Blockage detection device for blanking hopper of transfer tower

Abstract

The utility model belongs to the technical field of blockage detection devices, and relates to an adapter tower blanking hopper blockage detection device, which is characterized by comprising an installation platform, a fixed support, a connecting rod, a balance tray, a limit switch, a limit shaking block, a counterweight hanging rod and a counterweight block, a balance tray is installed at the front end of the connecting rod, a limiting shaking block is installed on the balance tray, a limiting switch is installed on the side, opposite to the limiting shaking block, of the installation platform, a balance weight hanging rod is installed at the rear end of the connecting rod, and a balance weight is hung on the lower end face of the balance weight hanging rod through a hook. The material blocking degree of the transfer tower discharging hopper can be prevented from being further expanded, the design that the front panel on the balance tray is rotationally installed can achieve the purpose of self-cleaning falling materials, and the problems that labor and labor are wasted, operation is inconvenient and cleaning efficiency is low due to manual cleaning are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of blockage detection devices, in particular to a blockage detection device for a hopper under a switching tower. Background Art

[0002] From the existing transfer tower lower hopper blockage detection device, the transfer tower lower hopper blockage detection generally adopts a hanging tilt switch, an ultrasonic level switch, and a paddle-type level switch. During use, the detection mechanism of each detection switch must be placed in the lower hopper. Different types of materials and the amount of material fed by the belt conveyor will cause the throwing angle of the belt conveyor to change. The installation position of the switch is extremely difficult to determine. The installation position of the detection switch needs to be repeatedly adjusted according to the actual use situation on site. During the adjustment process, the detection switch has a high frequency of false alarms. At the same time, if the installation position of the detection switch is adjusted so that the switch cannot alarm normally when the lower hopper material is blocked, a large amount of material may overflow from the gap between the feed and discharge guide troughs and the downstream belt. In severe cases, serious consequences such as stopping the belt, collapsing the belt bracket and the lower hopper may occur, and the operating safety of the operating equipment cannot be effectively guaranteed.

[0003] Furthermore, due to the inherent characteristics of the material type, lumps of material hitting the switch, material sticking to the switch itself, and material sticking to the hopper wall can interfere with the accuracy of the switch detection, resulting in false alarms. When the detection switch frequently falsely alarms or false alarms cannot be reset, manual cleaning of the material inside the hopper or removal of the switch from the hopper is required. This lengthy repair and recovery process wastes human resources and impacts production efficiency. Utility Model Content

[0004] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a device for detecting blockage of a hopper under a transfer tower, so as to overcome the problems raised in the above-mentioned background technology.

[0005] The utility model solves the technical problem by adopting the following technical solutions:

[0006] A device for detecting blockage in a hopper under a transfer tower is characterized in that it includes a mounting platform, a fixed bracket, a connecting rod, a balancing tray, a limit switch, a limit block, a counterweight hanging rod and a counterweight block. A fixed bracket is installed on the mounting platform, a connecting rod is hinged on the fixed bracket, a balancing tray is installed on the front end of the connecting rod, a limit block is installed on the balancing tray, a limit switch is installed on the mounting platform on the opposite side of the limit block, a counterweight hanging rod is installed on the rear end of the connecting rod, and a counterweight block is hung on the lower end surface of the counterweight hanging rod through a hook.

[0007] Moreover, the balancing tray includes a bottom panel, a front panel, a rear panel, a left panel, a right panel and a rotating shaft. The left panel and the right panel are respectively fixed on the left and right ends of the upper end surface of the bottom panel. The front panel is rotatably installed on the upper front end of the left panel and the right panel through the rotating shaft. The rear panel is fixed on the rear end of the left panel and the right panel, and a connecting rod is installed in the middle of the outer wall of the rear panel.

[0008] Moreover, it also includes a counterweight stopper, which is installed on the lower part of the counterweight block on the mounting platform.

[0009] Moreover, it also includes a balancing tray stopper, which is installed on the lower mounting platform of the connecting rod. The front end of the balancing tray stopper is a slope structure, and the slope structure is the same as the slope of the balancing tray after rotating downward.

