Blockage detection device for bucket-wheel reclaimer

Abstract

The utility model relates to the technical field of material blockage detection, and discloses a material blockage detection device for a bucket-wheel reclaimer, which comprises a base assembly, a trigger assembly is fixedly mounted at the upper end of the base assembly, and a balance assembly is movably mounted in the middle of the upper end of the trigger assembly. The coal receiving plate rotates around the connecting shaft under the pressure of the coal briquettes, as the weight of the sporadic coal briquettes is not very large, the situation that a heavy supporting spring on the lower portion is compressed, and an alarm mechanism is triggered is avoided, and when a large amount of coal overflows due to material blockage, the coal falls onto the coal receiving plate, and the coal receiving plate turns over; when the coal receiving plate rotates to a certain angle, the coal receiving plate makes contact with the coal receiving blocking rod, the coal receiving blocking rod stops the coal receiving plate from rotating, meanwhile, coal on the coal receiving plate is prevented from falling off, a large amount of accumulated coal acts on the supporting spring through the coal receiving plate, the supporting block and the trigger base, the trigger base triggers the detection head, and the process is stopped.

Description

Technical Field

[0001] This utility model relates to the field of material blockage detection technology, specifically a material blockage detection device for a bucket wheel reclaimer. Background Technology

[0002] Bucket wheel reclaimers are high-efficiency equipment for continuous loading and unloading of bulk materials in modern industry. They are widely used in the reclaiming operations of bulk material storage yards in ports, docks, steel plants, coking plants, coal storage yards, power plants, etc. They consist of a belt conveyor arm that can tilt and swing horizontally, a bucket wheel at its front end, a frame, and a running mechanism. The belt can run in both directions. When reclaiming materials, the bucket wheel picks up the materials and sends them out through the conveyor arm. When stacking materials, the goods transported by the main conveyor are thrown into the storage yard through the conveyor arm.

[0003] During operation, bucket wheel reclaimers often experience material overflow due to wet and sticky coal clogging the buckets. If the coal overflow is not detected in time and operation continues, a large amount of coal will accumulate on the reclaimer, which will seriously damage the steel structure of the reclaimer and also affect production efficiency.

[0004] Currently, existing mechanical material blocking switches are extremely sensitive and cannot clearly distinguish between a large amount of coal spillage and an occasional small piece of coal falling. As long as a single piece of coal triggers the switch, it will cause an alarm, resulting in the work process stopping and affecting efficiency.

[0005] Therefore, we propose a blockage detection device for bucket wheel reclaimers to solve the aforementioned problems. Utility Model Content

[0006] The purpose of this invention is to provide a blockage detection device for a bucket wheel reclaimer, in order to solve the problem mentioned in the background art that the existing mechanical blockage switch is extremely sensitive and cannot clearly distinguish between a large amount of coal overflowing and an occasional small piece of coal spilling. As long as a piece of coal triggers the switch, it will alarm, causing the operation to stop and affecting efficiency.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a blockage detection device for a bucket wheel reclaimer, comprising a base assembly, wherein slide rail baffles are fixedly installed on both sides of the upper end of the base assembly, an alarm limit component is fixedly installed on one side of the inner wall of the slide rail baffle, a trigger component is fixedly installed on the upper end of the base assembly, and a balancing component is movably installed in the middle of the upper end of the trigger component.

[0008] The triggering assembly includes a triggering base and coal receiving rods fixedly installed on both sides of the upper end of the triggering base. Balance springs are fixedly installed on both sides of the upper end of the triggering base near the middle. Support blocks are fixedly installed at both ends of the upper middle part of the triggering base. A connecting shaft is fixedly installed on one side of the upper end of the support block.

[0009] Preferably, the base assembly comprises a long base plate and support springs fixedly installed on both sides of the middle of the upper end of the long base plate, and a limiting protection block is fixedly installed on the middle of the upper end of the long base plate.

[0010] Preferably, the alarm limiting assembly comprises a fixing mechanism and a pressing mechanism threadedly connected in the inner cavity of the fixing mechanism, and the alarm mechanism is installed in the inner cavity of the fixing mechanism through the pressing mechanism.

