Transport gate folding support

Abstract

This utility model discloses a gantry-type folding support for a transport roadway, comprising two bidirectional hydraulic cylinders. Each bidirectional hydraulic cylinder includes an upper telescopic part that extends upwards and a lower telescopic part that extends downwards. A crossbeam is fixed to the upper end of the upper telescopic part of each bidirectional hydraulic cylinder, and a support seat is fixed to the lower telescopic part of each bidirectional hydraulic cylinder. Guide grooves are provided on both sides of each bidirectional hydraulic cylinder. This utility model can effectively ensure safe production in coal mines and improve production efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of advanced support technology for underground coal mine roadways, specifically relating to a folding portal frame for transport roadways. Background Technology

[0002] my country's coal mining industry is at a critical stage of transformation and upgrading. As the world's largest coal producer and consumer, China's coal production exceeded 4.5 billion tons in 2022, accounting for more than 50% of global production. Intelligent development in coal mines is rapid, with the widespread application of technologies such as 5G and the Internet of Things, driving the construction of "smart mines." The safety situation continues to improve, with a significant decrease in the accident rate and steady progress in standardization. The industry is actively promoting green mining and clean, efficient utilization technologies, such as backfilling mining and ultra-low emissions, to reduce environmental impact. To adapt to the industry's continued development towards intelligence, greening, and efficiency, and to provide support for energy security and sustainable development, the current reliance on underground forklifts for transporting coal mine roadways urgently needs to be changed. Therefore, researching a portal-type folding support for transport roadways is of great significance for ensuring safe production in transport roadways, improving coal resource recovery rates, simplifying transport roadway support processes, promoting efficient and intelligent underground safe production in coal mines, and realizing green and efficient mining in the coal industry.

[0003] Coal mine transport roadways are vital channels for coal mine production, and their support methods directly affect roadway stability and safe production. Currently, the main support methods are bolt support and shotcrete support. Shotcrete support combines the advantages of bolt support and shotcrete support. Shotcrete can promptly seal the surrounding rock surface, preventing weathering and spalling, and works in conjunction with bolts to enhance the overall stability of the surrounding rock. Shotcrete support is suitable for roadways with fractured surrounding rock and poor self-stabilizing capacity, effectively controlling deformation and collapse of the surrounding rock and improving the long-term stability of the roadway. Although shotcrete support can be constructed immediately within hours of roadway excavation, it still cannot provide immediate support close to the working face, and its level of automation is low (requiring considerable manual intervention in many aspects). For example, shotcrete application, bolt installation, and anchor cable installation still require workers to personally operate at the working face. Therefore, to achieve intelligent and efficient coal mine construction, it is necessary to research a gantry-type folding support for transport roadways that can provide immediate support close to the working face, move as the working face is mined, and simplify the support process while ensuring safe coal mine production. Utility Model Content

[0004] The purpose of this utility model is to provide a gantry-type folding support for transport roadways, which solves the problems of low intelligence and inability to provide close support to the working face in traditional support methods.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a gantry-type folding support for transport channels, comprising two bidirectional hydraulic cylinders, each of which includes an upper telescopic part that extends upward and a lower telescopic part that extends downward. A crossbeam is fixed to the upper end of the upper telescopic part of the two bidirectional hydraulic cylinders, and a support seat is fixed to the lower telescopic part of each bidirectional hydraulic cylinder. Guide grooves are provided on both sides of each bidirectional hydraulic cylinder.

[0006] The technical solution of this utility model also has the following characteristics:

[0007] The crossbeam is a telescopic crossbeam.

[0008] The bottom of the two-way hydraulic cylinder is equipped with casters.

[0009] The casters consist of swivel wheels.

[0010] Each set of wheels contains two omnidirectional wheels.

[0011] Connecting seats are fixed on both sides of the lower end of the two-way hydraulic cylinder.

[0012] The guide groove is a strip-shaped groove.

[0013] Two adjacent transport roadway gantry folding supports are connected by a pair of intersecting folding rods.

[0014] The beneficial effects of this utility model are as follows: Compared with traditional transport roadway support methods, this utility model's gantry-type folding support for transport roadways adopts a self-moving and foldable gantry-type folding support, which can promptly support the working face, ensure the safety of the mining area, improve coal transport efficiency, and promote the intelligent, efficient, and less-manned development of mining areas. Therefore, adopting a gantry-type folding support for transport roadways can effectively ensure safe production in coal mines and improve production efficiency. Attached Figure Description

[0015] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0016] Figure 1 This is a front view of a transport chute folding bracket according to the present invention.