[0010] The advantages and positive effects of the utility model are:

[0011] When the transfer tower lower hopper blockage detection device is in use, the balancing tray is installed on the side hopper wall of the lower hopper just below the detection outlet. When the transfer tower lower hopper is blocked, the material will flow out of the detection outlet and fall onto the balancing tray. When the weight of the material on the balancing tray is greater than the weight of the counterweight, the balancing tray moves downward, and the limit swing block welded on the balancing tray moves downward with the balancing tray. The limit switch action corresponding to the limit swing block is fed back to the upper computer to display the corresponding blockage fault, and the upstream feeding belt conveyor stops running. On the basis of effectively detecting the blockage status of the material in the transfer tower lower hopper, the degree of blockage of the material in the transfer tower lower hopper can be prevented from further expansion.

[0012] Furthermore, the utility model can realize the purpose of self-cleaning of dropped materials by rotatably mounting the front panel on the balancing tray, thereby avoiding the problems of laborious and inconvenient operation and low cleaning efficiency caused by manual cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural diagram of the utility model;

[0014] Figure 2 This is a structural diagram of the balancing tray of the utility model;

[0015] Figure 3 This is a structural diagram of the utility model installed on site.

[0016] Description of Reference Numerals

[0017] 1-Balance tray, 1-1-front panel, 1-2-rear panel, 1-3-left panel, 1-4-right panel, 1-5-bottom panel, 2-connecting rod, 3-hinge shaft, 4-counterweight hanging rod, 5-hook, 6-counterweight block, 7-counterweight stop, 8-fixed bracket, 9-limit switch, 10-limit swing block, 11-rotating shaft, 12-balance tray stop, 13-installation platform, 14-transfer tower under hopper, 15-detection discharge port, 16-material. DETAILED DESCRIPTION

[0018] The following is a further description of the embodiments of the present invention with reference to the accompanying drawings:

[0019] A device for detecting blockage of a hopper under a transfer tower, the innovation of which lies in: comprising a mounting platform 13, a fixed bracket 8, a connecting rod 2, a balancing tray 1, a limit switch 9, a limit swing block 10, a counterweight hanging rod 4 and a counterweight block 6; a fixed bracket is mounted on the mounting platform; in this embodiment, the fixed bracket is made of 304 stainless steel and adopts an arch support design to ensure the stability of the fixed bracket; the two legs are welded to the mounting platform respectively; rotatable rotating bearings are respectively mounted on both sides of the top of the fixed bracket; the centers of the two rotating bearings are connected by a hinged shaft; a connecting rod is hinged on the fixed bracket through the cooperation of the hinged shaft 3 and the bearing; a balancing tray is mounted at the front end of the connecting rod; a limit swing block is mounted on the balancing tray; a limit switch is mounted on the mounting platform on the opposite side of the limit swing block; a stainless steel counterweight hanging rod is mounted at the rear end of the connecting rod; a counterweight block is hung on the lower end face of the counterweight hanging rod by a hook 5; in this embodiment, three counterweight blocks are set.

[0020] In this embodiment, the limit switch is a proximity limit switch, which is mounted on a limit mounting bracket corresponding to the limit block. The limit switch is actuated by the limit block, that is, when the limit block fails to reach the limit switch, the limit switch feedback device generates an alarm signal.

[0021] The balancing tray is installed just below the detection outlet 15 on the side hopper wall of the hopper 14 under the transfer tower. When the hopper 16 under the transfer tower is blocked, the material will flow out of the detection outlet and fall onto the balancing tray. When the weight of the material on the balancing tray is greater than the weight of the counterweight, the balancing tray moves downward, and the limit swing block welded on the balancing tray moves downward with the balancing tray. The limit switch action corresponding to the limit swing block is fed back to the upper computer to display the corresponding blockage fault, and the upstream feeding belt conveyor stops running. On the basis of effectively detecting the blockage status of the material in the hopper under the transfer tower, the degree of blockage of the material in the hopper under the transfer tower can be prevented from further expansion.

