Locked-rotor alarm device for rotary filter screen

Abstract

The utility model provides a locked-rotor alarm device for a rotary filter screen, which belongs to the technical field of rotary filter screens and comprises three annular frames, a rotating shaft, a rotating shaft and a rotating shaft, the two filter screens are fixed between the end parts of the two adjacent annular frames; the rotating shaft is arranged on the inner side of the filter screen; the number of the supporting rods is multiple, one ends of the multiple supporting rods are fixed to the circumferential surface of the rotating shaft, and the other ends of the multiple supporting rods are fixed to the circumferential inner walls of the multiple annular frames correspondingly; according to the anti-blocking device, the impact block can intermittently abut against the shifting plate, so that one end of the shifting plate can be jacked up, the other end of the shifting plate drives the rotating rod to rotate, the rotating rod drives the anti-blocking plate to rotate through the rod sleeve, the anti-blocking plate does not make contact with the filter screen, and when the impact block does not make contact with the shifting plate, the anti-blocking plate descends and makes contact with the surface of the filter screen through gravity; and the filter screen is knocked intermittently, so that filter holes in the filter screen are not easy to block, and a better filtering effect can be achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of rotary filters, and particularly relates to a stall alarm device for a rotary filter. Background Technique

[0002] Rotary filters are widely used in various industrial equipment, such as sewage treatment equipment, food processing equipment, etc. However, during the use of rotary filters, the filters are often blocked due to various reasons (such as impurity accumulation, equipment failure, etc.), thus affecting the normal operation of the equipment; rotary filters are also installed in power and hydraulic equipment, which are essential filter and water purification devices before extracting or using water sources, and can effectively intercept and remove aquatic plants, industrial and agricultural or domestic waste, organic floating objects, fish and shrimps, etc. entrained in the water sources.

[0003] The existing rotary filter screens do not have a structure to prevent the filter holes from being blocked during rotary filtration. In this way, during long-term use, the filtration effect is likely to be reduced, and even the situation of stall may occur. Therefore, we provide a stall alarm device for a rotary filter to solve the above problems. Content of the Utility Model

[0004] The purpose of the utility model is to provide a stall alarm device for a rotary filter, aiming at solving the problem that the existing rotary filter screens do not have a structure to prevent the filter holes from being blocked during rotary filtration. In this way, during long-term use, the filtration effect is likely to be reduced, and even the situation of stall may occur.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A stall alarm device for a rotary filter, comprising:

[0007] Three annular frames, which are distributed horizontally in sequence;

[0008] Two filter screens, which are fixed between the ends of two adjacent annular frames;

[0009] A rotating shaft, which is arranged inside the filter screen;

[0010] A plurality of support rods, one ends of the plurality of support rods are fixed to the circumferential surface of the rotating shaft, and the other ends of the plurality of support rods are respectively fixed to the circumferential inner walls of the plurality of annular frames;

[0011] A driving mechanism, which is connected to the rotating shaft to realize its rotation;

[0012] An alarm mechanism, which is connected to the driving mechanism to give an alarm when the torque thereof changes;

[0013] The gantry is sleeved on the circumferential surface of the rotating shaft;

[0014] The rotating rod is rotatably connected between the inner walls on both sides of the gantry;

[0015] There are two rod sleeves, both of which are fixed on the circumferential surface of the rotating rod;

[0016] There are two anti-blocking plates. One ends of the two anti-blocking plates are respectively fixed to the two rod sleeves, and the other ends of the two anti-blocking plates are respectively in intermittent abutment with the surfaces of the two filter nets.

[0017] As a preferred solution of the present utility model, on both sides of the circumferential surface of the rotating rod, there are fixed dialing plates. The other ends of the two dialing plates are respectively in contact with the surfaces of the two annular frames on both sides. On the circumferential surfaces of the two annular frames on both sides, there are fixed a plurality of uniformly distributed impact blocks, and the plurality of impact blocks are respectively in intermittent contact with the two dialing plates.

[0018] As a preferred solution of the present utility model, the driving mechanism is composed of a motor and a base. The base is arranged on the ground, the motor is fixed on the top of the base, and the output end of the motor is fixed to one end of the rotating shaft.

