Mining face-facing protection device

Abstract

The invention discloses a mining face-facing protection device which comprises a bearing base, a telescopic rod, a top protection plate, a face-facing piece, a first connecting piece, a second connecting piece, a hydraulic rod, a pin shaft and the like. The bearing base is fixed to the rear end of the mining face-facing protection device and used for connecting and fixing the mining face-facing protection device; according to the mining face-facing protection device, five telescopic rods and a face-facing device move in space mainly through stretching and retracting of hydraulic rods, the telescopic rods are fixed to the front section of a bearing base through pin shafts and embedded in a top protection plate, the hydraulic rods are arranged in the top protection plate, and the top protection plate is fixed to the bottom of the bearing base through pin shafts. The top protection plate is connected with the face facing device through a pin shaft. Operators can stretch out and draw back of the telescopic rod, swing of the face facing device, swing of the top protection plate and the like by controlling the hydraulic rod. The mining face-facing protection device has the advantages that the face-facing protection effect can be achieved by placing the mining face-facing protection device at the front end of the fully-mechanized excavating face by an operator, the safety of workers during operation is guaranteed, the situation that the workers are accidentally injured due to falling of coal rock on the fully-mechanized excavating face is prevented, and meanwhile laying of an anchor net is facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of mine face protection, in particular to a mine face protection device. Background Art

[0002] In recent years, in order to meet the requirements of large-scale mechanical equipment such as large tunneling machines, gantry hydraulic supports, self-moving hydraulic supports, etc. to operate normally in the tunnels, the cross-sectional dimensions of the mine tunnels have continued to increase. The biggest impact of the large tunnel cross-section is that coal and rock often fall during the construction of the comprehensive excavation face section, resulting in injuries to operators. In my country's coal industry, the safety of operators is the first priority. Operators need to complete processes such as laying nets, drilling, filling anchors, and installing steel belts at the front of the comprehensive excavation face. Large-scale mechanical equipment is a major trend in the coal industry. Therefore, in order to ensure the safety of operators, it is necessary to develop a device that can ensure that operators can work safely at the tunnel section.

[0003] The applicant has found that in large-scale mechanical equipment, such as portal hydraulic supports and self-moving hydraulic supports, they have become important design trends for temporary support of tunnels. Many scholars at home and abroad have designed hydraulic supports suitable for different tunnels. Therefore, if a face protection device that can cooperate with the hydraulic support is designed, on the one hand, it can play a temporary support role together with the hydraulic support, and on the other hand, it can move with the hydraulic support, so that the face protection device is always located at the forefront of the comprehensive excavation face. Such a mine face protection device can ensure the safety of operators and improve the strength and efficiency of temporary support. Summary of the invention

[0004] The purpose of the present invention is to propose a mine face protection device to provide a solution to the above-mentioned background technology. The mine face protection device can ensure the safety of workers when performing processes such as laying nets, drilling and installing steel belts in the tunnel section, and can also provide certain temporary support to prevent roof collapse.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: it is composed of five groups of identical mechanisms, the receiving base can be a structure on a hydraulic support, or a structure on other devices, the receiving base is respectively provided with pin hole one and pin hole two, the telescopic rod is provided with pin hole three and pin hole four, the receiving base and the telescopic rod are connected together through a first pin shaft, the receiving base is connected to the bottom of the first hydraulic rod through a second pin shaft, and the telescopic rod is connected to the top of the first hydraulic rod through a third pin shaft.

[0006] As a preferred embodiment of the present invention, the telescopic rod is embedded in the roof guard, a second hydraulic rod is arranged inside the roof guard, a pin hole five is opened at the bottom of the roof guard, pin holes six, seven and eight are opened at the front end of the roof guard, and the roof guard is connected to the bottom of the third hydraulic rod through a fourth pin shaft.

