Mechanized formwork hanging device for roadway retention

Abstract

This invention discloses a mechanized formwork hanging device for gob-side entry retention, comprising a traction mechanism connected to a folding mechanism, and a formwork hanging mechanism connected to the folding mechanism. The formwork hanging mechanism includes a front frame, on both sides of which a first frame and a second frame are movably arranged. Two sets of vertically retractable first support mechanisms are respectively installed and fixed on the first and second frames. A pouring pipe is provided above the front frame, and multiple pipe clamps are provided on the pouring pipe. This mechanized formwork hanging device for gob-side entry retention reduces the number of operators, alleviates the labor intensity of workers, improves the degree of mechanization and automation, and achieves efficiency improvement through personnel reduction.

Description

Technical Field

[0001] This invention belongs to the technical field of underground support equipment in coal mines, specifically relating to a mechanized formwork hanging device for roadway retention along the goaf. Background Technology

[0002] The applicant's inventions, namely "Device and Method for Pouring Continuous Concrete Walls along the Goaf in Mining Faces" (Patent No.: ZL 2009 1 0023718.1) and "A Flexible Fiber Template for Goaf Retention and Its Filling Method" (Patent No.: 201510607404.1), are known as flexible formwork concrete goaf retention technology. This technology has been promoted and applied in more than 160 working faces in seven major coal-producing provinces in my country. During the installation of the flexible formwork for goaf retention, coal miners need to use hydraulic single-pillar supports, wooden support columns, etc., to support the flanges of the flexible formwork, and then fix the flanges to the roadway roof. Alternatively, anchor bolts can be used to fix the flanges of the flexible formwork to the roadway roof, thus securing the flexible formwork. After the concrete wall is poured and reaches a certain strength, the hydraulic single-pillar supports and wooden support columns are then removed. Although the flexible formwork roadway retention technology is currently widely used, both of these methods currently require multiple coal miners to work together, which involves a certain degree of labor intensity. In recent years, with the increase in mining intensity and the speed of mining, labor costs have also been increasing year by year. At the same time, the requirements for intelligent construction of working faces are constantly increasing. Therefore, there is an urgent need to develop an efficient and safe mechanized equipment to reduce the labor intensity of workers, improve the degree of mechanization and automation, achieve the goal of reducing manpower and increasing efficiency, and enable the technology to keep pace with the times and meet the requirements of intelligent construction of coal mines. Summary of the Invention

[0003] The purpose of this invention is to provide a mechanized formwork hanging device for gob-side entry retention, so as to reduce the number of workers required for flexible formwork hanging operations in flexible formwork concrete gob-side entry retention technology, reduce the labor intensity of workers, reduce costs, and improve the degree of mechanization and automation.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is: a mechanized formwork hanging device for goaf retention, comprising a traction mechanism, wherein the traction mechanism is connected to a folding mechanism, and the folding mechanism is connected to a formwork hanging mechanism; the formwork hanging mechanism includes a front frame, wherein a first frame and a second frame are movably arranged on both sides of the front frame, and two sets of vertically retractable first support mechanisms are respectively installed and fixed on the first frame and the second frame; a pouring pipe is provided above the front frame, and multiple pipe clamps are provided on the pouring pipe.

[0005] As a preferred embodiment of the present invention, the front frame is provided with two reciprocating drive mechanisms, and the drive ends of the two reciprocating drive mechanisms are respectively connected to the first frame and the second frame.

[0006] As a preferred embodiment of the present invention, each of the first support mechanisms is connected to a hanging mold guide rod at its drive end.

[0007] As a preferred technical solution of the present invention, the first frame and the second frame are respectively provided with limiting mechanisms, and the two limiting mechanisms are located below the hanging mold guide rod.

[0008] As a preferred embodiment of the present invention, a set of second support mechanisms is provided below both the first frame and the second frame.

[0009] As a preferred embodiment of the present invention, both the first frame and the second frame are provided with lateral adjustment mechanisms on their sides.

[0010] As a preferred embodiment of the present invention, the reciprocating drive mechanism, the first support mechanism, the second support mechanism, the limiting mechanism, and the lateral adjustment mechanism are all jacks.

