CN104670786A - Chute anti-blocking device - Google Patents

Abstract

The invention discloses a chute anti-blocking device. The chute anti-blocking device comprises a protection gate, rotating mechanisms and switching mechanisms, wherein the protection gate is installed on the lower bottom plate of the bottom plate of a chute through the rotating mechanisms and the switching mechanisms, the rotating mechanisms are installed on one side, close to a feed inlet, of the protection gate, each rotating mechanism comprises a rotating shaft, a fixed support, a follow-up rotating support and a strain detection piece, the switching mechanisms are installed on one side, close to a discharge outlet, of the protection gate, each switching mechanism comprises a fixed rack, a front support frame, a rear support frame, a spring pin and an electromagnet, and the fixed support, the rotating shaft and the follow-up rotating support restrain the protection gate to rotate around the center of the rotating shaft. Since the chute anti-blocking device disclosed by the invention is arranged outside the chute, the anti-blocking device is prevented from being deformed due to impact of materials and the trigger accuracy of the anti-blocking device is further prevented from being influenced; in addition, since the key movement pairs of the anti-blocking device disclosed by the invention are not in direct contact with the materials, the materials which easily become dust substantially do not influence the sensitivity of the key movement pairs and the operation smoothness of the anti-blocking device is guaranteed.

Description

A chute anti-clogging device

technical field

The invention relates to an anti-clogging device, in particular to a chute anti-clogging device.

Background technique

In recent years, in the fast loading system, the swing telescopic loading chute is often used to load the material into the corresponding position of the carriage. However, the large ore formed due to imperfect crushing often blocks the chute, causing the materials to be unable to be unloaded smoothly and affecting the loading efficiency.

At present, most of the chute blockage protection devices are provided with lever type protection devices on the side of the main channel of the chute. When the channel of the chute is blocked, the material enters the protective device on the side from the main channel, and the limit switch is triggered by squeezing the lever, and then the signal is sent to the automatic control system to alarm the blockage of the chute.

However, this device will inevitably be continuously impacted by materials during each use, especially when loading hard materials, the impact will cause deformation of the lever and affect the triggering accuracy of the protection device. In addition, the lever shaft is the key kinematic pair of this device, and the material dust and particles during the transmission process will inevitably enter the protective device, which will directly affect the rotation sensitivity and response rate, so this device is easy to dust. materials are also more sensitive.

Contents of the invention

Aiming at the above-mentioned problems in the prior art, the present invention provides a chute anti-clogging device, which can avoid the reduction of triggering accuracy caused by the impact of materials, and prevent the rotation sensitivity of the device from being affected by dusty materials.

In order to achieve the above object, the technical solution adopted by the present invention is: a chute anti-clogging device, including a protective gate, and also includes a rotating mechanism for the protection gate to rotate and a switch mechanism for the protection gate switch, and the protection gate passes through the rotation mechanism and The switch mechanism is installed on the lower bottom plate of the chute, and the rotating mechanism is installed on the side of the protective gate close to the material inlet. The rotating mechanism includes a rotating shaft, a fixed bracket, a rotating bracket and a strain detection piece. The fixed bracket is connected to the bottom plate of the chute, and the rotating bracket It is connected with the protective gate, one end of the rotating shaft is fixedly connected with the fixed bracket, and the other end is rotationally connected with the rotating bracket, the strain detection sheet is attached to the shaft section between the fixed bracket and the rotating bracket, and its sensing direction coincides with the axis of the rotating shaft; the switch The mechanism is installed on the side of the protective gate close to the discharge port. The switch mechanism includes a fixed frame, a front support frame, a rear support frame, a spring pin and an electromagnet. The fixed frame is fixed on the bottom plate of the chute. All three irons are fixed on the protective gate. The spring pin is composed of a spring and a pin body. The pin body passes through the front support frame, the rear support frame and the fixed frame. Outside the body, the electromagnet is located at the end of the spring pin.

Further, the centers of rotation of the fixed bracket, the rotatable bracket and the rotating shaft are collinear.

Further, the centerlines of the spring pin, the front support frame, the rear support frame and the fixed frame are coincident.

Further, there are two sets of rotating mechanisms and switching mechanisms respectively, the two sets of rotating mechanisms are symmetrically installed on the side of the protective gate close to the material inlet, and the two sets of switching mechanisms are symmetrically installed on the side of the protective gate close to the material outlet.

Compared with the prior art, the present invention is arranged outside the chute, which avoids the deformation caused by the impact of the material on the present invention, thereby affecting the triggering accuracy of the protective device; in addition, none of the key kinematic pairs of the present invention is in direct contact with the material, so the material is easy to dust Basically, it will not affect the sensitivity of key kinematic pairs, thus ensuring smooth operation of the present invention.

Description of drawings

Fig. 1 is the top view of the present invention;

Fig. 2 is the front view of the present invention;

In the figure: 000, chute bottom plate, 001, protective gate;

101, rotating shaft, 103, fixed bracket, 105, rotating bracket, 107, strain detection piece;

201, fixed frame, 203, front support frame, 205, rear support frame, 207, spring pin, 209, electromagnet;

207-1, spring, 207-2, pin body.

Detailed ways

The present invention will be further described below in conjunction with accompanying drawing.

