Deviation rectifying device for extending belt frame of coal mine driving working face

Abstract

The utility model belongs to the technical field of coal mine tunneling, and solves the problem that a matched connecting structure is not applicable due to inconsistent extending distances when a belt conveyor is extended. According to the deviation rectifying device for the extending belt frame of the coal mine driving working face, a tail buffer frame accessory is connected to the end, close to an H frame, of a tail buffer frame of a belt conveyor, and the tail buffer frame accessory can achieve angle adjustment relative to the tail buffer frame through a universal joint; the H-shaped frame end fitting is connected to the H-shaped frame and can slide and be locked in the height direction of the H-shaped frame; adjusting holes are formed in the adjustable connecting rod at intervals in the length direction of the adjustable connecting rod, and the adjustable connecting rod is horizontally connected into the groove-shaped structures on the tail buffering frame accessory and the H-shaped frame end accessory and can be locked between the tail buffering frame accessory and the H-shaped frame end accessory. The device is simple and compact in structure, and the belt rack can be extended at any distance within 0-3 m through cooperation of the tail buffer frame accessory, the H frame end accessory, the adjustable connecting rod and the universal joint.

Description

Technical Field

[0001] The utility model belongs to the technical field of coal mine excavation, and in particular relates to a deviation correcting device for an extended belt frame on a coal mine excavation working face. Background Art

[0002] The middle H-frames of the belt conveyor on the excavation working face are equidistant at 3 meters, so the size of the supporting connecting structure is fixed in advance; but during the production process, it is impossible for the distance to be 3 meters every time when the middle frame is extended into the machine. At this time, the supporting connecting structure is not applicable, resulting in a section of space between the tail buffer frame and the H-frame where there is no pedestrian safety protection during the operation of the belt. When the length of the belt is less than 3 meters, there is no corresponding effective support, resulting in belt jumping and coal scattering. Some coal blocks are transported back to the tail of the machine by the bottom belt, which can easily cause safety accidents such as roller blockage, friction heating, and belt deviation. Utility Model Content

[0003] In order to solve at least one of the above technical problems existing in the prior art, the utility model provides a deviation correcting device for an extended belt frame of a coal mine excavation working face.

[0004] The utility model is implemented by the following technical scheme: a deviation correction device for an extended belt frame on a coal mine excavation working face, comprising two sets of connection mechanisms which are symmetrical with respect to the center line of an H frame, wherein the connection mechanisms comprise a tail buffer frame accessory, an H frame end accessory and an adjustable connecting rod connected therebetween; wherein the tail buffer frame accessory is connected to one end of the tail buffer frame of a belt conveyor close to the H frame, and the tail buffer frame accessory can achieve angle adjustment relative to the tail buffer frame through a universal joint; the H frame end accessory is connected to the H frame, and can slide and lock along the height direction of the H frame; the adjustable connecting rod is provided with adjustment holes at intervals along its length direction, and the adjustable connecting rod is horizontally connected to the groove structures on the tail buffer frame accessory and the H frame end accessory and can be locked between the two.

[0005] Preferably, the tail buffer frame accessory includes a tail buffer frame connecting groove and a connecting rod locating groove, the notch of the tail buffer frame connecting groove faces downward and is fixedly connected to the upper end of the tail buffer frame by a transverse connecting pin, the connecting rod locating groove is connected to the upper end of the tail buffer frame connecting groove by a universal joint, and the connecting rod locating groove is provided with a pin hole that cooperates with the adjustment hole on the adjustable connecting rod, and the two can be connected and locked by a pin shaft.

[0006] Preferably, the H-frame end fittings include an H-frame connecting groove and a connecting rod slot, the notch of the H-frame connecting groove faces the inner side of the H-frame and is locked on the H-frame by two clamping bolts, the H-frame connecting groove has a threaded hole that matches the thread of the clamping bolt, the connecting rod slot is fixedly connected to an end face of the H-frame connecting groove away from the notch, the notch of the connecting rod slot faces upward and a wing plate extends inward from the upper end of one side.