[0022] In this embodiment, the balancing tray is made of 304 stainless steel. The balancing tray is a trough-type tray with four sides closed, including a bottom panel, a front panel, a rear panel, a left panel, a right panel and a rotating shaft 11. The left panel and the right panel are welded to the left and right ends of the upper end surface of the bottom panel respectively. The front panel is rotatably installed on the upper front end of the left panel and the right panel through the rotating shaft. The rear panel is welded to the rear ends of the left panel and the right panel, and a connecting rod is welded to the middle of the outer wall of the rear panel.

[0023] When too much material accumulates in the balancing tray, the balancing tray will move downward. During the downward movement of the balancing tray, the front panel will be pushed open by the material to realize the automatic cleaning operation of the material. After the automatic cleaning is completed, the balancing tray will automatically return to its normal position under the leverage of the counterweight block to realize the automatic reset function of the detection device.

[0024] The device also includes a counterweight stop 7, which is mounted below the counterweight on the mounting platform. One end of the stop is welded to the mounting platform, and the other end is located directly below the counterweight's travel. This prevents the balance tray from moving upward beyond its normal operating position due to excessive weight, which could cause a false alarm.

[0025] It also includes a balancing tray stopper 12, which is installed on the lower mounting platform of the connecting rod. The front end of the balancing tray stopper is a slope structure, and the slope of the slope structure is the same as that of the balancing tray after rotating downward.

[0026] The balancing pallet stop is welded and fixed on the mounting platform, and its inclined surface corresponds to the downward movement trajectory of the balancing pallet. When the balancing pallet moves downward to the balancing pallet stop, the bottom panel of the balancing pallet will collide with the inclined surface of the balancing pallet stop. The vibration generated by the collision will cause the piled materials in the balancing pallet to fall automatically, thereby realizing the function of automatically cleaning the accumulated materials in the pallet.

[0027] As the balance tray moves downward, its front panel automatically opens due to gravity, and the material inside the balance tray automatically falls due to its tilt. During this process, if the balance tray continues to move downward until it collides with the balance tray stop, the vibration generated by the collision can cause a large amount of material inside the balance tray to fall, thereby automatically clearing the accumulated material inside the balance tray. After the accumulated material on the balance tray is automatically cleared, the counterweight block, under the action of the lever, automatically returns the balance tray to its normal position, realizing the automatic reset function of the detection device.

[0028] Although the embodiments and drawings of the present invention are disclosed for illustrative purposes, those skilled in the art will understand that various replacements, changes and modifications are possible without departing from the spirit and scope of the present invention and the appended claims. Therefore, the scope of the present invention is not limited to the contents disclosed in the embodiments and drawings.

Claims

1. A device for detecting blockage of a hopper under a transfer tower, characterized in that: It includes an installation platform, a fixed bracket, a connecting rod, a balancing tray, a limit switch, a limit block, a counterweight hanging rod and a counterweight block. The fixed bracket is installed on the installation platform, the connecting rod is hinged on the fixed bracket, the balancing tray is installed on the front end of the connecting rod, the limit block is installed on the balancing tray, the limit switch is installed on the installation platform on the opposite side of the limit block, the counterweight hanging rod is installed on the rear end of the connecting rod, and the counterweight block is hung on the lower end surface of the counterweight hanging rod through a hook.

2. The device for detecting blockage of a hopper under a transfer tower according to claim 1, characterized in that: The balancing tray includes a bottom panel, a front panel, a rear panel, a left panel, a right panel and a rotating shaft. The left panel and the right panel are fixedly mounted on the left and right ends of the upper end surface of the bottom panel respectively. The front panel is rotatably mounted on the upper front end of the left panel and the right panel through the rotating shaft. The rear panel is fixed on the rear end of the left panel and the right panel, and a connecting rod is installed in the middle of the outer wall of the rear panel.

3. The device for detecting blockage of a hopper under a transfer tower according to claim 1, characterized in that: It also includes a counterweight stopper, which is installed on the lower part of the counterweight block on the installation platform.

4. The device for detecting blockage of a hopper under a transfer tower according to claim 1, characterized in that: It also includes a balancing tray stopper, which is installed on the lower mounting platform of the connecting rod. The front end of the balancing tray stopper is a slope structure, and the slope structure is the same as the slope of the balancing tray after it rotates downward.

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