[0019] As a preferred solution of the present utility model, the alarm mechanism is composed of a torque sensor and an alarm. The torque sensor is fixedly arranged on the output end of the motor, the alarm is fixedly arranged on the top of the gantry, and the torque sensor and the alarm are signal-connected.

[0020] As a preferred solution of the present utility model, the alarm is also provided with an alarm lamp and a loudspeaker.

[0021] As a preferred solution of the present utility model, a limiting rod is fixed between the inner walls on both sides of the gantry, and the limiting rod is located above the dialing plate.

[0022] As a preferred solution of the present utility model, bearing sleeves are arranged on both sides of the circumferential surface of the rotating shaft.

[0023] Compared with the prior art, the beneficial effects of the present utility model are:

[0024] 1. In this solution, the impact blocks can intermittently abut against the dialing plates, so that one end of the dialing plate can be lifted, and the other end drives the rotating rod to rotate. The rotating rod can drive the anti-blocking plate to rotate through the rod sleeve, so that the anti-blocking plate does not contact the filter net. When the impact blocks do not contact the dialing plates, the anti-blocking plate descends due to gravity and contacts the surface of the filter net, knocking on the filter net. Such intermittent knocking can prevent the filter holes on the filter net from being blocked, and can better play a filtering role.

[0025] 2. In this solution, the torque sensor is provided to monitor the torque force at the output end of the motor in real time. The preset threshold can be used. When the torque force is significantly different from the preset threshold, it indicates an abnormality. An alarm is issued through the alarm to guide the staff to check in time.

[0026] 3. In this solution, the limit rod is provided so that the toggle plate is not prone to large flipping or getting stuck after being hit, and can fall naturally by gravity, effectively knocking the surface of the filter to prevent the filter from being blocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0028] Figure 1 It is a first perspective stereogram in the utility model;

[0029] Figure 2 It is a cross-sectional view in the utility model;

[0030] Figure 3 It is a partial stereogram in the utility model;

[0031] Figure 4 This is a second perspective stereogram in the present invention.

[0032] In the figure: 1. annular frame; 2. filter screen; 3. rotating shaft; 4. support rod; 5. gantry; 6. motor; 7. base; 8. rotating rod; 9. rod sleeve; 10. anti-blocking plate; 11. toggle plate; 12. impact block; 13. limit rod; 14. torque sensor; 15. alarm; 151. alarm light; 152. speaker; 16. bearing sleeve. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the utility model in conjunction 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 of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] Example

[0035] See also Figures 1-4 , the utility model provides the following technical solutions:

[0036] A stall alarm device for a rotary filter, comprising:

[0037] There are three annular frames 1, which are arranged horizontally in sequence;

[0038] There are two filter meshes 2, which are fixed between the ends of two adjacent annular frames 1;

[0039] The rotating shaft 3 is arranged inside the filter mesh 2;

[0040] There are multiple support rods 4. One ends of the multiple support rods 4 are all fixed to the circumferential surface of the rotating shaft 3, and the other ends of the multiple support rods 4 are respectively fixed to the circumferential inner walls of the multiple annular frames 1;

[0041] The driving mechanism is connected to the rotating shaft 3 to realize its rotation;

[0042] The alarm mechanism is connected to the driving mechanism to give an alarm when the torque thereof changes;

[0043] The gantry 5 is sleeved on the circumferential surface of the rotating shaft 3;

[0044] The rotating rod 8 is rotatably connected between the inner walls on both sides of the gantry 5;

[0045] There are two rod sleeves 9, which are both fixed to the circumferential surface of the rotating rod 8;

[0046] There are two anti-blocking plates 10. One ends of the two anti-blocking plates 10 are respectively fixed to the two rod sleeves 9, and the other ends of the two anti-blocking plates 10 are respectively in intermittent abutment with the surfaces of the two filter meshes 2.