[0007] As a preferred embodiment of the present invention, the front end of the top guard plate is connected to the connecting member 1 through the fifth pin shaft, the connecting member 1 is provided with pin hole 9 and pin hole 10, the connecting member 1 is connected to the connecting member 2 through the sixth pin shaft, the connecting member 2 is provided with pin hole 11 and pin hole 12, the connecting member 1 is connected to the top of the third hydraulic rod through the sixth pin shaft, and the sixth pin shaft connects the connecting member 1, the connecting member 2 and the third hydraulic rod together.

[0008] As a preferred embodiment of the present invention, the top guard is connected to the face-facing member through the seventh pin shaft, the face-facing member is provided with pin holes 13, 14 and 15, the face-facing member is connected to the connecting member 2 through the eighth pin shaft. The face-facing member can be connected to other devices through the ninth pin shaft.

[0009] As a preferred embodiment of the present invention, pin holes are provided at the top and bottom of the first, second and third hydraulic rods, and the pin holes provided at the top and bottom of the hydraulic rods can cooperate with corresponding pin shafts.

[0010] As a preferred embodiment of the present invention, reinforcing ribs are welded on the back of the face member, the face member can swing with the extension and retraction of the third hydraulic rod, the top guard plate and the telescopic rod can swing with the extension and retraction of the first hydraulic rod, and the telescopic rod can be extended and retracted by the second hydraulic rod built into the top guard plate.

[0011] As a preferred embodiment of the present invention, the mine face protection is composed of five groups of identical mechanisms, all of the parts are one group of mechanisms of the mine face protection device, and all of the parts are applicable to the remaining four groups of mechanisms.

[0012] The specific operation method of the present invention comprises the following steps: S1: The receiving base (which can be a structure on a hydraulic support, or the structure of the receiving base can be fixed on other devices) moves the mine face protection device to the front end of the comprehensive excavation face; S2: The first hydraulic rod extends to push the top guard plate and the telescopic rod to a horizontal position, and the first hydraulic rod contracts to pull the top guard plate and the telescopic rod down; S3: The second hydraulic rod extends to push the top guard plate forward, and the second hydraulic rod retracts to pull the top guard plate backward; S4: The third hydraulic rod extends to push the face member to swing upward, and the third hydraulic rod contracts to pull the face member to swing downward; S5: Maintain a proper angle to prevent coal and rock from falling in front of the face piece, which would affect the workers’ work; S6: Wait for the tunnel boring machine to finish operation and move the mining face protection device to the front end of the comprehensive excavation face.

[0013] S7: Repeat steps S2-S6.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention is a mine face protection device, which is composed of five groups of identical mechanisms, and the face protection and temporary support of the roof are realized through the synchronous operation of the five groups of mechanisms. The swing of each group of components is adjusted by synchronously controlling each group of hydraulic rods.

[0015] 2. The present invention is a mining face protection device, which can achieve temporary support for the roof by extending the first hydraulic rod to push the roof guard and the telescopic rod to a horizontal position. By contracting the first hydraulic rod, the roof guard and the telescopic rod can be lowered to allow the face protection device to protect the coal and rock in the middle position.

[0016] 3. The present invention is a mining face protection device. By extending and retracting the second hydraulic rod, the top guard plate can be extended forward or retracted backward, thereby protecting coal and rock at different positions.

