Bulk machine with rope slack limiting and dust sealing device

Abstract

The utility model provides a kind of bulk machine with rope loosening limiting and dust sealing device belongs to bulk material handling equipment technical field.To solve the problem of high failure rate and serious dust pollution of existing bulk machine, the device includes rack, feed inlet, discharge port, driving hoist device and telescopic sealing cylinder, set up one initiative rope loosening limiting switch device, when discharge port drops in place and steel wire rope slackens, trigger sensing switch through mechanical linkage, automatically cut off driving hoist device power supply, prevent equipment damage;And set up one guide rope sealing device, effectively seal the entrance of steel wire rope passing through feed inlet;The utility model can also collect and recycle dust generated in sealing and charging process into material through single dust collector and dust recycling conveying reamer.

Description

Technical Field

[0001] This utility model relates to the technical field of bulk mineral powder loading machines, specifically to a bulk loading machine with a slack rope limiting device and a dust sealing device. Background Technology

[0002] Due to the large and frequent shipments of mineral powder, the failure rate of bulk loading machines is relatively high, especially the problem of wire rope damage. On average, each bulk loading machine needs to be repaired twice a month due to wire rope or pulley damage, which seriously affects the normal shipment of mineral powder. At present, two types of bulk loading machines are mainly used on site: a cement bulk loading machine with publication number CN203359572U and a new type of bulk loading machine with publication number CN103129981A.

[0003] Utility model patent CN203359572U discloses a cement bulk loading machine, including a frame, a motor mounted on the frame, a reducer connected to the motor via a coupling, a telescopic hose located below the frame, and a discharge port located at the top of the telescopic hose. The telescopic hose includes a telescopic inner cylinder and a telescopic outer cylinder located outside the inner cylinder, supported by a strut. The outer cylinder has three sets of fixing rings. The output shaft of the reducer is connected to three steel wire ropes, which pass sequentially through a limit wheel, a pulley, a rope slack device, a roller, and the fixing rings, and are connected to the discharge hopper. In this design, the telescopic hose of the bulk loading machine is lifted by the three steel wire ropes passing through the fixing rings on the outer cylinder. Because the pulleys and the three steel wire ropes are guided multiple times and the three steel wire ropes need to maintain a high degree of balance during movement, damage to any one steel wire rope or pulley will lead to overall damage. In actual use, the failure rate is high and it cannot meet the frequent delivery needs on site.

[0004] Utility model patent CN103129981A discloses a novel bulk loading machine, including a feed inlet, a drive unit, a slack rope switch device, a winch device, and a discharge device. The drive unit includes a motor and a reducer connected to the motor, with a winch device located on one side of the reducer. The slack rope switch device includes a control switch, a slack rope, and a pulley block located at one end of the slack rope. One end of the slack rope is fixed to the winch device, and the other end is connected to the pulley block. The control switch is located on the outside of the winch device. The discharge device includes a telescopic joint and a discharge port located at the bottom of the telescopic joint, with a feed inlet located at the top of the discharge device. However, this structure suffers from drawbacks. Because the pulley block is located inside the bulk loading head, the wire rope and pulley block wear out quickly. Furthermore, the wire rope inlet lacks a reliable sealing measure, leading to material dust leakage during loading, which is environmentally unfriendly. The leaked dust also covers the equipment, affecting its normal operation and service life.

[0005] The two mainstream bulk loading machine solutions currently available on the market have certain limitations, especially when faced with high-intensity operations. Therefore, it is necessary to find a design solution that can meet both efficient and stable operation and adapt to high-intensity working conditions. Utility Model Content

[0006] To address the aforementioned deficiencies in the existing technology, this utility model provides a bulk loading machine with a slack rope limiting and dust sealing device, which solves the environmental problems and high failure rate in the existing mineral powder delivery process, achieving efficient, stable, and low-failure-rate delivery of mineral powder, while reducing environmental pollution.