[0047] In a specific embodiment of the utility model, in the device, three annular frames 1 and two filter screens 2 form a rotatable filter screen, which is connected to the rotating shaft 3 through multiple support rods 4. The driving mechanism drives the rotating shaft 3 to rotate to achieve the rotating filtration of the rotating filter screen. The alarm mechanism can effectively measure the torque force of the driving mechanism and sound an alarm when a large deviation occurs. The gantry 5 is connected to the external top plate or the fixing part to support the rotating shaft 3 and is rotatably connected to the rotating shaft 3 without affecting the rotation of the rotating shaft 3. The rotating rod 8 can rotate, and toggle plates 11 are fixed on both sides of the circumferential surface of the rotating rod 8. The other ends of the two toggle plates 11 are respectively in contact with the surfaces of the two annular frames 1 located on both sides. , a plurality of evenly distributed impact blocks 12 are fixed on the circumferential surfaces of the two annular frames 1 on both sides, and the plurality of impact blocks 12 are intermittently in contact with the two toggle plates 11 respectively; the impact blocks 12 can intermittently abut against the toggle plates 11, so that one end of the toggle plates 11 can be lifted up, and the other end drives the rotating rod 8 to rotate, and the rotating rod 8 can drive the anti-blocking plate 10 to rotate through the rod sleeve 9, so that the anti-blocking plate 10 does not contact the filter screen 2. When the impact blocks 12 do not contact the toggle plates 11, the anti-blocking plate 10 is lowered by gravity, contacts the surface of the filter screen 2, and knocks the filter screen 2. Such intermittent knocking makes the filter holes on the filter screen 2 less likely to be blocked, and can better play a filtering role.

[0048] Specifically, the driving mechanism is composed of a motor 6 and a base 7. The base 7 is set on the ground, the motor 6 is fixed to the top of the base 7, and the output end of the motor 6 is fixed to one end of the rotating shaft 3. The base 7 is used to support the motor 6, and the motor 6 is used to drive the rotating shaft 3 to rotate. It should be noted that the motor 6 is a prior art, and the corresponding model can be selected according to actual needs, and no further elaboration will be made on this.

[0049] Specifically, the alarm mechanism is composed of a torque sensor 14 and an alarm 15 . The torque sensor 14 is fixedly arranged on the output end of the motor 6 , and the alarm 15 is fixedly arranged on the top of the gantry 5 . The torque sensor 14 and the alarm 15 are signal-connected.

[0050] In this embodiment: the torque sensor 14 is installed on the driving shaft of the motor 6, and is used to monitor the torque changes of the driving shaft in real time. The preset torque threshold can be used to determine whether the rotating filter is blocked. When the rotating filter is blocked, a signal is transmitted to the alarm 15 to trigger an alarm signal. The torque sensor 14 can monitor the torque force at the output end of the motor 6 in real time. The preset threshold can be used. When the torque force is significantly different from the preset threshold, it indicates an abnormality. The alarm is issued through the alarm 15 to guide the staff to check in time. It should be noted that the torque sensor 14 and the alarm 15 are both existing technologies, and the corresponding models can be selected according to actual needs. At the same time, how the torque sensor 14 presets the threshold and determines the torque force and transmits the abnormal situation to the alarm 15 is also common knowledge of those skilled in the art, and no further elaboration will be made on this.

[0051] Specifically, the alarm device 15 is also provided with an alarm light 151 and a speaker 152 .

[0052] In this embodiment: the alarm light 151 can issue a light alarm prompt, and the specific color is set according to actual needs. The speaker 152 is used to issue a sound prompt to avoid the situation where the staff cannot receive the light signal in the blind spot of the field of vision.

[0053] Specifically, a limit rod 13 is fixed between the inner walls on both sides of the gantry 5 , and the limit rod 13 is located on the upper side of the toggle plate 11 .

[0054] In this embodiment, the limiting rod 13 is provided so that the toggle plate 11 is not prone to large flipping or getting stuck after being hit, and can fall naturally by gravity, effectively striking the surface of the filter screen 2 to prevent the filter screen 2 from being blocked.

[0055] Specifically, bearing sleeves 16 are provided on both sides of the circumferential surface of the rotating shaft 3 .

[0056] In this embodiment: the bearing sleeve 16 is fixed to the external support member and is rotatably connected to the rotating shaft 3 to further support the rotating shaft 3 so that the rotating shaft 3 is more stable when rotating.

