CN216128902U - Low-speed monitoring device and belt conveyor with same - Google Patents
Low-speed monitoring device and belt conveyor with same Download PDFInfo
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- CN216128902U CN216128902U CN202122749462.1U CN202122749462U CN216128902U CN 216128902 U CN216128902 U CN 216128902U CN 202122749462 U CN202122749462 U CN 202122749462U CN 216128902 U CN216128902 U CN 216128902U
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Abstract
The utility model provides a low-speed monitoring device and a belt conveyor with the same, which are arranged on a carrier roller of the belt conveyor, and have the following structures: the winding has solenoid on the stator, both ends link firmly between the roller of roll body both sides through the first support connecting rod and the second support connecting rod with bearing roller coaxial arrangement, first permanent magnet is the symmetry branch with the second permanent magnet and locates the both sides of stator, relative magnetic pole is heteropole, the adhesion is respectively on the roll body internal face, the hollow passageway that link up to the outside is formed along the axial with the roll shaft middle part of side in first support connecting rod and place, solenoid one end is connected coil negative pole and is led out the line, the other end is connected coil positive pole and is led out the line, coil negative pole is led out the line, coil positive pole is led out the line and is passed hollow passageway and the direct current milliammeter electrical property of arranging outside the belt conveyor in outward links to each other. The utility model is used for monitoring whether the belt conveyor runs or not, and the monitoring result is more accurate.
Description
Technical Field
The utility model relates to the technical field of conveying equipment, in particular to a low-speed monitoring device and a belt conveyor with the same.
Background
In order to find out the situations that a transmission roller and a belt slide, the belt is broken, materials are scattered from the belt and the like when the belt conveyor (also called as a belt conveyor) conveys the materials in time, the belt conveyor is provided with a low-speed switch, namely a belt sliding switch or a belt low-speed switch, so as to monitor the running condition of the belt. The belt of belt feeder uses the head pulley as the action wheel, and the tailwheel is for following the driving wheel, and upper belt is supported by a plurality of side dress rollers, and lower floor's belt is supported by the roller of directly adorning to keep the stability of belt when moving.
At present, a low-speed switch for monitoring whether a belt slips (namely, a transmission roller rotates at a low speed or does not move) has two types of contact and non-contact. Contact low-speed switch installs between two-layer belt, and its support mounting is in the frame of belt feeder one side, through the pulling force of spring, tightly pushes up the swiveling wheel below the upper belt through the support, drives the swiveling wheel through the belt and rotates, and epaxial response piece triggers inductive switch and detects. The non-contact type is installed at one end of the bend roller, and the belt speed is detected by triggering a low-speed switch through an induction sheet welded on the bend roller to judge whether the belt slips or not.
The contact type low-speed switch is required to be installed between two layers of belts, the size of the contact type low-speed switch is limited by space, the installation requirement can be met, and the service life is short. And the upper layer belt, the lower layer belt and the middle belt rack are arranged on the upper layer belt and the lower layer belt during installation, so that the installation and the replacement are extremely inconvenient. Such monitoring methods can produce large errors if the belt is in an enclosed space or if the belt itself is an enclosed belt. The non-contact low-speed switch depends on a special low-speed bend roller with an induction sheet, the installation position is required to be beside the bend roller, and the detection effect of the belt is easily influenced when the belt is scattered due to the outside of the belt, even the belt is damaged by large materials; in the aspect of roller purchasing, a special direction-changing roller with a sensing sheet is arranged.
The belt conveyor tail wheel shaft is provided with a cross iron sheet which rotates with the tail wheel at the same time, and whether the contact switch senses the iron sheet is used for judging whether the belt tail wheel acts or not so as to judge whether the belt runs or not. However, when the device is operated in a sealed space, especially when materials fall down, the device is easy to break, and misjudgment is caused.
The contact type low-speed switch and the non-contact type low-speed switch have the common defect that whether a belt runs or not is monitored by using an external device, but under the condition that the external monitoring device cannot be installed on a shell closed belt conveyor, a self-closed belt conveyor and the like with special requirements, the belt is slipped, broken and cannot be alarmed or shut down, so that the belt is damaged or even catches fire.
