Scraper plate type transmission equipment fault detection device and scraper plate type transmission equipment

Abstract

The utility model relates to a fault detection device for scraper conveying equipment. The fault detection device comprises a base; the first fixing support is fixedly arranged on the base; one end of the movable support is rotatably arranged on the first fixed support; gear teeth of the chain wheel are meshed with a chain of the scraper type conveying equipment, and a transmission shaft of the chain wheel is movably arranged on the movable support through a bearing; the adjusting supporting piece is arranged between the movable support and the base, and the adjusting supporting piece is used for adjusting the pressure of the chain wheel on a chain of the scraper type conveying equipment; the second fixing support is arranged on the base; and the inductive switch is arranged on the second fixed bracket. Early warning can be carried out when the scraper conveying equipment breaks down in the initial stage, workers can carry out corresponding treatment, great damage to the equipment in the later stage is avoided, and potential safety hazards of the equipment are reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of transmission equipment, in particular to a scraper type transmission equipment fault detection device and a scraper type transmission equipment. BACKGROUND

[0002] The scraper type transmission equipment, also known as chain conveyor or en masse conveyor, is a conveying equipment that pushes the material along the groove by the movement of the scraper chain in the closed groove. It is suitable for horizontal or inclined conveying of powdery, granular and small blocky materials such as coal, ash, sand and grain. The scraper conveyor has the advantages of simple structure, good sealing, convenient installation and maintenance, large conveying capacity and long conveying distance.

[0003] The existing scraper type transmission equipment is generally provided with a zero-speed switch at the driven shaft for detecting the interlocking stop when the equipment breaks. However, it cannot detect the initial fault of the scraper in time, and can only be detected after the continuous rotation, damage, complete inoperability and non-rotation of the driven wheel, which may cause serious equipment damage and safety hazards. At the same time, the fault of the long scraper cannot be detected in time. CONTENT OF THE INVENTION

[0004] In view of the above problems, the present application provides a scraper type transmission equipment fault detection device and a scraper type transmission equipment, which solves the problem that the existing scraper type transmission equipment cannot detect the initial fault in time, which may cause serious equipment damage and safety hazards.

[0005] To achieve the above purpose, the inventor provides a scraper type transmission equipment fault detection device, which comprises:

[0006] a base;

[0007] a first fixed support fixedly arranged on the base;

[0008] a movable support, one end of which is rotatably arranged on the first fixed support;

[0009] a sprocket, the teeth of which are engaged with the chain of the scraper type transmission equipment, and the transmission shaft of the sprocket is movably arranged on the movable support through a bearing;

[0010] an adjusting support arranged between the movable support and the base, which is used to adjust the pressure of the sprocket on the chain of the scraper type transmission equipment;

[0011] a second fixed support arranged on the base;

[0012] An inductive switch is arranged on the second fixed support, connected to the controller of the scraper motor of the scraper type conveying device, and spaced apart from the movable support by a preset distance.

[0013] In some embodiments, the adjusting support comprises:

[0014] A support rod is fixedly arranged on the base at one end, and passes through the movable support.

[0015] A first spring is sleeved on the support rod at one side of the movable support.

[0016] A second spring is sleeved on the support rod at the other side of the movable support.

[0017] An adjusting bolt is threadedly connected to the other end of the support rod.

[0018] In some embodiments, the adjusting support further comprises:

[0019] A first gland is arranged between the adjusting bolt and the second spring.

[0020] A second gland is arranged between the second spring and the movable support.

[0021] A third gland is arranged between the first spring and the movable support.

[0022] A fourth gland is arranged between the first spring and the base.

[0023] In some embodiments, a chain breakage detector is further arranged on the transmission shaft of the sprocket, and the inductive switch is connected to the controller of the scraper motor of the scraper type conveying device.

[0024] In some embodiments, the chain breakage detector is a zero-speed switch.