[0017] 4. The present invention is a mining face protection device. By extending and retracting the third hydraulic rod, the face component can be swung up and down to protect coal and rock at different angles. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings: Figure 1 It is a three-dimensional structural schematic diagram of a mining face protection device of the present invention; Figure 2 It is a structural schematic diagram of a face protection device for a mine and a top guard plate of the present invention; Figure 3 It is a structural schematic diagram of a face protection device for a mine and a top guard plate of the present invention; Figure 4 It is a structural schematic diagram of a face-facing member and a third hydraulic rod in a face-facing protection device for mining according to the present invention; Figure 5 It is a structural schematic diagram of a third hydraulic rod, a connecting piece 1 and a connecting piece 2 in a mining face protection device of the present invention; Figure 6 It is a structural schematic diagram of a third hydraulic rod, a connecting piece 1 and a connecting piece 2 in a mining face protection device of the present invention; Figure 7It is a structural schematic diagram of a top guard plate and a telescopic rod in a mine face protection device of the present invention; Figure 8 It is a structural schematic diagram of a top guard plate in a mine face protection device of the present invention; Fig. 9 It is a structural schematic diagram of a receiving base in a mining face protection device of the present invention; Fig.10 It is a structural schematic diagram of a face-facing component in a face-facing protection device for mining according to the present invention; Fig.11 It is a structural schematic diagram of a top guard plate and a telescopic rod in a mine face protection device of the present invention; Fig.12 It is a side view of a top guard plate and a telescopic rod in a mining face protection device of the present invention; Fig.13 This is a side view of a mining face protection device of the present invention; Fig.14 It is a side view of a top guard plate and a second hydraulic rod in a mining face protection device of the present invention; In the figure: 1, receiving base; 2, pin hole one; 3, pin hole two; 4, telescopic rod; 5, pin hole three; 6, pin hole four; 7, first pin shaft; 8, second pin shaft; 9, first hydraulic rod; 10, third pin shaft; 11, top guard plate; 12, second hydraulic rod; 13, pin hole five; 14, pin hole six; 15, pin hole seven; 16, pin hole eight; 17, fourth pin shaft; 18, third hydraulic rod; 19, fifth pin shaft; 20, connecting piece one; 21, pin hole nine; 22, pin hole ten; 23, sixth pin shaft; 24, connecting piece two; 25, pin hole eleven; 26, pin hole twelve; 27, seventh pin shaft; 28, face piece; 29, pin hole thirteen; 30, pin hole fourteen; 31, pin hole fifteen; 32, eighth pin shaft; 33, ninth pin shaft. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0020] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0021] See also Figure 1 , Figure 7 , Fig. 9 , Figure 12-13 The present invention provides a technical solution: the mining face protection is composed of five groups of identical mechanisms, the receiving base 1 can be a structure on a hydraulic support, or a structure on other devices, the receiving base 1 is respectively provided with a pin hole 2 and a pin hole 3, the telescopic rod 4 is provided with a pin hole 3 5 and a pin hole 4 6, the receiving base 1 and the telescopic rod 4 are connected together through a first pin shaft 7, the receiving base 1 is connected to the bottom of the first hydraulic rod 9 through a second pin shaft 8, and the telescopic rod 4 is connected to the top of the first hydraulic rod 9 through a third pin shaft 10.

[0022] See also Figure 1 , Figure 7-8 , Figure 11-14 The present invention provides a technical solution: the telescopic rod 4 is embedded in the top guard plate 11, a second hydraulic rod 12 is arranged inside the top guard plate 11, a pin hole 5 13 is opened at the bottom of the top guard plate 11, a pin hole 6 14, a pin hole 7 15 and a pin hole 8 16 are opened at the front end of the top guard plate 11, and the top guard plate 11 is connected to the bottom of the third hydraulic rod 18 through a fourth pin shaft 17.

[0023] See also Figure 1-2 , Figure 5-8 , Figure 11-14 The present invention provides a technical solution: the front end of the top guard plate 11 is connected to the connecting piece 20 through the fifth pin shaft 19, the connecting piece 20 is provided with a pin hole 9 21 and a pin hole 10 22, the connecting piece 20 is connected to the connecting piece 2 24 through the sixth pin shaft 23, the connecting piece 2 24 is provided with a pin hole 11 25 and a pin hole 12 26, the connecting piece 20 is connected to the top of the third hydraulic rod 18 through the sixth pin shaft 23, and the sixth pin shaft 23 connects the connecting piece 20, the connecting piece 2 24 and the third hydraulic rod 18 together.