[0017] Figure 2 This is a schematic diagram of the working state of a gantry-type folding support for a transport roadway in an underground mine, according to the present invention.

[0018] In the diagram, 1. bidirectional hydraulic cylinder; 2. upper telescopic part; 3. crossbeam; 4. belt conveyor; 5. moving wheel; 6. support seat; 7. lower telescopic part; 8. guide groove; 9. connecting seat; 10. folding rod; 11. pulling cart; 12. taking-up cart. Detailed Implementation

[0019] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0020] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0021] Example 1

[0022] like Figure 1 As shown, the present invention provides a folding support for a transport channel, comprising two bidirectional hydraulic cylinders 1. Each bidirectional hydraulic cylinder 1 includes an upper telescopic part 2 that extends upward and a lower telescopic part 7 that extends downward. A crossbeam 3 is fixed to the upper end of the upper telescopic part 2 of the two bidirectional hydraulic cylinders 1. A support seat 6 is fixed to the lower telescopic part 7 of each bidirectional hydraulic cylinder 1. Guide grooves 8 are provided on both sides of each bidirectional hydraulic cylinder 1. A moving wheel 5 is provided at the bottom of the bidirectional hydraulic cylinder 1.

[0023] During operation, the belt conveyor 4 is arranged between two bidirectional hydraulic cylinders 1 to transport the collected coal resources. The two adjacent transport roadway gantry folding supports are foldably hinged together.

[0024] like Figure 2As shown, during the frame shifting process, the frame-pulling trolley 11 connects to the foremost transport roadway gantry-type folding support. At this time, the upper extension part 2 of the bidirectional hydraulic cylinder 1 of the transport roadway gantry-type folding support that needs to be moved forward is in a retracted state, the crossbeam 3 does not support the roof of the coal mine roadway, the lower extension part 7 of the bidirectional hydraulic cylinder 1 is in a retracted state, the support seat 6 does not contact the bottom of the roadway, and the moving wheel 5 contacts the bottom of the roadway. As the frame-pulling trolley 11 moves forward, the several transport roadway gantry-type folding supports that need to be moved forward will gradually open. After they are all opened, the upper extension part 2 of the bidirectional hydraulic cylinder 1 will be in an extended state, the crossbeam 3 will support the roof of the coal mine roadway, the lower extension part 7 of the bidirectional hydraulic cylinder 1 will also be in an extended state, the support seat 6 will contact the bottom of the roadway, and the moving wheel 5 will no longer contact the bottom of the roadway. During this process, the upper extension part 2 and the lower extension part 7 of the bidirectional hydraulic cylinder 1 of the transport roadway gantry folding support that does not need to be moved are both in the retracted state. In order to better support the roadway roof, for the transport roadway gantry folding support that does not need to be moved, a transport roadway gantry folding support can be selected at intervals so that the upper extension part 2 and the lower extension part 7 of its bidirectional hydraulic cylinder 1 are both in the extension and retraction state to support the top of the roadway.

[0025] like Figure 2 As shown, during the take-up process, the take-up cart 12 connects to the last transport roadway gantry folding support. At this time, the upper extension part 2 of its bidirectional hydraulic cylinder 1 will gradually be in the retracted state. The crossbeam 3 does not support the roof of the coal mine roadway, and the lower extension part 7 of the bidirectional hydraulic cylinder 1 will also be in the retracted state. The support seat 6 does not contact the bottom of the roadway, and the moving wheel 5 contacts the bottom of the roadway. As the take-up cart 12 moves forward, the transport roadway gantry folding support will gradually retract towards the front one. In this way, the take-up of multiple transport roadway gantry folding supports is gradually completed.

[0026] Example 2

[0027] like Figure 1 As shown in Embodiment 1, Embodiment 2 of this utility model, a folding support for a transport channel, also includes two bidirectional hydraulic cylinders 1. Each bidirectional hydraulic cylinder 1 includes an upper telescopic part 2 that extends upward and a lower telescopic part 7 that extends downward. A crossbeam 3 is fixed to the upper end of the upper telescopic part 2 of the two bidirectional hydraulic cylinders 1. A support seat 6 is fixed to the lower telescopic part 7 of each bidirectional hydraulic cylinder 1. Guide grooves 8 are provided on both sides of each bidirectional hydraulic cylinder 1. A moving wheel 5 is provided at the bottom of the bidirectional hydraulic cylinder 1.

[0028] Unlike Embodiment 1, in Embodiment 2 of this utility model, the crossbeam 3 is a telescopic crossbeam. The crossbeam 3 can extend and retract according to different working conditions to adapt to different working environments.