SUMMERY OF THE UTILITY MODEL
The present invention aims to solve the above technical problem at least to some extent. Therefore, the utility model provides a low-speed monitoring device which is used for monitoring whether a belt conveyor runs or not, the monitoring result is more accurate, and the belt conveyor provided with the low-speed monitoring device is provided.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a low-speed monitoring device is structurally characterized in that:
the roller is arranged on a carrier roller of a belt conveyor, the carrier roller is used for bearing a belt, the roller body is coaxially and rotatably arranged on a roller shaft, the roller shaft is a fixed component, and an outer roller surface of the roller body is in contact with a belt surface at the inward end of the belt and can rotate around a central axis relative to the roller shaft along with the operation of the belt;
the low-speed monitoring device comprises a first permanent magnet, a second permanent magnet, a first support connecting rod, a second support connecting rod, a stator, an electromagnetic coil, a coil cathode outgoing line, a coil anode outgoing line and a direct current milliammeter, wherein the electromagnetic coil is wound on the stator, two ends of the electromagnetic coil are fixedly connected between roll shafts on two sides of the roll body through the first support connecting rod and the second support connecting rod which are coaxially arranged with the carrier roller, the first permanent magnet and the second permanent magnet are symmetrically arranged on two sides of the stator, opposite magnetic poles are heteropolars and are respectively adhered to the inner wall surface of the roller body, the first support connecting rod and the middle part of the roll shaft at the side form a hollow channel which penetrates to the outside along the axial direction, one end of the electromagnetic coil is connected with the negative pole outgoing line of the coil, the other end is connected with the positive pole outgoing line of the coil, and the coil cathode outgoing line and the coil anode outgoing line penetrate through the hollow channel to be electrically connected with a direct current milliammeter arranged outside the belt conveyor.
The low-speed monitoring device is also characterized in that:
the two ends of the roller body are supported on the roller shaft by bearings.
The belt conveyor is provided with a roller carrier for mounting a roller shaft.
And the coil cathode outgoing line and the coil anode outgoing line are exposed out of the belt conveyor and partially sleeved with a protective sleeve.
The utility model simultaneously provides two belt conveyors:
the utility model provides a belt conveyor, many pairs of bearing roller group on belt conveyor are along belt interval arrangement, and two slope bearing rollers of every pair of bearing roller group are the symmetry and set up in the both sides of belt, and outer roll surface contacts with the belt face both sides of belt one end inwards respectively, is provided with above-mentioned low-speed monitoring devices on at least one slope bearing roller.
Furthermore, two inclined carrier rollers of each pair of carrier roller sets are distributed in an inverted splayed shape, and the outer roller surface at the higher end of the roller body is in contact with the belt.
In another belt conveyor, the horizontal carrier rollers on the belt conveyor are arranged at intervals along the belt, the outer roller surface of each horizontal carrier roller is in contact with the belt surface at the inward end of the belt, and the low-speed monitoring device is arranged on at least one horizontal carrier roller.
Compared with the prior art, the utility model has the beneficial effects that:
in order to overcome the defects that a contact type low-speed switch in the prior art is short in service life, insufficient in field space and inconvenient to install and replace, and a non-contact type low-speed switch and an induction type switch are easy to damage and false alarm in a closed space, the utility model provides a low-speed monitoring device and a corresponding belt conveyor. And because the roller body is driven to rotate by the friction force between the belt and the carrier roller during operation, the direct current milliammeter of the low-speed monitoring device monitors the current and voltage, and the monitoring structure is more accurate.
Drawings
FIG. 1 is a schematic view of a low speed monitoring device;
fig. 2 is a schematic structural view of a belt conveyor provided with a low-speed monitoring device.