[0025] In some embodiments, the movable support is rotatably arranged on the first fixed support through a support shaft pin.

[0026] In some embodiments, the inductive switch is a proximity switch.

[0027] Another technical solution is also provided, which is a scraper type conveying device comprising the scraper type conveying device fault detection device as described above.

[0028] The scraper type conveying device fault detection device is multiple, and is arranged on the chain of the scraper type conveying device at a preset interval distance.

[0029] Distinguish from the prior art, the above technical scheme, through the scraper chain on the scraper transmission equipment is set apart multiple scraper transmission equipment fault detection device, sprocket meshing to the scraper chain of scraper transmission equipment, due to the effect of adjusting support, the pressure of sprocket on the chain remains stable state, when the scraper chain of scraper transmission equipment normal operation, then the chain under the action of the chain in the movable support rotation, and when the scraper chain of the support shaft pin appears to appear phenomenon, and the sprocket under the pressure of adjusting support, sprocket will drive movable support around the first fixed support rotation, and make the movable support from the second fixed support inductive switch detection, to the motor controller of the scraper transmission equipment alarm signal, so that can be in the initial failure of the scraper transmission equipment warning, the staff can be processed accordingly, to avoid the later period of equipment caused significant damage, reduce the security risks of equipment.

[0030] The above utility model content related record is only the summary of the technical scheme of the present application, in order to let the ordinary skilled in the art can more clearly understand the technical scheme of the present application, then can be implemented according to the content of the description and the drawings, and in order to let the above purpose of the present application and other purposes, characteristics and advantages can be more easily understood, the following combining with the specific embodiments of the present application and the drawings are described. BRIEF DESCRIPTION OF DRAWINGS

[0031] The drawings are only used to show the principles, implementation modes, applications, characteristics and effects of the specific embodiments of the present application and other related contents, and cannot be considered as the limitation of the present application.

[0032] In the drawings of the specification:

[0033] Figure 1 A structure schematic view of the scraper transmission equipment fault detection device described in the specific embodiment.

[0034] The reference signs involved in the above drawings are explained as follows:

[0035] 1, base,

[0036] 2, first fixed support,

[0037] 3, movable support,

[0038] 4, sprocket,

[0039] 51, support rod,

[0040] 52, first spring,

[0041] 53, second spring,

[0042] 54, adjusting bolt,

[0043] 55, first gland,

[0044] 56, second gland

[0045] 57, third gland

[0046] 58, fourth gland,

[0047] 6, second fixed support,

[0048] 7, inductive switch,

[0049] 8, transmission shaft,

[0050] 9, bearing,

[0051] 10, chain breakage sensor.

[0052] 11, support shaft pin. DETAILED DESCRIPTION

[0053] To explain the possible application scenarios, technical principles, specific embodiments that can be implemented, purposes and effects that can be achieved, etc. of the present application in detail, the following will be described in detail in combination with the specific embodiments listed and with the help of the accompanying drawings. The embodiments described in this paper are only used to more clearly illustrate the technical solutions of the present application, and therefore only serve as examples, and cannot limit the protection scope of the present application.

[0054] In this paper, the term "embodiment" means that the specific features, structures or characteristics described in combination with the embodiment can be included in at least one embodiment of the present application. The term "embodiment" appearing at various places in the specification does not necessarily refer to the same embodiment, and does not particularly limit its independence or association with other embodiments. In principle, in the present application, as long as there is no technical contradiction or conflict, the technical features mentioned in each embodiment can be combined in any way to form a corresponding implementable technical solution.

[0055] Unless otherwise defined, the meaning of the technical terms used in this paper is the same as that generally understood by those skilled in the art to which the present application belongs; the use of related terms in this paper is only for the purpose of describing specific embodiments, and is not intended to limit the present application.

