time, the overload operation of the motor body 6 is avoided, the motor body 6 is protected, and the service life of the motor is improved.

[0034] The above only describes preferred embodiments of the utility model and is not used for limiting the utility model, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A rotary valve motor protection mechanism comprising a valve body (1), characterized in that: The valve body (1) is provided with a valve stem (2), the valve stem (2) is provided with a valve leaf (9), one end of the valve stem (2) is provided with a code disc (3), the upper and lower ends of the valve body (1) are provided with a fixed plate (4), each fixed plate (4) is provided with a support (5), the two supports (5) are clamped and fixed with a motor body (6), the output end of the motor body (6) is connected with the valve stem (2), the bottom of one fixed plate (4) is provided with an electricity receiving box (7), the electricity receiving box (7) is provided with a photoelectric sensor (8) matched with the code disc (3), the photoelectric sensor (8) is connected with a power-off assembly (10), one side of the power-off assembly (10) is provided with an electricity receiving assembly (11).

2. A rotary valve motor protection mechanism according to claim 1, wherein: One end of one fixed plate (4) is provided with a support (5), the other end of the other fixed plate (4) is also provided with a support (5), the two supports (5) are connected and fixed to clamp the motor body (6).

3. A rotary valve motor protection mechanism according to claim 2, wherein: The two fixed plates (4) are provided with through holes at the connection with the valve body (1).

4. A rotary valve motor protection mechanism according to claim 3, wherein: The power-off assembly (10) comprises an electric push rod (1001), a first insulating plate (1002), a first electricity receiving terminal (1003) and a second electricity receiving terminal (1004), the electric push rod (1001) is installed in the electricity receiving box (7), the first insulating plate (1002) is installed at the telescopic end of the electric push rod (1001), the first electricity receiving terminal (1003) is installed at one end of the first insulating plate (1002), and the second electricity receiving terminal (1004) is installed at the other end of the first insulating plate (1002).

5. A rotary valve motor protection mechanism according to claim 4, wherein: The electricity receiving assembly (11) comprises a second insulating plate (1101), a third electricity receiving terminal (1102) and a fourth electricity receiving terminal (1103), the second insulating plate (1101) is installed in the electricity receiving box (7), the third electricity receiving terminal (1102) is installed at one end of the second insulating plate (1101), and the fourth electricity receiving terminal (1103) is installed at the other end of the second insulating plate (1101).

6. A rotary valve motor protection mechanism according to claim 5, wherein: The first electricity receiving terminal (1003) is matched with the third electricity receiving terminal (1102), and the second electricity receiving terminal (1004) is matched with the fourth electricity receiving terminal (1103).

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