[0007] To achieve the above objectives, this utility model provides the following technical solution: A bulk loading machine with a slack rope limiting and dust sealing device includes a frame, a discharge port suspended by a steel wire rope, a drive winch for retracting the steel wire rope, and a telescopic sealing cylinder. The upper end of the telescopic sealing cylinder is connected to the feed port, and the lower end is connected to the discharge port. The steel wire rope passes through the interior of the telescopic sealing cylinder. The machine also includes: An active slack rope limit switch device, connected to the wire rope, is used to generate a control signal to disconnect the power supply of the drive winch when the discharge port descends to contact the target container, causing the wire rope to slack. The guide rope sealing device is located below the active rope slack limit switch and connected to the feed inlet. The wire rope enters the feed inlet after passing through the guide rope sealing device.

[0008] Furthermore, the active slack rope limit switch device includes: A fixed frame is fixedly connected to the frame and located below the drive hoisting device; an inductive control switch is fixedly connected to the fixed frame. A sliding frame is slidably connected to a fixed frame, and a movable pulley group is rotatably connected inside. The wire rope passes through the movable pulley group and enters the rope guide sealing device. An elastic element connects the sliding frame and the fixed frame; The baffle is fixedly connected to the sliding frame; When the wire rope is taut, its tension overcomes the preload of the elastic element, causing the sliding frame to be driven to the first position. The baffle corresponds to the inductive switch to trigger the inductive control switch to control the power supply of the drive winch device. When the wire rope is in a slack state, the elastic element drives the sliding frame and the baffle to move to the second position, so that the baffle moves away from the inductive control switch to control the power supply of the drive winch to be disconnected.

[0009] Furthermore, the baffle is connected to the fixed frame via a sliding plate. The fixed frame is provided with an elongated hole. The fixing bolt passes through the sliding plate, the fixed frame, the sliding frame and the pulley block from the outside to the inside in sequence, and then extends to the outside of the fixed frame and is fixed by a nut.

[0010] Furthermore, the fixed frame and the movable frame are provided with rectangular through holes for the steel wire rope to pass through.

[0011] Furthermore, the guide rope sealing device consists of a positioning guide pulley group, an upper flange, a dustproof sealing gasket, a lower flange, and a sealing tube connected in sequence from top to bottom. The sealing tube is located directly below the drive winch device, and its lower end is connected to the feed port. The wire rope passes through the positioning guide pulley group, the upper flange, the dustproof sealing gasket, and the lower flange in sequence from top to bottom before entering the interior of the sealing tube.

[0012] Furthermore, it also includes a single dust collector, wherein the dust collection pipe of the single dust collector is connected to a telescopic sealing cylinder, and a dust collection pipe is connected between the sealing pipe and the dust collection pipe.

[0013] Furthermore, a dust recovery conveying auger is provided below the outlet of the individual dust collector. The inlet of the dust recovery conveying auger is connected to the outlet of the individual dust collector, and the outlet of the dust recovery conveying auger is connected to the dust collection pipe and located below the dust collection pipe.

[0014] The technical solution provided by this utility model has the following advantages compared with the prior art: 1. By setting an active rope slack limit switch device, the power supply to the drive winch device can be automatically cut off the moment the unloading port is in place and the wire rope is slack, and the stop position of the unloading port can be precisely controlled. This effectively prevents serious faults such as excessive slack of the wire rope, rope tangling, jumping out of the groove or even damage caused by continued rope release, which greatly improves the stability and safety of equipment operation. Moreover, the active rope slack limit switch device is set on the outside of the feed port to avoid the problem of rapid wear caused by the internal limit component. 2. The guide rope sealing device effectively solves the dust leakage problem at the wire rope inlet. Combined with the telescopic sealing cylinder, it effectively improves the sealing effect of the overall structure and reduces dust leakage during loading. Moreover, the sealing pipe of the guide rope sealing device is connected to the dust collection pipe of the individual dust collector through the dust collection pipe. At the same time, the telescopic sealing cylinder is also connected to the dust collection pipe of the individual dust collector. This can collect the dust raised inside the sealing pipe and the telescopic sealing cylinder during the loading process, avoiding the jamming problem caused by dust adhering to the inner wall of the guide rope sealing device. By adopting a combination of "source blocking" and "process capture", it ensures that dust is controlled in a closed system during loading and unloading operations, reducing the impact on the external working environment. 3. By setting up a dust recovery and conveying auger, the dust in the guide rope sealing device and telescopic sealing cylinder is recovered by a single dust collector and then conveyed to the telescopic sealing cylinder, so as to achieve effective recovery and utilization of mineral powder. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 Front view of the active rope slack limit switch device; Figure 3 Left view of the active rope slack limit switch device; Figure 4 Top view of the active rope slack limit switch device; Figure 5 This is a schematic diagram of the connection structure between the guide rope sealing device and the feed inlet.