As shown in Figures 1 and 2, the chute anti-clogging device disclosed in the present invention includes a protective gate 001, a rotating mechanism for rotating the protective gate 001 and a switch mechanism for switching the protective gate 001,

The protective gate 001 is installed on the bottom plate of the chute bottom plate 000 through the rotating mechanism and the switch mechanism,

The rotating mechanism is installed on the side of the protective gate 001 close to the material inlet. The rotating mechanism includes a rotating shaft 101, a fixed bracket 103, a rotating bracket 105 and a strain detection piece 107. The gate 001 is connected, one end of the rotating shaft 101 is fixedly connected with the fixed bracket 103, and the other end is rotatably connected with the rotating bracket 105 to form a rotating pair.

The fixed bracket 103, the rotating shaft 101 and the rotating bracket 105 constrain the protective gate 001 to rotate around the center of the rotating shaft 101;

The strain detection piece 107 is pasted on the shaft section of the rotating shaft 101 between the fixed bracket 103 and the rotating bracket 105, and its sensing direction coincides with the axis of the rotating shaft 101, so as to detect the dynamic strain of the protective gate 001;

The switch mechanism is installed on the side of the protective gate 001 close to the discharge port. The switch mechanism includes a fixed frame 201, a front support frame 203, a rear support frame 205, a spring pin 207 and an electromagnet 209. The fixed frame 201 is fixed on the chute bottom plate 000. The front support frame 203, the rear support frame 205, and the electromagnet 209 are all fixed on the protective gate 001,

Spring pin 207 is made up of spring 207-1 and pin body 207-2, and pin body 207-2 passes front support frame 203, rear support frame 205, fixed frame 201, and spring pin 207 is constrained on front support frame 203 and rear support Between the frames 205, the spring 27-1 is set outside the pin body 207-2 between the front support frame 203 and the rear support frame 205. Under the action of the spring 27-1, the side fulcrum of the spring pin 207 and the support The frame 203 contacts, and the electromagnet 209 is located at the end of the spring pin 207. When electrified, it can attract the pin body 207-2 to overcome the elastic force of the spring 207-1 and move to the opposite end along its center line.

Concrete work process of the present invention is as follows:

The chute anti-blocking device disclosed in the present invention is arranged on the lower bottom plate of the chute bottom plate 000 . When the channel of the chute is smooth and unobstructed, the strain detection piece 107 will detect a relatively small dynamic strain due to the material continuously passing through the protective gate 001; when the chute is blocked, the strain detection piece 107 can detect a small dynamic strain due to the accumulation of materials large static strain, thereby capturing the blockage information. At this time, the strain detection sheet 107 transmits a signal to the automatic control system. Under the control of the automatic control system, the electromagnet 209 is energized to attract the spring pin 207 to move to the opposite end. Once the pin When the body 207-2 leaves the fixed frame 201 and loses the binding force, the protective gate 001 will rotate around the rotating shaft 101 to realize the smooth unloading of materials.

In order to ensure that the protective gate 001 is opened more smoothly, the center of rotation of the fixed support 103, the rotating support 105 and the rotating shaft 101 are collinear;

Considering the harsh working environment of the chute anti-blocking device, in order to improve the service life and operation accuracy of the present invention, two sets of rotating mechanisms and switching mechanisms are respectively provided, and the two sets of rotating mechanisms are symmetrically installed on the side of the protective gate 001 close to the material inlet , two sets of switching mechanisms are symmetrically installed on the side of the protective gate 001 close to the discharge port.

Claims (4)

1. An anti-clogging device for a chute, comprising a protective gate (001), characterized in that it also includes a rotating mechanism for rotating the protective gate (001) and a switch mechanism for switching the protective gate (001), The protective gate (001) is installed on the bottom plate of the chute bottom plate (000) through the rotating mechanism and the switching mechanism. The rotating mechanism is installed on the side of the protective gate (001) close to the material inlet. The rotating mechanism includes a rotating shaft (101), a fixed bracket (103), a rotating bracket (105), a strain detection piece (107), and a fixed bracket (103) It is connected with the bottom plate of the chute (000), the rotating bracket (105) is connected with the protective gate (001), one end of the rotating shaft (101) is fixedly connected with the fixed bracket (103), and the other end is rotationally connected with the rotating bracket (105). The strain detection piece (107) is pasted on the shaft section of the rotating shaft (101) between the fixed bracket (103) and the rotating bracket (105), and its sensing direction coincides with the axis of the rotating shaft (101); The switch mechanism is installed on the side of the protective gate (001) close to the discharge port. The switch mechanism includes a fixed frame (201), a front support frame (203), a rear support frame (205), a spring pin (207) and an electromagnet (209 ), the fixing frame (201) is fixed on the bottom plate of the chute (000), the front support frame (203), the rear support frame (205), and the electromagnet (209) are all fixed on the protective gate (001), The spring pin (207) is composed of a spring (27-1) and a pin body (207-2), and the pin body (207-2) passes through the front support frame (203), the rear support frame (205), and the fixed frame (201) , the spring (27-1) is sleeved outside the pin body (207-2) between the front support frame (203) and the rear support frame (205), and the electromagnet (209) is located at the end of the spring pin (207). 2. The chute anti-clogging device according to claim 1, characterized in that, the center of rotation of the fixed bracket (103), the rotating bracket (105) and the rotating shaft (101) are collinear. 3. A chute anti-blocking device according to claim 1, characterized in that, the center of the spring pin (207), front support frame (203), rear support frame (205), and fixed frame (201) Lines coincide. 4. The chute anti-clogging device according to claim 2 or 3, characterized in that two sets of the rotating mechanism and the switching mechanism are respectively provided, and the two sets of rotating mechanisms are symmetrically installed on the protective gate (001) close to the entrance. On one side of the discharge port, two sets of switching mechanisms are symmetrically installed on the side of the protective gate (001) close to the discharge port.