Coal blocking device of coal mining machine

Abstract

The utility model discloses a coal retaining device of a coal mining machine, which belongs to the technical field of coal mining machines and comprises a first support and a second support, a first retaining plate is hinged to one end of the first support, a second retaining plate is slidably arranged in the first retaining plate, and the second retaining plate is hinged to the second support. A distance adjusting mechanism is arranged between the first support and the second support and comprises first screw rods located on the opposite side faces of the first support and the second support, a threaded sleeve is in threaded connection between the first screw rods, and the first screw rods can rotate by rotating the threaded sleeve to adjust the distance between the first support and the second support. When the device is used, the first screw rods on the two sides can push the first support and the second support on the two sides to move correspondingly, the distance between the first support and the second support can be adjusted according to the specifications of different coal mining machines, meanwhile, the second baffle slides out of or retracts into the first baffle to be unfolded or folded, and the applicability of the device is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to coal winning machine technical field, specifically point to a coal winning machine's coal blocking device. BACKGROUND

[0002] In the process of mining by the coal winning machine, due to the geological conditions in the coal mine, the coal is prone to falling, so the coal blocking device is needed to block, because the general coal blocking device does not have the function of adjusting, thus leading to extremely inconvenient when using, affecting work efficiency.

[0003] Such as the patent publication No. CN217783486U discloses "a coal winning machine's coal blocking device", it is fixed in the coal winning machine with the fixed block and connects the plate, then rotates the handle and drives the first threaded rod to rotate, the rotation of the first threaded rod drives the first moving block to move, thereby driving the connecting block to move, the movement of the connecting block drives the connecting rod to move, thereby driving the baffle to move, meet the angle adjustment effect of the baffle. But the above structure when using, need through the connecting plate and fix the whole device on the coal winning machine, however, the specifications of the coal winning machine are different, the coal blocking plate of the above structure cannot adapt to different specifications of the coal winning machine, and the applicability is low. SUMMARY

[0004] The technical problem to be solved by the utility model is that the prior art cannot be adjusted according to different specifications of the coal winning machine, and the applicability is low.

[0005] To solve the above technical problems, the technical scheme provided by the utility model is as follows: a coal winning machine's coal blocking device, including the first support, the second support of symmetrical arrangement, the first support one end is hinged with first baffle, the first baffle is slidably arranged with second baffle, the second baffle is hinged with the second support, the first support is equipped with the angle adjustment mechanism of first baffle, the second support is equipped with the limiting mechanism, the first support, second support between is equipped with the interval adjustment mechanism, the interval adjustment mechanism includes the first screw rod arranged on the opposite side of the first support, second support, the first screw rod is screw connected with the threaded sleeve.

[0006] As a further scheme of the utility model, the angle adjustment mechanism includes the groove arranged on the first support, the groove is equipped with the driver, the output end of the driver is equipped with the second screw rod, the second screw rod is screw connected with the threaded block, the threaded block is hingedly provided with the first support rod on the upper surface, the other end of the first support rod is rotatably connected with the bottom surface of the first baffle.

[0007] As a further scheme of the utility model, the limiting mechanism comprises a movable groove provided on the second support, a limiting rod is arranged in the movable groove, a sliding block is slidably arranged on the limiting rod, a second supporting rod is hingedly arranged on the sliding block, and the other end of the second supporting rod is rotatably connected with the bottom surface of the second baffle.

[0008] As a further scheme of the utility model, the outer surface of the threaded sleeve is covered with an anti-skid rubber pad.

[0009] Compared with the prior art, the utility model has the advantages that by rotating the threaded sleeve, the first screw rods on both sides respectively push the first support and the second support on both sides to move, the interval between them can be adjusted according to the specifications of different coal mining machines, meanwhile, the second baffle slides out or retracts into the first baffle to be unfolded or folded, so that the applicability of the device is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 is a perspective view of the coal blocking device of the coal mining machine.

[0011] Figure 2 is an enlarged schematic view of the A part structure of the coal blocking device of the coal mining machine.

[0012] As shown in the drawings: 1, first support; 2, second support; 3, first baffle; 4, second baffle; 5, first screw rod; 6, threaded sleeve; 7, groove; 8, driver; 9, second screw rod; 10, threaded block; 11, first supporting rod; 12, movable groove; 13, limiting rod; 14, sliding block; 15, second supporting rod. DETAILED DESCRIPTION

[0013] The technical solutions in the embodiments of the utility model will be clearly and completely described in combination with 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 the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0014] In the description of the utility model, it should be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "connection" and the like should be understood in a broad sense, for example, "connection" can be fixed connection, can also be detachable connection, or integrally connected; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication between two elements. For those skilled in the art, the specific meanings of the above terms in the utility model can be understood according to specific circumstances.