[0017] in: 1-Frame; 2-Feed inlet; 3-Active rope slack limit switch device, 301-Fixed frame, 302-Sliding frame, 303-Moving pulley block, 304-Sliding plate, 305-Baffle, 306-Inductive control switch, 307-Tension spring, 308-Elongated hole, 309-Fixing bolt, 3010-Nut; 4-Steel wire rope; 5-Drive winch device; 6-Telescopic sealing cylinder; 7-Guide rope sealing device, 701-Positioning guide pulley block, 702-Upper flange, 703-Lower flange, 704-Sealing gasket, 705-Sealing pipe, 706-Dust collection pipe; 8-Discharge port; 9-Dust collection pipe; 10-Dust recovery conveying cutter; 11-Individual dust collector; 12-Material conveying system. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0019] like Figures 1-5 As shown, this utility model provides a bulk loading machine with a slack rope limiting and dust sealing device, including a frame 1, a feed inlet 2, an active slack rope limiting switch device 3, a wire rope 4, a drive winch device 5, a telescopic sealing cylinder 6, a guide rope sealing device 7, and a discharge port 8. The material conveying system 12 is connected to the telescopic sealing cylinder 6 through the feed inlet 2. The discharge port 8 is connected to the lower end of the telescopic sealing cylinder 6. The drive winch device 5 is fixedly connected to the upper part of the frame 1. One end of the wire rope 4 is wound around the drive winch device 5, and the other end passes through the active slack rope limiting switch device 3, the guide rope sealing device 7, the feed inlet 2, and the telescopic sealing cylinder 6 from top to bottom and is connected to the discharge port 8.

[0020] Specifically, the active slack rope limit switch device 3, such as Figures 1-4 As shown, it consists of a fixed frame 301, a sliding frame 302, a movable pulley block 303, a sliding plate 304, a baffle 305, a sensor control switch 306, and a tension spring 307. Figure 1 On the reference point of the view shown, the fixed frame 301 is fixedly connected to the bottom of the frame 1, and has a hollow frame structure. Long slots 308 are horizontally distributed along the left and right directions on both the front and rear sides. A sensor control switch 306 is fixedly connected to the lower end of the frame, which is connected to the power supply of the driving hoist 5 and can control its power supply. The sliding frame 302 also has a rectangular frame structure and is slidably connected to the inside of the fixed frame 301. The movable pulley group 303 is rotatably connected to the inside of the sliding frame 302, and the rotation axes of the two pulleys of the movable pulley group 303 are horizontally distributed along the front and rear directions. Two sets of sliding plates 304 are provided on the front and rear sides of the fixed frame 301, and the two sets of sliding plates 304 are parallel to the front and rear sides of the fixed frame 301. A baffle 305 is fixedly connected to the lower end of the sliding plate 304 located on the front side of the fixed frame 301, and the two are distributed in an L-shape. The baffle 305 is parallel to the lower surface of the fixed frame 301. The sliding frame 302 and the two sliding plates 305 are provided with through holes (not shown in the figure) corresponding to the positions of the elongated holes 308. The fixing bolts 309 pass through the through holes on the sliding plates 304, the elongated holes 308 on the fixing frame 301, the through holes on the sliding frame 302, and the movable pulley group 303 from front to back, and then extend to the rear side of the fixing frame 301 and are fixed by nuts 3010. It should be noted that the sliding frame 302 is not completely fixed and can still slide left and right along the elongated holes 308 on the fixing frame 302. In addition, rectangular through holes are provided on the upper and lower end faces of the sliding frame 302 and the fixing frame 301, which are used for the steel wire rope 4 to pass through from top to bottom. One end of the tension spring 307 is fixedly connected to the left side of the interior of the fixing frame 301, and the other end is fixedly connected to the left end of the sliding block 302. The tension spring 307 applies a restoring force to the sliding frame 301 to slide to the left.