[0011] Preferably, the fixing mechanism comprises a square block and a circular groove formed in the middle of the upper end of the square block, and a threaded groove is formed in the middle of one side of the inner wall of the circular groove.

[0012] Preferably, the pressing mechanism comprises a threaded rod and a bearing fixedly installed on one end of the threaded rod, and a semicircular clamping block is fixedly installed on one end of the bearing.

[0013] Preferably, the alarm mechanism comprises an alarm and a connection line source arranged at the lower end of the alarm, the outer wall of the alarm is fixed through a concave block, and a detection head is connected to one end of the connection line source.

[0014] Preferably, the balancing assembly comprises a coal receiving plate and an extension block fixedly installed on the middle of the lower end of the coal receiving plate, and a through groove is formed in the middle of one end of the extension block.

[0015] Compared with the prior art, the utility model has the beneficial effects that:

[0016] 1. When sporadic coal blocks fall on the coal receiving plate, the coal receiving plate will rotate around the connecting shaft under the pressure of the coal blocks, and since the weight of the sporadic coal blocks is not very large, the lower heavy support spring will not be compressed, triggering the alarm mechanism, when the blockage causes a large amount of coal to overflow, the coal falls on the coal receiving plate, the coal receiving plate overturns, and when the coal receiving plate rotates to a certain angle, the coal receiving plate touches the coal receiving bar, the coal receiving bar blocks the rotation of the coal receiving plate and also prevents the coal on the coal receiving plate from falling, and a large amount of accumulated coal acts on the support spring through the coal receiving plate, the support block and the trigger base, so that the trigger base triggers the detection head, stopping the process.

[0017] 2. The alarm is fixedly installed on one side of the outer wall of the slide baffle through the concave block, the detection head is inserted into the inner cavity of the circular groove from the lower end, the semicircular clamping block is moved by rotating the threaded rod threadedly connected in the inner cavity of the threaded groove, and the detection head is limited and fixed in the inner cavity of the circular groove. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a whole three-dimensional structure schematic view of the utility model;

[0019] Figure 2 It is a three-dimensional structure schematic view of the alarm mechanism of the utility model;

[0020] Figure 3The utility model discloses a Figure 2 The enlarged view of A in the utility model is shown in the figure.

[0021] Figure 4 The utility model discloses a trigger assembly, a balance assembly three-dimensional structure schematic diagram.

[0022] In the figure: 1, base assembly, 11, long bottom plate, 12, support spring, 13, limit protection block, 2, slide baffle, 3, alarm limiting assembly, 31, fixed mechanism, 311, square block, 312, circular groove, 313, screw groove, 32, compression mechanism, 321, threaded rod, 322, bearing, 323, semicircular clamp block, 33, alarm mechanism, 331, alarm, 332, connecting line source, 333, detection head, 334, concave block, 4, trigger assembly, 41, trigger base, 42, coal receiving rod, 43, balance spring, 44, support block, 45, connecting shaft, 5, balance assembly, 51, coal receiving plate, 52, extension block, 53, through groove. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0024] Embodiment one: please refer to Figures 1-4 A kind of for the material blocking detection device of bucket wheel reclaimer, including base assembly 1, the upper end of base assembly 1 two sides are respectively fixedly installed with slide baffle 2, the inner wall of slide baffle 2 one side is fixed with alarm limiting assembly 3, the upper end of base assembly 1 is fixedly installed with trigger assembly 4, the upper end of trigger assembly 4 middle part is movably installed with balance assembly 5.

[0025] Trigger assembly 4 includes trigger base 41 and fixedly installed coal receiving rod 42 on the upper end of trigger base 41 two sides, the upper end of trigger base 41 is close to the middle two sides and is fixedly installed with balance spring 43, the upper end of trigger base 41 middle part two ends are respectively fixedly installed with support block 44, the upper end of support block 44 one side is fixedly installed with connecting shaft 45.

[0026] Base assembly 1 includes long bottom plate 11 and fixedly installed support spring 12 on the upper end of long bottom plate 11 two sides close to middle part, the upper end of long bottom plate 11 middle part is fixedly installed with limit protection block 13.