[0007] Preferably, the H-frame end fitting further comprises a clip, and a clip positioning hole is provided on one side of the H-frame connecting groove close to the notch, and the clip can be inserted into the clip positioning hole and attached tightly to the H-frame.

[0008] Preferably, the buckle is connected to the side end surface of the H-frame connecting groove through a connecting chain, and the buckle is a wedge-shaped structure.

[0009] Compared with the prior art, the beneficial effects of the utility model are:

[0010] The device has a simple and compact structure. Through the cooperation between the tail buffer frame accessories, H-frame end accessories, adjustable connecting rods and universal joints, the extended belt frame can be extended at any distance within 0m-3m, and the front and rear distance, height difference and left and right angles can be adjusted. It can not only achieve pedestrian safety protection, but also solve the hidden dangers of belt jumping and coal spilling back to the tail of the machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0012] Figure 1 Schematic diagram of the overall installation structure of this embodiment;

[0013] Figure 2 Schematic diagram of the installation position of the H frame end fittings of this embodiment;

[0014] Figure 3 is a schematic structural diagram of the tail buffer frame accessory of this embodiment;

[0015] Figure 4 Schematic diagram of the structure of the H frame end fittings of this embodiment.

[0016] In the figure: 1.1- connecting slot of tail buffer frame; 1.2- connecting rod positioning slot; 2.1- connecting slot of H frame; 2.11- threaded hole; 2.12- positioning hole of clip; 2.2- connecting rod slot; 2.21- wing plate; 2.3- clip; 2.4- connecting chain; 3- adjustable connecting rod; 4- universal joint; 5- tail buffer frame; 6- H frame. DETAILED DESCRIPTION

[0017] Combined with the drawings in the embodiments of the utility model, the technical solutions in the embodiments of the utility model are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other implementation methods obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification so that people familiar with this technology can understand and read them. They are not used to limit the conditions under which the present invention can be implemented, so they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention. It should be noted that in this specification, relational terms such as first and second are only used to distinguish one entity from other entities, and do not necessarily require or imply any actual relationship or order between these entities.

[0019] The utility model provides an embodiment:

[0020] like Figures 1 to 4 As shown, a deviation correction device for an extended belt frame on a coal mine excavation working face includes two sets of connection mechanisms that are symmetrical with respect to the center line of the H frame, and the connection mechanisms include a tail buffer frame accessory, an H frame end accessory, and an adjustable connecting rod 3 connected therebetween;

[0021] The tail buffer frame accessory is connected to one end of the tail buffer frame of the belt conveyor close to the H frame, and the tail buffer frame accessory can achieve angle adjustment relative to the tail buffer frame through the universal joint 4; the H frame end accessory is connected to the H frame, and can slide and lock along the height direction of the H frame; the adjustable connecting rod 3 is provided with adjustment holes at intervals along its length direction, and the adjustable connecting rod 3 is horizontally connected to the groove structure on the tail buffer frame accessory and the H frame end accessory and can be locked between the two.

[0022] In this embodiment, the tail buffer frame accessories include a tail buffer frame connecting groove 1.1 and a connecting rod positioning groove 1.2. The groove of the tail buffer frame connecting groove 1.1 faces downward and is fixedly connected to the upper end of the tail buffer frame by a transverse connecting pin. The connecting rod positioning groove 1.2 is connected to the upper end of the tail buffer frame connecting groove 1.1 through a universal joint 4. The connecting rod positioning groove 1.2 is provided with a pin hole that cooperates with the adjustment hole on the adjustable connecting rod 3, and the two can be connected and locked by a pin shaft.

[0023] The H-frame end fittings include an H-frame connecting groove 2.1 and a connecting rod slot 2.2. The notch of the H-frame connecting groove 2.1 faces the inner side of the H-frame and is locked on the H-frame by two clamping bolts. The H-frame connecting groove 2.1 has a threaded hole 2.11 that matches the thread of the clamping bolt. The connecting rod slot 2.2 is fixedly connected to an end face of the H-frame connecting groove 2.1 away from the notch. The notch of the connecting rod slot 2.2 faces upward and a wing plate 2.21 extends inward from the upper end of one side.