[0011] As a preferred technical solution of the present invention, both the first frame and the second frame are hollow structures.

[0012] As a preferred technical solution of the present invention, the traction mechanism includes a base, on which a plurality of columns and a pushing jack are provided. A top beam is provided on the top of the plurality of columns, and a side guard plate is hinged to one end of the top beam. A side guard jack is provided on the top beam, and the driving end of the side guard jack is connected to the side guard plate.

[0013] As a preferred embodiment of the present invention, the folding mechanism comprises multiple fixed frames, each fixed frame being provided with multiple supporting jacks. Second connecting grooves are provided on both sides of each fixed frame. A top beam is provided at the driving end of each supporting jack. A scissor-type connecting rod is provided between each pair of adjacent fixed frames. The two upper ends of the scissor-type connecting rod are slidably disposed in the two adjacent second connecting grooves, while the two lower ends of the scissor-type connecting rod are hinged to the two adjacent fixed frames. A folding jack is provided on either of the two adjacent fixed frames, and the driving end of the folding jack is slidably disposed in the second connecting groove of the other fixed frame.

[0014] The beneficial effects of this invention are as follows: The mechanized formwork hanging device for gob-side entry retention is an automated device developed for the hanging and pouring of flexible formwork in the construction of flexible formwork gob-side entry retention technology. Through the cooperation of multiple mechanisms, it achieves the function of mechanized formwork hanging, minimizing the number of operators, reducing labor intensity and production costs, and improving the degree of mechanization and automation. By the alternating action of multiple pipe clamps set on the pouring pipe, it is possible to pour multiple flexible formwork concretes in one work cycle, greatly improving the efficiency of formwork hanging. At the same time, operators can perform formwork hanging operations from a safe position away from the support, maximizing personnel safety. Attached Figure Description

[0015] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this invention, illustrate exemplary embodiments of the invention and are used to explain the invention, but do not constitute an undue limitation of the invention. In the drawings:

[0016] Figure 1 This is a schematic diagram of the structure of a mechanized formwork hanging device for roadway retention according to the present invention;

[0017] Figure 2 This is a schematic diagram of the formwork hanging mechanism in a mechanized formwork hanging device for roadway retention according to the present invention;

[0018] Figure 3 for Figure 2 Assembly diagram of the central casting pipe, pipe clamps, and flexible mold;

[0019] Figure 4 This is a schematic diagram of the assembly of the flexible mold and the hanging mold guide rod;

[0020] Figure 5 This is a schematic diagram of the traction mechanism in a mechanized formwork hanging device for roadway retention according to the present invention;

[0021] Figure 6 This is a schematic diagram of the folding mechanism in a mechanized formwork hanging device for roadway retention according to the present invention.

[0022] In the diagram: 1. Traction mechanism, 101. Top beam, 102. First connecting chute, 103. First connecting seat, 104. Base, 105. Pushing jack, 106. Column, 107. Side jack, 108. Side plate; 2. Folding mechanism, 201. Top beam body, 202. Support jack, 203. Limiting chain, 204. Fixed frame, 205. Second connecting chute, 206. Second connecting seat, 207. 1. Scissor linkage; 208. Folding jack; 3. Mold hanging mechanism; 301. Front frame; 302. Second support mechanism; 303. Second frame; 304. Lateral adjustment mechanism; 305. Limiting mechanism; 306. First support mechanism; 307. Mold hanging guide rod; 308. Pipe clamp; 309. Casting pipe; 310. First frame; 311. Third connecting slide; 312. Third connecting seat; 313. Reciprocating drive mechanism. Detailed Implementation

[0023] Embodiments of the present invention 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 the present invention, and should not be construed as limiting the present invention.

[0024] In the description of this invention, the use of "first" and "second" is for the purpose of distinguishing technical features only, and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the order of the technical features indicated.