[0027] The balance assembly 5 comprises a coal receiving plate 51 and an extension block 52 fixedly installed at the middle of the lower end of the coal receiving plate 51, a through groove 53 is formed in the middle of one end of the extension block 52, and the connecting shaft 45 is movably installed in the inner cavity of the through groove 53, and the upper ends of the balance springs 43 are fixedly installed on both sides of the lower end of the coal receiving plate 51.

[0028] The coal receiving plate 51 is made of a 6mm steel plate, and has a size of 350mm*350mm, the steel plate is made of Q235, the long base plate 11 is made of a 20mm steel plate, and has a size of 300mm*300mm, the steel plate is made of Q235, the coal receiving rod 42, the limiting protection block 13 and the supporting block 44 are made of a 20mm steel plate, and the steel plate is made of Q235, and the balance spring 43 is made of a steel spring 1.0*100mm, and the supporting spring 12 is made of a steel spring 2.0*100mm.

[0029] In the embodiment, when sporadic coal blocks fall on the coal receiving plate 51, the coal receiving plate 51 rotates around the connecting shaft 45 under the pressure of the coal blocks, and since the weight of the sporadic coal blocks is not very large, the lower heavy supporting spring 12 is not compressed, and the alarm mechanism 33 is not triggered, the coal blocks roll off the coal receiving plate 51 to the ground, and are not accumulated on the coal receiving plate 51, and then the coal receiving plate 51 returns to the original horizontal position under the action of the light balance spring 43, and then, when the blocked material causes a large amount of coal to overflow, the coal falls on the coal receiving plate 51, the coal receiving plate 51 overturns, and when the coal receiving plate 51 rotates to a certain angle, the coal receiving plate 51 touches the coal receiving rod 42, the coal receiving rod 42 blocks the rotation of the coal receiving plate 51, and also prevents the coal on the coal receiving plate 51 from falling, and a large amount of accumulated coal acts on the supporting spring 12 through the coal receiving plate 51, the supporting block 44 and the triggering base 41, so that the triggering base 41 triggers the detection head 333 to stop the flow. In the process, the slide chute baffle 2 ensures that the triggering base 41 always reciprocates within a certain range, and the limiting protection block 13 ensures that the detection head 333 is not damaged by the triggering base 41 after being triggered.

[0030] Embodiment two: the embodiment is improved on the basis of embodiment one, and details can be known from Figures 2-3 The alarm limiting assembly 3 comprises a fixing mechanism 31 and a pressing mechanism 32 threadedly connected in the inner cavity of the fixing mechanism 31, and the alarm mechanism 33 is installed in the inner cavity of the fixing mechanism 31 through the pressing mechanism 32.

[0031] The fixing mechanism 31 comprises a square block 311 and a circular groove 312 formed in the middle of the upper end of the square block 311, and a threaded groove 313 is formed in the middle of one side of the inner wall of the circular groove 312.

[0032] The pressing mechanism 32 comprises a threaded rod 321 and a bearing 322 fixedly installed at one end of the threaded rod 321, one end of the bearing 322 is fixedly installed with a semicircular clamp block 323, the threaded rod 321 is threadedly connected in the inner cavity of the threaded groove 313, and the semicircular clamp block 323 is movably installed in the inner cavity of the circular groove 312 under the driving of the threaded rod 321.

[0033] The alarm mechanism 33 comprises an alarm 331 and a connecting line source 332 arranged at the lower end of the alarm 331, the outer wall of the alarm 331 is fixed through a concave block 334, one end of the connecting line source 332 is connected with a detection head 333, the detection head 333 is limitingly installed in the inner cavity of the circular groove 312 through the semicircular clamp block 323, and the alarm 331 is fixedly installed at one side of the outer wall of the slide way baffle 2 through the concave block 334.

[0034] The alarm 331, the connecting line source 332 and the detection head 333 are all prior arts, which are not limited herein and can be purchased and installed as finished products, such as JTT programmable timing alarm and the like.

[0035] In the embodiment, when the alarm mechanism 33 is installed, the alarm 331 is fixedly installed at one side of the outer wall of the slide way baffle 2 through the concave block 334, the detection head 333 is inserted from the lower end of the inner cavity of the circular groove 312, the semicircular clamp block 323 is moved by rotating the threaded rod 321 threadedly connected in the inner cavity of the threaded groove 313, and the detection head 333 is limitingly fixed in the inner cavity of the circular groove 312, and meanwhile, such arrangement can facilitate the replacement and maintenance of the detection head 333.