[0056] In the description of the present application, the word "and / or" is a description of the logical relationship between the objects, which means that there can be three relationships, for example, A and / or B, which means that there are three cases: A exists, B exists, and A and B exist at the same time. In addition, the character " / " in this paper generally represents that the associated objects before and after are a kind of "or" logical relationship.

[0057] In the present application, the terms such as "first" and "second" are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual number, primary or secondary, or order relationship between the entities or operations.

[0058] In the present application, the "includes", "contains", "has", or other similar expressions used in the statements are intended to cover non-exclusive inclusion, and do not exclude the presence of additional elements in the process, method or product comprising the elements, so that the process, method or product comprising a series of elements can not only include those defined elements, but also include other elements not explicitly listed, or also include elements inherent to such process, method or product.

[0059] As understood in the same way as in the "Guidelines for Examination", in the present application, the expressions such as "greater than", "less than", "exceed" are understood as not including the number; the expressions such as "above", "below", "within" are understood as including the number. In addition, in the description of the embodiments of the present application, the meaning of "multiple" is more than two (including two), and similar expressions related to "multiple" are also understood in this way, for example, "multiple groups", "multiple times", etc., unless otherwise explicitly specified.

[0060] In the description of the embodiments of the present application, the spatial-related expressions used, such as "center", "longitudinal", "transverse", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "vertical", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. The indicated orientation or position relationship is based on the orientation or position relationship shown in the specific embodiment or the drawing, and is only for the convenience of describing the specific embodiments of the present application or for the reader to understand, and does not indicate or imply that the indicated device or component must have a specific position, a specific orientation, or be constructed or operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0061] Unless otherwise explicitly specified or limited, in the description of the embodiments of the present application, the terms "mount", "connect", "connect", "fix", "set", etc. should be interpreted broadly. For example, the "connection" can be a fixed connection, or a detachable connection, or an integral setting; it can be a mechanical connection, or an electrical connection, or a communication connection; it can be directly connected, or indirectly connected through an intermediate medium; it can be the internal communication or interaction relationship of two elements. For those skilled in the art to which the present application belongs, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0062] Please refer toFigure 1 The embodiment provides a scraper type conveying device fault detection device, which comprises the following components.

[0063] a base 1;

[0064] a first fixed support 2, which is fixedly arranged on the base 1;

[0065] a movable support 3, one end of which is rotatably arranged on the first fixed support 2;

[0066] a sprocket 4, the gear teeth of which are engaged to a chain of the scraper type conveying device, and a transmission shaft 8 of the sprocket 4 is movably arranged on the movable support 3 through a bearing 9;

[0067] an adjusting support, which is arranged between the movable support 3 and the base 1, and is used for adjusting the pressure of the sprocket 4 on the chain of the scraper type conveying device;

[0068] a second fixed support 6, which is arranged on the base 1;

[0069] an inductive switch 7, which is arranged on the second fixed support 6, and is connected to a controller of a scraper motor of the scraper type conveying device, and is spaced apart from the movable support 3 by a preset distance.

[0070] By arranging a plurality of scraper type conveying device fault detection devices at intervals on a scraper chain of the scraper type conveying device, the sprocket 4 of the scraper type conveying device fault detection device is engaged to the scraper chain of the scraper type conveying device, and the pressure of the sprocket 4 on the chain is kept stable due to the adjusting support; when the scraper chain of the scraper type conveying device is normally operated, the chain rotates on the movable support 3 under the action of the chain; when the shaft pin of the scraper chain is disengaged, the sprocket 4 drives the movable support 3 to rotate around the first fixed support 2 under the pressure of the adjusting support, so that the movable support 3 is disengaged from the detection of the inductive switch 7 on the second fixed support 6, and an alarm signal is sent to the motor controller of the scraper type conveying device, so that the scraper type conveying device can be prewarned when an initial fault occurs, and a worker can perform corresponding processing, thereby avoiding significant damage to the device in the later period and reducing the safety hazard of the device.