[0015] The drawings are combinedFigure 1 A coal blocking device of a coal mining machine, comprising a first support 1 and a second support 2 arranged symmetrically, a first baffle 3 is hingedly arranged at one end of the first support 1, a second baffle 4 is slidably arranged in the first baffle 3, the second baffle 4 is hingedly arranged with the second support 2, an angle adjusting mechanism of the first baffle 3 is arranged in the first support 1, a limiting mechanism is arranged in the second support 2, a spacing adjusting mechanism is arranged between the first support 1 and the second support 2, the spacing adjusting mechanism comprises first screws 5 arranged on opposite sides of the first support 1 and the second support 2, and a threaded sleeve 6 is threadedly connected between the first screws 5, and an antiskid rubber pad is coated on the outer surface of the threaded sleeve 6, so as to facilitate the rotation of the threaded sleeve 6 by the staff.

[0016] The utility model discloses a coal blocking device of a coal mining machine Figure 1 、 Figure 2 The angle adjusting mechanism comprises a groove 7 arranged on the first support 1, a driver 8 is arranged in the groove 7, a second screw 9 is arranged on the output end of the driver 8, a threaded block 10 is threadedly connected on the second screw 9, a first support rod 11 is hingedly arranged on the upper surface of the threaded block 10, and the other end of the first support rod 11 is rotatably connected with the bottom surface of the first baffle 3.

[0017] The utility model discloses a coal blocking device of a coal mining machine Figure 1 The limiting mechanism comprises a movable groove 12 arranged on the second support 2, a limiting rod 13 is arranged in the movable groove 12, a sliding block 14 is slidably arranged on the limiting rod 13, a second support rod 15 is hingedly arranged on the sliding block 14, and the other end of the second support rod 15 is rotatably connected with the bottom surface of the second baffle 4.

[0018] In the specific implementation of the utility model, first, the threaded sleeve is rotated, the outer side of the threaded sleeve is coated with an antiskid rubber pad, and this is more convenient for the staff to operate and use, the rotation of the threaded sleeve can drive the two first screws threadedly connected with the threaded sleeve to move, the first screws respectively push the first support and the second support on the two sides to move, the spacing between the first support and the second support can be adjusted according to the specifications of different coal mining machines, at the same time, the second baffle slides out or is retracted into the first baffle to be unfolded or folded, then the first support and the second support are fixed on the coal mining machine through the fastening bolts and nuts, the driver can be started, the driver drives the second screw to rotate, the second screw drives the threaded block to move, the threaded block drives the lower end of the first support rod to move, the upper end props up the first baffle, the first baffle is lifted to a certain angle, at the same time, the sliding block moves along the limiting rod, drives the second support rod to lift the second baffle, and the angle of the second baffle is adjusted at the same time as the first baffle, so that the coal blocking effect is achieved.

[0019] The above has described the utility model and its implementation mode, which is not restrictive, and the drawings only show one of the implementation modes of the utility model, and the actual structure is not limited thereto. In summary, if a person skilled in the art is inspired thereby, without departing from the creative purpose of the utility model, similar structural modes and embodiments are not creatively designed, which should belong to the protection scope of the utility model.

Claims

1. A coal blocking device for a coal mining machine, characterized in that: The invention comprises a first bracket (1) and a second bracket (2) which are symmetrically arranged, wherein a first baffle (3) is hingedly provided at one end of the first bracket (1), a second baffle (4) is slidingly provided inside the first baffle (3), and the second baffle (4) is hingedly connected to the second bracket (2), an angle adjustment mechanism for the first baffle (3) is provided inside the first bracket (1), a limiting mechanism is provided inside the second bracket (2), a spacing adjustment mechanism is provided between the first bracket (1) and the second bracket (2), and the spacing adjustment mechanism comprises a first screw (5) provided on opposite sides of the first bracket (1) and the second bracket (2), and a threaded sleeve (6) is threadedly connected between the first screws (5).

2. The coal blocking device of a coal mining machine according to claim 1, characterized in that: The angle adjustment mechanism comprises a groove (7) provided on the first bracket (1), a driver (8) being provided in the groove (7), a second screw rod (9) being provided at the output end of the driver (8), a threaded block (10) being threadedly connected to the second screw rod (9), a first support rod (11) being hingedly provided on the threaded block (10), and the other end of the first support rod (11) being rotatably connected to the bottom surface of the first baffle (3).

3. The coal blocking device of a coal mining machine according to claim 1, characterized in that: The limiting mechanism comprises a movable groove (12) provided on the second bracket (2), a limiting rod (13) being provided in the movable groove (12), a slider (14) being slidably provided on the limiting rod (13), a second support rod (15) being hingedly provided on the slider (14), and the other end of the second support rod (15) being rotatably connected to the bottom surface of the second baffle (4).

4. The coal blocking device of a coal mining machine according to claim 1, characterized in that: The outer surface of the threaded sleeve (6) is covered with an anti-slip rubber pad.

Images