[0024] See also Figure 1-4 , Fig.10 , Fig.13 The present invention provides a technical solution: the top guard plate 11 is connected to the face-facing member 28 through the seventh pin shaft 27, the face-facing member 28 is provided with a pin hole 13 29, a pin hole 14 30 and a pin hole 15 31, and the face-facing member 28 is connected to the connecting member 2 24 through the eighth pin shaft 32. The face-facing member 28 can be connected to other devices through the ninth pin shaft 33.

[0025] See also Figure 4 , Figure 5-7 , Fig.14 The present invention provides a technical solution: the first 9, second 12, and third hydraulic rods 18 are provided with pin holes at the top and bottom, and the pin holes at the top and bottom of the hydraulic rods can cooperate with corresponding pin shafts.

[0026] See also Figure 4 , Figure 5-7 , Fig.10 , Fig.14 The present invention provides a technical solution: a reinforcing rib is welded on the back of the face member 28, the face member 28 can swing with the extension and retraction of the third hydraulic rod 18, the top guard plate 11 and the telescopic rod 4 can swing with the extension and retraction of the first hydraulic rod 9, and the telescopic rod 4 can be extended and retracted through the second hydraulic rod 12 built into the top guard plate 11.

[0027] See also Figure 1-14 The present invention provides a technical solution: the mine face protection is composed of five groups of identical mechanisms, all of the parts are one group of parts of the mine face protection device, and all of the parts are applicable to the remaining four groups of mechanisms.

[0028] See also Figure 1-14 The specific operation method of the present invention includes the following steps: S1: The receiving base 1 (which can be a structure on a hydraulic support, or the structure of the receiving base can be fixed on other devices) moves the mine face protection device to the front end of the comprehensive excavation face; S2: The first hydraulic rod 9 extends to push the top guard plate 11 and the telescopic rod 4 to a horizontal position, and the first hydraulic rod 9 contracts to pull the top guard plate 11 and the telescopic rod 4 down; S3: The second hydraulic rod 12 extends to push the top guard plate 11 forward, and the second hydraulic rod 12 retracts to pull the top guard plate 11 backward; S4: The third hydraulic rod 18 extends to push the face member 28 to swing upward, and the third hydraulic rod 18 contracts to pull the face member 28 to swing downward; S5: Maintain a proper angle to prevent coal and rock from falling in front of the face piece 28, which would affect the workers’ work; S6: Wait for the tunnel boring machine to finish operation and move the mining face protection device to the front end of the comprehensive excavation face.

[0029] S7: Repeat steps S2-S6.

[0030] It should be noted that the present invention is a mine face protection device, which is composed of five groups of identical mechanisms, wherein all the parts are parts in one group of mechanisms, and all the parts are applicable to other mechanism parts, wherein the pins, hydraulic rods and other parts are universal standard parts or parts known to technicians in this field, and their structures and principles can be known to technicians in this field through technical manuals or through conventional experimental methods.

[0031] Working principle: The mine face protection device consists of five groups of identical mechanisms, which work synchronously to achieve face protection and temporary support for the roof. Each group of hydraulic rods is controlled synchronously to adjust the swing of each group of components.

[0032] By extending the first hydraulic rod, the roof guard and the telescopic rod are pushed to a horizontal position, thereby achieving temporary support for the roof. By contracting the first hydraulic rod, the roof guard and the telescopic rod can be lowered to allow the face member to protect the coal and rock in the middle position.

[0033] By extending and retracting the second hydraulic rod, the top guard plate can be extended forward or retracted backward, so as to protect coal and rock at different positions.

[0034] By extending and retracting the third hydraulic rod, the face piece can be swung up and down to protect coal and rock at different angles.

