Coal mining machine supporting device for coal mine

Abstract

The utility model is suitable for the technical field of coal mining machine supporting, and provides a coal mining machine supporting device for a coal mine. The bearing column is embedded in the center of the top of the supporting column; the movable plate is welded on the outer side wall of the bearing column; the inserting rod is screwed in the center of the bottom of the bearing column through a thread; the supporting frame is fixed on the outer side wall of the supporting column through a bolt; the hydraulic cylinder is fixed at the bottom of the support frame through a bolt; the through groove is formed in the position, close to the lower portion of the supporting frame, of the outer side wall of the supporting column; the fixing plate is welded to the position, close to the bottom end, of the bottom of the supporting column; the supporting plate is unfolded and the inserting rod is inserted into the soil layer by utilizing the gravity of the coal mining machine, so that the supporting plate is fully contacted with the ground after being unfolded, the contact area between the supporting device and the ground is increased, the weight of the coal mining machine borne by the local soil layer is shared, and the supporting device is prevented from extruding and sinking the soil; inclination of the coal mining machine is avoided; and the working stability is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of coal mining machine supports, in particular to a coal mining machine support device for coal mines. Background Art

[0002] Coal mining machine is one of the important equipment to realize the mechanization and modernization of coal mine production. Mechanized coal mining can reduce physical labor, improve safety, and achieve the goals of high output, high efficiency and low consumption.

[0003] When the coal shearer is mining, the bottom of the coal shearer needs to be supported to ensure the stability of the coal shearer during operation. Due to the heavy weight of the coal shearer and the vibration during operation, the soil layer at the bottom of the coal shearer will gradually sink, causing the coal shearer to tilt and the coal shearer to be unstable, resulting in poor support effect of the coal shearer support device.

[0004] Therefore, a supporting device for a coal mining machine is proposed. Utility Model Content

[0005] The utility model provides a supporting device for a coal mining machine, aiming to solve the above-mentioned problem.

[0006] The utility model is implemented as follows: a coal mining machine support device for a coal mine, comprising: a support column; a load-bearing column embedded in the central position of the top of the support column; a movable plate welded to the outer wall of the load-bearing column; and an insertion rod screwed at the central position of the bottom of the load-bearing column by a thread; a support frame fixed to the outer wall of the support column by bolts; a hydraulic cylinder fixed to the bottom of the support frame by bolts; a through groove opened in the outer wall of the support column near the bottom of the support frame; a fixed plate welded to the bottom end of the support column; a support plate rotated on the outer wall of the fixed plate; a movable frame sliding on the top of the support plate; a linkage plate rotated on the inner wall of the movable frame, and the linkage plate and the movable plate are rotatably connected.

[0007] Preferably, a limiting through hole matching the load-bearing column is provided inside the support column, and the through groove and the limiting through hole are connected.

[0008] Preferably, the top of the load-bearing column and the output end of the hydraulic cylinder are fixedly connected to the bottom of the coal mining machine by bolts.

[0009] Preferably, there are eight movable plates and eight fixed plates in total, and the eight movable plates and eight fixed plates are symmetrically arranged in groups of two on the outer side walls of the load-bearing column and the support column respectively.

[0010] Preferably, the bottom of the movable frame is provided with a slider having a T-shaped cross section required for sliding connection with the supporting plate.

[0011] Preferably, a conical head is provided at the bottom of the insertion rod, and the insertion rod can pass through the bottom of the support column.

[0012] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0013] The shearer's own gravity is used to unfold the support plate and insert the rod into the soil layer. This not only allows the support plate to fully contact the ground after unfolding, increases the contact area between the support device and the ground, and shares the weight of the shearer borne by the local soil layer, thereby preventing the support device from squeezing the soil and sinking it, and preventing the shearer from tilting to ensure stability during operation. The support device is positioned by inserting the rod into the soil layer, avoiding the support device from being displaced due to the vibration of the shearer during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the utility model;

[0015] Figure 2 This is a schematic diagram of the load-bearing column structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the support frame structure of the utility model;

[0017] Figure 4 This utility model Figure 1 A in the enlarged view.