[0071] In some embodiments, the adjusting support comprises:

[0072] a support rod 51, one end of which is fixedly arranged on the base 1, and the support rod 51 passes through the movable support 3;

[0073] A first spring 52 is sleeved on a support rod 51 on one side of the movable support 3;

[0074] A second spring 53 is sleeved on the support rod 51 on the other side of the movable support 3;

[0075] An adjusting bolt 54 is threadedly connected to the other end of the support rod 51.

[0076] The first spring 52 provides an upward force to the movable support 3, and the second spring 53 provides a downward force to the movable support 3. The tightness of the first spring 52 and the second spring 53 is adjusted by the adjusting bolt 54 on the support rod 51, so that the movable support 3 is kept within the detection range of the inductive switch 7, and the sprocket 4 has a certain pressure on the chain of the scraper type conveying device, without too much pressure to avoid wearing the track or causing the scraper load to rise.

[0077] In some embodiments, the adjusting support further comprises:

[0078] A first gland 55 is arranged between the adjusting bolt 54 and the second spring 53;

[0079] A second gland 56 is arranged between the second spring 53 and the movable support 3;

[0080] A third gland 57 is arranged between the first spring 52 and the movable support 3;

[0081] A fourth gland 58 is arranged between the first spring 52 and the base 1.

[0082] The first gland 55, the second gland 56, the third gland 57 and the fourth gland 58 facilitate the adjustment of the tightness of the first spring 52 and the second spring 53, and avoid damaging the movable support 3 or the base 1 when adjusting the tightness of the first spring 52 and the second spring 53.

[0083] In some embodiments, a broken chain detector is further included, which is arranged on a transmission shaft 8 of the sprocket 4, and the inductive switch 7 is connected to a controller of a scraper motor of the scraper type conveying device.

[0084] By setting a chain breakage detector on the chain wheel 4, when the chain of the scraper type conveying device breaks and causes the chain wheel 4 to be unable to rotate, the chain breakage detector detects that the chain wheel 4 does not rotate, and it can be judged that the chain of the scraper type conveying device breaks. The chain breakage detector is a zero speed switch. The zero speed switch is a safety protection device of a mechanical equipment, mainly used for detecting the zero speed state of the equipment, so as to prevent personnel from being injured or the equipment from being damaged. Its working principle is mainly based on electromagnetic induction and mechanical principle. When the equipment stops running or runs at a very slow speed, the zero speed switch detects this state and generates a signal. In other embodiments, the chain breakage detector can also use a capacitive type speed sensor, a magnetic type speed sensor, a laser type speed sensor, etc. The speed of the chain wheel 4 is detected by the speed sensor, and when the speed of the chain wheel 4 is slow or zero, it is judged that the chain of the scraper type conveying device breaks.

[0085] In some embodiments, the movable support 3 is rotatably arranged on the first fixed support 2 through a support shaft pin 11. The movable support 3 is rotatably arranged on the first fixed support 2 through the support shaft pin 11. When the chain of the scraper type conveying device breaks down, the movable support 3 rotates along the support shaft pin 11 under the action of the adjusting support, so that the movable support 3 is out of the detection range of the inductive switch 7, and the inductive switch 7 sends an alarm signal.

[0086] In some embodiments, the inductive switch 7 is a proximity switch. The inductive switch 7 uses a proximity switch. The proximity switch is a position switch that can be operated without mechanical direct contact with the moving parts. When the object approaches the sensing surface of the proximity switch to the action distance, the switch can be actuated without mechanical contact and any pressure, thereby driving the direct current electric appliance or providing control instructions to the computer (plc) device. The proximity switch is a switch type sensor (i.e. non-contact switch), which has the characteristics of travel switch and micro switch, and has sensing performance, reliable action, stable performance, fast frequency response, long service life, strong anti-interference ability, waterproof, shockproof, corrosion resistant and other characteristics. The product has inductive, capacitive, Hall, AC and DC types. In other embodiments, the inductive switch 7 can also use an infrared inductor composed of an infrared emitter and an infrared receiver. When the movable support 3 is between the infrared emitter and the infrared receiver, the infrared receiver cannot receive the infrared rays sent by the infrared emitter, and when the movable support 3 is out of the detection area, the infrared receiver will receive the infrared rays sent by the infrared emitter, and then an alarm signal is sent according to whether the infrared receiver receives the infrared rays sent by the infrared emitter.