[0035] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and range of equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0036] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A mining face protection device, characterized in that: The mining face protection device is composed of five groups of identical support mechanisms, each group of support mechanisms includes a receiving base (1) and a telescopic rod (4), the receiving base (1) can be a structure on a hydraulic support, or a structure on other devices, the receiving base (1) is respectively provided with a pin hole 1 (2) and a pin hole 2 (3), the telescopic rod (4) is provided with a pin hole 3 (5) and a pin hole 4 (6), the receiving base (1) and the telescopic rod (4) are connected together via a first pin shaft (7), the receiving base (1) is connected to the bottom of a first hydraulic rod (9) via a second pin shaft (8), and the telescopic rod (4) is connected to the top of the first hydraulic rod (9) via a third pin shaft (10).

2. A mining face protection device according to claim 1, characterized in that: The telescopic rod (4) is embedded in the top guard plate (11), a second hydraulic rod (12) is arranged inside the top guard plate (11), a pin hole five (13) is opened at the bottom of the top guard plate (11), a pin hole six (14), a pin hole seven (15) and a pin hole eight (16) are opened at the front end of the top guard plate (11), and the top guard plate (11) is connected to the bottom of the third hydraulic rod (18) via a fourth pin shaft (17).

3. A mining face protection device according to claim 2, characterized in that: The front end of the top guard plate (11) is connected to the first connecting member (20) via a fifth pin shaft (19); the first connecting member (20) is provided with a pin hole nine (21) and a pin hole ten (22); the first connecting member (20) is connected to the second connecting member (24) via a sixth pin shaft (23); the second connecting member (24) is provided with a pin hole eleven (25) and a pin hole twelve (26); the first connecting member (20) is connected to the top of the third hydraulic rod (18) via a sixth pin shaft (23); the sixth pin shaft (23) connects the first connecting member (20), the second connecting member (24) and the third hydraulic rod (18) together.

4. A mining face protection device according to claim 3, characterized in that: The top guard plate (11) is connected to the face-facing member (28) via a seventh pin shaft (27); the face-facing member (28) is provided with a pin hole thirteen (29), a pin hole fourteen (30) and a pin hole fifteen (31); the face-facing member (28) is connected to the second connecting member (24) via an eighth pin shaft (32); the face-facing member (28) can be connected to other devices via a ninth pin shaft (33).

5. A mining face protection device according to claim 4, characterized in that: The top and bottom of the first (9), second (12) and third hydraulic rods (18) are provided with pin holes, and the pin holes provided at the top and bottom of the hydraulic rods can be matched with corresponding pin shafts.

6. A mining face protection device according to claim 5, characterized in that: A reinforcing rib is welded on the back of the face member (28); the face member (28) can swing along with the extension and retraction of the third hydraulic rod (18); the top guard plate (11) and the telescopic rod (4) can swing along with the extension and retraction of the first hydraulic rod (9); and the telescopic rod (4) can be extended and retracted by means of a second hydraulic rod (12) built into the top guard plate (11).

7. A mining face protection device according to claim 6, characterized in that: The mining face protection device is composed of five groups of identical mechanisms, and all parts of any one group are applicable to the other four groups of mechanisms.

8. A mining face protection device according to claim 7, characterized in that it includes the following operating steps: S1: The receiving base (1) moves the mining face protection device to the front end of the comprehensive excavation face; S2: the first hydraulic rod (9) extends to push the top guard plate (11) and the telescopic rod (4) to a horizontal position, and the first hydraulic rod (9) retracts to pull the top guard plate (11) and the telescopic rod (4) downward; S3: the second hydraulic rod (12) extends to push the top guard plate (11) forward, and the second hydraulic rod (12) retracts to pull the top guard plate (11) backward; S4: the third hydraulic rod (18) extends to push the face-facing member (28) to swing upward, and the third hydraulic rod (18) contracts to pull the face-facing member (28) to swing downward; S5: Maintain a proper angle to prevent coal and rock from falling in front of the face piece (28) and affecting the workers' work; S6: Wait for the end of the tunnel boring machine operation and move the mine face protection device to the front end of the comprehensive excavation face; S7: Repeat steps S2-S6.

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