[0018] In the figure: 1. Support column; 2. Load-bearing column; 3. Moving plate; 4. Insert rod; 5. Support frame; 6. Hydraulic cylinder; 7. Through groove; 8. Fixed plate; 9. Support plate; 10. Moving frame; 11. Linkage plate. DETAILED DESCRIPTION

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meanings as commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of the application are only for the purpose of describing specific embodiments and are not intended to limit this application. The terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0020] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0021] The present invention provides a supporting device for a coal mining machine. Figure 1-4 As shown, it includes a support column 1, a load-bearing column 2 is embedded in the center of the top of the support column 1, a movable plate 3 is welded on the outer wall of the load-bearing column 2, and a plug rod 4 is screwed together at the center of the bottom of the load-bearing column 2, a conical head is provided at the bottom of the plug rod 4, and the plug rod 4 can pass through the bottom of the support column 1, and two support frames 5 are fixedly connected to the outer wall of the support column 1 by bolts. The bottoms of the two support frames 5 are fixedly connected to the hydraulic cylinder 6 by bolts. The top of the load-bearing column 2 and the output end of the hydraulic cylinder 6 are fixedly connected to the bottom of the coal mining machine by bolts. The hydraulic cylinder 6 is provided with hydraulic oil by an external hydraulic oil pump and a hydraulic oil tank. A through slot 7 is provided on the outer wall of one side of 1 near the outer side of the movable plate 3, and a limiting through hole matching the load-bearing column 2 is provided inside the support column 1. The through slot 7 and the limiting through hole are connected, and a fixed plate 8 is fixedly connected to the bottom position on the outer wall of the support column 1 by bolts. A supporting plate 9 is rotatably connected to the outer wall of the fixed plate 8, and a moving frame 10 is slidably connected to the top of the supporting plate 9. A linkage plate 11 is rotatably connected to the inner wall of the moving frame 10, and the linkage plate 11 and the moving plate 3 are rotatably connected. The length value of the load-bearing column 2 is set so that when the coal mining machine presses down the load-bearing column 2 to the lowest point, the supporting plate 9 is in a horizontal state and perpendicular to the support column 1.

[0022] It should be noted that due to the heavy weight of the coal mining machine and the vibration during operation, the soil layer at the bottom of the coal mining machine will gradually sink, causing the coal mining machine to tilt and the coal mining machine to be not stable enough, and then the problem of poor support effect of the coal mining machine support device will occur. This embodiment uses the gravity of the coal mining machine itself to realize the expansion of the support plate 9 and the insertion of the insertion rod 4 into the soil layer. This not only makes the support plate 9 fully contact with the ground after expansion, increases the contact area between the support device and the ground, and shares the weight of the coal mining machine borne by the local soil layer, thereby avoiding the support device from squeezing the soil and sinking it, avoiding the coal mining machine from tilting and ensuring stability during operation, and positioning the support device by inserting the insertion rod 4 into the soil layer to avoid the support device from being offset due to the vibration of the coal mining machine during operation.

[0023] Specifically, in this embodiment, this scheme mainly includes support columns 1, load-bearing columns 2 and support plates 9. When in use, the load-bearing columns 2 are installed and fixed on the bottom of the coal mining machine, and the output end of the hydraulic cylinder 6 is fixedly connected to the bottom of the coal mining machine. When the coal mining machine moves to the required position, the hydraulic cylinder 6 releases the force. After losing the support of the hydraulic cylinder 6, the coal mining machine moves downward under the action of its own gravity, and the load-bearing columns 2 at the bottom of the coal mining machine move downward synchronously. During the downward movement of the load-bearing columns 2, the movable plate 3 and the insertion rod 4 are driven downward. The insertion rod 4 is gradually inserted into the soil layer. As the movable plate 3 moves downward, the insertion rod 4 is gradually inserted into the soil layer. The linkage plate 11 is rotatably connected to the movable plate 3 on one side, and is rotatably connected to the movable frame 10 on the other side. Since the length of the linkage plate 11 is fixed, when one end of the linkage plate 11 moves vertically downward, the movable frame 10 slides linearly on the support plate 9, and the other end of the linkage plate 11 pushes the movable frame 10 to move. By utilizing the rotational connection between the support plate 9 and the fixed plate 8, the support plate 9 is pushed to rotate until it is in close contact with the ground. The contact area with the ground is increased by the support plate 9, and the weight of the coal mining machine is shared, thereby preventing the support device from squeezing the soil and sinking.