[0021] like Figure 5 As shown, the guide rope sealing device 7 consists of a positioning guide pulley group 701, an upper flange 702, a lower flange 703, a dustproof sealing gasket 704, and a sealing tube 705. The sealing tube 705 is located directly below the active rope slack limit switch device 3, with its length distributed vertically. Its lower end is connected to the feed port, and its upper end is fixedly connected to the upper flange 702 and the lower flange 703. The positioning guide pulley group 701 is fixedly connected above the upper flange 702, and the dustproof sealing gasket 704 is fixedly connected between the upper flange 702 and the lower flange 703. The wire rope 4 passes through the positioning guide pulley group 701, the upper flange 702, the dustproof sealing gasket 704, and the lower flange 703 from top to bottom and then enters the interior of the sealing tube 705.

[0022] This device also includes a dust recovery and conveying auger 10 and a single dust collector 11. The single dust collector 11 is a single bag filter dust collector. The dust collection pipe 9 of the single dust collector 11 is connected to the telescopic sealing cylinder 6. The sealing pipe 705 is connected to the dust collection pipe 9 through the dust collection pipe 706. The inlet of the dust recovery and conveying auger 10 is connected to the outlet of the single dust collector 11. The outlet of the dust recovery and conveying auger 10 is located below the dust collection pipe 706 and is connected to the dust collection pipe 9. When the wire rope 4 generates dust by passing through the guide rope sealing device 7, it can enter the interior of the single dust collector 11 through the dust collection pipe 706 to avoid excessive dust adhering to the wire rope 4 during the material feeding process. At the same time, the dust inside the telescopic sealing cylinder 6 is also collected by the dust collection pipe 9 and the floating dust is collected into the interior of the single dust collector 11. The collected dust is conveyed to the interior of the dust collection pipe 9 through the dust recovery and conveying auger 10 and then discharged into the interior of the telescopic sealing cylinder 6, realizing the recycling and reuse of materials.

[0023] Additionally, it should be noted that when the wire rope 4 is taut, the gap between the two pulleys of the movable pulley block 303 and the gap between the two pulleys of the positioning guide pulley block 701 are on the same straight line. The wire rope 4 passes vertically from top to bottom through the movable pulley block 303, the positioning guide pulley block 701, the sealing tube 705, the feed port 2, and the telescopic sealing cylinder 6 before connecting to the discharge port 8.

[0024] The working principle of this device is as follows: During loading, the operator starts the drive winch 5, which releases the wire rope 4 downwards. The unloading port 8 descends smoothly and vertically under its own weight. During this process, the wire rope 4 is taut and drives the movable pulley block 303 and the sliding frame 302 to move to the right against the tension of the tension spring 307. At this time, the baffle 305 moves to the right along with the sliding plate 304 and the sliding frame 302. The baffle 305 blocks the induction control switch 306. After the induction control switch 306 is blocked, the power supply of the drive winch 5 is connected. At this time, the drive winch 5 is energized and can be operated. When the lower edge of the discharge port 8 contacts the ash loading port of the tank truck, the wire rope 4 slackens and does not exert force on the sliding frame 302 and the moving pulley block 303. At this time, under the tension of the tension spring 307, the sliding frame 302, the moving pulley block 303 and the baffle 305 move to the left. At this time, the baffle 305 moves away from the sensing area of ​​the inductive control switch 306, and the state of the inductive control switch 306 changes, thereby immediately cutting off the power to the drive winch device 5 and stopping it from releasing the rope. At this time, the material conveying system 12 begins to feed material to the feed port 2. The mineral powder falls into the tank truck through the telescopic sealing cylinder 6. The telescopic sealing cylinder 6 ensures that the material channel from the feed port 2 to the discharge port 8 is sealed. Throughout the process, the guide rope sealing device 7 always prevents dust from leaking out from the inlet of the wire rope 4. After the loading is completed, the drive winch device 5 rotates in the opposite direction, tightens the wire rope 4, and lifts the discharge port 8 back to its original position.