[0025] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0026] like Figure 1 As shown, a mechanized formwork hanging device for gob-side entry according to the present invention includes a traction mechanism 1, a folding mechanism 2 connected to the traction mechanism 1, and a formwork hanging mechanism 3 connected to the folding mechanism 2. The formwork hanging mechanism includes a front frame 301, with a first frame 310 and a second frame 303 movably arranged on both sides of the front frame 301. Two sets of vertically retractable first support mechanisms 306 are respectively installed and fixed on the first frame 310 and the second frame 303. A pouring pipe 309 is provided above the front frame 301, and multiple pipe clamps 308 are provided on the pouring pipe 309. Two reciprocating drive mechanisms 313 are provided on the front frame 301, and the drive ends of the two reciprocating drive mechanisms 313 are respectively connected to the first frame 310 and the second frame 303. The drive end of each set of first support mechanisms 306 is connected to a formwork hanging guide rod 307.

[0027] Limiting mechanisms 305 are respectively provided on the first frame 310 and the second frame 303. The two limiting mechanisms 305 are located below the hanging mold guide rod 307, which can prevent the hanging mold guide rod 307 from moving down excessively.

[0028] A set of second support mechanisms 302 is provided below both the first frame 310 and the second frame 303. The two sets of second support mechanisms 302 can support the first frame 310 and the second frame 303, making them easy to move.

[0029] Lateral adjustment mechanisms 304 are provided on the sides of both the first frame 310 and the second frame 303, which can facilitate the reciprocating drive mechanism 313 to adjust the width of the first frame 310 and the second frame 303.

[0030] The reciprocating drive mechanism 313, the first support mechanism 306, the second support mechanism 302, the limiting mechanism 305, and the lateral adjustment mechanism 304 are all preferably jacks.

[0031] Both the first frame 310 and the second frame 303 are hollow structures, which ensures that they have greater support strength with a smaller weight.

[0032] like Figure 5 As shown, the traction mechanism 1 includes a base 104, on which multiple columns 106 and a pushing jack 105 are provided. A top beam 101 is provided on the top of the multiple columns 106. A side guard plate 108 is hinged to one end of the top beam 101. A side guard jack 107 is provided on the top beam 101. The driving end of the side guard jack 107 is connected to the side guard plate 108.

[0033] like Figure 6 As shown, the folding mechanism 2 includes multiple fixed frames 204, each fixed frame being equipped with multiple support jacks 202. Each fixed frame 204 has a second connecting groove 205 and a second connecting seat 206 on both sides. The driving end of each support jack 202 is equipped with a top beam 201. A scissor link 207 is provided between each pair of adjacent fixed frames 204. The two upper ends of the scissor link 207 are slidably disposed in the two adjacent second connecting grooves 205, while the two lower ends are hinged to the two adjacent fixed frames 204. A folding jack 208 is provided on any one of the second connecting seats 206 in the two adjacent fixed frames 204, and the driving end of the folding jack 208 is slidably disposed in the second connecting groove 205 of the other fixed frame 204. The two fixed frames 204 are connected together by a limiting chain 203.

[0034] The base 104 of the traction mechanism 1 is provided with a first connecting groove 102 and a first connecting seat 103 on its rear side, and the front frame 301 of the hanging mold mechanism 3 is provided with a third connecting groove 311 and a third connecting seat 312 on its front side. The first connecting groove 102 and the first connecting seat 103, and the third connecting groove 311 and the third connecting seat 312 are respectively fitted with scissor rods 207 and folding jacks 208 between them and the corresponding second connecting grooves 205 and second connecting seats 206.

[0035] Combination Figure 4 The maintenance team carried out the formwork hanging and pouring process. In the initial stage, the first support mechanism 306 was retracted, and the height of the formwork hanging guide rod 307 was lowered. The workers inserted the multi-section formwork hanging guide rod 307 into the flexible mold flange, adjusted the reciprocating drive mechanism 313, and made the design distance between the first frame 310 and the second frame 303 reach the next stage. Then, the first support mechanism 306 was extended to press the formwork hanging guide rod 307 firmly onto the tunnel roof, completing the formwork hanging process. Finally, the concrete was injected into the multi-section flexible mold through the pouring port assembly, completing the pouring of one section of the flexible mold.