[0024] In a further preferred embodiment of the present invention, Figure 2-3 As shown, there are eight movable plates 3 and eight fixed plates 8 in total, and the eight movable plates 3 and eight fixed plates 8 are symmetrically arranged in groups of two on the outer side walls of the load-bearing column 2 and the support column 1 respectively.

[0025] In this embodiment, by arranging eight movable plates 3 and eight fixed plates 8 in groups of two, four linkage plates 11 and four support plates 9 can be set, so that the four support plates 9 rotate synchronously and fit the ground, maximizing the contact area between the support plates 9 and the ground and improving the supporting capacity.

[0026] In a further preferred embodiment of the present invention, Figure 1 and Figure 4 As shown, a slider having a T-shaped cross section is provided at the bottom of the movable frame 10 for sliding connection with the supporting plate 9 .

[0027] In this embodiment, the stability of the sliding movement of the movable frame 10 on the supporting plate 9 can be ensured by the T-shaped slider.

[0028] It should be noted that for the aforementioned embodiments, for simplicity of description, they are all expressed as a series of action combinations. However, those skilled in the art should be aware that the present invention is not limited by the order of the actions described, because according to the present invention, certain steps may be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in this specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present invention.

[0029] In the several embodiments provided in this application, it should be understood that the disclosed devices can be implemented in other ways. For example, the device embodiments described above are merely illustrative, such as the division of the above-mentioned units. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the coupling or communication connection between each other shown or discussed can be through some interfaces, and the indirect coupling or communication connection between devices or units can be in the form of telecommunications or other forms.

[0030] The units described above as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0031] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the scope of protection of the present invention. Obviously, the embodiments described are only some embodiments of the present invention, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making any creative work are within the scope to be protected by the present invention. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the present invention according to the circumstances without conflict, without making any creative work, so as to obtain different other technical solutions that do not deviate from the concept of the present invention in essence, and these technical solutions also fall within the scope to be protected by the present invention.

Claims

1. A supporting device for a coal mining machine, characterized in that: include: Support column (1); A load-bearing column (2) embedded in the center of the top of the support column (1); A movable plate (3) welded to the outer side wall of the load-bearing column (2); and An inserting rod (4) screwed onto the central position of the bottom of the load-bearing column (2) through a thread; A support frame (5) fixed to the outer side wall of the support column (1) by bolts; A hydraulic cylinder (6) fixed to the bottom of the support frame (5) by bolts; A through groove (7) is provided on the outer wall of the support column (1) at a position below the support frame (5); A fixing plate (8) welded to the bottom of the support column (1) near the bottom end; a supporting plate (9) rotating on the outer side wall of the fixing plate (8); a movable frame (10) sliding on the top of the support plate (9); A linkage plate (11) is rotated on the inner side wall of the movable frame (10), and the linkage plate (11) and the movable plate (3) are rotationally connected.

2. A supporting device for a coal mining machine according to claim 1, characterized in that: A position-limiting through hole matching the load-bearing column (2) is provided inside the support column (1), and the through groove (7) is connected to the position-limiting through hole.

3. A supporting device for a coal mining machine according to claim 1, characterized in that: The top of the load-bearing column (2) and the output end of the hydraulic cylinder (6) are both fixedly connected to the bottom of the coal mining machine via bolts.

4. A supporting device for a coal mining machine according to claim 1, characterized in that: There are eight movable plates (3) and eight fixed plates (8) in total, and each group of two of the eight movable plates (3) and eight fixed plates (8) are symmetrically arranged on the outer side walls of the load-bearing column (2) and the support column (1).

5. A supporting device for a coal mining machine according to claim 1, characterized in that: The bottom of the movable frame (10) is provided with a sliding block with a T-shaped cross section required for sliding connection with the supporting plate (9).

6. A supporting device for a coal mining machine according to claim 1, characterized in that: The bottom of the insertion rod (4) is provided with a conical head, and the insertion rod (4) can pass through the bottom of the support column (1).

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