[0024] The H-frame end fittings also include a clip 2.3. A clip positioning hole 2.12 is provided on one side of the H-frame connection slot 2.1 near the slot. The clip 2.3 can be inserted into the clip positioning hole 2.12 and fit tightly against the H-frame, further increasing the stability of the device. The clip 2.3 is connected to the side end surface of the H-frame connection slot 2.1 through a connecting chain, and the clip 2.3 is a wedge-shaped structure.

[0025] Specific steps:

[0026] When extending the belt tail, loosen the clamping bolt on the H frame connection slot on the H frame accessory to separate the two; at the same time, remove the connecting pin on the tail buffer frame connection slot 1.1 on the tail buffer frame to separate the two;

[0027] Perform the extension operation. After the tail of the belt conveyor is extended into place, connect the tail buffer frame connecting groove 1.1 to the tail buffer frame, select a suitable position to install the H frame accessories on the new H frame, and adjust the height of the H frame connecting groove and universal joint 4 according to the distance between the H frame and the tail buffer frame. Determine the position of the adjustable connecting rod and lock it to keep the adjustable connecting rod horizontal.

[0028] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model shall be based on the protection scope of the claims.

Claims

1. A coal mine excavation working face extension belt frame correction device, characterized in that: It comprises two sets of connecting mechanisms which are symmetrical with respect to the center line of the H frame, and the connecting mechanisms include a tail buffer frame accessory, an H frame end accessory and an adjustable connecting rod (3) connected therebetween; The tail buffer frame accessory is connected to one end of the tail buffer frame of the belt conveyor close to the H frame, and the tail buffer frame accessory can be adjusted relative to the tail buffer frame through a universal joint (4); the H frame end accessory is connected to the H frame and can slide and lock along the height direction of the H frame; the adjustable connecting rod (3) is provided with adjustment holes at intervals along its length direction, and the adjustable connecting rod (3) is horizontally connected to the groove structure on the tail buffer frame accessory and the H frame end accessory and can be locked between the two.

2. The coal mine excavation working face extension belt frame deviation correction device according to claim 1 is characterized in that: The tail buffer frame accessory comprises a tail buffer frame connecting groove (1.1) and a connecting rod positioning groove (1.2); the notch of the tail buffer frame connecting groove (1.1) faces downward and is fixedly connected to the upper end of the tail buffer frame via a transverse connecting pin; the connecting rod positioning groove (1.2) is connected to the upper end of the tail buffer frame connecting groove (1.1) via a universal joint (4); a pin hole is provided on the connecting rod positioning groove (1.2) and is matched with an adjustment hole on the adjustable connecting rod (3); and the two can be connected and locked via a pin shaft.

3. The coal mine excavation working face extension belt frame deviation correction device according to claim 2 is characterized in that: The H frame end fitting comprises an H frame connecting groove (2.1) and a connecting rod clamping groove (2.2); the notch of the H frame connecting groove (2.1) faces the inner side of the H frame and is locked on the H frame by two clamping bolts; the H frame connecting groove (2.1) has a threaded hole (2.11) that matches the thread of the clamping bolt; the connecting rod clamping groove (2.2) is fixedly connected to an end face of the H frame connecting groove (2.1) away from the notch; the notch of the connecting rod clamping groove (2.2) faces upward and a wing plate (2.21) extends inward from an upper end on one side.

4. The coal mine excavation working face extension belt frame deviation correction device according to claim 3 is characterized in that: The H frame end fitting also includes a buckle (2.3), and a buckle positioning hole (2.12) is provided on one side of the H frame connection groove (2.1) close to the groove. The buckle (2.3) can be inserted into the buckle positioning hole (2.12) and closely attached to the H frame.

5. The coal mine excavation working face extension belt frame deviation correction device according to claim 4 is characterized in that: The buckle (2.3) is connected to the side end surface of the H-frame connection groove (2.1) through a connection chain (2.4), and the buckle (2.3) is a wedge-shaped structure.

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