[0029] Example 3

[0030] like Figure 1 As shown in Embodiment 1, Embodiment 3 of this utility model, a folding support for a transport chute, also includes two bidirectional hydraulic cylinders 1. Each bidirectional hydraulic cylinder 1 includes an upper telescopic part 2 that extends upward and a lower telescopic part 7 that extends downward. A crossbeam 3 is fixed to the upper end of the upper telescopic part 2 of the two bidirectional hydraulic cylinders 1. A support seat 6 is fixed to the lower telescopic part 7 of each bidirectional hydraulic cylinder 1. Guide grooves 8 are provided on both sides of each bidirectional hydraulic cylinder 1. A moving wheel 5 is provided at the bottom of the bidirectional hydraulic cylinder 1.

[0031] Unlike Embodiment 1, in Embodiment 3 of this utility model, the crossbeam 3 is a telescopic crossbeam. The crossbeam 3 can extend and retract according to different working conditions to adapt to different working environments.

[0032] Unlike Embodiment 1, in Embodiment 3 of this utility model, the movable wheel 5 is composed of universal wheels for easy movement; the movable wheel 5 is composed of two universal wheels for stable support and movement.

[0033] Example 4

[0034] like Figure 1 As shown in Embodiment 1, Embodiment 4 of this utility model, a folding support for a transport channel, also includes two bidirectional hydraulic cylinders 1. Each bidirectional hydraulic cylinder 1 includes an upper telescopic part 2 that extends upward and a lower telescopic part 7 that extends downward. A crossbeam 3 is fixed to the upper end of the upper telescopic part 2 of the two bidirectional hydraulic cylinders 1. A support seat 6 is fixed to the lower telescopic part 7 of each bidirectional hydraulic cylinder 1. Guide grooves 8 are provided on both sides of each bidirectional hydraulic cylinder 1. A moving wheel 5 is provided at the bottom of the bidirectional hydraulic cylinder 1.

[0035] Unlike Embodiment 1, in Embodiment 4 of this utility model, the crossbeam 3 is a telescopic crossbeam. The crossbeam 3 can extend and retract according to different working conditions to adapt to different working environments.

[0036] Unlike Embodiment 1, in Embodiment 4 of this utility model, the movable wheel 5 is composed of universal wheels for easy movement; the movable wheel 5 is composed of two universal wheels for stable support and movement.

[0037] Unlike Embodiment 1, in Embodiment 4 of this utility model, two transport roadway gantry folding supports are connected by a pair of intersecting folding rods 10. The intersection of the two folding rods 10 is hinged together, so that the two transport roadway gantry folding supports can be contracted and opened by the pair of folding rods 10.

[0038] Example 5

[0039] like Figure 1 As shown in Embodiment 1, Embodiment 5 of this utility model, a folding support for a transport channel, also includes two bidirectional hydraulic cylinders 1. Each bidirectional hydraulic cylinder 1 includes an upper telescopic part 2 that extends upward and a lower telescopic part 7 that extends downward. A crossbeam 3 is fixed to the upper end of the upper telescopic part 2 of the two bidirectional hydraulic cylinders 1. A support seat 6 is fixed to the lower telescopic part 7 of each bidirectional hydraulic cylinder 1. Guide grooves 8 are provided on both sides of each bidirectional hydraulic cylinder 1. A moving wheel 5 is provided at the bottom of the bidirectional hydraulic cylinder 1.

[0040] Unlike Embodiment 1, in Embodiment 5 of this utility model, the crossbeam 3 is a telescopic crossbeam. The crossbeam 3 can extend and retract according to different working conditions to adapt to different working environments.

[0041] Unlike Embodiment 1, in Embodiment 5 of this utility model, the movable wheel 5 is composed of universal wheels for easy movement; the movable wheel 5 is composed of two universal wheels for stable support and movement.

[0042] Unlike Embodiment 1, in Embodiment 5 of this utility model, two transport roadway gantry folding supports are connected by a pair of intersecting folding rods 10. The intersection of the two folding rods 10 is hinged together, so that the two transport roadway gantry folding supports can be contracted and opened by the pair of folding rods 10.

[0043] Unlike Embodiment 1, in Embodiment 5 of this utility model, two transport roadway gantry folding supports are connected by a pair of intersecting folding rods 10. The intersection of the two folding rods 10 is hinged together, so that the two transport roadway gantry folding supports can be contracted and opened by the pair of folding rods 10.