[0036] Combination Figure 4 and Figure 6 After the first section of flexible formwork concrete reaches a certain strength, the first support mechanism 306 retracts a certain distance, and then the top beam 201 of the folding mechanism retracts. The scissor rod 207 folds under the action of the folding jack 208, and the folding mechanism 2 compresses by one step, thereby driving the hanging formwork mechanism 3 to move forward by one step. At the same time, the No. 1 and No. 6 pipe clamps on the pouring pipe of the hanging formwork mechanism 3 are opened, the second section of the multi-section flexible formwork is pulled open, the No. 6 pipe clamp is locked, the support jack 202 of the folding mechanism 2 and the first support mechanism 306 of the hanging formwork mechanism 3 are raised, the tunnel support is completed, and the second section of the multi-section flexible formwork is poured. This process is repeated until the pouring of the entire flexible formwork wall is completed.

[0037] Combination Figure 1 The production team provides support, which involves opening the folding mechanism 2 of the mechanized formwork hanging device for roadway retention, which is compressed to its shortest state. As the end support of the working face moves forward, the traction jack of the traction mechanism 1 connected to the end support is stretched. Then, the traction mechanism 1 is lowered, the traction jack retracts, and the traction mechanism 1 is pulled one step. At this time, the first scissor link 207 between the traction mechanism 1 and the folding mechanism 2 is pulled apart. As the working face advances, the folding mechanism 2 is pulled apart in sequence until the folding mechanism is fully opened.

[0038] The foregoing description illustrates and describes several preferred embodiments of the invention. However, as previously stated, it should be understood that the invention 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 inventive concept described herein through the foregoing teachings or techniques 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 invention should be within the protection scope of the appended claims.

Claims

1. A mechanized formwork hanging device for roadway retention along the goaf, characterized in that, The system includes a traction mechanism (1), which is connected to a folding mechanism (2), which is connected to a mold hanging mechanism (3). The mold hanging mechanism (3) includes a front frame (301), on both sides of the front frame (301) a first frame (310) and a second frame (303) are movably provided. Two sets of vertically extendable first support mechanisms (306) are respectively installed and fixed on the first frame (310) and the second frame (303). A pouring pipe (309) is provided above the front frame (301), and multiple pipe clamps (308) are provided on the pouring pipe (309). The front frame (301) is provided with two reciprocating drive mechanisms (313), and the drive ends of the two reciprocating drive mechanisms (313) are respectively connected to the first frame (310) and the second frame (303); Each of the first support mechanisms (306) in each group is connected to a hanging mold guide rod (307) at its drive end. Limiting mechanisms (305) are respectively provided on the first frame (310) and the second frame (303), and the two limiting mechanisms (305) are located below the hanging mold guide rod (307); A set of second support mechanisms (302) is provided below both the first frame (310) and the second frame (303). The sides of both the first frame (310) and the second frame (303) are provided with lateral adjustment mechanisms (304). The folding mechanism (2) includes multiple fixed frames (204), each fixed frame is provided with multiple support jacks (202), both sides of the fixed frame (204) are provided with second connecting grooves (205), the top of the support jacks (202) is provided with a top beam (201), and a scissor link (207) is provided between each two adjacent fixed frames (204). The two upper ends of the scissor link (207) are respectively slidably disposed in the two adjacent second connecting grooves (205), and the two lower ends of the scissor link (207) are hinged to the two adjacent fixed frames (204). A folding jack (208) is provided on any one of the two adjacent fixed frames (204), and the driving end of the folding jack (208) is slidably disposed in the second connecting groove (205) in the other fixed frame (204).

2. The mechanized formwork hanging device for roadway retention according to claim 1, characterized in that, The reciprocating drive mechanism (313), the first support mechanism (306), the second support mechanism (302), the limiting mechanism (305), and the lateral adjustment mechanism (304) are all jacks.

3. The mechanized formwork hanging device for roadway retention according to claim 1, characterized in that, Both the first frame (310) and the second frame (303) are hollow structures.

4. The mechanized formwork hanging device for roadway retention according to claim 1, characterized in that, The traction mechanism (1) includes a base (104), on which a plurality of columns (106) and a push jack (105) are provided. A top beam (101) is provided on the top of the plurality of columns (106). A side plate (108) is hinged to one end of the top beam (101). A side plate jack (107) is provided on the top beam (101). The driving end of the side plate jack (107) is connected to the side plate (108).

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