[0087] In some embodiments, a scraper type conveying device fault detection device is provided, the device is installed on the device, the chain wheel 4 is pressed on the chain of the scraper, the chain wheel 4 module is the same as the module of the chain of the scraper during processing, and the tightness of the spring is adjusted according to the pressure of the chain wheel 4 on the chain after being pressed on the chain, wherein the chain wheel 4 has a certain pressure on the chain and the pressure cannot be too large to avoid wearing the track or causing the scraper load to rise

[0088] A chain break detector, such as a zero speed switch, is installed on the transmission shaft 8 of the chain wheel 4, and a proximity switch is installed on the second fixed support 6, wherein the proximity switch maintains a distance of 3mm between the movable support 3.

[0089] Three same fault detection devices are installed on both sides of the chain of the scraper, and each is about 1.5 meters apart, wherein 2-4 fault detection devices can be installed, and 3 are recommended, which needs to be determined according to the length of the scraper. In principle, for a scraper with a length of more than 10 meters, one device is added for every 10 meters on a single side.

[0090] The chain break sensor 10 and the sensing switch 7 in the three devices on the same side are connected with the scraper motor to establish a jump stop interlock, and a time delay of 2 seconds is set at each detection point, and a program is made as follows: when the alarm of one of the six occurs, the DCS screen starts to display the alarm information, but does not trigger the stop interlock; when the alarms of three of the six detection points occur at the same time (6 choose 3), the interlock is triggered to jump stop the scraper main drive motor. The three devices on the other side of the scraper also have the same principle.

[0091] When the shaft pin of the scraper chain appears to be off (such as half off), the chain wheel 4 is pressed under the pressure of the first spring 52 and then the second spring 53, the movable support 3 is separated from the detection of the proximity switch, and an alarm occurs; when there is foreign matter or the shaft pin on one side is off but not detected, causing the chain link to turn up (down because there is a track to block, it will not turn up), the chain wheel 4 will move up, and at this time the movable support 3 will also move up, thereby separating from the sensing switch 7, causing an alarm; when the chains on both sides of the scraper are broken, the chain is separated, so that the chain wheel 4 cannot rotate, at this time the chain break sensor 10 is effective, and a single alarm occurs, and two interlocks jump stop the main motor (6 choose 4 must have two of them are chain break sensors 10).

[0092] Through the device, initial faults can be automatically found, equipment managers can plan maintenance of the equipment, and the device does not need to be detected after a very serious fault occurs; at the same time, the investment is small, the cost is far less than the direct loss when a fault occurs, and the cost is far less than the indirect loss; and the device is a separate mechanism, which does not affect other equipment, that is, the production efficiency is high.

[0093] Also provided is another technical solution, a scraper type conveying device fault detection device, comprising the scraper type conveying device fault detection device as described above;

[0094] The scraper type conveying device fault detection device is arranged at a preset interval on the chain of the scraper type conveying device, and comprises:

[0095] a base 1;

[0096] a first fixed support 2, which is fixedly arranged on the base 1;

[0097] a movable support 3, one end of which is rotatably arranged on the first fixed support 2;

[0098] a sprocket 4, the teeth of which are engaged with the chain of the scraper type conveying device, and the transmission shaft 8 of the sprocket 4 is movably arranged on the movable support 3 through a bearing 9;

[0099] an adjusting support, which is arranged between the movable support 3 and the base 1, and is used for adjusting the pressure of the sprocket 4 on the chain of the scraper type conveying device;

[0100] a second fixed support 6, which is fixedly arranged on the base 1;

[0101] an inductive switch 7, which is arranged on the second fixed support 6 and is connected to the controller of the scraper motor of the scraper type conveying device, and is spaced apart from the movable support 3 by a preset distance.