[0044] Unlike Embodiment 1, in Embodiment 5 of this utility model, a folding support for a transport roadway is provided, with connecting seats 9 fixed on both sides of the lower end of the bidirectional hydraulic cylinder 1. One end of the folding rod 10 is hinged to the connecting seat 9 in one folding support for a transport roadway, and the other end is hinged to the guide groove 8 in another folding support for a transport roadway, thus completing the foldable assembly.

[0045] Example 6

[0046] like Figure 1 As shown in Embodiment 1, Embodiment 6 of this utility model, a folding support for a transport channel, also includes two bidirectional hydraulic cylinders 1. Each bidirectional hydraulic cylinder 1 includes an upper telescopic part 2 that extends upward and a lower telescopic part 7 that extends downward. A crossbeam 3 is fixed to the upper end of the upper telescopic part 2 of the two bidirectional hydraulic cylinders 1. A support seat 6 is fixed to the lower telescopic part 7 of each bidirectional hydraulic cylinder 1. Guide grooves 8 are provided on both sides of each bidirectional hydraulic cylinder 1. A moving wheel 5 is provided at the bottom of the bidirectional hydraulic cylinder 1.

[0047] Unlike Embodiment 1, in Embodiment 6 of this utility model, the crossbeam 3 is a telescopic crossbeam. The crossbeam 3 can extend and retract according to different working conditions to adapt to different working environments.

[0048] Unlike Embodiment 1, in Embodiment 6 of this utility model, the movable wheel 5 is composed of universal wheels for easy movement; the movable wheel 5 is composed of two universal wheels for stable support and movement.

[0049] Unlike Embodiment 1, in Embodiment 6 of this utility model, two transport roadway gantry folding supports are connected by a pair of intersecting folding rods 10. The intersection of the two folding rods 10 is hinged together, so that the two transport roadway gantry folding supports can be contracted and opened by the pair of folding rods 10.

[0050] Unlike Embodiment 1, in Embodiment 6 of this utility model, two transport roadway gantry folding supports are connected by a pair of intersecting folding rods 10. The intersection of the two folding rods 10 is hinged together, so that the two transport roadway gantry folding supports can be contracted and opened by the pair of folding rods 10.

[0051] Unlike Embodiment 1, in Embodiment 6 of this utility model, a folding support for a transport roadway is provided, with connecting seats 9 fixed on both sides of the lower end of the bidirectional hydraulic cylinder 1. One end of the folding rod 10 is hinged to the connecting seat 9 in one folding support for a transport roadway, and the other end is hinged to the guide groove 8 in another folding support for a transport roadway, thus completing the foldable assembly.

[0052] Unlike Embodiment 1, in Embodiment 6 of this utility model, the guide groove 8 is a strip groove, which allows one end of the folding rod 10 to slide up and down inside it via a pin, thereby achieving folding and unfolding.

[0053] The foregoing description illustrates and describes several preferred embodiments of the utility model. However, as previously stated, it should be understood that the utility model is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the utility model concept described herein through the foregoing teachings or the technology or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the utility model should be within the protection scope of the appended claims.

Claims

1. A gantry-type folding support for transport roadways, characterized in that, It includes two bidirectional hydraulic cylinders (1), each of which includes an upper telescopic part (2) that extends upward and a lower telescopic part (7) that extends downward. A crossbeam (3) is fixed to the upper end of the upper telescopic part (2) of the two bidirectional hydraulic cylinders (1), and a support seat (6) is fixed to the lower telescopic part (7) of each bidirectional hydraulic cylinder (1). Guide grooves (8) are provided on both sides of each bidirectional hydraulic cylinder (1).

2. The gantry-type folding support for the transport roadway according to claim 1, characterized in that, The crossbeam (3) is a telescopic crossbeam.

3. The gantry-type folding support for the transport roadway according to claim 2, characterized in that, The bottom of the bidirectional hydraulic cylinder (1) is provided with a moving wheel (5).

4. The gantry-type folding support for the transport roadway according to claim 3, characterized in that, The movable wheel (5) consists of omnidirectional wheels.

5. The gantry-type folding support for the transport roadway according to claim 3, characterized in that, Each of the aforementioned moving wheels (5) contains two omnidirectional wheels.

6. The gantry-type folding support for the transport roadway according to claim 5, characterized in that, Connecting seats (9) are fixed on both sides of the lower end of the bidirectional hydraulic cylinder (1).

7. The gantry-type folding support for the transport roadway according to claim 6, characterized in that, The guide groove (8) is a strip groove.

8. The gantry-type folding support for the transport roadway according to claim 7, characterized in that, Two adjacent transport gantry folding supports are connected by a pair of intersecting folding rods (10).

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