In the figure, 1 a roller body; 2, a roll shaft; 3, a bearing; 4 a first permanent magnet; 5 a second permanent magnet; 6 a first support link; 7 a second support link; 8, a stator; 9 an electromagnetic coil; 10 coil negative pole connects the line out; 11, connecting the positive pole of the coil with a wire; 12 direct current milliammeter; 13 a hollow channel; 14, a roller frame; 15 inclining the carrier roller; 16 belts.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the low-speed monitoring device of the present embodiment has the following structure:
the roller is arranged on a carrier roller of a belt conveyor, the carrier roller is used for bearing a belt 16, the roller body 1 is coaxially and rotatably arranged on the roller shaft 2, the roller shaft 2 is a fixed component, and the outer roller surface of the roller body 1 is in contact with the belt 16 surface at the inward end of the belt 16 and can rotate around a central axis relative to the roller shaft 2 along with the operation of the belt 16;
the low-speed monitoring device comprises a first permanent magnet 4, a second permanent magnet 5, a first supporting connecting rod 6, a second supporting connecting rod 7, a stator 8, an electromagnetic coil 9, a coil cathode outgoing line 10, a coil anode outgoing line 11 and a direct current milliammeter 12, wherein the electromagnetic coil 9 is wound on the stator 8, two ends of the electromagnetic coil are fixedly connected between roller shafts 2 at two sides of a roller body 1 through the first supporting connecting rod 6 and the second supporting connecting rod 7 which are coaxially arranged with a carrier roller, the first permanent magnet 4 and the second permanent magnet 5 are symmetrically arranged at two sides of the stator 8 respectively, opposite magnetic poles are heteropoles and are respectively adhered on the inner wall surface of the roller body 1 through high-strength adhesives, the first supporting connecting rod 6 and the roller shaft 2 at the side are of a hollow structure, a hollow channel 13 which penetrates through to the outside is formed in the middle part along the axial direction, one end of the electromagnetic coil 9 is connected with the coil cathode outgoing line 10, the other end of the coil anode outgoing line 11, the coil cathode outgoing line 10 and the coil anode outgoing line 11 are electrically connected with a direct current milliammeter 12 arranged outside the belt conveyor through a hollow channel 13.
The structural arrangement of the low-speed monitoring device also comprises:
the roller body 1 is supported at both ends on the roller shaft 2 by bearings 3.
The belt conveyor is provided with a roller carrier 14 for mounting the roller shaft 2.
The coil cathode outgoing line 10 and the coil anode outgoing line 11 are exposed out of the belt conveyor, and a protective sleeve is sleeved outside the part, so that a protective effect is achieved.
In this embodiment, the copper electromagnetic coil 9 is selected.
This embodiment proposes two kinds of band conveyer simultaneously:
first, a plurality of pairs of idler sets on the belt conveyor are arranged at intervals along the belt 16, two inclined idlers 15 of each pair of idler sets are symmetrically arranged on two sides of the belt 16, outer roller surfaces are respectively contacted with two sides of the belt 16 surface at the inward end of the belt 16, and the low-speed monitoring device is arranged on at least one inclined idler 15, as shown in fig. 2.
Furthermore, two inclined carrier rollers 15 of each pair of carrier roller groups are distributed in an inverted splayed shape, and the outer roller surface at the higher end of the roller body 1 is contacted with a belt 16.
Secondly, the horizontal carrier rollers on the belt conveyor are arranged at intervals along the belt 16, the outer roller surface of each horizontal carrier roller is contacted with the surface of the belt 16 at the inward end of the belt 16, and the low-speed monitoring device is arranged on at least one horizontal carrier roller.
The low-speed monitoring method during operation of the belt conveyor provided with the low-speed monitoring device is as follows:
after the belt conveyor runs, a forward moving belt 16 drives the roller body 1 to rotate around the roller shaft 2 directionally through friction between the belt 16 and the outer roller surface of the carrier roller body 1, when the roller body 1 rotates, the first permanent magnet 4 and the second permanent magnet 5 which are opposite in different poles and arranged on the inner wall surface of the roller body 1 in an internal mode rotate synchronously along with the roller body 1, magnetic line of force cutting is conducted on an electromagnetic coil 9 between the first permanent magnet and the second permanent magnet, according to the Faraday electromagnetic induction principle, the electromagnetic coil 9 generates corresponding current and voltage and has a power generation phenomenon, real-time monitoring can be achieved through the external direct current milliammeter 12, when the belt conveyor stops running, the magnetic force cutting stops along with the magnetic line of force, the external direct current milliammeter 12 monitors no voltage or current, the power generation phenomenon does not exist, and the shutdown of the belt conveyor can be judged. On the basis of the embodiment, the direct current milliammeter 12 can be connected to a field PLC, and when no voltage or current exists in the direct current milliammeter 12, the alarm is controlled to give an alarm through the PLC. The monitoring of the voltage or the current can be used for judging whether the rotating speed of the belt conveyor is normal or not, so that the intermittent slipping or material pressing of the belt 16 can be found in advance, and the advanced treatment can be realized. Under the condition that the closed belt 16 or the belt 16 machine is provided with a closed space, a plurality of carrier rollers with low-speed monitoring devices are arranged, so that faults can be effectively judged.