[0025] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.

Claims

1. A bulk loading machine with a slack rope limiting and dust sealing device, characterized in that, The machine includes a frame, a discharge port suspended by a wire rope, a drive winch for retracting the wire rope, and a telescopic sealing cylinder. The upper end of the telescopic sealing cylinder is connected to the feed port, and the lower end is connected to the discharge port. The wire rope passes through the interior of the telescopic sealing cylinder. The machine also includes: An active slack rope limit switch device, connected to the wire rope, is used to generate a control signal to disconnect the power supply of the drive winch when the discharge port descends to contact the target container, causing the wire rope to slack. The guide rope sealing device is located below the active rope slack limit switch and connected to the feed inlet. The wire rope enters the feed inlet after passing through the guide rope sealing device.

2. The bulk loading machine with slack rope limiting and dust sealing device according to claim 1, characterized in that, The active slack rope limit switch device includes: A fixed frame is fixedly connected to the frame and located below the drive hoisting device; an inductive control switch is fixedly connected to the fixed frame. A sliding frame is slidably connected to a fixed frame, and a movable pulley group is rotatably connected inside. The wire rope passes through the movable pulley group and enters the rope guide sealing device. An elastic element connects the sliding frame and the fixed frame; The baffle is fixedly connected to the sliding frame; When the wire rope is taut, its tension overcomes the preload of the elastic element, causing the sliding frame to be driven to the first position. The baffle corresponds to the inductive switch to trigger the inductive control switch to control the power supply of the drive winch device. When the wire rope is in a slack state, the elastic element drives the sliding frame and the baffle to move to the second position, so that the baffle moves away from the inductive control switch to control the power supply of the drive winch to be disconnected.

3. The bulk loading machine with slack rope limiting and dust sealing device according to claim 2, characterized in that, The baffle is connected to the fixed frame via a sliding plate. The fixed frame is provided with an elongated hole. The fixing bolt passes through the sliding plate, the fixed frame, the sliding frame and the pulley block from the outside to the inside in sequence, and then extends to the outside of the fixed frame and is fixed by a nut.

4. The bulk loading machine with slack rope limiting and dust sealing device according to claim 1, characterized in that, The fixed frame and the movable frame are provided with rectangular through holes for the steel wire rope to pass through.

5. The bulk loading machine with slack rope limiting and dust sealing device according to claim 1, characterized in that, The guide rope sealing device consists of a positioning guide pulley group, an upper flange, a dustproof sealing gasket, a lower flange, and a sealing tube connected in sequence from top to bottom. The sealing tube is located directly below the drive winch device, and its lower end is connected to the feed port. The wire rope passes through the positioning guide pulley group, the upper flange, the dustproof sealing gasket, and the lower flange in sequence from top to bottom before entering the interior of the sealing tube.

6. The bulk loading machine with slack rope limiting and dust sealing device according to claim 5, characterized in that, It also includes a single dust collector, wherein the dust collection pipe of the single dust collector is connected to a telescopic sealing cylinder, and a dust collection pipe is connected between the sealing pipe and the dust collection pipe.

7. The bulk loading machine with slack rope limiting and dust sealing device according to claim 6, characterized in that, A dust recovery conveying auger is installed below the outlet of the individual dust collector. The inlet of the dust recovery conveying auger is connected to the outlet of the individual dust collector, and the outlet of the dust recovery conveying auger is connected to the dust collection pipe and located below the dust collection pipe.

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