[0036] Working principle: when the scattered coal blocks fall on the coal receiving plate 51, the coal receiving plate 51 will rotate around the connecting shaft 45 due to the pressure of the coal blocks, and since the weight of the scattered coal blocks is not very large, the lower heavy supporting spring 12 will not be compressed to trigger the alarm mechanism 33, when the blockage causes a large amount of coal to overflow, the coal falls on the coal receiving plate 51, the coal receiving plate 51 is overturned, and when it is rotated to a certain angle, the coal receiving plate 51 touches the coal receiving rod 42, the coal receiving rod 42 blocks the rotation of the coal receiving plate 51 and also prevents the coal on the coal receiving plate 51 from falling, a large amount of accumulated coal acts on the supporting spring 12 through the coal receiving plate 51, the supporting block 44 and the trigger base 41, so that the trigger base 41 triggers the detection head 333 to stop the process, wherein when the alarm mechanism 33 is installed, the alarm 331 is fixedly installed at one side of the outer wall of the slide way baffle 2 through the concave block 334, the detection head 333 is inserted from the lower end of the inner cavity of the circular groove 312, and the semicircular clamp block 323 is moved by rotating the threaded rod 321 threadedly connected in the inner cavity of the threaded groove 313 to limit and fix the detection head 333 in the inner cavity of the circular groove 312.

[0037] The contents not described in detail in the specification belong to the prior art known to those skilled in the art.

[0038] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A device for detecting material blockage for a bucket wheel reclaimer, comprising a base assembly (1), characterized in that: The upper end of the base assembly (1) is fixedly installed with slide baffle (2) on both sides, the inner wall of slide baffle (2) is fixedly installed with alarm limiting assembly (3) on one side, the upper end of base assembly (1) is fixedly installed with trigger assembly (4), the upper end of trigger assembly (4) is movably installed with balance assembly (5) in the middle. The trigger assembly (4) includes trigger base (41) and coal receiving gate lever (42) fixedly installed on both sides of the upper end of trigger base (41), balance spring (43) is fixedly installed on both sides of the upper end of trigger base (41) near the middle, support block (44) is fixedly installed on both ends of the upper end of trigger base (41) in the middle, connection shaft (45) is fixedly installed on one side of the upper end of support block (44).

2. The blockage detection device for the bucket wheel reclaimer according to claim 1, characterized in that The base assembly (1) includes long bottom plate (11) and support spring (12) fixedly installed on both sides of the upper end of long bottom plate (11) near the middle, limit protection block (13) is fixedly installed on the upper end of long bottom plate (11) in the middle.

3. The blockage detection device for the bucket wheel reclaimer according to claim 1, characterized in that: The alarm limiting assembly (3) includes fixing mechanism (31) and compression mechanism (32) screwed in the inner cavity of fixing mechanism (31), alarm mechanism (33) is installed in the inner cavity of fixing mechanism (31) through compression mechanism (32).

4. The blockage detection device for the bucket wheel reclaimer according to claim 3, characterized in that The fixing mechanism (31) includes square block (311) and circular groove (312) opened in the upper end of square block (311) in the middle, thread groove (313) is opened in the inner wall of circular groove (312) on one side in the middle.

5. The blockage detection device for the bucket wheel reclaimer according to claim 3, characterized in that: The compression mechanism (32) includes threaded rod (321) and bearing (322) fixedly installed on one end of threaded rod (321), semicircular clamp block (323) is fixedly installed on one end of bearing (322).

6. The blockage detection device for the bucket wheel reclaimer according to claim 3, characterized in that: The alarm mechanism (33) includes alarm (331) and connection line source (332) arranged at the lower end of alarm (331), the outer wall of alarm (331) is fixed through concave block (334), detection head (333) is connected on one end of connection line source (332).

7. The blockage detection device for an excavator according to claim 1, characterized in that: The balance assembly (5) includes coal receiving plate (51) and extension block (52) fixedly installed on the lower end of coal receiving plate (51) in the middle, through groove (53) is opened in one end of extension block (52) in the middle.

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