In addition, if single bearing roller has caused wearing and tearing when big and not rotating because of the live time of a specified duration, also can conveniently remind the staff to change by this device.
While embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.
Claims (7)
1. A low-speed monitoring device is characterized in that:
the roller is arranged on a carrier roller of a belt conveyor, the carrier roller is used for bearing a belt, the roller body is coaxially and rotatably arranged on a roller shaft, the roller shaft is a fixed component, and an outer roller surface of the roller body is in contact with a belt surface at the inward end of the belt and can rotate around a central axis relative to the roller shaft along with the operation of the belt;
the low-speed monitoring device comprises a first permanent magnet, a second permanent magnet, a first support connecting rod, a second support connecting rod, a stator, an electromagnetic coil, a coil cathode outgoing line, a coil anode outgoing line and a direct current milliammeter, wherein the electromagnetic coil is wound on the stator, two ends of the electromagnetic coil are fixedly connected between roll shafts on two sides of the roll body through the first support connecting rod and the second support connecting rod which are coaxially arranged with the carrier roller, the first permanent magnet and the second permanent magnet are symmetrically arranged on two sides of the stator, opposite magnetic poles are heteropolars and are respectively adhered to the inner wall surface of the roller body, the first support connecting rod and the middle part of the roll shaft at the side form a hollow channel which penetrates to the outside along the axial direction, one end of the electromagnetic coil is connected with the negative pole outgoing line of the coil, the other end is connected with the positive pole outgoing line of the coil, and the coil cathode outgoing line and the coil anode outgoing line penetrate through the hollow channel to be electrically connected with a direct current milliammeter arranged outside the belt conveyor.
2. The low speed monitoring device of claim 1, wherein: the two ends of the roller body are supported on the roller shaft by bearings.
3. The low speed monitoring device of claim 1, wherein: the belt conveyor is provided with a roller carrier for mounting a roller shaft.
4. The low speed monitoring device of claim 1, wherein: and the coil cathode outgoing line and the coil anode outgoing line are exposed out of the belt conveyor and partially sleeved with a protective sleeve.
5. The utility model provides a belt conveyor, many pairs of bearing roller group on belt conveyor are along belt interval arrangement, and two slope bearing rollers to bearing roller group are the symmetry and divide and establish the both sides at the belt, and outer roll surface contacts characterized by with the belt surface both sides of the inboard one end respectively: a low speed monitoring apparatus as claimed in any one of claims 1 to 4 provided on at least one of the oblique idlers.
6. The belt conveyor of claim 5, wherein: two inclined carrier rollers of each pair of carrier roller sets are distributed in an inverted splayed shape, and the outer roller surface at the higher end of the roller body is in contact with the belt.
7. The utility model provides a belt conveyor, horizontal bearing roller on the belt conveyor is arranged along belt interval, and the outer roll surface of each horizontal bearing roller all contacts characterized by with the belt surface of belt one end inwards: a low speed monitoring device as claimed in any one of claims 1 to 4 is provided on at least one horizontal idler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122749462.1U CN216128902U (en) | 2021-11-11 | 2021-11-11 | Low-speed monitoring device and belt conveyor with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122749462.1U CN216128902U (en) | 2021-11-11 | 2021-11-11 | Low-speed monitoring device and belt conveyor with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216128902U true CN216128902U (en) | 2022-03-25 |
Family
ID=80778419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122749462.1U Active CN216128902U (en) | 2021-11-11 | 2021-11-11 | Low-speed monitoring device and belt conveyor with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216128902U (en) |
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2021
- 2021-11-11 CN CN202122749462.1U patent/CN216128902U/en active Active
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