[0057] Working principle and usage process of the present utility model: When the device is in use, the base 7 is started, the base 7 drives the rotating shaft 3 to rotate, the rotating shaft 3 drives multiple filter screens 2 and the annular frame 1 to rotate through the support rod 4, the monitoring of the torque force is realized through the alarm mechanism, and when a jam occurs during abnormal conditions, an alarm can be given in a timely manner. At the same time, when the annular frames 1 on both sides rotate, the impact blocks 12 are driven to rotate. There are three impact blocks 12 arranged on each annular frame 1 on both sides. Driving the impact blocks 12 to rotate enables the three impact blocks 12 to intermittently abut against the toggle plate 11, so that one end of the toggle plate 11 can be lifted, and the other end drives the rotating rod 8 to rotate. The rotating rod 8 can drive the anti-blocking plate 10 to rotate through the rod sleeve 9, so that the anti-blocking plate 10 does not contact the filter screen 2. When the impact blocks 12 do not contact the toggle plate 11, the anti-blocking plate 10 descends due to gravity and contacts the surface of the filter screen 2, knocking on the filter screen 2. Such intermittent knocking can prevent the filter holes on the filter screen 2 from being easily blocked and can better play a filtering role.

[0058] Finally, it should be noted that the above are only preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A stall alarm device for a rotary filter, characterized in that: include: The annular rack (1) is provided with three and is distributed in sequence in the transverse direction; Two filter screens (2) are provided and fixed between the ends of two adjacent annular frames (1); A rotating shaft (3) is arranged on the inner side of the filter screen (2); A plurality of support rods (4) are provided, one end of each of the plurality of support rods (4) is fixed to the circumferential surface of the rotating shaft (3), and the other ends of each of the plurality of support rods (4) are respectively fixed to the circumferential inner walls of the plurality of annular frames (1); A driving mechanism connected to the rotating shaft (3) to realize its rotation; An alarm mechanism, connected to the driving mechanism to generate an alarm when the torque thereof changes; A gantry (5) is sleeved on the circumferential surface of the rotating shaft (3); A rotating rod (8) is rotatably connected between the inner walls on both sides of the gantry (5); Two rod sleeves (9) are provided and are both fixed on the circumferential surface of the rotating rod (8); The anti-blocking plates (10) are provided with two, one end of each of the two anti-blocking plates (10) is fixed to the two rod sleeves (9) respectively, and the other end of each of the two anti-blocking plates (10) is intermittently pressed against the surfaces of the two filter screens (2) respectively.

2. A rotating filter screen blocking alarm device according to claim 1, characterized in that: A toggle plate (11) is fixed on both sides of the circumferential surface of the rotating rod (8), and the other ends of the two toggle plates (11) are respectively in contact with the surfaces of the two annular frames (1) located on both sides, and a plurality of evenly distributed impact blocks (12) are fixed on the circumferential surfaces of the two annular frames (1) located on both sides, and the plurality of impact blocks (12) are respectively in intermittent contact with the two toggle plates (11).

3. A rotating filter screen blocking alarm device according to claim 2, characterized in that: The driving mechanism is composed of a motor (6) and a base (7), wherein the base (7) is arranged on the ground, the motor (6) is fixed to the top of the base (7), and the output end of the motor (6) is fixed to one end of the rotating shaft (3).

4. A rotating filter screen blocking alarm device according to claim 3, characterized in that: The alarm mechanism is composed of a torque sensor (14) and an alarm (15); the torque sensor (14) is fixedly arranged on the output end of the motor (6); the alarm (15) is fixedly arranged on the top of the gantry (5); and the torque sensor (14) and the alarm (15) are signal-connected.

5. A rotation blocking alarm device for a rotary filter according to claim 4, characterized in that: The alarm device (15) is also provided with an alarm light (151) and a loudspeaker (152).

6. A rotation blocking alarm device for a rotary filter according to claim 5, characterized in that: A limiting rod (13) is fixed between the inner walls on both sides of the gantry (5), and the limiting rod (13) is located on the upper side of the toggle plate (11).

7. A rotation blocking alarm device for a rotary filter according to claim 6, characterized in that: Bearing sleeves (16) are provided on both sides of the circumferential surface of the rotating shaft (3).

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