[0102] By arranging a plurality of scraper type conveying device fault detection devices at intervals on the scraper chain of the scraper type conveying device, the sprocket 4 of the scraper type conveying device fault detection device is engaged with the scraper chain of the scraper type conveying device, and due to the action of the adjusting support, the pressure of the sprocket 4 on the chain is kept stable. When the scraper chain of the scraper type conveying device is running normally, the chain rotates on the movable support 3 under the action of the chain. When the shaft pin of the scraper chain appears to be detached, the sprocket 4 will drive the movable support 3 to rotate around the first fixed support 2 under the pressure action of the adjusting support, so that the movable support 3 is out of the detection of the inductive switch 7 on the second fixed support 6, and an alarm signal is sent to the motor controller of the scraper type conveying device, so that early warning can be made when the scraper type conveying device has an initial fault, and corresponding treatment can be performed to avoid significant damage to the equipment in the later stage and reduce the safety hazards of the equipment.

[0103] Finally, it should be noted that the above embodiments have been described in the specification and drawings of the application, but this does not limit the patent protection scope of the application. Any equivalent structure or equivalent process replacement or modification based on the essential concept of the application, using the content described in the specification and drawings of the application, and directly or indirectly implementing the technical solutions of the above embodiments in other related technical fields, etc., are all included in the patent protection scope of the application.

Claims

1. A fault detection device for scraper-type conveyor equipment, characterized in that, The device comprises: a base; a first fixed support fixedly arranged on the base; a movable support rotatably arranged on the first fixed support at one end; a sprocket, the teeth of which are engaged with the chain of the scraper-type conveying device, the transmission shaft of the sprocket being movably arranged on the movable support through a bearing; an adjusting support arranged between the movable support and the base, the adjusting support being used to adjust the pressure of the sprocket on the chain of the scraper-type conveying device; a second fixed support arranged on the base; an inductive switch arranged on the second fixed support, the inductive switch being connected to the controller of the scraper motor of the scraper-type conveying device, the inductive switch being spaced apart from the movable support by a preset distance.

2. The scraper-type conveyance device failure detection device according to claim 1, characterized by, The adjusting support comprises: a support rod, one end of which is fixedly arranged on the base, the support rod passing through the movable support; a first spring sleeved on the support rod at one side of the movable support; a second spring sleeved on the support rod at the other side of the movable support; an adjusting bolt threadedly connected to the other end of the support rod.

3. The scraper-type conveyance device failure detection device according to claim 2, characterized by, The adjusting support further comprises: a first gland arranged between the adjusting bolt and the second spring; a second gland arranged between the second spring and the movable support; a third gland arranged between the first spring and the movable support; a fourth gland arranged between the first spring and the base.

4. The scraper-type conveyance apparatus failure detection device according to claim 1, characterized by, A chain breakage detector is further arranged on the transmission shaft of the sprocket, the inductive switch being connected to the controller of the scraper motor of the scraper-type conveying device.

5. The scraper-type conveyance device failure detection device according to claim 4, characterized by The chain breakage detector is a zero-speed switch.

6. The scraper-type conveyance apparatus failure detection device according to claim 1, characterized by, The movable support is rotatably arranged on the first fixed support through a support shaft pin.

7. The scraper-type conveyance apparatus failure detection device according to claim 1, characterized by, The inductive switch is a proximity switch.

8. A flight-type conveying device, characterized in that The device further comprises a scraper-type conveying device fault detection device as claimed in any one of claims 1-7. The scraper-type conveying device fault detection device is multiple, and is arranged on the chain of the scraper-type conveying device at a preset interval distance.

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